Double-motor hydraulic jack

Abstract

The double-motor hydraulic jack comprises a bottom plate and a second motor, a first installation frame is fixed to the surface of the bottom plate in a screwed mode through bolts, a first motor is arranged on the surface of the first installation frame, an output shaft of the first motor is in transmission connection with a gear box, and the surface of a gear in the gear box is in transmission connection with a rotating shaft. An output shaft of the second motor drives a pinion to rotate, and because the pinion is meshed with a bull gear, the pinion can drive the bull gear to rotate and drive a crank connecting rod connected with the bottom of the bull gear to do eccentric motion, so that one end of the crank connecting rod drives a piston to do up-and-down reciprocating motion in an air cylinder; according to the double-motor air inflation jack, the air cylinder is arranged, so that external air can be continuously sucked into the air cylinder and exhausted to the air inflation connector after being compressed, air inflation is achieved, different parts are controlled through the double motors, the jack can jack up a vehicle and inflate tires, different requirements can be met, convenience is achieved, and practicability is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic jacks, and particularly relates to a dual-motor hydraulic jack. Background Art

[0002] A hydraulic jack is a common tool for lifting heavy objects. It uses the hydraulic principle to lift heavy objects by applying hydraulic pressure. It usually consists of a main body, a hydraulic cylinder, a pump handle, and hydraulic oil. When used for vehicle maintenance, the operator starts the motor to drive the oil pump on the surface of the motor to pump hydraulic oil into the hydraulic cylinder, thereby increasing the pressure in the hydraulic cylinder and enabling the jack to lift the vehicle.

[0003] Currently, although the jack can lift the vehicle by driving the oil pump to pump hydraulic oil into the hydraulic cylinder through the motor, when using the jack that can be conveniently carried in the vehicle to lift the vehicle for maintenance by the roadside, if the vehicle tire leaks air and needs to be inflated, an additional air pump needs to be used to inflate the tire. When the air pump is not carried, the tire cannot be inflated in time. If an air pump is carried on the vehicle, it will occupy the storage space of the vehicle, so it is very inconvenient to use. Summary of the Invention

[0004] The purpose of the utility model is to provide a dual-motor hydraulic jack to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A dual-motor hydraulic jack, comprising:

[0006] A bottom plate, on the surface of which a first mounting frame is fixed by bolt screwing, and a second mounting frame is fixed by bolt screwing to one side of the first mounting frame and the bottom plate. A first motor is provided on the surface of the first mounting frame. The output shaft of the first motor is drivingly connected to a gear box, and the surface of the gear in the gear box is drivingly connected to a rotating shaft. By driving the rotating shaft to rotate by the first motor, the rotating shaft drives the oil pump to convey hydraulic oil into the fuel tank on the surface of the bottom plate and drives the hydraulic rod on the surface of the fuel tank to rise.

[0007] A second motor, which is provided on the surface of the second mounting frame, and the output shaft of the second mounting frame is connected to a small gear. By driving the small gear to rotate by the output shaft of the second motor, when the small gear rotates, it drives the crank connecting rod on the bottom surface of the large gear to move up and down reciprocally in the air cylinder on the top of the second mounting frame for inflation.

[0008] Preferably, the small gear meshes with the large gear. The hydraulic rod is arranged in the hydraulic cylinder, and a top plate is provided at the top of the hydraulic rod.

[0009] Preferably, one end of the oil pump is connected to the fuel tank through a pipeline, and an oil inlet pipe is connected to the surface of the oil pump.

[0010] Preferably, a piston is rotatably connected to one end of the crank connecting rod located inside the air cylinder, and an inflation joint is provided at the top of the air cylinder.

[0011] Preferably, the bottom of the hydraulic cylinder is threadedly connected to the surface of the bottom plate and the hydraulic cylinder is directly connected to the fuel tank.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] When using the jack to lift the vehicle, start the first motor to work. The output shaft of the first motor drives the gear inside the transmission gear box to rotate, thereby driving the rotating shaft to rotate through the gear box. The rotating shaft is connected to the impeller inside the oil pump, so that the hydraulic oil input into the oil inlet pipe is pumped into the fuel tank by the rotating impeller inside the oil pump. And with the continuous input of hydraulic oil, the pressure in the fuel tank increases, thereby squeezing the hydraulic rod inside the hydraulic cylinder to rise, so that the vehicle is lifted by the rising hydraulic rod and the top plate, which is convenient for maintenance.

[0014] When using the jack to inflate the tire, connect the inflation joint to the valve of the tire through a pipeline, start the second motor to work. The output shaft of the second motor drives the small gear to rotate. Since the small gear meshes with the large gear, the large gear can be driven to rotate through the small gear, and the crank connecting rod connected to the bottom of the large gear is driven to perform eccentric motion. Thus, one end of the crank connecting rod drives the piston to reciprocate up and down inside the air cylinder. By repeatedly moving the piston located inside the air cylinder up and down, external air can be continuously inhaled into the air cylinder, compressed and then discharged to the inflation joint, and the gas is transported into the tire through the pipeline connected to the inflation joint, thereby realizing inflation. By using a double-motor to control different components, the jack can not only lift the vehicle but also inflate the tire, which can meet different needs conveniently and greatly improve the practicability. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is an exploded view of the present utility model.

[0017] In the figure: 1, bottom plate; 2, first mounting bracket; 3, second mounting bracket; 4, first motor; 5, gear box; 6, rotating shaft; 7, oil pump; 8, fuel tank; 9, hydraulic rod; 10, second motor; 11, small gear; 12, large gear; 13, crank connecting rod; 14, air cylinder; 15, hydraulic cylinder; 16, top plate; 17, oil inlet pipe; 18, piston; 19, inflation joint. Detailed Embodiments

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] The present utility model provides a double-motor hydraulic jack as Figure 1-2 shown, including:

[0020] A bottom plate 1, on the surface of the bottom plate 1, a first mounting bracket 2 is fixedly connected by bolts, and on one side of the first mounting bracket 2, a second mounting bracket 3 is fixedly connected to the bottom plate 1 by bolts. On the surface of the first mounting bracket 2, a first motor 4 is provided. The output shaft of the first motor 4 is drivingly connected to a gear box 5, and the surface of the gear in the gear box 5 is drivingly connected to a rotating shaft 6. By driving the rotating shaft 6 to rotate through the first motor 4, the rotating shaft 6 drives an oil pump 7 to convey hydraulic oil into a fuel tank 8 on the surface of the bottom plate 1 and drives a hydraulic rod 9 on the surface of the fuel tank 8 to rise.

[0021] A second motor 10, the second motor 10 is provided on the surface of the second mounting bracket 3, and the output shaft of the second mounting bracket 3 is connected to a small gear 11. By driving the small gear 11 to rotate through the output shaft of the second motor 10, when the small gear 11 rotates, a crank connecting rod 13 on the bottom surface of a large gear 12 reciprocates up and down in a cylinder 14 at the top of the second mounting bracket 3 to inflate.

[0022] The small gear 11 meshes with the large gear 12. The hydraulic rod 9 is arranged in a hydraulic cylinder 15, and a top plate 16 is provided at the top of the hydraulic rod 9.

[0023] One end of the oil pump 7 is connected to the fuel tank 8 through a pipeline, and an oil inlet pipe 17 is connected to the surface of the oil pump 7. Through the oil inlet pipe 17, hydraulic oil can be introduced into the oil pump 7, and the oil pump 7 pumps the hydraulic oil into the fuel tank 8.

[0024] One end of the crank connecting rod 13 located in the cylinder 14 is rotatably connected to a piston 18. An inflation joint 19 is provided at the top of the cylinder 14. The inflation joint 19 can be connected to a pipeline for inflation, so that the tire can be inflated by connecting to the valve of the tire through the pipeline.

[0025] The bottom of the hydraulic cylinder 15 is threadedly connected to the surface of the bottom plate 1, and the hydraulic cylinder 15 is directly connected to the fuel tank 8, which is convenient for the hydraulic oil entering the fuel tank 8 to enter the hydraulic cylinder 15 and squeeze the hydraulic rod 9 in the hydraulic cylinder 15 to rise.

[0026] When using this double - motor hydraulic jack to lift a vehicle, start the first motor 4. The output shaft of the first motor 4 drives the gears in the transmission gearbox 5 to rotate. Thus, the rotating shaft 6 is driven by the gearbox 5. The rotating shaft 6 is connected to the impeller in the oil pump 7. Therefore, the hydraulic oil input into the oil inlet pipe 17 is pumped into the oil tank 8 by the rotating impeller in the oil pump 7. With the continuous input of hydraulic oil, the pressure in the oil tank 8 increases, squeezing the hydraulic rod 9 in the hydraulic cylinder 15 to rise. Thus, the vehicle is lifted by the rising hydraulic rod 9 and the top plate 16, which is convenient for maintenance.

[0027] When using the jack to inflate a tire, connect the inflation joint 19 to the valve of the tire through a pipe. Start the second motor 10. The output shaft of the second motor 10 drives the pinion 11 to rotate. Since the pinion 11 meshes with the large gear 12, the large gear 12 can be driven to rotate by the pinion 11, and the crank - connecting rod 13 connected to the bottom of the large gear 12 performs an eccentric motion. Thus, one end of the crank - connecting rod 13 drives the piston 18 to move up and down reciprocally in the air cylinder 14. By repeatedly moving the piston 18 in the air cylinder 14 up and down, external air can be continuously sucked into the air cylinder 14, compressed, and then discharged to the inflation joint 19. The gas is then transported into the tire through the pipe connected to the inflation joint 19, thus achieving inflation. By using a double - motor to control different components, the jack can not only lift the vehicle but also inflate the tire, which can meet different needs conveniently and greatly improve the practicality.

[0028] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A double-motor hydraulic jack, characterized in that, Comprising: A bottom plate (1), on the surface of the bottom plate (1), a first mounting bracket (2) is fixedly connected by bolts, and on one side of the first mounting bracket (2), a second mounting bracket (3) is fixedly connected to the bottom plate (1) by bolts. On the surface of the first mounting bracket (2), a first motor (4) is provided. The output shaft of the first motor (4) is drivingly connected to a gear box (5), and the surface of the gear in the gear box (5) is drivingly connected to a rotating shaft (6). By driving the rotating shaft (6) to rotate through the first motor (4), the rotating shaft (6) drives an oil pump (7) to convey hydraulic oil into an oil tank (8) on the surface of the bottom plate (1) and drives a hydraulic rod (9) on the surface of the oil tank (8) to rise; A second motor (10), the second motor (10) is arranged on the surface of the second mounting bracket (3), and the output shaft of the second mounting bracket (3) is connected to a small gear (11). By driving the small gear (11) to rotate through the output shaft of the second motor (10), when the small gear (11) rotates, a crank connecting rod (13) on the bottom surface of a large gear (12) reciprocates up and down in an air cylinder (14) at the top of the second mounting bracket (3) for inflation.

2. The double-motor hydraulic jack according to claim 1, characterized in that: The small gear (11) meshes with the large gear (12), the hydraulic rod (9) is arranged in a hydraulic cylinder (15), and a top plate (16) is provided at the top of the hydraulic rod (9).

3. A double-motor hydraulic jack according to claim 1, characterized in that: One end of the oil pump (7) is connected to the oil tank (8) through a pipeline, and an oil inlet pipe (17) is connected to the surface of the oil pump (7).

4. A double-motor hydraulic jack according to claim 1, characterized in that: One end of the crank connecting rod (13) located in the air cylinder (14) is rotatably connected to a piston (18), and an inflation joint (19) is provided at the top of the air cylinder (14).

5. A dual-motor hydraulic jack according to claim 2, characterized in that: The bottom of the hydraulic cylinder (15) is threadedly connected to the surface of the bottom plate (1), and the hydraulic cylinder (15) is directly connected to the oil tank (8).

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