False touch prevention air switch

Abstract

The utility model discloses an anti-accidental touch air switch, which comprises a switch body and a protective cover, the protective cover is located at the front side of the switch body, the upper end of the switch body is correspondingly connected with a fixed lug, the outer wall of the fixed lug is provided with a through hole, the outer wall of the rear side of the protective cover is connected with a movable shaft, and the two ends of the movable shaft are connected with telescopic structures. The movable shaft extends into the through hole through the telescopic structure and is hinged to the fixing lug. The utility model solves the problems that a plurality of groups of air switches are usually installed in an electric brake cabinet, and the air switches are usually in an exposed state and are easy to touch by mistake, so that the switches in operation are touched by mistake, large-area power failure is caused, and the stable operation of a power grid is influenced.

Description

Technical Field

[0001] The utility model belongs to the technical field of air switches, and in particular relates to an air switch that prevents accidental contact. Background Art

[0002] Air switch, also known as air circuit breaker, is a type of circuit breaker. It is a switch that will automatically disconnect as long as the current in the circuit exceeds the rated current. Air switch is a very important electrical appliance in low-voltage distribution network and electric traction system. It integrates control and multiple protection functions. In addition to contacting and disconnecting circuits, it can also protect circuits or electrical equipment from short circuits, severe overloads and undervoltages. Air switches are generally used in conjunction with protective devices during use.

[0003] For example, the Chinese patent with application number 202320254192.3 discloses an air switch, including: a base, having a bottom plate, a terminal block arranged on the bottom plate, the terminal block is provided with a terminal slot, the terminal slot is provided with a terminal block, the terminal block is used to connect the wire, and the terminal block has a pair of clips; a switch body is installed on the bottom plate, having a mounting slot, the mounting slot is provided with a connector, the connector includes a block located in the mounting slot, a plug-in plate connecting the block, the plug-in plate is plugged between two clips, the mounting slot is open on one side close to the terminal block, and the mounting slot is open on the side away from the bottom plate; wherein, a positioning column is provided on one side of the plug-in plate, a positioning port for accommodating the positioning column is provided on the side wall of the terminal slot, a positioning recess is provided on the inner wall of the positioning port for accommodating the positioning column, and the positioning recess is located in the direction of the positioning port close to the switch body. An air switch of the utility model can conveniently install connectors to meet the needs of use.

[0004] However, there are some problems with the existing technology: however, multiple sets of air switches are usually installed in the switch cabinet, and the air switches are usually in an exposed state, which can easily cause accidental contact, thereby causing the switches in operation to be accidentally touched, causing large-scale power outages and affecting the stable operation of the power grid. Therefore, we propose an air switch that prevents accidental contact. Utility Model Content

[0005] In response to the problems existing in the above-mentioned technology, the utility model provides an anti-accidental-touch air switch, which solves the problem that multiple groups of air switches are usually installed in the electric switch cabinet, and the air switches are usually in an exposed state, which can easily cause accidental touch, thereby causing the switches in operation to be accidentally touched, causing large-scale power outages and affecting the stable operation of the power grid.

[0006] The utility model is implemented as follows: an air switch to prevent accidental contact comprises a switch body and a protective cover, wherein the protective cover is located at the front side of the switch body, a fixing ear is correspondingly connected to the upper end of the switch body, a through hole is provided on the outer wall of the fixing ear, a movable shaft is connected to the outer wall of the rear side of the protective cover, both ends of the movable shaft are connected to a telescopic structure, and the movable shaft extends into the through hole through the telescopic structure and is hinged to the fixed ear.

[0007] As a preferred embodiment of the present invention, both left and right outer walls of the switch body are provided with card slots.

[0008] As a preferred embodiment of the present invention, a threaded hole is provided inside the slot.

[0009] As a preferred embodiment of the present invention, the protective cover is made of a transparent material.

[0010] As a preferred embodiment of the utility model, the outer wall of the rear side of the protective cover is symmetrically connected with latch teeth, and the latch teeth are matched with the latch grooves.

[0011] As a preferred embodiment of the utility model, a screw shaft is provided on the outer wall of the slot, and the screw shaft passes through the locking teeth and extends into the interior of the slot to be threadedly connected with the threaded hole.

[0012] As a preferred embodiment of the utility model, the telescopic structure includes a step hole arranged on the outer wall of the movable shaft, a connecting shaft is provided outside the step hole, one end of the connecting shaft extending into the step hole is connected to a limiting block, a side of the limiting block away from the connecting shaft is connected to a spring, one end of the spring away from the limiting block is connected to the inner wall of the step hole, and the end of the connecting shaft located outside the step hole extends into the through hole.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model is convenient for protecting the switch body by setting a protective cover to prevent the switch body from being affected by foreign objects, being damaged or accidentally touched. The movable shaft connected to the protective cover is connected to the fixed ears through the telescopic structure at both ends, which facilitates the rotation of the protective cover, and is convenient for maintenance personnel to check the switch body and perform maintenance;

[0015] 2. The utility model uses a protective cover made of a transparent material, which is convenient for maintenance personnel to observe whether the switch body is opened or closed. The card teeth connected to the protective cover are inserted into the card slot, and the threaded shaft is connected to the threaded hole, which is convenient for fixing the protective cover. With the use of the telescopic structure, it is convenient to disassemble and install the protective cover;

[0016] 3. The utility model drives the limit block by contacting the outer wall of the fixed ear through the connecting shaft, and the limit block drives the spring to shrink into the stepped hole. When the stepped hole corresponds to the through hole, the spring rebounds and drives the connecting shaft to extend into the through hole, thereby realizing the hinge connection between the movable shaft and the fixed ear, which is convenient for the rotation of the protective cover and the disassembly and installation of the protective cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a three-dimensional structure provided by an embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of the switch body provided by the embodiment of the utility model;

[0019] Figure 3 It is a rear view schematic diagram of the protective cover provided by the embodiment of the utility model;

[0020] Figure 4 It is a partial cross-sectional schematic diagram of a movable shaft provided in an embodiment of the utility model.

[0021] In the figure: 1, protective cover; 2, switch body; 3, telescopic structure; 11, latch teeth; 12, screw shaft; 13, movable shaft; 21, fixing ear; 22, slot; 23, threaded hole; 31, connecting shaft; 32, step hole; 33, spring; 34, limit block; 211, through hole. DETAILED DESCRIPTION

[0022] In order to further understand the content, features and effects of the utility model, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0023] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0024] Embodiment 1:

[0025] like Figure 1 As shown, an anti-mistaken-touch air switch provided by an embodiment of the utility model comprises a switch body 2 and a protective cover 1, wherein the protective cover 1 is located at the front side of the switch body 2, and a fixed ear 21 is correspondingly connected to the upper end of the switch body 2, and a through hole 211 is provided on the outer wall of the fixed ear 21, and a movable shaft 13 is connected to the outer wall of the rear side of the protective cover 1, and telescopic structures 3 are connected at both ends of the movable shaft 13, and the movable shaft 13 extends into the through hole 211 through the telescopic structure 3 and is hinged to the fixed ear 21; the protective cover 1 is provided to facilitate the protection of the switch body 2 to prevent the switch body 2 from being affected by foreign objects, being damaged or accidentally touched, and the movable shaft 13 connected to the protective cover 1 is connected to the fixed ear 21 through the telescopic structures 3 at both ends, so that the protective cover 1 is convenient to rotate, and it is convenient for maintenance personnel to check the switch body 2 and facilitate maintenance.

[0026] like Figure 2 and Figure 3 As shown, the left and right outer walls of the switch body 2 are both provided with a slot 22; a threaded hole 23 is provided inside the slot 22; the protective cover 1 is specifically made of a transparent material; the outer wall of the rear side of the protective cover 1 is symmetrically connected with a latch tooth 11, and the latch tooth 11 fits with the slot 22; a screw shaft 12 is provided on the outer wall of the slot 22, and the screw shaft 12 penetrates the latch tooth 11 and extends into the slot 22 and is threadedly connected with the threaded hole 23; the protective cover 1 is specifically made of a transparent material, which is convenient for maintenance personnel to observe whether the switch body 2 is opened or closed, and the latch tooth 11 connected to the protective cover 1 is used to extend into the slot 22, and the threaded shaft is connected to the threaded hole 23, which is convenient for fixing the protective cover 1, and the use of the telescopic structure 3 makes it convenient to disassemble and install the protective cover 1.

[0027] like Figure 4 As shown, the telescopic structure 3 includes a stepped hole 32 arranged on the outer wall of the movable shaft 13, a connecting shaft 31 is arranged outside the stepped hole 32, one end of the connecting shaft 31 extending into the stepped hole 32 is connected to a limiting block 34, a side of the limiting block 34 away from the connecting shaft 31 is connected to a spring 33, one end of the spring 33 away from the limiting block 34 is connected to the inner wall of the stepped hole 32, and one end of the connecting shaft 31 located outside the stepped hole 32 extends into the through hole 211; the connecting shaft 31 contacts the outer wall of the fixed ear 21 to drive the limiting block 34, and the limiting block 34 drives the spring 33 to shrink into the stepped hole 32, and when the stepped hole 32 corresponds to the through hole 211, the spring 33 rebounds to drive the connecting shaft 31 to extend into the through hole 211, thereby realizing the hinge between the movable shaft 13 and the fixed ear 21, which is convenient for the rotation of the protective cover 1 and the disassembly and installation of the protective cover 1.

[0028] Working principle of embodiment 1:

[0029] When in use, first make the connecting shaft 31 contact with the outer wall of the fixing ear 21, drive the limit block 34, and the limit block 34 drives the spring 33 to shrink into the stepped hole 32. When the stepped hole 32 corresponds to the through hole 211, the spring 33 rebounds, driving the connecting shaft 31 to extend into the through hole 211, thereby realizing the hinge connection between the movable shaft 13 and the fixing ear 21, which is convenient for the protection cover 1 to rotate, so that the protection cover 1 contacts the outer wall of the front side of the switch body 2, and the latch tooth 11 extends into the latch groove 22. The threaded shaft is connected to the threaded hole 23, which is convenient for fixing the protection cover 1, thereby realizing that the protection cover 1 protects the switch body 2 to avoid power outages caused by accidental contact.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air switch for preventing accidental contact, comprising a switch body (2) and a protective cover (1), characterized in that: The protective cover (1) is located at the front side of the switch body (2); the upper end of the switch body (2) is correspondingly connected to a fixing ear (21); the outer wall of the fixing ear (21) is provided with a through hole (211); the outer wall of the rear side of the protective cover (1) is connected to a movable shaft (13); both ends of the movable shaft (13) are connected to a telescopic structure (3); the movable shaft (13) extends into the through hole (211) through the telescopic structure (3) and is hinged to the fixing ear (21).

2. The anti-accidental-touch air switch according to claim 1, characterized in that: The outer walls on the left and right sides of the switch body (2) are both provided with clamping grooves (22).

3. The anti-accidental-touch air switch according to claim 2, characterized in that: A threaded hole (23) is provided inside the clamping slot (22).

4. The anti-accidental-touch air switch according to claim 1, characterized in that: The protective cover (1) is specifically made of a transparent material.

5. The anti-accidental-touch air switch according to claim 4, characterized in that: The rear outer wall of the protective cover (1) is symmetrically connected with latch teeth (11), and the latch teeth (11) fit into the latch groove (22).

6. The anti-accidental-touch air switch according to claim 5, characterized in that: The outer wall of the clamping groove (22) is provided with a screw shaft (12), and the screw shaft (12) penetrates through the clamping teeth (11) and extends into the interior of the clamping groove (22) to be threadedly connected with the threaded hole (23).

7. The anti-accidental-touch air switch according to claim 1, characterized in that: The telescopic structure (3) comprises a stepped hole (32) arranged on the outer wall of the movable shaft (13); a connecting shaft (31) is arranged outside the stepped hole (32); one end of the connecting shaft (31) extending into the stepped hole (32) is connected to a limiting block (34); a side of the limiting block (34) away from the connecting shaft (31) is connected to a spring (33); one end of the spring (33) away from the limiting block (34) is connected to the inner wall of the stepped hole (32); and one end of the connecting shaft (31) located outside the stepped hole (32) extends into the through hole (211).

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