A kind of relay protection device
By installing an automatic cleaning system with a reciprocating screw and cleaning brush at the bottom of the relay protection device, the problem of dust accumulation on the heat dissipation mesh is solved, improving the device's efficiency and heat dissipation efficiency, and extending the service life of the machine body and handle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINGNENG POWER CONSTR CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-24
AI Technical Summary
After prolonged operation, dust and impurities can easily accumulate on the surface of the heat dissipation mesh of relay protection devices, affecting heat dissipation efficiency and potentially threatening device performance. Regular shutdowns for maintenance are required, reducing operational efficiency.
A reciprocating lead screw and threaded block are installed in a fixed frame at the bottom of the device. The cleaning brush is driven by a drive component to perform automatic cleaning. Combined with rubber columns and rubber strips, the collision between the machine body and the handle is reduced, thus extending the service life.
This eliminates the need for frequent downtime maintenance, improves the device's efficiency and heat dissipation, and extends the service life of the machine body and handle.
Smart Images

Figure CN224555183U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of relay protection technology, specifically a relay protection device. Background Technology
[0002] Relay protection devices are core safety equipment in power systems. Their core function is to quickly and accurately disconnect the faulty part when a power equipment or line fails, prevent the accident from escalating, and ensure the stable operation of the power grid. They typically include relay protection instruments, which are specialized equipment used to test and verify the performance of relay devices.
[0003] The utility model patent with publication number 202220298525.8 discloses a relay protection device, including an operator. The surface of the operator is fixed with plug terminals, a display screen is fixed on the surface of the operator, buttons are installed on the surface of the operator, a wall is set on one side of the operator, and a mounting mechanism is set on one side of the wall. A cleaning mechanism is set on the surface of the operator, and a lighting mechanism is set on one side of the buttons. This not only improves the convenience of using the protection device and avoids the phenomenon of blurry display screen observation in the initial stage of protection device experiment, but also improves the practicality of the protection device.
[0004] As can be seen from the aforementioned patent, there is a relay protection device, but it still has shortcomings in actual use. The most obvious one is that in the design of the relay protection device, the heat dissipation grid is a key component to ensure its stable operation. It is generally placed at the bottom of the device to achieve the heat dissipation function. However, as the relay protection device operates continuously for a long time, dust and other impurities easily accumulate on the surface of the heat dissipation grid. These deposits not only affect the heat dissipation efficiency, but may also pose a potential threat to the performance of the device. Therefore, the staff needs to arrange shutdowns regularly to maintain the heat dissipation grid, which reduces the efficiency of the relay protection device. To address this, we propose a relay protection device. Utility Model Content
[0005] The purpose of this invention is to provide a relay protection device to solve the problems mentioned in the background art.
[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution:
[0007] Specifically, this application describes a relay protection device comprising: a body and a fixed frame fixedly connected to the bottom of the body; a handle is rotatably connected between the two side walls of the body; the handle is provided with an elastic element to reduce collision with the body; and a heat dissipation mesh is embedded in the bottom of the body.
[0008] The fixed frame has a mounting groove on one side wall. A reciprocating screw is rotatably connected to the inner cavity of the mounting groove. A threaded block is threaded to the outer side of the reciprocating screw. A movable rod is fixedly connected to the bottom of the threaded block. A cleaning brush is snapped into the top of the movable rod. A drive component for rotating the reciprocating screw is provided on the machine body. A protective component for protecting the reciprocating screw is provided on the fixed frame.
[0009] As a preferred technical solution of this application, the elastic element includes a rubber column and a rubber strip. The rubber column is fixedly connected to one side wall of the handle, and the rubber strip is fixedly connected to the top of the machine body. A limiting groove is provided on the top of the rubber strip to cooperate with the rubber column.
[0010] As a preferred technical solution of this application, the driving component includes a first gear and a second gear. An L-shaped mounting frame is fixedly connected to one side wall of the machine body. A connecting rod is rotatably connected to the lower end of the inner side wall of the L-shaped mounting frame. The connecting rod is fixedly connected to a reciprocating screw. The first gear is fixedly connected to the connecting rod. The second gear is rotatably connected to the upper end of the inner side wall of the L-shaped mounting frame. The first gear and the second gear are meshed.
[0011] As a preferred technical solution of this application, the side wall of the L-shaped mounting frame is rotatably connected to a turntable, and the turntable is fixedly connected to the second gear.
[0012] As a preferred technical solution of this application, the protective component includes a protective frame, a sliding rod is fixedly connected to the inner cavity of the protective frame, one end of the movable rod is slidably connected to the outside of the sliding rod, and a groove is provided at the bottom of the fixed frame to facilitate the sliding of the other end of the movable rod.
[0013] As a preferred technical solution of this application, a button, a display screen and a knob are fixedly connected to the side wall of the body. The display screen and the knob are located on one side of the button, and the display screen is located on the upper side of the knob.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] In the scheme of this application:
[0016] 1. By setting a fixed frame at the bottom of the machine body, a reciprocating screw is rotatably installed in the mounting groove on one side of the fixed frame. The reciprocating screw is connected to a threaded block. The set protective parts can protect the reciprocating screw. The drive part drives the reciprocating screw to rotate, and the reciprocating screw drives the threaded block to move back and forth. The threaded block drives the movable rod and the cleaning brush to move back and forth. The cleaning brush cleans the surface of the heat dissipation mesh, thereby extending the cycle of downtime maintenance required by the staff and improving the efficiency of the relay protection device.
[0017] 2. By setting a rubber strip on the top of the machine body, with a limiting groove inside the rubber strip, and a rubber post on one side of the handle, the collision between the machine body and the handle can be reduced by the rubber post working in conjunction with the rubber strip. The limiting groove positions the rubber post, thereby limiting the handle and reducing the collision between the machine body and the handle, thus extending the service life of the machine body and the handle. Attached Figure Description
[0018] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0019] In the attached diagram:
[0020] Figure 1 A perspective view of a relay protection device provided in this application;
[0021] Figure 2 A bottom view of the structure of a relay protection device provided in this application;
[0022] Figure 3 An exploded view of the fixed frame of a relay protection device provided in this application;
[0023] Figure 4 This is an exploded view of the protective casing of a relay protection device provided in this application.
[0024] In the diagram: 100, Body; 110, Handle; 111, Rubber Post; 120, Rubber Strip; 130, Button; 140, Display Screen; 150, Knob; 160, Heat Dissipation Mesh; 200, Fixing Frame; 210, Slide Rail; 220, Mounting Slot; 230, Reciprocating Screw; 231, Threaded Block; 240, Protective Frame; 241, Slide Rod; 250, Connecting Rod; 251, First Gear; 260, Movable Rod; 261, Cleaning Brush; 270, L-shaped Mounting Frame; 271, Second Gear; 272, Turntable. Detailed Implementation
[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0027] Please see Figure 1-4 A relay protection device includes: a body 100 and a fixed frame 200 fixedly connected to the bottom of the body 100; a handle 110 is rotatably connected between the two side walls of the body 100, facilitating the picking and moving of the body 100; the handle 110 is provided with an elastic element to reduce collision with the body 100; a heat dissipation mesh 160 is embedded in the bottom of the body 100 to facilitate heat dissipation; a mounting groove 220 is formed on one side wall of the fixed frame 200, which supports a reciprocating screw 230; the reciprocating screw 230 is rotatably connected to the inner cavity of the mounting groove 220, and the reciprocating screw 230 is used to drive... The threaded block 231 moves horizontally reciprocatingly. The threaded block 231 is threadedly connected to the outer side of the reciprocating screw 230. The bottom of the threaded block 231 is fixedly connected to the movable rod 260. The top of the movable rod 260 is engaged with the cleaning brush 261. The threaded block 231 is used to drive the movable rod 260 and the cleaning brush 261 to move horizontally reciprocatingly. The cleaning brush 261 cleans the heat dissipation mesh 160. A vacuum cleaner can be set at one end of the bottom of the machine body 100 to collect and store the cleaned dust. The machine body 100 is equipped with a drive component for rotating the reciprocating screw 230. The fixed frame 200 is equipped with a protective component for protecting the reciprocating screw 230.
[0028] Please see Figure 1 , Figure 2 and Figure 4 The elastic element includes a rubber column 111 and a rubber strip 120. The rubber column 111 is fixedly connected to one side wall of the handle 110, and the rubber strip 120 is fixedly connected to the top of the body 100. The top of the rubber strip 120 is provided with a limiting groove that cooperates with the rubber column 111. The handle 110 and the body 100 are protected by the rubber column 111 and the rubber strip 120.
[0029] Please see Figure 3 and Figure 4The driving components include a first gear 251 and a second gear 271. An L-shaped mounting frame 270 is fixedly connected to one side wall of the machine body 100. A connecting rod 250 is rotatably connected to the lower end of the inner side wall of the L-shaped mounting frame 270. The connecting rod 250 is fixedly connected to the reciprocating screw 230. The first gear 251 is fixedly connected to the connecting rod 250. The second gear 271 is rotatably connected to the upper end of the inner side wall of the L-shaped mounting frame 270. The first gear 251 and the second gear 271 are meshed. The second gear 271 drives the first gear 251 to rotate. The first gear 251 drives the connecting rod 250 and the reciprocating screw 230 to rotate.
[0030] Please see Figure 4 The side wall of the L-shaped mounting frame 270 is rotatably connected to a turntable 272, which is fixedly connected to the second gear 271. Specifically, the turntable 272 is rotatably connected to the L-shaped mounting frame 270 through a damping shaft.
[0031] Please see Figure 2 and Figure 3 The protective component includes a protective frame 240, with a slide rod 241 fixedly connected to the inner cavity of the protective frame 240. One end of the movable rod 260 is slidably connected to the outside of the slide rod 241. The bottom of the fixed frame 200 is provided with a groove 210 to facilitate the sliding of the other end of the movable rod 260. Through the setting of the protective frame 240 and the slide rod 241, the reciprocating screw 230 can be isolated and protected.
[0032] Please see Figure 1 and Figure 2 The side wall of the machine body 100 is fixedly connected to a button 130, a display screen 140 and a knob 150. The display screen 140 and the knob 150 are located on one side of the button 130 and the display screen 140 is located on the upper side of the knob 150. The arrangement of the button 130, the display screen 140 and the knob 150 facilitates the use of the machine body 100.
[0033] Specifically, when using this device, first connect the power supply to the relay protection device. Through the rubber column 111 and rubber strip 120, the handle 110 can protect the body 100 and the handle 110 during rotation. The rubber column 111 and handle 110 are positioned by the limiting groove on the rubber strip 120. Then, by rotating the turntable 272, the turntable 272 drives the second gear 271 to rotate. The second gear 271 drives the first gear 251 and the connecting rod 250 to rotate. The connecting rod 250 drives the reciprocating screw 230 to rotate in the mounting groove 220. The reciprocating screw 230 drives the threaded block 231 and the movable rod 260 to move horizontally back and forth. The movable rod 260 drives the cleaning brush 261 to move horizontally back and forth. The cleaning brush 261 cleans the heat dissipation mesh 160. Dust and other impurities can be collected by an external vacuum cleaner, thus completing the use of the device.
[0034] 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 process, method, article, or apparatus.
[0035] 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 relay protection device, comprising: The body (100) and the fixed frame (200) fixedly connected to the bottom of the body (100) are characterized in that a handle (110) is rotatably connected between the two side walls of the body (100), the handle (110) is provided with an elastic element to reduce collision with the body (100), and a heat dissipation mesh (160) is embedded in the bottom of the body (100). The fixed frame (200) has a mounting groove (220) on one side wall. The inner cavity of the mounting groove (220) is rotatably connected to a reciprocating screw (230). The outer side of the reciprocating screw (230) is threadedly connected to a threaded block (231). The bottom of the threaded block (231) is fixedly connected to a movable rod (260). The top of the movable rod (260) is engaged with a cleaning brush (261). The machine body (100) is provided with a drive component for rotating the reciprocating screw (230). The fixed frame (200) is provided with a protective component for protecting the reciprocating screw (230).
2. A relay protection device according to claim 1, characterized in that: The elastic element includes a rubber column (111) and a rubber strip (120). The rubber column (111) is fixedly connected to one side wall of the handle (110), and the rubber strip (120) is fixedly connected to the top of the body (100). The top of the rubber strip (120) is provided with a limiting groove that cooperates with the rubber column (111).
3. A relay protection device according to claim 1, characterized in that: The driving component includes a first gear (251) and a second gear (271). An L-shaped mounting frame (270) is fixedly connected to one side wall of the machine body (100). A connecting rod (250) is rotatably connected to the lower end of the inner side wall of the L-shaped mounting frame (270). The connecting rod (250) is fixedly connected to a reciprocating screw (230). The first gear (251) is fixedly connected to the connecting rod (250). The second gear (271) is rotatably connected to the upper end of the inner side wall of the L-shaped mounting frame (270). The first gear (251) and the second gear (271) are meshed.
4. A relay protection device according to claim 3, characterized in that: The side wall of the L-shaped mounting frame (270) is rotatably connected to a turntable (272), and the turntable (272) is fixedly connected to the second gear (271).
5. A relay protection device according to claim 1, characterized in that: The protective component includes a protective frame (240), and a sliding rod (241) is fixedly connected to the inner cavity of the protective frame (240). One end of the movable rod (260) is slidably connected to the outside of the sliding rod (241), and a groove (210) is provided at the bottom of the fixed frame (200) to facilitate the sliding of the other end of the movable rod (260).
6. A relay protection device according to claim 1, characterized in that: The side wall of the body (100) is fixedly connected to a button (130), a display screen (140) and a knob (150). The display screen (140) and the knob (150) are located on one side of the button (130), and the display screen (140) is located on the upper side of the knob (150).