CN212004704U - Pipe joint convenient to disassemble and assemble - Google Patents

Abstract

The utility model relates to the field of pipe joints, in particular to a pipe joint convenient to disassemble and assemble, which comprises a joint pipe body, an O-shaped ring, a sealing fixed ring, a clamping ring, a first push ring and a second push ring, wherein the O-shaped ring, the sealing fixed ring, the clamping ring, the first push ring and the second push ring are sequentially arranged inside the joint pipe body; the O-shaped ring, the sealing fixed ring, the clamping ring and the first push ring are sequentially in contact connection, and the first push ring is in contact with or close to the second push ring; the connector pipe body is internally provided with a retaining ring, the retaining ring is sleeved on the outer sides of the first pushing ring and the second pushing ring, and the retaining ring is in threaded connection with the second pushing ring. The utility model realizes the disassembly and assembly of the pipe joint by utilizing the self-locking function of the thread, has simple and convenient operation process, and does not need manpower to keep a disassembling tool for a long time; each part has high dimensional accuracy, good matching degree and good sealing effect.

Description

Pipe joint convenient to disassemble and assemble

Technical Field

The utility model belongs to the technical field of the coupling and specifically relates to a coupling convenient to dismouting.

Background

At present, the pipe joint is connected with a pipe fitting in the market, a clamping ring is arranged in the pipe joint, and the pipe fitting is clamped by the clamping ring. In order to realize the recycling of the pipe joint, the pipe fitting and the pipe joint can be detached. The installation and the disassembly of a pressing movable sleeve or a rotatable locking block are realized in the pipe joint in the market at present. However, in the actual use process, the pipe joint of the pressing movable sleeve is poor in sealing performance after installation, a rubber sleeve needs to be installed at the joint of the pipe joint and the pipe, the rubber sleeve is prone to aging after long-time use, and the water leakage phenomenon can still occur due to the fact that the pipe joint and the pipe are loosened. And use rotatable locking piece, because the locking piece must rotate to specific position and just can reach and demolish the pipe fitting or install the pipe fitting, in case do not reach specific position, arouse the reverse slip of locking piece easily, cause the pipe fitting installation or dismantle the process hard, not smooth phenomenon easily.

Disclosure of Invention

The utility model aims at providing a coupling convenient to dismouting.

The utility model provides a because the defect of current coupling inner structure, with pipe fitting installation or dismantlement in-process, cause easily leaking or dismantle hard problem.

The utility model provides a technical scheme that its technical problem adopted is: the utility model comprises a joint pipe body, an O-shaped ring, a sealing fixed ring, a clamping ring, a first push ring and a second push ring which are sequentially arranged inside the joint pipe body; the O-shaped ring, the sealing fixed ring, the clamping ring and the first push ring are sequentially in contact connection, and the first push ring is in contact with or close to the second push ring; the connector pipe body is internally provided with a retaining ring, the retaining ring is sleeved on the outer sides of the first pushing ring and the second pushing ring, and the retaining ring is in threaded connection with the second pushing ring.

O type circle, sealed retainer plate, rand, first ring that pushes away contact in proper order connect, realize the transmission of pipe fitting dismantlement in-process power. The retaining ring is in threaded connection with the second push ring, and the first push ring is moved by rotation of the second push ring. The threaded connection has the advantages that the state of the operating tool is maintained for a long time without manpower during disassembly, and the operation is convenient. The pipe joint has the advantages that the assembly of all parts in the pipe joint is very easy, the replacement and the maintenance are convenient, the sealing effect is good after the pipe fitting is connected with the pipe joint, and no extra rubber ring is required for wrapping.

Further, the joint pipe body comprises a first section of pipe body, a second section of pipe body and a third section of pipe body which are connected in sequence; the first section of pipe body corresponds to a first accommodating cavity in the joint pipe body, and the second section of pipe body corresponds to a second accommodating cavity in the joint pipe body; the inner diameter of the first section of pipe body is larger than that of the second section of pipe body, and the inner diameter of the second section of pipe body is larger than that of the third section of pipe body; a first step is arranged between the inner wall of the first section of pipe body and the inner wall of the second section of pipe body, and a second step is arranged between the inner wall of the second section of pipe body and the inner wall of the third section of pipe body; one end of the first section of pipe body, which is opposite to the second section of pipe body, is a pipe fitting inlet and outlet.

Furthermore, the O-shaped ring is embedded in the second step, the sealing fixing ring is embedded in the first step, and one side of the O-shaped ring is abutted to the sealing fixing ring.

Furthermore, the sealing fixing ring comprises an upper fixing ring end surface and a lower fixing ring end surface, the annular width size of the upper fixing ring end surface is smaller than that of the lower fixing ring end surface, and the width of the O-shaped ring is matched with that of the lower fixing ring end surface; the outer ring wall of the sealing fixing ring comprises a first ring-shaped section and a second ring-shaped section, the diameter of the first ring-shaped section is larger than that of the second ring-shaped section, and a third step is arranged between the first ring-shaped section and the second ring-shaped section.

Still further, the rand laminating is in sealed retainer plate up end, the inner wall evenly distributed of rand has first latch, first latch be the slope state and distribute, the free end of first latch is towards the slope of one side of installation sealed retainer plate.

Furthermore, the inner annular wall of the sealing fixing ring is of an inclined structure, and the inclined direction of the inclined structure is consistent with the inclined direction of the first clamping tooth; the size of the inner diameter of a circle formed by enclosing the free ends of the first clamping teeth and the size of the inner diameter of the O-shaped ring are matched with the outer diameter of the installed pipe fitting; the inner diameter of the O-shaped ring is smaller than the circular inner diameter formed by the free ends of the first clamping teeth in an enclosing mode.

Still further, the first push ring comprises a first push ring upper end surface and a first push ring lower end surface, and the annular width dimension of the first push ring lower end surface is smaller than that of the first push ring upper end surface; the lower end face of the first push ring is in contact with the first latch; the upper end surface of the first push ring is contacted with or close to the second push ring.

Furthermore, a bending section is arranged at the inlet and outlet of the pipe fitting of the joint pipe body; one end of the retaining ring is abutted against the third step, and the other end of the retaining ring is contacted with the inner wall of the bending section; the inner wall of the retaining ring is divided into a first contact section and a second contact section; an annular clamping groove is formed between the third step and the inner wall of the first section of the pipe body; the end part of the first contact section extends to the annular clamping groove; and a gap is reserved between the first push ring and the middle section of the first contact section.

Furthermore, a first thread section and a first smooth section are arranged on the inner annular wall of the second contact section, a first limiting step is arranged between the first thread section and the first smooth section, and the first smooth section is close to the pipe fitting inlet and outlet of the joint pipe body; a second smooth section, a second thread section and an operation section are sequentially arranged on the outer ring wall of the second push ring; a first thread section of the second contact section is matched with a second thread section of the second push ring, the depth of the second thread section is smaller than that of the first thread section, and a left-right slip allowance of the second thread section is reserved on the first thread section; and a second limiting step is arranged between the second thread section and the operation section.

Furthermore, the first smooth section is matched with the operation section, the operation section is provided with second clamping teeth and clamping grooves which are uniformly distributed, and the openings of the clamping grooves face the pipe fitting inlet and outlet of the joint pipe body.

The utility model has the advantages that: compared with the prior art, the utility model has the advantages of as follows:

1. each component structure is arranged in the pipe joint, so that the safety is good, the external interference is small, the precision among the components is high, the structure is compact, and a specific tool is required for working;

2. the retaining ring is in threaded connection with the second pushing ring, and the threads have a self-locking function and do not need long-time manual maintenance;

3. the threaded connection has a boosting effect, and the intensity of workers is reduced.

4. The O-shaped ring inside is matched with the clamping ring, so that the sealing performance is ensured, and the firmness of pipe fitting installation is also ensured.

Drawings

Fig. 1 is a schematic cross-sectional view of the present invention.

Fig. 2 is a schematic structural diagram of the joint body of the present invention.

Fig. 3 is an enlarged schematic view at a in fig. 1.

Fig. 4 is a schematic structural view of the collar and the O-ring of the present invention after being installed.

Fig. 5 is an enlarged schematic view at B in fig. 1.

Fig. 6 is a cross-sectional view of the retaining ring and the second push ring according to the present invention.

Fig. 7 is a perspective view of the combination of the retaining ring and the second pushing ring of the present invention.

In the figure: 1. a joint pipe body; 10. a first section of pipe body; 11. a second section of pipe body; 12. a third section of tube body; 13. a second accommodating cavity; 14. a second step; 15. a first step; 16. a first accommodating cavity; 17. bending the section; 18. a pipe fitting inlet and outlet; 2, an O-shaped ring; 3. sealing the fixed ring; 30. the lower end surface of the fixed ring; 31. a third step; 32. a first annular segment; 33. a second annular segment; 34. the upper end surface of the fixed ring; 35. a tilt structure; 4. a collar; 40. a first latch; 41. the free end of the first latch is encircled to form a circle 5. a first push ring; 50. the lower end face of the first push ring; 51. the upper end surface of the first push ring; 6. a second push ring; 60. a second smooth section; 61. a second thread segment; 62. an operation section; 620. a card slot; 621. a second latch; 63. a second limit step; 7. a retaining ring; 70. a first contact section; 71. a second contact section; 710. a first thread segment; 711. a first limit step; 712. a first smooth section; 8. a gap.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

As shown in fig. 1, the utility model discloses a connect body 1 and install in proper order at the inside O type circle 2 of connecting body 1, sealed retainer plate 3, rand 4, first ring 5 and the second of pushing away and push away circle 6. The O-shaped ring 2, the sealing fixing ring 3, the clamping ring 4 and the first push ring 5 are sequentially in contact connection, and the first push ring 5 is in contact with or close to the second push ring 6. The inside retaining ring 7 that still is equipped with of joint body, the retaining ring 7 cover pushes away the outside of circle 6 in first push ring 5 and second, and retaining ring 7 pushes away 6 threaded connection with the second.

As shown in fig. 1 and 2, the joint pipe 1 includes a first pipe 10, a second pipe 11, and a third pipe 12 connected in this order. The first section of pipe body 10 corresponds to a first accommodating cavity 16 inside the joint pipe body, and the second section of pipe body 11 corresponds to a second accommodating cavity 13 inside the joint pipe body. The inner diameter of the first section of pipe body 10 is larger than that of the second section of pipe body 11, and the inner diameter of the second section of pipe body 11 is larger than that of the third section of pipe body 12. A first step 15 is arranged between the inner wall of the first section of pipe body 10 and the inner wall of the second section of pipe body 11, and a second step 14 is arranged between the inner wall of the second section of pipe body 11 and the inner wall of the third section of pipe body 12; the end of the first section of pipe 10 opposite to the second section of pipe 11 is a pipe inlet 18. The two ends of the joint pipe body 1 are of a through structure. One end of the third segment of pipe body 12 opposite to the second pipe body 11 is of an open structure.

As shown in fig. 1 and 2, the O-ring 2 is fitted to the second step 14, the seal retainer ring 3 is fitted to the first step 15, and one side of the O-ring 2 abuts against the seal retainer ring 3. The thickness of the O-ring 2 is consistent with the depth of the second accommodating cavity 13. The matching of the components must be very precise to achieve good sealing and mounting effects.

As shown in fig. 1 and 3, the sealing fixing ring 3 includes a fixing ring upper end surface 34 and a fixing ring lower end surface 30, an annular width dimension of the fixing ring upper end surface 34 is smaller than an annular width dimension of the fixing ring lower end surface 30, and a width of the O-ring 2 is matched with an annular width of the fixing ring lower end surface 30. Therefore, the sealing effect can be prevented from being influenced by the fact that the O-shaped ring 2 slides into the inner wall of the sealing fixing ring 3 after being extruded. The outer annular wall of the seal retainer ring 3 comprises a first annular section 32 and a second annular section 33, the diameter of the first annular section 32 is larger than that of the second annular section 33, and a third step 31 is arranged between the first annular section 32 and the second annular section 33. After installation, the first annular segment 32 is attached to the inner wall of the first receiving cavity 16. A gap is left between the second annular section 33 and the inner wall of the first accommodating cavity 16.

As shown in fig. 1 and 3, the collar 4 is attached to the upper end surface 34 of the sealing fixing ring, first latches 40 are uniformly distributed on the inner wall of the collar 4, the first latches 40 are distributed in an inclined state, and the free ends of the first latches 40 are inclined towards one side where the sealing fixing ring 3 is installed.

The inner annular wall of the sealing fixing ring 3 is an inclined structure 35, and the inclined direction of the inclined structure 35 is consistent with the inclined direction of the first latch 40. As shown in fig. 4, the inner diameter of the circle 41 formed by the free end of each first latch 40 and the inner diameter of the O-ring 2 are adapted to the outer diameter of the installed pipe. The O-ring 2 has an inner diameter dimension smaller than that of a circle 41 defined by the free ends of the first latches 40. That is, the inner diameter of the circular ring 41 must be slightly larger than the inner diameter of the O-ring 2, so that the first latch 40 can perform the function of clamping the pipe fitting and the O-ring 2 can perform the sealing function. The sizes of the two are matched with the pipe fitting, so that the clamping can be guaranteed not to be loosened and not to leak water. If the collar 4 is replaced by a different size (the inner diameter of the circle 41 defined by the free ends of the first latches 40 varies), the O-ring 2 must also be replaced by a suitable size to ensure a smooth fitting of the pipe.

As shown in fig. 1 and 5, the first push ring 5 includes a first push ring upper end surface 51 and a first push ring lower end surface 50, and an annular width dimension of the first push ring lower end surface 50 is smaller than an annular width dimension of the first push ring upper end surface 51. The lower end surface 50 of the first push ring is contacted with the first latch 40; the upper end surface 51 of the first push ring is in contact with or close to the second push ring 6. When the second push ring 6 works, the second push ring 6 moves and contacts with the upper end surface 51 of the first push ring to indirectly press the first latch 40. When the second pushing ring 6 is reset, the second pushing ring 6 gradually moves reversely until the second pushing ring moves to the first limiting step 711, the second pushing ring is separated from the first pushing ring 5, no pressure is applied to the first pushing ring 5 at this time, and the first latch 40 is also restored to the reset state.

As shown in fig. 1, 2 and 5, a bending section 17 is provided at a pipe inlet 18 of the joint pipe body 1. One end of the retainer 7 abuts against the third step 31, and the other end contacts the inner wall of the bent section 17. The inner wall of the retaining ring 7 is divided into a first contact section 70 and a second contact section 71. An annular clamping groove is formed between the third step 31 and the inner wall of the first section pipe body 10. The end of the first contact section 70 extends to the annular snap groove; a gap 8 is left between the first push ring 5 and the middle section of the first contact section 70. In order to ensure the displacement of the first thrust ring 5, a gap 8 must be left between the first thrust ring 5 and the middle section of the first contact section 70.

As shown in fig. 5, the inner annular wall of the second contact section 71 is provided with a first threaded section 710 and a first smooth section 712, a first limit step 711 is provided between the first threaded section 710 and the first smooth section 712, and the first smooth section 712 is close to the pipe fitting inlet/outlet 18 of the joint pipe body 1. As shown in fig. 6, the second pushing ring 6 is provided with a second smooth section 60, a second threaded section 61 and an operating section 62 on the outer circumferential wall in sequence. The first thread section 710 of the second contact section 71 is matched with the second thread section 61 of the second push ring 6, the depth of the second thread section 61 is smaller than that of the first thread section 710, and a second limit step 63 is arranged between the second thread section 61 and the operation section 62. In order to realize the movement of the second thread segments 61, the first thread segments 710 are left with a margin D for the left-right sliding movement of the second thread segments 61. When the second thread segments 61 move to the position where the second limit steps 63 contact the first limit steps 711, the distance of the margin D is the largest.

As shown in fig. 6 and 7, the first smooth section 712 is matched with the operation section 62, the operation section 62 is provided with a clamping groove 620 and a second clamping tooth 621 which are uniformly distributed, and an opening of the clamping groove 620 faces to the pipe fitting inlet/outlet 18 of the joint pipe body 1. The operating section 62 is adapted to a specific tool to enable the second thrust collar 6 to operate. The depth of the operation section 62 is matched with the depth of the first smooth section, so that the second push ring 6 is positioned in the joint pipe body 1, and the use feeling is good.

The utility model discloses a theory of operation is: first, the second push ring 6 is in a reset state (i.e. the second limit step 63 of the second push ring 6 is in contact with the first limit step 711, and the distance of the margin D is the largest), then, the pipe fitting is inserted from the pipe fitting inlet/outlet 18, the first latch 40 of the retainer ring 4 is in contact with the pipe fitting, and the O-ring is also in contact with the pipe fitting, so that the installation of the pipe fitting is realized. When the pipe fitting is required to be disassembled, a specific tool is matched with the second clamping tooth 621 and the clamping groove 620 on the operation section 62, the tool is rotated, the second push ring 6 is moved leftwards and contacts the first push ring 5, the lower end face 50 of the first push ring is pressed towards the first clamping tooth 40, at the moment, the first clamping tooth 40 is pressed downwards continuously and is separated from the pipe fitting, and therefore the pipe fitting can be taken out smoothly. During the process of taking out the pipe fitting, the hand can not contact with the tool, and the tool and the second push ring 6 can keep a static state mutually. After the pipe fitting is taken out, the second push ring 6 needs to be reset, at the moment, the tool is operated by hand, the tool is reversely rotated, the second push ring 6 moves rightwards until the second step 63 is contacted with the first step 711, the force applied to the first push ring 5 by the second push ring 6 disappears gradually, the first push ring 5 is pushed to reset under the restoring force action of the first latch 40, and finally the tool is dismounted, so that the next installation of the pipe fitting and the pipe joint is facilitated.

Claims (10)

1. A pipe joint convenient to disassemble and assemble comprises a joint pipe body, an O-shaped ring, a sealing fixed ring, a clamping ring, a first push ring and a second push ring, wherein the O-shaped ring, the sealing fixed ring, the clamping ring, the first push ring and the second push ring are sequentially arranged in the joint pipe body; the method is characterized in that: the O-shaped ring, the sealing fixed ring, the clamping ring and the first push ring are sequentially in contact connection, and the first push ring is in contact with or close to the second push ring; the connector pipe body is internally provided with a retaining ring, the retaining ring is sleeved on the outer sides of the first pushing ring and the second pushing ring, and the retaining ring is in threaded connection with the second pushing ring.

2. The pipe joint convenient to disassemble and assemble according to claim 1, wherein: the joint pipe body comprises a first section of pipe body, a second section of pipe body and a third section of pipe body which are connected in sequence; the first section of pipe body corresponds to a first accommodating cavity in the joint pipe body, and the second section of pipe body corresponds to a second accommodating cavity in the joint pipe body; the inner diameter of the first section of pipe body is larger than that of the second section of pipe body, and the inner diameter of the second section of pipe body is larger than that of the third section of pipe body; a first step is arranged between the inner wall of the first section of pipe body and the inner wall of the second section of pipe body, and a second step is arranged between the inner wall of the second section of pipe body and the inner wall of the third section of pipe body; one end of the first section of pipe body, which is opposite to the second section of pipe body, is a pipe fitting inlet and outlet.

3. The pipe joint convenient to disassemble and assemble according to claim 2, wherein: o type circle dress inlay in second step department, the installation of sealing fixed ring inlays in first step department, one side and the sealing fixed ring of O type circle are inconsistent.

4. The pipe joint convenient to disassemble and assemble according to claim 1, wherein: the sealing fixing ring comprises an upper fixing ring end surface and a lower fixing ring end surface, the annular width dimension of the upper fixing ring end surface is smaller than that of the lower fixing ring end surface, and the width of the O-shaped ring is matched with that of the lower fixing ring end surface; the outer ring wall of the sealing fixing ring comprises a first ring-shaped section and a second ring-shaped section, the diameter of the first ring-shaped section is larger than that of the second ring-shaped section, and a third step is arranged between the first ring-shaped section and the second ring-shaped section.

5. The pipe joint convenient to disassemble and assemble according to claim 4, wherein: the clamping ring is attached to the upper end face of the sealing fixing ring, first clamping teeth are uniformly distributed on the inner wall of the clamping ring, the first clamping teeth are distributed in an inclined state, and the free ends of the first clamping teeth incline towards one side where the sealing fixing ring is installed.

6. The pipe joint convenient to disassemble and assemble according to claim 5, wherein: the inner ring wall of the sealing fixing ring is of an inclined structure, and the inclined direction of the inclined structure is consistent with that of the first clamping teeth; the size of the inner diameter of a circle formed by enclosing the free ends of the first clamping teeth and the size of the inner diameter of the O-shaped ring are matched with the outer diameter of the installed pipe fitting; the inner diameter of the O-shaped ring is smaller than the circular inner diameter formed by the free ends of the first clamping teeth in an enclosing mode.

7. The pipe joint convenient to disassemble and assemble according to claim 5, wherein: the first push ring comprises a first push ring upper end surface and a first push ring lower end surface, and the annular width dimension of the first push ring lower end surface is smaller than that of the first push ring upper end surface; the lower end face of the first push ring is in contact with the first latch; the upper end surface of the first push ring is contacted with or close to the second push ring.

8. The pipe joint convenient to disassemble and assemble according to claim 4, wherein: a bending section is arranged at the inlet and outlet of the pipe fitting of the joint pipe body; one end of the retaining ring is abutted against the third step, and the other end of the retaining ring is contacted with the inner wall of the bending section; the inner wall of the retaining ring is divided into a first contact section and a second contact section; an annular clamping groove is formed between the third step and the inner wall of the first section of the pipe body; the end part of the first contact section extends to the annular clamping groove; and a gap is reserved between the first push ring and the middle section of the first contact section.

9. The pipe joint convenient to disassemble and assemble according to claim 8, wherein: a first threaded section and a first smooth section are arranged on the inner annular wall of the second contact section, a first limiting step is arranged between the first threaded section and the first smooth section, and the first smooth section is close to the pipe fitting inlet and outlet of the joint pipe body; a second smooth section, a second thread section and an operation section are sequentially arranged on the outer ring wall of the second push ring; a first thread section of the second contact section is matched with a second thread section of the second push ring, the depth of the second thread section is smaller than that of the first thread section, and a left-right slip allowance of the second thread section is reserved on the first thread section; and a second limiting step is arranged between the second thread section and the operation section.

10. The pipe joint convenient to disassemble and assemble according to claim 9, wherein: the first smooth section is matched with the operation section, the operation section is provided with second clamping teeth and clamping grooves which are uniformly distributed, and the opening of each clamping groove faces to the pipe fitting inlet and outlet of the joint pipe body.

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