Quick plug connector with low insertion force structure

Abstract

The utility model discloses a quick connector with a low insertion force structure, which is characterized in that a clamp spring is mounted on the quick connector, one end of the quick connector is provided with an insertion port, two sides of the insertion port are respectively provided with a clamping groove, the clamping grooves are respectively communicated with the inside of the quick connector through communication ports, the clamp spring comprises a top and two clamping arm parts, the tail ends of the clamping arm parts are respectively provided with a bending part, and the top of the top is provided with a clamping groove. One side of the quick-plug connector is fixedly connected with two protection baffles, and a containing groove is formed between each protection baffle and the quick-plug connector. According to the quick connector with the low insertion force structure, the two clamping arm parts of the clamping spring are linearly and parallelly arranged (or nearly parallelly arranged) and are matched with the clamping groove, so that the insertion force generated when the connector is inserted into the quick connector can be reduced. And meanwhile, by arranging the protection baffle, the clamp spring is protected and prevented from falling off, and meanwhile deformation of the clamp spring is not affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of quick-insertion connectors, and in particular relates to a quick-insertion connector with a low insertion force structure. Background Art

[0002] There are various types of quick-connect connectors that can be connected quickly. In existing quick-connect connectors, retaining springs are often used for limiting the position to prevent the plug from detaching during use. The retaining springs in existing quick-connect connectors are generally U-shaped or C-shaped. In order to improve their limiting function on the connector inserted into the quick-connect connector, their materials have low elasticity and high hardness. As a result, when inserting the connector into the quick-connect connector, a lot of force is required to overcome the elastic force of the retaining spring to deform it, so that the connector can be inserted into place and docked. When the connector needs to be disassembled, a lot of force is also required to pry open the retaining spring to complete the disassembly of the connector. Therefore, there is a need to improve the existing quick-connect connector structure. Utility Model Content

[0003] In order to solve the above technical problems, the technical solution adopted by the present invention is: a quick-insertion connector with a low insertion force structure, a retaining spring is installed on the quick-insertion connector, one end of the quick-insertion connector is provided with an insertion interface, and clamping grooves are respectively provided on both sides of the insertion interface, and the clamping grooves are respectively connected to the interior of the quick-insertion connector through connecting ports, and the retaining spring includes a top and two clamping arms respectively located at both ends of the top and fixedly connected to the top, the clamping arm portions are arranged in a straight line, and the ends of the clamping arm portions are respectively provided with bending portions, the clamping arm portions correspond one to one with the clamping grooves, the clamping arm portions extend into the corresponding clamping grooves, and the middle part of the clamping arm portions passes through the corresponding connecting ports and extends into the interior of the quick-insertion connector, and two protective baffles are fixedly connected to one side of the quick-insertion connector, and an accommodating groove for accommodating the bent portion is formed between the protective baffle and the quick-insertion connector.

[0004] As a preferred embodiment of the above technical solution, the end of the clamping arm part is bent upward to form a bending part, and the end of the other clamping arm part is bent downward to form a bending part. The bending parts are respectively located in the accommodating groove, and the accommodating groove has a lateral notch for the bending part to extend into.

[0005] As a preferred embodiment of the above technical solution, the top of the retaining spring is arched outward to form a raised portion, and the angles formed by the two ends of the top of the retaining spring and the clamping arm portion are obtuse angles.

[0006] As a preferred embodiment of the above technical solution, the protective baffle and the quick-connect connector are integrally formed, and the top, the clamping arm portion, and the bending portion are integrally formed.

[0007] As a preferred embodiment of the above technical solution, a sealing ring and a limiting ring are provided inside the quick-connect connector, and a guide surface is provided on the inner side of the limiting ring.

[0008] The beneficial effects of the present invention are as follows: the low insertion force quick connector of the present invention can reduce the insertion force when inserting the connector into the quick connector by arranging the two clamping arms of the clamping spring in a straight line and in parallel (or nearly parallel) manner, in conjunction with the clamping groove. At the same time, the protective baffle is provided to protect the clamping spring from falling off, while not affecting the deformation of the clamping spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural diagram of the utility model;

[0010] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0011] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model from another angle. DETAILED DESCRIPTION

[0012] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0013] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0014] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0015] like Figure 1-3As shown, a quick-insertion connector with a low insertion force structure is provided with a retaining spring. One end of the quick-insertion connector is provided with an insertion port 1, and clamping grooves 2 are respectively provided on both sides of the insertion port 1. The clamping grooves 2 are connected to the interior of the quick-insertion connector through a connecting port 3. The retaining spring includes a top 4 and two clamping arms 5 respectively located at both ends of the top 4 and fixedly connected to the top 4. The clamping arms 5 are arranged in a straight line, and the ends of the clamping arms 5 are respectively provided with a bending portion 6. The clamping arms 5 correspond to the clamping grooves 2 one by one. The clamping arms 5 extend into the corresponding clamping grooves 2, and the middle of the clamping arms 5 pass through the corresponding connecting port 3 and extend into the interior of the quick-insertion connector. Two protective baffles 7 are fixedly connected to one side of the quick-insertion connector, and a receiving groove 8 for accommodating the bending portion 6 is formed between the protective baffle 7 and the quick-insertion connector. The protective baffle 7 protects the ends of the clamping arms 5 to prevent external forces from directly acting on the clamping arms 5 and causing the retaining spring to loosen. When inserting a connector into the plug port 1, the receiving slot 8 provides sufficient space for the distal end of the clamping arm 5 to move, allowing the connector to easily overcome the spring force of the retaining spring and extend into the quick-connect connector. The clamping arms 5 are arranged in a straight line, with the two arms 5 being parallel or nearly parallel to each other. When the clamping arms 5 are squeezed and deformed into their outer shape, they can freely interact within the clamping slot 2, thereby reducing the insertion force of the connector.

[0016] Furthermore, the distal end of the clamping arm 5 is bent upward to form a bent portion 6, and the distal end of the other clamping arm 5 is bent downward to form a bent portion 6. The bent portions 6 are respectively located in a receiving slot 8. The receiving slot 8 has a lateral notch 9 for the bent portion 6 to extend into. The bent portion 6 prevents the retaining ring from falling off the quick-connect connector. The lateral notch 9 does not affect the bent portion 6 from entering and exiting the receiving slot 8.

[0017] Furthermore, the top portion 4 of the retaining spring is arched outward to form a raised portion 10. The angles 11 formed between the ends of the retaining spring's top portion 4 and the clamping arms 5 are obtuse. The raised portions 10 facilitate the use of tools to clamp the retaining spring for installation or removal. The obtuse angle 11 makes it easier for the clamping arms 5 to bend outward, reducing the insertion force required to open the two clamping arms 5 when inserting the connector.

[0018] Furthermore, the protective baffle 7 is integrally formed with the quick-connect connector, and the top 4, clamping arm portion 5, and bent portion 6 are integrally formed. The protective baffle 7 and quick-connect connector are integrally formed of plastic. The retaining spring formed by the top 4, clamping arm portion 5, and bent portion 6 is integrally formed of metal material.

[0019] Furthermore, the quick-connect connector is internally provided with a sealing ring 12 and a retaining ring 13. A guide surface 14 is provided on the inner side of the retaining ring 13. The sealing ring 12 is located below the retaining ring 13, which acts as a retaining force for the sealing ring 12. The retaining ring 13 forms an interference fit with the quick-connect connector. The guide surface 14 guides and positions the connector when it is inserted from the plug port 1 into the quick-connect connector.

[0020] It is worth mentioning that the technical features such as the sealing ring involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected by conventional means in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not be further elaborated.

[0021] The above describes in detail the preferred specific embodiments of the present invention. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solutions that can be obtained by technicians in this technical field through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of existing technologies should be within the scope of protection determined by the claims.

Claims

1. A quick-insertion connector with a low insertion force structure, with a retaining spring installed on the quick-insertion connector, characterized in that: One end of the quick-plug connector is provided with an insertion interface, and both sides of the insertion interface are respectively provided with clamping grooves, which are connected to the interior of the quick-plug connector through connecting ports. The clamping spring includes a top and two clamping arms respectively located at both ends of the top and fixedly connected to the top. The clamping arm portions are arranged in a straight line, and the ends of the clamping arm portions are respectively provided with bending portions. The clamping arm portions correspond to the clamping grooves one by one, and the clamping arm portions extend into the corresponding clamping grooves. The middle part of the clamping arm portions passes through the corresponding connecting ports and extends into the interior of the quick-plug connector. Two protective baffles are fixedly connected to one side of the quick-plug connector, and an accommodating groove for accommodating the bent portion is formed between the protective baffle and the quick-plug connector.

2. The quick-connect connector with low insertion force structure according to claim 1, characterized in that: The end of the clamp arm portion is bent upward to form a bent portion, and the end of the other clamp arm portion is bent downward to form a bent portion. The bent portions are respectively located in the accommodating grooves, and the accommodating grooves have lateral notches for the bent portions to extend into.

3. The quick-connect connector with low insertion force structure according to claim 1, characterized in that: The top of the clamping spring is arched outward to form an arched portion, and the angles formed by the two ends of the top of the clamping spring and the clamping arm portion are obtuse angles.

4. The quick-connect connector with low insertion force structure according to claim 1, characterized in that: The protective baffle and the quick-insert connector are integrally formed, and the top, the clamping arm portion, and the bending portion are integrally formed.

5. The quick-connect connector with low insertion force structure according to claim 1, characterized in that: A sealing ring and a limiting ring are provided inside the quick-insert connector, and a guide surface is provided on the inner side of the limiting ring.

Images