A low-clearance hoist trolley

Abstract

The utility model provides a low clearance's hoist dolly relates to hoist dolly field, including mobile car, including frame, the mobile wheel of setting in the four around of frame bottom, the brake pad of setting in the mobile wheel surface to the weight box of setting in the top of frame for increasing its bearing stability, the utility model discloses through mobile car makes support unit and hoist unit can easily move between different positions, has improved the flexibility and coverage of operation greatly, through the cooperation of screw rod, screw sleeve and pillar in support unit, can accurately adjust the height of hoist unit, and through the adjustable connection between cross column and cross bar, and the cooperation of bolt and fastening hole, make hoist unit can carry out horizontal length adjustment, through horizontal and vertical position can be according to need to adjust quickly, thereby can adapt to the use of different space, and satisfy different height or length hoisting operation demand, not only convenient to use, and has reduced use cost.

Description

Technical Field

[0001] This utility model belongs to the field of crane trolleys, specifically a low headroom crane trolley. Background Technology

[0002] In modern industrial production and logistics transportation, crane trolleys are key material handling and assembly equipment. In particular, low-headroom crane trolleys are used in working environments with limited clearance, such as low-rise factories or underground warehouses, to facilitate the lifting of goods.

[0003] Most existing low-headroom lifting trolleys adopt a basic structure consisting of a crossbeam, a traveling trolley, and a lifting mechanism. This design requires the crossbeam to be securely fixed to the ceiling of the space to ensure the stability of the entire lifting system. Subsequently, the traveling trolley and lifting mechanism are connected to the crossbeam, and their close cooperation enables the lifting and handling of goods. However, in practical applications, because the crossbeam must be fixed to the ceiling, its position is strictly limited. When lifting goods in different areas of the space is required, operators must either disassemble the existing crossbeam and reinstall it in the required position, or install a new crossbeam at the required position. This process is time-consuming and labor-intensive, significantly increasing lifting costs.

[0004] In summary, this utility model provides a low-headroom lifting trolley to solve the above problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A low-headroom lifting trolley, including The mobile vehicle includes a frame, wheels disposed around the bottom of the frame, brake pads disposed on the surface of the wheels, and a weight-adding box disposed on the top of the frame to increase its load-bearing stability. The support unit includes a base column, a support column movably connected to the inner cavity of the base column, a first geared motor fixedly connected to the bottom of the inner cavity of the base column, a screw rod drivenly connected to the output shaft of the first geared motor, a threaded sleeve threadedly connected to the surface of the screw rod and fixedly connected to the top of the support column, a cross column movably connected to the top of the support column via a rotating shaft, a crossbar movably connected to the inner cavity of the cross column, a fastening hole opened on one side of the crossbar, a bolt threadedly connected to one side of the cross column, and a lifting unit disposed on the top of the cross column for lifting goods.

[0006] Furthermore, in this utility model, the lifting unit includes a fixed base, a winding roller movably connected to the inner cavity of the fixed base, a second reduction motor fixedly connected to one side of the fixed base and whose output shaft is drivenly connected to the winding roller, a wire rope disposed on the surface of the winding roller, and a hook disposed at one end of the wire rope.

[0007] Furthermore, in this utility model, the bottom of the fixed base is fixedly connected to the cross column, one end of the cross bar is fixedly connected to a support plate, and the support plate is movably connected to a limit wheel through a bearing. The wire rope is located in the inner cavity of the limit wheel and is slidably connected to the inner cavity of the limit wheel.

[0008] Furthermore, in this utility model, the bottom of the base column is fixedly connected to the top of the frame, the inner cavity of the weight-adding box contains a weight-adding block, and one end of the bolt extends into the inner cavity of the fastening hole and is movably connected to the inner cavity of the fastening hole.

[0009] Furthermore, in this utility model, a connecting plate is fixedly connected to the bottom of the horizontal column, and a support rod is movably connected to the surface of the support column via a rotating shaft. One end of the support rod is movably connected to the connecting plate via a pin.

[0010] Furthermore, in this utility model, the top of the screw extends into the inner cavity of the support column and is movably connected to the inner cavity of the support column. A limiting block is fixedly connected to the surface of the screw sleeve. A limiting groove is opened on one side of the inner cavity of the bottom column. The limiting block is located in the inner cavity of the limiting groove and is slidably connected to the inner cavity of the limiting groove.

[0011] Beneficial Effects: This utility model has the following beneficial effects: Through the design of the mobile vehicle, the support unit and the lifting unit can be easily moved between different positions, greatly improving the flexibility and coverage of the operation. Through the cooperation of the screw, sleeve and column in the support unit, the height of the lifting unit can be precisely adjusted. Furthermore, through the adjustable connection between the cross column and the crossbar, and the cooperation of the bolt and the fastening hole, the horizontal length of the lifting unit can be adjusted. Both the horizontal and vertical positions can be quickly adjusted as needed, thus adapting to the use in different spaces and meeting the lifting operation requirements of different heights or lengths. It is not only convenient to use, but also reduces the cost of use. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the connection structure of the support column, cross column and crossbar of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the base column of this utility model; Figure 4 This is a schematic diagram of the lifting unit structure of this utility model.

[0013] In the diagram: 100, mobile vehicle; 110, frame; 120, moving wheel; 130, weight-adding box; 200, support unit; 210, base column; 211, limiting groove; 220, support column; 221, support rod; 230, first geared motor; 240, screw; 250, screw sleeve; 251, limiting block; 260, cross column; 261, connecting plate; 270, cross bar; 280, fastening hole; 290, bolt; 300, lifting unit; 310, fixed seat; 320, winding roller; 330, second geared motor; 340, wire rope; 350, limiting wheel; 360, hook. Detailed Implementation

[0014] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model. Example

[0015] like Figure 1-4 As shown, this is the first embodiment of the present invention, which provides a low-headroom lifting trolley, including... The mobile vehicle 100 includes a frame 110, mobile wheels 120 disposed around the bottom of the frame 110, brake pads disposed on the surface of the mobile wheels 120, and a weight-adding box 130 disposed on the top of the frame 110 to increase its load-bearing stability. The support unit 200 includes a base column 210, a support column 220 movably connected to the inner cavity of the base column 210, a first geared motor 230 fixedly connected to the bottom of the inner cavity of the base column 210, a screw 240 drivenly connected to the output shaft of the first geared motor 230, a threaded sleeve 250 threadedly connected to the surface of the screw 240 and fixedly connected to the top of the support column 220, a cross column 260 movably connected to the top of the support column 220 via a rotating shaft, a cross bar 270 movably connected to the inner cavity of the cross column 260, a fastening hole 280 opened on one side of the cross bar 270, a bolt 290 threadedly connected to one side of the cross column 260, and a lifting unit 300 disposed on the top of the cross column 260 for lifting goods.

[0016] like Figure 1-4As shown, the support unit 200 and the lifting unit 300 are moved to the working position by the moving wheels 120 of the mobile vehicle 100, and the brake pads are pressed to fix the position. This allows the support unit 200 and the lifting unit 300 to move easily between different positions, greatly improving the flexibility and coverage of the operation. No subsequent disassembly or assembly work is required. Through the cooperation of the screw 240, the screw sleeve 250 and the support column 220 in the support unit 200, the height of the lifting unit 300 can be precisely adjusted. Furthermore, through the adjustable connection between the cross column 260 and the crossbar 270, and the cooperation of the bolt 290 and the fastening hole 280, the horizontal length of the lifting unit 300 can be adjusted. The horizontal and vertical positions can be quickly adjusted as needed, thus adapting to the use of different spaces and meeting the lifting operation requirements of different heights or lengths. This not only makes it convenient to use but also reduces the cost of use. Example

[0017] Reference Figure 1 , 2 4 and 5 represent the second embodiment of this utility model, which is based on the previous embodiment.

[0018] In this embodiment, the lifting unit 300 includes a fixed base 310, a winding roller 320 movably connected to the inner cavity of the fixed base 310, a second reduction motor 330 fixedly connected to one side of the fixed base 310 and whose output shaft is drivenly connected to the winding roller 320, a wire rope 340 disposed on the surface of the winding roller 320, and a hook 360 disposed at one end of the wire rope 340.

[0019] The bottom of the fixed base 310 is fixedly connected to the cross column 260, and one end of the cross bar 270 is fixedly connected to the support plate. The support plate is movably connected to the limit wheel 350 through the bearing. The wire rope 340 is located in the inner cavity of the limit wheel 350 and is slidably connected to the inner cavity of the limit wheel 350.

[0020] like Figure 1 , 2 As shown in Figure 4, the fixed base 310 provides a stable mounting platform for the winding roller 320 and the second reduction motor 330, ensuring stability during lifting operations. The second reduction motor 330 provides power to the winding roller 320, and the winding roller 320 drives the wire rope 340 on its surface to wind and release, and cooperates with the hook 360 to realize the lifting function of the goods. The main purpose of setting the limit wheel 350 is to guide and limit the wire rope 340, ensuring that it remains stable during the lifting process and does not deviate from the predetermined trajectory. Example

[0021] Reference Figure 1-3 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0022] In this embodiment, the bottom of the base post 210 is fixedly connected to the top of the frame 110, the inner cavity of the weight box 130 contains a weight block, and one end of the bolt 290 extends into the inner cavity of the fastening hole 280 and is movably connected to the inner cavity of the fastening hole 280.

[0023] A connecting plate 261 is fixedly connected to the bottom of the horizontal column 260, and a support rod 221 is movably connected to the surface of the support column 220 through a rotating shaft. One end of the support rod 221 is movably connected to the connecting plate 261 through a pin.

[0024] The top of the screw 240 extends into the inner cavity of the support column 220 and is movably connected to the inner cavity of the support column 220. The surface of the screw sleeve 250 is fixedly connected to the limiting block 251. A limiting groove 211 is opened on one side of the inner cavity of the bottom column 210. The limiting block 251 is located in the inner cavity of the limiting groove 211 and is slidably connected to the inner cavity of the limiting groove 211.

[0025] like Figure 1-3 As shown, by placing weight-adding blocks inside the weight-adding box 130, additional weight is added, improving the load-bearing capacity and stability of the frame 110. Especially when lifting heavy cargo, it can effectively prevent swaying or tilting due to insufficient weight. The bolt 290 is movably connected to the fastening hole 280, ensuring the firmness of the connection between the cross column 260 and the cross bar 270 after adjustment. The connection between the support rod 221 and the connecting plate 261 makes the support column 220 and the cross column 260 triangularly stable, ensuring their stability when supported. The limit block 251 is slidably connected to the limit groove 211 in the inner cavity of the bottom column 210, restricting the rotation of the screw sleeve 250, ensuring the stability of the screw sleeve 250 driving the support column 220 during the lifting process.

[0026] In use, the moving wheels 120 of the moving vehicle 100 first move the frame 110, support unit 200 and lifting unit 300 to the working position, and then press the brake pads to fix the position. This allows the support unit 200 and lifting unit 300 to move easily between different positions, greatly improving the flexibility and coverage of the operation. No subsequent disassembly or assembly work is required. During movement or later lifting operations, personnel can add weight blocks inside the weight box 130 to increase the load-bearing capacity of the frame 110 and ensure the stability during later lifting operations and movement. When the height needs to be adjusted after moving to the working position, the first reduction motor 230 is started to drive the screw 240 to rotate. The sleeve 250 is threaded onto the screw 240, and therefore moves up and down as the screw 240 rotates, causing the support column 220 and the cross column 260 to rise and fall together, thus achieving height adjustment of the lifting unit 300. If horizontal length adjustment is required, the position of the cross bar 270 within the cross column 260 can be adjusted by loosening the bolt 290, thereby changing the horizontal position of the lifting unit 300. After adjustment, the bolt 290 is tightened to fix the cross bar 270 in the desired position. Both horizontal and vertical positions can be quickly adjusted as needed, adapting to different spaces and meeting the lifting operation requirements of different heights or lengths. Not only is it easy to use, but it also greatly reduces the cost of use. When lifting operations are carried out, the second reduction motor 330 is started to drive the winding roller 320 to rotate. The wire rope 340 is wound around the winding roller 320 and rises and falls with the rotation of the winding roller 320. The hook 360 is connected to one end of the wire rope 340 and is used to lift the goods. When the goods are lifted by the hook 360 and the wire rope 340, the limit wheel 350 ensures that the wire rope 340 remains stable during the lifting process. After the goods are lifted, the lifting unit 300 is moved to the destination by the moving wheel 120 of the moving vehicle 100, and then the goods are put down, thus completing the entire lifting and handling process.

[0027] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A low-headroom lifting trolley, characterized in that: The system includes a mobile vehicle (100), comprising a frame (110), wheels (120) disposed around the bottom of the frame (110), brake pads disposed on the surface of the wheels (120), and a weight-adding box (130) disposed on the top of the frame (110) to increase its load-bearing stability; and a support unit (200), comprising a base column (210), a support column (220) movably connected to the inner cavity of the base column (210), a first geared motor (230) fixedly connected to the bottom of the inner cavity of the base column (210), and a transmission connection to the first geared motor (230). 0) The output shaft has a screw (240), a screw sleeve (250) threaded to the surface of the screw (240) and fixedly connected to the top of the support column (220), a cross column (260) movably connected to the top of the support column (220) via a rotating shaft, a cross bar (270) movably connected to the inner cavity of the cross column (260), a fastening hole (280) opened on one side of the cross bar (270), a bolt (290) threaded to one side of the cross column (260), and a lifting unit (300) set on the top of the cross column (260) for lifting goods.

2. The low-headroom lifting trolley as described in claim 1, characterized in that: The lifting unit (300) includes a fixed base (310), a winding roller (320) movably connected to the inner cavity of the fixed base (310), a second reduction motor (330) fixedly connected to one side of the fixed base (310) and whose output shaft is drivenly connected to the winding roller (320), a wire rope (340) disposed on the surface of the winding roller (320), and a hook (360) disposed at one end of the wire rope (340).

3. The low-headroom lifting trolley as described in claim 2, characterized in that: The bottom of the fixed seat (310) is fixedly connected to the cross column (260), and one end of the cross bar (270) is fixedly connected to a support plate. The support plate is movably connected to a limit wheel (350) through a bearing. The wire rope (340) is located in the inner cavity of the limit wheel (350) and is slidably connected to the inner cavity of the limit wheel (350).

4. The low-headroom lifting trolley as described in claim 1, characterized in that: The bottom of the base column (210) is fixedly connected to the top of the frame (110), the inner cavity of the weight box (130) contains a weight block, and one end of the bolt (290) extends into the inner cavity of the fastening hole (280) and is movably connected to the inner cavity of the fastening hole (280).

5. The low-headroom lifting trolley as described in claim 1, characterized in that: The bottom of the crossbar (260) is fixedly connected to a connecting plate (261), and the surface of the support column (220) is movably connected to a support rod (221) via a rotating shaft. One end of the support rod (221) is movably connected to the connecting plate (261) via a pin.

6. The low-headroom lifting trolley as described in claim 1, characterized in that: The top of the screw (240) extends into the inner cavity of the support column (220) and is movably connected to the inner cavity of the support column (220). A limiting block (251) is fixedly connected to the surface of the screw sleeve (250). A limiting groove (211) is opened on one side of the inner cavity of the bottom column (210). The limiting block (251) is located in the inner cavity of the limiting groove (211) and is slidably connected to the inner cavity of the limiting groove (211).

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