CN219317915U

CN219317915U - Pipe joint

Info

Publication number: CN219317915U
Application number: CN202320176476.5U
Authority: CN
Inventors: 杜长静
Original assignee: Kunshan Stanford Pneumatic Technology Co ltd
Current assignee: Kunshan Stanford Pneumatic Technology Co ltd
Priority date: 2023-02-10
Filing date: 2023-02-10
Publication date: 2023-07-07
Anticipated expiration: 2033-02-10

Abstract

The utility model provides a pipe joint, and relates to the field of pipe joints; comprising the following steps: the two ends of the joint assembly are respectively used for connecting the first pipeline and the second pipeline; a first seal disposed inside the joint assembly; the first sealing piece is provided with a plurality of sealing blocks used for being abutted against the outer wall of the first pipeline, the first sealing piece is also provided with a plurality of deformation grooves corresponding to the sealing blocks, and any sealing block can be compressed by extrusion to elastically deform the deformation grooves. When the joint component is connected with the first pipeline, the first pipeline compresses the sealing blocks to enable the sealing block compression deformation groove to elastically deform, the sealing blocks are in contact with the outer side wall of the first pipeline, and the plurality of sealing blocks enable the sealing performance of the first sealing piece between the first pipeline and the joint component to be enhanced. The deformation groove enables the radial deformation of the sealing block to be larger, and the first pipeline is prevented from being blocked by the sealing block when being inserted into the joint assembly.

Description

Pipe joint

Technical Field

The utility model relates to the field of pipe joints, in particular to a pipe joint.

Background

A pipe joint is a connection tool between pipes, and a quick (or quick-connect) joint is one type of pipe joint. When the quick connector is connected with two pipelines, the plug and play of the pipelines can be realized. However, the existing quick connector often has the problem of poor sealing performance between the pipeline and the quick connector.

Accordingly, there is a need to provide a pipe joint with better sealing properties.

Disclosure of Invention

The utility model aims to provide a pipe joint which solves the problem that the sealing property between a quick connector and a pipeline is poor after the quick connector is connected with the pipeline.

Embodiments of the present utility model are implemented as follows:

the embodiment of the application provides a pipe joint, includes: the two ends of the joint assembly are respectively used for connecting the first pipeline and the second pipeline; a first seal disposed inside the joint assembly; the first sealing piece is provided with a plurality of sealing blocks used for being abutted against the outer wall of the first pipeline, the first sealing piece is also provided with a plurality of deformation grooves corresponding to the sealing blocks, and any sealing block can be compressed by extrusion to elastically deform the deformation grooves.

In some embodiments of the utility model, the cross section of any of the sealing blocks is wedge-shaped, and the inner diameter of the sealing block gradually decreases from one end near the first pipeline to one end near the second pipeline.

In some embodiments of the present utility model, the first sealing member includes a plurality of sealing rings arranged in an axial direction, and each sealing ring is provided with a sealing block and a deformation groove.

In some embodiments of the utility model, the first seal is integrally formed.

In some embodiments of the utility model, the outer side wall of the first sealing member is provided with an arc-shaped protrusion.

In some embodiments of the utility model, the joint assembly includes: a locking assembly and a mounting assembly; the locking component is used for connecting the first pipeline; the mounting assembly is used for mounting the locking assembly and the first sealing piece; wherein, locking assembly includes: the outer diameter end of the clamping spring is connected with the mounting assembly, and the inner diameter end of the clamping spring is used for clamping the first pipeline and extends obliquely along the central axis of the mounting assembly; the pressing piece is connected with the mounting assembly in a sliding manner; the pressing piece is provided with a first shaping surface for pressing the clamp spring to deform at one end close to the clamp spring; the pressing piece is provided with a mounting hole for the first pipeline to pass through.

In some embodiments of the present utility model, the inner diameter end and the outer diameter end of the snap spring are provided with a plurality of grooves along the circumferential direction.

In some embodiments of the utility model, the mounting assembly includes: the connecting component is used for installing the clamp spring; the connecting component is provided with a clamping block matched with the clamping groove; the joint body, joint body one end is connected with coupling assembling, and the other end is used for connecting the second pipeline.

In some embodiments of the utility model, the above further comprises a second seal; the joint body is used for connecting the one end of second pipeline and is equipped with the screw hole and the mounting groove with screw hole intercommunication, and the second sealing member sets up in the mounting groove.

Compared with the prior art, the embodiment of the utility model has at least the following advantages or beneficial effects:

when the joint component is connected with a first pipeline, the first pipeline compresses the sealing blocks to enable the sealing block compression deformation groove to elastically deform, the sealing blocks are in contact with the outer side wall of the first pipeline, and the plurality of sealing blocks enable the sealing performance of the first sealing piece between the first pipeline and the joint component to be enhanced. The deformation groove enables the radial deformation of the sealing block to be larger, and the first pipeline is prevented from being blocked by the sealing block when being inserted into the joint assembly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a semi-sectional view of a pipe joint according to embodiment 1 of the present utility model;

FIG. 2 is a cross-sectional view of a first seal member according to embodiment 1 of the present utility model;

FIG. 3 is another cross-sectional view of the first seal member of embodiment 1 of the present utility model;

FIG. 4 is a further cross-sectional view of the first seal of embodiment 1 of the present utility model;

FIG. 5 is a schematic structural diagram of a clip spring according to embodiment 1 of the present utility model;

fig. 6 is a cross-sectional view of the first seal member of embodiment 2 of the present utility model.

Icon: 110. a locking assembly; 111. clamping springs; 1111. a groove; 112. a pressing member; 1121. a first shaping surface; 1122. a slip groove; 120. a mounting assembly; 121. a connection assembly; 1211. a clamping block; 1212. a bushing; 12121. a first step; 12122. a second step; 12123. a third step; 1213. a compression ring; 12131. a second shaping surface; 122. a joint body; 1221. a threaded hole; 1222. a mounting groove; 1223. a limiting block; 200. a first seal; 201. a sealing block; 202. a deformation groove; 203. a seal ring; 204. arc-shaped protruding blocks; 205. a clamping groove; 300. and a second seal.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the embodiments of the present utility model, it should be noted that, if the azimuth or positional relationship indicated by the terms "inner", "outer", etc. appears to be based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, it is merely for convenience in describing the present utility model and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the embodiments of the present utility model, "plurality" means at least 2.

In the description of the embodiments of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Example 1

Referring to fig. 1, the present embodiment provides a pipe joint, including: the two ends of the joint assembly are respectively used for connecting the first pipeline and the second pipeline; a first seal 200, the first seal 200 being disposed inside the joint assembly; the first sealing member 200 is provided with a plurality of sealing blocks 201 for abutting against the outer wall of the first pipeline, the first sealing member 200 is also provided with a plurality of deformation grooves 202 corresponding to the sealing blocks 201, and any sealing block 201 can be compressed by extrusion to elastically deform the deformation grooves 202.

In this embodiment, referring to fig. 1, when the joint assembly is connected to the first pipe, the end of the first pipe is first contacted with the inner side surface of the sealing block 201, and the sealing block 201 is elastically deformed along with the axial movement of the first pipe, so that the first pipe can reach the installation position of the joint assembly. The first sealing element 200 has elasticity, and when the first pipeline presses the sealing block 201, the first sealing element 200 has a tendency of recovering deformation, so that the plurality of sealing blocks 201 are in contact with the outer side wall of the first pipeline, and the tightness between the joint assembly and the first pipeline is good. The deformation groove 202 can enable the deformation amount of the sealing block 201 to be larger, and the phenomenon that the deformation amount of the sealing block 201 is smaller to prevent the first pipeline from moving is avoided. The first pipe refers to a pipe connected to the pipe joint and capable of contacting the first seal member 200, and the size and material of the first pipe are not limited.

Referring to fig. 2, the cross section of the sealing block 201 may be wedge-shaped, i.e., the inner side surface of the sealing block 201 is inclined toward the insertion direction of the first pipe; at this time, the opening direction of the deformation groove 202 may be the same as the insertion direction of the first pipe, and may also be directed toward the outer sidewall of the first seal 200. Referring to fig. 3, the cross section of the sealing block 201 may also be arc-shaped, in which case the opening direction of the deformation groove 202 may be toward the outer sidewall of the first seal member 200. Referring to fig. 4, the cross section of the sealing block 201 may also be spherical, in which case the opening of the deformation groove 202 may be directed toward the central axis of the first seal member 200.

In this embodiment, referring to fig. 1 and 2, the cross section of either sealing block 201 may be wedge-shaped, and the inner diameter of the sealing block 201 gradually decreases from one end near the first pipe toward one end near the second pipe. The wedge-shaped sealing block 201 is convenient to process, the sealing block 201 can be formed by cutting by a turning tool, and the sealing block 201 can be formed by injection molding with the first sealing piece 200.

In this embodiment, referring to fig. 2, the first seal member 200 may include a plurality of axially aligned seal rings 203, and each seal ring 203 is provided with a seal block 201 and a deformation groove 202. In detail, the number of the sealing rings 203 may be 2, the cross section of the sealing block 201 may be wedge-shaped, and the opening direction of the deformation groove 202 may be the same as the insertion direction of the first pipe.

In this embodiment, referring to fig. 2, the outer sidewall of the first seal member 200 is provided with an arcuate projection 204. In detail, the main function of the arc-shaped protrusion 204 is to increase the outer diameter of the first seal member 200, so that the first seal member 200 is firmly mounted with the joint assembly; a certain gap is formed between the joint component and the part of the first sealing element 200 except the arc-shaped protruding blocks 204, and when the first sealing element 200 is pressed and deformed, part of the side wall is contacted with the joint component, so that the deformation of the first sealing element 200 is prevented from being small and the movement of the first pipeline is prevented.

In this embodiment, referring to fig. 1, the joint assembly may include: a locking assembly 110 and a mounting assembly 120; the locking assembly 110 is used for connecting a first pipeline; the mounting assembly 120 is used to mount the locking assembly 110 and the first seal 200; wherein, the locking assembly 110 may include: the outer diameter end of the clamping spring 111 is connected with the mounting assembly 120, and the inner diameter end of the clamping spring 111 is used for clamping the first pipeline and extends obliquely along the central axis of the mounting assembly 120; a pressing piece 112, the pressing piece 112 being slidably connected to the mounting assembly 120; the pressing piece 112 is provided with a first shaping surface 1121 near one end of the clamp spring 111 for pressing the clamp spring 111 to deform; the pressing member 112 is provided with a mounting hole through which the first pipe passes.

In detail, referring to fig. 1 and 5, the main function of the clamp spring 111 is to lock the first pipe against axial movement. The inner diameter end of the clip spring 111 is inclined in the same direction as the insertion direction of the first pipe. The inner diameter end of the clamp spring 111 is extruded to deform when the first pipeline is inserted, and the clamp spring 111 has a deformation recovery trend, so that the inner side end of the clamp spring 111 clamps the first pipeline. The clip spring 111 may be made of SUS304 stainless steel, and the clip spring 111 has a certain elastic deformation capability. The inner diameter of the clamp spring 111 is smaller than the outer diameter of the first pipeline, so that the first pipeline can squeeze the clamp spring 111 to deform. When the first pipeline is installed, the first pipeline can be clamped by the clamp spring 111 only by inserting the first pipeline into a preset installation position in the joint assembly, and therefore connection between the first pipeline and the pipe joint is achieved, and convenience and rapidness are achieved. When the first pipeline and the pipe joint are detached, the pressing piece 112 is pushed to move towards the first sealing piece 200, the first molding surface 1121 extrudes the clamping spring 111 to increase the inner diameter of the clamping spring, and the inner diameter of the pressing piece 112 is larger than the outer diameter of the first pipeline, so that the first pipeline can be inserted and pulled out smoothly. The first molding surface 1121 of the pressing member 112 is inclined in the same direction as the inner diameter end of the clip spring 111.

In this embodiment, referring to fig. 5, the inner diameter end and the outer diameter end of the clamp spring 111 are each provided with a plurality of grooves 1111 in the circumferential direction. In detail, the grooves 1111 at the inner diameter end and the outer diameter end of the clamp spring 111 are all used for enabling the clamp spring 111 to bend and deform along the axial direction, and the grooves 1111 are uniformly arranged along the circumferential direction, so that the stress of each part is relatively even when the clamp spring 111 deforms, and the clamp spring 111 is prevented from being broken due to stress concentration at a certain part of the clamp spring 111. The cross section of the snap spring 111 may be a broken line shape, and the snap spring 111 is divided into an inner diameter end and an outer diameter end with the broken line as a boundary. The distance between the bending point of the jump ring 111 and the central axis of the jump ring 111 is greater than the inner diameter of the pressing piece 112, and the first shaping surface 1121 of the pressing piece 112 can contact with the inner diameter end of the jump ring 111.

In this embodiment, referring to fig. 1, the mounting assembly 120 may include: the connecting component 121, the connecting component 121 is used for installing the clamp spring 111; wherein, the inner side wall of the first sealing member 200 is provided with a clamping groove 205, and the connecting assembly 121 is provided with a clamping block 1211 matched with the clamping groove 205; the joint body 122, the joint body 122 one end is connected with coupling assembling 121, and the other end is used for connecting the second pipeline.

In detail, the joint body 122 may provide a mounting position for mounting the connection assembly 121, and the connection assembly 121 may not slide with respect to the joint body 122 when the connection assembly 121 is mounted on the joint body 122. The notch direction of the clamping groove 205 of the first sealing member 200 may be towards the central axis of the first sealing member 200, when the connecting assembly 121 is axially mounted on the joint body 122, the clamping block 1211 of the connecting assembly 121 presses the first sealing member 200 to deform, and at this time, the clamping block 1211 presses into the clamping groove 205, thereby completing the connection between the connecting assembly 121 and the first sealing member 200.

Further, referring to fig. 1, the connection assembly 121 may include a bushing 1212 and a compression ring 1213. The cross section of the bushing 1212 may be stepped, the number of steps may be 3, and the direction from the pressing member 112 to the first sealing member 200 is divided into a first step 12121, a second step 12122, and a third step 12123 in order. The bushing 1212 is sleeved inside the joint body 122, and a third step 12123 of the bushing 1212 may be located between the compression ring 1213 and the joint body 122, and the compression ring 1213 and the joint body 122 may limit movement of the third step 12123 toward the first seal 200. The outer side wall of the pressing piece 112 may be provided with a sliding groove 1122 that mates with the first step 12121, and the pressing piece 112 slides with respect to the first step 12121. The outer diameter end of the clamp spring 111 is located between the second step 12122 and the compression ring 1213 such that the clamp spring 111 does not move axially relative to the bushing 1212 or compression ring 1213.

Referring to fig. 1, a second molding surface 12131 for attaching the clamp spring 111 is provided on the inner side of the press ring 1213, and the second molding surface 12131 is obliquely provided, so that the clamp spring 111 can be attached to the second molding surface 12131 after the inner diameter end of the clamp spring is deformed. A latch 1211 for coupling the first sealing member 200 may be provided on the pressing ring 1213.

In this embodiment, referring to fig. 1, the pipe joint further includes a second seal 300; the joint body 122 is provided with a screw hole 1221 at one end for coupling to the second pipe and a mounting groove 1222 communicating with the screw hole 1221, and the second seal 300 is provided in the mounting groove 1222.

In detail, the joint body 122 is provided with a stopper 1223 for abutting against the first pipe, the installation groove 1222 is provided on the stopper 1223, and a notch of the installation groove 1222 is directed toward the screw hole 1221. The second conduit is provided with a threaded portion that mates with the threaded bore 1221 and is threadably connected to the fitting body 122. When the second pipe is connected to the threaded body, the end of the second pipe abuts against the second seal 300, and the second seal 300 is used to seal the gap between the second pipe and the joint body 122. The second seal 300 may be made of ethylene propylene diene monomer rubber and the second seal 300 may be an O-ring.

Example 2

Referring to fig. 6, the present embodiment provides a pipe joint, which has a structure substantially the same as that of embodiment 1, except that:

in the present embodiment, the first seal member 200 is integrally formed. In detail, the first sealing member 200 is integrally formed for easy manufacture and installation, and the integrally formed first sealing member 200 does not have the sub-members dislocate from each other in comparison with the form in which the plurality of sub-members are axially aligned adjacent to each other.

In summary, an embodiment of the present utility model provides a pipe joint, including: the two ends of the joint assembly are respectively used for connecting the first pipeline and the second pipeline; a first seal 200, the first seal 200 being disposed inside the joint assembly; the first sealing member 200 is provided with a plurality of sealing blocks 201 for abutting against the outer wall of the first pipeline, the first sealing member 200 is also provided with a plurality of deformation grooves 202 corresponding to the sealing blocks 201, and any sealing block 201 can be compressed by extrusion to elastically deform the deformation grooves 202.

When the joint assembly is connected with a first pipeline, the first pipeline compresses the sealing blocks 201 to enable the sealing blocks 201 to compress the deformation grooves 202 to elastically deform, the sealing blocks 201 are in contact with the outer side wall of the first pipeline, and the plurality of sealing blocks 201 enable the sealing performance of the first sealing piece 200 on the first pipeline and the joint assembly to be improved. The deformation groove 202 enables the radial deformation amount of the sealing block 201 to be larger, and the first pipeline is prevented from being blocked by the sealing block 201 when the first pipeline is inserted into the joint assembly.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A pipe joint, comprising:

the two ends of the joint assembly are respectively used for connecting the first pipeline and the second pipeline;

a first seal disposed inside the joint assembly; the first sealing piece is provided with a plurality of sealing blocks which are used for being abutted against the outer wall of the first pipeline, the first sealing piece is also provided with a plurality of deformation grooves which correspond to the sealing blocks, and any sealing piece can be compressed by extrusion so that the deformation grooves can be elastically deformed.

2. A pipe joint according to claim 1, wherein the cross section of any of the sealing blocks is wedge-shaped and the inner diameter of the sealing block decreases progressively from one end adjacent the first pipe to one end adjacent the second pipe.

3. A pipe joint according to claim 1, wherein the first seal member comprises a plurality of axially aligned seal rings, any one of which is provided with the seal block and the deformation groove.

4. The pipe coupling according to claim 1, wherein said first seal member is integrally formed.

5. A pipe joint according to any one of claims 1 to 4, wherein the outer side wall of the first seal is provided with arcuate projections.

6. The pipe joint according to claim 1, wherein the joint assembly comprises:

a locking assembly and a mounting assembly; the locking component is used for connecting a first pipeline; the mounting assembly is used for mounting the locking assembly and the first sealing piece; wherein,,

the locking assembly includes:

the outer diameter end of the clamping spring is connected with the mounting assembly, and the inner diameter end of the clamping spring is used for clamping the first pipeline and extends obliquely along the central axis of the mounting assembly;

the pressing piece is in sliding connection with the mounting assembly; the pressing piece is provided with a first shaping surface for pressing the clamp spring to deform at one end close to the clamp spring; the pressing piece is provided with a mounting hole for the first pipeline to pass through.

7. The pipe joint according to claim 6, wherein the inner diameter end and the outer diameter end of the clamp spring are provided with a plurality of grooves along the circumferential direction.

8. The pipe coupling according to claim 6, wherein said mounting assembly comprises:

the connecting component is used for installing the clamp spring; the connecting assembly is provided with a clamping block matched with the clamping groove;

the connector body, connector body one end with coupling assembling is connected, and the other end is used for connecting the second pipeline.

9. The pipe coupling according to claim 8, further comprising a second seal; the joint body is used for connecting the one end of second pipeline and is equipped with the screw hole and with the mounting groove of screw hole intercommunication, the second sealing member sets up in the mounting groove.