A protective structure for a surge arrester monitoring instrument

Abstract

This utility model belongs to the field of lightning arrester monitoring instrument protection technology, specifically relating to a protective structure for a lightning arrester monitoring instrument. It includes a fixing device, with a support plate rotatably connected to the top of the fixing device via a rotating connection structure. A protective box is fixedly installed on the upper surface of the support plate. The protective box contains a limiting structure for fixing the lightning arrester monitoring instrument. Convection holes are provided at both ends of the protective box. The bottom of the protective box is rotatably connected to a rotating seat via a rotating shaft. A buffer cover is slidably connected to the top of the protective box. A wind deflector is installed at the center of the top wall of the buffer cover via a connecting rod. When a certain velocity of airflow occurs in the external environment, the wind deflector is pushed by the airflow and rotates to be parallel to the airflow direction, causing the protective box and the wind deflector to rotate in the same direction. This ensures that the convection holes always face the direction of airflow, facilitating the flow of air through the convection holes to dissipate heat from the lightning arrester monitoring instrument, greatly improving heat dissipation efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of lightning arrester monitoring instrument protection technology, specifically relating to a protective structure for a lightning arrester monitoring instrument. Background Technology

[0002] A surge arrester monitoring instrument is a device connected in series below the surge arrester to record the number of surge arrester operations and monitor leakage current. Based on changes in leakage current, abnormal conditions caused by internal moisture or mechanical damage during surge arrester operation can be promptly identified, preventing accidents and improving the reliability of power system operation.

[0003] Surge arrester monitoring instruments are generally installed outdoors. To prevent falling objects from heights and rainwater from affecting the monitoring instruments, a protective box is installed outside the surge arrester monitoring instrument for protection. To ensure heat dissipation of the surge arrester monitoring instrument, heat dissipation holes are also opened on the protective box. When there is air movement in the environment, air can enter the protective box through the heat dissipation holes to dissipate heat from the surge arrester monitoring instrument. However, when the direction of air movement in the external environment is not parallel to the axial direction of the heat dissipation holes, the air will be blocked by the side wall of the protective box, resulting in poor heat dissipation effect of the surge arrester monitoring instrument. Utility Model Content

[0004] The purpose of this utility model is to provide a protective structure for a surge arrester monitoring instrument that is simple in structure and reasonably designed in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A protective structure for a surge arrester monitor includes a fixing device. A support plate is rotatably connected to the top of the fixing device via a rotating connection structure. A protective box is fixedly installed on the upper surface of the support plate. A limiting structure for fixing the surge arrester monitor is provided inside the protective box. Convection holes are provided at both ends of the protective box. A buffer cover is slidably fitted on the top of the protective box. The bottom end of the buffer cover is connected to the support plate via a buffer assembly. A connecting rod is fixedly connected to the center of the top wall of the buffer cover. A wind baffle is snapped onto the connecting rod.

[0007] As a further optimization of this utility model, the fixing device includes a fixing base, and the fixing base has a plurality of fixing holes arranged in a ring around its periphery. Bolts are inserted into the fixing holes and are screwed to the bottom base of the surge arrester after passing through the fixing holes.

[0008] As a further optimization of this utility model, the rotary connection structure includes a rotary seat fixedly installed on the upper surface of the fixed seat, a rotating shaft rotatably connected to the rotary seat is provided at the top of the rotary seat, the rotating shaft is coaxially arranged with the rotary seat, and the support plate is fixedly installed on the top of the rotating shaft.

[0009] As a further optimization of this utility model, the limiting structure is a chuck fixedly installed on the bottom wall of the inner cavity of the protective box. The top of the chuck is provided with a slot, and the size and shape of the inner cavity of the slot are set according to the model of the surge arrester monitoring instrument.

[0010] As a further optimization of this utility model, guide grooves are provided at the four corners of the protective box, and guide sliders are integrally formed on the inner wall of the buffer cover. The guide sliders are slidably connected to the protective box through the guide grooves.

[0011] As a further optimization of this utility model, the buffer assembly includes a damping buffer fixedly connected to the support plate outside the guide groove, a connector fixedly connected to the top of the damping buffer, and an ear plate fixedly connected to the outer wall of the bottom end of the buffer cover. The ear plate cooperates with the connector to fix the damping buffer.

[0012] As a further optimization of this utility model, the top of the buffer cover is provided with an elastic plate with an arc-shaped structure. Both ends of the elastic plate are fixed to the top wall of the buffer cover, and the center of the elastic plate is sleeved on the connecting rod and slidably connected to the connecting rod.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The bottom of the protective box is rotatably connected to the rotating seat via a rotating shaft. A buffer cover is slidably connected to the top of the protective box. A wind deflector is installed at the center of the top wall of the buffer cover via a connecting rod. When the external environment generates flowing air at a certain speed, the wind deflector will rotate to be parallel to the direction of air flow due to the thrust generated by the air flow, and drive the protective box and the wind deflector to rotate in the same direction. This ensures that the convection hole is always facing the direction of air flow, which facilitates the flow of air through the convection hole to dissipate heat from the surge arrester monitoring instrument, greatly improving the heat dissipation efficiency.

[0015] 2. The support plate is equipped with multiple damping buffers in a matrix. The bottom of the buffer cover is connected to the top of the damping buffer through a lug joint. The top of the buffer cover is also equipped with an arc-shaped elastic plate. When a falling object hits the top of the protective box, the elastic deformation of the elastic plate after impact, combined with the buffering effect generated by the compression of the damping buffer when it is compressed, protects the buffer cover and the protective box, minimizing the risk of hard impact between the buffer cover and the protective box and the falling object, thus preventing damage. Attached Figure Description

[0016] Figure 1 This is an exploded view of the overall structure of this utility model;

[0017] Figure 2 This is a utility model Figure 1 Enlarged view of a close-up detail at point A in the middle;

[0018] Figure 3 This is a schematic diagram of the internal structure of the protective box of this utility model;

[0019] Figure 4 This is a utility model Figure 3 A schematic diagram of the cross-sectional structure.

[0020] In the diagram: 1. Fixed seat; 2. Fixed hole; 3. Rotary seat; 4. Rotating shaft; 5. Support plate; 6. Protective box; 7. Chuck; 8. Slot; 9. Convection hole; 10. Guide groove; 11. Damping buffer; 12. Connector; 13. Buffer cover; 14. Ear plate; 15. Connecting rod; 16. Wind deflector; 17. Elastic plate. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] Example

[0023] like Figures 1-4 As shown, a protective structure for a surge arrester monitoring instrument includes a fixing device. The fixing device includes a fixing base 1. The fixing base 1 has multiple fixing holes 2 arranged in a ring around its periphery. Bolts are inserted into the fixing holes 2. After passing through the fixing holes 2, the bolts are screwed to the bottom base of the surge arrester. The bolted fixing method not only ensures a stable connection but also facilitates the installation and disassembly of the fixing base 1.

[0024] A rotating seat 3 is fixedly installed on the upper surface of the fixed seat 1. A rotating shaft 4, which is rotatably connected to the rotating seat 3, is passed through the top of the rotating seat 3. The rotating shaft 4 is coaxial with the rotating seat 3. A support plate 5 is fixedly connected to the top of the rotating shaft 4. When the support plate 5 is subjected to an external force, it can drive the rotating shaft 4 to rotate around the axis of the rotating shaft 4.

[0025] A protective box 6 is fixedly installed on the upper surface of the tray 5. A chuck 7 is fixedly installed on the bottom wall of the inner cavity of the protective box 6. A slot 8 is opened on the top of the chuck 7. The size and shape of the inner cavity of the slot 8 are set according to the model of the surge arrester monitor. When in use, the surge arrester monitor can be fixed to the chuck 7 inside the protective box 6 through the slot 8. The protective box 6, which is sleeved around the chuck 7, protects the surge arrester monitor.

[0026] Convection holes 9 are provided at both ends of the protective box 6. The convection holes 9 at both ends of the protective box 6 are symmetrically arranged. When the flowing air enters the protective box 6 from the convection hole 9 at one end of the protective box 6, it can quickly pass through the protective box 6 and be discharged from the convection hole 9 at the other end, thereby quickly dissipating the heat generated when the surge arrester monitor is working.

[0027] A buffer cover 13 is slidably fitted on the top of the protective box 6. The buffer cover 13 is used to protect the top of the protective box 6. Guide grooves 10 are provided at the four corners of the protective box 6. A guide slider is integrally formed on the inner wall of the buffer cover 13. The guide slider is slidably connected to the protective box 6 through the guide grooves 10 and is used to guide the sliding path of the buffer cover 13.

[0028] A damping buffer 11 is fixedly connected to the support plate 5 on the outer side of the guide groove 10. A connector 12 is fixedly connected to the top of the damping buffer 11. An ear plate 14 is fixedly connected to the outer wall of the bottom end of the buffer cover 13. The ear plate 14 is fixed to the damping buffer 11 in conjunction with the connector 12. When a falling object hits the buffer cover 13, the buffer cover 13 will slide down along the guide groove 10 after being impacted and squeeze the damping buffer 11. The damping buffer 11 will buffer the impact, which will improve the protection effect of the surge arrester monitoring instrument and at the same time, can minimize the problem of hard impact between the falling object and the buffer cover 13, which would damage the buffer cover 13.

[0029] A connecting rod 15 is fixedly connected to the center of the top wall of the buffer cover 13. A baffle plate 16 is snapped onto the connecting rod 15. The length of the baffle plate 16 is parallel to the axial direction of the convection hole 9. The lengths of the baffle plate 16 on both sides of the connecting rod 15 are asymmetrical. When the external environment generates flowing air, the baffle plate 16 will rotate to be parallel to the direction of air flow due to the thrust generated by the air flow. During the rotation of the baffle plate 16, it will drive the rotating shaft 4 at the bottom of the protective box 6 to rotate synchronously through the connecting rod 15 and the buffer cover 13, so that the protective box 6 and the baffle plate 16 rotate in the same direction. This ensures that when there is flowing air with a certain velocity in the external environment, the convection hole 9 is always facing the direction of air flow, which facilitates the flow of air through the convection hole 9 to dissipate heat from the surge arrester monitor, greatly improving the heat dissipation efficiency.

[0030] The top of the buffer cover 13 is provided with an arc-shaped elastic plate 17. Both ends of the elastic plate 17 are fixed to the top wall of the buffer cover 13. The center of the elastic plate 17 is sleeved on the connecting rod 15 and slidably connected to the connecting rod 15. When a falling object hits the elastic plate 17, the elastic plate 17 can buffer the impact through elastic deformation, further protecting the buffer cover 13 and the surge arrester monitoring instrument.

[0031] It should be noted that, in use, the protective structure of this surge arrester monitor involves installing the protective box 6 onto the base of the surge arrester via the fixing seat 1, and then snapping the surge arrester monitor into the slot 8 on the top of the chuck 7. The buffer cover 13 can then be fitted onto the top of the protective box 6 and connected to the damping buffer 11 via the ear plate 14 and connector 12. Since a wind deflector 16 is fixed to the center of the top wall of the buffer cover 13 via a connecting rod 15, when airflow occurs in the external environment, the wind deflector 16 will rotate parallel to the airflow direction due to the thrust generated by the airflow. During the rotation of the wind deflector 16, the connecting rod 15 and the buffer cover 13 will drive the rotating shaft 4 at the bottom of the protective box 6 to rotate synchronously, ensuring that the protective box 6 and the wind deflector 16 rotate in the same direction. This ensures that when there is a certain flow of air in the external environment, the convection hole 9 always faces the direction of airflow, facilitating the flow of air through the convection hole 9 to dissipate heat from the surge arrester monitor, greatly improving heat dissipation efficiency.

[0032] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A protective structure for a surge arrester monitoring instrument, comprising a fixing device, characterized in that: A support plate (5) is rotatably connected to the top of the fixing device via a rotating connection structure. A protective box (6) is fixedly installed on the upper surface of the support plate (5). A limiting structure for fixing the surge arrester monitoring instrument is provided inside the protective box (6). Convection holes (9) are provided at both ends of the protective box (6). A buffer cover (13) is slidably fitted on the top of the protective box (6). The bottom end of the buffer cover (13) is connected to the support plate (5) via a buffer assembly. A connecting rod (15) is fixedly connected to the center of the top wall of the buffer cover (13). A wind baffle (16) is snapped onto the connecting rod (15).

2. The protective structure of a surge arrester monitoring instrument according to claim 1, characterized in that: The fixing device includes a fixing base (1), and the fixing base (1) has a plurality of fixing holes (2) arranged in a ring around its periphery. Bolts are inserted into the fixing holes (2) and are screwed to the bottom base of the surge arrester after passing through the fixing holes (2).

3. The protective structure of a surge arrester monitoring instrument according to claim 2, characterized in that: The rotating connection structure includes a rotating seat (3) fixedly installed on the upper surface of the fixed seat (1), a rotating shaft (4) rotatably connected to the rotating seat (3) is provided at the top of the rotating seat (3), the rotating shaft (4) is coaxially arranged with the rotating seat (3), and the support plate (5) is fixedly installed on the top of the rotating shaft (4).

4. The protective structure of a surge arrester monitoring instrument according to claim 1, characterized in that: The limiting structure is a chuck (7) fixedly installed on the bottom wall of the inner cavity of the protective box (6). The top of the chuck (7) is provided with a slot (8). The size and shape of the inner cavity of the slot (8) are set according to the model of the surge arrester monitor.

5. The protective structure of a surge arrester monitoring instrument according to claim 4, characterized in that: The protective box (6) has guide grooves (10) at each of its four corners. The inner wall of the buffer cover (13) is integrally formed with a guide slider, which is slidably connected to the protective box (6) through the guide grooves (10).

6. The protective structure of a surge arrester monitoring instrument according to claim 5, characterized in that: The buffer assembly includes a damping buffer (11) fixedly connected to the support plate (5) outside the guide groove (10), a connector (12) fixedly connected to the top of the damping buffer (11), and an ear plate (14) fixedly connected to the outer wall of the bottom end of the buffer cover (13). The ear plate (14) cooperates with the connector (12) to fix the damping buffer (11).

7. The protective structure of a surge arrester monitoring instrument according to claim 1, characterized in that: The top of the buffer cover (13) is provided with an elastic plate (17) with an arc-shaped structure. Both ends of the elastic plate (17) are fixed to the top wall of the buffer cover (13). The center of the elastic plate (17) is sleeved on the connecting rod (15) and slidably connected to the connecting rod (15).

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