Self-locking high-voltage switch cabinet

Abstract

The utility model relates to the field of high-voltage switch cabinets, and discloses a self-locking high-voltage switch cabinet, which comprises a cabinet body and a cabinet door rotatably mounted on the front end face of the cabinet body. An electrical component mounting rack is arranged in the cabinet body, and a wedge-shaped locking block is arranged on one side in the cabinet body; a control switch is arranged on the upper portion of the front end face of the cabinet door, a displayer is arranged at the bottom of the front end face of the cabinet door, and a self-locking component is fixedly installed on the edge of one side of the front end face of the cabinet door. The self-locking component comprises a limiting plate and a lock cylinder, the lock cylinder is fixedly installed in the center of the front end face of the limiting plate, and the center of one end in the lock cylinder is fixedly connected with a rolling shaft. According to the utility model, the wedge-shaped locking blocks in the cabinet body and the cabinet door are in matched connection with the self-locking component, so that the high-voltage switch cabinet has a self-locking function; the situation that a worker can lock the high-voltage switch cabinet only by using a key or through a coded lock disc is avoided.

Description

Technical Field

[0001] The utility model relates to the field of high-voltage switch cabinets, in particular to a self-locking high-voltage switch cabinet. Background Art

[0002] High-voltage switchgear is an important device used to control and protect high-voltage electrical equipment in power systems. It is a comprehensive device consisting of high-voltage disconnectors, high-voltage circuit breakers, high-voltage isolating switches, current transformers, voltage transformers, protection devices, control devices, etc. High-voltage switchgear is mainly used in power distribution systems, substations and industrial power systems to switch and protect high-voltage electrical equipment to ensure the safe operation of power systems.

[0003] During the use of the high-voltage switch cabinet, the staff needs to open the cabinet door. However, the existing high-voltage switch cabinet cannot be locked automatically after use. The staff needs to use a key or a password lock disk to lock the high-voltage switch cabinet. This operation of the high-voltage switch cabinet is more troublesome, and there is also a situation where the staff forgets to lock the cabinet door, so the electrical components inside the switch cabinet cannot be protected, and it is easy for the high-voltage switch cabinet to be damaged or the electrical components to be lost, affecting the normal use of the high-voltage switch cabinet. Utility Model Content

[0004] The utility model aims to provide a self-locking high-voltage switch cabinet to solve the following technical problem: how to make the high-voltage switch cabinet have a self-locking function to avoid the staff having to lock the high-voltage switch cabinet with a key or a password lock disk.

[0005] The purpose of the utility model can be achieved by the following technical solution: A self-locking high-voltage switch cabinet, comprising: a cabinet body and a cabinet door, wherein the cabinet door is rotatably mounted on the front end surface of the cabinet body;

[0006] An electrical component mounting frame is provided inside the cabinet, and a wedge-shaped locking block is provided on one side inside the cabinet;

[0007] A control switch is provided at the upper portion of the front end surface of the cabinet door, a display is provided at the bottom portion of the front end surface of the cabinet door, and a self-locking component is fixedly installed at one side edge of the front end surface of the cabinet door;

[0008] The self-locking component includes a limit plate and a lock core, the lock core is fixedly installed at the center of the front end surface of the limit plate, the center of one end of the interior of the lock core is fixedly connected to a winding shaft, the rear end surface of the limit plate is symmetrically slidably clamped with the limit cross bar, the middle outer surface of the limit cross bar is fixedly connected with a tensioning spring, the middle upper surface of the limit cross bar is fixedly connected with a traction rope, the edge of one side of the rear end surface of the limit plate is slidably clamped with a reset push block, a tooth groove is provided inside the reset push block, the upper and lower surfaces of the reset push block are fixedly connected with a reset spring, the upper surface of the tooth groove is meshedly connected with a gear shaft, the outer surface of one end of the gear shaft is fixedly installed with a transmission gear, and the outer surface of one end of the transmission gear is meshedly connected with a lifting placard.

[0009] As a preferred solution of the utility model: one end of the wedge-shaped locking block is aligned with the center between the two sets of limiting cross bars.

[0010] As a preferred solution of the utility model: one end of the reset push block is movably connected with one end of the wedge-shaped locking block.

[0011] As a preferred solution of the utility model: the limit cross bar is connected to the outer surface of the winding shaft through one end of the traction rope.

[0012] As a preferred solution of the utility model: prompt switch slogans are arranged on the upper and lower sides of the lifting slogan board.

[0013] As a preferred solution of the utility model: one end of the limit cross bar is movably abutted against one end of the wedge-shaped locking block.

[0014] Beneficial effects of the utility model:

[0015] (1) The utility model provides a lifting signboard inside the self-locking component, and can display status signs such as "unlocked" and "locked" on the front edge of the cabinet door according to the cabinet door status, thereby reminding the staff to avoid forgetting to lock the cabinet door. In addition, the self-locking component is provided on the edge of the cabinet door, and the cabinet door can be automatically locked as long as it is pulled to close the cabinet body, eliminating the step of using a key to lock, thereby facilitating the staff to lock the high-voltage switch cabinet;

[0016] (2) The utility model can make the high-voltage switch cabinet have a self-locking function by the cooperative connection between the wedge-shaped lock block and the self-locking component inside the cabinet body and the cabinet door, thereby avoiding the staff from locking the high-voltage switch cabinet with a key or a password lock disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a schematic diagram of the high-voltage switchgear structure;

[0019] Figure 2 It is a schematic diagram of the cabinet structure;

[0020] Figure 3 Schematic diagram of the cabinet door structure;

[0021] Figure 4 It is a schematic diagram of the cutaway structure of the self-locking component.

[0022] Description of the drawings: 1. Cabinet body; 2. Cabinet door; 11. Electrical component mounting bracket; 12. Wedge-shaped lock block; 21. Self-locking component; 22. Display; 23. Control switch; 211. Limiting cross bar; 212. Tensioning spring; 213. Limiting plate; 214. Traction rope; 215. Winding shaft; 216. Lock core; 217. Reset spring; 218. Lifting placard; 219. Gear shaft; 220. Transmission gear; 221. Tooth groove; 222. Reset push block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 4 As shown, the utility model is a self-locking high-voltage switch cabinet, comprising: a cabinet body 1 and a cabinet door 2, wherein the cabinet door 2 is rotatably mounted on the front end surface of the cabinet body 1;

[0025] An electrical component mounting frame 11 is provided inside the cabinet 1, and a wedge-shaped locking block 12 is provided on one side inside the cabinet 1;

[0026] A control switch 23 is provided at the upper portion of the front end surface of the cabinet door 2, a display 22 is provided at the bottom portion of the front end surface of the cabinet door 2, and a self-locking component 21 is fixedly installed at one edge of the front end surface of the cabinet door 2;

[0027] The self-locking component 21 includes a limit plate 213 and a lock core 216. The lock core 216 is fixedly installed at the center of the front end surface of the limit plate 213. The center of one end of the lock core 216 is fixedly connected to a winding shaft 215. The rear end surface of the limit plate 213 is symmetrically slidably connected to the limit cross bar 211. The middle outer surface of the limit cross bar 211 is fixedly connected to a tension spring 212. The middle upper surface of the limit cross bar 211 is fixedly connected to a traction rope 214. A reset push block 222 is slidably connected to an edge of one side of the rear end surface of the limit plate 213. The reset push block 222 is provided with a tooth groove 221 inside. The upper and lower surfaces of the reset push block 222 are fixedly connected to a reset spring 217. The upper surface of the tooth groove 221 is meshed with a gear shaft 219. A transmission gear 220 is fixedly installed on the outer surface of one end of the gear shaft 219. The outer surface of one end of the transmission gear 220 is meshed with a lifting placard 218.

[0028] One end of the wedge-shaped locking block 12 is aligned with the center between the two sets of limiting cross bars 211 , and one end of the reset push block 222 is movably connected to one end of the wedge-shaped locking block 12 .

[0029] Through the above technical scheme, one end of the wedge-shaped locking block 12 can be aligned with the center between the two groups of limiting cross bars 211, so that when the cabinet door 2 drives the limiting cross bar 211 to rotate and close, the wedge-shaped locking block 12 can squeeze the two groups of limiting cross bars 211 away from each other until the cabinet door 2 and the cabinet body 1 are completely closed. The two groups of limiting cross bars 211 are clamped on the outer surface of one end of the wedge-shaped locking block 12, and one end of the reset push block 222 is movably connected to one end of the wedge-shaped locking block 12. When the cabinet door 2 is closed, the wedge-shaped locking block 12 can squeeze the reset push block 222 to slide, driving the lifting placard 218 to rise and fall, indicating whether the cabinet door 2 is locked, which can serve as a reminder to the staff.

[0030] The limit cross bar 211 is connected to the outer surface of the winding shaft 215 through one end of the traction rope 214, and prompt switch slogans are set on the upper and lower sides of the lifting slogan board 218. One end of the limit cross bar 211 is movably abutted against one end of the wedge-shaped locking block 12.

[0031] Through the above technical scheme, the limiting cross bar 211 can be connected to the outer surface of the winding shaft 215 through one end of the traction rope 214, so that when the winding shaft 215 rotates, the two sets of traction ropes 214 can be synchronously wound and unwound, and the sliding of the limiting cross bar 211 can be controlled. Prompt switch slogans are set on the upper and lower sides of the lifting slogan board 218, so as to prompt the staff whether the cabinet door 2 is in a locked state. One end of the limiting cross bar 211 is movably abutted against one end of the wedge-shaped locking block 12, so that one end of the wedge-shaped locking block 12 can limit the two sets of limiting cross bars 211.

[0032] The working principle of the utility model is as follows: when the staff operates the high-voltage switch cabinet, the cabinet door 2 needs to be opened. When opening the cabinet door 2, the key is first inserted into the center of the lock core 216, and the key is turned to drive the reel 215 at one end to rotate, so that the reel 215 reels the traction rope 214, and the traction rope 214 will pull the two sets of limit cross bars 211 away from each other until the limit cross bar 211 is separated from the wedge-shaped lock block 12 on one side of the cabinet body 1. At the same time, when the limit cross bar 211 slides on the side of the limit plate 213, it squeezes the tension spring 212 to contract, and then pulls the cabinet door 2 to rotate on the front side of the cabinet body 1, so that the cabinet door 2 drives the self-locking component 21 away from the wedge-shaped lock block 12, and at the same time When the lock is unlocked, the reset spring 217 will squeeze the reset push block 222 to slide, and the reset push block 222 will drive the gear shaft 219 to rotate through the internal tooth groove 221, and the gear shaft 219 will drive the transmission gear 220 to rotate synchronously. When the transmission gear 220 rotates, it will drive the lifting placard 218 meshed on the outer surface to descend, so that the slogan with the word "unlocked" on the lifting placard 218 will descend and be exposed at the front edge of the cabinet door 2, thereby reminding the staff that the cabinet door 2 is not locked. Then, the external force of the key is removed, and the limit cross bar 211 will be squeezed by the tensioning spring 212, so that the two sets of limit cross bars 211 will slide close to each other on the side of the limit plate 213 to reset, and then the key is pulled out. When the staff has finished operating the cabinet door 2 inside, the staff can pull the cabinet door 2 to quickly reset and flip it until the two sets of self-locking components 21 contact the outer surface of one end of the wedge-shaped locking block 12, and under the pressure of the outer surface of the wedge-shaped locking block 12, the two sets of limiting cross bars 211 will slide away from each other again until the distance between the two sets of limiting cross bars 211 is greater than the size of one end of the wedge-shaped locking block 12, the cabinet door 2 continues to rotate, and finally the cabinet door 2 is sealed and closed. At the same time, the two sets of limiting cross bars 211 will reset again under the pressure of the tensioning spring 212, and one end of the wedge-shaped locking block 12 will limit the limiting cross bar 211, thereby achieving the purpose of self-locking, and when the cabinet door 2 When closed, one end of the wedge-shaped lock block 12 will squeeze the reset push block 222 to slide back and forth, thereby driving the gear shaft 219 to rotate in the opposite direction through the limit cross bar 211. At the same time, the gear shaft 219 will drive the lifting slogan board 218 meshingly connected to the outer surface to rise through the transmission gear 220 at one end, thereby driving the slogan with the word "locked" to rise and expose it at the front edge of the cabinet door 2. The cabinet door 2 is automatically locked when the staff is lifted up. Therefore, through the coordinated connection between the wedge-shaped lock block 12 and the self-locking component 21 inside the cabinet body 1 and the cabinet door 2, the high-voltage switch cabinet can have a self-locking function, avoiding the staff from using a key or a password lock disk to lock the high-voltage switch cabinet.

[0033] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A self-locking high-voltage switchgear, comprising: A cabinet body (1) and a cabinet door (2), wherein the cabinet door (2) is rotatably mounted on the front end surface of the cabinet body (1); The invention is characterized in that an electrical component mounting frame (11) is arranged inside the cabinet (1), and a wedge-shaped locking block (12) is arranged on one side inside the cabinet (1); A control switch (23) is provided at the upper portion of the front end surface of the cabinet door (2), a display (22) is provided at the bottom portion of the front end surface of the cabinet door (2), and a self-locking component (21) is fixedly mounted on one side edge of the front end surface of the cabinet door (2); The self-locking component (21) comprises a limit plate (213) and a lock core (216); the lock core (216) is fixedly mounted at the center of the front end surface of the limit plate (213); a winding shaft (215) is fixedly connected to the center of one inner end of the lock core (216); the rear end surface of the limit plate (213) is symmetrically slidably engaged with the limit cross bar (211); and a tensioning spring (212) is fixedly connected to the outer surface of the middle portion of the limit cross bar (211); A traction rope (214) is fixedly connected to the upper surface of the middle part of the limiting cross bar (211); a reset push block (222) is slidably engaged with an edge of one side of the rear end surface of the limiting plate (213); a tooth groove (221) is provided inside the reset push block (222); a reset spring (217) is fixedly connected to the upper and lower surfaces of the reset push block (222); a gear shaft (219) is meshedly connected to the upper surface of the tooth groove (221); a transmission gear (220) is fixedly installed on the outer surface of one end of the gear shaft (219); and a lifting placard (218) is meshedly connected to the outer surface of one end of the transmission gear (220).

2. A self-locking high-voltage switch cabinet according to claim 1, characterized in that: One end of the wedge-shaped locking block (12) is aligned with the center between the two groups of limiting cross bars (211).

3. A self-locking high-voltage switch cabinet according to claim 2, characterized in that: One end of the reset push block (222) is movably connected to one end of the wedge-shaped locking block (12).

4. A self-locking high-voltage switch cabinet according to claim 3, characterized in that: The limiting cross bar (211) is connected to the outer surface of the winding shaft (215) by winding one end of the traction rope (214).

5. A self-locking high-voltage switch cabinet according to claim 4, characterized in that: The upper and lower sides of the lifting slogan board (218) are provided with prompt switch slogans.

6. A self-locking high-voltage switch cabinet according to claim 5, characterized in that: One end of the limiting cross bar (211) is movably abutted against one end of the wedge-shaped locking block (12).

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