Folding hydraulic lifting platform

Abstract

The invention relates to the field of hydraulic mechanical equipment, and discloses a folding type hydraulic lifting platform which is characterized in that a scissor type support is arranged above a movable vehicle body, rotating rods are rotationally connected to the middle and one side of the bottom of the scissor type support correspondingly, and rotating shafts are rotationally connected to the middles of the two rotating rods correspondingly; a hydraulic cylinder is arranged between the two rotating shafts, a lifting platform body is arranged at the top of the scissor type support, an L-shaped connecting rod is fixedly connected to the lower surface of the lifting platform body, a second sliding block is fixedly connected to one end of the L-shaped connecting rod, and a guide stand column is slidably connected to the outer wall of the second sliding block; a pushing assembly is arranged at the top of the guide stand column. The material pushing assembly comprises a lead screw, a threaded sleeve, a scissor type push rod and a push plate. Through meshing transmission of the spur rack and the gear and cooperation with telescopic linkage of the push plate driven by the lead screw, cooperative control over lifting action and material pushing is achieved, and the problem of material clamping stagnation caused by step-by-step operation of existing equipment is solved.

Description

Technical Field

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

[0002] With the continuous improvement of modern warehousing, logistics and production automation, hydraulic lifting platforms, as a key equipment commonly used for material handling and up and down transportation, are widely used in factories, warehouses and logistics centers. This type of equipment usually has functions such as lifting, moving and material transfer. Its core goal is to efficiently and stably complete the vertical transportation of objects in a limited space, thereby improving work efficiency and operational safety.

[0003] In existing hydraulic lifting platforms, in order to achieve the combined operation of platform lifting and material pushing, a split drive structure is usually adopted, that is, the lifting system and the material pushing system are controlled by independent drive units. Common forms of material pushing devices include screw drive, chain conveyor or cylinder propulsion, etc., which are coordinated with the platform lifting action through program timing to complete collaborative operation.

[0004] However, the existing technology has significant shortcomings. Since the lifting and pushing systems are independent of each other, it is often necessary to preset the action sequence and time interval. Once the control is not synchronized, it is very easy to cause the material to get stuck at the edge of the lifting platform body, affecting the conveying efficiency and even damaging the equipment. In addition, the timing coordination of the dual systems usually relies on PLC or logic circuit control, which increases the complexity of the system, makes maintenance difficult, and has limited response speed, making it difficult to adapt to high-frequency operation scenarios.

[0005] In summary, how to achieve synchronous linkage control between the pushing device and the lifting action of the lifting platform body to eliminate system timing errors, improve material transportation efficiency and reduce structural complexity is a key issue that needs to be urgently solved in the current field of hydraulic lifting equipment technology. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a foldable hydraulic lifting platform, which solves the problems of asynchronous movements, material jamming and low operating efficiency caused by the separation of the lifting and pushing systems in the prior hydraulic lifting platforms.

[0007] To achieve the above object, the present invention is realized through the following technical solutions: a folding hydraulic lifting platform, comprising a scissor support arranged above the moving vehicle body, rotating rods are rotatably connected to the middle and one side of the bottom of the scissor support, rotating shafts are rotatably connected to the middle of the two rotating rods, a hydraulic cylinder is arranged between the two rotating shafts, a lifting platform body is arranged at the top of the scissor support, an L-shaped connecting rod is fixedly connected to the lower surface of the lifting platform body, a second slider is fixedly connected to one end of the L-shaped connecting rod, a guide column is slidably connected to the outer wall of the second slider, and a pushing component is arranged at the top of the guide column;

[0008] The pushing component includes a lead screw, a threaded sleeve, a scissor push rod and a push plate. The lead screw is rotatably connected to the top of the guide column, the threaded sleeve is internally threaded and connected to the outer wall of the lead screw, one end of the scissor push rod is connected to the threaded sleeve through a driving rod, a push plate is arranged at the other end of the scissor push rod, coupling shafts are fixedly connected to both ends of the lead screw, a gear is fixedly connected to one end of the coupling shaft, the other end of the coupling shaft is rotatably connected to a fixing plate, a straight rack is slidably connected inside the guide column, and the straight rack meshes with the gear.

[0009] Preferably, a guide rail is fixedly connected to the upper surface of the lifting platform body, a first slider is slidably connected to the outer wall of the guide rail, a placing platform is fixedly connected to the upper surface of the first slider, and a limiting component is arranged at one end of the placing platform.

[0010] Preferably, the limiting component includes a threaded rod and a rubber limiting pad. The threaded rod is threadedly connected to one end of the placing platform, and the rubber limiting pad is fixedly connected to the bottom of the threaded rod.

[0011] Preferably, brake universal wheels are arranged at the bottom of the moving vehicle body, and a hand push frame is fixedly connected to one side of the outer wall of the moving vehicle body.

[0012] Preferably, auxiliary wheels are arranged at the top and bottom of the scissor support, and the auxiliary wheels are slidably connected to the inner wall of the moving vehicle body and the bottom of the lifting platform body.

[0013] Preferably, a reinforcing rod is fixedly connected to one side of the outer wall of the guide column, and both ends of the reinforcing rod are fixedly connected to the outer wall of the hand push frame.

[0014] Preferably, the bottom of the straight rack is fixedly connected to the upper surface of the second slider, and the internal thread of the threaded sleeve is in line with the external thread of the coupling shaft.

[0015] Preferably, the output end of the hydraulic cylinder is fixedly connected to the rotating shaft close to the middle of the scissor support, and the bottom of the hydraulic cylinder is fixedly connected to the rotating shaft close to the moving vehicle body.

[0016] Preferably, one end of the bottom of the mobile vehicle body is fixedly connected with a fuel tank, and the output end of the fuel tank is connected to the liquid inlet of the hydraulic cylinder through a fuel delivery pipe and a control valve group.

[0017] Preferably, one end of the mobile vehicle body is fixedly connected with a power source, and the power source is electrically connected to the hydraulic cylinder and the control valve group respectively.

[0018] The present invention provides a folding hydraulic lifting platform, which has the following beneficial effects:

[0019] 1. Through the meshing transmission of the straight rack and the gear, and in cooperation with the telescopic linkage of the push plate driven by the lead screw, the present invention realizes the coordinated control of the lifting action and the material pushing. Compared with the traditional split drive structure, the time sequence error between the hydraulic lifting and the material pushing mechanism is eliminated, and the operation efficiency is increased by more than 40%, solving the problem of material jamming caused by step-by-step operation of the existing equipment.

[0020] 2. By adopting the sliding fit of the guide rail and the slider one on the placing platform and combining with the screw rod spinning type limiting component, the operator can adjust the contact pressure between the rubber limiting pad and the lifting platform body in real time. This design can prevent the accidental sliding of the material during transportation.

[0021] 3. Through the two-way sliding mechanism of the rotating shaft and the auxiliary wheel, and in cooperation with the folding drive of the hydraulic cylinder, the present invention can reduce the storage height of the equipment according to different requirements. Combined with the mobile vehicle body with brake universal wheels, it can freely turn in the narrow warehouse passage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a perspective view of the present invention;

[0023] Figure 2 is an exploded view of the present invention;

[0024] Figure 3 is a partial structural schematic diagram of the slider two of the present invention;

[0025] Figure 4 is Figure 3 an enlarged view of A;

[0026] Figure 5 is a partial structural schematic diagram of the push plate of the present invention;

[0027] Figure 6 is a partial structural schematic diagram of the scissors support of the present invention;

[0028] Figure 7 is a partial structural schematic diagram of the hydraulic cylinder of the present invention.

[0029] Among them, 1. Mobile vehicle body; 2. Brake universal wheel; 3. Scissor support; 4. Rotating rod; 5. Hydraulic cylinder; 6. Auxiliary wheel; 7. Rotating shaft; 8. Lifting platform body; 9. Guide rail; 10. Slide block one; 11. Placing platform; 12. Threaded rod; 13. Rubber limit pad; 14. L-shaped connecting rod; 15. Guide post; 16. Reinforcing rod; 17. Slide block two; 18. Straight rack; 19. Gear; 20. Lead screw; 21. Fixed plate; 22. Threaded sleeve; 23. Coupling shaft; 24. Driving rod; 25. Scissor push rod; 26. Push plate; 27. Fuel tank; 28. Power supply; 29. Control valve group. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Embodiment:

[0032] Please refer to the attached Figure 1 - attached Figure 7 , the embodiment of the present invention provides a folding hydraulic lifting platform, including a mobile vehicle body 1. A scissor support 3 is arranged above the mobile vehicle body 1. Rotating rods 4 are rotatably connected to the middle and one side of the bottom of the scissor support 3. Rotating shafts 7 are rotatably connected to the middle of the two rotating rods 4. A hydraulic cylinder 5 is arranged between the two rotating shafts 7. A lifting platform body 8 is arranged at the top of the scissor support 3. An L-shaped connecting rod 14 is fixedly connected to the lower surface of the lifting platform body 8. One end of the L-shaped connecting rod 14 is fixedly connected to a slide block two 17. The outer wall of the slide block two 17 is slidably connected to a guide post 15. A material pushing assembly is arranged at the top of the guide post 15;

[0033] The material pushing assembly includes a lead screw 20, a threaded sleeve 22, a scissor push rod 25 and a push plate 26. The lead screw 20 is rotatably connected to the top of the guide post 15. The threaded sleeve 22 is internally threaded to the outer wall of the lead screw 20. One end of the scissor push rod 25 is connected to the threaded sleeve 22 through a driving rod 24. A push plate 26 is arranged at the other end of the scissor push rod 25. Coupling shafts 23 are fixedly connected to both ends of the lead screw 20. A gear 19 is fixedly connected to one end of the coupling shaft 23. The other end of the coupling shaft 23 is rotatably connected to a fixed plate 21. A straight rack 18 is slidably connected inside the guide post 15. The straight rack 18 meshes with the gear 19.

[0034] Specifically, the lifting of the scissor support 3 is driven by the hydraulic cylinder 5, and the lifting platform body 8 can be raised or lowered accordingly. The hydraulic system can provide precise control, enabling the platform to smoothly transition between different heights. The lead screw 20 rotates to drive the threaded sleeve 22 to move along its thread, thereby pushing the scissor push rod 25. The scissor push rod 25 is connected to the push plate 26. When the push rod is driven, the push plate 26 pushes the material along the set track. By meshing the gear 19 with the straight rack 18, the coordinated operation between the lead screw 20 and the material pushing assembly is ensured, and the progress and force of material pushing can be accurately controlled. The guiding upright 15 and the slider two 17 ensure the smooth movement of the material pushing assembly, making the material pushing process more precise and without deviation.

[0035] Furthermore, the coupling shaft 23 is connected to both ends of the lead screw 20 and provides rotational power through the gear 19 transmission system to drive the operation of the entire material pushing assembly. By combining the gear 19 with the straight rack 18, the synchronous operation of the material pushing device in the entire system can be ensured, achieving accurate pushing and stable material handling.

[0036] The upper surface of the lifting platform body 8 is fixedly connected with a guide rail 9. The outer wall of the guide rail 9 is slidably connected with a slider one 10. The upper surface of the slider one 10 is fixedly connected with a storage platform 11, and a limiting component is arranged at one end of the storage platform 11.

[0037] Specifically, by arranging the guide rail 9 and the slider one 10 on the lifting platform body 8, not only the stability of the platform is enhanced, but also a more flexible item storage function can be provided. The storage platform 11 can be horizontally moved on the platform according to actual needs, thereby improving the versatility and applicability of the platform, and is particularly suitable for occasions where the storage position of items needs to be frequently adjusted.

[0038] In one embodiment, the hydraulic cylinder 5 controls the lifting of the scissor support 3, causing the lifting platform body 8 to rise or fall accordingly. The guide rail 9 is fixed on the upper surface of the lifting platform body 8 to provide a sliding track for the slider one 10. The slider one 10 is slidably connected with the guide rail 9, enabling the storage platform 11 to be horizontally moved on the guide rail 9. When the position of the storage platform 11 needs to be adjusted, the operator only needs to gently push the slider one 10, and the storage platform 11 can be smoothly moved along the guide rail 9. The limiting component is used to control the position of the storage platform 11 to prevent the platform from sliding beyond the predetermined range. Through the effective action of the limiting component, it is ensured that the storage platform 11 is always in a safe and stable position during the lifting process, preventing items from falling or the platform from moving improperly. When the lifting platform body 8 is at different heights, the storage platform 11 can be horizontally moved according to needs for the storage, retrieval, or sorting of items. At the same time, the limiting component ensures the safe position of the storage platform 11, avoiding safety problems caused by sliding too far or too close.

[0039] The limiting component includes a threaded rod 12 and a rubber limiting pad 13. The threaded rod 12 is threadedly connected to one end of the storage platform 11, and the rubber limiting pad 13 is fixedly connected to the bottom of the threaded rod 12.

[0040] Specifically, the setting of the rubber limiting pad 13 can provide a certain buffering effect, avoiding hard collisions between the storage platform 11 and the limiting position, reducing damage to the platform and items, increasing durability and safety during use. The combination of the threaded rod 12 and the rubber limiting pad 13 enables the limiting function to adapt to items of different weights and sizes. When the item is heavy, the rubber limiting pad 13 can effectively reduce the impact caused by the collision on the platform and the item, ensuring adaptability and stability in various working environments.

[0041] In one embodiment, the threaded rod 12 is fixedly connected to one end of the storage platform 11 by a threaded connection. When it is necessary to adjust the position of the storage platform 11, the operator only needs to rotate the threaded rod 12 to adjust its position. By rotating the threaded rod 12, the limiting position of the storage platform 11 can be precisely set to prevent it from sliding beyond the track range. When the storage platform 11 slides to the predetermined position, the rubber limiting pad 13 on the threaded rod 12 will contact the limiting component to prevent the platform from continuing to slide. At this time, the limiting component ensures that the platform stops at the appropriate position, avoiding tilting or exceeding the track due to excessive sliding.

[0042] Brake universal wheels 2 are provided at the bottom of the moving vehicle body 1, and a hand push frame is fixedly connected to one side of the outer wall of the moving vehicle body 1; auxiliary wheels 6 are provided at the top and bottom of the scissor-type bracket 3, and the auxiliary wheels 6 are slidably connected to the inner wall of the moving vehicle body 1 and the bottom of the lifting platform body 8.

[0043] Specifically, the brake universal wheels 2 provided at the bottom of the moving vehicle body 1 enable the platform to move flexibly on various sites. The design of the brake universal wheels 2 not only ensures the smooth movement of the platform but also can fix the platform when needed to avoid accidental movement of the platform during use. The auxiliary wheels 6 provided at the top and bottom of the scissor-type bracket 3 can provide additional support to ensure that the lifting platform body 8 remains stable during the lifting process and reduce the instability caused by the tilting of the platform during lifting. The auxiliary wheels 6 can share a certain load during lifting, helping to reduce the stress concentration of the platform structure and improve the overall stability and safety. Through the reasonable distribution of the design of the auxiliary wheels 6 and the brake universal wheels 2, the friction force of each part of the equipment during movement and lifting is reduced, thereby reducing equipment wear and increasing the service life of the platform.

[0044] In one embodiment, the braking swivel wheel 2 enables the moving vehicle body 1 to rotate and move freely. When the platform needs to be moved, the operator can simply give a gentle push to make the platform move in the desired direction. The braking swivel wheel 2 can effectively fix the platform after the platform is positioned, preventing the platform from shifting due to external forces and ensuring operation safety. The auxiliary wheels 6 at the top and bottom of the scissor support 3 can provide additional support during the lifting process, ensuring that the lifting platform body 8 does not tilt or sway during lifting. The auxiliary wheels 6 are slidably connected to the inner wall of the moving vehicle body 1 and the bottom of the lifting platform body 8, effectively alleviating the vibration and load pressure during the platform lifting process. By connecting with the inner wall of the moving vehicle body 1 and the bottom of the lifting platform body 8, the auxiliary wheels 6 can evenly distribute the gravity during the platform lifting, ensuring that the platform always remains balanced and avoiding structural damage caused by imbalance.

[0045] On one side of the outer wall of the guiding column 15, a reinforcing rod 16 is fixedly connected. Both ends of the reinforcing rod 16 are fixedly connected to the outer wall of the hand push frame; the bottom of the straight rack 18 is fixedly connected to the upper surface of the second slider 17, and the internal thread of the threaded sleeve 22 is in line with the external thread of the connecting shaft 23; the output end of the hydraulic cylinder 5 is fixedly connected to the rotating shaft 7 near the middle of the scissor support 3, and the bottom of the hydraulic cylinder 5 is fixedly connected to the rotating shaft 7 near the moving vehicle body 1.

[0046] Specifically, the combination of the straight rack 18 and the second slider 17 can provide stable transmission, ensuring the smooth movement of the slider during the material pushing and lifting processes. The connection method of the straight rack 18 and the second slider 17 effectively improves the smoothness and accuracy of the platform during the lifting process, reducing the deviation caused by friction or error. The cooperation between the threaded sleeve 22 and the external thread of the connecting shaft 23 makes the transmission system more compact, ensuring the efficiency and stability during the transmission process. This precise threaded connection avoids slippage or error during the transmission process, improving the overall performance and reliability of the system.

[0047] In one embodiment, one end of the reinforcing rod 16 is fixedly connected to the outer wall of the guiding column 15, and the other end is fixedly connected to the outer wall of the hand push frame. The reinforcing rod 16 effectively enhances the structural strength between the guiding column 15 and the hand push frame, making the structure not easily deformed or displaced during the platform lifting or moving process, providing stronger support and ensuring the stability of the platform. The cooperation between the straight rack 18 and the second slider 17 enables the second slider 17 to slide smoothly along the guide rail 9 when the platform is lifted or pushed. The straight rack 18 provides a fixed track to ensure the smooth movement of the second slider 17 and also ensures the accuracy of the material pushing component during operation. This design greatly improves the accuracy and efficiency of platform operation.

[0048] In one embodiment, one end of the bottom of the mobile vehicle body 1 is fixedly connected to an oil tank 27. The output end of the oil tank 27 is connected to the liquid inlet of the hydraulic cylinder 5 through an oil delivery pipe and a control valve group 29. One end of the mobile vehicle body 1 is fixedly connected to a power supply 28. The power supply 28 is electrically connected to the hydraulic cylinder 5 and the control valve group 29 respectively.

[0049] Specifically, the hydraulic pump 27 is fixed at the bottom of the mobile vehicle body 1, pressurizes the hydraulic oil and transports it to the control valve group 29 through an oil delivery pipe. The power supply 28 is electrically connected to the control valve group 29 and the hydraulic cylinder 5, so that the pressure oil enters the rodless cavity of the hydraulic cylinder 5 (pushes the piston rod to extend to realize the rise of the platform) or the rod cavity (retracts the piston rod and the platform descends). At the same time, the oil in the other cavity of the hydraulic cylinder 5 returns to the oil tank. When the valve group is in the middle position, the hydraulic cylinder 5 is locked to maintain the position of the platform.

[0050] Working principle: When using this hydraulic lifting platform, first, both ends of the hydraulic cylinder are respectively connected to the upper-middle position and the bottom of the scissor support through rotating shafts and rotating rods. When the hydraulic cylinder is started, it will push the rotating rod at the upper-middle position of the scissor support through its output end, driving one of the connecting rods of the scissor support to move upward. At this time, the bottom of this connecting rod will slide above the moving vehicle body through the auxiliary wheel, causing this connecting rod to gradually move from an inclined state to a vertical state. At this time, the movement of this connecting rod will also drive the center point of the scissor support to move upward, thus causing the scissor support to gradually extend. Furthermore, the top of the scissor support drives the lifting platform to rise and fall. In existing hydraulic cylinders, a one-way valve or a pilot-operated one-way valve is installed in the hydraulic system. When the hydraulic cylinder reaches the target height, the valve closes to prevent the hydraulic oil from flowing back, thereby locking the position of the piston rod. Even if the hydraulic pump stops working, the platform can still remain stable. This will not be elaborated here. It should be noted that this hydraulic cylinder is electrically started and used in conjunction with the power supply at the bottom of the moving vehicle body. An additional wire is reserved on one side of the hydraulic cylinder, which can be used in combination with an external drive source in special cases. The auxiliary wheel only plays a role in assisting the movement of one end of the scissor support to avoid damage caused by excessive friction. Then, the movement of the lifting platform body drives the L-shaped connecting rod to move up and down. When the L-shaped connecting rod moves upward, it will drive the slider two to slide on the outer wall of the guiding column, thereby driving the straight rack to slide inside the guiding column through the slider two. Then, through the meshing relationship between the straight rack and the gear, the gear drives the coupling shaft to rotate as the straight rack moves. Then, the coupling shaft drives the lead screw to rotate. Then, in cooperation with the thread relationship between the lead screw and the thread sleeve, the thread sleeve drives one end of the scissor push rod to move along the outer wall of the lead screw as the lead screw rotates, thereby driving the scissor push rod to extend. Finally, the extension of the scissor push rod drives the push plate to move forward, pushing the storage platform and the materials above forward. It should be noted during this process that a circular ring is provided above the storage platform. Mainly when the scissor push rod drives the push plate to push the object forward, if the object is small, it will cause the push plate to be unable to contact the object, resulting in the failure of the forward push. After setting the circular ring, when the push plate is pushed forward, only the circular ring needs to be pushed, and there is no need to consider the size and placement position of the object. In addition, since the L-shaped connecting rod itself is relatively short, it will not affect the effect of the scissor support retracting to the initial state. On the contrary, it can also provide support for the lifting platform in the retracted state to prevent it from being damaged by pressure. Then, the movement of the storage platform will also drive the slider one to slide on the outer wall of the guide rail, thereby realizing the automatic advancement of the materials. In addition, the threaded rod can be driven to make the rubber limit pad fit with the lifting platform body to achieve the fixed limit of the storage platform and prevent it from moving randomly. Finally, the device can also be moved to the designated position for use through the brake universal wheels at the bottom of the moving vehicle body, which is convenient and fast.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Folding hydraulic lifting platform, comprising a mobile vehicle body (1), characterized in that: Above the moving vehicle body (1), a scissor bracket (3) is provided. The middle part and one side of the bottom of the scissor bracket (3) are both rotatably connected with a rotating rod (4). The middle parts of the two rotating rods (4) are both rotatably connected with a rotating shaft (7). A hydraulic cylinder (5) is provided between the two rotating shafts (7). The top of the scissor bracket (3) is provided with a lifting platform body (8). The lower surface of the lifting platform body (8) is fixedly connected with an L-shaped connecting rod (14). One end of the L-shaped connecting rod (14) is fixedly connected with a second slider (17). The outer wall of the second slider (17) is slidably connected with a guiding upright column (15). A material pushing assembly is arranged at the top of the guiding upright column (15). The material pushing assembly includes a lead screw (20), a threaded sleeve (22), a scissor push rod (25) and a push plate (26). The lead screw (20) is rotatably connected to the top of the guiding upright column (15). The threaded sleeve (22) is internally threaded and connected to the outer wall of the lead screw (20). One end of the scissor push rod (25) is connected with the threaded sleeve (22) through a driving rod (24). The other end of the scissor push rod (25) is provided with a push plate (26). Both ends of the lead screw (20) are fixedly connected with a coupling shaft (23). One end of the coupling shaft (23) is fixedly connected with a gear (19). The other end of the coupling shaft (23) is rotatably connected with a fixing plate (21). A straight rack (18) is slidably connected inside the guiding upright column (15). The straight rack (18) is meshed with the gear (19).

2. The foldable hydraulic lifting platform according to claim 1, wherein: The upper surface of the lifting platform body (8) is fixedly connected with a guide rail (9). The outer wall of the guide rail (9) is slidably connected with a first slider (10). The upper surface of the first slider (10) is fixedly connected with a storage platform (11). A limiting assembly is arranged at one end of the storage platform (11).

3. The folding hydraulic lifting platform according to claim 2, wherein: The limiting assembly includes a threaded rod (12) and a rubber limiting pad (13). The threaded rod (12) is threadedly connected to one end of the storage platform (11). The rubber limiting pad (13) is fixedly connected to the bottom of the threaded rod (12).

4. The folding hydraulic lifting platform according to claim 1, wherein: The bottom of the moving vehicle body (1) is provided with brake universal wheels (2). One side of the outer wall of the moving vehicle body (1) is fixedly connected with a hand push frame.

5. The folding hydraulic lifting platform according to claim 1, wherein: Auxiliary wheels (6) are arranged at the top and bottom of the scissor bracket (3). The auxiliary wheels (6) are slidably connected to the inner wall of the moving vehicle body (1) and the bottom of the lifting platform body (8).

6. The folding hydraulic lifting platform according to claim 1, characterized in that: One side of the outer wall of the guiding upright column (15) is fixedly connected with a reinforcing rod (16). Both ends of the reinforcing rod (16) are fixedly connected to the outer wall of the hand push frame.

7. The foldable hydraulic lifting platform according to claim 1, wherein: The bottom of the straight rack (18) is fixedly connected to the upper surface of the second slider (17). The internal thread of the threaded sleeve (22) is in line with the external thread of the coupling shaft (23).

8. The folding hydraulic lifting platform according to claim 1, wherein: The output end of the hydraulic cylinder (5) is fixedly connected with the rotating shaft (7) close to the middle part of the scissor bracket (3). The bottom of the hydraulic cylinder (5) is fixedly connected with the rotating shaft (7) close to the moving vehicle body (1).

9. The foldable hydraulic lifting platform according to claim 1, wherein: One end of the bottom of the mobile vehicle body (1) is fixedly connected with a fuel tank (27), and the output end of the fuel tank (27) is connected to the liquid inlet of the hydraulic cylinder (5) through an oil delivery pipe and a control valve group (29).

10. The foldable hydraulic lifting platform according to claim 1, wherein: One end of the mobile vehicle body (1) is fixedly connected with a power supply (28), and the power supply (28) is electrically connected to the hydraulic cylinder (5) and the control valve group (29) respectively.

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