CN207334050U - improved structure of pipe joint - Google Patents

Abstract

The utility model relates to a coupling structure improvement, it has a body, this body has an at least mouth of pipe, be equipped with the O type ring according to the preface for this orificial body is inside, the seal ring, restraint the piece, the control group reaches and assembles each subassembly with a closed holding ring at the mouth of pipe internal face, this internal usable restraint piece of this body of inserting is detained the location at a body, otherwise utilize external force to actuate the release of this control group, can be with restraining the piece and the body separation, this body can be dismantled by this internal, be formed with a grade portion in addition at the body inner wall so that this seal ring position can not destroyed when using in order to restrict this O type ring, owing to the seal ring is formed with the groove of stepping down of a concave form, can provide the proud tooth that should restrain the piece with great space holding, make the dismantlement of body comparatively really and simple and convenient practicality.

Description

Pipe joint structure improvement

technical field

The utility model relates to a connection assembly, in particular to a pipe joint which can be quickly assembled or disassembled with a pipe body.

Background technique

The pipeline system of the prior art is composed of a plurality of pipe bodies branched in a three-dimensional space connected to each other and assembled. The connection and assembly between the two pipe bodies can be achieved by using the pipe joints of the prior art, and such pipe joint components except In addition to providing quick and easy insertion and assembly of the pipe body, and if the configuration of the pipeline system must be adjusted, the pipe body and the pipe joint can also be quickly disassembled and separated, so it has been widely used in the pipeline system.

Referring to Fig. 8 to Fig. 10, the pipe joint in the prior art can be a body 70, the body 70 is a hollow body with a length, and the inside of one end of the body 70 is provided with a sealing ring 71, Components such as a fastener 72, a restraint 73, an assembly 74 that can be nested and slidable with each other, and a support ring 75 are provided with a positioning groove inside the body 70 after each component is installed inside the body 70. A C-shaped buckle 76 is arranged in the positioning groove, and the function of each component assembled by the C-shaped buckle 76 can be resisted and fixed. When the pipe body 80 passes through the inner ring of the restraining member 73, the clamping of the elastic protruding teeth makes the pipe body 80 unable to reversely shift by itself. 73 moves so that each protruding tooth no longer clamps the pipe body 80, so that the separation of the pipe body 80 and the pipe joint can be completed, because a C-shaped buckle 76 is used in the aforementioned pipe joint structure, that is, the C-shaped buckle 76 has a A notch that reduces and changes the size of the outer diameter can be provided, thus resulting in insufficient strength against fixation that can be provided;

In addition, when the pipe body 80 passes through the binding member 73 and the sealing member 72, since the elastic protruding teeth are pressed against the outer wall of the pipe body 80, the binding member 73 will push the sealing member 72 to be displaced and Further, the side wall of the sealing ring 71 is over-extruded and improperly compressed, so that part of the material of the sealing ring 71 is squeezed and enters between the inner wall of the body 70 and the outer wall of the pipe body 80 and is cut. A lip 711 is formed due to damage, which further damages the sealing effect and affects its water-sealing performance, and because the sealing ring 71 has been damaged, it cannot be reused.

Furthermore, in the pipe joint of the prior art, the sealing member 72 provided therein forms a bearing part 721 with an inclined surface. The end of 75 pushes against the protruding teeth of the binding member 73, so that the pipe body 80 can reversely displace away from the pipe joint because it is not caught by the protruding teeth, but the sealing member 72 of the prior art is provided with The supporting portion 721 on the inclined surface will limit the displacement distance of each protruding tooth, which will cause problems and disadvantages such as inconvenience and difficulty in use and operation.

Utility model content

In order to solve the problems and shortcomings of the aforementioned prior art, the utility model provides a pipe joint. After assembly, each component is positioned by a positioning ring that is a closed hollow ring body, which has better stability and is compatible with The disassembly and assembly between the pipe bodies can be more convenient and practical.

In order to achieve the above-mentioned purpose, the technical means used in the utility model is to provide an improved pipe joint structure, wherein the pipe joint includes a body, which is a hollow body and has at least one nozzle. A fastening mechanism is provided in the body; the fastening mechanism includes a sealing ring, a restraint piece, a control group and a positioning ring respectively arranged in sequence in each of the nozzles of the body; the inner wall of the body A recessed ring seat is formed, and an assembly part and a ring groove are formed at the position facing the nozzle. The inner diameter of the assembly part is larger than the inner diameter of the ring seat, and a stage is formed between the two different inner diameters. , an O-ring is provided in the ring seat of the body; the sealing ring is a hollow ring with two ends, one end is against the step part of the body and against the O-ring, and the other The inner wall surface of one end surface is concaved to form a relief groove; the binding member is a hollow thin ring piece, and the inside of one side of the ring piece protrudes to form a plurality of protruding teeth extending obliquely towards the center, and the side surface is attached to the sealing On the other end face of the fixing ring, each of the protruding teeth is offset towards one side of the sealing ring; the control group includes a restricting piece and a releasing piece, both of which are hollow rings and the releasing piece can pass through the limiting In the part, the inner ring wall of the restricting part is recessed to form a movable groove, and the inner ring wall of the ring and the groove bottom of the movable groove form an abutting ring surface, and one end face of the restricting part abuts against the corresponding end face of the restraining part ; The releasing part is a hollow ring with a releasing part formed at one end and an actuating part formed at the other end. The part is inside the restricting part, the release part and the protruding ring part are in the movable groove; the positioning ring is a closed hollow ring, which is set in the ring groove of the body to resist and restrict the restricting part. the other end.

Optionally, the structure of the pipe joint is improved, wherein the body of the pipe joint has two nozzles, and the fastening mechanism is respectively provided in each of the nozzles of the body.

Optionally, the structure of the pipe joint is improved, wherein one end of the body of the pipe joint has a nozzle, and the other end is closed, and the fixing mechanism is provided in the nozzle of the body.

Optionally, the structure of the pipe joint is improved, wherein the body of the pipe joint has three nozzles, and the fastening mechanism is respectively provided in each of the nozzles of the body.

Optionally, the structure of the pipe joint is improved, wherein the positioning ring is a ring formed by an elastic piece surrounding at least two turns, that is, the hollow ring is composed of two mutually stacked pieces.

Optionally, the structure of the pipe joint is improved, wherein a protruding ring protruding toward the inside of the main body is formed at the ring seat part adjacent to the step part of the assembly part, and the protruding ring protrudes toward the inner part of the ring seat part. The side is formed into an arc shape.

The utility model utilizes the above-mentioned technical means, after the components such as an O-ring, a sealing ring, a restraint and a control group are arranged inside the pipe joint, a closed and hollow ring body is used for positioning. The ring is assembled and positioned, and the positioning ring has better strength so that each component can be stably installed in the body; moreover, because the inner wall of the sealing ring is recessed to form a groove, by having a larger accommodating Space, so that when the protruding teeth of the restraining member are pushed by the release part of the releasing member, each of the protruding teeth can move into the letting groove, so that each protruding tooth can be separated from the pipe body arranged inside the pipe joint, Furthermore, the pipe body can be quickly and easily disassembled and separated from the pipe joint. In addition, the seal ring is limited by the stepped part of the inner wall of the body, so that the side external force on the O-ring is limited, so as to ensure that the O-ring is in the ring seat and is produced after being subjected to external force. It deforms and has a sealing effect, but it can be reused without destroying the O-ring.

Description of drawings

Figure 1 is a schematic cross-sectional view of the implementation state of the utility model assembled with a pipe body.

Fig. 2 is a three-dimensional exploded view of the utility model.

Fig. 3 is a schematic cross-sectional view of the utility model.

Fig. 4 is a partial cross-sectional enlarged view of the present utility model.

Fig. 5 is a schematic diagram of an example of implementing the utility model with a nozzle in the body.

Fig. 6 is a schematic diagram of an example of implementing the utility model with three nozzles in the body.

Fig. 7 is a schematic cross-sectional view of another embodiment of the body of the pipe joint of the present invention.

Fig. 8 is an exploded perspective view of the prior art.

Fig. 9 is a schematic cross-sectional view of the prior art.

Fig. 10 is a schematic view of a pipe joint connected to a pipe body in the prior art.

Description of main component symbols:

1 Fitting 10 Body

100 O-ring 11 Orifice

20 Retaining ring 31 Teeth

40 control group 41 restriction

42 release piece

Detailed ways

In the following, in conjunction with the drawings and preferred embodiments of the utility model, the technical means adopted by the utility model to achieve the intended purpose of the utility model are further described.

Referring to Fig. 1 and Fig. 2, the utility model provides an improved pipe joint structure, the pipe joint 1 includes a body 10, the body 10 is a hollow body and has at least one nozzle 11, relative to each pipe The main body 10 of the port 11 is provided with a fixing mechanism. One of the embodiments shown in the figure is that a pipe body 60 is respectively installed at both ends of the pipe joint 1 to provide one end of the two pipe bodies 60 respectively. Inserted into each nozzle 11 of the main body 10, and connected and fixed by the fastening mechanism.

Another specific embodiment of the pipe joint 1A shown in FIG. 5 can be implemented as a pipe end cap. One end of the main body 10A has a nozzle 11A, and the other end is closed. The nozzle 11A can be A pipe body 60A is inserted into the body 10A, and the pipe body 60A and the body 10A are connected and fixed by the fastening mechanism, so as to close the end of the pipe body 60A; moreover, as shown in FIG. 6 The pipe joint 1B of another specific embodiment is implemented as a three-way pipe joint, wherein the body 10B of the pipe joint 1B has three nozzles 11B, and one end of the three pipe bodies 60B can be respectively inserted into the body 10B In each of the corresponding nozzles 11B, each of the pipe bodies 60B and the main body 10B is connected and fixed by the fastening mechanism, and the three pipe bodies 60B can communicate with each other through the pipe joint 1B.

Each of the nozzles 11, 11A and 11B of the bodies 10, 10A and 10B in the above-mentioned different embodiments is respectively provided with a fastening mechanism. A sealing ring 20 , a binding member 30 , a control group 40 and a positioning ring 50 are arranged in sequence in the openings 11 , 11A and 11B respectively. That is, the structures in each of the nozzles 11, 11A and 11B are the same. In the following, only the embodiments shown in FIGS. 1 to 4 will be described in detail.

1 to 4, the inner wall of the body 10 is formed with a recessed ring seat 12, and an assembly part 13 and a ring groove are respectively formed in sequence from the ring seat 12 toward the nozzle 11. 14. The inner diameter of the assembly part 13 is larger than the inner diameter of the ring seat part 12, a step part 131 is formed between the two different inner diameters, and an O-ring 100 is arranged on the ring seat part 12. The O-ring 100 It is a hollow ring made of rubber material, and one side of the O-ring 100 leans against the ring seat 12 .

The sealing ring 20 is a hollow ring body, the hollow ring body has two end faces, the two end faces are respectively a first end face 22 and a second end face 23, wherein the first end face 22 of the sealing ring 20 The stepped portion 131 inside the body 10 can provide the other side of the O-ring 100 to abut against, and the sealing ring 20 is abutted and limited by the stepped portion 131, the second An accommodating space 121 is formed between an end surface 22 and the ring seat 12, so that the O-ring 100 can be deformed in the accommodating space 121 after being subjected to an external force, and the sealing ring 20 is adjacent to At the end of the second end surface 23 , a relief groove 21 is concavely formed on the inner wall of the end.

The binding member 30 is a hollow thin ring piece, and a plurality of protruding teeth 31 extending obliquely towards the center protrude from the inside of the ring piece. The second end surface 23 of the sealing ring 20 and each of the protruding teeth 31 are slightly offset towards one side of the sealing ring 20 , and each of the protruding teeth 31 can move in the letting groove 21 when being pushed.

The control group 40 includes a limiting piece 41 and a releasing piece 42, the limiting piece 41 and the releasing piece 42 are hollow rings, wherein the releasing piece 42 can pass through the limiting piece 41, the limiting piece 41 is a The hollow ring body has two ends, the two ends are a first end face 411 and a second end face 412, a movable groove 413 is formed in the inner ring wall of the first end face 411, and the movable groove 413 is connected with the second end face of the ring body. An end surface 411 communicates with the inner wall surface of the ring body and the groove bottom of the movable groove 413 to form an abutment ring surface 414 ;

The release member 42 is a hollow ring body and a release portion 421 is formed at one end thereof. The outer ring surface of the release portion 421 is shaped as an inclined plane, and an actuating portion 423 is formed at the other end of the ring body. The release member 42 A protruding ring portion 422 protrudes from the outer ring wall of the ring, the actuating portion 423 of the release member 42 is inside the ring of the restricting member 41, the release portion 421 and the protruding ring portion 422 are in the movable groove 413, And the displacement of the protruding ring portion 422 in the movable groove 413 is restricted by the abutting ring surface 414, and the release portion 421 can protrude in the binding member 30, and when the release member 42 moves, the release portion 421 The inclined surface of 421 can push each of the protruding teeth 31 .

The positioning ring 50 is a closed hollow ring, which is formed by an elastic sheet surrounding at least two circles, that is, the hollow ring is composed of two overlapping sheets, and has a better combination Strength, the positioning ring 50 is set in the ring groove 14 of the body 10, the positioning ring 50 can resist and limit the second end surface 412 of the restricting member 41, and the actuating part 423 of the releasing member 42 is to pass through the positioning The hollow portion of the ring 50 protrudes to the outside of the body 10 .

When the utility model is actually used, the tube body 60 is penetrated by the nozzle 11 of the body 10 and the release part 42 of the control part 40, and its outer tube wall can push the protruding teeth of the restraint part 30. 31 moves toward the position of the groove 21, and the O-ring 100 will be pressed and deformed to a limited extent in the accommodating space 121, and then be pressed against each wall surface of the ring seat 12, the second sealing ring 20 One end surface 22 and the outer tube wall of the tube body 60 are in close contact, and the O-ring 100 with limited deformation will not be damaged by clamping between adjacent components and can be reused. And because the outer tube wall of the tube body 60 is subjected to the abutting positioning of the ends of the protruding teeth 31 of the restraining member 30, it cannot move in the reverse direction.

Furthermore, when the tube body 60 is to be separated and taken out from the main body 10, an external force can be used to push the release part 42 of the control part 40, and when the external force acts on the actuating part 423, the release part 42 will face the binding part. 30, the protruding ring portion 422 of the release member 42 can move in the letting groove 21, and the inclined surface of the outer pipe wall of the releasing portion 421 can push each of the protruding teeth 31 outwards into the letting groove 21 at the same time, because The letting groove 21 is formed on the ring inner wall surface of the sealing ring 20 in a concave form, thereby forming and providing a larger accommodating space, so that each of the protruding teeth 31 can be fixed with the outer tube wall surface of the tube body 60 Separation, since each protruding tooth 31 is definitely separated from the surface of the tube body 60 , the tube body 60 can be taken off from the body 10 .

Referring to FIG. 7, it is another embodiment of the body 10 of the pipe joint of the present invention, wherein a protrusion protruding toward the inside of the body 10 is formed at the ring seat portion 12 and the step portion 131 adjacent to the assembly portion 13. Ring 122, the protruding ring 122 is formed in an arc shape on the side facing the accommodating space 121 formed by the ring seat 12, so as to match the shape of the O-ring 100 correspondingly, and the O-ring 100 is arranged on The inner surface of the ring seat 12 can be abutted against the inner surface of the ring seat 12 and the inner surface of the protruding ring 122, thereby providing a pipe body slightly smaller than the standard size that can still be subjected to the O after being inserted into the body 10. The ring 100 is tightly sealed after being deformed.

The above description is only the preferred embodiment of the present utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as above with the preferred embodiment, it is not intended to limit the utility model. Anyone familiar with this field Those skilled in the art, without departing from the scope of the technical solution of the present utility model, may use the technical content disclosed above to make some changes or be modified into equivalent embodiments with equivalent changes, but all those that do not depart from the technical solution of the present utility model Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model still belong to the scope of the technical solution of the utility model.

Claims (6)

1. An improved pipe joint structure, characterized in that the pipe joint includes a body, which is a hollow body and has at least one nozzle, and a fixing mechanism is provided in the body of each nozzle; The fastening mechanism includes a sealing ring, a binding piece, a control group and a positioning ring respectively arranged in sequence in each of the nozzles of the body; The inner wall of the main body is formed with a recessed ring seat part, and an assembly part and a ring groove are formed at the position facing the nozzle. The inner diameter of the assembly part is larger than the inner diameter of the ring seat part. A stage is formed between them, and an O-ring is arranged in the ring seat of the body; The sealing ring is a hollow ring body, which has two ends, one end of which abuts against the step part of the body and the O-ring, and the inner wall of the other end is concave to form a relief groove; The binding piece is a hollow thin ring piece. A plurality of protruding teeth extending obliquely towards the center protrude from the inside of one side of the ring piece. one side of the sealing ring is offset; The control group includes a restricting piece and a releasing piece, both of which are hollow rings and the releasing piece can pass through the restricting piece. An abutment ring surface is formed with the groove bottom of the movable groove, and one end surface of the restriction member is abutted against the corresponding end surface of the restraint member; the release member is a hollow ring with a release portion formed at one end and a working portion formed at the other end. The moving part, the outer ring surface of the release part is an inclined plane and protrudingly forms a protruding ring part, the actuating part of the releasing part is inside the restricting part, and the releasing part and the protruding ring part are inside the movable groove; The positioning ring is a closed hollow ring body, which is arranged in the ring groove of the body and can resist and limit the other end surface of the limiting member. 2 . The structural improvement of the pipe joint according to claim 1 , wherein the main body of the pipe joint has two nozzles, and the fastening mechanism is respectively provided in each of the nozzles of the main body. 3. The improved pipe joint structure according to claim 1, characterized in that, one end of the body of the pipe joint has a nozzle, the other end is closed, and the nozzle of the body is provided with the fixing mechanism. 4 . The improved structure of the pipe joint according to claim 1 , wherein the body of the pipe joint has three nozzles, and the fastening mechanism is respectively provided in each of the nozzles of the body. 5. The improved structure of the pipe joint according to any one of claims 1 to 4, characterized in that the positioning ring is a ring body formed by an elastic piece surrounding at least two turns, that is, the hollow ring body is formed by two Composed of sheets stacked on top of each other. 6. The structural improvement of the pipe joint according to claim 5, wherein a protruding ring protruding toward the inside of the main body is formed at the ring seat part and the step part adjacent to the assembly part, and the protruding ring protrudes toward the inner part of the body. The inner surface of the ring seat is formed into an arc shape.