A lifting adjustment mechanism for automotive maintenance

Abstract

The application discloses a lifting adjusting mechanism for automobile maintenance and belongs to the technical field of automobile repairing equipment. The lifting adjusting mechanism comprises a base, a main hydraulic lifting arm arranged on the top of the base, a lifting cover arranged on the top of the main hydraulic lifting arm, a lifting beam frame arranged on the top of the lifting cover, limit grooves symmetrically arranged on the top of the lifting beam frame, rubber adapting pads arranged on the top of the limit grooves, arc-shaped folding plates and side push plates arranged on the bottom of the rubber adapting pads, and a middle bracket arranged on the top of the lifting beam frame. The lifting adjusting mechanism can perform risk assessment on the automobile parked on the lifting beam frame before lifting and maintenance according to the input automobile signal and the collected automobile parameters, and can perform risk warning on the abnormal position change of the automobile during lifting, so that the safety hidden danger of the whole automobile during lifting operation of maintenance and repair is reduced, and the safety operation environment of the related automobile maintenance operator is ensured.

Description

Technical Field

[0001] This invention relates to the field of automotive repair equipment technology, specifically a lifting and adjusting mechanism for automotive maintenance. Background Technology

[0002] Car maintenance refers to the preventive work of regularly inspecting, cleaning, replenishing, lubricating, adjusting or replacing certain parts of a car. The lifting and adjusting mechanism used in car maintenance is an indispensable and important piece of equipment in the process of car repair and maintenance. Its main function is to lift the car to a certain height through manual or automatic operation to facilitate chassis inspection, repair and tire replacement and other operations.

[0003] In light of the above, it should be noted that: the lifting and adjustment mechanisms used in traditional automobile maintenance are susceptible to interference from different automobile models and inherent defects in the automobiles themselves. Furthermore, during maintenance and uplift, the shaking or positional deviation caused by the operator's contact with the vehicle can easily lead to slippage or tilting of the vehicle on the lifting and adjustment mechanism, posing safety hazards. This not only easily causes damage to the vehicle but also poses safety risks to the operators performing maintenance and uplift.

[0004] To address the aforementioned technical shortcomings, a solution is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a lifting and adjusting mechanism for automobile maintenance. This mechanism collects and analyzes data during the use of the vehicle lifting and adjusting mechanism, comparing the collected data with preset stored data to obtain relevant rating signals. Based on these signals, it controls relevant components to perform compensatory operations, forming a system-mechanical integrated operation process. Therefore, it can perform risk assessments before lifting and maintaining a vehicle parked on the lifting beam, based on input vehicle signals and collected vehicle parameters, and provide risk warnings for abnormal position changes during lifting. This helps reduce overall safety hazards during vehicle lifting operations for maintenance, addressing the problems raised by providing a safe working environment for relevant vehicle maintenance personnel.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a lifting and adjusting mechanism for automobile maintenance, comprising a base, a main hydraulic lifting arm at the top of the base, a lifting cover at the top of the main hydraulic lifting arm, a lifting beam at the top of the lifting cover, limit grooves symmetrically recessed at both ends of the top of the lifting beam, rubber adapter pads at the top of the limit grooves, and arc-shaped folding plates and side push plates at the bottom of the rubber adapter pads, a center bracket at the center of the top of the lifting beam, a side adjustment frame on the inner side wall of the lifting beam, a control panel connected by wires on the outer side of the base, and a storage box in the middle of the outer side wall of the lifting beam;

[0007] The side adjustment frame includes a main adjustment arm and a secondary adjustment arm. One end of the main adjustment arm is provided with a lifting frame connected to the secondary adjustment arm. A lifting plate is provided at the top center of the lifting frame. A secondary hydraulic lifting arm is provided at the bottom of the middle support frame. Telescopic plates are symmetrically provided at both ends of the top of the middle support frame.

[0008] Furthermore, the base has symmetrical recessed mounting slots on both sides of the top for connecting to the main hydraulic lifting arm, the lifting hood has a connecting slot at the bottom for connecting to the main hydraulic lifting arm, and one end of the base has a ramp frame for movably connecting to the lifting hood and the lifting beam.

[0009] Furthermore, symmetrical horizontal push cylinders connected to the side push plate are arranged on the bottom walls at both ends of the limiting groove. A special-shaped base is provided at the bottom of the side push plate, and a guide block connected to the horizontal push cylinder is provided at the bottom of the special-shaped base. An oblique push cylinder connected to the side push plate is provided at the top of the special-shaped base. A shaft is provided in the middle of the multiple sets of arc-shaped folding plates, and a fine adjustment cylinder is provided at the bottom of both ends of the arc-shaped folding plates. Multiple sets of expansion airbags are provided inside the rubber adapter pad.

[0010] Furthermore, the bottom of one end of the side adjustment frame is hinged to the main adjustment arm, one end of the auxiliary adjustment arm is provided with a drive slide, and guide wheels are symmetrically arranged at the top and bottom of the drive slide. The top of the lifting frame is provided with a lifting cylinder connected to the lifting plate. Arc-shaped grooves are provided through both ends of the top of the lifting frame, and limiting rollers connected to the main adjustment arm and the auxiliary adjustment arm are provided in the arc-shaped grooves.

[0011] Furthermore, the middle of both ends of the central bracket is symmetrically fitted with side cylinders that are connected to the telescopic plate frame. The outer walls on both sides of the telescopic plate frame are recessed with side grooves. One end of the side groove is provided with a movable slider that is connected to the inner wall of the central bracket, and the other end of the side groove is provided with a fixed slider that is connected to the side cylinder.

[0012] Furthermore, the control panel is internally equipped with a processor, an operation and maintenance monitoring platform, a usage management unit, a risk feedback unit, a control and analysis unit, and a component control unit;

[0013] When the operation and maintenance supervision platform generates a supervision instruction, it sends the supervision instruction to the user management unit. After receiving the supervision instruction, the user management unit immediately collects the parking calibration value of the vehicle on the lifting adjustment mechanism, analyzes the parking calibration value, and sends the obtained mismatch signal and deviation misalignment signal to the risk feedback unit and control analysis unit.

[0014] Upon receiving a mismatch signal or deviation signal, the risk feedback unit immediately collects the operating parameters of the lifting adjustment mechanism, including the pivot deviation value and lifting dynamic loss difference value of the lifting adjustment mechanism. The unit analyzes the operating parameters and sends the obtained normal signals to the control and analysis unit via the user management unit, while sending the obtained abnormal signals to the component control unit via the processor.

[0015] When the control and analysis unit receives normal signals and deviation / misalignment signals, it generates a lifting hazard signal and sends the lifting hazard signal to the component control via the processor.

[0016] Furthermore, the analysis process of the parking calibration value by the management unit is as follows:

[0017] The time elapsed between the start and end of the lifting adjustment mechanism's operation is collected and marked as a time threshold. Based on this time threshold, the parking calibration value of the vehicle paused on the lifting adjustment mechanism within the time threshold is obtained. The parking calibration value is then compared and analyzed with a preset parking calibration value range stored in the processor. If the parking calibration value is greater than the maximum value in the preset parking calibration value range, a mismatch signal is generated. If the parking calibration value is within the preset parking calibration value range, no signal is generated. If the parking calibration value is less than the minimum value in the preset parking calibration value range, a deviation misalignment signal is generated.

[0018] Furthermore, the risk data analysis process of the risk feedback unit:

[0019] The time threshold is divided into i sub-time nodes, where i is a natural number greater than zero. The fulcrum load value of the lifting adjustment mechanism in each sub-time node is obtained. Then, the difference between the fulcrum load values ​​in two consecutive sub-time nodes is obtained and marked as the fulcrum deviation value. A set of fulcrum deviation values ​​is constructed in this way, and the cluster difference value of the fulcrum deviation value set is obtained and marked as the difference evaluation value.

[0020] The lifting dynamic loss difference value of the lifting adjustment mechanism is obtained at each sub-time node. A rectangular coordinate system is established with time as the X-axis and the lifting dynamic loss difference value as the Y-axis. The lifting dynamic loss difference value change curve is plotted in this coordinate system. At the same time, a preset lifting dynamic loss difference value threshold curve is plotted in this coordinate system. Based on this, the number of lifting dynamic loss difference values ​​corresponding to the lifting dynamic loss difference value change curve located on the preset lifting dynamic loss difference value threshold curve is obtained from the coordinate system and marked as the convex value. At the same time, the area formed by the overlap between the lifting dynamic loss difference value change curve located above the preset lifting dynamic loss difference value threshold curve and the preset lifting dynamic loss difference value threshold curve is obtained. This overlapping area is marked as the difference area. Based on this, the product of the convex value and the difference area is marked as the risk product value.

[0021] The difference assessment value and risk accumulation value are compared and analyzed with the preset difference assessment value threshold and preset risk accumulation value threshold stored in the processor. If the difference assessment value is less than the preset difference assessment value threshold and the risk accumulation value is less than the preset risk accumulation value threshold, a normal signal is generated. If the difference assessment value is greater than or equal to the preset difference assessment value threshold and the risk accumulation value is greater than or equal to the preset risk accumulation value threshold, an abnormal signal is generated. The generated abnormal signal is sent to the component control unit via the processor. After receiving the abnormal signal, the component control unit immediately controls the main hydraulic lifting arm to work.

[0022] Furthermore, after receiving normal signals and deviation / misalignment signals, the control and analysis unit obtains a lifting hazard signal. When a lifting hazard signal is generated, it immediately acquires the portion of the parking calibration value that is less than the minimum value in the preset parking calibration value range and marks it as a hazard manifestation value. Based on this, the hazard manifestation value is compared and analyzed with the preset hazard manifestation value range stored and entered in the processor.

[0023] If the apparent value of the hazard is less than the minimum value in the preset apparent value range, a first-level scheme signal is generated; if the apparent value of the hazard is within the preset apparent value range, a second-level scheme signal is generated; if the apparent value of the hazard is greater than the maximum value in the preset apparent value range, a third-level scheme signal is generated. The generated first-level, second-level, and third-level scheme signals are sent to the component control unit through the processor. After receiving the first-level scheme signal, the component control unit immediately controls the lifting beam to work; after receiving the second-level scheme signal, the component control unit immediately controls the side adjustment frame to work; and after receiving the third-level scheme signal, the component control unit immediately controls the auxiliary hydraulic lifting boom to work.

[0024] The beneficial effects of this invention are:

[0025] 1. This invention collects and analyzes data from the vehicle lifting and adjustment mechanism during use, comparing and analyzing the collected data with preset stored data to obtain relevant rating signals. Based on these signals, relevant components are controlled to perform compensatory operations, forming a system-mechanical integrated operation process. Therefore, it can perform risk assessments on vehicles parked on the lifting beam before lifting and maintenance based on input vehicle signals and collected vehicle parameters, and provide risk warnings for abnormal position changes of the vehicle during lifting. This helps reduce overall safety hazards during vehicle lifting operations for maintenance, and improves the safe working environment for relevant vehicle maintenance personnel.

[0026] 2. This invention utilizes the structural linkage between the rubber adapter pad, the arc-shaped folding plate, and the side push plate to form a concave wrapping locking system for the car tires, a contact-type buffer energy absorption system at the bottom of the car tires, and an external multi-frame wrapping protective locking system. Furthermore, through the side adjustment structure used in conjunction with the lifting beam, a multi-point contact stabilizing and anti-fall structure is established at the bottom of the car. Combined with the rubber adapter pad, this forms an internal and external double four-point lifting and locking structure, which facilitates safe lifting operations during car maintenance and improves the overall efficiency of car maintenance work. Attached Figure Description

[0027] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings;

[0028] Figure 1 This is a perspective view of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the connection structure between the base and the lifting cover of the present invention;

[0030] Figure 3 This is a partial structural schematic diagram of the lifting beam frame of the present invention;

[0031] Figure 4 This is a schematic diagram of the side push plate of the present invention;

[0032] Figure 5 This is a schematic diagram of the arc-shaped folding plate and the rubber adapter pad of the present invention;

[0033] Figure 6 This is a schematic diagram of the side adjustment frame of the present invention;

[0034] Figure 7 This is a schematic diagram of the structure of the auxiliary adjusting arm of the present invention;

[0035] Figure 8 This is a schematic diagram of the bracket structure in this invention;

[0036] Figure 9 This is a flowchart of the system of the present invention;

[0037] Figure 10 This is a partial analysis diagram of the system data of the present invention.

[0038] Reference numerals: 1. Base; 101. Assembly slot; 102. Main hydraulic lifting boom; 2. Lifting cover; 3. Lifting beam; 301. Limiting slot; 302. Rubber adapter pad; 303. Horizontal push cylinder; 304. Arc-shaped folding plate; 305. Side push plate; 306. Irregularly shaped base; 307. Guide block; 308. Inclined push cylinder; 309. Shaft; 310. Fine-tuning cylinder; 311. Inflatable airbag; 4. Slope frame; 5. Control panel 6. Side adjustment frame; 601. Main adjustment arm; 602. Lifting frame; 603. Lifting plate; 604. Auxiliary adjustment arm; 605. Drive slide; 606. Guide wheel; 607. Limit roller; 608. Lifting cylinder; 609. Arc groove; 7. Middle support frame; 701. Auxiliary hydraulic lifting arm; 702. Side cylinder; 703. Telescopic plate frame; 704. Movable slider; 705. Side groove; 706. Fixed slider; 8. Storage box. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Example 1: Please refer to Figure 1 - Figure 10 As shown, this embodiment is a lifting and adjusting mechanism for automobile maintenance, including a base 1, a main hydraulic lifting arm 102 is provided on the top of the base 1, a lifting cover 2 is provided on the top of the main hydraulic lifting arm 102, a lifting beam 3 is provided on the top of the lifting cover 2, and a limit groove 301 is symmetrically recessed at both ends of the top of the lifting beam 3. A rubber adapter pad 302 is provided on the top of the limit groove 301, and an arc-shaped folding plate 304 and a side push plate 305 are provided at the bottom of the rubber adapter pad 302.

[0041] A middle support frame 7 is provided at the top center of the lifting beam frame 3, and a side adjustment frame 6 is provided on the inner side wall of the lifting beam frame 3. A control panel 5 is connected to the outer side of the base 1 by wires. A storage box 8 is provided in the middle of the outer side wall of the lifting beam frame 3. The side adjustment frame 6 includes a main adjustment arm 601 and an auxiliary adjustment arm 604. A lifting frame 602 connected to the auxiliary adjustment arm 604 is provided at one end of the main adjustment arm 601. A lifting plate 603 is provided at the top center of the lifting frame 602. An auxiliary hydraulic lifting arm 701 is provided at the bottom of the middle support frame 7, and telescopic plate frames 703 are symmetrically provided at both ends of the top of the middle support frame 7.

[0042] The control panel 5 internally includes a processor, an operation and maintenance monitoring platform, a usage management unit, a risk feedback unit, a control and analysis unit, and a component control unit. When the operation and maintenance monitoring platform generates a monitoring instruction, it sends the instruction to the usage management unit. Upon receiving the instruction, the usage management unit immediately collects the parking calibration values ​​of the vehicle on the lifting and adjusting mechanism, analyzes these values, and sends the resulting mismatch signals and deviation / misalignment signals to the risk feedback unit and the control and analysis unit. The usage management unit's analysis process for the parking calibration values ​​is as follows:

[0043] The time between the start and end of operation of the lifting adjustment mechanism is collected and marked as a time threshold. Based on this, the parking calibration value of the vehicle paused on the lifting adjustment mechanism within the time threshold is obtained. It should be noted that the parking calibration value is collected by photoelectric sensors installed on both sides of the lifting beam 3. The parking calibration value is compared and analyzed with the preset parking calibration value range stored in the processor.

[0044] If the parking calibration value is greater than the maximum value in the preset parking calibration value range, an incompatibility signal is generated;

[0045] If the parking calibration value is within the preset parking calibration value range, no signal will be generated;

[0046] If the parking calibration value is less than the minimum value in the preset parking calibration value range, a deviation misalignment signal is generated;

[0047] Upon receiving mismatch or deviation signals, the risk feedback unit immediately collects the operating parameters of the lifting adjustment mechanism, including the pivot deviation and lifting dynamic loss difference. The unit analyzes these parameters, sending normal signals to the control and analysis unit via the user management unit, and sending abnormal signals to the component control unit via the processor. The risk data analysis process of the risk feedback unit is as follows:

[0048] The time threshold is divided into i sub-time nodes, where i is a natural number greater than zero. The fulcrum load value of the lifting adjustment mechanism in each sub-time node is obtained. Then, the difference between the fulcrum load values ​​in two consecutive sub-time nodes is obtained and marked as the fulcrum deviation value. A set of fulcrum deviation values ​​is constructed in this way. The cluster difference value of the fulcrum deviation value set is obtained and marked as the difference evaluation value. It should be noted that the larger the difference evaluation value, the more abnormal the car parking on the lifting beam 3 is.

[0049] The lifting dynamic loss difference value of the lifting adjustment mechanism is obtained at each sub-time node. A rectangular coordinate system is established with time as the X-axis and the lifting dynamic loss difference value as the Y-axis. The lifting dynamic loss difference value change curve is plotted in this coordinate system. At the same time, a preset lifting dynamic loss difference value threshold curve is plotted in this coordinate system. Based on this, the number of lifting dynamic loss difference values ​​corresponding to the lifting dynamic loss difference value change curve located on the preset lifting dynamic loss difference value threshold curve is obtained from the coordinate system and marked as the convex value. At the same time, the area formed by the overlap between the lifting dynamic loss difference value change curve located above the preset lifting dynamic loss difference value threshold curve and the preset lifting dynamic loss difference value threshold curve is obtained. This overlapping area is marked as the difference area. Based on this, the product of the convex value and the difference area is marked as the risk product value.

[0050] The difference assessment value and risk product value are compared and analyzed with the preset difference assessment value threshold and preset risk product value threshold stored in the processor's internal memory.

[0051] If the difference assessment value is less than the preset difference assessment value threshold and the risk product value is less than the preset risk product value threshold, a normal signal is generated.

[0052] If the difference assessment value is greater than or equal to the preset difference assessment value threshold, and the risk accumulation value is greater than or equal to the preset risk accumulation value threshold, an abnormal signal is generated. The generated abnormal signal is sent to the component control unit via the processor. After receiving the abnormal signal, the component control unit immediately controls the main hydraulic lifting boom 102 to work. The main hydraulic lifting boom 102 slows down the continuous lifting movement of the lifting beam 3 and unlocks the lock built into the main hydraulic lifting boom 102 itself. After observing the actual situation, the external operator slowly adjusts the main hydraulic lifting boom 102 to slide down, resets the lifting beam 3, adjusts the vehicle, and then moves it back onto the lifting beam 3.

[0053] When the control and analysis unit receives normal signals and deviation / misalignment signals, it generates a lifting hazard signal and sends it to the component control via the processor. Upon receiving the normal signals and deviation / misalignment signals, the control and analysis unit obtains the lifting hazard signal. When a lifting hazard signal is generated, it immediately acquires the portion of the parking calibration value that is less than the minimum value in the preset parking calibration value range and marks it as a hazard manifestation value. Based on this, it compares and analyzes the hazard manifestation value with the preset hazard manifestation value range stored in the processor.

[0054] If the apparent value of the hidden danger is less than the minimum value in the preset apparent value range of hidden danger, a first-level solution signal is generated;

[0055] If the apparent value of the hidden danger is within the preset apparent value range, a secondary scheme signal is generated;

[0056] If the apparent value of the hidden danger is greater than the maximum value in the preset apparent value range, a secondary scheme signal is generated. The generated primary scheme signal, secondary scheme signal and tertiary scheme signal are sent to the component control unit through the processor. After receiving the primary scheme signal, the component control unit immediately controls the lifting beam 3 to work. The lifting beam 3 is equipped with an air pump connected to the inflatable airbag 311. The air pump regulates the air pressure inside the inflatable airbag 311 through the pipeline, causing the rubber adapter pad 302 to be flattened and attached to the bottom of the wheel tire, and covering and locking the bottom area of ​​the car tire. This helps the car slide down as a whole through the rubber adapter pad 302 and embed into the limiting groove 301, forming a contact-type buffer energy absorption at the bottom of the car tire, as well as an external multi-frame covering protection and locking.

[0057] Upon receiving the secondary scheme signal, the component control unit immediately controls the side adjustment frame 6 to operate. The side adjustment frame 6 is started by a drive motor installed in the drive slide 605. The drive motor is connected to the guide wheel 606 through a transmission component. The guide wheel 606 is driven by the drive motor to rotate and contact the inner wall of the lifting beam 3, thereby driving the auxiliary adjustment arm 604 to move closer to the main adjustment arm 601. During this process, the main adjustment arm 601 and the main adjustment arm 602 move along the arc groove 609 through the limiting roller 607, causing the limiting roller 607 to move from the middle of both ends of the lifting frame 602. When the lifting frame 602 moves to the side of the inner wall of the lifting beam 3, combined with the continuous moving thrust of the auxiliary adjusting arm 604, the auxiliary adjusting arm 604 and the main adjusting arm 601 are squeezed by the limiting roller 607 and rotatedly connected to the lifting frame 602, causing the lifting frame 602 to slide out of the inner wall of the lifting beam 3. According to the vehicle lifting adjustment needs, the lifting cylinder 608 drives the lifting plate 603 to slide up and contact the vehicle chassis support beam. The multi-point contact stable anti-fall structure at the bottom of the vehicle, together with the rubber adapter pad 302, forms an inner and outer double four-point lifting locking structure.

[0058] Upon receiving the Level 3 scheme signal, the component control unit immediately controls the auxiliary hydraulic lifting arm 702 to operate. The middle support 7 slides upward and detaches from the middle of the lifting beam frame 3 via the auxiliary hydraulic lifting arm 701. At this time, there is a certain gap between the middle support 7 and the vehicle chassis. The control panel 5 controls the temporary locking of the main hydraulic lifting arm 102 and the auxiliary hydraulic lifting arm 701. The side cylinder 702 drives the telescopic frame 703 to extend to both ends of the middle support 7 via the fixed slider 706 and the movable slider 704, and unfolds to fit the size of the vehicle chassis, opening the storage box. 8. Remove the appropriate rubber pad and place it on the top of the telescopic frame 703 in the connection area between it and the vehicle chassis beam. Release the temporary locking of the auxiliary hydraulic lifting arm 701 and control the auxiliary hydraulic lifting arm 701 to slide upward again, so that the telescopic frame 703 contacts the vehicle chassis beam support connection through the rubber pad, thereby realizing the secondary lifting of the vehicle for maintenance. Alternatively, after adjusting and lifting the vehicle, restart the main hydraulic lifting arm 102 and the auxiliary hydraulic lifting arm 701 to reset the vehicle to near the ground. After adjusting it with external equipment, perform maintenance operations again.

[0059] Example 2: This example is a lifting and adjusting mechanism for automobile maintenance. It includes a base 1 with symmetrical recesses on both sides of the top, which are provided with assembly grooves 101 for connecting to the main hydraulic lifting arm 102. The bottom of the lifting cover 2 is provided with a connecting groove for connecting to the main hydraulic lifting arm 102. One end of the base 1 is provided with a ramp 4 that is movably connected to the lifting cover 2 and the lifting beam 3. The car waiting for maintenance travels on the ramp 4 to the top of the lifting beam 3 until the four wheels of the car are above the rubber adapter pads 302, then stops and the engine is turned off. The operator uses the control panel 5 to adjust and start the lifting and adjusting mechanism according to the car lifting needs, and inputs the car signal to obtain the car parameters from the processor.

[0060] Symmetrically arranged on the bottom walls at both ends of the limiting groove 301 are horizontal push cylinders 303 connected to the side push plate 305. A shaped base 306 is provided at the bottom of the side push plate 305, and a guide block 307 connected to the horizontal push cylinder 303 is provided at the bottom of the shaped base 306. A slanted push cylinder 308 connected to the side push plate 305 is provided at the top of the shaped base 306. A shaft 309 is provided in the middle of multiple sets of arc-shaped folding plates 304, and fine-tuning cylinders 310 are provided at the bottom of both ends of the arc-shaped folding plates 304. Multiple sets of expansion airbags 311 are provided inside the rubber adapter pad 302. After the lifting adjustment mechanism is activated... Data collection and matching are performed on the parked and lifted car in advance. The lifting beam 3 pushes the side push plate 305 close to the arc-shaped folding plate 304 through the horizontal push cylinder 303. The arc-shaped folding plate 304 activates the fine adjustment cylinder 310 according to the car wheel hub size. The fine adjustment cylinder 310 drives the arc-shaped folding plate 304 to deflect through the shaft 309, which is used to adjust the size of the V-shaped opening angle between multiple sets of arc-shaped folding plates 304 and adjust the bottom limit shape of the rubber adapter pad 302. This helps the rubber adapter pad 302 to be depressed and stuck between the arc-shaped folding plate 304 and the side push plate 305 after the car is squeezed by its own weight.

[0061] The lifting beam 3 is equipped with an air pump that is connected to the inflatable airbag 311. The air pump regulates the air pressure inside the inflatable airbag 311 through pipelines, causing the rubber adapter pad 302 to be depressed and attached to the bottom of the wheel tire, and covering and locking the bottom area of ​​the car tire.

[0062] The bottom of one end of the side adjustment frame 6 is hinged to the main adjustment arm 601. One end of the auxiliary adjustment arm 604 is provided with a drive slide 605, and guide wheels 606 are symmetrically arranged at the top and bottom of the drive slide 605. The side adjustment frame 6 is started by a drive motor installed in the drive slide 605. The drive motor is connected to the guide wheel 606 through a transmission component. The guide wheel 606 is driven to rotate by the drive motor and contacts the inner wall of the side of the lifting beam frame 3, thereby driving the auxiliary adjustment arm 604 to move closer to the main adjustment arm 601. The top of the lifting frame 602 is provided with a lifting cylinder 608 connected to the lifting plate 603. Arc grooves 609 are provided through both ends of the top of the lifting frame 602, and limit rollers 607 connected to the main adjustment arm 601 and the auxiliary adjustment arm 604 are provided in the arc grooves 609.

[0063] The middle bracket 7 has symmetrically embedded side cylinders 702 at both ends, which are connected to the telescopic plate frame 703. The telescopic plate frame 703 has side grooves 705 recessed on its outer walls on both sides. One end of each side groove 705 has a movable slider 704 connected to the inner wall of the middle bracket 7, and the other end has a fixed slider 706 connected to the side cylinders 702. The middle bracket 7 is driven upwards and detaches from the middle of the lifting beam frame 3 by the auxiliary hydraulic lifting arm 701. At this time, there is a certain gap between the middle bracket 7 and the vehicle chassis. The control panel 5 controls the temporary locking of the main hydraulic lifting arm 102 and the auxiliary hydraulic lifting arm 701. The cylinder 702 drives the telescopic frame 703 to extend to both ends of the middle bracket 7 via the fixed slider 706 and the movable slider 704, and unfolds to fit the size of the car chassis. The storage box 8 is opened, and the matching rubber pad is taken out and placed on the top of the telescopic frame 703 in the connection area with the car chassis beam. The temporary locking of the auxiliary hydraulic lifting arm 701 is released, and the auxiliary hydraulic lifting arm 701 is controlled to slide upward again, so that the telescopic frame 703 contacts the car chassis beam support connection through the rubber pad. This realizes the secondary lifting of the car for maintenance and avoids the situation where the car is initially misaligned on the lifting beam 3 and is not easy to descend and reset.

[0064] Combining Embodiment 1 and Embodiment 2, it is possible to conduct a risk assessment of the vehicle parked on the lifting beam 3 before lifting and maintenance based on the input vehicle signals and collected vehicle parameters, as well as to issue a risk warning for abnormal position changes of the vehicle during lifting. This helps to reduce the overall safety hazards of the vehicle during the lifting operation for maintenance, based on the safe working environment of the relevant vehicle maintenance personnel.

[0065] The threshold value is set to facilitate comparison. The threshold value depends on the amount of sample data and the number of base samples set by those skilled in the art for each group of sample data; it is acceptable as long as it does not affect the proportional relationship between the parameter and the quantized value. The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A lifting and adjusting mechanism for automobile maintenance, comprising a base (1), characterized in that, The base (1) is provided with a main hydraulic lifting arm (102) at the top, and a lifting cover (2) is provided at the top of the main hydraulic lifting arm (102). A lifting beam (3) is provided at the top of the lifting cover (2). Limiting grooves (301) are symmetrically recessed at both ends of the top of the lifting beam (3). A rubber adapter pad (302) is provided at the top of the limiting groove (301). An arc-shaped folding plate (304) and a side push plate (305) are provided at the bottom of the rubber adapter pad (302). A middle bracket (7) is provided at the center of the top of the lifting beam (3). A side adjustment frame (6) is provided on the inner side wall of the lifting beam (3). A control panel (5) is connected to the outer side of the base (1). A storage box (8) is provided in the middle of the outer side wall of the lifting beam (3). The side adjustment frame (6) includes a main adjustment arm (601) and a secondary adjustment arm (604), and a lifting frame (602) connected to the secondary adjustment arm (604) is provided at one end of the main adjustment arm (601). A lifting plate (603) is provided at the top center of the lifting frame (602). A secondary hydraulic lifting arm (701) is provided at the bottom of the middle support frame (7), and telescopic plates (703) are symmetrically provided at both ends of the top of the middle support frame (7). The bottom of one end of the side adjustment frame (6) is hinged to the main adjustment arm (601). One end of the auxiliary adjustment arm (604) is provided with a drive slide (605), and the top and bottom of the drive slide (605) are symmetrically provided with guide wheels (606). The top of the lifting frame (602) is provided with a lifting cylinder (608) connected to the lifting plate (603). The top two ends of the lifting frame (602) are provided with arc-shaped grooves (609), and the arc-shaped grooves (609) are provided with limiting rollers (607) connected to the main adjustment arm (601) and the auxiliary adjustment arm (604). The middle bracket (7) is symmetrically fitted with side cylinders (702) that are connected to the telescopic plate frame (703) at the middle of both ends. The telescopic plate frame (703) has side grooves (705) recessed on both outer walls. One end of the side groove (705) is provided with a movable slider (704) that is connected to the inner wall of the middle bracket (7), and the other end of the side groove (705) is provided with a fixed slider (706) that is connected to the side cylinder (702).

2. The lifting and adjusting mechanism for automobile maintenance according to claim 1, characterized in that, The base (1) has symmetrical recesses on both sides of the top, and assembly slots (101) are provided for connecting the main hydraulic lifting arm (102). The bottom of the lifting cover (2) is provided with a connecting slot for connecting the main hydraulic lifting arm (102). One end of the base (1) is provided with a ramp (4) that is movably connected to the lifting cover (2) and the lifting beam (3).

3. The lifting and adjusting mechanism for automobile maintenance according to claim 1, characterized in that, The limiting groove (301) is symmetrically provided with horizontal push cylinders (303) connected to the side push plate (305) on the bottom wall at both ends. The side push plate (305) is provided with a special-shaped base (306) at the bottom, and the special-shaped base (306) is provided with a guide block (307) connected to the horizontal push cylinder (303) at the bottom. The special-shaped base (306) is provided with a slanted push cylinder (308) connected to the side push plate (305) at the top. The multiple sets of arc-shaped folding plates (304) are provided with shafts (309) in the middle, and the arc-shaped folding plates (304) are provided with fine-tuning cylinders (310) at the bottom of both ends. The rubber adapter pad (302) is provided with multiple sets of expansion airbags (311).

Images