WO2018033120A1

WO2018033120A1 - Foot with automatic telescoping function and washing machine thereof

Info

Publication number: WO2018033120A1
Application number: PCT/CN2017/097896
Authority: WO
Inventors: 纪虎; 杨林; 杨旭光; 宋秀顺
Original assignee: 青岛海尔洗衣机有限公司
Priority date: 2016-08-19
Filing date: 2017-08-17
Publication date: 2018-02-22
Also published as: CN107761315A

Abstract

A foot (101) with an automatic telescoping function and a washing machine thereof. The foot (101) is mounted at the bottom of the device, and comprises a hydraulic telescoping mechanism (1) and a roller (7), wherein the hydraulic telescoping mechanism (1) is connected to the roller (7), the roller (7) is driven by the hydraulic telescoping mechanism (1) to retract/extend out of the bottom of the device so as to fix/move the device, and the automatic telescoping roller (7) is hidden at the bottom of the device,. When in a static state, bottom fixing is used, when movement needs to be performed, the roller (7) automatically extends beyond the height of the bottom of the device, avoiding collision with a fixed foot (4), facilitating movement of the device, and the invention can be controlled alone, and is easy to maintain.

Description

Foot with automatic telescopic function and washing machine

Technical field

The invention belongs to the field of laundry equipment, and in particular to a foot having an automatic telescopic function and a washing machine thereof.

Background technique

Most of the early washing machines were equipped with feet at the bottom of the base. The feet were generally four and were installed at the corners of the base. For this type of washing machine, if you need to move the position before using the washing machine, it would be cumbersome to move, even requiring two. Personally lifted. In order to improve the deficiencies of the washing machine, a washing machine with a rolling roller has been invented. Since the rolling roller is supported on the ground during the washing machine, the movement is convenient and labor-saving, and the washing machine can be moved to the required one by one person. s position. However, most washing machines with rolling rollers on the market still have the following disadvantages: the washing machine is still supported by the rolling roller on the ground when it is stationary or in use, so that even in the course of use, even the limited position washing machine is produced. The vibration easily causes the washing machine to move, and there is a certain safety hazard.

In order to solve the above problems, a detachable or manually operated roller has been invented, and the foot is used in a fixed state, and the roller is used in moving. Chinese Patent Application No. CN97227285.2 discloses a lifting and adjustable universal turning type washing machine roller. It is equipped with four rocker type joints on the bottom plate of the washing machine. Each joint seat is connected with a universal ball type roller, and a regulating pressure wheel is arranged between the front front inclined plate and the bottom plate of the washing machine. On the frame, the extension head of the frame is attached with a handle lever, and the lever can be lifted and lowered to enable the washing machine to move flexibly, and the ball wheel does not support the washing machine after the washing machine is positioned.

Chinese Patent Application No. CN200710195124.X discloses a washing machine base equipped with a roller assembly. The washing machine base is provided with at least two roller assemblies, and the roller assembly is detachably connected to the washing machine base, and the roller assembly comprises a strip type roller bracket and at least two rollers disposed on the same surface of the supporting frame.

The Chinese patent application No. CN201320037667.X discloses a bottom structure of a washing machine. A rolling roller is respectively mounted on the left and right sides of the bottom of the base near the front side edge, and the rolling roller is supported in a state where the foot is supported on the ground. Hanging on the ground, when you need to move, tilt the washing machine to make the rolling roller touch the ground and the foot is suspended on the ground.

Chinese Patent Application No. CN97222121.2 discloses a liftable adjustable universal moving type washing machine. It is equipped with four piston type universal casters consisting of a foot base, a piston, a gland, a joint mother and a universal wheel on the bottom plate of the washing machine body. The casters are respectively connected by a pipe to the distributor, and the distributor is connected with the emptying valve. The multiple casters of this technology are connected to the same distributor and venting valve and cannot be controlled separately, which is not conducive to maintenance.

Therefore, there is an urgent need in the field of laundry equipment to realize the technology that the roller automatically expands and contracts, is convenient to move, and is easy to maintain.

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, to provide a foot with an automatic telescopic function and a washing machine thereof, which can hide the automatically retractable roller in the fixed foot, and use the fixed foot in the static state of the device. When it is necessary to move, the roller automatically extends beyond the height of the fixed foot to avoid bumping of the fixed foot, which is convenient to move, and can be controlled separately and is easy to maintain. .

In order to solve the above technical problems, the basic idea of adopting the technical solution of the present invention is:

A first object of the present invention is to provide a foot having an automatic telescopic function, which is mounted on the bottom of the apparatus, including a hydraulic telescopic mechanism and a roller, the hydraulic telescopic mechanism being coupled to the roller, the roller being contracted by the hydraulic telescopic mechanism In/out of the bottom of the device for fixing/moving the device.

The hydraulic telescopic mechanism includes a hydraulic cylinder for filling a hydraulic medium, a piston, and a connecting rod. The piston is disposed in a hydraulic cylinder, and one end of the connecting rod is connected to the piston, and the other end is provided with a roller.

Further, a heating mechanism is further included, and the hydraulic expansion mechanism drives the roller to protrude from the bottom of the device under the heating of the heating mechanism.

The heating mechanism is a heating resistor disposed in the hydraulic cylinder for heating the hydraulic medium, and the hydraulic medium is heated and expanded to push the piston and the connecting rod to drive the roller to protrude from the bottom of the device.

Further, one end of the connecting rod is fixedly connected with the piston, and the other end is a bent portion, which comprises an integrally formed horizontal rod and a vertical rod, and the horizontal rod of the bent portion passes through the center of the roller as a rotating shaft of the roller.

Further, the hydraulic telescopic mechanism further includes a reset elastic mechanism, and the reset elastic mechanism is sleeved on the connecting rod, and the upper end of the reset elastic mechanism abuts against the piston, and the lower end abuts against the inner wall of the hydraulic cylinder.

Further, the utility model further includes a fixed foot, the fixed foot is internally provided with a hollow chamber, and the hydraulic expansion mechanism and the roller are both disposed in the hollow chamber, and the roller is retracted/extended by the hydraulic expansion mechanism. A hollow chamber that secures the foot.

The fixed foot comprises a threaded column and a foot base, wherein the threaded column and the foot base are respectively provided with a hollow chamber; a partition is arranged between the hollow chamber of the threaded column and the hollow chamber of the foot base. a through hole is disposed in the partition plate; the hydraulic expansion mechanism is disposed in the hollow cavity of the threaded column, and is connected to the roller disposed in the hollow cavity of the foot base through the through hole, and the upper end of the partition is provided with a support frame. The hydraulic telescopic mechanism is fixedly coupled to the support frame.

Further, a control device for controlling the hydraulic expansion mechanism is separately included, and the control device is independently mounted on the device, or the independently installed control device is connected to the control panel of the device, or the control device is disposed in the control panel of the device.

A second object of the present invention is to provide a washing machine having the foot of the automatic telescopic function, a plurality of said feet being mounted at the bottom of the washing machine.

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

(1) The invention is fixed by using the bottom of the device or the fixed foot when the device is in a standing state, and the automatically retractable roller is hidden in the bottom or the fixed foot, which can save space.

(2) When the equipment needs to move, the roller can automatically extend and move the device horizontally; the roller exceeds the height of the fixed foot to avoid bumping of the fixed foot and facilitate movement.

(3) Each foot with automatic telescopic function can be independently controlled. When there is a problem with individual feet, the horizontal movement of the device can still be carried out, and it is convenient for maintenance.

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 perspective view of a fixed foot of the present invention;

Figure 2 is a plan view of the foot of the present invention having an automatic telescopic function;

Figure 3 is a cross-sectional view of the B-B of the present invention having an automatic telescopic function foot;

Figure 4 is a cross-sectional view of the C-C of the present invention having an automatic telescopic function foot;

Figure 5 is an exploded view of the foot of the present invention having an automatic telescopic function;

Figure 6 is a washing machine with an automatic telescopic foot.

In the picture: 101 foot, 1 hydraulic retractable mechanism, 2 hydraulic cylinders, 3 pistons, 4 fixed feet, 5 heating mechanism, 6 links, 7 rollers, 8 return springs, 9 partitions, 10 support frames, 11 threaded columns , 12 lock nut, 13 foot base, 14 foot pad, 15 bends, 16 horizontal bars, 17 vertical bars.

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.

Embodiment 1

As shown in Figures 3-5, the present invention provides a foot 101 having an automatic telescopic function, mounted at the bottom of the apparatus, including a hydraulic telescopic mechanism 1 and a roller 7, the hydraulic telescopic mechanism 1 being coupled to a roller 7, the roller The bottom of the device is retracted/extended under the driving of the hydraulic telescopic mechanism to fix/move the device.

The foot 101 with the telescopic function provided in this embodiment can be installed on a household appliance such as a washing machine or a refrigerator, or can be installed on an experimental instrument or an industrial device to facilitate horizontal movement of the device.

The hydraulic telescopic mechanism can be extended or contracted under the action of pressure, etc., thus driving the roller to move. When the device is in a static state, the hydraulic telescopic mechanism contracts, the roller retracts into the bottom of the device, and the device is fixed by the bottom plate or the fixed foot; when the device needs to move, the hydraulic telescopic mechanism protrudes, and the roller extends to the bottom to prop up the device. , horizontal movement, convenient and labor-saving. The hydraulic telescopic mechanism can be directly connected to the equipment bottom plate or fixed to the fixed foot.

Further defined, the hydraulic telescopic mechanism comprises a hydraulic cylinder 2 for filling a hydraulic medium, a piston 3 and a connecting rod 6, the piston 3 being disposed in the hydraulic cylinder 2, the connecting rod 6 being connected at one end to the piston 3, and The roller 7 is provided at one end.

The hydraulic cylinder of the hydraulic telescopic mechanism is filled with hydraulic medium, and the hydraulic medium pushes the piston movement through volume change. The volume change of the hydraulic medium can be achieved by filling or discharging the hydraulic medium, or by the thermal expansion of the hydraulic medium itself, cooling and shrinking. The change of the volume of the hydraulic medium drives the movement of the piston in the hydraulic cylinder to provide power for the automatic expansion and contraction of the roller.

The piston and the connecting rod of the hydraulic telescopic mechanism can be integrated or detachably connected; the connecting rod can be a piston rod or a roller bracket, or a piston rod and a roller bracket are connected to move the piston. Change to the movement of the roller. When the piston moves downward, the roller protrudes downward. When the piston moves upward, the roller retracts to realize automatic control of the roller expansion and contraction.

The roller 7 can be a universal wheel, etc., and after extending and fixing the hollow chamber in the foot, the device is moved by rolling, which is more labor-saving and convenient.

Embodiment 2

As shown in FIG. 3-4, the embodiment is further defined by the first embodiment. The foot with the automatic telescopic function provided by the embodiment further includes a heating mechanism 5, and the hydraulic expansion mechanism of the heating mechanism is heated. Lower drive roller extension The bottom of the preparation.

The heating mechanism of the embodiment heats the hydraulic medium in the hydraulic telescopic mechanism, and may be disposed in the hydraulic cylinder or may be disposed outside the hydraulic cylinder. When the hydraulic medium in the hydraulic cylinder is heated, the volume expands, pushing the piston and the connecting rod downward, and the roller at the other end of the connecting rod is extended to the bottom of the device to prop up the device, and the device can be moved. When the heating mechanism stops working, the hydraulic medium cools and the volume shrinks. The piston moves upward under the gravity of the device, and the roller is retracted to the bottom of the device, and the device is fixed by the bottom.

Further, the heating mechanism is a heating resistor disposed in the hydraulic cylinder, and may be a heating wire for heating the hydraulic medium, and the hydraulic medium is heated and expanded to push the piston and the connecting rod to drive the roller to protrude from the bottom of the device.

The heating resistor is a heating wire, immersed in a hydraulic medium, can heat the hydraulic medium in a short time, the hydraulic medium is rapidly expanded, and the roller quickly protrudes from the bottom of the device, saving time and labor, and being convenient and quick.

Embodiment 3

As shown in FIG. 3-5, the hydraulic expansion mechanism of the embodiment further includes a reset elastic mechanism, and the reset elastic mechanism may be a return spring 8 sleeved on the connecting rod 6, and the upper end of the reset elastic mechanism abuts The piston 3 has a lower end that abuts against the inner wall of the hydraulic cylinder 2.

The return elastic mechanism described in this embodiment is a return spring 8 which is sleeved on a connecting rod located in the hydraulic cylinder, the upper end abuts against the piston, and the lower end abuts against the inner wall of the hydraulic cylinder, which can buffer the up and down movement of the piston, or After the movement of the equipment is completed, when the hydraulic medium cools and contracts, the auxiliary piston returns to the position before the heating, which helps the roller to quickly retract to the bottom of the device.

Embodiment 4

The foot provided with the automatic telescopic function of the embodiment further includes a fixing foot 4 having a hollow chamber inside, and the hydraulic expansion mechanism 1 and the roller 7 are disposed in the hollow chamber, and the roller 7 The hollow chamber of the fixed foot is retracted/extended under the driving of the hydraulic telescopic mechanism 1.

The fixed foot is the support leg of the device. When the device is in the resting state, the device can be leveled by adjusting the fixed foot. In the embodiment, the middle portion of the fixed foot is a hollow chamber for providing a hydraulic expansion mechanism and a roller therein. The camera is hidden in the fixed foot when it is in a static state, saving space and eliminating the pressure of the roller.

When the heating mechanism in the hydraulic cylinder works, the volume of the hydraulic medium becomes larger, which can push the piston to move, and then push the roller indirectly connected with the piston to push the inside of the fixed foot, contact with the ground, prop up the device, fix the foot to hang, and realize the washing machine. The movement is convenient and fast, and avoids the bump of the fixed foot.

Embodiment 5

As shown in FIG. 1 to FIG. 5, the fixed foot 4 of the embodiment includes a threaded post 11, a footrest 13 and a threaded post. Lock nut 12.

The inside of the threaded column 11 and the foot base 13 are provided with a hollow chamber 4, and the two hollow chambers are in communication. The hydraulic telescopic mechanism 1 is fixedly coupled to the inner wall of the threaded column 11, and is disposed in the hollow chamber of the threaded column 11, and the roller 7 is disposed in the hollow chamber of the foot base. The lower edge of the foot base is also provided with an embedded foot pad 14.

By adjusting the threaded column up and down, and locking with the lock nut, the device can be leveled under the static state. The foot pad reduces noise and avoids friction on the ground. The width of the foot base is larger than the diameter of the threaded post, and the support effect is more stable.

The hydraulic telescopic mechanism and the roller are respectively arranged with the internal space of the threaded column and the foot base of the fixed foot, which can save space and be perfectly hidden in a static state.

In a further solution, a partition 9 is disposed between the hollow chamber of the threaded column and the hollow chamber of the foot base, and the partition is provided with a through hole, the connecting rod of the hydraulic expansion mechanism passes through the through hole, and one end is connected with the piston. The other end is connected to the roller.

The connecting rod 6 is defined in the through hole to reduce the sway and to increase the stability of the roller when supporting the washing machine.

Alternatively, the connecting rod 6 is connected to the piston at one end and the bent portion 15 at the other end, including the integrally formed horizontal rod 16 and the vertical rod 17, and the horizontal rod of the bent portion passes through the center of the roller as the rotating shaft of the roller.

In a further aspect, the upper end of the partition is provided with a support frame 10 integrally formed with the partition plate, and the support frame 10 is fixedly connected to the hydraulic expansion and contraction mechanism 1.

In addition, the technical solution may be that the foot base 13 and the threaded column 11 are integrally formed, and at the same time, the foot base 13 is integrally formed with the partition plate 9, the support frame 10, and the hydraulic expansion mechanism 1, wherein the partition is a foot. The upper wall of the seat, the support frame and the hydraulic expansion mechanism are all located in the hollow chamber of the threaded column. Such an integrally formed structure can greatly increase the stability of the foot.

Due to the up and down movement of the roller, the direction of the force that propels the washing machine is also the up and down direction. A partition plate is arranged in the hollow cavity of the fixed foot to fix the oil cylinder on the partition plate, so that the force receiving direction of the force point is uniform, which is more stable than the way of connecting the fixed foot side wall.

Embodiment 6

The device of the embodiment is provided with four automatically extendable legs, and a control device for controlling and controlling the hydraulic expansion mechanism is further provided. The control device is placed on the housing of the device for easy operation. The control device is a control switch.

In a further solution, the control switch is connected to the control panel of the device, or the control switch is arranged in the control panel of the device. The foot can be directly controlled by the control panel of the control unit, making the function of the device easier to concentrate.

Each automatic telescopic foot can be equipped with a control device, so each foot can be independently controlled, or each foot control device can be connected to a total control switch to achieve simultaneous control of multiple feet. Therefore, when individual feet When problems occur, the horizontal movement of the equipment can still be carried out, and it is also convenient for maintenance.

Example 7

As shown in FIG. 6, the embodiment provides a washing machine having the foot of the automatic telescopic function, and four of the legs having an automatic telescopic function are installed on the base of the washing machine.

work process:

1. When the washing machine is in a stationary state, the washing machine is leveled by adjusting the threaded column 11 of the fixed foot and locking with the lock nut 12.

3. When the washing machine needs to be moved, the hot wire is heated by the control panel of the washing machine or by triggering the corresponding control switch, and the volume of the hydraulic medium located in the hydraulic cylinder is increased, pushing the piston 3 to move downward, and then pushing through the connecting rod 6 The roller touches the ground until it exceeds the height of the foot pad, and the washing machine can move freely.

4. When the washing machine needs to run or stand still, the heating wire is powered off, at this time the volume of the hydraulic medium shrinks. At this time, under the pressure of the return spring 8, the roller 7 retracts and fixes the inside of the foot, and the washing machine is fixed.

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

A foot having an automatic telescopic function, installed at the bottom of the device, is characterized by comprising a hydraulic telescopic mechanism and a roller, the hydraulic telescopic mechanism being connected to the roller, the roller being retracted/extended by the hydraulic telescopic mechanism The bottom of the device is used to fix/move the device.
A foot having an automatic telescopic function according to claim 1, wherein said hydraulic telescopic mechanism comprises a hydraulic cylinder, a piston and a connecting rod for filling a hydraulic medium, said piston being disposed in a hydraulic cylinder, said One end of the connecting rod is connected to the piston, and the other end is provided with a roller.
The foot having an automatic telescopic function according to claim 1 or 2, further comprising a heating mechanism, wherein the hydraulic expansion mechanism drives the roller to extend from the bottom of the device under the heating of the heating mechanism.
The foot with automatic telescopic function according to claim 3, wherein the heating mechanism is a heating resistor disposed in the hydraulic cylinder for heating the hydraulic medium, and the hydraulic medium is heated to promote the piston and the connecting rod. Drive the roller out of the bottom of the device.
The foot with automatic telescopic function according to claim 2, wherein one end of the connecting rod is fixedly connected with the piston, and the other end is a bent portion, including an integrally formed horizontal rod and a vertical rod, the curved portion The horizontal rod of the fold passes through the center of the roller as the shaft of the roller.
A foot with an automatic telescopic function according to any of claims 1-5, wherein the hydraulic telescopic mechanism further comprises a reset elastic mechanism, the reset elastic mechanism is sleeved on the connecting rod, and the reset elastic mechanism The upper end abuts the piston and the lower end abuts against the inner wall of the hydraulic cylinder.
A foot with an automatic telescopic function according to any of claims 1-6, further comprising a fixed foot, the fixed foot is internally provided with a hollow chamber, and the hydraulic expansion mechanism and the roller are disposed in a hollow Inside the chamber, the roller is retracted/extended to the hollow chamber of the fixed foot by the hydraulic telescopic mechanism.
The foot with automatic telescopic function according to claim 7, wherein the fixed foot comprises a threaded column and a foot base, and the threaded column and the foot base are respectively provided with a hollow chamber; the threaded column a partition is disposed between the hollow chamber and the hollow chamber of the foot base, and the partition is provided with a through hole; the hydraulic expansion mechanism is disposed in the hollow chamber of the threaded column, passes through the through hole and is disposed at the foot The roller in the hollow chamber of the seat is connected, the upper end of the partition is provided with a support frame, and the hydraulic expansion mechanism is fixedly connected to the support frame.
A foot having an automatic telescopic function according to any of claims 1-8, further comprising control means for controlling the hydraulic expansion mechanism, the control device being independently mounted on the device, or independently mounted control device and device The control panels are connected or the control unit is placed in the control panel of the device.
A washing machine having an automatic telescopic functioning foot according to any one of claims 1-9, The plurality of said feet are mounted on the bottom of the washing machine.