Hydraulic lifting device

Abstract

The utility model relates to the technical field of lifting devices, and particularly discloses a hydraulic lifting device which comprises a hydraulic cylinder and an extension rod with the top end extending out of the hydraulic cylinder, a plurality of slideways are symmetrically arranged on the outer side of the hydraulic cylinder, a sliding plate is slidably connected in the slideways, a supporting plate is fixedly connected to the top end of the sliding plate, and a connecting plate is fixedly connected to the top end of the extension rod. The top ends of the supporting plates are fixedly connected with the bottom end of the connecting plate, the supporting plates are symmetrically distributed on the periphery of the extension rod, and the sides, away from the hydraulic cylinder, of the supporting plates are detachably connected with a plurality of containing frames. The hydraulic cylinder is started to work, the extension rod is controlled to ascend and descend, the extension rod jacks up the connecting plate to ascend and descend, the connecting plate drives the supporting plate to ascend and descend, the supporting plate drives the placing frame to ascend synchronously in the lifting process, and material transportation is completed. The sliding way is arranged on the cylinder body of the hydraulic cylinder, the occupied space of the device is saved, meanwhile, the supporting plates are symmetrically located on the periphery of the extension rod, when the extension rod jacks up the connecting plate, the top of the extension rod is evenly stressed, and the extension rod is protected against breakage.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting devices, and particularly relates to a hydraulic lifting device. Background Art

[0002] A hydraulic lifting device is a hoisting equipment that works based on the hydraulic principle. It is widely used in multiple fields such as construction, transportation, mining, and power construction. The working principle of the hydraulic lifting device is mainly based on the incompressibility of the liquid and the principle of constant volume. When the liquid enters the hydraulic cylinder, due to the pressure of the liquid, the piston in the hydraulic cylinder will be subjected to a thrust force, thereby pushing the lifting accessories (such as a clamping mechanism, a lifting beam, etc.) connected thereto to move upward, realizing the lifting of heavy objects. Conversely, when the hydraulic pump extracts the liquid from the hydraulic cylinder, the oil storage in the hydraulic cylinder decreases, the pressure on the piston decreases, and the piston moves in the reverse direction, realizing the lowering of heavy objects.

[0003] The Chinese utility model patent with the publication number of "CN215558719U" discloses a hydraulic lifting device. An auxiliary platform is arranged on the side of the hydraulic cylinder. The bottom of the auxiliary platform is fixedly connected with a base. A sliding plate is slidably connected to the side of the auxiliary platform. A placement frame is arranged on the side of the sliding plate away from the auxiliary platform. Since the auxiliary platform, the base, and the sliding plate are all on the side of the hydraulic cylinder, and when the hydraulic cylinder lifts the sliding plate, because the sliding plate is on one side of the hydraulic cylinder, it will cause uneven stress on the top of the extension rod in the hydraulic cylinder, and it is easy to cause damage to the extension rod in the hydraulic cylinder. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a hydraulic lifting device to solve the problem that the top of the extension rod of the existing hydraulic lifting device is unevenly stressed and is easy to cause damage to the extension rod in the hydraulic cylinder.

[0005] To solve the above problems, the following technical solutions are provided:

[0006] A hydraulic lifting device includes a hydraulic cylinder and an extension rod extending out of the hydraulic cylinder at the top. A plurality of sliding channels are symmetrically arranged outside the hydraulic cylinder. A sliding plate is slidably connected in the sliding channels. The top of the sliding plate is fixedly connected with a support plate. The top of the extension rod is fixedly connected with a connecting plate. The top of the support plate is fixedly connected with the bottom of the connecting plate. The support plates are symmetrically distributed around the periphery of the extension rod. A plurality of placement frames are detachably connected to the side of the support plate away from the hydraulic cylinder.

[0007] The basic principle of the above technical solution is as follows: Start the operation of the hydraulic cylinder, control the lifting and lowering of the extension rod. The extension rod jacks up the connecting plate to lift and lower. The connecting plate drives the support plate to lift and lower, so that the sliding plate slides up and down in the sliding channels outside the hydraulic cylinder. The substances to be transported are placed in the placement frames. During the lifting process of the support plate, the placement frames are lifted synchronously to complete the transportation of the substances.

[0008] The beneficial effect of the above technical solution is that compared with the existing auxiliary table, base and sliding plate which are all on the side of the hydraulic cylinder, the technical solution sets the slide on the cylinder body of the hydraulic cylinder, does not require an auxiliary table, saves the space of the device, and is convenient for carrying. At the same time, support plates are symmetrically arranged on the periphery of the cylinder body, and the support plates are also symmetrically located on the periphery of the extension rod and fixedly connected to the connecting plate. When the extension rod lifts the connecting plate, the top of the extension rod is evenly stressed, protecting the extension rod from being easily damaged.

[0009] Furthermore, a base is fixedly arranged at the bottom of the hydraulic cylinder, and the top of the base is flush with the bottom of the slideway. When the sliding plate slides to the bottom of the slideway, the sliding plate is supported on the base, and the base can stably support the sliding plate, so that the material can be stably loaded into the placement frame.

[0010] Furthermore, a universal wheel is provided at the bottom end of the base, and a push handle is provided at the side of the base. The base is pushed by the push handle, and the universal wheel carries the base to move, so that the entire lifting device can be moved as a whole.

[0011] Furthermore, the slideway is a T-shaped groove, a T-shaped slider is fixedly connected to the side of the sliding plate, and the T-shaped slider is adapted to the T-shaped groove and slidably connected in the T-shaped groove. The T-shaped groove limits the T-shaped slider to slide therein, and prevents the T-shaped slider from detaching from the slideway during the sliding process.

[0012] Furthermore, a plurality of slots are provided on the side of the support plate away from the hydraulic cylinder, and a card plate is provided on the side of the placement frame, which is engaged in the slot so that the placement frame is suspended on one side of the support plate. The placement frame can be removed from the slot as a whole by lifting the card plate upwards, and multiple placement frames are used for rotation operation. When an empty placement frame is put down, the placement frame loaded with transported materials can be replaced with the empty placement frame, thereby shortening the stay time of the hydraulic lifting device and improving the efficiency of the hydraulic lifting device in transporting materials.

[0013] Furthermore, a lifting handle is provided on the top of the placement frame, and the placement frame can be conveniently removed from the card slot by pulling the lifting handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of an embodiment of the utility model.

[0015] The figure marks in the drawings of the specification include: hydraulic cylinder 1, extension rod 2, T-shaped slide 3, T-shaped slider 4, sliding plate 5, support plate 6, connecting plate 7, slot 8, clamping plate 9, placement frame 10, lifting handle 11, base 12, universal wheel 13, push handle 14. DETAILED DESCRIPTION

[0016] The following is further described in detail through specific implementation methods:

[0017] The embodiment is basically as shown in the attached Figure 1 As shown:

[0018] A hydraulic lifting device, as Figure 1 shown, includes a hydraulic cylinder 1 and an extension rod 2 extending out of the hydraulic cylinder at the top. On both sides of the outside of the hydraulic cylinder 1, there are two symmetric T-shaped grooves, and a T-shaped slideway 3 is formed in the T-shaped grooves. A T-shaped slider 4 is slidably connected in the T-shaped slideway 3. A sliding plate 5 is welded to the side of the T-shaped slider 4. A support plate 6 is welded to the top of the sliding plate 5. A connecting plate 7 is welded to the top of the extension rod 2. The top of the support plate 6 is welded to the bottom of the connecting plate 7. The support plates 6 are symmetrically distributed around the outer periphery of the extension rod 2. On one side of the support plate 6 away from the hydraulic cylinder 1, there is a clamping groove 8. A clamping plate 9 is provided on the side of the placement frame 10. The clamping plate 9 is clamped into the clamping groove 8 so that the placement frame 10 is suspended on one side of the support plate 6. A lifting handle 11 is provided at the top of the placement frame 10. The bottom of the hydraulic cylinder 1 is fixedly installed with a base 12. The top of the base 12 is flush with the bottom of the T-shaped slideway 3. Universal wheels 13 are provided at the bottom of the base 12. A braking device is installed on the universal wheels 13. A push handle 14 is provided on the side of the base.

[0019] The specific implementation process is as follows:

[0020] Start the operation of the hydraulic cylinder 1, control the lifting and lowering of the extension rod 2. The extension rod 2 jacks up the connecting plate 7 to lift and lower, and the connecting plate 7 drives the support plate 6 to lift and lower, so that the T-shaped slider 4 slides up and down in the T-shaped slideway 3 outside the hydraulic cylinder 1. Thus, the sliding plate 5 slides outside the hydraulic cylinder 1. Place the material to be transported into the placement frame 10. During the lifting process of the support plate 6, the placement frame 10 is lifted synchronously to complete the transportation of the material. This device sets the T-shaped slideway 3 on the cylinder body of the hydraulic cylinder 1. The cylinder body is equivalent to the auxiliary table in the existing device, saving the floor space of the device and being convenient for handling. At the same time, the support plates 6 are symmetrically distributed around the outer periphery of the hydraulic cylinder 1, and the support plates 6 are also symmetrically distributed around the outer periphery of the extension rod 2 and fixedly connected to the connecting plate 7. When the extension rod 2 jacks up the connecting plate 7, the force on the top of the extension rod 2 is uniform, protecting the extension rod 2 from being easily damaged.

[0021] The above are only the embodiments of the present invention. Common general knowledge such as specific structures and characteristics known in the solution is not described in detail here. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. A hydraulic lifting device, comprising a hydraulic cylinder and an extension rod with a top end extending out of the hydraulic cylinder, characterized in that: A plurality of slideways are symmetrically arranged on the outer side of the hydraulic cylinder, a sliding plate is slidably connected in the slideway, a support plate is fixedly connected to the top of the sliding plate, a connecting plate is fixedly connected to the top of the extension rod, the top of the support plate is fixedly connected to the bottom of the connecting plate, the support plates are symmetrically distributed on the outer periphery of the extension rod, and a plurality of placement frames are detachably connected to the side of the support plate away from the hydraulic cylinder.

2. A hydraulic lifting device according to claim 1, characterized in that: A base is fixedly arranged at the bottom end of the hydraulic cylinder, and the top end of the base is flush with the bottom end of the slideway.

3. A hydraulic lifting device according to claim 2, characterized in that: The bottom end of the base is provided with a universal wheel, and the side surface of the base is provided with a push handle.

4. A hydraulic lifting device according to claim 3, characterized in that: The slideway is a T-shaped groove, and a T-shaped slider is fixedly connected to the side of the sliding plate. The T-shaped slider is adapted to the T-shaped groove and is slidably connected in the T-shaped groove.

5. A hydraulic lifting device according to claim 4, characterized in that: A plurality of slots are arranged on one side of the support plate away from the hydraulic cylinder, and a clamping plate is arranged on the side of the placement frame. The clamping plate is clamped into the slots so that the placement frame is suspended on one side of the support plate.

6. A hydraulic lifting device according to claim 5, characterized in that: A lifting handle is provided on the top of the placement frame.

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