Micro switch with protection mechanism
Patent Information
- Application Number
- CN202522141748.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-10
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-10
AI Technical Summary
Traditional microswitches are prone to losing bolts during disassembly and installation, which affects the use of the washing machine.
A micro switch with a protective mechanism was designed. By combining a rotating component, a mounting base, a sliding groove, a fixing bolt, and a limiting component, the movement distance of the fixing bolt is limited, thus preventing the bolt from separating from the mounting base.
This effectively prevents the loss of fixing bolts, ensures the stable installation of the micro switch, and avoids problems caused by the inability to fix it due to missing bolts.
Smart Images

Figure CN224934644U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of micro switch technology, and in particular to a micro switch with a protective mechanism. Background Technology
[0002] The microswitch of a washing machine timer is a key component used to control the timer function. It is usually composed of micro contacts and is responsible for triggering and switching within a specific time interval to ensure that the washing machine executes the correct program within the set time.
[0003] Traditional microswitches are installed by directly fixing them with bolts through the mounting base at the bottom of the microswitch. However, when maintenance is required, the bolts need to be removed. If the bolts are lost during maintenance, disassembly, or installation, the microswitch cannot be re-secured, thus affecting the use of the washing machine. Utility Model Content
[0004] The purpose of this invention is to provide a micro switch with a protective mechanism to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a micro switch with a protective mechanism, comprising a micro switch body, a mounting base provided at the bottom of the micro switch body, a rotating component for rotating the mounting base provided at the connection between the micro switch body and the mounting base, and a mounting component for fixing the position of the micro switch body provided on one side of the mounting base. The mounting assembly includes a sliding groove formed on the top of the mounting base, a fixing bolt being inserted into the sliding groove, and a limiting element for restricting the movement distance of the fixing bolt being provided at the connection between the fixing bolt and the sliding groove.
[0006] Preferably, the rotating assembly includes a central shaft fixedly connected to the bottom end of the micro switch body, and a positioning base for limiting the movement of the mounting base is fixedly connected to the bottom end of the central shaft.
[0007] Preferably, a rotating hole is provided on one side of the mounting base, and the central shaft is inserted into the interior of the rotating hole.
[0008] Preferably, a rubber ring is fitted on the outer wall of the central shaft, and the rubber ring is inserted into the interior of the rotating hole.
[0009] Preferably, the bottom of the mounting base is provided with a positioning hole, and the positioning base is inserted into the interior of the positioning hole.
[0010] Preferably, the limiting member includes a limiting groove formed in the inner wall of the middle of the sliding groove, and a limiting ring is sleeved on the top of the fixing bolt, the limiting ring being inserted into the inside of the limiting groove.
[0011] Preferably, the inner wall of the bottom end of the sliding groove is provided with a through hole, and the fixing bolt is inserted and connected inside the through hole.
[0012] The technical effects and advantages of this utility model are as follows: Through the design of the rotating component, mounting base, sliding groove, fixing bolt and limiting component, the mounting base and micro switch body are connected by the rotating component during use. The fixing bolt is inserted into the sliding groove and the moving distance of the fixing bolt is limited by the limiting component, so that the fixing bolt cannot be separated from the mounting base, thus avoiding the situation where the fixing bolt is lost and the micro switch body cannot be fixed. Attached Figure Description
[0013] Figure 1 This is a side view of the present invention.
[0014] Figure 2 This is a side sectional view of the present invention.
[0015] Figure 3 This is a top view of the structure of this utility model.
[0016] Figure 4 This is a front sectional view of the present invention. In the figure: 1. Micro switch body; 2. Mounting base; 3. Central shaft; 4. Positioning base; 5. Mounting assembly; 501. Sliding groove; 502. Restricting groove; 503. Restricting ring; 504. Fixing bolt; 505. Through hole; 6. Positioning hole; 7. Rotation hole; 8. Rubber ring. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] This utility model provides, for example Figure 1-4The micro switch shown includes a micro switch body 1, a mounting base 2 at the bottom of the micro switch body 1, a rotating assembly for rotating the mounting base 2 at the connection between the micro switch body 1 and the mounting base 2, and a mounting assembly 5 for fixing the position of the micro switch body 1 on one side of the mounting base 2. The mounting assembly 5 includes a sliding groove 501 formed on the top of the mounting base 2, a fixing bolt 504 inserted inside the sliding groove 501, and a limiting member for limiting the movement distance of the fixing bolt 504 at the connection between the fixing bolt 504 and the sliding groove 501.
[0019] It should be noted that the microswitch body 1 is a key component for controlling the timer function of a washing machine. It consists of micro contacts responsible for triggering and switching within specific time intervals to ensure the washing machine executes the correct program within the set time. The microswitch body 1 includes a cover, a base, a button, a moving spring assembly, and a stationary yellow component. In use, the button moves the moving spring assembly to one side of the stationary yellow component, causing the contact points on the moving spring assembly and the stationary yellow component to make contact, thus completing the opening step. Two mounting bases 2 are provided. When installing the microswitch body 1, the positions of the two mounting bases 2 are fixed, thereby... This prevents the micro switch body 1 from rotating on the mounting bases 2 at the two fixed positions. The rotating component allows the mounting base 2 to rotate at the bottom of the micro switch body 1. When it is necessary to fix the position of the micro switch body 1, the mounting base 2 is rotated out from the bottom of the micro switch body 1. In use, the mounting base 2 and the micro switch body 1 are connected by the rotating component. The fixing bolt 504 is inserted into the sliding groove 501, and the movement distance of the fixing bolt 504 is limited by the limiting component, so that the fixing bolt 504 cannot be separated from the mounting base, thus avoiding the situation where the fixing bolt 504 is lost and the micro switch body 1 cannot be fixed.
[0020] Specifically, the rotating assembly includes a central shaft 3 fixedly connected to the bottom of the micro switch body 1. The bottom of the central shaft 3 is fixedly connected to a positioning base 4 for limiting the movement of the mounting base 2. A rotating hole 7 is provided on one side of the mounting base 2. The central shaft 3 is inserted into the interior of the rotating hole 7. A rubber ring 8 is fitted on the outer wall of the central shaft 3. The rubber ring 8 is inserted into the interior of the rotating hole 7. A positioning hole 6 is provided at the bottom of the mounting base 2. The positioning base 4 is inserted into the interior of the positioning hole 6.
[0021] It should be noted that the horizontal cross-section of the rotating hole 7 is smaller than that of the positioning base 4, so that the mounting base 2 is clamped and positioned by the positioning base 4 and the micro switch body 1. A rubber ring 8 is inserted into the interior of the rotating hole 7. The rubber ring 8 is made of rubber and its surface has a coefficient of friction, which can enhance the friction at the connection, thereby reducing relative movement and sliding, thus preventing the mounting base 2 from rotating on its own. After the micro switch body 1 is disassembled, the mounting base is rotated to the bottom of the micro switch body 1 to prevent the mounting base 2 from being bent or broken due to the micro switch body 1 falling, thus protecting the mounting components of the micro switch body 1.
[0022] Specifically, the limiting components include a limiting groove 502 formed in the inner wall of the middle part of the sliding groove 501, a limiting ring 503 sleeved on the top of the fixing bolt 504, the limiting ring 503 being inserted into the inside of the limiting groove 502, and a through hole 505 formed in the inner wall of the bottom end of the sliding groove 501, the fixing bolt 504 being inserted into the inside of the through hole 505.
[0023] It should be noted that the through hole 505 is adapted to the threaded part of the fixing bolt 504, and the diameter of the through hole 505 is smaller than the diameter of the screw head, so that the screw head cannot pass through the through hole 505. When it is necessary to fix the position of the fixing seat 2, the fixing bolt 504 is tightened, and the position of the fixing seat 2 is fixed by the compression of the screw head of the fixing bolt 504. The cross-section of the limiting groove 502 and the limiting ring 503 is set as annular, so that the limiting ring 503 can rotate and move inside the limiting groove 502. When the limiting ring 503 moves to the inner wall of the top or bottom of the limiting groove 502 and fits against it, the limiting groove 502 blocks the limiting ring 503 from continuing to move in the same direction. This design limits the movement distance of the limiting ring 503, and the limiting ring 503 limits the movement distance of the fixing bolt 504.
[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 micro switch with a protective mechanism, comprising a micro switch body (1), characterized in that, The bottom of the micro switch body (1) is provided with a mounting base (2), and a rotating component for rotating the mounting base (2) is provided at the connection between the micro switch body (1) and the mounting base (2). A mounting component (5) for fixing the position of the micro switch body (1) is provided on one side of the mounting base (2). The mounting assembly (5) includes a sliding groove (501) formed on the top of the mounting base (2). A fixing bolt (504) is inserted into the sliding groove (501). A limiting member is provided at the connection between the fixing bolt (504) and the sliding groove (501) to limit the movement distance of the fixing bolt (504). The rotating assembly includes a central shaft (3) fixedly connected to the bottom end of the micro switch body (1). A positioning base (4) for limiting the movement of the mounting base (2) is fixedly connected to the bottom end of the central shaft (3). A rotating hole (7) is formed on one side of the mounting base (2). The central shaft (3) is inserted into the interior of the rotating hole (7). A rubber ring (8) is fitted on the outer wall of the central shaft (3). The rubber ring (8) is inserted into the interior of the rotating hole (7). A positioning hole (6) is provided at the bottom of the mounting base (2). The positioning base (4) is inserted into the interior of the positioning hole (6). The limiting component includes a limiting groove (502) opened in the inner wall of the middle part of the sliding groove (501). A limiting ring (503) is fitted on the top of the fixing bolt (504). The limiting ring (503) is inserted into the interior of the limiting groove (502). A through hole (505) is opened on the inner wall of the bottom end of the sliding groove (501). The fixing bolt (504) is inserted into the interior of the through hole (505).
