High-voltage switch cabinet door structure convenient to maintain

Abstract

The utility model discloses a high-voltage switch cabinet door structure convenient to maintain, which comprises a cabinet door positioned on one side of a high-voltage switch cabinet body, a sealing strip is arranged on the periphery of one side, positioned on the high-voltage switch cabinet body, of the cabinet door, and a dismounting assembly is arranged between the cabinet door and the sealing strip; wherein the cabinet door is connected with and detached from the sealing strip through the detaching assembly. According to the utility model, through the arrangement of the dismounting assembly, the traditional bolt fixing mode is changed, so that the connection and dismounting between the cabinet door and the sealing strip are more convenient and faster, the time and labor cost required by maintenance are greatly reduced, and the working efficiency is improved. A reset spring in the accommodating cavity and the inclined surface design of a limiting plate enable the positioning bolt rod to elastically move and accurately position, and the connection strength between the cabinet door and the sealing strip is further enhanced by matching the inclined surface at the front end of the fixing bolt rod and the matching of an external thread and an internal thread of a connecting inner groove; and the sealing performance and the stability of the high-voltage switch cabinet in the operation process are ensured.

Description

Technical Field

[0001] This utility model relates to a cabinet door structure for high-voltage switchgear that is easy to maintain. Background Technology

[0002] High-voltage switchgear plays a vital role in power systems, and the performance of its cabinet door structure directly affects the operational safety and ease of maintenance of the equipment.

[0003] The existing connection method between the cabinet door and the sealing strip of high-voltage switchgear is relatively complicated, usually using bolt fixing or other cumbersome connection methods, which to some extent increases the difficulty and time cost of maintenance.

[0004] When the cabinet door or sealing strip needs to be inspected or replaced, workers need to spend a lot of time disassembling and installing them, which not only reduces work efficiency but may also damage the cabinet door or sealing strip due to improper operation, thereby affecting the sealing performance and overall safety of the high-voltage switchgear. Therefore, a high-voltage switchgear cabinet door structure that is easy to maintain is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a high-voltage switchgear cabinet door structure that is easy to maintain, so as to solve the problem mentioned in the background art that the connection between the existing high-voltage switchgear cabinet door and the sealing strip is relatively complicated and the efficiency of the sealing strip is low when it is inspected and replaced.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a high-voltage switchgear cabinet door structure that is easy to maintain, including a cabinet door located on one side of the high-voltage switchgear body, wherein a sealing strip is provided around the cabinet door on one side of the high-voltage switchgear body, and a disassembly and assembly assembly is provided between the cabinet door and the sealing strip.

[0007] The cabinet door is connected to and disassembled with the sealing strip via a disassembly assembly.

[0008] Preferably, the disassembly and assembly assembly includes a connecting guide rail located on the side of the cabinet door. The connecting guide rail has a connecting inner groove in the middle. Multiple sets of receiving cavities are opened on both sides of the connecting inner groove. A positioning bolt is slidably connected inside the receiving cavity. A limit plate is provided on the side of the positioning bolt closer to the connecting inner groove. Guide support plates that cooperate with guide grooves are provided on both sides of the limit plate. A positioning cap is provided on the side of the positioning bolt away from the limit plate.

[0009] Preferably, the receiving cavity has a channel for the movement of the positioning cap on the side away from the connecting inner groove.

[0010] Preferably, a return spring is provided inside the receiving cavity, and the return spring is located on the outer periphery of the positioning bolt, so that the positioning bolt can move elastically inside the receiving cavity through the limiting plate.

[0011] Preferably, multiple sets of the receiving cavities are arranged at intervals along the connecting inner groove, and the receiving cavities and the connecting inner groove are interconnected.

[0012] Preferably, the receiving cavity is provided with two sets of guide grooves on one side of the connecting inner groove, and the guide grooves are provided with limit baffles on the side of the receiving cavity.

[0013] Preferably, the limiting plate is located on the inlet side of the connecting inner groove and is set at an angle of 65°.

[0014] Preferably, a fixing rod is inserted into the inner groove of the connecting groove, the front ends of the fixing rod are inclined, and the tail end of the fixing rod is provided with a rotating support rod.

[0015] Preferably, the outer periphery of the front end of the fixing bolt is provided with an external thread, and the inner wall side of the tail end of the connecting inner groove is provided with an internal thread that mates with the external thread.

[0016] Preferably, the inner wall of the sealing strip is provided with a groove that mates with the connecting guide rail, and the inner wall of the groove is provided with a positioning groove that mates with the positioning cap.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This utility model, through its designed disassembly and assembly components, changes the traditional bolt-fixing method, making the connection and disassembly between the cabinet door and the sealing strip more convenient and quick, greatly reducing the time and labor costs required for maintenance, and improving work efficiency.

[0019] The return spring inside the cavity and the beveled design of the limiting plate allow the positioning bolt to move elastically and be accurately positioned. Combined with the beveled front end and external thread of the fixing bolt and the internal thread of the connecting groove, the connection strength between the cabinet door and the sealing strip is further enhanced, ensuring the sealing and stability of the high-voltage switchgear during operation.

[0020] The groove and positioning groove design on the inner wall of the sealing strip fits tightly with the connecting guide rail and positioning cap, making the installation of the sealing strip more secure, ensuring good sealing effect, effectively preventing external dust, moisture and other substances from entering the high-voltage switchgear, and ensuring the safe operation of electrical equipment.

[0021] With a reasonable overall structural design and the cooperation between various components, it not only realizes the convenient connection and disassembly of the cabinet door and the sealing strip, but also improves the reliability and durability of the high-voltage switchgear cabinet door structure. It has good market application prospects and promotion value, and can meet the requirements of modern power systems for the efficient and stable operation of high-voltage switchgear. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0023] Figure 2 This is an enlarged schematic diagram of the structure at point A in an embodiment of this utility model;

[0024] Figure 3 This is a schematic diagram of the assembly structure of an embodiment of the present utility model;

[0025] Figure 4 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0026] Figure 5 This is an enlarged schematic diagram of the structure at point B in an embodiment of this utility model;

[0027] Figure 6 This is a schematic diagram of the positioning bolt structure according to an embodiment of the present utility model;

[0028] Figure 7 This is a schematic diagram of the sealing strip structure according to an embodiment of the present utility model;

[0029] Figure 8 This is a schematic diagram of the fixing bolt structure according to an embodiment of the present utility model;

[0030] Figure 9 This is an enlarged schematic diagram of the structure at point C in an embodiment of this utility model.

[0031] In the diagram: 1. Cabinet door; 2. Sealing strip; 201. Slide groove; 202. Positioning groove; 3. Assembly / disassembly assembly; 301. Connecting guide rail; 3011. Connecting inner groove; 3012. Receiving cavity; 3013. Channel; 3014. Guide slide groove; 3015. Limiting baffle; 3016. Internal thread; 302. Positioning bolt; 303. Limiting plate; 3031. Guide support plate; 304. Positioning cap; 305. Return spring; 306. Fixing bolt; 3061. Rotating support rod; 3062. External thread. Detailed Implementation

[0032] To address the problems of complex connection methods between existing high-voltage switchgear doors and sealing strips, and low efficiency in inspecting and replacing sealing strips, this utility model provides a high-voltage switchgear door structure that is easy to maintain. The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0033] Please see Figure 1-9 This utility model provides a high-voltage switchgear cabinet door structure that is easy to maintain, including a cabinet door 1 located on one side of the high-voltage switchgear body. The cabinet door 1 is provided with sealing strips 2 around one side of the high-voltage switchgear body. A disassembly assembly 3 is provided between the cabinet door 1 and the sealing strips 2. The disassembly assembly 3 includes a connecting guide rail 301 located on the side of the cabinet door 1. A connecting inner groove 3011 is opened in the middle of the connecting guide rail 301. Multiple sets of receiving cavities 3012 are opened on both sides of the connecting inner groove 3011. A positioning bolt 302 is slidably connected inside the receiving cavity 3012. A limit plate 303 is provided on the side of the positioning bolt 302 that is closer to the connecting inner groove 3011. Guide support plates 3031 that cooperate with guide slides 3014 are provided on both sides of the limit plate 303. A positioning cap 304 is provided on the side of the positioning bolt 302 that is away from the limit plate 303. The receiving cavity 3012 has a channel 3013 for the movement of the positioning cap 304 on the side away from the connecting inner groove 3011. A return spring 305 is installed inside the receiving cavity 3012, and the return spring 305 is located on the outer periphery of the positioning bolt 302, allowing the positioning bolt 302 to move elastically within the receiving cavity 3012 via the limiting plate 303. Multiple sets of receiving cavities 3012 are spaced apart along the connecting inner groove 3011, and the receiving cavities 3012 and the connecting inner groove 3011 are interconnected. Two sets of guide grooves 3014 are provided on one side of the receiving cavity 3012 located in the connecting inner groove 3011, and a limiting baffle 3015 is provided on the side of the receiving cavity 3012. The limiting plate 303 is located on the inlet side of the connecting inner groove 3011 and is inclined at an angle of 65°. A fixing rod 306 is inserted into the inner groove 3011. The front ends of the fixing rod 306 are inclined, and a rotating support rod 3061 is provided at the rear end of the fixing rod 306. The outer periphery of the front end of the fixing rod 306 is provided with an external thread 3062, and the inner wall of the rear end of the inner groove 3011 is provided with an internal thread 3016 that mates with the external thread 3062.

[0034] The inner wall of the sealing strip 2 is provided with a groove 201 that mates with the connecting guide rail 301, and a positioning groove 202 that mates with the positioning cap 304 is provided on the inner wall of the groove 201.

[0035] The cabinet door 1 is connected to and disassembled with the sealing strip 2 via the disassembly assembly 3.

[0036] The working principle of the high-voltage switchgear cabinet door structure provided by this utility model is as follows: The inner side wall of the sealing strip 2 is aligned with the connecting guide rail 301 around one side of the cabinet door 1, so that the sliding groove 201 of the inner side wall of the sealing strip 2 is aligned with the connecting guide rail 301. Then the sealing strip 2 is pushed along the direction of the connecting guide rail 301, so that the sliding groove 201 is fitted on the outside of the connecting guide rail 301.

[0037] When the sealing strip 2 is fitted to the end of the connecting guide rail 301, the positioning groove 202 on the inner side wall of the sealing strip 2 corresponds to the positioning cap 304. At this time, the front end of the fixing rod 306 is inserted into the connecting inner groove 3011, so that the inclined surfaces on both sides of its front end cooperate with the inclined surfaces of the limiting plate 303 in the connecting inner groove 3011. This allows the fixing rod 306 to abut against the positioning rod 302 on both sides through the inclined surfaces. The positioning rod 302 is subjected to force and the limiting plate 303 compresses the return spring 305. The return spring 305 is compressed until the positioning cap 304 is pushed out from the channel 3013 and inserted into the positioning groove 202 of the sealing strip 2, thus fixing the sealing strip 2 to the outer periphery of the connecting guide rail 301.

[0038] When the fixing rod 306 is inserted into the end of the connecting inner groove 3011, the fixing rod 306 is rotated by rotating the support rod 3061. The fixing rod 306 engages with the internal thread 3016 of the connecting inner groove 3011 through the external thread 3062, fixing the position of the fixing rod 306. Tightening the fixing rod 306 further fixes the sealing strip 2, ensuring that the sealing strip 2 is firmly connected to the cabinet door 1.

[0039] When the sealing strip 2 needs to be repaired or replaced, first rotate the support rod 3061 in the opposite direction to make the fixing rod 306 disengage from the internal thread 3016 of the connecting inner groove 3011. Then, pull the fixing rod 306 out of the connecting inner groove 3011. At the same time, the return spring 305 elastically elongates, driving the limiting plate 303 through the guide support plate 3031 into the guide slide groove 3014. The connecting positioning cap 304 moves out of the positioning groove 202, releasing the positioning effect of the positioning rod 302 on the sealing strip 2. Finally, the sealing strip 2 can be removed from the connecting guide rail 301 to complete the disassembly.

[0040] 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 high-voltage switchgear cabinet door structure that is easy to maintain, characterized in that: The system includes a cabinet door (1) located on one side of the high-voltage switchgear body. The cabinet door (1) is surrounded by a sealing strip (2) on one side of the high-voltage switchgear body. A disassembly assembly (3) is provided between the cabinet door (1) and the sealing strip (2). The disassembly assembly (3) includes a connecting guide rail (301) located on the side of the cabinet door (1). A connecting inner groove (3011) is provided in the middle of the connecting guide rail (3011). Multiple sets of receiving cavities (3012) are provided on both sides of the connecting inner groove (3011). A positioning bolt (302) is slidably connected inside the receiving cavity (3012). A limit plate (303) is provided on the side of the positioning bolt (302) closer to the connecting inner groove (3011). A guide support plate (3031) that cooperates with the guide slide (3014) is provided on both sides of the limit plate (303). A positioning cap (304) is provided on the side of the positioning bolt (302) away from the limit plate (303). The limiting plate (303) is located on the inlet side of the connecting inner groove (3011) and is set at an angle of 65°. A fixing rod (306) is inserted into the inner groove (3011). The front ends of the fixing rod (306) are inclined, and a rotating support rod (3061) is provided at the tail end of the fixing rod (306). The front end of the fixing bolt (306) is provided with an external thread (3062), and the inner wall of the tail end of the connecting inner groove (3011) is provided with an internal thread (3016) that mates with the external thread (3062). The cabinet door (1) is connected to and disassembled with the sealing strip (2) through the disassembly assembly (3).

2. The easy-to-maintain high-voltage switchgear cabinet door structure according to claim 1, characterized in that: The receiving cavity (3012) has a channel (3013) on the side away from the connecting inner groove (3011) for the movement of the positioning cap (304).

3. The easy-to-maintain high-voltage switchgear cabinet door structure according to claim 2, characterized in that: A return spring (305) is provided inside the receiving cavity (3012), and the return spring (305) is located on the outer periphery of the positioning bolt (302) so that the positioning bolt (302) can move elastically inside the receiving cavity (3012) through the limiting plate (303).

4. The easy-to-maintain high-voltage switchgear cabinet door structure according to claim 3, characterized in that: Multiple sets of the receiving cavities (3012) are arranged at intervals along the connecting inner groove (3011), and the receiving cavities (3012) and the connecting inner groove (3011) are interconnected.

5. The easy-to-maintain high-voltage switchgear cabinet door structure according to claim 4, characterized in that: The receiving cavity (3012) is provided with two sets of guide slides (3014) on one side of the connecting inner groove (3011), and the guide slides (3014) are provided with limit baffles (3015) on the side of the receiving cavity (3012).

6. The easy-to-maintain high-voltage switchgear cabinet door structure according to claim 5, characterized in that: The inner wall of the sealing strip (2) is provided with a groove (201) that cooperates with the connecting guide rail (301), and a positioning groove (202) that cooperates with the positioning cap (304) is provided on the inner wall of the groove (201).

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