Quick connector with pressure relief function

Abstract

The utility model relates to the technical field of quick connectors, and discloses a quick connector with a pressure relief function, which comprises a first connector and a second connector, the bottom end of the second connector is arranged in the first connector, the top end of the first connector is provided with a connecting assembly, and the connecting assembly is used for connecting the first connector with the second connector. Sealing blocks I are slidably connected to the interiors of the connector I and the connector II, two pressure relief holes and a through hole are formed in each sealing block I, a moving block is slidably connected to the inner side of the bottom of each sealing block I, a sealing block II is mounted at the top end of each moving block, and each sealing block II is arranged in the corresponding sealing block I; the connecting assembly comprises a plurality of evenly-distributed clamping plates. According to the utility model, the air pressure in the pipeline can be relieved through the pressure relief hole, so that the first joint and the second joint can be conveniently connected with each other, and the second joint is clamped and fixed by the plurality of clamping plates, so that the second joint is fixed in the first joint.

Description

TECHNICAL FIELD

[0001] The utility model relates to quick coupling technical field especially relates to a quick coupling with pressure relief function. BACKGROUND

[0002] In industrial production, fluid conveying system often needs to be connected and disconnected quickly in order to facilitate the maintenance, repair and replacement of equipment. For example, in the automobile manufacturing industry, production lines need to frequently change parts and tools, and using quick couplings with pressure relief function can quickly connect and disconnect hydraulic lines and pneumatic lines, reduce equipment downtime and improve production efficiency.

[0003] When the pipeline needs to be connected, the male head and the female head of the quick coupling are brought close to each other. The male head has a movable valve core, and the female head has a corresponding sealing structure and receiving cavity inside. As the male head is inserted into the female head, the valve core of the male head is pushed backward by the internal structure of the female head, opening the fluid passage. At the same time, the sealing structure inside the female head tightly fits the surface of the male head, forming a reliable seal to prevent fluid leakage. At this time, the fluid can flow normally in the pipeline;

[0004] The existing quick couplings lack pressure relief function. In the absence of pressure relief, the valve core inside the quick coupling is not easy to move due to the pressure in the pipeline, making it difficult to connect the quick coupling. Therefore, a quick coupling with pressure relief function is proposed to solve the above problems. SUMMARY

[0005] In order to make up for the above shortcomings, the utility model provides a quick coupling with pressure relief function, aiming at improving the problem that the pressure in the pipeline makes it difficult to connect the quick coupling in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A quick coupling with pressure relief function, comprising a connector one and a connector two, the bottom end of the connector two is arranged inside the connector one, the top end of the connector one is provided with a connecting assembly, the connecting assembly is used to connect the connector one and the connector two with each other, the connector one and the connector two are both internally connected with a sealing block one, the sealing block one is internally provided with two pressure relief holes and a through hole respectively, the bottom inner side of the sealing block one is slidably connected with a moving block, the top end of the moving block is installed with a sealing block two, the sealing block two is arranged inside the sealing block one;

[0008] As a further description of the above technical scheme:

[0009] The connecting assembly comprises a plurality of uniformly distributed clamping plates, the clamping plates are installed at one end of the first joint, the clamping plates are arranged on the outer periphery of the second joint, a moving sleeve is threadedly connected to the outer periphery of the first joint, and the moving sleeve abuts against the outer periphery of the clamping plates.

[0010] As a further description of the above technical solution:

[0011] The inner part of the sealing block one is fixedly connected with a mounting plate, a moving shaft is slidably connected in the middle part of the mounting plate, the bottom end of the moving shaft is fixedly connected to the top side of the sealing block two, a spring two is sleeved on the outer periphery of the moving shaft, the bottom end of the spring two abuts against the top side of the sealing block two, and the top end of the spring two abuts against the bottom side of the mounting plate.

[0012] As a further description of the above technical solution:

[0013] The top end of the moving shaft is fixedly connected with a limiting plate, and the limiting plate is arranged on the top of the mounting plate.

[0014] As a further description of the above technical solution:

[0015] The first joint and the second joint are internally provided with mounting racks, the mounting racks are provided with springs one on the side opposite to the sealing block one, and the two ends of the spring one are connected with the mounting rack and the sealing block one respectively.

[0016] As a further description of the above technical solution:

[0017] The inner side of the clamping plate is provided with a rubber pad, and the rubber pad abuts against the outer periphery of the second joint.

[0018] As a further description of the above technical solution:

[0019] The outer periphery of the clamping plate is fixedly connected with a stop block, and the stop block is arranged on the inner top side of the moving sleeve.

[0020] As a further description of the above technical solution:

[0021] The outer periphery of the sealing block one is fixedly connected with a sealing ring.

[0022] The utility model has the advantages of the following beneficial effects:

[0023] 1、two sealing blocks one respectively seal the first joint and the second joint, when the second joint is inserted into the first joint, the two sealing blocks one contact each other and push the moving block to move to the inside of the sealing block one, the moving block can drive the sealing block two to move during the moving process, so that the sealing block two no longer seals the pressure relief hole, and then the air pressure in the pipeline can be relieved through the pressure relief hole, so as to facilitate the mutual connection of the first joint and the second joint.

[0024] 2、 The utility model discloses, joint two inserts joint one inside rotates and moves sleeve to make the sleeve move to a plurality of clamping plates, and the sleeve can push a plurality of clamping plates to rotate to joint two to make a plurality of clamping plates hold and fix joint two to fix joint two in joint one inside. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A kind of quick coupling with pressure relief function is provided for the utility model three-dimensional schematic view;

[0026] Figure 2 The structure schematic view of plug two of a kind of quick coupling with pressure relief function is provided for the utility model;

[0027] Figure 3 The structure schematic view of sealing block one of a kind of quick coupling with pressure relief function is provided for the utility model;

[0028] Figure 4 The structure schematic view of clamping plate of a kind of quick coupling with pressure relief function is provided for the utility model.

[0029] Legend:

[0030] 1, moving sleeve;2, joint one;3, joint two;4, mounting frame;5, spring one;6, sealing ring;7, sealing block one;8, mounting plate;9, spring two;10, sealing block two;11, moving block;12, moving shaft;13, limit plate;14, stopper;15, clamping plate;16, rubber pad;17, pressure relief hole;18, perforation. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0032] Reference Figures 1-3The utility model provides an embodiment: a quick coupling with pressure relief function, including joint one 2 and joint two 3, joint two 3 bottom end setting in joint one 2 inside, and joint one 2 and joint two 3 inside all slidingly connected with sealing block one 7, sealing block one 7 outer periphery fixedly connected with sealing ring 6, two sealing block one 7 are used to seal joint one 2 and joint two 3 respectively, install sealing ring 6 can enhance the sealing performance of sealing block one 7, and joint one 2 and joint two 3 inside all are installed with mounting bracket 4, and mounting bracket 4 is fixed in joint one 2 and joint two 3 inside and is used to install spring one 5, and mounting bracket 4 and sealing block one 7 opposite side are provided with spring one 5, and spring one 5 both ends are connected with mounting bracket 4 and sealing block one 7 respectively, and spring one 5 and mounting bracket 4 and sealing block one 7 fixed connection can push sealing block one 7 sealing joint one 2 and joint two 3, and sealing block one 7 inside is respectively provided with two pressure relief hole 17 and perforation 18, and sets up pressure relief hole 17 and perforation 18 and is used for pipeline pressure relief, and sealing block one 7 bottom inboard slidingly connected moving block 11, and moving block 11 can drive sealing block two 10 to move, and moving block 11 top end is installed with sealing block two 10, and sealing block two 10 sets up in sealing block one 7 inside, and sealing block two 10 is used to plug pressure relief hole 17 in sealing block one 7 inside and slides, and sealing block two 10 moves and then no longer plugs pressure relief hole 17, and sealing block one 7 inside fixedly connected with mounting plate 8, and mounting plate 8 is used to install moving shaft 12, and mounting plate 8 middle part slidingly connected with moving shaft 12, and moving shaft 12 plays the role of supporting spring two 9, prevents spring two 9 from being pressed and bending deformation, and moving shaft 12 top end fixedly connected with limit plate 13, and limit plate 13 sets up in mounting plate 8 top, and moving shaft 12 bottom end is fixedly connected in sealing block two 10 top side, and installs limit plate 13 and can prevent moving shaft 12 and mounting plate 8 from separating, and moving shaft 12 outer periphery is equipped with spring two 9, and spring two 9 bottom end abuts at sealing block two 10 top side, and spring two 9 top end abuts at mounting plate 8 bottom side, and spring two 9 is used to push sealing block two 10 and seal pressure relief hole 17.

[0033] Referring to Figure 1 , Figure 2 and Figure 4A connecting component is provided at the top of connector 2 to connect connector 2 and connector 3. The connecting component includes multiple evenly distributed clamping plates 15. The clamping plates 15 are installed at the top of connector 2 and are located on the outer periphery of connector 3. The clamping plates 15 are made of elastic metal and can be bent. The multiple clamping plates 15 can clamp and fix connector 3. A rubber pad 16 is installed on the inner side of the clamping plate 15 and abuts against the outer periphery of connector 3. The rubber pad 16 can increase the friction between the clamping plate 15 and connector 3. A movable sleeve 1 is threadedly connected to the outer periphery of connector 2. The movable sleeve 1 abuts against the outer periphery of the clamping plate 15. The movable sleeve 1 moves towards the clamping plate 15 and can push the multiple clamping plates 15 to rotate towards connector 3, thereby clamping and fixing connector 3. A stop block 14 is fixedly connected to the outer periphery of the clamping plate 15. The stop block 14 is located on the top inner side of the movable sleeve 1 and can restrict the movement of the movable sleeve 1.

[0034] Working principle: When using this connector, connect connector 1 (2) and connector 2 (3) to the pipe respectively. Then, insert connector 2 (3) into connector 1 (2). When connector 2 (3) is inserted into connector 1 (2), the sealing block 1 (7) inside connector 2 (3) and connector 1 (2) comes into contact with each other, thereby squeezing the moving block 11 inside the two sealing blocks 1 (7). After being squeezed, the two moving blocks 11 are retracted into the two sealing blocks 1 (7). During the movement of the moving block 11, it pushes the sealing block 2 (10) to move, so that the sealing block 2 (10) no longer seals the pressure relief hole 17. The air pressure inside the pipe can then be discharged through the perforation 18 and the pressure relief hole 17. After the air pressure inside the pipe decreases, the two sealing blocks 1 (7) can easily return to the inside of connector 1 (2) and connector 2 (3), thereby connecting connector 1 (2) and connector 2 (3).

[0035] After connector 2 3 is inserted into connector 1 2, the rotating sleeve 1 is rotated to move the sleeve 1 toward multiple clamping plates 15. The sleeve 1 can push the multiple clamping plates 15 to rotate toward connector 2 3 and clamp and fix connector 2 3 with the multiple clamping plates 15, thereby fixing connector 2 3 inside connector 1 2 and completing the quick connection between connector 1 2 and connector 2 3.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick coupling with pressure relief function, comprising a coupling one (2) and a coupling two (3), characterized in that: The bottom end of the joint two (3) is arranged inside the joint one (2), the top end of the joint one (2) is provided with a connecting assembly for connecting the joint one (2) and the joint two (3) with each other, the joint one (2) and the joint two (3) are both slidably connected with a sealing block one (7), the inside of the sealing block one (7) is respectively provided with two pressure relief holes (17) and a through hole (18), the bottom inside of the sealing block one (7) is slidably connected with a moving block (11), the top end of the moving block (11) is installed with a sealing block two (10), and the sealing block two (10) is arranged inside the sealing block one (7).

2. A quick coupling with pressure relief according to claim 1, characterized in that: The connecting assembly comprises a plurality of evenly distributed clamping plates (15), the clamping plates (15) are installed at the top end of the joint one (2), the clamping plates (15) are arranged on the outer periphery of the joint two (3), the outer periphery of the joint one (2) is threadedly connected with a moving sleeve (1), and the moving sleeve (1) abuts against the outer periphery of the clamping plate (15).

3. The quick coupling with pressure relief function according to claim 1, characterized in that: The inside of the sealing block one (7) is fixedly connected with a mounting plate (8), the middle of the mounting plate (8) is slidably connected with a moving shaft (12), the bottom end of the moving shaft (12) is fixedly connected to the top side of the sealing block two (10), the outer periphery of the moving shaft (12) is sleeved with a spring two (9), the bottom end of the spring two (9) abuts against the top side of the sealing block two (10), and the top end of the spring two (9) abuts against the bottom side of the mounting plate (8).

4. A quick coupling with pressure relief according to claim 3, characterized in that: The top end of the moving shaft (12) is fixedly connected with a limiting plate (13), and the limiting plate (13) is arranged on the top of the mounting plate (8).

5. The quick coupling with pressure relief function according to claim 1, characterized in that: The inside of the sealing block one (7) is fixedly connected with a mounting plate (8), the middle of the mounting plate (8) is slidably connected with a moving shaft (12), the bottom end of the moving shaft (12) is fixedly connected to the top side of the sealing block two (10), the outer periphery of the moving shaft (12) is sleeved with a spring two (9), the bottom end of the spring two (9) abuts against the top side of the sealing block two (10), and the top end of the spring two (9) abuts against the bottom side of the mounting plate (8).

6. A quick coupling with pressure relief according to claim 2, characterized in that: The inside of the sealing block one (7) is fixedly connected with a mounting plate (8), the middle of the mounting plate (8) is slidably connected with a moving shaft (12), the bottom end of the moving shaft (12) is fixedly connected to the top side of the sealing block two (10), the outer periphery of the moving shaft (12) is sleeved with a spring two (9), the bottom end of the spring two (9) abuts against the top side of the sealing block two (10), and the top end of the spring two (9) abuts against the bottom side of the mounting plate (8).

7. A quick coupling with pressure relief according to claim 2, characterized in that: The inside of the sealing block one (7) is fixedly connected with a mounting plate (8), the middle of the mounting plate (8) is slidably connected with a moving shaft (12), the bottom end of the moving shaft (12) is fixedly connected to the top side of the sealing block two (10), the outer periphery of the moving shaft (12) is sleeved with a spring two (9), the bottom end of the spring two (9) abuts against the top side of the sealing block two (10), and the top end of the spring two (9) abuts against the bottom side of the mounting plate (8).

8. The quick coupling with pressure relief function according to claim 1, characterized in that: The inside of the sealing block one (7) is fixedly connected with a mounting plate (8), the middle of the mounting plate (8) is slidably connected with a moving shaft (12), the bottom end of the moving shaft (12) is fixedly connected to the top side of the sealing block two (10), the outer periphery of the moving shaft (12) is sleeved with a spring two (9), the bottom end of the spring two (9) abuts against the top side of the sealing block two (10), and the top end of the spring two (9) abuts against the bottom side of the mounting plate (8).

Images