Binding post tensile detection device of drop-out fuse

Abstract

The utility model provides a tensile detection device for a wiring terminal of a drop-out fuse, and relates to the technical field of tensile detection equipment. The flat plate is detachably mounted on the tension detector through bolts, and a first clamping part and a second clamping part are arranged on the flat plate; the driving assembly is arranged on the flat plate and can drive the first clamping part to wrap the connecting position of the wire and the wiring terminal and drive the second clamping part to clamp the wire at the same time, so that the wiring terminal and the wire are synchronously positioned. When the first clamping part is driven to position the wiring terminal part, the second clamping part is driven to synchronously fix the wire part, so that the wiring terminal and the wire can be positioned in one step, the operation steps and the consumed time required for clamping the wiring terminal and the wire by personnel are reduced, the batch detection requirement is met, and the production and detection efficiency is improved.

Description

Technical Field

[0001] This utility model application relates to the technical field of tensile testing equipment, and in particular to a tensile testing device for the terminals of a drop-out fuse. Background Technology

[0002] Drop-out fuses are commonly used protective devices in outdoor high-voltage power distribution lines. They are mainly used for overload and short-circuit protection of overhead lines and distribution transformers. Terminal blocks are metal parts installed at both ends of drop-out fuses to achieve electrical connection and mechanical fixation between the fuse and the external power line. They are often used in conjunction with conductors or cables. Before use, tensile testing equipment is needed to test the tensile strength and connection reliability of the connection between the terminal block and the conductor. This is a key quality inspection device to ensure the safe operation of power lines.

[0003] When using the existing terminal tensile strength tester, the terminal is fixed by manually operating a clamp, and then another clamp is manually operated to fix the wire. The clamp holding the wire is then driven to move away from the terminal and drag the wire. The tensile strength value is calculated with the help of a pressure sensor, and it is observed whether the terminal and the wire will separate within the qualified pressure range.

[0004] However, when manually clamping, personnel need to first fix the terminals and then the wires. During continuous testing, the terminals need to be clamped, locked, and reset repeatedly. The process is cumbersome and time-consuming, which makes it difficult to meet the batch quality inspection needs of power distribution equipment manufacturers and affects production and testing efficiency. Utility Model Content

[0005] The technical problem this utility model application aims to solve is that when personnel manually clamp the terminals, they need to fix the wires first, and then fix the wires. During continuous testing, the terminals need to be clamped, locked, and reset repeatedly. The process is cumbersome and time-consuming, which makes it difficult to meet the batch quality inspection needs of power distribution equipment manufacturers and affects production and testing efficiency.

[0006] The technical solution adopted by this utility model application to solve its technical problem is: a tensile strength testing device for the terminal of a drop-out fuse, comprising: a tensile strength tester; a plate, the plate being detachably mounted on the tensile strength tester by bolts, the plate being provided with a first clamping part and a second clamping part; and a driving assembly, the driving assembly being disposed on the plate, which can drive the first clamping part to wrap around the connection between the wire and the terminal, and simultaneously drive the second clamping part to clamp the wire, so that the terminal and the wire are positioned synchronously.

[0007] Preferably, the first clamping part includes: an arc-shaped seat fixedly connected to a flat plate, the arc-shaped seat having two symmetrically formed grooves; a first arc-shaped plate slidably mounted on the inner side of the arc-shaped seat, wherein the first arc-shaped plate is a hollow structure; a second arc-shaped plate slidably mounted on the inner side of the arc-shaped seat, wherein the first arc-shaped plate and the second arc-shaped plate are symmetrically arranged, wherein the size and shape of the surface of the second arc-shaped plate are adapted to the size and shape of the inner wall of the first arc-shaped plate; two first spring rods fixedly connected to the first arc-shaped plate and the second arc-shaped plate respectively, wherein one end of the spring in the two first spring rods is fixedly connected to the first arc-shaped plate and the second arc-shaped plate respectively; and two perforated plates slidably mounted on the two first spring rods respectively, wherein the other end of the spring in the two first spring rods is fixedly connected to the two perforated plates respectively.

[0008] Preferably, a grooved component is fixed to one side of the arc seat, and the cross-section of the grooved component is concave.

[0009] Preferably, a rectangular groove is provided on the inner side of the arc seat, and rectangular blocks are fixedly connected to both the first arc plate and the second arc plate, with both rectangular blocks sliding inside the rectangular groove.

[0010] Preferably, the second clamping part includes: a concave seat, which is disposed on a flat plate; two plates, which are symmetrically slidably mounted on the concave seat by means of second spring rods, wherein the other end of the springs in the two second spring rods is fixedly connected to the concave seat, and multiple reverse teeth are fixedly connected to the adjacent side of the two plates.

[0011] Preferably, the driving assembly includes: a slide rail, which is formed on a flat plate, and a carriage is slidably connected to the inner wall of the slide rail; an electric telescopic rod, which is fixedly connected to the flat plate, wherein the movable end of the electric telescopic rod is fixedly connected to a concave seat for driving the concave seat to move; a bidirectional screw, which is rotatably mounted on the concave seat via bearings, wherein both ends of the bidirectional screw are placed on the carriage, wherein the surface thread shape of the bidirectional screw is arranged in opposite symmetrical patterns, and the bidirectional screw is driven to rotate by a motor fixedly connected to the carriage; and two threaded rods, which are symmetrically threadedly connected to the bidirectional screw, wherein the two threaded rods are respectively placed inside the holes of two perforated plates, wherein the inner dimension of the groove is larger than that of the threaded rod, and wherein the threaded rods correspond to the position of the second spring rod.

[0012] Preferably, one of the plates is provided with a pressure sensor for controlling and detecting the pressure value generated when the wire is clamped.

[0013] As described above: By setting up a driving component, the second clamping part can be driven to fix the wire part simultaneously while the first clamping part is positioned, so that the terminal and the wire can be positioned in one step, reducing the operation steps and time required for personnel to clamp the terminal and the wire, adapting to batch testing needs, and improving production and testing efficiency. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a three-dimensional structural diagram of the present utility model application;

[0016] Figure 2 This is a three-dimensional structural diagram of the concave seat of this utility model application;

[0017] Figure 3 This is a three-dimensional structural diagram of the plate component for this utility model application;

[0018] Figure 4 This is a three-dimensional structural diagram of the first arc plate of this utility model application;

[0019] Figure 5 This is a three-dimensional structural diagram of the arc-shaped base for this utility model application.

[0020] Legend: 100, Flat plate; 200, Drive assembly; 201, Slide rail; 202, Electric telescopic rod; 203, Carriage; 204, Bidirectional screw; 205, Motor; 206, Screw hole rod; 300, First clamping part; 301, Arc seat; 302, Slotted part; 303, Rectangular slot; 304, Groove; 305, First arc plate; 306, Second arc plate; 307, First spring rod; 308, Hole plate; 309, Rectangular block; 400, Second clamping part; 401, Concave seat; 402, Second spring rod; 403, Plate. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0022] In the description of this utility model application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model application based on the specific circumstances.

[0023] Figure 1 A tensile strength testing device for the terminals of a drop-out fuse is shown, comprising: a tensile testing instrument, a plate 100, and a drive assembly 200; the plate 100 is detachably mounted on the tensile testing instrument by bolts, and the plate 100 is provided with a first clamping part 300 and a second clamping part 400; the drive assembly 200 is disposed on the plate 100, and can drive the first clamping part 300 to wrap around the connection between the wire and the terminal, and simultaneously drive the second clamping part 400 to clamp the wire, so that the terminal and the wire are positioned synchronously. By setting the drive assembly 200, the first clamping part 300 and the second clamping part 400 can be driven to clamp the wire. The two clamping parts 400 automatically and synchronously fix the terminals and wires, reducing the number of steps required to fix the terminals and wires, avoiding cumbersome and time-consuming processes during batch testing, and improving production and testing efficiency. In use, the terminals and wires are placed on the first clamping part 300 and the second clamping part 400 respectively. Then, the drive assembly 200 drives the first clamping part 300 and the second clamping part 400 to move and synchronously position the terminals and wires. At the same time, the drive assembly 200 drives the second clamping part 400 to move to stretch the wires and test the tensile strength.

[0024] Figure 4 and Figure 5The first clamping part 300 shown includes: an arc-shaped base 301, a first arc-shaped plate 305, a second arc-shaped plate 306, two first spring rods 307, and two perforated plates 308; the arc-shaped base 301 is fixedly connected to the flat plate 100, and two grooves 304 are symmetrically formed on the arc-shaped base 301; the first arc-shaped plate 305 is slidably installed inside the arc-shaped base 301, wherein the first arc-shaped plate 305 is a hollow structure; the second arc-shaped plate 306 is slidably installed inside the arc-shaped base 301, wherein the first arc-shaped plate 305 and the second arc-shaped plate 306 are connected. For symmetrical arrangement, the size and shape of the surface of the second arc plate 306 are adapted to the size and shape of the inner wall of the first arc plate 305; two first spring rods 307 are respectively fixed to the first arc plate 305 and the second arc plate 306, wherein one end of the spring in each of the two first spring rods 307 is fixed to the first arc plate 305 and the second arc plate 306 respectively; two perforated plates 308 are respectively slidably mounted on the two first spring rods 307, wherein the other end of the spring in each of the two first spring rods 307 is fixed to the two perforated plates 305 and 306 respectively. 8. Fixed Connection: By setting the first clamping part 300, the first arc plate 305 and the second arc plate 306 can be used to close and wrap the wire near the terminal and intercept and limit the terminal part. It can freely adapt to wires and terminals of various sizes for flexible positioning. In use, the terminal is first placed on the arc base 301 so that the edge of the terminal corresponds to the connection between the terminal and the wire. Then, the driving component 200 drives the two spring rods to move closer to each other, so that the two first spring rods 307 push the first arc plate 305 and the second arc plate 306 to slide closer to each other inside the arc base 301. When the first arc plate 305 and the second arc plate 306 are both moved to the position of being in contact with the surface of the wire, the second arc plate 306 partially inserts into the inside of the first arc plate 305 and cooperates to wrap the wire, so that the edge of the terminal is in contact with the surface of the first arc plate 305 and the second arc plate 306, preventing the terminal from shifting during the stretching process, thereby completing the positioning of the terminal.

[0025] Figure 2 , Figure 4 and Figure 5A groove-shaped component 302 is fixedly connected to one side of the arc-shaped base 301 shown. The cross-section of the groove-shaped component 302 is concave. By setting the groove-shaped component 302, the disconnected wire terminals can be collected, which facilitates the subsequent handling of the terminals. A rectangular groove 303 is opened on the inner side of the arc-shaped base 301. A rectangular block 309 is fixedly connected to both the first arc plate 305 and the second arc plate 306. Both rectangular blocks 309 slide inside the rectangular groove 303. By setting the rectangular groove 303 and the rectangular blocks 309, the rectangular blocks 309 can slide inside the rectangular groove 303 and limit the first arc plate 305 and the second arc plate 306, reducing the shaking of the first arc plate 305 and the second arc plate 306 during use and improving the stability of the first arc plate 305 and the second arc plate 306.

[0026] Figure 3 The second clamping part 400 shown includes: a concave seat 401 and two plates 403; the concave seat 401 is disposed on the plate 100; the two plates 403 are symmetrically slidably mounted on the concave seat 401 by means of second spring rods 402, wherein the other end of the springs in the two second spring rods 402 are fixedly connected to the concave seat 401, and multiple reverse teeth are fixedly connected to the adjacent side of the two plates 403. By providing the second clamping part 400, the two plates 403 can be moved in opposite directions by the drive assembly 200 to clamp the wire portion. The wire and terminal are held in place. Then, the drive assembly 200 drives the second clamping part 400 to move away from the first clamping part 300 to perform a tensile test. In use, the wire part is first placed on the concave seat 401. Then, the drive assembly 200 drives the two second spring rods 402 to move in opposite directions inside the hole of the concave seat 401, so that the two second springs drive the two plates 403 to move in opposite directions. When the two plates 403 move in opposite directions to the position of adhering to and pressing the surface of the wire, the clamping and fixing of the wire is completed.

[0027] Figure 2 , Figure 3 and Figure 4The drive assembly 200 shown includes: a slide rail 201, an electric telescopic rod 202, a bidirectional screw 204, and two screw-hole rods 206. The slide rail 201 is formed on the plate 100, and a carriage 203 is slidably connected to the inner wall of the slide rail 201. The electric telescopic rod 202 is fixedly connected to the plate 100, wherein the movable end of the electric telescopic rod 202 is fixedly connected to the concave seat 401 for driving the concave seat 401 to move. The bidirectional screw 204 is rotatably mounted on the concave seat 401 through bearings, wherein both ends of the bidirectional screw 204 are placed on the carriage 203, and the surface thread shape of the bidirectional screw 204 is arranged in opposite symmetrical patterns. In this configuration, the bidirectional screw 204 is driven to rotate by a motor 205 fixed to the slide 203. Two threaded rods 206 are symmetrically threaded onto the bidirectional screw 204, with the two threaded rods 206 respectively positioned inside the holes of the two perforated plates 308. The inner dimension of the groove 304 is larger than that of the threaded rod 206. The threaded rods 206 correspond to the positions of the second spring rod 402. By setting the drive assembly 200, the first clamping part 300 can be driven to position the terminal part while the second clamping part 400 simultaneously fixes the wire part, enabling the terminal and wire to be positioned in one step, reducing manual intervention. The procedure and time required for clamping terminals and wires are designed to meet batch testing needs and improve production and testing efficiency. In use, the terminals and wires are first placed on the arc-shaped seat 301 and the concave seat 401 respectively. Then, the motor 205 is started to drive the bidirectional screw 204 to rotate. During rotation, the bidirectional screw 204 drives two screw hole rods 206 to move in opposite directions. These two screw hole rods 206 push two perforated plates 308 to move in opposite directions, which in turn push two first spring rods 307 to move in opposite directions. The two first spring rods 307 then push the first… The arc plate 305 and the second arc plate 306 move in opposite directions to block the terminal block. At the same time, when the two screw rods 206 move in opposite directions to the position of abutting the surface of the second spring rod 402, the two screw rods 206 push the two second spring rods 402 to move in opposite directions, which in turn push the two plates 403 to move in opposite directions. The two plates 403 are used to fix the wire part, thereby completing the synchronous fixation of the wire and the terminal block. Then, the electric telescopic rod 202 drives the concave seat 401 to move away from the arc seat 301 to stretch and test the wire and the terminal block.

[0028] Figure 2 , Figure 3 and Figure 4 One of the plates 403 shown is equipped with a pressure sensor, which is used to control and detect the pressure value generated when clamping the wire. By setting the pressure sensor, the clamping force of the plate 403 on the wire can be detected and controlled, reducing the possibility of damage to the wire's protective layer or internal core when the plate 403 clamps the wire rigidly, thus affecting the normal stretching and testing of the wire.

[0029] Working Principle: First, the plate 100 is fixed to the tensile testing instrument using bolts or other installation methods. Then, the terminals and wires are placed on the arc seat 301 and the concave seat 401 respectively. The motor 205 is then started to drive the bidirectional screw 204 to rotate. During rotation, the bidirectional screw 204 drives the two screw hole rods 206 to move in opposite directions. These two screw hole rods 206 push the two perforated plates 308 to move in opposite directions, which in turn push the two first spring rods 307 to move in opposite directions. The two first spring rods 307 then push the first arc plate 305 and the second arc plate 306 to slide closer together inside the arc seat 301. When both the first arc plate 305 and the second arc plate 306 are in contact with the wire surface, the second arc plate 306 partially inserts into the first arc plate 305 and... The components work together to wrap the wire, ensuring that the edge of the terminal block is in contact with the surfaces of the first arc plate 305 and the second arc plate 306. This prevents the terminal block from shifting during the stretching process, thus positioning the terminal block. Simultaneously, when the two screw rods 206 move towards each other and are in contact with the surfaces of the two second spring rods 402, the two screw rods 206 push the two second spring rods 402 towards each other, causing the two second spring rods 402 to push the two plates 403 towards each other. The two plates 403 are used to fix the wire portion. At the same time, a pressure sensor detects and controls the clamping force of the plates 403 on the wire, thus achieving synchronous fixation of the wire and the terminal block. Then, the electric telescopic rod 202 drives the concave seat 401 to move away from the arc seat 301 to perform stretching and tensile force testing on the wire and the terminal block.

[0030] Based on the above-described preferred embodiments according to this utility model application, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A pull test device for a terminal of a drop-out fuse, characterized by: The utility model relates to a tension detector, a flat plate (100) is detachably installed on the tension detector through bolts, a first clamping part (300) and a second clamping part (400) are arranged on the flat plate (100), a driving assembly (200) is arranged on the flat plate (100), the driving assembly (200) can drive the first clamping part (300) to wrap the connecting part of the wire and the terminal, and simultaneously drive the second clamping part (400) to clamp the wire, so that the terminal and the wire are positioned synchronously. The first clamping part (300) comprises: An arc seat (301) is fixedly connected with the flat plate (100), two grooves (304) are symmetrically formed in the arc seat (301), A first arc plate (305) is slidably installed on the inner side of the arc seat (301), wherein the first arc plate (305) is a hollow structure, 2. The pull test device for a line terminal of a drop-out fuse according to claim 1, characterized in that: A second arc plate (306) is slidably installed on the inner side of the arc seat (301), wherein the first arc plate (305) and the second arc plate (306) are symmetrically arranged, and the surface size and shape of the second arc plate (306) are matched with the inner wall size and shape of the first arc plate (305), Two first spring rods (307) are fixedly connected with the first arc plate (305) and the second arc plate (306) respectively, wherein one end of the spring in each of the two first spring rods (307) is fixedly connected with the first arc plate (305) and the second arc plate (306) respectively, Two hole plates (308) are slidably installed on the two first spring rods (307) respectively, wherein the other end of the spring in each of the two first spring rods (307) is fixedly connected with the two hole plates (308) respectively. One side of the arc seat (301) is fixedly connected with a groove-shaped part (302), and the cross section of the groove-shaped part (302) is concave. A rectangular groove (303) is formed in the inner side of the arc seat (301), rectangular blocks (309) are fixedly connected with the first arc plate (305) and the second arc plate (306) respectively, and the two rectangular blocks (309) are slidably arranged in the rectangular groove (303). The second clamping part (400) comprises:

3. The pull test device for a line terminal of a drop-out fuse according to claim 2, characterized in that: A concave seat (401) is arranged on the flat plate (100), 4. The pull test device for a line terminal of a drop-out fuse according to claim 2, characterized by: Two plate parts (403) are symmetrically slidably installed on the concave seat (401) through second spring rods (402) respectively, wherein the other end of the spring in each of the two second spring rods (402) is fixedly connected with the concave seat (401), and a plurality of reverse teeth are fixedly connected with the proximal side of each of the two plate parts (403).

5. The pull test device for a line terminal of a drop-out fuse according to claim 1, characterized by: The driving assembly (200) comprises: A slide (201) is formed in the flat plate (100), and a sliding rail (203) is slidably connected with the inner wall of the slide (201). ​ 6. A pull test device for a line terminal of a drop-out fuse according to claim 5, characterized in that: ​ ​ Electric telescopic rod (202), which is fixed with the flat plate (100), wherein the movable end of the electric telescopic rod (202) is fixed with the concave seat (401) to drive the concave seat (401) to move; Bidirectional screw rod (204), which is rotatably installed on the concave seat (401) through a bearing, wherein both ends of the bidirectional screw rod (204) are placed on the slide (203), wherein the surface thread shape of the bidirectional screw rod (204) is oppositely symmetrical, and the bidirectional screw rod (204) is driven to rotate by the motor (205) fixed with the slide (203); Two screw hole rods (206), which are symmetrically screwed on the bidirectional screw rod (204), wherein the two screw hole rods (206) are respectively placed in the holes of the two hole plates (308), wherein the inner side of the groove (304) is larger than the screw hole rod (206), and wherein the screw hole rod (206) corresponds to the position of the second spring rod (402).

7. A pull test device for a line terminal of a drop-out fuse according to claim 6, characterized in that: One of the plate members (403) is provided with a pressure sensor, which is used to control and detect the pressure value generated when the wire is clamped.

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