Lifting device with multi-gear angle adjusting and positioning functions

Abstract

The utility model discloses a lifting device with multi-gear angle adjusting and positioning functions, which comprises a lifting component, an adjusting and positioning component and an operating rod component, and the operating rod component is movably connected with the lifting component through the adjusting and positioning component; the interior of the lifting assembly is of a cavity structure, a shaft sleeve is arranged on the inner wall of the cavity structure, and a mounting plate is arranged at the end of the cavity structure. The adjusting and positioning assembly comprises an angle adjusting piece and a gear adjusting piece, the angle adjusting piece is installed in the cavity structure of the lifting assembly through a shaft sleeve, and the gear adjusting piece is arranged at the end of the lifting assembly through an installation plate and connected with the angle adjusting piece. The operating rod assembly comprises an operating rod, a transmission rod is arranged in the operating rod, the top of the transmission rod is connected with an operating handle, the end of the operating handle extends out of the operating rod, and the bottom of the transmission rod is matched with the adjusting and positioning assembly. The adjusting and positioning assembly is arranged at the joint of the operating rod assembly and the lifting assembly, so that multi-gear adjusting and positioning of the connecting angle of the operating rod assembly and the lifting assembly are achieved.

Description

Technical Field

[0001] The utility model relates to the field of hydraulic lifting, in particular to a lifting device with multi-speed angle adjustment and positioning functions. Background Art

[0002] A hydraulic lift system uses an electric motor to start and drive an oil pump, drawing pressurized oil from a tank into a cylinder. As the oil pressure rises, the piston rod in the cylinder begins to move, pushing the connected lifting mechanism upward, thereby lifting the object. Once the desired height is reached, control elements maintain the hydraulic system pressure at a certain level, ensuring a stable lift.

[0003] For example, the patent document with patent number 202321011649.4 discloses an easy-to-adjust car lift, including a base frame, an oil pump, a connecting frame, a handle, a tray, a first rotating shaft, a lifting arm, a connecting piece and a safety tooth. The bottom of the oil pump is installed on the base frame, the output shaft of the oil pump is hinged to the connecting frame, the two ends of the connecting frame are connected to the connecting piece through the first rotating shaft, the bottom end of the connecting piece abuts against the safety tooth provided on the base frame, the connecting frame can rotate around the first rotating shaft, a connecting block is provided on the first rotating shaft, the connecting block can rotate with the first rotating shaft, the connecting block is connected to the lifting arm, the bottom end of the handle is fixed on the connecting frame, a lifting pedal and a pressure relief pedal are provided on the oil pump, the oil pump is controlled by the lifting pedal and the pressure relief pedal, one end of the lifting arm is provided on the base frame, the other end of the lifting arm is connected to the tray, and the tray extends along the length direction of the base frame.

[0004] The defect of the above patent solution is that the bottom end of the handle is fixedly connected to the connecting frame, that is, the angle between the handle and the connecting frame is fixed, which makes it impossible to use it in a small place.

[0005] Therefore, it is necessary for us to improve such a structure to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of the utility model is to provide a lifting device with multi-level angle adjustment and positioning functions to solve the problems existing in the prior art.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions:

[0008] A lifting device with multi-speed angle adjustment and positioning functions, comprising a lifting assembly, an adjustment and positioning assembly, and an operating rod assembly, wherein the operating rod assembly is movably connected to the lifting assembly through the adjustment and positioning assembly;

[0009] The interior of the lifting assembly is a cavity structure, a shaft sleeve is provided on the inner wall of the cavity structure, and a mounting plate is provided at the end of the cavity structure;

[0010] The adjusting and positioning assembly comprises an angle adjusting piece and a gear adjusting piece, the angle adjusting piece is installed in the cavity structure of the lifting assembly through a shaft sleeve, and the gear adjusting piece is arranged at the end of the lifting assembly through a mounting plate and is connected with the angle adjusting piece;

[0011] The operating rod assembly comprises an operating rod, a transmission rod is arranged in the operating rod, an operating handle is connected to the top of the transmission rod, the end of the operating handle extends out of the operating rod, and the bottom of the transmission rod is matched with the adjusting and positioning assembly.

[0012] Further, the angle adjusting piece comprises a fixed part and a rotating part;

[0013] The fixed part is provided with a connecting hole penetrating through, and is movably connected with the lifting assembly through the connecting hole and the shaft sleeve; the bottom of the rotating part is provided with an opening for accommodating the gear adjusting piece, and the top of the rotating part is provided with a shaft hole;

[0014] The bottom end of the transmission rod penetrates through the shaft hole and is limitingly matched with the gear adjusting piece arranged in the opening.

[0015] Further, the gear adjusting piece comprises a connecting plate and a gear plate;

[0016] The connecting plate is provided with a threaded hole, and is connected and fixed with the mounting plate arranged at the end of the cavity structure through the threaded hole; the gear plate is arranged in the opening of the angle adjusting piece, a plurality of gear holes are arranged on the gear plate, and the gear holes are used for limitingly matching with the bottom end of the transmission rod.

[0017] Further, the operating rod is internally provided with an accommodation cavity penetrating through in the axial direction, the operating rod is externally provided with an operating port communicating with the accommodation cavity, and the end of the operating handle extends out of the operating rod through the operating port; the operating port comprises a limiting groove and an angle adjusting groove arranged above the limiting groove.

[0018] Further, the bottom of the operating rod is provided with a gear limiting piece, the bottom of the gear limiting piece extends out of the operating rod, the top of the gear limiting piece is provided with a return spring, one end of the return spring is connected with the gear limiting piece, and the other end of the return spring is fixed through a limiting block.

[0019] In summary, the lifting device has the following beneficial effects:

[0020] By arranging the adjusting and positioning assembly at the connection position of the operating rod assembly and the lifting assembly, the multi-gear adjustment and positioning of the connection angle of the operating rod assembly and the lifting assembly are realized. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the assembly schematic view of the lifting device with the multi-gear angle adjusting and positioning function.

[0022] Figure 2It is the exploded schematic view of the lifting device with multi-gear angle adjustment and positioning function.

[0023] Figure 3 It is the schematic view of the angle adjustment member.

[0024] Figure 4 It is the schematic view of the gear adjustment member.

[0025] Figure 5 It is the adjustment and locking state schematic view of the operating rod assembly.

[0026] Figure 6 It is the adjustment and locking state sectional view of the operating rod assembly. DETAILED DESCRIPTION

[0027] In order to make the technical means, creation characteristics, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with the drawings and specific embodiments.

[0028] As Figures 1 to 6 shown, the utility model provides a kind of lifting device with multi-gear angle adjustment and positioning function, including lifting assembly 1, adjustment and positioning assembly 2 and operating rod assembly 3, operating rod assembly 3 is connected with lifting assembly 1 by adjustment and positioning assembly 2 movably;

[0029] The inside of lifting assembly 1 is cavity structure, shaft sleeve 11 is equipped on the inner wall of cavity structure, and mounting plate 12 is equipped at the end of cavity structure;

[0030] Adjustment and positioning assembly 2 includes angle adjustment member 21 and gear adjustment member 22, angle adjustment member 21 is installed in the cavity structure of lifting assembly 1 by shaft sleeve 11, gear adjustment member 22 is arranged at the end of lifting assembly 1 by mounting plate 12, and is connected with angle adjustment member 21;

[0031] Operating rod assembly 3 includes operating rod 31, transmission rod 32 is equipped in the inside of operating rod 31, operating handle 33 is connected to the top of transmission rod 32, the end of operating handle 33 extends operating rod 31, and the bottom of transmission rod 32 cooperates with adjustment and positioning assembly 2.

[0032] Angle adjustment member 21 includes fixed part 211 and rotating part 212;

[0033] Connecting hole 213 is equipped on fixed part 211 and passes through, and is movably connected with lifting assembly 1 by connecting hole 213 and shaft sleeve 11, opening 214 for accommodating gear adjustment member 22 is equipped at the bottom of rotating part 212, and shaft hole 215 is equipped at the top of rotating part 212;

[0034] The bottom end of the transmission rod 32 passes through the shaft hole 215 and is in position-limiting cooperation with the gear adjusting part 22 located in the opening 214.

[0035] The gear adjusting part 22 comprises a connecting plate 221 and a gear plate 222.

[0036] The connecting plate 221 is provided with a threaded hole and is connected and fixed with the mounting plate 12 arranged at the end of the cavity structure through the threaded hole; the gear plate 222 is arranged in the opening 214 of the angle adjusting part 21, and a plurality of gear holes 223 are arranged on the gear plate 222, and the gear holes 223 are used for position-limiting cooperation with the bottom end of the transmission rod 32.

[0037] The inside of the operation rod 31 is provided with an axial through accommodating cavity 34, and the outer surface of the operation rod 31 is provided with an operation port 35 in communication with the accommodating cavity 34, and the end of the operation handle 33 extends out of the operation rod 31 through the operation port 35; the operation port 35 comprises a limiting groove 351 and an angle adjusting groove 352 arranged above the limiting groove 351.

[0038] The bottom of the operation rod 31 is provided with a gear limiting part 36, the bottom of the gear limiting part 36 extends out of the operation rod 31, the top of the gear limiting part 36 is provided with a reset spring 37, one end of the reset spring 37 is connected with the gear limiting part 36, and the other end of the reset spring 37 is fixed through a limiting block 38.

[0039] The working principle of the utility model is as follows:

[0040] When the utility model needs to adjust the angle of the lifting assembly 1 and the operation rod assembly 3, the operation rod 31 is pulled upward through the operation handle 33, so that the gear limiting part 36 arranged at the bottom of the operation rod 31 is away from the gear hole 223 of the gear adjusting part 22, then the operation rod 31 is clamped into the angle adjusting groove 352, and in this state, the operation rod assembly 3 can rotate freely with the connecting part of the lifting assembly 1 as the fulcrum.

[0041] When the gear limiting part 36 arranged at the bottom of the operation rod 31 is rotated to the gear hole 223 corresponding to the target angle, the operation rod 31 is clamped into the limiting groove 351 again, the gear limiting part 36 is clamped into the gear hole 223 corresponding to the target angle under the action of the reset spring 37, and locking is realized.

[0042] In this paper, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of expressing the technical scheme clearly and conveniently, and therefore cannot be understood as a limitation on the utility model.

[0043] In this document, the terms "comprise", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0044] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A lifting device with multi-level angle adjustment and positioning functions, characterized in that: It comprises a lifting assembly (1), an adjusting and positioning assembly (2) and an operating rod assembly (3), wherein the operating rod assembly (3) is movably connected to the lifting assembly (1) via the adjusting and positioning assembly (2); The interior of the lifting assembly (1) is a cavity structure, a shaft sleeve (11) is provided on the inner wall of the cavity structure, and a mounting plate (12) is provided at the end of the cavity structure; The adjustment and positioning assembly (2) comprises an angle adjustment member (21) and a gear adjustment member (22); the angle adjustment member (21) is mounted in the cavity structure of the lifting assembly (1) via a shaft sleeve (11); the gear adjustment member (22) is arranged at the end of the lifting assembly (1) via a mounting plate (12) and is connected to the angle adjustment member (21); The operating rod assembly (3) comprises an operating rod (31), a transmission rod (32) is provided inside the operating rod (31), an operating handle (33) is connected to the top of the transmission rod (32), the end of the operating handle (33) extends out of the operating rod (31), and the bottom of the transmission rod (32) cooperates with the adjustment and positioning assembly (2).

2. The lifting device with multi-level angle adjustment and positioning functions according to claim 1, characterized in that: The angle adjustment member (21) comprises a fixing portion (211) and a rotating portion (212); The fixing portion (211) is provided with a connecting hole (213) extending therethrough, and is movably connected to the lifting assembly (1) by cooperating with the shaft sleeve (11) through the connecting hole (213); an opening (214) for accommodating the gear adjustment member (22) is provided at the bottom of the rotating portion (212); and an axial hole (215) is provided at the top of the rotating portion (212); The bottom end of the transmission rod (32) passes through the shaft hole (215) and is limitedly engaged with the gear adjustment member (22) located in the opening (214).

3. The lifting device with multi-level angle adjustment and positioning functions according to claim 2, characterized in that: The gear adjustment member (22) comprises a connecting plate (221) and a gear plate (222); The connecting plate (221) is provided with a threaded hole and is connected and fixed to a mounting plate (12) arranged at the end of the cavity structure through the threaded hole; the shift plate (222) is arranged in the opening (214) of the angle adjustment member (21), and a plurality of shift holes (223) are provided on the shift plate (222), and the shift holes (223) are used to cooperate with the bottom end of the transmission rod (32) in a limiting manner.

4. The lifting device with multi-level angle adjustment and positioning functions according to claim 3, characterized in that: An axially penetrating accommodation cavity (34) is provided inside the operating rod (31); an operating port (35) communicating with the accommodation cavity (34) is provided on the outer surface of the operating rod (31); the end of the operating handle (33) extends out of the operating rod (31) through the operating port (35); and the operating port (35) includes a limiting groove (351) and an angle adjustment groove (352) provided above the limiting groove (351).

5. The lifting device with multi-level angle adjustment and positioning functions according to claim 4, characterized in that: A gear limiting member (36) is provided at the bottom of the operating rod (31), the bottom of the gear limiting member (36) extends out of the operating rod (31), and a return spring (37) is provided at the top of the gear limiting member (36), one end of the return spring (37) is connected to the gear limiting member (36), and the other end of the return spring (37) is fixed by a limit block (38).

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