Anti-loosening structure applied to stud type terminal

Abstract

The utility model provides an anti-loosening structure applied to a stud type terminal, which comprises a plastic shell main body, two sides of the plastic shell main body are respectively provided with an inclined plane, the lower part of each inclined plane is connected with an extension end, the extension end is L-shaped, the short edge of the extension end is connected with the end part of the plastic shell main body, the long edge of the extension end faces the middle of the plastic shell main body, and the inclined plane is arranged on the plastic shell main body. The long edge of the extension end and the bottom of the plastic shell main body form a guide rail groove which is connected with a guide rail; a mounting hole is formed in the short edge of the extension end and is communicated with the guide rail groove, a spring is fixed in the mounting hole and is in interference fit with the guide rail, a fixing hole is formed in the joint of the short edge of the extension end and the long edge of the extension end and is communicated with the mounting hole, a cylindrical pin is arranged in the fixing hole, and the cylindrical pin abuts against the spring. According to the utility model, the spring and the cylindrical pin are added, the contraction performance of the spring is utilized, and through the interference fit of the spring and the guide rail, the non-loosening function of the stud type terminal in a vibration environment is realized.

Description

Technical Field

[0001] The utility model relates to the fields of electrical circuits and rail transportation, and in particular to an anti-loosening structure applied to a stud type terminal. Background Art

[0002] With the popularity of electronic devices, stud terminals have become an important tool for connecting circuit components and power supplies. They conduct current in the forward direction and are connected as loads in the loop. Stud terminals can not only quickly connect circuits, but also replace circuit boards quickly and easily. With the continuous advancement of technology, stud terminals used in electronic products have also been continuously developed to meet the needs of different products.

[0003] In general, stud terminals play a very important role in electronic products. In the process of continuous development, stud terminals have also made great progress and improvement. With the continuous advancement of science and technology, stud terminals have been continuously improved in terms of manufacturing materials, shape and size, operation and use, etc., which has improved the convenience, reliability and safety of operation. In the future, with the continuous development of various electronic products, the demand for stud terminals will also be more diversified. Therefore, enterprises need to keep up with the market demand, lead the development direction of stud terminals, and contribute to the industry.

[0004] The installation of existing stud terminals relies on the clearance between the slot and the guide rail. This matching method is not strong enough and the terminals are easy to loosen in a vibrating environment such as rail transportation. Utility Model Content

[0005] In view of the problems existing in the prior art, the utility model provides an anti-loosening structure applied to a stud terminal to solve at least one of the above-mentioned technical problems.

[0006] The technical solution of the utility model is: an anti-loosening structure applied to a stud terminal, comprising a plastic shell body, characterized in that an inclined surface is respectively provided on both sides of the plastic shell body, and an extended end is connected below the inclined surface, the extended end is L-shaped, the short side of the extended end is connected to the end of the plastic shell body, the long side of the extended end faces the middle of the plastic shell body, the long side of the extended end and the bottom of the plastic shell body form a guide groove, and the guide groove is connected with a guide rail;

[0007] A mounting hole is provided on the short side of the extended end, the mounting hole is connected with the guide rail groove, a spring is fixed in the mounting hole, the spring is interference fit with the guide rail, a fixing hole is provided at the connection between the short side of the extended end and the long side of the extended end, the fixing hole is connected with the mounting hole, a cylindrical pin is provided in the fixing hole, and the cylindrical pin is against the spring.

[0008] The utility model adds a spring and a cylindrical pin, utilizes the contraction performance of the spring, and achieves the function of preventing the stud terminal from loosening in a vibrating environment through the interference fit between the spring and the guide rail. The cylindrical pin can position the spring. First, the spring is placed in the installation hole, then the cylindrical pin is installed in the fixing hole, and finally the stud terminal is installed on the guide rail to complete the assembly.

[0009] Further preferably, the opening direction of the mounting hole is perpendicular to the opening direction of the fixing hole, thereby ensuring the positioning effect of the cylindrical pin.

[0010] Further preferably, the length of the cylindrical pin is smaller than the depth of the fixing hole.

[0011] The cylindrical pin has chamfers on both sides and a through hole in the middle, making it easy to take and disassemble.

[0012] Further preferably, the guide rail is a U-shaped plate, and an outwardly extending edge is provided at the opening of the guide rail, and the extended edge is slidably connected to the guide rail groove.

[0013] Thereby, the contact surface between the guide rail and the plastic shell body can be ensured, and the connection is more stable.

[0014] Further preferably, both ends of the cylindrical pin are provided with cylindrical chamfers, and one end is inserted into the fixing hole to position the spring, so that the installation is convenient and the cylindrical pin is not easy to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure decomposition of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 3 It is a three-dimensional schematic diagram of the spring of the utility model;

[0018] Figure 4 It is a three-dimensional schematic diagram of the cylindrical pin of the utility model;

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the guide rail of the utility model.

[0020] In the figure: 1. Plastic shell body; 2. Extension end; 3. Mounting hole; 4. Spring; 5. Fixing hole; 6. Cylindrical pin; 7. Guide rail groove; 8. Guide rail; 9. Extension edge; 10. Chamfer. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings.

[0022] like Figure 1-Figure 5As shown, an anti-loosening structure applied to a stud terminal comprises a plastic shell body 1, with an inclined surface on both sides of the plastic shell body, an extended end 2 is connected to the lower part of the inclined surface, the extended end is L-shaped, the short side of the extended end is connected to the end of the plastic shell body, the long side of the extended end faces the middle of the plastic shell body, the long side of the extended end and the bottom of the plastic shell body form a guide groove 7, and a guide rail 8 is connected to the guide groove; a mounting hole 3 is provided on the short side of the extended end, the mounting hole is connected to the guide groove, a spring 4 is fixed in the mounting hole, the spring and the guide rail are interference fit, a fixing hole 5 is provided at the connection between the short side of the extended end and the long side of the extended end, the fixing hole is connected to the mounting hole, a cylindrical pin 6 is provided in the fixing hole, and the cylindrical pin is against the spring.

[0023] The utility model adds a spring and a cylindrical pin, utilizes the contraction performance of the spring, and achieves the function of preventing the stud terminal from loosening in a vibrating environment through the interference fit between the spring and the guide rail. The cylindrical pin can position the spring. First, the spring is placed in the installation hole, then the cylindrical pin is installed in the fixing hole, and finally the stud terminal is installed on the guide rail to complete the assembly.

[0024] Further preferably, the opening direction of the mounting hole is perpendicular to the opening direction of the fixing hole, thereby ensuring the positioning effect of the cylindrical pin.

[0025] Preferably, the length of the cylindrical pin is less than the depth of the fixing hole. The cylindrical pin is chamfered on both sides and has a through hole in the middle, so that it is easy to take and disassemble.

[0026] Further preferably, the guide rail is a U-shaped plate, and the opening of the guide rail is provided with an outward extension edge 9, which is slidably connected to the guide rail groove, so as to ensure the contact surface between the guide rail and the plastic shell body, and the connection is more stable.

[0027] Further preferably, both ends of the cylindrical pin are respectively provided with cylindrical chamfers 10. One end is inserted into the fixing hole to position the spring, which is convenient for installation and the cylindrical pin is not easy to fall off.

[0028] The above are only preferred implementations of the present invention. It should be pointed out that for ordinary technical personnel in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An anti-loosening structure applied to a stud terminal, comprising a plastic shell body, characterized in that: The two sides of the plastic shell body are respectively provided with an inclined surface, and an extended end is connected to the lower part of the inclined surface, and the extended end is L-shaped, and the short side of the extended end is connected to the end of the plastic shell body, and the long side of the extended end faces the middle of the plastic shell body. The long side of the extended end and the bottom of the plastic shell body form a guide groove, and the guide groove is connected to the guide rail; A mounting hole is provided on the short side of the extended end, the mounting hole is connected with the guide rail groove, a spring is fixed in the mounting hole, the spring is interference fit with the guide rail, a fixing hole is provided at the connection between the short side of the extended end and the long side of the extended end, the fixing hole is connected with the mounting hole, a cylindrical pin is provided in the fixing hole, and the cylindrical pin is against the spring.

2. The anti-loosening structure used in a stud terminal according to claim 1, characterized in that: The opening direction of the installation hole is perpendicular to the opening direction of the fixing hole.

3. The anti-loosening structure used in a stud terminal according to claim 1, characterized in that: The length of the cylindrical pin is smaller than the depth of the fixing hole.

4. The anti-loosening structure used in a stud terminal according to claim 1, characterized in that: The guide rail is a U-shaped plate body, and an outward extension edge is provided at the opening of the guide rail, and the extension edge is slidably connected to the guide rail groove.

5. The anti-loosening structure used in a stud terminal according to claim 3, characterized in that: Both ends of the cylindrical pin are respectively provided with cylindrical chamfers.

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