A platform lift vehicle with a protection function

Abstract

The application discloses a platform lifting vehicle with a protection function and belongs to the technical field of lifting equipment. The lifting vehicle comprises a base, a workbench and a main scissor lifting frame. The base is provided with a bearing mechanism for improving ground contact stability on opposite sides. The bearing mechanism is fixedly connected with a supporting mechanism for laterally assisting the workbench. The bearing mechanism is composed of multiple groups of rotating plates, connecting plates and resisting plates. After being unfolded, the bearing mechanism can increase the ground contact area of the base and improve the chassis stability. The supporting mechanism comprises a fixed rod, a winding disc, a guide rope and a scissor frame. The scissor frame is connected with a piston rod through a middle shaft connecting cylinder. The cylinder is rigidly connected by cooperating with an air pump to form a lateral rigid supporting structure. The workbench is provided with an unfoldable protective net on the side, and a conveying mechanism is arranged in cooperation, so that the convenient conveying of articles between the ground and the workbench can be realized. The application improves the lateral stability and high-altitude operation safety of the workbench, prolongs the service life of the lifting frame, and is more convenient to use.

Description

Technical Field

[0001] This invention belongs to the field of lifting equipment technology, and specifically relates to a platform lifting vehicle with protective functions. Background Technology

[0002] Platform scissor lifts are widely used lifting equipment that can raise goods or personnel to different heights to complete high-altitude operations or loading and unloading tasks. A typical platform scissor lift consists of a chassis located on the ground, a work platform for lifting to the appropriate height, and multiple hydraulic scissor lifts for raising the work platform. The hydraulic system activates the scissor lifts to raise the work platform to the appropriate height. In conventional platform scissor lifts, the hydraulic scissor lifts are usually arranged vertically. While the scissor structure occupies less space when folded and is more stable during lifting, a tilted arrangement can easily cause the center of gravity to shift, affecting its stability and leading to uneven stress at the hinges, making the lifts prone to loosening or damage. Therefore, the scissor lifts in general platform scissor lifts are only used to provide vertical support for the work platform. When the weight distribution on the work platform is uneven, some scissor lifts may experience excessive stress, while others may experience relatively less stress, reducing the stability of the work platform and potentially affecting the lifespan of the lifts, which is inconvenient. Summary of the Invention

[0003] The purpose of this invention is to provide a platform lift with protective functions to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A platform lifting vehicle with protective functions includes a base, and a work platform is provided above the base. Multiple scissor lift frames are arranged between the base and the work platform, including: Two load-bearing mechanisms for providing ground stability and two support mechanisms for providing lateral auxiliary support to the raised work platform are provided. The two load-bearing mechanisms are located on opposite sides of the base, and the two support mechanisms are fixedly connected to the two load-bearing mechanisms. Each support mechanism includes a fixed rod, and both ends of the fixed rod are fixedly connected to a support plate. Each support plate is fixedly connected to the adjacent load-bearing mechanism. Two connecting cylinders are slidably sleeved on the fixed rod. A winding reel is rotatably sleeved on the outer wall of each connecting cylinder. A guide rope is fixedly wound on each winding reel. A scissor frame is provided between the two guide ropes. Screw holes are provided at both ends of each connecting cylinder.

[0005] Furthermore, the worktable is fixedly connected to two slide rails on each of its opposite sides, and each slide rail has a slider that is slidably engaged inside it, and each slider has a hanging ring that is fixedly connected to it.

[0006] Furthermore, the scissor frame includes multiple interconnected cross units, each cross unit includes two rods, the two rods in any cross unit are rotatably connected by a central shaft, two positioning ropes are provided between two adjacent cross units, and the cross units at both ends are equipped with two clamping plates, each clamping plate has a circular hole at one end, wherein the circular holes on the two clamping plates at one end are respectively fixedly sleeved with two guide ropes, and the circular holes on the two clamping plates at the other end are respectively slidably sleeved with two guide ropes.

[0007] Furthermore, each central shaft is fixedly connected to a cylinder at one end, each cylinder has an open end, each cylinder has a piston rod slidably sleeved at one end, each cylinder has an insertion port at the other end, each piston rod is movably engaged inside an adjacent insertion port, each cylinder is fixedly connected to a conduit, each conduit is connected to the interior of an adjacent cylinder, and the scissor frame is equipped with an air pump, and the air outlet of the air pump is connected to multiple conduits through a multi-port connector.

[0008] Furthermore, each of the outer walls of the central axis is provided with a connecting hole, the scissor frame is equipped with a pull strap, and the pull straps pass through multiple adjacent connecting holes in sequence. One end of each pull strap is fixedly connected to the connecting hole located at one end, and the two adjacent cylinders are arranged in opposite directions.

[0009] Furthermore, a pull rope is fixedly connected between the two plates at the other end of any scissor frame.

[0010] Furthermore, the supporting mechanism includes: Multiple rotating plates and multiple connecting plates are arranged horizontally in sequence. One side of the rotating plate at one end is rotatably connected to the base, and the rotating plates at the other end are fixedly connected to two support plates on the adjacent fixed rod. Multiple connecting plates are rotatably connected to multiple abutment plates on opposite sides, and any connecting plate is rotatably connected to two adjacent rotating plates.

[0011] Furthermore, U-shaped plates are fixedly connected to the top surfaces of the rotating plates on both sides of the workbench and at the other end of the two bearing mechanisms. Insert cylinders are rotatably connected between the two arms of the U-shaped plates on both sides of the workbench. Clamping heads are rotatably connected between the two arms of the U-shaped plates on the two rotating plates. A rotating roller is rotatably connected to the rotating plate at the other end of any bearing mechanism. A protective net is fixedly wrapped around the outer wall of any rotating roller.

[0012] Furthermore, each of the bearing mechanisms has a rotating plate at the other end fixedly connected to a guide rod, each guide rod has multiple connecting ropes fixedly connected to its outer side wall, each connecting rope has a hook fixedly connected to one end, and the base has multiple connecting hooks fixedly connected to its opposite sides, with each hook being movably connected to an adjacent connecting hook.

[0013] Furthermore, each carrying mechanism is equipped with a conveying mechanism, which includes: The system includes a storage tray, a belt for conveying items, guide wheels, and a drive box that provides lifting power. The storage tray is rotatably connected to an adjacent fixed rod. One end of the belt is fixedly wound around the storage tray. Multiple connection holes are provided on the outer wall of the belt. A U-shaped seat is rotatably connected to the axle of the guide wheel, and the U-shaped seat is fixedly connected to the workbench. An automatic winch is installed inside the drive box. The other end of the belt passes around the guide wheel and is fixedly connected to the automatic winch.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. By using a scissor lift to control the height of the workbench, and by using two load-bearing mechanisms to increase the grounding point of the base, the stability of the base is improved. Then, two support mechanisms are deployed to provide lateral support for the workbench, thereby improving the stability of the workbench and thus improving the safety during the use of the workbench. In addition, during use, items can be transferred from the ground to the workbench using a conveyor mechanism, which makes it convenient for users to use.

[0015] 2. By rotating multiple rotating plates to a straight state, and then rotating the abutment plate to contact the adjacent rotating plates to keep the rotating plates straight, the hook is then hooked onto the connecting hook to keep the flat plate surface formed by the multiple rotating plates fixed, and one end of the flat plate surface formed by the multiple rotating plates touches the ground, thereby increasing the grounding point of the base and improving the stability of the base. Then, the guide rope is connected to the adjacent hanging ring, and the protective net is fixed to the side of the workbench using the connector. After the workbench is raised to a suitable height, the protective net can be unfolded to cover the space below and block falling objects, improving the safety of the ground staff. Then, the reel is rotated to tighten the guide rope, and then the screw is screwed in to contact the reel for fixation. Finally, the pull rope is pulled to unfold the scissor frame. 3. During the unfolding process of the scissor frame, pulling the pull belt causes the pull belt to rotate the adjacent central shaft, which in turn causes the central shaft to rotate the adjacent cylinders to align with each other. Then, the air pump is started to allow compressed air to enter the cylinders and push the adjacent piston rods to move, so that the piston rods are engaged with the inserts on the adjacent cylinders, thereby interlocking multiple cylinders. Furthermore, the clamps on the cylinders located at both ends can be inserted into the adjacent inserts, and the inserts are engaged with the adjacent clamps, thus supporting multiple cylinders between the worktable and the load-bearing mechanism, providing lateral support to the worktable. 4. After the items are tied to the connecting holes on the belt with ropes, the automatic winch is started, which can wind up the belt and transport the items to the guide wheel. Then, the workers on the workbench can manually remove the items, which facilitates the transportation of items from the ground to the workbench and makes it convenient for users. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the positional relationship between the bearing mechanism, the supporting mechanism, and the conveying mechanism in this invention; Figure 3 This is a schematic diagram of the load-bearing mechanism structure in this invention; Figure 4 This is a schematic diagram of the support mechanism structure in this invention; Figure 5 This is the present invention. Figure 4 Enlarged view of a portion of point A in the middle; Figure 6 This is an exploded view of the support mechanism structure in this invention; Figure 7 This is a schematic diagram of the scissor frame structure in this invention; Figure 8 This is a schematic diagram of the cross-sectional structure of the cylinder in this invention.

[0017] In the diagram: 100, base; 101, connecting hook; 110, workbench; 200, bearing mechanism; 210, rotating plate; 220, connecting plate; 221, abutment plate; 230, guide rod; 231, connecting rope; 240, rotating roller; 241, protective net; 300, support mechanism; 301, insert; 302, clamp; 310, fixing rod; 320, connecting cylinder; 321, take-up reel; 322, guide rope; 330, slide rail; 331, hanging ring; 340, scissor frame; 341, central shaft; 342, clamping plate; 343, positioning rope; 344, pull rope; 350, pull belt; 360, cylinder body; 361, piston rod; 362, insertion port; 400, conveying mechanism; 410, storage tray; 420, belt body; 430, guide wheel; 440, drive box. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0019] The following detailed description is exemplary and intended to provide further detailed explanation of the invention. Unless otherwise specified, all technical terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention.

[0020] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. It should be noted in the description of this invention that, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1-8 In this embodiment of the invention, a platform lifting vehicle with protective function includes a base 100, and a workbench 110 is arranged above the base 100. Multiple scissor lift frames are arranged between the base 100 and the workbench 110, including: Two load-bearing mechanisms 200 for providing ground stability and two support mechanisms 300 for providing lateral auxiliary support to the raised work platform 110 are provided. The two load-bearing mechanisms 200 are located on opposite sides of the base 100. The two support mechanisms 300 are fixedly connected to the two load-bearing mechanisms 200. Each support mechanism 300 includes a fixed rod 310, and both ends of the fixed rod 310 are fixedly connected to support plates. Each support plate is fixedly connected to the adjacent load-bearing mechanism 200. Two connecting cylinders 320 are slidably sleeved on the fixed rod 310. A winding reel 321 is rotatably sleeved on the outer wall of each connecting cylinder 320. Each winding reel 321 is fixedly wound with a guide rope 322. A scissor frame 340 is provided between the two guide ropes 322. Screw holes are provided at both ends of each connecting cylinder 320.

[0024] Specifically, the base 100, workbench 110, and multiple hydraulic scissor lift frames in this application constitute an existing platform lifting vehicle. During operation, the workbench 110 is raised to a suitable height under the action of the scissor lift frames, and then personnel perform operations on the workbench 110. This application increases the ground contact area of ​​the base 100 by adding load-bearing mechanisms 200 on both sides of the base 100, and then uses two support mechanisms 300 to provide lateral auxiliary support for the workbench 110, thereby improving the load-bearing capacity of the workbench 110 and improving the safety of the workbench 110 during use. In this embodiment, after the support mechanism 200 is unfolded, the two guide ropes 322 on the support mechanism 300 can be connected to the workbench 110. After the workbench 110 is raised to a suitable height, the guide ropes 322 are tightened by rotating the take-up reel 321. Then, the screws are screwed into the threaded holes to abut against the adjacent take-up reels 321 and fix them so that the guide ropes 322 are no longer released. Then, the scissor frame 340 is unfolded so that the scissor frame 340 is tilted between the workbench 110 and the support mechanism 200. In this way, the scissor frame 340 provides lateral auxiliary support to the workbench 110 and improves the stability of the workbench 110.

[0025] Example 1 like Figures 4-7 As shown, in this embodiment, the workbench 110 has two slide rails 330 fixedly connected to each other on both sides. Each slide rail 330 has a slider slidably engaged inside, and each slider is fixedly connected to a hanging ring 331. The scissor frame 340 includes multiple cross units connected in sequence. Each cross unit includes two rods. The two rods in each cross unit are rotatably connected through a central shaft 341. Two positioning ropes 343 are provided between two adjacent cross units. Each cross unit at both ends is equipped with two clamping plates 342. Each clamping plate 342 has a circular hole at one end. The circular holes on the two clamping plates 342 at one end are fixedly sleeved with two guide ropes 322, and the circular holes on the two clamping plates 342 at the other end are slidably sleeved with two guide ropes 322.

[0026] In this embodiment, when the guide rope 322 is connected to the workbench 110, the guide rope 322 can be tied to the adjacent hanging ring 331 to facilitate the movement of the guide rope 322 in coordination with the unfolding of the scissor frame 340. The scissor frame 340 is composed of multiple cross units. The ends of two rods on one cross unit are rotatably hinged to the ends of two rods on the adjacent cross unit. The positioning rope 343 is located at the hinge point of the ends of the rods on the two adjacent cross units, and the positioning rope 343 passes around the guide rope 322. Thus, when the scissor frame 340 is unfolded, the hinge point of the cross unit on the scissor frame 340 can be moved on the guide rope 322 by the positioning rope 343. When the scissor frame 340 is displayed, one end is fixed on the guide rope 322 by the clamping plate 342 and does not move, while the clamping plate 342 at the other end can move along the guide rope 322.

[0027] like Figures 6-8 As shown, in this embodiment, a cylinder 360 is fixedly connected to one end of any central shaft 341. Each cylinder 360 has an open end. A piston rod 361 is slidably sleeved onto one end of each cylinder 360. An insertion port 362 is opened at the other end of each cylinder 360. Each piston rod 361 is movably engaged inside an adjacent insertion port 362. A guide tube is fixedly connected to each cylinder 360, and each guide tube communicates with the interior of an adjacent cylinder 360. A scissor frame 340 is provided in conjunction with this. There is an air pump, and the air outlet of the air pump is connected to multiple conduits through a multi-port connector. A connecting hole is opened on the outer wall of any central shaft 341. The scissor frame 340 is equipped with a pull strap 350, and the pull strap 350 passes through multiple adjacent connecting holes in sequence. One end of the pull strap 350 is fixedly sleeved with the connecting hole located at one end. The two adjacent cylinders 360 are arranged in opposite directions. A pull rope 344 is fixedly connected between the two clamping plates 342 located at the other end of any scissor frame 340.

[0028] In practice, after the scissor frame 340 is deployed, the cylinder 360 can rotate naturally. At this time, the pull strap 350 can be pulled to taut it, causing the taut pull strap 350 to drive the adjacent central shaft 341 to rotate, thereby aligning multiple cylinders 360 with each other. Then, compressed air is injected into the cylinder 360 by an air pump, causing the piston rod 361 inside the cylinder 360 to be moved by the gas and inserted into the insertion port 362 on the adjacent cylinder 360 for fixation. This results in multiple cylinders 360 and piston rods 361 being interlocked and supported. Between the workbench 110 and the supporting mechanism 200, the workbench 110 is mainly supported laterally, while the scissor frame 340 is connected to multiple cylinders 360, providing auxiliary support for the multiple cylinders 360 and the workbench 110. The air pump is equipped with a valve to control the opening and closing of the conduit. The pull rope 344 is easy to pull to drive the scissor frame 340 to unfold. The pull rope 344 and the pull belt 350 can be pulled manually or connected to existing automatic winding equipment to pull the pull rope 344 and the pull belt 350, which is convenient for users.

[0029] like Figures 2-4 As shown, in this embodiment, the supporting mechanism 200 includes: Multiple rotating plates 210 and multiple connecting plates 220 are arranged horizontally in sequence. One side of the rotating plate 210 at one end is rotatably connected to the base 100, and the rotating plates 210 at the other end are fixedly connected to two support plates on adjacent fixed rods 310. Multiple abutment plates 221 are rotatably connected to the opposite sides of the multiple connecting plates 220. Each connecting plate 220 is rotatably connected to two adjacent rotating plates 210. U-shaped plates are fixedly connected to the top surfaces of the rotating plates 210 at the opposite ends of the worktable 110 and the two bearing mechanisms 200. Insert cylinders are rotatably connected between the two arms of the U-shaped plates on the opposite sides of the worktable 110. 301, the two arms of the U-shaped plate located on the two rotating plates 210 are rotatably connected with clamps 302. The rotating plate 210 at the other end of any bearing mechanism 200 is rotatably connected with a rotating roller 240. The outer wall of any rotating roller 240 is fixedly wrapped with a protective net 241. The rotating plate 210 at the other end of any bearing mechanism 200 is fixedly connected with a guide rod 230. The outer wall of any guide rod 230 is fixedly connected with multiple connecting ropes 231. One end of any connecting rope 231 is fixedly connected with a hook. The base 100 is fixedly connected with multiple connecting hooks 101 on both sides. Each hook is movably connected to the adjacent connecting hook 101.

[0030] In practical implementation, when using the bearing mechanism 200, multiple rotating plates 210 can be rotated to a parallel state, and then multiple abutment plates 221 can be rotated to a state perpendicular to the connecting plate 220. This allows the abutment plates 221 to limit the multiple rotating plates 210, keeping them parallel to each other. Then, the hook on the connecting rope 231 is hooked onto the connecting hook 101, causing the rotating plate 210 at the other end of the bearing mechanism 200 to touch the ground and remain stationary by the connecting rope 231 hooking onto the connecting hook 101. This keeps the multiple rotating plates 210 aligned with the base 100. Provides auxiliary support to improve the stability of the base 100. Then, after the workbench 110 is raised and lowered, the scissor frame 340 is unfolded, allowing the insertion port 362 on the insertion cylinder 301 at the other end of the scissor frame 340 to insert into the adjacent clamp 302. Simultaneously, the piston rod 361 on the insertion cylinder 301 at one end of the scissor frame 340 is automatically inserted into the adjacent insertion cylinder 301 due to compressed air injection. The alignment of the piston rod 361 and insertion cylinder 301, as well as the insertion port 362 and clamp 302, can be manually performed by ground personnel and personnel on the workbench 110. Before the workbench 110 rises, screw holes are provided on the side of the workbench 110. Screws can be passed through the safety net 241 and screwed into the screw holes to fix the safety net 241 to the side of the workbench 110. After the workbench 110 rises, the safety net 241 can be naturally pulled out from the roller 240 to cover the sides below the workbench 110, thus blocking falling objects and causing them to slide down the inclined safety net 241. The roller 240 also has side plates at both ends, with threaded holes that can be made on the side plates. Screws can be screwed into the threaded holes to engage the roller 240 and maintain its position. When rotation stops, the roller shaft of the rotating roller 240 can be optionally connected to a motor. The motor is equipped with an electromagnetic brake. The rotation of the rotating roller 240 is controlled by starting and stopping the motor. After use, the multiple abutments 221 can be rotated to be parallel to the connecting plate 220. Then, the multiple rotating plates 210 can be rotated to fold the multiple rotating plates 210 together so that the plate surface of the rotating plates 210 faces the base 100. The abutments 221 are located in the gap between the connecting plate 220 and the adjacent rotating plates 210 without affecting the folding of the multiple rotating plates 210. The scissor frame 340 is located on the outermost rotating plate 210, which facilitates storage.

[0031] Example 2 Based on Embodiment 1, small items can be transferred from the ground to the workbench 110 by using the conveyor mechanism 400, making it convenient for users.

[0032] like Figure 2 As shown, in this embodiment, each carrying mechanism 200 is equipped with a conveying mechanism 400, which includes: The system includes a storage tray 410, a belt 420 for conveying items, a guide wheel 430, and a drive box 440 for providing lifting power. The storage tray 410 is rotatably sleeved with the adjacent fixed rod 310. One end of the belt 420 is fixedly wound around the storage tray 410. Multiple connection holes are provided on the outer wall of the belt 420. The guide wheel 430 is rotatably connected to a U-shaped seat, and the U-shaped seat is fixedly connected to the worktable 110. An automatic winch is provided inside the drive box 440. The other end of the belt 420 passes around the guide wheel 430 and is fixedly connected to the automatic winch.

[0033] In practice, the belt 420 has multiple connection holes. Ground staff can use ropes to thread small items through the connection holes and tie them to the items. Then, the automatic winch is started to wind up the belt 420, causing the items on the belt 420 to move in the direction of the guide wheel 430 and to the vicinity of the workbench 110. Then, the staff on the workbench 110 can manually remove the items from the belt 420 to complete the item transfer, which is convenient for users.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. A platform lift with protective functions, characterized in that, Includes a base (100), and a workbench (110) is provided above the base (100). Multiple scissor lifts are provided between the base (100) and the workbench (110). Also includes: Two load-bearing mechanisms (200) for providing ground stability and two support mechanisms (300) for providing lateral auxiliary support to the raised work platform (110). The two load-bearing mechanisms (200) are located on opposite sides of the base (100). The two support mechanisms (300) are fixedly connected to the two load-bearing mechanisms (200). Each support mechanism (300) includes a fixed rod (310), and both ends of the fixed rod (310) are fixedly connected to support plates. Each support plate is fixedly connected to the adjacent load-bearing mechanism (200). Two connecting cylinders (320) are slidably sleeved on the fixed rod (310). A take-up reel (321) is rotatably sleeved on the outer wall of each connecting cylinder (320). Each take-up reel (321) is fixedly wound with a guide rope (322). A scissor frame (340) is provided between the two guide ropes (322). Screw holes are opened at both ends of each connecting cylinder (320).

2. The platform lifting vehicle according to claim 1, characterized in that, The workbench (110) has two slide rails (330) fixedly connected to each other on both sides. Each slide rail (330) has a slider that is slidably engaged inside it, and each slider has a hanging ring (331) fixedly connected to it.

3. The platform lifting vehicle according to claim 2, characterized in that, The scissor frame (340) includes multiple interconnected cross units. Each cross unit includes two rods. The two rods in each cross unit are rotatably connected by a central shaft (341). Two positioning ropes (343) are provided between two adjacent cross units. Each cross unit at both ends is equipped with two clamping plates (342). Each clamping plate (342) has a circular hole at one end. The circular holes on the two clamping plates (342) at one end are fixedly connected to the two guide ropes (322), and the circular holes on the two clamping plates (342) at the other end are slidably connected to the two guide ropes (322).

4. The platform lifting vehicle according to claim 3, characterized in that, Each central shaft (341) is fixedly connected to a cylinder (360) at one end. Each cylinder (360) has an open structure at one end. Each cylinder (360) is slidably sleeved with a piston rod (361) at one end. Each cylinder (360) has an insertion port (362) at the other end. Each piston rod (361) is movably engaged inside the adjacent insertion port (362). Each cylinder (360) is fixedly connected to a conduit. Each conduit is connected to the interior of the adjacent cylinder (360). The scissor frame (340) is equipped with an air pump, and the air outlet of the air pump is connected to multiple conduits through a multi-port connector.

5. The platform lifting vehicle according to claim 4, characterized in that, A connecting hole is provided on the outer wall of any central shaft (341). The scissor frame (340) is equipped with a pull strap (350), and the pull strap (350) passes through multiple adjacent connecting holes in sequence. One end of the pull strap (350) is fixedly connected to the connecting hole located at one end. The two adjacent cylinders (360) are arranged in opposite directions.

6. The platform lifting vehicle according to claim 5, characterized in that, A pull rope (344) is fixedly connected between the two clamps (342) at the other end of any scissor frame (340).

7. The platform lifting vehicle according to claim 6, characterized in that, The bearing mechanism (200) includes: Multiple rotating plates (210) and multiple connecting plates (220) are arranged horizontally in sequence. One side of the rotating plate (210) at one end is rotatably connected to the base (100), and the rotating plate (210) at the other end is fixedly connected to two support plates on the adjacent fixed rod (310). Multiple connecting plates (220) are rotatably connected to multiple abutment plates (221) on opposite sides. Any connecting plate (220) is rotatably connected to two adjacent rotating plates (210).

8. The platform lifting vehicle according to claim 7, characterized in that, U-shaped plates are fixedly connected to the top surfaces of the rotating plates (210) located at the other end of the two bearing mechanisms (200) on opposite sides of the workbench (110). Inserts (301) are rotatably connected between the two arms of the U-shaped plates located on opposite sides of the workbench (110). Clamps (302) are rotatably connected between the two arms of the U-shaped plates located on the two rotating plates (210). A rotating roller (240) is rotatably connected to the rotating plate (210) located at the other end of any bearing mechanism (200). A protective net (241) is fixedly wrapped around the outer wall of any rotating roller (240).

9. The platform lifting vehicle according to claim 8, characterized in that, In any of the bearing mechanisms (200), the rotating plate (210) located at the other end is fixedly connected to a guide rod (230), and multiple connecting ropes (231) are fixedly connected to the outer wall of any guide rod (230). A hook is fixedly connected to one end of any connecting rope (231). Multiple connecting hooks (101) are fixedly connected to the opposite sides of the base (100), and any hook is movably connected to the adjacent connecting hook (101).

10. The platform lifting vehicle according to claim 9, characterized in that, Each carrying mechanism (200) is equipped with a conveying mechanism (400), the conveying mechanism (400) comprising: The system includes a storage tray (410), a belt (420) for conveying items, a guide wheel (430), and a drive box (440) for providing lifting power. The storage tray (410) is rotatably sleeved with an adjacent fixed rod (310). One end of the belt (420) is fixedly wound around the storage tray (410). The outer wall of the belt (420) has multiple connecting holes. The guide wheel (430) is rotatably connected to a U-shaped seat, and the U-shaped seat is fixedly connected to the workbench (110). An automatic winch is installed inside the drive box (440). The other end of the belt (420) passes around the guide wheel (430) and is fixedly connected to the automatic winch.

Images