A safe lifting device for automobile maintenance

Abstract

The utility model relates to the technical field of automobile maintenance equipment, and disclose a kind of lifting equipment for safety type automobile maintenance, two columns further include: setting in the swing arm of column lifting end;Debugging component, the debugging component is set between two columns;The utility model is by being provided with connecting component in swing arm end portion, the V-shaped section contact plate in its supporting piece can be adjusted angle when contacting with vehicle chassis crossbeam, realize and the multiple point contact of crossbeam and vehicle side, effectively increase contact area and friction, fundamentally effectively prevent the risk of transverse slip in the lifting process or maintenance operation of vehicle;In addition, by the abutting piece of supporting piece movement linkage, when supporting piece rises and presses against chassis crossbeam, by pulling rope will drive abutting plate to stretch out outward, so that it is tightly against the sidewall of automobile tire, this design forms double insurance mechanism of chassis support and tire limiting, can effectively guarantee the stability when vehicle lifting.

Description

Technical Field

[0001] This utility model relates to the field of automotive repair equipment technology, specifically a safe lifting device for automotive repair. Background Technology

[0002] In the automotive repair industry, column lifts are widely used basic tools. Traditional lifts typically consist of two independent columns. After the vehicle is driven between the two columns, the operator manually adjusts the two outriggers on each column, rotating them around the hinge point to the underside of the vehicle chassis. The support pads at the top of the outriggers then contact a dedicated lifting beam under the vehicle. Subsequently, a hydraulic or electric drive system simultaneously lifts all four outriggers, raising the vehicle to the desired height.

[0003] However, this traditional lifting method has significant safety hazards and operational inconveniences: its stability relies entirely on the precise alignment of four distributed support points with the vehicle's lifting beam. In practice, the positioning and alignment of the outriggers depend entirely on the operator's experience and visual judgment. Due to the poor visibility of the vehicle chassis, it is difficult for the operator to accurately ensure that each support pad is in the ideal position in the center of the lifting beam. If any support point deviates from its position or has an improper contact angle with the beam, it will cause a change in the lifting arm, resulting in a potential risk of the vehicle tilting after being lifted. Utility Model Content

[0004] The purpose of this invention is to provide a safe lifting device for automobile repair to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a safe lifting device for automobile repair, comprising two columns, and further comprising: a swing arm disposed at the lifting end of the columns; A debugging component is disposed between two columns; A connecting assembly disposed between the ends of two swing arms, comprising a support member that contacts the vehicle chassis crossbeam and an abutment member that moves with the support frame.

[0006] Preferably, the aforementioned.

[0007] Preferably, the support member includes: A connecting plate, which is movable at the end of the swing arm via a rotating shaft; The contact plate is mounted above the connecting plate via a hinge seat. The side cross-section of the contact plate is V-shaped, which is used to automatically change angle when in contact with the vehicle chassis and make multi-point contact with the vehicle chassis at the same time. A contact pad, which is bonded to the surface of the contact plate, is made of rubber.

[0008] Preferably, the support member further includes: A spring is fixed above the connecting plate, with its upper end fixedly connected to the contact plate, and is used to press one end of the contact plate upward against the plate.

[0009] Preferably, the support member further includes: The guide grooves are of two types, and are respectively opened on opposite sides of the two connecting plates; The guide bar has two parts, which are fixed to opposite sides of the two connecting plates respectively. The opposite sides of the two guide bars are embedded and slid into the guide groove to keep the contact plate in a lateral position when the swing arm angle expands or contracts.

[0010] Preferably, the abutment includes: Abutting plate, which is inserted horizontally into the connecting plate, has an exposed end with a bend design for contacting the car tire; A pull rope is fixed to the lower part of the contact plate, and its other end passes through the connecting plate and is fixedly connected to the tail of the abutment plate.

[0011] Preferably, the abutment further includes: A tension spring is fixed inside the connecting plate, and its other end is fixedly connected to the abutment plate.

[0012] Preferably, the debugging component includes; The guide rail is located between the two columns below, and its edge is connected to the ground by screws. The inside of the guide rail is fixed to the columns by a sliding block. Support pad, which is disposed on the surface of the guide rail.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, by setting a connecting component at the end of the swing arm, allows the V-shaped cross-section contact plate in its support component to adjust its angle automatically when in contact with the vehicle chassis crossbeam, achieving multi-point contact with the crossbeam and the side of the vehicle, effectively increasing the contact area and friction, and fundamentally preventing the risk of lateral slippage of the vehicle during lifting or maintenance operations. In addition, through the abutment component that moves in conjunction with the support component, when the support component rises and presses against the chassis crossbeam, the abutment plate will be driven to extend outward by the pull rope, so that it presses tightly against the sidewall of the car tire. This design forms a double insurance mechanism of chassis support and tire limiting, which can effectively ensure the stability of the vehicle when it is lifted. Attached Figure Description

[0014] Figure 1 A schematic diagram of a preferred embodiment of the safe car repair lifting device provided by this utility model; Figure 2 A schematic diagram of the structure of the column and swing arm provided by this utility model; Figure 3 A top-view diagram showing the structural disassembly of the support component provided by this utility model; Figure 4 A partial bottom view of the support component provided by this utility model; Figure 5 Provided by this utility model Figure 4 Enlarged structural diagram at point A; Figure 6 A schematic diagram of the structure of the abutment member provided by this utility model.

[0015] In the diagram: 100, column; 110, swing arm; 200, support pad; 210, guide rail; 300, connecting assembly; 310, connecting plate; 311, guide bar; 312, contact plate; 313, contact pad; 314, spring; 315, guide groove; 320, abutment plate; 321, tension spring; 322, pull rope. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-6 As shown, a safe type of lifting device for automobile repair includes two columns 100, and also includes a swing arm 110 disposed at the lifting end of the columns 100; The aforementioned column 100 is a chain-driven column 100 type lifting machine. Its assembly mainly consists of a rigid column 100 shell, a drive motor, a high-strength lifting chain, and a sprocket system. Its core lifting mechanism is that after the drive motor starts, its output shaft drives the drive sprocket to rotate through a reduction mechanism. The drive sprocket meshes with and pulls a closed-loop high-strength lifting chain. One end of the chain is fixed to the lifting bracket inside the column 100 through a connector, and the swing arm 110 is hinged to this lifting bracket through a heavy-duty pin. When the motor drives the sprocket to rotate, the chain will wind or release, thereby strongly pulling the lifting bracket to rise or fall smoothly along the rigid guide rail 210 on the inner side of the column 100. Finally, the rotational power of the motor is converted into the linear lifting motion of the bracket and the swing arm 110 hinged to it, so that the swing arm 110 moves upward with its hinge point as the fulcrum, overcoming and lifting the weight of the vehicle acting on its end. The debugging component is located between the two columns 100. The debugging components include; Guide rail 210 is located between the two columns 100 below, and its edge is connected to the ground by screws. The inside of guide rail 210 is fixed to the column 100 by a slide block. Support pad 200, the support pad 200 is disposed on the surface of guide rail 210; When the vehicle enters the lifting range, the support pad 200 will be pre-pressed. The support pad 200 is set above the guide rail 210 to protect the guide rail 210. When the vehicle needs maintenance, first transfer the vehicle to the guide rail 210 so that the vehicle lifting point is within the adjustable range of the swing arm 110. Then the staff can adjust the distance between the two swing arms 110 and the support range. After the adjustment is completed, the swing arms 110 are locked. Then, the guide rail 210 controls the two slides to drive the two columns 100 to move relative to each other, so that the support component at the end of the swing arm 110 is under the vehicle. The connecting assembly 300 is disposed between the ends of the two swing arms 110 and includes a support member that contacts the vehicle chassis crossbeam and an abutment member that moves with the support frame.

[0018] like Figure 3 , Figure 4 and Figure 6 As shown, the support component includes: Connecting plate 310, which is movable at the end of swing arm 110 via a rotating shaft; Contact plate 312 is mounted above connecting plate 310 via a hinge seat. The side cross-section of contact plate 312 is V-shaped, which is used to automatically change angle when in contact with vehicle chassis and make multi-point contact with vehicle chassis at the same time. Contact pad 313 is bonded to the surface of contact plate 312 and is made of rubber; the support component also includes: Spring 314 is fixed above the connecting plate 310, and its upper end is fixedly connected to the contact plate 312, which is used to abut one end of the contact plate 312 upward. Then the column 100 can open the drive structure to control the rise of the swing arm 110. As the swing arm 110 rises, when the V-shaped surface of the contact plate 312 begins to contact the lifting beam of the vehicle chassis, under the action of the vehicle weight, the contact plate 312 will automatically rotate around its hinge seat to adjust the angle until the two inclined surfaces of its V-groove are simultaneously in close contact with the surface of the beam and the side fender of the vehicle, thus forming a stable and reliable multi-point contact, effectively improving the friction between the contact plate and the vehicle and effectively preventing lateral slippage. The support components also include: There are two guide grooves 315, which are respectively opened on the opposite side of the two connecting plates 310. Guide bar 311, two guide bars 311 are provided and fixed to opposite sides of two connecting plates 310 respectively. The opposite sides of the two guide bars 311 are embedded and slid into the guide groove 315 to keep the contact plate 312 in a lateral position when the swing arm 110 expands or contracts. To ensure that the contact plates 312 on both sides always maintain the correct lateral working posture when adjusting the angle of the swing arm 110 to adapt to different vehicles, the two connecting plates 310 are embedded in the opposing guide grooves 315 through the guide strips 311 on them and can slide. This design constrains the relative lateral position between the two connecting plates 310 when the swing arm 110 opens or closes, thereby preventing the contact plates 312 from twisting or tilting unnecessarily. like Figure 3 , Figure 4 and Figure 5 As shown, the abutment includes: Abutting plate 320 is inserted horizontally into connecting plate 310, and its exposed end is designed with a bend for contacting with car tires. Pull rope 322 is fixed to the lower part of contact plate 312, and its other end passes through the connecting plate 310 and is fixedly connected to the tail of abutment plate 320. When the contact plate 312 rotates downwards due to its contact with the chassis crossbeam, its other end rises, which will pull the pull rope 322 connected to it. The other end of the pull rope 322 is connected to the tail of the abutment plate 320 hidden inside the connecting plate 310. The tightening of the pull rope 322 will overcome the tension of the tension spring 321 and pull the abutment plate 320 outwards from the side of the connecting plate 310, so that the exposed end of its angled design firmly abuts against the side wall of the car tire. The receiving parts also include: Tension spring 321 is fixed inside the connecting plate 310, and its other end is fixedly connected to the abutment plate 320. Working principle: First, the operator drives the vehicle into the lifting area. Then, based on the vehicle's wheelbase and the lifting point position, the distance between the two uprights 100 is adjusted along the guide rail 210 and locked using the sliding block. This ensures that the support at the end of the swing arm 110 can accurately move to directly below the vehicle chassis crossbeam. The uprights 100 drive the swing arm 110 to rise, and the support begins to contact the vehicle chassis. When the V-shaped contact plate 312 in the support contacts the lifting crossbeam, it automatically rotates around the hinge seat to adjust its angle until its two inclined surfaces are symmetrical and tightly fitted against the lower surface of the crossbeam and the side of the vehicle, forming a stable surface contact. When the contact plate 312 rotates downwards due to its tight fit against the crossbeam, its other end will simultaneously pull the pull rope 322. The pull rope 322 pulls the abutment plate 320 inside the connecting plate 310, overcoming the tension of the tension spring 321 and causing it to extend outwards. Finally, the angled end of the abutment plate 320 firmly abuts against the sidewall of the car tire. Thus, the equipment automatically completes the entire process from bottom support to lateral limit with only one lifting action, forming a double safety protection of chassis support and tire locking, preventing the vehicle from lateral slippage and shaking that may occur after lifting, and ensuring the safety of personnel and equipment during maintenance operations.

[0019] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A safe lifting device for automobile repair, comprising two columns (100), characterized in that, Also includes: The swing arm (110) is installed at the lifting end of the column (100). A debugging component is disposed between two columns (100); A connecting assembly (300) is disposed between the ends of two swing arms (110) and includes a support member that contacts the vehicle chassis crossbeam and an abutment member that extends outward and contacts the vehicle tires when the support frame moves.

2. The safe lifting device for automobile repair according to claim 1, characterized in that: The support component includes: A connecting plate (310) is movable at the end of the swing arm (110) via a rotating shaft; Contact plate (312), the contact plate (312) is mounted above the connecting plate (310) via a hinge seat, the side cross section of the contact plate (312) is V-shaped, which is used to automatically change angle when in contact with the vehicle chassis and simultaneously make multi-point contact with the vehicle chassis; Contact pad (313), which is bonded to the surface of contact plate (312), is made of rubber.

3. The safe lifting device for automobile repair according to claim 1, characterized in that: The support component also includes: Spring (314), which is fixed above the connecting plate (310), has its upper end fixedly connected to the contact plate (312) and is used to abut one end of the contact plate (312) upward.

4. The safe lifting device for automobile repair according to claim 1, characterized in that: The support component also includes: The guide groove (315) consists of two sections, which are respectively opened on opposite sides of the two connecting plates (310); Guide bar (311), two guide bars (311) are provided and fixed to opposite sides of two connecting plates (310). The opposite sides of the two guide bars (311) are embedded and slid into the guide groove (315) to keep the contact plate (312) in a lateral posture when the angle of the swing arm (110) expands or contracts.

5. A safe lifting device for automobile repair according to claim 1, characterized in that: The abutment includes: Abutting plate (320) is inserted horizontally into a connecting plate (310), and its exposed end is designed with a bend for contacting with a car tire; A pull rope (322) is fixed to the lower part of the contact plate (312), and its other end passes through the connecting plate (310) and is fixedly connected to the tail of the abutment plate (320).

6. The safe lifting device for automobile repair according to claim 1, characterized in that: The abutment also includes: A tension spring (321) is fixed inside a connecting plate (310), and its other end is fixedly connected to an abutment plate (320).

7. A safe lifting device for automobile repair according to claim 1, characterized in that: The debugging components include; The guide rail (210) is located between the two columns (100) below, and its edge is connected to the ground by screws. The inside of the guide rail (210) is fixed to the column (100) by a slide block. Support pad (200) is disposed on the surface of guide rail (210).

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