A relay with a function of preventing wire disconnection

Abstract

The present invention discloses a relay with a wiring anti-loosening function, comprising a device body; a junction box arranged at one end of the device body; a plurality of placement holes are provided on the top of the junction box, and a wiring slot hole is provided on the front surface of the junction box, and a screw hole connected to the wiring slot hole is provided at the inner bottom end of the placement hole; a tightening bolt is placed in the placement hole, and the tightening bolt screws its bottom out of the screw hole and extends into the wiring slot hole by rotation, first inserts the wire structure into the wiring slot hole, and then rotates the tightening bolt to tighten the wire structure in the wiring slot hole; a connecting block is provided on the outside of the junction box; an anti-loosening mechanism is provided between the junction box and the connecting block; in view of the problems that multiple strands of copper wire are easily brought out and poor contact occurs when bolts are tightened on the wires during wiring of existing relays, the present invention designs an anti-loosening mechanism, which can perform an embedded tightening operation on the wires before the wires are tightened by the bolts.

Description

Technical Field

[0001] The invention belongs to the technical field of relays, and in particular relates to a relay with a wiring anti-loosening function. Background Art

[0002] A relay is an electrical control device and an automatic switching element. It uses a low current to control a high-current "automatic switch," playing a vital role in circuits, including automatic regulation, safety protection, and circuit switching. Its operating principle is based on the electromagnetic effect. When the input reaches a specified value, it switches the controlled output circuit on or off. Relays typically consist of an iron core, coil, armature, and contact springs. Electromagnetic force attracts the armature, causing the contacts to close or open, thereby controlling the on / off state of the circuit. Relays are widely used in power protection, automation control, communications, and other fields.

[0003] In current relay wiring operations, the wires are typically inserted into the relay connection holes and then the bolts on the relay are rotated to tighten the wires. However, this wiring method has some significant problems in practical applications.

[0004] When bolts are used to tighten the multiple strands of thin copper wire inside a wire, the inherent looseness of the wires adversely affects the tightening process. While tightening the bolts simultaneously forces the wires toward the connection hole and tightens the bolts, the rotation of the bolts during connection can cause some of the thin copper wires to spin out toward the sides of the bolt's bottom end. This phenomenon directly reduces the actual area of the wire-relay connection, affecting the relay's subsequent performance and potentially leading to unstable signal transmission, poor contact, and other issues.

[0005] Furthermore, the relatively small connection area between the wires and the bolts makes it difficult to effectively ensure connection stability. During routine maintenance, workers typically pull on the exposed wires to verify the connection between the wires and the relay. However, if the wires are subjected to external forces during maintenance, the already unstable connection can easily become loose. Consequently, this current connection method increases maintenance costs and downtime. Summary of the Invention

[0006] The object of the present invention is to provide a relay with a wiring anti-loosening function to solve the problem in the above background art that the relay wiring bolts are easily unscrewed or loosened when pressed against the wires, affecting the connection stability and use.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a relay with a wiring anti-disconnection function, comprising a body; a junction box disposed at one end of the body; a plurality of placement holes are provided on the top of the junction box, and a wiring slot is provided on the front surface of the junction box, wherein the bottom ends of the placement holes are provided with screw holes communicating with the wiring slot; a tightening bolt is placed in the placement hole, and the tightening bolt is rotated to unscrew its bottom out of the screw hole and extend into the wiring slot. During the wiring operation of the relay, the wire structure is first inserted into the wiring slot, and then the tightening bolt is rotated to tighten the wire structure in the wiring slot, thereby achieving the purpose of connection;

[0008] A connection block is provided on the outside of the junction box; an anti-slip mechanism is provided between the junction box and the connection block, and the anti-slip mechanism includes:

[0009] The upper area of the driving assembly is placed in the placement hole and is pressed down when the tightening bolt is screwed down, while the lower area of the driving assembly is placed in the wiring slot and rises and falls synchronously with the upper area; thereby converting the motion trajectory of the spiral rotation of the tightening bolt into vertical downward linear motion;

[0010] Execution component, placed inside the connection block;

[0011] Limit components, connected to both ends of the actuator;

[0012] The actuator is connected to the driving assembly; when the driving assembly descends, the actuator moves the limit assemblies at both ends toward each other synchronously, and when the driving assembly rises, the limit assemblies at both ends are moved away from each other synchronously. Therefore, when the tightening bolt is screwed down, the driving assembly will be driven to descend synchronously. At this time, the driving assembly will synchronously drive the actuator, and make the actuator move the limit assemblies at both ends toward each other, and the limit is achieved by inserting the limit assembly into the wire to avoid the wire from loosening after connection. In the subsequent disassembly, the tightening bolt is loosened first. At this time, the driving assembly returns to its original position and drives the actuator to move the limit assemblies at both ends toward each other to achieve separation from the wire, thereby ensuring the normal disassembly of the wire.

[0013] As a preferred technical solution in the present invention, the driving assembly includes an upper ring placed in the placement hole and a lower ring placed in the wiring slot hole, a connecting column is connected at an equal angle between the upper ring and the lower ring, and a spring is further provided inside the placement hole, and the spring is located inside the upper ring and the connecting column. In the early production installation, the spring is first placed in the placement hole, and then the connecting column with the upper ring fixed on the top is inserted into the placement hole until the bottom end of the connecting column passes through the wiring slot hole, and then the lower ring is installed by hot melting, or the connection can be achieved by gluing; a connecting rod is also fixed on the bottom side of the lower ring, and the connecting rod is connected to the actuator, and the axes of the upper ring, lower ring, placement hole, and tightening bolt coincide, that is, the centers of the circles around them are on the same axis; when the wire is inserted into the specified installation position, the tightening bolt is screwed down, and the tightening bolt will squeeze the upper ring. At this time, the upper ring compresses the spring while synchronously driving the lower ring to descend through the connecting column, and the connecting rod drives the actuator to move while following the lower ring to descend, thereby completing the subsequent anti-slip limit of the wire.

[0014] As a preferred technical solution in the present invention, the top of the spring abuts against the inner side of the bottom of the upper ring, and the outer wall of the spring is limited by the connecting column. The spring and the tightening bolt do not contact each other, avoiding the phenomenon of abutment caused by contact between the tightening bolt and the spring, thereby ensuring that the rebound of the spring is not affected.

[0015] As a preferred technical solution in the present invention, a square hole is provided on the end face of the connecting block facing away from the junction box, a middle hole is provided inside the square hole, and an end hole that completely passes through the connecting block is provided inside the middle hole. An inner chamber is provided on the end face of the connecting block facing the junction box, the actuator is placed in the inner chamber, a through-hole is provided between the inner chamber and the square hole, and the limiting component passes through the hole and moves to the inner area of the square hole.

[0016] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion. When the lever is lifted up, the cam will move upwards again, and the lower end of the lever will be rotated downwards again, thereby driving the corresponding limit assembly to move downwards and return to its original position. The rising and falling of the connecting rod are controlled by the tightening bolt, thereby realizing linkage, and the entire operation process complies with normal installation without adding other steps.

[0017] As a preferred technical solution in the present invention, each group of the limiting assemblies includes a lifting plate, one end of which is fixedly provided with a pin extending vertically toward the center position of the connecting block, the pin being connected to the socket and extending through the socket and inserted into the outer skin of the insulation layer of the wire, thereby limiting the wire and preventing the wire from loosening; the other end of the lifting plate is fixedly provided with an end post, which passes through the sliding groove and protrudes to the outside of the inner rod, the end post in one group of the limiting assemblies is fixed to the fixed rod, and the end post in the other group of the limiting assemblies is movable and passes through the inside of the movable groove, so that when the adjusting rod descends, the end post fixed thereto will be driven by the fixed rod and move the end post downward in the sliding groove, and the adjusting rod will press the top end of the movable oblique rod downward, so that the bottom end of the movable oblique rod will be lifted upward, and the movable oblique rod will rotate around the center of the rotation axis. At this time, the movable groove will lift the corresponding end post under the rotation. The setting of the movable groove can not only achieve the lifting of the end post, but also avoid the movement obstruction caused by the direct connection of the movable oblique rod to the end post.

[0018] As a preferred technical solution in the present invention, a mounting column is further fixedly provided on the front surface of the inner rod, and the mounting column is fixedly provided on the inner end surface of the inner chamber, thereby fixing the inner rod and ensuring that the position of the inner rod does not change.

[0019] As a preferred technical solution in the present invention, a metal sleeve is also inserted into the interior of the end hole, and one end of the metal sleeve is fixed with an integrated limiting sleeve, and the end face of the limiting sleeve is limited and fits on the inner end face of the middle hole, that is, when the end face of the limiting sleeve fits with the end face of the middle hole, the entire metal sleeve will not be pushed in again, and subsequent normal connection can be carried out. An electric wire is inserted into the limiting sleeve, and the electric wire consists of an outer insulating layer and multiple strands of fine copper wire placed inside the outer insulating layer, wherein the multiple strands of fine copper wire are inserted into the interior of the metal sleeve to wrap the multiple strands of fine copper wire. In the subsequent contact or tightening by the tightening bolt, it is ensured that the multiple strands of fine copper wire are always in the metal sleeve and will not be dispersed over a large area. At this time, even if the tightening bolt contacts part of the fine copper wire, normal connection can be guaranteed when the position limit of the wire remains unchanged. , and there will be no looseness; the outer insulating layer is inserted into the interior of the limiting sleeve to limit the insertion length of the entire wire and avoid the insertion of too long wires; the other end of the metal sleeve is provided with a through hole for screwing in a tightening bolt, and the bottom end of the tightening bolt contacts or abuts against the multiple strands of fine copper wire; the pin is inserted into the outer insulating layer of the wire, and when the tightening bolt contacts the multiple strands of fine copper wire, the pin should have been inserted into the outer insulating layer of the wire, and when the tightening bolt contacts and tightens the multiple strands of fine copper wire, if the pin is made of metal, the entire downward pressure distance will not cause the pin to completely pierce the outer insulating layer of the wire. If the pin is made of insulating and high-temperature resistant material, even if it pierces the outer insulating layer of the wire and contacts the multiple strands of fine copper wire inside, it will not cause hazards such as conductivity. Without considering the above problems, in this solution, it is preferred to set the pin with insulating and high-temperature resistant material.

[0020] As a preferred technical solution in the present invention, the inner wall of the through hole is a smooth curved surface, and the inner diameter of the through hole is greater than or equal to the bottom diameter of the clamping bolt, so as to facilitate the insertion of the clamping bolt. When the other end of the metal sleeve is in contact with the inner end face of the wiring slot, the through hole is directly below the clamping bolt, thereby ensuring that the two can be quickly aligned and facilitating the penetration of the clamping bolt.

[0021] As a preferred technical solution in the present invention, the inner wall of the end hole is symmetrically provided with limit grooves, and limit bars are symmetrically fixed on both sides of the metal sleeve. The limit bars are movably inserted into the limit grooves. Through the setting of the limit bars, it is possible to ensure that the metal sleeve is inserted horizontally, and the problem of the tightening bolt being unable to quickly penetrate the through hole due to rotation will not occur.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] In view of the problems that multiple strands of copper wire are easily pulled out and have poor contact when the bolts are tightened on the wires during the wiring of existing relays, the present invention has designed an anti-slip mechanism, which can perform an embedded tightening operation on the wires before the wires are tightened by the bolts; specifically, when the wiring work is carried out, as the relevant operations proceed, the anti-slip mechanism will be embedded in the wires to achieve tightening, so that even if multiple strands of copper wire loose inside the wires are screwed out of the two sides of the bottom end surface of the bolt, the entire wire will not be loose. At the same time, the addition of the metal sleeve can ensure that the bolt and the copper wire can achieve full contact. In the tightened state, there is no contact blind spot between the bolt and the copper wire, thereby avoiding problems such as abnormal signal transmission and unstable equipment operation caused by poor contact.

[0024] In the subsequent maintenance work, the anti-slip mechanism also showed its convenience. The operator only needs to separate the bolts and the anti-slip mechanism will open. At this time, the wires can be pulled out normally without being hindered by the anti-slip mechanism. Moreover, the operation of the entire anti-slip mechanism is completely driven by the bolts. There is no need for additional power sources or other complicated operating steps. It not only simplifies the wiring and maintenance process, but also reduces costs and maintenance difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of a relay with a wiring anti-loosening function;

[0026] Figure 2 It is a cross-sectional view of the connection between the wires, the connection block and the junction box;

[0027] Figure 3 for Figure 2 A magnified schematic diagram of area A in the middle;

[0028] Figure 4 It is a schematic diagram of the connection between the execution component and the drive component;

[0029] Figure 5 This is a schematic diagram of the inner side of the execution component;

[0030] Figure 6 A schematic diagram of the state where the execution component is assembled in the connection block;

[0031] Figure 7 This is a schematic diagram of the metal sleeve and wire during installation;

[0032] Figure 8 This is the rear view of the connection block.

[0033] In the picture:

[0034] 100, device body; 101, junction box; 101a, placement hole; 101b, wiring slot;

[0035] 200, connecting block; 200a, square hole; 200b, jack; 200c, middle hole; 200d, inner chamber; 200e, end hole; 200f, limit groove;

[0036] 201, tightening bolt; 202, metal sleeve; 202a, through hole; 202b, limiting sleeve; 202c, limiting strip;

[0037] 300, electric wire;

[0038] 401, upper ring; 402, spring; 403, connecting column; 404, lower ring; 405, connecting rod;

[0039] 500, pin; 501, lifting plate; 502, end post;

[0040] 600, actuator; 601, adjustment rod; 602, inner rod; 602a, sliding groove; 602b, mounting column; 603, fixed rod; 604, movable diagonal rod; 604a, moving groove; 605, connecting shaft; 606, rotating shaft. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] See also Figures 1 to 8 The present invention provides a technical solution: a relay with a wiring anti-loosening function, comprising

[0043] Body 100;

[0044] The junction box 101 is arranged at one end of the device body 100; a plurality of placement holes 101a are provided on the top of the junction box 101, and a wiring slot 101b is provided on the front surface of the junction box 101. The bottom end of the placement hole 101a is provided with a screw hole connected to the wiring slot 101b; a tightening bolt 201 is placed in the placement hole 101a, and the tightening bolt 201 is rotated to screw its bottom out of the screw hole and extend into the wiring slot 101b. When wiring the relay, the wire structure is first inserted into the wiring slot 101b, and then the tightening bolt 201 is rotated to tighten the wire structure in the wiring slot 101b, thereby achieving the purpose of connection;

[0045] A connection block 200 is provided outside the junction box 101; an anti-slip mechanism is provided between the junction box 101 and the connection block 200, and the anti-slip mechanism includes:

[0046] The upper portion of the drive assembly is positioned within the placement hole 101a and is pressed downward when the abutting bolt 201 is screwed downward, while the lower portion of the drive assembly is positioned within the wiring slot 101b and rises and falls synchronously with the upper portion. This converts the helical rotation of the abutting bolt 201 into a vertically downward linear motion.

[0047] The execution component 600 is placed inside the connection block 200;

[0048] Limiting components, connected to both ends of the actuator 600;

[0049] The actuator 600 is connected to the driving assembly; when the driving assembly descends, the actuator 600 will synchronously move the limit assemblies at both ends closer together, and when the driving assembly rises, the limit assemblies at both ends will synchronously move away from each other. Therefore, when the tightening bolt 201 is screwed down, it will drive the driving assembly to descend synchronously. At this time, the driving assembly will synchronously drive the actuator 600, and make the actuator 600 move the limit assemblies at both ends closer together, and insert the limit assembly into the wire 300 to achieve limitation, so as to avoid the loosening of the wire 300 after connection. In the subsequent disassembly, the tightening bolt 201 is loosened first. At this time, the driving assembly returns to its original position and drives the actuator 600 to move the limit assemblies at both ends away from each other, so as to achieve separation from the wire 300, thereby ensuring the normal disassembly of the wire 300.

[0050] In this embodiment, the driving assembly includes an upper ring 401 placed in the placement hole 101a, and a lower ring 404 placed in the wiring slot hole 101b. A connecting column 403 is connected at an equal angle between the upper ring 401 and the lower ring 404. A spring 402 is also provided inside the placement hole 101a. The spring 402 is inside the upper ring 401 and the connecting column 403. In the early production installation, the spring 402 is first placed in the placement hole 101a, and then the connecting column 403 with the upper ring 401 fixed on the top is inserted into the placement hole 101a until the bottom end of the connecting column 403 penetrates into the wiring slot hole 101b, and then the lower ring 404 is installed by hot melting, or by gluing. The connection is achieved in this way; a connecting rod 405 is also fixed to the bottom side of the lower ring 404, and the connecting rod 405 is connected to the actuator 600. The axes of the upper ring 401, the lower ring 404, the placement hole 101a, and the tightening bolt 201 coincide, that is, the centers of the circles around them are on the same axis; when the wire 300 is inserted into the specified installation position, the tightening bolt 201 is screwed down. At this time, the tightening bolt 201 will squeeze the upper ring 401. At this time, the upper ring 401 compresses the spring 402 while synchronously driving the lower ring 404 to descend through the connecting column 403, and the connecting rod 405 drives the actuator 600 to move while following the lower ring 404 to descend, thereby completing the subsequent anti-loosening limit of the wire 300.

[0051] In this embodiment, the top of the spring 402 is against the inner side of the bottom of the upper ring 401, and the outer wall of the spring 402 is limited by the connecting column 403. The spring 402 and the tightening bolt 201 do not contact each other, avoiding the phenomenon of the tightening bolt 201 and the spring 402 contacting and resisting each other, ensuring that the rebound of the spring 402 is not affected.

[0052] In this embodiment, a square hole 200a is provided on the end face of the connecting block 200 facing away from the junction box 101, and a middle hole 200c is provided inside the square hole 200a, and an end hole 200e that completely passes through the connecting block 200 is provided inside the middle hole 200c. An inner chamber 200d is provided on the end face of the connecting block 200 facing the junction box 101, and the actuator 600 is placed in the inner chamber 200d. A through-hole 200b is provided between the inner chamber 200d and the square hole 200a, and the limiting component passes through the hole 200b and moves to the inner area of the square hole 200a.

[0053] In this embodiment, the actuator 600 includes an adjusting rod 601 fixed to the end of the connecting rod 405, a fixed rod 603 is fixed to the top inner end of the adjusting rod 601, and a movable inclined rod 604 is provided at the bottom inner end of the adjusting rod 601. A connecting shaft 605 is connected between the adjusting rod 601 and the movable inclined rod 604, that is, the adjusting rod 601 and the movable inclined rod 604 are rotatably connected through the connecting shaft 605. A rotating shaft 606 is also passed through the middle of the movable inclined rod 604, and one end of the rotating shaft 606 is fixed to the inner end surface of the inner chamber 200d. An inner rod 602 is further provided on the inner side of the adjusting rod 601, and a sliding groove 602a is provided at both ends of the inner rod 602. Two groups of limit assemblies are provided, and are symmetrically arranged at both ends of the front surface of the inner rod 602. The fixed rod 603 and the movable oblique rod 604 are symmetrically arranged at the rear surface of the inner rod 602. The fixed rod 603 is fixedly connected to the limit assembly at the corresponding position; the bottom area of the movable oblique rod 604 is also provided with a moving groove 604a, and the moving groove 604a is sleeved on the corresponding limit assembly; when the connecting rod 405 is lowered, the adjusting rod 601 is rotated. The section rod 601 will fall synchronously, and the adjusting rod 601 will synchronously drive the fixed rod 603 to fall. At this time, a set of limit components fixedly connected to the fixed rod 603 will also fall synchronously. During the falling of the adjusting rod 601, since the middle part of the movable inclined rod 604 is limited by the rotating shaft 606, the adjusting rod 601 will press down the top of the movable inclined rod 604. At this time, the bottom end of the movable inclined rod 604 will be tilted and lifted. At this time, the other set of limit components corresponding to it will be lifted by the movable inclined rod 604, so as to realize the two sets of limit components moving closer to each other. On the contrary, when the connection When rod 405 rises, fixed rod 603 rises along with adjusting rod 601, and a set of limit components fixed thereto rise synchronously, and the movable inclined rod 604, which is rotatably connected to the bottom of movable inclined rod 604, the top end that was originally pressed down will be pulled up again, and the bottom end that was originally rotated and lifted upward will rotate downward again, thereby driving the corresponding limit component to descend and return to its original position, and the rise and fall of connecting rod 405 are controlled by tightening bolt 201, thereby realizing linkage, and the entire operation process complies with normal installation and does not add other steps.

[0054] In this embodiment, each set of limiting components includes a lifting plate 501, one end of the lifting plate 501 is fixed with a pin 500 extending vertically toward the center of the connecting block 200, the pin 500 is connected with the socket 200b, and extends through the socket 200b and is inserted into the outer skin of the insulating layer of the wire 300, thereby limiting the wire 300 and preventing the wire 300 from loosening; the other end of the lifting plate 501 is fixed with an end post 502, the end post 502 passes through the sliding groove 602a and protrudes to the outside of the inner rod 602, one set of the end posts 502 in the limiting components is fixed to the fixed rod 603, and the other set of the end posts 502 in the limiting components are movable The movable rod 604 moves through the interior of the movable groove 604a, so when the adjusting rod 601 descends, it will drive the end column 502 fixed with it through the fixed rod 603, and move the end column 502 downward in the sliding groove 602a, and the adjusting rod 601 presses down the top of the movable inclined rod 604, so that the bottom end of the movable inclined rod 604 is lifted upward. At this time, the movable inclined rod 604 rotates around the center of the rotating shaft 606. At this time, the movable groove 604a will lift the corresponding end column 502 under rotation. The setting of the movable groove 604a can not only realize the lifting of the end column 502, but also avoid the movement obstacle caused by the direct connection between the movable inclined rod 604 and the end column 502.

[0055] In this embodiment, a mounting post 602b is further fixed on the front surface of the inner rod 602. The mounting post 602b is fixed on the inner end surface of the inner chamber 200d, thereby fixing the inner rod 602 and ensuring that the position of the inner rod 602 does not change.

[0056] In this embodiment, a metal sleeve 202 is further inserted into the end hole 200e, and an integrated limiting sleeve 202b is fixed to one end of the metal sleeve 202. The end face of the limiting sleeve 202b is limited and fits on the inner end face of the middle hole 200c, that is, when the end face of the limiting sleeve 202b fits on the end face of the middle hole 200c, the entire metal sleeve 202 will not be pushed in again, and the subsequent normal connection can be carried out at this time. The wire 300 is inserted into the limiting sleeve 202b. 300 is composed of an outer insulating layer and multiple strands of fine copper wire placed inside the outer insulating layer, wherein the multiple strands of fine copper wire are inserted into the interior of the metal sleeve 202 to wrap the multiple strands of fine copper wire. In the subsequent contact or tightening by the tightening bolt 201, it is ensured that the multiple strands of fine copper wire are always in the metal sleeve 202 and will not be dispersed over a large area. At this time, even if the tightening bolt 201 contacts some of the fine copper wires, under the condition that the position limit of the wire 300 remains unchanged, it can also ensure normal connection and will not become loose. The outer insulating layer is inserted into the inner part of the limiting sleeve 202b to limit the insertion length of the entire wire 300 and prevent the insertion of an excessively long wire 300. The other end of the metal sleeve 202 is provided with a through hole 202a for screwing in the tightening bolt 201. The bottom end of the tightening bolt 201 contacts or abuts against the multiple strands of thin copper wire. The pin 500 is inserted into the outer insulating layer of the wire 300. When the tightening bolt 201 contacts the multiple strands of thin copper wire, the pin 500 should have been inserted into the wire 300. Inside the outer insulating layer, when the tightening bolt 201 is in contact with and then tightened against the multiple strands of thin copper wires, if the pin 500 is made of metal, the entire downward pressure distance will not cause the pin 500 to completely pierce the outer insulating layer of the wire 300. If the pin 500 is made of insulating and high-temperature resistant material, even if it pierces the outer insulating layer of the wire 300 and contacts the multiple strands of thin copper wires inside, it will not cause hazards such as conductivity. Without considering the above problem, in this solution, it is preferred that the pin 500 be made of insulating and high-temperature resistant material.

[0057] In this embodiment, the inner wall of the through hole 202a is a smooth curved surface, and the inner diameter of the through hole 202a is greater than or equal to the bottom diameter of the tightening bolt 201, thereby facilitating the insertion of the tightening bolt 201. When the other end of the metal sleeve 202 is in contact with the inner end surface of the wiring slot 101b, the through hole 202a is directly below the tightening bolt 201, thereby ensuring that the two can be quickly aligned and facilitating the penetration of the tightening bolt 201.

[0058] In this embodiment, the inner wall of the end hole 200e is symmetrically provided with a limiting groove 200f, and the metal sleeve 202 is symmetrically fixed with a limiting bar 202c on both sides. The limiting bar 202c is movably inserted into the limiting groove 200f. Through the setting of the limiting bar 202c, it can be ensured that the metal sleeve 202 is inserted in a horizontal manner, and the problem of the tightening bolt 201 being unable to quickly engage its through hole 202a due to rotation will not occur.

[0059] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A relay with a wiring anti-loosening function, comprising body; A junction box is provided at one end of the device body; a plurality of placement holes are provided on the top of the junction box, and a wiring slot is provided on the front surface of the junction box; a screw hole is provided at the bottom end of each placement hole and is connected to the wiring slot; a tightening bolt is placed in each placement hole, and the tightening bolt is rotated to screw its bottom out of the screw hole and extend into the wiring slot; Its characteristics are: A connection block is provided on the outside of the junction box; an anti-slip mechanism is provided between the junction box and the connection block, and the anti-slip mechanism includes: The upper area of the driving assembly is placed in the placement hole and is pressed down when the tightening bolt is screwed down, while the lower area of the driving assembly is placed in the wiring slot and rises and falls synchronously with the upper area; Execution component, placed inside the connection block; Limit components, connected to both ends of the actuator; The actuator is connected to the driving assembly; when the driving assembly descends, the actuator moves the limit assemblies at both ends closer together, and when the driving assembly ascends, the limit assemblies at both ends move away from each other; The driving assembly includes an upper ring placed in the placement hole and a lower ring placed in the wiring slot hole. A connecting column is connected at an equal angle between the upper ring and the lower ring. A spring is also provided inside the placement hole, and the spring is located inside the upper ring and the connecting column. A connecting rod is also fixed to the bottom side of the lower ring, and the connecting rod is connected to the actuator. The axes of the upper ring, lower ring, placement hole, and tightening bolt coincide. The top of the spring abuts against the inner side of the bottom of the upper ring, while the outer wall of the spring is limited by the connecting column, and the spring and the tightening bolt do not contact each other; The end surface of the connecting block facing away from the junction box is provided with a square hole, a middle hole is provided inside the square hole, and an end hole that completely passes through the connecting block is provided inside the middle hole. The end surface of the connecting block facing the junction box is provided with an inner chamber, the actuator is placed in the inner chamber, a through-hole is provided between the inner chamber and the square hole, and the limit assembly passes through the hole and moves to the inner area of the square hole; The actuator assembly includes an adjusting rod fixedly mounted on the end portion of the connecting rod, a fixed rod is fixedly provided on the top inner side of the adjusting rod, and a movable oblique rod is provided on the bottom inner side of the adjusting rod, a connecting shaft is connected between the adjusting rod and the movable oblique rod, and the middle of the movable oblique rod also passes through a rotating shaft, one end of the rotating shaft is fixedly mounted on the inner end surface of the inner chamber, an inner rod is also provided on the inner side of the adjusting rod, and sliding grooves are provided at both ends of the inner rod, the limit assembly is provided with two groups, and are symmetrically arranged at the two ends of the front surface of the inner rod, the fixed rod and the movable oblique rod are symmetrically arranged at the rear surface of the inner rod, and the fixed rod is fixedly connected to the limit assembly at the corresponding position; the bottom area of the movable oblique rod is also provided with a movable groove, which is sleeved on the limit assembly corresponding to it.

2. The relay with a wiring anti-loosening function according to claim 1, characterized in that: Each group of the limiting components includes a lifting plate, one end of which is fixedly provided with a pin extending vertically toward the center position of the connecting block, and the pin is connected to the socket; the other end of the lifting plate is fixedly provided with an end column, which passes through the sliding groove and protrudes to the outside of the inner rod, wherein the end column in one group of the limiting components is fixed to the fixed rod, and the end column in the other group of the limiting components is movable and passes through the inside of the movable groove.

3. The relay with a wiring anti-loosening function according to claim 1, characterized in that: A mounting post is also fixedly provided on the front surface of the inner rod, and the mounting post is fixedly provided on the inner end surface of the inner chamber.

4. The relay with a wiring anti-loosening function according to claim 2, characterized in that: A metal sleeve is also inserted into the end hole, and an integrated limiting sleeve is fixed to one end of the metal sleeve. The end face of the limiting sleeve is limited and fits on the inner end face of the middle hole. An electric wire is inserted into the limiting sleeve, and the electric wire consists of an outer insulating layer and multiple strands of fine copper wire placed inside the outer insulating layer, wherein the multiple strands of fine copper wire pass through the interior of the metal sleeve; and the outer insulating layer is inserted into the interior of the limiting sleeve; the other end of the metal sleeve is provided with a through hole for screwing in a tightening bolt, and the bottom end of the tightening bolt contacts or abuts against the multiple strands of fine copper wire; the pin is inserted into the outer insulating layer of the electric wire.

5. The relay with a wiring anti-loosening function according to claim 4, characterized in that: The inner wall of the through hole is a smooth curved surface, and the inner diameter of the through hole is greater than or equal to the bottom diameter of the tightening bolt. When the other end of the metal sleeve is in contact with the inner end surface of the wiring slot, the through hole is directly below the tightening bolt.

6. The relay with a wiring anti-loosening function according to claim 4, characterized in that: The inner wall of the end hole is symmetrically provided with limiting grooves, and limiting bars are symmetrically fixed on both sides of the metal sleeve, and the limiting bars are movably inserted into the limiting grooves.

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