A quick plug-in wiring terminal structure for a power plant relay protection device
Patent Information
- Application Number
- CN202521934362.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-09
- Publication Date
- 2026-08-18
- Estimated Expiration
- 2035-09-09
AI Technical Summary
[0003]为了弥补以上不足，本实用新型提供了一种火电厂继电保护装置用快速插拔式接线端子结构，旨在改善现有技术中传统接线操作中将接线安装在接线端子的过程操作复杂的问题
1、本实用新型中，当需要对该装置进行接线操作时，通过将接线直接插入接线口之中，同时通过按下夹板，使夹板绕转杆转动，并带动弹簧收缩，同时使定位柱插入连接槽内，此时通过夹板的旋转升起带动固定架上升，此时将接线放置在固定架和接线电极之间，释放夹板，同时弹簧释放，使得固定架下压将接线固定在固定架和接线电极之间，若需要将接线再次取下，则可以再次按下夹板带动固定架上升，即可取下接线，通过上述装置实现了在接线时可以快速进行接线安装操作，无需安装工具，大幅减少了安装操作流程，大幅减少了安装时间。
Smart Images
Figure CN224652750U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power system protection and control technology, and in particular to a quick-plug terminal block structure for a relay protection device in a thermal power plant. Background Technology
[0002] The wiring terminals of relay protection devices in thermal power plants are key metal interface components connecting the device to external secondary circuits. They are mostly made of copper alloy and can fix wires, conduct electrical signals, standardize cable connections, and facilitate maintenance and disassembly. They can also prevent signal interference and poor contact, ensure that the device accurately receives equipment data, and promptly triggers protection actions such as tripping alarms. They are an important basic component for the safe and stable operation of the secondary system. The wiring terminals of the relay protection device in thermal power plants are structurally composed of copper alloy conductive parts for conducting electrical signals, an insulating shell for isolating live parts and preventing short circuits, and screws or spring fastening parts for fixing wires. Some of them include anti-loosening / anti-misinsertion and terminal separation design. During operation, by connecting and fixing external secondary circuit cables, the conductive parts conduct signals to the device, and then the device control commands are transmitted to external actuators to achieve reliable signal transmission and ensure the effectiveness of protection functions. In the existing technology, the wiring of current thermal power plant relay protection devices usually requires manual operation with special tools to perform wiring operations many times. Each operation takes a long time and is not easy to disassemble. To solve the above problems, a quick-plug terminal structure for thermal power plant relay protection devices is proposed. Utility Model Content
[0003] To overcome the above shortcomings, this utility model provides a quick-plug terminal block structure for relay protection devices in thermal power plants, aiming to improve the problem of complicated operation in the traditional wiring process of installing wiring in the terminal block.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: A quick-plug terminal block structure for a relay protection device in a thermal power plant includes a mounting frame, a connector detachably connected to the outer wall of the mounting frame, a wiring port opened on the inner wall of the connector, a quick-release mechanism installed on the top of the connector, and a fixing mechanism installed on the top of the connector. The quick-release mechanism includes a rotating rod, the outer wall of which is fixedly connected to the inner wall of the connector, a clamping plate fixedly connected to the outer wall of the rotating rod, a fixing frame fixedly connected to the bottom of the clamping plate, a wiring electrode fixedly connected to the inner wall of the connector, a wire fixedly connected to the inner wall of the connector, a wiring hole fixedly connected to the outer wall of the connector, and a reset component fixedly connected to the bottom of the clamping plate. As a further description of the above technical solution: The reset assembly includes limit rings, one of which is fixedly connected at the bottom to the top of the connector, and the other is fixedly connected at the top to the bottom of the clamping plate. A positioning post is fixedly connected to the top of the connector, and a spring is sleeved on the outer wall of the positioning post. A connecting groove is provided on the outer wall of the clamping plate. As a further description of the above technical solution: The fixing mechanism includes a slide, the outer walls of the two slides are slidably connected to the inner wall of the connector, a fixing component is fixedly connected to the adjacent side of the two slides, the top of the fixing component is fixedly connected to an anti-slip texture, and two grooves are opened on the inner wall of the connector. As a further description of the above technical solution: The fixing component includes a fixing plate, the outer wall of which is fixedly connected to the outer walls of the two carriages, a plurality of locking balls are fixedly connected to the bottom of the fixing plate, and a plurality of locking slots are provided on the top of the clamping plate; As a further description of the above technical solution: One end of the wire is fixedly connected to the bottom of the wiring electrode, and the other end of the wire is fixedly connected to the outer wall of the wiring hole. As a further description of the above technical solution: One end of the spring is fixedly connected to the top of the connector, and the other end of the spring is fixedly connected to the bottom of the clamp. As a further description of the above technical solution: The outer wall of the fixing frame is slidably connected to the inner wall of the connector, and the outer wall of the positioning post is detachably connected to the inner wall of the connecting groove. As a further description of the above technical solution: The outer wall of the carriage is slidably connected to the inner wall of the slide groove, and the top of the fixing plate is detachably connected to the top of the clamping plate.
[0005] This utility model has the following beneficial effects: 1. In this utility model, when wiring is required, the wire is directly inserted into the wiring port. Simultaneously, pressing down the clamp causes it to rotate around the rotating rod, causing the spring to contract and the positioning pin to insert into the connecting slot. The rotation of the clamp then raises the fixing frame, placing the wire between the fixing frame and the wiring electrode. Releasing the clamp and spring causes the fixing frame to press down, securing the wire between the fixing frame and the wiring electrode. To remove the wire, the clamp is pressed down again, raising the fixing frame to remove it. This device allows for quick wiring installation without tools, significantly reducing installation steps and time.
[0006] 2. In this utility model, after the wiring is installed, the fixing plate is moved by pushing it. The fixing plate slides in the sliding grooves on both sides of the sliding brackets on both sides, and finally the fixing plate slides onto the clamp. The fixing plate is fixed on the clamp by the engagement of multiple locking balls at the bottom of the fixing plate with the locking grooves on the clamp. Finally, the clamp is fixed on the terminal block, which further strengthens the connection strength and prevents the wiring from falling off due to workers accidentally touching the clamp. Attached Figure Description
[0007] Figure 1 This is a three-dimensional schematic diagram of a quick-plug terminal block structure for a relay protection device in a thermal power plant, as proposed in this utility model. Figure 2 This utility model provides a schematic diagram of the sliding groove for a quick-plug type terminal block structure for a relay protection device in a thermal power plant. Figure 3 This is a schematic diagram of the rotating rod of a quick-plug type terminal block structure for a relay protection device in a thermal power plant, as proposed in this utility model. Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the wire structure of a quick-plug type terminal block for a relay protection device in a thermal power plant, as proposed in this utility model. Figure 6 for Figure 5 Enlarged view of point B in the middle.
[0008] Legend: 1. Mounting bracket; 2. Connector; 3. Connection port; 4. Quick-release mechanism; 41. Clamping plate; 42. Rotating rod; 43. Fixing bracket; 44. Wiring electrode; 45. Wire; 46. Wiring hole; 47. Reset assembly; 471. Limit ring; 472. Positioning post; 473. Spring; 474. Connecting groove; 5. Fixing mechanism; 51. Fixing assembly; 511. Fixing plate; 512. Clamping ball; 513. Clamping groove; 52. Anti-slip texture; 53. Slide; 54. Slide groove. Detailed Implementation
[0009] 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.
[0010] Reference Figure 1 , Figure 5 andFigure 6 The present invention provides an embodiment of a quick-plug terminal block structure for a relay protection device in a thermal power plant, comprising a mounting bracket 1, which can fix the terminal structure in a designated position to ensure overall stability. The outer wall of the mounting bracket 1 is detachably connected to a connector 2. This design facilitates the maintenance and replacement of the connector 2 and reduces costs. The inner wall of the connector 2 is provided with a wiring port 3, which allows external wiring to be accurately inserted into the internal structure. The top of the connector 2 is equipped with a quick-release mechanism 4, which can quickly disassemble and assemble wiring without tools to improve efficiency. The top of the connector 2 is equipped with a fixing mechanism 5, which can lock the quick-release mechanism 4 to prevent accidental contact and detachment and enhance connection strength. The quick-release mechanism 4 includes a rotating rod 42, which provides stable support for the rotation of the clamping plate 41. The outer wall of the rotating rod 42 is fixedly connected to the inner wall of the connector 2, which ensures that the position of the rotating rod 42 is fixed and prevents the clamping plate 41 from shifting. The outer wall of the rotating rod 42 is fixedly connected to the clamping plate 41, which, as a core component, can drive the components to lock and release the wiring. The bottom of the clamping plate 41 is fixedly connected to a fixing frame 43, which rises and falls with the clamping plate 41 to press or release the wiring. The inner wall of the connector 2 is fixedly connected to a wiring electrode 44, which can contact the wiring to transmit current signals. The inner wall of the connector 2 is fixedly connected to a wire 45, which can connect the electrode and the wiring hole 46 to form a stable signal path. The outer wall of the connector 2 is fixedly connected to a wiring hole 46, which can connect to external devices to realize signal transmission and reception. The bottom of the clamping plate 41 is fixedly connected to a reset component 47, which can release the reset force to drive the clamping plate 41 and the fixing frame 43 to automatically reset and press the wiring. Reference Figure 1 , Figure 3 and Figure 4 The reset assembly 47 includes a limit ring 471, which can limit the extension range of the spring 473 to extend its life. The bottom of one limit ring 471 is fixedly connected to the top of the connector 2, which can provide stable support for the spring 473. The top of the other limit ring 471 is fixedly connected to the bottom of the clamping plate 41, which can move with the clamping plate 41 to ensure the stability of the extension direction of the spring 473. The top of the connector 2 is fixedly connected to a positioning post 472, which cooperates with the connecting groove 474 to guide the rotation of the clamping plate 41 and ensure the precise lifting and lowering of the fixing frame 43. The outer wall of the positioning post 472 is fitted with a spring 473, which, as a core component, can be pressed to store force and released to reset. The outer wall of the clamping plate 41 is provided with a connecting groove 474, which is adapted to the positioning post 472 to guide rotation and limit the angle. Reference Figures 2 to 4The fixing mechanism 5 includes a slide 53, which provides support for the movement of the fixing component 51 to ensure smooth sliding. The outer walls of both slides 53 are slidably connected to the inner wall of the connector 2, allowing the slides 53 to move flexibly to adjust the position of the fixing component 51. The fixing component 51 is fixedly connected to the adjacent side of the two slides 53. The movement of the slides 53 can lock the clamp 41 to prevent it from moving. The top of the fixing component 51 is fixedly connected with anti-slip texture 52 to increase friction and prevent slippage when pushing. Two grooves 54 are opened on the inner wall of the connector 2. The slide 53 is adapted to provide a track to ensure precise movement. The fixing component 51 includes a fixing plate 511, which, as the main body, covers the locking clamp 41 to restrict pressing actions. The outer wall of the fixing plate 511 is fixedly connected to the outer wall of the two slides 53. Stable movement is achieved through the cooperation of the slides 53 and the slide groove 54. Multiple locking balls 512 are fixedly connected to the bottom of the fixing plate 511, which cooperate with the locking grooves 513 to form a buckle to enhance the fixing stability. Multiple locking grooves 513 are opened on the top of the clamp 41, which are adapted to the locking balls 512 to securely fix the device. The fixing plate 511 prevents displacement. One end of the wire 45 is fixedly connected to the bottom of the wiring electrode 44 to ensure good conductivity and stable signal transmission. The other end of the wire 45 is fixedly connected to the outer wall of the wiring hole 46, enabling signal communication between the terminal and external devices. One end of the spring 473 is fixedly connected to the top of the connector 2, providing fixed support to ensure that the bottom does not move during extension and retraction. The other end of the spring 473 is fixedly connected to the bottom of the clamping plate 41, allowing it to retract and reset with the clamping plate 41. The outer wall of the fixing bracket 43... The sliding connection to the inner wall of the connector 2 ensures smooth tightening or loosening of the wiring without any jamming during lifting. The outer wall of the positioning column 472 is detachably connected to the inner wall of the connecting groove 474, which facilitates the installation and maintenance of the clamping plate 41 and ensures the fitting accuracy. The outer wall of the slide 53 is slidably connected to the inner wall of the slide groove 54, which allows the slide 53 to slide stably along the slide groove 54 and drive the fixing plate 511 into precise position. The top of the fixing plate 511 is detachably connected to the top of the clamping plate 41, which makes it easy to remove the fixing plate 511 when disconnecting the wiring without affecting the use of the quick-release mechanism 4.
[0011] Working principle: When wiring is required, the wire is directly inserted into the wiring port 3. Simultaneously, pressing down on the clamp 41 causes it to rotate around the rotating rod 42, retracting the spring 473. This causes the positioning pin 472 to insert into the connecting groove 474. The rotation of the clamp 41 then raises the fixing frame 43, placing the wire between the fixing frame 43 and the wiring electrode 44. Releasing the clamp 41 releases the spring 473, causing the fixing frame 43 to press down and fix the wire between the fixing frame 43 and the wiring electrode 44. To remove the wire, the clamp 41 is pressed down again, raising the fixing frame 43. This device allows for quick wiring installation without tools, significantly reducing installation time and procedures.
[0012] After the wiring is installed, the fixing plate 511 is moved by pushing it. The slides 53 on both sides of the fixing plate 511 slide in the slide grooves 54 on both sides, and finally the fixing plate 511 slides onto the clamping plate 41. The multiple locking balls 512 at the bottom of the fixing plate 511 and the locking grooves 513 on the clamping plate 41 engage with each other, so that the fixing plate 511 is fixed on the clamping plate 41 as a whole. Finally, the clamping plate 41 is fixed on the terminal block, which further strengthens the connection strength and prevents the wiring from falling off due to workers accidentally touching the clamping plate 41.
[0013] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A quick-plug terminal block structure for a relay protection device in a thermal power plant, comprising a mounting bracket (1), characterized in that: The outer wall of the mounting bracket (1) is detachably connected to a connector (2), the inner wall of the connector (2) is provided with a wiring port (3), the top of the connector (2) is equipped with a quick-release mechanism (4), and the top of the connector (2) is equipped with a fixing mechanism (5). The quick-release mechanism (4) includes a rotating rod (42), the outer wall of which is fixedly connected to the inner wall of the connector (2), a clamping plate (41) is fixedly connected to the outer wall of the rotating rod (42), a fixing frame (43) is fixedly connected to the bottom of the clamping plate (41), a wiring electrode (44) is fixedly connected to the inner wall of the connector (2), a wire (45) is fixedly connected to the inner wall of the connector (2), a wiring hole (46) is fixedly connected to the outer wall of the connector (2), and a reset assembly (47) is fixedly connected to the bottom of the clamping plate (41).
2. The quick-plug terminal block structure for a relay protection device in a thermal power plant according to claim 1, characterized in that: The reset assembly (47) includes a limiting ring (471), the bottom of one of the limiting rings (471) is fixedly connected to the top of the connector (2), the top of the other limiting ring (471) is fixedly connected to the bottom of the clamp (41), the top of the connector (2) is fixedly connected to a positioning post (472), the outer wall of the positioning post (472) is fitted with a spring (473), and the outer wall of the clamp (41) is provided with a connecting groove (474).
3. The quick-plug terminal block structure for a relay protection device in a thermal power plant according to claim 1, characterized in that: The fixing mechanism (5) includes a slide (53), the outer walls of the two slides (53) are slidably connected to the inner wall of the connector (2), a fixing component (51) is fixedly connected to the adjacent side of the two slides (53), and an anti-slip texture (52) is fixedly connected to the top of the fixing component (51). Two grooves (54) are opened on the inner wall of the connector (2).
4. The quick-plug terminal block structure for a relay protection device in a thermal power plant according to claim 3, characterized in that: The fixing component (51) includes a fixing plate (511), the outer wall of the fixing plate (511) is fixedly connected to the outer wall of the two slides (53), a plurality of locking balls (512) are fixedly connected to the bottom of the fixing plate (511), and a plurality of locking slots (513) are opened on the top of the clamping plate (41).
5. The quick-plug terminal block structure for a relay protection device in a thermal power plant according to claim 2, characterized in that: One end of the wire (45) is fixedly connected to the bottom of the wiring electrode (44), and the other end of the wire (45) is fixedly connected to the outer wall of the wiring hole (46).
6. The quick-plug terminal block structure for a relay protection device in a thermal power plant according to claim 2, characterized in that: One end of the spring (473) is fixedly connected to the top of the connector (2), and the other end of the spring (473) is fixedly connected to the bottom of the clamp (41).
7. The quick-plug terminal block structure for a relay protection device in a thermal power plant according to claim 2, characterized in that: The outer wall of the fixing bracket (43) is slidably connected to the inner wall of the connector (2), and the outer wall of the positioning post (472) is detachably connected to the inner wall of the connecting groove (474).
8. The quick-plug terminal block structure for a relay protection device in a thermal power plant according to claim 4, characterized in that: The outer wall of the carriage (53) is slidably connected to the inner wall of the slide groove (54), and the top of the fixing plate (511) is detachably connected to the top of the clamping plate (41).