Coplanar door orbital transfer sliding device and coplanar door furniture

Through the mating structure of pulleys and guide ropes, combined with guide components and dampers, the existing coplanar door rail change sliding device has solved the problems of low synchronization rate and high manufacturing cost, and achieved high synchronization rate and economical benefits of coplanar door furniture design.

CN222362902UActive Publication Date: 2025-01-17GUANGDONG OPK SMART HOME TECH CO LTD
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Patent Information

Application Number
CN202421023497.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-11
Publication Date
2025-01-17
Estimated Expiration
2034-05-11

AI Technical Summary

Technical Problem

When installed and used, the existing coplanar door rail-changing sliding device has uneven force, resulting in a low synchronization rate. In order to improve the synchronization rate, it is usually necessary to use a sliding device with a small friction coefficient but high cost, which increases the overall manufacturing cost.

Method used

A synchronous assembly including pulleys and guide ropes is designed. Through the mating structure of pulleys and guide ropes, the synchronous movement of the door page is ensured, and a guide assembly is provided between the door panel fixing seat and the sliding base to improve synchronization rate while using damping. to reduce the cost of use.

Benefits of technology

A good synchronization rate is achieved, while reducing overall manufacturing costs and improving economic benefits.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a coplanar door orbital transfer sliding device and coplanar door furniture. The coplanar door orbital transfer sliding device comprises a door plate fixing seat, a sliding base and a synchronous assembly, and the synchronous assembly is arranged between the door plate fixing seat and the sliding base so as to guide the displacement of the door plate fixing seat relative to the sliding base; the synchronous assembly comprises a pulley fixed to the sliding base, a guide rope wound around the pulley and a pair of guide fixing bases fixed to the guide rope. In the embodiment of the invention, by arranging a matching structure of the pulley and the guide rope, in specific use, after a user pulls one side of the movable door body, the other side of the movable door body can also be synchronously pulled, and a very good synchronization rate is achieved; meanwhile, compared with the prior art in which a sliding device with small friction coefficient and high cost is used for assembling to improve the synchronization rate, a matching structure of the pulley and the guide rope is used, the manufacturing cost of the technical scheme is lower, and the overall manufacturing cost can be reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of furniture, in particular to a coplanar door track-changing sliding device and coplanar door furniture. Background Art

[0002] Due to the limitation of space utilization, furniture with sliding doors, such as wardrobes or room doors, is being used more and more widely. In order to open one of the door leaves in a coplanar door, it is necessary to disengage this door leaf from the adjacent door leaf. When closing the door leaf, it is necessary to use an arc-shaped curved track to change the running track of the door leaf so that the door leaves can be coplanar after closing. However, the setting of the arc-shaped curved track means that customers cannot cut the coplanar door according to the size of the furniture during installation and use. The application is not flexible, the stocking is not convenient, the production is difficult, and the application cost is too high. In order to solve the above problems, the prior art discloses a synchronization component for a coplanar door track changing sliding mechanism with the authorization announcement number CN214659552U.

[0003] However, it is found in practice that when the above-mentioned cross-rotating first connector and second connector are used as synchronization components, when users open and close the door leaf, they usually push or pull the left or right side of the door leaf, which will cause one side of the synchronization component to be subjected to greater force than the other side. The uneven force will reduce the synchronization rate of the synchronization component; at the same time, since the first moving end of the first connector needs to be slidably connected to the door panel fixing seat, and the second moving end of the second connector needs to be slidably connected to the sliding base, if a sliding device with a large friction coefficient and low cost is used here, the synchronization rate will be further worse. Therefore, in actual use, in order to ensure a good synchronization rate, a sliding device with a small friction coefficient and high cost is usually used for assembly, which will undoubtedly increase the overall manufacturing cost and there is room for improvement. Utility Model Content

[0004] In order to overcome at least one of the defects of the prior art described above, according to one aspect of the utility model, a coplanar door track-changing sliding device is provided, which has good economic benefits while ensuring a good synchronization rate.

[0005] A coplanar door track-changing sliding device comprises a door panel fixing seat, a sliding base and a synchronization component, wherein the synchronization component is arranged between the door panel fixing seat and the sliding base to guide the displacement of the door panel fixing seat relative to the sliding base;

[0006] The synchronization assembly includes a pulley fixed on the sliding base, a guide rope arranged in a closed loop with the pulley, and a pair of guide fixing seats fixed on the guide rope, wherein the pair of guide fixing seats are fixed on both sides of the door panel fixing seat along the length direction and move in the same direction and synchronously following the winding movement of the guide rope;

[0007] The coplanar door track-changing sliding device also includes a guide assembly, which is arranged between the door panel fixing seat and the sliding base; two guide assemblies are provided, and the synchronization assembly is arranged between the two guide assemblies.

[0008] In one embodiment of the utility model, the guide rope comprises at least two first rope segments which are arranged in parallel and move in the same direction, and a pair of the guide fixing seats and the two first rope segments are fixed in one-to-one correspondence.

[0009] In one embodiment of the utility model, the number of the pulleys is at least four, and the connecting line of the four pulleys connected in sequence forms a quadrilateral shape;

[0010] The two first rope segments are arranged on two opposite sides of the formed quadrilateral along the length direction of the door panel fixing seat.

[0011] In an embodiment of the present invention, the shape of the four pulleys connected in sequence is a rectangle.

[0012] In one embodiment of the utility model, the four pulleys are respectively a first pulley, a second pulley, a third pulley and a fourth pulley, the first pulley and the fourth pulley are arranged diagonally, and the second pulley and the third pulley are arranged diagonally;

[0013] The guide rope is sequentially wound around the first pulley, the fourth pulley, the third pulley and the second pulley to form a closed loop;

[0014] One of the first rope segments is located between the first pulley and the second pulley, and the other first rope segment is located between the third pulley and the fourth pulley.

[0015] In an embodiment of the utility model, the guide assembly includes a guide rail and a guide seat slidably connected to the guide rail, the guide rail is fixed on a sliding base, and the guide seat is fixed on a door panel fixing seat.

[0016] In an embodiment of the utility model, guide grooves are arranged on two opposing outer side walls and an outer top wall of the guide track, and guide wheels assembled with the guide grooves are arranged on the inner wall of the guide seat relative to the guide grooves.

[0017] In one embodiment of the utility model, the guide seat is in a concave shape, and the guide seat includes two side plates arranged opposite to each other and a top plate arranged between the two side plates, and guide wheels are arranged on both the side plates and the top plate.

[0018] In one embodiment of the utility model, a damper is further included, one end of the damper is fixed on the sliding base and the other end of the damper is fixed on the door panel fixing base.

[0019] According to another aspect of the present application, there is provided a coplanar door furniture, comprising the above-mentioned coplanar door track changing sliding device.

[0020] In summary, the coplanar door track-changing sliding device and coplanar door furniture provided by the utility model have the following technical effects:

[0021] By setting up the matching structure of the pulley and the guide rope, when the user pulls one side of the movable door body, the other side of the movable door body will also be pulled synchronously during use, with a very good synchronization rate; at the same time, compared with the prior art that uses a sliding device with a small friction coefficient and high cost to improve the synchronization rate, the cost of this technical solution will be lower, which can reduce the overall manufacturing cost. It can be seen that the coplanar door track-changing sliding device has good economic benefits while ensuring a good synchronization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the disassembled state of the coplanar door track-changing sliding device according to an embodiment of the utility model;

[0023] Figure 2 It is a structural schematic diagram of a coplanar door track-changing sliding device according to an embodiment of the utility model;

[0024] Figure 3 It is a structural schematic diagram of a synchronization component in a coplanar door track-changing sliding device according to an embodiment of the utility model;

[0025] Figure 4 It is a schematic diagram of the subassembly state of the guide assembly in the coplanar door track-changing sliding device according to an embodiment of the utility model;

[0026] Figure 5 It is a state change diagram of the damper in the coplanar door track-changing sliding device of the embodiment of the utility model switching from the closed position a to the leaving position b or the open position b;

[0027] Figures: 1-door panel fixing seat, 2-sliding base, 21-roller, 3-synchronizing assembly, 31-pulley, 311-first pulley, 312-second pulley, 313-third pulley, 314-fourth pulley, 32-guide rope, 321-first rope segment, 33-guide fixing seat, 4-guide assembly, 41-guide rail, 411-guide groove, 42-guide seat, 421-guide wheel, 422-side panel, 423-top panel, 43-assembly base, 5-damper. DETAILED DESCRIPTION

[0028] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0031] The embodiment of the utility model discloses a coplanar door track-changing sliding device, which can be specifically applied to coplanar door furniture, and the coplanar door furniture can specifically include a movable door body moved by the coplanar door track-changing sliding device, and the coplanar door furniture also has a fixed door body used in conjunction with the movable door body. The coplanar door track-changing sliding device can specifically drive the movable door body to move between a closed position and an open position. In the closed position, the movable door body and the fixed door body are coplanar, and in the open position, the movable door body is parallel to the fixed door body and overlaps with the fixed door body, thereby opening the coplanar door furniture. It should be noted that during the movement of the movable door body between the closed position and the open position, there is also a state in which the movable door body is in a departure position at this time. In the departure position, the movable door body will be parallel to the fixed door body, but not coplanar with the fixed door body, but will be exposed relative to the closed plane defined when the movable door body and the fixed door body are coplanar (in the closed position).

[0032] See also Figure 1-Figure 5 The coplanar door track-changing sliding device includes a door panel fixing seat 1, a sliding base 2 and a synchronization component 3. The synchronization component 3 is arranged between the door panel fixing seat 1 and the sliding base 2 to guide the displacement of the door panel fixing seat 1 relative to the sliding base 2. It should be noted that the synchronization component 3 guides the displacement of the door panel fixing seat 1 relative to the sliding base 2, specifically referring to the displacement of the movable door body from the closed position to the leaving position or from the leaving position to the closed position.

[0033] The synchronization assembly 3 includes a pulley 31 fixed on the sliding base 2, a guide rope 32 arranged in a closed loop with the pulley 31, and a pair of guide fixing seats 33 fixed on the guide rope 32. The pair of guide fixing seats 33 are fixed on both sides of the door panel fixing base 1 along the length direction and move in the same direction and synchronously following the winding movement of the guide rope 32. It should be noted that the door panel fixing base 1 is specifically used to be fixed to the movable door body, and the sliding base 2 is specifically used to be slidably connected to the slide rail on the main body of the coplanar door furniture, and the roller 21 can be specifically set on the sliding base 2 to be slidably connected to the slide rail.

[0034] In this specific embodiment, when used specifically, the movable door body is explained by moving from the closed position to the leaving position. In this moving state, the user will habitually pull the left side of the movable door body to pull and open the movable door body. Since the movable door body and the door panel fixing seat 1 are fixed together, the door panel fixing seat 1 will move with the movable door body, and also because a pair of guide fixing seats 33 are fixed to the door panel fixing seat 1, since the user pulls the left side of the movable door body, the guide fixing seat 33 on the left side will be forced first, and in the process of being forced, it will synchronously drive the connected guide rope 32, and the right side of the guide fixing seat 33 will move synchronously and in the same direction as the left side of the guide fixing seat 33 due to the movement of the guide rope 32 on the pulley 31. Therefore, after the left side of the movable door body is pulled up by the user, the right side of the movable door body will also be pulled up synchronously, with a very good synchronization rate; at the same time, the use of the matching structure of the pulley 31 and the guide rope 32, compared with the use of a sliding device with a small friction coefficient and high cost in the prior art to improve the synchronization rate, the cost of this technical solution will be lower, which can reduce the overall manufacturing cost. It can be seen that the coplanar door track-changing sliding device has good economic benefits while ensuring a good synchronization rate.

[0035] Of course, the same is true for the movable door body moving from the away position to the closed position. The movable door body is explained as moving from the away position to the closed position. In this motion state, the user will habitually pull the right side of the movable door body to pull the movable door body closed. In this case, the guide fixing seat 33 on the right side will be first stressed, and then the guide fixing seat 33 on the left side will move synchronously and in the same direction as the guide fixing seat 33 on the right side under the cooperation of the guide rope 32 and the pulley 31. It can be seen that whether opening or closing the movable door body, a high synchronization rate can be guaranteed.

[0036] The coplanar door track-changing sliding device further comprises a guide assembly 4, which is arranged between the door panel fixing seat 1 and the sliding base 2. In this specific embodiment, by providing the guide assembly 4, the door panel fixing seat 1 can produce a directional displacement relative to the sliding base 2 more smoothly and accurately, and the motion stability between the components can also be improved.

[0037] The number of guide assemblies 4 can be two, and the synchronization assembly 3 is arranged between the two guide assemblies 4. In this way, in the length direction of the door panel fixing seat 1, it is equivalent to arranging two guide assemblies 4 on both sides of the door panel fixing seat 1, and arranging the synchronization assembly 3 in the middle of the door panel fixing seat 1, which can further improve the synchronization rate of the door panel fixing seat 1, and at the same time, the structure will be more compact, and the occupied space can be reduced.

[0038] The specific structure of the guide rope 32 may be that the guide rope 32 includes at least two first rope segments 321 that are arranged in parallel and move in the same direction, and a pair of guide fixing seats 33 and the two first rope segments 321 are fixed in a one-to-one correspondence. In this specific embodiment, in order to ensure that the pair of guide fixing seats 33 can more stably follow the winding movement of the guide rope 32 and move in the same direction and synchronously, the guide rope 32 may specifically include two first rope segments 321, and the two first rope segments 321 can always be arranged in parallel and move in the same direction, so that the pair of guide fixing seats 33 can correspond to the two first rope segments 321 and move in the same direction and synchronously. In addition, since it can be ensured that the spacing between the pair of guide fixing seats 33 is always kept equal, the guide rope 32 can always maintain sufficient tension, and can better maintain the high synchronization rate of the coplanar door track changing sliding device.

[0039] See also Figure 1 and Figure 3 The number of pulleys 31 can be four. In the scheme of four pulleys 31, the lines connecting the four pulleys 31 in sequence form a quadrilateral shape, and the two first rope segments 321 are arranged at the positions of the two opposite sides of the formed quadrilateral along the length direction of the door panel fixing seat 1. In this specific embodiment, four pulleys 31 can be specifically arranged, and the four pulleys 31 can form a quadrilateral shape structure. In the quadrilateral shape structure, the two first rope segments 321 are specifically arranged at the positions of the two opposite sides of the quadrilateral along the length direction of the door panel fixing seat 1. Such an arrangement has a simple structure, and a high synchronization rate can be achieved through four pulleys 31.

[0040] In other embodiments, the number of the pulleys 31 may be five, six, seven, etc. Providing a larger number of pulleys 31 can tighten the guide rope 32 and further improve the synchronization rate.

[0041] In the scheme of four pulleys 31, the shape of the four pulleys 31 connected in sequence can be specifically a rectangle. The position structure of the four pulleys 31 in a rectangular shape can make the overall structure more compact and can effectively reduce the space occupied by the coplanar door track-changing sliding device.

[0042] In other embodiments, the shape of the four pulleys 31 connected in sequence may be a trapezoid, a square, etc.

[0043] See also Figure 3In the scheme of four pulleys 31, the four pulleys 31 are respectively the first pulley 311, the second pulley 312, the third pulley 313 and the fourth pulley 314. The first pulley 311 and the fourth pulley 314 are arranged diagonally, and the second pulley 312 and the third pulley 313 are arranged diagonally. The guide rope 32 is sequentially wound around the first pulley 311, the fourth pulley 314, the third pulley 313 and the second pulley 312 to form a closed loop; one of the first rope segments 321 is located between the first pulley 311 and the second pulley 312, and the other first rope segment 321 is located between the third pulley 313 and the fourth pulley 314. In this specific embodiment, the guide rope 32 can form a closed loop winding structure in the four pulleys 31 of the first pulley 311, the second pulley 312, the third pulley 313 and the fourth pulley 314 to ensure sufficient tension. Furthermore, the specific assembly structure of a pair of guide fixed seats 33 is that one of the guide fixed seats 33 is fixed on the first rope segment 321 between the first pulley 311 and the second pulley 312, and the other guide fixed seat 33 is fixed on the first rope segment 321 between the third pulley 313 and the fourth pulley 314. Therefore, when the guide rope 32 is in the motion trajectory on the pulley 31, the movement direction of the guide rope 32 between the first pulley 311 and the second pulley 312 will move in the same direction as the guide rope 32 between the third pulley 313 and the fourth pulley 314, so as to specifically realize the same-direction and synchronous movement of a pair of guide fixed seats 33.

[0044] The specific structure of the guide assembly 4 can be that the guide assembly 4 includes a guide rail 41 and a guide seat 42 slidably connected to the guide rail 41, the guide rail 41 is fixed on the sliding base 2, and the guide seat 42 is fixed on the door panel fixing seat 1. In this specific embodiment, the guide seat 42 is specifically fixed on the door panel fixing seat 1, and the guide seat 42 will move with the door panel fixing seat 1, and the guide rail 41 is specifically fixed on the sliding base 2, and the guide seat 42 will slide on the guide rail 41 to guide the movement of the door panel fixing seat 1, that is, to guide the movement of the movable door body, and the guide rail 41 and the guide seat 42 are simple in structure, easy to manufacture and produce, and can further control costs; at the same time, the structure is also compact, which can further reduce the space occupied by the coplanar door track changing sliding device.

[0045] Specifically, guide grooves 411 are provided on the two opposite outer side walls and the outer top wall of the guide track 41, and guide wheels 421 assembled with the guide grooves 411 are provided on the inner wall of the guide seat 42 relative to the guide grooves 411. With such a structure, by providing the guide grooves 411 and the guide wheels 421, the sliding smoothness between the guide track 41 and the guide seat 42 can be increased, so that the user can open or close the door more smoothly.

[0046] Specifically, the guide seat 42 is in a concave shape, and includes two side plates 422 disposed opposite to each other and a top plate 423 disposed between the two side plates 422, and guide wheels 421 are disposed on both the side plates 422 and the top plate 423. With such a structure, the overall guide assembly 4 will be more compact, and the space occupied by the coplanar door track-changing sliding device can be further reduced.

[0047] The guide assembly 4 may further include an assembly base 43 , and the guide rail 41 may be fixed on the sliding base 2 through the assembly base 43 to improve the structural stability of the assembly of the guide rail 41 .

[0048] The coplanar door track-changing sliding device also includes a damper 5, one end of which is fixed on the sliding base 2 and the other end is fixed on the door panel fixing seat 1. In this specific embodiment, by setting the damper 5, when in the closed position, the damper 5 is in a compressed state, so a certain force is applied to the door panel fixing seat 1. Therefore, when switching from the closed position to the departure position, that is, opening the door, in this motion state, the compression degree of the damper 5 is reduced, which is equivalent to being in a pressure release state, and can provide additional force for the door panel fixing seat 1, making the translation window opening more labor-saving. In addition, when moving from the departure position to the closed position, that is, closing the door, the door panel fixing seat 1 will act on the damper 5, that is, compress the damper 5. At this moment, the damper 5 can provide a good buffering effect to avoid excessive force causing the door body to hit the heavy weight and make a sound, which can make the closing of the door body more stable and silent.

[0049] The assembly structure of the damper 5 may also be that the other end of the damper 5 is fixed to the middle of the door panel fixing seat 1, which can make the buffering force of the damper 5 more uniform, thereby improving the buffering effect.

[0050] The embodiment of the utility model also discloses a coplanar door furniture, including the above-mentioned coplanar door track-changing sliding device, and the coplanar door furniture can be specifically a cabinet such as a wardrobe, a shoe cabinet, or other furniture that needs to install doors. The coplanar door furniture can also make the movable door body have a very good synchronization rate by setting the above-mentioned coplanar door track-changing sliding device; at the same time, the matching structure of the pulley 31 and the guide rope 32 is used. Compared with the prior art that uses a sliding device with a small friction coefficient and high cost to assemble to improve the synchronization rate, the cost of this technical solution will be lower, which can reduce the overall manufacturing cost. It can be seen that the coplanar door furniture has good economic benefits while ensuring a good synchronization rate.

[0051] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A coplanar door track-changing sliding device, characterized in that: It comprises a door panel fixing seat (1), a sliding base (2) and a synchronization component (3), wherein the synchronization component (3) is arranged between the door panel fixing seat (1) and the sliding base (2) to guide the displacement of the door panel fixing seat (1) relative to the sliding base (2); The synchronization component (3) comprises a pulley (31) fixed on the sliding base (2), a guide rope (32) arranged in a closed loop around the pulley (31), and a pair of guide fixing seats (33) fixed on the guide rope (32); the pair of guide fixing seats (33) are fixed on both sides of the door panel fixing seat (1) along the length direction and move in the same direction and synchronously following the winding movement of the guide rope (32); The coplanar door track-changing sliding device further comprises a guide assembly (4), wherein the guide assembly (4) is arranged between the door panel fixing seat (1) and the sliding base (2); two guide assemblies (4) are provided, and the synchronization assembly (3) is arranged between the two guide assemblies (4).

2. A coplanar door track-changing sliding device according to claim 1, characterized in that: The guide rope (32) comprises at least two first rope segments (321) which are arranged in parallel and move in the same direction, and a pair of guide fixing seats (33) and the two first rope segments (321) are fixed in a one-to-one correspondence.

3. A coplanar door track-changing sliding device according to claim 2, characterized in that: The number of the pulleys (31) is at least four, and the connecting line of the four pulleys (31) connected in sequence forms a quadrilateral shape; The two first rope segments (321) are arranged at two opposite sides of the formed quadrilateral along the length direction of the door panel fixing seat (1).

4. A coplanar door track-changing sliding device according to claim 3, characterized in that: The four pulleys (31) are connected in sequence and have a rectangular shape.

5. The coplanar door track-changing sliding device according to claim 3, characterized in that: The four pulleys (31) are respectively a first pulley (311), a second pulley (312), a third pulley (313) and a fourth pulley (314); the first pulley (311) and the fourth pulley (314) are arranged diagonally, and the second pulley (312) and the third pulley (313) are arranged diagonally; The guide rope (32) is sequentially wound around the first pulley (311), the fourth pulley (314), the third pulley (313) and the second pulley (312) to form a closed loop; One of the first rope segments (321) is located between the first pulley (311) and the second pulley (312), and the other first rope segment (321) is located between the third pulley (313) and the fourth pulley (314).

6. A coplanar door track-changing sliding device according to any one of claims 1 to 5, characterized in that: The guide assembly (4) comprises a guide rail (41) and a guide seat (42) slidably connected to the guide rail (41); the guide rail (41) is fixed on a sliding base (2); and the guide seat (42) is fixed on a door panel fixing seat (1).

7. A coplanar door track-changing sliding device according to claim 6, characterized in that: The guide rail (41) is provided with guide grooves (411) on two opposing outer side walls and an outer top wall, and the guide seat (42) is provided with a guide wheel (421) assembled with the guide groove (411) on an inner wall relative to the guide groove (411).

8. A coplanar door track-changing sliding device according to claim 7, characterized in that: The guide seat (42) is in a concave shape, and comprises two side plates (422) arranged opposite to each other and a top plate (423) arranged between the two side plates (422), and guide wheels (421) are arranged on both the side plates (422) and the top plate (423).

9. A coplanar door track-changing sliding device according to any one of claims 1-5, 7 and 8, characterized in that: It also comprises a damper (5), one end of which is fixed on the sliding base (2) and the other end of which is fixed on the door panel fixing base (1).

10. A coplanar door furniture, characterized in that: It comprises a coplanar door track changing sliding device according to any one of claims 1-9.