Intelligent automobile fault diagnosis and maintenance all-in-one machine and use method thereof

Abstract

The invention discloses an intelligent automobile fault diagnosis and maintenance all-in-one machine and a using method thereof, and belongs to the technical field of automobile maintenance devices.The intelligent automobile fault diagnosis and maintenance all-in-one machine comprises a tire elevator, a workbench, a frame, an air loop and a waste liquid tray. The tire lifter consists of a pair of tire lifter arms and a frame connected with the rear ends of the tire lifter arms and is used for lifting tires; the workbench is provided with a supporting column, a tray and an air conditioner. The frame comprises foot parts, connecting parts and the like, and the foot parts are provided with trundles, stoppers and the like; the air loop supplies compressed air; the waste liquid tray collects waste liquid. According to the trolley, multiple functions are integrated, the tire elevator and the stop dog are driven through an air loop, and an operator can operate the trolley conveniently. The trolley is convenient to move, stable in fixation, capable of effectively improving maintenance efficiency, reducing maintenance difficulty and preventing waste liquid pollution and suitable for the field of automobile maintenance.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobile maintenance devices, and in particular relates to an intelligent automobile fault diagnosis and maintenance integrated machine and a use method thereof. Background Art

[0002] In automobile maintenance operations, especially tire-related maintenance work, efficient and convenient maintenance equipment is crucial to improving work efficiency and quality.

[0003] Traditional car maintenance methods often involve a variety of independent equipment. For example, in the process of tire removal and installation, a device similar to a tire lift is usually used. Its structure is generally to set pillars on the left and right sides of the rear end of the frame with wheels, and the pillars support a pair of arms that can be raised and lowered for placing tires. The lifting and lowering of the arms are controlled by hydraulic cylinders. In actual operation, for example, to remove a tire, first use other lifts to lift the car to a predetermined height, then move the tire lift to the bottom of the tire, raise the arm until it is directly under the tire, then loosen the wheel nut, remove the tire and place it on the arm, then move the tire lift back, and finally lower the arm and tire. The whole process is cumbersome and requires frequent switching between different equipment. It not only consumes a lot of time and manpower, but also has high requirements for maintenance space. At the same time, maintenance personnel also need to use work carts to store various maintenance tools. In actual maintenance scenarios, operators need to walk back and forth between the two, pick up and place tools and perform corresponding operations, which greatly affects the maintenance efficiency. In addition, from the perspective of equipment maintenance, tire lifts mainly rely on hydraulic systems to provide power, while work carts focus on pneumatic systems to drive tools. This means that maintenance personnel need to master the maintenance knowledge of two different power systems and be equipped with different maintenance tools to perform maintenance on the tire lift and the work trolley respectively. This undoubtedly increases the complexity and cost of equipment maintenance and brings inconvenience to maintenance work.

[0004] In summary, the existing automobile maintenance equipment has obvious deficiencies in terms of ease of use and ease of maintenance, and an intelligent automobile fault diagnosis and maintenance all-in-one machine is urgently needed to solve these problems. Summary of the invention

[0005] The purpose of the present invention is to provide an intelligent automobile fault diagnosis and maintenance integrated machine and a method of using the same to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: an intelligent automobile fault diagnosis and maintenance integrated machine comprising:

[0007] A tire lifter (3) is used for lifting a tire, the tire lifter (3) comprising a pair of left and right first tire lifter arms (32) extending in a front-rear direction and a tire lifter frame (31) connected to rear ends of the first tire lifter arms (32);

[0008] A workbench (4) is arranged at the rear of the tire lifter (3), and the workbench (4) is composed of a pair of left and right workbench pillars (41) extending upward from the rear end of the frame (2), a workbench tray (42) mounted on the upper ends of the workbench pillars (41), and an air conditioner arranged on the side of the workbench tray (42);

[0009] A frame (2) for setting the tire lift (3) and the workbench (4), the frame (2) being composed of a pair of left and right feet (21) extending in the front-rear direction and a connecting portion (22) connecting the feet (21), each of the feet (21) having a front caster (24) arranged at the front end, a rear caster arranged at the rear end, a stopper (25) arranged behind the front caster (24), a frame support portion (23) extending upward from a contact position between the foot (21) and the connecting portion (22), a plate-like frame side plate portion (29) connecting the frame support portion (23) and the rear end of the foot (21), and a waste liquid tray placement portion (21a) for placing a waste liquid tray (5);

[0010] an air circuit (6) for supplying compressed air;

[0011] Waste liquid tray (5);

[0012] The tire lift frame (31) uses the frame support (23) as a guide rail to maintain vertical movement, and the stopper (25) of the tire lift (3) and the frame (2) is driven by compressed air supplied by the air circuit (6).

[0013] Preferably, the upper surfaces of the pair of first tire lift arms (32) are respectively provided with first rollers (32a) having rotation axes parallel to the first tire lift arms (32).

[0014] Preferably, second rollers (32b) having rotation axes parallel to the first tire lift arms (32) are respectively provided on the side surfaces of the pair of first tire lift arms (32), that is, the surfaces of the pair of first tire lift arms (32) facing each other.

[0015] Preferably, the tire lifter (3) comprises a hydraulic converter (34) for generating oil pressure by compressed air supplied by the air circuit (6) and a hydraulic cylinder (33) driven by the oil pressure, and is lifted and lowered by the hydraulic cylinder (33), and also comprises a tire fall-off prevention device (7) for fixing the tire on the first tire lifter arm (32), and the tire fall-off prevention device (7) is detachably connected to the outer side surface of each of the first tire lifter arms (32).

[0016] Preferably, the workbench (4) has an axle seat (42a) for placing an axial part on the workbench tray (42), and the axle seat (42a) is composed of a plurality of U-shaped parts arranged on the workbench tray (42).

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] Integrated design improves handling and operation convenience

[0019] The automobile maintenance trolley (1) of the present invention integrates a tire lifter (3) and a workbench (4) into one body, thereby reducing the dispersion of the equipment. In actual maintenance scenarios, operators do not need to frequently move back and forth between different equipment. They only need to push or pull the trolley and use the front casters (24) at the front end of the foot (21) of the frame (2) and the rear casters at the rear end to conveniently move the trolley to a working position near the automobile tire. For example, in a maintenance workshop, the position of the trolley can be easily adjusted to meet the maintenance needs of different vehicles.

[0020] After reaching the designated position, the front caster (24) and the rear caster are stopped by operating the stopper (25) on the foot (21), thereby stabilizing the position of the trolley and providing a stable working platform for subsequent maintenance operations. The operator can complete multiple operations such as tire lifting and lowering and tool access on the same trolley, which greatly saves time and physical strength and significantly improves the overall efficiency of the maintenance operation.

[0021] Optimize structure to enhance stability and applicability

[0022] The frame (2) has a reasonable structural design, and its frame support part (23) provides precise guidance for the lifting of the tire lifter (3). The frame support parts (23) are connected to each other through reinforcing plates (27a, 27b, 27c), thereby enhancing the overall rigidity of the frame and ensuring that the frame structure of the tire lifter (3) is stable during the lifting process without shaking or deformation.

[0023] At the same time, the side guard plate (29) installed at the bottom of the frame support part (23) can not only effectively hide the compressed air piping, making the trolley look neat, but also prevent the frame support part (23) from tipping forward and backward, further improving the stability and safety of the trolley during use.

[0024] The rollers (32a, 32b) on the tire lift arm (32) in the tire lift (3) are cleverly designed. A suitable roller (32a or 32b) is selected according to the outer diameter of the tire, and the tire is placed thereon. The rotation of the rollers can keep the tire stable at the center of the tire lift arm (32), making the lifting operation of the tire convenient. The rollers (32a, 32b) at different intervals expand the range of outer diameters of tires that the tire lift (3) can adapt to, thereby enhancing the applicability of the trolley to tires of different specifications.

[0025] Unified power system improves maintainability

[0026] A single air circuit (6) is used to supply compressed air as a power source to drive the lifting of the tire lifter (3) and the operation of the tools on the workbench (4). This avoids the maintenance complexity caused by the coexistence of multiple power systems in traditional maintenance equipment. The operator only needs to be familiar with a set of maintenance methods based on the compressed air power system and use the corresponding tools to perform maintenance on the entire trolley.

[0027] For example, when maintaining the hydraulic cylinder (33) of the tire lifter (3) and the cylinder of the stopper (25), as well as the compressed air driven tools on the workbench (4), there is no need to perform complex maintenance operations for different power systems separately, which reduces the maintenance cost and difficulty, effectively improves the maintainability of the automobile maintenance trolley (1) itself, enables the trolley to operate more long-term and stably, reduces the interruption of maintenance operations due to equipment maintenance problems, and further improves the overall efficiency of the maintenance work.

[0028] Efficient waste liquid collection and environmental protection

[0029] The waste liquid tray (5) is placed on the waste liquid tray placement part (21a) of the foot (21) of the frame (2), and its position is reasonably designed. When the tires and / or wheels on the tire elevator (3) are cleaned or swept, the generated waste liquid can directly fall into the waste liquid tray (5).

[0030] This effectively prevents waste liquid from flowing on the ground of the maintenance site, avoiding the waste liquid from polluting the working environment, reflecting good environmental protection performance. At the same time, it also facilitates the centralized treatment of waste liquid, keeps the maintenance site clean and sanitary, provides a good working environment for maintenance personnel, and indirectly improves the safety and efficiency of maintenance operations.

[0031] Multifunctional workbench improves work efficiency

[0032] The design of the workbench (4) fully considers the actual needs of maintenance work, and a variety of functional components are arranged on the upper surface of the workbench tray (42). The shaft seat (42a) can be used to place shaft-shaped parts such as drive shafts removed from the vehicle, the tool box (42b) is convenient for inserting and fixing tools such as medium-sized impact wrenches, the parts tray (42c) can organize small objects or small tools such as bolts and nuts, and the handle (42d) is convenient for operators to move the trolley.

[0033] The reasonable layout of these functional components enables operators to conveniently and quickly access the required tools and parts during the maintenance process, reducing the time for finding tools and arranging parts, and further improving the efficiency of maintenance work. At the same time, the back guard plate (44) on the back of the workbench pillar (41) not only hides the compressed air piping, but also enhances the connection rigidity between the workbench pillars (41), ensuring the stability of the workbench (4) when carrying tools and parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a perspective view of an example of the automobile repair trolley of the present invention.

[0035] Figure 2 It is a front view of the same embodiment.

[0036] Figure 3 It is a right side view of the same embodiment.

[0037] Figure 4 It is a plan view of the same embodiment.

[0038] Figure 5 It is a rear view of the same embodiment.

[0039] Figure 6 It is a pneumatic circuit diagram of the same embodiment.

[0040] In the figure: 1, trolley; 2, frame; 3, tire lifter; 4, workbench; 5, waste liquid tray; 6, air circuit; 7, tire fall prevention device; 21, frame foot; 21a, waste liquid tray placement portion; 22, frame connection portion; 23, frame support portion; 24, caster; 25, stopper; 26, foot-operated stopper; 27a, 27b, 27c, reinforcement plate; 28, pin; 29, side guard plate; 31, tire lifter frame; 31a, 31b, transverse frame portion; 31c, longitudinal frame portion; 31d, pin; 32, arm; 32a, 32b, roller; 32 c, pin; 33, hydraulic cylinder; 33a, rod; 33b, cylinder body; 34, hydraulic converter; 35, roller; 36, reinforcement plate; 41, workbench support; 42, workbench tray; 42a, axle seat; 42b, tool box; 42c, parts tray; 42d, handle; 43, mounting plate; 43a, tool box; 43b, rod accommodating portion; 44, back guard plate; 45, tire lift lifting switch; 46, brake operating lever; 47, air regulator box; C1, air intake cap; C2, air supply cap; R1, filter; V1, V2, V3, V4, valve. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] See also Figure 1-Figure 6 The present invention provides an intelligent automobile fault diagnosis and maintenance integrated machine comprising:

[0043] A tire lifter 3 is used for lifting tires. The tire lifter 3 is composed of a pair of left and right first tire lifter arms 32 extending in the front-rear direction and a tire lifter frame 31 connected to the rear ends of the first tire lifter arms 32;

[0044] The workbench 4 is arranged behind the tire lifter 3, and the workbench 4 is composed of a pair of left and right workbench pillars 41 extending upward from the rear end of the frame 2, a workbench tray 42 mounted on the upper ends of the workbench pillars 41, and an air conditioner arranged on the side of the workbench tray 42;

[0045] A frame 2 for setting a tire lift 3 and a workbench 4, the frame 2 being composed of a pair of left and right legs 21 extending in the front-rear direction and a connecting portion 22 connecting the legs 21, each of the legs 21 having a front caster 24 arranged at the front end, a rear caster arranged at the rear end, a stopper 25 arranged behind the front caster 24, a frame support portion 23 extending upward from a contact position between the leg 21 and the connecting portion 22, a plate-like frame side plate portion 29 connecting the frame support portion 23 and the rear end of the leg 21, and a waste liquid tray placement portion 21a for placing the waste liquid tray 5;

[0046] An air circuit 6 for supplying compressed air;

[0047] Waste liquid tray 5;

[0048] The tire lifter frame 31 uses the frame support 23 as a guide rail to maintain vertical movement, and the tire lifter 3 and the stopper 25 of the frame 2 are driven by compressed air supplied by the air circuit 6.

[0049] Furthermore, the automobile maintenance trolley 1 is mainly composed of components such as a frame 2, a tire lifter 3, a workbench 4, a waste liquid tray 5 and an air circuit 6.

[0050] The frame 2 serves as the basic support structure of the trolley, and includes a pair of left and right frame feet 21 extending in the front-to-back direction. The frame feet 21 are angular columnar structures, and front casters 24 are respectively installed on the lower surfaces of the front and rear ends thereof, and the front casters 24 enable the trolley to move flexibly on the ground. A stopper 25 is provided behind the front caster 24, and the stopper 25 is driven by a cylinder and connected to the air circuit 6. When the position of the trolley needs to be fixed, the air circuit 6 supplies compressed air to the stopper 25, so that the stopper 25 is actuated to prevent the front caster 24 from rotating, thereby ensuring the stability of the trolley during maintenance operations.

[0051] The left and right frame feet 21 are connected by a pair of frame connecting parts 22, which are also angular column structures, enhancing the overall stability of the frame 2. A pedal stopper 26 is installed in the middle of the frame connecting part 22, providing a convenient manual stop operation mode for operators.

[0052] The frame foot 21 is also provided with a waste liquid tray placement portion 21a, which is composed of a slightly C-shaped component covering the upper and left and right front sides of the angular column-shaped frame foot 21 and ribs extending from the end of the C-shaped component to the center. The waste liquid tray 5 is placed on the waste liquid tray placement portion 21a to collect waste liquid generated during maintenance, such as cleaning liquid when cleaning tires and wheels, and attachments on tires.

[0053] Extending upward from the frame foot 21 is a frame support 23, which is a component with a slightly C-shaped plane. The left and right frame support 23 are arranged with their opening surfaces facing each other. A side guard plate 29 is installed at the lower part of the frame support 23. The side guard plate 29 can not only hide the compressed air piping in the air circuit 6, making the trolley look neat, but also effectively prevent the frame support 23 from tipping forward and backward, thereby improving the safety and stability of the trolley. The frame support 23 is connected by reinforcing plates 27a, 27b, and 27c, which further enhances the rigidity of the frame 2 and ensures the stability of the frame structure during the lifting process of the tire lift 3.

[0054] In this embodiment, the upper surfaces of the pair of first tire lift arms 32 are respectively provided with first rollers 32 a having rotation axes parallel to the first tire lift arms 32 .

[0055] Further, the tire lifter 3 is located above the frame 2 to realize the lifting operation of the tire. It is composed of a tire lifter frame 31, a tire lifter arm 32, a hydraulic cylinder 33, a hydraulic converter 34 and other components.

[0056] The tire lift frame 31 is a U-shaped structure at the front, including a pair of upper and lower transverse frame parts 31a and 31b extending left and right, and a longitudinal frame part 31c connecting the two ends of the transverse frame parts 31a and 31b. The transverse frame part 31a is a prism-shaped part, and pins 31d are installed near its two ends. These pins 31d are connected to the rod part 33a of the hydraulic cylinder 33. The longitudinal frame part 31c is a plate-shaped part extending in the vertical direction, and rollers 35 are installed on the outer side. The rollers 35 are in contact with the inner wall surface of the frame support part 23 and can roll thereon, so that the tire lift frame 31 can be smoothly lifted and lowered along the frame support part 23. The lower end of the longitudinal frame part 31c is connected through the plate-shaped transverse frame part 31b, which enhances the overall structural strength of the tire lift frame 31.

[0057] The tire lift arm 32 is a prism-shaped component, with a pair of left and right parts, extending forward from the upper end of the tire lift frame 31. The upper surface of the rear end of the tire lift arm 32 contacts the transverse frame part 31a of the tire lift frame 31, and the side surface of the rear end contacts the longitudinal frame part 31c, which ensures the stability of the tire lift arm 32 during the lifting process. On the upper surface of the tire lift arm 32, a pair of rollers 32a are coaxially installed in the front and rear, and a pair of rollers 32b are also coaxially installed in the inner side surface. When performing the tire lifting operation, select a suitable roller 32a or 32b according to the outer diameter of the tire, and place the tire on the roller. The rotation of the roller can keep the tire stable at the center position of the tire lift arm 32, which is convenient for the lifting operation of the tire. A pin 32c is installed on the outer side of the tire lift arm 32 for installing the tire fall-off prevention device 7. The tire fall-off prevention device 7 can firmly fix the tire to prevent the tire from accidentally falling off during the lifting or transportation process, thereby ensuring the safety of the maintenance operation.

[0058] The hydraulic cylinder 33 is connected to the tire lift frame 31 through the pin 31d, and its cylinder body 33b is connected to the frame connection part 22 through the pin 28. The hydraulic converter 34 is connected to the air circuit 6. When the air circuit 6 supplies compressed air to the hydraulic converter 34, the hydraulic converter 34 converts the compressed air into oil pressure, drives the rod 33a of the hydraulic cylinder 33 to extend and retract, thereby driving the tire lift frame 31 to rise and fall along the frame support part 23 to achieve the lifting and lowering operation of the tire. In this embodiment, for the load of large vehicle tires, a hydraulic hydraulic cylinder 33 is used to ensure sufficient lifting force, but for lighter loads such as ordinary vehicle tires, an air cylinder can also be used instead of the hydraulic cylinder 33 and the hydraulic converter 34. By utilizing the buffering effect generated by the air compression of the air cylinder, when removing the tire, the arm 32 is first raised to contact with the tire, and then the hub nut is loosened, the tire is pushed down and pulled out from the vehicle, which can effectively reduce the risk of the tire falling from the trolley.

[0059] In this embodiment, second rollers 32 b having rotation axes parallel to the first tire lift arms 32 are respectively provided on the side surfaces of the pair of first tire lift arms 32 , that is, the surfaces of the pair of first tire lift arms 32 facing each other.

[0060] Further, a workbench 4 is arranged at the rear of the tire lifter 3, providing a convenient platform for maintenance work. It is composed of components such as a workbench support 41, a workbench tray 42, an air conditioner box 47, etc.

[0061] The workbench pillars 41 are angular columnar components, and a pair of left and right pillars extend upward from the rear end of the frame foot 21. The lower end of the workbench pillar 41 is mounted on the upper surface of the rear end of the frame foot 21 through a slightly rectangular mounting plate 43. A tool box 43a and a rod accommodating portion 43b are provided on the mounting plate 43. The tool box 43a can be used to accommodate tools such as large impact wrenches, and the rod accommodating portion 43b is specifically used to place tools with a cylindrical lower portion such as the rod of an air screwdriver, so that operators can store and access commonly used tools conveniently. A slightly rectangular back guard plate 44 is installed on the back of the workbench pillar 41. The back guard plate 44 can not only hide the compressed air piping, but also enhance the connection rigidity between a pair of workbench pillars 41, thereby improving the stability of the workbench 4.

[0062] The workbench tray 42 is mounted on the upper end of the workbench support 41, and a variety of functional components are arranged on it. The shaft seat 42a installs the component with a slightly arc-shaped side on the workbench tray 42 through the mounting plate. In this embodiment, the shaft seat 42a is arranged on the left, right and center positions of the upper surface of the workbench tray 42, and can be used to place shaft-shaped parts such as drive shafts removed from the vehicle. The tool box 42b installs the slightly cylindrical component on the workbench tray 42 at a backward tilt, which is convenient for inserting and fixing tools such as medium-sized impact wrenches. The parts tray 42c is a small tray-shaped component arranged on the upper surface of the workbench tray 42, which can be used to organize small objects or small tools such as bolts and nuts removed from the vehicle. The handle 42d is a strip-shaped component with a slightly C-shaped front. The operator can easily move the automobile maintenance trolley 1 by holding the handle 42d.

[0063] A pair of left and right tire lifter lifting switches 45 are installed below the workbench tray 42. When the operator operates the tire lifter lifting switch 45, compressed air can be supplied to the hydraulic converter 34 by controlling the air circuit 6, thereby controlling the extension and retraction of the hydraulic cylinder 33 to achieve the lifting and lowering operation of the tire lifter 3. A stopper operating rod 46 is installed near the middle of the tire lifter lifting switch 45. The stopper operating rod 46 is connected to the air circuit 6. By operating the stopper operating rod 46, the action of the stopper 25 can be controlled to stop the front caster 24 from rotating, thereby fixing the position of the trolley. The tire lifter lifting switch 45 and the stopper operating rod 46 are centrally arranged below the workbench tray 42, so that the operator can perform the lifting and lowering operation of the tire lifter 3 and the operation of the stopper 25 without changing the position after the trolley is moved to the specified position, thereby improving the working efficiency.

[0064] The air regulator box 47 is a component made of a metal plate in a slightly cylindrical shape, and is used to store an air regulator for measuring and or adjusting tire pressure. In this embodiment, the air regulator box 47 is arranged on the left side of the front of the workbench tray 42, but it can also be arranged on either side of the workbench tray 42 according to actual needs, so that the operator can use the air regulator to detect and adjust the tire pressure.

[0065] In this embodiment, the tire lifter 3 includes a hydraulic converter 34 that generates oil pressure through compressed air supplied by an air circuit 6 and a hydraulic cylinder 33 driven by the oil pressure, and is lifted and lowered by the hydraulic cylinder 33. It also includes a tire fall-off prevention device 7 for fixing the tire on the first tire lifter arm 32, and the tire fall-off prevention device 7 can be loaded and unloaded on the outer side of each of the first tire lifter arms 32.

[0066] Furthermore, the air circuit 6 is the power supply system of the trolley, which includes an air intake cap C1, multiple air supply caps C2, a filter R1, and valves V1, V2, V3, V4 and other components connected to various pneumatic components. The air intake cap C1 can receive compressed air supply from external equipment such as a maintenance factory. The inhaled compressed air is first filtered through the filter R1 to remove impurities therein to ensure that the air entering the system is clean and extend the service life of the equipment. The filtered compressed air is distributed to various components that require power through the air supply cap C2, such as the hydraulic cylinder 33 of the tire lifter 3, the cylinder of the stopper 25, and the compressed air driven tools on the workbench 4. Valves V1, V2, V3, and V4 are used to accurately control the flow direction and flow of compressed air, thereby achieving accurate control of various pneumatic components. For example, by operating the tire lifter lifting switch 45, the opening and closing of valves V2, V3, and V4 can be controlled to adjust the flow of compressed air entering the hydraulic converter 34, thereby controlling the lifting speed of the hydraulic cylinder 33.

[0067] The waste liquid tray 5 is placed on the waste liquid tray placement part 21a of the frame foot 21, and its position is reasonably designed. When the tires and / or wheels on the tire lifter 3 are cleaned and swept, the waste liquid generated can directly fall into the waste liquid tray 5, effectively preventing the waste liquid from flowing on the ground of the maintenance site, avoiding the waste liquid from polluting the working environment, and reflecting good environmental protection performance. At the same time, it is also convenient to centrally treat the waste liquid, keep the maintenance site clean and sanitary, provide a good working environment for maintenance personnel, and indirectly improve the safety and efficiency of maintenance operations.

[0068] In this embodiment, the workbench 4 has an axle seat 42 a for placing an axle-shaped part on the workbench tray 42 , and the axle seat 42 a is composed of a plurality of components with U-shaped side surfaces arranged on the workbench tray 42 .

[0069] Furthermore, the automobile maintenance trolley 1 of this embodiment realizes the integrated design of the equipment by integrating the tire lifter 3 and the workbench 4 on one trolley, which greatly improves the convenience of transportation. The operator does not need to frequently switch the operating position between different equipment, and can complete the operations of lifting, disassembling, repairing and taking tools of the tire on the same trolley, which saves time and physical strength and effectively improves the efficiency of the maintenance work.

[0070] In terms of structural design, the reasonable structure of the frame 2, the ingenious arrangement of the rollers 32a, 32b and 35 in the tire lifter 3, and the layout of various functional components on the workbench 4 all enhance the stability and applicability of the trolley. For example, the guiding and reinforcing function of the frame support 23, the stable support of the tire by different rollers, and the orderly storage of tools and parts by various components on the workbench tray 42 all provide convenient conditions for maintenance operations.

[0071] A single air circuit 6 is used to supply compressed air as a power source, avoiding the maintenance complexity caused by multiple power systems. Operators only need to master a set of maintenance methods and tools based on the compressed air power system to maintain the entire trolley, which reduces maintenance costs and difficulties and improves the maintainability of the trolley. At the same time, the effective waste liquid collection function of the waste liquid tray 5 is both environmentally friendly and keeps the workplace clean, further improving the quality and efficiency of the entire maintenance operation.

[0072] The structure of the present invention is not limited to the above-mentioned embodiments. For example, the shapes of the components of the frame 2 and the tire lift 3 are not limited to the angular column shape, and other shapes such as cylindrical shapes can also meet the needs. In addition, according to the different maintenance objects, multiple workbench trays 4 can be set on the trolley to increase the operating space; tool box-like components can also be increased or decreased according to actual operation requirements to optimize the tool storage method. Without departing from the scope of the purpose of the present invention, other specific structures can also be changed in various ways to adapt to different maintenance scenarios and operation requirements. For example, for some small maintenance workshops, a more compact trolley design may be required. At this time, the frame size can be appropriately reduced or the component layout can be optimized; for large maintenance plants, a tire lift with a larger load-bearing capacity or more types of tool storage space may be required, and the component specifications can be adjusted accordingly or functional modules can be added. In short, the present invention has strong flexibility and scalability, and can be adjusted and improved in a variety of ways according to actual conditions.

[0073] The working principle and use process of the present invention:

[0074] Check whether the various components of the automobile maintenance trolley 1 are intact, ensure that the rollers 32a, 32b, 35 of the tire lifter 3 can rotate freely, the stopper 25 and the pedal stopper 26 function normally, the air circuit 6 is connected correctly and leak-free, and the various tool boxes, trays and other components on the workbench 4 are firmly installed. Connect the air intake cap C1 of the air circuit 6 to an external compressed air supply source, such as the compressed air system of the maintenance factory, to ensure that the compressed air can be stably supplied to the various pneumatic components of the trolley. The operator holds the handle 42d on the workbench 4, pushes or pulls the trolley, and uses the front caster 24 at the front end of the foot 21 of the frame 2 and the rear caster at the rear end to move the trolley to the working position near the automobile tire. During the movement, the trolley relies on the rolling of the casters to achieve flexible movement, which is convenient for adjusting the position in the maintenance workshop to meet the maintenance needs of different vehicles. When the trolley reaches the designated working position, operate the stopper 25. The air circuit 6 supplies compressed air to the stopper 25, driving the stopper 25 to stop the front caster 24 from rotating, thereby fixing the position of the trolley. In addition, a foot-operated stopper 26 can also be used for auxiliary fixing to ensure that the trolley will not move during the maintenance operation, providing a stable working platform for subsequent operations. According to the outer diameter of the tire, a suitable roller 32a or 32b on the tire lift arm 32 is selected. The tire is placed on the selected roller, and the tire is in contact with the roller. The tire lift lifting switch 45 under the workbench 4 is operated. The tire lift lifting switch 45 adjusts the flow of compressed air entering the hydraulic converter 34 by controlling the valves V2, V3, and V4 in the air circuit 6. The hydraulic converter 34 converts the compressed air supplied by the air circuit 6 into oil pressure, driving the rod 33a of the hydraulic cylinder 33 to extend and retract. The hydraulic cylinder 33 is connected to the tire lift frame 31 through the pin 31d. The extension and retraction of the rod 33a drives the tire lift frame 31 to rise and fall along the frame support 23. The roller 35 installed on the outer side of the longitudinal frame part 31c of the tire lift frame 31 rolls on the inner wall surface of the frame support part 23 to ensure that the tire lift frame 31 is lifted and lowered smoothly, thereby realizing the lifting and lowering operation of the tire. During the maintenance process, the operator can take tools from the corresponding position on the workbench tray 42. For example, remove or place the shaft-shaped parts from the shaft seat 42a, take out or put back the common tools such as the impact wrench from the tool box 42b, and organize small objects or small tools in the parts tray 42c to keep the work area clean and orderly and improve the work efficiency. When the compressed air-driven tool is needed, the tool is connected to the air supply port of the air circuit 6, and the compressed air is supplied through the air circuit 6 to drive the tool to work. The compressed air sucked by the air suction cap C1 is filtered by the filter R1 and distributed to the tool through the air supply cap C2. The valve V1 and other related valves control the flow direction and flow of the compressed air to ensure the normal operation of the tool. When the tire and / or wheel hub on the tire lifter 3 are cleaned, the waste liquid generated will directly fall into the waste liquid tray 5.The waste liquid tray 5 is placed on the waste liquid tray placement part 21a of the foot 21 of the frame 2. Its position design is reasonable, which can effectively collect waste liquid, prevent waste liquid from flowing on the ground of the maintenance site, and avoid polluting the working environment. When the waste liquid in the waste liquid tray 5 reaches a certain amount, the waste liquid tray 5 is removed from the waste liquid tray placement part 21a, and the waste liquid is cleaned and processed in accordance with environmental protection requirements. After the maintenance work is completed, the tire elevator lifting switch 45 is operated again to lower the tire elevator 3 to the lowest position, which is convenient for removing the tire or performing other subsequent operations, check whether the tools on the workbench 4 are returned to their positions, clean up the debris on the workbench tray 42 and the parts tray 42c, ensure that the workbench is tidy, operate the stopper 25, release the fixed state of the trolley, hold the handle 42d to move the trolley to the designated storage position, and pay attention to avoid collision and damage to the trolley during storage so that it can be used next time.

[0075] The electronic components and modules used in the invention can be parts commonly used in the market and can realize the specific functions in this case, and the specific models and sizes can be selected and adjusted according to actual needs.

[0076] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An intelligent automobile fault diagnosis and maintenance integrated machine is characterized by: include: A tire lifter (3) is used for lifting a tire, the tire lifter (3) comprising a pair of left and right first tire lifter arms (32) extending in a front-rear direction and a tire lifter frame (31) connected to rear ends of the first tire lifter arms (32); A workbench (4) is arranged at the rear of the tire lifter (3), and the workbench (4) is composed of a pair of left and right workbench pillars (41) extending upward from the rear end of the frame (2), a workbench tray (42) mounted on the upper ends of the workbench pillars (41), and an air conditioner arranged on the side of the workbench tray (42); A frame (2) for setting the tire lift (3) and the workbench (4), the frame (2) being composed of a pair of left and right feet (21) extending in the front-rear direction and a connecting portion (22) connecting the feet (21), each of the feet (21) having a front caster (24) arranged at the front end, a rear caster arranged at the rear end, a stopper (25) arranged behind the front caster (24), a frame support portion (23) extending upward from a contact position between the foot (21) and the connecting portion (22), a plate-like frame side plate portion (29) connecting the frame support portion (23) and the rear end of the foot (21), and a waste liquid tray placement portion (21a) for placing a waste liquid tray (5); an air circuit (6) for supplying compressed air; Waste liquid tray (5); The tire lift frame (31) uses the frame support (23) as a guide rail to maintain vertical movement, and the stopper (25) of the tire lift (3) and the frame (2) is driven by compressed air supplied by the air circuit (6).

2. The intelligent automobile fault diagnosis and maintenance integrated machine according to claim 1, characterized in that: The upper surfaces of the pair of first tire lift arms (32) are respectively provided with first rollers (32a) having rotation axes parallel to the first tire lift arms (32).

3. The intelligent automobile fault diagnosis and maintenance integrated machine according to claim 2, characterized in that: Second rollers (32b) with rotation axes parallel to the first tire lift arms (32) are respectively provided on the side surfaces of the pair of first tire lift arms (32), that is, on the surfaces of the pair of first tire lift arms (32) facing each other.

4. The intelligent automobile fault diagnosis and maintenance integrated machine according to claim 3, characterized in that: The tire lifter (3) comprises a hydraulic converter (34) for generating oil pressure by compressed air supplied by the air circuit (6) and a hydraulic cylinder (33) driven by the oil pressure, and is lifted and lowered by the hydraulic cylinder (33). The tire lifter (3) also comprises a tire fall-off prevention device (7) for fixing the tire on the first tire lifter arm (32), and the tire fall-off prevention device (7) is detachably connected to the outer side surface of each of the first tire lifter arms (32).

5. The intelligent automobile fault diagnosis and maintenance integrated machine according to claim 4, characterized in that: The workbench (4) has an axle seat (42a) for placing an axle-shaped part on a workbench tray (42), and the axle seat (42a) is composed of a plurality of U-shaped parts arranged on the workbench tray (42).

6. The method for using the intelligent automobile fault diagnosis and maintenance integrated machine according to claim 1, characterized in that: The following steps are involved: By pushing or pulling the trolley, the trolley is moved to a working position near the tire of the automobile using the front casters (24) and the rear casters, and then the stopper (25) is operated to stop the front casters (24) and the rear casters from rotating, thereby fixing the position of the trolley; Selecting the first roller (32a) or the second roller (32b) appropriately according to the outer diameter of the tire, and placing the tire on the selected roller on the first tire lift arm (32); The tire lifter (3) is operated by controlling the air circuit (6) to supply compressed air to the hydraulic cylinder (33), so that the hydraulic cylinder (33) is extended and retracted, thereby driving the tire lifter frame (31) to rise and fall along the frame support part (23), thereby realizing the lifting and lowering operation of the tire; During the maintenance process, tools are placed at corresponding positions on the workbench tray (42), such as placing shaft-shaped parts on the shaft seat (42a), placing commonly used tools in the tool box (42b), and arranging small objects or small tools in the parts tray (42c); When it is necessary to use a tool driven by compressed air, the tool is connected to the air supply port of the air circuit (6), and the compressed air supplied by the air circuit (6) drives the tool to work; Waste liquid generated during the maintenance process flows into the waste liquid tray (5). When the waste liquid in the waste liquid tray (5) reaches a certain amount, the waste liquid tray (5) is removed from the waste liquid tray placement part (21a) for cleaning.

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