Storable ladder stand for indoor decoration

Abstract

The invention relates to a storable ladder stand for indoor decoration, which comprises two groups of main vertical rods and two groups of auxiliary vertical rods, the auxiliary vertical rods are slidably mounted on the main vertical rods, the upper ends of the two groups of main vertical rods are rotatably connected, a grab handle is fixedly mounted at the upper end of the left group of main vertical rods, and a plurality of pedals are rotatably connected between the left group of main vertical rods. A plurality of transverse rods are rotationally connected between the set of auxiliary vertical rods located on the left side, supporting legs are installed at the lower ends of the two sets of auxiliary vertical rods, and a buckle is arranged between the two sets of main vertical rods; and the adjusting mechanism is used for adjusting the positions of the two sets of auxiliary vertical rods, the adjusting mechanism comprises a groove formed in the main vertical rod, a first threaded rod is rotationally connected into the groove, and the first threaded rod is sleeved with a first threaded block in a threaded mode. According to the ladder stand, the ladder stand can be folded and stored, the occupied space is small, other tools can be stored, and carrying is convenient.

Description

Technical Field

[0001] The invention relates to the field of ladders, in particular to a foldable ladder for indoor decoration. Background Art

[0002] Interior decoration is a kind of building decoration. It is the design and construction activities of the interior space of a building. It uses material and technical means and architectural design principles to create an indoor environment that is functional, comfortable and beautiful and meets people's material and spiritual needs according to the use nature, environment and corresponding standards of the building. The ladder for interior decoration is a tool that plays an auxiliary role in interior decoration and is widely used in interior decoration.

[0003] The current ladder for interior decoration has a simple structure and can only be stored. Since the main structure of the ladder is mostly made of metal, it is heavy and difficult to carry. Moreover, when carrying out interior decoration, not only the ladder but also other decoration tools need to be carried, which requires multiple reciprocating movements, which is time-consuming and laborious.

[0004] Therefore, based on the above problems, we have invented a foldable ladder for interior decoration. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a retractable ladder for indoor decoration to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a foldable ladder for indoor decoration, comprising:

[0007] Two groups of main uprights and two groups of secondary uprights, the secondary uprights are slidably mounted on the main uprights, the upper ends of the two groups of main uprights are rotatably connected, a handle is fixedly mounted on the upper end of the group of main uprights on the left, a plurality of pedals are rotatably connected between the group of main uprights on the left, a plurality of crossbars are rotatably connected between the group of secondary uprights on the left, support feet are mounted on the lower ends of the two groups of secondary uprights, and buckles are arranged between the two groups of main uprights;

[0008] The adjusting mechanism is used to adjust the positions of the two groups of auxiliary uprights, and the adjusting mechanism includes a groove arranged on the main upright, a first threaded rod is rotatably connected in the groove, a first threaded block is provided on an external thread sleeve of the first threaded rod, and the first threaded block is fixedly connected to the corresponding auxiliary upright, and a transmission groove is provided on the main upright, and the upper end of the first threaded rod is rotatably passed through the main upright and extended to be arranged in the transmission groove, and a rotating rod is rotatably connected in the transmission groove, and the rotating rod and the first threaded rod are transmission-connected by a first bevel gear set, and the four rotating rods are all rotationally passed through the main upright, and the two main uprights located on the same side are transmission-connected by a gear set, and the two rotating rods located on the left side are rotationally passed through the main upright and are coaxially fixedly connected, and one of the rotating rods is coaxially fixedly connected with an adjusting handle;

[0009] A storage mechanism for storing tools, the storage mechanism comprising a bottom plate, a plurality of pedals are rotatably connected to the bottom plate, and the bottom plate is located between two sets of main uprights;

[0010] The movable frame is provided with two movable frames, and the movable frame is provided with a movable frame, and the movable frame is provided with a movable frame, and the movable frame is provided with a movable frame.

[0011] Furthermore, the first bevel gear set includes a first bevel gear and a second bevel gear meshing with each other, the first bevel gear is coaxially fixedly connected to the rotating rod, and the second bevel gear is coaxially fixedly connected to the first threaded rod.

[0012] Furthermore, the gear set includes two mutually meshing transmission gears, and the two transmission gears are coaxially fixedly connected to two rotating rods respectively.

[0013] Furthermore, the moving assembly includes a triangular plate, which is provided with three adjusting grooves, a second threaded rod is rotatably connected in the adjusting groove, a second threaded block is provided on the external thread sleeve of the second threaded rod, the second threaded block is slidably connected to the adjusting groove, three rollers are provided outside the triangular plate, the three rollers are rotatably connected to the three second threaded blocks respectively, a moving groove is provided in the middle position of the triangular plate, the three second threaded rods all rotate through the triangular plate and extend to be set in the moving groove, the rotating shaft rotates through the triangular plate and extends to be set in the moving groove, and the rotating shaft and the second threaded rod are connected through a second bevel gear set.

[0014] Furthermore, the second bevel gear set includes a third bevel gear and three fourth bevel gears meshing with each other, the third bevel gear is coaxially fixedly connected to the rotating shaft, and the three fourth bevel gears are coaxially fixedly connected to the three second threaded rods respectively.

[0015] Furthermore, the transmission mechanism includes a first pulley and a second pulley, the first pulley is coaxially fixedly connected to the connecting shaft, the second pulley is coaxially fixedly connected to the rotating shaft, and the first pulley and the second pulley are connected via a synchronous belt transmission.

[0016] Furthermore, a clamping groove is provided at one end of the clamping strip away from the secondary upright rod, and clamping teeth matching the clamping strip are provided on the clamping plate.

[0017] Furthermore, the plurality of pedals are distributed in a uniform array, and the plurality of cross bars are arranged corresponding to the plurality of pedals.

[0018] Furthermore, the three rollers correspond to the three corners of the triangle plate respectively.

[0019] Furthermore, the angle between the pedal and the main pole ranges from 30° to 90°.

[0020] Compared with the prior art, the present invention provides a foldable ladder for indoor decoration, which has the following features:

[0021] Beneficial effects:

[0022] 1. This kind of foldable ladder for indoor decoration, when setting up the ladder, by rotating the adjusting handle, the adjusting handle drives the rotating rod to rotate, the rotating rod drives four transmission gears to rotate relatively, the four transmission gears drive other rotating rods to rotate, the rotating rod drives the first threaded rod to rotate, the first threaded rod drives the auxiliary vertical rod to move through the first threaded block, and the ladder can be adjusted. The height of the ladder can be adjusted according to needs, which is easy to use.

[0023] 2. A foldable ladder for indoor decoration is provided with a storage mechanism. The ladder is folded, and then the pedal is rotated to form a certain angle between the pedal and the main pole. At this time, the ladder is laid flat to form a storage groove between the pedal and the bottom plate. On the one hand, the angle between the pedal and the main pole is reduced, and the ladder can be folded as a whole. When the ladder is stored, the space occupied is reduced. On the other hand, the angle between the pedal and the main pole is increased to form a storage groove, which can be used to store other decoration tools.

[0024] 3. The storable ladder for interior decoration is provided with a moving mechanism. The card plate is pulled to stagger the card plate and the card strip, and then the limit plate is pushed. The limit plate drives the slider to move, and the slider drives the support rod to rotate through the adjusting rod until it is in a suitable position. At this time, the moving assembly is unfolded relative to the auxiliary rod, and then the pedal is unfolded synchronously to form a storage groove, so that the ladder as a whole forms a cart. When the ladder is moved, it can be moved by the moving assembly, which is more convenient for carrying the ladder. At the same time, other tools can be placed through the storage groove, so that the ladder has more functionality.

[0025] In the present invention, the ladder can be folded and stored, which occupies less space, can be used to store other tools, and is convenient to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural expansion diagram of the present invention;

[0027] Figure 2 It is a front structural perspective view of the present invention;

[0028] Figure 3 It is a structural schematic diagram of the adjustment mechanism in the present invention;

[0029] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0030] Figure 5 It is a schematic diagram of the back structure of the moving mechanism in the present invention;

[0031] Figure 6 It is a front structural schematic diagram of the moving mechanism in the present invention;

[0032] Figure 7 It is a structural exploded diagram of the moving mechanism in the present invention;

[0033] Figure 8 It is a schematic diagram of the connection structure between the clamping plate and the limiting rod in the present invention;

[0034] Fig. 9 It is a schematic diagram of the internal structure of the mobile component in the present invention;

[0035] Fig.10It is a structural schematic diagram of the triangular plate in the present invention;

[0036] Fig.11 It is a schematic diagram of the structure of the buckle in the present invention;

[0037] Fig.12 It is a structural schematic diagram of the auxiliary upright pole in the present invention;

[0038] Fig.13 It is a schematic diagram of the contracted state of the present invention;

[0039] Fig.14 It is a schematic diagram of the state of the cart of the present invention.

[0040] In the figure: 1. main pole; 2. auxiliary pole; 3. handle; 4. pedal; 5. cross bar; 6. support foot; 7. buckle; 8. bottom plate; 9. adjustment mechanism; 10. groove; 11. transmission groove; 12. first threaded rod; 13. first threaded block; 14. rotating rod; 15. gear set; 16. transmission gear; 17. adjustment handle; 18. storage mechanism; 19. moving assembly; 20. support rod; 21. connecting shaft; 22. rotating shaft; 23. transmission mechanism; 24. adjustment rod; 25. slider; 26. L-shaped groove; 27. Triangle plate; 28. Adjustment groove; 29. ​​Moving groove; 30. Second threaded rod; 31. Second threaded block; 32. Second bevel gear set; 33. Third bevel gear; 34. Fourth bevel gear; 35. Roller; 36. Clip strip; 37. Clip plate; 38. Connecting rod; 39. Limiting plate; 40. Spring; 41. First bevel gear set; 42. First bevel gear; 43. Second bevel gear; 44. First pulley; 45. Second pulley; 46. Moving mechanism; 47. Turning handle. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a retractable ladder for indoor decoration.

[0043] like Figure 1-14 As shown, a foldable ladder for indoor decoration comprises:

[0044] Two groups of main uprights 1 and two groups of secondary uprights 2, the secondary uprights 2 are slidably mounted on the main uprights 1, the upper ends of the two groups of main uprights 1 are rotatably connected, a handle 3 is fixedly mounted on the upper end of the group of main uprights 1 on the left, a plurality of pedals 4 are rotatably connected between the group of main uprights 1 on the left, further, the angle between the pedals 4 and the main uprights 1 is in the range of 30°-90°, a plurality of cross bars 5 are rotatably connected between the group of secondary uprights 2 on the left, it is worth mentioning that the plurality of pedals 4 are evenly distributed in an array, the plurality of cross bars 5 are arranged corresponding to the plurality of pedals 4, the lower ends of the two groups of secondary uprights 2 are both installed with supporting feet 6, and buckles 7 are arranged between the two groups of main uprights 1;

[0045] In order to facilitate the folding and unfolding of the ladder, an adjustment mechanism 9 is provided for adjusting the positions of the two sets of auxiliary uprights 2. The adjustment mechanism 9 includes a groove 10 provided on the main upright 1, a first threaded rod 12 is rotatably connected in the groove 10, a first threaded block 13 is provided on the external thread sleeve of the first threaded rod 12, and the first threaded block 13 is fixedly connected to the corresponding auxiliary upright 2. A transmission groove 11 is provided on the main upright 1, and the upper end of the first threaded rod 12 rotates through the main upright 1 and extends to be arranged in the transmission groove 11, a rotating rod 14 is rotatably connected in the transmission groove 11, and the rotating rod 14 is connected to the first threaded rod 12 through the first bevel gear set 41. It should be noted that The first bevel gear set 41 includes a first bevel gear 42 and a second bevel gear 43 meshing with each other. The first bevel gear 42 is coaxially fixedly connected to the rotating rod 14, and the second bevel gear 43 is coaxially fixedly connected to the first threaded rod 12. The four rotating rods 14 are all rotated to penetrate the main vertical pole 1, and the two main vertical poles 1 on the same side are connected by a gear set 15. It should be noted that the gear set 15 includes two mutually meshing transmission gears 16, and the two transmission gears 16 are coaxially fixedly connected to the two rotating rods 14 respectively. The two rotating rods 14 on the left side rotate to penetrate the main vertical pole 1 and are coaxially fixedly connected, and one of the rotating rods 14 is coaxially fixedly connected with an adjusting handle 17;

[0046] Through the above technical features: by rotating the adjusting handle 17, the adjusting handle 17 drives the rotating rod 14 to rotate, the rotating rod 14 drives the four transmission gears 16 to rotate relatively, the four transmission gears 16 drive other rotating rods 14 to rotate, the rotating rod 14 drives the first threaded rod 12 to rotate, the first threaded rod 12 drives the secondary upright 2 to move through the first threaded block 13 until the length, at this time, adjust the angle between the two sets of main uprights 1 to the appropriate position, and the ladder can be unfolded. It should be noted that the threaded rod has a self-locking function. After unfolding, there is no need to set a locking structure between the main upright 1 and the secondary upright 2 to achieve self-locking.

[0047] In order to facilitate the storage of other tools for interior decoration, a storage mechanism 18 is provided for storing the tools. The storage mechanism 18 includes a bottom plate 8, and a plurality of pedals 4 are rotatably connected to the bottom plate 8. The bottom plate 8 is located between the two sets of main uprights 1.

[0048] Through the above technical features: after the ladder is folded, the pedal 4 is rotated to form a certain angle between the pedal 4 and the main pole 1. At this time, the ladder is laid flat to form a storage groove between the pedal 4 and the bottom plate 8. On the one hand, the angle between the pedal 4 and the main pole 1 is reduced, so that the ladder can be folded as a whole, and the space occupied by the ladder is reduced when the ladder is stored. On the other hand, the angle between the pedal 4 and the main pole 1 is increased to form a storage groove, which can be used to store other decoration tools.

[0049] In order to facilitate the transportation of the ladder, a moving mechanism 46 is set up for moving the ladder. The moving mechanism 46 includes two moving components 19. It should be noted that the moving component 19 includes a triangular plate 27. Three adjusting grooves 28 are provided on the triangular plate 27. A second threaded rod 30 is rotatably connected in the adjusting groove 28. The second threaded rod 30 is externally threaded with a second threaded block 31. The second threaded block 31 is slidably connected to the adjusting groove 28. Three rollers 35 are provided outside the triangular plate 27. It should be noted that the three rollers 35 correspond to the three corners of the triangular plate 27 respectively. The three rollers 35 are rotatably connected to the three second threaded blocks 31 respectively. A moving groove 29 is provided in the middle position of the triangular plate 27. The three second threaded rods 30 all rotate and penetrate the three The angle plate 27 extends to be set in the movable groove 29, the rotating shaft 22 rotates and passes through the triangular plate 27 and extends to be set in the movable groove 29, the rotating shaft 22 and the second threaded rod 30 are connected through the second bevel gear set 32 ​​for transmission. It should be noted that the second bevel gear set 32 ​​includes a third bevel gear 33 and three fourth bevel gears 34 that are meshed with each other, the third bevel gear 33 is coaxially fixedly connected to the rotating shaft 22, and the three fourth bevel gears 34 are respectively coaxially fixedly connected to the three second threaded rods 30, a group of secondary vertical rods 2 located on the right side are rotatably penetrated by a connecting shaft 21, both sides of the connecting shaft 21 are rotatably connected to the support rods 20, one end of the connecting shaft 21 is coaxially fixedly connected to the rotating handle 47, and the side of the support rod 20 away from the connecting shaft 21 is rotatably connected to the rotating shaft 22.

[0050] It should be noted that during interior decoration, it is often necessary to move the ladder in the stairwell, which is quite laborious. By setting three rollers 35, when pulling in the stairwell, the rollers 35 rotate in sequence on the stairs, and the stairs can be climbed. However, different stairs have different single-layer heights. At this time, the moving component 19 is placed on the ground, and the handle 47 is rotated, the handle 47 drives the connecting shaft 21 to rotate, the connecting shaft 21 drives the rotating shaft 22 to rotate, the rotating shaft 22 drives the three second threaded rods 30 to rotate, and the second threaded rods 30 drive the second threaded block 31 to move until it is in a suitable position. The distance between the rollers 35 can be adjusted according to the height of the stairs, which is suitable for stairs of different heights. It should be noted that the threaded rods have a self-locking function. During the process of climbing the stairs, the rotation of the triangle plate 27 will directly drive the rotating shaft 22 to rotate, and the position of the roller 35 relative to the triangle plate 27 will not change.

[0051] In the present invention, the moving assembly 19 is installed on the rotating shaft 22, and the connecting shaft 21 and the rotating shaft 22 are connected by a transmission mechanism 23. Specifically, the transmission mechanism 23 includes a first pulley 44 and a second pulley 45. The first pulley 44 is coaxially fixedly connected to the connecting shaft 21, and the second pulley 45 is coaxially fixedly connected to the rotating shaft 22. The first pulley 44 and the second pulley 45 are connected by a synchronous belt transmission. An L-shaped groove 26 is provided on the secondary vertical rod 2, and a slider 25 is slidably connected in the L-shaped groove 26. The side wall of the slider 25 is rotatably connected to the adjusting rod 24, and the adjusting rod 24 is away from the slider. One end of the block 25 is rotatably connected to the support rod 20, and a connecting rod 38 is fixedly connected to the slider 25. The end of the connecting rod 38 away from the slider 25 passes through the L-shaped groove 26 and is fixedly connected to the limit plate 39. A card plate 37 is provided on the outer sliding sleeve of the connecting rod 38, and a spring 40 is provided on the outer sleeve of the connecting rod 38. The two ends of the spring 40 are respectively fixedly connected to the card plate 37 and the limit plate 39. The secondary upright rod 2 is fixedly connected to a card strip 36 matching the card plate 37. Furthermore, a card groove is provided on the end of the card strip 36 away from the secondary upright rod 2, and a card tooth matching the card strip 36 is provided on the card plate 37.

[0052] Through the above technical features: pull the card plate 37 to stagger the card plate 37 and the card strip 36, and then push the limit plate 39, the limit plate 39 drives the slider 25 to move, and the slider 25 drives the support rod 20 to rotate through the adjusting rod 24 until it is in a suitable position. At this time, the moving component 19 is unfolded relative to the auxiliary vertical rod 2, and then the pedal 4 is synchronously unfolded to form a storage groove, so that the ladder as a whole forms a cart. When moving the ladder, it can be moved by the moving component 19, which is more convenient for carrying the ladder. At the same time, other tools can be placed through the storage groove.

[0053] Working principle:

[0054] 1) When climbing stairs: by rotating the handle 47, the handle 47 drives the connecting shaft 21 to rotate, the connecting shaft 21 drives the rotating shaft 22 to rotate, the rotating shaft 22 drives the three second threaded rods 30 to rotate, and the second threaded rods 30 drive the second threaded block 31 to move until it reaches a suitable position, and the distance between the rollers 35 can be adjusted according to the height of the stairs, which is suitable for stairs of different heights. Then, the handle 3 can be pulled to move along the stairs. When pulled, the rollers 35 rotate on the stairs in sequence, and the stairs can be climbed;

[0055] 2) When unfolding the ladder: by rotating the adjustment handle 17, the adjustment handle 17 drives the rotating rod 14 to rotate, the rotating rod 14 drives the four transmission gears 16 to rotate relatively, the four transmission gears 16 drive the other rotating rods 14 to rotate, the rotating rod 14 drives the first threaded rod 12 to rotate, the first threaded rod 12 drives the secondary vertical rod 2 to move through the first threaded block 13 until the length is reached. At this time, adjust the angle between the two sets of main vertical rods 1 to a suitable position, and the ladder can be unfolded;

[0056] 3) When folding the ladder into a cart: pull the card plate 37 to stagger the card plate 37 and the card strip 36, then push the limit plate 39, the limit plate 39 drives the slider 25 to move, and the slider 25 drives the support rod 20 to rotate through the adjustment rod 24 until it is in a suitable position. At this time, the moving assembly 19 is unfolded relative to the auxiliary rod 2, and then the pedal 4 is unfolded synchronously to form a storage groove, so that the ladder as a whole can be formed into a cart.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foldable ladder for indoor decoration, characterized in that: include, Two groups of main vertical poles (1) and two groups of secondary vertical poles (2), wherein the secondary vertical poles (2) are slidably mounted on the main vertical poles (1), the upper ends of the two groups of main vertical poles (1) are rotatably connected, a handle (3) is fixedly mounted on the upper end of the group of main vertical poles (1) on the left side, a plurality of pedals (4) are rotatably connected between the group of main vertical poles (1) on the left side, a plurality of cross bars (5) are rotatably connected between the group of secondary vertical poles (2) on the left side, support feet (6) are mounted on the lower ends of the two groups of secondary vertical poles (2), and a buckle (7) is arranged between the two groups of main vertical poles (1); An adjusting mechanism (9) is used to adjust the positions of two sets of auxiliary uprights (2), the adjusting mechanism (9) comprising a groove (10) arranged on the main upright (1), a first threaded rod (12) being rotatably connected in the groove (10), a first threaded block (13) being externally threadedly sleeved on the first threaded rod (12), the first threaded block (13) being fixedly connected to the corresponding auxiliary upright (2), a transmission groove (11) being arranged on the main upright (1), the upper end of the first threaded rod (12) being rotatably penetrated through the main upright (1) and extending to the transmission groove ( 11), a rotating rod (14) is rotatably connected in the transmission groove (11), the rotating rod (14) and the first threaded rod (12) are transmission-connected via a first bevel gear set (41), four rotating rods (14) are all rotationally penetrated through the main vertical rod (1), two main vertical rods (1) located on the same side are transmission-connected via a gear set (15), two rotating rods (14) located on the left side are rotationally penetrated through the main vertical rod (1) and are coaxially fixedly connected, and one of the rotating rods (14) is coaxially fixedly connected with an adjusting handle (17); A storage mechanism (18) is used for storing tools, the storage mechanism (18) comprising a bottom plate (8), a plurality of pedals (4) are rotatably connected to the bottom plate (8), and the bottom plate (8) is located between two sets of main uprights (1); A moving mechanism (46) is used to move the ladder. The moving mechanism (46) comprises two moving assemblies (19). A group of the auxiliary uprights (2) located on the right side is rotatably provided with a connecting shaft (21). Both sides of the connecting shaft (21) are rotatably connected to support rods (20). One end of the connecting shaft (21) is coaxially fixedly connected to a rotating handle (47). The side of the support rod (20) away from the connecting shaft (21) is rotatably connected to a rotating shaft (22). The moving assembly (19) is mounted on the rotating shaft (22). The connecting shaft (21) and the rotating shaft (22) are transmission-connected via a transmission mechanism (23). An L-shaped groove (26) is provided on the auxiliary uprights (2). The L-shaped groove (26) is internally slidable. The auxiliary upright rod (2) is rotatably connected to a slider (25), and the side wall of the slider (25) is rotatably connected to an adjusting rod (24). One end of the adjusting rod (24) away from the slider (25) is rotatably connected to the support rod (20). The slider (25) is fixedly connected to a connecting rod (38). One end of the connecting rod (38) away from the slider (25) passes through an L-shaped groove (26) and is fixedly connected to a limiting plate (39). A card plate (37) is provided on the outer sliding sleeve of the connecting rod (38). A spring (40) is provided on the outer sleeve of the connecting rod (38). Two ends of the spring (40) are respectively fixedly connected to the card plate (37) and the limiting plate (39). The auxiliary upright rod (2) is fixedly connected to a card strip (36) matching the card plate (37).

2. The foldable ladder for indoor decoration according to claim 1, characterized in that: The first bevel gear set (41) comprises a first bevel gear (42) and a second bevel gear (43) meshing with each other, the first bevel gear (42) being coaxially fixedly connected to the rotating rod (14), and the second bevel gear (43) being coaxially fixedly connected to the first threaded rod (12).

3. The foldable ladder for indoor decoration according to claim 1, characterized in that: The gear set (15) comprises two mutually meshing transmission gears (16), and the two transmission gears (16) are respectively coaxially fixedly connected to two rotating rods (14).

4. The foldable ladder for indoor decoration according to claim 1, characterized in that: The moving assembly (19) comprises a triangular plate (27), three adjusting grooves (28) are provided on the triangular plate (27), a second threaded rod (30) is rotatably connected in the adjusting groove (28), a second threaded block (31) is externally threadedly sleeved on the second threaded rod (30), the second threaded block (31) is slidably connected to the adjusting groove (28), three rollers (35) are provided outside the triangular plate (27), the three rollers (35) are rotatably connected to the three second threaded blocks (31) respectively, a moving groove (29) is provided at the middle position of the triangular plate (27), the three second threaded rods (30) are all rotatably penetrated through the triangular plate (27) and extended to be arranged in the moving groove (29), the rotating shaft (22) is rotatably penetrated through the triangular plate (27) and extended to be arranged in the moving groove (29), the rotating shaft (22) is rotatably connected to the second threaded rod (30) through the second bevel gear set (32).

5. The foldable ladder for indoor decoration according to claim 4, characterized in that: The second bevel gear set (32) comprises a third bevel gear (33) and three fourth bevel gears (34) meshing with each other, the third bevel gear (33) being coaxially fixedly connected to the rotating shaft (22), and the three fourth bevel gears (34) being coaxially fixedly connected to the three second threaded rods (30), respectively.

6. The foldable ladder for indoor decoration according to claim 1, characterized in that: The transmission mechanism (23) comprises a first pulley (44) and a second pulley (45); the first pulley (44) is coaxially fixedly connected to the connecting shaft (21); the second pulley (45) is coaxially fixedly connected to the rotating shaft (22); and the first pulley (44) and the second pulley (45) are connected via a synchronous belt transmission.

7. The foldable ladder for indoor decoration according to claim 1, characterized in that: A clamping groove is provided at one end of the clamping strip (36) away from the auxiliary upright rod (2), and a clamping tooth matching the clamping strip (36) is provided on the clamping plate (37).

8. The foldable ladder for indoor decoration according to claim 1, characterized in that: The plurality of pedals (4) are distributed in a uniform array, and the plurality of cross bars (5) are arranged corresponding to the plurality of pedals (4).

9. The foldable ladder for indoor decoration according to claim 4, characterized in that: The three rollers (35) correspond to the three corners of the triangular plate (27) respectively.

10. The foldable ladder for indoor decoration according to claim 1, characterized in that: The angle between the pedal (4) and the main upright (1) ranges from 30° to 90°.

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