Air valve test board

Abstract

The utility model provides an air valve test board, and belongs to the technical field of test equipment. The problem that an existing test board is not high in test efficiency is solved. The air valve test board comprises a test main body, the test main body is provided with an installation unit which is connected with the test main body and is used for installing a plurality of air valves, the test main body is provided with a detection unit which is connected with the test main body and is used for detecting the air valves, and the test main body is provided with a control unit which is connected with the test main body and is used for controlling the whole operation of the test main body. The mounting unit comprises a bottom plate and a plurality of mounting racks for placing and mounting air valves, the bottom plate is arranged on the test main body and is connected with the test main body, and the plurality of mounting racks are arranged on the bottom plate and are connected with the bottom plate. The utility model has the advantage of high test efficiency.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of test equipment relates to an air valve test board. BACKGROUND

[0002] Air valve is the breather of pipeline, is the guarantee of pipeline safety device, also called air valve, exhaust valve, but it has the function of inhaling, so called air valve is more correct. At present, the good and bad of air valve intake performance is mainly measured by test device, but the performance test of air valve in the prior art generally uses two sets of equipment, needs to detect the valve body many times, therefore, the test is relatively complicated, the test efficiency is low, and error is prone to exist in the detection process, thereby not meeting the test demand. SUMMARY

[0003] The utility model discloses a kind of test efficiency high test board to the above problems existing in prior art.

[0004] The utility model discloses a kind of air valve test board, including test main body, its characterized in that, the test main body is connected and is equipped with the installation unit for multiple air valve installation on it, the test main body is connected and is equipped with the detection unit for detecting air valve on it, the test main body is connected and is equipped with the control unit for controlling its overall operation on it, the installation unit includes bottom plate and several installation racks for air valve placement installation, the bottom plate is set on test main body and is connected with it, several installation racks are set on bottom plate and are connected with it.

[0005] In the above-mentioned air valve test board, the control unit includes control box with PLC program connected with test main body and control switch for starting and stopping.

[0006] In the above-mentioned air valve test board, the detection unit includes several flowmeters, several stepper motors, proportional valve and display instrument, the number of flowmeters is same as the number of stepper motors, the test main body is connected and is equipped with the fixing plate for fixing flowmeter on it, the proportional valve is set on test main body and is connected with it, the display instrument is set on test main body and is connected with it, the flowmeter is connected with air valve through tee pipe.

[0007] In the above-mentioned air valve test board, the test main body is connected and is equipped with assembly unit matched with tee pipe on it, the assembly unit includes air inlet pipe plate and push air cylinder with telescopic rod, the push air cylinder is set on bottom plate and is connected with it, the air inlet pipe plate is set on telescopic rod and is connected with it, and assembly hole for tee pipe extension installation is formed in air inlet pipe plate.

[0008] In the air valve test bench, the bottom plate is provided with a plurality of dotting needle type cylinders which are the same as the number of mounting racks and connected with the mounting racks.

[0009] The operation process of the air valve test bench is as follows:

[0010] 1. Put in the air valve, start the PLC program, and delay x seconds to issue instructions, the mounting rack is closed, the proportional valve in the output module outputs Q3 negative pressure (which can be delayed for 2 to 6 seconds, the time is set according to the actual situation), the flowmeter in the comparison module is read, whether it is less than 1, less than 2, less than 3, less than 4, and 1 is determined;

[0011] 2. Determination 1: qualified, the proportional valve outputs Q2 negative pressure, the flowmeter reads and determines 2, if the negative pressure measurement value-Q2 negative pressure output value is less than 2, an alarm is given that the negative pressure is not accurate, unqualified, the dotting needle type cylinder in the dotting module is started to open the assembly tooling, and the PLC program is ended;

[0012] 3. Determination 2: qualified, the proportional valve outputs Q4 negative pressure, the flowmeter reads and determines 3, if the negative pressure measurement value-Q4 negative pressure output value is less than 2, an alarm is given that the negative pressure is not accurate, unqualified, the dotting needle type cylinder in the dotting module is started to open the assembly tooling, and the PLC program is ended;

[0013] 4. Determination 3: qualified, the proportional valve outputs Q5 negative pressure, the flowmeter reads and determines 4, if the negative pressure measurement value-Q5 negative pressure output value is less than 2, an alarm is given that the negative pressure is not accurate, unqualified, the dotting needle type cylinder in the dotting module is started to open the assembly tooling, and the PLC program is ended;

[0014] 5. Determination 4: qualified, the PLC program is ended, unqualified, the dotting needle type cylinder in the dotting module is started to open the assembly tooling, and the PLC program is ended.

[0015] Compared with the prior art, the air valve test bench is integrated, and the detection efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic view of the three-dimensional structure in the air valve test bench.

[0017] In the figure, 1 is a test main body; 2 is a bottom plate; 3 is a mounting rack; 4 is a flowmeter; 5 is a stepping motor; 6 is a proportional valve; 7 is a push cylinder; 8 is an air inlet pipe plate; and 9 is a dotting needle type cylinder. DETAILED DESCRIPTION

[0018] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.

[0019] As Figure 1 The air valve test bench, including a test body, characterized in that the test body is provided with an installation unit connected thereto and used for installing a plurality of air valves, the test body is provided with a detection unit connected thereto and used for detecting the air valve, the test body is provided with a control unit connected thereto and used for controlling the overall operation thereof, the installation unit includes a bottom plate and a plurality of mounting racks for placing and installing the air valves, the mounting rack is provided with a assembly tool connected thereto and used for limiting the air valve, the bottom plate is arranged on the test body and connected thereto, and the plurality of mounting racks are arranged on the bottom plate and connected thereto, the test body is provided with a protective cover wrapped in the detection unit and having a protective effect, the control unit includes a control box connected to the test body and having a PLC program, and a control switch used for opening and closing, the PLC program includes an opening and closing module, a comparison module (comparison of flow meters, such as flow meter less than 1, flow meter less than 2, flow meter less than 3, flow meter less than 4, etc.), a measurement module (negative pressure measuring table), an output module (proportional valve), and a dotting module (dotting needle type cylinder corresponding to the determination of the corresponding flow meter and working), the detection unit includes a plurality of flow meters, a plurality of stepping motors, a proportional valve, and a display instrument, the number of flow meters is the same as the number of stepping motors, and the flow meter is connected to the stepping motor through a connector, the test body is provided with a fixing plate connected thereto and used for fixing the flow meter, the proportional valve is arranged on the test body and connected thereto, and located on one side of the corresponding flow meter, the negative pressure Q2, Q3, Q4, Q5 output test can be realized through the proportional valve, the display instrument is arranged on the test body and connected thereto, the flow meter is connected to the air valve through a three-way pipe, the test body is provided with a negative pressure pipe plate connected thereto and matched with the proportional valve, the setting of the negative pressure pipe plate facilitates the connection of the pipeline in the proportional valve with the air valve, the test body is provided with an assembly unit connected thereto and matched with the three-way pipe, the assembly unit includes an air inlet pipe plate and a push cylinder with an extension rod, the push cylinder is arranged on the bottom plate and connected thereto, the air inlet pipe plate is arranged on the extension rod and connected thereto, and the air inlet pipe plate is provided with an assembly hole for the three-way pipe to extend into and install, the bottom plate is provided with a plurality of dotting needle type cylinders which are the same in number as the mounting racks, connected thereto, and matched with the assembly tool, and the dotting needle type cylinder is connected to the bottom plate through a support.

[0020] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.

[0021] Although the same terms are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is only for the convenience of describing and explaining the essence of the present application; it is contrary to the spirit of the present application to interpret them as any kind of additional limitation.

Claims

1. An air valve test bench, comprising a test body (1), characterized in that, The test body (1) is provided with an installation unit connected thereto for installing multiple air valves. The test body (1) is provided with a detection unit connected thereto for detecting air valves. The test body (1) is provided with a control unit connected thereto for controlling its overall operation. The installation unit includes a base plate (2) and several mounting brackets (3) for placing and installing air valves. The base plate (2) is set on the test body (1) and connected thereto. Several mounting brackets (3) are set on the base plate (2) and connected thereto.

2. The air valve test bench according to claim 1, characterized in that, The control unit includes a control box connected to the test body (1) and equipped with a PLC program, as well as a control switch for opening and closing.

3. An air valve test bench according to claim 1, characterized in that, The detection unit includes several flow meters (4), several stepper motors (5), a proportional valve (6), and a display. The number of flow meters (4) is the same as the number of stepper motors (5). The test body (1) is provided with a fixing plate connected to it and used to fix the flow meters (4). The proportional valve (6) is provided on the test body (1) and connected to it. The display is provided on the test body (1) and connected to it. The flow meters (4) are connected to the air valve through a three-way pipe.

4. An air valve test bench according to claim 1, characterized in that, The test body (1) is provided with an assembly unit connected to it and cooperating with the three-way pipe. The assembly unit includes an air intake pipe plate (8) and a push cylinder (7) with a telescopic rod. The push cylinder (7) is set on the base plate (2) and connected to it. The air intake pipe plate (8) is set on the telescopic rod and connected to it. The air intake pipe plate (8) is provided with an assembly hole for the three-way pipe to be inserted and installed.

5. An air valve test bench according to claim 1, characterized in that, The base plate (2) is provided with a number of dotting needle-type cylinders (9) that are the same number as the mounting bracket (3) and connected to it.

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