A direct handle for low voltage switch

Abstract

The utility model discloses a direct handle for a low-voltage switch, and relates to the technical field of low-voltage switches, including a base, a control handle installed on the inner wall of the base, and a limit mechanism installed on the inner wall of the control handle. The utility model sets a limit mechanism, and when the control handle is rotated to a specified position, the top plate is pushed to move by a reset spring, and the slider is pressed down, so that the limit shaft is engaged and fixed with the card slot on the inner wall of the base, thereby limiting and fixing the control handle, and preventing the staff from accidentally touching the control handle, causing the power supply to suddenly start and close abnormally, causing an electric shock accident; through the set fixing ring and sealing sleeve, the sealing sleeve is fixed by sleeve-connecting the sealing sleeve to the outer wall of the base, and then being threadedly connected to the base through the fixing ring, so as to facilitate the disassembly, assembly and replacement of the sealing sleeve, and the setting of the sealing sleeve can seal the gap at the connection between the base and the electrical cabinet, and prevent water from entering the electrical cabinet, thereby increasing the sealing performance of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage switches, in particular to a direct handle for a low-voltage switch. Background Art

[0002] The low-voltage switch is a commonly used electrical component and a protective device. It is mainly used in electrical cabinets. The voltage is turned on and off and reset by rotating the control handle above the low-voltage switch. However, the existing direct handle of the low-voltage switch is not provided with a limit position component when in use. When maintenance personnel perform maintenance by turning off the power, they may accidentally touch the handle, causing the power to suddenly turn on and cause an electric shock accident. In addition, the existing low-voltage switch has a gap at the connection with the electrical cabinet, which is easy to get water in, causing damage to internal components. In order to solve the above problems, a direct handle for a low-voltage switch is needed.

[0003] The existing direct handle for low-voltage switch has the problem that it cannot perform limit protection and waterproof protection during operation. Therefore, a direct handle for low-voltage switch is urgently needed. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a direct handle for a low-voltage switch to solve the problem that the existing direct handle for a low-voltage switch cannot perform limit protection and waterproof protection when in use.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a direct handle for a low-voltage switch, comprising a base, and a control handle is installed on the inner wall of the base.

[0006] A limiting mechanism is installed on the inner wall of the control handle.

[0007] A fixing ring is installed on the outer wall of the base, and a sealing sleeve is installed on the bottom of the fixing ring.

[0008] Preferably, the limiting mechanism includes a fixed plate, a limiting rod, a return spring, a top plate, a slider, a limiting shaft and a limiting spring. A fixed plate is welded to the inner wall of the control handle, a limiting rod is installed on the inner wall of the fixed plate, a return spring is installed on the outer wall of the limiting rod, a top plate is installed on the outer wall of the return spring, a slider is installed on the outer side wall of the top plate, a limiting shaft is installed on the bottom of the slider, and a limiting spring is installed on the outer wall of the limiting shaft.

[0009] Preferably, the top plate forms a telescopic structure through a return spring and a limit rod, and the top plate is movably connected to the control handle.

[0010] Preferably, the top plate fits tightly with the slider, and the slider forms a telescopic structure with a control handle via a limit spring.

[0011] Preferably, the fixing ring is threadedly connected to the base, and the sealing sleeve is sleeved on the base.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model provides a limit mechanism. When the control handle is rotated to a specified position, the top plate is pushed to move by a reset spring, and the slider is pressed down, so that the limit shaft is engaged and fixed with the card slot on the inner wall of the base, thereby limiting and fixing the control handle, preventing the operator from accidentally touching the control handle, causing the power supply to suddenly start and stop abnormally, and causing electric shock accidents.

[0014] The utility model provides a fixing ring and a sealing sleeve, and fixes the sealing sleeve by sleeve-connecting the sealing sleeve to the outer wall of the base and then threading the sealing sleeve with the base through the fixing ring, so as to facilitate the disassembly, assembly and replacement of the sealing sleeve. The setting of the sealing sleeve can seal the gap at the connection between the base and the electrical cabinet, so as to prevent water from entering the electrical cabinet and increase the sealing performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model from the front;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model from the front;

[0017] Figure 3 This is a schematic diagram showing the structure of the internal components of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the limiting mechanism of the utility model.

[0019] In the figure: 1. base; 2. control handle; 3. limit mechanism; 301. fixed plate; 302. limit rod; 303. return spring; 304. top plate; 305. slider; 306. limit shaft; 307. limit spring; 4. fixed ring; 5. sealing sleeve. DETAILED DESCRIPTION

[0020] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0021] The following describes an embodiment of the utility model based on its overall structure.

[0022] See also Figure 1-4 A direct handle for a low-voltage switch comprises a base 1, and a control handle 2 is installed on the inner wall of the base 1.

[0023] See also Figure 1-4 A direct handle for a low-voltage switch, a limit mechanism 3 is installed on the inner wall of the control handle 2, the limit mechanism 3 includes a fixed plate 301, a limit rod 302, a reset spring 303, a top plate 304, a slider 305, a limit shaft 306 and a limit spring 307, a fixed plate 301 is welded on the inner wall of the control handle 2, a limit rod 302 is installed on the inner wall of the fixed plate 301, a reset spring 303 is installed on the outer wall of the limit rod 302, a top plate 304 is installed on the outer wall of the reset spring 303, a slider 305 is installed on the outer wall side wall of the top plate 304, a limit shaft 306 is installed on the bottom of the slider 305, and a limit spring 307 is installed on the outer wall of the limit shaft 306 07. The top plate 304 forms a telescopic structure with the limit rod 302 through the return spring 303. The top plate 304 is movably connected to the control handle 2. The top plate 304 fits tightly with the slider 305. The slider 305 forms a telescopic structure with the control handle 2 through the limit spring 307. Through the set limit mechanism 3, when the control handle 2 is rotated to the specified position, the top plate 304 is pushed to move by the return spring 303, and the slider 305 is pressed down, so that the limit shaft 306 is engaged and fixed with the groove on the inner wall of the base 1, thereby limiting and fixing the control handle 2 to prevent the staff from accidentally touching the control handle 2, resulting in sudden abnormal opening and closing of the power supply, causing electric shock accidents.

[0024] See also Figure 1-4 A direct handle for a low-voltage switch, a fixing ring 4 is installed on the outer wall of the base 1, a sealing sleeve 5 is installed on the bottom of the fixing ring 4, the fixing ring 4 is threadedly connected to the base 1, and the sealing sleeve 5 is sleeved on the base 1. Through the setting of the fixing ring 4 and the sealing sleeve 5, the sealing sleeve 5 is sleeved on the outer wall of the base 1, and then threadedly connected to the base 1 through the fixing ring 4, the sealing sleeve 5 is fixed, which is convenient for disassembly, assembly and replacement of the sealing sleeve 5. The setting of the sealing sleeve 5 can seal the gap at the connection between the base 1 and the electrical cabinet, prevent water from entering the electrical cabinet, and increase the sealing performance of the device.

[0025] Working principle: When in use, first move the device to the desired position, then sleeve the sealing sleeve 5 on the outer wall of the base 1, then thread the fixing ring 4 to the base 1, squeeze and fix the sealing sleeve 5, which is convenient for disassembly and replacement, and seal the connection between the base 1 and the electrical cabinet to prevent water from entering the electrical cabinet, and then release the locking state of the limit shaft 306 and the base 1 by sliding the top plate 304, and then rotate the control handle 2 to control the opening and closing or resetting of the power supply according to the use requirements. When maintenance is required, rotate the control handle 2 to the appropriate position. The top plate 304 is pushed by the elastic force of the return spring 303, pressing the slider 305 downward, so that the limit shaft 306 is engaged and fixed with the groove on the inner wall of the base 1, to prevent the staff from accidentally touching the control handle 2 during power outage maintenance, causing the power to suddenly turn on abnormally and cause electric shock accidents. Finally, when the control handle 2 is fixed by the limit shaft 306, maintenance can be carried out, thus completing the use of the device. The content not described in detail in this manual belongs to the existing technology known to professional and technical personnel in this field.

[0026] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A direct handle for a low-voltage switch, comprising a base (1), characterized in that: A control handle (2) is installed on the inner wall of the base (1); A limiting mechanism (3) is installed on the inner wall of the control handle (2); A fixing ring (4) is installed on the outer wall of the base (1), and a sealing sleeve (5) is installed on the bottom of the fixing ring (4).

2. A direct handle for a low-voltage switch according to claim 1, characterized in that: The limiting mechanism (3) comprises a fixing plate (301), a limiting rod (302), a return spring (303), a top plate (304), a slider (305), a limiting shaft (306) and a limiting spring (307); the fixing plate (301) is welded to the inner wall of the control handle (2); the limiting rod (302) is mounted on the inner wall of the fixing plate (301); the return spring (303) is mounted on the outer wall of the limiting rod (302); the top plate (304) is mounted on the outer wall of the return spring (303); the slider (305) is mounted on the outer side wall of the top plate (304); the limiting shaft (306) is mounted on the bottom of the slider (305); and the limiting spring (307) is mounted on the outer wall of the limiting shaft (306).

3. A direct handle for a low voltage switch according to claim 2, characterized in that: The top plate (304) forms a telescopic structure with the return spring (303) and the limit rod (302), and the top plate (304) is movably connected to the control handle (2).

4. A direct handle for a low voltage switch according to claim 2, characterized in that: The top plate (304) is tightly fitted with the slider (305), and the slider (305) forms a telescopic structure with the control handle (2) via a limit spring (307).

5. The direct handle for a low-voltage switch according to claim 1, characterized in that: The fixing ring (4) is threadedly connected to the base (1), and the sealing sleeve (5) is sleeved on the base (1).

Images