CN207618973U - Vehicle-mounted lifting platform - Google Patents

Abstract

The utility model discloses carry hoistable platform, including pedestal, the wheel being installed in four corner of base bottom, the fork-shearing frame being installed in pedestal, the platform that is installed in fork-shearing frame and the hydraulic system for driving fork-shearing frame oscilaltion；This vehicle-mounted lifting platform is not only easy to remove, and platform is under the promotion of hydraulic system, smoothly it can increase and decline, hydraulic system is directly to drive gear oil pump by electric motor, pressure oil output pushes directly on drive cylinder cylinder through two position, three-way electromagnetic change valve, drive cylinder cylinder has driven platform to move up and down, and greatly facilitates the wiring of testing crew.Hydraulic system structure is compact simultaneously, operate steadily, good speed adjustment features, combination is flexible, installing engineering amount is small, easily operated and maintenance.

Description

Vehicle lifting platform

technical field

The utility model relates to transportation and loading equipment, in particular to a vehicle-mounted lifting platform.

Background technique

During the electric power field test, the testers need to complete the tedious wiring work, and the wiring work places are high and low. When wiring at high places, they need to stand and raise their heads and stretch their hands. Working in this posture for a long time will hurt the testers. adverse effects on physical and mental health. And the test personnel often need to carry a variety of wiring tools, which are various and heavy, which brings inconvenience to the wiring work. Under such circumstances, the on-site wiring work is very difficult, which greatly reduces the work efficiency.

Contents of the invention

The purpose of the utility model is to overcome the shortcomings of the above-mentioned prior art, and provide a vehicle-mounted lifting platform, so as to facilitate field wiring operations of electric power and improve work efficiency.

In order to achieve the above object, the technical solution of the utility model is:

The vehicle-mounted lifting platform includes a base, wheels installed in the four corners of the bottom of the base, a scissor frame installed in the base, a platform installed in the scissor frame, and a hydraulic system for driving the scissor frame up and down; wherein,

The hydraulic system includes a fuel tank, an electric motor, a gear oil pump, a one-way valve, a two-position three-way electromagnetic reversing valve, a drive cylinder, an overflow valve, and a one-way throttle valve; hydraulic oil is housed in the oil tank, and the gear oil pump The oil inlet is connected to the oil tank, and the motor is used to drive the gear oil pump to absorb oil from the oil tank. The oil outlet of the gear oil pump is connected to the inlet of the one-way valve, and the outlet of the one-way valve is connected to the two-position three-way electromagnetic reversing valve. The left inlet of the two-position three-way electromagnetic reversing valve is connected with the liquid inlet of the driving cylinder, and the driving cylinder is used to drive the scissors up and down; the one-way throttle valve is installed on the two-position three-way In the pipeline connecting the left outlet of the electromagnetic reversing valve and the liquid inlet of the drive cylinder, it is used to adjust the speed of the scissor frame when it is lowered; the overflow valve is installed on the oil outlet of the gear oil pump and the one-way The inlet of the valve is connected to the pipeline.

A push handle is installed on the right side of the base.

An electrical control system is installed on the side of the push handle close to the base, and the electrical control system is used to control the hydraulic transmission direction and transmission speed of the hydraulic system.

The hydraulic oil is No. 32 anti-wear hydraulic oil.

The wheels are driven to rotate by a driving motor, and the driving motor is connected with an electric control system, and the operation of the driving motor is controlled by the electric control system.

Compared with the prior art, the utility model has the beneficial effects of:

The vehicle-mounted lifting platform provided by this embodiment is not only easy to move, but also the platform can be raised and lowered smoothly under the promotion of the hydraulic system. The hydraulic system is directly driven by the motor and the gear oil pump. Directly push the drive cylinder to the valve, and the drive cylinder drives the platform to move up and down, which greatly facilitates the wiring of the test personnel. At the same time, the hydraulic system is compact in structure, stable in operation, good in speed regulation, flexible in combination, small in installation quantity, and easy to operate and maintain.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the vehicle-mounted lifting platform provided by the embodiment of the present invention;

Fig. 2 is the structural schematic diagram of the hydraulic system;

In the figure: 1. base; 2. wheels; 3. scissor frame; 4. platform; 5. push handle; 6. electrical control system; 11. oil tank; Valve; 15. Two-position three-way electromagnetic reversing valve; 16. Drive oil cylinder; 17. Relief valve; 18. One-way throttle valve.

Detailed ways

The content of the present utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Example:

Referring to Fig. 1, it is a schematic diagram of the overall structure of the vehicle-mounted lifting platform provided by the present embodiment. The lifting platform includes a base 1, wheels 2 installed in the four corners of the bottom of the base 1, a scissor frame 3 installed in the base 1, A platform 4 installed in the scissor frame 3 and a hydraulic system for driving the scissor frame up and down. By installing the wheels 2 on the four corners of the base 1, the movement of the entire vehicle-mounted lifting platform can be facilitated, so as to facilitate the on-site wiring of test personnel.

Wherein, as shown in Figure 2, the hydraulic system includes a fuel tank 11, an electric motor 12, a gear oil pump 13, a one-way valve 14, a two-position three-way electromagnetic reversing valve 15, a driving cylinder 16, an overflow valve 17 and a one-way joint Flow valve 18. Wherein, the oil tank 11 is equipped with hydraulic oil, the oil inlet of the gear oil pump 13 is connected with the oil tank, the motor 12 is used to drive the gear oil pump 13 to absorb oil from the oil tank 11, the oil outlet of the gear oil pump 13 and the one-way valve 14 The inlet is connected, the outlet of the one-way valve 14 is connected with the left inlet of the two-position three-way electromagnetic reversing valve 15, and the left outlet of the two-position three-way electromagnetic reversing valve 15 is connected with the liquid inlet of the drive cylinder 16 , the drive cylinder 16 is used to drive the scissor frame 3 up and down; the one-way throttle valve 18 is installed in the pipeline connected between the left outlet of the two-position three-way electromagnetic reversing valve 15 and the liquid inlet of the drive cylinder 16, It is used to adjust the speed of the scissor frame 3 when it descends; the overflow valve 17 is installed in the pipeline connected between the oil outlet of the gear oil pump and the inlet of the check valve, so as to prevent the entire hydraulic system from malfunctioning due to overpressure. The working principle of the hydraulic system: the motor 12 drives the gear oil pump 13 to absorb oil from the oil tank 11, the gear oil pump 13 converts the mechanical energy of the motor 12 into the pressure energy of the liquid, the gear oil pump 13 rotates, and the output pressure oil is distributed through the one-way valve 14, The pressure oil is input into the drive cylinder 16 to realize the lifting of the scissor frame 3 and the platform 4 . When descending, the two-position three-way electromagnetic reversing valve 15 opens the oil return circuit, and the hydraulic oil in the drive oil cylinder 16 returns under the action of gravity, so that the fork frame 3 and the platform 4 are lowered. A one-way throttle valve 18 is provided in the pipeline connected by the left outlet of the two-position three-way electromagnetic reversing valve 15 and the liquid inlet of the drive cylinder 16, which can adjust the speed of the platform 4 when it descends.

Among them, to realize the rising process of the platform 4, its hydraulic circuit is: fuel tank 11—gear oil pump 13—one-way valve 14—left position of two-position three-way electromagnetic reversing valve 15—one-way throttle valve 18— - drive oil cylinder 16 - left position of two-position three-way electromagnetic reversing valve 15 - oil tank 11.

To realize the descending process of platform 4, its hydraulic circuit is: oil tank 11—gear oil pump 13—one-way valve 14—right position of two-position three-way electromagnetic reversing valve 15—drive cylinder 16—two-position three-way The right position of the electromagnetic reversing valve 15 - fuel tank 11.

Realize that the platform 4 is in a static state, and its hydraulic circuit is: oil tank 11 - gear oil pump 13 - one-way valve 14 - middle position of two-position three-way electromagnetic reversing valve 15 - oil tank.

From the above analysis, it can be known that the vehicle-mounted lifting platform provided by this embodiment is not only easy to move, but also can be raised and lowered smoothly under the promotion of the hydraulic system. The hydraulic system is directly driven by the motor. The gear oil pump outputs pressure oil through two The three-way electromagnetic reversing valve directly pushes the drive cylinder, which drives the platform to move up and down, which greatly facilitates the wiring of the test personnel. At the same time, the hydraulic system has the advantages of compact structure, stable operation, good speed regulation performance, flexible combination, small amount of installation work, and easy operation and maintenance.

As a preference of this embodiment, a push handle 5 is installed on the right side of the above-mentioned base 1, so as to push the entire vehicle-mounted lifting platform.

As another preference of this embodiment, an electrical control system 6 is installed on the side of the push handle 5 close to the base 1, and the electrical control system 6 is used to control the hydraulic transmission direction and transmission speed of the hydraulic system to further It is convenient for the experimenter to operate.

As another preference of this embodiment, the above-mentioned hydraulic oil is No. 32 anti-wear hydraulic oil, so as to improve the working performance and service life of the hydraulic system.

As a further preference of this embodiment, the above-mentioned wheel 2 is driven to rotate by a driving motor, and the driving motor is connected to an electrical control system 6, and the electrical control system 6 controls the operation of the driving motor. The forward and backward of the vehicle-mounted lifting platform and the speed of forward and backward are controlled by the electrical control system to further improve the working efficiency of the test personnel.

Of course, it should be noted that the electrical control system involved in this application is a prior art, so its specific structure and working principle will not be described in detail in this embodiment.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present utility model, and its purpose is to allow those of ordinary skill in the art to understand the content of the present utility model and implement it accordingly, and cannot limit the protection scope of the present utility model with this . All equivalent changes or modifications made according to the essence of the content of the present invention shall fall within the scope of protection of the present invention.

Claims (4)

1. The vehicle-mounted lifting platform is characterized by comprising a base, wheels arranged in four corners of the bottom of the base, a fork frame arranged in the base, a platform arranged in the fork frame and a hydraulic system for driving the fork frame to lift up and down; wherein,

the hydraulic system comprises an oil tank, a motor, a gear oil pump, a one-way valve, a two-position three-way electromagnetic directional valve, a driving oil cylinder, an overflow valve and a one-way throttle valve; the hydraulic oil is filled in the oil tank, an oil inlet of the gear oil pump is communicated with the oil tank, the motor is used for driving the gear oil pump to absorb oil from the oil tank, an oil outlet of the gear oil pump is communicated with an inlet of the one-way valve, an outlet of the one-way valve is communicated with a left inlet of the two-position three-way electromagnetic directional valve, a left outlet of the two-position three-way electromagnetic directional valve is communicated with a liquid inlet of the driving oil cylinder, and the driving oil cylinder is used for driving the scissor rack; the one-way throttle valve is arranged in a pipeline communicated with a left outlet of the two-position three-way electromagnetic directional valve and a liquid inlet of the driving oil cylinder and is used for adjusting the speed of the shear fork frame during descending; the overflow valve is arranged in a pipeline communicated with an oil outlet of the gear oil pump and an inlet of the one-way valve;

and a pushing handrail is arranged on the right side edge of the base.

2. The lift platform of claim 1, wherein an electrical control system is mounted in the side of the armrest proximate the base for controlling the hydraulic drive direction and drive speed of the hydraulic system.

3. The vehicle lift platform of claim 1, wherein said hydraulic oil is 32 gauge anti-wear hydraulic oil.

4. The vehicle lift platform of claim 1, wherein said wheels are rotated by a drive motor, said drive motor being connected to an electrical control system, said electrical control system controlling operation of said drive motor.