A support device for interior decoration

Abstract

This application discloses a support device for interior decoration, including a base, a box connected to the base via a lifting component, the lifting component being used to switch the height of the box; a linkage mechanism mounted on the box and connected to the lifting component; multiple reversing components mounted between the linkage mechanism and the base; a first support plate and two second support plates, both mounted on the linkage mechanism, having a first state where the vertical projection surfaces of the two second support plates are placed on the first support plate; and a second state where the two second support plates are linearly arranged on both sides of the first support plate; the lifting component acts on the linkage mechanism and cooperates with the reversing components to switch the first support plate and the two second support plates between the first and second states. In this support device, the box is raised by the lifting component, and during the process, the first support plate extends and the second support plates unfold through the operation of the reversing components and the linkage mechanism, providing a working area for the operator. The operation is simple and quick.

Description

Technical Field

[0001] This application relates to the field of building decoration auxiliary equipment technology, specifically to a support device for interior decoration. Background Technology

[0002] Architectural decoration, aimed at protecting the main structure of a building, improving its functionality, and beautifying it, involves various treatments of the building's interior and exterior surfaces and spaces using decorative materials or ornaments to enhance living comfort. Currently, scaffolding is the most common support system for interior decoration construction. It is used for exterior walls, interior decoration, or in areas with high ceilings where direct construction is impossible. Scaffolding materials typically include bamboo, wood, steel pipes, or composite materials. These tubular structures are spliced ​​together using connectors or overlapping methods to achieve different heights to assist workers. However, scaffolding assembly and disassembly are often cumbersome. Even during decoration and repair phases where the procedures are not complex, the lengthy process of erecting and dismantling scaffolding makes it inconvenient. If folding ladders are used, the working area is small, and worker safety is compromised.

[0003] A Chinese patent document with patent number CN104372923A discloses a type of scaffolding whose structure uses pipes, uprights, and connecting fasteners for assembly. The process of assembling and disassembling it takes a long time and affects the progress of the work. Summary of the Invention

[0004] The purpose of this application is to provide a support device for interior decoration, so as to solve the defects of the prior art that uses scaffolding to assist in the work, which is cumbersome to set up and dismantle, inconvenient to use, and affects the work efficiency.

[0005] To achieve the above objectives, this application employs the following technical solution: a support device for interior decoration, comprising...

[0006] A base, on which a box is connected via a lifting mechanism, which is used to switch the height of the box.

[0007] The linkage mechanism is mounted on the housing and is connected to the lifting components via a transmission mechanism;

[0008] Multiple reversing components are mounted between the linkage mechanism and the base;

[0009] A first support plate and two second support plates are both mounted on the linkage mechanism and have a first state in which the vertical projection surfaces of the two second support plates are placed on the first support plate.

[0010] And a second state in which the two second support plates are linearly arranged on both sides of the first support plate;

[0011] The lifting component acts on the linkage mechanism and cooperates with the reversing assembly to switch the first support plate and the two second support plates between a first state and a second state.

[0012] In a further embodiment of this application, the lifting component includes two parallelly arranged lifting assemblies, namely a first lifting assembly and a second lifting assembly, and a drive unit. The drive unit is mounted on a base. Both the first and second lifting assemblies are provided with a first motion structure and a second motion structure arranged vertically. The first motion structure and the second motion structure are movably connected by two sets of deformation components. The first motion structure is fixed to the surface of the base, and the second motion structure is fixed to the bottom of the housing. The drive unit deforms the deformation components to increase or decrease the distance between the first motion structure and the second motion structure.

[0013] Based on the above scheme, the height of the box is controlled and adjusted by two sets of lifting components, making the lifting process more stable. Each lifting component consists of a first motion structure and a second motion structure arranged vertically. The drive unit drives the two motion structures and the second motion structure to move relative to each other. At the same time, the deformation component deforms to achieve lifting, resulting in higher stability.

[0014] In a further embodiment, the first motion structure and the second motion structure are the same; the first motion structure includes a vertical plate mounted on a base, a sliding plate slidably mounted in the sliding opening of the vertical plate, and a first rack horizontally mounted on a pair of diagonally opposite sides of the sliding plate, with the tooth surfaces of the two first racks facing each other, and a first gear rotatably mounted at both ends of the vertical plate via a rotating shaft, the first gear meshing with the adjacent first rack.

[0015] The drive unit includes a motor fixedly mounted on a base. A drive shaft is mounted on the base via a bearing seat. A threaded roller is mounted on the drive shaft. A threaded groove is provided on the slide plate. The threaded roller and the threaded groove cooperate. The output shaft of the motor is connected to the drive shaft. Each set of deformation components is fixedly connected to the transfer shaft in the first motion structure and the second motion structure.

[0016] Based on the above scheme, the rotation of the threaded roller acts on the threaded groove, which drives the slide plate to move and controls the deformation of the deformation component. The structure has high motion stability. The threaded roller and the threaded groove work together to drive the slide plate at a stable speed, ensuring that the final device can achieve uniform lifting and lowering.

[0017] In a further embodiment of this application, the linkage mechanism includes two sets of deformable parallelograms and a transition assembly;

[0018] One end of the adapter is movably connected to the first support plate, and the other end is fixedly connected to the mounting shaft rotatably connected to the side plate of the box. One corner of the parallelogram is fixedly connected to the mounting shaft, and the other side is movably connected to the adjacent second support plate.

[0019] Based on the above scheme, the parallelogram has the advantage of relatively strong stability when moving. The actual production of the adapter component can be made using two mutually rotating connecting rods, which is simple to manufacture and reduces costs.

[0020] In a further embodiment, each of the reversing components is installed between the mounting shaft of the linkage mechanism and the base;

[0021] The reversing assembly includes a second gear and a second rack. The second gear is interference-fitted onto the mounting shaft, and the second rack is vertically fixed to the base. One end of the second rack is movable and limited to pass through the housing and meshes with the corresponding second gear.

[0022] According to the above scheme, the use of gears and racks has a high degree of meshing. In actual production, selecting gears of appropriate diameter to match the racks makes it easier to control the overall lifting height of the housing and the degree of fit of the final second support plate.

[0023] Each set of the adapter components is symmetrically installed in the housing; this design conforms to the concept of aesthetic design, while also ensuring that the load on the adapter components is relatively balanced.

[0024] In a further embodiment of this application, the total area of ​​the two second support plates after horizontal docking is equal to that of the first support plate. When in use, the two second support plates can be retracted to cover the top of the box, making the device more aesthetically pleasing after it is no longer in use.

[0025] In a further embodiment of this application, each of the second support plates is provided with a strip groove on the side facing the box body, and a telescopic rod is provided in the strip groove. A positioning hole is provided on the side plate of the box body, and one end of the telescopic rod is hinged to the strip groove, while the other end is movably placed in the positioning hole.

[0026] Based on the above scheme, telescopic rods are used to support the second support plate and the corresponding box side plate, which acts as a reinforcing rib. When the second support plate is used, the support strength is greater, which enhances the stability of the structure.

[0027] In a further embodiment of this application, a support leg assembly is symmetrically installed on the base side plate; the support leg assembly includes a Y-shaped support rod, the forked end of the Y-shaped support rod is hinged to the base side plate, and the other end is hinged to the base side plate with a hydraulic rod, and an abutment plate is movably installed at the end of the Y-shaped support rod away from the base, and a tension spring is installed between the bottom surface of the Y-shaped support rod and the abutment plate.

[0028] By adopting the above scheme, the hydraulic rod controls the contact plate to contact the ground, which can increase the support area of ​​the device, improve the overall stability of the device, and enhance safety.

[0029] In a further embodiment of this application, in the second state, the two second support plates and the adjacent side plates of the first support plate are provided with inclined surfaces of matching slope. After the two second support plates are unfolded, it is easy for the second support plates and the first support plate to abut against each other, and gaps are less likely to occur between them, which helps to improve the aesthetics of the device.

[0030] According to the above technical solution, this application has the following effects:

[0031] The support device designed in this application raises the box body through a lifting component. During the process, the first and second support plates are unfolded through the operation of the reversing component and the linkage mechanism, providing a working area for workers. The operation is simple and quick. When not in use, the second support plate can be retracted simply by lowering the height of the box body, avoiding the cumbersome process of traditional scaffolding. This device is easy to use and can be put into use quickly, which speeds up the work efficiency. The unfolded second support plate can ensure that workers have sufficient working area and ensure safety.

[0032] In addition, telescopic rods are movably installed on the second support plate. After the two second support plates are unfolded, they are obliquely supported between the second support plate and the corresponding box side plate by the telescopic rods, which plays a reinforcing role, ensuring the support strength of the second support plate and ensuring the safety performance of the device.

[0033] The base is also equipped with outriggers. When in use, the hydraulic shaft of the hydraulic rod extends to support the ground with the abutment plate, which can increase the support area, enhance the stability of the device, and further improve the safety of the device during use. Attached Figure Description

[0034] Figure 1 This is an isometric view of an embodiment of this application;

[0035] Figure 2 This is a schematic diagram of the structure after removing the housing in an embodiment of this application (two second gears are omitted).

[0036] Figure 3 This is a structural diagram of an embodiment of the present application excluding the first support plate and a second support plate;

[0037] Figure 4 This is a side view of an embodiment of this application (with one side panel of the base removed).

[0038] Figure 5 This is a structural diagram used in the embodiments of this application;

[0039] Figure 6 This is an internal structure diagram used in the embodiments of this application;

[0040] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0041] Figure 8 This is a structural diagram of the back of the second support plate in an embodiment of this application.

[0042] The components include: 1. Base; 2. Housing; 3. Lifting component; 4. Second support plate; 5. First support plate; 6. Linkage mechanism; 7. Reversing assembly; 8. Slot; 9. Telescopic rod; 10. Positioning hole; 11. Leg assembly; 12. Inclined surface; 13. Protruding rod; 14. Limiting groove; 15. Mounting plate; 16. Support rod; 31. First lifting assembly; 32. Second lifting assembly; 33. Drive unit; 301. First motion structure; 302. Second motion structure; 303. Deformation assembly.

[0043] 3011 Stand plate; 3012 Slide opening; 3013 Slide plate; 3014 First rack; 3015 First gear;

[0044] 331 Motor; 332 Drive shaft; 333 Threaded roller; 334 Threaded groove;

[0045] 3031 is the third longest rod, and 3032 is the fourth longest rod;

[0046] 61. Parallelogram; 611. First long rod; 612. Second long rod;

[0047] 62 Adapter assembly; 63 Mounting shaft; 621 First short plate; 622 Second short plate; 623 Mounting slot; 633 Limiting plate;

[0048] 71 Second gear; 72 Second rack;

[0049] 110 Y-shaped support rod; 111 hydraulic rod; 112 abutment plate; 113 tension spring. Detailed Implementation

[0050] To make the technical means, creative features, objectives and effects of this application easier to understand, the following describes this application in conjunction with specific implementation methods.

[0051] It should be noted that in the description of this application, the terms "front," "rear," "left," "right," "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and do not require this application to be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. The terms "front," "rear," "left," "right," "upper," and "lower" used in the description of this application refer to the directions in the accompanying drawings, and the terms "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0052] like Figure 1 and Figure 2As shown, this application discloses a support device for interior decoration, which includes a base 1, a linkage mechanism 6, four reversing components 7, a first support plate 5, and two second support plates 4. A lifting component 3 is installed on the base 1, and a box 2 is fixed on the lifting component 3. The lifting component 3 is used to switch the height of the box 2. The linkage mechanism 6 is installed on the box 2 and is connected to the lifting component 3 in a transmission manner. The four reversing components 7 are correspondingly installed between the linkage mechanism 6 and the base 1. The first support plate 5 and the two second support plates 4 are all installed on the linkage mechanism 6. The first state has two second support plates 4 with their vertical projection surfaces placed on the first support plate 5. At this time, the two second support plates 4 are located above the first support plate 5. The second state has two second support plates 4 linearly arranged on both sides of the first support plate 5.

[0053] The lifting component 3 activates the linkage mechanism 6 and coordinates with the reversing assembly 7 to switch between a first state and a second state for the first support plate 5 and the two second support plates 4. When the first support plate 5 and the two second support plates 4 are in the first state, the device is in a deactivated state; when the first support plate 5 and the two second support plates 4 are in the second state, the device is in an activated state.

[0054] Reference Appendix Figure 2 and 3 The diagram shows the mechanism of the lifting component 3, which includes a first lifting assembly 31, a second lifting assembly 32, and a drive unit 33. The first lifting assembly 31 and the second lifting assembly 32 are arranged in parallel between the housing 2 and the base 1. Both the first lifting assembly 31 and the second lifting assembly 32 are equipped with a first motion structure 301 and a second motion structure 302 arranged vertically. The first motion structure 301 is fixed on the base 1, and the second motion structure 302 is fixed on the bottom of the housing 2. In actual production, a mounting plate 15 can be fixed to the bottom of the housing 2 to facilitate the installation and fixation of the second motion structure 302. Two sets of deformation components 303 are also movably installed between each set of first motion structure 301 and second motion structure 302. The drive unit 33 is connected to the first motion structure 30. When working, the drive unit 33 is activated to drive the first motion structure 301 to work, forcing the deformation components 303 to deform, thereby controlling the lifting action of the housing 2.

[0055] Specifically, the first motion structure 301 and the second motion structure 302 in this embodiment have the same structure, as shown in the attached figure. Figure 4The first motion structure 301 includes a vertical plate 3011, a sliding plate 3013, and two first racks 3014. The vertical plate 3011 is vertically fixed on the base 1, and a sliding opening 3012 is provided on the vertical plate 3011. The sliding plate 3013 is slidably installed in the sliding opening 3012, and a first rack 3014 extends horizontally from opposite diagonals of the sliding plate 3013. The tooth surfaces of the two first racks 3014 are arranged opposite each other. A pair of first gears 3015 are rotatably installed at both ends of the vertical plate 3011 via a rotating shaft. The first gear 3015 meshes with the corresponding first rack 3014; wherein the deformation component 303 includes a third long rod 3031 and a fourth long rod 3032, one end of the third long rod 3031 and one end of the fourth long rod 3032 are rotatably connected by a rotating shaft, the other end of the third long rod 3031 is fixedly connected to the rotating shaft on the first gear 3015 in the upper second motion structure 302, and the other end of the fourth long rod 3032 is fixedly connected to the rotating shaft on the first gear 3015 in the first motion structure 301.

[0056] When the slide plate 3013 moves back and forth along the sliding opening 3012 in the upright plate 3011, the two first gears 3015 on the first motion structure 301 rotate to... Figure 4 Taking the perspective as an example, when the skateboard 3013 moves to the right, the first gear 3015 on the left rotates clockwise, and the first gear 3015 on the right rotates counterclockwise. The angle between the third long rod 3031 and the fourth long rod 3032 facing the skateboard 3013 increases, and the height of the box 2 rises.

[0057] When the slide plate 3013 moves to the left, the first gear 3015 on the left rotates counterclockwise, and the first gear 3015 on the right rotates clockwise. The angle between the third long rod 3031 and the fourth long rod 3032 facing the slide plate 3013 decreases, and the height of the box 2 decreases.

[0058] During the movement of the slide plate 3013, the angle between the third long rod 3031 and the fourth long rod 3032 is increased or decreased, ultimately controlling the lifting and lowering of the box 2.

[0059] Continue to observe the appendix Figure 4 In this embodiment, the drive unit 33 includes a motor 331 and a threaded roller 333. The motor 331 is fixed on the base 1 by a motor mounting plate, and a drive shaft 332 is rotatably mounted on the base 1 by a bearing. One end of the drive shaft 332 is connected to the output shaft of the motor 331. The threaded roller 333 is axially fixed to the other end of the drive shaft 332. The slide plate 3013 has a threaded groove 334 on the side facing the threaded roller 333, and the threaded groove 334 meshes with the threaded roller 333. When the motor 331 is started, it drives the threaded roller 333 to rotate, forcing the slide plate 3013 to move back and forth. During production, a worm gear reducer can also be installed between the motor 331 and the drive shaft 332 (specific details of which are prior art will not be elaborated further).

[0060] Observation Appendix Figure 5 To enhance the stability of the device, the technicians also installed multiple adjustable support rods 16 on the base 1. The support rods 16 are supported by threaded sleeves and screws. The screws are threadedly installed inside the threaded sleeves. The threaded sleeves are movably installed on the base 1 via hinge seats. The mounting plate 15 has a positioning hole on the side facing the base 1. The screw is rotated and abutted into the positioning hole. If necessary, a nut can be welded onto the screw to facilitate screw adjustment.

[0061] Observe again Figure 2 and in conjunction with the appendix Figure 6 and 7 In this embodiment, the linkage mechanism 6 includes four sets of deformable parallelograms 61 and adapter components 62. The parallelograms 61 on the same side are symmetrically arranged, and the adapter components 62 on the same side are symmetrically arranged. One end of the adapter component 62 is movably connected to the first support plate 5, and the other end is fixedly connected to the mounting shaft 63 rotatably mounted on the side plate of the housing 2. The mounting shaft 63 passes through the side plate of the housing 2. One corner of the parallelogram 61 is fixedly connected to the mounting shaft 63, and the other side is movably connected to the adjacent second support plate 4.

[0062] The parallelogram 61 includes two parallel long rods 611 and 612. The first long rod 611 and the second long rod 612 are mounted on the corresponding second support plate 4 via a pivot. The other end of the first long rod 611 is mounted on the side plate of the box 2 via a pivot. The other end of the second long rod 612 is fixedly mounted on the mounting shaft 63.

[0063] The adapter assembly 62 includes a second short plate 622 and a first short plate 621 that are rotatably connected to each other. One end of the first short plate 621 is provided with a mounting groove 623. The second short plate 622 is rotatably installed in the mounting groove 623 via a rotating shaft. The end of the second short plate 622 away from the first short plate 621 is rotatably installed on the first support plate 5. The end of the first short plate 621 away from the second short plate 622 is fixedly connected to the mounting shaft 63. In addition, a limit plate 633 is fixed to the end of the mounting groove 623 of the first short plate 621 that is opposite to the corresponding parallelogram 61.

[0064] Observation Appendix Figure 3 , 6 7. In this embodiment, the reversing assembly 7 includes a second gear 71 and a second rack 72. The second gear 71 is interference-fitted onto the mounting shaft 63 and is located inside the housing. The second rack 72 is vertically fixed to the base 1. One end of the second rack 72 is movable and limited to pass through the housing 2 and meshes with the corresponding second gear 71. The tooth surfaces of the two second racks 72 on the same side are arranged opposite each other. Specifically, each second rack 72 has a protruding rod 13 fixed on the side facing the side plate of the housing 2. The inner wall of the housing 2 is provided with a limiting groove 14, and the protruding rod 13 is placed in the limiting groove 14.

[0065] With attachment Figure 6 Taking the perspective as an example, when the lifting component 3 drives the housing 2 to descend, the housing 2 and the second rack 72 generate relative motion. At this time, each second gear 71 rotates along the corresponding second rack 72. The second gear 71 on the left rotates clockwise. During this process, the first long rod 611 and the second long rod 612 on the left drive the second support plate 4 on the left to move towards the first support plate 5. The second gear 71 on the right rotates counterclockwise. Similarly, the second support plate 4 on the right also moves towards the first support plate 5. This is accompanied by the transition points of the second short plates 622 and the first short plate 621 on the left and right sides moving in close proximity. That is, the height of the first support plate 5 decreases and it is hidden inside the housing 2. The area of ​​the two second support plates 4 after horizontal docking is equal to that of the first support plate 5.

[0066] Similarly, when the lifting component 3 lifts the box 2, the first support plate 5 extends out of the box 2, and the two second support plates 4 unfold and are placed on both sides of the first support plate 5.

[0067] Reference Appendix Figure 1 and 8 Each second support plate 4 has a strip groove 8 on the side facing the housing 2. A telescopic rod 9 is installed within the strip groove 8, and a magnet is fixed within the strip groove 8 to facilitate the fixation of the telescopic rod 9. A positioning hole 10 is provided on the side plate of the housing 2. One end of the telescopic rod 9 is hinged to the strip groove 8, and the other end is movably positioned in the positioning hole 10. The structure of this telescopic rod 9 is the same as that of the adjustable support rod 16, and both serve the same purpose in this application; therefore, the specific installation details will not be elaborated further.

[0068] To ensure the overall stability of the device, please refer to the appendix. Figure 6 Four support leg assemblies 11 are symmetrically installed on the side plate of the base 1. The support leg assembly 11 includes a Y-shaped support rod 110. The forked end of the Y-shaped support rod 110 is hinged to the side plate of the base 1, and the other end is hinged to the side plate of the base 1 with a hydraulic rod 111. The end of the Y-shaped support rod 110 away from the base 1 is movably installed with an abutment plate 112. A tension spring 113 is installed between the bottom surface of the Y-shaped support rod 110 and the abutment plate 112.

[0069] When the device is in use, the hydraulic rod 111 is activated to drive the contact plate 112 to contact the ground (floor level), which can increase the overall contact area of ​​the device with the ground, enhance the stability of the device, and improve safety performance.

[0070] In some embodiments, to consider the aesthetics of the device, in the second state, the two second support plates 4 and the adjacent side plates of the first support plate 5 are provided with inclined surfaces 12 with matching slopes. The setting of the inclined surfaces 12 makes it easy for the side of the second support plate 4 to fit with the second support plate 5 after it is unfolded. Multiple casters can also be installed at the bottom of the base 1 to facilitate the transfer of the device. In actual manufacturing, the weight of the base 1 is increased to minimize the impact on the overall center of gravity of the device.

[0071] In practical use, the support device is moved to the construction site, the hydraulic rod 111 is activated to support the abutment plate 112 on the ground, and then the motor 331 is activated to drive the sliding plate 3013 to move to the left, so that the distance between the upper and lower ends of the deformation component 303 is increased, that is, the height of the box 2 is raised. During the process, the first support plate 5 extends upwards out of the box 2, and the two second support plates 4 move to both sides of the first support plate 5 until they are in the same plane as the first support plate 5. Finally, the telescopic rod 9 on the second support plate 4 is adjusted to be placed in the positioning hole on the side plate of the box 2, and the support rod 16 is adjusted and placed in the positioning hole abutting the mounting plate 15.

[0072] As is known from common technical knowledge, this application can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this application or equivalent to this application are included in this application.

Claims

1. A support device for interior decoration, characterized in that, The utility model relates to a box lifting device, including Base (1), base (1) is connected with box (2) through lifting part (3) on base (1), lifting part (3) is used for the switching of the height position of box (2); Connecting rod mechanism (6) is installed on box (2) and is transmission connection with lifting part (3); Multiple reversing assemblies (7) are installed between connecting rod mechanism (6) and base (1); First support plate (5), two second support plates (4) are installed on connecting rod mechanism (6) and have two second support plates (4) vertical projection face first state of being placed on first support plate (5), And two second support plates (4) linear arrangement in the second state of first support plate (5) both sides; Lifting part (3) acts connecting rod mechanism (6) and cooperates reversing assembly (7), to make first support plate (5) and two second support plates (4) carry out the switching of first state and second state; Connecting rod mechanism (6) includes four groups of deformable parallelogram body (61) and adapter assembly (62); Adapter assembly (62) one end swing connection first support plate (5), the other end fixed connection box (2) side plate on the swing connection mounting shaft (63), one side edge angle fixed connection mounting shaft (63) of parallelogram body (61), the other side swing connection adjacent second support plate (4); Every reversing assembly (7) is installed between mounting shaft (63) of connecting rod mechanism (6) and base (1); Reversing assembly (7) includes second gear (71) and second rack (72), second gear (71) is installed on mounting shaft (63) with interference fit, second rack (72) is fixed vertically on base (1), and second rack (72) one end swing limit passes through box (2) and is engaged with corresponding second gear (71).

2. A support device for interior decoration according to claim 1, characterized in that Lifting part (3) includes two parallelly arranged no. One lifting assembly (31) and no. Two lifting assemblies (32) and drive part (33), no. One lifting assembly (31) and no. Two lifting assemblies (32) are all equipped with up and down arranged first movement structure (301), second movement structure (302), and first movement structure (301), second movement structure (302) are movably connected through two groups of deformation components (303) between first movement structure (301), second movement structure (302), first movement structure (301) is fixed on the surface of base (1), and second movement structure (302) is fixed on the bottom of box (2), and drive part (33) acts deformation component (303) deformation, to increase or reduce the distance between first movement structure (301) and second movement structure (302).

3. A support device for interior decoration according to claim 2, characterized in that First movement structure (301) and second movement structure (302) are same; The first motion structure (301) comprises a vertical plate (3011) vertically mounted on the base (1), a sliding plate (3013) is slidingly mounted in a sliding opening (3012) of the vertical plate (3011), and a pair of first racks (3014) are horizontally mounted on opposite diagonal corners of the sliding plate (3013), the two first racks (3014) are oppositely arranged, and a No. gear (3015) is rotatably mounted on each end of the vertical plate (3011) through a rotating shaft, and the No. gear (3015) is engaged with the adjacent first rack (3014). The driving part (33) comprises a motor (331) fixedly mounted on the base (1), a driving shaft (332) is mounted on the base (1) through a bearing with a seat, a threaded roller (333) is mounted on the driving shaft (332), a threaded groove (334) is arranged on the sliding plate (3013), the threaded roller (333) and the threaded groove (334) are matched, and the output shaft of the motor (331) is drivingly connected with the driving shaft (332).

4. The support device for interior decoration according to claim 1, wherein Each set of the switching assembly (62) is symmetrically mounted in the box body (2).

5. The support device for interior decoration according to claim 1, wherein The area of the two second support plates (4) after horizontal butt joint is equal to that of the first support plate (5).

6. A support device for interior decoration according to claim 2, characterized in that Each second support plate (4) further comprises a strip-shaped groove (8) on the side facing the box body (2), a telescopic rod (9) is arranged in the strip-shaped groove (8), a positioning hole (10) is arranged on the side plate of the box body, one end of the telescopic rod (9) is hingedly connected to the strip-shaped groove (8), and the other end is movably arranged in the positioning hole (10).

7. A support device for interior decoration according to claim 1, characterized in that The base (1) further comprises a leg assembly (11) symmetrically mounted on the side plate. The leg assembly (11) comprises a Y-shaped support rod (110), the Y-shaped support rod (110) is hingedly connected to the side plate of the base (1) at the bifurcated end, a hydraulic rod (111) is hingedly connected between the other end of the Y-shaped support rod (110) and the side plate of the base (1), an abutting disc (112) is movably mounted on the end of the Y-shaped support rod (110) away from the base (1), and a tension spring (113) is mounted between the bottom surface of the Y-shaped support rod (110) and the abutting disc (112).

8. A support device for interior decoration according to any one of claims 1 to 7, characterized in that In the second state, the side plates of the two second support plates (4) and the first support plate (5) are provided with inclined surfaces (12) with matching slopes.

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