WO2018082627A1

WO2018082627A1 - Screw cover and washing machine using same

Info

Publication number: WO2018082627A1
Application number: PCT/CN2017/109177
Authority: WO
Inventors: 宋立军; 程宝珍; 孙广彬; 张开宏; 王秀梅
Original assignee: 青岛海尔洗衣机有限公司
Priority date: 2016-11-04
Filing date: 2017-11-02
Publication date: 2018-05-11
Also published as: CN108018682A; CN108018682B

Abstract

A screw cover and a washing machine using same. The screw cover comprises: a cover body (1) and a connecting part; a hook part (2) is provided on the cover body (1); the connecting part comprises a clip surface (3) and a mounting hole (4); the clip surface (3) is located at two sides of the mounting hole (4); the hook part (2) can pass through the mounting hole (4); the mounting hole (4) is communicated with a rotating groove (5); the hook part (2) pass through the rotating groove (5) is clipped onto the clip surface (3).

Description

Screw cover and washing machine using the same

Technical field

The present disclosure relates to the field of screw cap technology, for example, to a screw cover and a washing machine using the same.

Background technique

When the control disc holder of the pulsator automatic washing machine is connected with the box body, in order to ensure the strength of the connection, the disc holder needs to be screwed to the gusset which is riveted to the box body, which causes the screw head to be exposed outside the washing machine, which affects The overall appearance and aesthetics of the washing machine. At present, most manufacturers' solutions are to cover the screw head at the screw head by externally installing a screw cover, thereby ensuring the overall appearance and appearance of the washing machine.

At present, the fixing method of the screw cover and the disk holder is mainly as shown in FIGS. 1 and 2. The screw cover 1' is provided with two symmetrical hooks 2', and the hook 2' is connected with the screw cover 1' through the connecting rib 3', corresponding to Two square holes are provided at corresponding positions of the disk holder 4', and the hook 2' projects into the square hole and hooks on the inner wall of the disk holder 4' around the square hole. When the screw cap 1' is connected to the disc holder 4', the connecting rib 3' undergoes a large degree of compression and tensile deformation during installation and disassembly. On the one hand, the deformation of the connecting rib 3' causes the worker to use a large amount of force during installation and disassembly, which is very inconvenient. On the other hand, the connecting rib 3' often deforms to cause breakage or damage, which seriously affects the hook 2' The service life of the screw cap 1' is reduced.

Summary of the invention

The embodiment of the invention provides a screw cover, which can avoid deformation during installation and disassembly, and prolong the service life.

A screw cover includes: a cover body and a connecting portion, wherein the cover body is provided with a hook portion, the connecting portion includes: a latching surface and a mounting hole, the latching surface is located at two sides of the mounting hole The hook portion can smoothly pass through the mounting hole, and the mounting hole communicates with a rotating slot, and the hook portion passes through the rotating portion The slot is snapped onto the card interface.

Optionally, an elastic member is disposed between the cover body and the connecting portion, and the elastic member is in a compressed state when the screw cover is connected to the connecting portion. The elastic member can cause the cover body to be subjected to a force facing away from the connecting portion, so that the hook portion is pressed against the engaging surface, and the screw cover is more closely connected to the connecting portion.

Optionally, the elastic member is fixed on the cover or the connecting portion. It can prevent the elastic member from moving and ensure the stability of the connection.

Optionally, the connecting portion is provided with an elastic member supporting platform for supporting the elastic member, the engaging surface is located on a side of the elastic member supporting platform away from the elastic member, the elastic member supporting table and the The opposite side of the screw cover is used to support the elastic member. The structure is compact and easy to install.

Optionally, the hook portion is provided with a positioning post, and the engaging surface is provided with a positioning hole, and the positioning post extends into the positioning hole to achieve the matching. The screw cover can be positioned to prevent the screw cover from rotating under vibration or the like, and the screw cover can be prevented from coming off.

Optionally, the screw cover further includes a connecting rib, and the connecting rib fixes the hook portion to the cover body.

Optionally, the cover body has a planar structure, and the connecting rib is perpendicularly connected to the cover body, and the hook portion is parallel to the cover body and points away from a center of the cover body. The hook portion can be directly engaged with the engaging surface, so that the contact area between the engaging surface and the hook portion is increased, and the stability of the screw cover connection is ensured.

Optionally, the hook portion is at least two, and each of the hook portions forms a rotational symmetry between the center of the cover body and the center of the symmetry. The hook portion is evenly distributed on the cover body, which can ensure the uniform force of the cover body and prevent the installation from being unstable.

Optionally, the center of the connecting portion is provided with a groove, and the bottom of the groove is provided with a threaded hole for passing a screw. Place the screw in the groove to prevent the screw head from protruding and the screw cover cannot be installed.

The utility model relates to a washing machine, which adopts the screw cover mentioned above, has a beautiful appearance and a long use time, and the screw cover is not easy to fall off.

The screw cover of the embodiment of the invention can avoid deformation of the hook portion and prolong the service life, and at the same time, the screw cover can be installed and disassembled by rotating in different directions, which is convenient and labor-saving.

DRAWINGS

Figure 1 is a schematic view showing the structure of a screw cover and a disk holder;

2 is a schematic structural view of the hook and the socket being engaged;

3 is a schematic structural view of a screw cover provided by an embodiment;

4 is a schematic structural view of another embodiment of a screw cover according to an embodiment;

FIG. 5 is a schematic structural diagram of a connecting portion according to an embodiment; FIG.

6 is a schematic structural view of a side of the connecting portion away from the cover body according to an embodiment;

FIG. 7 is a schematic structural view of the screw cover and the connecting portion provided in an embodiment.

Wherein, 1', screw cover; 2', hook; 3', connecting rib; 4', disk holder;

1, the cover body; 2, the hook portion; 3, the card joint surface; 4, the mounting hole; 5, the rotating groove; 6, the connecting rib; 7, the positioning column; 8, the positioning hole; 9, the elastic member; Supporting table; 11, groove; 12, threaded hole; 13, screw.

detailed description

As shown in FIG. 1-7, the present embodiment provides a screw cover, which includes a cover body 1 and a connecting portion. The cover body 1 is provided with a hook portion 2, and the connecting portion includes a latching surface 3 and a mounting hole 4, and the engaging surface 3 is located on both sides of the mounting hole 4, and the hook portion 2 can smoothly pass through the mounting hole 4. The mounting hole 4 communicates with the rotating groove 5, and the hook portion 2 passes through the rotating groove 5 and is engaged with the engaging surface 3. The connecting portion in the present embodiment is located on the control panel of the electric appliance.

The mounting hole 4 of the screw cover enables the hook portion 2 to pass smoothly, and the rotating groove 5 and the engaging surface 3 are disposed on both sides of the mounting hole 4, and the hook portion 2 is rotated and then snapped in the rotating groove 5 to be engaged On the surface 3, the deformation of the hook portion 2 can be avoided, and the service life can be prolonged. At the same time, the screw cover can be installed and disassembled by rotating in different directions, which is convenient and labor-saving.

As shown in FIG. 3 and FIG. 4, in the embodiment, the hook portions 2 are two, and the center of the cover body 1 is symmetrically formed to be rotationally symmetrical. When the connection is balanced, the installation is stable, and the connection portion is mounted correspondingly. The number of the holes 4 is the same as the number of the hook portions 2. Depending on the size and structural layout of the screw cover, the hook portion 2 can be selected in plurality, and the respective hook portions 2 are rotationally symmetric with the center of the cover 1 as a center of symmetry.

The screw cover further includes a connecting rib 6 that fixes the hook portion 2 to the cover body 1. The cover body 1 has a planar structure, and the connecting rib 6 is vertically connected to the cover body 1, and the hook portion 2 is parallel to the cover body 1 and points away from the center of the cover body 1. A positioning post 7 is disposed on the hook portion 2, and the positioning post 7 is directed to the cover body 1. The positioning surface 8 is disposed on the engaging surface 3, and the positioning post 7 extends into the positioning hole 8 for cooperation. The cooperation of the positioning post 7 and the positioning hole 8 can prevent the screw cover from rotating out of the connecting portion due to external factors such as vibration.

An elastic member 9 is disposed between the cover body 1 and the connecting portion. In the embodiment, the elastic member 9 is selected as a spring piece, and the elastic piece is fixed on the cover body 1. When the screw cover is connected with the connecting portion, the elastic member 9 is in a compressed state. The cover body 1 is subjected to a force facing away from the connecting portion, so that the positioning post 7 is more closely fitted with the positioning hole 8 to prevent the positioning post 7 from coming out of the positioning hole 8. The elastic member 9 can also be fixed to the connecting portion in other manners depending on the specific situation.

Optionally, in the embodiment, the elastic pieces are two, and are spaced apart from the hook portion 2, and the elastic force received by the cover body 1 is balanced after the screw cover is connected.

As shown in FIGS. 5 and 6, the connecting portion is provided with an elastic member supporting table 10 for supporting the elastic member 9. The elastic member supporting table 10 has an arc shape, and the engaging surface 3 is located at the elastic member supporting table 10 away from the elastic member 9. On one side, the side of the elastic member support table 10 opposite to the screw cover is used to support the elastic member 9.

The center of the connecting portion is provided with a groove 11, and the bottom of the groove 11 is provided with a threaded hole 12 for the screw 13 to pass therethrough. The bottom of the recess 11 is lower than the surface of the elastic member 9 of the elastic member supporting table 10, and the elastic member supporting table 10 is located around the recess 11, and the rotating groove 5 is opened on the side wall of the recess 11.

The screw cover installation and removal process includes:

After the screw 13 is installed in the threaded hole 12 in the groove 11, the hook portion 2 on the screw cover corresponds to the position of the mounting hole 4 on the connecting portion, and the screw cover is pushed in the direction of the connecting portion, and then the elastic piece and the elastic portion After the support table 10 is in contact, the cover body 1 is continuously pressed, and the elastic piece on the cover body 1 is compressed and rotated in the direction of the rotation groove 5. At this time, the positioning post 7 is in contact with the engaging surface 3, and dynamic friction is generated. The hook portion 2 is rotated through the rotation groove 5 until the positioning post 7 protrudes into the positioning hole 8, and the cover body 1 is stopped and pressed, and the installation is completed. As shown in FIG. 7 , the screw cover and the connection portion are assembled. Schematic.

When the screw cover needs to be removed, the cover body 1 is first pressed down, so that the positioning post 7 is disengaged from the positioning hole 8, and then the cover body 1 is rotated, so that the hook portion 2 is rotated to the mounting hole 4, and the force on the cover body 1 is stopped. The screw cover is able to disengage from the connection.

The embodiment also provides a washing machine using the screw cover described above. Optionally, the screw cover is used in Washing machine on the pulsator.

Industrial applicability

The screw cover and the washing machine of the present disclosure can avoid deformation during installation and disassembly, and the installation and disassembly of the screw cover is more convenient and labor-saving, prolonging the service life of the screw cover, and ensuring the overall appearance and appearance of the washing machine.

Claims

A screw cover includes: a cover body (1) and a connecting portion, the cover body (1) is provided with a hook portion (2), and the connecting portion comprises: a latching surface (3) and a mounting hole (4) The latching surface (3) is located on both sides of the mounting hole (4), and the hook portion (2) can smoothly pass through the mounting hole (4), and the mounting hole (4) is connected There is a rotating groove (5) through which the hook portion (2) passes and is engaged with the engaging surface (3).
The screw cap according to claim 1, wherein an elastic member (9) is disposed between the cover body (1) and the connecting portion, and the elastic member (when the screw cover is coupled to the connecting portion) 9) is in a compressed state.
The screw cap according to claim 2, wherein the elastic member (9) is fixed to the cover (1) or the connecting portion.
The screw cap according to claim 2, wherein the connecting portion is provided with an elastic member supporting table (10) for supporting the elastic member (9), and the engaging surface (3) is located at the elastic member The support table (10) is away from one side of the elastic member (9), and the opposite side of the elastic member support table (10) from the screw cover is used to support the elastic member (9).
The screw cap according to any one of claims 1 to 4, wherein the hook portion (2) is provided with a positioning post (7), and the latching surface (3) is provided with a positioning hole (8) The positioning post (7) extends into the positioning hole (8) to achieve cooperation.
The screw cap according to claim 1, wherein the screw cover further comprises: a connecting rib (6), the connecting rib (6) fixing the hook portion (2) to the cover body (1) on.
The screw cap according to claim 6, wherein the cover body (1) is a planar structure, the connecting ribs (6) are vertically connected to the cover body (1), and the hook portions (2) are parallel The cover body (1) is pointed away from the center of the cover body (1).
The screw cap according to claim 1 or 6, wherein the hook portions (2) are at least two, and each of the hook portions (2) is formed with a center of symmetry of the center of the cover body (1). Rotational symmetry.
The screw cover according to claim 1, wherein a center of the connecting portion is provided with a groove (11), and a bottom of the groove (11) is provided with a threaded hole for passing the screw (13).
A washing machine using the screw cap according to any one of claims 1-9.