Sealing performance detection device for ball valve production

Abstract

The utility model discloses a sealing performance detection device for ball valve production, which comprises a frame, the inner wall of the frame is fixedly connected with a placing seat, the outer surface of the placing seat is provided with a placing groove, the inner wall of the placing groove is provided with a ball valve body, and the outer surface of the placing seat and the outer surface of the ball valve body are jointly provided with a fixing mechanism. The inner wall of the frame and the outer surface of the ball valve body are jointly provided with a sealing mechanism, and a water conveying mechanism is arranged on the outer surface of the sealing mechanism. The device can accurately control the movement of fixed clamping plates through an electric push rod in the fixing mechanism, enables the two fixed clamping plates to stably clamp a ball valve body in a placement groove, guarantees that the ball valve is in a stable state during detection, can drive a lifting plate to move up and down through a hydraulic cylinder in the sealing mechanism, and pushes the lifting plate to descend, thereby achieving the detection of the ball valve. The two sealing gaskets are tightly attached to the flanges at the two ends of the ball valve body, and the sealing gaskets and the flanges at the two ends of the ball valve body can form a good sealing effect.

Description

Technical Field

[0001] This utility model relates to the field of ball valve manufacturing technology, and in particular to a sealing performance testing device for ball valve manufacturing. Background Technology

[0002] Ball valve production encompasses a series of processes, from raw material procurement and component processing to assembly and testing. It aims to meet the fluid control needs of different industries and ensures reliable quality and stable performance of ball valves through standardized and customized production.

[0003] Currently, some testing devices use manual fixation of ball valves, which makes it difficult to accurately control the fixing force. Consequently, during the testing process, the ball valve may shift or shake due to insecure fixing, resulting in inaccurate test data that cannot accurately reflect the sealing performance of the ball valve. To address this issue, we propose a sealing performance testing device for ball valve production. Utility Model Content

[0004] The purpose of this invention is to provide a sealing performance testing device for ball valve production, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A sealing performance testing device for ball valve production includes a frame, a placement seat fixedly connected to the inner wall of the frame, a placement groove formed on the outer surface of the placement seat, a ball valve body placed on the inner wall of the placement groove, a fixing mechanism shared by the outer surface of the placement seat and the outer surface of the ball valve body, a sealing mechanism shared by the inner wall of the frame and the outer surface of the ball valve body, a water conveying mechanism provided on the outer surface of the sealing mechanism, and a liquid level meter provided on the outer surface of the sealing mechanism.

[0007] In a further embodiment, the fixing mechanism includes two fixing plates, the outer surfaces of the two fixing plates are fixedly connected to the outer surface of the placement seat, each fixing plate has an opening on its outer surface, an electric push rod is fixedly connected to the side of the two fixing plates that are far apart from each other, a fixing clamp is fixedly connected to the output end of each electric push rod, and the side of the two fixing clamps that are close to each other is in contact with the outer surface of the ball valve body.

[0008] In a further embodiment, the sealing mechanism includes a hydraulic cylinder, the outer surface of which is fixedly installed to the inner wall of the frame, a lifting plate is fixedly connected to the output end of the hydraulic cylinder, and two sealing gaskets are fixedly connected to the outer surface of the lifting plate, with the outer surfaces of the two sealing gaskets respectively contacting both ends of the ball valve body.

[0009] In a further embodiment, the water supply mechanism includes a water supply valve, the outer surface of which is fixedly installed on the outer surface of the lifting plate. The input end of the water supply valve is fixedly connected to a first water supply pipe, and the output end of the water supply valve is fixedly connected to a second water supply pipe. The outer surface of the second water supply pipe is fixedly connected to the outer surface of the lifting plate and the outer surface of one of the sealing gaskets. The outer surface of the liquid level gauge is fixedly connected to the outer surface of the lifting plate and the outer surface of the other sealing gasket.

[0010] In a further embodiment, a control panel is fixedly installed on the inner wall of the frame, and a water storage box is fixedly connected to the inner wall of the frame.

[0011] In a further embodiment, a drain pipe is fixedly connected to the outer surface of the water storage box, and a sealing cap is threaded onto the outer surface of the drain pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This device uses an electric push rod in the fixing mechanism to precisely control the movement of the fixing plates, ensuring that the two fixing plates firmly clamp the ball valve body in the placement groove. This effectively prevents displacement or shaking of the ball valve body during the sealing test, ensuring the ball valve remains stable during testing and thus guaranteeing the accuracy and reliability of the test data. A hydraulic cylinder in the sealing mechanism moves the lifting plate up and down. After the ball valve body is placed, the hydraulic cylinder pushes the lifting plate down, causing the two sealing gaskets to tightly adhere to the flanges at both ends of the ball valve body. The sealing gaskets form a good seal with the flanges at both ends of the ball valve body, effectively preventing liquid leakage during testing. This sealing method ensures that when water is injected into the ball valve by the water supply mechanism, the pressure acts stably on the sealing parts of the ball valve, thereby accurately testing the sealing performance of the ball valve. The water supply valve in the water supply mechanism controls the water flow. The first water supply pipe connects to an external water source, and the second water supply pipe delivers water to the inside of the ball valve body. The level gauge is connected to the lifting plate and the sealing gaskets, enabling real-time monitoring of the water level changes inside the ball valve, thereby achieving the testing of the ball valve's sealing performance. Attached Figure Description

[0014] Figure 1 This is a front view schematic diagram of a sealing performance testing device for ball valve production.

[0015] Figure 2 This is a side view of a sealing performance testing device for ball valve manufacturing.

[0016] Figure 3 A sealing performance testing device for ball valve manufacturing Figure 2 Enlarged structural diagram at point A in the middle.

[0017] Figure 4 This is a rear view schematic diagram of a sealing performance testing device for ball valve production.

[0018] Figure 5 This is a front sectional view of a sealing performance testing device used in ball valve production.

[0019] In the diagram: 1. Frame; 2. Placement seat; 3. Placement slot; 4. Ball valve body; 5. Fixing mechanism; 501. Fixing plate; 502. Opening; 503. Electric push rod; 504. Fixing clamp; 6. Sealing mechanism; 601. Hydraulic cylinder; 602. Lifting plate; 603. Sealing gasket; 7. Water supply mechanism; 701. Water supply valve; 702. First water supply pipe; 703. Second water supply pipe; 8. Liquid level meter; 9. Control board; 10. Water storage box; 11. Drain pipe; 12. Sealing cover. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 In this utility model, a sealing performance testing device for ball valve production includes a frame 1, a placement seat 2 fixedly connected to the inner wall of the frame 1, a placement groove 3 opened on the outer surface of the placement seat 2, a ball valve body 4 placed on the inner wall of the placement groove 3, a fixing mechanism 5 jointly provided on the outer surface of the placement seat 2 and the outer surface of the ball valve body 4, a sealing mechanism 6 jointly provided on the inner wall of the frame 1 and the outer surface of the ball valve body 4, a water conveying mechanism 7 provided on the outer surface of the sealing mechanism 6, and a liquid level meter 8 provided on the outer surface of the sealing mechanism 6.

[0024] Its core structure includes a frame 1, which is welded from high-strength stainless steel, possessing good stability and corrosion resistance, and capable of withstanding pressure and vibration during the testing process. The surface of the placement seat 2 is treated with anti-slip material, and its outer surface has a placement groove 3 that matches the shape of the ball valve body 4. The bottom of the placement groove 3 is equipped with a buffer rubber pad to prevent bumps and damage when placing the ball valve body 4.

[0025] The fixing mechanism 5 includes two fixing plates 501. The outer surfaces of the two fixing plates 501 are fixedly connected to the outer surface of the placement seat 2. Each fixing plate 501 has an opening 502 on its outer surface. An electric push rod 503 is fixedly connected to the side of the two fixing plates 501 that is far apart from each other. A fixing clamp 504 is fixedly connected to the output end of each electric push rod 503. The side of the two fixing clamps 504 that is close to each other is in contact with the outer surface of the ball valve body 4.

[0026] The electric actuator 503 is a high-precision servo electric actuator 503. Its stroke and thrust can be precisely adjusted by the control board 9. The output end of the electric actuator 503 is connected to the fixing clamp 504. The inner side of the fixing clamp 504 is covered with a flexible silicone layer, which can not only ensure the stable clamping of the ball valve body 4, but also prevent damage to the outer surface of the ball valve. The two fixing clamps 504 cooperate with each other to firmly fix the ball valve body 4 in the placement groove 3.

[0027] The sealing mechanism 6 includes a hydraulic cylinder 601. The outer surface of the hydraulic cylinder 601 is fixedly installed on the inner wall of the frame 1. A lifting plate 602 is fixedly connected to the output end of the hydraulic cylinder 601. Two sealing gaskets 603 are fixedly connected to the outer surface of the lifting plate 602. The outer surfaces of the two sealing gaskets 603 are in contact with the two ends of the ball valve body 4 respectively.

[0028] In the sealing mechanism 6, the hydraulic cylinder 601 is fixedly installed on the inner wall of the top of the frame 1, which can realize the smooth lifting of the lifting plate 602. The lifting plate 602 is made of lightweight and high-strength aluminum alloy. The two sealing gaskets 603 fixedly connected to its outer surface are made of polytetrafluoroethylene rubber, which has excellent sealing performance and chemical stability, and can tightly fit the two ends of the ball valve body 4 to form a reliable sealing environment.

[0029] The water supply mechanism 7 includes a water supply valve 701. The outer surface of the water supply valve 701 is fixedly installed on the outer surface of the lifting plate 602. The input end of the water supply valve 701 is fixedly connected to the first water supply pipe 702, and the output end of the water supply valve 701 is fixedly connected to the second water supply pipe 703. The outer surface of the second water supply pipe 703 is fixedly connected to the outer surface of the lifting plate 602 and the outer surface of one of the sealing gaskets 603. The outer surface of the liquid level meter 8 is fixedly connected to the outer surface of the lifting plate 602 and the outer surface of the other sealing gasket 603.

[0030] The water supply valve 701 of the water supply mechanism 7 is an electric regulating ball valve, and the opening degree can be precisely controlled by the control board 9. The input end of the water supply valve 701 is connected to the first water supply pipe 702 through a quick connector. The first water supply pipe 702 is connected to an external water source, and the output end is connected to the second water supply pipe 703. The second water supply pipe 703 passes through the lifting plate 602 and is connected to the internal channel of one of the sealing gaskets 603. The liquid level meter 8 is installed at the connection between the lifting plate 602 and the other sealing gasket 603, and can measure the changes in the water level inside the ball valve in real time and accurately.

[0031] A control panel 9 is fixedly installed on the inner wall of the frame 1. A water storage box 10 is fixedly connected to the inner wall of the frame 1. A drain pipe 11 is fixedly connected to the outer surface of the water storage box 10. A sealing cap 12 is threadedly connected to the outer surface of the drain pipe 11.

[0032] The water storage box 10, which is fixedly connected to the inner wall of the frame 1, is used to collect water from the ball valve. It is made of transparent acrylic material, which makes it easy to observe the internal water level. The drain pipe 11 connected to the outer surface of the water storage box 10 is used to discharge the wastewater after testing. The sealing cap 12 at the port of the drain pipe 11 has a rubber sealing ring, which can prevent liquid leakage and dust from entering when not draining.

[0033] The working principle of this utility model is as follows:

[0034] The operator places the ball valve body 4 to be tested into the placement groove 3 of the placement seat 2. The shape of the placement groove 3 matches the shape of the ball valve body 4, thus initially positioning the ball valve body 4. Then, the electric push rods 503 on the two fixing plates 501 in the fixing mechanism 5 are activated simultaneously to push the fixing clamp 504 towards the ball valve body 4. The two fixing clamps 504 gradually clamp the ball valve body 4 until it is firmly fixed in the placement groove 3. After the ball valve is fixed, the hydraulic cylinder 601 in the sealing mechanism 6 pushes the lifting plate 602 downward. The two sealing gaskets 603 installed on the lifting plate 602 descend accordingly and fit tightly against the flanges at both ends of the ball valve body 4, thus forming a good sealing effect with the flange surfaces at both ends of the ball valve and preventing liquid leakage from both ends of the ball valve during the testing process. After the ball valve is fixed and both ends are sealed, water is supplied using the water supply mechanism 7, and the water supply valve 701 is opened. External water flows into the water supply valve 701 through the first water supply pipe 702, and then into the ball valve through the second water supply pipe 703. At this time, the ball valve gradually fills with liquid and forms a certain pressure, simulating the working state of the ball valve in actual use. The level gauge 8 monitors the water level change inside the ball valve in real time. If the ball valve is not sealed properly, liquid will seep out from the leak, causing the water level inside the ball valve to change. The level gauge 8 will capture this change in time and send a signal. The tester can use this to judge whether the sealing performance of the ball valve is qualified. After the test is completed, the water supply valve 701 is closed to stop the water supply to the ball valve. The hydraulic cylinder 601 drives the lifting plate 602 to rise, so that the sealing gasket 603 is separated from both ends of the ball valve, releasing the sealing state. Subsequently, the electric push rod 503 drives the fixed clamp 504 to loosen the ball valve body 4. The operator can take out the ball valve after the test, completing one test cycle.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sealing performance testing device for ball valve manufacturing, characterized in that: The system includes a frame (1), a placement seat (2) is fixedly connected to the inner wall of the frame (1), a placement groove (3) is opened on the outer surface of the placement seat (2), a ball valve body (4) is placed on the inner wall of the placement groove (3), a fixing mechanism (5) is provided on the outer surface of the placement seat (2) and the outer surface of the ball valve body (4), a sealing mechanism (6) is provided on the inner wall of the frame (1) and the outer surface of the ball valve body (4), a water conveying mechanism (7) is provided on the outer surface of the sealing mechanism (6), and a liquid level meter (8) is provided on the outer surface of the sealing mechanism (6).

2. The sealing performance testing device for ball valve production according to claim 1, characterized in that: The fixing mechanism (5) includes two fixing plates (501). The outer surfaces of the two fixing plates (501) are fixedly connected to the outer surface of the placement seat (2). Each fixing plate (501) has an opening (502) on its outer surface. An electric push rod (503) is fixedly connected to the side of the two fixing plates (501) that is far apart from each other. A fixing clamp (504) is fixedly connected to the output end of each electric push rod (503). The side of the two fixing clamps (504) that is close to each other is in contact with the outer surface of the ball valve body (4).

3. The sealing performance testing device for ball valve production according to claim 1, characterized in that: The sealing mechanism (6) includes a hydraulic cylinder (601), the outer surface of which is fixedly installed on the inner wall of the frame (1), the output end of which is fixedly connected to a lifting plate (602), and the outer surface of the lifting plate (602) is fixedly connected to two sealing gaskets (603), the outer surfaces of which are respectively in contact with the two ends of the ball valve body (4).

4. The sealing performance testing device for ball valve production according to claim 1, characterized in that: The water supply mechanism (7) includes a water supply valve (701), the outer surface of which is fixedly installed on the outer surface of the lifting plate (602). The input end of the water supply valve (701) is fixedly connected to a first water supply pipe (702), and the output end of the water supply valve (701) is fixedly connected to a second water supply pipe (703). The outer surface of the second water supply pipe (703) is fixedly connected to the outer surface of the lifting plate (602) and the outer surface of one of the sealing gaskets (603). The outer surface of the liquid level meter (8) is fixedly connected to the outer surface of the lifting plate (602) and the outer surface of the other sealing gasket (603).

5. A sealing performance testing device for ball valve production according to claim 1, characterized in that: A control panel (9) is fixedly installed on the inner wall of the frame (1), and a water storage box (10) is fixedly connected to the inner wall of the frame (1).

6. The sealing performance testing device for ball valve production according to claim 5, characterized in that: The outer surface of the water storage box (10) is fixedly connected to a drain pipe (11), and the outer surface of the drain pipe (11) is threaded with a sealing cap (12).

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