Lifting platform

Abstract

The invention provides a lifting platform, and relates to the technical field of industrial equipment lifting platforms. According to the lifting table, the supporting mechanism is designed, a connecting block is rotated outwards to unfold a main rod, a movable plate at the tail end of a first screw is in contact with the ground of the mounting position of the lifting table, and the lifting table can be supported from the two narrow side faces of the lifting table, so that the overall anti-toppling performance of the lifting table is improved; and meanwhile, the situation that the lifting table shakes when lifting or heavy objects are placed is reduced, a limiting assembly is designed, a second rotating shaft is locked through an arc-shaped elastic piece, the inclined state of a supporting rod or an L-shaped supporting plate relative to a main rod can be independently selected, and the L-shaped supporting plate is locked at a certain inclined angle; therefore, the movable plate is used for abutting against the wall on the side face of the lifting table or other electrical equipment, the side face of the lifting table is supported in the vertical direction, the overall stability and safety are higher, and the situation that the lifting table turns on one side can be effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of industrial equipment lifting platforms, in particular to a lifting platform. Background Art

[0002] Industrial equipment plays an important role in factories and is a key factor in achieving automated production. The status of industrial equipment in the production field is becoming more and more important. With the continuous advancement of science and technology, industrial equipment is also constantly being updated and improved, and is developing in the direction of high efficiency, intelligence, and environmental protection. Traditional industrial equipment refers to various mechanical equipment, electrical equipment, and computer equipment used for factory production, processing, transportation, and storage, while commonly used industrial equipment generally includes mechanical equipment, electrical equipment, and computer equipment, including various types of machine tools, lifting and transportation equipment, compaction machinery and equipment, motors, power distribution equipment, lighting equipment, PLC (programmable logic controller), etc.

[0003] As a lifting platform is the most commonly used lifting machinery for vertically transporting people or objects in the field of industrial equipment applications, as well as a vertical transportation equipment in logistics systems such as factories and automatic warehouses. Due to the overall structure of the lifting platform being long and narrow, the overall area is relatively narrow, and the bottom of the lifting platform is light and has no supporting stabilization mechanism. When the platform is raised to a certain height, the center of gravity of the lifting platform is relatively high. When construction workers walk back and forth or place heavy objects of a certain weight on the platform, the platform as a whole is prone to shaking, with poor stability and safety, and is even prone to tipping over, affecting safe operations.

[0004] For this purpose, we have developed a new lifting platform. Summary of the invention

[0005] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a lifting platform, which solves the problem in the prior art that the overall structure of the lifting platform is long and narrow, the overall area is narrow, the bottom of the lifting platform is light and has no supporting stabilization mechanism. When the platform is raised to a certain height, the center of gravity of the lifting platform is relatively high. When construction workers walk back and forth or heavy objects of a certain weight are placed on the platform, the platform as a whole is prone to shaking, and the stability and safety are poor, and it is even easy to tip over, affecting safe operations.

[0006] (II) Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: a lifting platform, comprising a bottom plate and a top plate, the bottom plate and the top plate are symmetrically fixedly connected to the side plates on opposite sides, the two ends of one side of the outer surface of the plurality of side plates are respectively fixedly connected to a fixed seat and slidably connected to a sliding seat, and a scissor frame is hingedly connected between the fixed seat and the sliding seat connected to each group of two corresponding side plates; The lower surface of the bottom plate is fixedly connected with a mounting base, the front and back sides of the mounting base are symmetrically hinged with connecting blocks, one end of each of the connecting blocks is fixedly connected with a main rod, and one end of each of the main rods is installed with a supporting mechanism and a limiting component that cooperates with the supporting mechanism.

[0007] Preferably, the supporting mechanism includes a connecting plate symmetrically fixedly connected to one end of the main rod, and opposite sides of the two connecting plates are rotatably connected to a first rotating shaft. The outer surface of the first rotating shaft is sleeved with a connecting head fixedly connected, one side of the outer surface of the connecting head is fixedly connected to a support rod, one end of the lower surface of the support rod is fixedly connected to an L-shaped supporting plate, and one end of the L-shaped support plate is threadedly connected to a first screw.

[0008] Preferably, the support mechanism also includes connecting seats fixedly connected to the upper surfaces of the main rod and the support rod, respectively, one end of the upper surface of the two connecting seats is hinged with a first connecting rod, and one end of the two first connecting rods is commonly hinged with a second connecting rod, a third connecting rod is hinged to the middle part of the second connecting rod, one end of the third connecting rod is hinged to a fourth connecting rod, and one end of the third connecting rod is hinged to one end of the connecting seat close to the main rod, and one end of the fourth connecting rod is hinged to one end of another connecting seat.

[0009] Preferably, the limiting assembly includes a second rotating shaft that passes through one end of a connecting seat to which the main rod is connected, and the second rotating shaft passes through a side wall that is fixedly connected to the third connecting rod, and one end of the second rotating shaft located outside the connecting seat is sleeved with an arc-shaped spring piece, and both ends of the arc-shaped spring piece are fixedly connected with locking plates, and the side walls of the two locking plates are commonly threadedly connected with a second screw.

[0010] Preferably, one end of the first screw rod close to the support rod is fixedly connected to a rotating handle, and one end of the first screw rod away from the support rod is fixedly connected to a movable plate.

[0011] Preferably, a mounting rod is fixedly connected between the side walls of the two slide seats close to the top plate, a hydraulic cylinder is hingedly mounted on the upper surface of the bottom plate, and a piston end of the hydraulic cylinder is hingedly connected to the mounting rod.

[0012] Preferably, the side walls of the two sliding seats close to the bottom plate are both penetrated and fixedly connected with sliding rods, and the side walls of the two side plates connected to the bottom plate are both provided with sliding grooves matching with the sliding rods, and the outer surfaces of the sliding rods are respectively slidably connected with the inner walls of the corresponding sliding grooves.

[0013] Preferably, movable wheels are fixedly connected to the lower surface of the mounting base on all four sides, and the height of the movable wheels is less than the length of the first screw rod.

[0014] (III) Beneficial effects The present invention provides a lifting platform, which has the following beneficial effects: 1. The lifting platform is designed with a supporting mechanism. The connecting block is rotated outward to unfold the main rod. The movable plate at the end of the first screw is in contact with the ground at the installation position of the lifting platform, so that the lifting platform can be supported from the two narrower sides. This improves the overall anti-dumping performance of the lifting platform and reduces the shaking of the lifting platform when lifting or placing heavy objects. Moreover, when the lifting platform needs to be moved, the supporting mechanism can be retracted and closed to the side of the installation base to avoid affecting the transportation and movement work.

[0015] 2. The lifting platform is designed with a limit assembly, which locks the second rotating shaft through an arc-shaped spring piece. The support rod can be independently selected so that the inclination state of the L-shaped support plate relative to the main rod is locked, and the L-shaped support plate is locked at a certain angle. The movable plate is used to support the wall or other electrical equipment on the side of the lifting platform, and the side of the lifting platform is supported vertically. The overall stability and safety are stronger, which can effectively prevent the lifting platform from tipping over. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the connection structure of the top plate, the bottom plate and the scissor frame of the present invention; Figure 3 It is a schematic structural diagram of the top plate of the present invention; Figure 4 It is a structural schematic diagram of the support mechanism and the limiting assembly of the present invention; Figure 5 is a three-dimensional diagram of the support mechanism of the present invention; Figure 6 It is a schematic structural diagram of the limiting component of the present invention.

[0017] Among them, 1. mounting base; 2. bottom plate; 3. top plate; 4. side plate; 5. slide groove; 6. slide seat; 7. slide rod; 8. fixed seat; 9. scissors frame; 10. mounting rod; 11. hydraulic cylinder; 12. moving wheel; 13. connecting block; 14. main rod; 15. connecting plate; 16. first rotating shaft; 17. connecting head; 18. support rod; 19. L-shaped supporting plate; 20. first screw; 21. turning handle; 22. movable plate; 23. connecting seat; 24. first connecting rod; 25. second connecting rod; 26. third connecting rod; 27. fourth connecting rod; 28. second rotating shaft; 29. ​​arc-shaped spring piece; 30. locking plate; 31. second screw. DETAILED DESCRIPTION

[0018] 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.

[0019] Examples, such as Figure 1 - Figure 6 As shown, an embodiment of the present invention provides a lifting platform, including a bottom plate 2 and a top plate 3, the bottom plate 2 and the top plate 3 are symmetrically fixedly connected to the side plates 4 on opposite sides, the two ends of one side of the outer surface of the plurality of side plates 4 are respectively fixedly connected to the fixed seat 8 and the sliding seat 6 are slidably connected, and a scissor frame 9 is hingedly connected between the fixed seat 8 and the sliding seat 6 connected to each group of two corresponding side plates 4; Among them, a mounting rod 10 is fixedly connected between the side walls of the two slide seats 6 close to the top plate 3, and a hydraulic cylinder 11 is hingedly installed on the upper surface of the bottom plate 2, and the piston end of the hydraulic cylinder 11 is hingedly connected to the mounting rod 10; The side walls of the two slide seats 6 close to the bottom plate 2 are penetrated and fixedly connected with slide rods 7, and the side walls of the two side plates 4 connected to the bottom plate 2 are provided with slide grooves 5 matched with the slide rods 7, and the outer surfaces of the slide rods 7 are respectively slidably connected with the inner walls of the corresponding slide grooves 5; That is, the four arms extending from the scissor frame 9 are grouped in pairs, one group forms a fixed structure with the top plate 3 and the bottom plate 2, and the other group forms a sliding structure with the top plate 3 and the bottom plate 2, so that the left and right side structures of the scissor frame 9 are respectively in two states of position locking and position movable; The scissor frame 9 is composed of multiple scissor arms, which are hingedly connected to form a liftable frame structure. When the piston movement of the hydraulic cylinder 11 causes force to be applied to the nearby arms, the force and movement are transmitted through the hinged action between the arms, thereby finally achieving the height change of the overall scissor frame 9. This structure enables the lifting platform to have higher stability and load-bearing capacity during lifting, and is suitable for high-altitude operations and other scenarios requiring vertical lifting.

[0020] The hydraulic cylinder 11 is used to push the scissor frame 9 up and down, and the maximum length of the piston end of the hydraulic cylinder 11 is the maximum stroke of the scissor frame.

[0021] like Figure 1 As shown, the lower surface of the base plate 2 is fixedly connected to a mounting base 1, the front and back sides of the mounting base 1 are symmetrically hinged with connecting blocks 13, one end of each of the connecting blocks 13 is fixedly connected to a main rod 14, and one end of each of the main rods 14 is installed with a supporting mechanism and a limiting component that cooperates with the supporting mechanism.

[0022] like Figure 4 and Figure 5 As shown, the support mechanism includes a connecting plate 15 symmetrically fixedly connected to one end of the main rod 14, and the opposite sides of the two connecting plates 15 are rotatably connected to a first rotating shaft 16, and the outer surface of the first rotating shaft 16 is sleeved with a connecting head 17 fixedly connected, and one side of the outer surface of the connecting head 17 is fixedly connected to a support rod 18, and one end of the lower surface of the support rod 18 is fixedly connected to an L-shaped supporting plate 19, and one end of the L-shaped supporting plate 19 is threadedly connected to a first screw rod 20; Correspondingly, the end of the first screw rod 20 close to the support rod 18 is fixedly connected with a rotating handle 21, and the end of the first screw rod 20 away from the support rod 18 is fixedly connected with a movable plate 22. The rotating handle 21 can drive the first screw rod 20 to move along the L-shaped support plate 19, thereby changing the position of the movable plate 22 relative to the L-shaped support plate 19. In actual use, it is convenient for the movable plate 22 to abut against the ground where the integral lifting platform is installed. The connection between the connector 17 and the main rod 14 is connected by the rotation between the first rotating shaft 16 and the connecting plate 15, so that the angles between the connector 17, the support rod 18 and the L-shaped support plate 19 and the main rod 14 can be changed, so that the L-shaped support plate 19 is in different tilted states relative to the main rod 14, so as to adapt to different occasions for side support of the mounting base 1, so that the movable plate 22 associated with the L-shaped support plate 19 can be against other mounting equipment or walls on the side of the lifting platform; The support mechanism also includes connecting seats 23 fixedly connected to the upper surfaces of the main rod 14 and the support rod 18, respectively. A first connecting rod 24 is hinged to one end of the upper surface of the two connecting seats 23, and a second connecting rod 25 is hinged to one end of the two first connecting rods 24. A third connecting rod 26 is hinged to the middle of the second connecting rod 25, and a fourth connecting rod 27 is hinged to one end of the third connecting rod 26. One end of the third connecting rod 26 is hinged to one end of the connecting seat 23 close to the main rod 14, and one end of the fourth connecting rod 27 is hinged to one end of another connecting seat 23. The two connecting seats 23 respectively undertake the rotation between the main rod 14 and the support rod 18. When the third connecting rod 26 at one end of the connecting seat 23 on the main rod 14 (the third connecting rod 26 on the right side connected to the limit assembly) rotates, it can pull the connected fourth connecting rod 27. At the same time, the rotation of the third connecting rod 26 will also drive the movement of the second connecting rod 25, so that the angle between the first connecting rods 24 at both ends of the second connecting rod 25 and the connecting seats 23 connected to them is also changed, driving the connecting seat 23 connected by the fourth connecting rod 27 so that the support rod 18 can rotate around the main rod 14. That is, its working principle is to realize the movement of the variable pair through several fixed-length connecting rods and the rotating pairs on the connecting points. The contact area of ​​the connecting point is large and can withstand a certain load. The connecting rod transmission structure is compact, the connecting point will not be slightly displaced during operation, and it has high rigidity. The above-mentioned connecting rod structure can cooperate with the rotation relationship between the first rotating shaft 16 and the connecting plate 15, so that the rotating structure between the main rod 14 and the support rod 18 is more rigid.

[0023] like Figure 6 As shown, the limiting assembly includes a second rotating shaft 28 that passes through and is rotatably connected to one end of the connecting seat 23 connected to the main rod 14, the second rotating shaft 28 passes through and is fixedly connected to the side wall of the third connecting rod 26, and the end of the second rotating shaft 28 located outside the connecting seat 23 is sleeved with an arc-shaped spring piece 29, both ends of the arc-shaped spring piece 29 are fixedly connected to a locking plate 30, and the side walls of the two locking plates 30 are commonly threadedly connected to a second screw rod 31, and by rotating the second screw rod 31, the distance between the two locking plates 30 is shortened, thereby clamping the two ends of the arc-shaped spring piece 29, so that the arc-shaped spring piece 29 locks the outer surface of the second rotating shaft 28, wherein the side of the outer surface of the arc-shaped spring piece 29 away from the middle position of the end should be fixed to the outer surface of the connecting seat 23, so that the locking of the arc-shaped spring piece 29 can limit the deflection of the second rotating shaft 28, fix the rotation angle of the second rotating shaft 28 relative to the connecting seat 23, so as to lock the rotational tilting state of the support rod 18 relative to the main rod 14.

[0024] like Figure 1 As shown, movable wheels 12 are fixedly connected to the lower surface of the mounting base 1 on all sides, and the height of the movable wheels 12 is less than the length of the first screw rod 20. The existence of the movable wheels 12 enables the mounting base 1 and the entire lifting platform structure to be cheaply moved and the installation position to be changed. Only when the length of the first screw rod 20 is greater than the height of the movable wheels 12 can the first screw rod 20 and the movable plate 22 be used to support the mounting base 1.

[0025] Working principle: First, when the position of the lifting platform needs to be adjusted, the position of the installation base 1 can be changed by the moving wheel 12. When it moves to the designated installation position, the main rod 14 is unfolded by rotating the connecting block 13 outward, and then the handle 21 is rotated to drive the first screw rod 20 to move along the L-shaped support plate 19, thereby changing the position of the movable plate 22 relative to the L-shaped support plate 19. The movable plate 22 at the end of the first screw rod 20 is in contact with the ground at the installation position of the lifting platform, so that it can be supported from the two narrower sides of the lifting platform, thereby improving the overall anti-dumping performance of the lifting platform and reducing the shaking of the lifting platform when lifting or placing heavy objects. In addition, when the lifting platform needs to be moved, the support mechanism can be recovered and closed to the side of the installation base to avoid affecting the transportation and movement work; Furthermore, by rotating the second screw rod 31, the distance between the two locking plates 30 is shortened, thereby clamping the two ends of the arc-shaped spring piece 29, so that the arc-shaped spring piece 29 locks the outer surface of the second rotating shaft 28, and fixes the rotation angle of the second rotating shaft 28 relative to the connecting seat 23, so as to lock the rotational tilting state of the support rod 18 relative to the main rod 14. The support rod 18 and the inclination state of the L-shaped support plate 19 relative to the main rod 14 can be selected independently, and the L-shaped support plate 19 is locked at a certain inclination angle, so that the movable plate 22 is used to support the wall or other electrical equipment on the side of the lifting platform, and the side of the lifting platform is supported vertically, so that the overall stability and safety are stronger, and the lifting platform can be effectively prevented from tipping over.

[0026] 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 lifting platform, comprising a bottom plate (2) and a top plate (3), characterized in that: The bottom plate (2) and the top plate (3) are symmetrically fixedly connected to the side plates (4) on opposite sides thereof, and both ends of one side of the outer surface of the plurality of side plates (4) are respectively fixedly connected to a fixed seat (8) and slidably connected to a sliding seat (6), and a scissor frame (9) is hingedly connected between the fixed seat (8) and the sliding seat (6) connected to each group of two corresponding side plates (4); The lower surface of the bottom plate (2) is fixedly connected to a mounting base (1), the front and back sides of the mounting base (1) are symmetrically hinged with connecting blocks (13), one end of a plurality of the connecting blocks (13) are fixedly connected to a main rod (14), and one end of a plurality of the main rods (14) are installed with a supporting mechanism and a limiting assembly that cooperates with the supporting mechanism.

2. A lifting platform according to claim 1, characterized in that: The support mechanism comprises a connecting plate (15) symmetrically fixedly connected to one end of a main rod (14); opposite sides of the two connecting plates (15) are rotatably connected to a first rotating shaft (16); an outer surface of the first rotating shaft (16) is sleeved with a connecting head (17) fixedly connected thereto; one side of the outer surface of the connecting head (17) is fixedly connected to a supporting rod (18); one end of the lower surface of the supporting rod (18) is fixedly connected to an L-shaped supporting plate (19); one end of the L-shaped supporting plate (19) is threadedly connected to a first screw rod (20).

3. A lifting platform according to claim 2, characterized in that: The support mechanism further comprises a connecting seat (23) respectively fixedly connected to the upper surface of the main rod (14) and the supporting rod (18); one end of the upper surface of each of the two connecting seats (23) is hinged with a first connecting rod (24); one end of the two first connecting rods (24) is commonly hinged with a second connecting rod (25); a third connecting rod (26) is hinged at the middle of the second connecting rod (25); one end of the third connecting rod (26) is hinged with a fourth connecting rod (27); one end of the third connecting rod (26) is hinged with one end of the connecting seat (23) close to the main rod (14); one end of the fourth connecting rod (27) is hinged with one end of the other connecting seat (23).

4. A lifting platform according to claim 3, characterized in that: The limit assembly comprises a second rotating shaft (28) which passes through one end of a connecting seat (23) connected to the main rod (14) and is rotatably connected thereto; the second rotating shaft (28) passes through a side wall fixedly connected thereto of a third connecting rod (26); and one end of the second rotating shaft (28) located outside the connecting seat (23) is sleeved with an arc-shaped spring sheet (29) in contact therewith; both ends of the arc-shaped spring sheet (29) are fixedly connected to locking plates (30); and the side walls of the two locking plates (30) pass through a second screw rod (31) which is threadedly connected thereto.

5. A lifting platform according to claim 4, characterized in that: One end of the first screw rod (20) close to the support rod (18) is fixedly connected to a rotating handle (21), and one end of the first screw rod (20) away from the support rod (18) is fixedly connected to a movable plate (22).

6. A lifting platform according to claim 5, characterized in that: A mounting rod (10) is fixedly connected between the side walls of the two slide seats (6) close to the top plate (3), a hydraulic cylinder (11) is hingedly mounted on the upper surface of the bottom plate (2), and a piston end of the hydraulic cylinder (11) is hingedly connected to the mounting rod (10).

7. A lifting platform according to claim 6, characterized in that: The side walls of the two sliding seats (6) close to the bottom plate (2) are both penetrated by a sliding rod (7) that is fixedly connected thereto, and the side walls of the two side plates (4) connected to the bottom plate (2) are both provided with a sliding groove (5) that matches the sliding rod (7), and the outer surface of the sliding rod (7) is respectively slidably connected to the inner wall of the corresponding sliding groove (5).

8. A lifting platform according to claim 7, characterized in that: The lower surface of the mounting base (1) is fixedly connected to moving wheels (12) on all sides, and the height of the moving wheels (12) is less than the length of the first screw rod (20).

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