CN110847838A

CN110847838A - Sealing device and pumping system with same

Info

Publication number: CN110847838A
Application number: CN201911119488.9A
Authority: CN
Inventors: 张绍东; 杜国栋; 毕新忠; 石世革; 马波; 孟向明; 代旭升; 许燚; 郭海涛; 侯卫山; 高永辉
Original assignee: China Petroleum and Chemical Corp; Sinopec Shengli Oilfield Co Zhuangxi Oil Extraction Plant; Sinopec Shengli Petroleum Administration Co Ltd Training Center
Current assignee: China Petroleum and Chemical Corp; Sinopec Shengli Oilfield Co Zhuangxi Oil Extraction Plant; Sinopec Shengli Petroleum Administration Co Ltd Training Center
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-02-28
Anticipated expiration: 2039-11-15
Also published as: CN110847838B

Abstract

The invention discloses a sealing device and a pumping system with the sealing device. The sealing device includes: a body; the sealing filler containing device comprises a first end cover and a second end cover, wherein the first end cover and the second end cover can be arranged on a body at intervals along a preset direction, a containing cavity for containing sealing filler can be defined among the body, the first end cover and the second end cover, a filling opening is arranged on the peripheral wall surface of the containing cavity, a first through hole is formed in the first end cover, and a second through hole is formed in the second end cover; and a cover member movably disposed between an open position and a closed position, the cover member in the open position being capable of avoiding the sprue so as to open the sprue, the cover member in the closed position being capable of covering the sprue so as to close the sprue. By sealing the polish rod by the sealing device according to the embodiment of the invention, the pumping system can continuously operate so as to improve the oil extraction efficiency of the pumping system, and the maintenance difficulty and the maintenance operation can be reduced.

Description

Sealing device and pumping system with same

Technical Field

The present invention relates to the field of petroleum, and in particular, to a seal and a pumping system having the seal.

Background

When the existing pumping system is used for oil extraction production, the polish rod is sealed by using a sealing device, so that oil gas leakage is prevented from causing pollution. When the pumping system is produced, the packing is lost because the polish rod continuously rubs against the packing in the sealing device. After the packing is reduced or fails, the sealing device loses the sealing effect, and then oil gas leakage is caused. Therefore, existing pumping systems must be periodically taken out of service to replace the packing in the seal.

Disclosure of Invention

The present invention has been made to overcome the problems occurring in the prior art, and an object of the present invention is to provide a sealing device and a pumping system having the same.

In order to achieve the above object, a first aspect of the present invention provides a sealing device comprising: a body; the sealing packing device comprises a body, a first end cover and a second end cover, wherein the first end cover and the second end cover can be arranged on the body at intervals along a preset direction, an accommodating cavity for accommodating sealing packing can be defined among the body, the first end cover and the second end cover, a filling opening is arranged on the peripheral wall surface of the accommodating cavity, a first through hole is formed in the first end cover, and a second through hole is formed in the second end cover; and the closing cover part can be movably arranged between an opening position and a closing position, is positioned at the opening position and can avoid the filling opening so as to open the filling opening, and is positioned at the closing position and can cover the filling opening so as to close the filling opening.

By sealing the polish rod with the sealing device according to the embodiment of the present invention, it is possible to enable the pumping system to continuously operate so as to improve the oil recovery efficiency of the pumping system.

Optionally, the cover member may be movably disposed along a circumferential direction of the body between the open position and the closed position, and optionally, an opening direction of the injection port is tangential to a circumferential direction of the accommodating chamber.

Optionally, at least a portion of the closure member can be disposed within the receiving cavity,

optionally, the cover member includes a main body and a cover portion provided on the main body, the cover portion extends downward from the main body, at least a portion of the cover portion can be provided in the accommodating cavity, wherein the cover portion of the cover member located in the closed position can cover the filling opening so that the filling opening is not communicated with the accommodating cavity, the cover portion of the cover member located in the open position can avoid the filling opening so that the filling opening is communicated with the accommodating cavity, optionally, the main body is ring-shaped, the main body can be sleeved on the main body, optionally, the cover portion can be adjacent to the peripheral wall surface of the accommodating cavity, the cover portion can be spaced apart from the peripheral wall surface of the accommodating cavity, optionally, the cover portion can be in contact with the peripheral wall surface of the accommodating cavity,

optionally, an avoiding through hole is formed in at least one portion of the sealing cover part, the avoiding through hole of the sealing cover part located at the opening position can be opposite to the filling opening so that the filling opening is communicated with the containing cavity through the avoiding through hole, the avoiding through hole of the sealing cover part located at the closing position can avoid the filling opening so that the filling opening is not communicated with the containing cavity, optionally, the avoiding through hole of the sealing cover part located at the opening position can be opposite to the filling opening in the horizontal direction, optionally, the sealing cover part is annular, the body can be sleeved on the sealing cover part, optionally, the sealing cover part can be adjacent to the peripheral wall surface of the containing cavity, the sealing cover part can be spaced from the peripheral wall surface of the containing cavity, optionally, the sealing cover part can be in contact with the peripheral wall surface of the containing cavity, optionally, the opening direction of the avoiding through hole of the cover member located at the opening position can be tangent to the circumferential direction of the accommodating cavity, and optionally, the edge of the avoiding through hole of the cover member located at the opening position can be flush with the edge of the injection port.

Optionally, the sealing device further comprises a first elastic member, a first end of the first elastic member can abut against the first end cap, a second end of the first elastic member can abut against the sealing cover member, wherein the first elastic member can be in a compressed state so as to normally push the sealing cover member away from the first end cap, optionally, the first elastic member can be in a compressed state so as to normally push the sealing cover member downward,

optionally, one of the peripheral wall surfaces of the sealing cover and the accommodating cavity is provided with a first limiting groove extending in the vertical direction, the other of the peripheral wall surfaces of the sealing cover and the accommodating cavity is provided with a first limiting member capable of being matched in the first limiting groove, the upper end of the first limiting groove can be located below the lower end of the main body, and the first limiting member can be located above at least a part of the injection port,

optionally, one of the sealing cover and the peripheral wall surface of the accommodating cavity is provided with a second limiting groove extending along the circumferential direction of the accommodating cavity, and the other of the sealing cover and the peripheral wall surface of the accommodating cavity is provided with a second limiting member capable of being fitted in the second limiting groove, wherein the second limiting groove has a first end and a second end opposite to each other in the circumferential direction of the accommodating cavity, when the sealing cover is located at the open position, the second limiting member is capable of abutting against the first end of the second limiting groove, when the sealing cover is located at the closed position, the second limiting member is capable of abutting against the second end of the second limiting groove, optionally, the first limiting member and the second limiting member are the same limiting member, and the first limiting groove and the second limiting groove are the same limiting groove,

alternatively, the sealing device further comprises a first elastic member, a first end of the first elastic member can abut against the second end cap, and a second end of the first elastic member can abut against the body, wherein the first elastic member can be in a compressed state so as to normally push the second end cap in a direction adjacent to the first end cap, and optionally, the first elastic member can be in a compressed state so as to normally push the second end cap upward.

Optionally, the sealing device further comprises: the first end of the feeding pipe is connected with the injection port; and a sealing cap detachably provided on the second end of the feed pipe,

optionally, a first sliding groove, a second sliding groove, a first mounting groove and a second mounting groove are arranged on the feeding pipe, each of the first sliding groove and the second sliding groove extends along the axial direction of the feeding pipe, the first sliding groove and the second sliding groove are opposite to each other in the radial direction of the feeding pipe, each of the first mounting groove and the second mounting groove extends along the circumferential direction of the feeding pipe, the first mounting groove is connected with the first sliding groove, and the second mounting groove is connected with the second sliding groove,

optionally, an end portion of the first sliding groove far away from the body is open, an end portion of the second sliding groove far away from the body is open, optionally, an end portion of the first mounting groove is connected with an end portion of the first sliding groove near the body, an end portion of the second mounting groove is connected with an end portion of the second sliding groove near the body, optionally, a width of the first mounting groove decreases in a direction far away from the first sliding groove, and a width of the second mounting groove decreases in a direction far away from the second sliding groove.

Alternatively, the closure member can be provided on the outer peripheral surface of the body,

optionally, the cover member comprises a main body and a cover portion provided on the main body, the cover portion extending downward from the main body, wherein the cover portion of the cover member in the closed position can cover the filling opening to close the filling opening, and the cover portion of the cover member in the open position can avoid the filling opening to open the filling opening, optionally, the main body is ring-shaped, the main body can be sleeved on the main body, optionally, the cover portion can be adjacent to the outer circumferential surface of the main body, the cover portion can be spaced apart from the outer circumferential surface of the main body, optionally, the cover portion can be in contact with the outer circumferential surface of the main body,

optionally, an avoiding through hole is formed in the cover member, the avoiding through hole of the cover member located at the opening position can be opposite to the filling opening so as to open the filling opening, the avoiding through hole of the cover member located at the closing position can avoid the filling opening so as to close the filling opening, optionally, the avoiding through hole of the cover member located at the opening position can be opposite to the filling opening in the horizontal direction, optionally, the cover member is annular, the cover member can be sleeved on the body, optionally, the cover member can be adjacent to the outer peripheral surface of the body, the cover member can be spaced apart from the outer peripheral surface of the body, optionally, the cover member can be in contact with the outer peripheral surface of the body, optionally, the opening direction of the avoiding through hole of the cover member located at the opening position can be tangential to the circumferential direction of the accommodating cavity, optionally, the edge of the avoiding through hole of the cover member in the open position can be flush with the edge of the injection port,

optionally, the sealing device further comprises: the first end of the feeding pipe is connected with the avoiding through hole; and a sealing cap detachably provided on the second end of the feed pipe,

Optionally, the sealing device further comprises: a pressing member for pressing the sealing packing accommodated in the accommodating chamber, at least a portion of the pressing member being capable of being disposed in the accommodating chamber; and a first resilient member, a first end of the first resilient member being capable of abutting against the first end cap, a second end of the first resilient member being capable of abutting against the pressing member, wherein the first resilient member is capable of being in a compressed state so as to normally urge the pressing member in a direction away from the first end cap, optionally the first resilient member is capable of being in a compressed state so as to normally urge the pressing member downward,

Optionally, one of the cover member and the body is provided with a first positioning groove and a second positioning groove, the first positioning groove and the second positioning groove are arranged at intervals along the circumferential direction of the accommodating cavity, and the other of the cover member and the body can be provided with a positioning pin, wherein the positioning pin can be matched in the first positioning groove when the cover member is positioned at the opening position, and the positioning pin can be matched in the second positioning groove when the cover member is positioned at the closing position,

optionally, one of the cover member and the body is provided with a first locking groove and a second locking groove which are provided at a spacing in a circumferential direction of the accommodation chamber, and the other of the cover member and the body can be provided with a locking member which can be fitted in the first locking groove when the cover member is in the open position and can be fitted in the second locking groove when the cover member is in the closed position,

optionally, be equipped with first locking groove and second locking groove on the body, be equipped with the perforating hole on the closing cap spare, the perforating hole is followed the radial of holding the chamber link up the closing cap spare, the locking piece includes: the mounting part is arranged on the outer side surface of the sealing cover part, a mounting groove is arranged on the mounting part, the mounting groove penetrates through the mounting part along the radial direction of the accommodating cavity, and the mounting groove is communicated with the through hole; a locking portion movably provided in the through hole in a radial direction of the accommodation chamber, wherein a part of the locking portion is fittable in the first locking groove and a remaining part of the locking portion is locatable in the through hole when the cover member is in the open position, a part of the locking portion is fittable in the second locking groove and a remaining part of the locking portion is locatable in the through hole when the cover member is in the closed position; the pressing part can be movably arranged in the mounting groove along the radial direction of the accommodating cavity, optionally, at least one part of the pressing part can be matched with the wall surface of the mounting groove through threads, and optionally, the pressing part is a bolt; and the second elastic piece can be arranged in the mounting groove, the first end part of the second elastic piece can abut against the pressing part, and the second end part of the second elastic piece can abut against the locking part.

Optionally, the first end cap is sleeved on the body through a thread, the body is provided with a supporting portion, and the second end cap is arranged on the supporting portion.

A second aspect of the invention provides a pumping system comprising: a polish rod; and the sealing device is the sealing device according to the first aspect of the invention, and the sealing device is sleeved on the polished rod.

Drawings

Fig. 1 is a schematic structural view of a sealing device according to a first embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;

FIG. 3 is a schematic view of a sealing device according to a second embodiment of the present invention;

FIG. 4 is a schematic view of a sealing device according to a second embodiment of the invention, with the cover member in an open position;

FIG. 5 is a schematic view of a sealing device according to a second embodiment of the invention, with the cover member in an open position;

FIG. 6 is a schematic structural view of a sealing packing filling apparatus according to a first embodiment of the present invention;

FIG. 7 is a schematic structural view of a sealing packing filling apparatus according to a second embodiment of the present invention;

FIG. 8 is a schematic structural view of a sealing packing filling apparatus according to a second embodiment of the present invention;

FIG. 9 is an enlarged partial view of FIG. 8;

fig. 10 is a schematic structural view of a belt crusher according to a first embodiment of the present invention;

fig. 11 is a schematic structural view of a belt crusher according to a first embodiment of the present invention;

fig. 12 is a schematic structural view of a belt crusher according to a second embodiment of the present invention;

fig. 13 is a schematic structural view of a belt crusher according to a third embodiment of the present invention;

fig. 14 is a schematic structural view of a belt crusher according to a third embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

A sealing device 10 according to an embodiment of the present invention is described below with reference to the drawings. As shown in fig. 1-5, a sealing device 10 according to an embodiment of the present invention includes a body 110, a closure member 120, a first end cap 130, and a second end cap 140.

The first and

second end caps

130 and 140 can be provided on the body 110 to be spaced apart in a preset direction. The body 110, the first end cap 130 and the second end cap 140 can define a containing cavity 111 for containing the sealing filler 40 therebetween, and a filling opening 113 is formed on a peripheral wall surface 112 of the containing cavity 111. The first end cap 130 is provided with a first through hole 131, and the second end cap 140 is provided with a second through hole 141. The lid member 120 is movably disposed between an open position in which the lid member 120 can avoid the charging port 113 to open the charging port 113 and a closed position in which the lid member 120 can cover the charging port 113 to close the charging port 113.

The sealing filler 40 may be filled into the receiving cavity 111 of the body 110 by using a filling tool (e.g., the sealing filler filling apparatus 20 according to an embodiment of the present invention). When the sealing packing 40 is charged into the accommodating chamber 111 by the charging tool, the cover member 120 can be moved from the closed position to the open position to open the charging port 113. When the sealing packing 40 is filled, the lid member 120 can be moved from the open position to the closed position to close the injection port 113, whereby the sealing packing 40 in the housing chamber 111 can be prevented from leaking out of the injection port 113.

The term "capable" is intended to mean the structure of the sealing device 10 in use. The term "can" elsewhere in the present invention can also be interpreted in this way. For example, "the first end cap 130 and the second end cap 140 can be provided on the body 110 at a distance in a preset direction" means that: when the sealing device 10 is in use, the first end cap 130 and the second end cap 140 are spaced apart from each other along the predetermined direction on the body 110. When the sealing device 10 is not in use, the first end cap 130 and the second end cap 140 may be disposed on the body 110 at intervals along the preset direction, may be disposed on the body 110 without being spaced along the preset direction, and may not be disposed on the body 110 (i.e., the first end cap 130 and the second end cap 140 are separated from the body 110).

The sealing packing that current pumping system was changing sealing device need the shut down production, so not only influences oil recovery efficiency, changes the complex operation of sealing packing moreover, has the risk that the hand is hurt in the sealing packing gland falls.

The sealing device 10 according to the embodiment of the present invention is provided with the injection port 113 and the cover member 120 movable between the open position and the closed position, so that the sealing filler can be replenished into the accommodating chamber 111 through the injection port 113.

Therefore, when the sealing filler in the accommodating cavity 111 needs to be refilled due to consumption, the pumping system 1 does not need to be stopped, and the sealing filler can be refilled into the accommodating cavity 111 through the filling opening 113 only by moving the cover member 120 from the closed position to the open position to open the filling opening 113. Therefore, the faults of equipment and oil wells caused by the production stop of the pumping system 1 can be eliminated, so that the pump detection period is shortened, and the oil recovery time rate is improved. Supplementary notes sealing filler can utilize to annotate the material instrument and accomplish, and is easy and simple to handle, need not to carry out loaded down with trivial details taking out and adding the operation, eliminates operation safety risk, improves work efficiency.

It will be understood by those skilled in the art that the sealing compound may be filled into the containing cavity 111 through the filling port 113 according to the above-mentioned process when the containing cavity 111 is not filled with the sealing compound (e.g., the pumping system 1 is not started).

Therefore, by sealing the polished rod 20 using the sealing device 10 according to the embodiment of the present invention, not only can the pumping system 1 be continuously operated to improve the oil recovery efficiency of the pumping system 1, but also the maintenance difficulty can be reduced and the maintenance operation can be simplified.

As shown in fig. 1-5, the sealing device 10 may include a body 110, a closure member 120, a first end cap 130, and a second end cap 140.

The body 110 may be generally cylindrical. The body 110 has a generally cylindrical cavity 118. The cavity 118 may penetrate the body 110 in the preset direction. The predetermined direction may coincide with the up-down direction when the sealing device 10 is in the use state. That is, when the sealing device 10 is in use, the cavity 118 may penetrate the body 110 in the up-down direction (the up-down direction is shown by an arrow E in fig. 1), that is, the upper end portion and the lower end portion of the cavity 118 may be opened. The upper end of the cavity 118 may be entirely open or partially open, and the lower end of the cavity 118 may be entirely open or partially open.

The first end cap 130 is provided with a first through hole 131, and the second end cap 140 is provided with a second through hole 141. The first and second end caps 130 and 140 are provided on the body 110 at intervals in the preset direction, and the polish rod 20 can pass through the first and second penetration holes 131 and 141.

For example, the polish rod 20 may extend in the up-down direction, the first end cap 130 and the second end cap 140 may be provided on the body 110 at intervals in the up-down direction, the first end cap 130 may be provided on the upper end portion 116 of the body 110, and the second end cap 140 may be provided on the lower end portion 117 of the body 110. A first end cap 130 may be used to cover an upper end of the cavity 118 and a second end cap 140 may be used to cover a lower end of the cavity 118. Optionally, one of the first end cap 130 and the second end cap 140 is integrally formed with the body 110.

As shown in fig. 1 and 3, the first end cap 130 may be threaded onto the body 110. Alternatively, the first end cap 130 may include a first annular portion 132 and a second annular portion 133, and an end of the first annular portion 132 is connected to an outer edge of the second annular portion 133. The first annular portion 132 is threadedly fitted on the outer circumferential surface of the body 110, and the first annular portion 132 can be moved in the predetermined direction by rotating the first annular portion 132. The second annular portion 133 may be configured to cover an upper end of the cavity 118, and the second annular portion 133 may be provided with the first aperture 131.

The body 110 is provided with a support portion (not shown) on which the second end cap 140 is disposed. For example, the first annular portion 132 may be disposed vertically, the second annular portion 133 may be disposed horizontally, the second end cap 140 may be disposed horizontally, and the support portion may be disposed on the peripheral wall surface of the cavity 118.

The body 110, the first end cap 130 and the second end cap 140 define a containing cavity 111 therebetween for containing the sealing filler, and a filling port 113 is provided on a peripheral wall surface 112 of the containing cavity 111. The lid member 120 is movably disposed between the open position in which the lid member 120 is positioned to avoid the injection port 113 to open the injection port 113 and the closed position in which the lid member 120 covers the injection port 113 to close the injection port 113.

The opening direction of the injection port 113 may be tangential to the circumferential direction of the receiving chamber 111. The filled sealing filler can enter the accommodating cavity 111 along the direction tangential to the circumferential direction of the accommodating cavity 111, so that the resistance of filling the sealing filler can be greatly reduced, and the sealing filler can be filled into the accommodating cavity 111 more easily.

Alternatively, the cover member 120 may be movably disposed between the open position and the closed position along a circumferential direction of the body 110, and the circumferential direction of the body 110 may be coincident with a circumferential direction of the accommodating chamber 111. For example, the cover member 120 may be rotated or rotated about the central axis of the body 110 (the central axis of the accommodation chamber 111).

As shown in fig. 1, at least a portion of the closure member 120 can be disposed within the receiving cavity 111.

In one example of the present invention, the cover member 120 may include a main body 121 and a cover portion 122, and the cover portion 122 may be provided on the main body 121. The cover portion 122 extends downward from the main body 121, i.e., at least a portion of the cover portion 122 is located below the main body 121. At least a portion of the cover portion 122 can be disposed within the receiving cavity 111, e.g., at least a portion of the cover portion 122 extends into the cavity 118.

The cover portion 122 of the cover member 120 in the closed position can cover the injection port 113 so that the injection port 113 does not communicate with the accommodating chamber 111, i.e., the cover portion 122 of the cover member 120 in the closed position can close the injection port 113. The cover portion 122 of the cover member 120 located at the open position can avoid the injection port 113 so that the injection port 113 communicates with the accommodating chamber 111, i.e., the cover portion 122 of the cover member 120 located at the open position can open the injection port 113.

Optionally, the main body 121 may be ring-shaped, and the body 110 can be sleeved on the main body 121. The cover portion 122 can be adjacent to the peripheral wall surface 112 of the accommodating chamber 111, and the cover portion 122 can be spaced apart from the peripheral wall surface 112 of the accommodating chamber 111. Thereby, the frictional force between the covering portion 122 and the peripheral wall surface 112 of the accommodating chamber 111 can be reduced, so that the cover member 120 can be more easily moved between the open position and the closed position.

Further, the cover portion 122 can be in contact with the peripheral wall surface 112 of the accommodation chamber 111. This can improve the sealing property between the cover portion 122 and the peripheral wall surface 112 of the housing chamber 111, and can prevent the sealing filler in the housing chamber 111 from leaking between the peripheral wall surface 112 of the housing chamber 111 and the cover portion 122 of the cover member 120 located at the closed position.

In another example of the present invention, the at least one portion of the cover member 120 is provided with a relief through hole 123, and the relief through hole 123 of the cover member 120 located at the open position can be opposite to the injection port 113 so that the injection port 113 communicates with the accommodating chamber 111 through the relief through hole 123, i.e., the cover member 120 located at the open position can open the injection port 113. The escape through-hole 123 of the cover member 120 located at the closed position can avoid the injection port 113 so that the injection port 113 is not communicated with the accommodation chamber 111, i.e., the cover member 120 located at the closed position can close the injection port 113. In other words, the escape through-hole 123 of the cover member 120 located at the closed position does not face the injection port 113.

Alternatively, the escape through-hole 123 of the cover member 120 located at the open position can be opposed to the injection port 113 in the horizontal direction so that the injection port 113 communicates with the accommodation chamber 111 through the escape through-hole 123. The closure member 120 may be ring-shaped, and the body 110 may be capable of fitting over the closure member 120. This makes the construction of the sealing device 10 more rational.

The cover member 120 can be adjacent to the peripheral wall surface 112 of the accommodating chamber 111, and the cover member 120 can be spaced apart from the peripheral wall surface 112 of the accommodating chamber 111. Thereby, the frictional force between the lid member 120 and the peripheral wall surface 112 of the accommodation chamber 111 can be reduced, so that the lid member 120 can be more easily moved between the open position and the closed position.

Further, the cover 120 can be in contact with the peripheral wall surface 112 of the housing chamber 111. This can improve the sealing property between the lid member 120 and the peripheral wall surface 112 of the housing chamber 111, and can prevent the sealing filler in the housing chamber 111 from leaking between the peripheral wall surface 112 of the housing chamber 111 and the lid member 120 located at the closed position.

Alternatively, the opening direction of the escape through hole 123 of the cover member 120 in the open position can be tangential to the circumferential direction of the accommodating chamber 111. The filled sealing filler can enter the accommodating cavity 111 along the direction tangential to the circumferential direction of the accommodating cavity 111, so that the resistance of filling the sealing filler can be greatly reduced, and the sealing filler can be filled into the accommodating cavity 111 more easily.

Alternatively, the edge of the escape through-hole 123 of the cover member 120 in the open position can be flush with the edge of the injection port 113. In other words, the shape of the escape through hole 123 is the same as the shape of the injection port 113, and the size (dimension) of the escape through hole 123 is the same as the size (dimension) of the injection port 113.

As shown in fig. 1, in one example of the present invention, the sealing device 10 further includes a first elastic member 151, a first end of the first elastic member 151 can abut against the first end cap 130, and a second end of the first elastic member 151 can abut against the closure member 120. That is, the first elastic member 151 can be sandwiched between the first end cap 130 and the cover member 120. For example, an upper end portion of the first elastic member 151 can abut against the second annular portion 133 of the first end cap 130, and a lower end portion of the first elastic member 151 can abut against the closure member 120.

The first resilient member 151 can be in a compressed state so as to normally urge the closure member 120 in a direction away from the first end cap 130. For example, the first resilient member 151 can be in a compressed state to normally push the closure member 120 downward. Wherein the sealing compound in the receiving cavity 111 can be located between the cover member 120 and the second end cap 140. As the pumping system 1 is operated, the sealing filler in the receiving chamber 111 is gradually lost, and since the first elastic member 151 can apply an elastic force to the cover member 120, the cover member 120 can press the sealing filler in the receiving chamber 111, so that the sealability of the sealing device 10 can be maintained.

As shown in fig. 1, optionally, one of the peripheral wall surface 112 of the cover 120 and the peripheral wall surface 112 of the accommodating chamber 111 is provided with a first limiting groove 162 extending in the up-down direction, and the other of the peripheral wall surface 112 of the cover 120 and the accommodating chamber 111 is provided with a first limiting member 161 capable of being fitted in the first limiting groove 162. For example, the cover member 120 is provided with a first limiting groove 162, the peripheral wall surface 112 of the accommodating cavity 111 is provided with a first limiting member 161, and a part of the first limiting member 161 can be fitted in the first limiting groove 162. The first limiting member 161 can penetrate through the body 110 so that a part of the first limiting member 161 can be fitted in the first limiting groove 162, thereby reducing the difficulty in mounting the first limiting member 161.

The upper end of the first stopper groove 162 may be located below the lower end of the body 121, and the first stopper 161 may be located above at least a part of the injection port 113. When the upper end of the first limiting groove 162 abuts against the first limiting member 161, the first elastic member 151 can not push the cover member 120 downward. Since the first stopper 161 can be located above at least a portion of the injection port 113, the upper end portion of the first stopper groove 162 can be located above at least a portion of the injection port 113. Since the lower end of the body 121 can be located above the upper end of the first stopper groove 162, the lower end of the body 121 can be located above at least a portion of the injection port 113.

Therefore, by providing the first stopper 161 and the first stopper groove 162, it is possible to prevent the main body 121 of the cap member 120 from covering the injection port 113 due to an excessively large downward movement distance of the cap member 120 when the loss of the sealing packing in the accommodation chamber 111 is excessive. When the body 121 has an annular shape (or a shape close to an annular shape), it may be difficult to additionally inject the sealing filler into the accommodating chamber 111.

As shown in fig. 2, one of the cover member 120 and the peripheral wall surface 112 of the accommodating chamber 111 is provided with a second limit groove 164 extending in the circumferential direction of the accommodating chamber 111, and the other of the cover member 120 and the peripheral wall surface 112 of the accommodating chamber 111 is provided with a second limit member 163 capable of fitting in the second limit groove 164. For example, the cover member 120 is provided with a second limiting groove 164, the peripheral wall surface 112 of the accommodating cavity 111 is provided with a second limiting member 163, and a part of the second limiting member 163 can be fitted in the second limiting groove 164. The second limiting member 163 may pass through the body 110 so that a portion of the second limiting member 163 can be fitted in the second limiting groove 164, thereby reducing the difficulty of mounting the second limiting member 163.

Wherein, the second limit groove 164 has a first end portion 1641 and a second end portion 1642 opposite in the circumferential direction of the receiving cavity 111. When the cover 120 is located at the open position, the second limiting member 163 can abut against the first end portion 1641 of the second limiting groove 164; when the cover 120 is located at the closed position, the second limiting member 163 can abut against the second end portion 1642 of the second limiting groove 164. The open position and the closed position can thus be determined more easily and more precisely, so that the filling of the receiving space 111 with sealing compound can be carried out more easily and more easily, in order to make the sealing device 10 easier to handle.

Alternatively, the first limiting member 161 and the second limiting member 163 may be the same limiting member, and the first limiting groove 162 and the second limiting groove 164 may be the same limiting groove. That is, the first limiting member 161 and the second limiting member 163 may be the same component, and the first limiting groove 162 and the second limiting groove 164 may be the same groove. The structure of the sealing device 10 can thereby be made simpler.

In another example of the present invention, the sealing device 10 further includes a first elastic member 151, a first end of the first elastic member 151 can abut against the second end cap 140, and a second end of the first elastic member 151 can abut against the body 110. That is, the first elastic member 151 can be clamped between the second end cap 140 and the body 110. For example, an upper end portion of the first elastic member 151 can abut against the second end cap 140, and a lower end portion of the first elastic member 151 can abut against the body 110.

Wherein the first elastic member 151 can be in a compressed state so as to normally push the second end cap 140 in a direction adjacent to the first end cap 130. For example, the first elastic member 151 can be in a compressed state so as to normally push the second end cap 140 upward. Wherein the sealing compound in the receiving cavity 111 can be located between the cover member 120 and the second end cap 140. As the pumping system 1 operates, the sealing packing in the receiving cavity 111 is gradually lost, and since the first elastic member 151 can apply an elastic force to the second end cap 140, the second end cap 140 can press the sealing packing in the receiving cavity 111, so that the sealing performance of the sealing device 10 can be maintained.

As shown in fig. 2, the sealing device 10 further includes a feeding pipe 152 connected to the injection port 113 at a first end of the feeding pipe 152, and a sealing cap 153 detachably provided to a second end of the feeding pipe 152. The "the first end of the feed tube 152 is connected to the injection port 113" includes, but is not limited to: a. a first end of the feed pipe 152 is connected to the rim of the injection port 113; b. a first end of the feed tube 152 extends into the injection port 113; c. a first end of the feed pipe 152 is connected to the injection port 113 through another pipe.

By providing the feed tube 152, the packing sealer feeding device 20 and the sealing device 10 can be more easily connected together, so that the packing sealer can be more easily fed into the accommodating chamber 111. Optionally, a feed tube 152 is connected to body 110.

As shown in fig. 3-5, the cover member 120 can be provided on the outer circumferential surface 114 of the body 110

In one example of the present invention, the cover member 120 includes a main body 121 and a cover portion 122, and the cover portion 122 may be provided on the main body 121. The cover portion 122 extends downward from the main body 121, i.e., at least a portion of the cover portion 122 is located below the main body 121. The cover portion 122 of the lid member 120 in the closed position can cover the injection port 113 to close the injection port 113, and the cover portion 122 of the lid member 120 in the open position can avoid the injection port 113 to open the injection port 113. Although the filling port 113 can communicate with the housing chamber 111, since the covering portion 122 of the covering member 120 located at the closed position covers the filling port 113 from the outside of the filling port 113, the sealing filler cannot be filled into the housing chamber 111 through the filling port 113, and the sealing filler in the housing chamber 111 cannot leak out through the filling port 113.

Optionally, the main body 121 may be ring-shaped, and the main body 121 can be sleeved on the body 110. Alternatively, the cover portion 122 can be adjacent the outer peripheral surface 114 of the body 110, and the cover portion 122 can be spaced apart from the outer peripheral surface 114 of the body 110. The frictional force between the cover portion 122 and the outer peripheral surface 114 of the body 110 can thereby be reduced, so that the cover member 120 can be more easily moved between the open position and the closed position.

Further, the cover portion 122 can be in contact with the outer peripheral surface 114 of the body 110. This can improve the sealing property between the cover portion 122 and the outer peripheral surface 114 of the body 110, and thus can prevent the sealing filler in the accommodating chamber 111 from leaking between the outer peripheral surface 114 of the body 110 and the cover portion 122 of the lid member 120 located at the closed position.

In another example of the present invention, the cap member 120 is provided with an escape through hole 123, and the escape through hole 123 of the cap member 120 located at the open position can be opposed to the injection port 113 so as to open the injection port 113. The escape through-hole 123 of the cover member 120 located at the closed position can avoid the injection port 113 to close the injection port 113. In other words, the escape through-hole 123 of the cover member 120 located at the closed position does not face the injection port 113.

Alternatively, the escape through-hole 123 of the cover member 120 located at the open position can be opposed to the injection port 113 in the horizontal direction so as to open the injection port 113. The closure member 120 may be ring-shaped, and the body 110 may be capable of fitting over the closure member 120. The cover member 120 may be ring-shaped, and the cover member 120 can be disposed on the body 110. This makes the construction of the sealing device 10 more rational.

The closure 120 can be adjacent the outer peripheral surface 114 of the body 110, and the closure 120 can be spaced apart from the outer peripheral surface 114 of the body 110. Friction between the closure member 120 and the outer peripheral surface 114 of the body 110 can thereby be reduced, so that the closure member 120 can be more easily moved between the open position and the closed position.

Further, the cover 120 can be in contact with the outer circumferential surface 114 of the body 110. This improves the sealing performance between the lid member 120 and the outer peripheral surface 114 of the body 110, and prevents the sealing filler in the housing chamber 111 from leaking between the outer peripheral surface 114 of the body 110 and the lid member 120 located at the closed position.

As shown in fig. 4, the opening direction of the escape through hole 123 of the cover member 120 in the open position can be tangential to the circumferential direction of the accommodating chamber 111. This further reduces the resistance to filling of the sealing compound, so that the sealing compound can be filled more easily into the receiving space 111.

As shown in fig. 4 and 5, the sealing device 10 further includes a feeding pipe 152 and a sealing cover 153, a first end of the feeding pipe 152 is connected to the escape through hole 123, and the sealing cover 153 is detachably provided on a second end of the feeding pipe 152. By providing the feed tube 152, the packing sealer feeding device 20 and the sealing device 10 can be more easily connected together, so that the packing sealer can be more easily fed into the accommodating chamber 111. Optionally, a feed tube 152 is connected to the closure 120.

As shown in fig. 3, in one example of the present invention, the sealing apparatus 10 further includes a first elastic member 151 and a pressing member 154 for pressing the sealing packing received in the receiving chamber 111, and at least a portion of the pressing member 154 can be provided in the receiving chamber 111. The first end of the first elastic member 151 can abut against the first cap 130 and the second end of the first elastic member 151 can abut against the pressing member 154, that is, the first elastic member 151 can be sandwiched between the first cap 130 and the pressing member 154. For example, the upper end portion of the first elastic member 151 can abut against the second annular portion 133 of the first end cap 130, and the lower end portion of the first elastic member 151 can abut against the pressing member 154.

The first elastic member 151 can be in a compressed state so as to normally urge the pressing member 154 in a direction away from the first end cap 130. For example, the first resilient member 151 is in compression to normally urge the member 154 downwardly. Wherein the packing seal within the receiving cavity 111 may be located between the extrusion 154 and the second end cap 140. As the pumping system 1 is operated, the sealing compound in the receiving chamber 111 is gradually lost, and since the first elastic member 151 can apply an elastic force to the pressing member 154, the pressing member 154 can press the sealing compound in the receiving chamber 111, so that the sealing performance of the sealing device 10 can be maintained.

Wherein the first elastic member 151 can be in a compressed state so as to normally push the second end cap 140 in a direction adjacent to the first end cap 130. For example, the first elastic member 151 can be in a compressed state so as to normally push the second end cap 140 upward. The packing seal within the receiving cavity 111 may be located between the first end cap 130 and the second end cap 140. As the pumping system 1 operates, the sealing packing in the receiving cavity 111 is gradually lost, and since the first elastic member 151 can apply an elastic force to the second end cap 140, the second end cap 140 can press the sealing packing in the receiving cavity 111, so that the sealing performance of the sealing device 10 can be maintained.

As shown in fig. 4 and 5, one of the cover member 120 and the body 110 is provided with a first positioning groove 171 and a second positioning groove 172, and the first positioning groove 171 and the second positioning groove 172 are provided at intervals in the circumferential direction of the accommodating chamber 111, that is, the first positioning groove 171 and the second positioning groove 172 are provided at intervals in the circumferential direction of the body 110.

The other of the closure member 120 and the body 110 can have locating pins 173 disposed thereon. Wherein the positioning pin 173 can be fitted in the first positioning groove 171 when the cover member 120 is in the open position, and the positioning pin 173 can be fitted in the second positioning groove 172 when the cover member 120 is in the closed position. The open position and the closed position can thus be determined more easily and more precisely, so that the filling of the receiving space 111 with sealing compound can be carried out more easily and more easily, in order to make the sealing device 10 easier to handle.

For example, the body 110 may be provided with a first positioning groove 171 and a second positioning groove 172, and the cover 120 may be provided with a positioning pin 173. When the lid member 120 is in the open position, a part of the positioning pin 173 can be fitted in the first positioning groove 171, and when the lid member 120 is in the closed position, a part of the positioning pin 173 can be fitted in the second positioning groove 172. Alternatively, the detent pin 173 may pass through the cover member 120 so that a portion of the detent pin 173 can be fitted into the first detent groove 171 and the second detent groove 172, whereby the difficulty of mounting the detent pin 173 may be reduced.

As shown in fig. 4 and 5, one of the cover member 120 and the body 110 is provided with a first locking groove 174 and a second locking groove 175, and the first locking groove 174 and the second locking groove 175 are provided at intervals in the circumferential direction of the accommodation chamber 111, that is, the first locking groove 174 and the second locking groove 175 are provided at intervals in the circumferential direction of the body 110.

The other of the closure member 120 and the body 110 can have a locking member 180 disposed thereon. Wherein the locking member 180 is capable of fitting within the first locking groove 174 when the closure member 120 is in the open position and wherein the locking member 180 is capable of fitting within the second locking groove 175 when the closure member 120 is in the closed position. This makes it possible to more stably place the lid member 120 in the open position and the closed position, and thus to more stably construct the sealing device 10.

For example, the body 110 is provided with a first locking groove 174 and a second locking groove 175, and the cover 120 can be provided with a locking member 180. A portion of the locking member 180 can fit within the first locking groove 174 when the cover member 120 is in the open position, and a portion of the locking member 180 can fit within the second locking groove 175 when the cover member 120 is in the closed position.

As shown in fig. 4 and 5, the body 110 is provided with a first locking groove 174 and a second locking groove 175, and the cover 120 is provided with a through hole 125, wherein the through hole 125 penetrates the cover 120 along the radial direction of the accommodating cavity 111, that is, the through hole 125 penetrates the cover 120 along the radial direction of the body 110. For example, the radial direction of the receiving cavity 111 and the radial direction of the cover member 120 may be the same.

The locking member 180 may include a mounting portion 181, a locking portion 183, a pressing portion 184, and a second elastic member 185. The mounting portion 181 is provided on the outer side surface 124 of the covering member 120, and the mounting portion 181 is provided with a mounting groove 182, the mounting groove 182 penetrates the mounting portion 181 in the radial direction of the accommodating chamber 111, and the mounting groove 182 communicates with the through hole 125. For example, the mounting portion 181 may be tubular.

The lock 183 is movably provided in the through hole 125 in the radial direction of the accommodation chamber 111. Wherein when the cover member 120 is in the open position, a portion of the locking portion 183 can fit into the first locking groove 174, and the remaining portion of the locking portion 183 can be located in the through hole 125; when the cover 120 is in the closed position, a portion of the locking portion 183 can fit into the second locking groove 175, and the remaining portion of the locking portion 183 can be located in the through hole 125. The pressing portion 184 can be movably provided in the mounting groove 182 in the radial direction of the receiving chamber 111. The second elastic member 185 can be disposed in the mounting groove 182, a first end of the second elastic member 185 can abut against the pressing portion 184, and a second end of the second elastic member 185 can abut against the locking portion 183.

The operation of the locking member 180 according to the embodiment of the present invention will be described with reference to fig. 4 and 5. The locking part 183 is inserted into the through hole 125 through the mounting groove 182, and the second elastic member 185 is positioned in the mounting groove 182. When the cover 120 is located at the closed position (the open position), the pressing portion 184 may be moved in a direction adjacent to the body 110 in a radial direction of the receiving cavity 111, so that the pressing portion 184 presses the second elastic member 185, and the pressing portion 184 causes a portion of the locking portion 183 to be fitted in the second locking groove 175 (the first locking groove 174) by the second elastic member 185 and the remaining portion of the locking portion 183 is located in the through hole 125.

Further, the pressing portion 184 can cause the second elastic member 185 to apply an elastic force to the locking portion 183 by compressing the second elastic member 185 so that the locking portion 183 can be fixed in the second locking groove 175 (the first locking groove 174).

When it is desired to move the closure member 120 between the open position and the closed position, the pressing portion 184 can be moved in a direction away from the body 110 in a radial direction of the accommodating chamber 111. The second elastic member 185 can thereby be brought into a substantially natural state (i.e., an undeformed state) so as not to press the locking portion 183, so that the locking portion 183 can be disengaged or substantially disengaged from the second locking groove 175 (the first locking groove 174) so as to enable the cover member 120 to move between the open position and the closed position.

The second end of the second elastic member 185 is connected to the locking portion 183 to further ensure that the locking portion 183 is disengaged or substantially disengaged from the second locking groove 175 (the first locking groove 174) when it is necessary to move the closure member 120 between the open position and the closed position.

Alternatively, at least a portion of the pressing portion 184 can be engaged with the wall surface of the mounting groove 182 by a screw thread. Specifically, the wall surface of the mounting groove 182 may be provided with an internal thread, and at least a portion of the pressing portion 184 may be provided with an external thread to be engaged with the internal thread. For example, the pressing portion 184 may be a bolt.

The invention also provides a pumping system 1. The pumping system 1 according to an embodiment of the present invention includes a polish rod 20 and the sealing device 10 according to the above-described embodiment of the present invention, and the sealing device 10 is fitted over the polish rod 20.

Therefore, the pumping system 1 according to the embodiment of the present invention has the advantages of continuous operation, high oil production efficiency, low maintenance difficulty, etc.

The invention also provides a sealing filler. The sealing filler according to the embodiment of the invention comprises an elastic filler, a lubricating filler and a hard filler, wherein the elastic filler is elastic particles.

The elastomeric filler and the hard filler may be mixed with the lubricating filler by stirring. The packing is deformed under pressure within the receiving cavity 111 of the sealing device 10 to form a seal with the polish rod 20. The lubricating filler can continuously play a lubricating role, and the sealing effect of the sealing filler is ensured.

The sealing packing according to the embodiment of the present invention can reduce the frictional resistance of the sealing packing by providing the lubricating packing, so as to reduce the frictional force between the sealing packing and the polished rod 20. The sealing filler provided by the embodiment of the invention can greatly increase the wear resistance of the sealing filler by arranging the hard filler.

Wherein, when the containing cavity 111 of the sealing device 10 is filled with the sealing filler which does not include the hard filler, the sealing filler is replenished and filled approximately once every 20 days, and when the containing cavity 111 of the sealing device 10 is filled with the sealing filler according to the embodiment of the present invention, the sealing filler is replenished and filled approximately once every 35-45 days. Therefore, the sealing filler provided by the embodiment of the invention has good wear resistance.

The resilient particles may have an irregular shape. For the elastic particles with regular shapes, gaps exist among the elastic particles after being deformed by pressure, so that the sealing effect is poor. The elastic particles having irregular shapes can complement each other after being deformed by pressure (in a compressed state), so that there is no gap between the elastic particles after being deformed by pressure, so that the sealing filler has a good sealing effect.

For sealing filler comprising elastic particles having regular shape and the sealing filler comprising the elastic particles having irregular shapeThe packing material is filled in a sealing device (such as the sealing device 10 according to the embodiment of the invention) for sealing the polished rod at 20N^.The pressing test was performed using a pressing test stand under M pressing force (the manufacturer of the pressing test stand is junansmint technologies ltd., model number SUP-DYJ-35). For a sealing filler comprising elastic particles having a regular shape, puncture occurred when pressed to 12.5 MPa; for the sealing filler comprising the elastomeric particles having an irregular shape, no puncture occurred when pressed to 18.0 MPa.

Optionally, the elastomer particles have an equivalent particle size of 3 mm to 5 mm.

The elastomeric filler may be rubber particles. The rubber particles may be manufactured by the belt crusher 30 according to an embodiment of the present invention.

The lubricating filler may have a lubricity coefficient of 0.1 to 0.2. Alternatively, the lubricating coefficient of the lubricating filler may be 0.15. For example, the lubricating filler may be a butter.

The hard filler has a Rockwell hardness of 95 to 105. Optionally, the hard filler has a rockwell hardness of 97 to 103. For example, the hard filler may be nylon particles or graphite powder. Wherein, the equivalent grain diameter of the graphite powder can be 10 microns to 20 microns, and the equivalent grain diameter of the nylon particles is 3 millimeters to 5 millimeters.

The mass ratio of the elastic filler, the lubricating filler and the hard filler may be (3-7):1 (0.2-0.9). Alternatively, the mass ratio of the elastomeric filler, the lubricating filler and the hard filler may be (3.5-6.5):1 (0.36-0.74). Alternatively, the mass ratio of the elastomeric filler, the lubricating filler and the hard filler may be (4.3-5.8):1 (0.41-0.63). Alternatively, the mass ratio of the elastomeric filler, the lubricating filler and the hard filler may be (4.8-5.3):1 (0.47-0.54). Alternatively, the mass ratio of the elastomeric filler, the lubricating filler, and the hard filler may be 5.13:1: 0.533.

Example 1

The sealing filler comprises rubber particles, butter and nylon particles, wherein the mass ratio of the rubber particles to the butter to the nylon particles is 3:1: 0.2. The equivalent particle size of the rubber particles was 4 mm, and the equivalent particle size of the nylon particles was 5 mm.

The sealing filler of example 1 was subjected to a crushing test, and no puncture occurred when crushed to 18.0 MPa. The sealing packing of example 1 was filled in the accommodating chamber 111 of the sealing device 10, and the sealing packing was refilled every 35 days.

Example 2

The sealing filler comprises rubber particles, butter and nylon particles, wherein the mass ratio of the rubber particles to the butter to the nylon particles is 7:1: 0.74. The equivalent particle size of the rubber particles was 3 mm, and the equivalent particle size of the nylon particles was 3 mm.

The sealing filler of example 2 was subjected to a crushing test, and no puncture occurred when crushed to 18.0 MPa. The sealing packing of example 2 was filled in the accommodating chamber 111 of the sealing device 10, and the sealing packing was refilled every 35 days.

Example 3

The sealing filler comprises rubber particles, butter and nylon particles, wherein the mass ratio of the rubber particles to the butter to the nylon particles is 4.3:1: 0.9. The equivalent particle size of the rubber particles was 5 mm, and the equivalent particle size of the nylon particles was 4 mm.

The sealing filler of example 3 was subjected to a crushing test, and no puncture occurred when crushed to 18.0 MPa. The sealing packing of example 3 was filled in the accommodating chamber 111 of the sealing device 10, and the sealing packing was refilled every 36 days.

Example 4

The sealing filler comprises rubber particles, butter and graphite powder, wherein the mass ratio of the rubber particles to the butter to the graphite powder is 3.5:1: 0.63. The equivalent particle size of the rubber particles is 3 mm, and the equivalent particle size of the graphite powder is 20 μm.

The sealing filler of example 4 was subjected to a crushing test, and no puncture occurred when crushed to 18.0 MPa. The sealing packing of example 4 was filled into the accommodating chamber 111 of the sealing device 10, and the sealing packing was refilled every 39 days.

Example 5

The sealing filler comprises rubber particles, butter and graphite powder, wherein the mass ratio of the rubber particles to the butter to the graphite powder is 4.8:1: 0.54. The equivalent particle size of the rubber particles is 5 mm, and the equivalent particle size of the graphite powder is 15 microns.

The sealing filler of example 5 was subjected to a crushing test, and no puncture occurred when crushed to 18.0 MPa. The sealing packing of example 5 was filled in the accommodating chamber 111 of the sealing device 10, and the sealing packing was refilled every 40 days.

Example 6

The sealing filler comprises rubber particles, butter and graphite powder, wherein the mass ratio of the rubber particles to the butter to the graphite powder is 5.3:1: 0.47. The equivalent particle size of the rubber particles is 4 mm, and the equivalent particle size of the graphite powder is 10 μm.

The sealing filler of example 6 was subjected to a crushing test, and no puncture occurred when crushed to 18.0 MPa. The sealing packing of example 6 was filled into the accommodating chamber 111 of the sealing device 10, and the sealing packing was refilled every 38 days.

Example 7

The sealing filler comprises rubber particles, butter and graphite powder, wherein the mass ratio of the rubber particles to the butter to the graphite powder is 5.13:1: 0.533. The equivalent particle size of the rubber particles is 4 mm, and the equivalent particle size of the graphite powder is 15 μm.

The sealing filler of example 7 was subjected to a crushing test, and no puncture occurred when crushed to 18.0 MPa. The sealing packing of example 7 was filled in the accommodating chamber 111 of the sealing device 10, and the sealing packing was refilled every 45 days.

Comparative example

The sealing filler comprises rubber particles and butter, and the mass ratio of the rubber particles to the butter is 5.13:1: 0.533. The rubber particles are spherical and have a particle size of 4 mm.

The comparative example was subjected to a press test, and when the press was made to 12.0MPa, puncture occurred. The sealing packing of the comparative example was filled in the accommodating chamber 111 of the sealing device 10, and the sealing packing was refilled every 20 days.

The present invention further provides a sealing filler filling device 20, which can fill the sealing filler into the accommodating cavity 111 of the sealing device 10 by using the sealing filler filling device 20.

As shown in fig. 6-9, a sealant filling apparatus 20 according to an embodiment of the present invention includes a body 210, a pusher piston 220, and a driving member 230. The body 210 of the sealing filler filling device 20 has a containing cavity 211 for containing the sealing filler and a discharge hole 212 communicated with the containing cavity 211, so that the sealing filler in the containing cavity 211 can leave the body 210 from the discharge hole 212. The pushing piston 220 is movably disposed in the accommodating cavity 211, and the driving member 230 can be connected to the pushing piston 220 to drive the pushing piston 220 to move.

The phrase "the driving member 230 can be connected to the pushing piston 220" means that: when the sealing device 10 is filled with the sealing compound using the sealing compound filling device 20, the driving member 230 is connected to the pusher piston 220. That is, when the sealing device 10 is not filled with the sealing filler by the sealing filler filling device 20, the driving member 230 may be connected to the pushing piston 220 or may not be connected to the pushing piston 220.

When the sealing filler filling device 20 is used to fill the containing cavity 111 of the sealing device 10 with the sealing filler, the discharge port 212 of the sealing filler filling device 20 may be first communicated with the injection port 113 of the sealing device 10. Then, the driving element 230 drives the pushing piston 220 to move, so that the pushing piston 220 pushes the sealing filler in the accommodating cavity 211 of the sealing filler filling device 20 out of the accommodating cavity 211 from the discharge hole 212, and the sealing filler pushed out of the accommodating cavity 211 enters the accommodating cavity 111 of the sealing device 10 from the injection hole 113 of the sealing device 10.

By using the sealing filler filling device 20 according to the embodiment of the present invention, the sealing filler can be conveniently and quickly filled into the accommodating cavity 111 of the sealing device 10.

As shown in fig. 6, the drive member 230 may be a hydraulic cylinder.

As shown in fig. 7 and 8, driver 230 is a drive stem 230a, and drive stem 230a has a threaded section that is threadedly engaged with body 210. Thus, the driving rod 230a can be moved by rotating the driving rod 230a, and the driving rod 230a can drive the pushing piston 220 to move. By using the driving rod 230a to drive the pushing piston 220 to move, not only the structure of the sealing filler filling apparatus 20 can be simplified, but also the manufacturing cost of the sealing filler filling apparatus 20 can be reduced, and the weight of the sealing filler filling apparatus 20 can be reduced, so that the sealing filler filling apparatus 20 is more convenient to operate.

Body 210 of spout 212 may include a main body 213 and an end cap 214. The main body 213 has a receiving cavity 211, the receiving cavity 211 has a first end 2111 and a second end 2112 which are oppositely arranged, the first end 2111 of the receiving cavity 211 is opened to form the discharge port 212, and the second end 2112 of the receiving cavity 211 is opened. That is, the receiving cavity 211 may penetrate the body 213 in a preset direction.

An end cap 214 is provided on the main body 213, the end cap 214 covering the second end 2112 of the receiving cavity 211. The end cap 214 is provided with a threaded hole, the driving rod 230a passes through the threaded hole, and the threaded section is in threaded fit with the threaded hole. Since the pushing piston 220 is located in the receiving cavity 211, a portion of the driving rod 230a extends into the receiving cavity 211 through the threaded hole so as to be connected to the pushing piston 220. The remaining portion of the driving lever 230a, which is located outside the receiving cavity 211, may be operated to rotate the driving lever 230 a.

As shown in fig. 7 and 8, the sealing packing filling apparatus 20 further includes a rotary handle 240, and the rotary handle 240 is connected to a portion of the driving rod 230a located outside the accommodation chamber 211. The rotation handle 240 may be rotated to rotate the driving rod 230a, so that the driving rod 230a may be rotated more conveniently and more easily to facilitate the operation of the stuffing seal filling apparatus 20.

Alternatively, the extension direction of the rotation handle 240 may be perpendicular to the extension direction of the driving rod 230 a. The end of the rotating handle 240 may be connected to the driving rod 230a so as to constitute a substantially L-shaped structure. In addition, the rotary handle 240 may be connected to the driving rod 230a through the driving rod 230a or the middle of the rotary handle 240 to constitute a substantially T-shaped structure.

In order to make the technical solution of the present invention more easily understood, the following further describes the technical solution of the present invention taking the example that the driving rod 230a extends in the left-right direction (the left-right direction is shown by arrow C in fig. 8). The first end 2111 of the accommodation chamber 211 may be a left end, and the second end 2112 of the accommodation chamber 211 may be a right end, i.e., the first end 2111 and the second end 2112 of the accommodation chamber 211 may be disposed opposite in the left-right direction. Therefore, by rotating the driving rod 230a, the driving rod 230a can be moved in the left-right direction, and the driving rod 230a can drive the pushing piston 220 to move in the left-right direction.

The left end of the driving rod 230a may pass through the threaded hole of the end cap 214 so that the left end of the driving rod 230a may protrude into the receiving cavity 211. The left end of the driving rod 230a may be connected to the pushing piston 220. The right end 232a of the driving lever 230a may be positioned outside the receiving cavity 211, the rotation handle 240 may pass through the right end 232a of the driving lever 230a, and the lengths of portions of the rotation handle 240 positioned at both sides of the driving lever 230a may be substantially equal.

As shown in fig. 7 and 8, the main body 213 of the body 210 may include a receiving section 2131, a transition section 2132 and a discharging section 2133, the pushing piston 220 is movably disposed in the receiving section 2131, the receiving section 2131 can be disposed (filled) with a sealing filler, and the end cap 214 is disposed on the second end of the receiving section 2131. The second end of the transition section 2132 is connected to the first end of the receiver section 2131, and the cross-sectional area of the lumen of the transition section 2132 decreases in a direction away from the receiver section 2131. A second end of the discharge section 2133 is connected to a first end of the transition section 2132, and a discharge port 212 is provided at the first end of the discharge section 2133.

By reducing the cross-sectional area of the inner cavity of the transition section 2132 in a direction away from the receiver section 2131, the resistance to the sealing compound in the receiver cavity 211 as it is expelled from the receiver cavity 211 may be reduced so that the sealing compound may be more easily injected into the sealing device 10.

For example, the end cap 214 is provided on the right end portion of the accommodation section 2131. The right end of the transition section 2132 is connected with the left end of the accommodating section 2131, the right end of the discharging section 2133 is connected with the left end of the transition section 2132, and the discharging port 212 is arranged at the left end of the discharging section 2133. The cross-sectional area of the inner cavity of the transition section 2132 decreases in the right-to-left direction.

Alternatively, the receiver section 2131 may be cylindrical, the transition section 2132 may be frustoconical, and the discharge section 2133 may be cylindrical. Alternatively, the rotational axis of the transition section 2132 and the generatrix may form an angle of 30 degrees, i.e., the taper angle of the transition section 2132 may be 30 degrees.

As shown in fig. 8 and 9, the sealing packing filling apparatus 20 may further include a thrust bearing 261, the thrust bearing 261 may be capable of abutting against the push piston 220, and the first end 231a of the driving rod 230a may be capable of bearing on the thrust bearing 261. For example, the left end of the driving rod 230a can be supported on a thrust bearing 261, and the thrust bearing 261 can be located on the right side of the pusher piston 220.

In other words, the driving rod 230a may be connected to the pushing piston 220 through the thrust bearing 261. The term "the driving member 230 is connected to the pushing piston 220" should be interpreted broadly, and "the driving member 230 is connected to the pushing piston 220" includes, but is not limited to: a. the driving member 230 is directly connected to the pushing piston 220 or the driving member 230 is connected to the pushing piston 220 through other components; b. the driving member 230 is fixed with the pushing piston 220; c. the driving member 230 is detachably connected to the pushing piston 220 by a fastener or a connecting structure (e.g., a snap, a buckle); d. the driver 230 is in direct contact with the pusher piston 220 or the driver 230 is in contact with the pusher piston 220 through other components, such as a thrust bearing 261.

By arranging the thrust bearing 261 between the driving member 230 and the pushing piston 220, that is, the driving member 230 drives the pushing piston 220 to move through the thrust bearing 261, the rotational friction resistance of the driving member 230 can be effectively reduced, so that the sealing filler filling device 20 is more convenient to operate.

The phrase "the thrust bearing 261 can abut against the pusher piston 220, and the first end 231a of the driving rod 230a can be supported by the thrust bearing 261" means that: when the sealing packing is filled into the sealing device 10 by the sealing packing filling device 20, the thrust bearing 261 abuts against the pusher piston 220, and the first end 231a of the drive rod 230a is supported on the thrust bearing 261.

That is, when the sealing device 10 is not filled with the sealing filler by the sealing filler filling device 20, the thrust bearing 261 may or may not abut against the pusher piston 220, and the first end 231a of the driving rod 230a may or may not be supported by the thrust bearing 261.

As shown in fig. 8 and 9, the packing material filling apparatus 20 further includes a gland 262, the gland 262 can be disposed on the pushing piston 220, and a mounting cavity 263 can be defined between the gland 262 and the pushing piston 220. Here, the thrust bearing 261 can be provided in the mounting cavity 263, and the first end 231a of the drive rod 230a can pass through the gland 262 so as to be supported on the thrust bearing 261.

By providing the pressing cover 262, not only the thrust bearing 261 can be more conveniently and more stably installed, but also the pushing piston 220 can be more conveniently and more easily taken out of the accommodating chamber 211, so that the sealing packing can be added into the accommodating chamber 211 again.

For example, when the driving lever 230a rotates clockwise, the driving lever 230a moves leftward to push the push piston 220 leftward by the thrust bearing 261, and the push piston 220 pushes the sealing packing in the accommodating chamber 211 out of the left end portion (the discharge port 212) of the accommodating chamber 211. When the sealing packing in the receiving cavity 211 is insufficient, the driving rod 230a may be rotated in a counterclockwise direction or the second end cap 214 may be removed, and the driving rod 230a may be pulled rightward, so that the driving rod 230a moves rightward.

Since the thrust bearing 261 and the first end 231a of the driving rod 230a are both located in the installation cavity 263, the driving rod 230a can drive the pressing cover 262 to move rightward through the thrust bearing 261 or not through the thrust bearing 261 (i.e., the driving rod 230a directly cooperates with the pressing cover 262), and the pressing cover 262 drives the pushing piston 220 to move rightward until leaving the accommodating cavity 211.

The term "the pressing cover 262 can be provided on the pushing piston 220" means: when the sealing packing is charged into the sealing device 10 by the sealing packing charging device 20, the pressing cover 262 is provided on the pusher piston 220. That is, when the sealing device 10 is not filled with the sealing packing by the sealing packing filling device 20, the pressing cover 262 may be provided on the pushing piston 220 or may not be provided on the pushing piston 220.

The term "can" elsewhere in the present invention can also be interpreted in this way. That is, the term "capable" is intended to convey the structure of the sealing-filler filling apparatus 20 in use.

As shown in fig. 8 and 9, optionally, a groove 221 is formed on the pushing piston 220, a thrust bearing 261 can be disposed in the groove 221, a gland 262 can be detachably disposed on the pushing piston 220 by a fastener (e.g., a screw or a bolt), and a sealing ring 270 can be disposed between the pushing piston 220 and the wall surface of the accommodating cavity 211. This makes it possible to design the sealing-filler filling device 20 more appropriately.

As shown in fig. 8, the sealing filler filling apparatus 20 may further include an adapter 250, and the discharge port 212 may be provided on a first end (e.g., a left end) of the body 210. The first end of the body 210 may correspond to the first end 2111 of the receiving cavity 211.

In one example, the adapter 250 can be disposed over the first end of the body 210, and the outer surface of the adapter 250 is provided with a first protrusion 251 and a second protrusion 252, the first protrusion 251 and the second protrusion 252 being opposite to each other in the radial direction of the adapter 250.

Alternatively, as shown in fig. 8, crossover joint 250 may include a first casing section 253 and a second casing section 254. The first casing pipe section 253 can be sleeved on the discharging section 2133 through threads, and a first convex part 251 and a second convex part 252 are arranged on the outer surface of the first casing pipe section 253.

The end of the second casing section 254 is connected to the end of the first casing section 253, and the cross-sectional area of the lumen of the second casing section 254 decreases in a direction adjacent to the first casing section 253, and the second casing section 254 can fit over the transition section 2132.

For example, the left end of the second casing length 254 is connected to the right end of the first casing length 253, and the cross-sectional area of the lumen of the second casing length 254 decreases in the right-to-left direction. Because the first casing segment 253 can be fitted over the outfeed section 2133 and the second casing segment 254 can be fitted over the transition section 2132, the first casing segment 253 preferably has a shape that matches the shape of the outfeed section 2133 and the second casing segment 254 preferably has a shape that matches the shape of the transition section 2132.

In another example, the first end of the body 210 can be sleeved on a portion of the adapter 250, and the outer surface of the remaining portion of the adapter 250 is provided with a first protrusion 251 and a second protrusion 252, the first protrusion 251 and the second protrusion 252 being opposite to each other in the radial direction of the adapter 250. The remainder of crossover joint 250 refers to: the portion of the adapter 250 not covered by the first end of the body 210.

When the sealing filler is filled into the accommodating cavity 111 of the sealing device 10, the adapter 250 may be sleeved on the feeding pipe 152 or fitted in the filling port 113, and furthermore, the feeding pipe 152 may also be sleeved on the adapter 250. For example, the adapter 250 and the feed tube 152 may be threaded together, and the adapter 250 may be threaded into the injection port 113.

The feed pipe 152 may be provided thereon with a first slide groove, a second slide groove, a first mounting groove, and a second mounting groove, each of which may extend in the axial direction of the feed pipe 152, the first slide groove and the second slide groove being opposed in the radial direction of the feed pipe 152. Each of the first mounting groove and the second mounting groove may extend along a circumferential direction of the feed pipe 152, the first mounting groove may be connected with the first slide groove, and the second mounting groove may be connected with the second slide groove.

When filling the cavity 111 of the sealing device 10 with the sealing compound, the sealing compound filling device 20 may be moved along the axial direction of the feeding tube 152, so that the first protrusion 251 of the sealing compound filling device 20 slides in the first sliding slot, and the second protrusion 252 of the sealing compound filling device 20 slides in the second sliding slot.

By moving the sealing packing filling device 20 toward the direction adjacent to the body 110 of the sealing device 10, the first convex portion 251 and the second convex portion 252 can be slid to the connection between the first mounting groove and the first sliding groove and the connection between the second mounting groove and the second sliding groove. Subsequently, the packing sealer feeding device 20 is rotated along the circumferential direction of the feed pipe 152 so that the first convex portion 251 enters the first mounting groove and the second convex portion 252 enters the second mounting groove.

This completes the process of mounting the sealing-packing filling device 20 and the sealing device 10 together, so that the sealing-packing filling device 20 can be used to fill the receiving cavity 111 of the sealing device 10 with the sealing packing. Wherein the first convex portion 251 can abut against an end portion of the first mounting groove far from the first sliding groove, and the second convex portion 252 can abut against an end portion of the second mounting groove far from the second sliding groove, so that the sealing packing filling device 20 and the sealing device 10 can be more firmly mounted together.

By providing the first chute, the second chute, the first mounting groove and the second mounting groove on the feed pipe 152, the packing sealer filling device 20 and the sealing device 10 can be mounted together more conveniently and more easily. When the packing seal filling apparatus 20 and the sealing apparatus 10 are assembled together, the radial direction of the adapter 250 coincides with the radial direction of the feed pipe 152, the circumferential direction of the adapter 250 coincides with the circumferential direction of the feed pipe 152, and the axial direction of the adapter 250 coincides with the axial direction of the feed pipe 152.

Alternatively, an end of the first runner remote from the body 110 may be open, and an end of the second runner remote from the body 110 may be open. This makes it easier for the first projection 251 to enter the first slide groove and for the second projection 252 to enter the second slide groove.

Alternatively, an end of the first mounting groove may be connected to an end of the first sliding groove adjacent to the body 110, and an end of the second mounting groove may be connected to an end of the second sliding groove adjacent to the body 110. The feed pipe 152 can be made more rational. Optionally, the width of the first mounting groove decreases in a direction away from the first sliding groove, and the width of the second mounting groove decreases in a direction away from the second sliding groove. Thereby more securely mounting the sealing-packing-filling device 20 and the sealing device 10 together.

The present invention also provides a belt crusher 30. As shown in fig. 10 to 14, the belt crusher 30 according to the embodiment of the present invention includes a housing 310, a first crushing roller 320, a second crushing roller 330, a first gear 341, a second gear 342, and a motor 343.

Each of the first crushing roller 320 and the second crushing roller 330 is rotatably provided within the housing 310, the first crushing roller 320 having a plurality of first crushing teeth 323, and the second crushing roller 330 having a plurality of second crushing teeth 333. The first gear 341 is provided on the first crushing roller 320, the second gear 342 is provided on the second crushing roller 330, and the first gear 341 is meshed with the second gear 342.

The motor 343 is connected to one of the first and second crushing

rollers

320 and 330 so as to drive the one of the first and second crushing

rollers

320 and 320 to rotate. The belt crusher 30 will be further described below by taking as an example the motor 343 in connection with the first crushing roller 320. The motor 343 can rotate the first crushing roller 320, and the first gear 341 is disposed on the first crushing roller 320, so that the first crushing roller 320 can rotate the first gear 341. Since the first gear 341 is engaged with the second gear 342, the first gear 341 can drive the second gear 342 to rotate, and the second gear 342 can drive the second crushing roller 330 to rotate.

The first crushing roller 320 and the second crushing roller 330 are relatively movably disposed. The "first and second crushing

rollers

320 and 330 are relatively movably disposed" includes, but is not limited to: a. the first crushing roller 320 may be stationary and the second crushing roller 330 may be movably disposed; b. the second crushing roller 330 may be stationary, and the first crushing roller 320 may be movably disposed; c. both the first crushing roller 320 and the second crushing roller 330 are movably disposed.

Alternatively, the minimum distance between a portion of the plurality of first crushing teeth 323 and the second roller body 332 of the second crushing roller 330 is not equal to the minimum distance between another portion of the plurality of first crushing teeth 323 and the second roller body 332 of the second crushing roller 330 and/or the minimum distance between a portion of the plurality of second crushing teeth 333 and the first roller body 322 of the first crushing roller 320 is not equal to the minimum distance between another portion of the plurality of second crushing teeth 333 and the first roller body 322 of the first crushing roller 320.

Alternatively, the minimum distance of the at least one first crushing tooth 323 from the second roller body 332 is not equal to the minimum distance of the at least one second crushing tooth 333 from the first roller body 322.

The minimum distance between the first crushing tooth 323 and the second roller body 332 is: the smallest one of the distances between any one point of the first crushing tooth 323 and any one point of the second roller body 332; the minimum distance between the first crushing tooth 323 and the second roller body 332 is: the smallest one of the distances between any point of the second crushing teeth 333 and any point of the first roller body 322.

The belt can be crushed by the belt crusher 30 to obtain belt particles (rubber particles). By providing the first and second crushing

rollers

320, 330 relatively movably, the minimum distance between the first and second crushing

rollers

320, 330, i.e., the minimum distance between the first and second crushing

teeth

323, 333 and the first and second roller bodies 322, can be changed. Thereby, belt particles of different average particle sizes can be obtained by relatively moving the first crushing roller 320 and the second crushing roller 330.

Since the minimum distance between the one portion of the plurality of first crushing teeth 323 and the second roller body 332 is not equal to the minimum distance between the other portion of the plurality of first crushing teeth 323 and the second roller body 332, the average particle size of the belt particles crushed by the one portion of the plurality of first crushing teeth 323 is not equal to the average particle size of the belt particles crushed by the other portion of the plurality of first crushing teeth 323, so that belt particles of different average particle sizes are obtained.

Since the minimum distance between the one portion of the plurality of second crushing teeth 333 and the first roller body 322 is not equal to the minimum distance between the other portion of the plurality of second crushing teeth 333 and the first roller body 322, the average particle size of the belt particles crushed by the one portion of the plurality of second crushing teeth 333 is not equal to the average particle size of the belt particles crushed by the other portion of the plurality of second crushing teeth 333, so that belt particles of different average particle sizes are obtained.

Since the smallest distance between the at least one first crushing tooth 323 and the second roller body 332 is not equal to the smallest distance between the at least one second crushing tooth 333 and the first roller body 322, the average particle size of the belt particles crushed by the at least one first crushing tooth 323 is not equal to the average particle size of the belt particles crushed by the at least one second crushing tooth 333, so that belt particles of different average particle sizes are obtained.

By using the belt crusher 30 according to an embodiment of the present invention, belt particles of different average particle sizes may be obtained.

Optionally, the minimum distances of the plurality of first crushing teeth 323 and the second roller body 332 of the second crushing roller 330 are not equal to each other. In other words, the minimum distance between each first crushing tooth 323 and the second roller body 332 is not equal to the minimum distance between any of the remaining first crushing teeth 323 and the second roller body 332. The difference in the average particle size of the belt particles can thereby be further increased.

The minimum distances of the plurality of second crushing teeth 333 and the first roller body 322 of the first crushing roller 320 are not equal to each other. In other words, the minimum distance between each second crushing tooth 333 and the first roller body 322 is not equal to the minimum distance between any of the remaining second crushing teeth 333 and the first roller body 322. The difference in the average particle size of the belt particles can thereby be further increased.

As shown in fig. 10 to 14, the belt crusher 30 may include a frame 370, a housing 310, a first crushing roller 320, a second crushing roller 330, a first gear 341, a second gear 342, and a motor 343, and the housing 310 and the motor 343 may be provided on the frame 370. The belt crusher 30 may be used to crush belts (e.g., waste belts) to obtain rubber particles (elastomer particles) used to manufacture a seal filler according to an embodiment of the present invention.

As shown in fig. 10, the first crushing roller 320 includes a first rotating shaft 321, a first roller body 322, and a plurality of first crushing teeth 323, the first rotating shaft 321 being rotatably provided in the casing 310, the first roller body 322 being fitted over the first rotating shaft 321, and the plurality of first crushing teeth 323 being provided on the first roller body 322. The first roller body 322 may be provided on the first rotating shaft 321 in a known manner, and the first crushing teeth 323 may be provided on the first roller body 322 in a known manner.

The second crushing roller 330 includes a second rotating shaft 331, a second roller body 332, and a plurality of second crushing teeth 333, the second rotating shaft 331 is rotatably provided in the casing 310, the second roller body 332 is fitted over the second rotating shaft 331, and the plurality of second crushing teeth 333 are provided on the second roller body 332. The second roller body 332 may be provided on the second rotating shaft 331 in a known manner, and the second crushing teeth 333 may be provided on the second roller body 332 in a known manner.

The motor 343 is connected to one of the first rotating shaft 321 and the second rotating shaft 331, the first gear 341 is sleeved on the first rotating shaft 321, and the second gear 342 is sleeved on the second rotating shaft 331. Alternatively, the motor 343 may be connected to the one of the first and second

rotating shafts

321 and 331 through a coupling.

The housing 310 may further include a first scraper 381 and a second scraper 382, the first scraper 381 may cooperate with the first crushing roller 320 to scrape off belt particles remaining on the first crushing roller 320, and the second scraper 382 may cooperate with the second crushing roller 330 to scrape off belt particles remaining on the second crushing roller 330. Specifically, the first scraper 381 may cooperate with the first roller 322 to scrape off belt particles remaining on the first roller 322, and the second scraper 382 may cooperate with the second roller 332 to scrape off belt particles remaining on the second roller 332.

As shown in fig. 10 to 13, the case 310 includes a first front plate 311, a first left side plate 312, a first rear plate 313, and a first right side plate 314, which are connected in this order. Specifically, the left side portion of the first front plate 311 is connected to the front end portion of the first left side plate 312, the right side portion of the first front plate 311 is connected to the front end portion of the first right side plate 314, the left side portion of the first rear plate 313 is connected to the rear end portion of the first left side plate 312, and the right side portion of the first rear plate 313 is connected to the rear end portion of the first right side plate 314. In fig. 10, the left-right direction is shown by an arrow C, and the front-back direction is shown by an arrow D.

The first front plate 311, the first left side plate 312, the first rear plate 313, and the first right side plate 314 define therebetween a housing chamber 315, and the housing chamber 315 is open at upper and lower ends thereof, the up-down direction being indicated by an arrow E in fig. 11. The first crushing roller 320 and the second crushing roller 330 are located within the accommodating chamber 315, and each of the first crushing roller 320 and the second crushing roller 330 is rotatably provided on the first left side plate 312 and the first right side plate 314. Specifically, a left end portion of each of the first crushing roller 320 and the second crushing roller 330 is rotatably provided on the first left side plate 312, and a right end portion of each of the first crushing roller 320 and the second crushing roller 330 is rotatably provided on the first right side plate 314.

As shown in fig. 12, the belt crusher 30 may further include an outlet bin 350, and the outlet bin 350 includes a second front plate 351, a second left side plate 352, a second rear plate (not shown), and a second right side plate 353, which are connected in sequence. Specifically, the left side portion of the second front plate 351 is connected to the front end portion of the second left side plate 352, the right side portion of the second front plate 351 is connected to the front end portion of the second right side plate 353, the left side portion of the second rear plate is connected to the rear end portion of the second left side plate 352, and the right side portion of the second rear plate is connected to the rear end portion of the second right side plate 353.

A discharging cavity 354 is defined among the second front plate 351, the second left side plate 352, the second rear plate and the second right side plate 353, and the upper end and the lower end of the discharging cavity 354 are both open. The upper end of the second front plate 351 is connected to the lower end of the first front plate 311, the upper end of the second left side plate 352 is connected to the lower end of the first left side plate 312, the upper end of the second rear plate is connected to the lower end of the first rear plate 313, the upper end of the second right side plate 353 is connected to the lower end of the first right side plate 314, and the discharge chamber 354 is communicated with the accommodating chamber 315. By arranging the discharging bin 350 below the box body 310 (containing cavity 315), the belt particles obtained by crushing can be collected more conveniently.

As shown in fig. 12, the discharging chamber 354 includes a transition section 355 and a first contraction section 356, the transition section 355 is communicated with the accommodating chamber 315, the first contraction section 356 is located below the transition section 355, and the area of the horizontal section (cross section) of the first contraction section 356 is reduced from top to bottom. Thereby more conveniently collecting the broken belt particles.

Alternatively, as shown in fig. 10-12, each of the first front panel 311, the first left side panel 312, the first rear panel 313, and the first right side panel 314 is vertically disposed, and a portion of each of the second front panel 351, the second left side panel 352, the second rear panel 353, and the second right side panel 353, which is opposite to the transition section 355, is vertically disposed. A portion of each of the second front plate 351, the second left side plate 352, the second rear plate 353 and the second right side plate 353, which is opposite to the first necked portion 356, is obliquely disposed such that an area of a horizontal cross section of the first necked portion 356 is reduced from top to bottom.

As shown in fig. 13 and 14, the belt crusher 30 may further include a feed bin 360, the feed bin 360 being located above the bin 310, the feed bin 360 being adjacent to the bin 310. The feeding chamber 360 has a feeding chamber 361, the feeding chamber 361 communicates with the accommodating chamber 315 of the housing 310, and the area of the horizontal section (cross section) of the feeding chamber 361 is first reduced and then increased from top to bottom.

The phrase "the feeding chamber 361 is communicated with the receiving chamber 315 of the housing 310" should be interpreted broadly, and the feeding chamber 361 is considered to be communicated with the receiving chamber 315 as long as the belt in the feeding chamber 361 can enter the receiving chamber 315.

When the belt to be crushed by the belt crusher 30 has a large length, the belt can be restrained by the feeding chamber 361 by making the area of the horizontal section of the feeding chamber 361 decrease from top to bottom, so as to prevent the belt from swinging back and forth or greatly reduce the amplitude of the belt swinging back and forth. Further, by increasing the area of the horizontal cross section of the feeding chamber 361 from the top to the bottom, it is possible to uniformly insert the plurality of belts between the first crushing roller 320 and the second crushing roller 330.

As shown in fig. 13 and 14, the lower end of the feeding bin 360 is connected to the upper end of the box 310, and the feeding chamber 361 includes a second contraction section 3611 and an expansion section 3612. The expanding section 3612 is communicated with the accommodating cavity 315, and the second contracting section 3611 is positioned above the expanding section 3612. The area of the horizontal cross section of the second contraction section 3611 decreases from top to bottom, and the area of the horizontal cross section of the expansion section 3612 increases from top to bottom. The structure of the feed bin 360 and the belt crusher 30 can thus be made more rational.

The feeding bin 360 comprises a third front plate 362, a third left side plate 363, a third rear plate 364, a third right side plate 365, a fourth front plate 366, a fourth left side plate 367, a fourth rear plate 368 and a fourth right side plate 369 which are connected in sequence. Third front panel 362, third left side panel 363, third back panel 364, and third right side panel 365 define a second converging section 3611 therebetween, and fourth front panel 366, fourth left side panel 367, fourth back panel 368, and fourth right side panel 369 define an expanding section 3612 therebetween.

An upper end of the fourth front plate 366 is connected to a lower end of the third front plate 362, an upper end of the fourth left side plate 367 is connected to a lower end of the third left side plate 363, an upper end of the fourth rear plate 368 is connected to a lower end of the third rear plate 364, and an upper end of the fourth right side plate 369 is connected to a lower end of the third right side plate 365. The upper end of the first front plate 311 is connected to the lower end of the fourth front plate 366, the upper end of the first left side plate 312 is connected to the lower end of the fourth left side plate 367, the upper end of the first rear plate 313 is connected to the lower end of the fourth rear plate 368, and the upper end of the first right side plate 314 is connected to the lower end of the fourth right side plate 369. The structure of the feed bin 360 and the belt crusher 30 can thus be made more rational.

The feeding bin 360 further comprises a first arc-shaped portion, a second arc-shaped portion, a third arc-shaped portion and a fourth arc-shaped portion which are connected in sequence. The upper end portion of the first arc portion is connected to the lower end portion of the third front plate 362, and the lower end portion of the first arc portion is connected to the upper end portion of the fourth front plate 366. The upper end portion of the second arc-shaped portion is connected to the lower end portion of the third left side plate 363, and the lower end portion of the second arc-shaped portion is connected to the upper end portion of the fourth left side plate 367. The upper end portion of the third arc portion is connected to the lower end portion of the third rear plate 364, and the lower end portion of the third arc portion is connected to the upper end portion of the fourth rear plate 368. The upper end portion of the fourth arc portion is connected to the lower end portion of the third right side plate 365, and the lower end portion of the fourth arc portion is connected to the upper end portion of the fourth right side plate 369. The structure of the feed bin 360 and the belt crusher 30 can thus be made more rational.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A sealing device (10), comprising:

a body (110);

the sealing packing box comprises a first end cover (130) and a second end cover (140), wherein the first end cover (130) and the second end cover (140) can be arranged on a body (110) at intervals along a preset direction, a containing cavity (111) for containing sealing packing can be defined among the body (110), the first end cover (130) and the second end cover (140), a filling opening (113) is formed in the peripheral wall surface (112) of the containing cavity (111), a first through hole (131) is formed in the first end cover (130), and a second through hole (141) is formed in the second end cover (140); and

a closure member (120), the closure member (120) being movably arranged between an open position and a closed position, the closure member (120) being located in the open position and being capable of avoiding the filling opening (113) for opening the filling opening (113), the closure member (120) being located in the closed position and being capable of covering the filling opening (113) for closing the filling opening (113).

2. The sealing device (10) according to claim 1, wherein the cover member (120) is movably arranged along a circumference of the body (110) between the open position and the closed position, optionally wherein an opening direction of the injection opening (113) is tangential to a circumference of the receiving cavity (111).

3. Sealing device (10) according to claim 2, characterized in that at least a part of the cover member (120) is able to be provided inside the accommodation chamber (111),

optionally, the cover member (120) comprises a main body (121) and a cover portion (122) disposed on the main body (121), the cover portion (122) extends downward from the main body (121), at least a portion of the cover portion (122) can be disposed in the accommodating cavity (111), wherein the cover portion (122) of the cover member (120) in the closed position can cover the injection opening (113) so that the injection opening (113) is not communicated with the accommodating cavity (111), the cover portion (122) of the cover member (120) in the open position can avoid the injection opening (113) so that the injection opening (113) is communicated with the accommodating cavity (111), optionally, the main body (121) is ring-shaped, the body (110) can be sleeved on the main body (121), optionally, the cover portion (122) can be adjacent to the peripheral wall surface (112) of the accommodating cavity (111), the cover portion (122) being capable of being spaced apart from the peripheral wall surface (112) of the accommodation chamber (111), optionally the cover portion (122) being capable of being in contact with the peripheral wall surface (112) of the accommodation chamber (111),

optionally, an avoiding through hole (123) is provided on the at least one portion of the cover member (120), the avoiding through hole (123) of the cover member (120) located at the open position can be opposite to the injection port (113) so that the injection port (113) is communicated with the accommodating cavity (111) through the avoiding through hole (123), the avoiding through hole (123) of the cover member (120) located at the closed position can avoid the injection port (113) so that the injection port (113) is not communicated with the accommodating cavity (111), optionally, the avoiding through hole (123) of the cover member (120) located at the open position can be opposite to the injection port (113) in a horizontal direction, optionally, the cover member (120) is annular, and the body (110) can be sleeved on the cover member (120), optionally, the cover piece (120) can be adjacent to the peripheral wall surface (112) of the accommodating cavity (111), the cover piece (120) can be spaced from the peripheral wall surface (112) of the accommodating cavity (111), optionally, the cover piece (120) can be in contact with the peripheral wall surface (112) of the accommodating cavity (111), optionally, the opening direction of the avoiding through hole (123) of the cover piece (120) in the open position can be tangent to the peripheral direction of the accommodating cavity (111), and optionally, the edge of the avoiding through hole (123) of the cover piece (120) in the open position can be flush with the edge of the injection port (113).

4. The sealing device (10) according to claim 3,

the sealing device (10) further comprises a first elastic member (151), a first end of the first elastic member (151) can abut against the first end cap (130), a second end of the first elastic member (151) can abut against the cover member (120), wherein the first elastic member (151) can be in a compressed state so as to normally push the cover member (120) away from the first end cap (130), optionally, the first elastic member (151) can be in a compressed state so as to normally push the cover member (120) downwards,

optionally, one of the sealing cover member (120) and the peripheral wall surface (112) of the accommodating cavity (111) is provided with a first limiting groove (162) extending in the up-down direction, the other of the sealing cover member (120) and the peripheral wall surface (112) of the accommodating cavity (111) is provided with a first limiting member (161) capable of being matched in the first limiting groove (162), the upper end of the first limiting groove (162) can be located below the lower end of the main body (121), and the first limiting member (161) can be located above at least a part of the injection port (113),

optionally, one of the cover member (120) and the peripheral wall surface (112) of the accommodating cavity (111) is provided with a second limit groove (164) extending along the circumferential direction of the accommodating cavity (111), and the other of the cover member (120) and the peripheral wall surface (112) of the accommodating cavity (111) is provided with a second limit member (163) capable of being fitted in the second limit groove (164), wherein the second limit groove (164) has a first end portion (1641) and a second end portion (1642) opposite to each other in the circumferential direction of the accommodating cavity (111), the second limit member (163) is capable of abutting against the first end portion (1641) of the second limit groove (164) when the cover member (120) is located at the open position, and the second limit member (163) is capable of abutting against the second end portion (1642) of the second limit groove (164) when the cover member (120) is located at the closed position, optionally, the first limiting member (161) and the second limiting member (163) are the same limiting member, the first limiting groove (162) and the second limiting groove (164) are the same limiting groove,

alternatively, the sealing device (10) further comprises a first elastic member (151), a first end of the first elastic member (151) can abut against the second end cap (140), a second end of the first elastic member (151) can abut against the body (110), wherein the first elastic member (151) can be in a compressed state so as to normally push the second end cap (140) in a direction adjacent to the first end cap (130), and optionally, the first elastic member (151) can be in a compressed state so as to normally push the second end cap (140) upwards.

5. The sealing device (10) of claim 3, further comprising:

a feeding pipe (152), wherein a first end of the feeding pipe (152) is connected with the injection port (113); and

a sealing cap (153), the sealing cap (153) being detachably provided on the second end of the feeding pipe (152),

optionally, a first sliding groove, a second sliding groove, a first mounting groove and a second mounting groove are arranged on the feeding pipe (152), each of the first sliding groove and the second sliding groove extends along the axial direction of the feeding pipe (152), the first sliding groove and the second sliding groove are opposite in the radial direction of the feeding pipe (152), each of the first mounting groove and the second mounting groove extends along the circumferential direction of the feeding pipe (152), the first mounting groove is connected with the first sliding groove, and the second mounting groove is connected with the second sliding groove,

optionally, an end of the first sliding groove far away from the body (110) is open, an end of the second sliding groove far away from the body (110) is open, optionally, an end of the first mounting groove is connected with an end of the first sliding groove near the body (110), an end of the second mounting groove is connected with an end of the second sliding groove near the body (110), optionally, a width of the first mounting groove decreases in a direction far away from the first sliding groove, and a width of the second mounting groove decreases in a direction far away from the second sliding groove.

6. The sealing device (10) of claim 2, wherein the closure member (120) is positionable on an outer peripheral surface (114) of the body (110),

optionally, the cover member (120) comprises a main body (121) and a cover portion (122) provided on the main body (121), the cover portion (122) extending downward from the main body (121), wherein the cover portion (122) of the cover member (120) in the closed position can cover the injection port (113) to close the injection port (113), the cover portion (122) of the cover member (120) in the open position can avoid the injection port (113) to open the injection port (113), optionally, the main body (121) is ring-shaped, the main body (121) can be sleeved on the main body (110), optionally, the cover portion (122) can be adjacent to the outer circumferential surface (114) of the main body (110), and the cover portion (122) can be spaced apart from the outer circumferential surface (114) of the main body (110), optionally, the cover portion (122) is contactable with the outer peripheral surface (114) of the body (110),

optionally, an avoiding through hole (123) is provided on the cover member (120), the avoiding through hole (123) of the cover member (120) located at the open position can be opposite to the injection port (113) so as to open the injection port (113), the avoiding through hole (123) of the cover member (120) located at the closed position can avoid the injection port (113) so as to close the injection port (113), optionally, the avoiding through hole (123) of the cover member (120) located at the open position can be opposite to the injection port (113) in the horizontal direction, optionally, the cover member (120) is ring-shaped, the cover member (120) can be sleeved on the body (110), optionally, the cover member (120) can be adjacent to the outer circumferential surface (114) of the body (110), the cover member (120) can be spaced apart from the outer circumferential surface (114) of the body (110), optionally, the sealing cover part (120) can be contacted with the outer peripheral surface (114) of the body (110), optionally, the opening direction of the avoiding through hole (123) of the sealing cover part (120) in the opening position can be tangent to the circumferential direction of the containing cavity (111), optionally, the edge of the avoiding through hole (123) of the sealing cover part (120) in the opening position can be flush with the edge of the injection opening (113),

optionally, the sealing device (10) further comprises:

a feeding pipe (152), wherein a first end of the feeding pipe (152) is connected with the avoiding through hole (123); and

7. The sealing device (10) according to claim 6,

the sealing device (10) further comprises:

a pressing member (154) for pressing the sealing packing accommodated in the accommodating chamber (111), at least a portion of the pressing member (154) being capable of being disposed in the accommodating chamber (111); and

a first resilient member (151), a first end of the first resilient member (151) being capable of abutting against the first end cap (130), a second end of the first resilient member (151) being capable of abutting against the pressing member (154), wherein the first resilient member (151) is capable of being in a compressed state so as to normally urge the pressing member (154) in a direction away from the first end cap (130), optionally the first resilient member (151) is capable of being in a compressed state so as to normally urge the pressing member (154) downward,

8. The sealing device (10) according to claim 6,

a first positioning groove (171) and a second positioning groove (172) are provided on one of the cover member (120) and the body (110), the first positioning groove (171) and the second positioning groove (172) are provided at intervals in the circumferential direction of the accommodation chamber (111), and a positioning pin (173) can be provided on the other of the cover member (120) and the body (110), wherein the positioning pin (173) can be fitted in the first positioning groove (171) when the cover member (120) is located at the open position, and the positioning pin (173) can be fitted in the second positioning groove (172) when the cover member (120) is located at the closed position,

optionally, one of the cover member (120) and the body (110) is provided with a first locking groove (174) and a second locking groove (175), the first locking groove (174) and the second locking groove (175) being provided at a spacing in a circumferential direction of the accommodation chamber (111), and the other of the cover member (120) and the body (110) can be provided with a locking member (180), wherein the locking member (180) can be fitted in the first locking groove (174) when the cover member (120) is in the open position, and the locking member (180) can be fitted in the second locking groove (175) when the cover member (120) is in the closed position,

optionally, a first locking groove (174) and a second locking groove (175) are formed in the body (110), a through hole (125) is formed in the cover member (120), the through hole (125) penetrates through the cover member (120) along a radial direction of the accommodating cavity (111), and the locking member (180) includes:

the mounting part (181) is arranged on the outer side surface (124) of the sealing cover part (120), a mounting groove (182) is arranged on the mounting part (181), the mounting groove (182) penetrates through the mounting part (181) along the radial direction of the accommodating cavity (111), and the mounting groove (182) is communicated with the through hole (125);

a locking portion (183), the locking portion (183) being provided movably in a radial direction of the accommodation chamber (111) in the through hole (125), wherein a part of the locking portion (183) is fittable in the first locking groove (174) and a remaining part of the locking portion (183) is fittable in the through hole (125) when the cover member (120) is in the open position, and a part of the locking portion (183) is fittable in the second locking groove (175) and a remaining part of the locking portion (183) is fittable in the through hole (125) when the cover member (120) is in the closed position;

the pressing part (184) can be movably arranged in the mounting groove (182) along the radial direction of the accommodating cavity (111), optionally, at least one part of the pressing part (184) can be matched with the wall surface of the mounting groove (182) through threads, optionally, the pressing part (184) is a bolt; and

a second elastic member (185), the second elastic member (185) being capable of being disposed within the mounting groove (182), a first end of the second elastic member (185) being capable of abutting against the pressing portion (184), and a second end of the second elastic member (185) being capable of abutting against the locking portion (183).

9. The sealing device (10) according to any one of claims 1 to 8, wherein the first end cap (130) is threaded onto the body (110), the body (110) having a support portion thereon, and the second end cap (140) having a support portion thereon.

10. A pumping system (1), comprising:

a polish rod (20); and

a sealing device (10), said sealing device (10) being a sealing device (10) according to any one of claims 1-9, said sealing device (10) being fitted over said polish rod (20).