One-key leveling control system and aerial work platform

Abstract

The utility model discloses a one-key leveling control system, which relates to the related technical field of lifting platforms and comprises a signal transmitter used for receiving and feeding back signals, a support leg oil cylinder and an oil cylinder electromagnetic valve, the support leg oil cylinder is connected with a support leg switch used for controlling motion feedback of a support leg and an inclination angle sensor used for judging the levelness of a chassis, and the inclination angle sensor is connected with the signal transmitter. The signal transmitter is in signal connection with the oil cylinder electromagnetic valve, and the oil cylinder electromagnetic valve is used for controlling oil path transmission in the extension of the supporting leg oil cylinder; data of the tilt angle sensor are transmitted through the signal transmitter, so that the oil cylinder electromagnetic valve is controlled to work in a matched mode, the oil cylinder electromagnetic valve can reasonably control work of the supporting leg oil cylinder, movement of a supporting leg is achieved, and therefore corresponding leveling work is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field related to lifting platforms, and in particular to a one-button leveling control system and an aerial work platform. Background Art

[0002] In the high-altitude industry, in order to ensure the normal operation of the work, workers are usually supported by placing a high-altitude platform.

[0003] Traditional aerial work platforms use rubber tires or rubber-coated tires, and the ground clearance of the entire vehicle is designed to be ≤30mm. Therefore, the working surface must meet certain conditions before it can be used. When the road surface is uneven, the base of the lifting platform cannot be in a horizontal state, which will affect the safety of the lifting platform.

[0004] The existing lifting platform bottom leveling is usually done by manually controlling the extension and contraction of the bottom oil cylinder, gradually adjusting the height of each leg, and leveling the base, which is low in efficiency and poor in adjustment accuracy. Utility Model Content

[0005] Purpose of the invention: The purpose of the present invention is to provide a one-button leveling control system and an aerial work platform to solve the problem of poor manual adjustment accuracy.

[0006] Technical solution: A one-button leveling control system includes a signal transmitter for receiving and feedback signals, an outrigger cylinder, and a cylinder solenoid valve. The outrigger cylinder is connected to an outrigger switch for controlling outrigger activity feedback and an inclination sensor for determining the level of the chassis. The signal transmitter is connected to the cylinder solenoid valve signal, and the cylinder solenoid valve is used to control the oil circuit transmission in the outrigger cylinder.

[0007] Preferably, the outrigger switch includes an outrigger bottoming switch and an outrigger top retraction switch, and the outrigger top retraction switch and the outrigger bottoming switch are respectively installed at the upper and lower ends of the outrigger cylinder.

[0008] Preferably, the control system further comprises a pressure sensor, which is connected to the signal transmitter and is used to record pressure data of the aerial platform.

[0009] Preferably, the signal transmitter is connected to a host controller, which is used to control the signal transmitter, and the host controller includes a leveling button.

[0010] Preferably, it further includes a power supply module, which includes a charger and a power supply. The power supply is connected to the charger, and the power supply is connected to the upper controller.

[0011] Preferably, a circuit fuse is connected between the power supply and the host controller.

[0012] An aerial work platform adopts the one-button leveling control system described above, comprising a chassis, the chassis being connected to outrigger cylinders and a lifting frame, the lifting frame being connected to a platform.

[0013] Preferably, the cylinder solenoid valve is connected to the outrigger cylinder, and the inclination sensor is connected to the chassis.

[0014] Beneficial effect: The data of the inclination sensor is transmitted through the signal transmitter, thereby cooperating with the control cylinder solenoid valve to work, so that the cylinder solenoid valve can reasonably control the work of the outrigger cylinder, realize the movement of the outrigger, and thus achieve the corresponding leveling work. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is a schematic diagram of the outrigger oil cylinder structure of the utility model;

[0017] Figure 3 This is the structural control principle diagram of the utility model.

[0018] Figure numerals: 11, power supply; 12, charger; 13, switch; 14, upper controller; 15, power converter; 16, circuit fuse; 17, control switch; 18, emergency stop switch; 19, second motor controller; 20, signal transmitter; 21, first motor controller; 22, outrigger bottoming switch; 23, outrigger feedback switch; 24, pressure sensor; 25, angle sensor; 26, inclination sensor; 29, solenoid valve; 30, outrigger cylinder; 31, chassis; 32, platform; 33, lifting frame; 38, crawler track; 39, drive motor. DETAILED DESCRIPTION

[0019] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. Example

[0020] A one-button leveling control system is used for an aerial work platform. The aerial work platform generally includes a chassis 31, a lifting frame 33 for lifting is connected above the chassis 31, and a work platform for workers to stand is connected above the lifting frame 33.

[0021] Tracks 38 are connected to both sides of the chassis 31, and a drive motor 39 is installed on the chassis 31 for driving the track 38. Furthermore, in order to achieve the leveling of the working platform, four legs are installed on the chassis 31, and the four legs are respectively located at the four end corners of the chassis 31. The legs are installed with leg cylinders 30, which are used to control the extension and retraction of the legs.

[0022] The control system includes a host controller 14, which is provided with a one-button leveling switch for controlling the operation of the system and performing leveling. The host controller 14 is used to send various control signals and operate various components to start.

[0023] The upper controller 14 is connected to a signal transmitter 20 , which is connected to various components in the system to perform signal transmission work for each component.

[0024] like Figure 2 As shown, the outrigger oil cylinder 30 is provided with an outrigger switch, which is divided into two, including an outrigger top retraction switch 23 located above the outrigger oil cylinder 30 and an outrigger bottoming switch 22 located below the outrigger oil cylinder 30. When the outrigger oil cylinder 30 retracts the outrigger to the inside, the outrigger top retraction switch 23 will control the outrigger oil cylinder 30 to close, and the outrigger bottoming switch 22 will control the outrigger oil cylinder 30 to close after the outrigger touches the ground. The outrigger bottoming switch 22 and the outrigger top retraction switch 23 are both communicated with the signal transmitter 20, and will transmit signals to the signal transmitter 20 when working, so as to facilitate the upper controller 14 to perform adjustment work.

[0025] At the same time, when the outrigger cylinder 30 is working, the internal oil circuit is connected to the cylinder solenoid valve 29, and the cylinder solenoid valve 29 and the signal transmitter 20 are communicated. In this embodiment, there are four outriggers, so there are also four cylinder solenoid valves 29, which control the four legs respectively.

[0026] Furthermore, the extension and retraction of the four legs realize the leveling of the chassis 31. The leveling system also includes a number of sensors. In this application, the sensors include an inclination sensor 26, an angle sensor 25 and a pressure sensor 24. Two inclination sensors 26 are provided, which respectively record the angle changes in the X-axis and Y-axis directions of the horizontal plane. The inclination sensor 26, the angle sensor 25 and the pressure sensor 24 are all communicated with the signal transmitter 20. When the horizontal plane is offset, the inclination sensor 26 will transmit the angle information to the signal transmitter 20 and pass it to the upper controller 14, thereby causing the signal transmitter 20 to transmit a signal to the cylinder solenoid valve 29 of the outrigger cylinder 30 to control the extension and retraction of the outrigger cylinder 30 to realize the leveling.

[0027] The angle sensor 25 is installed on the lifting frame 33 to record the angle change of the overall fork frame lifting, determine whether the platform load is overweight at different angles, and transmit the signal to the signal transmitter 20 after determining that the angle is non-zero. The inclination sensor 26 is then used to determine the actual tilt direction and then determine whether it is overweight, thereby controlling the appropriate position of the four legs to work, achieve leveling, and prevent overweight on the platform.

[0028] The pressure sensor 24 is installed on the lifting frame 33. The pressure sensor 24 is provided with two signals with different values, which serve as calibration signals for each other. The difference between the two detection values ​​of the pressure sensor 24 is used to determine that the pressure is non-zero and then transmit the two signals to the signal transmitter 20. Then, the inclination sensor 26 and the angle sensor 25 are used to determine the actual tilt direction and whether the personnel or tools on the platform 32 with different fork lifting angles are overweight. When the platform 32 is overweight, the leveling system is prohibited from working to prevent personal accidents. When the platform 32 is not overweight, a one-button leveling operation can be performed on the upper controller 14. After the outrigger retraction switches 23 above the four outrigger cylinders 30 are all in place, the system one-button leveling is completed, and the lifting and lowering of the lifting frame can also be operated through the upper controller 14.

[0029] The upper controller 14 is connected to a power supply 11, which not only supplies power to the system circuit but also drives the tracks. A power converter 15 is connected to the power supply 11 to ensure that the voltage meets the usage effect. The power supply 11 is also connected to a charger 12, which replenishes the power of the power supply 11 to achieve the system power supply effect. In order to ensure the normal power supply of the system, a loop fuse 16 is provided between the upper controller 14 and the power supply 11 to ensure the normal operation of the system's internal control loop.

[0030] Furthermore, a control switch 17 and an emergency stop switch 18 are provided in the control loop. The setting of the two switches ensures the normal operation of line start and stop and the power-off work under emergency conditions.

[0031] At the same time, the signal transmitter is also connected to the first motor controller 21 and the second motor controller 20. The first motor controller 21 and the second motor controller 20 respectively control the two crawlers at the bottom of the aerial work platform. The two crawlers work independently and are powered independently, which is convenient for adjusting the individual work of the crawlers. The overall circuit is as follows: Figure 3 shown.

[0032] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A one-button leveling control system, characterized by: It includes a signal transmitter for receiving and feeding back signals, and the signal transmitter is communicatively connected to an outrigger switch, an inclination sensor and an oil cylinder solenoid valve. The outrigger switch is used to control the outrigger activity feedback, the inclination sensor is used to determine the tilt direction of the chassis, and the oil cylinder solenoid valve is used to control the oil circuit transmission of the outrigger oil cylinder.

2. The one-button leveling control system according to claim 1, characterized in that: The outrigger switch comprises an outrigger bottoming switch and an outrigger top retraction switch, and the outrigger top retraction switch and the outrigger bottoming switch are respectively installed at the upper and lower ends of the outrigger oil cylinder.

3. The one-key leveling control system according to claim 1, characterized in that: The control system further includes a pressure sensor, which is connected to the signal transmitter and is used to record pressure data of the aerial platform.

4. The one-key leveling control system according to claim 1, characterized in that: The signal transmitter is connected to a host controller, which is used to control the signal transmitter. The host controller includes a leveling button.

5. The one-key leveling control system according to claim 4, characterized in that: It also includes a power supply module, which includes a charger and a power supply. The power supply is connected to the charger, and the power supply is connected to the upper controller.

6. The one-key leveling control system according to claim 5, characterized in that: A loop fuse is connected between the power supply and the upper controller.

7. An aerial work platform, characterized by: A one-button leveling control system comprising any one of claims 1 to 4, comprising a chassis, to which outrigger cylinders and a lifting frame are connected, and to which a platform is connected.

8. The aerial work platform according to claim 7, characterized in that: The oil cylinder solenoid valve is connected to the outrigger oil cylinder, and the inclination sensor is connected to the chassis.

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