Generator circuit overvoltage self-locking protection device

Abstract

The utility model relates to the technical field of overvoltage protectors, in particular to a generator circuit overvoltage self-locking protection device, which comprises a protector body, a first clamping block, a fixing structure and a pop-up structure, and is characterized in that one side of the protector body is fixedly connected with a wire holder; one side of the wire holder is symmetrically in threaded connection with multiple groups of first threaded nails, two ends of the wire holder are fixedly connected with first clamping blocks for fixing wires, two ends of each first clamping block are rotatably connected with second threaded nails, and one end, away from the first clamping block, of each second threaded nail is in threaded connection with a second clamping block. The generator circuit overvoltage self-locking protection device comprises a protector body, a wire holder is installed on the protector body, a fixing structure is installed on the side, away from the protector body, of the wire holder, the fixing structure comprises a fixing base, a fixing base is installed on the side, away from the protector body, of the wire holder, and a pop-up structure is installed in the fixing base. The device has the advantages of enhancing the wire fixing reliability, improving the device fixing flexibility and simplifying the maintenance process.

Description

Technical Field

[0001] This utility model relates to the field of overvoltage protector technology, and in particular to an overvoltage self-locking protection device for generator circuits. Background Technology

[0002] The generator circuit overvoltage self-locking protection device is a safety device used to automatically cut off the circuit when an overvoltage occurs in the generator circuit to protect the circuit and equipment. It monitors the voltage level in the circuit and can quickly respond and lock the circuit when the voltage exceeds a preset safety threshold to prevent equipment damage or safety accidents caused by overvoltage.

[0003] However, existing generator circuit overvoltage self-locking protection devices have shortcomings in their fixing methods. Typically, these protection devices are hung on a wall-mounted plate using a mounting plate and then secured by clips at the bottom. While this method is simple and direct, the fixation is not secure enough, and the device is prone to loosening or even falling off due to external factors, thus affecting its protective function. In addition, this connection method often lacks flexibility and is usually only suitable for one type of mounting plate. Furthermore, existing generator circuit overvoltage self-locking protection devices also present inconveniences in terms of installation layout. These devices are often installed side by side with other electrical protection equipment such as circuit breakers, making the layout around the circuit overvoltage self-locking protection device compact and complex. When maintenance is required, the limited space and dense equipment make it difficult for operators to operate, increasing the difficulty and time cost of maintenance.

[0004] Therefore, it is necessary to provide a new generator circuit overvoltage self-locking protection device to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a generator circuit overvoltage self-locking protection device.

[0006] The generator circuit overvoltage self-locking protection device provided by this utility model includes: a protector body, a first clamping block, a fixing structure, and a pop-out structure. A terminal block is fixedly connected to one side of the protector body. Multiple sets of first threaded pins are symmetrically threaded to one side of the terminal block. First clamping blocks for fixing wires are fixedly connected to both ends of the terminal block. Second threaded pins are rotatably connected to both ends of the first clamping blocks. A second clamping block is threaded to the end of the second threaded pin away from the first clamping block. A fixing structure for fixing the protector is installed on the side of the terminal block away from the protector body. The fixing structure includes a fixing seat. A fixing seat is installed on the side of the terminal block away from the protector body. A pop-out structure for extending the protector is installed inside the fixing seat.

[0007] Preferably, the fixing structure further includes: a hanging plate, a third clamping plate, a threaded rod, and a knob. The hanging plate is fixedly connected to the side of the fixing seat away from the terminal block. The third clamping plate is slidably connected to one side of the fixing seat below the hanging plate. The bottom of the fixing seat is threadedly connected to the threaded rod. The top of the threaded rod is rotatably connected to the bottom of the third clamping plate. The bottom of the threaded rod is fixedly connected to the knob.

[0008] Preferably, the pop-up structure includes: a vertical column, a horizontal column, a first spring, a locking pin, a second spring, a slide groove, an insert pin, a ball bearing, and a button. The vertical column is slidably connected inside the fixed base, and the horizontal columns are symmetrically fixedly connected to both sides of the vertical column. The bottom of each horizontal column is fixedly connected to a first spring, and one end of each first spring is fixedly connected to the fixed base. The side of the terminal block near the fixed base is symmetrically fixedly connected to a locking pin, and the inner wall of the locking pin is fixedly connected to a second spring. One end of the second spring is fixedly connected to the fixed base. A slide groove is provided at the bottom of the vertical column, and an insert pin is slidably connected to the bottom of the terminal block. One end of the insert pin is rotatably connected to a roller, and the roller is in rolling contact with the slide groove at the bottom of the vertical column. The other end of the insert pin is fixedly connected to a button.

[0009] Preferably, the side of the hanging plate and the third clamping plate that are close to each other are provided with arc-shaped grooves.

[0010] Preferably, the bottom of the card post is designed with a slope, and the side of the horizontal post near the terminal block is designed with a slope.

[0011] Preferably, the chute is designed with an inclined surface, and the longitudinal length of the chute is greater than the longitudinal length of the locking post.

[0012] Preferably, the end of the first threaded pin inserted into the terminal block has a rounded corner design, and the side of the terminal block is marked with live wire L and neutral wire N.

[0013] Preferably, the portion of the sidewall of the second threaded pin located inside the first clamping block is not threaded, while the portion of the sidewall of the second threaded pin located inside the second clamping block is threaded.

[0014] Compared with related technologies, the generator circuit overvoltage self-locking protection device provided by this utility model has the following beneficial effects:

[0015] Enhance the reliability of wire fixing:

[0016] By designing a first clamping block and a second clamping block, along with a first threaded pin and a second threaded pin that cooperate with them, this utility model provides a double clamping mechanism that can firmly fix the wire and effectively prevent the risk of the wire loosening or falling off. This design not only improves the stability of the wire connection, but also ensures the normal operation and safety of the circuit.

[0017] Improve the flexibility of device fixation:

[0018] The fixing structure of this utility model includes components such as a hanging plate, a third clamping plate, a threaded rod, and a knob, which can adapt to fixing plates of different sizes, improving the applicability and flexibility of the device. At the same time, the arc-shaped groove design on the hanging plate and the third clamping plate helps to better clamp the fixing plate and prevent the device from loosening or falling off under the action of external factors such as vibration or wind.

[0019] Simplify the maintenance process:

[0020] This invention features a convenient pop-out mechanism. By pressing a button, the protector body and the terminal block can be popped out, facilitating maintenance. This design not only simplifies the maintenance process but also improves the safety and convenience of operation, reducing the difficulty and time cost of maintenance. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overvoltage self-locking protection device for generator circuits provided by this utility model;

[0022] Figure 2 for Figure 1 The diagram shows the back structure of the generator circuit overvoltage self-locking protection device;

[0023] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure of the top of the mounting base shown;

[0024] Figure 4 for Figure 1 A schematic diagram of the cross-sectional structure of the bottom of the mounting base shown;

[0025] Figure 5 for Figure 4 The diagram shows the structure of the chute.

[0026] The following are the labels in the diagram: 1. Protector body; 2. Terminal block; 3. First threaded pin; 4. First clamping block; 5. Second threaded pin; 6. Second clamping block; 7. Fixing base; 8. Hanging plate; 9. Third clamping plate; 10. Threaded rod; 11. Knob; 12. Vertical column; 13. Horizontal column; 14. First spring; 15. Locking post; 16. Second spring; 17. Slide groove; 18. Insert post; 19. Ball bearing; 20. Button. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0029] Please see Figures 1 to 5 A generator circuit overvoltage self-locking protection device includes: a protector body 1, a first clamping block 4, a fixing structure, and a pop-out structure. A terminal block 2 is fixedly connected to one side of the protector body 1. Multiple sets of first threaded nails 3 are symmetrically threaded to one side of the terminal block 2. First clamping blocks 4 for fixing wires are fixedly connected to both ends of the terminal block 2. Second threaded nails 5 are rotatably connected to both ends of the first clamping block 4. A second clamping block 6 is threaded to the end of the second threaded nail 5 away from the first clamping block 4. A fixing structure for fixing the protector is installed on the side of the terminal block 2 away from the protector body 1. The fixing structure includes a fixing seat 7. The fixing seat 7 is installed on the side of the terminal block 2 away from the protector body 1. A pop-out structure for extending the protector is installed inside the fixing seat 7. The end of the first threaded nail 3 inserted into the terminal block 2 has a rounded corner design. The side of the terminal block 2 is marked with live wire L and neutral wire N. The second threaded nail 5 has no threads on the part of its sidewall inside the first clamping block 4, and has threads on the part of its sidewall inside the second clamping block 6.

[0030] It should be noted that the rounded corner design of the first threaded nail 3 can prevent damage to the wire during the fixing process. The second locking block can be moved closer to or away from the first locking block by rotating the second threaded nail 5 without affecting the position of the second threaded nail 5 and the first locking block.

[0031] Please see Figure 1 and Figure 2 The fixing structure also includes: a hanging plate 8, a third clamping plate 9, a threaded rod 10 and a knob 11. The side of the fixing seat 7 away from the terminal block 2 is fixedly connected to the hanging plate 8. The side of the fixing seat 7 located below the hanging plate 8 is slidably connected to the third clamping plate 9. The bottom of the fixing seat 7 is threadedly connected to the threaded rod 10. The top of the threaded rod 10 is rotatably connected to the bottom of the third clamping plate 9. The bottom of the threaded rod 10 is fixedly connected to the knob 11. The sides of the hanging plate 8 and the third clamping plate 9 that are close to each other are provided with arc-shaped grooves.

[0032] It should be noted that the groove design of the hanging plate 8 and the third clamping plate 9 facilitates installation with fixing plates of various sizes;

[0033] Please see Figures 2 to 5The pop-up structure includes: a vertical column 12, a horizontal column 13, a first spring 14, a locking post 15, a second spring 16, a slide groove 17, a plug post 18, a ball bearing 19, and a button 20. The vertical column 12 is slidably connected inside the fixed base 7. Horizontal columns 13 are symmetrically fixedly connected to both sides of the vertical column 12. The bottom of each horizontal column 13 is fixedly connected to a first spring 14, one end of which is fixedly connected to the fixed base 7. A locking post 15 is symmetrically fixedly connected to the side of the terminal block 2 closest to the fixed base 7. The inner wall of the locking post 15 is fixedly connected to... The second spring 16 has one end fixedly connected to the fixed base 7. The bottom of the longitudinal column 12 is provided with a sliding groove 17. The bottom of the terminal block 2 is slidably connected with a plug 18. One end of the plug 18 is rotatably connected to a roller. The roller is slidably connected to the sliding groove 17 at the bottom of the longitudinal axis. The other end of the plug 18 is fixedly connected to a button 20. The bottom of the locking post 15 is designed with a slope. The side of the horizontal column 13 near the terminal block 2 is designed with a slope. The sliding groove 17 is designed with a slope. The longitudinal length of the sliding groove 17 is greater than the longitudinal length of the locking post 15.

[0034] It should be noted that the locking post 15 can use the inclined surface design to press the horizontal post 13 downwards, from one side of the horizontal post 13 to the other side. The insert post 18 can push the horizontal post 13 downwards by pressing the vertical post 12, thereby releasing the restriction on the locking post 15.

[0035] The working principle of the generator circuit overvoltage self-locking protection device provided by this utility model is as follows:

[0036] Overvoltage protection and automatic recovery:

[0037] The core function of the generator circuit overvoltage self-locking protection device is to automatically disconnect the circuit to protect the safety of the circuit and equipment when an overvoltage occurs in the generator circuit. When the voltage in the circuit exceeds the preset safety threshold, the protector body 1 can respond quickly. This response mechanism is achieved by monitoring the circuit voltage level. Once the voltage rises abnormally, the protector body 1 immediately disconnects the connection of the live wire, thereby achieving the effect of power outage and effectively preventing overvoltage from damaging the circuit and equipment. After the voltage stabilizes, after a preset delay (such as 25 seconds), the protector body 1 will automatically reconnect the live wire and restore the normal operation of the circuit. This process ensures that the circuit can be protected in a timely and effective manner when facing the threat of overvoltage, and can automatically restore power supply after the voltage returns to normal, maintaining the continuity and stability of the circuit.

[0038] Wire connection and fixing:

[0039] First, the wire is passed through the gap between the first clamp 4 and the second clamp 6, and then inserted into the holes opened at the top and bottom of the terminal block 2. Next, by rotating the first threaded nail 3, the first threaded nail 3 will squeeze the wire, making the wire and the terminal block 2 in close contact, thereby realizing the connection of the circuit. The rounded corner design of the first threaded nail 3 helps to reduce the damage to the wire during the clamping process. At the same time, by rotating the second threaded nail 5, the second threaded nail 5 will drive the second clamp 6 to move closer to the first clamp 4 and clamp the wire, further ensuring the secure connection of the wire. This double clamping mechanism provides a reliable way to fix the wire and effectively prevents the risk of the wire loosening or falling off.

[0040] Fixing and installing the device:

[0041] First, hang the hanging plate 8 on the fixed plate that is fixed to the wall. Then, by rotating the knob 11, the knob 11 drives the threaded rod 10 that is fixedly connected to it to rotate. The threaded rod 10 pushes the third clamping plate 9 closer to the hanging plate 8 through the rotation. Finally, the third clamping plate 9 and the hanging plate 8 cooperate to clamp the fixed plate, thereby completing the fixation of the device. This fixing method is not only firm and reliable, but also can adapt to fixed plates of different sizes, improving the applicability and flexibility of the device. In addition, the hanging plate 8 and the third clamping plate 9 are provided with arc-shaped grooves on the side that are close to each other. These grooves help to better clamp the fixed plate and prevent the device from loosening or falling off under the action of external factors such as vibration or wind.

[0042] Protector body 1 pops out during maintenance:

[0043] Pressing button 20 will cause the fixedly connected pin 18 to move closer to the vertical column 12. The roller connected to one side of the pin 18 will roll in the groove 17 at the bottom of the vertical column 12 and squeeze the vertical column 12 to slide downward. The downward movement of the vertical column 12 will cause the fixedly connected horizontal column 13 to slide downward and squeeze the first spring 14. During this process, the horizontal column 13 will release the locking effect on the locking pin 15. Under the push of the second spring 16, the locking pin 15 will move the fixedly connected terminal block 2 away from the fixed seat 7, thereby popping out the protector body 1 and the terminal block 2 for easy maintenance. The inclined surface design and longitudinal length of the groove 17 are greater than the longitudinal length of the locking pin 15, ensuring that the pin 18 can smoothly push the vertical column 12 down and release the lock. This pop-out mechanism not only simplifies the maintenance process, but also improves the safety and convenience of operation.

[0044] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A generator circuit overvoltage self-locking protection device, characterized in that, include: Protector body (1), a terminal block (2) is fixedly connected to one side of the protector body (1), and multiple sets of first threaded pins (3) are symmetrically threaded to one side of the terminal block (2). The first clamp (4) and the terminal block (2) are both fixedly connected to the first clamp (4) for fixing the wires. The first clamp (4) is rotatably connected to the second threaded nail (5) at both ends. The second threaded nail (5) is threaded to the second clamp (6) at the end away from the first clamp (4). The fixing structure includes a fixing seat (7) installed on the side of the terminal block (2) away from the protector body (1). The pop-out structure, the fixed base (7) has a pop-out structure installed inside for extending the protector.

2. The generator circuit overvoltage self-locking protection device according to claim 1, characterized in that, The fixing structure also includes: a hanging plate (8), a third clamping plate (9), a threaded rod (10) and a knob (11). The side of the fixing seat (7) away from the terminal block (2) is fixedly connected to the hanging plate (8). The side of the fixing seat (7) located below the hanging plate (8) is slidably connected to the third clamping plate (9). The bottom of the fixing seat (7) is threadedly connected to the threaded rod (10). The top of the threaded rod (10) is rotatably connected to the bottom of the third clamping plate (9). The bottom of the threaded rod (10) is fixedly connected to the knob (11).

3. The generator circuit overvoltage self-locking protection device according to claim 1, characterized in that, The pop-up structure includes: a vertical column (12), a horizontal column (13), a first spring (14), a locking post (15), a second spring (16), a slide (17), a plug post (18), a ball bearing (19), and a button (20). The vertical column (12) is slidably connected inside the fixed base (7). Horizontal columns (13) are symmetrically fixedly connected to both sides of the vertical column (12). The bottom of each horizontal column (13) is fixedly connected to a first spring (14). One end of each first spring (14) is fixedly connected to the fixed base (7). The wiring terminal ( 2) A locking post (15) is symmetrically fixedly connected to one side of the fixed base (7). A second spring (16) is fixedly connected to the inner wall of the locking post (15). One end of the second spring (16) is fixedly connected to the fixed base (7). A sliding groove (17) is opened at the bottom of the longitudinal column (12). A plug (18) is slidably connected to the bottom of the terminal block (2). A roller is rotatably connected to one end of the plug (18). The roller is slidably connected to the sliding groove (17) at the bottom of the longitudinal shaft. A button (20) is fixedly connected to the other end of the plug (18).

4. The generator circuit overvoltage self-locking protection device according to claim 2, characterized in that, Both the hanging plate (8) and the third clamping plate (9) have arc-shaped grooves on their sides that are close to each other.

5. The generator circuit overvoltage self-locking protection device according to claim 3, characterized in that, The bottom of the card post (15) is designed with a slope, and the side of the horizontal post (13) near the terminal block (2) is designed with a slope.

6. The generator circuit overvoltage self-locking protection device according to claim 3, characterized in that, The slide (17) is designed with an inclined surface, and the longitudinal length of the slide (17) is greater than the longitudinal length of the locking post (15).

7. The generator circuit overvoltage self-locking protection device according to claim 1, characterized in that, The first threaded pin (3) is inserted into the terminal block (2) with a rounded corner design. The side of the terminal block (2) is marked with live wire L and neutral wire N.

8. The generator circuit overvoltage self-locking protection device according to claim 1, characterized in that, The second threaded nail (5) has no threads on the part of its sidewall inside the first clamping block (4), while the second threaded nail (5) has threads on the part of its sidewall inside the second clamping block (6).

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