A foldable lifting platform

Abstract

The present invention discloses a foldable and deformable lifting platform, comprising a first bottom plate, a second bottom plate and a working box arranged between the first bottom plate and the second bottom plate, the left sides of the first bottom plate and the second bottom plate opposite to each other are fixedly connected with guide plates, and the two guide plates are hingedly connected by hinges. The present invention forms a foldable storage structure through the coordinated arrangement of the first bottom plate, the second bottom plate, the working box, the guide plate, the connecting plate, the telescopic ladder assembly and the clamping assembly, which effectively reduces the occupied volume of the device during movement or transportation. When in use, the first bottom plate can be directly unfolded to realize the placement of the base, and under the coordinated action of the telescopic ladder assembly and the clamping assembly, the unfolded device is directly formed into a ladder platform with a certain height, providing convenient support conditions for maintenance personnel to inspect and maintain.

Description

Technical Field

[0001] The invention relates to the technical field of substation operation and maintenance auxiliary tools, and in particular to a foldable and variable lifting platform. Background Art

[0002] In substation operation and maintenance, maintenance personnel cannot perform flexible inspection and maintenance due to the relatively high line installation. They often need to use a lifting platform to transport maintenance personnel to a certain height from the ground. The existing lifting platform mechanism is relatively large in size, which is not conducive to flexible movement in the operation station. This is not only inconvenient to use, but also inconvenient for long-distance transportation. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a foldable and deformable lifting platform, which solves the problem that the existing lifting platform mechanism is large in overall size, not conducive to flexible movement in the operating station, not only inconvenient to use, but also inconvenient for long-distance transportation.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0005] The foldable and deformable lifting platform comprises a first base plate, a second base plate and a working box arranged between the first base plate and the second base plate, characterized in that: the left sides of the first base plate and the second base plate on opposite sides are fixedly connected to a guide plate, the two guide plates are hinged by a hinge, the front and rear sides of the right sides of the first base plate and the second base plate on opposite sides are fixedly connected to a connecting plate, the side of the top two connecting plates away from the first base plate and the side of the bottom two connecting plates away from the second base plate are rotatably connected to a telescopic step assembly, the side of the bottom two telescopic step assemblies away from the connecting plates are rotatably connected to the front and rear sides of the bottom of the working box through a rotating block, the side of the top two telescopic step assemblies away from the connecting plates are rotatably connected to the front and rear sides of the top of the working box through a rotating block, and the left side of the working box is rotatably connected to a clamping assembly adapted to the telescopic step assembly through a rotating frame.

[0006] Preferably, the telescopic ladder assembly comprises a first set of plates, a second set of plates and a third set of plates, the first set of plates are slidably connected to the second set of plates, the second set of plates are slidably connected to the third set of plates, and when the second set of plates is pulled to the limit relative to the first set of plates, the second set of plates is locked with the first set of plates; when the third set of plates is pulled to the limit relative to the second set of plates, the third set of plates is locked with the second set of plates;

[0007] At least two positioning holes are opened on the surface of the third set of plates, and a step column is fixedly connected between the corresponding sides of the two second sets of plates arranged on the front and rear sides and between the corresponding sides of the two third sets of plates, and a step plate is fixedly connected between the corresponding sides of the two connecting plates arranged on the front and rear sides.

[0008] Preferably, the clamping assembly includes a threaded sleeve, two screw rods, two clamping plates and four clamping frames, the two ends of the inner surface of the threaded sleeve are respectively threadedly connected to the outer surfaces of the two screw rods, the side of the screw rod away from the threaded sleeve is rotatably connected to one side of the clamping plate through a bearing, the four clamping frames are respectively fixedly mounted on the front and rear sides of the opposite sides of the two clamping plates, and the surface of the clamping frames is threadedly connected with positioning bolts matching the positioning holes.

[0009] Preferably, the left sides of the first bottom plate and the second bottom plate are both provided with linkage holes, and a pin plate is slidably mounted on the inner surface of the linkage hole in the second bottom plate.

[0010] Preferably, blind holes are provided on the right side of the top of the first base plate and the right side of the bottom of the second base plate, and retractable threaded rods are penetrated and threadedly connected to the right sides of the opposite sides of the first base plate and the second base plate, one end of the retractable threaded rod extends to the interior of the blind hole and is fixedly connected to a universal self-locking roller, and handles are fixedly connected to the front and rear sides of the left side of the guide plate in the second base plate.

[0011] Preferably, the inner cavity of the work box is provided with a workbench adapted to the work box, and the workbench and the work box are connected by a scissor-type lifting frame.

[0012] Beneficial Effects

[0013] The present invention provides a foldable and variable lifting platform. Compared with the existing technology, it has the following beneficial effects:

[0014] (1) The foldable and deformable lifting platform, through the coordinated arrangement of the first bottom plate, the second bottom plate, the working box, the guide plate, the connecting plate, the telescopic step assembly and the clamping assembly, forms a foldable storage structure, which effectively reduces the volume occupied by the device during movement or transportation. When in use, the first bottom plate can be directly unfolded to realize the placement of the base, and under the coordinated action of the telescopic step assembly and the clamping assembly, the unfolded device can directly form a step platform with a certain height, providing convenient support conditions for maintenance personnel to inspect and maintain.

[0015] (2) The foldable and variable lifting platform can freely adjust the height of the universal self-locking roller by coordinating the blind hole, the retractable threaded rod, the universal self-locking roller and the handle. When the device is stationary, the universal self-locking roller can be directly stored in the blind hole to ensure that the first bottom plate and the second bottom plate are in close contact with the ground, thereby ensuring the stability of the device during use. When moving, the universal self-locking roller is moved out of the blind hole, and the device can be pulled to move with the handle, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the external structure of the present invention after folding;

[0017] Figure 2 It is a schematic diagram of the external structure of the present invention after it is unfolded;

[0018] Figure 3 It is a connection diagram of the working box, folding bracket, working table and telescopic rod structure of the present invention.

[0019] In the figure: 1. first base plate; 2. second base plate; 3. working box; 4. guide plate; 5. connecting plate; 6. telescopic step assembly; 7. clamping assembly; 8. first set of plates; 9. second set of plates; 10. third set of plates; 11. positioning hole; 12. step column; 13. step plate; 14. threaded sleeve; 15. screw rod; 16. clamping plate; 17. clamping bracket; 18. positioning bolt; 19. linkage hole; 20. pin plate; 21. blind hole; 22. retractable threaded rod; 23. universal self-locking roller; 24. handle; 25. folding bracket; 26. workbench; 27. telescopic rod. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-3The present invention provides a technical solution: a foldable and deformable lifting platform, comprising a first bottom plate 1, a second bottom plate 2 and a working box 3 arranged between the first bottom plate 1 and the second bottom plate 2, the left sides of the opposite sides of the first bottom plate 1 and the second bottom plate 2 are fixedly connected with guide plates 4, the two guide plates 4 are hingedly connected by hinges, the front and rear sides of the right sides of the opposite sides of the first bottom plate 1 and the second bottom plate 2 are fixedly connected with connecting plates 5, the sides of the top two connecting plates 5 away from the first bottom plate 1 and the sides of the bottom two connecting plates 5 away from the second bottom plate 2 are rotatably connected with telescopic step assemblies 6, the sides of the bottom two telescopic step assemblies 6 away from the connecting plates 5 are rotatably connected with the front and rear sides of the bottom of the working box 3 through a rotating block, and the top two telescopic step assemblies 6 are far away from the first bottom plate 1. One side away from the connecting plate 5 is rotatably connected to the front and rear sides of the top of the working box 3 through a rotating block, and the left side of the working box 3 is rotatably connected to a clamping assembly 7 compatible with the telescopic step assembly 6 through a rotating frame. Through the coordinated arrangement of the first base plate 1, the second base plate 2, the working box 3, the guide plate 4, the connecting plate 5, the telescopic step assembly 6 and the clamping assembly 7, a foldable storage structure is formed, which effectively reduces the volume occupied by the device during movement or transportation. When in use, the first base plate 1 can be directly unfolded to realize the placement of the base, and with the coordinated action of the telescopic step assembly 6 and the clamping assembly 7, the unfolded device is directly formed into a step platform with a certain height, providing convenient support conditions for maintenance personnel to inspect and maintain.

[0022] Furthermore, the telescopic ladder assembly 6 includes a first set of plates 8, a second set of plates 9 and a third set of plates 10, the inner surface of the first set of plates 8 is in sliding contact with the outer surface of the second set of plates 9, and the inner surface of the second set of plates 9 is in sliding contact with the outer surface of the third set of plates 10. When the second set of plates 9 is pulled to the limit relative to the first set of plates 8, the second set of plates 9 and the first set of plates 8 are locked; when the third set of plates 10 is pulled to the limit relative to the second set of plates 9, the third set of plates 10 and the second set of plates 9 are locked; the above locking structure is a prior art.

[0023] At least two positioning holes 11 are provided on the surface of the third set of plates 10, and step columns 12 are fixedly connected between the corresponding sides of the two second sets of plates 9 arranged on the front and rear sides and between the corresponding sides of the two third sets of plates 10. The surface of the step columns 12 is provided with anti-slip grooves to increase the friction between the maintenance personnel and the step columns 12, and a step plate 13 is fixedly connected between the corresponding sides of the two connecting plates 5 arranged on the front and rear sides.

[0024] Furthermore, the clamping assembly 7 includes a threaded sleeve 14, two screw rods 15, two clamping plates 16 and four clamping frames 17. The two ends of the inner surface of the threaded sleeve 14 are respectively threadedly connected to the outer surfaces of the two screw rods 15. The side of the screw rod 15 away from the threaded sleeve 14 is rotatably connected to one side of the clamping plate 16 through a bearing. The four clamping frames 17 are respectively fixedly installed on the front and rear sides of the opposite sides of the two clamping plates 16, and the surface of the clamping frame 17 is threadedly connected with a positioning bolt 18 adapted to the positioning hole 11.

[0025] Furthermore, a linkage hole 19 is opened on the left side of the first bottom plate 1 and the second bottom plate 2, and a pin plate 20 is slidably installed on the inner surface of the linkage hole 19 in the second bottom plate 2. The cooperation between the pin plate 20 and the linkage hole 19 on the first bottom plate 1 can ensure that the first bottom plate 1 and the second bottom plate 2 are in the same horizontal state, thereby ensuring the horizontal stability of the work box 3.

[0026] Furthermore, a blind hole 21 is provided on the right side of the top of the first base plate 1 and the right side of the bottom of the second base plate 2, and a retractable threaded rod 22 is penetrated and threadedly connected to the right side of the opposite side of the first base plate 1 and the second base plate 2, one end of the retractable threaded rod 22 extends to the interior of the blind hole 21 and is fixedly connected to a universal self-locking roller 23, and handles 24 are fixedly connected to the front and rear sides of the left side of the guide plate 4 in the second base plate 2.

[0027] Furthermore, a workbench 26 adapted to the workbox 3 is provided on the right side of the inner cavity of the workbox 3. The workbench 26 and the workbox 3 are connected by a scissor-type lifting frame 25. The scissor-type lifting frame 25 is electrically driven, so that the height of the workbench 26 can be further raised, so that the device can be raised to a higher height, thereby improving the application range of the device.

[0028] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0029] When in use and during transportation, keep Figure 1 In the state shown, when moving, the retractable threaded rod 22 on the second bottom plate 2 is rotated to make the universal self-locking roller 23 disengage from the blind hole 21, and then the staff pulls the handle 24 to drive the device to move. After moving to the maintenance point, the retractable threaded rod 22 is rotated in the opposite direction to store the universal self-locking roller 23 into the blind hole 21, and then the first bottom plate 1 is rotated to the state flush with the second bottom plate 2, as shown in the attached figure. Figure 2As shown, the push rod is then pushed to drive the pin plate 20 to be inserted into the linkage hole 19 on the first base plate 1, and then the threaded sleeve 14 is rotated so that the two screw rods 15 drive the card plate 16 to move to both sides. When the positioning bolt 18 is facing the positioning hole 11, the positioning bolt 18 is tightened to fix the card frame 17 to the third set of plates 10, and the fixation of the device is completed. The maintenance personnel can climb onto the workbench 26 by stepping on the step plate 13 and the step column 12 in turn. When the height needs to be increased, the control switch of the telescopic rod 27 is started to control the folding bracket 25 to unfold, thereby lifting the workbench 26 to a certain height.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] 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 lifting platform, comprising a first bottom plate (1), a second bottom plate (2) and a working box (3) arranged between the first bottom plate and the second bottom plate (2), characterized in that: A guide plate (4) is fixedly connected to the left side of the opposite side of the first bottom plate (1) and the second bottom plate (2), and the two guide plates (4) are hingedly connected to each other. A connecting plate (5) is fixedly connected to the front and rear sides of the right side of the opposite side of the first bottom plate (1) and the second bottom plate (2). The sides of the two top connecting plates (5) away from the first bottom plate (1) and the sides of the two bottom connecting plates (5) away from the second bottom plate (2) are rotatably connected to a telescopic ladder assembly (6). The sides of the two bottom telescopic ladder assemblies (6) away from the connecting plates (5) are rotatably connected to the front and rear sides of the bottom of the working box (3) through a rotating block. The sides of the two top telescopic ladder assemblies (6) away from the connecting plates (5) are rotatably connected to the front and rear sides of the top of the working box (3) through a rotating block. The left side of the working box (3) is rotatably connected to a clamping assembly (7) adapted to the telescopic ladder assembly (6) through a rotating frame. A blind hole (21) is provided on the right side of the top of the first bottom plate (1) and the right side of the bottom of the second bottom plate (2); a retractable threaded rod (22) penetrates and is threadedly connected to the right side of the first bottom plate (1) and the second bottom plate (2); one end of the retractable threaded rod (22) extends into the interior of the blind hole (21) and is fixedly connected to a universal self-locking roller (23); and a handle (24) is fixedly connected to the front and rear sides of the left side of the guide plate (4) in the second bottom plate (2); The inner cavity of the working box (3) is provided with a working table (26) adapted to the working box (3), and the working table (26) and the working box (3) are connected via a scissor-type lifting frame (25).

2. A foldable and variable lifting platform according to claim 1, characterized in that: The telescopic ladder assembly (6) comprises a first set of plates (8), a second set of plates (9) and a third set of plates (10); the first set of plates (8) are slidably connected to the second set of plates (9), the second set of plates (9) are slidably connected to the third set of plates (10), and when the second set of plates (9) are pulled to the limit relative to the first set of plates (8), the second set of plates (9) and the first set of plates (8) are locked; when the third set of plates (10) are pulled to the limit relative to the second set of plates (9), the third set of plates (10) and the second set of plates (9) are locked; At least two positioning holes (11) are formed on the surface of the third set of plates (10); a step column (12) is fixedly connected between one side of two second set of plates (9) arranged at the front and rear sides and one side of two third set of plates (10) arranged at the front and rear sides; and a step plate (13) is fixedly connected between one side of two connecting plates (5) arranged at the front and rear sides.

3. A foldable and variable lifting platform according to claim 2, characterized in that: The clamping assembly (7) comprises a threaded sleeve (14), two screw rods (15), two clamping plates (16) and four clamping frames (17); the two ends of the inner surface of the threaded sleeve (14) are respectively threadedly connected to the outer surfaces of the two screw rods (15); the side of the screw rod (15) away from the threaded sleeve (14) is rotatably connected to one side of the clamping plate (16) via a bearing; the four clamping frames (17) are respectively fixedly mounted on the front and rear sides of the opposite sides of the two clamping plates (16); and the surface of the clamping frames (17) is threadedly connected with positioning bolts (18) that are compatible with the positioning holes (11).

4. A foldable and variable lifting platform according to any one of claims 1 to 3, characterized in that: The first bottom plate (1) and the second bottom plate (2) are both provided with linkage holes (19) on their left sides, and a pin plate (20) is slidably mounted on the inner surface of the linkage hole (19) in the second bottom plate (2).

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