Overturn-preventing light crane

By designing a detachable reinforcing plate and rotating rod mechanism on the lightweight crane, the support area and friction are increased, solving the problem of the lightweight crane tipping over on complex ground and achieving higher stability and anti-tipping effect.

CN223804780UActive Publication Date: 2026-01-16ANHUI QIANGSHENG ROAD & BRIDGE ENG CO LTD
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Patent Information

Application Number
CN202520566551.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-01-16
Estimated Expiration
2035-03-28

AI Technical Summary

Technical Problem

Lightweight cranes are prone to tipping over under eccentric loads, soft ground, or dynamic impacts, indicating insufficient stability.

Method used

A flexible anti-tipping mechanism was designed, including a detachable reinforcing plate and a rotating rod, which improves stability and prevents tipping by increasing the support area and friction.

Benefits of technology

It effectively enhances the anti-overturning moment, adapts to complex terrain, improves the overall stability of the crane, and prevents overturning.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-overturning light crane, and belongs to the technical field of light cranes. The anti-overturning light crane comprises a movable base, the upper surface of the base is fixedly connected with a light crane body, three faces of the edge of the base are rotationally connected with rotating rods, the front ends of the rotating rods are in threaded connection with a detachable anti-overturning mechanism, and the anti-overturning mechanism comprises a reinforcing disc used for increasing the grounding area. The lower end of the reinforcing disc abuts against the ground. The overturning-preventing light crane solves the problem that an existing light crane is prone to overturning, when the overturning-preventing light crane is used, the rotating rod can be horizontally rotated to adjust the angle of the overturning-preventing mechanism, the screw 43 is driven by the rotating handle to move downwards and be connected with the reinforcing disc, the reinforcing disc is tightly attached to the ground so that the supporting area can be enlarged, and when necessary, an assembling piece can be additionally arranged in the bearing groove so that the supporting area can be enlarged. And the rubber cushion blocks are used for enhancing friction force, so that the crane is effectively prevented from overturning.
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Description

TECHNICAL FIELD

[0001] The utility model relates to light crane technical field, concretely is a kind of anti-overturning light crane. BACKGROUND

[0002] Light crane is mainly used for light load, low frequency hoisting task, due to its own light weight, small size, it is easy to appear insufficient stability during operation, even overturning problem.

[0003] The reason why light crane is easy to overturn is that the support area is small, which directly affects the anti-overturning torque, and smaller support area will significantly reduce stability, especially in the case of load eccentricity, soft ground or dynamic impact.

[0004] Therefore, we propose a kind of anti-overturning light crane, increase support area to improve stability and prevent overturning. INVENTION CONTENTS

[0005] The utility model aims at providing a kind of anti-overturning light crane, by setting three flexible rotation anti-overturning mechanism, support area can be increased as required, to prevent light crane overturning.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of anti-overturning light crane, including movable base, the base upper surface is fixedly connected with light crane, the base edge three sides are rotatably connected with rotating rod, the rotating rod front end is threadedly connected with detachable anti-overturning mechanism, the anti-overturning mechanism includes the reinforcing disc for increasing ground contact area, and the reinforcing disc lower end is in contact with ground.

[0007] As preferred technical scheme, the base lower surface is installed with universal wheel, and the base upper surface one side is fixedly connected with push rod.

[0008] As preferred technical scheme, the base edge three sides are fixedly installed with rotating part, and the rotating part is rotatably connected with rotating shaft, and the rotating shaft is fixedly connected with the rear end of rotating rod.

[0009] As preferred technical scheme, the base edge three sides are fixedly connected with first magnet.

[0010] As preferred technical scheme, the rotating rod front end is provided with a through thread groove, and the rotating rod front end side surface is fixedly connected with second magnet, which is magnetically connected with first magnet.

[0011] As preferred technical scheme, the anti-overturning mechanism further includes head, handlebar and screw rod.

[0012] As a preferred technical scheme, the handle is fixedly connected to the middle of the head, the head is fixedly connected to the screw rod at the lower end, the screw rod is threadedly connected to the threaded groove, and the screw rod is threadedly and detachably connected to the reinforcing disc at the lower end.

[0013] As a preferred technical scheme, the reinforcing disc is provided with the load-bearing groove at the upper end, and the reinforcing disc is fixedly connected to the rubber pad at the lower end.

[0014] Compared with the prior art, the utility model has the beneficial effects as follows:

[0015] (1) The anti-overturning light crane can effectively increase the supporting area, so that the overturning resisting moment is significantly enhanced.

[0016] (2) The anti-overturning light crane can automatically adapt to the complex ground such as inclination, pits and softness by the rotation ability of the rotating rod and the flexible lifting of the reinforcing disc, and the overturning caused by uneven ground is avoided.

[0017] (3) The anti-overturning light crane can further improve the overall stability by adding the counterweight in the load-bearing groove, so that the overturning is prevented.

[0018] (4) The anti-overturning light crane can further improve the overall stability by increasing the friction between the reinforcing disc and the ground through the rubber pad, so that the overturning is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic view of the overall utility model;

[0020] Figure 2 It is a schematic view of the rotation of the rotating rod of the utility model;

[0021] Figure 3 It is a schematic view of the overall reinforcement of the utility model;

[0022] Figure 4 It is a schematic view of the base structure of the utility model;

[0023] Figure 5 It is a schematic view of the rotating rod structure of the utility model;

[0024] Figure 6 It is a schematic view of the anti-overturning mechanism of the utility model;

[0025] Figure 7 It is a schematic view of the connection between the reinforcing disc and the screw rod of the utility model.

[0026] In the figure: 1, base; 11, universal wheel; 12, push rod; 13, rotating part; 131, rotating shaft; 14, first magnet; 2, crane; 3, rotating rod; 31, threaded groove; 32, second magnet; 4, anti-overturning mechanism; 41, head; 42, rotating handle; 43, screw rod; 44, reinforcing disc; 441, bearing groove; 442, rubber pad. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0028] Please refer to Figures 1-7 A kind of anti-overturning light crane, including movable base 1, light crane 2 is fixedly connected on the upper surface of base 1, the rotating rod 3 of three sides of the edge of base 1 is rotationally connected, the anti-overturning mechanism 4 of detachable is threadedly connected at the front end of rotating rod 3, the anti-overturning mechanism 4 includes reinforcing disc 44 for increasing ground area, reinforcing disc 44 lower end is in contact with ground. When using, the anti-overturning light crane when using, operator moves the equipment to the operating position by the universal wheel 11 and push rod 12 of base 1, can horizontally rotate rotating rod 3 and adjust the angle of anti-overturning mechanism 4, is driven screw rod 43 by rotating handle 42 and is connected with reinforcing disc 44, so that reinforcing disc is closely attached to ground to expand support area, when necessary, still can be added counterweight piece in bearing groove 441, and utilize rubber pad 442 to enhance friction, thereby effectively prevent crane overturning.

[0029] Further, the lower surface of the base 1 is provided with universal wheels 11, and one side of the upper surface of the base 1 is fixedly connected with a push rod 12. When in use, the universal wheels 11 and the push rod 12 can facilitate the movement of the crane 2 by the staff.

[0030] Further, the three sides of the edge of the base 1 are fixedly provided with rotating parts 13, the rotating parts 13 are rotationally connected with rotating shafts 131, and the rear ends of the rotating shafts 131 are fixedly connected with the rotating rods 3. When in use, the rotating shafts 131 rotationally arranged in the rotating parts 13 are fixedly connected with the rotating rods 3, so that the rotating rods 3 can be horizontally and arbitrarily rotated, thereby driving the anti-overturning mechanism 4 to rotate. The anti-overturning mechanism 4 can be adjusted according to the actual situation of the ground, for example, when one bottom surface is defective or inclined, the anti-overturning mechanism 4 can be rotated to contact the ground at the location, thereby improving the stability of the crane 2 and preventing the crane 2 from overturning due to uneven ground.

[0031] Furthermore, a first magnet 14 is fixedly connected to three sides of the edge of the base 1. When in use, the first magnet 14 is magnetically connected to the second magnet 32, so that the rotating rod 3 can be fixed to the edge of the base 1 when not in use, thus not affecting the normal operation of the whole.

[0032] Furthermore, the front end of the rotating rod 3 is provided with a through threaded groove 31, and a second magnet 32 ​​that is magnetically connected to the first magnet 14 is fixedly connected to the front end side surface of the rotating rod 3. In use, the threaded groove 31 at the front end of the rotating rod 3 can be used to install or remove the anti-tipping mechanism 4.

[0033] Furthermore, the anti-tipping mechanism 4 also includes a head 41, a handle 42, and a screw 43. In use, the anti-tipping mechanism 4 allows the operator to easily rotate the reinforcing plate 44 through the head 41 and the handle 42, so that the reinforcing plate 44 can come into contact with the ground.

[0034] Furthermore, a throttle 42 is fixedly connected to the middle of the head 41, and the lower end of the head 41 is fixedly connected to the screw 43. The screw 43 is threadedly connected to the threaded groove 31, and the lower end of the screw 43 is detachably threadedly connected to the reinforcing plate 44. In use, first insert the screw 43, which is not connected to the reinforcing plate 44, into the threaded groove 31. Then, rotate the throttle 42 downwards until the screw 43 extends out of the lower end of the threaded groove 31. The reinforcing plate 44 can then be threadedly installed onto the lower end of the screw 43. Then, continue to rotate the throttle 42 so that the screw 43 drives the reinforcing plate 44 to rotate until it contacts the ground, thereby increasing the overall contact area with the ground, improving the support area, and preventing the crane 2 from tipping over due to uneven ground or excessively heavy loads.

[0035] Furthermore, the upper end of the reinforcing plate 44 is provided with a load-bearing groove 441, and the lower end of the reinforcing plate 44 is fixedly connected with a rubber pad 442. In use, a counterweight can be placed inside the load-bearing groove 441 as needed to further improve stability. By setting the rubber pad 442, the friction between the reinforcing plate 44 and the ground can be increased, thereby further improving the overall stability and achieving the anti-tipping effect.

[0036] Working principle: the utility model discloses a kind of anti-overturning light-duty crane, when using, operating personnel pass through the universal wheel 11 of base 1 bottom and upper push rod 12 are pushed to target position, reach work point, crane enters anti-overturning deployment state, rotating rod 3 is horizontally rotated in rotating piece 13 by pivot 131, so that anti-overturning mechanism 4 can be freely adjusted angle, adapt to uneven ground or soft area, screw rod 43 is inserted into the thread groove 31 of rotating rod 3 front end, by rotating handle 42 drive screw rod 43 down, when screw rod 43 extends thread groove 31 lower end, it is screwed to the bottom of screw rod 43, continue to rotate handle 42 until reinforcing disc 44 and ground are closely combined, reinforcing disc 44 can significantly expand support area, distribute crane load, if additional stability is needed, it can be installed counterweight piece in the bearing groove 441 of reinforcing disc 44, and the rubber pad block 442 of solid disc 44 bottom increases friction coefficient, can further improve stability.

[0037] It is to be understood that the terminology used herein such as first and second, and the like, is merely intended to differentiate one entity or action from another without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the use of the term "including", "containing", or any other variant thereof, is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements is not required to comprise only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0038] While the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments can be changed, modified, replaced and varied in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An anti-overturning light-duty crane, comprising a movable base (1), a light-duty crane (2) fixedly connected to the upper surface of the base (1), characterized in that, three edges of the base (1) are rotatably connected with rotating rods (3); the front ends of the rotating rods (3) are threadedly connected with detachable anti-overturning mechanisms (4); the anti-overturning mechanisms (4) comprise reinforcing discs (44) for increasing the grounding area, and the lower ends of the reinforcing discs (44) are in abutting contact with the ground.

2. A lightweight anti-overturning crane according to claim 1, characterized in that: the lower surface of the base (1) is provided with universal wheels (11), and one side of the upper surface of the base (1) is fixedly connected with a push rod (12).

3. A lightweight anti-overturning crane according to claim 2, characterized in that: three edges of the base (1) are fixedly provided with rotating members (13), the rotating members (13) are rotatably connected with rotating shafts (131) inside, and the rear ends of the rotating shafts (131) are fixedly connected with the rotating rods (3).

4. A lightweight anti-overturning crane according to claim 3, characterized in that: the three edges of the base (1) are fixedly connected with first magnets (14).

5. A lightweight anti-overturning crane according to claim 4, characterized in that: the front end of the rotating rod (3) is provided with a through threaded groove (31), and the front end side surface of the rotating rod (3) is fixedly connected with a second magnet (32) magnetically connected with the first magnet (14).

6. A lightweight anti-overturning crane according to claim 1, characterized in that: the anti-overturning mechanism (4) further comprises a head (41), a rotating handle (42) and a screw rod (43).

7. A lightweight anti-overturning crane according to claim 6, characterized in that: the rotating handle (42) is fixedly connected to the middle of the head (41), the lower end of the head (41) is fixedly connected with the screw rod (43), the screw rod (43) is threadedly connected with the threaded groove (31), and the lower end of the screw rod (43) is threadedly detachably connected with the reinforcing disc (44).

8. A lightweight anti-overturning crane according to claim 1, characterized in that: the upper end of the reinforcing disc (44) is provided with a bearing groove (441), and the lower end of the reinforcing disc (44) is fixedly connected with a rubber pad (442).