Self-locking quick-change fluid connector

Abstract

The utility model discloses a self-locking quick-change fluid connector, and belongs to the technical field of new energy automobile parts, the self-locking quick-change fluid connector comprises a connecting male head and a connecting female head, the outer surface of the connecting male head is provided with a limiting groove, the surface of the connecting female head is provided with a positioning opening, and the positioning opening is provided with a positioning locking plate through an elastic piece; and when the connecting male head is butted with the connecting female head, the positioning opening corresponds to the limiting groove, and the elastic piece drives the positioning locking plate to partially penetrate through the positioning opening to be embedded into the limiting groove. The combined connecting mode is further optimized, after the connecting male head is inserted into the connecting female head, the positioning locking plate is clamped into the limiting groove of the connecting male head to form limiting, the structure can achieve rapid combination without precise alignment, separation is achieved through one-key pressing during separation, and the requirement for the operation space is low.

Description

Technical Field

[0001] The present application relates to the technical field of new energy vehicle components, and in particular to a self-locking quick-change fluid connector. Background Art

[0002] In the era of rapid development of the new energy industry, as supporting infrastructure, super charging piles and energy storage equipment use various cooling media to adapt to the high heat generated by high-voltage platforms. In daily maintenance and care, in order to prevent the cooling medium from leaking out and damaging the equipment, a fluid quick-change connector with a two-way self-sealing seal is usually used at the pipeline connection as a bridge device for connecting and disconnecting the medium.

[0003] However, due to the narrow reserved space on some supercharging piles and energy storage equipment, the fluid quick-change connector needs to have the function of rapid docking and separation during daily maintenance, and even has certain blind insertion requirements. Related prior art, such as the Chinese patent application "A double-sealed liquid-cooled connector", application number: CN202322150552.8, discloses a double-sealed liquid-cooled connector, including a connector head 1, the top wall of the connector head 1 is fixedly connected to a connecting seat 1, the top wall of the connecting seat 1 is fixedly connected to a connecting pipe 1, a side wall of the connecting pipe is fixedly connected to a limiting claw 1, a side wall of the connecting pipe is fixedly connected to a limiting plate 1, a connector head 2 is arranged on the top of the connector head 1, a connecting seat 2 is fixedly connected to the bottom wall of the connecting seat 2, a connecting pipe 2 is fixedly connected to the bottom wall of the connecting seat 2, and a side wall of the connecting pipe 2 is fixedly connected to a limiting plate 2. In the utility model, the effect of easy installation is achieved through the cooperation between the structures such as the connector head 1, the connecting seat 1, the limiting claw 1, the limiting plate 1 and the connecting pipe 2.

[0004] The technical solution of the above patent application solves the problem of low installation efficiency to a certain extent. However, when the claw is screwed in for connection, the claw structure needs to allow the limit claw to be aligned at the screw-in port before assembly, which is not conducive to maintenance and other operations in a small space and in an environment with poor visibility. In addition, there are currently many connection methods and structures at both ends of the quick-change connector, including threads, hoses, plastic quick plugs, etc. Different connection methods have different problems: for example, the traditional steel ball connection structure requires all-metal machining with low efficiency, high cost, and high processing requirements for equipment; the all-plastic structure has a high mold investment and a long mold development cycle, and the plastic material thread cannot meet the installation torque requirements. The steel ball limit structure uses plastic material and the pressure resistance performance will be reduced. Utility Model Content

[0005] The technical problem to be solved by the present application is to provide a self-locking quick-change fluid connector, further optimizing the combined connection method. After the male connector is inserted into the female connector, the positioning locking piece is inserted into the limiting groove of the male connector to form a limit. This structure can achieve rapid combination without precise alignment, and can be separated by pressing one button, with low requirements for operating space.

[0006] The technical solution adopted in the present application is: a self-locking quick-change fluid connector, including a connecting male head and a connecting female head, a limiting groove is provided on the outer surface of the connecting male head, a positioning opening is provided on the surface of the connecting female head, and a positioning locking piece is installed at the positioning opening through an elastic member; when the connecting male head and the connecting female head are connected, the positioning opening corresponds to the limiting groove, and the elastic member drives the positioning locking piece to partially pass through the positioning opening and embed into the limiting groove.

[0007] Compared with the prior art, the advantage of the present application is that the present application adjusts the connection method, and adjusts the original screw-in claw structure and steel ball structure to a structure with a positioning lock plate for limiting. The claw structure needs to be held by hand to be screwed out and separated, and the steel ball needs multiple fingers to turn the unlocking ring to exit, while the positioning lock plate can be separated with one finger, which is very convenient to operate in a small space. At the same time, the lock plate structure can be replaced with plastic in terms of material, which is of great help in reducing costs and weight. By adjusting the connection method, the present application can achieve blind insertion combination.

[0008] As a further preferred solution, in order to meet the requirements of cost reduction and various customized interface selections, the main material of the male connector and the female connector can be replaced by plastic, and the connection structure at both ends of the male connector and the female connector can be processed using metal parts. The interface appearance of the male connector and the female connector can be quickly matched according to customized requirements using metal parts, reducing the investment in early molds.

[0009] In some embodiments of the present application, a mounting seat is provided on the outer surface of the female connector, and the positioning locking piece is installed on the mounting seat. The positioning locking piece is movable relative to the mounting seat under force.

[0010] In some embodiments of the present application, the elastic member is installed at the mounting seat and connected to the positioning lock plate, and the elastic member applies a force to the positioning lock plate to move radially toward the center; the elastic member is a spring, which is the preferred structural solution of the present application.

[0011] In some embodiments of the present application, the limiting groove is a circular groove structure arranged around the outer surface of the male connector. That is, the above structure allows the male connector and the female connector to be inserted into each other at any relative rotation angle, and the positioning lock piece can be inserted into the limiting groove after passing through the positioning opening.

[0012] In some embodiments of the present application, the positioning locking plate has a runway-shaped sheet structure, and a through hole adapted to the inner hole of the connecting female head is provided at the center of the positioning locking plate; when the through hole of the positioning locking plate is coaxial with the connecting female head, the connecting male head and the connecting female head are pluggable; when the positioning locking plate is partially embedded in the limiting groove, the through hole of the positioning locking plate is staggered with the inner hole of the connecting female head.

[0013] In some embodiments of the present application, the positioning opening is adapted to the positioning locking piece structure, and the positioning locking piece can be subjected to force through the positioning opening along its length direction, and the positioning opening radially penetrates the entire wall surface of the female connector. This is a preferred solution of the present application, and the structure of the positioning opening also limits the positioning locking piece, ensuring the moving direction of the positioning locking piece subjected to force.

[0014] In some embodiments of the present application, the end of the positioning lock sheet close to the mounting seat is bent to form a pressing portion, and the pressing portion is connected to the mounting seat through an elastic member, and the elastic member is in a compressed state, and the elastic member applies an outward thrust to the pressing portion. That is, in the solution of the present application, the end of the positioning lock sheet away from the mounting seat is embedded in the limiting groove to achieve the locking of the male connector and the female connector. When unlocking is required, the operator only needs to press the pressing portion of the positioning lock sheet to drive the positioning lock sheet to move to exit the lock.

[0015] In some embodiments of the present application, the positioning lock piece is provided with barbs on both sides of one end away from the mounting seat, and the inner wall surface of the female connector is provided with a stopper corresponding to the barbs; the positioning lock piece is embedded in the stopper groove of the male connector, and the barbs are engaged with the stopper. In the present application, the provision of the barbs and the stopper has the effect of positioning and preventing falling off.

[0016] In some embodiments of the present application, the mounting seat is provided with a mounting post for mounting a spring. The spring is installed by adding the mounting post, which facilitates assembly.

[0017] In some embodiments of the present application, a limiting plate is provided on the mounting seat, and when the positioning locking plate is moved by an external force until the pressing portion contacts the limiting plate, the positioning locking plate moves to the limit position of the travel. In the present application, in order to prevent the positioning locking plate from excessively moving when the operator presses the positioning locking plate to unlock, resulting in repeated locking of the male connector and the female connector, the present application adds a limiting plate to provide the operator with a limit position to press into place. When the operator presses the positioning locking plate until it cannot move, the male connector and the female connector are successfully unlocked.

[0018] The above-mentioned implementation modes can be combined arbitrarily based on the common knowledge in the art. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present application will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present application. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0020] Figure 1 This is a schematic diagram of the structure of this application in the plug-in state;

[0021] Figure 2 This is a schematic diagram of the structure of this application in a separated state;

[0022] Figure 3 This is a cross-sectional view of the positioning lock piece in the plugged state of the present application;

[0023] Figure 4 This is a schematic diagram of the partial structure of the positioning lock piece of this application in a disassembled state.

[0024] Among them, the specific descriptions of the accompanying drawings are as follows: 1. connecting male head; 2. connecting female head; 3. limiting groove; 4. positioning port; 5. positioning lock plate; 5a, pressing part; 6. elastic part; 7. mounting seat; 8. through hole; 9. barb; 10. limiting part; 11. mounting column; 12. limiting plate. DETAILED DESCRIPTION

[0025] The present application is described in detail below in conjunction with the accompanying drawings.

[0026] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0027] A self-locking quick-change fluid connector, such as Figure 1 , Figure 2 As shown: it includes a connecting male head 1 and a connecting female head 2, the outer surface of the connecting male head 1 is provided with a limiting groove 3, the surface of the connecting female head 2 is provided with a positioning opening 4, and a positioning locking piece 5 is installed at the positioning opening 4 through an elastic member 6; when the connecting male head 1 and the connecting female head 2 are docked, the positioning opening 4 corresponds to the limiting groove 3, and the elastic member 6 drives the positioning locking piece 5 to partially pass through the positioning opening 4 and embed into the limiting groove 3.

[0028] The present application adjusts the connection mode, and adjusts the original screw-in claw structure and steel ball structure to a structure for limiting the positioning lock piece 5. The claw structure needs to be held by hand to be screwed out and separated, and the steel ball needs multiple fingers to turn the unlocking ring to exit, while the positioning lock piece 5 can be separated with one finger, which is very convenient to operate in a small space. At the same time, the lock piece structure can be replaced by plastic in terms of material, which is of great help in reducing costs and weight. The present application can achieve blind insertion combination by adjusting the connection mode.

[0029] As a further preferred solution, in order to meet the requirements of cost reduction and various customized interface selections, the main material of the male connector 1 and the female connector 2 can be replaced by plastic, and the connection structure at both ends of the male connector 1 and the female connector 2 is processed using metal parts. The interface appearance of the male connector 1 and the female connector 2 can be quickly matched using metal parts according to customized requirements, thereby reducing the investment in early molds.

[0030] Embodiment 2, as Figures 1 to 4 As shown, the outer surface of the female connector 2 is provided with a mounting seat 7, the positioning lock piece 5 is mounted on the mounting seat 7, and the positioning lock piece 5 is movable relative to the mounting seat 7 under force. The elastic member 6 is mounted on the mounting seat 7 and connected to the positioning lock piece 5, and the elastic member 6 applies a force to the positioning lock piece 5 to move radially toward the center; the elastic member 6 is a spring. This is the preferred structural solution of the present application.

[0031] The limiting groove 3 is a circular groove structure arranged around the outer surface of the male connector 1. That is, the above structure allows the male connector 1 and the female connector 2 to be inserted at any relative rotation angle, and the positioning lock piece 5 can be partially inserted into the limiting groove 3 after passing through the positioning opening 4.

[0032] The positioning locking piece 5 is a runway-shaped sheet structure, and a through hole 8 adapted to the inner hole of the connecting female head 2 is opened in the center of the positioning locking piece 5; when the through hole 8 of the positioning locking piece 5 is coaxial with the connecting female head 2, the connecting male head 1 and the connecting female head 2 can be plugged in and out; when the positioning locking piece 5 is partially embedded in the limiting groove 3, the through hole 8 of the positioning locking piece 5 is staggered with the inner hole of the connecting female head 2.

[0033] The positioning opening 4 is adapted to the structure of the positioning locking piece 5, and the positioning locking piece 5 can pass through the positioning opening 4 along its length direction when subjected to force, and the positioning opening 4 radially penetrates the entire wall surface of the female connector 2. As a preferred solution of the present application, the structure of the positioning opening 4 also limits the positioning locking piece 5, ensuring the moving direction of the positioning locking piece 5 under force.

[0034] The end of the positioning lock piece 5 close to the mounting seat 7 is bent to form a pressing portion 5a, and the pressing portion 5a is connected to the mounting seat 7 through an elastic member 6. The elastic member 6 is in a compressed state, and the elastic member 6 applies an outward thrust to the pressing portion 5a. That is, in the solution of the present application, the end of the positioning lock piece 5 away from the mounting seat 7 is embedded in the limiting groove 3 to achieve the locking of the connecting male head 1 and the connecting female head 2. When unlocking is required, the operator only needs to press the pressing portion 5a of the positioning lock piece 5 to drive the positioning lock piece 5 to move to exit the locking.

[0035] The positioning lock piece 5 is provided with barbs 9 on both sides of one end away from the mounting seat 7, and the inner wall surface of the female connector 2 is provided with a stopper 10 corresponding to the barbs 9; the positioning lock piece 5 is embedded in the stopper groove 3 of the male connector 1, and the barbs 9 are engaged with the stopper 10. In the present application, the arrangement of the barbs 9 and the stopper 10 plays a role in positioning and preventing falling off.

[0036] The mounting seat 7 is provided with a mounting post 11 for mounting a spring. The spring is installed by adding the mounting post 11, which is convenient for assembly.

[0037] The mounting seat 7 is provided with a limit plate 12. When the positioning lock plate 5 is moved by an external force until the pressing portion 5a contacts the limit plate 12, the positioning lock plate 5 moves to the limit position of the stroke. In the present application, in order to prevent the positioning lock plate 5 from excessively moving when the operator presses the positioning lock plate 5 to unlock, resulting in repeated locking of the connecting male head 1 and the connecting female head 2, the present application adds a limit plate 12 to provide the operator with a limit position to press into place. When the operator presses the positioning lock plate 5 until it cannot move, the connecting male head 1 and the connecting female head 2 are successfully unlocked.

[0038] The rest of the content of the second embodiment is the same as that of the first embodiment.

[0039] The present application is described in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A self-locking quick-change fluid connector, characterized in that: The invention comprises a male connector (1) and a female connector (2), wherein a limiting groove (3) is provided on the outer surface of the male connector (1), and a positioning opening (4) is provided on the surface of the female connector (2), wherein a positioning locking piece (5) is installed at the positioning opening (4) through an elastic piece (6); when the male connector (1) and the female connector (2) are docked, the positioning opening (4) corresponds to the limiting groove (3), and the elastic piece (6) drives the positioning locking piece (5) to partially pass through the positioning opening (4) and embed into the limiting groove (3).

2. A self-locking quick-change fluid connector according to claim 1, characterized in that: The outer surface of the female connector (2) is provided with a mounting seat (7), and the positioning locking piece (5) is mounted on the mounting seat (7). The positioning locking piece (5) is movable relative to the mounting seat (7) under force.

3. A self-locking quick-change fluid connector according to claim 2, characterized in that: The elastic member (6) is installed on the mounting seat (7) and connected to the positioning lock plate (5). The elastic member (6) applies a force to the positioning lock plate (5) to move radially toward the center. The elastic member (6) is a spring.

4. A self-locking quick-change fluid connector according to claim 1, characterized in that: The limiting groove (3) is a circular groove structure arranged around the outer surface of the connecting male head (1).

5. A self-locking quick-change fluid connector according to claim 1, characterized in that: A through hole (8) adapted to the inner hole of the connecting female head (2) is provided at the center of the positioning locking piece (5); when the through hole (8) of the positioning locking piece (5) and the connecting female head (2) are in a coaxial state, the connecting male head (1) and the connecting female head (2) can be plugged in and out; when the positioning locking piece (5) is partially embedded in the limiting groove (3), the through hole (8) of the positioning locking piece (5) and the inner hole of the connecting female head (2) are staggered.

6. A self-locking quick-change fluid connector according to claim 5, characterized in that: The positioning opening (4) is adapted to the structure of the positioning locking piece (5), and the positioning locking piece (5) can be forced to pass through the positioning opening (4) along its length direction. The positioning opening (4) radially penetrates the entire wall surface of the connecting female head (2).

7. A self-locking quick-change fluid connector according to claim 2, characterized in that: One end of the positioning lock piece (5) close to the mounting seat (7) is bent to form a pressing portion (5a), and the pressing portion (5a) is connected to the mounting seat (7) via an elastic member (6). The elastic member (6) is in a compressed state, and the elastic member (6) applies an outward thrust to the pressing portion (5a).

8. The self-locking quick-change fluid connector according to claim 1, characterized in that: The positioning locking piece (5) is provided with barbs (9) on both sides of one end away from the mounting seat (7), and the inner wall surface of the connecting female head (2) is provided with a limiting piece (10) corresponding to the barbs (9); when the positioning locking piece (5) is embedded in the limiting groove (3) of the connecting male head (1), the barbs (9) are engaged with the limiting piece (10).

9. A self-locking quick-change fluid connector according to claim 2, characterized in that: The mounting seat (7) is provided with a mounting column (11) for mounting a spring.

10. A self-locking quick-change fluid connector according to claim 7, characterized in that: The mounting seat (7) is provided with a limiting plate (12), and when the positioning lock plate (5) is moved by an external force until the pressing portion (5a) contacts the limiting plate (12), the positioning lock plate (5) moves to the limit position of the stroke.

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