Lead anti-loosening mechanism for wiring terminal

Abstract

The utility model discloses a lead anti-loosening mechanism for a wiring terminal, which belongs to the technical field of wiring terminals and comprises a base, the wiring terminal is adhered to the upper portion of the base through self-adhesive glue, and an anti-loosening mechanism capable of preventing a lead from loosening is arranged at the position, corresponding to an interface of the wiring terminal, of the upper portion of the base. The anti-loosening mechanism comprises a connecting column A, a U-shaped frame, a connecting plate, a positioning screw rod, a connecting rod and a clamping plate. According to the utility model, through the anti-loosening mechanism, the wiring terminal and the base are installed together, the U-shaped frame is clamped on the connecting column A at the interface where the wire is installed, the U-shaped frame is installed on the base, then the two positioning screw rods are screwed, the connecting rod moves linearly along the positioning screw rods, and the two clamping plates are pushed to clamp the two sides of the wire. And the wire at the interface is clamped and fixed, so that the wire is prevented from being separated from the wiring terminal under the influence of gravity, and the wire is effectively prevented from loosening.

Description

Technical Field

[0001] The utility model belongs to the technical field of wiring terminals, in particular to a wire loosening prevention mechanism for wiring terminals. Background Art

[0002] The terminal block is an accessory product used to achieve electrical connection. It is classified as a connector in the industry. The terminal block can be divided into PCB terminals, hardware terminals, nut terminals, spring terminals, etc. according to the terminal material.

[0003] Among them, after searching, it was found that there is an application number CN202223218950.0, which discloses a multi-terminal wiring protection structure, including a mounting body, a mounting hole is opened on the mounting body, and a wiring terminal protection is screwed in the mounting body. It has a setting through a mounting hole, a connecting groove, a protective plate, a baffle, a socket, a plug rod, an adjustment groove, a toggle plate and a first spring. When the protective plate is pushed to be placed in the connecting groove, when the plug rod corresponds to the socket, the elastic force of the first spring pushes the plug rod to be inserted into the socket to limit the protective plate, thereby exposing the wiring terminals in the mounting body to the outside, so that the protective mechanism of the wiring terminals is more convenient to disassemble and assemble, and the equipment will not be damaged due to disassembly and assembly. Through the setting of the second spring, when the protective plate blocks the mounting hole, the elastic force of the second spring can limit the protective plate in the mounting hole, thereby improving the stability of the protective plate in the mounting hole.

[0004] However, after research, it was found that: there is no structure on the outside of the terminal to assist in fixing the wires at the interface, the wires are easily loosened due to their own gravity, and the terminals after connecting the wires are exposed to the outside of the protective structure, which is easily caused by the expansion of external objects, causing the wires to loosen, thereby affecting the connection effect of the wires. Therefore, a new device is provided to solve this problem. Utility Model Content

[0005] The utility model aims to provide a wire loosening prevention mechanism for a wiring terminal in order to solve the above-mentioned problem that the wire cannot be prevented from loosening.

[0006] The technical solution adopted by the utility model is as follows: a wire loosening prevention mechanism for a wiring terminal, comprising a base, on which a wiring terminal is bonded by self-adhesive glue;

[0007] An anti-loosening mechanism is arranged above the base at a position corresponding to the connection terminal interface to prevent the wire from loosening.

[0008] Among them, the anti-loosening mechanism includes a connecting column A, a U-shaped frame, a connecting plate, a positioning screw, a connecting rod and a splint. A connecting column A is symmetrically fixedly installed above the base corresponding to the terminal interface, and the other end of the connecting column A is threadedly connected to a limiting nut A. A U-shaped frame is movably connected to the base above the terminal interface, and one side of the U-shaped frame is symmetrically provided with connecting holes A that fit with the connecting column A. Connecting plates are symmetrically fixedly installed on both sides of the U-shaped frame, and a connecting rod is slidably connected to the surface of the connecting plate through a through hole. A splint is fixedly installed on one end of the connecting rod, and a positioning screw is rotatably connected to one side of the connecting plate, and the other end of the connecting rod is nested and threadedly connected to the outside of the positioning screw. The splint is arranged in an arc shape, the splint is made of PVC, and a rubber pad is bonded to the inner wall of the splint.

[0009] Among them, a connecting column B is symmetrically fixedly installed on one side of the connecting plate close to the terminal interface, and the other end of the connecting column B is threadedly connected to a limiting nut B. A protective shell is movably connected to one side of the connecting plate close to the terminal interface, and connecting holes B that fit with the connecting column B are symmetrically arranged on one side of the protective shell. The protective shell is U-shaped, and a groove is arranged on the side of the protective shell facing the splint. The material of the protective shell is PVC.

[0010] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0011] 1. In the utility model, the terminal block is installed together with the base through the anti-loosening mechanism, the U-shaped frame is clamped on the connecting column A at the interface where the wire is installed, and the U-shaped frame is installed on the base. Then, the two positioning screws are screwed, and the connecting rod moves linearly along the positioning screws, pushing the two clamping plates to clamp on both sides of the wire, clamping and fixing the wire at the interface, avoiding the wire from being separated from the terminal block due to the influence of gravity, and effectively preventing the wire from loosening.

[0012] 2. In the present invention, the U-shaped frame only needs to be installed at the interface where the wire is installed, and the U-shaped frame does not need to be installed at the interface where the wire is not installed, thereby avoiding waste and making effective use of the U-shaped frame.

[0013] 3. In the utility model, after the wire is fixed, the connection hole B of the protective shell is stuck on the outside of the corresponding connection column B, and the limit nut B is screwed on the end of the connection column B. The protective shell is just stuck at the interface of the terminal block connecting the wire to shield and protect the interface. The wire extends outward from the groove on one side of the protective shell to prevent external objects from contacting the interface and causing the wire to loosen, thereby preventing the loosening effect from being better. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of a partial three-dimensional structure of the utility model;

[0015] Figure 2For the utility model Figure 1 A schematic diagram of the enlarged structure at point A;

[0016] Figure 3 This is a schematic diagram of the overall top-view cross-sectional structure of the utility model;

[0017] Figure 4 For the utility model Figure 3 A schematic diagram of the enlarged structure at B;

[0018] Figure 5 It is a schematic diagram of the side section structure of part of the utility model;

[0019] Figure 6 For the utility model Figure 5 A schematic diagram of the enlarged structure at point C.

[0020] Markings in the figure: 1, terminal block; 101, base; 1011, connecting column A; 102, U-shaped frame; 1021, connecting plate; 1022, positioning screw; 1023, connecting rod; 1024, clamping plate; 103, protective shell; 1031, connecting column B. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the utility model:

[0023] Reference Figure 1-6 , a wire loosening prevention mechanism for a wiring terminal, comprising a base 101, on which a wiring terminal 1 is bonded by self-adhesive;

[0024] An anti-loosening mechanism is provided above the base 101 at a position corresponding to the interface of the wiring terminal 1 to prevent the wire from loosening.

[0025] Reference Figure 1-6In this embodiment, the anti-loosening mechanism includes a connecting column A1011, a U-shaped frame 102, a connecting plate 1021, a positioning screw 1022, a connecting rod 1023 and a clamping plate 1025. The connecting column A1011 is symmetrically fixedly installed at the top of the base 101 corresponding to the interface of the wiring terminal 1, and the other end of the connecting column A1011 is threadedly connected to the limiting nut A. The U-shaped frame 102 is movably connected to the top of the base 101 corresponding to the interface of the wiring terminal 1, and the U-shaped frame 102 is fixedly installed at the top of the base 101 corresponding to the interface of the wiring terminal 1. The U-shaped frame 102 is symmetrically provided with connection holes A that fit with the connection column A1011. The U-shaped frame 102 is symmetrically fixed with connection plates 1021 on both sides. The surface of the connection plate 1021 is slidably connected with a connection rod 1023 through a through hole. A clamping plate 1025 is fixedly installed at one end of the connection rod 1023. A positioning screw 1022 is rotatably connected to one side of the connection plate 1021, and the other end of the connection rod 1023 is nested and threadedly connected to the outside of the positioning screw 1022. The clamping plate 1025 is arranged in an arc shape.

[0026] The U-shaped frame 102 is installed on the base 101, and the U-shaped frame 102 is installed on the interface where the wire is installed. The upper limit nut is screwed on the end of the connecting column A1011, and the U-shaped frame 102 is installed on the base 101. Then, the two positioning screws 1022 are screwed, and the connecting rod 1023 moves linearly along the positioning screws 1022, pushing the two clamping plates 1025 to clamp on both sides of the wire, clamping and fixing the wire at the interface to prevent the wire from detaching from the terminal 1 due to gravity, and effectively preventing the wire from loosening. It is only necessary to install the U-shaped frame 102 at the interface where the wire is installed, and the U-shaped frame 102 is not required to be installed at the interface where the wire is not installed, so as to avoid waste and make the U-shaped frame 102 effectively utilized.

[0027] Reference Figure 1-4 In this embodiment, the material of the clamping plate 1025 is PVC, and a rubber pad is bonded to the inner wall of the clamping plate 1025. The clamping plate 1025 made of PVC is insulated, and the rubber pad is elastic, so as to prevent the clamping plate 1025 from damaging the surface of the wire.

[0028] Reference Figure 1-6 In this embodiment, a connecting column B1031 is symmetrically fixedly installed on one side of the connecting plate 1021 close to the interface of the wiring terminal 1, and the other end of the connecting column B1031 is threadedly connected to a limiting nut B, and a protective shell 103 is movably connected to one side of the connecting plate 1021 close to the interface of the wiring terminal 1, and a connecting hole B that fits the connecting column B1031 is symmetrically arranged on one side of the protective shell 103, and the protective shell 103 is U-shaped, and a groove is arranged on the side of the protective shell 103 facing the clamping plate 1025, and the material of the protective shell 103 is PVC;

[0029] After fixing the wire, clamp the connection hole B of the protective shell 103 on the outside of the corresponding connecting column B1031, and screw the limit nut B on the end of the connecting column B1031. The protective shell 103 is just clamped on the interface of the terminal 1 connecting the wire to shield and protect the interface. The wire extends outward from the groove on one side of the protective shell 103 to prevent external objects from contacting the interface and causing the wire to loosen, thereby achieving a better anti-loosening effect.

[0030] Working principle: First, tear off the anti-sticking paper on the base 101 to let the self-adhesive glue leak out, align the bottom of the terminal block 1 with the self-adhesive glue, install the terminal block 1 and the base 101 together, then install the wire to the interface of the terminal block 1, clamp the U-shaped frame 102 on the connecting column A1011 at the interface where the wire is installed, screw the upper limit nut on the end of the connecting column A1011, install the U-shaped frame 102 on the base 101, then screw the two positioning screws 1022, and the connecting rod 1023 moves linearly along the positioning screws 1022, pushing the two clamps 1025 to clamp on both sides of the wire. The clamps 1025 made of PVC are insulated, and the rubber pads are elastic to prevent the clamps 1025 from causing damage to the surface of the wire. The U-shaped frame 102 does not need to be installed at the interface where the wire is not installed, so as to avoid waste and make effective use of the U-shaped frame 102. Then, the connecting hole B of the protective shell 103 is clamped on the outside of the corresponding connecting column B1031, and the limiting nut B is screwed on the end of the connecting column B1031. The protective shell 103 is just clamped on the interface where the terminal 1 is connected to the wire, and the interface is shielded and protected. The wire extends outward from the groove on one side of the protective shell 103 to prevent external objects from contacting the interface and causing the wire to loosen, and the anti-loosening effect is better.

[0031] The above description is only a preferred embodiment of the present invention and is 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. A wire loosening prevention mechanism for a terminal block, comprising a base (101), characterized in that: A connection terminal (1) is bonded on the top of the base (101) by means of self-adhesive glue; An anti-loosening mechanism for preventing the wire from loosening is provided above the base (101) at a position corresponding to the interface of the wiring terminal (1); The anti-loosening mechanism comprises a connecting column A (1011), a U-shaped frame (102), a connecting plate (1021), a positioning screw (1022), a connecting rod (1023) and a clamping plate (1025); A connecting column A (1011) is symmetrically fixedly installed above the base (101) at a position corresponding to the interface of the connecting terminal (1), and the other end of the connecting column A (1011) is threadedly connected to a limit nut A. A U-shaped frame (102) is movably connected to the position corresponding to the interface of the connecting terminal (1) above the base (101), and one side of the U-shaped frame (102) is symmetrically provided with a connecting hole A that matches the connecting column A (1011). Connecting plates (1021) are symmetrically fixedly installed on both sides of the U-shaped frame (102). A connecting rod (1023) is slidably connected to the surface of the connecting plate (1021) through a through hole. A clamping plate (1025) is fixedly installed at one end of the connecting rod (1023). A positioning screw (1022) is rotatably connected to one side of the connecting plate (1021), and the other end of the connecting rod (1023) is embedded and threadedly connected to the outside of the positioning screw (1022).

2. A wire loosening prevention mechanism for a terminal block according to claim 1, characterized in that: The clamping plate (1025) is arranged in an arc shape.

3. A wire loosening prevention mechanism for a wiring terminal according to claim 1, characterized in that: The material of the clamping plate (1025) is PVC, and a rubber pad is bonded to the inner wall of the clamping plate (1025).

4. A wire loosening prevention mechanism for a wiring terminal according to claim 1, characterized in that: A connecting column B (1031) is symmetrically fixedly mounted on one side of the connecting plate (1021) close to the interface of the connecting terminal (1), and the other end of the connecting column B (1031) is threadedly connected to a limiting nut B.

5. A wire loosening prevention mechanism for a terminal block according to claim 1, characterized in that: The connection plate (1021) is movably connected to a protective shell (103) on one side close to the interface of the connection terminal (1), and a connection hole B that fits with a connection column B (1031) is symmetrically arranged on one side of the protective shell (103), and the protective shell (103) is arranged in a U shape, and a groove is arranged on the side of the protective shell (103) facing the clamping plate (1025).

6. A wire loosening prevention mechanism for a wiring terminal according to claim 5, characterized in that: The protective shell (103) is made of PVC.

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