WO2020220961A1

WO2020220961A1 - Adjustable foot and washing machine

Info

Publication number: WO2020220961A1
Application number: PCT/CN2020/083904
Authority: WO
Inventors: 徐龙星; 李阔; 陈杨; 王元喜
Original assignee: 青岛海尔洗衣机有限公司; 海尔智家股份有限公司
Priority date: 2019-04-29
Filing date: 2020-04-09
Publication date: 2020-11-05
Also published as: CN111850995A; CN111850995B

Abstract

Disclosed are an adjustable foot, and a washing machine with the adjustable foot. The adjustable foot comprises a support base (7); a bolt (8), one end of the bolt (8) being fixedly connected to the support base (7); an adjusting nut (4), the adjusting nut (4) being in threaded connection with the other end of the bolt (8); and a locking nut (5), the locking nut (5) being located on the bolt (8) between the adjusting nut (4) and the support base (7). The adjusting nut (4) is provided with a positioning structure for assembly. The positioning structure is a positioning engagement groove (41) provided in at least one outer wall surface of the adjusting nut (4); and the adjusting nut (4) is a hexagon nut, and the positioning structure is positioning engagement grooves (41) provided in two opposite outer wall surfaces of the hexagon nut, or the positioning structure is the positioning engagement groove (41) provided in the whole peripheral wall at the periphery of the hexagon nut. A base plate (1) of the washing machine is provided with an engagement position hole (2), and the positioning engagement groove (41) of the adjusting nut (4) engages within the engagement position hole (2), thereby realizing assembly of the adjustable foot and the washing machine, with the assembly efficiency being high.

Description

Adjustable foot and washing machine

Technical field

The invention relates to the technical field of washing machines, in particular to an adjustable foot and a washing machine.

Background technique

With the increasing demand for washing machines in the market, the production and assembly quality requirements for washing machines are getting higher and higher. Assemblers on the assembly line have complaints about the installation of adjustable feet. The existing washing machine feet and washing machine assembly are Flanging holes are set on the sheet metal parts of the bottom plate of the box, and tapping machines are used on the basis of the flanging. Due to the low precision of the tapping machine, the sheet metal parts of the bottom plate are rough and locked with the foot bolts. The tightening nut assembly is very tight, and the assembly staff can only work hard to assemble it manually, which is time-consuming and laborious under the premise of ensuring the output and quality. And the height of the flanging is limited by the size of the flanging hole and the thickness of the material. The foot bolts of the washing machine usually use M10 screw posts, the pitch of the M10 screw posts is 1.5mm, and the thickness of the sheet metal parts of the bottom plate plus the flanging The overall height generally does not exceed 3mm, and the threaded holes of the threaded holes have fewer threads, so it is very difficult to assemble the M10 screw column with the sheet metal parts of the bottom plate, and it cannot be guaranteed to be screwed in place, and if the feet are frequently removed and replaced It is easy to cause wrinkles.

Therefore, there is a need for an adjustable foot of a washing machine that can reduce the difficulty of the assembly staff while enhancing the assembly efficiency of the production line.

In view of this, the present invention is proposed.

Summary of the invention

The purpose of the present invention is to overcome the shortcomings of the prior art and provide an adjustable foot and washing machine that can reduce the difficulty of assembly and enhance the assembly efficiency of the production line.

In order to achieve this objective, the present invention adopts the following technical solutions:

An adjustable foot, including:

Support base;

A bolt, one end of the bolt is fixedly connected to the support seat;

An adjusting nut, which is threadedly connected to the other end of the bolt;

A lock nut, which is located on the bolt between the adjusting nut and the support seat;

A positioning structure for assembly is provided on the adjusting nut.

Further, the positioning structure is a positioning slot opened on at least one outer wall surface of the adjusting nut;

Preferably, the adjusting nut is a hexagonal nut, and the positioning structure is a positioning slot opened on two opposite outer wall surfaces of the hexagonal nut, or the positioning structure is a positioning opened on the entire peripheral wall of the outer periphery of the hexagonal nut Card slot.

Further, a washing machine with the above-mentioned right adjustable feet includes a washing machine bottom plate, the washing machine bottom plate is provided with a locking hole, and the adjusting nut is clamped in the locking hole to realize the adjustable feet and the washing machine assembly.

Further, the positioning hole is a long hole opened on the bottom plate of the washing machine, and at least one side of the long hole is clamped in the positioning slot;

Preferably, the two long sides of the locking hole are locked in the positioning slot.

Further, the depth of the positioning slot is greater than the thickness of the bottom plate, the distance between the two long sides of the positioning hole is greater than the distance between the positioning slot on the two opposite outer wall surfaces of the adjusting nut, so The distance between the two long sides of the locking hole is smaller than the outer diameter of the adjusting nut.

Further, the bottom plate of the washing machine is also provided with a relief hole communicating with the clamping hole, and the adjusting nut can move from the relief hole to be embedded in the clamping hole;

Preferably, the relief hole is a circular hole, and the aperture of the relief hole is larger than the distance of the longest diagonal of the adjusting nut.

Further, a limiting member is provided on the bottom plate of the washing machine, and the limiting member conflicts with the adjusting nut to restrict the movement of the adjusting nut in the length direction of the retaining hole.

Further, the positioning plug cap further includes a plugging portion plugged at the relief hole, and the radial size of the plugging portion is larger than the radial size of the relief hole.

Further, the positioning plug cover further includes a clamping portion, the clamping portion is a plurality of deformable positioning claws arranged on the positioning plug cover, the positioning claws can pass through the relief hole after being deformed , After restoring the original shape, it can be clamped in the relief hole.

Further, the positioning claw includes a first positioning claw and a second positioning claw, the first positioning claw is a plurality of claws provided on the blocking portion corresponding to the relief hole, the first The two positioning claws are at least a pair of claws provided on the blocking part corresponding to the locking hole.

The assembly of the adjustable foot and the bottom plate of the washing machine provided by the present invention eliminates the flanging holes on the sheet metal parts of the bottom plate of the box body, and replaces them with the clamping holes. The adjusting nut is directly clamped on the clamping hole of the bottom plate, which reduces the assembly It is difficult and increases the positioning of the blocking cover to limit the position. The positioning blocking cover not only plays the role of limiting, but also plays the role of blocking the way out, preventing workers from handling or using the user’s hands. Accidentally enters into the clearance hole or the card hole, causing scratches, etc.

In the present invention, since the foot screw and the adjusting nut are standard parts, they have good matching accuracy, which will increase the assembly efficiency of the adjustable foot and reduce the difficulty of assembly; in addition, the assembly of the bottom plate will reduce the flanging hole and the punching hole. The cost of mold and the frequency of subsequent maintenance are conducive to stable mold production.

The specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

Description of the drawings

Figure 1: A top view of the bottom plate of the washing machine of the present invention;

Figure 2: A side view of the bottom plate of the washing machine of the present invention;

Figure 3: A top view of the adjustable foot of the present invention and the locking hole of the bottom plate of the washing machine after assembly;

Figure 4: Side view after assembly of the adjustable foot of the present invention and the locking hole of the bottom plate of the washing machine;

Figure 5: The top view of the adjustable foot of the present invention and the bottom plate of the washing machine after assembly;

Figure 6: The top view of the adjustable foot of the present invention and the bottom plate of the washing machine after assembly;

Figure 7: A top view of the adjustable foot of the present invention, the bottom plate of the washing machine, and the limiter after being assembled;

Figure 8: Side view of the adjustable foot of the present invention, the bottom plate of the washing machine, and the stopper after being assembled;

Among them: 1. bottom plate; 2. retaining hole; 3. giving way hole; 4. adjusting nut; 41, positioning slot; 5. locking nut; 6. positioning plugging cover; 61, blocking part; 62, card Connecting part; 621, first positioning claw; 622, second positioning claw; 63, limit part; 631, limit surface; 7, support seat; 8, bolt.

Detailed ways

In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention. , But not used to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the pointed device or element must have a specific orientation or a specific orientation. The structure and operation cannot therefore be understood as a limitation of the present invention.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise clearly specified and limited. For example, they can be fixed or detachable. Connected or integrally connected; it can be mechanically or electrically connected; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present invention can be understood in specific situations.

Example one

As shown in Figures 3 and 4, this embodiment provides an adjustable foot, including: a support seat 7; a bolt 8, one end of the bolt 8 is fixedly connected to the support seat 7; an adjustment nut 4, the adjustment The nut 4 is threadedly connected to the other end of the bolt 8. The adjusting nut 4 is used to adjust the support height of the adjustable foot; the lock nut 5 is located between the adjusting nut 4 and the support base 7. On 8, the friction force between the locking nut 5 and the bolt 8 is used to realize the self-locking of the bolt 8 to ensure the height adjustability of the foot bolt 8. In the present invention, the foot bolt 8 and the adjusting nut 4 are standard parts, which have good matching accuracy, which will increase the assembly efficiency of the adjustable foot and reduce the difficulty of assembly. The adjusting nut 4 provided in this embodiment is provided with the The positioning structure for assembling the washing machine is directly assembled with the bottom plate of the washing machine through the positioning structure provided on the adjusting nut 4, which improves the assembly efficiency of the adjustable foot.

Specifically, the positioning structure is a positioning slot 41 opened on at least one outer wall of the adjusting nut 4; as a more preferred solution of this embodiment, the adjusting nut 4 is a hexagonal nut, and the positioning structure is a hexagonal nut. Positioning grooves 41 are opened on the two opposite outer wall surfaces; or, more preferably, the positioning structure is a one-week positioning groove 41 opened on the entire peripheral wall of the outer circumference of the hexagonal nut. The positioning structure of this embodiment is to directly open a positioning slot 4 on the adjusting nut 4, which is simple in structure and easy to shape, which greatly improves the production efficiency of the adjustable foot.

Example two

This embodiment provides a washing machine. The bottom plate of the washing machine is provided with the adjustable foot of the present invention for adjusting the height of the washing machine.

As shown in Figures 1 to 4, in this embodiment, the washing machine includes a washing machine bottom plate 1, the washing machine bottom plate 1 is provided with a clamping hole 2 through a stamping process, and the adjusting nut 4 is clamped in the clamping hole 2. Inside, the assembly of the adjustable foot and the washing machine is realized. In the prior art, most of the assembly of the foot and the washing machine is achieved by opening threaded holes on the bottom of the washing machine through a tapping machine, and the assembly of the washing machine and the foot is realized through bolts and threaded holes. In this embodiment, the clamping hole 2 is used instead of the threaded hole, and the assembly of the foot and the washing machine is realized by the way of clamping, which has high assembly efficiency and reduces assembly difficulty.

In this embodiment, the locking hole 2 is a long strip hole opened on the bottom plate 1 of the washing machine, the adjusting nut 4 is provided with the positioning slot 41 on at least one wall surface, and the locking hole 2 is at least one The long side is clamped in the positioning slot 41. Preferably, in order to enhance the stability of the connection, the positioning slot 41 is opened on the two opposite wall surfaces of the adjusting nut 4, and the positioning hole 2 The two long sides of the card are clamped in the positioning slot 41. More preferably, the adjusting nut 4 is a hexagon nut, and a hexagonal annular groove is formed along the outer peripheral wall of the hexagon nut, so that the positioning groove 41 on any two opposite wall surfaces of the hexagon nut can be clamped On the two long sides of the locking hole 2, the assembly efficiency of the adjusting nut 4 and the locking hole 2 is improved. In this embodiment, the locking hole 2 may be a long slit hole opened along the edge of the washing machine bottom plate 1, and the adjusting nut 4 can enter from the notched end and be assembled into the positioning hole 2 of the washing machine bottom plate 1.

In the above solution, the depth of the positioning slot 41 is slightly greater than the thickness of the bottom plate 1, so that the edge of the positioning hole 2 can just be snapped into the positioning slot 41, and the two long strips of the positioning hole 2 The distance between the sides is greater than the distance between the positioning grooves 41 on the two opposite outer wall surfaces of the adjusting nut 4, and the distance between the two long sides of the positioning hole 2 is less than the outer diameter of the adjusting nut 4 to ensure adjustment The nut 4 can be clamped in the positioning slot 41 and will not fall off from the clamping hole 2.

The assembly of the adjustable foot and the bottom plate of the washing machine provided in this embodiment eliminates the need to provide threaded holes on the sheet metal parts of the bottom plate and replaces it with a clamping hole. The adjusting nut is directly clamped on the clamping hole of the bottom plate, which reduces the assembly Difficulty, tapping on the sheet metal parts of the bottom plate of the box body, due to the low precision of the tapping machine, the assembly of the foot bolts is time-consuming and laborious; in addition, the replacement of the flanged holes on the assembled bottom plate will reduce the cost of the mold and the subsequent maintenance Frequency is conducive to stable mold production.

Example three

In this embodiment, on the basis of the second embodiment, a relief hole is provided on the bottom plate 1 of the washing machine to communicate with the clamping hole, and the adjusting nut can enter the clamping hole from the relief hole.

Specifically, as shown in Figures 5 and 6, a relief hole 3 communicating with the retaining hole 2 is formed on the washing machine bottom plate 1 through a stamping process, and the relief hole 3 is a cross-section of the external adjusting nut 4 A circular hole, the diameter of the circular hole is greater than the distance of the longest diagonal of the adjusting nut 4 to ensure that the adjusting nut 4 can freely pass through the relief hole 3, and can move through the relief hole 3 to be embedded in the clamping hole 2 Inside. Through the relief hole 3, the adjusting nut 4 can enter the clamping hole 2 from the relief hole 3 without entering the clamping hole 2 from the gap on the edge of the bottom plate 1, so that the clamping hole 2 is not limited to It must be set at the edge of the bottom plate 1 to increase the diversity of the foot position settings, and there is no need to open a gap on the bottom plate 1, which can enhance the stability of the bottom plate 1 and effectively avoid problems such as cracking of the bottom plate 1.

Example four

In this embodiment, a limiting member is provided on the basis of the third embodiment to limit the movement of the adjusting nut in the length direction of the retaining hole.

Specifically, a limiting member is provided on the bottom plate 1 of the washing machine, and the limiting member conflicts with the adjusting nut 4 and is used to limit the movement of the adjusting nut 4 in the length direction of the retaining hole 2. The limiting member It can be a limit bolt, a fixing sleeve, etc. fixedly arranged on the bottom plate 1.

In this embodiment, the limiting member is the positioning blocking cover 6 provided on the bottom plate 1 as an example for description.

Specifically, as shown in Figures 7 and 8, the positioning blocking cover 6 includes a limiting portion 63 for limiting the movement of the adjusting nut 4 in the length direction of the retaining hole 2, and the positioning The blocking cover 6 is close to the adjusting nut 4 and extends in the direction of the locking hole 2 to the side close to the adjusting nut 4 to form the limiting portion 63. More preferably, the limiting portion 63 is set against the side of the adjusting nut 4 as a limiting surface 631 matching the shape of the outer wall surface of the adjusting nut 4, and the limiting surface 631 is closely attached to the outer wall surface of the adjusting nut 4 The limit surface 631 is provided to interfere with the adjustment nut 4, which increases the contact area between the limit portion 63 and the adjustment nut 4, and can limit the movement of the adjustment nut 4 to the greatest extent.

In this embodiment, the positioning blocking cover 6 further includes a blocking portion 61 that is blocked at the relief hole 3. The blocking portion 61 is a circular blocking cover provided outside the relief hole 3. The radial dimension of the blocking cover is larger than the radial dimension of the relief hole 3, so the entire relief hole 3 is covered to prevent workers from accidentally reaching into the relief when carrying or using the washing machine. Inside the hole, causing scratches, etc.

In this embodiment, the positioning plug 6 further includes a clamping portion 62, which is a plurality of deformable positioning claws integrally provided with the positioning plug 6 by injection molding, and the positioning claws are deformed Then, it can pass through the relief hole 3, and can be clamped in the relief hole 3 after restoring its original shape. The limit piece and the bottom plate can be assembled by adopting the deformable claw clamping method, which is not only easy to assemble, but also High efficiency, and easy to disassemble and replace adjustable feet.

As shown in Figure 7, in order to further enhance the stability of the assembly of the positioning plug 6 and the bottom plate 1, the positioning claws not only include the first positioning claws 621 provided on the plugging portion 61 corresponding to the relief holes 3, but also corresponding The second positioning claws 622 provided on the blocking portion 61 for the retaining holes 2 are the three first positioning claws 621 provided on the blocking portion 61 corresponding to the relief holes 3 in this embodiment. Claws, three claws are arranged on the blocking portion 61 at intervals along the circumferential direction of the relief hole 3; in this embodiment, the second positioning claws 622 correspond to the two long sides of the retaining hole 2 respectively The second positioning pawl 622 is deformed and can be clamped on the two long sides of the positioning hole 2. The second positioning pawl 622 is located in the relief hole 3 and On the blocking portion 61 where the locking hole 2 is connected, the second positioning claw 622 is not limited to one pair, and multiple pairs can be provided to enhance stability.

In this embodiment, the position is limited by setting a positioning blocking cover. The positioning blocking cover used in this embodiment not only restricts the movement of the adjusting nut, but also blocks the clearance holes and the locking holes, preventing workers from During transportation or use, the user's hands may accidentally enter the relief hole or the card hole, causing scratches.

The above are only the preferred embodiments of the present invention, and do not limit the present invention in any form. Although the present invention has been disclosed as above in preferred embodiments, it is not intended to limit the present invention. Any technology familiar with this patent Without departing from the scope of the technical solution of the present invention, the personnel can use the technical content suggested above to make slight changes or modification into equivalent embodiments with equivalent changes, but any content that does not depart from the technical solution of the present invention is based on the technology of the present invention Essentially, any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the present invention.

Claims

An adjustable foot, characterized by comprising:

Support base;

A bolt, one end of the bolt is fixedly connected to the support seat;

An adjusting nut, which is threadedly connected to the other end of the bolt;

A lock nut, which is located on the bolt between the adjusting nut and the support seat;

A positioning structure for assembly is provided on the adjusting nut.
The adjustable foot according to claim 1, wherein the positioning structure is a positioning slot opened on at least one outer wall surface of the adjusting nut;

Preferably, the adjusting nut is a hexagonal nut, and the positioning structure is a positioning slot opened on two opposite outer wall surfaces of the hexagonal nut, or the positioning structure is a positioning opened on the entire peripheral wall of the outer periphery of the hexagonal nut Card slot.
A washing machine with adjustable feet according to claim 1 or 2, characterized by comprising a washing machine bottom plate, the washing machine bottom plate is provided with a locking hole, and the adjusting nut is clamped in the locking hole, Realize the assembly of adjustable feet and washing machine.
The washing machine according to claim 3, wherein the locking hole is an elongated hole opened on the bottom plate of the washing machine, and at least one side of the elongated hole is clamped in the positioning slot;

Preferably, the two long sides of the locking hole are locked in the positioning slot.
The washing machine according to claim 3, wherein the depth of the positioning slot is greater than the thickness of the bottom plate, and the distance between the two long sides of the positioning hole is greater than that of the two opposite outer walls of the adjusting nut The distance between the positioning slots, the distance between the two long sides of the locking hole is smaller than the outer diameter of the adjusting nut.
The washing machine according to any one of claims 3-5, characterized in that the bottom plate of the washing machine is further provided with a relief hole communicating with the clamping hole, and the adjusting nut can be moved from the relief hole and inserted into the clamping hole. Bit hole

Preferably, the relief hole is a circular hole, and the aperture of the relief hole is larger than the distance of the longest diagonal of the adjusting nut.
The washing machine according to claim 6, wherein a limiting member is provided on the bottom plate of the washing machine, and the limiting member conflicts with the adjusting nut.
The washing machine according to claim 7, wherein the limiting member is a positioning blocking cover provided on the bottom plate, the positioning blocking cover includes a limiting portion, and the limiting portion is arranged close to the side of the adjusting nut It is a limiting surface that matches the shape of the outer wall surface of the adjusting nut, and the limiting surface is closely attached to the outer wall surface of the adjusting nut.
The washing machine according to claim 8, wherein the positioning blocking cover further comprises a blocking portion blocked at the relief hole, and the radial size of the blocking portion is larger than the radial size of the relief hole.
The washing machine according to any one of claims 7-9, wherein the positioning blocking cover further comprises a clamping part, and the clamping part is a plurality of deformable positioning claws provided on the positioning blocking cover, The positioning claw can pass through the relief hole after being deformed, and can be clamped in the relief hole after being restored to its original shape.
The washing machine according to claim 10, wherein the positioning claw comprises a first positioning claw and a second positioning claw, and the first positioning claw is provided in the blocking portion corresponding to the relief hole. The second positioning claws are at least a pair of claws provided on the blocking portion corresponding to the locking hole.