Household appliance placing base

Abstract

The utility model discloses a household appliance placing base which comprises two bases, each base is provided with a bearing piece, a sliding piece and a pulling piece, the bearing piece is provided with a sliding groove, the sliding piece is arranged in the sliding groove in a sliding mode, the bearing piece is provided with two idler wheel assemblies, each idler wheel assembly is provided with two idler wheels, and the two idler wheels are connected through a rotating shaft. The bearing piece is located between the two idler wheels, strip-shaped holes allowing the two ends of the rotating shaft to stretch out are formed in the bearing piece, and the pulling piece is located outside one end of the sliding piece. The end of the rotating shaft penetrates through the strip-shaped hole in the mode that the rotating shaft can move up and down in the strip-shaped hole, the rotating shaft is pressed on the top face of the sliding piece, and the top face of the sliding piece is provided with a lifting driving structure pushing the rotating shaft to move up and down in the strip-shaped hole along translation of the sliding piece. The sliding piece and the bearing piece are provided with a sliding limiting structure for limiting the sliding piece to be separated from the rotating shaft when the sliding piece slides in the direction opposite to the pulling piece. Compared with the prior art, the sliding part can be machined without multiple procedures, machining is simple, and machining cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of household appliance transportation, and particularly to a placing base for household appliances. Background Art

[0002] For existing household appliances, such as washing machines, a household appliance base is installed at the bottom of the washing machine when it is placed, which can effectively prevent the bottom of the washing machine from getting damp and is convenient for cleaning. Some household appliance bases are equipped with a roller assembly that can make the base slide, which is beneficial for users to transfer household appliances and reduces the operating force in the process of manually transferring household appliances. After the transfer, the roller assembly needs to be hidden to prevent the household appliances from sliding. The existing washing machine base, such as a washing machine dragging and lifting base disclosed in the application number 2022226245236, includes a supporting member, a sliding member and a pulling member. A chute extending along its length direction is provided on the supporting member. The sliding member is slidably arranged in the chute. Two roller assemblies penetrate through the supporting member in the width direction. The middle part of the roller assembly is a fixed shaft. A first lifting groove and a second lifting groove corresponding to the two fixed shafts respectively and penetrating through the width direction of the supporting member are arranged in the length direction of the sliding member. The first lifting groove includes a first inclined groove and a first lower horizontal groove connected to one end of the length direction of the first inclined groove. The first inclined groove is arranged in front of the first lower horizontal groove in the length direction of the sliding member relative to the first lower horizontal groove. The first lower horizontal groove is arranged near the lower surface of the supporting member in the thickness direction relative to the first inclined groove. The second lifting groove includes a second inclined groove and a second upper horizontal groove and a second lower horizontal groove connected to both ends of the length direction of the second inclined groove. The second upper horizontal groove is arranged in front of the second lower horizontal groove in the length direction of the sliding member relative to the second lower horizontal groove. The second lower horizontal groove is arranged near the lower surface of the supporting member in the thickness direction relative to the second upper horizontal groove. One end of the length direction of the pulling member is hinged to the front end of the length direction of the supporting member. The middle part of the length direction of the pulling member forms a movable fit with the front end of the length direction of the sliding member. When in application, the two pulling members are pulled simultaneously, and the pulley assembly moves along the chute, so as to realize the contact or separation of the roller assembly from the ground.

[0003] However, after the sliding member of the above household appliance base is processed and formed, a groove still needs to be opened on the sliding member, which increases a process in the forming process of the sliding member, makes the processing more troublesome, and also increases the processing cost.

[0004] In view of this, the inventor of this case has conducted in-depth research on the problem, and thus this case has been generated. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a placing base for household appliances to solve the problem of the relatively high processing cost of the existing base.

[0006] To achieve the purpose, the utility model adopts the following technical solution:

[0007] A placement base for household appliances, comprising two bases. Each base has a supporting member, a sliding member and a toggling member. A chute extending along the length direction of the supporting member is provided on the supporting member. The sliding member is slidably arranged in the chute along the length direction of the supporting member. Two roller assemblies spaced along the length direction of the supporting member are provided on the supporting member. Each roller assembly has two rollers, and the two rollers are connected by a rotating shaft. The supporting member is located between the two rollers, and through holes for the two ends of the rotating shaft to extend out are provided on the supporting member. The toggling member is located outside one end of the sliding member in the length direction, and the toggling member is connected in a manner that drives the sliding member to translate along the length direction of the chute in the chute; the through holes are strip-shaped holes extending along the up and down direction of the supporting member, and the end portions of the rotating shaft pass through the strip-shaped holes in a manner that can move up and down in the strip-shaped holes. The rotating shaft is pressed on the top surface of the sliding member. The top surface of the sliding member has a lifting driving structure for translating the sliding member to push the rotating shaft to move up and down in the strip-shaped hole. And a sliding limiting structure for restricting the sliding member from separating from the rotating shaft when sliding in the direction away from the toggling member is provided on the sliding member and the supporting member. The sliding limiting structure is located between the two lifting driving structures.

[0008] Taking the direction where the toggling member is located as the front, the direction where the two supporting members face each other as the left and right direction, the sliding member is a strip-shaped structure extending along the front and back direction. Two sliding surfaces spaced along the front and back direction are provided on the top surface of the sliding member. The sliding surface has a first horizontal surface, an inclined surface and a second horizontal surface arranged in sequence from the front to the back. The rotating shaft is stacked above the first horizontal surface. The inclined surface is inclined upward from the front to the back. The connections between the first horizontal surface, the second horizontal surface and the inclined surface are all arc-transition-connected. The second horizontal surface at the front side and the first horizontal surface at the back side are connected by a limiting surface. The first horizontal surface, the second horizontal surface and the inclined surface constitute the above-mentioned lifting driving structure.

[0009] The sliding member has side vertical plates and a bottom plate. There are two side vertical plates. The two side vertical plates and the bottom plate are integrally formed. The two side vertical plates are erected at the left and right ends of the bottom plate. And a hollow chamber penetrating along the front and back direction and having an open top surface is surrounded by the two side vertical plates and the bottom plate. The bottom plate is in close fit with the bottom of the chute, and the side vertical plates are in close fit with the side chute walls of the chute. Two of the above-mentioned sliding surfaces are sequentially arranged on the top surface of the side vertical plate along the front and back direction. The distance in the up and down direction of the strip-shaped hole is greater than the minimum distance between the inclined surface and the second horizontal surface, and the distance in the up and down direction of the strip-shaped hole is less than the maximum distance between the inclined surface and the second horizontal surface.

[0010] The limiting surface has a front transverse straight surface, a limiting surface, and a rear transverse straight surface. Both the front transverse straight surface and the rear transverse straight surface extend in the front-rear direction. The limiting surface is erected, and the rear end of the front transverse straight surface is connected to the front end of the rear transverse straight surface through the limiting surface. The limiting surface is concavely provided with an arc-shaped groove forward. The front transverse straight surface is flush with the second transverse surface on the front side, and the rear transverse straight surface is flush with the first transverse surface on the rear side. A slip limiting member extending in the left-right direction and limited on the supporting member is provided on the supporting member. The slip limiting member is above the rear transverse straight surface and within the range of the arc-shaped groove. The slip limiting member and the arc-shaped groove constitute the slip limiting structure.

[0011] A through hole extending in the left-right direction is provided in the supporting member within the range of the rear transverse straight surface. The slip limiting member is a limiting rod and a limiting head. The limiting rod is horizontally arranged in the left-right direction. The limiting rod passes through the through hole and extends out of both ends of the supporting member. There are two limiting heads, which are respectively located at the left and right ends of the limiting rod.

[0012] The supporting member has a lower flat plate and two side plates spaced relatively left and right at both ends of the top surface of the lower flat plate. The lower flat plate is a strip-shaped plate extending in the front-rear direction. The lengths of the two side plates arranged back to back among the four side plates in the front-rear direction are shorter than the lengths of the two side plates arranged opposite to each other in the front-rear direction. Connecting plates are convexly provided on the opposite sides of the front and rear ends of the two lower flat plates. Installation structures for installing household appliances are provided on the connecting plates. The two side plates and the lower flat plate enclose the above-mentioned chute, and the through hole is provided on the side plate.

[0013] The upper part of the front end of the sliding member protrudes forward to form an extension plate suspended on the top surface of the lower flat plate. The front sides of the two side plates arranged opposite to each other among the four side plates are concavely provided with through holes leading to the outside of the lower flat plate. The actuating member has a movable block and a actuating block. The movable block is placed flat on the front end of the lower flat plate, and the first end of the movable block is hinged to the extension plate in a manner that can rotate forward around the extension plate to a straight state. The second end of the movable block extends out of the through hole and is connected to the actuating block.

[0014] The movable block is in the shape of a triangular sheet body, and the three side surfaces of the movable block are arc-shaped transitionally connected. The movable block has a first corner, a second corner, and a third corner. The first corner is below the extension plate and is hinged to the extension plate. The second corner is located on the top surface of the front connecting plate, and the second corner is detachably connected to the front connecting plate through a detachable block. The third corner extends out of the through hole and is connected to the actuating block.

[0015] A strip-shaped embedding hole extending in the left-right direction is provided on the top surface of the third corner portion, and the pulling block has a first pulling portion and a second pulling portion, the first pulling portion and the second pulling portion are vertically connected, the first pulling portion is extended in the left-right direction, and a mounting block limited in the strip-shaped embedding hole is convexly provided on the bottom surface of the first end of the first pulling portion, the second pulling portion extends in the front-to-back direction and is located on the rear side of the first end of the first pulling portion, and the second pulling portion is pressed against a surface opposite to the two rollers on the front side, and a protrusion extending out of the roller is convexly provided on a surface opposite to the two rotating shafts on the front side, and the protrusion is located above the second pulling portion.

[0016] The utility model discloses a household appliance placing base. When the household appliance is used, the household appliance and the two bases are installed together. The pull member is pulled away from the household appliance, and the sliding member moves with the pull member. The lifting and lowering driving structure on the sliding member generates an upward force on the rotating shaft, so that the rotating shaft rises from the bottom of the strip hole to the top of the strip hole, and finally the lowest end of the roller is higher than the bottom of the supporting member, so that the roller is hidden; on the contrary, the pull member moves toward the household appliance, so that the rotating shaft falls from the top of the strip hole to the bottom of the strip hole, and finally the lowest end of the roller is lower than the bottom of the supporting member, so that the roller contacts the bottom surface, which is convenient for moving the household appliance. At the same time, when the pull member moves toward the household appliance, the sliding limit structure stops the sliding member from moving, and the sliding member will not be separated from the sliding groove; compared with the prior art, the lifting and lowering driving structure on the sliding member cooperates with the strip hole on the supporting member, that is, the roller can move up and down in the strip hole under the push of the lifting and lowering driving structure, and the operation is simple and convenient. At the same time, the sliding member does not need to be processed by multiple processes, the processing is relatively simple, and the processing cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a structural schematic diagram of a single base of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the sliding member of the utility model. DETAILED DESCRIPTION

[0020] In order to further explain the technical solution of the present utility model, it is described in detail below with reference to the accompanying drawings.

[0021] A household appliance placement base, such as Figures 1 - 3As shown, it includes two bases. The base has a supporting member 1, a sliding member 2, and a lever member 3. A chute extending along the length direction of the supporting member 1 is provided on the supporting member 1. The sliding member 2 is slidably arranged in the chute along the length direction of the supporting member 1. Two roller assemblies spaced along the length direction of the supporting member 1 are provided on the supporting member 1. The roller assembly has two rollers 4, and the two rollers 4 are connected by a rotating shaft 41. The supporting member 1 is between the two rollers 4, and through holes for the two ends of the rotating shaft 41 to extend out are provided on the supporting member 1. The lever member 3 is outside the front end in the length direction of the sliding member 2, and the lever member 3 is connected in a way that drives the sliding member 2 to translate along the length direction of the chute in the chute; specifically, the supporting member 1 has a lower flat plate 11 and two side plates 12 spaced relatively left and right at both ends of the top surface of the lower flat plate 11. The lower flat plate 11 is a strip-shaped plate extending in the front-rear direction. The lengths of the two side plates 12 arranged opposite to each other in the front-rear direction among the four side plates 12 are shorter than the lengths of the two side plates 12 arranged relatively in the front-rear direction. And connecting plates 111 are convexly provided on the opposite sides of the front and rear ends of the two lower flat plates 11. Mounting structures for installing household appliances are provided on all four connecting plates 111. The mounting structures for installing household appliances are well-known technologies to those skilled in the art and will not be elaborated here. The two side plates 12 and the lower flat plate 11 enclose the above-mentioned chute; in application, when the lever member 3 moves forward, it drives the sliding member 2 to slide in the chute, and the household appliance is installed on the supporting member 1 through the four mounting structures on the four connecting plates 111.

[0022] The through hole is a strip-shaped hole 100 extending in the up-and-down direction of the supporting member 1. The end of the rotating shaft 41 passes through the strip-shaped hole 100 in a manner that can move up and down within the strip-shaped hole 100. The rotating shaft 41 is pressed against the top surface of the sliding member 2, and the top surface of the sliding member 2 has a lifting driving structure for translating and pushing the rotating shaft 41 to move up and down within the strip-shaped hole 100. Specifically, the sliding member 2 is a strip-shaped structure extending in the front-rear direction. The sliding member 2 has side plates 21 and a bottom plate 22. There are two side plates 21, and the two side plates 21 and the bottom plate 22 are integrally formed. The two side plates 21 stand at the left and right ends of the bottom plate 22, and the two side plates 21 and the bottom plate 22 enclose a hollow chamber that penetrates in the front-rear direction and has an open top surface. The bottom plate 22 is in close contact with the bottom of the chute, and the side plates 21 are in close contact with the side chute walls of the chute, that is, the bottom plate is in close contact with the lower flat plate 11, and the side plates 21 are in close contact with the backing plate 12. On the top surface of the side plate 21, two sliding surfaces 5 are arranged in sequence in the front-rear direction. That is, the sliding surface 5 has a first horizontal surface 51, an inclined surface 52, and a second horizontal surface 53 arranged in sequence from front to back. When the roller 4 contacts the bottom surface, the rotating shaft 41 is stacked above the first horizontal surface 51. The inclined surface 52 is inclined upward from front to back. The connections between the first horizontal surface 51, the second horizontal surface 53, and the inclined surface 52 are all arc-transition connections, enabling the roller to move more smoothly on the sliding surface 5. The second horizontal surface 53 at the front side is connected to the first horizontal surface 51 at the rear side through a limiting surface 6. That is, the first horizontal surface 51, the second horizontal surface 53, and the inclined surface 52 constitute the lifting driving structure. The distance in the up-and-down direction of the strip-shaped hole 100 is greater than the minimum distance between the inclined surface 52 and the second horizontal surface 53, and the distance in the up-and-down direction of the strip-shaped hole 100 is less than the maximum distance between the inclined surface 52 and the second horizontal surface 53. In application, when the actuating member 3 moves forward, the sliding member 2 moves forward in the chute, and the inclined surface 52 of the sliding surface 5 also moves forward. The rotating shaft 41 moves from the first horizontal surface 51 towards the inclined surface 52 and is pushed upward by the inclined surface 52. The rotating shaft moves along the strip-shaped hole from the bottom of the strip-shaped hole to the top of the strip-shaped hole and stops moving under the action of the top of the strip-shaped hole. The rotating shaft moves to the junction of the inclined surface 52 and the second horizontal surface 53 to support the rotating shaft 41, making the lowest end of the roller higher than the bottom of the supporting member 1 to retract the roller 4. Conversely, when the sliding member 2 moves backward, the rotating shaft slides down along the inclined surface and moves downward within the strip-shaped hole 100 to the bottom of the strip-shaped hole, finally making the lowest end of the roller lower than the bottom of the supporting member 1 to contact the bottom surface. Moreover, the sliding member 2 is a hollow structure formed integrally. On the one hand, raw materials are saved during the processing process. On the other hand, only one forming is required during the integral forming process, and no subsequent processes are needed.

[0023] A limiting-sliding structure for restricting the sliding member 2 from disengaging from the rotating shaft 41 when sliding in a direction away from the actuating member 3 is provided on the sliding member 2 and the supporting member 1, and the limiting-sliding structure is located between the two lifting driving structures; specifically, the limiting surface 6 has a front horizontal surface 61, a limiting surface 62 and a rear horizontal surface 63. The front horizontal surface 61 and the rear horizontal surface 63 both extend in the front-rear direction, the limiting surface 62 is erected, and the rear end of the front horizontal surface 61 is connected to the front end of the rear horizontal surface 63 through the limiting surface 62. The limiting surface 62 is recessed forward with an arc-shaped groove 200. The front horizontal surface 61 is flush with the second horizontal surface 53 on the front side, and the rear horizontal surface is flush with the first horizontal surface 51 on the rear side. A limiting-sliding member 7 extending in the left-right direction and limited on the supporting member 1 is provided on the supporting member 1. The limiting-sliding member 7 is located above the rear horizontal surface 63 and within the range of the arc-shaped groove 200, that is, a through hole extending in the left-right direction is provided on the back plate 12 within the range of the rear horizontal surface 63. The limiting-sliding member 7 includes a limiting rod 71 and a limiting head 72. The limiting rod 71 is horizontally arranged in the left-right direction. The limiting rod 71 passes through the through hole and extends out of both ends of the supporting member 1. There are two limiting heads 72, and the two limiting heads 72 are respectively located at the left and right ends of the limiting rod 71. The limiting-sliding member 7 and the arc-shaped groove 200 constitute the limiting-sliding structure; during application, when the sliding member 2 moves backward, the limiting-sliding member 7 enters the arc-shaped groove 200, so that the sliding member 2 cannot continue to move backward, enabling the sliding member 2 to move within a predetermined range and preventing it from disengaging from the sliding groove.

[0024] For a household appliance placement base of the present utility model, during application, the household appliance is installed on the two bases through the installation structure. When the actuating member 3 is pulled forward, the sliding member 2 moves forward following the actuating member 3. During the forward movement of the sliding member 3, the rotating shaft 41 moves upward along the inclined surface 52. The inclined surface of the inclined surface 52 generates an upward force on the rotating shaft 41, so that the rotating shaft 41 rises from the bottom of the strip-shaped hole 100 to the top of the strip-shaped hole 100. Finally, the intersection of the inclined surface and the second horizontal surface supports the rotating shaft and stops moving under the limiting action at the top of the strip-shaped hole 100. Finally, the lowest end of the roller is higher than the bottom of the supporting member 1, hiding the roller 4; conversely, when the actuating member moves backward, the rotating shaft 41 moves downward along the inclined surface 52, and the rotating shaft drops from the top of the strip-shaped hole 100 to the bottom of the strip-shaped hole 100. Finally, the lowest end of the roller is lower than the bottom of the supporting member 1, and the roller contacts the bottom surface, facilitating the movement of the household appliance. At the same time, when the actuating member moves backward and the limiting-sliding member 7 falls into the arc-shaped groove 200, it stops moving, preventing the sliding member 2 from disengaging from the sliding groove; compared with the prior art, through the mutual cooperation of the inclined surface 52 on the sliding member 2 and the strip-shaped hole 100 on the supporting member 1, the roller can move up and down in the strip-shaped hole 100 under the push of the inclined surface 52, with simple and convenient operation. At the same time, the sliding member 2 is integrally formed and processed, without multiple processes, the processing is relatively simple, and the processing cost is reduced.

[0025] In this new type, preferably, an extension plate 23 protruding forward is provided at the upper part of the front end of the sliding member 2 and hanging over the top surface of the lower flat plate 11. Outward extension holes (not shown in the figure) leading to the outside of the lower flat plate 11 are recessed in the front sides of two opposite side plates 12 among the four side plates 12. The actuating member 3 has a movable block 31 and an actuating block 32. The movable block 31 is flatly placed on the front end of the lower flat plate 11, and the first end of the movable block 31 is hinged to the extension plate 23 in such a way that it can rotate forward around the extension plate 23 to a straight state. The second end of the movable block 31 extends out of the outward extension hole and is connected to the actuating block 32. The movable block 31 is in the shape of a triangular sheet body, and the three side surfaces of the movable block 31 are arc-transitionally connected. That is, the movable block 31 has a first corner, a second corner, and a third corner. The first corner is located below the extension plate 23, and the first corner is hinged to the extension plate 23. That is, through holes penetrating up and down are formed in both the extension plate 23 and the first corner, and the extension plate 23 and the first corner are hinged together through a hinge shaft passing through the two through holes. The second corner is located on the top surface of the front connecting plate 111, and the second corner is detachably connected to the front connecting plate 111 through a detachable block 321. That is, detachable holes are formed in both the second corner and the front connecting plate 111, and the second corner and the front connecting portion are detachably connected through the detachable block 321 sequentially passing through the two detachable holes. The third corner extends out of the outward extension hole and is connected to the actuating block 32. During application, the detachable block 321 is detached, the actuating block 32 rotates forward, the second corner of the movable block moves around the first corner to the rear side of the first corner, and the third corner moves to the front side of the first corner. Finally, the first corner and the third corner are in the same straight line front and back, facilitating the forward pulling out of the sliding member 2 by the actuating block 32.

[0026] In this new type, preferably, a strip-shaped embedding hole extending in the left-right direction is formed in the top surface of the third corner. The actuating block 32 has a first actuating portion 321 and a second actuating portion 322. The first actuating portion 321 and the second actuating portion 322 are vertically connected. The first actuating portion 321 extends in the left-right direction. A fitting block (not shown in the figure) that is limited in the strip-shaped embedding hole protrudes downward from the bottom surface of the first end of the first actuating portion 321. The second actuating portion 322 extends in the front-rear direction and is located at the rear side of the first end of the first actuating portion 321, and the second actuating portion 322 abuts against the opposite side of the two front rollers 4. A convex block 411 protruding outside the roller 4 protrudes from the opposite side of the two front rotating shafts 41, and the convex block 411 is located above the second actuating portion 322. During application, after the rollers are hidden, the second actuating portion 22 abuts against the opposite side of the two front rollers and restricts the convex block, preventing the rollers from moving when the household appliance is not to be moved.

[0027] The product form of the present utility model is not limited to the illustrations and embodiments in this case. Any person's appropriate changes or modifications with a similar idea shall be regarded as not departing from the patent scope of the present utility model.

Claims

1. A household appliance placement base, comprising two bases, the base having a supporting member, a sliding member and a pulling member, the supporting member being provided with a slide groove extending in the length direction of the supporting member, the sliding member being slidably arranged in the slide groove in the length direction of the supporting member, the supporting member being provided with two roller assemblies spaced apart in the length direction of the supporting member, the roller assembly having two rollers, the two rollers being connected by a rotating shaft, the supporting member being located between the two rollers, and the supporting member being provided with a through hole for extending both ends of the rotating shaft, the pulling member being located outside one end in the length direction of the sliding member, and the pulling member being connected together in a manner of driving the sliding member to translate in the slide groove in the length direction of the slide groove; characterized in that: The through hole is a strip hole extending in the up and down directions of the supporting member, and the end of the rotating shaft passes through the strip hole in a manner that it can move up and down in the strip hole. The rotating shaft is pressed on the top surface of the sliding member, and the top surface of the sliding member has a lifting and driving structure that pushes the rotating shaft to move up and down in the strip hole along the translation of the sliding member, and the sliding member and the supporting member are provided with a sliding limit structure that limits the sliding member from being separated from the rotating shaft when sliding in the direction back to the pull member, and the sliding limit structure is located between the two lifting and driving structures.

2. A household appliance placement base according to claim 1, characterized in that: With the direction of the pull member as the front, the relative direction of the two supporting members as the left and right direction, the sliding member is a strip structure extending along the front-to-back direction, and two sliding surfaces arranged at intervals along the front-to-back direction are provided on the top surface of the sliding member, and the sliding surface has a first transverse surface, an inclined surface and a second transverse surface arranged in sequence from front to back, the rotating shaft is superimposed on the first transverse surface, and the inclined surface is inclined upward from front to back, and the connection between the first transverse surface, the second transverse surface and the inclined surface are all arc-shaped transition connections, and the second transverse surface on the front side is connected to the first transverse surface on the rear side by a limiting surface, and the first transverse surface, the second transverse surface and the inclined surface constitute the lifting and lowering driving structure.

3. A household appliance placement base according to claim 2, characterized in that: The sliding member comprises a side upright plate and a bottom plate, wherein two side upright plates are provided, and the side upright plates are integrally formed with the bottom plate, and the side upright plates are vertically arranged on the left and right ends of the bottom plate, and the side upright plates and the bottom plate form a hollow chamber which penetrates along the front-to-back direction and has an open top surface, the bottom plate is in close contact with the bottom of the slide groove, and the side upright plates are in close contact with the side groove walls of the slide groove, and the top surface of the side upright plates is provided with the two above-mentioned sliding surfaces which are arranged in sequence along the front-to-back direction, the distance between the strip holes in the up-down direction is greater than the minimum distance between the inclined surface and the second transverse surface, and the distance between the strip holes in the up-down direction is less than the maximum distance between the inclined surface and the second transverse surface.

4. A household appliance placement base according to claim 2, characterized in that: The limiting surface comprises a front transverse plane, a limiting surface and a rear transverse plane, the front transverse plane and the rear transverse plane both extend in the front-to-back direction, the limiting surface is vertically arranged, and the rear end of the front transverse plane is connected with the front end of the rear transverse plane by the limiting surface, the limiting surface is concavely provided with an arc-shaped groove forward, the front transverse plane is flush with the second transverse plane on the front side, and the rear transverse plane is flush with the first transverse plane on the rear side, the supporting member is provided with a sliding limiting member extending in the left-right direction and limited on the supporting member, the sliding limiting member is above the rear transverse plane, and the sliding limiting member is within the range of the arc-shaped groove, and the sliding limiting member and the arc-shaped groove constitute the sliding limiting structure.

5. A household appliance placement base according to claim 4, characterized in that: The supporting member is provided with a through hole penetrating along the left and right directions within the range of the rear horizontal plane, and the sliding limiter is composed of a limiting rod and a limiting head. The limiting rod is arranged horizontally along the left and right directions, and the limiting rod passes through the through hole and extends out of the two ends of the supporting member. Two limiting heads are provided, and the two limiting heads are respectively located on the left and right ends of the limiting rod.

6. A household appliance placement base according to claim 5, characterized in that: The supporting member comprises a lower flat plate and two back plates which are arranged on both ends of the top surface of the lower flat plate at opposite intervals on the left and right sides. The lower flat plate is a strip plate extending in the front-to-back direction. The lengths of two back plates which are arranged back to back among the four back plates in the front-to-back direction are shorter than the lengths of the two back plates which are arranged opposite to each other in the front-to-back direction. Connecting plates are convexly provided on the sides which are back to back at the front and rear ends of the two lower flat plates. A mounting structure for mounting household appliances thereon is provided on the connecting plates. The two back plates and the lower flat plate form the above-mentioned slide groove, and the through holes are provided on the back plates.

7. The household appliance placement base according to claim 5, characterized in that: The upper front end of the sliding member is provided with an extension plate suspended on the top surface of the lower flat plate, and the front sides of two opposite support plates among the four support plates are recessed with extension holes leading to the outside of the lower flat plate. The pulling member has a movable block and a pulling block. The movable block is placed flat on the front end of the lower flat plate, and the first end of the movable block is hinged to the extension plate in a way that it can rotate forward around the extension plate to a straight state, and the second end of the movable block extends out of the extension hole and is connected to the pulling block.

8. A household appliance placement base according to claim 7, characterized in that: The movable block is in the form of a triangular sheet, and the three side surfaces of the movable block are connected in an arc-shaped transition. The movable block has a first corner, a second corner and a third corner. The first corner is located below the extension plate, and the first corner is hinged to the extension plate. The second corner is located on the top surface of the front connecting plate, and the second corner is detachably connected to the front connecting plate through a disassembly block. The third corner extends out of the extension hole and is connected to the pull block.

9. A household appliance placement base according to claim 8, characterized in that: A strip-shaped embedding hole extending in the left-right direction is provided on the top surface of the third corner portion, and the pulling block has a first pulling portion and a second pulling portion, the first pulling portion and the second pulling portion are vertically connected, the first pulling portion is extended in the left-right direction, and a mounting block limited in the strip-shaped embedding hole is convexly provided on the bottom surface of the first end of the first pulling portion, the second pulling portion extends in the front-to-back direction and is located on the rear side of the first end of the first pulling portion, and the second pulling portion is pressed against a surface opposite to the two rollers on the front side, and a protrusion extending out of the roller is convexly provided on a surface opposite to the two rotating shafts on the front side, and the protrusion is located above the second pulling portion.

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