A valve body testing device

Abstract

The utility model relates to the field of valve body testing technology, specifically a valve body testing device, including a base, an air pump and an auxiliary component, the air pump is installed on the upper surface of the base, a connecting hose is installed at the output end of the air pump, a flow rate detector is arranged above the base, a valve is arranged above the base, and the auxiliary component is arranged on the upper surface of the base; the auxiliary component includes a clamping unit, the clamping unit includes a support frame, the support frame is fixedly connected to the upper surface of the base, the inner wall of the support frame is slidably connected with a connecting pipe, the connecting pipe is bolted to the output end of the connecting hose, and the side surface of the connecting pipe is fixedly connected with a first positioning pin. The utility model, by providing an auxiliary component, makes the fixing operation of the equipment more convenient, thereby reducing the problem of low fixing efficiency and easy interference with the detection efficiency of the equipment when bolts are used as fixing parts, and further improves the detection efficiency of the equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of valve body testing, in particular to a valve body testing device. Background Art

[0002] The valve body is a major component in a valve. It is usually made of metal materials, such as cast iron, cast steel, stainless steel, etc., to ensure its strength and durability. Its design and structure vary according to different types of valves and application scenarios. Different industries and fields have different requirements for valve bodies. For example, in the petrochemical industry, the valve body needs to have corrosion resistance and high temperature resistance; in some high-precision control occasions, the valve body is required to have good sealing performance and precise flow control capabilities; with the increasing requirements for valve bodies, today's manufacturers will use testing equipment to test the valve body after producing the valve body to ensure that the valve bodies sold are qualified products.

[0003] Prior art such as the utility model with publication number CN213956667U discloses a valve body sealing test device. The patent adopts a base, the upper surface of the base is fixedly connected with an air cylinder, the surface of the air cylinder is connected with a pipeline, the right side of the surface of the pipeline is fixedly connected with a sealing ring, the surface of the sealing ring is fixedly connected with a connecting plate, one end of the connecting plate is connected with a telescopic hose, one end of the telescopic hose is fixedly connected with a first fixed disk, the first fixed disk is fixedly connected with a valve body, and the right surface of the valve body is fixedly connected with a second fixed disk. The utility model relates to the field of valve body testing technology. By introducing the air outlet pipe into the drainage box, the air pressure in the drainage box increases, and the air pressure squeezes the water in the drainage box into the water collecting box. The amount of water in the water collecting box can be observed with a scale. The amount of water in the water collecting box can reflect the degree of sealing of the air tightness, and the air tightness can be quantitatively measured. The measurement result is more accurate, which solves the problem that the existing valve body air tightness test is often difficult to detect due to the small amount of gas, thereby causing inaccurate measurement data, affecting the service life of the valve body, and the air tightness measurement device is easily affected by external conditions, causing interference with the test and affecting the test results.

[0004] In the process of inspecting the valve body with the help of a testing device, there is an existing valve body inspection device, such as the above-mentioned one, which fixes the inspected valve body with bolts during the inspection operation. Since the disassembly and assembly efficiency of the bolts is slow, when the equipment is fixed with the help of bolts, it will interfere with the inspection efficiency of the equipment itself. At the same time, since the number of valve bodies to be inspected by the production enterprise is large, the equipment that uses bolts as fixing parts will be difficult to meet the inspection needs of the production enterprise, resulting in the problem that the inspection efficiency of the production enterprise is constrained by the equipment. Utility Model Content

[0005] The utility model aims to solve the disadvantages of the prior art at least to a certain extent, and proposes a valve body testing device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a valve body testing device, comprising a base, an air pump and an auxiliary component, wherein the air pump is installed on the upper surface of the base, a connecting hose is installed at the output end of the air pump, a flow rate detector is arranged above the base, a valve is arranged above the base, and the auxiliary component is arranged on the upper surface of the base;

[0007] The auxiliary component includes a clamping unit, and the clamping unit includes a support frame, the support frame is fixedly connected to the upper surface of the base, the inner wall of the support frame is slidably connected with a connecting pipe, the connecting pipe is bolted to the output end of the connecting hose, the side surface of the connecting pipe is fixedly connected with a first positioning pin, the first positioning pin is plugged into the hole on the surface of the valve, the upper surface of the base is fixedly connected with a positioning frame, the inner wall of the positioning frame is fixedly connected with an exhaust pipe, the exhaust pipe is fixedly connected to the side surface of the flow rate detector, the side surface of the exhaust pipe is fixedly connected with a second positioning pin, the second positioning pin is plugged into the hole on the surface of the valve;

[0008] The auxiliary component also includes a driving unit, which includes a limiting swivel, which is rotatably connected to the inner wall of the support frame, a driven ring is fixedly connected to the side surface of the limiting swivel, the driven ring is threadedly connected to the surface of the connecting pipe, a tooth groove is provided on the surface of the driven ring, a servo motor is installed on the upper surface of the base, a connecting shaft is rotatably connected to the driving end of the servo motor, a transmission gear is bolted to the surface of the connecting shaft, and the transmission gear is meshed with the tooth groove on the surface of the driven ring.

[0009] Preferably, the side surfaces of the connecting pipe and the exhaust pipe are fixedly connected with rubber gaskets, and the rubber gaskets are in contact with the surface of the valve. By installing the rubber gaskets on the sides of the connecting pipe and the exhaust pipe, the sealing of the contact parts between the connecting pipe and the exhaust pipe and the valve can be increased to reduce the leakage probability of the equipment, thereby improving the detection accuracy of the equipment.

[0010] Preferably, a guide rod is fixedly connected to the side surface of the connecting tube, and the guide rod is slidably connected to the inner wall of the support frame. By installing the guide rod on the surface of the connecting tube, the moving direction of the connecting tube can be guided with the assistance of the support frame to ensure that the connecting tube can stably engage with the driven ring.

[0011] Preferably, the connecting pipe is connected to the inner wall of the connecting hose, and the connecting pipe is connected to the inner wall of the valve. The connecting hose and the valve can be connected through the connecting pipe installed inside the support frame, so that the air in the connecting hose can flow into the valve stably.

[0012] Preferably, the exhaust pipe is connected to the inner wall of the valve, and the exhaust pipe is connected to the inner wall of the flow velocity detector. The flow velocity detector and the valve can be connected by installing the exhaust pipe in the positioning frame, so that the air in the valve can flow stably to the detection area of ​​the flow velocity detector.

[0013] Preferably, the limiting swivel is sleeved with the surface of the connecting pipe, and the position of the driven ring can be constrained by the cooperation between the limiting swivel and the support frame to ensure that the driven ring is always in the same position when rotating.

[0014] Preferably, the number of the guide rods is three, and the three guide rods are arranged in a circular array about the connecting tube. The guide rods penetrate the side surface of the support frame. The support frame is installed above the base, so as to support and limit the position of the connecting tube to ensure the stability of the connecting tube in the working state.

[0015] Compared with the prior art, the advantages and positive effects of the utility model are:

[0016] In the utility model, by setting an auxiliary component, when testing the valve, the valve is placed on the installation area of ​​the exhaust pipe and the second positioning pin, the switch of the servo motor is turned on, the servo motor is energized to drive the connecting shaft, the connecting shaft drives the transmission gear, the transmission gear is meshed with the tooth groove of the driven collar, the driven collar is driven to rotate and meshed with the thread outside the connecting pipe, and the connecting pipe, under the action of the driven collar, pushes the first positioning pin and the rubber gasket to move in the direction of the valve, the first positioning pin is inserted into the hole of the valve, and when the rubber gasket reaches the surface of the valve, the connecting pipe can cooperate with the exhaust pipe to clamp the valve, and then the fixing operation of the valve is completed. After completing the operation, turn on the switch of the air pump, the air pump pumps air into the connecting hose, and the connecting hose cooperates with the connecting pipe to send the air into the valve. When the airtightness of the valve meets the standard, the value on the flow rate detector located at the exhaust pipe will not change. When the airtightness of the valve does not meet the standard, the air enters the exhaust pipe through the valve, the air flow rate in the exhaust pipe increases, and the value on the flow rate detector changes. By setting auxiliary components, the fixing operation of the equipment is more convenient, thereby reducing the low fixing efficiency and easy interference with the detection efficiency of the equipment when bolts are used as fixing parts, and further improving the detection efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional structural schematic diagram of a valve body testing device is proposed for the utility model;

[0018] Figure 2 A side structural schematic diagram of a valve body testing device is provided for the utility model;

[0019] Figure 3 A front view of a valve body testing device is provided for the utility model;

[0020] Figure 4 A schematic diagram of the structure of an auxiliary component of a valve body testing device is provided for the utility model;

[0021] Figure 5 The utility model provides a partial structural schematic diagram of an auxiliary component of a valve body testing device.

[0022] Legend:

[0023] 1. Base; 2. Air pump; 3. Connecting hose; 4. Flow rate detector; 5. Valve; 6. Auxiliary components; 61. Clamping unit; 611. Support frame; 612. Connecting pipe; 613. First positioning pin; 614. Positioning frame; 615. Exhaust pipe; 616. Second positioning pin; 617. Rubber gasket; 62. Driving unit; 621. Limiting swivel; 622. Driven collar; 623. Servo motor; 624. Connecting shaft; 625. Transmission gear; 626. Guide rod. DETAILED DESCRIPTION

[0024] See also Figure 1-Figure 5 The utility model provides a technical solution: a valve body testing device, including a base 1, an air pump 2 and an auxiliary component 6, the air pump 2 is installed on the upper surface of the base 1, a connecting hose 3 is installed at the output end of the air pump 2, a flow rate detector 4 is arranged above the base 1, a valve 5 is arranged above the base 1, and the auxiliary component 6 is arranged on the upper surface of the base 1.

[0025] In this embodiment: the auxiliary component 6 includes a clamping unit 61, and the clamping unit 61 includes a support frame 611, the support frame 611 is fixedly connected to the upper surface of the base 1, the inner wall of the support frame 611 is slidably connected with a connecting pipe 612, the connecting pipe 612 is bolted to the output end of the connecting hose 3, the side surface of the connecting pipe 612 is fixedly connected with a first positioning pin 613, the first positioning pin 613 is plugged into the hole on the surface of the valve 5, the upper surface of the base 1 is fixedly connected with a positioning frame 614, the inner wall of the positioning frame 614 is fixedly connected with an exhaust pipe 615, the exhaust pipe 615 is fixedly connected to the side surface of the flow rate detector, the side surface of the exhaust pipe 615 is fixedly connected with a second positioning pin 616, and the second positioning pin 616 is plugged into the hole on the surface of the valve 5;

[0026] The auxiliary component 6 also includes a driving unit 62, which includes a limiting swivel 621, which is rotatably connected to the inner wall of the support frame 611, and a driven ring 622 is fixedly connected to the side surface of the limiting swivel 621. The driven ring 622 is threadedly connected to the surface of the connecting tube 612, and a tooth groove is provided on the surface of the driven ring 622. A servo motor 623 is installed on the upper surface of the base 1, and a connecting shaft 624 is rotatably connected to the driving end of the servo motor 623. A transmission gear 625 is bolted to the surface of the connecting shaft 624, and the transmission gear 625 is meshed with the tooth groove on the surface of the driven ring 622.

[0027] Specifically, the side surfaces of the connecting pipe 612 and the exhaust pipe 615 are fixedly connected with rubber gaskets 617, and the rubber gaskets 617 are in contact with the surface of the valve 5. By installing the rubber gaskets 617 on the sides of the connecting pipe 612 and the exhaust pipe 615, the sealing of the contact parts between the connecting pipe 612 and the exhaust pipe 615 and the valve 5 can be increased to reduce the leakage probability of the equipment, thereby improving the detection accuracy of the equipment.

[0028] Specifically, a guide rod 626 is fixedly connected to the side surface of the connecting tube 612 , and the guide rod 626 is slidably connected to the inner wall of the support frame 611 .

[0029] In this embodiment, the guide rod 626 installed on the surface of the connecting tube 612 can guide the moving direction of the connecting tube 612 with the assistance of the support frame 611 to ensure that the connecting tube 612 can be stably engaged with the driven ring 622.

[0030] Specifically, the connecting pipe 612 is connected to the inner wall of the connecting hose 3, and the connecting pipe 612 is connected to the inner wall of the valve 5. The connecting pipe 612 installed inside the support frame 611 can connect the connecting hose 3 and the valve 5, so that the air in the connecting hose 3 can flow into the valve 5 stably.

[0031] In this embodiment: the exhaust pipe 615 is communicated with the inner wall of the valve 5 , and the exhaust pipe 615 is communicated with the inner wall of the flow velocity detector 4 .

[0032] In this embodiment: the flow velocity detector 4 and the valve 5 can be connected through the exhaust pipe 615 installed in the positioning frame 614, so that the air in the valve 5 can stably flow to the detection area of ​​the flow velocity detector 4.

[0033] Specifically, the limiting swivel 621 is sleeved with the surface of the connecting tube 612. Through the cooperation between the limiting swivel 621 and the support frame 611, the position of the driven ring 622 can be constrained to ensure that the driven ring 622 is always in the same position when rotating.

[0034] Specifically, there are three guide rods 626 , which are arranged in a circular array about the connecting tube 612 , and the guide rods 626 penetrate the side surface of the support frame 611 .

[0035] In this embodiment: the support frame 611 installed above the base 1 can support and limit the position of the connecting pipe 612 to ensure the stability of the connecting pipe 612 in the working state.

[0036] Working principle: When testing the valve 5, the valve 5 is placed on the installation area of ​​the exhaust pipe 615 and the second positioning pin 616, and the switch of the servo motor 623 is turned on. The servo motor 623 is powered on to drive the connecting shaft 624, and the connecting shaft 624 drives the transmission gear 625. The transmission gear 625 is meshed with the tooth groove of the driven collar 622. The driven collar 622 is driven to rotate and mesh with the thread outside the connecting tube 612. Under the action of the driven collar 622, the connecting tube 612 pushes the first positioning pin 613 and the rubber gasket 617 to move in the direction of the valve 5. The first positioning pin 613 is inserted into the hole of the valve 5, and then the connecting tube 612 is driven to rotate and mesh with the thread outside the connecting tube 612. When the rubber pad touches the surface of the valve 5, the connecting tube 612 can cooperate with the exhaust pipe 615 to clamp the valve 5, and then the fixing operation of the valve 5 is completed. After the operation is completed, turn on the switch of the air pump 2, and the air pump 2 pumps the air into the connecting hose 3. The connecting hose 3 cooperates with the connecting tube 612 to send the air into the valve 5. When the airtightness of the valve 5 meets the standard, the value on the flow rate detector 4 located at the exhaust pipe 615 will not change. When the airtightness of the valve 5 does not meet the standard, when the air enters the exhaust pipe 615 through the valve 5, the air flow rate in the exhaust pipe 615 increases, and the value on the flow rate detector 4 changes.

Claims

1. A valve body testing device, comprising a base (1), an air pump (2) and an auxiliary component (6), characterized in that: The air pump (2) is mounted on the upper surface of the base (1); a connecting hose (3) is mounted on the output end of the air pump (2); a flow rate detector (4) is disposed above the base (1); a valve (5) is disposed above the base (1); and the auxiliary component (6) is disposed on the upper surface of the base (1); The auxiliary component (6) comprises a clamping unit (61), and the clamping unit (61) comprises a support frame (611), the support frame (611) is fixedly connected to the upper surface of the base (1), the inner wall of the support frame (611) is slidably connected to a connecting pipe (612), the connecting pipe (612) is bolted to the output end of the connecting hose (3), the side surface of the connecting pipe (612) is fixedly connected to a first positioning pin (613), the first positioning pin (613) is plugged into a hole on the surface of the valve (5), the upper surface of the base (1) is fixedly connected to a positioning frame (614), the inner wall of the positioning frame (614) is fixedly connected to an exhaust pipe (615), the exhaust pipe (615) is fixedly connected to the side surface of the flow rate detector, and the side surface of the exhaust pipe (615) is fixedly connected to a second positioning pin (616), the second positioning pin (616) is plugged into a hole on the surface of the valve (5).

2. A valve body testing device according to claim 1, characterized in that: The auxiliary component (6) further comprises a driving unit (62), wherein the driving unit (62) comprises a limit swivel (621), wherein the limit swivel (621) is rotatably connected to the inner wall of the support frame (611), a driven collar (622) is fixedly connected to the side surface of the limit swivel (621), wherein the driven collar (622) is threadedly connected to the surface of the connecting tube (612), and a tooth groove is provided on the surface of the driven collar (622), and a servo motor (623) is mounted on the upper surface of the base (1), wherein the driving end of the servo motor (623) is rotatably connected to a connecting shaft (624), and a transmission gear (625) is bolted to the surface of the connecting shaft (624), and the transmission gear (625) is meshed with the tooth groove on the surface of the driven collar (622).

3. A valve body testing device according to claim 1 or 2, characterized in that: The side surfaces of the connection pipe (612) and the exhaust pipe (615) are both fixedly connected with a rubber gasket (617), and the rubber gasket (617) is in contact with the surface of the valve (5).

4. A valve body testing device according to claim 1 or 2, characterized in that: A guide rod (626) is fixedly connected to the side surface of the connecting tube (612), and the guide rod (626) is slidably connected to the inner wall of the support frame (611).

5. A valve body testing device according to claim 4, characterized in that: The number of the guide rods (626) is three, and the three guide rods (626) are arranged in a circular array with respect to the connecting tube (612), and the guide rods (626) penetrate the side surface of the support frame (611).

6. A valve body testing device according to claim 1 or 2, characterized in that: The connecting pipe (612) is in communication with the inner wall of the connecting hose (3), and the connecting pipe (612) is in communication with the inner wall of the valve (5).

7. A valve body testing device according to claim 1 or 2, characterized in that: The exhaust pipe (615) is in communication with the inner wall of the valve (5), and the exhaust pipe (615) is in communication with the inner wall of the flow rate detector (4).

8. A valve body testing device according to claim 2, characterized in that: The limiting swivel (621) is sleeved with the surface of the connecting pipe (612).

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