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Safety control structure for opening and closing of upper cover

A safety control and safety switch technology, applied in textiles and papermaking, other washing machines, household appliances, etc., can solve the problems of poor dustproof effect and space occupation, achieve stable operation, compact installation structure, and reduce material costs

Pending Publication Date: 2017-10-27
QINGDAO HAIER WASHING MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This design not only effectively realizes the opening and closing control of the upper cover, but also solves the problem of space occupation caused by the installation position of the touch switch and the problem of poor dustproof effect caused by the upper cover not covering the rear of the disc seat.

Method used

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  • Safety control structure for opening and closing of upper cover
  • Safety control structure for opening and closing of upper cover
  • Safety control structure for opening and closing of upper cover

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 2 and Figure 4 As shown, the safety switch of the present invention is a leaf switch 5, including a moving reed 51 and a static reed 52, the moving reed 51 is arranged above the static reed 52, and the toggle part 4 is located above the moving reed 51 .

[0039]Further, one end of the moving spring 51 extends below the rotating shaft 3 , and the end is provided with a supporting member 53 that is in contact with the toggle part 4 . The supporting member 53 bears the downward pressure of the toggle part 4 , and controls the action of the movable reed 51 connected thereto according to the change caused by the pressure, and contacts and connects with the static reed 52 downward. The design of the supporting member increases the contact area with the toggle part compared with the movable reed, so as to prevent the dislocation of the toggle from causing the inability to contact the movable reed, thereby failing to realize the safety control of opening the ...

Embodiment 2

[0041] Such as figure 2 and Figure 4 As shown, the toggle part 4 of the present invention includes a connecting piece 41 and a toggle piece 42, wherein the connecting piece 41 is integrally connected with the rotating shaft 3, one end of the toggle piece 42 is connected with the connecting piece 41, and the other end is a control brake. The reed 51 acts to connect / disconnect the movable end 43 with the static reed 52 .

[0042] Further, the toggle piece 42 is provided with a guide surface 44 that guides the movable end 43 to move smoothly between the front of the support piece 53 and the top of the support piece 53. The guide surface 44 is an inclined surface and is located on the movable end 43 of the toggle piece. The side opposite to the direction where the upper cover 1 is located. Since the upper cover and the safety switch are both arranged on the front side of the rotating shaft, and the toggle part and the upper cover rotate in the same direction, when the upper co...

Embodiment 3

[0044] Such as Figure 5 and Figure 6 As shown, the connecting piece 41 described in this embodiment is sheathed on the outer periphery of the rotating shaft 3 , and the connecting piece 41 is keyed to the rotating shaft 3 .

[0045] Further, the connecting piece 41 is arranged at one end of the rotating shaft 3, and the other end of the rotating shaft 3 is inserted into the hinge part between the upper cover 1 and the disk base 2, and the connection part between the connecting piece 41 and the rotating shaft 3 is cylindrical, corresponding to inserting the disk The hinged part of the seat is free to rotate with the hinged part of the disc seat.

[0046] Alternatively, the toggle part 4 and the rotating shaft 3 are integrally structured. Alternatively, the toggle part 4 is fixedly connected to the rotating shaft 3 through pins, bolts, screws or other structures capable of fastening.

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Abstract

The invention discloses a safety control structure for opening and closing of an upper cover. The structure comprises the upper cover which is hinged with a disk base by a spindle, a poking part disposed on the spindle, and a safety switch which is installed under the disk base and controlled by actions of the poking part, wherein the upper cover and the safety switch are disposed on the same side of the spindle; the safety switch is a blade switch and comprises a movable spring plate and a static spring plate, the movable spring plate is disposed on the static spring plate, and the poking part is located on the movable spring plate; and the poking part comprises a connecting part and a poking part, wherein the connecting part and the spindle are connected through integral rotation, one end of the poking part is connected to the connecting part, and the other end is a movable end which controls the movable spring plate to move so as to be connected with / disconnected from the static spring plate. According to the invention, the structure is simple and the cost is low; opening and closing of the upper cover are controlled effectively; and a spatial occupation problem caused by an installation position of a trigger switch and the problem of poor dust prevent effects caused by that the upper cover cannot cover the rear part of the disk base can be solved.

Description

technical field [0001] The invention relates to a door cover switch of a washing machine, in particular to an upper cover opening and closing safety control structure in which an upper cover and a safety switch are arranged on the same side of a rotating shaft to save space. Background technique [0002] At present, the design of washing machines tends to be more and more automated and humanized. The opening and closing of the washing machine door to drive the washing machine to run or stop is becoming more and more popular. This design avoids possible water splashes and clothes being thrown out of the drum, etc. Hazardous matter. However, the design of this structure at this stage is designed to place the door cover touch switch in the space behind the washing machine tray, and the upper cover and touch switch are arranged on the front and rear sides of the rotating shaft, relying on the design structure protruding from the rear of the upper cover. Control the contact and ...

Claims

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Application Information

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IPC IPC(8): D06F39/14
CPCD06F39/14D06F37/42
Inventor 程宝珍王秀梅张广磊孙广彬
Owner QINGDAO HAIER WASHING MASCH CO LTD
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