CN112810379A - Mobile device - Google Patents

Abstract

The invention belongs to the technical field of carrying tools, and particularly relates to a moving device. The invention aims to solve the problems of time and labor waste, low efficiency and poor user experience of the conventional method for carrying household appliances by manpower. The moving device comprises at least three caster assemblies, wherein the caster assemblies are detachably fixed at the bottom of the household appliance, and form a supporting plane at the bottom of the household appliance, so that the household appliance is moved, the moving is time-saving and labor-saving, and the mounting efficiency of the household appliance is improved. Even in narrow and small installation space, mobile device steadily supports domestic appliance to make domestic appliance steadily remove, reduce the probability that scratch floor and wall, domestic appliance collided with the problem, improve user's experience degree. In addition, mobile device includes at least three truckle subassembly, for the removal shallow among the prior art, truckle subassembly is small, portable, makes things convenient for after-sale installer's carrying, can not increase after-sale installer's work burden.

Description

Mobile device

Technical Field

The invention belongs to the technical field of carrying tools, and particularly relates to a moving device for moving household appliances.

Background

At present, the installation process of the household appliance is as follows: after-sale installation personnel carry the household appliances to the door of a user, and after the user opens the box and checks the machine without errors, the after-sale installation personnel carry the household appliances to the installation positions of the indoor household appliances. In the process of moving the household appliance from the door of the user to the indoor installation position, two or more persons are required to move the household appliance to the installation position.

The method for manually carrying the household appliance is time-consuming, labor-consuming and low in efficiency, and can be used for scratching the floor and the wall of a user or even colliding with the body of the household appliance in the carrying process, particularly in narrow mounting spaces, so that the user experience is poor.

Accordingly, there is a need in the art for a new mobile device that can be used to move a home appliance to solve the above-mentioned problems.

Disclosure of Invention

In order to solve the above problems in the prior art, that is, to solve the problems that the prior method for carrying the household appliance by manpower is time-consuming and labor-consuming, has low efficiency, and is difficult to avoid scratching the floor and wall of a user or even colliding with the body of the household appliance in the carrying process, especially in some narrow installation spaces, the user experience is poor, the invention provides a mobile device, which comprises: at least three caster assemblies detachably secured to a bottom of the household appliance; the caster assembly forms a support plane that supports the household appliance.

In a preferred technical solution of the above-mentioned mobile device, the mobile device includes four caster assemblies, and the four caster assemblies are respectively detachably and fixedly connected with feet of the household appliance.

In a preferred embodiment of the above moving device, the caster assembly is clamped to the foot.

In the preferable technical scheme of the above moving device, the caster assembly comprises a caster and a connecting piece fixedly connected with the caster, and the connecting piece is used for being clamped with the footing.

In a preferred embodiment of the above moving device, the connecting member includes a first connecting wall, and a fixing wall and a clamping wall that are disposed at an interval, and first ends of the fixing wall and the clamping wall are connected through the first connecting wall; the fixed wall with truckle fixed connection, first joint opening has been seted up to the second end of joint wall for with footing joint.

In a preferred technical solution of the above moving device, the connecting member further includes a buffer wall and a second connecting wall, two ends of the second connecting wall are respectively connected to the second end of the clamping wall and the buffer wall, the buffer wall is located between the clamping wall and the fixing wall, and a buffer space is provided between the buffer wall and the clamping wall; and a second clamping opening is formed in the position, opposite to the first clamping opening, of the second connecting wall and the buffer wall.

In a preferred embodiment of the above-mentioned mobile device, the fixing wall, the first connecting wall, the engaging wall, the second connecting wall, and the buffering wall are integrally formed as a single piece.

In a preferred technical solution of the above moving device, the connecting member is provided with a first mounting hole; the caster wheel assembly further comprises a locking nut, and the upper end face of the locking nut is abutted to the bottom foot; the caster comprises a stud, and the stud penetrates through the first mounting hole and then is in threaded connection with the locking nut.

In a preferred technical solution of the above moving device, the connecting member is provided with a second mounting hole; the caster comprises a connecting flange, and the connecting flange is provided with a third mounting hole which is axially corresponding to the second mounting hole; the caster wheel assembly further comprises a bolt and a fixing nut, and the bolt sequentially penetrates through the second mounting hole and the third mounting hole to be in threaded connection with the fixing nut.

In a preferred embodiment of the above-mentioned mobile device, the caster comprises a mounting seat, a rolling wheel and a rotating shaft; the mounting seat comprises a mounting top plate, a first side plate and a second side plate, wherein the first side plate and the second side plate are oppositely arranged on the bottom surface of the mounting top plate at intervals; the rolling wheel is positioned in a spacing space between the first side plate and the second side plate; the rotating shaft penetrates through the first rotating hole, the rolling wheel and the second rotating hole.

The moving device comprises at least three caster assemblies, wherein the caster assemblies are detachably fixed at the bottom of the household appliance and form a supporting plane at the bottom of the household appliance, so that the household appliance is moved, time and labor are saved, and the installation efficiency of the household appliance is improved. Even in narrow and small installation space, mobile device steadily supports domestic appliance to make domestic appliance steadily remove, reduce the probability that scratch floor and wall, domestic appliance collided with the problem, improve user's experience degree. In addition, mobile device includes at least three truckle subassembly, for the removal shallow among the prior art, truckle subassembly is small, portable, makes things convenient for after-sale installer's carrying, can not increase after-sale installer's work burden.

Drawings

Preferred embodiments of the mobile device of the present invention will be described below with reference to the accompanying drawings.

The attached drawings are as follows:

FIG. 1 is a schematic structural view of a caster assembly according to an embodiment of the present invention;

FIG. 2 is an exploded view of a caster assembly provided in accordance with one embodiment of the present invention;

FIG. 3 is a schematic view of a connection member of a caster assembly according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a caster assembly according to a second embodiment of the present invention;

FIG. 5 is an exploded view of a caster assembly provided in accordance with a second embodiment of the present invention;

fig. 6 is a schematic structural diagram of a connection member of a caster assembly according to a second embodiment of the present invention.

In the drawings: 1. a caster assembly; 11. a first caster; 111. a stud; 112. installing a top plate; 113. a first side plate; 114. a rolling wheel; 115. a rotating shaft; 116. a limit nut; 117. a bearing end cap; 12. a connecting member; 121. a first connecting wall; 122. a fixed wall; 1221. a first mounting hole; 1222. a second mounting hole; 123. a clamping wall; 1231. a first clamping opening; 124. a buffer wall; 1241. a second clamping opening; 125. a second connecting wall; 126. a buffer space; 13. a second caster; 131. a connecting flange; 1311. a third mounting hole; 132. a first connecting plate; 133. a braking member; 14. locking the nut; 141. a connecting portion; 142. a support portion; 143. a threaded hole; 15. a bolt; 16. fixing a nut; 2. footing; 21. supporting legs; 22. a footing nut; 23. a screw.

Detailed Description

First, it should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications.

Next, it should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "inside", "outside", and the like are based on the direction or positional relationship shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or member must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The installation position of the household appliances such as the washing machine, the vertical air conditioner and the like may be uneven, and therefore, the household appliances such as the washing machine, the vertical air conditioner and the like are generally provided with bottom feet on the bottom surface of the shell, and the bottom feet can be adjusted to achieve a balanced placement state so as to stabilize the household appliances. Taking a washing machine as an example, the bottom of a housing of the existing washing machine is generally provided with a bottom foot, the bottom foot comprises a supporting leg 21, a bottom foot nut 22 and a screw 23, the bottom of the screw 23 is connected with the supporting leg 21, the top of the screw 23 is screwed into the bottom of the housing, and the height of the washing machine is adjusted by adjusting the length of the screw 23 screwed into the bottom of the housing. After adjusting the foot height, the foot nut 22 is tightened to keep it fixed. The supporting legs 21 may be made of rubber. The bottom of the screw 23 is provided with a connecting sheet, and the supporting legs 21 are coated on the outer side of the connecting sheet. The supporting legs 21 are made of rubber, which not only can prevent the ground from being scratched in the moving process, but also can buffer the vibration of the washing machine to a certain extent.

It should be noted that, although the embodiment of the present invention is described with reference to a washing machine, the mobile device provided in the embodiment of the present invention may also be applied to other household appliances such as a vertical refrigerator and a freezer, and other devices that need to be moved, and a usage scenario of the mobile core device provided in the embodiment of the present invention is not limited herein.

The following describes a preferred embodiment of the mobile device of the present invention with reference to the structure of the bottom foot of the washing machine.

First, referring to fig. 1 and 4, fig. 1 is a schematic structural diagram of a caster assembly according to a first embodiment of the present invention, and fig. 4 is a schematic structural diagram of a caster assembly according to a second embodiment of the present invention.

As shown in fig. 1 and 4, the mobile device of the present invention includes: at least three caster assemblies 1, the caster assemblies 1 are detachably fixed to the bottom of the home appliance, and the caster assemblies 1 form a support plane supporting the home appliance.

Specifically, the mobile device may include three caster assemblies 1, the three caster assemblies 1 being detachably fixed to the bottom of the household appliance, in order to support the household appliance without toppling, the three caster assemblies 1 forming a support plane, that is, the mounting positions of the three caster assemblies 1 are not on the same straight line, that is, one of the caster assemblies 1 is out of the line of the mounting positions of the other two caster assemblies 1, that is, the mounting positions of the three caster assemblies 1 form a triangular support plane. The embodiment of the present invention does not limit the specific installation positions of the three caster assemblies 1, and those skilled in the art can determine the installation positions according to the specific size of the household appliance, the mobile environment, and the like.

The mobile device can also include four caster assemblies 1, and four caster assemblies 1 detachable are fixed in the bottom of domestic appliance, do not topple over in order to support domestic appliance, and four caster assemblies 1 form the support plane, promptly, four caster assemblies 1's mounted position are not on same straight line. The four caster assemblies 1 may be installed in a rectangular, parallelogram or other irregular quadrilateral shape, which is not limited by the embodiment of the present invention.

Of course, the mobile core device may further include five, six, seven, etc. caster assemblies 1, the plurality of caster assemblies 1 may be detachably fixed to the bottom of the household appliance, and the plurality of caster assemblies 1 form a support plane in order to support the household appliance without tilting. The number of caster assemblies 1 included in the mobile device is not limited by those skilled in the art, and may be determined by those skilled in the art according to the size of a specific household appliance to be used, and the like.

The caster component 1 can be detachably fixed at the bottom of the household appliance in various fixing modes, for example, the caster component 1 can comprise a stud, a threaded hole is formed in the bottom of the household appliance, and the stud of the caster component 1 is in threaded connection with the threaded hole in the bottom of the household appliance; for another example, the caster wheel assembly 1 is provided with a clamping buckle, the bottom of the household appliance is provided with a clamping opening, and the clamping buckle is clamped in the clamping opening, so that the caster wheel assembly 1 is fixed at the bottom of the household appliance; for another example, the caster assembly 1 includes a first mounting seat, a first pin hole is disposed on the first mounting seat, a second mounting seat is disposed at the bottom of the household appliance, a second pin hole is disposed on the second mounting seat, and the pin shaft is inserted into the first pin hole and the second pin hole, so that the caster assembly 1 is fixed at the bottom of the household appliance. The embodiment of the present invention is not limited to the way in which the caster assembly 1 is detachably fixed to the bottom of the household appliance.

The home appliance generally comprises an outer housing, and the caster assembly 1 may be detachably fixed to a bottom plate of the outer housing of the home appliance. The bottom plate of the outer shell of the household appliance is generally provided with feet, and the caster wheel component 1 can also be detachably fixed on the feet arranged at the bottom of the household appliance. The embodiment of the present invention does not limit the installation position of the caster assembly 1.

The caster assembly 1 may include casters and mounting members, wherein the casters may be conventional casters, casters for universal caster, brake caster, etc., and the mounting members are fixed to the top of the casters for detachable fixed connection to the bottom of the household appliance, where the specific structure of the caster assembly 1 is not limited.

When moving a household appliance, such as a washing machine and a refrigerator, after-sales installers detachably install at least three caster assemblies 1 at the bottom of the household appliance, and the caster assemblies 1 form a support plane at the bottom of the household appliance to support the household appliance from falling; then, after-sale installers push the household appliance to the installation position; finally, the after-sales installer detaches the caster assemblies 1 from the bottom of the household appliance, completing the movement of the household appliance.

It should be noted that, the structure, function and effect of the mobile device provided in the embodiment of the present invention are described by taking a mobile household appliance as an example. However, the mobile device according to the embodiment of the present invention may also be used to move other devices that need to be moved, such as a battery box.

The moving device provided by the embodiment of the invention comprises at least three caster assemblies, wherein the caster assemblies are detachably fixed at the bottom of the household appliance, and a supporting plane is formed at the bottom of the household appliance, so that the household appliance is moved, the moving is converted into the moving, the time and the labor are saved, and the mounting efficiency of the household appliance is improved. Even in narrow and small installation space, mobile device steadily supports domestic appliance to make domestic appliance steadily remove, reduce the probability that scratch floor and wall, domestic appliance collided with the problem, improve user's experience degree. In addition, mobile device includes at least three truckle subassembly, for the removal shallow among the prior art, truckle subassembly is small, portable, makes things convenient for after-sale installer's carrying, can not increase after-sale installer's work burden.

Generally, the bottom of a home appliance such as a washing machine, a refrigerator, etc. is provided with four feet 2 to put the home appliance in a balanced placement position. In order to avoid that the mounting position of the caster assembly 1 is reset on the bottom plate of the outer housing of the household appliance, which causes designers to redesign the outer housing of the household appliance and increases the product cost, in a preferred embodiment, the moving device is mounted on the foot 2 of the household appliance. Specifically, the mobile device comprises four caster assemblies 1, and the four caster assemblies 1 are respectively detachably and fixedly connected with feet 2 of the household appliance.

The mobile device comprises four caster assemblies 1, wherein the four caster assemblies 1 are detachably fixed on four bottom feet 2 of the household appliance respectively, the universality of the mobile device can be improved, and the mounting points of the caster assemblies 1 are not required to be specially redesigned on the bottom plate of the household appliance shell. Four truckle subassembly 1 forms the rectangle and supports the plane, support domestic appliance that can be more steady, further avoid domestic appliance to empty at the removal in-process.

The truckle assembly 1 can dismantle fixed connection's mode with footing 2 has the multiple, for example, truckle assembly 1 is provided with the double-screw bolt, is provided with the screw hole with double-screw bolt threaded connection on the footing 2, realizes truckle assembly 1 and footing 2's the fixed connection that can dismantle through double-screw bolt and screw hole threaded connection. For another example, the caster wheel assembly 1 is provided with a first mounting seat, the first mounting seat is provided with a first pin hole, the bottom foot 2 is provided with a second mounting seat, the second mounting seat is provided with a second pin hole, and the second mounting seat is penetrated through the first pin hole and the second pin hole through a pin shaft, so that the caster wheel assembly 1 is fixedly connected with the bottom foot 2 in a detachable manner.

In order to improve the efficiency of mounting and dismounting the caster wheel assembly 1 and the foot 2 of the mobile device, in an alternative embodiment, the caster wheel assembly 1 is clamped with the foot 2. For example, the caster wheel assembly 1 is provided with a clamping groove for accommodating the bottom foot 2, and the bottom foot 2 is clamped with the clamping groove; for another example, the caster wheel assembly 1 is provided with a buckle which is clamped with the bottom foot 2; also for example, the caster assembly 1 is provided with a snap opening, with which the foot 2 is snapped. This embodiment mobile device, truckle subassembly 1 and 2 joints of footing for the installation of truckle subassembly 1 and footing 2, dismantlement are simple, quick, are favorable to improving domestic appliance's installation effectiveness, improve user experience degree.

In an alternative embodiment, with continued reference to fig. 1 and 4, the caster assembly 1 includes a caster and a connector 12 fixedly connected to the caster, the connector 12 for snapping onto the foot 2.

The caster assembly 1 comprises a caster and a link 12, wherein the caster may have a variety of configurations, for example, with reference to fig. 1, the caster may be a first caster 11; for another example, the caster may be a second caster 13, and the second caster 13 is provided with a brake device; also for example, the caster may be a swivel caster, and the specific configuration of the caster is not limited herein.

The caster is fixedly connected with the connecting piece 12, for example, the connecting piece 12 can be clamped on the caster; for another example, the connecting member 12 may be fixed to the caster by screws; for another example, the connection member 12 is provided with a threaded hole, and the connection member is fixed to the caster by a bolt and a nut, but the fixed connection manner between the connection member 12 and the caster is not limited, and those skilled in the art can design the fixed connection manner between the connection member 12 and the caster according to the specific structure of the caster.

Connecting piece 12 is used for being connected with footing 2 joint, realizes that truckle subassembly 1 is connected with footing 2's joint. The connecting member 12 may be a clamping plate, the connecting member 12 may be a clamping post, the connecting member 12 may also be a clamping hook, and the like, and the specific shape and structure of the connecting member 12 are not limited herein. The connecting piece 12 can be provided with a clamping opening, and the bottom foot 2 is clamped in the clamping opening; the connecting piece 12 can be provided with a clamping buckle, and the bottom foot 2 is clamped with the clamping buckle to realize the clamping of the caster wheel assembly 1 and the bottom foot 2.

In an alternative embodiment of the clamping connection of the connecting member 12 to the foot 2, the connecting member 12 is provided with a clamping opening, and the clamping opening is directly clamped to the foot 2, so that a person skilled in the art does not need to make any modification on the foot 2, and the universality of the mobile device according to the embodiment of the present invention is further improved.

Fig. 2 is an exploded view of a caster assembly according to a first embodiment of the present invention, fig. 3 is a schematic structural view of a link of the caster assembly according to the first embodiment of the present invention, fig. 5 is an exploded view of a caster assembly according to a second embodiment of the present invention, and fig. 6 is a schematic structural view of a link of the caster assembly according to the second embodiment of the present invention.

Referring to fig. 3 and 6, in a specific embodiment, the connecting member 12 includes a first connecting wall 121, and a fixing wall 122 and a clamping wall 123 which are oppositely spaced, and first ends of the fixing wall 122 and the clamping wall 123 are connected by the first connecting wall 121; fixed wall 122 and truckle fixed connection, first joint opening 1231 has been seted up to the second end of joint wall 123 for with footing 2 joint.

The fixing wall 122 and the clamping wall 123 are parallel and spaced at a preset distance, the fixing wall 122 and the clamping wall 123 are both arranged on the same side of the first connecting wall 121, the first ends of the fixing wall 122 and the clamping wall 123 are both connected with the first connecting wall 121, and the fixing wall 122, the first connecting wall 121 and the clamping wall 123 form a structure similar to a C shape. Alternatively, the fixing wall 122 and the catching wall 123 are both perpendicular to the first connecting wall 121.

The fixed wall 122 is fixedly connected with the caster 1, for example, the fixed wall 122 is provided with an installation hole, and a fastening bolt passes through the installation hole and is in threaded connection with a nut, so that the fixed wall 122 is fixedly connected with the caster 2; for another example, the fixing wall 122 is provided with a clamping column, the caster 1 is provided with a clamping groove clamped with the clamping column, and the fixing wall 122 is fixedly connected with the caster 1 by clamping the clamping column with the clamping groove. The fixing connection between the fixing wall 122 and the caster 1 is not limited, and those skilled in the art can design the fixing connection according to the specific structure of the caster 1.

The second end of the clamping wall 123 is provided with a first clamping opening 1231 for clamping with the bottom leg 2. The first clamping opening 1231 extends from the second end of the clamping wall 123 to the first end thereof, and the first clamping opening 1231 is a long strip-shaped opening. With continued reference to fig. 1 and 4, foot nut 22 of foot 2 snaps into first snap opening 1231. The width of first snap opening 1231 may be the same as the outer diameter of foot nut 22, or alternatively, the width of first snap opening 1231 may be greater than the outer diameter of foot nut 22 to accommodate more sized foot 2 configurations. The embodiment of the present invention does not limit the specific size of the first clamping opening 1231.

Note that the length of the first snap opening 1231 is the dimension in the X direction in fig. 3 and 6, and the width of the first snap opening 1231 is the dimension in the Y direction in fig. 3 and 6. Also, the Z direction shown in fig. 3 and 6 is a direction perpendicular to the ground.

With continued reference to fig. 1 and 4, when the foot 2 is clamped in the first clamping opening 1231, the supporting leg 21 of the foot 2 is located in the space between the clamping wall 123 and the fixing wall 122, and the supporting leg 21 abuts against the top surface of the caster 11 to bear the weight of the household appliance.

In order to prolong the service life of the connecting member 12 and enable the caster assembly 1 to absorb the impact, with reference to fig. 1 and 3, and fig. 4 and 6, the connecting member 12 further includes a buffer wall 124 and a second connecting wall 125, two ends of the second connecting wall 125 are respectively connected to the second end of the clamping wall 123 and the buffer wall 124, the buffer wall 124 is located between the clamping wall 123 and the fixing wall 122, and a buffer space 126 is provided between the buffer wall 124 and the clamping wall 123; the second connecting wall 125 and the buffering wall 124 are provided with a second clamping opening 1241 at a position opposite to the first clamping opening 1231.

Specifically, the second connecting wall 125 and the first connecting wall 121 are both located on the lower side of the chuck wall 122, and the dimension of the second connecting wall 125 in the Z direction is smaller than the dimension of the first connecting wall 121 in the Z direction. The second connecting wall 125 may be a straight wall, and the second connecting wall 125 may also be an arc-shaped wall, and the arc-shaped wall protrudes toward a side away from the first connecting wall 121.

The buffer wall 124 is connected to the second end of the catching wall 123 through a second connecting wall 125. Buffer wall 124 is located between clamping wall 123 and fixing wall 122, and buffer space 126 is provided between buffer wall 124 and clamping wall 123. Preferably, the buffer wall 124 is an arc-shaped wall, and the arc-shaped wall protrudes toward the fixed wall 122. Also, the second connecting wall 124 and the buffering wall 125 form a second card opening 1241 at a position opposite to the first card opening 1231.

With continued reference to fig. 1 and 4, the aftermarket installer snaps attachment member 12 of caster assembly 1 from first snap opening 1231 and second snap opening 1241 onto foot 2, support foot 21 being positioned between fixed wall 122 and cushioning wall 124, and foot nut 22 being positioned above snap wall 123. In the moving state, the supporting legs 21 directly abut against the fixed wall 122, or the supporting legs 21 abut against the fixed wall 122 through an intermediate connector, that is, in the moving state, the caster bears the weight of the home appliance through the fixed wall 122 to support the home appliance. When the caster wheel passes through uneven ground, the caster wheel is impacted, the impact force is directly transmitted to the supporting leg 21 through the fixed wall 122, the supporting leg 21 moves upwards, at the moment, the buffer wall 124 relieves the impact force, and the damage to the connecting piece 12 caused by the direct contact of the supporting leg 21 and the clamping wall 123 is avoided.

The connecting member 12 of the present embodiment includes a buffer wall 124, and a buffer space is formed between the buffer wall 124 and the clamping wall 123 to buffer the impact received by the caster, so as to prevent the caster from directly receiving rigid impact, which is beneficial to prolonging the service life of the caster. Moreover, when the connecting piece 12 is damaged along with the increase of the service time, the connecting piece 12 can be replaced without replacing the caster, which is beneficial to reducing the cost of the caster component.

In one possible embodiment, the fixing wall 122, the first connecting wall 121, the clamping wall 123, the second connecting wall 125 and the buffering wall 124 are integrally formed as a single piece. For example, the connecting member 12 is a metal member, and is formed by a sheet metal process, and has structural strength, and the buffer wall 124 has certain elasticity to alleviate the impact force. In addition, the connecting piece 12 has simple structure and small volume, so that the caster wheel assembly 1 is convenient to carry, and the burden of after-sale installation personnel can not be increased. The embodiment of the present invention does not limit the specific manufacturing process of the connecting member 12 and the metal material used.

In one possible embodiment of the connection of the connecting member 12 to the caster, with reference to fig. 2 to 3, the connecting member 12 is provided with a first mounting hole 1221; the caster assembly 1 of the present embodiment further includes a lock nut 14, and an upper end surface of the lock nut 14 abuts against the footing 2; the caster includes a stud 111, and the stud 111 is threaded with the lock nut 14 after passing through the first mounting hole 1221.

It should be noted that, for convenience of description, in the first embodiment provided in fig. 1 to 3, the caster is defined as a first caster 11; in the second embodiment provided in fig. 4 to 6, the caster is defined as the second caster 13.

In the first embodiment shown in fig. 1 to 3, the first caster 11 comprises a stud 111, a mounting top plate 112 and a bearing cover 117, wherein the bearing cover 117 is fixed on the mounting top plate 112, the stud 111 is located in the bearing cover 117, and the stud 111 protrudes a preset height from the top surface of the bearing cover 117.

The lock nut 14 includes a connecting portion 141 and a support portion 142, and the connecting portion 141 and the support portion 142 are provided with a screw hole 143 to which the stud 111 is screw-coupled. The connecting portion 141 is located at the bottom of the supporting portion 142, and the connecting portion 141 is a cylindrical structure and passes through the first mounting hole 1221 to be in threaded connection with the stud 111. The support portion 142 is used to abut against the support leg 21 of the foot 2. In order to facilitate the threaded connection between the locking nut 14 and the stud 111, the supporting portion 142 may be a hexagonal plate structure, and may support the supporting leg 21 of the bottom foot 2, or may be connected to a wrench. Of course, the supporting portion 142 may also include a supporting plate and an operating handle provided at one side of the supporting plate.

In order to prevent the support portion 142 from contacting the support leg 21 due to the height of the stud 111 being too high, referring to fig. 1 and 2, the height H between the top surface of the stud 111 and the top surface of the bearing cap 117 is less than or equal to the sum L between the thickness of the support portion 142 and the thickness of the fixing wall 122, i.e., the top surface of the stud 111 and the top surface of the support portion 142 are not guaranteed.

The fixing wall 122 of the connecting member 12 is provided with a first mounting hole 1221, and the connecting portion 141 of the lock nut 14 is inserted into the first mounting hole 1221. In order to increase the contact area between the fixing wall 122 and the bearing cover 117 and the supporting portion 142, the end of the fixing wall 122 away from the first connecting wall 121 may be rounded.

In this embodiment, the connecting member 12 is fixedly connected to the first caster 11 through the lock nut 14, and has a simple structure and is convenient to disassemble and maintain.

In another possible embodiment of the connection of the link 12 to the caster, referring to fig. 5 to 6, the link 12 is provided with a second mounting hole 1222; the caster comprises a connecting flange 131, and the connecting flange 131 is provided with a third mounting hole 1311 corresponding to the second mounting hole 1222; in this embodiment, the caster assembly 1 further includes a bolt 15 and a fixing nut 16, wherein the bolt 15 sequentially penetrates through the second mounting hole 1222, the third mounting hole 1311 and the fixing nut 16 for threaded connection.

In the second embodiment shown in fig. 4 to 6, the second caster 13 includes a connecting flange 131, and the connecting flange 131 may be circular, polygonal, or the like, and optionally, the connecting flange 131 is a rectangular plate. The edge region of the connecting flange 131 is provided with a second mounting hole 1311, and optionally, the edge region of the connecting flange 131 is provided with a plurality of second mounting holes 1311, for example, one second mounting hole 1311 is provided at each of four corners of the rectangular connecting flange 131.

The fixing wall 122 of the connecting member 12 is provided with second mounting holes 1222, and the number and the positions of the second mounting holes 1222 are corresponding to the number and the positions of the third mounting holes 1311 one by one, for example, the fixing wall 122 is a rectangular plate, and one second mounting hole 1222 is disposed at each of the four vertex angles of the fixing wall. The intermediate area of the fixing wall 122 is intended to abut against the supporting foot 21 of the foot 2.

In this embodiment, the bolt 15 passes through the second mounting hole 1222 and the third mounting hole 1311 and then is screwed with the fixing nut 16, so that the connecting member 12 and the second caster 13 are fixedly connected, and the connecting member 12 and the second caster 13 are stably and reliably connected and are not easily disconnected. Furthermore, the plurality of bolts 15 and the plurality of fixing nuts 16 are fixedly connected so that there are a plurality of fixed connection points between the link 12 and the second caster 13, further stabilizing the connection between the link 12 and the second caster 13.

On the basis of the above-described embodiments, the structure of the caster is further described. Referring to fig. 1, 2, 4 and 5, the caster comprises a mounting base, a rolling wheel 114 and a rotating shaft 115; the mounting seat comprises a mounting top plate 112, and a first side plate 113 and a second side plate which are oppositely arranged on the bottom surface of the mounting top plate 112 at intervals, wherein the mounting top plate 112 is connected with the connecting piece 12, a first rotating hole is formed in the first side plate 113, and a second rotating hole which is coaxial with the first rotating hole is formed in the second side plate; the rolling wheel 114 is positioned in the space between the first side plate 113 and the second side plate; the rotating shaft 115 is inserted into the first rotating hole, the rolling wheel 114 and the second rotating hole.

In some embodiments, referring to fig. 1 and 2, the first caster 11 includes a mounting seat, a rolling wheel 114, and a rotating shaft 115, wherein the mounting seat includes a mounting top plate 112, a first side plate 113, and a second side plate, the first side plate 113 and the second side plate are fixed to a bottom surface of the mounting top plate 112 at a relatively spaced distance, and a space for accommodating the rolling wheel 114 is formed between the first side plate 113 and the second side plate. The top mounting plate 112 is provided with a bearing cover 117. The first caster 11 may be an existing caster structure with a bearing cap 117 for connection to a connection foot of another device. The specific shapes of the top mounting plate 112, the first side plate 113 and the second side plate are not limited in the embodiment of the present invention. A first rotating hole is formed in the first side plate 113, and a second rotating hole coaxial with the first rotating hole is formed in the second side plate; the rolling wheel 114 is positioned in the space between the first side plate 113 and the second side plate; the rotating shaft 115 penetrates through the first rotating hole, the rolling wheel 114 and the second rotating hole, the two ends of the rotating shaft 115 are respectively connected with a limiting nut 116, and the rotating shaft 115 is placed to be separated from the first rotating hole and the second rotating hole.

In other embodiments, referring to fig. 4 and 5, the second caster 13 includes a mounting seat, a rolling wheel 114 and a rotating shaft 115, wherein the mounting seat includes a mounting top plate, a first side plate 113 and a second side plate, the first side plate 113 and the second side plate are fixed on the bottom surface of the mounting top plate at intervals, and a space for accommodating the rolling wheel 114 is formed between the first side plate 113 and the second side plate. A connecting flange 131 is fixed to the mounting top plate. A first rotating hole is formed in the first side plate 113, and a second rotating hole coaxial with the first rotating hole is formed in the second side plate; the rolling wheel 114 is positioned in the space between the first side plate 113 and the second side plate; the rotating shaft 115 penetrates through the first rotating hole, the rolling wheel 114 and the second rotating hole, the two ends of the rotating shaft 115 are respectively connected with a limiting nut 116, and the rotating shaft 115 is placed to be separated from the first rotating hole and the second rotating hole.

In addition, the second caster 13 further includes a first connecting plate 132 connected to the first side plate 113 and a second connecting plate connected to the second side plate, and a brake piece 133 is disposed at one end of the first connecting plate 132 and one end of the second connecting plate away from the first side plate 113. When the household appliance is moved to a certain position, the second caster 13 can be braked by operating the brake member 133 so that the second caster 13 is stationary and does not roll. When the household appliance needs to be moved continuously, the brake piece 133 is operated to release the brake on the second caster 13, so that the second caster 13 can roll continuously, and the household appliance is driven to move. It should be understood that the embodiment of the present invention does not limit the specific structure of the braking member 133, and it may be the braking member of the existing caster, and those skilled in the art can arrange the braking member according to the actual structure of the caster.

In summary, the moving device of the invention comprises at least three caster assemblies, the caster assemblies are detachably fixed at the bottom of the household appliance, and a supporting plane is formed at the bottom of the household appliance, so that the household appliance is moved, time and labor are saved, and the installation efficiency of the household appliance is improved. Even in narrow and small installation space, mobile device steadily supports domestic appliance to make domestic appliance steadily remove, reduce the probability that scratch floor and wall, domestic appliance collided with the problem, improve user's experience degree. In addition, mobile device includes at least three truckle subassembly, for the removal shallow among the prior art, truckle subassembly is small, portable, makes things convenient for after-sale installer's carrying, can not increase after-sale installer's work burden. The truckle of truckle subassembly can adopt current truckle structure, reduces mobile device's development research cost.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.

Claims (10)

1. A mobile device, comprising at least three caster assemblies detachably secured to a bottom of a household appliance;

the caster assembly forms a support plane that supports the household appliance.

2. The mobile device according to claim 1, wherein the mobile device comprises four caster assemblies, and the four caster assemblies are detachably and fixedly connected with feet of the household appliance respectively.

3. The mobile device of claim 2, wherein the caster assembly is snap-fit to the foot.

4. The mobile device according to claim 3, wherein the caster assembly comprises a caster and a connector fixedly connected to the caster, the connector configured to snap fit with the foot.

5. The mobile device of claim 4, wherein the connector includes a first connecting wall and opposing spaced apart fixed and snap walls, first ends of the fixed and snap walls being connected by the first connecting wall;

the fixed wall with truckle fixed connection, first joint opening has been seted up to the second end of joint wall for with footing joint.

6. The mobile device according to claim 5, wherein the connecting member further comprises a buffer wall and a second connecting wall, two ends of the second connecting wall are respectively connected with the second end of the clamping wall and the buffer wall, the buffer wall is located between the clamping wall and the fixed wall, and a buffer space is arranged between the buffer wall and the clamping wall;

and a second clamping opening is formed in the position, opposite to the first clamping opening, of the second connecting wall and the buffer wall.

7. The mobile device according to claim 6, wherein the fixed wall, the first connecting wall, the snap-fit wall, the second connecting wall, and the bumper wall are an integrally formed unitary piece.

8. The mobile device according to claim 4, wherein the connector is provided with a first mounting hole;

the caster wheel assembly further comprises a locking nut, and the upper end face of the locking nut is abutted to the bottom foot;

the caster comprises a stud, and the stud penetrates through the first mounting hole and then is in threaded connection with the locking nut.

9. The mobile device according to claim 4, wherein the connector is provided with a second mounting hole;

the caster comprises a connecting flange, and the connecting flange is provided with a third mounting hole which is axially corresponding to the second mounting hole;

the caster wheel assembly further comprises a bolt and a fixing nut, and the bolt sequentially penetrates through the second mounting hole and the third mounting hole to be in threaded connection with the fixing nut.

10. The mobile device according to any one of claims 4 to 9, wherein the caster comprises a mount, a roller wheel, and a rotational shaft;

the mounting seat comprises a mounting top plate, a first side plate and a second side plate, wherein the first side plate and the second side plate are oppositely arranged on the bottom surface of the mounting top plate at intervals;

the rolling wheel is positioned in a spacing space between the first side plate and the second side plate;

the rotating shaft penetrates through the first rotating hole, the rolling wheel and the second rotating hole.

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