Miniature quick connector for press type sucker explosion-proof valve

Abstract

The utility model discloses a miniature quick connector for a press type sucker explosion-proof valve. The miniature quick connector comprises a main body assembly, a piston assembly and a sucker assembly. The cover surface of the main body assembly is provided with a first accommodating cavity and a first through hole penetrating to the other surface, and is also provided with a plurality of buckling parts which are equiangularly distributed in the side circumferential direction of the main body assembly; the piston assembly is arranged in the first containing cavity and can move. The piston assembly is provided with a second containing cavity and a second through hole coaxial with the first through hole. The first end of the suction cup assembly penetrates through the first through hole and the second through hole and extends outwards by a certain distance, the second end of the suction cup assembly is a suction end and is limited in the second containing cavity to move, and the first end of the suction cup assembly is provided with a pressure release valve mechanism. According to the utility model, the buckling part is arranged on the main body, so that the purposes of rapid disassembly and assembly and convenient disassembly and assembly are realized, and further high-efficiency pressure testing can be realized.

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 existing miniature quick connectors for explosion-proof valves. Utility Model Content

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a miniature quick connector for a press-type suction cup explosion-proof valve. The purpose of designing this miniature quick connector is to facilitate installation and ensure a stable connection.

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

[0006] The main body assembly has a cover surface having a first receiving cavity and a first through hole extending to the other side, and also has a plurality of fasteners distributed at equal angles along the circumferential side of the main body assembly.

[0007] A piston assembly is disposed in the first receiving cavity and is movable, the piston assembly having a second receiving cavity and a second through hole having a coaxiality with the first through hole;

[0008] A suction cup assembly, wherein the first end of the suction cup assembly passes through the first through hole and the second through hole and extends outward for a certain distance, and the second end is a suction end and is restricted to move within the second receiving cavity. The first end of the suction cup assembly is provided with a pressure relief valve mechanism.

[0009] Furthermore, the main component includes a main body;

[0010] The main body has a frustum and two symmetrical protrusions on the side of the frustum. The first through hole is located at the center of the frustum, and two fasteners are installed on the two protrusions one to one.

[0011] The bottom surface of the first receiving cavity of the main body is provided with multiple spring limiting holes.

[0012] Furthermore, the outer end of the protruding rafter has a vertical groove, the upper part of the vertical groove has a spring groove, and the lower part of the vertical groove has a coaxial hole in the horizontal direction.

[0013] The fastener includes a pin, a hook, and a hook spring. The pin fixes the fulcrum of the hook to a coaxial hole. The first end of the hook spring is placed in the spring groove, and its second end abuts against the tail end of the hook.

[0014] Furthermore, the piston assembly includes a piston, a third sealing ring, and multiple springs;

[0015] The piston has a first circular groove around its cavity edge, and the third sealing ring is embedded in the first circular groove.

[0016] The piston has multiple spring positioning holes distributed on its end face that enters the first receiving cavity. The multiple springs are placed one-to-one in the multiple spring positioning holes, and their other ends are respectively inserted into multiple spring limiting holes.

[0017] Furthermore, a notch is provided at one corner of the frustum portion;

[0018] The piston has a connecting post on its end face that enters the first receiving cavity;

[0019] The miniature quick connector also includes an air tube that is connected to the connecting post and extends from the notch.

[0020] Furthermore, the cover opening of the main body is provided with a groove, and a steel wire retaining ring is engaged in the groove. The piston is confined to the first receiving cavity by the steel wire retaining ring.

[0021] Furthermore, the piston has a second circular groove on the side of its second through hole, and a fourth sealing ring is embedded in the second circular groove.

[0022] Furthermore, the suction cup assembly includes:

[0023] A suction cup having a disc body with a conical concave surface and a column portion connected to the disc body;

[0024] The suction cup spindle is fastened to the column portion of the suction cup;

[0025] The suction cup outer shell is fitted over the column portion of the suction cup and also over the outer portion of the suction cup spindle. The suction cup outer shell passes through the second through hole and the first through hole and extends outward for a certain distance.

[0026] A suction cup cap is provided on the extended end of the suction cup housing, and the cap end of the suction cup cap can enter the first through hole. A gap is provided between the suction cup cap and the suction cup housing.

[0027] A floating spring, one end of which is pressed against the main body, and the other end of which enters the gap and presses against the suction cup cover.

[0028] Furthermore, a channel connecting the suction cup and the suction cup spindle is provided between them, and a chamber for installing the pressure relief valve mechanism is provided in the channel area of ​​the suction cup spindle.

[0029] Furthermore, the pressure relief valve mechanism includes a pressure relief valve cover and a pressure relief valve core;

[0030] The pressure relief valve cover has a through cavity that extends through both ends. The pressure relief valve core passes through the through cavity from the inside out and forms a sealable structure with the pressure relief valve cover. The pressure relief valve core is movable and can release the pressure in the channel when it is pressed.

[0031] The insertion end of the pressure relief valve cover enters the chamber and forms a sealing structure between it and the suction cup spindle. The annular cover of the pressure relief valve cover is fixed to the suction cup cover.

[0032] Compared with the prior art, the beneficial effects of this utility model are:

[0033] 1. This utility model has a buckle on the main body to achieve quick assembly and disassembly, thereby achieving high-efficiency pressure testing.

[0034] 2. This utility model achieves a stable connection by combining the suction cup assembly, piston assembly, and main body, thereby reducing the risk.

[0035] 3. This utility model is also equipped with a pressure relief valve mechanism. Pressure can be released by pressing the pressure relief valve mechanism, thereby improving the safety performance of the explosion-proof valve. Attached Figure Description

[0036] Figure 1 This is an assembly diagram of the miniature quick connector of this utility model.

[0037] Figure 2 This is an exploded view of the miniature quick connector of this utility model.

[0038] Figure 3 This is a cross-sectional view of the miniature quick connector of this utility model.

[0039] Figure 4 This is a first-view structural diagram of the main body of this utility model.

[0040] Figure 5 This is a second-view structural diagram of the main body of this utility model.

[0041] Figure 6 This is a structural diagram of the piston of this utility model.

[0042] Figure 7 This is a structural diagram of the miniature quick connector of this utility model after it is fastened to the explosion-proof valve of the sample.

[0043] The attached diagram is labeled as follows: Miniature quick connector 100, sample explosion-proof valve 200, pin 1, main body 2, piston 3, hook 4, suction cup spindle 5, suction cup housing 6, suction cup cover 7, pressure relief valve cover 8, pressure relief valve core 9, air tube 10, first sealing ring 11, second sealing ring 12, third sealing ring 13, fourth sealing ring 14, suction cup 15, floating spring 16, spring 17, hook spring 18, wire retaining ring 19, single-ear stepless snap ring 20, first through hole 21, protruding rafter 22, notch 23, spring limiting hole 24, connecting post 31, second through hole 32. Detailed Implementation

[0044] 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.

[0045] 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.

[0046] Example 1: The specific structure of this utility model is as follows:

[0047] Please refer to the appendix. Figure 1-7 This utility model discloses a miniature quick connector for a press-type suction cup explosion-proof valve. The miniature quick connector 100 includes a main body assembly, a piston assembly, and a suction cup assembly.

[0048] The cover of the main component has a first receiving cavity and a first through hole 21 extending to the other side, and also has a plurality of fasteners distributed equiangularly around the side circumference of the main component. The main component includes a main body 2; the main body 2 has a frustum and two symmetrically arranged protrusions 22 on the side of the frustum, the first through hole 21 is located at the center of the frustum, and the two fasteners are installed one-to-one on the two protrusions 22; the bottom surface of the first receiving cavity of the main body 2 is provided with a plurality of spring limiting holes 24. The outer end of the protrusion 22 has a vertical groove, the upper part of the vertical groove is provided with a spring groove, and the lower part of the vertical groove is provided with a coaxial hole laterally; the fasteners include a pin 1, a hook 4 and a hook spring 18, the pin 1 fixes the fulcrum of the hook 4 to the coaxial hole, the first end of the hook spring 18 is placed in the spring groove, and its second end abuts against the tail end of the hook 4.

[0049] like Figure 1As shown, the sample explosion-proof valve 200 has symmetrical wing plates on both sides, and the outer ends of the two wing plates are provided with buckle grooves. The main body component is snapped onto the sample explosion-proof valve 200, so that the hook 4 is opened and then snapped into the buckle groove, realizing the quick assembly and disassembly of the miniature quick connector 100 and the sample explosion-proof valve 200.

[0050] The piston assembly is disposed in the first receiving cavity and is movable. The piston assembly has a second receiving cavity and a second through hole 32 coaxial with the first through hole 21. The piston assembly includes a piston 3, a third sealing ring 13, and a plurality of springs 16. The edge of the cavity of the piston 3 is provided with a first circular groove, and the third sealing ring 13 is embedded in the first circular groove. When the miniature quick connector 100 is fastened to the sample explosion-proof valve 200, the third sealing ring 13 achieves a seal between the miniature quick connector 100 and the sample explosion-proof valve 200.

[0051] The piston 3 has multiple spring positioning holes distributed on its end face that enters the first receiving cavity. Multiple springs 16 are positioned one-to-one in the multiple spring positioning holes, with their other ends respectively abutting against multiple spring limiting holes. The function of the multiple springs 16 is that when the pressure in the second receiving cavity increases, the piston 3 will push the multiple springs 16 upwards, compressing them; when the pressure in the second receiving cavity decreases, the multiple springs 16 will push the piston 3 downwards.

[0052] A notch 23 is provided at one corner of the frustum portion; the piston 3 has a connecting post 31 on its end face that enters the first receiving cavity; the miniature quick connector also includes an air tube 10, which is connected to the connecting post 31 and extends out from the notch 23. The air tube 10 is connected to the piping of an external pressure testing machine and is used for air intake testing pressure.

[0053] The cover opening of the main body 2 is provided with a groove, and a wire retaining ring 19 is engaged in the groove. The piston 3 is confined within the first receiving cavity by the wire retaining ring 19. The inner diameter of the wire retaining ring 19 is smaller than the diameter of the upper part of the piston 3, so the piston 3 cannot detach from the main body 2 from the wire retaining ring 19.

[0054] The piston 3 has a second circular groove on the side of its second through hole 32. The second circular groove is fitted with a fourth sealing ring 14. The function of the fourth sealing ring 14 is to form a sealing structure between the piston 3 and the suction cup assembly, and to prevent gas from leaking out from the gap between the piston 3 and the suction cup assembly when the pressure is tested.

[0055] Example 2:

[0056] The following is a description of the suction cup assembly:

[0057] The first end of the suction cup assembly passes through the first through hole 21 and the second through hole 32 and extends outward a certain distance. Its second end is a suction end and is restricted to move within the second receiving cavity. The first end of the suction cup assembly is provided with a pressure relief valve mechanism.

[0058] The suction cup assembly includes:

[0059] The suction cup 15 has a disc body with a conical concave surface and a column portion connected to the disc body;

[0060] The suction cup spindle 5 is fastened to the column portion of the suction cup 15;

[0061] The suction cup housing 6 is sleeved on the outside of the column portion of the suction cup 15 and also sleeved on the outside of the suction cup spindle 5. The suction cup housing 6 passes through the second through hole 32 and the first through hole 21 and extends outward for a certain distance.

[0062] A suction cup cover 7 is provided on the extended end of the suction cup housing 6 and the cover end of the suction cup cover 7 can enter the first through hole 21. A gap is provided between the suction cup cover 7 and the suction cup housing 6.

[0063] A floating spring 16, one end of which is pressed against the main body 2, and the other end of which enters the gap and presses against the suction cup cover 7.

[0064] A channel connecting the suction cup 15 and the suction cup spindle 5 is provided, which leads to the second receiving cavity. A chamber for installing the pressure relief valve mechanism is located in the channel area of ​​the suction cup spindle 5. The pressure relief valve mechanism includes a pressure relief valve cover 8 and a pressure relief valve core 9. The pressure relief valve cover 8 has a through cavity extending to both ends. The pressure relief valve core 9 passes through the through cavity from the inside out and forms a sealable structure with the pressure relief valve cover 8. The pressure relief valve core 9 is movable and can release the pressure in the channel when pressed. Specifically, the pressure relief valve core 9 is fitted with a second sealing ring 12, which seals the pressure relief valve core 9 and the pressure relief valve cover 8.

[0065] The insertion end of the pressure relief valve cover 8 enters the chamber and forms a sealing structure with the suction cup spindle 5. The annular cover of the pressure relief valve cover 8 is fixed to the suction cup cover 7. The insertion end of the pressure relief valve cover 8 is provided with an annular groove, and the first sealing ring 11 is embedded in the annular groove. The function of the first sealing ring 11 is to form a seal between the pressure relief valve cover 8 and the suction cup spindle 5.

[0066] from Figure 3 As can be seen, a cavity communicating with the trachea is formed between the second receiving cavity, the channel, and the inner cavity of the sample explosion-proof valve 200.

[0067] Pressing the pressure relief valve core 9 releases pressure. When the internal and external air pressures of the miniature quick connector are the same, the pressure relief valve core 9 can move freely. When the miniature quick connector is filled with air, the pressure relief valve core 9 will be pushed up by the air pressure, forming a seal again.

[0068] In summary, the miniature quick connector of this invention adopts a symmetrical hook structure, which allows for quick connection to explosion-proof valves in any 360° direction. The air inlet (i.e., connecting post 31) on the connecting piston of the air pipe 10 ensures that the connector is compact while maintaining the required flow rate, reducing inflation time, improving connector testing efficiency, and achieving rapid connection performance.

[0069] The suction cup assembly of this utility model's miniature quick connector contains floating springs 16 and 17. The connection and sealing can be completed by simply pushing and pressing the suction cup assembly. The hook 4 in the main assembly is designed with a large front end guide, so that it can be pushed forward directly to complete the quick locking operation, which simplifies the connection process.

[0070] The miniature quick connector of this utility model adopts a suction cup air inlet valve design. When separating, pressing the pressure relief valve core 9 will release the gas inside the sample explosion-proof valve and the connector, avoiding extreme pulling of the suction cup 15 during separation, making operation easier, and increasing the service life of the suction cup 15.

[0071] When the miniature quick connector of this invention is tested with the sample explosion-proof valve 200, the suction cup 15 automatically makes a vacuum connection with the end cap of the sample explosion-proof valve when the suction cup assembly is pressed, and at the same time, the vent valve cover is pulled open in the reverse direction. This avoids the situation where a false test is caused by not opening the vent valve cover during the subsequent testing process.

[0072] 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 push-type suction cup explosion-proof valve, characterized in that, The miniature quick connector (100) includes: The main body assembly has a cover with a first receiving cavity and a first through hole (21) extending to the other side, and also has a plurality of fasteners distributed at equal angles on the circumferential side of the main body assembly. A piston assembly is disposed in the first receiving cavity and is movable. The piston assembly has a second receiving cavity and a second through hole (32) coaxial with the first through hole (21). The suction cup assembly has a first end that passes through a first through hole (21) and a second through hole (32) and extends outward a certain distance, and its second end is a suction end that is restricted to move within the second receiving cavity. The first end of the suction cup assembly is provided with a pressure relief valve mechanism.

2. The miniature quick connector for a push-type suction cup explosion-proof valve according to claim 1, characterized in that, The main component includes a main body (2); The main body (2) has a frustum and two symmetrical protrusions (22) located on the side of the frustum. The first through hole (21) is located at the center of the frustum, and two fasteners are installed one-to-one on the two protrusions (22). The bottom surface of the first receiving cavity of the main body (2) is provided with multiple spring limiting holes.

3. A miniature quick connector for a press-type suction cup explosion-proof valve according to claim 2, characterized in that, The outer end of the protruding rafter (22) has a vertical groove, the upper part of the vertical groove is provided with a spring groove, and the lower part of the vertical groove is provided with a coaxial hole in the horizontal direction. The buckle includes a pin (1), a hook (4) and a hook spring (18). The pin (1) fixes the fulcrum of the hook (4) to the coaxial hole. The first end of the hook spring (18) is placed in the spring groove, and its second end abuts against the tail end of the hook (4).

4. A miniature quick connector for a push-type suction cup explosion-proof valve according to claim 2, characterized in that, The piston assembly includes a piston (3), a third sealing ring (13), and multiple springs (16); The piston (3) has a first circular groove at the edge of its cavity, and the third sealing ring (13) is embedded in the first circular groove; The piston (3) has multiple spring positioning holes distributed on its end face that enters the first receiving cavity. The multiple springs (16) are placed one-to-one in the multiple spring positioning holes, and their other ends abut against the multiple spring limiting holes respectively.

5. A miniature quick connector for a push-button type explosion-proof valve according to claim 4, characterized in that, A notch (23) is provided at one corner of the frustum portion; The piston (3) is further provided with a connecting post (31) on its end face that enters the first receiving cavity; The miniature quick connector also includes an air tube (10) that is connected to a connecting post (31) and extends from the notch (23).

6. A miniature quick connector for a push-type suction cup explosion-proof valve according to claim 4, characterized in that, The cover opening of the main body (2) is provided with a groove, and a wire retaining ring (19) is engaged in the groove. The piston (3) is confined to the first receiving cavity by the wire retaining ring (19).

7. A miniature quick connector for a push-button type explosion-proof valve according to claim 4, characterized in that, The piston (3) has a second circular groove on the side of its second through hole (32), and a fourth sealing ring (14) is embedded in the second circular groove.

8. A miniature quick connector for a push-button type explosion-proof valve according to claim 2, characterized in that, The suction cup assembly includes: The suction cup (15) has a disc body with a conical concave surface and a column part connected to the disc body; The suction cup spindle (5) is fastened to the column portion of the suction cup (15); The suction cup outer shell (6) is sleeved on the outside of the column portion of the suction cup (15) and also sleeved on the outside of the suction cup spindle (5). The suction cup outer shell (6) passes through the second through hole (32) and the first through hole (21) and extends outward for a certain distance. A suction cup cover (7) is provided on the extended end of the suction cup housing (6) and the cover end of the suction cup cover (7) can enter the first through hole (21). A gap is provided between the suction cup cover (7) and the suction cup housing (6). A floating spring (16) has one end pressed against the main body (2) and the other end inserted into the gap and pressed against the suction cup cover (7).

9. A miniature quick connector for a push-type suction cup explosion-proof valve according to claim 8, characterized in that, A channel connecting the suction cup (15) and the suction cup spindle (5) is provided, and a chamber for installing the pressure relief valve mechanism is provided in the channel area of ​​the suction cup spindle (5).

10. A miniature quick connector for a push-button type explosion-proof valve according to claim 9, characterized in that, The pressure relief valve mechanism includes a pressure relief valve cover (8) and a pressure relief valve core (9); The pressure relief valve cover (8) is provided with a through cavity that extends through both ends. The pressure relief valve core (9) is inserted from the inside out into the through cavity and forms a sealable structure with the pressure relief valve cover (8). The pressure relief valve core (9) is movable and can release the pressure in the channel when it is pressed. The insertion end of the pressure relief valve cover (8) enters the chamber and forms a sealing structure between it and the suction cup spindle (5). The annular cover of the pressure relief valve cover (8) is fixed to the suction cup cover (7).

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