CN211175762U

CN211175762U - Pipe joint sealing structure

Info

Publication number: CN211175762U
Application number: CN201922460435.5U
Authority: CN
Inventors: 王杰; 葛茂峻
Original assignee: Taizhou En Great Precision Machinery Co ltd
Current assignee: Taizhou En Great Precision Machinery Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-08-04
Anticipated expiration: 2029-12-31

Abstract

The utility model provides a pipe joint seal structure, including coupling and telescopic machanism, sealing mechanism is installed to the lateral wall of coupling, and sealing mechanism's inside wall injection moulding is connected with the connecting rod, the spread groove has been seted up at the lateral wall edge of coupling, the outer lane cover of connecting rod is established and is installed solid fixed ring, telescopic machanism bonds at the inner wall of coupling, and telescopic machanism's end bonds and has the closing plate. The utility model provides a, through setting up sealing mechanism, have certain elasticity performance because of elastic sponge at extruded in-process for the sealing washer all the time and closely laminate between the pipeline outer wall, have first sealed effect to the junction between the pipeline, and under mutually supporting between connecting rod and spread groove, have the effect of location to installing the coupling of pipeline junction outer wall, and under the effect of mutually supporting between the screw thread, in order to do benefit to the stable sealing performance who keeps pipeline junction.

Description

Pipe joint sealing structure

Technical Field

The utility model relates to a pipe connection correlation technique field especially relates to a coupling seal structure.

Background

The pipe joint is a part for connecting pipelines in a hydraulic system or installing the pipelines on hydraulic components, is a general name of a connecting piece which can be assembled and disassembled in a fluid passage and mainly comprises a welding type, a clamping sleeve type, a buckling type and a flaring type, so that a sealing structure is required in the process of connecting the pipelines by the pipe joint.

However, the existing pipe joint sealing structures all adopt a single-channel sealing mode to seal the joints of the pipelines, so that gas leakage is easy to occur when airflow or air pressure is too large.

Therefore, it is necessary to provide a pipe joint sealing structure to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pipe joint seal structure has solved current pipe joint seal structure, all adopts single sealing mode sealed to the junction of pipeline for the problem of the gas leakage condition easily appears when air current or atmospheric pressure are too big.

For solving the technical problem, the utility model provides a pair of coupling seal structure, including coupling and telescopic machanism, sealing mechanism is installed to the lateral wall of coupling, and sealing mechanism's inside wall injection moulding is connected with the connecting rod, the spread groove has been seted up at the lateral wall edge of coupling, the outer lane cover of connecting rod is established and is installed solid fixed ring, telescopic machanism bonds at the inner wall of coupling, and telescopic machanism's end bonds and has the closing plate.

Preferably, the sealing mechanism comprises a clamp ring, an elastic sponge and a sealing ring, the inner wall of the clamp ring is bonded with the elastic sponge, and the inner wall of the elastic sponge is bonded with the sealing ring.

Preferably, the clamp rings are connected with the pipe joint clamping grooves through connecting rods, and the two groups of clamp rings are symmetrically arranged around the central axis of the pipe joint.

Preferably, for threaded connection between solid fixed ring and the connecting rod, and the inner wall of solid fixed ring and the outer wall of connecting rod are the screw thread form setting.

Preferably, telescopic machanism includes cavity post, expanding spring and activity post, and the welding of the inside below of cavity post has expanding spring, and the inside top of cavity post is provided with the activity post.

Preferably, the end of activity post runs through the inside of cavity post and the inseparable laminating in top of expanding spring, and cavity post, expanding spring and activity post all are equidistant setting at the inner wall of coupling.

Preferably, the tail end of the sealing plate is bonded with a rubber ring, and the two groups of sealing plates and the two groups of rubber rings are symmetrically arranged on the central axis of the pipe joint.

Compared with the prior art, the utility model provides a pair of coupling seal structure has following beneficial effect:

1. the utility model provides a pipe joint sealing structure, which is characterized in that a sealing mechanism is arranged, and the elastic sponge has certain flexibility in the extrusion process, so that a sealing ring is always tightly attached to the outer wall of a pipeline, and the joint between the pipelines has the first sealing function;

2. the utility model provides a pipe joint sealing structure, through setting up connecting rod and spread groove, under the mutual cooperation between connecting rod and spread groove, can be convenient for the user to the installation of clamp ring and coupling, have the effect of positioning to the coupling installed at the outer wall of pipeline junction, and under the mutual cooperation effect between the screw thread, can be convenient for the user to fix firmly clamp ring and coupling after installing, so as to help to keep the stable sealing performance of pipeline junction;

3. the utility model provides a pipe joint seal structure, through setting up telescopic machanism, elastic deformation can take place for expanding spring receiving extruded in-process, so this accessible expanding spring adjust well cavity post and with the interval between the activity post, make the outer wall of the junction of rubber ring and pipeline be in the state of closely laminating, do benefit to the compactness of the junction outer wall that keeps rubber ring and pipeline, the in-process of closely laminating at the outer wall of rubber ring and pipeline junction simultaneously, junction between the pipeline has secondary seal's effect, in order to do benefit to and keep holistic sealing performance between the pipeline.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the pipe joint of the present invention;

FIG. 3 is an enlarged view of the portion A of FIG. 2 according to the present invention;

fig. 4 is a schematic top view of the fixing ring of the present invention;

FIG. 5 is an enlarged view of the portion B of FIG. 2 according to the present invention;

fig. 6 is a schematic structural view of the sealing mechanism of the present invention.

Reference numbers in the figures: 1. the pipe joint comprises a pipe joint body 2, a sealing mechanism 201, a clamp ring 202, an elastic sponge 203, a sealing ring 3, a connecting rod 4, a connecting groove 5, a fixing ring 6, a telescopic mechanism 601, a hollow column 602, a telescopic spring 603, a movable column 7, a sealing plate 8 and a rubber ring.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6 in combination, wherein fig. 1 is a schematic front view of the present invention; FIG. 2 is a schematic view of the internal structure of the pipe joint of the present invention; FIG. 3 is an enlarged view of the portion A of FIG. 2 according to the present invention; fig. 4 is a schematic top view of the fixing ring of the present invention; FIG. 5 is an enlarged view of the portion B of FIG. 2 according to the present invention; fig. 6 is a schematic structural view of the sealing mechanism of the present invention. This coupling seal structure, including coupling 1 and telescopic machanism 6, sealing mechanism 2 is installed to coupling 1's lateral wall, and sealing mechanism 2's inside wall injection moulding is connected with connecting rod 3, and spread groove 4 has been seted up at coupling 1's lateral wall edge, and the outer pot head of connecting rod 3 is established and is installed solid fixed ring 5, and telescopic machanism 6 bonds at coupling 1's inner wall, and telescopic machanism 6's end bonds and has closing plate 7.

Sealing mechanism 2 includes clamp ring 201, elasticity sponge 202 and sealing washer 203, and the inner wall of clamp ring 201 bonds elasticity sponge 202, and the inner wall of elasticity sponge 202 bonds and has sealing washer 203, has certain elasticity performance because of elasticity sponge 202 in extruded in-process for sealing washer 203 all the time and closely laminating between the pipeline outer wall, has first sealed effect to the junction between the pipeline.

The clamp ring 201 is connected with the clamping groove of the pipe joint 1 through the connecting rod 3, two groups of clamp rings 201 are symmetrically arranged about the central axis of the pipe joint 1, and under the mutual matching between the connecting rod 3 and the connecting groove 4, the clamp ring 201 and the pipe joint 1 can be conveniently installed by a user, and the pipe joint 1 installed on the outer wall of the pipeline connecting part has a positioning effect.

For threaded connection between solid fixed ring 5 and the connecting rod 3, and the inner wall of solid fixed ring 5 and the outer wall of connecting rod 3 are the screw thread form setting, under the effect of mutually supporting between the screw thread, but the user of facilitating the use is fixed firm with clamp ring 201 and coupling 1 after the installation to do benefit to the stable sealing performance who keeps the pipe connection department.

Telescopic machanism 6 includes cavity post 601, expanding spring 602 and activity post 603, and the welding of the inside below of cavity post 601 has expanding spring 602, and the inside top of cavity post 601 is provided with activity post 603, and expanding spring 602 can take place elastic deformation receiving extruded in-process, so this accessible expanding spring 602 adjust cavity post 601 and the interval between the activity post 603 for the outer wall of the junction of rubber ring 8 and pipeline is in the state of closely laminating.

The end of the movable column 603 runs through the inside of the hollow column 601 and is tightly attached to the top end of the telescopic spring 602, and the hollow column 601, the telescopic spring 602 and the movable column 603 are arranged at equal intervals on the inner wall of the pipe joint 1, so that the tightness of the outer wall of the joint of the rubber ring 8 and the pipeline is favorably maintained.

The end of sealing plate 7 bonds and has rubber ring 8, and sealing plate 7 and rubber ring 8 have two sets ofly about the equal symmetrical arrangement of axis of coupling 1, at the in-process that the outer wall of rubber ring 8 and pipe connection department closely laminated, has the effect of secondary seal to the junction between the pipeline to do benefit to and keep holistic sealing performance between the pipeline.

The utility model provides a pair of coupling seal structure's theory of operation as follows:

firstly, respectively sleeving and installing the pipe joint 1 at the joint of a pipeline, wherein a rubber ring 8 inside the pipe joint 1 is tightly attached to the outer wall of the joint of the pipeline, meanwhile, a telescopic spring 602 between the rubber ring 8 and a hollow column 601 is in a contracted state, the joint between the pipelines has a sealing effect, then, a clamping hoop 201 penetrates through the pipeline to a connecting rod 3 on the inner side wall of the clamping hoop 201, the connecting rod is embedded into a connecting groove 4 on the edge of the outer side wall of the pipe joint 1, the tail end of the connecting rod 3 is tightly attached to the inner bottom end of the connecting groove 4, then, a fixing ring 5 is rotated clockwise, at the moment, under the mutual matching effect between threads, the tail end of the fixing ring 5 is rotated to the position tightly attached to the top end of the connecting groove 4, finally, in the process, a sealing ring 203 on the inner wall of the fixing ring 5 is also tightly attached to the outer wall of, the sealing structure is beneficial to maintaining the integral sealing performance between pipelines, and the using process of the sealing structure for the pipe joint is completed.

1. the utility model provides a pipe joint sealing structure, through setting up the sealing mechanism, because the elastic sponge 202 has certain elasticity performance in the course of squeezing, make the seal ring 203 closely laminate with the pipeline outer wall all the time, have the sealed effect of the first way to the junction between the pipelines;

2. the utility model provides a pipe joint sealing structure, through setting up connecting rod 3 and spread groove 4, under the mutual cooperation between connecting rod 3 and spread groove 4, can be convenient for the user to the installation of clamp ring 201 and coupling 1, have the effect of location to the coupling 1 of installing at the outer wall of pipeline junction, and under the mutual cooperation effect between the screw thread, can be convenient for the user to fix firmly clamp ring 201 and coupling 1 after installing, so as to help to keep the stable sealing performance of pipeline junction;

3. the utility model provides a coupling seal structure, through setting up telescopic machanism 6, elastic deformation can take place for expanding spring 602 receiving extruded in-process, so interval between cavity post 601 and the activity post 603 in this accessible expanding spring 602 is adjusted, make the outer wall of the junction of rubber ring 8 and pipeline be in the state of closely laminating, do benefit to the compactness of the junction outer wall that keeps rubber ring 8 and pipeline, the in-process of closely laminating at the outer wall of rubber ring 8 and pipeline junction simultaneously, junction between the pipeline has secondary seal's effect, in order to do benefit to and keep holistic sealing performance between the pipeline.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The utility model provides a coupling seal structure, includes coupling (1) and telescopic machanism (6), its characterized in that: sealing mechanism (2) are installed to the lateral wall of coupling (1), and the inside wall of sealing mechanism (2) is moulded plastics and is connected with connecting rod (3), spread groove (4) have been seted up at the lateral wall edge of coupling (1), the outer pot head of connecting rod (3) is established and is installed solid fixed ring (5), telescopic machanism (6) bond at the inner wall of coupling (1), and telescopic machanism's (6) end bonds and has closing plate (7).

2. The pipe joint sealing structure according to claim 1, wherein the sealing mechanism (2) comprises a clamp ring (201), an elastic sponge (202) and a sealing ring (203), the elastic sponge (202) is adhered to the inner wall of the clamp ring (201), and the sealing ring (203) is adhered to the inner wall of the elastic sponge (202).

3. A pipe joint sealing structure according to claim 2, characterized in that the clamp rings (201) are connected with the clamp grooves of the pipe joint (1) through the connecting rods (3), and the clamp rings (201) are arranged symmetrically in two groups about the central axis of the pipe joint (1).

4. The pipe joint sealing structure according to claim 1, wherein the fixing ring (5) and the connecting rod (3) are in threaded connection, and the inner wall of the fixing ring (5) and the outer wall of the connecting rod (3) are both in threaded arrangement.

5. The pipe joint sealing structure according to claim 1, wherein the telescoping mechanism (6) comprises a hollow column (601), a telescoping spring (602) and a movable column (603), the telescoping spring (602) is welded on the lower portion of the inside of the hollow column (601), and the movable column (603) is arranged on the upper portion of the inside of the hollow column (601).

6. The pipe joint sealing structure according to claim 5, wherein the end of the movable column (603) penetrates through the inside of the hollow column (601) and is closely attached to the top end of the expansion spring (602), and the hollow column (601), the expansion spring (602) and the movable column (603) are arranged at equal intervals on the inner wall of the pipe joint (1).

7. The pipe joint sealing structure according to claim 1, wherein the rubber ring (8) is bonded to the end of the sealing plate (7), and two sets of the sealing plate (7) and the rubber ring (8) are symmetrically arranged about the central axis of the pipe joint (1).