A lifting device with a hydraulic mechanism

Abstract

This utility model discloses a lifting device with a hydraulic mechanism, including a base and a lifting frame. A first scissor lift is rotatably connected to both sides of the inner wall of the base. The other end of each first scissor lift is slidably connected to the lifting frame. A second scissor lift is rotatably connected to the first scissor lift, and one end of the second scissor lift is slidably connected to the base. According to one embodiment of this disclosure, by setting a support plate, a fixed rod, a slot, and a rotating plate, after the lifting frame reaches the lifting height, the operator can rotate the rotating plate and place it on the fixed rod, so that one end of the rotating plate is locked inside the slot. This allows the support plate and the rotating plate to support the first and second scissor lifts, thereby improving the support strength of the first and second scissor lifts for the lifting frame and the load on the lifting frame, improving support stability, reducing the workload of the hydraulic cylinder, extending the service life of the hydraulic cylinder, and preventing falls due to hydraulic cylinder failure.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and more specifically, to a lifting device with a hydraulic mechanism. Background Technology

[0002] Hydraulic lifting equipment is mainly used in industries such as machinery manufacturing, warehousing and logistics, and professional maintenance, especially in the equipment maintenance industry. Hydraulic lifting equipment can play a significant role, offering far greater safety than ordinary ladders, greatly reducing the labor intensity of workers climbing up and down, and conveniently transporting heavy equipment. For example, publication number CN210710545U discloses a hydraulic lifter including a platform, a first support rod, and a first telescopic rod. A first connecting rod is internally installed at one end of the platform, and springs are installed at both ends of the first connecting rod. A slide rail is provided at the bottom of the platform. The internal connection includes a slider, with the first support rod positioned on one side of the slider and welded to it. A connecting shaft runs through the first support rod, and a second support rod is positioned around the connecting shaft. The hydraulic lift features a retractable platform for easier placement of items, extending and retracting with changes in lift height for easier loading and unloading. The support rod is connected to a telescopic rod, allowing for convenient height adjustment. The triangular structure significantly improves stability and ease of use, facilitating height adjustment and lifting. The hydraulic telescopic mechanism further enhances stability and ease of operation.

[0003] However, existing technologies have some problems: when this hydraulic lift is in use, the first telescopic rod extends and retracts about the second telescopic rod, causing the second connecting rod to drive the rotating shaft, which in turn drives the support rod to rotate about the connecting shaft, so as to adjust the height of the equipment and achieve the lifting effect. However, this equipment only bears the weight through the first and second telescopic rods of the hydraulic press, and maintains the lifting state for a long time. This not only puts a large workload on the hydraulic press and reduces its service life, but also makes it easy for the hydraulic press to fall if it malfunctions, causing damage to the lifted object. Therefore, we propose a lifting device with a hydraulic mechanism. Utility Model Content

[0004] One objective of this invention is to provide a new technical solution for a lifting device with a hydraulic mechanism.

[0005] According to a first aspect of the present invention, a lifting device with a hydraulic mechanism is provided, comprising a base and a lifting frame. First scissor lifts are rotatably connected to both sides of the inner wall of the base. The other end of each first scissor lift is slidably connected to the lifting frame. A second scissor lift is rotatably connected to each first scissor lift. One end of each second scissor lift is slidably connected to the base, and the other end is rotatably connected to the lifting frame. A connecting rod is hinged between the two first scissor lifts. A hydraulic cylinder is rotatably connected to the base. The telescopic end of the hydraulic cylinder is rotatably connected to a first scissor lift located a distance away from it. A support plate is fixedly installed on the inner wall of the second scissor lift. A fixing rod is fixedly installed on the support plate, and a slot is provided on the fixing rod. A rotating plate is rotatably connected to the inner wall of the first scissor lift. The other end of the rotating plate is movably engaged in the slot. A crossbar located above the rotating plate is fixedly installed on the inner wall of the first scissor lift.

[0006] Optionally, a reinforcing rib is fixedly installed on the rotating plate, and the number of the reinforcing ribs is two, which are arranged symmetrically.

[0007] Optionally, the rotating plate is provided with elongated holes, which are evenly distributed on the surface of the rotating plate.

[0008] Optionally, a block is fixedly installed on the rotating plate, a threaded rod is rotatably connected to the block, and a hook block is fixedly sleeved on the outer surface of the threaded rod.

[0009] Optionally, a nut is threaded onto the outer surface of the threaded rod, and the nut abuts against the block.

[0010] Optionally, a reinforcing plate is fixedly installed on the surface of the support plate, and through holes are formed on the support plate, with the through holes evenly distributed on the support plate.

[0011] Optionally, a square plate is fixedly installed at the bottom of the support plate, and the other end of the square plate is fixedly connected to the second scissor lift.

[0012] Optionally, a roller is rotatably connected to the left side of the base, and a handle is fixedly installed on the right side of the base.

[0013] According to one embodiment of this disclosure, by setting a support plate, a fixed rod, a slot, and a rotating plate, after the lifting frame reaches the lifting height, the operator can rotate the rotating plate and place it on the fixed rod, so that one end of the rotating plate is locked inside the slot. This allows the support plate and the rotating plate to support the first and second scissor lifts, thereby improving the support strength of the first and second scissor lifts for the lifting frame and the heavy objects on the lifting frame, improving support stability, reducing the workload of the hydraulic cylinder, extending the service life of the hydraulic cylinder, and preventing hydraulic cylinder failures that could lead to a fall.

[0014] According to one embodiment of this disclosure, by setting up a block, a threaded rod, a hook block, and a nut, when it is not necessary to use a rotating plate to increase the support strength, the worker can rotate the rotating plate to drive the hook block to rotate, and then hook the hook block onto the crossbar, thereby retracting the rotating plate and preventing the rotating plate from affecting the normal descent of the lifting frame. After the worker hooks the hook block onto the crossbar, he can rotate the nut to tighten it, thereby limiting the threaded rod and the hook block, and thus ensuring the stability of the hook block hooked onto the crossbar.

[0015] According to one embodiment of this disclosure, by setting reinforcing ribs, elongated holes, reinforcing plates, through holes, and square plates, and by opening elongated holes on the rotating plate, the weight of the rotating plate can be reduced, thereby balancing the increased weight on the rotating plate after the reinforcing ribs are installed. This achieves increased structural strength of the rotating plate while avoiding excessive weight. The design of reinforcing plates and through holes can increase the structural strength of the support plate while maintaining lightweight. The design of square plates makes the installation of the support plate more stable, thereby further improving the load-bearing strength of the support plate.

[0016] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0018] Figure 1 This is a schematic diagram of the overall structure of a lifting device with a hydraulic mechanism in one embodiment;

[0019] Figure 2 This is a schematic diagram of the bottom structure of a lifting device with a hydraulic mechanism in one embodiment;

[0020] Figure 3 This is a schematic diagram of the installation structure of the support plate and the rotating plate of a lifting device with a hydraulic mechanism in one embodiment;

[0021] Figure 4 This is a schematic diagram of the structure of the rotary plate of a lifting device with a hydraulic mechanism in one embodiment;

[0022] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0023] The diagram shows the following: 1. Base; 2. Lifting frame; 3. First scissor lift; 4. Second scissor lift; 5. Hydraulic cylinder; 6. Connecting rod; 7. Support plate; 8. Fixing rod; 9. Slot; 10. Rotary plate; 11. Reinforcing rib; 12. Oblong hole; 13. Square block; 14. Threaded rod; 15. Hook block; 16. Nut; 17. Reinforcing plate; 18. Through hole; 19. Square plate; 20. Roller; 21. Handle; 22. Crossbar. Detailed Implementation

[0024] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0025] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0026] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0027] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0028] like Figures 1-5 As shown, a lifting device with a hydraulic mechanism includes a base 1 and a lifting frame 2. First scissor lifts 3 are rotatably connected to both sides of the inner wall of the base 1. The other end of each first scissor lift 3 is slidably connected to the lifting frame 2. A second scissor lift 4 is rotatably connected to each first scissor lift 3. One end of each second scissor lift 4 is slidably connected to the base 1, and the other end is rotatably connected to the lifting frame 2. A connecting rod 6 is hinged between the two first scissor lifts 3. A hydraulic cylinder 5 is rotatably connected to the base 1. The telescopic end of the hydraulic cylinder 5 is rotatably connected to the first scissor lift 3, which is far away from it. A support plate 7 is fixedly installed on the inner wall of the second scissor lift 4. A fixing rod 8 is fixedly installed on the support plate 7. A slot 9 is provided on the fixing rod 8. A rotating plate 10 is rotatably connected to the inner wall of the first scissor lift 3. The other end of the rotating plate 10 is movably engaged inside the slot 9. A crossbar 22 located above the rotating plate 10 is fixedly installed on the inner wall of the first scissor lift 3.

[0029] By activating the hydraulic cylinder 5, the first scissor lift 3 and the second scissor lift 4 can rotate, thereby enabling the lifting frame 2 to move upward or downward. When the lifting frame 2 moves upward to perform lifting work, after the lifting frame 2 reaches the lifting height, the operator can rotate the rotating plate 10 and place it on the fixed rod 8, so that one end of the rotating plate 10 is locked inside the slot 9. This allows the support plate 7 and the rotating plate 10 to support the first scissor lift 3 and the second scissor lift 4, thereby improving the support strength of the first scissor lift 3 and the second scissor lift 4 for the lifting frame 2 and the heavy objects on the lifting frame 2, improving support stability, reducing the workload of the hydraulic cylinder 5, and extending the service life of the hydraulic cylinder 5.

[0030] The aforementioned lifting device with a hydraulic mechanism has two reinforcing ribs 11 fixedly installed on the rotating plate 10, and the two reinforcing ribs 11 are arranged symmetrically.

[0031] The two reinforcing ribs 11 are parallel to each other and their length direction is along the length direction of the rotating plate 10, which greatly improves the bending resistance of the rotating plate 10, thereby further improving the support strength of the rotating plate 10.

[0032] The aforementioned lifting device with a hydraulic mechanism has an elongated hole 12 on the rotating plate 10, which is evenly distributed on the surface of the rotating plate 10.

[0033] By opening an elongated hole 12 on the rotating plate 10, the weight of the rotating plate 10 can be reduced, thereby balancing the increased weight on the rotating plate 10 after the installation of the reinforcing rib 11. This achieves the goal of increasing the structural strength of the rotating plate 10 while avoiding excessive weight and increased energy consumption.

[0034] The aforementioned lifting device with a hydraulic mechanism has a block 13 fixedly installed on the rotating plate 10, a threaded rod 14 rotatably connected to the block 13, and a hook block 15 fixedly sleeved on the outer surface of the threaded rod 14.

[0035] When the rotating plate 10 is not needed to increase the support strength, the operator can rotate the rotating plate 10 to drive the hook block 15 to rotate, and then hook the hook block 15 onto the crossbar 22, so that the rotating plate 10 can be stored and the rotating plate 10 can be prevented from affecting the normal descent of the lifting frame 2.

[0036] In the aforementioned lifting device with a hydraulic mechanism, a nut 16 is threaded onto the outer surface of the threaded rod 14, and the nut 16 abuts against the block 13.

[0037] After the worker hooks the hook block 15 onto the crossbar 22, he can turn the nut 16 to tighten it, thereby limiting the threaded rod 14 and the hook block 15, thus ensuring the stability of the hook block 15 hooked onto the crossbar 22.

[0038] The aforementioned lifting device with a hydraulic mechanism has a reinforcing plate 17 fixedly installed on the surface of the support plate 7, and through holes 18 are opened on the support plate 7, with the through holes 18 evenly distributed on the support plate 7.

[0039] By designing the reinforcing plate 17 and the through hole 18, the structural strength of the support plate 7 can be increased while avoiding excessive weight, thereby improving the support strength of the support plate 7 on the rotating plate 10.

[0040] The aforementioned lifting device with a hydraulic mechanism has a square plate 19 fixedly installed at the bottom of the support plate 7, and the other end of the square plate 19 is fixedly connected to the second scissor lift 4.

[0041] The design of the square plate 19 makes the installation of the support plate 7 more stable, thereby further improving the load-bearing strength of the support plate 7.

[0042] The aforementioned lifting device with a hydraulic mechanism has a roller 20 rotatably connected to the left side of the base 1, and a handle 21 fixedly installed on the right side of the base 1.

[0043] When moving the entire device, the base 1 can be lifted by the handle 21 so that the rollers 20 contact the ground. Then, the handle 21 can be pulled or the handle 21 can be hooked onto the trailer to move the entire device, which facilitates transportation.

[0044] Working principle and usage process of this utility model:

[0045] In use, the operator places the heavy object on the lifting frame 2, then activates the hydraulic cylinder 5 to move the lifting frame 2 upwards to lift the heavy object. Once the lifting frame 2 reaches the lifting height, the operator can rotate the rotating plate 10 and place it on the fixed rod 8, so that one end of the rotating plate 10 is locked inside the slot 9. This allows the support plate 7 and the rotating plate 10 to support the first scissor lift 3 and the second scissor lift 4, thereby increasing the support strength of the first scissor lift 3 and the second scissor lift 4 for the lifting frame 2 and the heavy object on the lifting frame 2, improving support stability, reducing the workload of the hydraulic cylinder 5, and extending the service life of the hydraulic cylinder 5. When the heavy object is unloaded... After the lifting operation is completed, the operator can rotate the rotating plate 10 to drive the hook block 15 to rotate, and then hook the hook block 15 onto the crossbar 22. The nut 16 can be rotated and tightened to limit the threaded rod 14 and the hook block 15, thereby ensuring the stability of the hook block 15 hooked onto the crossbar 22. This allows the rotating plate 10 to be stored, preventing it from affecting the normal descent of the lifting frame 2. After the lifting frame 2 is lowered and stored, when it is necessary to move the entire equipment, the base 1 can be lifted by the handle 21 so that the roller 20 contacts the ground. Then, the handle 21 can be pulled or hooked onto the trailer to move the entire equipment, which is convenient for transportation and use.

[0046] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A lifting device with a hydraulic mechanism, comprising a base (1) and a lifting frame (2), wherein a first scissor lift (3) is rotatably connected to both sides of the inner wall of the base (1), the other end of the first scissor lift (3) is slidably connected to the lifting frame (2), a second scissor lift (4) is rotatably connected to the first scissor lift (3), one end of the second scissor lift (4) is slidably connected to the base (1), and the other end of the second scissor lift (4) is rotatably connected to the lifting frame (2), a connecting rod (6) is hinged between the two first scissor lifts (3), a hydraulic cylinder (5) is rotatably connected to the base (1), and the telescopic end of the hydraulic cylinder (5) is rotatably connected to the first scissor lift (3) which is far away from it, characterized in that: The inner wall of the second scissor lift (4) is fixedly equipped with a support plate (7), and a fixing rod (8) is fixedly installed on the support plate (7). A slot (9) is provided on the fixing rod (8). The inner wall of the first scissor lift (3) is rotatably connected with a rotating plate (10). The other end of the rotating plate (10) is movably engaged in the slot (9). The inner wall of the first scissor lift (3) is fixedly equipped with a crossbar (22) located above the rotating plate (10).

2. A lifting device with hydraulic means according to claim 1, characterized in that: The rotating plate (10) is fixedly installed with two reinforcing ribs (11), which are arranged symmetrically.

3. A lifting device with hydraulic mechanism according to claim 1, characterized in that: The rotating plate (10) has an elongated hole (12) which is evenly distributed on the surface of the rotating plate (10).

4. A lifting device with hydraulic mechanism according to claim 1, characterized in that: A block (13) is fixedly installed on the rotating plate (10), and a threaded rod (14) is rotatably connected to the block (13). A hook block (15) is fixedly sleeved on the outer surface of the threaded rod (14).

5. A lifting device with hydraulic means according to claim 4, characterized in that: The outer surface of the threaded rod (14) is threaded with a nut (16), which abuts against the block (13).

6. A lifting device with hydraulic mechanism according to claim 1, characterized in that: A reinforcing plate (17) is fixedly installed on the surface of the support plate (7), and through holes (18) are opened on the support plate (7), and the through holes (18) are evenly distributed on the support plate (7).

7. A lifting device with hydraulic mechanism according to claim 1, characterized in that: A square plate (19) is fixedly installed at the bottom of the support plate (7), and the other end of the square plate (19) is fixedly connected to the second scissor lift (4).

8. A lifting device with hydraulic mechanism according to claim 1, characterized in that: A roller (20) is rotatably connected to the left side of the base (1), and a handle (21) is fixedly installed on the right side of the base (1).

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