WO2017177793A1

WO2017177793A1 - Safety control structure for opening and closing upper cover

Info

Publication number: WO2017177793A1
Application number: PCT/CN2017/077237
Authority: WO
Inventors: 程宝珍; 王秀梅; 张广磊; 孙广彬
Original assignee: 青岛海尔洗衣机有限公司
Priority date: 2016-04-14
Filing date: 2017-03-20
Publication date: 2017-10-19
Also published as: CN107299497A; CN107299497B; JP2019511317A; JP6789313B2

Abstract

Provided is a safety control structure for opening and closing an upper cover (1), comprising: an upper cover (1) hinged with a disc seat (2) via a rotating shaft (3), a toggle part (4) arranged on the rotating shaft (3), and a safety switch (5) mounted below the disc seat (2) and controlled by the action of the toggle part (4). The upper cover (1) and the safety switch (5) are both arranged on the same side of the rotating shaft (3). The safety switch (5) is a leaf switch (5) and comprises a movable spring leaf (51) and a stationary spring leaf (52). The movable spring leaf (51) is arranged above the stationary spring leaf (52) and the toggle part (4) is located above the movable spring leaf (51). The toggle part (4) comprises a connecting piece (41) and a toggle piece (42), wherein the connecting piece (41) is integrally rotatably connected with the rotating shaft (3), one end of the toggle piece (42) is connected with the connecting piece (41) and the other end thereof is a movable end (43) which controls the movable spring leaf (51) to act so as to connect with/disconnect from the stationary spring leaf (52). The present invention is of a simple structure and a low cost and effectively achieves control of the opening and closing of the upper cover (1) and solves the problems of space occupation due to the mounting position of a contact switch and of poor dust prevention resulting from the upper cover (1) being unable to cover the rear of the disc seat (2).

Description

Upper cover opening and closing safety control structure

Technical field

The invention relates to a door cover switch for 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 the rotating shaft to save space.

Background technique

At present, the design of washing machines tends to be more automatic and user-friendly. Among them, the design of washing machine door opening and closing drives the operation or shutdown of washing machines more and more popular. This design avoids possible splashing, roller clothing, etc. Dangerous matters. However, at this stage, the design of the structure is designed to place the door cover touch switch in the space at the rear of the washing machine seat. The upper cover and the touch switch are arranged on the front and rear sides of the rotating shaft, and the design structure protruding from the rear of the upper cover Controlling the contact and non-contact of the micro-switch contact, thereby controlling the power-off of the opening and closing of the washing machine, this design causes the volume of the washing machine to be bloated and occupied, and increases the material cost of the disc holder.

For example, the Chinese patent application No. 200710140434.1 discloses a washing machine door cover switch, the washing machine opening and closing power hinge control device comprises: an upper cover fixed to the upper plate of the washing machine by a hinge, and a first convex provided on the movable piece of the hinge And a micro switch controlled by the first bump, wherein: the first bump is pivoted on the movable piece of the hinge through the rotating shaft and the one-way braking device. The design of the structure also causes the rear portion of the disk holder to expose a part of the structure relative to the upper cover, so that the portion is not covered by the upper cover, affecting the overall aesthetics of the upper portion of the washing machine, and the dustproof effect is poor.

The present invention has been made in view of the above.

Summary of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and to provide an upper cover opening and closing safety control mechanism for setting the upper cover and the safety switch on the same side of the rotating shaft. The design effectively 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 part of the disk holder while effectively implementing the opening and closing control of the upper cover.

In order to solve the above technical problem, the basic idea of adopting the technical solution of the present invention is: an upper cover opening and closing safety control structure, comprising: an upper cover hinged by a rotating shaft and a disk holder, a dialing portion disposed on the rotating shaft and being mounted on the disk A safety switch controlled by the action of the dialing portion is disposed under the seat, and the upper cover and the safety switch are disposed on the same side of the rotating shaft.

Further, the safety switch is a blade switch, including a moving spring piece and a static spring piece, the moving spring piece is disposed above the static spring piece, and the pushing part is located above the moving spring piece.

Further, the dialing portion includes a connecting member and a dialing member, wherein the connecting member is integrally connected with the rotating shaft, and is dialed One end of the moving member is connected to the connecting member, and the other end is a movable end that controls the action of the moving reed to connect/disconnect with the static reed.

Further, the connecting member is sleeved on the outer circumference of the rotating shaft, and the connecting member is connected with the rotating shaft; or the sliding portion and the rotating shaft are integrated.

Further, the connecting member is disposed at one end of the rotating shaft, and the other end of the rotating shaft is inserted into the hinge portion of the upper cover and the disc holder, and the connecting portion of the connecting member and the rotating shaft is cylindrical, correspondingly inserted into the hinge portion of the disc holder, and the disc holder Free rotation between the hinges.

Further, one end of the moving spring piece extends below the rotating shaft, and the end is provided with a supporting member that is in contact with the movable end of the dialing member. The support member receives the downward pressure of the movable end, and controls the moving reed action connected with the change caused by the pressure, and is connected downwardly to the static reed piece.

Further, the dialing member is provided with a guiding surface for guiding the movable end to smoothly move between the front of the supporting member and the upper portion of the supporting member, and the guiding surface is an inclined surface, and the movable end of the dialing member is opposite to the direction of the upper cover. One side.

Further, the rear end of the disc holder is provided with a hinge seat, and the upper cover is correspondingly provided with a hinge body. The hinge base and the hinge body are connected by a rotating shaft, and the rotating shaft and the hinge body of the upper cover rotate integrally. The hinge body is disposed on the lower surface of the rear portion of the upper cover, and covers the upper surface of the rear portion of the socket more when the upper cover is closed. The hinge body and the hinge seat are respectively provided with shaft holes for inserting the rotating shaft. Since the rotating shaft and the hinge body of the upper cover rotate integrally, the rotating shaft is preferably polygonal, the shape of the shaft hole of the hinge body is matched with the shape of the rotating shaft, and the shaft hole of the hinge seat is suitable for the rotating shaft. Rotating circle.

Further, the upper cover opening and closing safety control structure further includes a blocking mechanism for preventing the movement of the dial portion in the axial direction of the rotating shaft.

Further, the blocking mechanism comprises a first blocking member and a second blocking member on both sides of the dialing portion, the hinge seat of the disk holder constitutes a first blocking member, and the second blocking member is fixedly mounted on the disk holder.

Further, a side of the dialing portion corresponding to the second blocking member is provided with a positioning circular hole along the axial direction of the rotating shaft, and the second blocking member is provided with a positioning cylinder matched with the positioning circular hole, and the positioning cylinder is inserted in the positioning circle. Inside the hole.

Further, the upper cover is hinged to the disk holder through at least two sets of rotating shafts, wherein a rotating portion is mounted on the rotating shaft, and the other rotating shaft is provided with a damping mechanism for buffering the upper cover to close the impact force.

Further, the stroke of the toggle operation control safety switch corresponds to the angle α of the upper cover opening, and the angle α of the upper cover opening is 5°-30°. That is, when the upper cover is opened from the closed state by the α angle, the power-off effect is started, and it is preferable that the set stroke of the toggle operation control safety switch corresponds to α of 6.5°.

When the upper cover of the washing machine is closed, the movable end of the dialing member is pressed against the supporting member of the moving spring. At this time, the moving spring is pressed down and connected to the static spring, the blade switch contact is closed, and the washing machine can be energized. When the upper cover of the washing machine is opened, the upper cover drives the rotating shaft, The toggle portion rotates together, and the movable end of the dial moves obliquely upwards above the support member to start to disengage from the movable spring, gradually reducing the amount of compression of the support member. When the upper cover is opened to an angle α, the dial member is disengaged. The moving reed, the moving reed is reset, and disconnected from the static reed. At this time, the washing machine is powered off and stops running, so as to avoid damage to the user caused by the high-speed inner barrel.

After adopting the above technical solution, the present invention has the following advantageous effects compared with the prior art.

When the upper cover and the safety switch are disposed on the same side of the rotating shaft, that is, both are disposed on the front side of the rotating shaft, the safety switch is prevented from occupying the rear space of the washing machine seat, thereby reducing the material cost of the disk holder. The cover effectively covers the rear of the disc holder, the washing machine is more beautiful, and the upper cover is more dustproof and waterproof; the moving reed of the vane switch is disposed above the static reed, and the dialing portion is mounted above the moving reed to make the mounting structure The utility model has the advantages of more compact and more stable operation; the guiding surface is an inclined surface, and is disposed on the side opposite to the direction in which the movable end of the dialing member is located, so that the sliding control effect is more sensitive and effective; the disc seat is mounted with the anti-toggle portion on the rotating shaft The blocking mechanism that moves in the axial direction realizes the positioning of the dialing portion, and realizes stable operation and accurate judgment of the safety switch; the end of the moving spring piece is provided with a supporting member, so that the dialing member can more conveniently control the blade switch and increase The control area of the movable end of the dial member to the moving reed makes the safety switch control more accurate.

The specific embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

DRAWINGS

The drawings are intended to provide a further understanding of the invention, and are intended to be illustrative of the invention. It is apparent that the drawings in the following description are only some embodiments, and other drawings may be obtained from those skilled in the art without departing from the drawings. In the drawing:

Figure 1 is a schematic view showing the opening structure of the upper cover of the present invention;

Figure 2 is a schematic enlarged view of the portion A of Figure 1;

Figure 3 is a schematic view showing the closed structure of the upper cover of the present invention;

Figure 4 is a schematic enlarged view of the portion B of Figure 3;

Figure 5 is a schematic view showing the assembly structure of the upper cover and the disc holder of the present invention;

Figure 6 is a schematic enlarged view of the portion C of Figure 5;

Figure 7 is a schematic view showing the structure of the lower portion of the disk holder of the present invention.

In the figure: upper cover 1, hinge body 11, shaft hole 12, disk holder 2, hinge seat 21, shaft hole 22, rotating shaft 3, toggle portion 4, safety switch, vane switch 5, connecting member 41, dial member 42 The movable end 43, the guiding surface 44, the positioning circular hole 45, the moving spring piece 51, the static spring piece 52, the supporting member 53, the first blocking member 6, the second blocking member 7, and the positioning cylinder 71.

It is to be understood that the drawings and the written description are not intended to limit the scope of the present invention in any way.

detailed description

The embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that the orientation or positional relationship of the terms "upper", "lower", "front", "back", "side", etc. is indicated based on the relationship between the product and the user. The orientation or positional relationship is merely for the purpose of describing the present invention and the simplification of the description, and is not intended to indicate or imply that the device or element referred to has a particular orientation, is constructed and operated in a particular orientation, and thus is not to be construed as limiting the invention.

In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.

As shown in FIG. 1 to FIG. 7 , an upper cover opening and closing safety control structure according to the present invention includes: an upper cover 1 hinged to the disk holder 2 via a rotating shaft 3, a dialing portion 4 disposed on the rotating shaft 3, and The safety switch 5, which is controlled by the action of the dialing portion 4, is mounted on the disk holder 2, and the upper cover 1 and the safety switch 5 are disposed on the same side of the rotating shaft 3, that is, on the front side of the rotating shaft 3.

Embodiment 1

As shown in FIG. 2 and FIG. 4, the safety switch according to the present invention is a blade switch 5, which includes a moving spring piece 51 and a static spring piece 52. The moving spring piece 51 is disposed above the static spring piece 52, and the dialing portion 4 is located. Above the moving spring 51.

Further, one end of the moving spring piece 51 extends to the lower side of the rotating shaft 3, and the end is provided with a supporting member 53 which is in contact with the dialing portion 4. The support member 53 receives the downward pressure of the dial portion 4, and controls the movable spring piece 51 connected thereto in response to the change caused by the pressure, and is in contact with the static spring piece 52 in the downward direction. The design of the support member increases the contact area with the toggle portion relative to the movable spring piece, and prevents the displacement of the dial portion from contacting the movable spring piece, thereby failing to realize the safety control of the opening cover.

Embodiment 2

As shown in FIG. 2 and FIG. 4, the toggle portion 4 of the present invention includes a connecting member 41 and a dial member 42. The connecting member 41 is integrally rotatably coupled to the rotating shaft 3, and one end of the dialing member 42 is connected to the connecting member 41. The other end is a movable end 43 that controls the action of the moving reed 51 to be connected/disconnected to the static spring piece 52.

Further, the dialing member 42 is provided with a guiding surface 44 for guiding the movable end 43 to smoothly move between the front side of the supporting member 53 and the upper side of the supporting member 53. The guiding surface 44 is an inclined surface and is disposed at the movable end 43 of the dialing member. The side opposite to the direction in which the upper cover 1 is located. Since the upper cover and the safety switch are both disposed on the front side of the rotating shaft, and the dialing portion and the upper cover rotate in the same direction, when the upper cover is opened, the dialing portion rotates forward, the movable end moves obliquely upward, and the movable end moves. The pressure of the support member becomes smaller, the moving spring piece is reset by the influence of its own deformation, and finally is completely disconnected from the static spring piece, and the support piece is finally located on the trajectory of the movable end movement; and when the upper cover is closed, the movable end is reversed. The movement is firstly contacted with the front end of the support member, and under the influence of the inclined guide surface, the rotation is simultaneously slid over the support member and the downward pressure of the support member is provided, so that the movable spring piece is deformed downwardly to be connected with the static spring piece.

Embodiment 3

As shown in FIG. 5 and FIG. 6, the connecting member 41 of the present embodiment is sleeved on the outer circumference of the rotating shaft 3, and the connecting member 41 is connected to the rotating shaft 3.

Further, the connecting member 41 is disposed at one end of the rotating shaft 3, and the other end of the rotating shaft 3 is inserted into the hinge portion of the upper cover 1 and the disk holder 2. The connecting portion of the connecting member 41 and the rotating shaft 3 is cylindrical, and the corresponding insertion disk is inserted. The seat hinge is free to rotate between the hinge portion and the hub.

Alternatively, the toggle portion 4 and the rotating shaft 3 have an integral structure. Further, the dial portion 4 is fixedly coupled to the rotating shaft 3 by a pin, a bolt, a screw or other structure capable of fastening.

Embodiment 4

As shown in FIG. 1 and FIG. 5, the rear end of the disc holder 2 according to the present invention is provided with a hinge base 21, and the upper cover 1 is correspondingly provided with a hinge body 11, and the hinge base 21 and the hinge body 11 are connected by a rotating shaft 3, and the rotating shaft 3 and The hinge body 11 of the upper cover rotates integrally. The hinge body 11 is provided on the lower surface of the rear portion of the upper cover 1, and when the upper cover 1 is closed, the upper surface of the rear portion of the disk holder 2 is more covered (see Fig. 3). The hinge body 11 and the hinge base 21 are respectively provided with

shaft holes

12 and 22 for the insertion of the rotating shaft 3. Since the rotating shaft 3 rotates integrally with the hinge body 11 of the upper cover, the rotating shaft 3 is preferably a polygonal shape, and the hinge body shaft hole 12 has a shape and a rotating shaft. 3 Shape matching, the hinge seat shaft hole 22 is a circle suitable for the rotation of the rotating shaft 3.

Embodiment 5

As shown in FIGS. 5 to 7, the upper cover opening and closing safety control structure of the present invention further includes a blocking mechanism that prevents the toggle portion 4 from moving in the axial direction of the rotary shaft 3. The blocking mechanism includes a first blocking member 6 and a second blocking member 7 on both sides of the dial portion 4. The hinge seat 21 of the disk holder constitutes a first blocking member 6, and the second blocking member 7 is fixedly mounted on the lower surface of the disk holder 2. (See Figure 7).

Further, a side of the second blocking member 7 corresponding to the second blocking member 7 is provided with a positioning circular hole 45 along the axial direction of the rotating shaft 3, The second blocking member 7 is provided with a positioning cylinder 71 matched with the positioning circular hole 45. The positioning cylinder 71 is inserted into the positioning circular hole 45 and is freely rotatable.

Embodiment 6

The stroke of the toggle portion 4 of the present invention controls the stroke of the safety switch 5 corresponding to the angle α at which the upper cover 1 is opened, and the angle α at which the upper cover 1 is opened is 5° to 20°. That is, when the upper cover 1 is opened by the α angle from the closed state, the power-off effect is started, and it is preferable that the setting stroke of the dialing unit 4 is controlled to be 6.5°.

When the upper cover 1 of the washing machine is closed, the movable end 43 of the dial is pressed against the support of the moving spring 51. At this time, the moving spring 51 is pressed down to connect with the static spring 52, the contact of the blade switch 5 is closed, and the washing machine can be energized. Running. When the upper cover 1 of the washing machine is opened, the upper cover 1 drives the rotating shaft 3 and the dialing portion 4 to rotate together, and the movable end 43 of the dial moves obliquely upwards above the supporting member 53 to start to disengage from the moving spring 51, thereby gradually reducing the support. When the upper cover 1 is opened to an angle α, the dial member 42 is disengaged from the movable reed 51, and the movable reed 51 is reset and disconnected from the static reed 52, at which time the washing machine is powered off and stopped. Operation, to avoid damage to the user caused by the high-speed inner barrel.

Example 7

The upper cover 1 of the present invention is hinged to the disk holder 2 via at least two sets of rotating shafts 3, wherein a rotating portion 3 is mounted with a toggle portion 4 (see FIG. 6), and the other rotating shaft 3 is provided with a buffering upper cover for closing the impact force. Damping mechanism (not shown). Alternatively, the damper mechanism and the dial portion are mounted on the same rotating shaft.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and any technology that is familiar with the present patent. Those skilled in the art can make some modifications or modifications to equivalent embodiments by using the technical content of the above-mentioned hints without departing from the technical scope of the present invention, but the technology according to the present invention does not deviate from the technical solution of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments are still within the scope of the present invention.

Claims

The utility model relates to an upper cover opening and closing safety control structure, comprising: an upper cover hinged by a rotating shaft and a disk holder, a dialing portion arranged on the rotating shaft and a safety switch mounted under the disk seat and controlled by the action of the dialing portion, wherein The upper cover and the safety switch are disposed on the same side of the rotating shaft.
1 . The upper cover opening and closing safety control structure according to claim 1 , wherein the safety switch is a blade switch, and comprises a moving spring piece and a static spring piece, wherein the moving spring piece is disposed above the static spring piece. The toggle portion is located above the moving spring.
The upper cover opening and closing safety control structure according to claim 2, wherein the dialing portion comprises a connecting member and a dialing member, wherein the connecting member is integrally rotatably connected with the rotating shaft, and one end of the dialing member is The connecting members are connected, and the other end is a movable end that controls the moving reed to connect/disconnect with the static reed.
The upper cover opening and closing safety control structure according to claim 3, wherein the connecting member is sleeved on the outer circumference of the rotating shaft, and the connecting member is connected with the rotating shaft; or the dialing portion and the rotating shaft As a unitary structure.
The upper cover opening and closing safety control structure according to claim 4, wherein the connecting member is disposed at one end of the rotating shaft, and the other end of the rotating shaft is inserted into the hinge portion of the upper cover and the disk holder, and the connecting member is The connecting portion of the rotating shaft is cylindrical, correspondingly inserted into the hinge portion of the disc holder, and freely rotates with the hinge portion of the disc holder.
The upper cover opening and closing safety control structure according to claim 3, wherein one end of the moving spring piece extends below the rotating shaft, and the end is provided with a supporting member that is in contact with the movable end of the dialing member.
The upper cover opening and closing safety control structure according to claim 6, wherein the dial member is provided with a guiding surface for guiding the movable end to smoothly move between the front of the support member and the upper portion of the support member, and the guiding surface The inclined surface is disposed on the opposite side of the movable end of the dial member from the direction of the upper cover.
The upper cover opening and closing safety control structure according to any one of claims 1 to 7, wherein the rear end of the disc holder is provided with a hinge base, and the upper cover is correspondingly provided with a hinge body, a hinge base and a hinge body. Through the shaft connection, the rotating shaft rotates integrally with the hinge body of the upper cover.
A top cover opening and closing safety control structure according to claim 8, further comprising a blocking mechanism for preventing the movement of the dial portion in the axial direction of the rotary shaft.
The upper cover opening and closing safety control structure according to claim 9, wherein the blocking mechanism comprises a first blocking member and a second blocking member on both sides of the dialing portion, and the hinge seat of the disk holder comprises The first blocking member is fixedly mounted on the disc holder.
The upper cover opening and closing safety control structure according to claim 10, wherein the dialing portion One side corresponding to the second blocking member is provided with a positioning circular hole along the axial direction of the rotating shaft, and the second blocking member is provided with a positioning cylinder matched with the positioning circular hole, and the positioning cylinder is inserted in the positioning circular hole.
The upper cover opening and closing safety control structure according to any one of claims 1 to 11, wherein the upper cover is hinged to the disk holder through at least two sets of rotating shafts, wherein a rotating portion is mounted on a rotating shaft, The other rotating shaft is provided with a damping mechanism that cushions the upper cover to close the impact force.
The upper cover opening and closing safety control structure according to any one of claims 1 to 12, characterized in that the stroke of the toggle operation control safety switch corresponds to the angle α of the upper cover opening, α is 5°~ 30°.