Power distribution cabinet door limit switch

Abstract

The utility model relates to the technical field of power distribution cabinets, and discloses a power distribution cabinet door limit switch which comprises a limit assembly, the limit assembly comprises a guide rail mounted on a cabinet door, a positioning column is slidably arranged on the guide rail, a telescopic assembly is arranged on the positioning column, and a mounting seat is hinged to the tail end of the telescopic assembly; through the telescopic assembly composed of the connecting rod, the sleeve and the locking piece, the length can be adjusted according to specific requirements, cabinet doors of different sizes can be adapted, the application range is expanded, the matching of the flexible sleeve and the arc-shaped groove and the matching of the locking piece and the sleeve guide groove ensure that the position accuracy and the structural stability can be kept even in the vibration environment and other environments, and the service life of the cabinet door is prolonged. The installation and adjustment process is simplified, the working efficiency is improved, the use safety and reliability of the power distribution cabinet are ensured, the maintenance cost and the damage risk of electrical elements are reduced, and the effects of convenient adjustment and wide application range are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power distribution cabinet, in particular to a power distribution cabinet door limit switch. BACKGROUND

[0002] In the use process of the power distribution cabinet, the cabinet door limit switch is an important part to ensure the normal opening and closing of the cabinet door and the safe operation of the power distribution cabinet. After long-term use, the limit switch is prone to looseness, wear and other problems, which leads to inaccurate limit, and further affects the normal operation of the power distribution cabinet, which needs to be adjusted by the staff.

[0003] However, the existing power distribution cabinet door limit switch often needs to be adjusted by tools, and the operation process is relatively cumbersome, not only consuming time, but also requiring certain skills of the operator, and moreover, the traditional limit switch is mostly only suitable for specific specifications and structures of the power distribution cabinet door, and for cabinet doors of different sizes and opening modes, a special limit switch often needs to be customized, which not only increases the cost, but also reduces the universality. CONTENT OF THE INVENTION

[0004] In order to solve the problems of inconvenient adjustment, narrow application range and poor stability of the existing power distribution cabinet door limit switch, the present application provides a power distribution cabinet door limit switch.

[0005] The power distribution cabinet door limit switch provided by the present application adopts the following technical scheme:

[0006] A power distribution cabinet door limit switch, comprising a limit assembly, the limit assembly comprising a guide rail mounted on the cabinet door, a positioning column being slidingly arranged on the guide rail, a telescopic assembly being arranged on the positioning column, and a mounting seat being hingedly connected to the end of the telescopic assembly.

[0007] Preferably, a sliding groove is arranged on the guide rail, and a plurality of arc-shaped grooves are arranged on the sliding groove.

[0008] Preferably, the positioning column is slidingly arranged in the sliding groove, and a flexible sleeve adapted to the arc-shaped groove is sleeved on the positioning column.

[0009] Preferably, the telescopic assembly comprises a sleeve rotatingly arranged on the positioning column, a connecting rod movably arranged on the inner side of the sleeve, and the mounting seat being hingedly connected to the end of the connecting rod.

[0010] Preferably, a threaded hole is arranged on the connecting rod, a locking piece is threadedly arranged in the threaded hole, a guide groove is arranged on the sleeve, and the locking piece is slidingly arranged in the guide groove.

[0011] In summary, the present application has the following beneficial technical effects:

[0012] By the combination of the limiting assembly, the guide rail, the sliding groove and the positioning column, simple and tool-free adjustment of the limiting position is realized. The telescopic assembly is composed of the connecting rod, the sleeve and the locking piece, supports adjustment of the length according to specific needs, adapts to cabinet doors of different sizes, expands the application range, the adaptation of the flexible sleeve and the arc-shaped groove and the cooperation of the locking piece and the sleeve guide groove ensure that the position accuracy and structural stability can be maintained even in a vibrating environment, simplify the installation and adjustment process, improve the work efficiency, also ensure the safety and reliability of the power distribution cabinet, reduce the maintenance cost and the risk of damage to electrical components. Compared with the prior art, it has the effects of convenient adjustment and wide application range. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 is a first perspective view of the embodiment of the application.

[0014] Fig. 2 is a second perspective view of the embodiment of the application.

[0015] Fig. 3 is a third perspective view of the embodiment of the application.

[0016] BRIEF DESCRIPTION OF DRAWINGS 1, mounting seat; 2, telescopic assembly; 201, connecting rod; 202, sleeve; 203, locking piece; 3, limiting assembly; 301, guide rail; 302, sliding groove; 303, arc-shaped groove; 4, flexible sleeve; 5, positioning column. DETAILED DESCRIPTION

[0017] The following will be combined with the Figs. 1-3 The application is further described in detail.

[0018] The embodiment of the application discloses a power distribution cabinet door limiting switch. Referring to Figs. 1-3 A power distribution cabinet door limiting switch mainly consists of a mounting seat 1, a telescopic assembly 2, a limiting assembly 3, a flexible sleeve 4 and a positioning column 5, realizes effective limiting of the power distribution cabinet door, and guarantees the safety and stability of the power distribution cabinet door opening and closing operation.

[0019] Referring to Fig. 1 The mounting seat 1 is made of steel or aluminum alloy material, is made by stamping or machining process, is hingedly connected with the end of the telescopic assembly 2, and can be stably installed on the cabinet body of the power distribution cabinet. The mounting seat 1 and the cabinet body of the power distribution cabinet are usually connected by bolts or other reliable fixing modes, so that the mounting seat 1 will not be loose or fall off in the long-term use process, and the limiting switch can accurately play its limiting function.

[0020] Referring to Fig. 3, telescopic assembly 2 includes sleeve 202 rotationally arranged on positioning column 5, sleeve 202 and positioning column 5 are rotationally connected through suitable bearing or bushing, which ensures that sleeve 202 can flexibly rotate around positioning column 5. The inner side of sleeve 202 movably arranges connecting rod 201, connecting rod 201 and sleeve 202 are made of high-strength alloy steel, which are manufactured through turning and heat treatment process, ensuring its strength and wear resistance. The threaded hole on connecting rod 201 and the guide groove on sleeve 202 are accurately machined, ensuring the matching precision between them.

[0021] With reference to Fig. 2 , the end of connecting rod 201 is hingedly connected with mounting base 1, so that connecting rod 201 can swing within a certain range, thereby realizing the length adjustment of telescopic assembly 2. When it is necessary to adjust the limiting position of cabinet door, the length of telescopic assembly 2 can be changed by rotating sleeve 202 or adjusting the position of connecting rod 201 in sleeve 202. Threaded hole is formed on connecting rod 201, and locking piece 203 is threadedly arranged in the threaded hole, locking piece 203 is a hand screw, such as torx hand screw, hex head cap screw, zinc-plated butterfly screw, 38 head torx hex mechanical handle screw, etc. Guide groove is arranged on sleeve 202, and locking piece 203 is slidingly arranged in the guide groove. After the length of telescopic assembly 2 is adjusted, locking piece 203 is tightened, which slides in the guide groove and tightly matches with the threaded hole, thereby fixing the relative position of connecting rod 201 and sleeve 202, ensuring that the length of telescopic assembly 2 remains stable during the opening and closing of cabinet door, and ensuring the limiting accuracy of the limiting switch.

[0022] With reference to Fig. 2 , limiting assembly 3 is the core component for realizing the limiting function of cabinet door, which includes guide rail 301 mounted on cabinet door. Guide rail 301 is made of high-strength steel or aluminum alloy material, which is manufactured through stamping or mechanical processing process, ensuring that it has sufficient strength and wear resistance, and can withstand the friction force and impact force generated when positioning column 5 slides on it. During manufacturing, the dimensional accuracy and positional accuracy of sliding groove 302 and arc-shaped groove 303 on guide rail 301 are strictly controlled, ensuring that positioning column 5 can smoothly slide in sliding groove 302, and flexible sleeve 4 can tightly fit with arc-shaped groove 303.

[0023] With reference to Fig. 2 , guide rail 301 and the cabinet door of switchgear are installed through welding, bolt connection or other reliable fixing methods, ensuring that the installation levelness and perpendicularity of guide rail 301 meet the requirements, and the fixation is firm. Such installation method ensures that guide rail 301 will not displace or deform during the opening and closing of cabinet door, providing a stable track for the sliding of positioning column 5.

[0024] With reference to Fig. 2The positioning column 5 is slidably arranged in the sliding groove 302 of the guide rail 301, is made of high-quality steel material, and is processed through turning and heat treatment process to ensure the strength and rigidity. The cooperation between the positioning column 5 and the sliding groove 302 enables the positioning column 5 to smoothly slide in the sliding groove 302 without shaking or being stuck. The flexible sleeve 4 that is adapted to the arc-shaped groove 303 is sleeved on the positioning column 5, is made of rubber or plastic material with certain elasticity and wear resistance, and is processed through injection molding or molding process. The size of the flexible sleeve 4 is accurately matched with the positioning column 5 and the arc-shaped groove 303. When the positioning column 5 slides in the sliding groove 302, the flexible sleeve 4 is tightly matched with the arc-shaped groove 303 to play a buffering and positioning role. When the cabinet door is opened or closed to a specific position, the flexible sleeve 4 is clamped with the arc-shaped groove 303 to limit the sliding of the positioning column 5, thereby realizing the limiting function of the cabinet door. The elastic design of the flexible sleeve 4 can also play a buffering role when the cabinet door is subjected to a certain impact force, thereby reducing the damage to the limiting switch and the cabinet door.

[0025] The implementation principle of the cabinet door limiting switch of the power distribution cabinet according to the embodiment of the present application is as follows:

[0026] When it is necessary to adjust the limiting position of the cabinet door of the power distribution cabinet, a tool is not needed, and the positioning column 5 only needs to be manually pushed to slide in the sliding groove 302 of the guide rail 301. Since the flexible sleeve 4 is sleeved on the positioning column 5 and is adapted to the arc-shaped groove 303 on the sliding groove 302, the flexible sleeve 4 can slide in the arc-shaped groove 303 when the positioning column 5 is pushed, thereby enabling the positioning column 5 to smoothly slide in the sliding groove 302 and adjusting the limiting position. This design enables the adjustment operation of the limiting position to be simple and convenient.

[0027] According to the requirements of cabinet doors of different sizes of power distribution cabinets, the length of the telescopic assembly 2 can be adjusted. The locking member 203 is rotated, and since the locking member 203 is threadedly connected to the threaded hole on the connecting rod 201, rotating the locking member 203 enables the locking member 203 to slide in the guide groove of the sleeve 202, thereby changing the extension length of the connecting rod 201 in the sleeve 202 and realizing the adjustment of the length of the telescopic assembly 2. After the length is adjusted to a proper length, the rotation of the locking member 203 is stopped, and the length of the telescopic assembly 2 is fixed by using the cooperation between the locking member 203 and the guide groove of the sleeve 202 to adapt to cabinet doors of different sizes.

[0028] During the operation of the power distribution cabinet, even in a vibrating environment, the matching relationship between the flexible sleeve 4 and the arc-shaped groove 303 can ensure that the position of the positioning column 5 in the sliding groove 302 is relatively stable and is not easily displaced. At the same time, the cooperation between the locking member 203 and the guide groove of the sleeve 202 can fix the length of the telescopic assembly 2 to prevent the telescopic assembly 2 from loosening or changing the length during vibration, thereby ensuring the structural stability and positional accuracy of the entire limiting switch and ensuring the reliability of the cabinet door limiting.

[0029] Finally should be explained a few points are: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the term "installation", "connected", "connection" should be broad, can be mechanical or electrical connection, but also can be two elements inside the communication, can be directly connected, "up", "down", "left", "right" and so on, only for indicating the relative position relationship, when the absolute position of the described object changes, the relative position relationship may change;

[0030] Second: the utility model discloses the embodiment in the drawing, only relate to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, under the condition of not conflicting, the same embodiment and different embodiments of the utility model can be combined with each other;

[0031] Finally: the above only for the preferred embodiment of the utility model has, and does not limit the utility model, any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

[0032] The above are the preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application, should be covered within the protection scope of the present application.

Claims

1. A power distribution cabinet door limit switch, characterized by: The application relates to a limiting assembly (3) which comprises a guide rail (301) mounted on a cabinet door, a positioning column (5) slidingly arranged on the guide rail (301), a telescopic assembly (2) arranged on the positioning column (5), and a mounting seat (1) hinged to the end of the telescopic assembly (2).

2. The power distribution cabinet door limit switch of claim 1, wherein: The guide rail (301) is provided with a sliding groove (302), and a plurality of arc-shaped grooves (303) are arranged on the sliding groove (302).

3. A power distribution cabinet door limit switch according to claim 2, wherein: The positioning column (5) is slidingly arranged in the sliding groove (302), and a flexible sleeve (4) matched with the arc-shaped grooves (303) is arranged on the positioning column (5).

4. The power distribution cabinet door limit switch of claim 3, wherein: The telescopic assembly (2) comprises a sleeve (202) rotatingly arranged on the positioning column (5), a connecting rod (201) movably arranged on the inner side of the sleeve (202), and the end of the connecting rod (201) is hinged to the mounting seat (1).

5. A power distribution cabinet door limit switch according to claim 4, wherein: A threaded hole is arranged on the connecting rod (201), a locking piece (203) is threadedly arranged in the threaded hole, a guide groove is arranged on the sleeve (202), and the locking piece (203) is slidingly arranged in the guide groove.

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