Extensible lifting platform

Abstract

The utility model discloses an extensible lifting platform, relates to the technical field of lifting platforms, and comprises a movable base, the left side and the right side of the movable base are fixedly connected with limiting assemblies, an inner cavity in the middle of the movable base is fixedly connected with a driving assembly, and the four corners of the upper surface of the movable base are fixedly connected with hydraulic rods. According to the extensible lifting platform, under the action of the motor, the second gear, the third gear and the threaded rod, the two telescopic platforms move oppositely under the action of the steel balls, so that the two U-shaped baffles move in the opposite directions under the action of the moving wheels and the sliding rails, and the lifting platform is expanded; under the action of steel balls, the telescopic platform can quickly move under the action of a threaded rod, meanwhile, under the action of sliding rails and moving wheels, when a U-shaped baffle and the telescopic platform extend outwards, the stability can be guaranteed, meanwhile, the supporting strength is improved, and therefore use safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting platforms, in particular to an expandable lifting platform. Background Art

[0002] The lifting platform is a multifunctional lifting and loading and unloading mechanical equipment, which can be divided into fixed and mobile types: the mobile type is divided into straight arm type, curved arm type, scissors type, mast type, aluminum alloy lifting platform, cylinder type: the fixed type includes scissors type, guide rail lifting platform, chain lifting platform, loading and unloading platform and attached electric construction platform, etc.

[0003] Chinese patent document CN220012059U discloses an expandable lifting platform, which relates to the technical field of lifting platforms, including a first extension side panel, a platform is provided on one side of the first extension side panel, a second extension side panel is provided on the side of the platform away from the first extension side panel, an extension component is provided between the bottoms of the first extension side panel and the second extension side panel, so as to realize the expansion of the platform by stretching the first extension side panel and the second extension side panel, a limiting component is provided on the top of the platform for limiting and fixing the extension component, and the extension component includes a gear, and the front and rear sides of the gear are respectively meshed with a first rack and a second rack. The utility model drives the first rack and the second rack to move relative to each other by rotating the rotating rod, thereby realizing the relative movement of the first extension side panel and the second extension side panel, so that the space on the top of the platform can be expanded and extended, increasing the range of activities of the operators, and improving the practicality of the platform.

[0004] The existing technology has the following problems:

[0005] The expandable lifting platform cannot be expanded well during use, and its stability and supporting strength cannot be guaranteed during expansion, so it is dangerous during use and inconvenient to use. In addition, it is not easy to limit and fix the expansion components of the expandable lifting platform before and after use, so it is not easy to transport, move or fix. Utility Model Content

[0006] The utility model provides an expandable lifting platform to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] An expandable lifting platform comprises a mobile base, wherein the left and right sides of the mobile base are fixedly connected to limit components, the inner cavity in the middle of the mobile base is fixedly connected to a driving component, the four corners of the upper surface of the mobile base are fixedly connected to hydraulic rods, the output ends of the four hydraulic rods are fixedly connected to an expansion component 1, and the left and right sides of the expansion component 1 are slidably connected to two symmetrical expansion components 2.

[0009] Preferably, the limit assembly includes a fixed shell, the outer wall of the fixed shell is fixedly connected to the outer wall of the movable base, a gear 1 is rotatably connected to the middle part of the inner cavity of the fixed shell, two symmetrical tooth plates are meshed on the upper and lower sides of the outer wall of the gear 1, the opposite surfaces of the two tooth plates away from the part of the gear 1 are fixedly connected to the limit plate, and the outer walls of the limit plate and the tooth plate are respectively slidably connected to the inner cavity of the fixed shell.

[0010] Preferably, the driving assembly includes a rotating wheel, the outer wall of the lower part of the rotating wheel is rotatably connected to the inner cavity of the central part of the movable base, the lower surface of the rotating wheel is fixedly connected to a bevel gear 1, the right side of the outer wall of the bevel gear 1 is meshed with a bevel gear 2, the inner cavity of the bevel gear 2 is fixedly connected to a connecting shaft, the outer walls of the left and right parts of the connecting shaft are respectively movably connected to the inner cavity of the movable base, and the left and right sides of the connecting shaft are respectively fixedly connected to the opposite surfaces of the two gears 1.

[0011] Preferably, the expansion component 1 includes a lifting platform, the lower surface of the lifting platform is fixedly connected to the output ends of four hydraulic rods, two symmetrical L-shaped side panels are fixedly connected to the front and rear sides of the lifting platform, the inner cavity in the middle of the lifting platform is fixedly connected to a motor, the output end of the motor is fixedly connected to gear 2, the front side of the outer wall of gear 2 is meshed with gear 3, and the left and right sides of gear 3 are fixedly connected to threaded rods.

[0012] Preferably, the second extension component includes a telescopic platform, and a plurality of steel balls are distributed in a linear array on the upper and lower sides of the front and rear parts of the telescopic platform, and the outer walls of the plurality of steel balls are respectively rotatably connected to the inner cavity of the lifting platform, and a U-shaped baffle is fixedly connected to the side of the telescopic platform away from the lifting platform, and the outer wall of the U-shaped baffle is movably connected to the inner walls of the two L-shaped side panels, and the lower surfaces of the front and rear parts of the U-shaped baffle are fixedly connected to slide rails, and the lower surfaces of the two slide rails are respectively slidably connected to the upper surface of the lifting platform.

[0013] Preferably, the front and rear parts of the U-shaped baffle away from the lower surface of a part of the lifting platform are fixedly connected with a telescopic plate, the inner walls of the lower parts of the two telescopic plates are rotatably connected with moving wheels and the two moving wheels are located on the front and rear sides of the fixed shell, and the side of the two telescopic plates away from the moving base is respectively overlapped with the side of the two limit plates close to the moving base.

[0014] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0015] The utility model provides an expandable lifting platform. Through the action of a motor, gear two, gear three and a threaded rod, two telescopic platforms are moved in opposite directions under the action of a plurality of steel balls, so that two U-shaped baffles are moved in opposite directions under the action of moving wheels and slide rails, thereby expanding the lifting platform. The telescopic platform can be quickly moved under the action of the threaded rod through the action of the steel balls, and at the same time, under the action of the slide rails and the moving wheels, the U-shaped baffles and the telescopic platform can ensure stability while increasing the supporting strength when expanding outward, thereby ensuring safe use.

[0016] The utility model provides an expandable lifting platform. Through the action of a rotating wheel, a bevel gear one and a bevel gear two, two gear ones can rotate simultaneously. Then, through the action of gear one, a tooth plate and a limit plate, the limit plate is moved to a side of the telescopic plate away from a movable base, so that the telescopic plate and the U-shaped baffle can be limited and fixed during movement or placement. Since the moving wheel is a fixable moving wheel, the expandable lifting platform can be fixed with the cooperation of the limit plate after being fixed, so that it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the expanded structure of the utility model;

[0019] Figure 3 It is a cross-sectional structural schematic diagram of the limit assembly and the movable base of the utility model;

[0020] Figure 4 For this utility model Figure 3 The enlarged structural diagram at A in the middle;

[0021] Figure 5 This is a schematic diagram of the structure of the second expansion component of the utility model;

[0022] Figure 6 It is a left side cross-sectional structural schematic diagram of the expansion component 1 and the expansion component 2 of the utility model;

[0023] Figure 7 It is a schematic diagram of the cross-sectional structure of an extension component 1 of the utility model.

[0024] In the figure: 1. Mobile base; 2. Limiting assembly; 3. Driving assembly; 4. Hydraulic rod; 5. Extension assembly 1; 6. Extension assembly 2; 21. Fixed shell; 22. Gear 1; 23. Tooth plate; 24. Limiting plate; 31. Rotating wheel; 32. Bevel gear 1; 33. Bevel gear 2; 34. Connecting shaft; 51. Lifting platform; 52. L-shaped side plate; 53. Motor; 54. Gear 2; 55. Gear 3; 56. Threaded rod; 57. Steel ball; 61. U-shaped baffle; 62. Telescopic plate; 63. Moving wheel; 64. Slide rail; 65. Telescopic platform. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1 As shown, an expandable lifting platform comprises a mobile base 1, the left and right sides of the mobile base 1 are fixedly connected to a limit assembly 2, the inner cavity in the middle of the mobile base 1 is fixedly connected to a driving assembly 3, the four corners of the upper surface of the mobile base 1 are fixedly connected to hydraulic rods 4, the output ends of the four hydraulic rods 4 are fixedly connected to an expansion assembly 1 5, and the left and right sides of the expansion assembly 1 5 are slidably connected to two symmetrical expansion assemblies 2 6;

[0027] When in use, the driving component 3 is used to enable the two expansion components 2 6 to move, and then the expansion component 1 5 is used to enable the two expansion components 2 6 to move in opposite directions so that the device is expanded. Finally, the hydraulic rod 4 is used to adjust the height of the expansion components 1 5 and the expansion components 2 6 after expansion so that they can be used.

[0028] like Figure 2 As shown, the front and rear parts of the lower surface of a part of the U-shaped baffle 61 away from the lifting platform 51 are fixedly connected with telescopic plates 62, and the inner walls of the lower parts of the two telescopic plates 62 are rotatably connected with moving wheels 63, and the two moving wheels 63 are located at the front and rear sides of the fixed shell 21, and the sides of the two telescopic plates 62 away from the moving base 1 are overlapped with the sides of the two limit plates 24 close to the moving base 1 respectively;

[0029] Through the action of the moving wheel 63, the U-shaped baffle 61 and the telescopic platform 65 are easy to adjust while increasing the supporting strength.

[0030] like Figure 3As shown, the driving assembly 3 includes a rotating wheel 31, the outer wall of the lower part of the rotating wheel 31 is rotatably connected to the inner cavity of the central part of the mobile base 1, the lower surface of the rotating wheel 31 is fixedly connected to a bevel gear 1 32, the right side of the outer wall of the bevel gear 1 32 is meshed with a bevel gear 2 33, the inner cavity of the bevel gear 2 33 is fixedly connected to a connecting shaft 34, the outer walls of the left and right parts of the connecting shaft 34 are respectively movably sleeved with the inner cavity of the mobile base 1, and the left and right sides of the connecting shaft 34 are respectively fixedly connected to the opposite surfaces of the two gears 1 22;

[0031] By rotating the rotating wheel 31, the bevel gear 1 32 drives the bevel gear 2 33 to rotate, so that the two gears 1 22 rotate under the action of the connecting shaft 34, so as to facilitate the rapid movement of the limiting plate 24 to limit and fix the telescopic plate 62.

[0032] like Figure 4 As shown, the limit assembly 2 includes a fixed shell 21, the outer wall of the fixed shell 21 is fixedly connected to the outer wall of the mobile base 1, the middle part of the inner cavity of the fixed shell 21 is rotatably connected to a gear 22, the upper and lower sides of the outer wall of the gear 22 are meshed with two symmetrical tooth plates 23, the opposite surfaces of the two tooth plates 23 away from a part of the gear 22 are fixedly connected to a limit plate 24, and the outer walls of the limit plate 24 and the tooth plate 23 are respectively slidably connected to the inner cavity of the fixed shell 21;

[0033] Through the action of gear 1 22, the two tooth plates 23 can move in opposite directions, thereby pushing the two limit plates 24 to move in opposite directions to the side of the two telescopic plates 62 away from the movable base 1, so as to facilitate the limiting and fixing of the U-shaped baffle 61 when moving and placing.

[0034] like Figure 5 , Figure 6 As shown, the second extension component 6 includes a telescopic platform 65, and a plurality of steel balls 57 are distributed in a linear array on both upper and lower sides of the front and rear parts of the telescopic platform 65, and the outer walls of the plurality of steel balls 57 are respectively rotatably connected to the inner cavity of the lifting platform 51, and a U-shaped baffle 61 is fixedly connected to the side of the telescopic platform 65 away from the lifting platform 51, and the outer wall of the U-shaped baffle 61 is movably connected to the inner walls of the two L-shaped side panels 52, and the lower surfaces of the front and rear parts of the U-shaped baffle 61 are fixedly connected to the slide rails 64, and the lower surfaces of the two slide rails 64 are respectively slidably connected to the upper surface of the lifting platform 51;

[0035] Through the action of the steel ball 57, the telescopic platform 65 can move quickly under the action of the threaded rod 56, so as to facilitate expansion. At the same time, under the action of the slide rail 64, the U-shaped baffle 61 and the telescopic platform 65 can ensure stability when expanding outward, thereby ensuring safe use.

[0036] like Figure 7As shown, the expansion component 1 5 includes a lifting platform 51, the lower surface of the lifting platform 51 is fixedly connected to the output ends of the four hydraulic rods 4, the front and rear sides of the lifting platform 51 are fixedly connected with two symmetrical L-shaped side plates 52, the inner cavity in the middle of the lifting platform 51 is fixedly connected with a motor 53, the output end of the motor 53 is fixedly connected with a gear 2 54, the front side of the outer wall of the gear 2 54 is meshed with a gear 3 55, and the left and right sides of the gear 3 55 are fixedly connected with threaded rods 56;

[0037] By starting the motor 53, the gear 2 54 is rotated, so that the gear 3 55 drives the two threaded rods 56 to rotate. Under the action of the two threaded rods 56, the two telescopic platforms 65 move in opposite directions under the action of a number of steel balls 57, so that the two U-shaped baffles 61 move in opposite directions under the action of the moving wheels 63 and the slide rails 64, thereby expanding the lifting platform.

[0038] The working principle of the utility model is as follows: when in use, firstly, the rotating wheel 31 is rotated to make the bevel gear 1 32 drive the bevel gear 2 33 to rotate, so that the two gears 1 22 are rotated under the action of the connecting shaft 34, so as to facilitate the rapid movement of the limit plate 24 away from one side of the telescopic plate 62, so that the two telescopic plates 62 can be moved and adjusted, and then the motor 53 is started to make the gear 2 54 rotate, so that the gear 3 55 drives the two threaded rods 56 to rotate, and under the action of the two threaded rods 56, the two telescopic platforms 65 are moved in a certain The two U-shaped baffles 61 move in opposite directions under the action of the moving wheels 63 and the slide rails 64, thereby expanding the lifting platform. The steel balls 57 and the moving wheels 63 enable the telescopic platform 65 to move quickly and stably under the action of the threaded rods 56, thereby facilitating expansion and adjustment. Finally, the lifting platform 51 and the L-shaped side panels 52 drive the U-shaped baffles 61 and the telescopic platform 65 to move upward under the action of the telescopic plates 62 through the action of the hydraulic rods 4, thereby performing height adjustment during use.

[0039] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An expandable lifting platform, comprising a movable base (1), characterized in that: The left and right sides of the mobile base (1) are fixedly connected to the limit assembly (2), the inner cavity in the middle of the mobile base (1) is fixedly connected to the driving assembly (3), the four corners of the upper surface of the mobile base (1) are fixedly connected to the hydraulic rods (4), the output ends of the four hydraulic rods (4) are fixedly connected to the expansion assembly 1 (5), and the left and right sides of the expansion assembly 1 (5) are slidably connected to two symmetrical expansion assemblies 2 (6).

2. The expandable lifting platform according to claim 1, characterized in that: The limit assembly (2) comprises a fixed shell (21), the outer wall of the fixed shell (21) is fixedly connected to the outer wall of the movable base (1), a gear 1 (22) is rotatably connected to the middle of the inner cavity of the fixed shell (21), two symmetrical tooth plates (23) are meshed on the upper and lower sides of the outer wall of the gear 1 (22), the opposite surfaces of the two tooth plates (23) away from the part of the gear 1 (22) are fixedly connected to the limit plate (24), and the outer walls of the limit plate (24) and the tooth plate (23) are respectively slidably connected to the inner cavity of the fixed shell (21).

3. The expandable lifting platform according to claim 2, characterized in that: The driving assembly (3) comprises a rotating wheel (31), the outer wall of the lower part of the rotating wheel (31) is rotatably connected to the inner cavity of the central part of the movable base (1), the lower surface of the rotating wheel (31) is fixedly connected to a bevel gear 1 (32), the right side of the outer wall of the bevel gear 1 (32) is meshed with a bevel gear 2 (33), the inner cavity of the bevel gear 2 (33) is fixedly connected to a connecting shaft (34), the outer walls of the left and right parts of the connecting shaft (34) are respectively movably sleeved with the inner cavity of the movable base (1), and the left and right sides of the connecting shaft (34) are respectively fixedly connected to the opposite surfaces of the two gears 1 (22).

4. The expandable lifting platform according to claim 1, characterized in that: The expansion component 1 (5) comprises a lifting platform (51), the lower surface of the lifting platform (51) is fixedly connected to the output ends of the four hydraulic rods (4), the front and rear sides of the lifting platform (51) are fixedly connected to two symmetrical L-shaped side plates (52), the inner cavity in the middle of the lifting platform (51) is fixedly connected to a motor (53), the output end of the motor (53) is fixedly connected to a gear 2 (54), the front side of the outer wall of the gear 2 (54) is meshed with a gear 3 (55), and the left and right sides of the gear 3 (55) are fixedly connected to threaded rods (56).

5. The expandable lifting platform according to claim 4, characterized in that: The second extension component (6) comprises a telescopic platform (65), and a plurality of steel balls (57) are linearly arrayed on the upper and lower sides of the front and rear parts of the telescopic platform (65), and the outer walls of the plurality of steel balls (57) are rotatably connected to the inner cavity of the lifting platform (51). A U-shaped baffle (61) is fixedly connected to the side of the telescopic platform (65) away from the lifting platform (51), and the outer wall of the U-shaped baffle (61) is movably connected to the inner walls of the two L-shaped side panels (52). The lower surfaces of the front and rear parts of the U-shaped baffle (61) are fixedly connected to the slide rails (64), and the lower surfaces of the two slide rails (64) are slidably connected to the upper surface of the lifting platform (51).

6. The expandable lifting platform according to claim 5, characterized in that: The front and rear parts of the lower surface of a part of the U-shaped baffle (61) away from the lifting platform (51) are fixedly connected to the telescopic plate (62), the inner walls of the lower parts of the two telescopic plates (62) are rotatably connected to the moving wheels (63), and the two moving wheels (63) are located on the front and rear sides of the fixed shell (21), and the sides of the two telescopic plates (62) away from the moving base (1) are respectively overlapped with the sides of the two limit plates (24) close to the moving base (1).

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