Clamping assembly and insulation quick connector for coating, charging and leakage detection

Abstract

The utility model provides a clamping assembly and a coating, filling and leakage detecting insulation quick connector, the clamping assembly comprises a first support ring, a second support ring and an elastic clamping piece, and the elastic clamping piece comprises an annular clamping main body and a plurality of elastic clamping pieces. The coating, filling and leakage detecting insulation quick connector comprises a connector body, an insulation shell, a clamping assembly and an insulation pushing assembly, a pull rod is arranged at the head of the connector body, a sliding seat is arranged outside the pull rod in a sliding mode, a first movable cavity is formed among the insulation pushing assembly, the pull rod, the sliding seat and the insulation shell, and a first elastic piece is arranged in the first movable cavity. And a wrench is arranged outside the joint main body. According to the clamping assembly, the first supporting ring and the second supporting ring draw close to each other, so that the elastic clamping pieces contract to clamp the pipe fitting, assembling is very convenient and fast, the structure is simple and compact, and the manufacturing cost is low. The pipe fitting leakage detection device has good insulation sealing performance, can perform leakage detection, filling and coating on pipe fittings, and meets the use requirements of customers.

Description

Technical Field

[0001] This utility model relates to a clamping component and a quick-connector for coating, filling, leak detection, and insulation. Background Technology

[0002] In actual production, for some products that require airtight leak testing, a quick-connect leak tester is usually connected to the fittings on the product to be tested. Then, a gas source is connected to the quick-connect leak tester, and gas is introduced into the product to be tested. The product is then placed in water to observe whether there are any bubbles, thereby determining whether the product to be tested has a leak. After the leak test is completed, the product to be tested needs to be placed in the coating solution and coated using the principle of an electrolytic cell.

[0003] Leak detection quick couplings typically clamp the pipe fitting using a clamping assembly. Existing clamping assemblies include a first compression sleeve, jaws, and a second compression sleeve. The jaws consist of multiple arc-shaped jaw pieces arranged in a ring. The inner walls of the jaws are equipped with elastic springs that allow the jaw pieces to open and close together. During installation, because the jaw pieces are movable, the elastic force of the springs must be overcome before the jaw pieces can be arranged in a ring and inserted between the first and second compression sleeves. This installation force is difficult to control, making assembly inconvenient and resulting in high manufacturing costs. Summary of the Invention

[0004] The purpose of this invention is to provide a clamping assembly and a quick-connect coupling for coating, filling, leak detection, and insulation, which can solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A clamping assembly includes a first support ring, a second support ring, and an elastic clamping member disposed between the first and second support rings. The first and second support rings are provided with clamping through holes for pipes to pass through. The elastic clamping member includes an annular clamping body and a plurality of elastic clips extending obliquely from the inner side of the annular clamping body. The plurality of elastic clips are evenly spaced. The annular clamping body and the elastic clips form a conical ring shape. The end of the elastic clip away from the annular clamping body contracts inward and extends into the clamping through hole. The first and second support rings move closer to each other, thereby causing the elastic clips to contract and clamp the pipes.

[0006] Preferably, the upper end of the first support ring is recessed with a placement groove for placing the elastic clamping member. The bottom surface of the placement groove is conical with a higher inner end and a lower outer end. The angle between the bottom surface of the placement groove and the axis of the clamping through hole is greater than the angle between the elastic clamping piece and the axis of the clamping through hole.

[0007] Preferably, the lower end of the second support ring is provided with a support portion that supports the elastic clip. The lower end face of the support portion is conical with a higher inner end and a lower outer end. The angle between the lower end face of the support portion and the axis of the clamping through hole is greater than the angle between the elastic clip and the axis of the clamping through hole.

[0008] Preferably, the angle between the elastic clip and the axis of the clamping through hole is 45°-85°.

[0009] Preferably, the number of elastic clips is 3-18.

[0010] This utility model also provides a quick-connect insulating connector for coating, filling, and leak detection, comprising a connector body and a hollow insulating shell. The head of the insulating shell has an inwardly contracting blocking portion, in which an insertion port for inserting a pipe is formed. A clamping assembly for clamping the pipe is provided on the inner side of the blocking portion. This clamping assembly is the aforementioned clamping assembly. A first insulating sealing ring is provided between the first support ring of the clamping assembly and the blocking portion. The head of the connector body has a pull rod with a through hole. A sliding seat is slidably provided on the outside of the pull rod, and the inner wall of the sliding seat is slidably sealed with the outer wall of the pull rod. The sliding seat is connected to the tail of the insulating shell. The head of the pull rod extends into the insulating shell and has an insulating pushing assembly. The outer wall of the insulating pushing assembly is slidably sealed with the inner wall of the insulating shell. The insulating pushing assembly has a connection between the pull rod through hole and... The clamping through-hole has a push-out through-hole. A first movable cavity is formed between the insulating push-out assembly, the pull rod, the sliding seat, and the insulating outer shell. A first elastic element is provided in the first movable cavity. The first elastic element is supported between the insulating push-out assembly and the sliding seat, so that the head of the insulating push-out assembly pushes against the second support ring of the clamping assembly, thereby causing the first support ring and the second support ring to move closer to each other, and causing the elastic clamping piece to contract and clamp the pipe fitting. A wrench is provided on the outside of the connector body. The two sides of the wrench are rotatably connected to the two sides of the connector body. Support protrusions are provided on the two sides of the wrench. The support protrusions can push against the sliding seat. When the wrench is pressed, the wrench rotates relative to the connector body. The support protrusions rotate accordingly and push against the sliding seat. The sliding seat moves away from the connector body and drives the insulating outer shell and the clamping assembly away from the insulating push-out assembly, thereby causing the clamping assembly to release the pipe fitting.

[0011] Preferably, the insulating push assembly includes an insulating top block, the head of which has a second movable cavity with an opening on one side, an insulating support block slidably disposed in the second movable cavity, the outer wall of the insulating support block being slidably sealed to the inner wall of the insulating top block, a second elastic element being disposed between the inner side of the insulating support block and the insulating top block, a second insulating sealing gasket being recessed and installed on the outer side of the insulating support block, and the push through hole penetrating the tail of the insulating top block, the insulating support block, and the second insulating sealing gasket, with the second movable cavity communicating with the push through hole.

[0012] Preferably, a slot is provided on the inner wall of the outer side of the second movable cavity, and an opening retaining ring is installed in the slot to block the outer side of the insulating support block. A maintenance hole communicating with the slot is provided radially through the side wall of the head of the insulating top block.

[0013] Preferably, the push-through hole and the first movable cavity are connected by a connecting hole.

[0014] Preferably, the head of the pull rod is inserted into the tail of the insulating top block and fixed to the insulating top block by a fixing pin.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The clamping assembly of this utility model clamps the pipe fitting by bringing the first and second support rings closer together, thereby causing the elastic clamping piece to contract. Assembly is very convenient and quick, and the structure is simple, compact, and low in manufacturing cost. 2. This utility model, through the setting of the insulating shell, the first insulating sealing gasket, and the insulating pushing assembly, has excellent insulation and sealing performance. It can not only be used for leak detection and filling of the pipe fitting, but also effectively prevent other metal parts of this utility model and some pipe fittings located within this utility model from being coated during the coating process, meeting customer needs. 3. This utility model, through the cooperation of the wrench and the first elastic element, is very quick and labor-saving to operate. If parts are worn, the presence of the first elastic element allows for real-time adjustment of the position of the pull rod and the insulating pushing assembly, resulting in a more secure clamping of the pipe fitting. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the clamping component of this utility model.

[0017] Figure 2 This is a perspective view of the elastic clamping component of this utility model.

[0018] Figure 3 This is a perspective view of the coating, filling, leak detection, and insulating quick connector of this utility model.

[0019] Figure 4 This is a cross-sectional view of the coating, filling, leak detection, and insulating quick connector of this utility model.

[0020] Figure 5 This is a cross-sectional view of the jacking assembly of this utility model. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] like Figure 1 , Figure 2 As shown, this utility model provides a clamping assembly, including a first support ring 1, a second support ring 2, and an elastic clamping member disposed between the first support ring 1 and the second support ring 2. The first support ring 1 and the second support ring 2 are provided with clamping through holes 3 for pipes to pass through. The elastic clamping member includes an annular clamping body 4 and a plurality of elastic clamping pieces 5 extending obliquely from the inner side of the annular clamping body 4. The plurality of elastic clamping pieces 5 are evenly spaced. The annular clamping body 4 and the elastic clamping pieces 5 form a conical ring shape. The end of the elastic clamping piece 5 away from the annular clamping body 4 retracts inward and extends into the clamping through hole 3. The first support ring 1 and the second support ring 2 move closer to each other, thereby causing the elastic clamping piece 5 to retract and clamp the pipe.

[0023] This invention is installed in a quick connector for clamping pipe fittings. When inserting the pipe fitting, it passes sequentially through the first support ring 1, the elastic clamping piece, and the second support ring 2, i.e., the pipe fitting is placed in the clamping through hole 3. Then, the first support ring 1 and the second support ring 2 are brought together, thereby pressing the elastic clamping piece 5. The elastic clamping piece 5 deforms and contracts inward, thus clamping the pipe fitting. After the first support ring 1 and the second support ring 2 are moved away from each other, the elastic clamping piece 5 is released. The elastic clamping piece 5 returns to its original position and opens outward, thus releasing the pipe fitting, which can then be removed from the clamping through hole 3. During assembly, this invention only requires placement between the first support ring 1 and the second support ring 2, ensuring that the direction of the elastic clamping piece 5 (i.e., the tilt direction of the elastic clamping piece 5) is the same as the insertion direction of the pipe fitting. Assembly is very convenient and quick, and the structure is simple, compact, and low in manufacturing cost.

[0024] Preferably, the upper end of the first support ring 1 is recessed with a placement groove 6 for placing the elastic clamping member. The bottom surface of the placement groove 6 is conical with a higher inner end and a lower outer end. The angle between the bottom surface of the placement groove 6 and the axis of the clamping through hole 3 is greater than the angle between the elastic clamping piece 5 and the axis of the clamping through hole 3. The lower end of the second support ring 2 is protruding with a support portion 7 supporting the elastic clamping piece 5. The lower end surface of the support portion 7 is conical with a higher inner end and a lower outer end. The angle between the lower end surface of the support portion 7 and the axis of the clamping through hole 3 is greater than the angle between the elastic clamping piece 7 and the axis of the clamping through hole 3. The angle between the elastic clamping piece 5 and the axis of the clamping through hole 3 is 45°-85°. The annular clamping body 4 is placed in the placement groove 6. One side of the elastic clamping piece 5 is opposite to the bottom surface of the placement groove 6, and the other side of the elastic clamping piece 5 is opposite to the lower end surface of the support part 7. The first support ring 1 and the second support ring 2 are close to each other. The elastic clamping piece 5 is clamped between the placement groove 6 and the support part 7 and undergoes contraction deformation to clamp the pipe fitting. The bottom surface of the placement groove 6 is conical to prevent the elastic clamping piece 5 from excessively deforming. The lower end surface of the support part 7 is conical to force the elastic clamping piece 5 to deform, ensuring a reliable fit.

[0025] Preferably, the number of elastic clips 5 is 3-18, ensuring reliable clamping.

[0026] This utility model also provides a quick-connector for coating, filling, leak detection, and insulation, including a connector body 8 and a hollow insulating shell 9. The head of the insulating shell 9 has an inwardly tapering blocking portion 10, in which an insertion port 11 for inserting a pipe fitting is formed. The inner side of the blocking portion 10 is provided with a clamping assembly for clamping the pipe fitting. The clamping assembly is the clamping assembly described above. A first insulating sealing ring 12 is provided between the first support ring 1 of the clamping assembly and the blocking portion 10. The head of the connector body 8 is provided with... A pull rod 13 has a pull rod through hole 14. A sliding seat 15 is slidably mounted on the outside of the pull rod 13. The inner wall of the sliding seat 15 is slidably sealed with the outer wall of the pull rod 13. The sliding seat 15 is connected to the tail of the insulating shell 9. The head of the pull rod 13 extends into the insulating shell 9 and is provided with an insulating push assembly. The outer wall of the insulating push assembly is slidably sealed with the inner wall of the insulating shell 9. The insulating push assembly has a push through hole 1 that connects the pull rod through hole 14 and the clamping through hole 3. 6. A first movable cavity 17 is formed between the insulating push assembly, the pull rod 13, the sliding seat 15, and the insulating outer shell 9. A first elastic element 18, preferably a spring, is provided in this first movable cavity 17. The first elastic element 18 is supported between the insulating push assembly and the sliding seat 15, causing the head of the insulating push assembly to push against the second support ring 2 of the clamping assembly. This causes the first support ring 1 and the second support ring 2 to move closer together, thereby causing the elastic clamping piece 5 to contract and clamp the pipe fitting. The connector body 8... An external wrench 19 is provided, with its two sides rotatably connected to the two sides of the connector body 8. Support protrusions 20 are provided on both sides of the wrench 19, which can push against the sliding seat 15. When the wrench 19 is pressed, it rotates relative to the connector body 8, and the support protrusions 20 rotate accordingly and push against the sliding seat 15. The sliding seat 15 moves away from the connector body 8 and drives the insulating shell 9 and the clamping assembly away from the insulating pushing assembly, thereby causing the clamping assembly to release the pipe fitting.

[0027] In use, pressing the wrench 19 brings it close to the insulating shell 9, causing the wrench 19 to rotate relative to the connector body 8. The support protrusion 20 also rotates and presses against the sliding seat 15, thus moving the sliding seat 15 away from the connector body 8 and causing the insulating shell 9 and clamping assembly to move away from the insulating push assembly. The clamping assembly is in a non-clamping state, meaning the first support ring 1 and the second support ring 3 do not compress the elastic clamping piece 5, and the elastic clamping piece 5 is in an open state. The first elastic element 18 is compressed. Then, the fitting is inserted into the clamping assembly through the insertion port 11 of the insulating shell 9. When the wrench 19 is released, the first elastic element 18 causes the sliding seat 15 to approach the connector body 8 and drives the insulating shell 9 and clamping assembly to reset. The insulating push assembly pushes against the clamping assembly again and clamps the pipe fitting, thus insulating and sealing the part of the pipe fitting that extends into the insulating shell 9. That is, the first support ring and the second support ring move closer to each other, thereby pressing the elastic clamp 5. The elastic clamp 5 deforms and contracts inward, thereby clamping the pipe fitting in the clamping channel 3. The operation is very convenient, quick and labor-saving. Moreover, the outer diameter of the pipe fitting is sealed by the first insulating sealing gasket 12, resulting in a good sealing effect. Then, the tail of the connector body 8 is connected to a gas source to inject gas into the pipe. After gas injection, it can be placed in water to observe for bubbles, thereby determining whether the product under inspection has a leak, thus completing the leak detection. If there is no leak, the pipe and this utility model are placed together in the coating solution and coated using the principle of an electrolytic cell. Because this utility model has certain sealing and insulation properties, it can effectively prevent other metal parts of this utility model (such as the wrench 19, pull rod 13, connector body 8, sliding seat 15, etc.) and some pipe parts located within this utility model from being coated during the coating process. After coating is completed, by pressing the wrench 19 again, the sliding seat 15 is moved away from the connector body 8, thereby moving the insulating shell 7 and the clamping assembly away from the insulating push assembly. The clamping assembly is in a non-clamping state, thus releasing the pipe, which can then be pulled out of the clamping assembly. After long-term use, if the parts wear out, the presence of the first elastic element 18 can adjust the position of the insulating push assembly in the insulating shell 9 in real time, making the pipe clamping more secure.

[0028] Preferably, the insulating push assembly includes an insulating top block 21. The head of the insulating top block 21 has a second movable cavity 22 with an opening on one side. An insulating support block 23 is slidably disposed in the second movable cavity 22. The outer wall of the insulating support block 23 is slidably sealed to the inner wall of the insulating top block 21. A second elastic element 24, preferably a spring, is disposed between the inner side of the insulating support block 23 and the insulating top block 23. A second insulating sealing washer 25 is recessed and installed on the outer side of the insulating support block 23. The push through hole 16 passes through the tail of the insulating top block 21, the insulating support block 23, and the second insulating sealing washer 25. The second movable cavity 22 communicates with the push through hole 16. When a pipe is inserted, the pipe contacts the second insulating sealing washer 25, which seals the end face of the pipe, resulting in a good sealing effect. Since the second insulating sealing gasket 22 is set in the insulating support block 23, and the second elastic element 24 is supported on the insulating support block 23, the second elastic element 24 can play a buffering role to prevent the pipe from directly hitting the insulating top block 21, making the operation very comfortable.

[0029] Preferably, a slot 26 is formed on the inner wall of the outer side of the second movable cavity 22. An open retaining ring 27 is installed in the slot 26 to block the outer side of the insulating support block 23. A maintenance hole 28 communicating with the slot 26 is radially penetrating the side wall of the head of the insulating top block 23. The open retaining ring 27 can prevent the insulating support block 23 from coming out of the insulating top block 21. When it is necessary to remove the insulating support block 23 from the insulating top block 21, a pin can be inserted through the maintenance hole 28. The pin causes the open retaining ring 27 to retract and come out of the slot 26. Without the restriction of the open retaining ring 27, the insulating support block 23 can be removed from the insulating top block 21.

[0030] Preferably, the push-through hole 16 and the first movable cavity 17 are connected via a connecting hole 29. The connecting hole 29 is located on the pull rod 13 in the first movable cavity 17, or it is located in the insulating top block 21 and extends through both the insulating top block 21 and the pull rod 13. The position of the connecting hole 29 only needs to ensure communication between the push-through hole 16 and the first movable cavity 17. When the clamping assembly clamps the pipe, air is injected into the pipe. The gas can enter the first movable cavity 17 through the connecting hole 29. The resulting air pressure in the first movable cavity 17 pushes the sliding seat 15 closer to the connector body 8, which in turn pushes the insulating top block 21 closer to the clamping assembly, thus helping the clamping assembly firmly clamp the pipe and making the clamping more reliable. When releasing the pipe, the inflation stops, the air pressure in the first movable cavity 17 is lost, and the wrench 19 can be operated normally to release the pipe using the clamping assembly.

[0031] Preferably, the head of the pull rod 13 is inserted into the tail of the insulating top block 21 and fixed to the insulating top block 21 by the fixing pin 30, which makes installation convenient.

[0032] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A clamping assembly, characterized in that: The device includes a first support ring, a second support ring, and an elastic clamping member disposed between the first and second support rings. The first and second support rings have clamping through holes for the pipe to pass through. The elastic clamping member includes an annular clamping body and a plurality of elastic clips extending obliquely from the inner side of the annular clamping body. The plurality of elastic clips are evenly spaced. The annular clamping body and the elastic clips form a conical ring shape. The end of the elastic clip away from the annular clamping body retracts inward and extends into the clamping through hole. The first and second support rings move closer to each other, causing the elastic clips to retract and clamp the pipe.

2. The clamping assembly according to claim 1, characterized in that: The upper end of the first support ring is recessed with a placement groove for placing the elastic clamping member. The bottom surface of the placement groove is conical with a higher inner end and a lower outer end. The angle between the bottom surface of the placement groove and the axis of the clamping through hole is greater than the angle between the elastic clamping piece and the axis of the clamping through hole.

3. The clamping assembly according to claim 1, characterized in that: The lower end of the second support ring is provided with a support portion that supports the elastic clip. The lower end face of the support portion is conical with a higher inner end and a lower outer end. The angle between the lower end face of the support portion and the axis of the clamping through hole is greater than the angle between the elastic clip and the axis of the clamping through hole.

4. The clamping assembly according to any one of claims 1-3, characterized in that: The angle between the elastic clip and the axis of the clamping through hole is 45°-85°.

5. The clamping assembly according to any one of claims 1-3, characterized in that: The number of elastic clips is 3-18.

6. A quick-connector for coating, filling, leak detection, and insulation, characterized in that: The device includes a connector body and a hollow insulating shell. The head of the insulating shell has an inwardly tapering blocking portion with an insertion port for inserting a pipe fitting. The inner side of the blocking portion is provided with a clamping assembly for clamping the pipe fitting. This clamping assembly is the clamping assembly described in any one of claims 1-5. A first insulating sealing ring is provided between the first support ring of the clamping assembly and the blocking portion. The head of the connector body has a pull rod with a through hole. A sliding seat is slidably provided outside the pull rod, and the inner wall of the sliding seat is slidably sealed to the outer wall of the pull rod. The sliding seat is connected to the tail of the insulating shell. The head of the pull rod extends into the insulating shell and has an insulating pushing assembly. The outer wall of the insulating pushing assembly is slidably sealed to the inner wall of the insulating shell. The insulating pushing assembly has a pushing mechanism connecting the pull rod through hole and the clamping through hole. A through hole is provided, and a first movable cavity is formed between the insulating push assembly, the pull rod, the sliding seat, and the insulating shell. A first elastic element is provided in the first movable cavity. The first elastic element is supported between the insulating push assembly and the sliding seat, so that the head of the insulating push assembly pushes against the second support ring of the clamping assembly, thereby causing the first support ring and the second support ring to move closer to each other, and the elastic clamping piece to contract and clamp the pipe fitting. A wrench is provided on the outside of the connector body. The two sides of the wrench are rotatably connected to the two sides of the connector body. The two sides of the wrench are provided with support protrusions, which can push against the sliding seat. When the wrench is pressed, the wrench rotates relative to the connector body. The support protrusions rotate accordingly and push against the sliding seat. The sliding seat moves away from the connector body and drives the insulating shell and the clamping assembly away from the insulating push assembly, thereby causing the clamping assembly to release the pipe fitting.

7. The quick-connector for coating, filling, leak detection, and insulation according to claim 6, characterized in that: The insulating push assembly includes an insulating top block. The head of the insulating top block has a second movable cavity with an opening on one side. An insulating support block is slidably disposed in the second movable cavity. The outer wall of the insulating support block is slidably sealed to the inner wall of the insulating top block. A second elastic element is disposed between the inner side of the insulating support block and the insulating top block. A second insulating sealing gasket is recessed and installed on the outer side of the insulating support block. The push through hole is passed through the tail of the insulating top block, the insulating support block, and the second insulating sealing gasket. The second movable cavity is connected to the push through hole.

8. The quick-connector for coating, filling, leak detection, and insulation according to claim 7, characterized in that: A slot is provided on the inner wall of the outer side of the second movable cavity. An open retaining ring is installed in the slot to block the outer side of the insulating support block. A maintenance hole communicating with the slot is radially penetrating the side wall of the head of the insulating top block.

9. The quick-connector for coating, filling, leak detection, and insulation according to claim 7, characterized in that: The push-through hole and the first movable cavity are connected by a connecting hole.

10. The coating-filled leak-detection insulating quick connector according to any one of claims 7-9, characterized in that: The head of the pull rod is inserted into the tail of the insulating top block and fixed to the insulating top block by a fixing pin.

Images