Lifting transfer trolley

Abstract

The utility model provides a lifting transfer trolley which comprises a machine frame, a cargo carrying plate movably installed on the machine frame and a lifting unit arranged in the machine frame, and the lifting unit comprises a driving motor installed on the machine frame, a plurality of lead screws vertically arranged on the machine frame and a transmission assembly in transmission connection with the lead screws. The lead screws are correspondingly provided with nut seats, the nut seats penetrate through lifting channels formed in the rack to be fixedly connected with a cargo carrying plate, the power output end of the driving motor is connected with any lead screw, and the other lead screws are driven by a transmission assembly to operate synchronously. The nut seat drives the cargo carrying plate to do horizontal reciprocating lifting motion in the rack; universal wheels are further arranged at the bottom of the rack; when the transfer trolley is used, the transfer trolley can descend to be close to the ground so that up-down carrying and freight transportation can be facilitated, the lifting device arranged on the transfer trolley can horizontally and stably conduct lifting motion, the precision is high, the transfer trolley can be stopped at any position, the locking effect is good, and the safety is relatively high.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment transportation, in particular to a lifting and transferring vehicle. Background Art

[0002] Existing transfer carts are generally provided with a lifting structure. For example, a Chinese patent with the authorization announcement number CN204324798U and the name of the circuit breaker transfer cart discloses a transfer cart with a lifting structure, including a frame and a circuit breaker mounting frame. The four corners of the frame corresponding to the circuit breaker mounting frame are provided with lifting screws extending in the vertical direction. The circuit breaker mounting frame is installed at the ends of the four lifting screws, and the height of the circuit breaker mounting frame can be adjusted by adjusting the lifting screws. The height adjustment of the transfer cart has been solved, but the applicant found that the disadvantage of the transfer cart in actual use is that when adjusting the height of the circuit breaker mounting frame, the four lifting screws need to be adjusted at the same time, and the positions of the four lifting screws are in different places, which is very inconvenient to adjust. Utility Model Content

[0003] In view of the deficiencies in the above-mentioned prior art, the purpose of the present utility model is to provide a lifting and transferring vehicle.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lifting and transfer vehicle, comprising: a frame, a cargo board movably mounted on the frame, and a lifting unit arranged in the frame, the lifting unit comprising: a driving motor installed on the frame, a plurality of screw rods vertically arranged on the frame, and a transmission assembly connected to the screw rods, a nut seat is correspondingly installed on the screw rod, and the nut seat passes through a lifting groove provided on the frame and is fixedly connected to the cargo board, the power output end of the driving motor is arbitrarily connected to one of the screw rods, and the transmission assembly drives the remaining screw rods to run synchronously, so that the nut seat drives the cargo board to perform horizontal reciprocating lifting motion in the frame; a universal wheel is also provided at the bottom of the frame.

[0005] Furthermore, the drive motor arranged on the frame runs and drives a lead screw to rotate. At this time, the gear meshing with the lead screw rotates synchronously, the transmission rod rotates synchronously, and so on, to realize the rotation of the four lead screws; during the initial operation, in view of the time difference in the lead screw transmission, the applicant arranges the thread at the bottom of the lead screw connected to the drive motor to be denser than that of the other lead screws, so as to ensure that the relative displacement of the nut seat is maintained between 0.1-1mm), thereby ensuring that the four lead screws rotate together and drive the cargo plate to move.

[0006] As a preferred solution of the present application, in order to ensure that the cargo board can always rotate effectively, a stopper is installed on the frame and at the bottom of the cargo board to limit the position of the cargo board.

[0007] As a preferred solution of the present application, a pulling and unloading part is also installed on the frame, and the pulling and unloading part includes: a rotating plate arranged on the top surface of the cargo plate, and the unloading is facilitated by adjusting the angle of the rotating plate. In order to save manual labor, the lever principle is borrowed, that is, a pulley assembly installed on the frame and a pull rope passing through the pulley assembly and fixedly connected to the rotating plate, and the pull rope passing through the pulley assembly is used to control the rotation of the rotating plate.

[0008] As a preferred solution of the present application, in order to facilitate manual operation, a handle is provided on the end of the pull rope away from the pulley assembly.

[0009] As a preferred solution of the present application, since the pulley assembly may easily fall apart after the pull rope is loosened, an anti-falling ring is further provided at one end of the pull rope close to the handle to relatively fix the pulley assembly.

[0010] Furthermore, in order to facilitate efficient material unloading, the width D of the rotating plate is ≥ 2 / 3 of the width L of the cargo plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] When the transfer vehicle is used, the present invention can be lowered close to the ground to facilitate the up and down transportation of freight, and the lifting device provided in the present invention can perform horizontal and stable lifting movements with high precision, can stop at any position, has a good locking effect, and is relatively safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 It is a side structural schematic diagram of the utility model;

[0016] Figure 3 It is a schematic diagram of the installation position of the screw rod and the transmission assembly in the utility model.

[0017] In the figure: 1, frame; 111, column; 112, cover plate; 11, lifting channel; 12, rotating mounting seat; 2, cargo plate; 3, lifting unit; 31, driving motor; 32, screw rod; 33, transmission assembly; 331, transmission rod; 332, gear; 34, nut seat; 4, pulling unloading part; 41, rotating plate; 5, stopper; 8, universal wheel. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] like Figure 1-3 As shown, a lifting transfer vehicle comprises: a frame 1 (the present application is preferably provided with four columns 111 surrounding a square, and a cover plate 112 is welded above the columns 111 to form the frame 1), a cargo board 2 movably mounted on the frame 1 (the columns 111), specifically, the cargo board 2 passes through the columns 111 to facilitate reciprocating lifting and lowering movement, and the columns 111 can also be used for guiding to further ensure the lifting stability of the present application, and a lifting unit 3 arranged in the frame 1, the lifting unit 3 comprising: a driving motor 31 mounted on the frame 1, a plurality of screw rods 32 vertically arranged on the frame 1 (at least two screw rods 32 arranged opposite to each other, but the present application takes into account the effectiveness of the operation of the screw rods 32, and for this reason, it is preferred There are four of them, which are respectively arranged in the corresponding columns 111, and the columns 111 can also serve as a protective shell for the screw rod 32), a transmission assembly 33 that is transmission-connected to the screw rod 32, a nut seat 34 is correspondingly installed on the screw rod 32, and the nut seat 34 passes through the lifting channel 11 provided on the frame 1 and is fixedly connected to the cargo board 2. It should be noted that the lifting channel 11 passes through both sides, and the power output end of the drive motor 31 is arbitrarily connected to one of the screw rods 32, and the transmission assembly 33 drives the remaining screw rods 32 to run synchronously, so that the nut seat 34 drives the cargo board 2 to perform horizontal reciprocating lifting motion in the frame 1; the bottom of the frame 1 is also provided with a universal wheel 8 with a braking function (the universal wheel 8 is the prior art and will not be repeated).

[0020] The transmission assembly 33 includes: a transmission rod 331 and gears 332 fixed at both ends of the transmission rod 331; the gears 332 at both ends of the transmission rod 331 mesh with adjacent screw rods 32, and the rotation direction of the gears 332 is perpendicular to the rotation direction of the screw rod 32 in the plane. In order to ensure that the transmission rod 331 and the gears 332 on the transmission rod 331 can mesh and rotate with the screw rod 32, the transmission rod 331 passes through a rotating mounting seat 12 (i.e., a bearing seat) provided in the frame 1.

[0021] How this application works:

[0022] That is, the drive motor 31 arranged on the frame 1 runs and drives the screw 32 to rotate. At this time, the gear 332 meshing with the screw 32 rotates synchronously, and the transmission rod 331 rotates synchronously, and so on, to realize the rotation of the four screws 32; during the initial operation, in view of the time difference in the transmission of the screw 32, the applicant arranges the screw 32 connected to the drive motor 31 to have a denser thread at the bottom than the other screws 32, so as to ensure that the relative displacement of the nut seat 34 is maintained between 0.1-1mm), thereby ensuring that the four screws 32 rotate together and drive the cargo plate 2 to move.

[0023] To ensure that the cargo board 2 can always rotate effectively, a stopper 5 is installed on the frame 1 and at the bottom of the cargo board 2 to limit the cargo board 2.

[0024] The frame 1 is also equipped with a pulling and unloading part 4, which includes: a rotating plate 41 arranged on the top surface of the cargo board 2. By adjusting the angle of the rotating plate 41, unloading is facilitated. In order to save manual labor, the lever principle is used, that is, a pulley assembly installed on the frame 1 and a pull rope passing through the pulley assembly and fixedly connected to the rotating plate 41. The pull rope passing through the pulley assembly is used to control the rotation of the rotating plate 41.

[0025] In order to facilitate manual operation, a handle is provided on the end of the pull rope 43 away from the pulley assembly 42 .

[0026] Since the pulley assembly 42 may easily fall apart after the pull rope 43 is loosened, an anti-falling ring is provided at one end of the pull rope 43 close to the handle to fix the pulley assembly 42.

[0027] In order to facilitate efficient unloading, the width D of the rotating plate 41 is ≥ 2 / 3 of the width L of the cargo plate 2 .

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A lifting and transferring vehicle, characterized in that: include: A frame (1), a cargo plate (2) movably mounted on the frame (1), and a lifting unit (3) arranged in the frame (1), wherein the lifting unit (3) comprises: a driving motor (31) mounted on the frame (1), a plurality of screw rods (32) vertically arranged on the frame (1), and a transmission assembly (33) drivingly connected to the screw rods (32), wherein a nut seat (34) is correspondingly mounted on the screw rods (32), and the nut seat (34) passes through a lifting channel (11) provided on the frame (1) and is fixedly connected to the cargo plate (2), the power output end of the driving motor (31) is connected to any one of the screw rods (32), and the transmission assembly (33) drives the remaining screw rods (32) to operate synchronously, so that the nut seat (34) drives the cargo plate (2) to perform horizontal reciprocating lifting motion in the frame (1); and a universal wheel (8) is also provided at the bottom of the frame (1).

2. A lifting and transferring vehicle as claimed in claim 1, characterized in that: The transmission assembly (33) comprises: a transmission rod (331) and gears (332) fixed at both ends of the transmission rod (331); the gears (332) at both ends of the transmission rod (331) mesh with adjacent screw rods (32), and the rotation direction of the gears (332) is perpendicular to the rotation direction of the screw rod (32) in a plane, and the transmission rod (331) passes through a rotating mounting seat (12) provided in the frame (1).

3. A lifting and transferring vehicle as claimed in claim 1, characterized in that: A stopper (5) is also installed on the frame (1) and at the bottom of the cargo board (2).

4. A lifting and transferring vehicle as claimed in claim 2, characterized in that: The frame (1) is also provided with a pulling and unloading member (4), the pulling and unloading member (4) comprising: a rotating plate (41) arranged on the top surface of the cargo board (2), a pulley assembly installed on the frame (1), and a pull rope passing through the pulley assembly and fixedly connected to the rotating plate, the pulley assembly passing through the pull rope is used to control the rotation of the rotating plate (41).

5. A lifting and transferring vehicle as claimed in claim 4, characterized in that: A handle is provided on one end of the pull rope (43) away from the pulley assembly (42).

6. A lifting and transferring vehicle as claimed in claim 5, characterized in that: An anti-drop ring is also provided at one end of the pull rope (43) close to the handle (7).

7. The lifting and transferring vehicle according to claim 4, characterized in that: The width D of the rotating plate (41) is ≥ 2 / 3 of the width L of the cargo plate (2).

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