Valve body air tightness detection equipment

Abstract

The utility model discloses a valve body air tightness detection device, which comprises a water storage tank and a mounting plate, the mounting plate is fixed on the outer wall of the water storage tank in a penetrating manner, the four corners of the top of the mounting plate are fixedly connected with supporting rods respectively, the tops of the supporting rods are fixedly connected with a top plate, and the middle part of the top side of the top plate is fixedly connected with a hydraulic cylinder. The movable end of the hydraulic cylinder penetrates through the bottom side of the top plate and is fixedly connected with a lifting frame, different installation angles are simulated through the output shaft of the first servo motor to test the airtight effect, a connecting flange is used for assembling and connecting a valve body, and compared with a clamping mechanism, the device is closer to the actual installation mode of the valve body; the air tightness detection operation and detection data better conform to the reality, the transverse adjustment mode of the threaded rod on the movable pipe is more accurate, the applicability is greatly improved, the inner cavity of the valve body can be directly dried, and the situation that after detection treatment, residual accumulated water in the valve body affects the subsequent test operation is avoided.

Description

Technical Field

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

[0002] The valve body is a major component in the valve; there are different mechanical manufacturing methods according to the pressure level, such as casting, forging, etc. The definition of "valve" is a device used to control the direction, pressure, and flow of the fluid in the fluid system. The valve is a device that allows the medium (liquid, gas, powder) in the piping and equipment to flow or stop and can control its flow.

[0003] In the prior art, application number 202322012030.1 discloses a valve body air tightness detection device, including a base plate, an air tightness detection mechanism and a fixed boosting mechanism, the air tightness detection mechanism is installed at the top end, the fixed boosting mechanism is installed at the bottom end of the air tightness detection mechanism, the fixed boosting mechanism includes a pushing and squeezing unit and a fixed boosting unit, the pushing and squeezing unit is installed on the top surface of the base plate, the fixed boosting unit is installed on the top surface of the base plate, and the fixed boosting unit is installed on the right side of the pushing and squeezing unit; after the above-mentioned device clamps and positions the valve body, the valve body can only be immersed in the immersion pool at a suitable angle, and the squeezing and clamping of the valve body cannot simulate the actual use situation, which will cause the detection effect to deviate, and after the detection process, the residual water inside will affect the subsequent test operation.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a valve body air tightness detection device to overcome the above technical problems existing in the existing related technology.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] A valve body air tightness detection device comprises a water tank and a mounting plate, wherein the mounting plate is penetrated and fixed to the outer wall of the water tank, the four corners of the top of the mounting plate are respectively fixedly connected with support rods, the top of the support rods is fixedly connected with a top plate, the middle part of the top side of the top plate is fixedly connected with a hydraulic cylinder, the movable end of the hydraulic cylinder penetrates the bottom side of the top plate and is fixedly connected with a lifting frame, and the front side of the water tank is penetrated with guide glass plates at the top and bottom.

[0008] Preferably, the lifting frame includes an L-shaped mounting plate and a first servo motor, wherein the first servo motor is fixedly connected to the right side of the L-shaped mounting plate, and the output shaft of the first servo motor extends into the interior of the L-shaped mounting plate and is fixedly connected with a fixing tube.

[0009] Preferably, a movable tube is provided on the left side of the fixed tube, a first connecting ring is sleeved and fixed on the outer wall of the fixed tube, an arc-shaped groove is dug on the right side of the top of the water tank, and the first connecting ring is movably engaged with the inner wall of the arc-shaped groove.

[0010] Preferably, the fixed tube and the movable tube are fixedly connected with connecting flanges at opposite ends thereof, an air intake pipe is provided on the left side of the movable tube through a solenoid valve, and the L-shaped mounting plate is movably sleeved on the outside of the support rod.

[0011] Preferably, an adjustment seat is fixedly connected to the middle part of the top side of the inner wall of the L-shaped mounting plate, a rectangular groove is dug into the bottom side of the adjusting seat, a mounting cavity is provided on the right side of the adjusting seat wall cavity, a second servo motor is fixedly connected inside the mounting cavity, a threaded rod is connected to the left side of the inner wall of the rectangular groove through a bearing, and guide rods are provided on both sides of the threaded rod.

[0012] Preferably, a convex moving block is sleeved on the outer side of the threaded rod and the guide rod, a second connecting ring is fixedly connected to the bottom side of the convex moving block, and the interior of the second connecting ring is sleeved on the outer wall of the movable tube through a bearing.

[0013] Preferably, a nut is provided inside the convex moving block through a bearing, and the nut is threadedly connected to the threaded rod through a matching thread, and the output shaft of the second servo motor extends into the rectangular groove and is fixedly connected to the right end of the threaded rod.

[0014] Preferably, a fixing ring is fixedly connected to the middle of the movable tube wall cavity, and ventilation nets are respectively embedded in the front and back of the fixing ring. The fixing ring is specifically a hollow structure, and an electric heating tube is fixedly connected to the fixing ring wall cavity.

[0015] The beneficial effects of the utility model are as follows: the airtight effect is tested by simulating different installation angles through the output shaft of the first servo motor, and the valve body is connected by assembling the connecting flange. Compared with the clamping mechanism, it is closer to the actual installation method of the valve body, so that the airtightness detection operation and the detection data are more in line with reality, and the lateral adjustment method of the movable tube by the threaded rod is more accurate, and the applicability is greatly improved. The inner cavity of the valve body can be directly dried to avoid the subsequent test operation affected by residual water inside the valve body after the detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1It is a schematic diagram of the overall structure of a valve body air tightness detection device according to an embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of the appearance structure of a lifting frame of a valve body air tightness detection device according to an embodiment of the utility model;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of an adjustment seat of a valve body air tightness detection device according to an embodiment of the utility model;

[0020] Figure 4 The utility model is a schematic diagram of the internal structure of a movable tube of a valve body air tightness detection device according to an embodiment of the utility model.

[0021] In the figure:

[0022] 1. Water tank; 2. Mounting plate; 3. Support rod; 4. Top plate; 5. Hydraulic cylinder; 6. Lifting frame; 7. Guide glass plate; 8. L-shaped mounting plate; 9. First servo motor; 10. Fixed tube; 11. Movable tube; 12. First connecting ring; 13. Arc groove; 14. Connecting flange; 15. Inlet pipe; 16. Adjustment seat; 17. Rectangular groove; 18. Mounting cavity; 19. Second servo motor; 20. Threaded rod; 21. Guide rod; 22. Convex moving block; 23. Second connecting ring; 24. Fixed ring; 25. Ventilation net; 26. Electric heating tube. DETAILED DESCRIPTION

[0023] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0024] According to an embodiment of the utility model, a valve body air tightness detection device is provided.

[0025] Embodiment 1

[0026] like Figure 1-4As shown, a valve body air tightness detection device according to an embodiment of the utility model includes a water storage tank 1, a mounting plate 2, the mounting plate 2 is fixed to the outer wall of the water storage tank 1, the four corners of the top of the mounting plate 2 are fixedly connected to support rods 3, the top of the support rod 3 is fixedly connected to a top plate 4, the middle of the top side of the top plate 4 is fixedly connected to a hydraulic cylinder 5, the movable end of the hydraulic cylinder 5 passes through the bottom side of the top plate 4, and is fixedly connected to a lifting frame 6, the front side of the water storage tank 1 is respectively penetrated by a guide glass plate 7, and the lifting frame 6 includes an L-shaped mounting The first servo motor 9 is fixedly connected to the right side of the L-shaped mounting plate 8, the output shaft of the first servo motor 9 extends into the L-shaped mounting plate 8, and is fixedly connected with a fixed pipe 10, a movable pipe 11 is arranged on the left side of the fixed pipe 10, a first connecting ring 12 is fixedly arranged on the outer wall of the fixed pipe 10, an arc groove 13 is dug on the right side of the top of the water storage tank 1, the first connecting ring 12 is movably engaged with the inner wall of the arc groove 13, and the opposite ends of the fixed pipe 10 and the movable pipe 11 are respectively fixedly connected with connecting flanges 14 , an air intake pipe 15 is provided on the left side of the movable tube 11 through the electromagnetic valve, and the L-shaped mounting plate 8 is movably sleeved on the outside of the support rod 3. The two ends of the valve body to be tested can be respectively connected and fixed to the connecting flanges 14 at the inner ends of the fixed tube 10 and the movable tube 11, and then the hydraulic cylinder 5 is started. The movable end of the hydraulic cylinder 5 drives the L-shaped mounting plate 8 to descend, so that the fixed tube 10 and the movable tube 11 drive the installed valve body to enter the water tank 1 filled with liquid. The fixed tube 10 will be embedded in the arc groove 13 on the right side of the top of the water tank 1 for support, and then the first servo motor 9 is started. The output shaft of the first servo motor 9 drives the fixed tube 10 to rotate, so that the fixed tube 10 drives the valve body and the movable tube 11 to rotate in the water tank 1, so that the valve body rotates and is immersed in water for testing, and the output shaft of the first servo motor 9 can simulate different installation angles to test the airtight effect, and the valve body is assembled with the connecting flange 14. Compared with the clamping mechanism, it is closer to the actual installation method of the valve body, so that the airtightness detection operation and detection data are more in line with reality.

[0027] Embodiment 2

[0028] like Figure 1-4As shown, a valve body air tightness detection device according to an embodiment of the utility model includes a water storage tank 1, a mounting plate 2, the mounting plate 2 is fixed to the outer wall of the water storage tank 1, the four corners of the top of the mounting plate 2 are fixedly connected to support rods 3, the top of the support rod 3 is fixedly connected to a top plate 4, the middle of the top side of the top plate 4 is fixedly connected to a hydraulic cylinder 5, the movable end of the hydraulic cylinder 5 passes through the bottom side of the top plate 4, and is fixedly connected to a lifting frame 6, the front side of the water storage tank 1 is respectively penetrated by a guide glass plate 7, and the middle of the top side of the inner wall of the L-shaped mounting plate 8 is fixedly connected to an adjustment seat 16, a rectangular groove 17 is dug on the bottom side of the adjustment seat 16, a mounting cavity 18 is provided on the right side of the wall cavity of the adjustment seat 16, a second servo motor 19 is fixedly connected inside the mounting cavity 18, a threaded rod 20 is connected to the left side of the inner wall of the rectangular groove 17 through a bearing, and guide rods 21 are provided on both sides of the threaded rod 20, the adjustment seat 16 is fixedly connected to the middle part of the top side of the inner wall of the L-shaped mounting plate 8, a rectangular groove 17 is dug on the bottom side of the adjustment seat 16, a mounting cavity 18 is provided on the right side of the wall cavity of the adjustment seat 16, a second servo motor 19 is fixedly connected inside the mounting cavity 18, the rectangular groove A threaded rod 20 is connected to the left side of the inner wall of the groove 17 through a bearing, and guide rods 21 are provided on both sides of the threaded rod 20. A convex moving block 22 is sleeved on the outer side of the threaded rod 20 and the guide rod 21. A second connecting ring 23 is fixedly connected to the bottom side of the convex moving block 22. The inside of the second connecting ring 23 is sleeved with the outer wall of the movable tube 11 through a bearing. A nut is passed through the inside of the convex moving block 22 through the bearing, and the nut is threadedly connected to the threaded rod 20 through the nut. The output shaft of the second servo motor 19 extends into the rectangular groove 17 and is fixed to the right end of the threaded rod 20. Connection, by starting the second servo motor 19, the output shaft of the second servo motor 19 drives the threaded rod 20 to rotate, so that the threaded rod 20 and the convex moving block 22 on the outside of the guide rod 21 drive the second connecting ring 23 to move laterally, so that the distance between the movable tube 11 and the fixed tube 10 connected inside the second connecting ring 23 is adjusted, and the lateral adjustment method of the movable tube 11 using the threaded rod 20 is more accurate, and the applicability is greatly improved, and the inner side of the second connecting ring 23 is connected to the movable tube 11 through a bearing, which will not affect the normal rotation of the valve body.

[0029] Embodiment 3

[0030] like Figure 1-4As shown, a valve body air tightness detection device according to an embodiment of the utility model includes a water storage tank 1, a mounting plate 2, the mounting plate 2 is fixed to the outer wall of the water storage tank 1, the four corners of the top of the mounting plate 2 are fixedly connected to support rods 3, the top of the support rod 3 is fixedly connected to the top of the top plate 4, the middle of the top side of the top plate 4 is fixedly connected to a hydraulic cylinder 5, the movable end of the hydraulic cylinder 5 passes through the bottom side of the top plate 4, and is fixedly connected to a lifting frame 6, the front side of the water storage tank 1 is respectively penetrated by a guide glass plate 7, the middle of the wall cavity of the movable tube 11 is fixedly connected to a fixing ring 24, and the front and rear of the fixing ring 24 are respectively penetrated by an embedded A ventilation net 25 is provided, and the fixing ring 24 is specifically a hollow structure, and an electric heating tube 26 is fixedly connected to the wall cavity of the fixing ring 24. After the air tightness test is completed, the connecting flange 14 between the right side of the valve body and the fixing tube 10 can be removed, so that the accumulated water inside the valve body can flow out, and at the same time, the electric heating tube 26 in the wall cavity of the fixing ring 24 is started, and ventilation is provided to the inner cavity of the valve body through the air inlet pipe 15. The heat generated by the electric heating tube 26 is transported into the inner cavity of the valve body, and the inner cavity of the valve body can be directly dried to avoid the residual water inside the valve body affecting the subsequent test operation after the detection.

[0031] In summary, with the aid of the above technical solution of the utility model, when the device is in use, by starting the second servo motor 19, the output shaft of the second servo motor 19 drives the threaded rod 20 to rotate, so that the threaded rod 20 and the convex moving block 22 on the outside of the guide rod 21 drive the second connecting ring 23 to move laterally, so that the spacing between the movable tube 11 and the fixed tube 10 connected inside the second connecting ring 23 can be adjusted, and the two ends of the valve body to be detected can be respectively connected and fixed to the connecting flanges 14 at the inner ends of the fixed tube 10 and the movable tube 11, and then gas is injected into the valve body through the air inlet pipe 15, and then the hydraulic cylinder 5 is started, and the movable end of the hydraulic cylinder 5 drives the L-shaped mounting plate 8 to descend, so that the fixed tube 10 and the movable tube 11 drive the installed valve body to enter The valve body 1 is inserted into a water tank 1 filled with liquid, and the fixed tube 10 is embedded in the arc groove 13 on the top right side of the water tank 1 for support. Then the first servo motor 9 is started, and the output shaft of the first servo motor 9 drives the fixed tube 10 to rotate, so that the fixed tube 10 drives the valve body and the movable tube 11 to rotate in the water tank 1, and the valve body is rotated and immersed in water for testing. After the air tightness test is completed, the connecting flange 14 between the right side of the valve body and the fixed tube 10 can be removed, so that the accumulated water in the valve body can flow out, and at the same time, the electric heating tube 26 in the wall cavity of the fixing ring 24 is started, and the inner cavity of the valve body is ventilated through the air inlet pipe 15, and the heat generated by the electric heating tube 26 is transported into the inner cavity of the valve body, so that the inner cavity of the valve body can be directly dried.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A valve body air tightness detection device, comprising a water storage tank (1) and a mounting plate (2), characterized in that: The mounting plate (2) penetrates and is fixed to the outer wall of the water storage tank (1); support rods (3) are fixedly connected to the four corners of the top of the mounting plate (2); a top plate (4) is fixedly connected to the top of the support rod (3); a hydraulic cylinder (5) is fixedly connected to the middle of the top side of the top plate (4); the movable end of the hydraulic cylinder (5) penetrates the bottom side of the top plate (4) and is fixedly connected to a lifting frame (6); and guide glass plates (7) are respectively penetrated at the top and bottom of the front side of the water storage tank (1).

2. A valve body air tightness detection device according to claim 1, characterized in that: The lifting frame (6) comprises an L-shaped mounting plate (8) and a first servo motor (9), wherein the first servo motor (9) is fixedly connected to the right side of the L-shaped mounting plate (8), and an output shaft of the first servo motor (9) extends into the interior of the L-shaped mounting plate (8) and is fixedly connected to a fixing pipe (10).

3. A valve body air tightness detection device according to claim 2, characterized in that: A movable tube (11) is provided on the left side of the fixed tube (10), a first connecting ring (12) is sleeved and fixed on the outer wall of the fixed tube (10), an arc-shaped groove (13) is excavated on the right side of the top of the water storage tank (1), and the first connecting ring (12) is movably engaged with the inner wall of the arc-shaped groove (13).

4. A valve body air tightness detection device according to claim 3, characterized in that: The fixed tube (10) and the movable tube (11) are respectively fixedly connected with a connecting flange (14) at one end opposite to the other, an air intake pipe (15) is provided on the left side of the movable tube (11) through a solenoid valve, and the L-shaped mounting plate (8) is movably sleeved on the outside of the support rod (3).

5. A valve body air tightness detection device according to claim 4, characterized in that: An adjustment seat (16) is fixedly connected to the middle of the top side of the inner wall of the L-shaped mounting plate (8); a rectangular groove (17) is excavated on the bottom side of the adjustment seat (16); a mounting cavity (18) is provided on the right side of the wall cavity of the adjustment seat (16); a second servo motor (19) is fixedly connected inside the mounting cavity (18); a threaded rod (20) is connected to the left side of the inner wall of the rectangular groove (17) via a bearing; guide rods (21) are provided on both sides of the threaded rod (20).

6. A valve body air tightness detection device according to claim 5, characterized in that: A convex moving block (22) is sleeved on the outside of the threaded rod (20) and the guide rod (21), a second connecting ring (23) is fixedly connected to the bottom side of the convex moving block (22), and the inside of the second connecting ring (23) is sleeved on the outer wall of the movable tube (11) via a bearing.

7. A valve body air tightness detection device according to claim 6, characterized in that: The convex moving block (22) is provided with a nut through a bearing, and is threadedly connected to the threaded rod (20) through the nut. The output shaft of the second servo motor (19) extends into the rectangular groove (17) and is fixedly connected to the right end of the threaded rod (20).

8. A valve body air tightness detection device according to claim 7, characterized in that: A fixing ring (24) is fixedly connected to the middle of the wall cavity of the movable tube (11), and ventilation nets (25) are respectively embedded in the front and rear of the fixing ring (24). The fixing ring (24) is specifically a hollow structure, and an electric heating tube (26) is fixedly connected in the wall cavity of the fixing ring (24).

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