Hydraulic lifting device
By designing a hydraulic lifting device, which uses a combination structure of base bracket, column, shaft, gantry and hydraulic cylinder, the problems of low lifting efficiency and high safety risk of aluminum alloy filter cover are solved, and efficient and safe cover operation is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI QIANLEI MACHINERY CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-07-07
AI Technical Summary
Existing aluminum alloy filter cover lifting operations are inefficient, complex, require multiple people to operate, cause rapid cooling of the housing, pose high safety risks, and occupy irregular space.
Design a hydraulic lifting device that uses a combination structure of base bracket, column, shaft, gantry, rotating arm and hydraulic cylinder. Utilize the hydraulic cylinder as power to realize the automated lifting and installation of the cover plate.
It improved operational efficiency, reduced energy consumption, simplified operating procedures, reduced safety risks, and enhanced production efficiency and safety.
Smart Images

Figure CN224467331U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a hydraulic lifting device. Background Technology
[0002] Aluminum alloy filters are crucial components in online aluminum alloy molten metal processing equipment. Daily operations include lifting the cover plate, replacing filter plates, and processing aluminum slag. The cover plate is typically lifted using a bridge crane and moved to the ground. After processing the filter plates and aluminum slag inside the chamber, the cover plate is then lifted and reinstalled. This process suffers from several drawbacks: (1) low efficiency; (2) complex operation; (3) requiring multiple personnel and equipment; (4) rapid chamber cooling due to long operation times; (5) large area occupied for temporary cover plate storage, resulting in an unregulated work environment; and (6) a high risk of accidents. Therefore, a dedicated hydraulic lifting device is urgently needed. Utility Model Content
[0003] This invention overcomes the shortcomings of existing technologies and provides a hydraulic lifting device.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a hydraulic lifting device, comprising:
[0005] Base bracket;
[0006] The feature is that: a plurality of adjustable supports are provided at the bottom of the base bracket, two columns are provided at the top of the base bracket near the right end, a rotating shaft is connected between the top ends of the two columns, a gantry is connected above the rotating shaft, a rotating arm is provided on the outer wall of the rotating shaft near the front end, and a hydraulic cylinder fixed on the base bracket is provided below the rotating arm, with the top end of the piston rod of the hydraulic cylinder hinged to the rotating arm.
[0007] In the above structure, bearing seats fixed to the top of the column are respectively provided at both ends of the rotating shaft.
[0008] In the above structure, two limiting plates are provided at the top of the gantry.
[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: The hydraulic lifting device of this utility model has a reasonable structural design, uses a hydraulic cylinder as power, and the filter is placed on the base bracket to form an integrated unit when in use. It is convenient to use, flexible and safe to operate, does not require the cooperation of many people, improves production efficiency, saves energy, and reduces safety risks. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of a hydraulic lifting device according to an embodiment of the present utility model;
[0011] Figure 2 This is a reference diagram showing the usage state of a hydraulic lifting device according to an embodiment of this utility model.
[0012] In the picture:
[0013] 1. Base bracket; 2. Adjustable support; 3. Column; 4. Rotating shaft; 5. Gantry; 6. Rotating arm; 7. Hydraulic cylinder; 8. Bearing seat; 9. Limiting plate; 10. Aluminum alloy filter; 11. Cover plate. Detailed Implementation
[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0015] like Figure 1-2 As shown, a hydraulic lifting device includes:
[0016] Base bracket 1;
[0017] The feature is that: a plurality of adjustable supports 2 are provided at the bottom of the base bracket 1; two columns 3 are provided at the top of the base bracket 2 near the right end; a rotating shaft 4 is connected between the top ends of the two columns 3; a gantry 5 is connected above the rotating shaft 4; a rotating arm 6 is provided on the outer wall of the rotating shaft 4 near the front end; and a hydraulic cylinder 7 fixed on the base bracket 1 is provided below the rotating arm 6; the top end of the piston rod of the hydraulic cylinder 7 is hinged to the rotating arm 6.
[0018] In the above structure, bearing seats 8 are respectively provided at both ends of the rotating shaft 4 and fixed to the top of the column 3.
[0019] In the above structure, two limiting plates 9 are provided at the top of the gantry 5.
[0020] In practical use, the hydraulic lifting device of this utility model is used as follows: the aluminum alloy filter 10 is placed on the base bracket 1, the limiting plate is connected to the cover plate 11 by bolts, the hydraulic station is started, and the hydraulic cylinder generates thrust. The piston rod of the hydraulic cylinder extends and pushes the gantry to rotate around the pivot axis, thereby lifting the cover plate to the highest position. The oil inlet and outlet direction of the hydraulic cylinder is controlled, and the piston rod of the hydraulic cylinder retracts. The cover plate falls to the top of the aluminum alloy filter, the operation is completed, the hydraulic station oil pump is turned off, and the hydraulic station stops working.
[0021] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A hydraulic lifting device, comprising: Base bracket (1); The feature is that: a plurality of adjustable supports (2) are provided at the bottom of the base bracket (1), two columns (3) are provided at the top of the base bracket (1) near the right end, a rotating shaft (4) is connected between the top ends of the two columns (3), a gantry (5) is connected above the rotating shaft (4), a rotating arm (6) is provided on the outer wall of the rotating shaft (4) near the front end, and a hydraulic cylinder (7) fixed on the base bracket (1) is provided below the rotating arm (6), and the top end of the piston rod of the hydraulic cylinder (7) is hinged to the rotating arm (6).
2. The hydraulic lifting device according to claim 1, characterized in that: Bearing seats (8) fixed to the top of the column (3) are provided at both ends of the shaft (4).
3. The hydraulic lifting device according to claim 1, characterized in that: Two limiting plates (9) are provided at the top of the gantry (5).