Electric power system operation and maintenance fault diagnosis device

Abstract

The invention discloses a power system operation and maintenance fault diagnosis device, belongs to the technical field of power equipment fault detection, and aims to solve the problems that peripheral plastic parts are deformed and even a cable insulating layer is damaged due to the fact that heat dissipation cannot be performed on the joint of a cable socket and a plug in the prior art. Through the linkage design of plug insertion-air outlet opening, the heat dissipation problem of the connecting position of a cable socket and a plug is solved, after the cable plug is inserted into a push plate clamping groove, a push plate drives a driving cylinder to move, a first rotating ring of a sealing assembly is in linkage with a first baffle, an air outlet of a second connecting groove is opened, and heat dissipation is achieved. A cooling fan in the diagnostor generates airflow, the airflow directly blows a joint through an air outlet, heat generated by a contact resistor is directly taken away, deformation of peripheral plastic parts and damage of a cable insulating layer caused by heat accumulation are avoided, meanwhile, a first baffle tightly shields the air outlet in a non-working state, dust is prevented from entering the air outlet, the cooling efficiency is guaranteed, and the service life of the diagnostor is prolonged. And the dustproof performance of the equipment is improved.

Description

Technical Field

[0001] This invention relates to the field of power equipment fault detection technology, and more specifically, to a power system operation and maintenance fault diagnosis device. Background Technology

[0002] Power system operation and maintenance fault diagnosis involves measuring and analyzing changes in electrical quantities such as current and voltage in power equipment after a fault, as well as changes in switching quantities of protection and circuit breaker operations, to identify faulty components. A good diagnostic strategy is of great significance for shortening fault time and preventing accidents from escalating.

[0003] Chinese patent document CN217820656U discloses a power system operation and maintenance fault diagnosis device, including a diagnostic tool for power system operation and maintenance fault diagnosis operations. The surface of the display end of the diagnostic tool is provided with a line socket for connecting the diagnostic tool to an external power system, which solves the problem of easy loosening of cable sockets and cable plugs.

[0004] However, during prolonged diagnostic work, the existing cable socket and cable plug connections generate heat due to the contact resistance of the transmitted current. Without proper heat dissipation, this heat accumulates at the connection, accelerating the oxidation and aging of the metal contacts at the interface, leading to a further increase in contact resistance and creating a vicious cycle of "heating-oxidation." It also causes the plastic components around the interface to soften and deform due to prolonged high temperatures, and there is even a risk of damage to the cable insulation layer and short circuits due to overheating, which in turn affects the stable operation of the diagnostic device and the continuity of fault diagnosis work.

[0005] Therefore, in order to solve such problems, we propose a power system operation and maintenance fault diagnosis device. Summary of the Invention

[0006] The purpose of this invention is to provide a power system operation and maintenance fault diagnosis device, which aims to solve the problem in the above-mentioned background technology that the connection between the cable socket and the plug cannot be dissipated, resulting in deformation of surrounding plastic parts and even damage to the cable insulation layer.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a power system operation and maintenance fault diagnosis device, comprising a diagnostic tool: a first connecting groove is provided on the side wall of the diagnostic tool, a second connecting groove is provided on the inner wall of the first connecting groove, a heat dissipation component is provided on the inner wall of the second connecting groove, and an installation component is provided on the side wall of the diagnostic tool;

[0008] The heat dissipation assembly includes multiple mounting blocks evenly fixedly connected to the inner wall of the second mounting groove. Each mounting block has a mounting ring fixedly connected to one end, and a mounting base fixedly connected to the inner wall of one end of the mounting ring. A cable socket is located at the center of one end of the mounting base, and a cable plug is located on the side wall of the cable socket. A first rotating groove is formed at one end of the mounting base, and a third rotating ring is movably connected to the inner wall of the first rotating groove. A drive cylinder is fixedly connected to one end of the third rotating ring, and a first drive groove is formed on the inner wall of the drive cylinder. A sealing assembly is located on the outer wall of the drive cylinder, and a shielding assembly is located at one end of the drive cylinder. A push plate is located inside the drive cylinder, and a placement groove is formed at one end of the push plate. A drive block is fixedly connected to the side wall of the push plate, and the drive block is slidably connected to the inner wall of the first drive groove. A second connecting plate is movably connected to the inner wall of the placement groove via a pin. A locking assembly and a clamping assembly are located on the side wall of the second connecting plate, and a limit assembly is located inside the drive cylinder.

[0009] Preferably, the sealing assembly includes a plurality of first connecting plates uniformly and fixedly connected to the side wall of the drive cylinder. A first rotating ring is fixedly connected to one end of the first connecting plate. The first rotating ring is slidably connected to the inner wall of the first connecting groove. A second driving groove is opened on the side wall of the first rotating ring. A driving column is slidably connected to the inner wall of the second driving groove. A first baffle is movably connected to one end of the driving column.

[0010] Preferably, the locking assembly includes a first mounting groove formed on the side wall of the second connecting plate near the placement groove, a first push block is movably connected to the inner wall of the first mounting groove, a threaded post is movably connected to the side wall of the first push block, the lower end of the threaded post penetrates the side wall of the second connecting plate, the inclined side wall of the first push block abuts against the second push block, a second mounting plate is fixedly connected to one end of the second push block, and a first rubber block is fixedly connected to the side wall of the second mounting plate.

[0011] Preferably, the clamping assembly includes a clamping seat fixedly connected to the side wall of the second connecting plate away from the placement groove. A third spring is fixedly connected to the bottom wall of the clamping seat. A connecting block is fixedly connected to one end of the third spring. A second rubber block is fixedly connected to the end of the connecting block away from the third spring. The end of the second rubber block away from the connecting block is provided with an arc surface.

[0012] Preferably, the shielding assembly includes a second rotating groove formed at the end of the drive cylinder away from the push plate, a second rotating ring movably connected to the inner wall of the second rotating groove, a connecting ring fixedly connected to one end of the second rotating ring, and two second baffles symmetrically fixedly connected to the inner wall of the connecting ring.

[0013] Preferably, the limiting component includes a limiting post fixedly connected to one end of the mounting base near the drive cylinder, a first spring sleeved on the side wall of the limiting post, a limiting plate fixedly connected to one end of the limiting post, and the two ends of the first spring fixedly connected to the mounting base and the limiting plate, respectively.

[0014] Preferably, the mounting assembly includes a third mounting plate fixedly connected to the side wall of the diagnostic tool. The side wall of the third mounting plate is provided with a plurality of third connecting grooves. The inner wall of the third connecting groove is provided with a sliding groove, and a slider is slidably connected to the inner wall of the sliding groove.

[0015] Preferably, the inner sidewall of the placement slot is provided with an adjustment groove, and the middle part of the push plate away from the mounting base is provided with a locking groove.

[0016] Preferably, a third mounting groove is provided on the side wall of the second connecting plate away from the push plate, and a ball is movably connected to the inner wall of the third mounting groove. A second mounting groove is provided on the two non-adjacent inner side walls of the first mounting groove. Limiting blocks are fixedly connected to the two non-adjacent side walls of the second push block. The limiting blocks are slidably connected to the inner wall of the second mounting groove. A second spring is fixedly connected to the lower end of the limiting block. The end of the second spring away from the limiting block is fixedly connected to the inner wall of the second mounting groove.

[0017] Preferably, a first mounting plate is fixedly connected to the inner wall of the diagnostic tool, a display screen is provided at the upper end of the first mounting plate, and a cooling fan is provided at the upper edge of the first mounting plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. The power system operation and maintenance fault diagnosis device proposed in this invention effectively solves the heat dissipation problem at the connection between the cable socket and the plug through the linkage design of "plug insertion - air outlet opening". When the cable plug is inserted into the push plate slot, the push plate drives the drive cylinder to move. Through the linkage between the first rotating ring of the sealing component and the first baffle, the air outlet of the second connection slot is opened. The cooling fan in the diagnostic device generates airflow, which blows directly to the connection through the air outlet, directly removing the heat generated by the contact resistance. This avoids heat accumulation that could cause deformation of surrounding plastic parts and damage to the cable insulation layer. At the same time, when not in operation, the first baffle tightly blocks the air outlet to prevent dust from entering. This not only ensures heat dissipation efficiency but also improves the dustproof performance of the equipment and extends the overall service life of the device.

[0020] 2. The power system operation and maintenance fault diagnosis device proposed in this invention further improves the stability and reliability of cable connections through multiple fixing and limiting structures. The threaded drive structure of the locking component, together with the first rubber block, achieves flexible clamping of the plug, avoiding hard contact wear. The spring of the clamping component, combined with the second rubber block, forms an elastic fixation of the cable body, preventing external forces from dragging and pulling the interface directly. The second baffle of the shielding component and the first spring of the limiting component work together to ensure tight contact between the plug and the socket through physical limiting and elastic back push, avoiding loosening caused by equipment vibration or collision, and improving the continuity and stability of fault diagnosis operations. Attached Figure Description

[0021] Figure 1 This is a three-dimensional illustration of the present invention. Figure 1 ;

[0022] Figure 2 This is a three-dimensional illustration of the present invention. Figure 2 ;

[0023] Figure 3 This is a three-dimensional schematic diagram of the heat dissipation component in this invention;

[0024] Figure 4 This is a three-dimensional exploded view of the sealing assembly in this invention;

[0025] Figure 5 This is a three-dimensional exploded view of the clamping assembly in this invention;

[0026] Figure 6 This is a three-dimensional exploded view of the locking component in this invention;

[0027] Figure 7 This is a three-dimensional exploded view of the limiting component in this invention;

[0028] Figure 8 This is a three-dimensional exploded view of the shielding component in this invention;

[0029] Figure 9 This is a side view of the diagnostic device in this invention;

[0030] Figure 10 This is a three-dimensional structural diagram of the third mounting plate in this invention.

[0031] Legend:

[0032] 1. Diagnostic device; 101. First connecting slot; 102. Second connecting slot; 11. First mounting plate; 12. Display screen; 13. Cooling fan; 2. Heat dissipation assembly; 21. Mounting block; 22. Mounting ring; 23. Mounting base; 231. First rotating slot; 24. Cable socket; 241. Cable plug; 25. Third rotating ring; 26. Drive cylinder; 260. First drive slot; 261. Sealing assembly; 2611. First connecting plate; 2612. First rotating ring; 2613. Second drive slot; 2614. Drive column; 2615. First baffle; 262. Shielding assembly; 2621. Second rotating slot; 2622. Second rotating ring; 2623. Connecting ring; 2624. Second baffle; 27. Push plate; 271. Placement slot; 272. Adjustment 273, Slot; 274, Drive block; 28, Second connecting plate; 281, Locking assembly; 2811, First mounting slot; 2812, First push block; 2813, Threaded post; 2814, Second push block; 2815, Second mounting plate; 2816, First rubber block; 2817, Second mounting slot; 2818, Limiting block; 2819, Second spring; 282, Clamping assembly; 2821, Clamping seat; 2822, Third spring; 2823, Connecting block; 2824, Second rubber block; 283, Third mounting slot; 2831, Ball bearing; 29, Limiting assembly; 291, Limiting post; 292, First spring; 293, Limiting plate; 3, Mounting assembly; 31, Third mounting plate; 32, Third connecting slot; 33, Slide groove; 34, Slider. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] To address the current issue of insufficient heat dissipation at the connection between the cable socket 24 and the cable plug 241, which leads to deformation of surrounding plastic components and even damage to the cable insulation, please refer to [the relevant documentation]. Figure 1 - Figure 8 The following preferred technical solutions are provided.

[0035] An embodiment of the present invention provides a power system operation and maintenance fault diagnosis device, including a diagnostic device 1: a first connecting groove 101 is provided on the side wall of the diagnostic device 1, a second connecting groove 102 is provided on the inner wall of the first connecting groove 101, a heat dissipation component 2 is provided on the inner wall of the second connecting groove 102, and an installation component 3 is provided on the side wall of the diagnostic device 1.

[0036] The heat dissipation assembly 2 includes multiple mounting blocks 21 uniformly and fixedly connected to the inner wall of the second connecting groove 102. A mounting ring 22 is fixedly connected to one end of each mounting block 21. A mounting base 23 is fixedly connected to the inner wall of one end of the mounting ring 22. A cable socket 24 is located at the center of one end of the mounting base 23. A cable plug 241 is located on the side wall of the cable socket 24. A first rotating groove 231 is formed at one end of the mounting base 23. A third rotating ring 25 is movably connected to the inner wall of the first rotating groove 231. A drive cylinder 26 is fixedly connected to one end of the third rotating ring 25. A second rotating ring 25 is formed on the inner wall of the drive cylinder 26. A drive groove 260 is provided. A sealing component 261 is provided on the outer wall of the drive cylinder 26. A blocking component 262 is provided at one end of the drive cylinder 26. A push plate 27 is provided inside the drive cylinder 26. A placement groove 271 is opened at one end of the push plate 27. A drive block 274 is fixedly connected to the side wall of the push plate 27. The drive block 274 is slidably connected to the inner wall of the first drive groove 260. A second connecting plate 28 is movably connected to the inner wall of the placement groove 271 through a pin. A locking component 281 and a clamping component 282 are provided on the side wall of the second connecting plate 28. A limit component 29 is provided inside the drive cylinder 26.

[0037] Specifically, the first connecting groove 101 and the second connecting groove 102 are used to install the sealing component 261 and the heat dissipation component 2, respectively. The cable plug 241 to be connected is precisely embedded into the pre-set slot 273 in the middle of one end of the push plate 27, initially restricting the lateral displacement of the plug. Then, the second connecting plate 28 is rotated with the pin on the push plate 27 as the fulcrum, so that the locking component 281 and the clamping component 282 on the side wall of the second connecting plate 28 correspond to the cable plug 241 and the cable body, respectively. The locking component 281 achieves flexible clamping of the cable plug 241 through the rubber block and the threaded drive structure, avoiding hard contact that could cause wear to the plug. Secondly, the clamping component 282 uses the spring force to drive the rubber block to press tightly against the cable surface, forming a stable fixation of the cable, preventing the connection between the plug and the socket from being directly pulled when dragged by external force. After the fixation is completed, The second connecting plate 28 is pushed along the axis of the drive cylinder 26, which drives the push plate 27 and the cable plug 241 to move towards the cable socket 24 until the cable plug 241 is fully inserted into the cable socket 24, thus achieving circuit conduction. During this process, the push plate 27 drives the sealing component 261 through the drive cylinder 26, gradually releasing the seal on the second connecting groove 102. Since the second connecting groove 102 serves as a heat dissipation outlet, its position corresponds to the connection between the cable socket 24 and the cable plug 241. At this time, the airflow generated by the internal cooling fan 13 of the diagnostic device 1 can be directly blown to the connection through the second connecting groove 102, thus promptly removing the heat generated by the contact resistance. This linkage design of "plug insertion - outlet opening" not only ensures the sealing and dust prevention of the outlet in the non-working state, but also achieves directional and efficient heat dissipation in the working state.

[0038] The sealing assembly 261 includes a plurality of first connecting plates 2611 uniformly and fixedly connected to the side wall of the drive cylinder 26. A first rotating ring 2612 is fixedly connected to one end of the first connecting plate 2611. The first rotating ring 2612 is slidably connected to the inner wall of the first connecting groove 101. A second drive groove 2613 is opened on the side wall of the first rotating ring 2612. A drive column 2614 is slidably connected to the inner wall of the second drive groove 2613. A first baffle 2615 is movably connected to one end of the drive column 2614.

[0039] When the first baffle 2615 blocks the second connecting groove 102, the line connecting two non-adjacent first connecting plates 2611 and the line connecting two non-adjacent mounting blocks 21 are set at an angle, so that when the first baffle 2615 releases the block covering the second connecting groove 102, the first connecting plates 2611 are all located at the ends of the mounting blocks 21.

[0040] Specifically, when the cable plug 241 moves closer to the cable socket 24 under the action of the push plate 27, the drive block 274 on the side wall of the push plate 27 slides along the first drive groove 260 on the inner wall of the drive cylinder 26, thereby driving the drive cylinder 26 to rotate. The drive cylinder 26 drives the first rotating ring 2612 to rotate on the inner wall of the first connecting groove 101 through the first connecting plate 2611. Since the second drive groove 2613 on the side wall of the first rotating ring 2612 is movably connected to the drive column 2614, and one end of the drive column 2614 is movably connected to the first baffle 2615, and the first baffle 2615 is slidably connected to the sliding groove 33 of the third mounting plate 31 through the slider 34, the movement of the first rotating ring 2612 will drive the first baffle 2615 to slide directionally along the sliding groove 33 through the drive column 2614. As the drive cylinder 26 continues to rotate, the first baffle 2615, which originally covered the outside of the second connecting groove 102, gradually moves away from the second connecting groove 102, thereby removing the obstruction of the air outlet.

[0041] The locking assembly 281 includes a first mounting groove 2811 formed on the side wall of the second connecting plate 28 near the placement groove 271. A first push block 2812 is movably connected to the inner wall of the first mounting groove 2811. A threaded post 2813 is movably connected to the side wall of the first push block 2812. The lower end of the threaded post 2813 passes through the side wall of the second connecting plate 28. The inclined side wall of the first push block 2812 abuts against a second push block 2814. A second mounting plate 2815 is fixedly connected to one end of the second push block 2814. A first rubber block 2816 is fixedly connected to the side wall of the second mounting plate 2815.

[0042] Specifically, after the cable plug 241 is inserted into the slot 273 of the push plate 27, the second connecting plate 28 is rotated to fit against the side wall of the plug. At this time, the first push block 2812 and the second push block 2814 in the first mounting groove 2811 are in a ready-to-drive state. The operator can push the first push block 2812 along the inner wall of the first mounting groove 2811 by rotating the threaded post 2813 that passes through the second connecting plate 28. Since the side wall of the first push block 2812 is inclined, it will generate a lateral thrust on the second push block 2814 during its movement, causing the second push block 2814 to drive the second mounting plate 2815 closer to the cable plug 241. Finally, the first rubber block 2816 on the side wall of the second mounting plate 2815 will tightly press the surface of the cable plug 241. By utilizing the flexible contact characteristics of the rubber material, it can avoid wear on the plug caused by hard clamping and limit the axial and radial displacement of the plug through friction, thus achieving reliable positioning.

[0043] In addition, the clamping force can be precisely controlled by the rotation amplitude of the threaded column 2813: if the clamping force needs to be increased, the threaded column 2813 can be rotated clockwise to further press the second pusher 2814, thereby increasing the pressure of the first rubber block 2816; if the plug needs to be disassembled or adjusted, the threaded column 2813 can be rotated counterclockwise to move the first pusher 2812 in the opposite direction, and the second pusher 2814 will be reset under the elastic force of the second spring 2819, thereby reducing the clamping force. This ensures the stability of the connection between the cable plug 241 and the cable socket 24, and also provides flexible adjustment space for the adaptation of different plug specifications.

[0044] The clamping assembly 282 includes a clamping seat 2821 fixedly connected to the side wall of the second connecting plate 28 away from the placement groove 271. A third spring 2822 is fixedly connected to the inner bottom wall of the clamping seat 2821. A connecting block 2823 is fixedly connected to one end of the third spring 2822. A second rubber block 2824 is fixedly connected to the end of the connecting block 2823 away from the third spring 2822. The end of the second rubber block 2824 away from the connecting block 2823 is provided with an arc surface.

[0045] Specifically, rotating the second connecting plate 28 moves the end of the second connecting plate 28 away from the placement groove 271 to the position of the cable body. At this time, the third spring 2822 in the clamping seat 2821 is in a natural extension and contraction state. The connecting block 2823 drives the second rubber block 2824 to initially contact the cable surface. Then, the second connecting plate 28 continues to rotate, and the connecting block 2823 applies a continuous clamping force to the second rubber block 2824, making the second rubber block 2824 tightly fit against the cable surface. This flexible clamping method can avoid damage to the cable sheath and also utilize the friction of the rubber material. The friction restricts the axial movement of the cable, effectively fixing it. By clamping the cable body, it forms a double fixation of "plug-cable" with the locking component 281, further enhancing the stability of the connection between the cable plug 241 and the cable socket 24. Secondly, when the cable is subjected to an unexpected external drag force, the friction between the second rubber block 2824 and the cable will first bear part of the tension, preventing the tension from being directly transmitted to the connection between the cable plug 241 and the cable socket 24. This reduces problems such as poor contact and wear of metal contacts due to excessive force, extending the service life of the equipment.

[0046] The shielding assembly 262 includes a second rotating groove 2621 opened at the end of the drive cylinder 26 away from the push plate 27. A second rotating ring 2622 is movably connected to the inner wall of the second rotating groove 2621. A connecting ring 2623 is fixedly connected to one end of the second rotating ring 2622. Two second baffles 2624 are symmetrically fixedly connected to the inner wall of the connecting ring 2623.

[0047] Specifically, the connecting ring 2623 is movably connected to the second rotating groove 2621 of the drive cylinder 26 via the second rotating ring 2622, and can rotate freely around the axis of the drive cylinder 26. By rotating the connecting ring 2623, the operator drives the two second baffles 2624, which are symmetrically fixed on its inner wall, to rotate synchronously until the spacing between the two second baffles 2624 is parallel to the line connecting the two second connecting plates 28 inside the drive cylinder 26. At this time, the second baffles 2624 will not obstruct the movement of the second connecting plates 28, leaving enough space for the second connecting plates 28 to drive the cable plug 241 to move towards the cable socket 24, ensuring that the cable plug 241 can be smoothly inserted into the cable socket 24 to complete the connection. After the cable plug 241 and cable socket 24 are stably connected, rotate the connecting ring 2623 again: the second rotating ring 2622 rotates smoothly along the second rotating groove 2621, driving the two second baffles 2624 to gradually rotate from the state of "parallel to the line connecting the second connecting plate 28" to the state of "perpendicular to the line connecting the second connecting plate 28", so that they can directly abut against the end of the second connecting plate 28, forming a physical limit, effectively restricting the tendency of the second connecting plate 28 to slide out of the drive cylinder 26, preventing the second connecting plate 28 from detaching from the drive cylinder 26 due to external factors such as equipment shaking and cable stress, thereby avoiding loosening of the connection between the cable plug 241 and the cable socket 24, and ensuring the stability of the circuit connection during fault diagnosis.

[0048] The limiting assembly 29 includes a limiting post 291 fixedly connected to one end of the mounting base 23 near the drive cylinder 26. A first spring 292 is sleeved on the side wall of the limiting post 291. A limiting plate 293 is fixedly connected to one end of the limiting post 291. The two ends of the first spring 292 are fixedly connected to the mounting base 23 and the limiting plate 293, respectively.

[0049] Specifically, one end of the limiting post 291 is fixedly connected to the end of the mounting base 23 near the drive cylinder 26, and its axis is parallel to the movement direction of the push plate 27. When the push plate 27 moves axially inside the drive cylinder 26, the limiting post 291 forms a rigid guide structure for the push plate 27, which can effectively limit the lateral displacement or rotation of the push plate 27 during movement, and prevent the drive block 274 from jamming with the first drive groove 260 due to the tilt of the push plate 27. This improves the stability of the linear movement of the push plate 27 and provides a basis for the precise docking of the cable plug 241 and the cable socket 24. At the same time, the first spring 292 sleeved on the side wall of the limiting post 291 plays a key role in elastic compression. The two ends of the first spring 292 are respectively connected to the mounting base 23 and the drive cylinder 26. The limiting plate 293 is fixedly connected. When the push plate 27 moves toward the mounting base 23, the first spring 292 is compressed and stores elastic potential energy. After the cable plug 241 and the cable socket 24 are connected and the second baffle 2624 of the blocking component 262 rotates to the limiting position, the elastic potential energy of the first spring 292 will be converted into a reaction force on the push plate 27. Finally, the end of the second connecting plate 28 away from the push plate 27 is tightly abutted against the inner wall of the second baffle 2624. Finally, through the synergistic effect of the limiting component 29 and the blocking component 262, the stability of the movement of the push plate 27 is ensured, and the indirect locking of the second baffle 2624 is achieved, further consolidating the reliability of the connection between the cable plug 241 and the cable socket 24.

[0050] Mounting assembly 3 includes a third mounting plate 31 fixedly connected to the side wall of diagnostic tool 1. The side wall of the third mounting plate 31 is evenly provided with a plurality of third connecting grooves 32. The inner wall of the third connecting groove 32 is provided with a sliding groove 33. A slider 34 is slidably connected to the inner wall of the sliding groove 33. The slider 34 is fixedly connected to the first baffle 2615.

[0051] Specifically, because the slider 34 is limited by the slide groove 33, the first baffle 2615 can only slide smoothly along the track of the slide groove 33. In the non-working state, the first baffle 2615 completely covers the second connecting groove 102 in the initial position. With the limiting effect of the third connecting groove 32 and the slide groove 33, the baffle is prevented from shifting due to equipment shaking, thus reliably blocking the air outlet and preventing dust, water vapor and other impurities from entering the inside of the diagnostic tool 1. When heat dissipation is required, as the drive cylinder 26 moves, the first baffle 2615 gradually moves away from the second connecting groove 102 along the slide groove 33. The tight cooperation between the slider 34 and the slide groove 33 ensures that the baffle will not jam or shift, so that the air outlet can open evenly and stably, ensuring that the heat dissipation airflow passes smoothly.

[0052] Furthermore, in order to increase the operational stability of the device, such as Figure 1 - Figure 10 As shown, the following preferred technical solutions are provided.

[0053] An adjustment groove 272 is provided on the inner side wall of the placement groove 271, and a slot 273 is provided in the middle of the end of the push plate 27 away from the mounting base 23. The adjustment groove 272 is used to increase the opening and closing angle between the two second connecting plates 28, and the slot 273 is used to initially limit the cable plug 241.

[0054] The second connecting plate 28 has a third mounting groove 283 on the side wall away from the push plate 27. A ball bearing 2831 is movably connected to the inner wall of the third mounting groove 283. The two non-adjacent inner side walls of the first mounting groove 2811 have a second mounting groove 2817. The two non-adjacent side walls of the second push block 2814 are respectively fixedly connected to limit blocks 2818. The limit blocks 2818 are slidably connected to the inner wall of the second mounting groove 2817. The lower end of the limit block 2818 is fixedly connected to a second spring 2819. The end of the second spring 2819 away from the limit block 2818 is fixedly connected to the inner wall of the second mounting groove 2817. When the second connecting plate 28 extends into the drive cylinder 26, the ball bearing 2831 is connected to the inner wall of the drive cylinder 26 to reduce friction. At the same time, the ball bearing 2831 can also push the second rubber block 2824 to further clamp the cable to a certain extent.

[0055] A first mounting plate 11 is fixedly connected to the inner wall of the diagnostic instrument 1. A display screen 12 is provided on the upper end of the first mounting plate 11, and a cooling fan 13 is provided at the upper edge of the first mounting plate 11.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0057] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A power system operation and maintenance fault diagnosis device, comprising a diagnostic tool (1), characterized in that: The diagnostic tool (1) has a first connecting groove (101) on its side wall, a second connecting groove (102) on its inner wall, a heat dissipation assembly (2) on its inner wall, and an installation assembly (3) on its side wall. The heat dissipation assembly (2) includes a plurality of mounting blocks (21) uniformly fixedly connected to the inner wall of the second connecting groove (102). One end of each mounting block (21) is fixedly connected to a mounting ring (22), and the inner wall of one end of the mounting ring (22) is fixedly connected to a mounting base (23). A cable socket (24) is provided at the center of one end of the mounting base (23), and a cable plug (241) is provided on the side wall of the cable socket (24). One end of the mounting base (23) is provided with a first rotating groove (231), and a third rotating ring (25) is movably connected to the inner wall of the first rotating groove (231). One end of the third rotating ring (25) is fixedly connected to a drive cylinder (26), and the inner wall of the drive cylinder (26) is provided with a first driving... The drive cylinder (26) has a moving groove (260), a sealing component (261) is provided on the outer wall of the drive cylinder (26), a shielding component (262) is provided at one end of the drive cylinder (26), a push plate (27) is provided inside the drive cylinder (26), a placement groove (271) is provided at one end of the push plate (27), a drive block (274) is fixedly connected to the side wall of the push plate (27), the drive block (274) is slidably connected to the inner wall of the first drive groove (260), a second connecting plate (28) is movably connected to the inner wall of the placement groove (271) by a pin, a locking component (281) and a clamping component (282) are provided on the side wall of the second connecting plate (28), and a limit component (29) is provided inside the drive cylinder (26).

2. The power system operation and maintenance fault diagnosis device according to claim 1, characterized in that: The sealing assembly (261) includes a plurality of first connecting plates (2611) uniformly fixedly connected to the side wall of the drive cylinder (26). A first rotating ring (2612) is fixedly connected to one end of the first connecting plate (2611). The first rotating ring (2612) is slidably connected to the inner wall of the first connecting groove (101). A second drive groove (2613) is opened on the side wall of the first rotating ring (2612). A drive column (2614) is slidably connected to the inner wall of the second drive groove (2613). A first baffle (2615) is movably connected to one end of the drive column (2614).

3. The power system operation and maintenance fault diagnosis device according to claim 1, characterized in that: The locking assembly (281) includes a first mounting groove (2811) formed on the side wall of the second connecting plate (28) near the placement groove (271). A first push block (2812) is movably connected to the inner wall of the first mounting groove (2811). A threaded post (2813) is movably connected to the side wall of the first push block (2812). The lower end of the threaded post (2813) penetrates the side wall of the second connecting plate (28). The inclined side wall of the first push block (2812) abuts against a second push block (2814). A second mounting plate (2815) is fixedly connected to one end of the second push block (2814). A first rubber block (2816) is fixedly connected to the side wall of the second mounting plate (2815).

4. The power system operation and maintenance fault diagnosis device according to claim 1, characterized in that: The clamping assembly (282) includes a clamping seat (2821) fixedly connected to the side wall of the second connecting plate (28) away from the placement groove (271). A third spring (2822) is fixedly connected to the bottom wall of the clamping seat (2821). A connecting block (2823) is fixedly connected to one end of the third spring (2822). A second rubber block (2824) is fixedly connected to the end of the connecting block (2823) away from the third spring (2822). The end of the second rubber block (2824) away from the connecting block (2823) is provided with an arc surface.

5. The power system operation and maintenance fault diagnosis device according to claim 1, characterized in that: The shielding assembly (262) includes a second rotating groove (2621) opened at the end of the drive cylinder (26) away from the push plate (27). A second rotating ring (2622) is movably connected to the inner wall of the second rotating groove (2621). A connecting ring (2623) is fixedly connected to one end of the second rotating ring (2622). Two second baffles (2624) are symmetrically fixedly connected to the inner wall of the connecting ring (2623).

6. The power system operation and maintenance fault diagnosis device according to claim 1, characterized in that: The limiting component (29) includes a limiting post (291) fixedly connected to one end of the mounting base (23) near the drive cylinder (26). A first spring (292) is sleeved on the side wall of the limiting post (291). A limiting plate (293) is fixedly connected to one end of the limiting post (291). The two ends of the first spring (292) are fixedly connected to the mounting base (23) and the limiting plate (293) respectively.

7. A power system operation and maintenance fault diagnosis device according to claim 1, characterized in that: The mounting assembly (3) includes a third mounting plate (31) fixedly connected to the side wall of the diagnostic tool (1). The side wall of the third mounting plate (31) is evenly provided with a plurality of third connecting grooves (32). The inner wall of the third connecting groove (32) is provided with a sliding groove (33). The inner wall of the sliding groove (33) is slidably connected with a slider (34).

8. The power system operation and maintenance fault diagnosis device according to claim 1, characterized in that: An adjustment groove (272) is provided on the inner side wall of the placement groove (271), and a slot (273) is provided in the middle of the end of the push plate (27) away from the mounting base (23).

9. A power system operation and maintenance fault diagnosis device according to claim 3, characterized in that: The second connecting plate (28) has a third mounting groove (283) on the side wall away from the push plate (27). A ball bearing (2831) is movably connected to the inner wall of the third mounting groove (283). The first mounting groove (2811) has a second mounting groove (2817) on two non-adjacent inner side walls. The second push block (2814) has a limit block (2818) fixedly connected to two non-adjacent side walls. The limit block (2818) is slidably connected to the inner wall of the second mounting groove (2817). A second spring (2819) is fixedly connected to the lower end of the limit block (2818). The end of the second spring (2819) away from the limit block (2818) is fixedly connected to the inner wall of the second mounting groove (2817).

10. A power system operation and maintenance fault diagnosis device according to claim 1, characterized in that: The diagnostic tool (1) has a first mounting plate (11) fixedly connected to its inner wall. The first mounting plate (11) has a display screen (12) at its upper end and a cooling fan (13) at its upper edge.

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