CN214367746U

CN214367746U - Dynamic sealing device

Info

Publication number: CN214367746U
Application number: CN202120207756.9U
Authority: CN
Inventors: 王鹏飞; 孙卫峰
Original assignee: Guoke Magnesium Technology Henan Co ltd
Current assignee: Guoke Magnesium Technology Henan Co ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-10-08
Anticipated expiration: 2031-01-25

Abstract

The utility model provides a dynamic sealing device, which relates to the technical field of sealing devices and solves the technical problem of poor sealing effect of the prior sealing device for sealing a movable tubular part in the prior art, and comprises an installation component and a sealing component, wherein the sealing component comprises a sealing element, an inner sealing ring and an outer sealing ring; the inner sealing ring is arranged in the mounting groove, and the mounting assembly is detachably arranged on the sealing element and can compress the inner sealing ring; an annular groove is formed in the outer side of the sealing element, and the outer sealing ring is arranged in the annular groove; the utility model discloses a mounting assembly can compress tightly the inner seal circle, is used for the lift of the direction tubulose body of going up and down through the slip cavity, mutually supports through inner seal circle and external seal circle, can realize inner seal and external seal simultaneously, and sealed effect is showing.

Description

Dynamic sealing device

Technical Field

The utility model relates to a sealing device technical field, concretely relates to dynamic seal device.

Background

In the mechanical field, reciprocating movable tubular components are very common, and for devices with higher sealing requirements, the sliding action of the reciprocating movable tubular components greatly affects the sealing performance of the whole device, and the existing sealing device is inconvenient to install, poor in sealing effect and poor in use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a dynamic sealing device to solve the technical problem of poor sealing effect of the prior sliding sealing device in the prior art; the utility model provides a plurality of technical effects that the preferred technical scheme can produce among the technical scheme (the sealing member includes barrel portion and flange portion, the barrel portion suit is on the fall way, flange portion and connecting pipe top flange looks adaptation, the installation of dynamic seal device is firm, the quantity of interior sealing washer sets up to a plurality ofly, be provided with the spacer ring between the adjacent interior sealing washer, a plurality of interior sealing washer mutually support, the interior sealing effect is showing, the installation component includes the sheath, the sheath inserts and establishes in the mounting groove, and can compress tightly the interior sealing washer, the sheath has spacing compressing effect, the installation component includes the compressing end cover, the compressing end cover can be dismantled with the sealing member and be connected, the sheath sets up between compressing end cover and sealing member, the compressing end cover is through compressing tightly the sheath, and the compressing end cover is provided with first mounting hole, the flange portion is provided with the second mounting hole, first threaded fastener passes first mounting hole and second mounting hole, the threaded connection mode is adopted, so that the connection is firm, and the disassembly and the assembly are convenient; a third mounting hole is formed in the flange part, a containing groove is formed in the compression end cover, a stud of the second threaded fastener penetrates through the third mounting hole and can be connected with the end cover at the top of the connecting pipe, the sealing element can be firmly mounted at the top of the connecting pipe, and a nut of the second threaded fastener is exactly positioned in the containing groove, so that the structure is compact and the like); see below for details.

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

the utility model provides a pair of dynamic seal device, including installation component and seal assembly, seal assembly includes sealing member, interior sealing washer and external seal circle, wherein: the mounting assembly is detachably arranged on the sealing element, the sealing element is provided with a sliding cavity along the axial direction, and the sliding cavity penetrates through the mounting assembly; an installation groove is formed in the end face of the sealing element, the sliding cavity penetrates through the installation groove, the inner sealing ring is arranged in the installation groove, and the installation assembly can tightly press the inner sealing ring; an annular groove is formed in the outer side of the sealing element, and the outer sealing ring is arranged in the annular groove.

Dynamic seal device is used for the magnesium crystallizer, with the fall way looks adaptation of lift crystallization dish subassembly, equally, the utility model discloses also be applicable to other tubulose elevating system.

Preferably, the seal member includes a cylindrical body portion and a flange portion provided at one end of the cylindrical body portion, wherein: the mounting groove is formed in one side, provided with the flange part, of the sealing element; the flange portion is arranged on the annular groove in the barrel portion in a surrounding mode on one side, adjacent to the barrel portion.

Preferably, the number of the inner sealing rings is at least two, and a spacer ring is arranged between every two adjacent inner sealing rings; and the two inner sealing rings positioned at the outermost sides are respectively abutted against the groove bottom of the mounting groove and the mounting component.

Preferably, the number of the inner sealing rings is three, the number of the spacer rings is two, and the inner sealing rings and the spacer rings are sequentially and alternately arranged.

Preferably, the mounting assembly comprises a sheath, wherein: the sliding cavity penetrates through the sheath; the sheath is inserted in the mounting groove and can compress the inner sealing ring.

Preferably, the mounting assembly comprises a compression end cap, wherein: the sliding cavity penetrates through the pressing end cover; the compression end cover is detachably connected with the sealing element; the protective sleeve is arranged between the sealing element and the compression end cover, and two ends of the protective sleeve respectively abut against the inner sealing ring and the compression end cover.

Preferably, the compressing end cover is circumferentially provided with a first mounting hole, a second mounting hole is formed in the flange portion at a position corresponding to the first mounting hole, and a first threaded fastener penetrates through the first mounting hole to be connected with the second mounting hole so as to connect the compressing end cover and the sealing element.

Preferably, the flange portion is circumferentially provided with a third mounting hole through which a stud of a second threaded fastener can pass.

Preferably, the third mounting holes and the second mounting holes are alternately arranged in sequence.

Preferably, a containing groove is formed in the circumferential direction of the outer wall of the pressing end cover, and the containing groove corresponds to the third mounting hole; the nut of the second threaded fastener is arranged in the accommodating groove.

The utility model provides a pair of dynamic seal device has following beneficial effect at least:

the dynamic sealing device comprises a mounting assembly and a sealing assembly, the sealing assembly comprises a sealing piece, an inner sealing ring and an outer sealing ring, the mounting assembly is detachably arranged on the sealing piece, the sealing piece is provided with a sliding cavity along the axial direction, the sliding cavity penetrates through the mounting assembly and is matched with the tubular lifting body, and when the dynamic sealing device is used, the tubular lifting body is arranged in the sliding cavity in a sliding mode.

The sealing device is characterized in that a mounting groove is formed in the end face of the sealing element, the sliding cavity penetrates through the mounting groove, the inner sealing element is arranged in the mounting groove, the mounting assembly compresses the inner sealing ring, and the inner sealing ring is used for sealing between the tubular lifting body and the sealing element.

The outer side of the sealing element is provided with an annular groove, the outer sealing ring is arranged in the annular groove, the sealing element is connected with the flange during installation, and the outer sealing ring is used for sealing between the flange and the sealing element.

The utility model discloses a mounting assembly can compress tightly the inner seal circle, is used for the lift of the direction tubulose body of going up and down through the slip cavity, mutually supports through inner seal circle and external seal circle, when being convenient for install, can realize inner seal and external seal simultaneously, and sealed effect is showing.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the installation structure of the present invention;

fig. 2 and 3 are schematic cross-sectional views of the present invention.

Reference numerals

1. Mounting the component; 11. pressing the end cover; 111. a containing groove; 12. a sheath; 2. a seal assembly; 21. a seal member; 211. a sliding cavity; 212. mounting grooves; 213. an annular groove; 214. a barrel portion; 215. a flange portion; 22. an inner seal ring; 23. an outer sealing ring; 24. a spacer ring; 3. a first threaded fastener; 31. a first resilient pad; 32. a first gasket; 4. a second threaded fastener; 41. a second resilient pad; 42. a second gasket; 5. a connecting pipe; 6. and (4) lifting the tube.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The utility model provides a dynamic seal device, as shown in fig. 1-3, dynamic seal device includes installation component 1 and seal assembly 2, and seal assembly 2 includes sealing member 21, interior sealing washer 22 and outer sealing washer 23, wherein: the mounting assembly 1 is detachably arranged on the sealing piece 21, the sealing piece 21 is provided with a sliding cavity 211 along the axial direction, the sliding cavity 211 is a cylindrical cavity, and the sliding cavity 211 penetrates through the mounting assembly 1; the end face of the sealing element 21 is provided with a mounting groove 212, the section of the mounting groove 212 is circular and is matched with the inner sealing ring 22, the mounting groove 212 and the sliding cavity 211 are coaxially arranged, the sliding cavity 211 penetrates through the mounting groove 212, the inner sealing ring 22 is arranged in the mounting groove 212, and the mounting assembly 1 can tightly press the inner sealing ring 22; the outer side of the seal 21 is provided with an annular groove 213, and the outer seal ring 23 is disposed in the annular groove 213.

Taking fig. 1 as an example, a connecting pipe 5 is arranged on a cavity end cover of the magnesium crystallizer, a flange is arranged at the top of the connecting pipe 5, a sealing element 21 is arranged on the flange at the top of the connecting pipe 5, an outer sealing ring 23 seals the flange and the sealing element 21, the lifting pipe 6 passes through the sliding cavity 211 and is in sliding fit with the sliding cavity 211, and an inner sealing ring 22 is annularly arranged on the lifting pipe 6 and seals the lifting pipe 6 and the sealing element 21.

The utility model discloses a sliding cavity 211 can realize with the sliding fit of tubulose body of going up and down, makes the installation of inner seal circle 22 firm through installation component 1, mutually supports through inner seal circle 22 and external seal circle 23, can realize inner seal and external seal simultaneously, and sealed effect is showing.

As an alternative embodiment, as shown in fig. 3, the sealing member 21 includes a cylindrical body 214 and a flange portion 215 disposed at one end of the cylindrical body 214, the cylindrical body 214 is cylindrical, the flange portion 215 is a sealing flange, and an installation groove 212 is opened at one side of the sealing member 21 where the flange portion 215 is disposed; the flange portion 215 is annularly provided on the cylindrical body portion 214 on a side adjacent to the cylindrical body portion 214, and is provided with an annular groove 213, and the annular groove 213 is fitted to the outer seal ring 23.

As an alternative embodiment, the number of the inner sealing rings 22 is at least two, and a spacer ring 24 is arranged between two adjacent inner sealing rings 22; the two inner sealing rings 22 positioned at the outermost sides are respectively abutted against the groove bottom of the mounting groove 212 and the mounting component 1; the arrangement of a plurality of inner sealing rings 22 has a remarkable inner sealing effect.

As an alternative embodiment, as shown in fig. 3, the number of the inner seal rings 22 is set to three, the number of the spacer rings 24 is set to two, and the inner seal rings 22 and the spacer rings 24 are alternately arranged in sequence.

As an alternative embodiment, as shown in fig. 2, the mounting assembly 1 comprises a sheath 12, a sliding cavity 211 extending through the sheath 12; the sheath 12 is inserted in the mounting groove 212 and abuts against the outermost inner sealing ring 22, and the sheath 12 can press the inner sealing ring in the mounting groove 212.

As an alternative embodiment, as shown in fig. 2, the mounting assembly 1 includes a compression end cap 11, and the sliding cavity 211 extends through the compression end cap 11; the compression end cover 11 is detachably connected with the sealing element 21; the sheath 12 is arranged between the sealing element 21 and the pressing end cover 11, one end of the sheath 12 is inserted into the mounting groove 212 and abuts against the inner sealing ring 22, and the other end of the sheath 12 abuts against the pressing end cover 11.

As an alternative embodiment, the pressing end cover 11 is uniformly provided with first mounting holes in the circumferential direction, a second mounting hole is provided on the flange portion 215 at a position corresponding to the first mounting hole, and the first threaded fastener 3 sequentially passes through the first elastic gasket 31, the first gasket 32 and the first mounting hole and then is connected to the second mounting hole, so that the pressing end cover 11 is firmly mounted on the sealing element 21, and the sheath 12 covers the inner sealing ring 22.

In an alternative embodiment, the flange portion 215 is uniformly provided with third mounting holes in the circumferential direction, and the studs of the second threaded fasteners 4 pass through the third mounting holes.

As an alternative embodiment, the third mounting holes and the second mounting holes are alternately arranged in sequence, and the third mounting holes correspond to the holes of the top flange of the connecting pipe 5.

The stud of the second threaded fastener 4 passes through the second elastic washer 41, the second washer 42 and the third mounting hole in sequence and then is connected with the flange at the top of the connecting pipe 5, so that the sealing member 21 is firmly mounted at the top of the connecting pipe 5.

As an optional implementation manner, a containing groove 111 is formed in the circumferential direction of the outer wall of the pressing end cover 11, the cross section of the containing groove 111 is in an isosceles trapezoid shape, and the containing groove 111 corresponds to the third mounting hole; the nut of the second threaded fastener 4 is placed in the receiving groove 111.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A dynamic sealing arrangement, comprising a mounting assembly (1) and a seal assembly (2), the seal assembly (2) comprising a seal (21), an inner seal ring (22) and an outer seal ring (23), wherein:

the mounting assembly (1) is detachably arranged on the sealing element (21), the sealing element (21) is provided with a sliding cavity (211) along the axial direction, and the sliding cavity (211) penetrates through the mounting assembly (1);

an installation groove (212) is formed in the end face of the sealing element (21), the sliding cavity (211) penetrates through the installation groove (212), the inner sealing ring (22) is arranged in the installation groove (212), and the installation assembly (1) can press the inner sealing ring (22);

an annular groove (213) is formed in the outer side of the sealing element (21), and the outer sealing ring (23) is arranged in the annular groove (213).

2. The dynamic sealing device according to claim 1, wherein the seal member (21) includes a cylindrical body portion (214) and a flange portion (215) provided at one end of the cylindrical body portion (214), wherein:

the mounting groove (212) is formed in one side, provided with the flange part (215), of the sealing element (21);

the flange part (215) is provided with the annular groove (213) in the cylindrical body part (214) in a manner of being surrounded on the side of the cylindrical body part (214).

3. The dynamic sealing device according to claim 2, characterized in that the number of the inner sealing rings (22) is at least two, and a spacer ring (24) is arranged between two adjacent inner sealing rings (22);

the two inner sealing rings (22) positioned on the outermost sides are respectively abutted against the groove bottom of the mounting groove (212) and the mounting component (1).

4. A dynamic sealing device according to claim 3, characterized in that the number of inner sealing rings (22) is three, the number of spacer rings (24) is two, and the inner sealing rings (22) and the spacer rings (24) are arranged alternately in sequence.

5. The dynamic sealing device according to claim 2, characterized in that the mounting assembly (1) comprises a jacket (12), wherein:

the sliding cavity (211) extends through the sheath (12);

the sheath (12) is inserted in the mounting groove (212) and can compress the inner sealing ring (22).

6. Dynamic sealing arrangement according to claim 5, characterized in that the mounting assembly (1) comprises a pressure end cap (11), wherein:

the sliding cavity (211) penetrates through the pressing end cover (11);

the compression end cover (11) is detachably connected with the sealing element (21);

the sheath (12) is arranged between the sealing element (21) and the pressing end cover (11), and two ends of the sheath are respectively abutted against the inner sealing ring (22) and the pressing end cover (11).

7. The dynamic sealing device according to claim 6, wherein the compression end cover (11) is circumferentially provided with a first mounting hole, the flange portion (215) is provided with a second mounting hole at a position corresponding to the first mounting hole, and a first threaded fastener (3) passes through the first mounting hole and is connected with the second mounting hole so as to connect the compression end cover (11) and the sealing element (21).

8. The dynamic sealing device according to claim 7, characterized in that the flange portion (215) is circumferentially provided with a third mounting hole through which a stud of a second threaded fastener (4) can pass.

9. The dynamic sealing device of claim 8, wherein the third mounting holes and the second mounting holes are alternately arranged in sequence.

10. The dynamic sealing device according to claim 8, wherein a containing groove (112) is circumferentially formed in the outer wall of the pressing end cover (11), and the containing groove (112) corresponds to the third mounting hole;

the screw cap of the second threaded fastener (4) is arranged in the accommodating groove (112).