Change-over switch convenient to disassemble

Abstract

The utility model discloses a change-over switch convenient to disassemble, and relates to the technical field of electrical equipment. The lettering device comprises a mounting panel and a lettering panel, the lettering panel is clamped in the mounting panel, a positioning cylinder is arranged at the center position in the mounting panel, self-locking buckles are oppositely arranged on the positioning cylinder, a positioning round hole is formed in the position, corresponding to the positioning cylinder, of the lettering panel, clamping lock catches are oppositely arranged on the side wall of an inner ring of the positioning round hole, and the self-locking buckles are clamped in the clamping lock catches. The position of the clamping lock catch corresponds to the position of the self-locking buckle, and after the printing panel is clamped on the mounting panel, the self-locking buckle is correspondingly clamped on the clamping lock catch. In the process of installing the lettering panel, when the self-locking buckle of the installing panel is in contact with the central circular hole structure of the lettering panel, the self-locking buckle can elastically deform inwards due to extrusion. The device is reliable in connection, convenient to mount and dismount, high in maintenance efficiency and capable of protecting the appearance of the lettering panel, and has remarkable practicability.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and in particular to a changeover switch that is easy to disassemble. Background Technology

[0002] In electrical equipment, changeover switches are commonly used to switch circuits and control functions. For some small devices with limited space on the control panel, a compact changeover switch with an easy-to-install and remove printed panels is needed to meet the functional requirements and aesthetic marking requirements of the equipment. Existing changeover switches are difficult to remove from the mounting panel, often requiring tools, but using tools can easily scratch the printed panel. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides an easily detachable changeover switch, which solves the problem that the connection between the printed panel and the mounting panel of existing changeover switches is not easy to disassemble.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A removable changeover switch includes a mounting panel and a printed panel. The printed panel is snapped into the mounting panel. A positioning cylinder is located at the center of the mounting panel, and a self-locking buckle is provided on the positioning cylinder. A positioning hole is provided on the printed panel corresponding to the position of the positioning cylinder. A locking buckle is provided on the inner side wall of the positioning hole, and the position of the locking buckle corresponds to the position of the self-locking buckle. After the printed panel is snapped into the mounting panel, the self-locking buckle is engaged with the locking buckle.

[0006] The outer side wall of the positioning cylinder is provided with a positioning groove that is opposite to and vertically opened, and the inner side wall of the positioning hole is provided with a positioning protrusion corresponding to the position of the positioning groove. The positioning protrusion and the positioning groove are slidably connected.

[0007] The mounting panel has two opposing assisted springs on either side of the positioning cylinder. The assisted springs are inclined from the inside out and from bottom to top on both sides of the positioning cylinder. The lower end of the assisted spring is fixedly connected to the mounting panel, while the higher end is left unattended. When the printing panel is engaged with the mounting panel, the higher end of the assisted spring abuts against the bottom surface of the printing panel.

[0008] The high end of the assist spring is provided with an assist protrusion.

[0009] The self-locking latches are located on the diagonal of the mounting panel.

[0010] The positioning groove deflection self-locking buckle is set at 90°.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, during the installation of the printed panel, when the self-locking buckle of the installation panel contacts the central circular hole structure of the printed panel, it will elastically deform inward due to compression. After the printed panel is precisely lowered to the bottom of the positioning cylinder, the self-locking buckle instantly returns to its initial shape and securely engages with the locking buckle of the printed panel. This engagement method forms a tight and stable connection, ensuring reliable engagement.

[0013] When assembling the printing panel, the positioning protrusion and the positioning groove fit tightly together. The positioning protrusion slides smoothly along the positioning groove, providing an extremely precise guide path for the installation operation and effectively avoiding functional abnormalities such as structural loosening and poor contact caused by installation deviation.

[0014] During installation, the assist spring acts as a buffer and auxiliary positioning element, while providing an upward reaction force during disassembly. This greatly reduces the difficulty of installing and disassembling the lettering panel, improves maintenance efficiency, and reduces the risk of damage to components due to improper installation and disassembly. When disassembling the lettering panel, the disassembly tool is placed at the bottom of the assist spring, and the assisting protrusion on the assist spring directly contacts the lettering panel, ensuring that the lettering panel will not be scratched by tools such as screwdrivers, and will not cause damage to the appearance of the lettering panel. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the printed character panel structure in this utility model;

[0016] Figure 2 This is a schematic diagram of the mounting panel structure in this utility model;

[0017] Figure 3 This is a schematic diagram of the assembly structure of the printing panel and the mounting panel of this utility model. Figure 1 ;

[0018] Figure 4 This is a cross-sectional view along the AA direction before the printing panel and the mounting panel are assembled in this utility model.

[0019] Figure 5 This is a cross-sectional view along the AA direction after the printing panel and the mounting panel are assembled in this utility model.

[0020] In the diagram: 1. Printing panel; 101. Locking buckle; 102. Positioning protrusion; 2. Mounting panel; 201. Self-locking buckle; 202. Assist spring; 203. Positioning cylinder; 204. Positioning groove; 205. Assisting protrusion. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0022] A removable changeover switch includes a mounting panel 2 and a printed panel 1. The printed panel 1 is snapped into the mounting panel 2. A positioning cylinder 203 is located at the center of the mounting panel 2, and a self-locking buckle 201 is positioned opposite the positioning cylinder 203. A positioning hole is formed on the printed panel 1 corresponding to the positioning cylinder 203, and a locking buckle 101 is positioned on the inner sidewall of the positioning hole. The locking buckle 101 corresponds to the position of the self-locking buckle 201. After the printed panel 1 is snapped into the mounting panel 2, the self-locking buckle 201 engages with the locking buckle 101. During the installation of the printed panel 1, when the self-locking buckle 201 of the mounting panel 2 contacts the central hole of the printed panel 1, it elastically deforms inward due to pressure. After the printed panel 1 is precisely lowered to the bottom of the positioning cylinder 203, the self-locking buckle 201 instantly returns to its initial shape and securely engages with the locking buckle 101 of the printed panel 1. This snap-fit ​​method creates a tight and stable connection, ensuring reliable fastening.

[0023] The outer side wall of the positioning cylinder 203 is provided with a positioning groove 204 facing each other and vertically. The inner side wall of the positioning hole is provided with a positioning protrusion 102 corresponding to the position of the positioning groove 204. The positioning protrusion 102 and the positioning groove 204 are slidably connected. When assembling the printing panel 1, the positioning protrusion 102 and the positioning groove 204 are tightly fitted. The positioning protrusion 102 slides smoothly along the positioning groove 204, providing an extremely precise guide path for the installation operation and effectively avoiding functional abnormalities such as structural loosening and poor contact caused by installation deviation.

[0024] The mounting panel 2 has two opposing assisted spring clips 202 on either side of the positioning cylinder 203. These spring clips 202 are angled upwards and outwards on both sides of the positioning cylinder 203. The lower end of each assisted spring clip 202 is fixedly connected to the mounting panel 2, while the higher end remains unattached. When the printing panel 1 is engaged with the mounting panel 2, the higher end of the assisted spring clip 202 abuts against the bottom surface of the printing panel 1. During installation, the assisted spring clips 202 provide cushioning and auxiliary positioning, and during disassembly, they provide an upward reaction force, significantly reducing the difficulty of installing and disassembling the printing panel 1, improving maintenance efficiency, and reducing the risk of damage to components due to improper installation or disassembly.

[0025] The high end of the assist spring 202 is provided with an assist protrusion 205. When disassembling the printed panel 1, the disassembly tool is placed at the bottom of the assist spring 202, and the assist protrusion 205 on the assist spring 202 directly contacts the printed panel 1, which can ensure that the printed panel 1 will not be scratched by tools such as screwdrivers and will not cause damage to the appearance of the printed panel 1.

[0026] The self-locking buckle 201 is located on the diagonal of the mounting panel 2.

[0027] The positioning groove 204 is set at a 90° angle to deflect the self-locking buckle 201, which optimizes the mechanical properties of the structure and further enhances the stability and reliability of the overall structure.

[0028] When the printed panel 1 is assembled in the mounting panel 2, the positioning hole in the center of the printed panel 1 passes through the positioning cylinder 203 of the mounting panel 2. When the printed panel 1 is assembled downwards, the self-locking buckle 201 of the mounting panel 2 is deformed inwards due to the pressure of the edge of the center hole of the printed panel 1. When the printed panel 1 is assembled to the bottom of the positioning cylinder 203, the self-locking buckle 201 is deformed and returns to its original shape, and is locked on the locking buckle 101 of the printed panel 1, thus fixing the printed panel 1 to the mounting panel 2.

[0029] When it is necessary to remove the printed panel 1, use a tool or your fingers to press the self-locking buckle 201 of the mounting panel 2 inward. When the outer diameter of the self-locking buckle 201 after deformation is smaller than the diameter of the positioning hole of the printed panel 1, the printed panel 1 will open under the reaction force of the assisting spring 202. Alternatively, the disassembly tool can be placed at the bottom of the assisting spring 202, and the assisting protrusion 205 on the assisting spring 202 can directly contact the printed panel 1. This ensures that the printed panel 1 will not be scratched by tools such as screwdrivers, and will not cause damage to the appearance of the printed panel 1.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A removable changeover switch, comprising a mounting panel (2) and a printing panel (1), wherein the printing panel (1) is snapped into the mounting panel (2), characterized in that: The mounting panel (2) has a positioning cylinder (203) at its center. A self-locking buckle (201) is provided on the positioning cylinder (203). The printing panel (1) has a positioning hole at the position corresponding to the positioning cylinder (203). A locking buckle (101) is provided on the inner side wall of the positioning hole. The position of the locking buckle (101) corresponds to the position of the self-locking buckle (201). After the printing panel (1) is attached to the mounting panel (2), the self-locking buckle (201) is attached to the locking buckle (101).

2. The easily detachable changeover switch according to claim 1, characterized in that: The positioning cylinder (203) has a positioning groove (204) that is vertically and opposite to each other on its outer side wall. The positioning hole has a positioning protrusion (102) on its inner side wall corresponding to the positioning groove (204). The positioning protrusion (102) and the positioning groove (204) are slidably connected.

3. The easily detachable changeover switch according to claim 2, characterized in that: The mounting panel (2) has two opposing auxiliary springs (202) on both sides of the positioning cylinder (203). The auxiliary springs (202) are inclined from the inside to the outside and from the bottom to the top on both sides of the positioning cylinder (203). The lower end of the auxiliary spring (202) is fixedly connected to the mounting panel (2), and the higher end is left empty. When the printing panel (1) and the mounting panel (2) are engaged, the higher end of the auxiliary spring (202) abuts against the bottom surface of the printing panel (1).

4. The easily detachable changeover switch according to claim 3, characterized in that: The high end of the assisting spring (202) is provided with an assisting protrusion (205).

5. A disassembly-friendly changeover switch according to claim 4, characterized in that: The self-locking latch (201) is located on the diagonal of the mounting panel (2).

6. A disassembly-friendly changeover switch according to claim 5, characterized in that: The positioning groove (204) deflects the self-locking buckle (201) and sets the position at 90°.

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