Cam rotating switch
A technology of rotary switch and cam, applied in the direction of contact operating parts, contact drive mechanism, etc., to achieve the effect of accurate rotation angle
Active Publication Date: 2010-10-13
深圳玛西尔电动车股份公司
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AI Technical Summary
Problems solved by technology
The existing rotary three-speed switch lacks the operation protection function. When the rotation direction is wrong or the operation force is too large, it is easy to cause damage to the switch; and the general operation method is to directly rotate the speed regulating knob installed on the rotating cam by hand, and the operation is arbitrary. , easy to misuse, which is not conducive to ensuring the specificity in some special occasions
Method used
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Embodiment Construction
[0020] The concrete structure of rotary handle cam 3 is as image 3 As shown, an inner thrust tooth 31 , a through hole 32 , a first boss 33 , a second boss 34 , a positioning tooth groove 35 and a limit block 36 are arranged on it.
[0021] The concrete structure of switch knob 6 is as Figure 4 As shown, a hexagonal hole 61 and two outer thrust teeth 62 are arranged on it.
[0022] like Figure 5 As shown, during installation, the two outer thrust teeth 62 on the switch handle 6 mesh with the inner thrust teeth 31 on the handle cam 3 . The positioning post return spring 10 and the lower end of the positioning post 7 are installed in the positioning post receiving hole 21 . The positioning column 7 has a mounting step 71 , the upper surface of which bears against the lower surface of the switch handle 6 under the action of spring force; the upper positioning column of the positioning column 7 is inserted into the hexagonal hole 61 of the switch handle 6 . The positioning ...
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The invention discloses a cam rotary switch, which comprises an upper cover, a rotary cam which is installed on the upper cover, a lower cover and a contact switch which is installed on the lower cover, wherein a lug boss is arranged on the rotary cam, and the rotary cam can be rotated under the action of the apparent force and can trigger the contact switch through the lug boss. The cam rotary switch is characterized by comprising a switch rotary handle and a rotary handle cam, wherein the external diameter of the switch rotary handle is matched with the inner diameter of the rotary handle cam in a driving mode, the lug boss is positioned on the rotary cam, a limited block and a locating tooth slot are further arranged on the rotary handle cam, a limited slot, a positioning hoodle and a hoodle retracting spring are arranged on the lower cover. The cam rotary switch is characterized in that the rotary cam is divided into two parts, namely a switch rotary handle and a rotary handle cam, which are engaged and driven through gears, when the force is excessive during the operation, the gears slide, thereby the damages of the rotary switch are avoided, with the design of the limited block and the positioning slot, the error in operating directions and the damage of the rotary switch when the operate is over the limit are avoided, with the arrangements of positioning hoodle and the locating tooth slot, thereby the position after the rotation is fixed, and the accuracy of the rotational angle is guaranteed.
Description
technical field [0001] The invention relates to a switch adjusting device, in particular to a cam rotary switch. Background technique [0002] The known rotary three-speed switch generally comprises a loam cake and a loam cake, and a rotary cam is installed in the loam cake, and a contact switch is installed in the loam cake. When the rotating cam rotates, different parts of the cam touch the contact switch, thereby realizing the transposition function of the switch. The existing rotary three-speed switch lacks the operation protection function. When the rotation direction is wrong or the operation force is too large, it is easy to cause damage to the switch; and the general operation method is to directly rotate the speed regulating knob installed on the rotating cam by hand, and the operation is arbitrary. , easy to misuse, which is not conducive to ensuring the specificity in some special occasions. Contents of the invention [0003] The technical problem to be sol...
Claims
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IPC IPC(8): H01H3/42H01H3/08
Inventor 董李
Owner 深圳玛西尔电动车股份公司