Aviation pressure rubber pipe testing device

Abstract

The utility model relates to the technical field of rubber hose pressing, in particular to an aviation pressure rubber hose testing device. Comprising a movable chassis, an oil box installed on the movable chassis, a battery and a PLC. The oil box is provided with an oil outlet, an oil drainage port and an oil return port, the oil outlet is communicated with the oil return port through an external pipeline, and the oil drainage port is provided with an oil drainage valve; an oil return filter, an oil pump, a one-way valve, a pressure sensor, a pressure gauge, a pressurizing interface and a pressure release valve are sequentially arranged on the external pipeline at intervals from one end of the oil outlet to the oil return port; the pressing interface is provided with a first valve; the PLC is in communication connection with the pressure sensor, the oil pump and the battery. The device is simple in structure and easy to operate, oil products are convenient to recover, the testing efficiency is improved, and the testing cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of rubber pipe pressure test, more particularly to an aviation pressure rubber pipe testing device. BACKGROUND

[0002] The rubber pipe pressure device used in the supply station is manually operated, and the pressure efficiency is low. The device has a small contact area with the ground and is unstable. The staff squats on the ground and manually operates while observing the pressure value, which is easy to overturn the device and difficult to operate. The oil tank of the manual device is semi-closed, lacks an upper sealing cover plate and a residual oil discharge process, and the oil is easy to spill and the residual oil is difficult to recover, which affects the overall work efficiency of the periodic test of the rubber pipe. The staff manually operates in an unhealthy position (squatting), which has a high risk of mechanical injury. SUMMARY

[0003] The utility model aims at overcoming the inconvenience of operation and the difficulty of oil recovery in the prior art pressure rubber pipe test, and provides an aviation pressure rubber pipe testing device, which is simple and convenient to operate and can quickly recover oil.

[0004] To solve the above technical problems, the utility model adopts the technical scheme of:

[0005] An aviation pressure rubber pipe testing device is provided, which comprises a mobile chassis, an oil tank, a battery and a PLC controller mounted on the mobile chassis. The oil tank is provided with an oil outlet, a drain port and an oil return port. The oil outlet and the oil return port are connected by an external pipeline. The drain port is provided with a drain valve. An oil return filter, an oil pump, a one-way valve, a pressure sensor, a pressure gauge, a pressure interface and a pressure relief valve are sequentially and intermittently arranged on the external pipeline from the oil outlet end to the oil return port. A first valve is arranged at the pressure interface. The PLC controller is communicatively connected with the pressure sensor, the oil pump and the battery.

[0006] The utility model provides a kind of aviation pressure rubber tube testing device, whole device is set on mobile chassis, it is convenient to use, with battery, without additional power supply, it is convenient for outdoor test;When using, first all valve is closed, test oil is injected into oil box, after being connected with the press interface of the aviation pressure pipe to be tested, open first valve, start oil pump, oil product flows out from oil box, and impurities are filtered out by oil return filter, and it flows out to the aviation pressure rubber tube to be tested from the press interface by one-way valve, and oil pump continues to provide pressure, and pressure sensor feeds back outlet pressure to PLC controller, and when reaching set pressure, oil pump stops working, and one-way valve prevents oil product from flowing back;When testing is completed, close first valve, open pressure relief valve, and oil product is returned to oil box from oil return port, and oil product can be recycled.If pressure can reach set pressure value during testing, it indicates that the aviation pressure rubber tube is intact, and if continuous pressing cannot reach set pressure value, it indicates that the aviation pressure rubber tube is damaged.The aviation pressure rubber tube testing device provided by the utility model has simple structure, easy operation, facilitates oil recovery, improves testing efficiency and reduces testing cost.

[0007] Further, the press interface is provided with a plurality of press interfaces, and the plurality of press interfaces are different in model. By providing a plurality of press interfaces of different models, different models of the aviation pressure rubber tube to be tested can be matched. In the utility model, the aviation pressure rubber tube includes a refueling rubber tube directly connected with an aircraft, a 4-inch well connector connected with a well plug, a negative pressure rubber tube and the like.

[0008] Further, the press interface is provided with a dust cover. The dust cover is installed at the press interface, and the dust cover is covered when not in use, so as to prevent impurities from falling into the interface and polluting the oil product.

[0009] Further, a safety valve is further provided on the external pipeline, and the safety valve is connected in parallel with the pressure relief valve. When the pressure exceeds the preset safety value, the safety valve is automatically opened to release pressure. The pressure relief valve is used for manual pressure relief and oil recovery during testing. Under normal circumstances, the pressure relief valve is used. When the pressure exceeds the predetermined range, the safety valve is automatically opened, and the two cooperate with each other to improve the safety performance of the device.

[0010] Further, an electrostatic lead is further provided on the mobile chassis. The electrostatic lead can eliminate static electricity and prevent static electricity accumulation, and further improve the safety performance of the device.

[0011] Further, an explosion-proof battery box is further provided on the mobile chassis, and the battery is installed in the explosion-proof battery box. Since the use scene of the utility model involves aviation oil, oil tank and other special scenes, the explosion-proof battery box can effectively avoid safety accidents.

[0012] Further, the oil box, the explosion-proof battery box, the battery, the external pipeline and the PLC controller are installed in the box body; the first window and the second window are formed on the box body, the first window is located at the oil box, and the second window is located at the pressure interface; the door body is installed on the first window and the second window. All components are arranged in the box body, which is beautiful, dustproof, safe and reliable; since there are batteries and oil pumps, the device is used in special places such as oil tanks and wells, and all components are covered by the box body, which can improve the safety performance to a certain extent; when testing is needed, the door body of the second window is opened, the pressure interface is exposed, the operator can connect the pressure interface, and after testing is completed, the door body of the second window is closed; when the oil product needs to be recovered or new oil product needs to be injected, the door body of the first window is opened, and the door body is closed after operation, which is beautiful, dustproof and safe.

[0013] Further, the oil box is a closed oil box, the oil box is provided with a refueling port, and a second valve is arranged on the refueling port; the refueling port is located at the position of the first window. A breather valve or other components that can balance the pressure inside and outside the oil box is installed on the oil box; the oil box is a closed oil box, which can effectively prevent oil from spilling and leaking, and can also prevent impurities from falling in; when the oil product needs to be injected, the oil product is added to the oil box through the refueling port, and when the oil product needs to be recovered, the oil product is discharged through the oil outlet; the operation is simple.

[0014] Further, the battery is a storage battery, and a charging port in communication with the battery is further arranged on the box body. The storage battery can be a lead-acid storage battery, the storage battery is charged through the charging port, and an indicator light and an electric quantity display screen can also be installed on the box body; the indicator light and the electric quantity display screen are connected with the PLC controller, and the electric quantity display is realized by connecting the control circuit in the PLC controller with the battery.

[0015] Further, the control panel and the display are further included; the control panel and the display are installed on the box body and are in communication connection with the PLC controller. The operation buttons such as start, pause and close are arranged on the control panel, the oil pump is started or closed through the control panel, and the operation is simple; the display can display the value transmitted by the pressure sensor, and the operator can directly see the pressure value; the display displays the pressure value transmitted by the pressure sensor, and on the other hand, the operator can also observe the pressure through the pressure gauge; the pressure gauge and the pressure sensor detect the pressure at the same time, which can improve the detection accuracy.

[0016] Further, the box is provided with a hook for hanging the oil pipe. When connecting the to-be-tested aviation pressure hose, sometimes the oil pipe needs to be used as a connecting component to realize the connection of the pressurizing interface and the to-be-tested aviation pressure hose; the hook is arranged, so that the oil pipe can be hung on the hook, and when needed, the oil pipe can be directly used, and when not needed, the oil pipe is convenient to store.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] 1. The aviation pressure hose testing device has simple structure and simple operation, and can recycle oil products, improve testing efficiency and reduce testing cost.

[0019] 2. The aviation pressure hose testing device can recycle oil products quickly, and various types of hoses can be directly connected without the need of a conversion joint, the device has explosion-proof property, meets the fire and explosion-proof requirements, has a self-contained power supply, and breaks the site power supply limitation requirement. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic view of the utility model;

[0021] Figure 2 is a whole structural schematic view of the utility model;

[0022] Figure 3 is an internal structural schematic view of the utility model.

[0023] In the drawings: 1, mobile chassis; 2, oil box; 3, battery; 4, PLC controller; 5, external pipeline; 6, oil drain valve; 7, oil return filter; 8, oil pump; 9, check valve; 10, pressure sensor; 11, pressure gauge; 12, pressurizing interface; 13, pressure relief valve; 14, first valve; 15, safety valve; 16, explosion-proof battery box; 17, charging port; 18, display; 19, control panel; 20, electrostatic lead; 21, box; 22, hook; 23, first window; 24, second window; 25, door body. DETAILED DESCRIPTION

[0024] The utility model will be further described below in combination with specific implementation manners. Among them, the drawings are only used for example description, and the representation is only a schematic view, not a real object drawing, and cannot be understood as the limitation of the patent; in order to better illustrate the embodiment of the utility model, some components of the drawings will be omitted, enlarged or reduced, and the size of the actual product is not represented; for those skilled in the art, it is understandable that some known structures and their descriptions in the drawings can be omitted.

[0025] The same or similar reference signs in the drawings of the embodiments of the present application correspond to the same or similar components; in the description of the present application, it is understood that if the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right" and the like are based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationships in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present patent, for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0026] Embodiment one

[0027] The present embodiment is a first embodiment of an aviation pressure rubber hose testing device, comprising a mobile chassis 1, an oil box 2, a battery 3 and a PLC controller 4 mounted on the mobile chassis 1; the oil box 2 is provided with an oil outlet, an oil drain and an oil return, the oil outlet and the oil return are communicated through an external pipeline 5, the oil drain is provided with an oil drain valve 6; an oil return filter 7, an oil pump 8, a one-way valve 9, a pressure sensor 10, a pressure gauge 11, a pressure interface 12 and a pressure relief valve 13 are sequentially and spaced apart on the external pipeline 5 from the oil outlet end to the oil return; the pressure interface 12 is provided with a first valve 14; the PLC controller 4 is respectively in communication connection with the pressure sensor 10, the oil pump 8 and the battery 3. In the present embodiment, the pressure gauge 11 is a mechanical pressure gauge 11.

[0028] In the present embodiment, a control panel 19 and a display 18 are further included; the control panel 19 and the display 18 are mounted on a box body 21 and are respectively in communication connection with the PLC controller 4. The control panel 19 is provided with operation buttons such as start, pause and close, the oil pump 8 is started or closed through the control panel 19, and the operation is simple; the display 18 can display the values transmitted by the pressure sensor 10, and the operator can intuitively see the pressure values; the display 18 displays the pressure values transmitted by the pressure sensor 10, on the other hand, the operator can also observe the pressure through the pressure gauge 11, the pressure gauge 11 and the pressure sensor 10 detect the pressure at the same time, which can improve the detection accuracy.

[0029] The utility model provides a kind of aviation pressure rubber tube testing device, whole device is set on mobile chassis 1, it is convenient to use, with battery 3, without extra power supply again, it is convenient to outdoor test;When using, first all valve is closed, test oil is injected into oil box 2, after test aviation pressure pipe and press interface 12 are connected, open first valve 14, start oil pump 8, oil product flows out from oil box 2, and the impurity is filtered by oil return filter 7, and it flows out to the aviation pressure rubber tube to be tested from press interface 12 by one-way valve 9, and oil pump 8 continues to provide pressure, and pressure sensor 10 exports pressure to PLC controller 4, when reaching set pressure, oil pump 8 stops working, and one-way valve 9 prevents oil product reverse flow and keeps pressure;When testing is finished, close first valve 14, open pressure relief valve 13, and oil product is returned to oil box 2 from oil return port, and oil drain valve 6 can be opened, and oil product can be recycled.If pressure can reach set pressure value during testing, then it indicates that aviation pressure rubber tube is intact, and if continued press cannot reach set pressure value, then it indicates that aviation pressure rubber tube is damaged.The aviation pressure rubber tube testing device provided by the utility model has simple structure, easy operation, is convenient for recycling oil product, improves testing efficiency, and reduces testing cost.

[0030] Embodiment two

[0031] The second embodiment of the aviation pressure rubber tube testing device, similar to embodiment one, the difference is that, press interface 12 is provided with multiple, multiple press interface 12 model is different.Set multiple press interface 12 of different models can be adapted to different models of aviation pressure rubber tube to be tested, in the utility model, aviation pressure rubber tube includes fueling rubber tube directly connected with aircraft, 4-inch well connector connected with ground well plug, negative pressure rubber tube and the like.

[0032] In the embodiment, dust cover is provided at press interface 12.In use, dust cover is covered, to avoid impurities falling in interface, polluting oil product.

[0033] Embodiment three

[0034] The third embodiment of the aviation pressure rubber tube testing device, similar to embodiment one, the difference is that, it further includes safety valve 15, and safety valve 15 is connected with pressure relief valve 13 in parallel.Set safety valve 15, when exceeding preset pressure safety value, safety valve 15 is automatically opened to release pressure.Pressure relief valve 13 is used for manual pressure relief to recycle oil product during testing.In normal circumstances, pressure relief valve 13 is used;When pressure exceeds predetermined range, safety valve 15 is automatically opened, and the both cooperate with each other, to improve the safety performance of device.

[0035] In the embodiment, the mobile chassis 1 is further provided with an electrostatic wire 20. The electrostatic wire 20 can eliminate static electricity and prevent static electricity accumulation, and further improve the safety performance of the device.

[0036] In the embodiment, the mobile chassis 1 is further provided with an explosion-proof battery box 16, and the battery 3 is installed in the explosion-proof battery box 16. Since the use scene of the device relates to aviation oil and oil tanks, the explosion-proof battery box 16 can effectively avoid safety accidents.

[0037] Embodiment Four

[0038] The fourth embodiment of the aviation pressure rubber pipe testing device is similar to the first embodiment, and the difference is that the mobile chassis 1 is further provided with a box body 21, the oil box 2, the explosion-proof battery box 16, the battery 3, the external pipeline 5, and the PLC controller 4 are all installed in the box body 21; the first window 23 and the second window 24 are arranged on the box body 21, the first window 23 is located at the oil box 2, and the second window 24 is located at the pressure interface 12; the door body 25 is installed on the first window 23 and the second window 24. All components are arranged in the box body 21, which is beautiful, dustproof, and safe; since there are the battery 3 and the oil pump 8, and the use scene of the device is in special places such as oil tanks and ground wells, all components are covered by the box body 21, which can improve the safety performance to a certain extent; when testing is needed, the door body 25 of the second window 24 is opened, the pressure interface 12 is exposed, the operator can connect the pressure interface 12, and after testing is completed, the door body 25 of the second window 24 is closed; when it is needed to recover oil products or inject new oil products, the door body 25 of the first window 23 is opened, and the door body 25 is closed after operation, which is beautiful, dustproof, and safe.

[0039] In the embodiment, the oil box 2 is further provided with a filling port, and a second valve is arranged at the filling port; the filling port is located at the position of the first window 23. The oil box 2 can be a closed oil box 2, and a breather valve or other components that can balance the pressure inside and outside the oil box 2 are installed on the oil box 2; the oil box 2 is closed, which can avoid waste of oil products and prevent impurities from falling in; when it is needed to inject oil products, oil is added to the oil box 2 through the filling port, and when it is needed to recover oil products, the oil products are discharged through the oil discharge port; the operation is simple.

[0040] In the embodiment, in order to facilitate operation, the oil discharge port extends outside the box body 21 through a connecting oil pipe, the oil discharge valve 6 is also installed outside the box body 21, the filling port extends outside the box body 21 through a connecting pipeline, and the second valve is also arranged outside the box body 21.

[0041] In the embodiment, the battery 3 is a storage battery, and a charging port 17 in communication with the battery 3 is further arranged on the box body 21. The storage battery can be a lead-acid storage battery. The storage battery is charged through the charging port 17. An indicating lamp and an electric quantity display screen can be installed on the box body 21. The indicating lamp and the electric quantity display screen are connected with the PLC controller 4 and are connected with the battery 3 through a control circuit built in the PLC controller 4, so as to realize electric quantity display.

[0042] In the embodiment, a hook 22 for hanging an oil pipe is arranged on the box body 21. When the to-be-tested aviation pressure hose is connected, the oil pipe is sometimes needed as a connecting component to realize the connection between the pressing interface 12 and the to-be-tested aviation pressure hose. The hook 22 is arranged, so that the oil pipe can be hung on the hook 22 and directly used when needed and conveniently stored when not needed.

[0043] In the embodiment, the mobile chassis 1 comprises a chassis, wheels arranged at the bottom of the chassis, and a push handle arranged on the chassis. The box body 21, the oil box 2, the oil pump 8, the battery 3, the explosion-proof battery box 16 and the like are all fixedly arranged on the chassis. The wheels are selected as universal wheels with brakes.

[0044] In the specific contents of the above specific embodiments, any non-contradictory combination of technical features can be made. In order to make the description simple, all possible combinations of the above technical features are not described, however, as long as the combination of the technical features does not exist, it should be considered that it is within the scope of the present application.

[0045] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, other different forms of changes or modifications can be made on the basis of the above description. Here, all the implementation modes are not required or can not be exhausted. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An aviation pressure hose testing device, characterized in that, The system includes a mobile chassis (1), an oil box (2) mounted on the mobile chassis (1), a battery (3), and a PLC controller (4). The oil box (2) has an oil outlet, an oil drain port, and an oil return port. The oil outlet and the oil return port are connected by an external pipe (5). The oil drain port is equipped with an oil drain valve (6). From the oil outlet to the oil return port, the external pipe (5) is provided with an oil return filter (7), an oil pump (8), a one-way valve (9), a pressure sensor (10), a pressure gauge (11), a pressure testing interface (12), and a pressure relief valve (13). The pressure testing interface (12) is equipped with a first valve (14). The PLC controller (4) is communicatively connected to the pressure sensor (10), the oil pump (8), and the battery (3).

2. The aviation pressure hose testing device according to claim 1, characterized in that, The pressure testing interface (12) is provided in multiple ways, and the multiple pressure testing interfaces (12) are of different models.

3. The aviation pressure hose testing device according to claim 1, characterized in that, A dust cover is provided on the pressure testing interface (12).

4. The aviation pressure hose testing device according to claim 1, characterized in that, A safety valve (15) is also provided on the external pipe (5), and the safety valve (15) is connected in parallel with the pressure relief valve (13).

5. The aviation pressure hose testing device according to claim 4, characterized in that, The mobile chassis (1) is equipped with an electrostatic conductor (20).

6. The aviation pressure hose testing device according to any one of claims 1 to 5, characterized in that, A housing (21) is provided on the mobile chassis (1), and the oil box (2), explosion-proof battery box (16), battery (3), external pipe (5) and PLC controller (4) are all installed in the housing (21); a first window (23) and a second window (24) are provided on the housing (21), the first window (23) is located at the location of the oil box (2), and the second window (24) is located at the location of the pressure interface (12); a door (25) is installed in both the first window (23) and the second window (24).

7. The aviation pressure hose testing device according to claim 6, characterized in that, The oil box (2) is provided with an oil filling port, and a second valve is provided at the oil filling port; the oil filling port is located at the position of the first window (23).

8. The aviation pressure hose testing device according to claim 6, characterized in that, An explosion-proof battery box (16) is provided on the mobile chassis (1), and the battery (3) is installed in the explosion-proof battery box (16); the battery (3) is a storage battery (3), and a charging port (17) communicating with the battery (3) is provided on the box body (21).

9. The aviation pressure hose testing device according to claim 6, characterized in that, It also includes a control panel (19) and a display (18); the control panel (19) and the display (18) are mounted on the housing (21) and are respectively connected to the PLC controller (4) for communication.

10. The aviation pressure hose testing device according to claim 6, characterized in that, The box (21) is equipped with hooks (22) for hanging oil pipes.

Images