CN211851751U

CN211851751U - Packing box capable of conveniently replacing polish rod

Info

Publication number: CN211851751U
Application number: CN202020509498.5U
Authority: CN
Inventors: 何岩; 毛谦明; 李斌; 党文涛; 毛伟东; 赵帅领
Original assignee: Sinopec Northwest Oil Field Co
Current assignee: Sinopec Northwest Oil Field Co
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2020-11-03
Anticipated expiration: 2030-04-09

Abstract

The utility model discloses a can conveniently change packing box of polished rod, press the cap and coil the packing in the packing box body including packing box body, screw thread cover establish the packing on the packing box body, be provided with the perforation on the bottom inner wall of packing box body, run through the polished rod in perforation, packing and the packing press the cap, the square groove has been seted up to one side of packing box body, and the square groove has been kept away from and has been seted up the rectangular channel on its open-ended one side inner wall, rectangular channel and perforation cross intercommunication. The utility model relates to a rationally, be convenient for take out the polished rod and change timely automatic carry out the shutoff to the perforation, effectively avoid a large amount of oil upwards spout to cause loss and pollution, and can increase the elasticity of tightening of adjustment compression spring to keeping off the box according to actual need, keep off the box to fenestrate shutoff effect and efficiency when improving the change polished rod, also can avoid appearing the phenomenon that elasticity fatigue can not stabilize the shutoff because of long-time use compression spring, be favorable to the use.

Description

Packing box capable of conveniently replacing polish rod

Technical Field

The utility model relates to a packing box technical field especially relates to a packing box of polished rod can conveniently be changed.

Background

In the normal working process of the oil extraction polished rod, factors such as material quality, corrosion, abrasion and shrinkage, cracks, stress alternation and fatigue need to be replaced regularly, when the polished rod is pulled out from the packing box for replacement, if the packing box cannot be plugged in time, the primary seal of the packing box can be disabled, oil and water in a well can be ejected out of the well mouth through the packing box without control under the assistance of pipeline back pressure and gas sudden rapid expansion, the loss is large, pollution to oil extraction equipment and surrounding environment is caused, and the workload of workers is increased.

The existing packing box is inconvenient to timely and automatically plug when the polished rod is pulled out for replacement, so that great inconvenience is brought when the polished rod is pulled out for replacement, and the packing box capable of conveniently replacing the polished rod is provided for solving the problems aiming at the phenomenon.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a packing box which can conveniently replace a polished rod.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a packing box capable of conveniently replacing a polished rod comprises a packing box body, a packing pressing cap and a packing, wherein the packing pressing cap is sleeved on the packing box body in a threaded manner, the packing is coiled in the packing box body, a perforation is arranged on the inner wall of the bottom of the packing box body, a polished rod penetrates through the perforation, the packing and the packing pressing cap, a square groove is formed in one side of the packing box body, a rectangular groove is formed in the inner wall of one side, away from the opening of the square groove, and is in cross communication with the perforation, a square box with the bottom and the right side both provided with openings is fixedly installed in the square groove, a blocking box with the right side provided with an opening is sleeved in the rectangular groove in a sliding manner, the right side of the blocking box extends into the square box, a fixed plate is fixedly connected to the top of the right side of the square box, a square pipe is fixedly connected to one side, one end of the, the screw rod is installed to square intraductal rotation, and the one end of screw rod extends to the square box outside and fixedly connected with knob, the fixed plate cover is established on the screw rod, thread bush is equipped with the montant on the screw rod, and the top and the bottom of montant respectively with the top inner wall and the bottom inner wall fixed connection of square ring, the montant is located two first rectangular holes, one side that the fixed plate was kept away from to the square ring keeps away from with the box and keeps away from the same compression spring who is in compression state between its open-ended one side inner wall, compression spring movable sleeve establishes on square pipe, one side that the fender box is close to the polished rod contacts with the outside activity knot of polished rod, the bottom one side fixed mounting that keeps off the box has the.

Preferably, the inner wall of one side of the rectangular groove, which is far away from the opening of the rectangular groove, is an arc-shaped inner wall, and the side, which is far away from the fixing plate, of the blocking box is an arc-shaped surface matched with the arc-shaped inner wall.

Preferably, the distance between the front and rear inner walls of the rectangular groove is larger than the diameter of the through hole.

Preferably, a second rectangular hole is formed in the inner wall of one side, far away from the fixed plate, of the square box, a sealing rubber ring is fixedly bonded to the inner wall of the second rectangular hole, and the inner side of the sealing rubber ring is in sliding connection with the outer side of the blocking box.

Preferably, two bearings are fixedly connected between the top inner wall and the bottom inner wall of the square tube, and the inner ring inner side of each bearing is in sliding connection with the outer side of the screw rod.

Preferably, one side of the vertical rod is provided with a threaded hole, and the threaded hole is in threaded connection with the screw rod.

Preferably, a round hole is formed in one side of the fixing plate, the screw rod is located in the round hole, and the side wall of the round hole is not in contact with the outer side of the screw rod.

Preferably, the front side inner wall and the rear side inner wall of the first rectangular hole are in sliding contact with the front side and the rear side of the vertical rod, respectively.

Compared with the prior art, the beneficial effects of the utility model are that:

by matching the packing box body, the packing, the through hole, the square groove, the rectangular groove, the square box, the retaining box, the fixing plate, the square pipe, the first rectangular hole, the square ring, the vertical rod, the compression spring, the screw rod and the knob with the pull ring, the left blocking resistance of the retaining box disappears when the polish rod is pulled out and replaced, the elastic force of the compression spring drives the retaining box to slide to the left in the rectangular groove and block the through hole from the middle crossrail, when the polish rod is installed, the pull ring is pulled to the right to drive the retaining box to slide to the right in the rectangular groove, the retaining box compresses the compression spring to the right, the polish rod can penetrate downwards and be inserted into the through hole, when the elastic force of the compression spring on the retaining box is increased according to actual conditions, the forward rotation knob drives the screw rod to rotate, the screw rod can drive the vertical rod to move to the left, the vertical rod drives the square ring to slide to the left, thereby strengthen compression spring to keeping off the tight elasticity of box, reach and to improve shutoff effect and efficiency when changing the polished rod, also can avoid the phenomenon that can not stabilize the shutoff because of elastic fatigue appears in the long-time compression spring that uses.

The utility model relates to a rationally, be convenient for take out the polished rod and change timely automatic carry out the shutoff to the perforation, effectively avoid a large amount of oil upwards spout to cause loss and pollution, and can increase the elasticity of tightening of adjustment compression spring to keeping off the box according to actual need, keep off the box to fenestrate shutoff effect and efficiency when improving the change polished rod, also can avoid appearing the phenomenon that elasticity fatigue can not stabilize the shutoff because of long-time use compression spring, be favorable to the use.

Drawings

Fig. 1 is a schematic cross-sectional view of a packing box with a polish rod capable of being replaced conveniently according to the present invention;

FIG. 2 is an enlarged view of part A of FIG. 1;

fig. 3 is the utility model provides a can conveniently change packing box's of polished rod side pipe, square ring and montant connecting piece stereogram.

In the figure: 1 packing box body, 2 packing, 3 perforation, 4 square grooves, 5 rectangular grooves, 6 square boxes, 7 keep off the box, 8 fixed plates, 9 square pipes, 10 first rectangular holes, 11 square rings, 12 montants, 13 compression spring, 14 screw rods, 15 knobs, 16 pull rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a packing box capable of conveniently replacing a polish rod comprises a packing box body 1, a packing press cap which is sleeved on the packing box body 1 by a screw thread, and a packing 2 which is coiled in the packing box body 1, wherein a perforation hole 3 is arranged on the inner wall of the bottom of the packing box body 1, a polish rod penetrates through the perforation hole 3, the packing 2 and the packing press cap, a square groove 4 is arranged on one side of the packing box body 1, a rectangular groove 5 is arranged on the inner wall of one side of the square groove 4 away from the opening of the square groove, the rectangular groove 5 is communicated with the perforation hole 3 in a cross way, a square box 6 with the bottom and the right side arranged in an opening way is fixedly arranged in the square groove 4, a baffle box 7 with the right side arranged in an opening way is sleeved in the rectangular groove 5 in a sliding way, the right side of the baffle box 7 extends into the square box 6, a fixing plate 8 is fixedly connected with the, the square pipe 9 is provided with first rectangular holes 10 on the top inner wall and the bottom inner wall, a square ring 11 is slidably sleeved on the square pipe 9, a screw rod 14 is rotatably installed in the square pipe 9, one end of the screw rod 14 extends out of the square box 6 and is fixedly connected with a knob 15, a fixing plate 8 is sleeved on the screw rod 14, a vertical rod 12 is threadedly sleeved on the screw rod 14, the top end and the bottom end of the vertical rod 12 are respectively and fixedly connected with the top inner wall and the bottom inner wall of the square ring 11, the vertical rod 12 is positioned in the two first rectangular holes 10, a compression spring 13 in a compression state is fixedly connected between one side of the square ring 11 far away from the fixing plate 8 and the inner wall of one side of the blocking box 7 far away from the opening of the blocking box, the compression spring 13 is movably sleeved on the square pipe 9, one side of the blocking box 7 close to the polish rod is in contact with an outer side movable knot of the, the utility model relates to a rationally, be convenient for take out the polished rod change in time automatic carry out the shutoff to perforation 3, effectively avoid a large amount of oil upwards spout to cause loss and pollution, and can increase adjustment compression spring 13 to keeping off the tight elasticity of box 7 according to actual need, keep off box 7 when improving the change polished rod and to perforation 3's shutoff effect and efficiency, also can avoid appearing the phenomenon that elasticity is tired can not stabilize the shutoff because of long-time use compression spring 13, be favorable to the use.

In the utility model, the inner wall of one side of the rectangular groove 5 far from the opening is set as an arc inner wall, one side of the baffle box 7 far from the fixed plate 8 is set as an arc surface matched with the arc inner wall, the distance between the front inner wall and the rear inner wall of the rectangular groove 5 is larger than the diameter of the perforation 3, a second rectangular hole is arranged on the inner wall of one side of the square box 6 far from the fixed plate 8, a sealing rubber ring is bonded and fixed on the inner wall of the second rectangular hole, the inner side of the sealing rubber ring is in sliding connection with the outer side of the baffle box 7, two bearings are fixedly connected between the top inner wall and the bottom inner wall of the square tube 9, the inner side of the inner ring of each bearing is in sliding connection with the outer side of the screw 14, one side of the vertical rod 12 is provided with a threaded hole, the threaded hole is in threaded connection with the screw 14, one side of the fixed, the front side inner wall and the rear side inner wall of first rectangular hole 10 respectively with the front side and the rear side sliding contact of montant 12, the utility model relates to a rationally, be convenient for in time automatic carry out the shutoff to perforation 3 when taking the polished rod out and change, effectively avoid a large amount of oil upwards spout to cause loss and pollution, and can increase adjustment compression spring 13 according to actual need to keep off box 7 the elasticity of stretching tightly, keep off box 7 to perforation 3's shutoff effect and efficiency when improving the change polished rod, also can avoid appearing the phenomenon that elasticity fatigue can not stabilize the shutoff because of long-time use compression spring 13, be favorable to using.

The working principle is as follows: when the polish rod is pulled out from the through hole 3 on the packing box body 1 for replacement, the shielding resistance on the left side of the blocking box 7 disappears after the polish rod is pulled out, at the moment, the elastic force of the compression spring 13 drives the blocking box 7 to slide leftwards in the rectangular groove 5 to be in contact with the inner wall of one side, away from the opening, of the rectangular groove 5, the blocking box 7 can rapidly shield the through hole 3 from the middle crossrail when moving rightwards, when the polish rod is installed, the pull ring 16 is pulled rightwards, the pull ring 16 drives the blocking box 7 to slide rightwards in the rectangular groove 5 through the fixed block, the blocking box 7 compresses the compression spring 13 rightwards, the polish rod can penetrate downwards and is inserted into the through hole 3 at the moment, the purpose that the polish rod can be automatically plugged when being pulled out for;

after long-time use, the elastic fatigue elasticity of the compression spring 13 becomes weak, or the elasticity of the compression spring 13 to the blocking box 7 needs to be increased according to actual conditions, at the moment, the knob 15 is rotated in the forward direction, the knob 15 drives the screw rod 14 to rotate, under the effect of a threaded hole formed in one side of the vertical rod 12, the screw rod 14 can drive the vertical rod 12 to move left, the vertical rod 12 drives the square ring 11 to slide left on the square pipe 9 and compress the compression spring 13, the compression degree of the compression spring 13 can be increased according to actual requirements, thereby the tightening elasticity of the compression spring 13 to the blocking box 7 is enhanced, the blocking effect and the blocking efficiency of the blocking box 7 to the through hole 3 when the polished rod is replaced can be improved, and the phenomenon that the blocking cannot be stabilized due to the elastic fatigue caused by long-time use.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A packing box capable of conveniently replacing a polished rod comprises a packing box body (1), a packing press cap arranged on the packing box body (1) in a threaded manner and a packing (2) coiled in the packing box body (1), wherein a through hole (3) is formed in the inner wall of the bottom of the packing box body (1), the polished rod penetrates through the through hole (3), the packing (2) and the packing press cap, and is characterized in that a square groove (4) is formed in one side of the packing box body (1), a rectangular groove (5) is formed in the inner wall of one side, away from an opening, of the square groove (4), the rectangular groove (5) is communicated with the through hole (3) in a crossed manner, a square box (6) with the bottom and the right side both being provided with the opening is fixedly arranged in the square groove (4), a blocking box (7) with the right side being provided with the opening is arranged in the rectangular groove (5) in a sliding sleeve manner, the right side of the blocking box (7) extends into the square, a square pipe (9) is fixedly connected to one side, close to the blocking box (7), of the fixed plate (8), one end of the square pipe (9) extends into the blocking box (7), first rectangular holes (10) are formed in the top inner wall and the bottom inner wall of the square pipe (9), a square ring (11) is sleeved on the square pipe (9) in a sliding mode, a screw rod (14) is installed in the square pipe (9) in a rotating mode, one end of the screw rod (14) extends out of the square box (6) and is fixedly connected with a knob (15), the fixed plate (8) is sleeved on the screw rod (14), a vertical rod (12) is sleeved on the screw rod (14) in a threaded mode, the top end and the bottom end of the vertical rod (12) are fixedly connected with the top inner wall and the bottom inner wall of the square ring (11) respectively, the vertical rod (12) is located in the two first rectangular holes (10), the same compression spring (13) in a compression state is fixedly connected between one side, far away from the, compression spring (13) activity cover is established on square pipe (9), keeps off one side that box (7) are close to the polished rod and contacts with the outside activity knot of polished rod, the bottom one side fixed mounting that keeps off box (7) has the fixed block that is located square box (6), the right side fixedly connected with pull ring (16) of fixed block.

2. The packing box capable of conveniently replacing the polish rod according to claim 1, wherein the inner wall of the rectangular groove (5) far away from the opening is an arc inner wall, and the side of the blocking box (7) far away from the fixing plate (8) is an arc surface matched with the arc inner wall.

3. The packing box capable of conveniently replacing a polish rod according to claim 1, wherein the distance between the front inner wall and the rear inner wall of the rectangular groove (5) is larger than the diameter of the through hole (3).

4. The packing box capable of conveniently replacing the polish rod according to claim 1, wherein a second rectangular hole is formed in the inner wall of the square box (6) far away from the fixing plate (8), a sealing rubber ring is fixedly bonded to the inner wall of the second rectangular hole, and the inner side of the sealing rubber ring is slidably connected with the outer side of the blocking box (7).

5. The packing box capable of conveniently replacing a polish rod according to claim 1, wherein two bearings are fixedly connected between the top inner wall and the bottom inner wall of the square tube (9), and the inner sides of the inner rings of the bearings are slidably connected with the outer sides of the screw rods (14).

6. The packing box capable of conveniently replacing a polish rod according to claim 1, wherein a threaded hole is formed in one side of the vertical rod (12), and the threaded hole is in threaded connection with the screw rod (14).

7. The packing box capable of conveniently replacing the polish rod according to claim 1, wherein a round hole is formed at one side of the fixing plate (8), the screw rod (14) is positioned in the round hole, and the side wall of the round hole is not contacted with the outer side of the screw rod (14).

8. The packing box capable of conveniently replacing a polish rod according to claim 1, wherein the front and rear inner walls of the first rectangular hole (10) are in sliding contact with the front and rear sides of the vertical rod (12), respectively.