Full-automatic free-body hydrostatic strength testing equipment for fire extinguisher cylinders

Abstract

The present invention discloses a fully automatic free-body hydrostatic strength detection device for fire extinguisher cylinders, which includes a frame, a low-pressure water pump, a high-pressure water pump, an inlet ball valve, a check valve, an exhaust ball valve, an inlet air valve, a pressure sensor, a warning light, a drain ball valve, a positioning tooling, a free-body clamping device, an air delivery pipe, a water tank, an oil tank, a vane pump, a control box and an operation panel. Workbenches and a box body shell are respectively arranged on the left and right sides of the frame. An operation panel is arranged on one side of the box body shell, and a control box is arranged beside the operation panel. An exhaust ball valve and an inlet air valve are arranged beside one side of the control box, and a pressure sensor is arranged between the exhaust ball valve and the inlet air valve. An inlet ball valve and a drain ball valve are respectively arranged beside both sides of the exhaust ball valve and the inlet air valve. The operation of the present invention is convenient, suitable for mass production on a production line, with a high degree of automation, no need to detect one by one, improving work efficiency, greatly reducing the labor intensity of operators, and improving the detection quality, and having relatively high safety.

Description

Technical Field

[0001] The present invention relates to the technical field of fire extinguisher cylinder detection, and particularly to a fully automatic free-body water pressure strength detection device for fire extinguisher cylinders. Background Art

[0002] A fire extinguisher is a portable fire-fighting tool. Chemical substances are placed inside the fire extinguisher to extinguish fires. Fire extinguishers are one of the common fire prevention facilities and are stored in public places or where fires may occur. Different types of fire extinguishers are filled with different components and are designed for different fire causes. When using them, attention must be paid to avoid countereffects and dangers.

[0003] The working pressure of the dry powder bottle cylinder is 3 - 5 Mpa. Due to mass production on the production line, water pressure strength detection should be carried out for each one. The existing fully automatic free-body water pressure strength detection device for fire extinguisher cylinders is relatively simple, cannot meet mass production requirements, and has a low degree of automation. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a fully automatic free-body water pressure strength detection device for fire extinguisher cylinders, which includes a frame, a low-pressure water pump, a high-pressure water pump, an inlet ball valve, a one-way valve, an exhaust ball valve, an inlet air valve, a pressure sensor, a warning light, a drain ball valve, a positioning tooling, a free-body clamping device, an air delivery pipe, a water tank, an oil tank, a vane pump, a control box, and an operation panel. Workbenches and a box body shell are respectively arranged on the left and right sides of the frame. An operation panel is arranged on one side of the box body shell, and a control box is arranged beside the operation panel. An exhaust ball valve and an inlet air valve are arranged beside one side of the control box, and a pressure sensor is arranged between the exhaust ball valve and the inlet air valve. An inlet ball valve and a drain ball valve are respectively arranged beside both sides of the exhaust ball valve and the inlet air valve. One end of the inlet ball valve is connected to the water tank through a water delivery pipe. The water tank is arranged under the workbench. The other end of the inlet ball valve is connected to the water inlet pipe through a module. The input ends of the water inlet pipe are respectively connected to the high-pressure water pump and the low-pressure water pump. The high-pressure water pump is connected to the water inlet pipe through a one-way valve. One end of the drain ball valve is connected to the first drain pipe through a module, and the other end of the drain ball valve is connected to the water tank through a second drain pipe. An oil tank is arranged below the drain ball valve, and a vane pump is arranged above the oil tank. A warning light is arranged at the top left of the box body shell. A plurality of positioning toolings are respectively arranged on both sides of the workbench. An air delivery pipe is arranged inside the positioning tooling and is connected to the exhaust ball valve and the inlet air valve. A free-body clamping device is arranged under the positioning tooling.

[0005] Preferably, a tooling support main board is arranged at the horizontal center line inside the workbench. Positioning toolings are symmetrically arranged on both sides with the tooling support main board as the center line. The positioning toolings are arranged in sequence at equal intervals and evenly, and a total of 12 are set; the free body clamping devices and the air delivery pipes are sequentially arranged inside the positioning toolings corresponding to the positioning toolings; the free body clamping devices are respectively connected to the vane pump through an oil inlet pipe and an oil outlet pipe. A water inlet and a water outlet are respectively arranged beside the free body clamping device and are connected to a water inlet pipe and a first drain pipe respectively. A manual water supply valve and a manual high and low pressure valve are respectively arranged on the water inlet. A first control handle and a second control handle are respectively arranged on the manual water supply valve and the manual high and low pressure valve; the air delivery pipes are respectively connected to an exhaust ball valve and an intake ball valve through a main pipeline.

[0006] Preferably, a filter element is arranged inside the input end of the water delivery pipe. A pressure gauge is arranged inside the box body shell close to one side of the workbench. A pressure transmitter is arranged inside the control box.

[0007] Preferably, the exhaust ball valve and the intake ball valve are connected to an air pump through an auxiliary air delivery pipe; the workbench is a closed workbench frame.

[0008] Preferably, an operation button, a control knob, a working indicator light, and a digital display meter are respectively arranged on the operation panel. The operation buttons respectively include a locking button, a releasing button, a starting button, and an emergency stop button; the control knobs respectively include a water inlet valve knob, a drain valve knob, an air inlet valve knob, an exhaust valve knob, an oil pump knob, a water pump knob, and a manual / automatic conversion knob; the digital display meter includes a water inlet delay, a pressure holding delay, a drain delay, and a counter.

[0009] Preferably, the control box is electrically connected to a low-pressure water pump, a high-pressure water pump, a water inlet ball valve, a one-way valve, an exhaust ball valve, an intake ball valve, a pressure sensor, a warning light, a drain ball valve, a vane pump, an operation button, a control knob, a working indicator light, and a digital display meter.

[0010] The beneficial effects of the present invention are as follows: The structure is simple and the operation is convenient. By setting a water pump, an oil pump, an air pump, cooperating with ball valves, positioning toolings, and free body clamping devices, the detection effects of fixing and locking the dry powder bottle cylinder body, water inlet, water drainage, air inlet, air exhaust, etc. are achieved. It is suitable for batch production on a production line, with a high degree of automation, no need to detect one by one, improves work efficiency, greatly reduces the labor intensity of operators, improves the detection quality, has high safety, and is conducive to popularization. Description of the Drawings

[0011] The present invention will be described by way of examples with reference to the accompanying drawings, where:

[0012] Figure 1 is a top view structural schematic diagram of the present invention;

[0013] Figure 2 is a schematic side view structure of the present invention;

[0014] Figure 3 is a schematic front view structure of the present invention;

[0015] Figure 4 is a schematic rear view structure of the present invention;

[0016] Figure 5 is a schematic internal structure of the workbench in the present invention;

[0017] Figure 6 is a schematic three - dimensional structure of the present invention.

[0018] In the figure: 1, frame; 2, low - pressure water pump; 3, high - pressure water pump; 4, inlet ball valve; 5, check valve; 6, exhaust ball valve; 7, inlet air valve; 8, pressure sensor; 9, warning light; 10, drain ball valve; 11, positioning tooling; 12, free - body clamping device; 13, gas pipeline; 14, water tank; 15, fuel tank; 16, vane pump; 17, operation panel; 18, control box; 19, water pipeline; 20, filter element; 21, module; 22, inlet pipe; 23, first drain pipe; 24, second drain pipe; 25, main pipeline; 26, tooling support main board; 27, workbench; 28, manual water supply valve; 29, manual high - low pressure valve; 30, pressure gauge; 31, operation button; 32, control knob; 33, working indicator light; 34, digital display meter; 35, pressure transmitter; 36, auxiliary gas pipeline; 37, box body shell; 38, first control handle; 39, second control handle; 40, inlet oil pipe; 41, outlet oil pipe. Specific embodiments

[0019] Any feature disclosed in this specification, unless specifically described, can be replaced by other equivalent or similar - purpose alternative features. That is, unless specifically described, each feature is only an example in a series of equivalent or similar features.

[0020] Such as Figures 1-6The fully automatic free-body hydrostatic strength testing equipment for the fire extinguisher cylinder shown includes a frame 1, a low-pressure water pump 2, a high-pressure water pump 3, an inlet ball valve 4, a check valve 5, an exhaust ball valve 6, an inlet air valve 7, a pressure sensor 8, a warning light 9, a drain ball valve 10, a positioning tooling 11, a free-body clamping device 12, an air pipe 13, a water tank 14, an oil tank 15, a vane pump 16, a control box 18 and an operation panel 17. A workbench 27 and a box body shell 37 are respectively arranged on the left and right sides of the frame 1. An operation panel 17 is arranged on one side of the box body shell 37, and a control box 18 is arranged beside the operation panel 17. An exhaust ball valve 6 and an inlet air valve 7 are arranged beside one side of the control box 18. A pressure sensor 8 is arranged between the exhaust ball valve 6 and the inlet air valve 7. An inlet ball valve 4 and a drain ball valve 6 are respectively arranged beside both sides of the exhaust ball valve 6 and the inlet air valve 7. One end of the inlet ball valve 4 is connected to the water tank 14 through a water pipe 19. The water tank 14 is arranged below the workbench 27. The other end of the inlet ball valve 4 is connected to an inlet pipe 22 through a module 21. The input ends of the inlet pipe 22 are respectively connected to the high-pressure water pump 3 and the low-pressure water pump 2. The high-pressure water pump 3 is connected to the inlet pipe 22 through a check valve 5. One end of the drain ball valve 10 is connected to a first drain pipe 23 through a module 21. The other end of the drain ball valve 10 is connected to the water tank 14 through a second drain pipe 24. An oil tank 15 is arranged below the drain ball valve 10. A vane pump 16 is arranged above the oil tank 15. A warning light 9 is arranged at the top left of the box body shell 37. A plurality of positioning toolings 11 are respectively arranged on both sides of the workbench 27. An air pipe 13 is arranged in the positioning tooling 11 and is connected to the exhaust ball valve 6 and the inlet air valve 7. A free-body clamping device 12 is arranged below the positioning tooling 11. A tooling support main board 26 is arranged at the horizontal center line inside the workbench 27. The positioning toolings 11 are symmetrically arranged on both sides with the tooling support main board 26 as the center line. The positioning toolings 11 are arranged in sequence at equal intervals and are set to 12 in total. The free-body clamping devices 12 corresponding to the air pipes 13 are sequentially arranged inside the positioning toolings 11. The free-body clamping devices 12 are respectively connected to the vane pump 16 through an oil inlet pipe 40 and an oil outlet pipe 41. An inlet and an outlet are respectively arranged beside the free-body clamping device 12 and are connected to the inlet pipe 22 and the first drain pipe 23. A manual water supply valve 28 and a manual high-low pressure valve 29 are respectively arranged on the inlet. A first control handle 38 and a second control handle 39 are respectively arranged on the manual water supply valve 28 and the manual high-low pressure valve 29. The air pipes 13 are respectively connected to the exhaust ball valve 6 and the inlet air valve 7 through a main pipe 25. A filter element 20 is arranged inside the input end of the water pipe 19. A pressure gauge 30 is arranged inside the box body shell 37 close to one side of the workbench 27. A pressure transmitter 35 is arranged inside the control box 18. The exhaust ball valve 6 and the inlet air valve 7 are connected to an air pump through an auxiliary air pipe 36. The workbench 27 is a closed workbench frame.The operation panel 17 is respectively provided with operation buttons 31, control knobs 32, working indicator lights 33, and digital display meters 34. The operation buttons 31 respectively include a locking button, a releasing button, a start button, and an emergency stop button; the control knobs 32 respectively include a water inlet valve knob, a drain valve knob, an air inlet valve knob, an exhaust valve knob, an oil pump knob, a water pump knob, and a manual / automatic conversion knob; the digital display meters 34 include water inlet delay, pressure holding delay, and drain delay, all of which cooperate with a time delay device and a counter. The control box 18 is electrically connected to a low-pressure water pump 2, a high-pressure water pump 3, a water inlet ball valve 4, a one-way valve 5, an exhaust ball valve 6, an air inlet ball valve 7, a pressure sensor 8, a warning light 9, a drain ball valve 10, a vane pump 16, the operation buttons 31, the control knobs 32, the working indicator lights 33, and the digital display meters 34. The free body clamping device 12 is a dry powder bottle cylinder free body hydrostatic test chuck disclosed in Chinese authorized patent number ZL201220218135.1, which has a fixture, a water discharge square, and an oil cylinder, and its working principle is an existing mature technology. The pressure transmitter 35 cooperates with the pressure sensor 8 to convert the gas pressure into an electrical signal. The water tank 14 is provided with a water inlet and a water outlet. The main pipeline 25 is connected to the gas transmission pipeline 13 through a plurality of branch pipes for air intake. The output end of the air inlet ball valve 7 is connected to the main pipeline 25 through an air inlet pipe, and the output end of the exhaust ball valve 6 is connected to the water tank 14 through an exhaust pipe.

[0021] The working principle of this specific embodiment is as follows: First, the operator successively places 12 fire extinguisher cylinders with their mouths facing down on 12 positioning jigs 11. Start the vane pump 16, and press the clamp locking button inside the operation button 31 to clamp all the bottles simultaneously. Press the green start button, and the water inlet ball valve 4 and the exhaust ball valve 6 will automatically open, and the low-pressure water pump 2 will automatically start to supply water into the bottles. According to the different sizes of the cylinders, it is controlled and adjusted by the time delay device. The water comes out of the bottle mouth, and the air in the cylinder is exhausted through the air pipe 13 to the water tank 14, and then the water can completely enter. After the water supply time is up, the water inlet ball valve 4 remains open, the low-pressure water pump 2 is closed, and at the same time, the high-pressure water pump 3 is opened to start supplying water and boosting the pressure. At this time, the high-pressure water pump 3 is connected to the check valve 5 to supply water through the water inlet pipe 22, and the water inlet ball valve 4 is closed. After the pressure rises to the pressure set by the pressure sensor 8, the high-pressure water pump 3 is closed, and the cylinder is kept under pressure. The pressure holding time is controlled and set by the time delay device. When the pressure exceeds the set value, the safety valve opens, and at this time, a hydrostatic strength expansion test is carried out on the fire extinguisher cylinder, and the alarm lamp 9 flashes to indicate that there is pressure in the bottle. After the pressure holding ends, the drain ball valve 10 is opened, the pressure is released, and the drainage starts with a time delay. Then the inlet ball valve 7 is opened, and the air compresses the water in the bottle and discharges it to the water tank 14. It automatically closes after the drainage time delay ends. Finally, all operations stop. If the pressure sensor 8 in the bottle senses that there is still pressure at this time, the signal is fed back to the control box 18, and the control box 18 controls the vane pump 16 again, so that the free body clamping device 12 cannot be released. If it is normal, the free body clamping device 12 is released, and the operator takes the products off successively. And during the pressure holding process of the cylinder, when one or more cylinders leak, the low-pressure and high-pressure water inlet ball valves 4 can be manually closed separately without affecting the production of other cylinders. Each station has an independent manual valve first control handle 38 and second control handle 39.

[0022] The present invention is not limited to the foregoing specific embodiments. The present invention extends to any new feature or any new combination disclosed in this specification, as well as any new method or process step or any new combination disclosed.

Claims

1. Fully automatic free-body hydrostatic strength testing equipment for fire extinguisher cylinders, comprising a frame (1), a low-pressure water pump (2), a high-pressure water pump (3), an inlet ball valve (4), a check valve (5), an exhaust ball valve (6), an inlet air valve (7), a pressure sensor (8), a warning light (9), a drain ball valve (10), a positioning tooling (11), a free-body clamping device (12), an air delivery pipe (13), a water tank (14), an oil tank (15), a vane pump (16), a control box (18) and an operation panel (17), characterized in that: On the left and right sides of the frame (1), a workbench (27) and a box housing (37) are respectively arranged. An operation panel (17) is arranged on one side of the box housing (37), and a control box (18) is arranged beside the operation panel (17). An exhaust ball valve (6) and an inlet ball valve (7) are arranged beside one side of the control box (18). A pressure sensor (8) is arranged between the exhaust ball valve (6) and the inlet ball valve (7). An inlet water ball valve (4) and a drain ball valve (10) are respectively arranged beside both sides of the exhaust ball valve (6) and the inlet ball valve (7). One end of the inlet water ball valve (4) is connected to a water tank (14) through a water delivery pipe (19). The water tank (14) is arranged below the workbench (27). The other end of the inlet water ball valve (4) is connected to a water inlet pipe (22) through a module (21). The input ends of the water inlet pipe (22) are respectively connected to a high-pressure water pump (3) and a low-pressure water pump (2). The high-pressure water pump (3) is connected to the water inlet pipe (22) through a check valve (5). One end of the drain ball valve (10) is connected to a first drain pipe (23) through a module (21). The other end of the drain ball valve (10) is connected to the water tank (14) through a second drain pipe (24). A fuel tank (15) is arranged below the drain ball valve (10). A vane pump (16) is arranged above the fuel tank (15). A warning lamp (9) is arranged at the top left of the box housing (37). A plurality of positioning jigs (11) are respectively arranged on both sides of the workbench (27). An air delivery pipe (13) is arranged in the positioning jig (11) and is connected to the exhaust ball valve (6) and the inlet ball valve (7). A free body clamping device (12) is arranged below the positioning jig (11); A tooling support main board (26) is arranged at the horizontal center line inside the workbench (27). The positioning jigs (11) are symmetrically arranged on both sides with the tooling support main board (26) as the center line. The positioning jigs (11) are arranged in a uniformly equidistant and sequential manner, and a total of 12 are arranged. The free body clamping devices (12) corresponding to the air delivery pipes (13) are sequentially arranged inside the positioning jigs (11). The free body clamping devices (12) are respectively connected to the vane pump (16) through an oil inlet pipe (40) and an oil outlet pipe (41). An inlet and an outlet are respectively arranged beside the free body clamping device (12) and are connected to the water inlet pipe (22) and the first drain pipe (23). A manual water supply valve (28) and a manual high and low pressure valve (29) are respectively arranged at the water inlet. A first control handle (38) and a second control handle (39) are respectively arranged on the manual water supply valve (28) and the manual high and low pressure valve (29). The air delivery pipe (13) is respectively connected to the exhaust ball valve (6) and the inlet ball valve (7) through a main pipe (25).

2. The fully automatic free-body hydrostatic strength testing equipment for fire extinguisher cylinders according to claim 1, characterized in that: A filter element (20) is arranged inside the input end of the water delivery pipe (19). A pressure gauge (30) is arranged inside the box housing (37) close to the workbench (27). A pressure transmitter (35) is arranged inside the control box (18).

3. The fully automatic free-body hydrostatic strength testing equipment for fire extinguisher cylinders according to claim 1, wherein: The exhaust ball valve (6) and the inlet ball valve (7) are connected to an air pump through an auxiliary air delivery pipe (36). The workbench (27) is a closed workbench frame.

4. The fully automatic free-body hydrostatic strength testing equipment for fire extinguisher cylinders according to claim 1, characterized in that: An operation button (31), a control knob (32), a working indicator light (33), and a digital display (34) are respectively arranged on the operation panel (17). The operation button (31) respectively includes a locking button, a release button, a start button, and an emergency stop button; the control knob (32) respectively includes a water inlet valve knob, a drain valve knob, an air inlet valve knob, an exhaust valve knob, an oil pump knob, a water pump knob, and a manual / automatic conversion knob; the digital display (34) includes a water inlet delay, a pressure holding delay, a drain delay, and a counter.

5. The fully automatic free-body hydrostatic strength testing equipment for fire extinguisher cylinders according to claim 4, characterized in that: The control box (18) is electrically connected to a low-pressure water pump (2), a high-pressure water pump (3), a water inlet ball valve (4), a check valve (5), an exhaust ball valve (6), an air inlet ball valve (7), a pressure sensor (8), a warning light (9), a drain ball valve (10), a vane pump (16), an operation button (31), a control knob (32), a working indicator light (33), and a digital display (34).

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