Pneumatic switch for controlling lifting mechanism

Abstract

The utility model discloses a pneumatic switch for controlling a lifting mechanism in the technical field of control switches, which comprises an air storage tank, a manual control valve, a pneumatic control stroke regulating valve and an integrated control unit, a first pipeline is communicated between the air storage tank and the manual control valve, a second pipeline is communicated between the manual control valve and the pneumatic control stroke regulating valve, and the integrated control unit is connected with the pneumatic control stroke regulating valve. A third pipeline is communicated between the pneumatic control stroke adjusting valve and the integrated control unit, a fourth pipeline is communicated between the integrated control unit and the hand control valve, and the hand control valve is provided with an air source port in butt joint with the first pipeline, a first lifting air port in butt joint with the second pipeline and a first descending air port in butt joint with the fourth pipeline. The utility model solves the problems that the existing button type switch needs to be electrified, has high failure rate, is unfavorable for a driver to stably operate and control, has power utilization risk caused by short circuit and the like, affects the operation experience of the driver, and is unfavorable for people to use.

Description

Technical Field

[0001] The utility model relates to the technical field of control switches, in particular to a pneumatic switch for controlling a lifting mechanism. Background Art

[0002] The hydraulic lifting mechanism is one of the important mechanisms for loading and unloading cargo on a tractor. The hydraulic lifting mechanism can quickly realize the loading / unloading process of cargo boxes or containers in ports, greatly improving the efficiency of logistics transportation. In order to facilitate the raising and lowering of the hydraulic lift, it is often necessary to control the movement of the lifting valve through a button switch (i.e., solenoid valve) installed in the cab to control the lifting of the oil cylinder. The existing button switch needs to be powered on, and its failure rate is high, which is not conducive to the driver's stable operation. There is also the risk of electricity consumption caused by circuit short circuit, which affects the driver's operating experience and is not conducive to people's use. Therefore, a person skilled in the art provides a pneumatic switch for controlling the lifting mechanism to solve the problems raised in the above background technology. Utility Model Content

[0003] The purpose of the present utility model is to provide a pneumatic switch for controlling a lifting mechanism, so as to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned objectives, the present utility model provides the following technical solutions: a pneumatic switch for controlling a lifting mechanism, comprising an air tank, a manual valve, an air-controlled stroke regulating valve and an integrated control unit, wherein a first pipeline is connected between the air tank and the manual valve, a second pipeline is connected between the manual valve and the air-controlled stroke regulating valve, a third pipeline is connected between the air-controlled stroke regulating valve and the integrated control unit, and a fourth pipeline is connected between the integrated control unit and the manual valve.

[0005] Preferably, the manual valve is provided with an air source port connected to the first pipeline, a first lifting air port connected to the second pipeline, and a first descending air port connected to the fourth pipeline.

[0006] Preferably, the air-controlled stroke regulating valve is provided with an air inlet connected to the second pipeline and an air outlet connected to the third pipeline, and the air-controlled stroke regulating valve is also provided with an exhaust port.

[0007] Preferably, the integrated control unit is provided with a second lifting air port connected to the third pipeline and a second descending air port connected to the fourth pipeline.

[0008] Compared with the prior art, the beneficial effects of the present invention are:

[0009] 1. In the present invention, the overall control principle of the lifting mechanism switch is simple and is also conducive to practical operation applications. At the same time, the device has high response accuracy, and precise control is achieved by adjusting the air pressure. It can also realize frequent control of the lifting mechanism and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0011] In the figure: 1. Air storage tank; 2. Manual valve; 3. Air-controlled stroke regulating valve; 4. Integrated control unit; 5. First pipeline; 6. Second pipeline; 7. Third pipeline; 8. Fourth pipeline; 9. Air source port; 10. First lifting air port; 11. First descending air port; 12. Air inlet; 13. Air outlet; 14. Exhaust port; 15. Second lifting air port; 16. Second descending air port. DETAILED DESCRIPTION

[0012] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0013] See also Figure 1 In an embodiment of the utility model, a pneumatic switch for controlling a lifting mechanism includes an air tank 1, a manual valve 2, an air-controlled stroke regulating valve 3 and an integrated control unit 4. A first pipeline 5 is connected between the air tank 1 and the manual valve 2, a second pipeline 6 is connected between the manual valve 2 and the air-controlled stroke regulating valve 3, a third pipeline 7 is connected between the air-controlled stroke regulating valve 3 and the integrated control unit 4, and a fourth pipeline 8 is connected between the integrated control unit 4 and the manual valve 2.

[0014] The air storage tank 1 supplies air to the manual valve 2 through the first pipeline 5. The selected manual valve 2 is a bidirectionally operable valve. It passes through the external air source of the vehicle and is provided with a second pipeline 6, a third pipeline 7 and a fourth pipeline 8 to realize the connection between other components. The manual valve 2 and the air-controlled stroke regulating valve 3 are controlled and connected to the integrated control unit 4 to realize the lifting, lowering and intermediate stop functions of the lifting mechanism.

[0015] Specifically, the manual valve 2 is respectively provided with an air source port 9 connected to the first pipeline 5, a first lifting air port 10 connected to the second pipeline 6, and a first descending air port 11 connected to the fourth pipeline 8. The air-controlled stroke regulating valve 3 is respectively provided with an air inlet 12 connected to the second pipeline 6 and an air outlet 13 connected to the third pipeline 7. The air-controlled stroke regulating valve 3 is also provided with an exhaust port 14. The integrated control unit 4 is respectively provided with a second lifting air port 15 connected to the third pipeline 7 and a second descending air port 16 connected to the fourth pipeline 8.

[0016] The lifting air port mainly plays the role of controlling the lifting action and providing pneumatic pressure in the pneumatic lifting system, and the descending air port mainly plays the role of controlling the descending action and reducing the pneumatic pressure in the pneumatic lifting system. Specifically, the lifting air port and the descending air port control the lifting, stopping and descending actions of the lifting mechanism by connecting the manual valve 2 and the integrated control unit 4, ensuring safe, remote and flexible control of the operation. The main function of the pneumatic stroke regulating valve 3 is to adjust the flow rate and pressure, etc., so that the flow characteristics of the gas are more stable. The pneumatic stroke regulating valve 3 can save energy by controlling the flow rate of the gas to keep it at a lower level.

[0017] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pneumatic switch for controlling a lifting mechanism, characterized in that: The invention comprises an air storage tank (1), a manual valve (2), an air-controlled stroke regulating valve (3) and an integrated control unit (4); a first pipeline (5) is connected between the air storage tank (1) and the manual valve (2); a second pipeline (6) is connected between the manual valve (2) and the air-controlled stroke regulating valve (3); a third pipeline (7) is connected between the air-controlled stroke regulating valve (3) and the integrated control unit (4); and a fourth pipeline (8) is connected between the integrated control unit (4) and the manual valve (2).

2. A pneumatic switch for controlling a lifting mechanism according to claim 1, characterized in that: The manual valve (2) is respectively provided with an air source port (9) connected to the first pipeline (5), a first lifting air port (10) connected to the second pipeline (6), and a first descending air port (11) connected to the fourth pipeline (8).

3. A pneumatic switch for controlling a lifting mechanism according to claim 2, characterized in that: The air-controlled stroke regulating valve (3) is provided with an air inlet (12) connected to the second pipeline (6) and an air outlet (13) connected to the third pipeline (7), and the air-controlled stroke regulating valve (3) is also provided with an exhaust port (14).

4. A pneumatic switch for controlling a lifting mechanism according to claim 3, characterized in that: The integrated control unit (4) is provided with a second lifting air port (15) connected to the third pipeline (7) and a second descending air port (16) connected to the fourth pipeline (8).

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