Protective type hanger assembly

Abstract

The utility model discloses a protective type is connected device belongs to hoisting structure technical field, including bottom frame, be provided with a plurality of first unloading buckle on bottom frame, be provided with support mechanism on bottom frame, a plurality of first unloading buckle are connected with top frame through a plurality of first ring eye type sling, be provided with a plurality of second unloading buckle on top frame, all be provided with second ring eye type sling on a plurality of second unloading buckle, can reduce the high friction contact of steel wire rope when under stress, in the process of hoisting, shaking or falling position, easy to scratch with the surface of vehicle, cause the phenomenon of the generation of the body painting damage even structure indentation, improve the support stability, alleviate the risk of the spark of steel wire rope when contact friction with the bottom metal parts of vehicle.

Description

Technical Field

[0001] This utility model belongs to the field of hoisting structure technology, specifically a protective hoisting device. Background Technology

[0002] Engineering vehicles (such as sightseeing vehicles, electric patrol vehicles, and transport vehicles) often require transfer, maintenance, or loading / unloading operations due to their complex operating environments. In some special circumstances, such as when vehicles need to be hoisted from one location to a transport platform, maintenance bay, or elevated work station, hoisting is an efficient, space-saving method that avoids secondary damage. Especially in situations with limited space, insufficient ground load-bearing capacity, or frequent temporary hoisting operations, hoisting has become a crucial part of the daily operation and maintenance of engineering vehicles.

[0003] Chinese invention patent CN116281558A discloses a lifting structure and method for vehicle hoisting. The structure includes a hook and a hoisting mechanism. The hoisting mechanism comprises: a balance beam, which remains horizontal and has connecting plates at both ends; two balance steel ropes, passing through the connecting plates and connected to the hook, to achieve force distribution at the lifting point and structural balance; a connecting seat, which can be fixedly connected to the vehicle body for transmitting the hoisting load; and two connecting steel ropes, respectively connecting the connecting plates and the two ends of the connecting seat. This structure, through a dual steel rope system combined with a balance beam, achieves force distribution and stable distribution of the lifting load, effectively improving load-bearing capacity. Simultaneously, the connecting seat structure facilitates adaptation to different vehicle models, improving the structure's versatility and hoisting efficiency.

[0004] However, the wire rope connection structure used in this patent has significant drawbacks in the lifting of engineering vehicles (especially sightseeing vehicles and electric vehicles with fiberglass shells or lightweight aluminum alloy structures). Firstly, the wire rope is prone to high friction under stress, easily scraping against the vehicle surface during lifting, shaking, or lowering, leading to damage to the paint or even structural indentations. Secondly, the wire rope poses a risk of generating sparks when it comes into contact with and rubs against the metal components at the bottom of the vehicle, especially in flammable and explosive environments such as electric vehicles and battery-powered vehicles, posing a safety hazard. Therefore, while traditional wire rope lifting structures possess good load-bearing performance, their applicability, safety, and protective capabilities in precision vehicle lifting still have considerable room for improvement. Utility Model Content

[0005] The purpose of this invention is to provide a protective lifting device to solve at least one aspect of the problems and defects mentioned in the background art.

[0006] A protective lifting device is provided, including a bottom frame, a plurality of first shackles on the bottom frame, a support mechanism on the bottom frame, the plurality of first shackles being connected to a top frame by a plurality of first eyelet-type slings, and a plurality of second shackles on the top frame, each of the plurality of second shackles being provided with a second eyelet-type sling.

[0007] Furthermore, the support mechanism includes two base support plates, which are disposed on one side of the bottom frame. Two rear wheel support plates are disposed on the side of the bottom frame away from the base support plates. The base support plates are disposed on one side of the bottom frame, usually close to the front wheels of the vehicle, to support the bottom structure at the front of the vehicle and form a front limiting reference. The rear wheel support plates are disposed on the side of the bottom frame away from the base support plates, usually close to the rear wheels of the vehicle. The rear wheel support plates support and position the rear wheel area, and in particular, mechanically engage with the rear wheel spring steel plates of the vehicle to prevent longitudinal sliding of the vehicle and to prevent the vehicle from sliding forward and backward, thereby improving the safety and stability during hoisting.

[0008] Furthermore, both base support plates are provided with support ribs on both sides. The support ribs are usually triangular steel plates and are used as stiffening structures to enhance the mechanical strength of the base support plates.

[0009] Furthermore, each of the rear wheel support plates is provided with a slot, which is opened into the notch on the rear wheel support plate. The slot corresponds to the shape and size of the rear wheel spring steel plate of the vehicle, and can lock the rear wheel spring steel plate of the vehicle to prevent the vehicle from sliding back and forth during the hoisting process, thus playing a role in longitudinal limiting.

[0010] Furthermore, each of the base support plates is equipped with rubber pads, which can prevent damage or indentations caused by collisions between the vehicle body base and the base support plate and the bottom structure of the vehicle.

[0011] Furthermore, each of the rear wheel support plates is provided with a rubber pad, which can prevent damage or indentation between the rear wheel support plate and the rear wheel structure.

[0012] Furthermore, the first and second loop-shaped slings are loop-shaped slings made of cotton wadding material. The surface of the cotton wadding material is soft and can effectively fit the fiberglass surface of the vehicle body. The cotton wadding slings have no metal material and will not generate sparks due to friction. Compared with steel wire rope, the cotton wadding slings have higher flexibility.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] The first and second eyelet slings have good flexibility and surface fit, replacing the traditional steel wire rope for vehicle connection. This reduces scratches and hard contact, and reduces the high friction contact that steel wire ropes are prone to when under stress. During lifting, shaking, or lowering, steel wire ropes are more likely to scratch the vehicle surface, leading to damage to the paint or even structural indentations.

[0015] The top and bottom frames are detachably connected by eyelet slings, which facilitates construction layout and on-site assembly. During hoisting, the structural stress is clearly defined and evenly distributed. The support mechanism is used to make soft contact with the bottom structure of the vehicle, which improves the stability of the support and reduces the risk of sparks when the wire rope comes into contact with the metal parts at the bottom of the vehicle. Attached Figure Description

[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of a protective lifting device;

[0018] Figure 2 A schematic diagram of the base support plate structure provided by this utility model;

[0019] Figure 3 A schematic diagram of the rear wheel support plate structure provided by this utility model;

[0020] Figure 4 A schematic diagram of the support mechanism provided by this utility model.

[0021] In the diagram: 1. Bottom frame; 100. First shackle; 101. Second shackle; 2. Support mechanism; 21. Base support plate; 22. Rear wheel support plate; 221. Groove; 23. Support rib plate; 3. First eyelet type sling; 4. Top frame; 5. Second eyelet type sling; 6. Rubber pad block. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the application is described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application without inventive effort are within the scope of protection of this application.

[0023] Obviously, the accompanying drawings described below are merely some examples or embodiments of this application. Those skilled in the art can apply this application to other similar scenarios based on these drawings without any inventive effort. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, any changes to design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as insufficient disclosure of the content of this application.

[0024] However, there may be instances where unnecessary detailed descriptions are omitted. For example, detailed descriptions of well-known matters or repetitive descriptions of essentially the same structures may be omitted. This is to avoid unnecessarily lengthy descriptions and to facilitate understanding by those skilled in the art. Furthermore, the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand this application and are not intended to limit the subject matter of the claims.

[0025] Please see Figures 1-4 As shown in the embodiment of this utility model, a protective lifting device includes a bottom frame 1, which is used to support the vehicle body and connect to the top lifting system. The bottom frame 1 is provided with a plurality of first shackles 100, which are connected to the first eyelet type slings 3. The bottom frame 1 is provided with a support mechanism 2, which is mainly used to dock and position with the bottom of the vehicle (such as a spring steel plate) to play the role of limiting and stabilizing support. The plurality of first shackles 100 are connected to a top frame 4 through a plurality of first eyelet type slings 3. The top frame 4 is provided with a plurality of second shackles 101, and each of the plurality of second shackles 101 is provided with a second eyelet type sling 5.

[0026] The first eyelet sling 3 connects the bottom frame 1 and the top frame 4; the second eyelet sling 5 connects the top frame and the external crane. The first eyelet sling 3 and the second eyelet sling 5 are made of high-strength cotton wadding material, which can avoid scratching the fiberglass vehicle body. Several first shackles 100 are used to connect the slings to the frame to ensure the reliability of the hoisting connection.

[0027] Both the first loop-type sling 3 and the second loop-type sling 5 are made of flexible, high-strength cotton wadding material. Compared with traditional steel wire ropes, they do not contain metal. During the lifting process, they can conform to the vehicle surface without causing scratches or paint damage. Since they do not contain metal, they will not generate sparks when in contact with the metal structure at the bottom of the vehicle, effectively reducing the risk of fire or explosion in scenarios such as electric vehicles and lithium-ion electric vehicles. The first shackle 100 and the second shackle 101 are used to connect the first loop-type sling 3 to the bottom frame 1 and the top frame 4 respectively, so that the lifting connection process can be quickly installed and removed. At the same time, it provides a reliable mechanical connection structure. This method is safer than directly binding steel wire ropes, the force is clear, and it avoids lifting deviations caused by slippage, twisting, etc. during the lifting process.

[0028] The present invention achieves flexible support inside the vehicle body through the first eyelet-type sling 3 between the bottom frame 1 and the top frame 4, while the top frame 4 is connected to the external crane through the second eyelet-type sling 5, which effectively adapts to vehicle structural deformation or slight misalignment, and ensures hoisting stability and vehicle body safety.

[0029] In one embodiment, see Figure 1 , Figure 2 and Figure 3 As shown, the support mechanism 2 includes two base support plates 21, which are disposed on one side of the bottom frame 1, and two rear wheel support plates 22 are disposed on the side of the bottom frame 1 away from the base support plates 21.

[0030] The base support plate 21 is located on one side of the bottom frame 1, usually close to the front wheel of the vehicle, supporting the bottom structure at the front of the vehicle and forming a front limiting reference. The rear wheel support plate 22 is located on the side of the bottom frame 1 away from the base support plate 21, usually close to the rear wheel of the vehicle. The rear wheel support plate 22 supports and positions the rear wheel area, especially mechanically engaging with the rear wheel spring steel plate of the vehicle to prevent longitudinal sliding of the vehicle and prevent the vehicle from sliding forward and backward, thereby improving the safety and stability during hoisting.

[0031] In one embodiment, see Figure 2 and Figure 4 As shown, both sides of the two base support plates 21 are provided with support ribs 23. The base support plates 21 are key support components in the protective hoisting device that come into contact with the vehicle chassis (such as under the front wheels). The support ribs 23 are provided on both sides of each base support plate 21. They are usually triangular or L-shaped steel plates and are stiffening structures used to enhance the mechanical strength of the base support plates 21.

[0032] In one embodiment, see Figure 1 , Figure 2 and Figure 3As shown, each of the rear wheel support plates 22 is provided with a slot 221; the rear wheel support plate 22 is located on the side of the bottom frame 1 near the rear of the vehicle, and is used to support and position the rear wheel area. The slot 221 is a notch opened on the rear wheel support plate 22. The slot 221 corresponds to the shape and size of the rear wheel spring steel plate of the vehicle, and can lock the rear wheel spring steel plate of the vehicle to prevent the vehicle from sliding back and forth during the hoisting process, and play a role in longitudinal limiting.

[0033] In one embodiment, see Figure 2 , Figure 3 and Figure 4 As shown, rubber pads 6 are provided on the base support plate 21. The rubber pads 6 are made of nitrile rubber. During hoisting, if the vehicle body base and the base support plate 21 are in direct contact, the rigidity of the base support plate 21 may cause indentations, scratches or even structural damage to the surface of the vehicle body base. The rubber pads 6 can prevent the vehicle body base from colliding with the base support plate 21 and causing damage or indentations.

[0034] In one embodiment, see Figure 3 and Figure 4 As shown, each rear wheel support plate 22 is equipped with a rubber pad 6, which is made of nitrile rubber. During hoisting, if the vehicle body base and the base support plate 21 are in direct contact, the rigidity of the base support plate 21 may cause indentations, scratches, or even structural damage to the surface of the vehicle body base. The rubber pad 6 can prevent damage or indentations between the rear wheel support plate 22 and the rear wheel structure.

[0035] In one embodiment, see Figure 1 , Figure 2 and Figure 3 As shown, the first eyelet sling 3 and the second eyelet sling 5 are eyelet slings made of cotton wadding material. The first eyelet sling 3 and the second eyelet sling 5 are flexible load-bearing components, mainly used to connect the structure to the lifting point evenly during the lifting process, and to protect the lifted object (such as the vehicle body). The cotton wadding material has a soft surface and can effectively fit the fiberglass surface of the vehicle body. The cotton wadding sling has no metal material and will not generate sparks due to friction. Compared with steel wire rope, the cotton wadding sling has higher flexibility.

[0036] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A protective lifting device, comprising a bottom frame (1), wherein a plurality of first shackles (100) are provided on the bottom frame (1), characterized in that, The bottom frame (1) is provided with a support mechanism (2), and a number of first shackles (100) are connected to the top frame (4) by a number of first eyelet slings (3). The top frame (4) is provided with a number of second shackles (101), and each of the number of second shackles (101) is provided with a second eyelet sling (5).

2. The protective lifting device according to claim 1, characterized in that, The support mechanism (2) includes two base support plates (21), which are arranged on one side of the bottom frame (1). Two rear wheel support plates (22) are arranged on the side of the bottom frame (1) away from the base support plates (21).

3. The protective lifting device according to claim 2, characterized in that, Both base support plates (21) are provided with support ribs (23) on both sides.

4. A protective hoisting device according to claim 2, characterized in that, The rear wheel support plate (22) is provided with a slot (221).

5. A protective lifting device according to claim 3, characterized in that, Each of the base support plates (21) is provided with rubber pads (6).

6. A protective hoisting device according to claim 4, characterized in that, Each of the rear wheel support plates (22) is provided with a rubber pad (6).

7. A protective lifting device according to claim 1, characterized in that, The first loop-type sling (3) and the second loop-type sling (5) are loop-type slings made of cotton wadding material.

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