An alternating current low-voltage draw-out type switchgear applied to smart power internet of things
The design of the quick-release maintenance mechanism and the detection and protection mechanism solves the problems of inconvenience and safety hazards in the maintenance of AC low-voltage withdrawable switchgear, and realizes fast and safe maintenance operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-03-31
AI Technical Summary
Existing AC low-voltage withdrawable switchgear is inconvenient to operate during maintenance and poses safety hazards, especially due to the high risk caused by the uncertainty of power line disconnection.
It adopts a quick-release maintenance mechanism and a detection and protection mechanism. The quick-release maintenance mechanism achieves rapid disassembly and fixation through the cooperation of linkage rod, guide plate and U-shaped guide frame, while the detection and protection mechanism ensures safety through power cord storage and alarm.
It enables the quick opening and closing of the inspection port, reducing operating steps and costs, while improving inspection safety, preventing messy power cords and mis-plugging, and reducing accidental risks.
Smart Images

Figure CN120433029B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of switchgear technology, specifically to an AC low-voltage withdrawable switchgear applied to the Internet of Things for smart power. Background Technology
[0002] AC low-voltage withdrawable switchgear used in smart power Internet of Things is a key device in low-voltage power supply systems responsible for power control, protection, conversion and distribution. The cabinet is usually assembled by welding or screws and has sufficient mechanical strength and rigidity to withstand the mechanical and thermal stress generated by the installed components and short circuits.
[0003] In order to promptly detect and handle potential faults in existing AC low-voltage withdrawable switchgear, thereby preventing the faults from escalating and ensuring the overall stable operation of the power system, regular maintenance is required. However, the maintenance panels of existing AC low-voltage withdrawable switchgear are mostly fixed by multiple bolts, which require a large torsional force during installation or disassembly, and also require tools for disassembly and installation, which is quite inconvenient.
[0004] In addition, during maintenance, it is necessary to disconnect the power cord to ensure the safety of the staff. This is to prevent personal injury or equipment damage in the event of misoperation or accidental equipment startup. However, since disconnecting the power cord is mostly done manually, there are many uncertainties. It is easy to forget to disconnect the power cord when busy or distracted, which increases the danger during maintenance.
[0005] Therefore, this invention proposes an AC low-voltage withdrawable switchgear for use in the smart power Internet of Things to solve the above problems. Summary of the Invention
[0006] In view of this, the technical problem to be solved by the present invention is to propose an AC low-voltage withdrawable switchgear for use in smart power Internet of Things, so as to solve the problem that the existing AC low-voltage withdrawable switchgear is inconvenient to maintain.
[0007] To achieve the above objectives, the present invention provides the following technical solution: an AC low-voltage withdrawable switchgear for use in smart power Internet of Things, comprising a switchgear body, wherein a power cord is fixedly connected to the rear side of the switchgear body, and further comprising: a quick-release maintenance mechanism and a detection and protection mechanism, wherein the detection and protection mechanism is located on one side of the quick-release maintenance mechanism;
[0008] The quick-release maintenance mechanism is used to quickly open the maintenance port of the switch cabinet body, and the detection and protection mechanism is used to store the power cord.
[0009] The preferred quick-release maintenance mechanism includes a maintenance plate body, which is slidably connected to the rear side of the switch cabinet body. A support plate is fixedly connected to one side of the maintenance plate body, and support columns are symmetrically fixedly connected to the bottom of the support plate. Sliding plates are slidably connected between the support columns, and a return spring is fixedly connected between the sliding plates and the support plates.
[0010] Preferably, both sides of the sliding plate are fixedly connected with linkage rods, and guide plates are symmetrically fixedly connected to opposite sides of the linkage rods. A guide groove is opened on one side of the guide plate, and a U-shaped guide frame is symmetrically slidably connected to one side of the inspection plate body. The U-shaped guide frame is slidably connected to the guide groove.
[0011] Preferably, the U-shaped guide frame is fixedly connected with insert rods at equal intervals on one side, the switch cabinet body is fixedly connected with a bottom limiting plate on one side, and the switch cabinet body is symmetrically fixedly connected with side limiting plates on one side. The bottom of the linkage rod is engaged with the bottom limiting plate, and the insert rod is engaged with the adjacent side limiting plate.
[0012] The preferred detection and protection mechanism includes a linkage rack, which is fixedly connected to one side of the inspection plate body and slidably connected to the switch cabinet body.
[0013] Preferably, a guide column is fixedly connected to one side of the switch cabinet body, a slider is slidably connected to the outer surface of the guide column, a connecting rod is fixedly connected to one side of the slider, and spring telescopic rods are symmetrically fixedly connected to the top of the connecting rods. A rotating roller is rotatably connected between the top ends of the spring telescopic rods.
[0014] Preferably, a U-shaped rod is fixedly connected between the tops of the spring telescopic rods, a first electrical contact is fixedly connected to one side of the connecting rod, a second electrical contact is fixedly connected to one side of the U-shaped rod, and an alarm is fixedly connected to one side of the switch cabinet body. The first and second electrical contacts are electrically connected to control the opening and closing of the alarm.
[0015] Preferably, a connecting rope is fixedly connected to the top of the slider, and a storage roller is rotatably connected to one side of the switch cabinet body. The top end of the connecting rope is fixedly connected to the storage roller, and a gear is fixedly connected to one end of the storage roller. The gear meshes with a linkage rack.
[0016] Compared with the prior art, the present invention provides an AC low-voltage withdrawable switchgear for use in the smart power Internet of Things, which has the following advantages:
[0017] 1. Through the quick-release maintenance mechanism, with the cooperation of the linkage rod, guide plate, guide groove and U-shaped guide frame, the linkage rod can be engaged with the bottom limit plate and the insertion rod can be engaged with the symmetrical side limit plate by simply pressing the sliding plate. At the same time, the multi-angle engagement and fixation can be released, saving operation steps. Moreover, when fixing, the return spring can also fix and limit the maintenance plate body at multiple angles at the same time. This not only ensures the fixing effect of the maintenance plate body when it is closed, but also allows the maintenance port to be opened quickly when maintenance is carried out, saving time and reducing inspection costs.
[0018] 2. The detection and protection mechanism can promptly detect situations where the power cord is not unplugged, preventing accidents caused by the power cord not being unplugged and improving safety during switch cabinet maintenance. Simultaneously, the rotating roller pushes the power cord close to one side of the switch cabinet for storage, preventing it from being scattered on the ground during maintenance and avoiding damage from being stepped on. It also prevents unsuspecting personnel from accidentally replugging the power cord, further enhancing safety during switch cabinet maintenance. Furthermore, the spring-loaded telescopic rod and rotating roller utilize the resistance of the power cord being plugged into the power supply to trigger the alarm, saving energy and reducing alarm costs. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 For the present invention Figure 1 Three-dimensional structural diagram of the middle and rear sides;
[0021] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;
[0022] Figure 4 This is a three-dimensional structural diagram of the inspection plate body of the present invention;
[0023] Figure 5 For the present invention Figure 1 Three-dimensional structural diagram of the middle side;
[0024] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point B;
[0025] Figure 7 For the present invention Figure 5 Partial 3D structural diagram.
[0026] In the picture:
[0027] 1. Switch cabinet body; 2. Power cord;
[0028] 301. Inspection plate body; 302. Support plate; 303. Sliding plate; 304. Support column; 305. Return spring; 306. Linkage rod; 307. Guide plate; 308. Guide groove; 309. Bottom limit plate; 310. U-shaped guide frame; 311. Insert rod; 312. Side limit plate;
[0029] 401. Linkage rack; 402. Guide post; 403. Slider; 404. Connecting rod; 405. Spring telescopic rod; 406. Rotating roller; 407. U-shaped rod; 408. First electrical contact; 409. Second electrical contact; 410. Alarm; 411. Connecting rope; 412. Collection roller; 413. Gear. Detailed Implementation
[0030] 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.
[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.
[0032] Embodiments of the present invention: Please refer to Figures 1 to 7 As shown:
[0033] To address the problems mentioned in the technical solutions, this application provides an AC low-voltage withdrawable switchgear for use in smart power Internet of Things, including a switchgear body 1, a power cord 2 fixedly connected to the rear side of the switchgear body 1, and also including a quick-release maintenance mechanism and a detection and protection mechanism, with the detection and protection mechanism located on one side of the quick-release maintenance mechanism.
[0034] The quick-release maintenance mechanism is used to quickly open the maintenance port of the switch cabinet body 1, and the detection and protection mechanism is used to store the power cord 2.
[0035] The quick-release maintenance mechanism includes a maintenance plate body 301, which is slidably connected to the rear side of the switchgear body 1. A support plate 302 is fixedly connected to one side of the maintenance plate body 301. Support columns 304 are symmetrically fixedly connected to the bottom of the support plate 302. A sliding plate 303 is slidably connected between the support columns 304. A return spring 305 is fixedly connected between the sliding plate 303 and the support plate 302. A linkage rod 306 is fixedly connected to both sides of the sliding plate 303. A guide plate 3 is symmetrically fixedly connected to the opposite side of the linkage rod 306. 07. A guide groove 308 is provided on one side of the guide plate 307. A U-shaped guide frame 310 is symmetrically slidably connected to one side of the inspection plate body 301. The U-shaped guide frame 310 is slidably connected to the guide groove 308. Insert rods 311 are fixedly connected at equal intervals on one side of the U-shaped guide frame 310. A bottom limit plate 309 is fixedly connected to one side of the switch cabinet body 1. A side limit plate 312 is symmetrically fixedly connected to one side of the switch cabinet body 1. The bottom of the linkage rod 306 is engaged with the bottom limit plate 309. The insert rod 311 is engaged with the adjacent side limit plate 312.
[0036] In existing technologies, AC low-voltage withdrawable switchgear requires regular maintenance to promptly detect and address potential faults, preventing escalation and ensuring the overall stability of the power system. However, existing maintenance panels for AC low-voltage withdrawable switchgear are mostly fixed with multiple bolts, requiring significant torsional force and tools for installation and removal, which is inconvenient. Compared to existing technologies, this embodiment utilizes a linkage rod 306, a guide plate 307, a guide groove 308, and a U-shaped... With the cooperation of the guide frame 310, the simple pressing of the sliding plate 303 can simultaneously complete the engagement of the linkage rod 306 with the bottom limit plate 309 and the engagement of the insertion rod 311 with the symmetrical side limit plate 312, while releasing the multi-angle engagement fixation, saving operation steps. Moreover, during fixation, the return spring 305 can also simultaneously complete the multi-angle fixation and limitation of the inspection plate body 301, thus not only ensuring the fixation effect of the inspection plate body 301 when closed, but also allowing the inspection port to be quickly opened during maintenance, saving time and reducing inspection costs.
[0037] Further examples: Please refer to Figures 1 to 7 As shown:
[0038] The detection and protection mechanism includes a linkage rack 401, which is fixedly connected to one side of the inspection plate body 301. The linkage rack 401 is slidably connected to the switch cabinet body 1. A guide post 402 is fixedly connected to one side of the switch cabinet body 1. A slider 403 is slidably connected to the outer surface of the guide post 402. A connecting rod 404 is fixedly connected to one side of the slider 403. Spring telescopic rods 405 are symmetrically fixedly connected to the top of the connecting rods 404. A rotating roller 406 is rotatably connected between the top ends of the spring telescopic rods 405. A U-shaped rod 407 is fixedly connected between the top ends of the spring telescopic rods 405. A first electrical contact 408 is fixedly connected to one side of the connecting rod 404, a second electrical contact 409 is fixedly connected to one side of the U-shaped rod 407, an alarm 410 is fixedly connected to one side of the switch cabinet body 1, the first electrical contact 408 and the second electrical contact 409 are electrically connected to control the opening and closing of the alarm 410, a connecting rope 411 is fixedly connected to the top of the slider 403, a storage roller 412 is rotatably connected to one side of the switch cabinet body 1, the top end of the connecting rope 411 is fixedly connected to the storage roller 412, a gear 413 is fixedly connected to one end of the storage roller 412, and the gear 413 meshes with the linkage rack 401.
[0039] In existing technologies, during maintenance, the power cord 2 needs to be disconnected to ensure the safety of personnel. This is to prevent injury or equipment damage even in the event of misoperation or accidental equipment startup. However, since disconnecting the power cord 2 is mostly done manually, it involves many uncertainties. This can easily lead to forgetting to disconnect the power cord 2 when busy or distracted, increasing the risk during maintenance. Compared to existing technologies, the implementation of this embodiment can promptly detect situations where the power cord 2 is not disconnected, avoiding accidents caused by the power cord 2 not being unplugged, and improving the efficiency of the switch cabinet. The system ensures safety during maintenance of the main body 1. The rotating roller 406 pushes the power cord 2 to one side of the main body 1 for storage, preventing it from being scattered on the ground and damaged by being stepped on. It also prevents unsuspecting personnel from accidentally re-inserting the power cord 2 into the power supply, further enhancing safety during maintenance. Furthermore, the spring telescopic rod 405 and rotating roller 406 utilize the resistance of the power cord 2 when inserted into the power supply to trigger the alarm 410, saving energy and reducing alarm costs.
[0040] The working principle of all the content in the above embodiments is as follows:
[0041] In the initial state: when the return spring 305 is in the normal state, the sliding plate 303 is located at the lower end of the support column 304, the lower end of the linkage rod 306 is engaged with the bottom limit plate 309, and the insertion rod 311 is engaged with the side limit plate 312 symmetrically located at the lower end.
[0042] The following is the working process of the quick-release repair mechanism:
[0043] When it is necessary to disassemble the inspection panel body 301 and open the inspection port of the switch cabinet body 1, the operator only needs to press the sliding piece 303, causing the sliding piece 303 to slide towards the support piece 302. The return spring 305 is compressed. When the sliding piece 303 slides upward, it will simultaneously drive the linkage rod 306 and the guide plate 307 to move upward, causing the bottom of the linkage rod 306 to disengage from the bottom limit plate 309. The upward movement of the guide plate 307 will drive the guide groove 308 to move. Because the guide groove 308 is inclined, under the squeezing and pushing of the inclined surface of the guide groove 308, the U-shaped guide frame 310 will slide towards the linkage rod 306, thereby causing the U-shaped guide frame 310 to drive the inserts on both sides. The rod 311 moves away from the side limiting plate 312, causing the insertion rod 311 to disengage from the side limiting plate 312. At this time, the locking limit between the insertion rod 311 and the side limiting plate 312 is released, and the locking limit between the linkage rod 306 and the bottom limiting plate 309 is released. Thus, the inspection plate body 301 can be pulled upward to open the inspection port blocked by the inspection plate body 301. When the inspection plate body 301 slides upward to align with the side limiting plate 312 symmetrical at the upper end, the sliding piece 303 can be released. At this time, under the rebound of the return spring 305, the U-shaped guide frame 310 is driven to reset, thereby causing the insertion rod 311 to engage with the side limiting plate 312 symmetrical at the upper end, completing the fixation of the inspection plate body 301 after opening.
[0044] With the cooperation of the linkage rod 306, guide plate 307, guide groove 308 and U-shaped guide frame 310, the simple pressing of the sliding piece 303 can simultaneously complete the engagement of the linkage rod 306 with the bottom limit plate 309 and the engagement of the insertion rod 311 with the symmetrical side limit plate 312, while releasing the multi-angle engagement fixation, saving operation steps. Moreover, during fixation, the return spring 305 can also simultaneously complete the multi-angle fixation and limitation of the inspection plate body 301, thus not only ensuring the fixation effect of the inspection plate body 301 when closed, but also allowing the inspection port to be quickly opened during maintenance, saving time and reducing inspection costs.
[0045] Please refer to the above work process. Figures 1 to 7 .
[0046] The following is the working process of the testing and protection agency:
[0047] Furthermore, when the inspection panel body 301 is opened and the switch cabinet body 1 is inspected, the inspection panel body 301 rises, causing the linkage rack 401 to rise. Since the linkage rack 401 and the gear 413 are in a meshing state, the gear 413 will rotate, causing the storage roller 412 to rotate, so that the storage roller 412 will wind up the connecting rope 411. When winding, the connecting rope 411 pulls the slider 403 to rise along the guide column 402. At the same time, the slider 403 drives the connecting rod 404, the spring telescopic rod 405 and the rotating roller 406 to rise, so that the rotating roller 406 pushes the power cord 2 to move upward, thereby making the power cord 2 fit against one side of the switch cabinet body 1, completing the storage of the power cord 2.
[0048] If power cord 2 is plugged into the power supply and left unplugged, since one end of power cord 2 is connected to the switch cabinet body 1 and the other end is connected to the power source, the upward movement of slider 403 will cause the rotating roller 406 to generate significant resistance when pushing power cord 2. Therefore, the spring telescopic rod 405 will retract a considerable distance due to this resistance, causing the second electrical contact 409 to come into contact with and approach the first electrical contact 408, thus activating the alarm 410. Personnel preparing to open the inspection panel body 301 and perform maintenance on the switch cabinet body 1 will hear the alarm 410 and promptly discover that power cord 2 has not been unplugged, preventing further incidents caused by power cord 2 not being unplugged. The design improves safety during maintenance of the switch cabinet body 1 by preventing unexpected situations. The rotating roller 406 pushes the power cord 2 to one side of the switch cabinet body 1 for storage, preventing it from being scattered on the ground and damaged by being stepped on. It also prevents unsuspecting personnel from accidentally re-inserting the power cord 2 into the power supply, further enhancing safety during maintenance. Furthermore, the spring telescopic rod 405 and rotating roller 406 utilize the resistance of the power cord 2 when inserted into the power supply to trigger the alarm 410, saving energy and reducing alarm costs.
[0049] Please refer to the above work process. Figures 1 to 7 .
[0050] 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.
[0051] 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. An application for intelligent power Internet of Things alternating current low voltage draw-out type switchgear, comprising a switchgear body (1), the rear side of the switchgear body (1) is fixedly plugged with a power line (2), characterized in that, Also include: quick maintenance mechanism and detection protection mechanism, detection protection mechanism is located in quick maintenance mechanism side; The quick maintenance mechanism is used for quickly opening the switch cabinet body (1) maintenance opening, and the detection protection mechanism is used for accommodating the power line (2); The quick maintenance mechanism includes a maintenance plate body (301), the maintenance plate body (301) is slidably connected to the rear side of the switch cabinet body (1), one side of the maintenance plate body (301) is fixedly connected with a supporting piece (302), the bottom of the supporting piece (302) is fixedly connected with a supporting column (304) symmetrically, a sliding piece (303) is slidably connected between the supporting columns (304), and a return spring (305) is fixedly connected between the sliding piece (303) and the supporting piece (302). Both sides of the sliding piece (303) are fixedly connected with a linkage rod (306), opposite sides of the linkage rod (306) are fixedly connected with a guide plate (307) symmetrically, a guide inclined slot (308) is formed in one side of the guide plate (307), and a U-shaped guide frame (310) is slidably connected to one side of the maintenance plate body (301) symmetrically. A plug rod (311) is fixedly connected to one side of the U-shaped guide frame (310) at equal intervals, a bottom limiting plate (309) is fixedly connected to one side of the switch cabinet body (1), side limiting plates (312) are fixedly connected to one side of the switch cabinet body (1) symmetrically, the linkage rod (306) is clamped to the bottom limiting plate (309), and the plug rod (311) is clamped to the adjacent side limiting plate (312). A guide column (402) is fixedly connected to one side of the switch cabinet body (1), a sliding block (403) is slidably connected to the outer surface of the guide column (402), a connecting rod (404) is fixedly connected to one side of the sliding block (403), spring telescopic rods (405) are fixedly connected to the top of the connecting rod (404) symmetrically, and rotating rollers (406) are rotatably connected between the top ends of the spring telescopic rods (405). A U-shaped rod (407) is fixedly connected between the top portions of the spring telescopic rods (405), a first electric contact (408) is fixedly connected to one side of the connecting rod (404), a second electric contact (409) is fixedly connected to one side of the U-shaped rod (407), an alarm (410) is fixedly connected to one side of the switch cabinet body (1), and the first electric contact (408) and the second electric contact (409) are electrically connected to control the opening and closing of the alarm (410).
2. The AC low-voltage draw-out switchgear applied to the smart power internet of things according to claim 1, characterized in that: The detection protection mechanism includes a linkage rack (401), the linkage rack (401) is fixedly connected to one side of the maintenance plate body (301), and the linkage rack (401) is slidably connected to the switch cabinet body (1).
3. The AC low-voltage draw-out switchgear applied to the smart power internet of things according to claim 2, characterized in that: The slider (403) top fixedly connected with connecting rope (411), the switch cabinet body (1) one side rotationally connected with receiving roller (412), the connecting rope (411) top end and receiving roller (412) fixedly connected, the receiving roller (412) one end fixedly connected with gear (413), the gear (413) and linkage rack (401) are engaged.
Citation Information
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