Automobile quick-plug connector with automatic locking function

Abstract

The utility model discloses an automobile quick-plug connector with an automatic locking function, which comprises a quick-plug connector shell, a first inner sealing ring, an isolating ring and a second inner sealing ring are sequentially arranged inside the upper end of the quick-plug connector shell from bottom to top, a base is sleeved at the upper end of the quick-plug connector shell, a lock catch is inserted on the side surface of the base, a male connector is inserted at the top of the base, and a female connector is inserted at the bottom of the male connector. Relates to the technical field of automobiles, after a male connector is inserted, a lock catch can automatically enter a locking position, and a buckle does not need to be manually pushed to the locking position; the structure of the product is optimized, the product is more compact, the minimum assembling space needed by the quick-plug connector is greatly reduced, and the requirement for application in a narrow space can be met.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobiles, in particular to an automobile quick-plug connector with an automatic locking function. Background Art

[0002] With the development of automobiles, there are more and more pipelines on automobiles, the assembly space is decreasing, and the pipeline structure is more complicated. Traditional automobile quick-connect connectors use ordinary snap-on assembly connections, and the minimum installation size of the connector is large, which is not conducive to the assembly of connectors in narrow spaces. In addition, during the assembly process of traditional snap-on quick-connect connectors, the snap-on needs to be manually locked after the male connector is inserted. During the assembly process, it is easy to forget to lock the snap-on or the snap-on is not locked in place, resulting in the risk of pipeline leakage.

[0003] In order to solve the above problems, it is urgent to invent an automobile quick-plug connector with an automatic locking function. Utility Model Content

[0004] The utility model aims to provide an automobile quick-plug connector with an automatic locking function to solve the problems raised in the above-mentioned background technology.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A car quick-connect connector with an automatic locking function comprises a quick-connect connector housing, wherein a No. 1 inner sealing ring, an isolating ring and a No. 2 inner sealing ring are arranged in sequence from bottom to top inside the upper end of the quick-connect connector housing, a base is sleeved on the upper end of the quick-connect connector housing, a lock buckle is inserted into the side of the base, and a male connector is inserted into the top of the base.

[0007] Preferably, an outer sealing ring groove is provided on the outer side of the lower end of the quick-plug connector shell, an outer sealing ring is sleeved in the outer sealing ring groove, a plurality of limit buckles and base positioning bosses are arranged in an array on the outer side of the upper end of the quick-plug connector shell, a plurality of shell limit grooves and a plurality of shell positioning grooves are correspondingly provided on the lower end of the base, the base positioning boss is slidably connected to the shell positioning groove, and the limit buckle is clamped in the shell limit groove.

[0008] Preferably, the back-stop claw on the lock buckle is clamped in the lock buckle back-stop groove, and the lock buckle outer positioning surface on the lock buckle presses against the inner side of the lock buckle limiting boss.

[0009] Preferably, the concentric positioning boss of the base is used to assist the male connector in maintaining concentric insertion so that the guide fillet on the male connector contacts the self-locking claw on the locking buckle.

[0010] Preferably, the guide fillet on the male connector is used to open the self-locking claw, so that the locking claw is plastically deformed to both sides, an interference fit is adopted between the sealing surface and the self-locking claw and the locking platform, and the self-locking claw and the sealing surface are eccentrically designed.

[0011] Preferably, when the sealing surface completely enters the sealing cavity of the shell, and the locking platform is stuck in the slot of the male connector, the diameter of the slot is smaller than the sealing surface, the locking claw rebounds and resets, and the front end of the lock passes over the inner side of the lock limit boss, and the inner positioning surface of the lock at the front end of the lock is stuck on the outer side of the lock limit boss.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] In the utility model, after the male connector is inserted, the lock buckle can automatically enter the locking position without manually pushing the buckle into the locking position; the product structure is optimized to make it more compact, which greatly reduces the minimum assembly space required for the quick-insert connector and can meet the needs of applications in narrow spaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of an automobile quick-plug connector assembly with an automatic locking function in the utility model;

[0015] Figure 2 It is an exploded schematic diagram of an automobile quick-plug connector with an automatic locking function in the utility model;

[0016] Figure 3 It is a schematic diagram of the quick-connect connector housing in the utility model, wherein: Figure 3 (a) is a cross-sectional view of the quick-connect connector housing. Figure 3 (b) is a front view of the quick-connect connector housing;

[0017] Figure 4 This is a schematic diagram of the lock buckle in the utility model, wherein: Figure 4 (a) is the top view of the lock. Figure 4 (b) is a side view of the lock;

[0018] Figure 5 It is a schematic diagram of the base in the utility model, wherein: Figure 5 (a) is the front view of the base. Figure 5 (b) is a top view of the base;

[0019] Figure 6 It is a schematic diagram of the male connector in the utility model;

[0020] Figure 7 This is a schematic diagram of the internal and external sealing rings of the utility model.

[0021] Figure 8 It is a schematic diagram of the No. 1 inner sealing ring in the utility model;

[0022] Fig. 9 It is a schematic diagram of the isolation ring in the utility model;

[0023] Fig.10 This is a schematic diagram of the inner No. 2 sealing ring in the utility model;

[0024] Fig.11 This is a schematic diagram of the assembly of the lock in the utility model;

[0025] Fig.12 This is a schematic diagram of the lock buckle in the utility model being installed in place;

[0026] In the figure: 1. External sealing ring;

[0027] 2. Quick-connect connector housing; 21. Housing sealing cavity; 22. Limit buckle; 23. Pipe connection end; 24. External sealing ring groove; 25. Base positioning boss;

[0028] 3. Inner sealing ring No. 1;

[0029] 4. Isolation ring;

[0030] 5. No. 2 inner sealing ring;

[0031] 6. Base; 61. Lock buckle stop groove; 62. Inner side of lock buckle limit boss; 63. Outer side of lock buckle limit boss; 64. Shell limit groove; 65. Shell positioning groove; 66. Lock buckle assembly position; 67. Concentric positioning boss;

[0032] 7. Lock buckle; 71. Lock buckle outer positioning surface; 72. Lock buckle inner positioning surface; 73. Retraction claw; 74. Self-locking claw; 75. Locking platform; 76. Lock buckle claw;

[0033] 8. Male connector; 81. Sealing surface; 82. Guide fillet; 83. Card slot. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0035] Example:

[0036] A car quick-plug connector with automatic locking function, such as Figure 1-12 As shown, it includes a quick-connect connector housing 2, and a No. 1 inner sealing ring 3, an isolating ring 4 and a No. 2 inner sealing ring 5 are arranged in sequence from bottom to top inside the upper end of the quick-connect connector housing 2. A base 6 is sleeved on the upper end of the quick-connect connector housing 2, a lock buckle 7 is inserted on the side of the base 6, and a male connector 8 is inserted on the top of the base 6.

[0037] In a possible embodiment, an outer sealing ring groove 24 is provided on the outer side of the lower end of the quick-connect connector housing 2, an outer sealing ring 1 is sleeved in the outer sealing ring groove 24, a plurality of limit buckles 22 and a base positioning boss 25 are arranged in an array on the outer side of the upper end of the quick-connect connector housing 2, a plurality of housing limit grooves 64 and a plurality of housing positioning grooves 65 are correspondingly provided on the lower end of the base 6, the base positioning boss 25 is slidably connected to the housing positioning groove 65, and the limit buckle 22 is clamped in the housing limit groove 64.

[0038] In a possible implementation, the anti-retraction claw 73 on the lock buckle 7 is clamped in the lock buckle anti-retraction groove 61, and the lock buckle outer positioning surface 71 on the lock buckle 7 abuts against the inner side 62 of the lock buckle limiting boss.

[0039] In a possible implementation, the concentric positioning boss 67 of the base 6 is used to assist the male connector in maintaining concentric insertion, so that the guide fillet 82 on the male connector 8 contacts the self-locking claw 74 on the lock buckle 7 .

[0040] In a possible embodiment, the guide fillet 82 on the male connector 8 is used to open the self-locking claw 74 so that the locking claw 76 is plastically deformed to both sides, and an interference fit is adopted between the sealing surface 81 and the self-locking claw 74 and the locking platform 75, and the self-locking claw 74 and the sealing surface 81 are eccentrically designed.

[0041] In a possible embodiment, when the sealing surface 81 completely enters the shell sealing cavity 21, and the locking platform 75 is stuck in the slot 83 of the male connector, the diameter of the slot 83 is smaller than the sealing surface 81, the lock claw 76 rebounds and resets, and the front end of the lock 7 passes over the inner side 62 of the lock limit boss, and the lock inner positioning surface 32 at the front end of the lock is stuck in the outer side 63 of the lock limit boss.

[0042] In a possible implementation, during assembly, the outer sealing ring 1, quick-connect connector housing 2, No. 1 inner sealing ring 3, isolation ring 4, No. 2 inner sealing ring 5, base 6, lock buckle 7, and male connector 8 are assembled in this order.

[0043] Working principle, see Figure 1-12 When in use, there is an outer sealing ring groove 24 on the quick-connect connector housing 2. When assembling, first insert the outer sealing ring 1 into the outer sealing ring groove 24, then install the No. 1 inner sealing ring 3, the isolation ring 4, and the No. 2 inner sealing ring 5 into the housing sealing cavity 21 in sequence, and then align the housing positioning groove 65 of the base 6 with the base positioning boss 25 on the housing and press it in until the limiting buckle 22 is completely pressed into the housing limiting groove 64 on the base. The base assembly is completed. Then press the lock buckle 7 into the lock buckle assembly position 66 until the back-stop claw 73 on the lock buckle enters the lock buckle back-stop groove 61, and the lock buckle outer positioning surface 71 on the lock buckle presses against the inner side 62 of the lock buckle limiting boss, as shown in FIG. Figure 7 As shown, the lock assembly is now complete.

[0044] When the male connector 8 is inserted into the base 6, the male connector concentric positioning boss 67 on the base will assist the male connector to maintain concentric insertion, so that the guide fillet 82 on the male connector will contact the self-locking claws 74 on the lock buckle, and the male connector guide fillet 82 will open the self-locking claws 74, allowing the lock buckle claws 76 to plastically deform to both sides, and the male connector continues to enter vertically downward, and the sealing surface 81 on the male connector will contact the self-locking claws 74. There is an interference fit between the sealing surface 81 and the self-locking claws 74 and the locking platform 75. The lock buckle squeezes the sealing surface 81 inwardly under its own elasticity. At this time, the self-locking claws 74 and the sealing surface 81 are eccentrically designed, and the pressure of the lock buckle rebound will drive the lock buckle itself to move forward. At this time, the male connector continues to enter vertically downward, and when the sealing surface 81 completely enters the shell sealing cavity 21, the locking platform 75 will be stuck in the male connector's groove 83. Because the diameter of the slot 83 is smaller than the sealing surface 81, the lock claw 76 completely rebounds to its original state, and the front end of the lock passes over the inner side 62 of the lock limit boss under the action of elastic force and moves forward to the stop position. Figure 8 As shown, at this time, the lock buckle inner positioning surface 72 at the front end of the lock buckle is clamped on the outer side 63 of the lock buckle limiting boss, completing the automatic locking process.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automotive quick-connect connector with an automatic locking function, characterized in that: The quick-connect connector comprises a housing (2), wherein the interior of the upper end of the quick-connect connector housing (2) is provided with a No. 1 inner sealing ring (3), an isolating ring (4) and a No. 2 inner sealing ring (5) in order from bottom to top, the upper end of the quick-connect connector housing (2) is sleeved with a base (6), a locking buckle (7) is inserted into the side of the base (6), and a male connector (8) is inserted into the top of the base (6); An outer sealing ring groove (24) is provided on the outer side of the lower end of the quick connector housing (2), an outer sealing ring (1) is sleeved in the outer sealing ring groove (24), a plurality of limit buckles (22) and base positioning bosses (25) are arranged in an array on the outer side of the upper end of the quick connector housing (2), a plurality of housing limit grooves (64) and a plurality of housing positioning grooves (65) are correspondingly provided on the lower end of the base (6), the base positioning bosses (25) are slidably connected to the housing positioning grooves (65), and the limit buckles (22) are clamped in the housing limit grooves (64).

2. The automotive quick-connect connector with automatic locking function as claimed in claim 1, characterized in that: The anti-retraction claw (73) on the lock buckle (7) is clamped in the lock buckle anti-retraction groove (61), and the lock buckle outer positioning surface (71) on the lock buckle (7) abuts against the inner side (62) of the lock buckle limiting boss.

3. The automotive quick-connect connector with automatic locking function as claimed in claim 1, characterized in that: The concentric positioning boss (67) of the base (6) is used to assist the male connector in maintaining concentric insertion, so that the guide fillet (82) on the male connector (8) contacts the self-locking claw (74) on the lock buckle (7).

4. The automotive quick-connect connector with automatic locking function as claimed in claim 1, characterized in that: The guide fillet (82) on the male connector (8) is used to open the self-locking claw (74), so that the locking claw (76) is plastically deformed to both sides, and an interference fit is adopted between the sealing surface (81) and the self-locking claw (74) and the locking platform (75), and the self-locking claw (74) and the sealing surface (81) are eccentrically designed.

5. The automotive quick-connect connector with automatic locking function as claimed in claim 1, characterized in that: When the sealing surface (81) completely enters the sealing cavity (21) of the housing, the locking platform (75) is clamped in the clamping groove (83) of the male connector, the diameter of the clamping groove (83) is smaller than the sealing surface (81), the locking claw (76) rebounds and resets, the front end of the locking buckle (7) passes over the inner side (62) of the locking buckle limiting boss, and the locking buckle inner positioning surface (32) at the front end of the locking buckle clamps the outer side (63) of the locking buckle limiting boss.

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