Protection system for preventing accidental air loss of pneumatic lifting air cylinder

Abstract

A protection system for preventing accidental air loss of a pneumatic lifting cylinder is characterized in that an air source is communicated with an air supply triple piece, the air supply triple piece is communicated with a pressure increasing valve, and the pressure increasing valve is communicated with an air distributing block through a one-way valve; a branch at the bottom of the air distribution block is communicated with a deflector rod valve and a brake; the deflector rod valve and the brake are communicated with an air cylinder; a branch in the middle of the air distribution block is communicated with an overflow valve, the overflow valve is communicated with a handle valve, the handle valve is connected to a throttling valve in a downward backflow mode, a branch behind the throttling valve is connected to the top of the air distribution block, and a branch behind the throttling valve is communicated with an air control valve; an overflow branch at the top of the overflow valve is communicated with the top of the gas distribution block; a branch at the top of the air distribution block is communicated with the pneumatic control valve, the pneumatic control valve is communicated with the quick discharge valve, and the quick discharge valve is communicated with the lifting host; a branch at the bottom of the gas distribution block is communicated with the quick discharge valve; a branch at the top of the air distribution block communicates with a one-way valve which communicates with a pressure reducing valve, and the pressure reducing valve communicates with a quick discharge valve. According to the utility model, the loss caused by falling due to air loss is completely eradicated.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting mainframes, in particular to a protection system for preventing accidental air loss of a pneumatic lifting cylinder. Background Art

[0002] With the development of automation, compressed air-powered lifting cylinder-type handling manipulators are increasingly used. Compared with traditional electric handling machines, compressed air-powered lifting machines are simple, reliable, clean, and easy to maintain. However, once the compressed air power source is accidentally lost, the pneumatic lifting machine will instantly discharge gas, causing the handling machine to fall. This patent uses a set of air circuit logic control to ensure that once the pipeline from the operating handle to the compressed air inlet end is broken and the air pressure is lost, the cylinder can be instantly closed, so that the lifting main cylinder will not fall, thereby ensuring safe and reliable handling. Utility Model Content

[0003] In order to solve the above problems existing in the prior art, the utility model provides a protection system for a pneumatic lifting cylinder to prevent accidental air loss.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A protection system for a pneumatic lifting cylinder to prevent accidental air loss, wherein the air source is connected to an air supply triplet, the air supply triplet is connected to a boost valve, the boost valve is connected to an air distributor block through a one-way valve; a branch at the bottom of the air distributor block is connected to a lever valve and a brake, the lever valve and the brake are connected to the cylinder; a branch in the middle of the air distributor block is connected to an overflow valve, the overflow valve is connected to a handle valve, the handle valve is connected to a throttle valve for downward reflux, a branch after the throttle valve is connected to the top of the air distributor block, and another branch is connected to an air control valve; wherein, an overflow branch at the top of the overflow valve is connected to the top of the air distributor block; a branch at the top of the air distributor block is connected to the air control valve, the air control valve is connected to a quick exhaust valve, and the quick exhaust valve is connected to a lifting main machine; a branch at the bottom of the air distributor block is connected to the quick exhaust valve; a branch at the top of the air distributor block is connected to the one-way valve, the one-way valve is connected to a pressure reducing valve, and the pressure reducing valve is connected to the quick exhaust valve.

[0006] The utility model also has the following additional technical features:

[0007] As a further specific optimization of the technical solution of the utility model: the model of the air supply triplex is AWU40-D40.

[0008] As a further specific optimization of the technical solution of the utility model: the model of the booster valve is VBA20A-03G; the model of the one-way valve is AKH06-00; and the model of the gas distributor block is WH-A1-205.

[0009] As a further specific optimization of the technical solution of the utility model: the model of the lever valve is TAC-41V; the model of the handle valve is BPA9200; the model of the throttle valve is GLA-3 / 8-QS-10-DQ.

[0010] As a further specific optimization of the technical solution of the utility model: the model of the air control valve is 31P+34AL; the model of the quick exhaust valve is SEU-1 / 8; the model of the pressure reducing valve is IR1020-01G.

[0011] As a further specific optimization of the technical solution of the utility model: the model of the lifting main machine is ATL-100.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] The utility model can eliminate the hidden danger of sudden falling of the pneumatic spreader due to sudden loss of compressed air or rupture of the compressed air pipeline, so that the pneumatic spreader can be truly safe, clean and reliable, the maintenance cost is greatly reduced, the loss caused by falling due to loss of air is eliminated, and more value is created for customers. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the protection system structure of the utility model. DETAILED DESCRIPTION

[0015] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0016] A protection system for preventing accidental air loss in a pneumatic lifting cylinder, wherein an air source is connected to an air supply triplet, which is connected to a boost valve, which is connected to an air distributor block via a one-way valve; a branch at the bottom of the air distributor block is connected to a lever valve and a brake, which are connected to the cylinder; a branch in the middle of the air distributor block is connected to an overflow valve, which is connected to a handle valve, which is connected to a throttle valve for downward reflux, a branch after the throttle valve is connected to the top of the air distributor block, and another branch is connected to an air control valve; wherein an overflow branch at the top of the overflow valve is connected to the top of the air distributor block; a branch at the top of the air distributor block is connected to an air control valve, which is connected to a quick exhaust valve, which is connected to a lifting main engine; a branch at the bottom of the air distributor block is connected to the quick exhaust valve; a branch at the top of the air distributor block is connected to a one-way valve, which is connected to a pressure reducing valve, which is connected to a quick exhaust valve.

[0017] In actual use, the model of the air supply triplex is AWU40-D40. The model of the booster valve is VBA20A-03G; the model of the check valve is AKH06-00; the model of the air distributor is WH-A1-205. The model of the lever valve is TAC-41V; the model of the handle valve is BPA9200; the model of the throttle valve is GLA-3 / 8-QS-10-DQ. The model of the air control valve is 31P+34AL; the model of the quick exhaust valve is SEU-1 / 8; the model of the pressure reducing valve is IR1020-01G. The model of the lifting host is ATL-100.

[0018] Working principle of the protection system of the pneumatic lifting cylinder against accidental loss of air:

[0019] The gas source P is taken in from the gas supply triplex, and after being purified by the gas supply triplex, it enters the booster valve. After the booster valve stabilizes and boosts the pressure of the gas source, the gas source is input into the gas distribution block.

[0020] The gas in the gas distributor block enters the handle valve BPA9200 through the overflow valve TYP-200. When the rising button of the handle valve BPA9200 is pressed, the gas in the gas distributor block flows back downward through the handle valve BPA9200.

[0021] At this time, the gas is split, and one gas presses down the gas control valve 31P+34AL, so that the other gas can enter the lifting host ATL-100 normally through the gas control valve 501A. Under normal circumstances, this gas exists in the cylinder. Only when the descending button in the handle valve BPA9200 is pressed down to exhaust, the gas of the lifting host ATL-100 will flow back and be discharged. When the gas of the throttle valve GLA-3 / 8-QS-10-DQ is cut off or the pipeline is accidentally cracked or there is no gas, the gas control valve 31P+34AL returns to its position through the spring. At this time, the gas control valve 501A is closed, and the gas in the lifting host ATL-100 is held back without reflux. At this time, the lifting host ATL-100 will not descend, which plays a role in accidental gas outage protection.

[0022] The above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention but merely represents selected embodiments of the present invention.

Claims

1. A protection system for a pneumatic lifting cylinder to prevent accidental loss of air, characterized in that: The air source is connected to the air supply triplet, the air supply triplet is connected to the boost valve, the boost valve is connected to the air distributor block through the one-way valve; a branch at the bottom of the air distributor block is connected to the lever valve and the brake, the lever valve and the brake are connected to the cylinder; a branch in the middle of the air distributor block is connected to the overflow valve, the overflow valve is connected to the handle valve, the handle valve is connected to the throttle valve for downward reflux, a branch after the throttle valve is connected to the top of the air distributor block, and another branch is connected to the air control valve; wherein, the overflow branch at the top of the overflow valve is connected to the top of the air distributor block; a branch at the top of the air distributor block is connected to the air control valve, the air control valve is connected to the quick exhaust valve, and the quick exhaust valve is connected to the lifting main engine; a branch at the bottom of the air distributor block is connected to the quick exhaust valve; a branch at the top of the air distributor block is connected to the one-way valve, the one-way valve is connected to the pressure reducing valve, and the pressure reducing valve is connected to the quick exhaust valve.

2. A protection system for preventing accidental loss of air in a pneumatic lifting cylinder according to claim 1, characterized in that: The model of the air supply triplex is AWU40-D40.

3. A protection system for preventing accidental loss of air in a pneumatic lifting cylinder according to claim 1, characterized in that: The model of the booster valve is VBA20A-03G; the model of the check valve is AKH06-00; the model of the gas distributor block is WH-A1-205.

4. A protection system for preventing accidental loss of air in a pneumatic lifting cylinder according to claim 1, characterized in that: The model of the lever valve is TAC-41V; the model of the handle valve is BPA9200; the model of the throttle valve is GLA-3 / 8-QS-10-DQ.

5. A protection system for preventing accidental loss of air in a pneumatic lifting cylinder according to claim 1, characterized in that: The model of the air control valve is 31P+34AL; the model of the quick exhaust valve is SEU-1 / 8; the model of the pressure reducing valve is IR1020-01G.

6. A protection system for preventing accidental loss of air in a pneumatic lifting cylinder according to claim 1, characterized in that: The model of the lifting host is ATL-100.

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