CN217441087U

CN217441087U - PVC pipe joint

Info

Publication number: CN217441087U
Application number: CN202221552001.3U
Authority: CN
Inventors: 高云方; 王勇豪; 沈小宁
Original assignee: Zhejiang Xinjie New Material Technology Co ltd
Current assignee: Zhejiang Xinjie New Material Technology Co ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-09-16
Anticipated expiration: 2032-06-20

Abstract

The application relates to a PVC pipe joint, which comprises an outer pipe, an inner pipe and a clamping piece, wherein the outer periphery of the inner pipe is coaxially provided with an outer peripheral ring groove, and the inner periphery of the outer pipe is coaxially provided with an inner peripheral ring groove; one end of the inner pipe is coaxially and rotatably embedded into the outer pipe, and the inner circumferential ring groove is communicated with the outer circumferential ring groove; the clamping piece has elasticity, one end of the clamping piece is embedded into the inner circumferential ring groove, and the other end of the clamping piece is embedded into the outer circumferential ring groove; the outer pipe is for fixed connection to one pipe and the inner pipe is for threaded connection to another pipe, or the inner pipe is fixed connection to one pipe and the outer pipe is for threaded connection to another pipe. This application passes through joint spare restriction inner tube and outer tube and removes along the outer tube axial, can realize the connection between two pipelines through rotatory outer tube, and does not need rotatory fixed connection in the whole root pipeline of inner tube to people carry out the connection between the pipeline.

Description

PVC pipe joint

Technical Field

The application relates to the field of pipe joint connection, in particular to a PVC pipe joint.

Background

The pipe joint is a common connecting part in pipeline connection, and the end part of a pipeline is fixedly connected with the pipe joint. Currently, threads are provided in most pipe joints. By rotating the pipe joint and the pipe, the pipe joint of one pipe and the pipe joint of the other pipe are in threaded connection, so that the two pipes are communicated.

However, the whole pipeline is long and heavy, and is inconvenient to rotate, so that the pipelines are inconvenient to connect.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the connection between the pipelines, the application provides a PVC pipe joint.

The application provides a PVC coupling adopts following technical scheme:

a PVC pipe joint comprises an outer pipe, an inner pipe and a clamping piece, wherein an outer circumferential ring groove is coaxially arranged on the outer circumference of the inner pipe, and an inner circumferential ring groove is coaxially arranged on the inner circumference of the outer pipe; one end of the inner pipe is coaxially and rotatably embedded into the outer pipe, and the inner circumferential ring groove is communicated with the outer circumferential ring groove; the clamping piece is elastic, one end of the clamping piece is embedded into the inner circumferential ring groove, and the other end of the clamping piece is embedded into the outer circumferential ring groove;

the outer pipe is used for fixed connection in a pipeline, and the inner pipe is used for threaded connection another pipeline, or, the inner pipe fixed connection is in a pipeline, the outer pipe is used for threaded connection another pipeline.

Through adopting above-mentioned technical scheme, joint spare restriction inner tube and outer tube take place relative movement along the outer tube axial to realize being connected between inner tube and the outer tube. The inner circumferential ring groove and the outer circumferential ring groove are annular, so that the clamping piece can slide in the inner circumferential ring groove and the outer circumferential ring groove; when the inner pipe is far away from the outer pipe and is fixedly connected to one pipe, the outer pipe is connected to the other pipe by rotating, and the whole pipe fixedly connected to the inner pipe does not need to rotate. Thereby being convenient for people to connect the pipelines.

Preferably, the clamping piece is annular, and the clamping piece is provided with a notch; when two ends of the clamping piece along the circumferential direction of the clamping piece are abutted, the outer diameter of the clamping piece is smaller than the inner diameter of the outer pipe; when the outer periphery of the clamping piece abuts against the inner wall of the inner peripheral ring groove, the inner diameter of the clamping piece is smaller than the outer diameter of the inner pipe.

Through adopting above-mentioned technical scheme, during the installation, can make the mutual butt in both ends of joint spare earlier, joint spare can be embedded into to the outer tube this moment in, until joint spare embedding to interior circumference groove, the both ends of joint spare break away from the inner wall in order to make the interior circumference groove of periphery butt of joint spare each other. At this moment, because the internal diameter of joint spare is less than the external diameter of inner tube, joint spare can be embedded into to the periphery annular in, and then realizes that inner tube and outer tube are spacing along outer tube axial to realize the connection between two pipelines. Meanwhile, the clamping piece can rotate along the circumferential direction of the inner circumferential ring groove and the outer circumferential ring groove, so that the inner pipe and the outer pipe can rotate relatively to facilitate the mutual connection between the two pipelines.

Preferably, the internal circumference of outer tube is coaxial to be equipped with first groove of dodging, first dodge the trench in one side of interior circumference groove, first dodge the groove along keeping away from the outer tube is run through to the direction of interior circumference groove.

Through adopting above-mentioned technical scheme, during the installation joint spare, need extrude the joint spare from the outer tube entrance hard so that the mutual butt in both ends of joint spare, it is comparatively inconvenient. The first avoiding groove allows people to embed the clamping piece into the first avoiding groove, and when the clamping piece is close to the inner circumferential ring groove, the clamping piece is extruded, so that people can conveniently embed the clamping piece into the inner circumferential ring groove.

Preferably, the outer periphery of the inner tube is coaxially connected with a sealing ring, the sealing ring abuts against the inner tube, and the outer periphery of the sealing ring abuts against the inner periphery of the outer tube.

Through adopting above-mentioned technical scheme, seal the connection between inner tube and the outer tube, when rivers were crossed inner tube and outer tube, can avoid water resource loss, and then improve the utilization ratio of water resource, can effective water economy resource.

Preferably, a sealing groove is coaxially arranged on the periphery of the inner pipe, and the sealing ring is embedded in the sealing groove; the sealing ring is pressed against the inner wall of the sealing groove.

Through adopting above-mentioned technical scheme, the seal groove can carry out the axial spacing to the sealing washer along the axial cell wall of inner tube, avoids the sealing washer to receive water flow impact and breaks away from inner tube and outer tube, and then provides the seal stability between inner tube and the outer tube.

Preferably, the inner tube includes coaxial fixed connection's embedding pipe and connecting pipe, the embedding pipe is coaxial to be inlayed to the outer tube intraductally, the connecting pipe is located outside the outer tube, the seal groove is located the periphery of embedding pipe, just the seal groove is located one side of periphery annular orientation connecting pipe.

Through adopting above-mentioned technical scheme, during the installation sealing washer, earlier in the sealing washer embedding seal groove, the external diameter of sealing washer is greater than the internal diameter of outer tube, when embedding the embedding pipe slip embedding to the outer tube, the periphery of sealing washer can produce the friction with the inner periphery of outer tube. The sealing groove is located on one side, facing the connecting pipe, of the peripheral annular groove, so that friction and abrasion between the sealing ring and the outer pipe in the assembling process are reduced, and the sealing performance of the sealing ring is improved.

Preferably, the internal circumference of outer tube is coaxial to be equipped with the second and dodges the groove, the second dodge the trench be located interior circumference annular is close to one side of connecting pipe, the second dodges the groove along being close to the direction of connecting pipe runs through the outer tube.

Through adopting above-mentioned technical scheme, the external diameter of sealing washer is greater than the internal diameter of outer tube, and during the installation sealing washer, the sealing washer periphery can produce the friction with the outer tube is internal between. The second avoiding groove can reduce the friction distance between the sealing ring and the outer pipe, so that the abrasion of the sealing ring in the assembling process is reduced, and the sealing performance of the sealing ring is improved.

Preferably, a guide surface is arranged at a position, close to the sealing groove, of the second avoidance groove, and the distance from any point on the guide surface to the axis of the embedded pipe is reduced along with the point close to the sealing groove.

Through adopting above-mentioned technical scheme for the sealing washer is along the spigot surface embedding to the seal groove in, avoids the sealing washer and second to dodge the cell wall in groove and directly produce the collision and lead to the sealing washer impaired, thereby improves the sealing performance of sealing washer.

Preferably, the outer periphery of the inner tube is fixedly connected with a baffle ring, the outer diameter of the baffle ring is larger than the inner diameter of the outer tube, and the surface of the baffle ring facing the outer tube is used for abutting against the outer tube.

Through adopting above-mentioned technical scheme, when keeping off the ring butt in the terminal surface of outer tube, the concatenation of surface inner tube and outer tube is accomplished, avoids the inner tube excessively to imbed in the outer tube and reinstallate. Giving a prompt to the person that the installation is complete to facilitate the connection between the inner and outer tubes.

Preferably, the outer tube periphery fixedly connected with operation ring, the periphery of operation ring is equipped with spacing face, spacing face is the plane.

Through adopting above-mentioned technical scheme, the operation ring is convenient for people to rotate the outer tube in order to realize being connected between the pipeline. The rotation can also be realized by clamping any two limiting surfaces or a plurality of limiting surfaces by using a clamping tool.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the clamping piece limits the inner pipe and the outer pipe to move along the axial direction of the outer pipe, the connection between the two pipelines can be realized by rotating the outer pipe, and the whole pipeline fixedly connected to the inner pipe does not need to be rotated, so that people can conveniently connect the pipelines;

2. the groove wall of the sealing groove limits the sealing ring to move along the axial direction of the outer pipe, and meanwhile, the second avoiding groove reduces the friction distance between the sealing ring and the outer pipe, so that the abrasion of the sealing ring is avoided, and the sealing performance of the sealing ring is improved;

3. the operation ring and the limiting surface facilitate people to rotate so as to realize connection between pipelines.

Drawings

Fig. 1 is a schematic overall structure diagram of a PVC pipe joint.

Fig. 2 is a cross-sectional view of a PVC pipe joint.

Description of the reference numerals: 1. an outer tube; 11. sleeving a pipe; 111. an inner peripheral ring groove; 112. a second avoidance slot; 1121. a guide surface; 12. an outer tube; 121. a first avoidance slot; 13. an operating ring; 131. a limiting surface; 2. an inner tube; 21. an insert tube; 211. a peripheral ring groove; 212. a sealing groove; 22. a connecting pipe; 23. a baffle ring; 3. a clamping piece; 4. and (5) sealing rings.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

Referring to fig. 1 and 2, the embodiment of the present application discloses a PVC pipe joint, which includes an outer pipe 1 and an inner pipe 2. The outer tube 1 comprises a sleeved tube 11 and an outer tube 12, and the sleeved tube 11 is coaxially and fixedly connected to the outer tube 12 and integrally formed. The inner tube 2 includes an insert tube 21 and a connection tube 22, and the insert tube 21 is coaxially and fixedly connected to the connection tube 22 and is integrally formed. The embedded pipe 21 coaxially rotates and is embedded into the sleeved pipe 11, an inner circumferential ring groove 111 is coaxially arranged on the inner circumference of the sleeved pipe 11, an outer circumferential ring groove 211 is coaxially arranged on the outer circumference of the embedded pipe 21, and the notch of the outer circumferential ring groove 211 is opposite to the notch of the inner circumferential ring groove 111, so that the outer circumferential ring groove 211 is communicated with the inner circumferential ring groove 111.

In this embodiment, the connector tube 22 is adapted to be fixedly connected to one pipe and the peripheral tube 12 is threaded on its outer periphery for threaded connection to another pipe. In other embodiments, the peripheral tube 12 is fixedly attached to one conduit and the connector tube 22 is threaded around its periphery and is threaded into the other conduit.

Referring to fig. 2, the PVC pipe joint further includes a clamping member 3, and the clamping member 3 has elasticity. The joint piece 3 is the annular, and joint piece 3 is equipped with a breach so that joint piece 3 has the tip along self circumference. In joint piece 3 coaxial inlays to periphery annular 211, and joint piece 3 along the mutual butt in both ends of self circumference, the external diameter of joint piece 3 is less than the cover and establishes the internal diameter of pipe 11 so that the cover is established pipe 11 and can be established to joint piece 3 with the coaxial cover.

When the notch of outer periphery annular groove 211 just faces the notch of inner periphery annular groove 111, joint piece 3 reconversion (joint piece 3 breaks away from each other along the both ends of self circumference) to make the inner wall of inner periphery annular groove 111 of the outer periphery butt of joint piece 3, at this moment, the internal diameter of joint piece 3 is less than the external diameter of embedding pipe 21 so that joint piece 3 still imbeds to outer periphery annular groove 211 in. The end surface of the engaging member 3 along the axial direction of the insert pipe 21 abuts against the inner walls of the inner circumferential ring groove 111 and the outer circumferential ring groove 211 to restrict the insert pipe 21 and the sleeve pipe 11 from moving relatively along the axial direction of the insert pipe 21.

In this embodiment, the clip member 3 is a clip spring. In other embodiments, the clip 3 may be an elastic ring-shaped object with a gap.

Referring to fig. 2, a seal groove 212 is coaxially provided on the outer periphery of the insert pipe 21, and the seal groove 212 is located on the side of the outer peripheral ring groove 211 close to the connection pipe 22. The sealing ring 4 is coaxially embedded in the sealing groove 212, the inner periphery of the sealing ring 4 abuts against the inner wall of the sealing groove 212, and the outer periphery of the sealing ring 4 abuts against the inner periphery of the setting pipe 11.

The periphery of the connection tube 22 is coaxially and fixedly connected with a baffle ring 23 and is integrally formed, and the surface of the baffle ring 23 facing the sleeve pipe 11 abuts against the end surface of the sleeve pipe 11.

Referring to fig. 2, the inner circumference of the sleeved pipe 11 is coaxially provided with a second avoiding groove 112, the second avoiding groove 112 is located at one side of the sealing groove 212 close to the connecting pipe 22, and the second avoiding groove 112 penetrates through the sleeved pipe 11 along a direction close to the connecting pipe 22. A guide surface 1121 is disposed at a groove wall of the second avoiding groove 112 close to the sealing groove 212, and a projection of the guide surface 1121 along the axial direction of the sleeved pipe 11 is coaxial with the sleeved pipe 11. The distance from any point on the guide surface 1121 to the axis of the insert pipe 21 decreases as the point approaches the seal groove 212.

The inner periphery of the peripheral pipe 12 is coaxially provided with a first avoiding groove 121, the first avoiding groove 121 is positioned on one side of the inner peripheral ring groove 111 close to the peripheral pipe 12, and the first avoiding groove 121 penetrates through the peripheral pipe 12 along the direction of the inner peripheral ring groove 111 close to the peripheral pipe 12. The wall of the first escape groove 121 close to the inner circumferential groove 111 is flush with the end face of the insert tube 21 facing away from the connecting tube 22.

Referring to fig. 1 and 2, the operation ring 13 is fixedly connected to the outer periphery of the sleeved pipe 11 and is integrally formed, a plurality of limiting surfaces 131 are arranged on the outer periphery of the operation ring 13, the limiting surfaces 131 are all parallel to the axis of the sleeved pipe 11, and the limiting surfaces 131 are all rectangular. The limiting surfaces 131 are sequentially connected end to form a ring coaxial with the sleeve pipe 11. Meanwhile, the number of the limiting surfaces 131 may be four, six, eight, or the like.

The implementation principle of a PVC coupling of the embodiment of this application does: the inner pipe 2 and the outer pipe 1 are restricted from moving relatively in the axial direction of the outer pipe 1 by the snap-in members 3 inserted into the inner circumferential ring groove 111 and the outer circumferential ring groove 211. The groove 212 is sealed to achieve the sealability of the connection between the inner pipe 2 and the outer pipe 1.

The connection pipe 22 is fixedly connected to a pipe, and the insertion pipe 21 is coaxially rotated to be inserted into the sheathing pipe 11. Relative rotation can occur between the insert tube 21 and the sleeve tube 11 to match the threads on the outer periphery of the outer tube 12 to the threads of another pipe, by holding the operating ring 13 by hand or using a tool to grip the stop surface 131 to cause the outer tube 12 to rotate and thread into another pipe. Thereby realize only rotating outer tube 1 that the coupling was equipped with and can realize the connection between two pipelines, and then be convenient for connect between two pipelines.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A PVC coupling, its characterized in that: the pipe joint comprises an outer pipe (1), an inner pipe (2) and a clamping piece (3), wherein an outer circumferential ring groove (211) is coaxially arranged on the outer circumference of the inner pipe (2), and an inner circumferential ring groove (111) is coaxially arranged on the inner circumference of the outer pipe (1); one end of the inner pipe (2) is coaxially and rotatably embedded into the outer pipe (1), and the inner circumferential ring groove (111) is communicated with the outer circumferential ring groove (211); the clamping piece (3) is elastic, one end of the clamping piece (3) is embedded into the inner circumferential ring groove (111), and the other end of the clamping piece (3) is embedded into the outer circumferential ring groove (211);

the outer pipe (1) is used for being fixedly connected to one pipeline and the inner pipe (2) is used for being in threaded connection with another pipeline, or the inner pipe (2) is fixedly connected to one pipeline and the outer pipe (1) is used for being in threaded connection with another pipeline.

2. The PVC pipe joint according to claim 1, wherein: the clamping piece (3) is annular, and a gap is formed in the clamping piece (3); when the two ends of the clamping piece (3) along the circumferential direction of the clamping piece are abutted, the outer diameter of the clamping piece (3) is smaller than the inner diameter of the outer pipe (1); when the outer periphery of the clamping piece (3) abuts against the inner wall of the inner peripheral ring groove (111), the inner diameter of the clamping piece (3) is smaller than the outer diameter of the inner pipe (2).

3. The PVC pipe joint according to claim 2, wherein: the inner circumference of outer tube (1) is coaxial to be equipped with first groove (121) of dodging, first groove (121) of dodging is located one side of interior circumference groove (111), first groove (121) of dodging is along keeping away from outer tube (1) is run through to the direction of interior circumference groove (111).

4. The PVC pipe joint according to claim 1, wherein: the outer periphery of the inner pipe (2) is coaxially connected with a sealing ring (4), the sealing ring (4) abuts against the inner pipe (2), and the outer periphery of the sealing ring (4) abuts against the inner periphery of the outer pipe (1).

5. PVC pipe connection according to claim 4, characterized in that: a sealing groove (212) is coaxially arranged on the periphery of the inner pipe (2), and the sealing ring (4) is embedded in the sealing groove (212); the sealing ring (4) is tightly pressed against the inner wall of the sealing groove (212).

6. PVC pipe connection according to claim 5, characterized in that: inner tube (2) are including coaxial fixed connection's embedding pipe (21) and connecting pipe (22), embedding pipe (21) is coaxial to be inlayed in outer tube (1), connecting pipe (22) are located outside outer tube (1), seal groove (212) are located the periphery of embedding pipe (21), just seal groove (212) are located one side of periphery annular (211) towards connecting pipe (22).

7. PVC pipe connection according to claim 6, characterized in that: the coaxial second of being equipped with in interior week of outer tube (1) dodges groove (112), groove (112) are located are dodged to the second interior week annular (111) are close to one side of connecting pipe (22), groove (112) are dodged to the second along being close to the direction of connecting pipe (22) is run through outer tube (1).

8. The PVC pipe coupling according to claim 7, wherein: the groove wall of the second avoidance groove (112) close to the sealing groove (212) is provided with a guide surface (1121), and the distance from any point on the guide surface (1121) to the axis of the embedded pipe (21) is reduced along with the point close to the sealing groove (212).

9. The PVC pipe joint according to claim 1, wherein: the outer periphery of the inner tube (2) is fixedly connected with a baffle ring (23), the outer diameter of the baffle ring (23) is larger than the inner diameter of the outer tube (1), and the surface, facing the outer tube (1), of the baffle ring (23) is used for abutting against the outer tube (1).

10. The PVC pipe coupling according to claim 1, wherein: the outer tube (1) periphery fixedly connected with operation ring (13), the periphery of operation ring (13) is equipped with spacing face (131), spacing face (131) are the plane.