Hard pressing plate on-line detection locking device
By linking the locking mechanism and the key design, the problems of easy loss and inconvenient operation of traditional locks are solved, realizing convenient and safe operation of the online detection locking device of the hard pressure plate, and improving the safety and practicality of power equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI RUIBAICHENG ELECTRIC CO LTD
- Filing Date
- 2025-04-14
- Publication Date
- 2026-04-21
AI Technical Summary
Traditional locks with existing hard-plate online detection locking devices are easily lost and inconvenient to open, resulting in poor practicality.
It adopts a locking mechanism and key design, and realizes convenient locking or unlocking operation through the linkage of bearings, transmission rods, rectangular gears and threaded rods. It is also equipped with an electronic control board and attractive magnets to improve security and stability.
It optimizes the efficiency of opening and closing locks, improves security and practicality, avoids the problem of locks being easily lost, and maintains efficient and convenient operation.
Smart Images

Figure CN224149342U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of online detection technology for hard pressure plates, specifically to an online detection locking device for hard pressure plates. Background Technology
[0002] The hard plate online detection and interlocking device is a safety protection device for power equipment (such as substation cabinets). It is mainly used to realize the forced interlocking and status monitoring of hard plates. Its core function is to ensure the safe operation of the power system through physical isolation and status monitoring.
[0003] Currently, there are many types of online detection and interlocking devices for hard pressure plates. For example, Chinese Patent No. CN202222382182.6 describes a forced interlocking device for a substation hard pressure plate. This patent includes a main housing, one end of which has a rotatable cover. A powerful electromagnet is installed inside the main housing to attract the interlocking device to the substation cabinet. The other end of the main housing is open and can cover the panel buttons of the substation cabinet. A power supply component electrically connected to the powerful electromagnet is installed inside the main housing. A lock is provided between the cover and the main housing. This utility model addresses this by covering the main housing in a way that prevents operation. The cabinet buttons are enclosed in a protective shield structure. A powerful electromagnet securely attaches the locking device to the cabinet. Under normal circumstances, once the electromagnet is attached to the cabinet, it has a very strong attraction, making it difficult to remove from the outside. Only authorized personnel can open the lock and lift the cover to operate the panel buttons inside, thus improving the safety of electrical work. However, in actual use, because the patent uses a traditional lock, although this lock can only be opened and operated by operators, it is also very easy to lose and inconvenient to open, resulting in poor practicality. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this utility model provides an online detection and locking device for hard pressure plates, which has the advantages of convenient and safe opening and closing, and solves the problem of poor practicality of the device.
[0005] To achieve the above-mentioned purpose of convenient and safe opening and closing, this utility model provides the following technical solution: an online detection and locking device for a hard pressure plate, comprising a frame body, a closing plate provided on the frame body, and a locking mechanism provided on the closing plate;
[0006] The locking mechanism includes a cavity. The cavity is formed inside the sealing plate. A bearing is fixedly installed on the inner wall of the front side of the cavity. A transmission rod is fixedly passed through the inner wall of the bearing. A locking pin is fixedly connected to the end of the transmission rod away from the cavity. A rectangular gear is provided at the end of the transmission rod away from the locking pin. Two fixing plates are fixedly installed inside the cavity. A bearing is fixedly installed on the opposite surface of the two fixing plates. A transmission sleeve is fixedly passed through the two bearings. A rectangular gear is provided on the two transmission sleeves and connected to the rectangular gear. A threaded rod extending to the outside of the sealing plate is threadedly connected inside the two transmission sleeves. Two guide limit blocks are fixedly installed on the two threaded rods.
[0007] Furthermore, a key is inserted into the locking pin, and the outer wall of the first rectangular gear and the outer walls of the two second rectangular gears are in a meshing connection.
[0008] Furthermore, the inner top and bottom walls of the frame body are provided with insertion holes adapted to the threaded rods, and the inner walls of the upper and lower sides of the sealing plate are provided with two limiting grooves adapted to the guide limiting blocks, and the inner wall of the limiting groove is slidably connected to the outer wall of the guide limiting block.
[0009] Furthermore, the inner wall of the main frame body is fixedly installed with electronic control main board components, alarm sensing components and a main control switch.
[0010] Furthermore, four mounting plates are fixedly installed inside the main frame, and each mounting plate is fixedly connected with a magnetic magnet by bolts.
[0011] Furthermore, two guide limiting strips are provided on both the upper and lower sides of the closed plate, and two limiting grooves adapted to the guide limiting strips are provided on the inner walls of both the upper and lower sides of the frame body, and the inner wall of the limiting groove is slidably connected to the outer wall of the guide limiting strip.
[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0013] 1. This hard-plate online detection locking device, through the setting of a locking mechanism and a key, firstly, the key is inserted into the lock cylinder and rotated. At this time, the lock cylinder will drive the transmission rod on the first bearing and the rectangular gear on one side to move. Then, by setting a fixed plate, a second bearing, a transmission sleeve, and a second rectangular gear, the first rectangular gear rotates while driving the second rectangular gear and the transmission sleeve to rotate. Finally, by setting a threaded rod and a guide limit block, the threaded rods on both sides can move in conjunction with the transmission sleeve while it rotates, and can move close to or away from it, thereby realizing the locking or unlocking operation. Thus, this design not only effectively optimizes the locking and unlocking efficiency, but also does not reduce the security at all, and has strong practicality. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the sealing plate of this utility model;
[0016] Figure 3 This is a front view of the main frame of this utility model;
[0017] Figure 4 This is a left sectional view of the structure of this utility model.
[0018] In the diagram: 1. Frame body; 2. Enclosed plate; 201. Guide limit strip; 3. Locking mechanism; 301. Cavity; 302. Bearing 1; 303. Transmission rod; 304. Locking pin; 305. Rectangular gear 1; 306. Fixing plate; 307. Bearing 2; 308. Transmission sleeve; 309. Rectangular gear 2; 310. Threaded rod; 311. Guide limit block 2; 4. Key; 5. Main control board components; 6. Alarm sensing element; 7. Main control switch; 8. Mounting plate; 9. Attracting magnet. Detailed Implementation
[0019] 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.
[0020] Please see Figure 1-4 The hard pressure plate online detection and locking device in this embodiment includes a frame body 1, a sealing plate 2 is provided on the frame body 1, and a locking mechanism 3 is provided on the sealing plate 2.
[0021] The locking mechanism 3 includes a cavity 301. The cavity 301 is formed inside the sealing plate 2. A bearing 302 is fixedly installed on the inner front wall of the cavity 301. A transmission rod 303 is fixedly inserted through the inner wall of the bearing 302. A locking pin 304 is fixedly connected to the end of the transmission rod 303 away from the cavity 301. A key 4 is inserted into the locking pin 304. A rectangular gear 305 is provided at the end of the transmission rod 303 away from the locking pin 304. First, the key 4 is inserted into the locking pin 304 and rotated. At this time, the locking pin 304 will drive the bearing 302. The transmission rod 303 on 302 and the rectangular gear 305 on one side are movable. Two fixing plates 306 are fixedly installed inside the cavity 301. Bearings 307 are fixedly installed on the opposite surfaces of the two fixing plates 306. Transmission sleeves 308 are fixedly inserted through each of the two bearings 307. Rectangular gears 309 connected to the rectangular gear 305 are mounted on each of the two transmission sleeves 308. The outer walls of the rectangular gears 305 and the outer walls of the two rectangular gears 309 are in a meshing connection. Then, by setting... The fixed plate 306, bearing 307, transmission sleeve 308, and rectangular gear 309 enable the rectangular gear 305 to rotate while simultaneously driving the rectangular gear 309 and transmission sleeve 308 to rotate. Both transmission sleeves 308 have threaded connections to threaded rods 310 extending to the outside of the closed plate 2. The inner top and bottom walls of the frame body 1 have insertion holes adapted to the threaded rods 310. Two guide limit blocks 311 are fixedly installed on each of the two threaded rods 310. Meanwhile, the closed plate 2... Two limiting grooves are provided on the inner walls of both the upper and lower sides of the sleeve 308, which are adapted to the guide limiting block 311. The inner wall of the limiting groove is slidably connected to the outer wall of the guide limiting block 311. Finally, by setting the threaded rod 310 and the guide limiting block 311, the threaded rods 310 on both sides can move in conjunction with the sleeve 308 while it rotates, and can move close to or away from it, thereby realizing the locking or unlocking operation. Thus, this design not only effectively optimizes the locking and unlocking efficiency, but also does not reduce the safety at all, and has strong practicality.
[0022] In the implementation of the case, the inner wall of the frame body 1 is fixedly installed with an electronic control main board component 5, an alarm sensing element 6, and a main control switch 7. The electronic control main board component 5, the alarm sensing element 6, and the main control switch 7 are all electrically connected by wires. The electronic control main board component 5 can detect the working status of the hard pressure plate in real time. If an abnormality occurs, the alarm sensing element 6 will react quickly and issue a warning. The main control switch 7 can control the opening and closing status of all electronic components on the device.
[0023] In the implementation of the case, four mounting plates 8 are fixedly installed inside the frame body 1. Each mounting plate 8 is fixedly connected to a magnetic magnet 9 by bolts. This design allows the locking device to be installed quickly and stably on the cabinet, preventing it from being moved by the outside.
[0024] In the implementation of the case, two guide limit strips 201 are provided on both the upper and lower sides of the closed plate 2. Two limit grooves 2 that are adapted to the guide limit strips 201 are opened on the inner walls of both the upper and lower sides of the frame body 1. The inner wall of the limit groove 2 and the outer wall of the guide limit strip 201 are in a sliding connection relationship. This design makes the closed plate 2 more stable when it is opened and closed.
[0025] When implementing this procedure, please follow these steps:
[0026] 1) First, insert the key 4 into the lock cylinder 304 and rotate it. At this time, the lock cylinder 304 will drive the transmission rod 303 on the bearing 302 and the rectangular gear 305 on one side to move.
[0027] 2) Then, by setting the fixed plate 306, bearing 307, transmission sleeve 308 and rectangular gear 309, the rectangular gear 305 rotates while driving the rectangular gear 309 and transmission sleeve 308 to rotate.
[0028] 3) Finally, by setting the threaded insert 310 and the guide limit block 311, the threaded inserts 310 on both sides can move in conjunction with the transmission sleeve 308 while it rotates, and can move close to or away from each other, thereby realizing the locking or unlocking operation.
[0029] In summary, this hard-plate online detection locking device, by setting up a locking mechanism 3 and a key 4, firstly, inserts the key 4 into the locking pin 304 and rotates it. At this time, the locking pin 304 will drive the transmission rod 303 on the bearing 302 and the rectangular gear 305 on one side to move. Then, by setting up a fixing plate 306, a bearing 307, a transmission sleeve 308, and a rectangular gear 309, the rectangular gear 305 rotates while driving the rectangular gear 309 and the transmission sleeve 308 to rotate. Finally, by setting a thread... The insertion rod 310 and the guide limit block 311 enable the threaded insertion rods 310 on both sides to move in conjunction with the transmission sleeve 308 while it rotates, allowing them to move close to or away from each other, thereby achieving locking or unlocking. This design not only effectively optimizes the locking and unlocking efficiency but also maintains the safety without any reduction. It is highly practical and solves the problem that the patent uses traditional locks for locking. Although such locks can ensure that only operators can open and operate them, they are also easy to lose and inconvenient to open, resulting in poor practicality.
[0030] 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. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0031] 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 hard-pressing plate online detection locking device, comprising a frame body (1), characterized in that: The frame body (1) is provided with a closed plate (2), and the closed plate (2) is provided with a locking mechanism (3). The locking mechanism (3) includes a cavity (301). The cavity (301) is opened inside the sealing plate (2). A bearing (302) is fixedly installed on the inner wall of the front side of the cavity (301). A transmission rod (303) is fixedly inserted through the inner wall of the bearing (302). A locking pin (304) is fixedly connected to one end of the transmission rod (303) away from the cavity (301). A rectangular gear (305) is provided at one end of the transmission rod (303) away from the locking pin (304). Two fixed... On the opposite surfaces of the two fixed plates (306), bearings (307) are fixedly installed. Transmission sleeves (308) are fixedly installed on the two bearings (307). Rectangular gears (309) connected to rectangular gears (305) are provided on the two transmission sleeves (308). Threaded rods (310) extending to the outside of the closed plate (2) are threadedly connected inside the two transmission sleeves (308). Two guide limit blocks (311) are fixedly installed on the two threaded rods (310).
2. The online detection locking device for hard pressboard according to claim 1, characterized in that: A key (4) is inserted into the lock pin (304), and the outer wall of the first rectangular gear (305) is meshed with the outer walls of the two second rectangular gears (309).
3. The online detection locking device for hard pressboard according to claim 1, characterized in that: The inner top wall and inner bottom wall of the frame body (1) are provided with insertion holes that are compatible with the threaded rod (310). The upper and lower inner walls of the closed plate (2) are provided with two limiting grooves that are compatible with the guide limiting block (311), and the inner wall of the limiting groove is slidably connected to the outer wall of the guide limiting block (311).
4. The online detection locking device for hard pressboard according to claim 1, characterized in that: The inner wall of the frame body (1) is fixedly installed with an electronic control main board component (5), an alarm sensing component (6), and a main control switch (7).
5. The online detection locking device for hard pressboard according to claim 1, characterized in that: The frame body (1) has four mounting plates (8) fixedly installed inside, and each mounting plate (8) is fixedly connected with a magnetic magnet (9) by bolts.
6. The online detection locking device for hard pressboard according to claim 1, characterized in that: The upper and lower sides of the closed plate (2) are provided with two guide limiting strips (201). The upper and lower inner walls of the frame body (1) are provided with two limiting grooves that are adapted to the guide limiting strips (201). The inner wall of the limiting grooves (201) and the outer wall of the guide limiting strips (201) are in a sliding connection relationship.
Citation Information
Patent Citations
Forced locking device for hard pressing plate of transformer substation
CN218678179U