Overload alarm device for power transmission and transformation equipment

Abstract

The utility model relates to power equipment protection technical field discloses a kind of power transmission and transformation equipment overload alarm device, including overload alarm equipment main part, and the side of overload alarm equipment main part is equipped with audible and visual alarm, and the back of overload alarm equipment main part is equipped with fixed mechanism, and the side of fixed mechanism away from overload alarm equipment main part is detachably connected with hoop one, and the side of hoop one is connected with hoop two by fixed bolt;Fixed mechanism includes mounting plate, and the one end of mounting plate and hoop one is detachably connected, and the side of mounting plate close to overload alarm equipment main part is equipped with several fixed slots with rectangular distribution, and fixed slot is equipped with fixed block, and the one end of fixed block and the back of overload alarm equipment main part is fixedly connected;The utility model is through the linkage of driving block, drive column and oval cam and torsion spring reset, equipment main part is realized fast disassembly and assembly, and mounting plate and the detachable cooperation of hoop adapt different telegraph poles, reduce maintenance cost and personnel intensity, improve operating efficiency.

Description

Technical Field

[0001] This utility model relates to the field of power equipment protection technology, and in particular to an overload alarm device for power transmission and transformation equipment. Background Technology

[0002] Overload alarm devices for power transmission and transformation equipment are key equipment for ensuring the safe and stable operation of power systems. They mainly consist of a signal acquisition module, a signal processing module, an alarm control module, a communication module, a power supply module, and a protective enclosure. The signal acquisition module includes current transformers and voltage transformers to collect real-time current and voltage signals from the equipment. The signal processing module analyzes and judges the collected signals through a microprocessor. The alarm control module is equipped with components such as buzzers and alarm lights to provide overload warnings. All core modules are integrated into the protective enclosure to form a compact overall device.

[0003] Traditional overload alarm devices for power transmission and transformation equipment are typically fixed to utility poles using clamps and bolts. This installation method requires multiple people to work together to adjust the device's position to align with the bolt holes before tightening each bolt individually. The installation process is cumbersome and time-consuming. When the equipment malfunctions and needs to be disassembled for maintenance, special tools are required to loosen multiple bolts sequentially before removing the device. This complex procedure not only increases the workload and maintenance time for maintenance personnel but also risks damage to components such as stripped bolts and deformed clamps due to repeated disassembly and reassembly, further increasing maintenance costs and severely impacting the convenience and efficiency of maintenance. Utility Model Content

[0004] Given that the existing traditional overload alarm devices for power transmission and transformation equipment are installed by using clamps and bolts to fix them to the power poles, which has problems such as cumbersome and time-consuming installation, complicated disassembly, inspection and maintenance operations, easy damage to components and high maintenance costs, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an overload alarm device for power transmission and transformation equipment, including an overload alarm device body, an audible and visual alarm on one side of the overload alarm device body, a fixing mechanism on the back of the overload alarm device body, a clamp first detachably connected to the fixing mechanism on the side away from the overload alarm device body, and a clamp second connected to one side of the clamp first by a fixing bolt; The fixing mechanism includes a mounting plate, which is detachably connected to a clamp at one end. The mounting plate has a plurality of fixing slots arranged in a rectangular pattern on the side near the overload alarm device body. Fixing blocks are provided in the fixing slots, and one end of the fixing blocks is fixedly connected to the back of the overload alarm device body.

[0006] As a preferred embodiment, the fixing mechanism further includes drive blocks. A cavity is formed in the middle of the mounting plate. The drive blocks are symmetrically arranged in the cavity, and one of the outer ends of the two drive blocks extends to the outer side of the mounting plate. The drive blocks are located between adjacent fixing slots. Two insert rods are provided on the outer sides of the drive blocks, and one end of the insert rod passes through one side of the fixing block. A mounting shaft is fixedly installed in the middle of the cavity. A cam is rotatably sleeved on the outer wall of the mounting shaft, and the cam is located behind the drive blocks. A drive groove is formed on the front of the cam. Drive columns are symmetrically arranged in the drive groove, and one end of the drive column is fixedly connected to the drive block. A torsion spring is sleeved on the outer side of the mounting shaft in front of the cam, and both ends of the torsion spring are fixedly connected to the cam and the inner wall of the cavity, respectively.

[0007] As a preferred embodiment, guide rods are symmetrically arranged inside the cavity, and the two ends of the guide rods pass through the driving blocks on both sides respectively.

[0008] As a preferred embodiment, the driving block has a T-shaped structure, the fixing block has an L-shaped structure, and the height of the opening of the fixing slot is the same as the height of the vertical part of the fixing block.

[0009] As a preferred embodiment, the cam has an elliptical structure, and the cam is rotatably connected to the mounting shaft via a bearing, with the drive groove concentric with the cam.

[0010] As a preferred embodiment, the mounting plate has symmetrically arranged threaded posts on its back side, and the clamp has symmetrically arranged mounting grooves on its inner wall. One end of the threaded post is threadedly connected to a fixing nut in the mounting groove.

[0011] Compared with the prior art, the present invention has at least the following beneficial effects: 1. In the fixing mechanism of this utility model, the linkage between the driving block, the driving column and the elliptical cam, combined with the reset effect of the torsion spring, only the driving block needs to be pushed to quickly release the limit of the plug rod on the fixing block. Without the need for special tools, the main body of the overload alarm device can be quickly disassembled and assembled, which greatly reduces the workload of maintenance personnel, shortens the installation and subsequent maintenance time, and improves the convenience and efficiency of operation.

[0012] 2. The mounting plate of this utility model is fixed to the utility pole by threaded post and fixing nut in conjunction with clamp one and clamp two. Not only can the appropriate clamp be flexibly replaced according to the diameter of the utility pole, but the detachable design of the fixing mechanism and the main body of the overload alarm device avoids the component damage caused by traditional bolt disassembly and assembly, effectively reducing maintenance costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the rear view structure of this utility model; Figure 3 This is a partial cross-sectional view of the mounting plate of this utility model. Figure 4 This is a schematic diagram of the structure between the drive block and the cam of this utility model.

[0014] Explanation of reference numerals in the attached figures: 1. Overload alarm device main body; 2. Audible and visual alarm; 3. Mounting plate; 4. Clamp one; 5. Clamp two; 6. Fixing bolt; 7. Cavity; 8. Drive block; 9. Insert rod; 10. Fixing block; 11. Fixing groove; 12. Mounting shaft; 13. Cam; 14. Torsion spring; 15. Guide rod; 16. Drive column; 17. Drive groove; 18. Threaded column; 19. Fixing nut; 20. Mounting groove. Detailed Implementation

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0016] Reference Figure 1 - Figure 4 As shown, an overload alarm device for power transmission and transformation equipment is provided, including an overload alarm device body 1, an audible and visual alarm 2 on one side of the overload alarm device body 1, and a fixing mechanism on the back of the overload alarm device body 1. A clamp 4 is detachably connected to the fixing mechanism on the side away from the overload alarm device body 1, and a clamp 5 is connected to the clamp 4 on the side of the clamp 4 by a fixing bolt 6. The clamp 4, clamp 5 and fixing bolt 6 can be used to achieve a stable fixation of the mounting plate 3 on the utility pole, and at the same time lay the foundation for flexible replacement of the clamp in the future, reducing maintenance costs. The fixing mechanism includes a mounting plate 3, which is detachably connected to one end of a clamp 4. The mounting plate 3 has a plurality of fixing slots 11 arranged in a rectangular pattern on the side near the overload alarm device body 1. Fixing blocks 10 are provided in the fixing slots 11, and one end of the fixing blocks 10 is fixedly connected to the back of the overload alarm device body 1. Through the cooperation of the fixing blocks 10 and the fixing slots 11, the initial positioning of the overload alarm device body 1 and the mounting plate 3 can be quickly achieved, providing a prerequisite for subsequent quick disassembly and assembly, and improving installation efficiency.

[0017] In this example, the fixing mechanism also includes drive blocks 8. A cavity 7 is provided in the middle of the mounting plate 3. Drive blocks 8 are symmetrically arranged in the cavity 7, and the outer ends of the two drive blocks 8 extend to the outer side of the mounting plate 3. The drive blocks 8 are located between adjacent fixing slots 11. Two insert rods 9 are provided on the outer sides of the drive blocks 8, and one end of the insert rod 9 passes through a fixing block 10 on one side. A mounting shaft 12 is fixedly installed in the middle of the cavity 7. A cam 13 is rotatably sleeved on the outer wall of the mounting shaft 12, and the cam 13 is located behind the drive blocks 8. A drive groove 17 is provided on the front of the cam 13. Drive columns 16 are symmetrically positioned within the moving groove 17, with one end of each drive column 16 fixedly connected to the drive block 8. A torsion spring 14 is sleeved on the outer side of the mounting shaft 12 in front of the cam 13, with both ends of the torsion spring 14 fixedly connected to the cam 13 and the inner wall of the cavity 7, respectively. Through the linkage between the drive block 8, the drive column 16, and the elliptical cam 13, combined with the resetting effect of the torsion spring 14, the limit of the plug rod 9 on the fixed block 10 can be quickly released by simply pushing the drive block 8. No special tools are required, enabling quick disassembly and assembly of the overload alarm device body 1, reducing the workload of maintenance personnel and shortening maintenance time.

[0018] In this example, guide rods 15 are symmetrically arranged inside the cavity 7, and the two ends of the guide rods 15 pass through the driving blocks 8 on both sides respectively; the guide rods 15 can accurately guide the movement of the driving blocks 8, prevent the driving blocks 8 from deviating when moving, ensure that the insertion rod 9 can accurately cooperate or separate from the fixed block 10, and improve the stability of the structure operation.

[0019] In this example, the drive block 8 has a T-shaped structure, the fixing block 10 has an L-shaped structure, and the height of the opening of the fixing slot 11 is the same as the height of the vertical part of the fixing block 10. The structural design of the T-shaped drive block 8 and the L-shaped fixing block 10, combined with the size adaptation of the fixing slot 11, can enhance the stability of the overload alarm device body 1 after installation, and at the same time facilitate the quick entry and exit of the fixing block 10 into and out of the fixing slot 11, further improving the ease of disassembly and assembly.

[0020] In this example, the cam 13 has an elliptical structure. The cam 13 is rotatably connected to the mounting shaft 12 via a bearing. The drive groove 17 is concentric with the cam 13. The design of the elliptical cam 13 and the concentric drive groove 17 ensures that the drive column 16 drives the cam 13 to rotate smoothly. The bearing connection reduces frictional resistance and improves the service life and smooth operation of the linkage mechanism.

[0021] In this example, the mounting plate 3 has symmetrically arranged threaded posts 18 on its back, and the inner wall of the clamp 4 has symmetrically arranged mounting grooves 20. One end of the threaded post 18 is threaded into the mounting groove 20 and a fixing nut 19 is connected. The cooperation between the threaded post 18 and the fixing nut 19 enables the mounting plate 3 and the clamp 4 to be detachably connected. This allows for flexible replacement of the appropriate clamp 4 and clamp 5 according to the diameter of the utility pole, avoiding the component damage problem of traditional installation methods and reducing maintenance costs.

[0022] During use, the entire installation and fixing process is as follows: First, select the appropriate clamp 14 and clamp 25 according to the diameter of the utility pole. Insert the threaded post 18 on the back of the mounting plate 3 into the mounting groove 20 of clamp 14, and use the fixing nut 19 to fix the mounting plate 3 and clamp 14. Then, use the fixing bolt 6 to lock clamp 14 and clamp 25 onto the utility pole to achieve a stable and fixed installation foundation for the device.

[0023] Overload alarm operation: The internal module of the overload alarm device 1 monitors the current and voltage signals of the power transmission and transformation equipment in real time. When an overload is detected, it triggers the audible and visual alarm 2 on one side to issue an audible and visual alarm signal to remind the staff to deal with it in time.

[0024] Equipment body installation: Push the drive blocks 8 extending outward from both sides of the cavity 7 of the mounting plate 3. Under the guidance of the guide rod 15, the drive blocks 8 move inward, causing the drive column 16 at one end to slide in the drive groove 17 of the elliptical cam 13. This drives the cam 13 to rotate around the mounting shaft 12 and twist the torsion spring 14. The drive blocks 8 on both sides simultaneously drive the insertion rod 9 to retract inward. Align the L-shaped fixing block 10 on the back of the overload alarm device body 1 with the fixing groove 11 on the mounting plate 3 and insert it. Release the drive block 8. The torsion spring 14 resets and drives the cam 13 to rotate in the opposite direction. The drive column 16 pushes the drive block 8 and the insertion rod 9 to reset, so that the insertion rod 9 passes through the fixing block 10, completing the quick fixation of the overload alarm device body 1. The size fit between the T-shaped drive block 8 and the fixing groove 11 further improves the installation stability.

[0025] Equipment body disassembly and maintenance: When maintenance is required, push the drive block 8 again. Through the linkage of the drive column 16 and the cam 13, the insertion rod 9 is separated from the fixed block 10. After the limit is released, lift and pull the overload alarm equipment body 1 to move the fixed block 10 out of the fixed groove 11. The equipment body can be quickly removed without special tools, improving the convenience of maintenance.

[0026] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An overload alarm device for power transmission and transformation equipment, comprising an overload alarm device body (1), characterized in that: The overload alarm device body (1) is provided with an audible and visual alarm (2) on one side, and a fixing mechanism is provided on the back of the overload alarm device body (1). The fixing mechanism is detachably connected to a clamp one (4) on the side away from the overload alarm device body (1), and a clamp two (5) is connected to the side of the clamp one (4) by a fixing bolt (6). The fixing mechanism includes a mounting plate (3), which is detachably connected to one end of a clamp (4). The mounting plate (3) has a rectangular distribution of several fixing slots (11) on one side near the overload alarm device body (1). The fixing slots (11) are provided with fixing blocks (10), and one end of the fixing blocks (10) is fixedly connected to the back of the overload alarm device body (1).

2. The overload alarm device for power transmission and transformation equipment according to claim 1, characterized in that: The fixing mechanism also includes a drive block (8). A cavity (7) is provided in the middle of the mounting plate (3). The drive blocks (8) are symmetrically arranged in the cavity (7), and the outer ends of the two drive blocks (8) extend to the outer side of the mounting plate (3) respectively. The drive blocks (8) are located between adjacent fixing slots (11). Two insert rods (9) are provided on the outer sides of the drive blocks (8), and one end of the insert rod (9) passes through a fixing block (10) on one side. A mounting device is fixedly installed in the middle of the cavity (7). Shaft (12), the outer wall of the mounting shaft (12) is rotatably fitted with a cam (13), and the cam (13) is located behind the drive block (8). The front of the cam (13) is provided with a drive groove (17), and drive columns (16) are provided symmetrically in the drive groove (17). One end of the drive column (16) is fixedly connected to the drive block (8). The outer side of the mounting shaft (12) is fitted with a torsion spring (14) in front of the cam (13), and the two ends of the torsion spring (14) are fixedly connected to the cam (13) and the inner wall of the cavity (7) respectively.

3. The overload alarm device for power transmission and transformation equipment according to claim 2, characterized in that: The cavity (7) is symmetrically provided with guide rods (15), and the two ends of the guide rods (15) pass through the driving blocks (8) on both sides respectively.

4. The overload alarm device for power transmission and transformation equipment according to claim 3, characterized in that: The driving block (8) has a T-shaped structure, the fixing block (10) has an L-shaped structure, and the height of the opening of the fixing groove (11) is the same as the height of the vertical part of the fixing block (10).

5. The overload alarm device for power transmission and transformation equipment according to claim 4, characterized in that: The cam (13) has an elliptical structure and is rotatably connected to the mounting shaft (12) via a bearing. The drive groove (17) is concentric with the cam (13).

6. The overload alarm device for power transmission and transformation equipment according to claim 2, characterized in that: The mounting plate (3) has symmetrically arranged threaded posts (18) on the back side, and the inner wall of the clamp (4) has symmetrically arranged mounting grooves (20). One end of the threaded post (18) is threadedly connected to a fixing nut (19) in the mounting groove (20).

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