Miniature quick connector for cam type anti-explosion valve

Abstract

The utility model discloses a miniature quick connector for a cam type explosion-proof valve. The miniature quick connector comprises a main body assembly, a sealing assembly and a cam handle assembly. The main body assembly is provided with an accommodating cavity, a coaxial hole and two groups of buckling parts; the coaxial hole is intersected with the accommodating cavity; a first part of the sealing assembly is movably arranged in the containing cavity, a second part of the sealing assembly is arranged outside the containing cavity and provided with a sealing end capable of being matched with the anti-explosion valve sample piece and a magnetic attraction structure capable of being in magnetic attraction connection with the anti-explosion valve sample piece, and the first part and the second part are in floating connection; the cam handle assembly is rotatably installed in the coaxial hole and provided with a handle part and a cam fixedly arranged on the handle part, and the cam is located in the containing cavity and abuts against the first part. The miniature quick connector is small and exquisite in appearance, the integrated hook is adopted at the joint of the miniature quick connector and an anti-explosion valve sample piece, the strength is high, meanwhile, the occupied space is reduced, the miniature quick connector is used in a narrow space, and the miniature test working condition requirement is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of battery pack and explosion-proof valve technology, specifically to a quick connector for an explosion-proof valve on a battery pack, which can be used for airtightness testing of the battery pack body. Background Technology

[0002] Traditional testing tools are bulky and cumbersome to connect, especially prone to loose connections that can cause airtight leaks, affecting the airtightness test of the battery pack, leading to misjudgments and compromising the battery pack's sealing performance. Furthermore, in some automotive production lines, the confined testing environment prevents existing quick-connectors from connecting to explosion-proof valves, thus hindering test completion.

[0003] In view of this, it is necessary to improve the traditional explosion-proof valve connector. Utility Model Content

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a miniature quick connector for cam-type explosion-proof valves. The purpose of designing this miniature quick connector is to meet the requirements of battery pack airtightness testing in various confined spaces where the installation direction can be adjusted.

[0005] To solve the above technical problems, this utility model provides the following solution: A miniature quick connector for a cam-type explosion-proof valve, comprising:

[0006] The main body assembly has a receiving cavity, a coaxial hole, and two sets of fasteners, with the coaxial hole intersecting the receiving cavity;

[0007] A sealing assembly, wherein a first part of the sealing assembly is movably disposed in the receiving cavity, and a second part is disposed outside the receiving cavity and the second part is provided with a sealing end that can cooperate with the explosion-proof valve sample and a magnetic attraction structure that can be magnetically connected with the explosion-proof valve sample, and the first part and the second part are floatingly connected.

[0008] A cam handle assembly, rotatably mounted in the coaxial hole, has a handle portion and a cam fixed to the handle portion, the cam being located within a receiving cavity and abutting against the first portion.

[0009] Furthermore, the main component includes:

[0010] The main body has a first disc portion with a missing edge and a convex ring disposed on one side of the first disc portion. The disc surface of the first disc portion is provided with at least one oval hole and a through hole. The end of the convex ring is provided with a first coaxial semi-circular groove that exceeds the diameter. A first retaining ring is provided inside the convex ring.

[0011] A top cover covers the convex ring, and its cover surface has a second coaxial semicircular groove with an over-diameter diameter. The second coaxial semicircular groove and the first coaxial semicircular groove form the coaxial hole, and the receiving cavity is formed between the top cover and the main body.

[0012] Furthermore, both sets of buckles are provided with inward-facing hook ends, and both sets of buckles are connected to the bottom edge of the first disc and are spaced apart by a distance.

[0013] Furthermore, the second part includes:

[0014] The pressure plate has a second disc portion and a protruding post located at the center of the first surface of the second disc portion. The outer wall of the protruding post is provided with multiple steps, and its interior is provided with a column cavity. The bottom surface of the column cavity is provided with multiple blind grooves arranged in an array. The protruding post enters the receiving cavity and contacts the first retaining ring. The edge of the second surface of the second disc portion is provided with a circular groove and the center of the second surface of the second disc portion is provided with a slot.

[0015] The main sealing ring is embedded in the groove to form the sealing end;

[0016] A magnet is inserted into the slot and fixed by a pressure block to form the magnetic attraction structure.

[0017] The first part includes:

[0018] Multiple springs, with one end of each spring placed in a one-to-one manner in the multiple blind slots;

[0019] A spring cap covers the other end of the spring, and the diameter of the spring cap is smaller than that of the cylindrical cavity;

[0020] A slip ring is fitted over the protrusion, and a second retaining ring is provided at the end of the slip ring away from the first retaining ring. An annular cavity is formed between the first retaining ring and the second retaining ring.

[0021] A floating spring is disposed in the annular cavity, with its two ends abutting against the first retaining ring and the second retaining ring respectively. The first part and the second part form the floating connection through the floating spring and multiple springs.

[0022] Furthermore, the first surface of the second disc portion is also provided with oval-shaped bosses symmetrically distributed with the protruding post as a reference point, and the oval-shaped bosses can move within the oval holes;

[0023] The first surface of the second disk portion is also provided with a guide post, which passes through the through hole and has a through hole that penetrates both sides of the second disk portion.

[0024] Furthermore, the main component also includes a connector, one end of which is fixed to the guide post, and the channel within the connector communicates with the through hole of the guide post.

[0025] Furthermore, the handle portion includes a T-shaped handle, the insertion segment of which is fitted into two copper sleeves and then inserted into a coaxial hole and limited by a retaining spring. The cam is eccentrically fixed to the insertion segment of the T-shaped handle, and the cam abuts against the spring cap.

[0026] Furthermore, the T-shaped handle includes a rear rotating rod, a front rotating rod, a positioning pin, and a handle. The insert is located on the front rotating rod, and its non-insertion section is linearly connected to the rear rotating rod. The handle is assembled with the rear rotating rod through the positioning pin to form a "T"-shaped structural component.

[0027] Furthermore, the main body is symmetrically fixed with pins;

[0028] The pressure plate is also symmetrically provided with pin movable holes, which penetrate both sides of the pressure plate, and one end of the pin sleeve, the O-ring, extends into the pin movable hole.

[0029] Furthermore, the cam is a rectangular block in which a set of opposite corners are set with rounded chamfers.

[0030] Compared with the prior art, the beneficial effects of this utility model are:

[0031] 1. The miniature quick connector of this utility model is small in size and uses an integrated hook at the connection with the explosion-proof valve sample. It has high strength and reduces the space occupied. It can be used in a small space and greatly improves the needs of small test conditions.

[0032] 2. The sealing component of the miniature quick connector of this utility model can seal the explosion-proof valve sample, and the operation is simple.

[0033] 3. The miniature quick connector of this utility model can meet the requirements of battery pack airtightness testing in different confined spaces and the test direction can be adjusted.

[0034] 4. The cam handle assembly adopts a cam locking mechanism design in terms of structure. The handle can rotate 360°. The symmetrical cams move in a circular motion as the handle rotates. The handle of the cam handle assembly has a groove design, and the hexagonal handle can be adjusted in both directions according to the working conditions to meet more needs.

[0035] 5. The miniature quick connector of this utility model is designed with a magnet separation mechanism. The handle in the cam handle assembly can be rotated at any angle, the sealing assembly can be retracted, and the symmetrical pins can press against the end cap of the explosion-proof valve sample to achieve separation from the magnet.

[0036] 6. The miniature quick connector of this utility model is equipped with a magnet, which can quickly open the valve of the explosion-proof valve of the test sample to form a quick seal when sealing.

[0037] 7. The cam handle assembly in this utility model miniature quick connector adopts a two-stage pressure cap design when connecting with the main body assembly. The copper sleeve is fixed and limited by a snap ring, which ensures the positioning of the cam and makes the roller easy to install. The main body assembly and the sealing assembly are connected by cross countersunk screws, which facilitates subsequent disassembly and maintenance.

[0038] 8. The spring and floating spring in the sealing assembly of the miniature quick connector of this utility model adapt to the circumferential motion of the cam in the cam handle assembly, which greatly reduces the wear of the sealing ring, improves the service life of the connector, and also protects the explosion-proof valve of the sample. Attached Figure Description

[0039] Figure 1 This is an exploded view of the miniature quick connector of this utility model.

[0040] Figure 2 This is an assembly diagram of the miniature quick connector of this utility model.

[0041] Figure 3 This is a cross-sectional view of the assembled miniature quick connector of this utility model.

[0042] Figure 4 This is a first-view sectional view of the miniature quick connector of this utility model.

[0043] Figure 5 This is a second-view sectional view of the miniature quick connector of this utility model.

[0044] Figure 6 This is a structural diagram of the main body of this utility model.

[0045] Figure 7 This is a structural diagram of the cam of this utility model.

[0046] Figure 8 This is a structural diagram of the pressure plate of this utility model. The figures are labeled as follows: First screw 1, Second screw 2, Third screw 3, Positioning pin 4, Copper sleeve 5, Connector 6, Magnet 7, Fourth screw 8, Fifth screw 9, Right hook 10, Left hook 11, Main body 12, Rear rotating rod 13, Front rotating rod 14, Spring cap 15, Handle 16, Pressure plate 17, Slip ring 18, Cam 19, Top cover 20, Pin 21, Pressure block 22, O-ring 23, Main sealing ring 24, Spring 25, Floating spring 26, Snap ring 27, Miniature quick connector 100, First disc portion 121, convex ring 122, Receiving cavity 123, First coaxial semi-circular groove 124, Oval hole 125, Through hole 126, Second disc portion 171, Oval boss 172, Guide post 173, Column cavity 174, Blind groove 175, convex post 176, Explosion-proof valve sample 200. Detailed Implementation

[0047] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present utility model. Obviously, the embodiments described in this utility model are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0048] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0049] Example 1: The specific structure of this utility model is as follows:

[0050] Please refer to the appendix. Figure 1-7 This utility model discloses a miniature quick connector for a cam-type explosion-proof valve. The miniature quick connector 100 includes:

[0051] The main body assembly has a receiving cavity 123, a coaxial hole, and two sets of fasteners, with the coaxial hole intersecting the receiving cavity;

[0052] A sealing assembly, wherein a first part of the sealing assembly is movably disposed in the receiving cavity, and a second part is disposed outside the receiving cavity and the second part is provided with a sealing end that can cooperate with the explosion-proof valve sample 200 and a magnetic attraction structure that can be magnetically connected with the explosion-proof valve sample 200, and the first part and the second part are floatingly connected.

[0053] A cam handle assembly is rotatably mounted in the coaxial hole, having a handle portion and a cam 19 fixed to the handle portion, the cam 19 being located within a receiving cavity and abutting against the first portion.

[0054] like Figure 5 As shown, the main body assembly includes a main body 12 and a top cover 20. The main body 12 has a first disc portion 121 with a missing edge and a protruding ring 122 disposed on one side of the first disc portion 121. The disc surface of the first disc portion 121 has at least one oblong hole 125 and a through hole 126. The end of the protruding ring 122 has a first coaxial semicircular groove 124 with an over-diameter diameter. A first retaining ring is disposed inside the protruding ring 122. The top cover 20 covers the protruding ring 122 and is fixed by a fifth screw 9. Its cover surface has a second coaxial semicircular groove with an over-diameter diameter. The second coaxial semicircular groove and the first coaxial semicircular groove 124 form the coaxial hole. The receiving cavity 123 is formed between the top cover 20 and the main body 12. The first part of the sealing assembly can move within the receiving cavity 123.

[0055] like Figure 4 As shown, both sets of fasteners have inward-facing hook ends, and both sets are connected to the bottom edge of the first disc portion 121 and are spaced apart. The two sets of fasteners are a right hook 10 and a left hook 11, which are fixed to the first disc portion 121 by a second screw 2, with their hook ends facing inward. Figure 2 The explosion-proof valve sample 200 shown is provided with a snap groove, and the hook ends of the left hook 11 and the right hook 10 are snapped into the snap groove.

[0056] like Figure 3 As shown, the second part includes:

[0057] The pressure plate 17 has a second disc portion 171 and a protruding post 176 located at the center of the first surface of the second disc portion 171. The outer wall of the protruding post 176 is provided with multiple steps, and its interior is provided with a column cavity 174. The bottom surface of the column cavity 174 is provided with multiple blind grooves 175 arranged in an array. The protruding post 176 enters the receiving cavity 123 and contacts the first retaining ring. The edge of the second surface of the second disc portion 171 is provided with a circular groove and the center of the second surface of the second disc portion 171 is provided with a slot.

[0058] The main sealing ring 24 is embedded in the groove to form the sealing end;

[0059] Magnet 7, which is inserted into the slot and fixed by the pressure block 22 to form the magnetic attraction structure;

[0060] The first part includes:

[0061] Multiple springs 25, one end of each spring 25 is placed in one-to-one with the multiple blind slots 175;

[0062] A spring cap 15 covers the other end of the spring 25, and the diameter of the spring cap 15 is smaller than that of the cylindrical cavity 174;

[0063] A slip ring 18 is fitted around the protrusion 176, and a second retaining ring is provided at the end of the slip ring away from the first retaining ring. An annular cavity is formed between the first retaining ring and the second retaining ring.

[0064] A floating spring 26 is disposed in the annular cavity, with its two ends abutting against the first retaining ring and the second retaining ring respectively. The first part and the second part form the floating connection through the floating spring 26 and multiple springs 25.

[0065] The first surface of the second disc portion 171 is further provided with oval-shaped bosses 172 symmetrically distributed with the protruding post 176 as a reference point. The oval-shaped bosses 172 are movable within the oval-shaped hole 125. The first surface of the second disc portion 171 is also provided with a guide post 173, which passes through the through hole 126. The guide post 173 has a through hole that penetrates both sides of the second disc portion 171. The main body assembly also includes a connector 6, one end of which is fixed to the guide post 173. The channel in the connector 6 communicates with the through hole of the guide post 173. The connector 6 is a quick-connect connector, which is connected to the air pressure generating device through a pipeline.

[0066] like Figure 1-2 As shown, the handle includes a T-shaped handle. The insert of the T-shaped handle is fitted into two copper sleeves 5 and then inserted into a coaxial hole, secured by a retaining spring 27. A cam 19 is eccentrically fixed to the insert of the T-shaped handle, and the cam 19 abuts against the spring cap 15. The T-shaped handle includes a rear rotating rod 13, a front rotating rod 14, a positioning pin 4, and a handle 16. The insert is located on the front rotating rod 14, and its non-insertion section is linearly connected to the rear rotating rod 13. The handle 16 is assembled with the rear rotating rod 13 via the positioning pin 4 to form a "T"-shaped structure. The handle 16 is a hexagonal handle.

[0067] like Figure 1-4 As shown, the main body 12 is symmetrically fixed with pins 21; the pressure plate 17 is also symmetrically provided with pin movable holes, which penetrate both sides of the pressure plate 17, and one end of the pin 21 fitted with an O-ring 23 extends into the pin movable hole. The cam 19 is a rectangular block in which a set of opposite corners are set with rounded chamfers.

[0068] Example 2:

[0069] The following describes the installation of the explosion-proof valve sample 200 into the main assembly. Specifically, the explosion-proof valve sample 200 is installed onto the left hook 10 and right hook 11 of the main assembly. Then, the explosion-proof valve sample 200 is externally inflated and sealed using quick-connect fittings. The left hook 10 and right hook 11 connecting the main assembly and the explosion-proof valve sample 200 are designed as integrated hooks, which have high strength and reduce the space occupied during testing, thus improving the requirements of small testing conditions.

[0070] The cam handle assembly employs a symmetrical cam structure, allowing the hexagonal handle to rotate 360° according to operating conditions. The cam 19 rotates flexibly in either direction depending on external force. The hexagonal handle features a groove design, facilitating bidirectional adjustment based on operating conditions. When the cam 19 rotates, the compression of the springs 25 and 26 in the sealing assembly is released. The sealing assembly moves downwards under the thrust of the cam 16. The sealing assembly contains a magnet 7, which gets closer and closer to the explosion-proof valve sample 200, attracting it to the end cap of the explosion-proof valve sample 200. At this point, the explosion-proof valve and the main sealing ring 24 tightly seal together, forming a rapid seal.

[0071] The separation process between the miniature quick connector and the explosion-proof valve prototype of this utility model is as follows: The miniature quick connector is designed with a magnet separation mechanism. Rotating the hexagonal handle in the cam handle assembly at any angle simultaneously rotates the cam 19. The spring cap 15 is no longer constrained by the cam 19, and the air pressure inside the explosion-proof cold valve prototype 200 pushes the pressure plate 17 upwards. Consequently, the spring cap 15, spring 25, and floating spring 26 in the sealing assembly are compressed upwards and backwards by external force. At this point, the two symmetrical pins 21 can press against the end cap of the explosion-proof cold valve prototype 200 to achieve separation from the magnet.

[0072] In summary, this utility model's miniature quick connector is compact in size, employing an integrated hook at the connection point with the explosion-proof valve sample. This design offers high strength while minimizing space occupation, significantly improving its suitability for confined spaces and challenging testing conditions. The sealing component of this miniature quick connector effectively seals the explosion-proof valve sample, simplifying operation. This miniature quick connector can meet the requirements of battery pack airtightness testing in various confined spaces, where the testing direction is adjustable. The cam handle assembly features a cam locking mechanism, allowing the handle to rotate 360°. Symmetrical cams rotate in a circular motion in response to the handle's rotation. The handle itself has a recessed design, allowing for bidirectional adjustment of the hexagonal handle to meet diverse needs. This utility model's miniature quick connector incorporates a magnet separation mechanism. Rotating the handle in the cam handle assembly at any angle causes the sealing component to retract, and symmetrical pins engage with the end cap of the explosion-proof valve sample to separate it from the magnet. The miniature quick connector also contains a magnet, enabling rapid opening of the explosion-proof valve in the test sample to achieve a quick seal. The cam handle assembly of this miniature quick connector employs a two-stage pressure cap design when connecting to the main body assembly. A retaining spring secures the copper sleeve, ensuring cam positioning and facilitating roller installation. The main body assembly and sealing assembly are connected using small Phillips head countersunk screws, facilitating subsequent disassembly and maintenance. The springs and floating springs in the sealing assembly of this miniature quick connector adaptively adapt to the circumferential motion of the cam in the cam handle assembly, significantly reducing wear on the sealing ring, extending the connector's service life, and also protecting the explosion-proof valve in the prototype.

[0073] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the contents of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A miniature quick connector for a cam-type explosion relief valve, characterized by, The micro quick connector (100) comprises: a main body assembly having a receiving cavity (123), a coaxial hole and two sets of buckling parts, the coaxial hole intersects with the receiving cavity; a sealing assembly, a first part of the sealing assembly is movably arranged in the receiving cavity, a second part of the sealing assembly is arranged outside the receiving cavity and is provided with a sealing end capable of cooperating with the explosion-proof valve-like element (200) and a magnetic attraction structure capable of magnetically connecting with the explosion-proof valve-like element (200), the first part and the second part are floatingly connected; a cam handle assembly rotatably arranged in the coaxial hole, the cam handle assembly has a handle part and a cam (19) fixed to the handle part, the cam (19) is arranged in the receiving cavity and abuts against the first part.

2. A cam-type quick connector for an explosion-proof valve according to claim 1, wherein The main body assembly comprises: a main body (12) having a first disc part (121) with a missing edge, a lug (122) arranged on one side of the first disc part (121), a disc surface of the first disc part (121) is provided with at least one waist hole (125) and a through hole (126), an end of the lug (122) has a first coaxial semicircular groove (124) with an over-diameter, and the lug (122) is provided with a first stop ring; a top cover (20) covering the lug (122), a cover surface of the top cover (20) has a second coaxial semicircular groove with an over-diameter, the second coaxial semicircular groove and the first coaxial semicircular groove (124) form the coaxial hole, and the receiving cavity (123) is formed between the top cover (20) and the main body (12).

3. A cam-actuated micro quick connector for an explosion relief valve according to claim 2, wherein The two sets of buckling parts are each provided with an inwardly directed hook end, and the two sets of buckling parts are each connected to a bottom edge of the first disc part (121) and are spaced apart by a distance.

4. A cam-actuated micro quick connector for an explosion relief valve according to claim 2, wherein The second part comprises: a pressing plate (17) having a second disc part (171), a lug column (176) arranged at the center of a first surface of the second disc part (171), an outer wall of the lug column (176) is provided with multiple levels of steps, an inner part of the lug column (176) is provided with a column cavity (174), a bottom surface of the column cavity (174) is provided with multiple blind grooves (175) arranged in an array, the lug column (176) enters the receiving cavity (123) and contacts the first stop ring, a second surface edge of the second disc part (171) is provided with a circular structure of an embedding groove, and a notch is arranged in a middle part of the second surface of the second disc part (171); a main sealing ring (24) embedded in the embedding groove to form the sealing end; a magnet (7) arranged in the notch and fixed by a pressing block (22) to form the magnetic attraction structure; The first part comprises: multiple springs (25), one end of each spring (25) is one-to-one arranged in the multiple blind grooves (175); a spring cap (15) covering the other end of the spring (25), the spring cap (15) has a diameter smaller than the column cavity (174); a sliding ring (18) sleeved on the lug column (176), an end of the sliding ring (18) away from the first stop ring is provided with a second stop ring, and a ring cavity is formed between the first stop ring and the second stop ring. The floating spring (26) is arranged in the ring cavity, and two ends of the floating spring (26) abut against the first blocking ring and the second blocking ring respectively, and the first part and the second part form the floating connection through the floating spring (26) and the plurality of springs (25).

5. A micro quick connector for a cam-type explosion relief valve according to claim 4, wherein The first surface of the second disc part (171) is further provided with a plurality of waist circular bosses (172) symmetrically distributed with the convex column (176) as a reference point, and the waist circular bosses (172) are movable in the waist circular hole (125). The first surface of the second disc part (171) is further provided with a guide column (173) penetrating the through hole (126), and the guide column (173) is provided with a through hole penetrating two surfaces of the second disc part (171).

6. A micro quick connector for a cam-type explosion relief valve according to claim 5, wherein The main body assembly further comprises a joint (6), one end of the joint (6) is fixed to the guide column (173), and a channel in the joint (6) is in communication with the through hole of the guide column (173).

7. A cam-actuated micro quick connector for an explosion relief valve according to claim 4, wherein The handle part comprises a T-shaped handle, a plug segment of the T-shaped handle is sleeved into two copper sleeves (5), inserted into a coaxial hole and limited by a snap spring (27), the eccentric cam (19) is fixed to the plug segment of the T-shaped handle, and the cam (19) abuts against the spring cap (15).

8. A cam-actuated micro quick connector for an explosion relief valve according to claim 7, wherein The T-shaped handle comprises a rear rotating rod (13), a front rotating rod (14), a positioning pin (4) and a handle (16), the plug segment is arranged on the front rotating rod (14), a non-plug segment and the rear rotating rod (13) are linearly connected, and the handle (16) is assembled into a "T" type structure with the rear rotating rod (13) through the positioning pin (4).

9. A micro quick connector for a cam-type explosion relief valve according to claim 4, wherein The main body (12) is symmetrically fixed with the pin (21); The pressing plate (17) is further symmetrically provided with a pin movable hole penetrating two surfaces of the pressing plate (17), and one end of the O-shaped ring (23) sleeved on the pin (21) extends into the pin movable hole.

10. A micro quick connector for cam-actuated explosion relief valve according to any one of claims 1-9, characterized in that, The cam (19) is a rectangular block body, and a group of opposite corners of the rectangular block body are provided as circular chamfer structures.

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