A discharge instrument with overload protection structure

Abstract

This utility model discloses a discharge instrument with an overload protection structure, including a housing. Inside the housing are a detection module, a control module, and a protection module. A panel is fixedly connected to the front of the housing, and a first baffle and a second baffle are hinged to both sides of the housing. A horizontal column is fixedly connected to the top of each of the first and second baffles, and a locking block is inserted into the side wall of each horizontal column. This utility model relates to the field of discharge instrument technology. This discharge instrument with an overload protection structure, through the cooperation of a turntable, connecting column, vertical plate, locking block, and torsion spring, increases the maintenance space when repairing components. It solves the problem that when components inside the discharge instrument are damaged and require repair, the internal wiring and component layout is compact after the front or back cover is removed, resulting in extremely narrow operating space for maintenance personnel and the risk of secondary damage to other components due to improper operation, thus reducing the efficiency of discharge instrument repair.

Description

Technical Field

[0001] This utility model relates to the field of discharge instrument technology, specifically a discharge instrument with an overload protection structure. Background Technology

[0002] A discharge tester is an important tool for the maintenance and testing of electrical equipment. It is used to release residual charges in the equipment, ensuring the safety of maintenance personnel and the normal operation of the equipment. In power plants or water conservancy industries, discharge testers are frequently used to test electrical equipment within the power plant or water conservancy system.

[0003] When the discharge instrument is working, the staff connects the discharge instrument to the power equipment inside the power plant or water conservancy through test lines to test the power equipment. However, when internal components of the discharge instrument are damaged and need repair, the usual practice is to remove the front or back cover of the discharge instrument and then inspect and repair the damaged components. After the front or back cover is removed, the internal circuitry and component layout is compact, and the operating space for maintenance personnel is extremely narrow. This is especially true for components located in the middle or deep within the equipment, which are difficult to reach with fingers and may even require the use of special tools for disassembly. This is not only time-consuming and labor-intensive, but also prone to causing secondary damage to other components due to improper operation, thereby reducing the maintenance efficiency of the discharge instrument. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a discharge instrument with an overload protection structure. This solves the problem that when internal components of the discharge instrument are damaged and require repair, the internal wiring and component layout is compact after the front or back cover is removed, resulting in extremely narrow operating space for maintenance personnel. This not only consumes time and effort but also easily causes secondary damage to other components due to improper operation, thereby reducing the efficiency of discharge instrument repair.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a discharge instrument with an overload protection structure, comprising a housing, wherein a detection module, a control module, and a protection module are respectively disposed inside the housing, a panel is fixedly connected to the front of the housing, a first baffle and a second baffle are respectively hinged to the two sides of the housing, a horizontal column is fixedly connected to the top of the first baffle and the second baffle, a locking block is inserted into the side wall of the horizontal column, a vertical plate is fixedly connected to the side wall of the locking block, a connecting column is rotatably connected to the side wall of the vertical plate by a pin, a turntable is rotatably connected to the end of the connecting column by a pin, and a rotating shaft is fixedly connected to the inner wall of the turntable.

[0006] Preferably, a cover is rotatably connected above the outer wall of the rotating shaft, the inner wall of the cover is inserted into the outer wall of the horizontal column, the top of the vertical plate is slidably engaged with the inner top of the cover, and a torsion spring is fixed between the cover and the rotating shaft.

[0007] Preferably, an interface is fixedly connected to the front of the housing, the interface is located below the panel, and a plug is inserted into the inner wall of the interface.

[0008] Preferably, a first crossbar is fixedly connected to the front of the plug, an elastic rope is fixedly connected to the end of the first crossbar, a second crossbar is fixedly connected to the end of the elastic rope, the end of the second crossbar is fixedly connected to the front of the outer shell, and the second crossbar is located below the interface.

[0009] Preferably, a first crossbar is fixedly connected to the front of the plug, an elastic rope is fixedly connected to the end of the first crossbar, a second crossbar is fixedly connected to the end of the elastic rope, the end of the second crossbar is fixedly connected to the front of the outer shell, and the second crossbar is located below the interface.

[0010] This utility model provides a discharge instrument with an overload protection structure. It has the following advantages: This discharge instrument with overload protection structure, through the cooperation of the cover, rotating shaft, turntable, connecting column, vertical plate, locking block, and torsion spring, increases the repair space when repairing components, facilitating repair and improving repair efficiency. It solves the problem that when components inside the discharge instrument are damaged and require repair, the internal wiring and component layout is compact after the front or back cover is removed, resulting in extremely limited operating space for repair personnel. This not only consumes time and effort but also easily causes secondary damage to other components due to improper operation, thus reducing the efficiency of discharge instrument repair.

[0011] The cooperation between the first horizontal bar, the elastic rope, and the second horizontal bar prevents the plug cap 19 from being lost. This solves the problem that, due to the small size of the plug, it is easy for it to fall to the ground and be lost when the operator removes it during use. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 An exterior schematic diagram; Figure 3 for Figure 1 A structural diagram of the central cover, rotating shaft, and turntable; Figure 4 for Figure 2 A schematic diagram of the structure of the middle interface, the plug, and the first crossbar.

[0013] In the diagram: 1. Outer shell; 2. Detection module; 3. Control module; 4. Protection module; 5. Panel; 6. Support leg; 7. Base plate; 8. First baffle; 9. Second baffle; 10. Horizontal column; 11. Cover; 12. Rotating shaft; 13. Turntable; 14. Connecting column; 15. Vertical plate; 16. Locking block; 17. Torsion spring; 18. Interface; 19. Cover; 20. First horizontal bar; 21. Elastic rope; 22. Second horizontal bar. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] When internal components of the discharge instrument are damaged and require repair, the internal wiring and component layout is compact after the front or back cover is removed, leaving extremely limited operating space for maintenance personnel. This not only consumes time and effort but also easily causes secondary damage to other components due to improper operation, thereby reducing the maintenance efficiency of the discharge instrument.

[0016] In view of this, the present invention provides a discharge instrument with an overload protection structure. Through the cooperation between the cover, rotating shaft, turntable, connecting column, vertical plate, locking block and torsion spring, the repair space is increased when repairing components, which facilitates repair and improves repair efficiency. It solves the problem that when the internal components of the discharge instrument are damaged and need repair, the internal circuit and component layout is compact after the front or back cover is removed, and the operating space for repair personnel is extremely narrow. This is not only time-consuming and labor-intensive, but also prone to secondary damage to other components due to improper operation, thereby reducing the repair efficiency of the discharge instrument.

[0017] Those skilled in the art will connect the electrical components and their compatible power supplies in this case using wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle below, where the electrical components are connected in the order of operation. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, without further explanation of electrical control.

[0018] Example 1, by Figure 1-4It is understood that the discharge device with overload protection structure in this case includes a housing 1. The housing 1 is equipped with a detection module 2, a control module 3, and a protection module 4. A panel 5 is fixed to the front of the housing 1. A first baffle 8 and a second baffle 9 are hinged to the two sides of the housing 1. A horizontal column 10 is fixed to the top of the first baffle 8 and the second baffle 9. A locking block 16 is inserted into the side wall of the horizontal column 10. A vertical plate 15 is fixed to the side wall of the locking block 16. A connecting column 14 is rotatably connected to the side wall of the vertical plate 15 through a pin. A turntable 13 is rotatably connected to the end of the connecting column 14 through a pin. A rotating shaft 12 is fixed to the inner wall of the turntable 13. In the specific implementation process, it is worth noting that the detection module 2 and the control module 3 can be fixed to the bottom of the inner wall of the outer casing 1 with bolts. The detection module 2 is used to detect the charge information of the device under test and transmit the detection data to the control module 3. The detection module 2 includes a current sensor, a voltage sensor, and a temperature sensor. The current sensor is a Hall current sensor, which can quickly and accurately detect the current in the discharge circuit. The voltage sensor is used to monitor the voltage of the device under test. The temperature sensor is located near the key heat-generating components inside the discharge instrument to monitor the component temperature in real time. The control module 3 is the core processing unit of the discharge instrument, receiving the detection data. The data transmitted by the measurement module is analyzed and processed according to a preset program. The control module 3 uses a high-performance microprocessor with powerful data processing and computing capabilities, displaying the working status and detection data of the discharge instrument, allowing staff to monitor its operation in real time. The panel 5 uses a color LCD screen, featuring clear display and a user-friendly interface. The protection module 4 includes overcurrent protection substructures, overvoltage protection substructures, and overheat protection substructures, which are fixed to the bottom of the inner wall of the outer casing 1 by bolts. The overcurrent protection substructure includes a fast-acting fuse and an overcurrent relay. The shunt and fast-acting fuse are connected in series in the discharge circuit. When the circuit current exceeds a set threshold, the fast-acting fuse quickly blows, cutting off the circuit and preventing damage to the equipment from excessive current. The overcurrent relay works in conjunction with the shunt. The shunt proportionally converts the large current in the main circuit into a small current signal, which is transmitted to the overcurrent relay. The overcurrent relay monitors this signal in real time. When it detects that the current exceeds the set value, it immediately triggers an action, cutting off the control circuit and thus controlling the main circuit to disconnect, achieving overcurrent protection. The overvoltage protection substructure consists of a varistor, a voltage comparator, and a relay. The varistor is connected in parallel in the discharge circuit, and its resistance changes with the voltage. When the circuit voltage is normal, the varistor has a large resistance and has minimal impact on the circuit. When the voltage exceeds the set threshold, the varistor's resistance drops rapidly, dissipating the overvoltage energy. The voltage comparator compares the input voltage with the preset voltage threshold in real time. When overvoltage is detected, the output control signal triggers the relay to cut off the circuit and protect the internal components of the discharger. The overheat protection substructure includes a temperature switch and a cooling fan control circuit. The temperature switch works with a temperature sensor. When the temperature sensor detects that the internal component temperature exceeds the set temperature, the temperature switch closes, triggering the cooling fan control circuit to start the cooling fan, accelerating air circulation and reducing the equipment temperature.If the temperature continues to rise above a higher threshold, the temperature switch will send a signal to the control module 3. The control module 3 will control the discharge device to stop working to prevent damage to components due to overheating. The discharge device will also be overload protected by the protection module 4. When it is necessary to repair the components inside the outer casing 1, the operator rotates the rotating shaft 12, which is T-shaped. The rotating shaft 12 drives the turntable 13 to rotate, the turntable 13 drives the connecting column 14 to rotate, the connecting column 14 drives the vertical plate 15 to move, and the vertical plate 15 drives the locking block 16 to move. The locking block 16 leaves the horizontal column 10, and at this time, the first baffle 8 and the second baffle 9 are fixed in contact. The operator moves the horizontal columns 10 on both sides to rotate the first baffle 8 and the second baffle 9, opening the outer casing 1. Sealing gaskets are set at the positions between the first baffle 8 and the second baffle 9 and the outer casing 1, and at the positions where the tops of the first baffle 8 and the second baffle 9 contact. The sealing rings are made of silicone rubber to improve the sealing between them, thereby increasing the repair space when repairing components, facilitating repair, and improving the repair effect. Furthermore, a cover 11 is rotatably connected above the outer wall of the rotating shaft 12. The inner wall of the cover 11 is inserted into the outer wall of the horizontal column 10. The top of the vertical plate 15 is slidably engaged with the inner top of the cover 11. A torsion spring 17 is fixed between the cover 11 and the rotating shaft 12. In the specific implementation process, it is worth noting that after the locking block 16 leaves the interior of the horizontal column 10, the staff moves the cover 11, which leaves the outer wall of the horizontal column 10. After the maintenance is completed, the staff rotates the first baffle 8 and the second baffle 9 back to their initial positions. Then, the staff rotates the rotating shaft 12, which compresses the torsion spring 17. The model of the torsion spring 17 is selected according to the actual situation, so that the locking block 16 moves closer to each other. After that, the staff inserts the cover 11 into the two horizontal columns 10. After that, the staff releases the rotating shaft 12, and the torsion spring 17 rebounds. Through the elastic force, the vertical plate 15 slides in the limiting groove at the top of the cover 11, so that the locking block 16 is reinserted into the locking groove on the inner wall of the horizontal column 10. Through the elastic force of the torsion spring 17, the locking block 16 is pressed against the interior of the horizontal column 10, and the first baffle 8 and the second baffle 9 are fixed in place, thus completing the inspection and maintenance of the internal components of the outer shell 1. Furthermore, an interface 18 is fixedly connected to the front of the outer casing 1. The interface 18 is located below the panel 5, and a plug 19 is inserted into the inner wall of the interface 18. In the specific implementation process, it is worth noting that the staff inserts one end of the test lead into the interface 18 and connects the other end of the test lead to the power equipment, thereby connecting the discharger to the power equipment. When the interface 18 is not in use, the staff inserts the plug 19 into the unused interface 18. When the interface 18 is in use, the staff removes the plug 19. The plug 19 is made of rubber, and the specific material can be selected according to the actual situation to protect the interface 18 and prevent dust from entering its interior. Furthermore, a first crossbar 20 is fixedly connected to the front of the plug 19, an elastic rope 21 is fixedly connected to the end of the first crossbar 20, a second crossbar 22 is fixedly connected to the end of the elastic rope 21, the end of the second crossbar 22 is fixedly connected to the front of the outer shell 1, and the second crossbar 22 is located below the interface 18. In the specific implementation process, it is worth noting that when the staff pulls the plug 19 out of the interface 18, the plug 19 drives the first crossbar 20 to move, and the first crossbar 20 drives the elastic rope 21 to move. The elastic rope 21 is made of high elastic rubber, and the material is selected according to the actual situation. The elastic rope 21 is connected to the second crossbar 22, so the plug 19 will be hung on the second crossbar 22 to prevent the plug 19 from being lost.

[0019] Example 2, by Figure 1 It can be seen that the bottom of the outer shell 1 is fixedly connected to a support leg 6, and the bottom of the support leg 6 is fixedly connected to a base plate 7; In the specific implementation process, it is worth noting that there are four support legs 6. The support legs 6 support the entire discharge instrument. Anti-slip texture is opened on the bottom of the base plate 7 so that the anti-slip texture is in close contact with the ground, increasing the friction and preventing the discharge instrument from sliding during use.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A discharge instrument with an overload protection structure, comprising a housing (1), characterized in that: The outer shell (1) is equipped with a detection module (2), a control module (3), and a protection module (4). A panel (5) is fixed to the front of the outer shell (1). A first baffle (8) and a second baffle (9) are hinged to the two sides of the outer shell (1). A horizontal column (10) is fixed to the top of the first baffle (8) and the second baffle (9). A locking block (16) is inserted into the side wall of the horizontal column (10). A vertical plate (15) is fixed to the side wall of the locking block (16). A connecting column (14) is rotatably connected to the side wall of the vertical plate (15) through a pin. A turntable (13) is rotatably connected to the end of the connecting column (14) through a pin. A rotating shaft (12) is fixed to the inner wall of the turntable (13).

2. A discharge instrument with an overload protection structure according to claim 1, characterized in that: A cover (11) is rotatably connected above the outer wall of the rotating shaft (12). The inner wall of the cover (11) is inserted into the outer wall of the horizontal column (10). The top of the vertical plate (15) is slidably engaged with the inner top of the cover (11). A torsion spring (17) is fixed between the cover (11) and the rotating shaft (12).

3. A discharge instrument with an overload protection structure according to claim 1, characterized in that: An interface (18) is fixedly connected to the front of the outer shell (1). The interface (18) is located below the panel (5). A plug (19) is inserted into the inner wall of the interface (18).

4. A discharge instrument with an overload protection structure according to claim 3, characterized in that: The front of the plug (19) is fixedly connected to a first crossbar (20), and the end of the first crossbar (20) is fixedly connected to an elastic rope (21). The end of the elastic rope (21) is fixedly connected to a second crossbar (22), and the end of the second crossbar (22) is fixedly connected to the front of the outer shell (1). The second crossbar (22) is located below the interface (18).

5. A discharge instrument with an overload protection structure according to claim 1, characterized in that: The bottom of the outer shell (1) is fixedly connected to a support leg (6), and the bottom of the support leg (6) is fixedly connected to a base plate (7).

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