Valve sealing detection device

Abstract

The utility model relates to the technical field of valve detection, in particular to a valve sealing detection device, which comprises a table body, the table body comprises a detection table, and the upper surface of the detection table is fixedly connected with a support table. According to the valve limiting device, the connecting block can drive the movable rod to move through stretching and retracting of the telescopic air cylinder, the connecting plate can drive the fixed rod and the limiting plates to horizontally move, the limiting plates can get close to each other or get away from each other, and a valve can be limited through approaching of the limiting plates; the position of the valve can be fixed, the valve is not prone to displacement and shaking in the detection process, the valve is more stable in the detection process, meanwhile, through arrangement of a limiting block, the valve can move in the moving process of a limiting plate, an inlet and an outlet in the two ends of the valve can be positioned, the fixing effect on the valve is better, and the detection accuracy is improved. Therefore, the stability of the valve during detection is better, and the detection quality and accuracy can be better guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of valve detection, and particularly relates to a valve seal detection device. Background Technique

[0002] A valve is a pipeline accessory used to open and close pipelines, control the flow direction, regulate and control the parameters of the conveyed medium. It usually has functions such as cut-off, regulation, diversion, prevention of backflow, pressure stabilization, flow splitting or overflow pressure relief. When manufacturing and processing valves, in order to ensure that the sealing performance of the valves meets the design requirements and usage requirements, and to prevent problems such as leakage, pollution, and safety accidents caused by poor valve sealing, a seal detection device is usually required to detect the valve seal. A seal detection device is an instrument or device used to test the sealing performance of equipment or systems. It detects whether there is leakage in the system through various methods and measures the leakage amount. Common seal detection principles include the pressure change method, the gas permeation method, the liquid immersion method, the thermogravimetric analysis method, and the optical detection method, etc. Different principles are applicable to different types of products and test requirements. By detecting the sealing performance of the valve, products with poor sealing can be found in time and repaired or replaced, thus ensuring the overall quality of the products. At the same time, detecting the sealing performance of the valve can effectively prevent production accidents caused by valve leakage.

[0003] In the prior art, when detecting the valve seal through a seal detection device, gas is usually filled into the valve, and the pressure change inside the valve is monitored with the help of a pressure sensor to determine whether there is leakage in the valve. Since the valve cannot be well positioned when filling gas into the valve, the valve is prone to displacement or shaking during the detection process, which is likely to cause air leakage, thus affecting the detection effect and accuracy. Therefore, in order to solve the above problems, a valve seal detection device is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a valve seal detection device to solve the problem mentioned in the above background technique that due to the inability to well position the valve when filling gas into the valve, the valve is prone to displacement or shaking during the detection process, which is likely to cause air leakage, thus affecting the detection effect and accuracy.

[0005] To achieve the above object, the present utility model provides the following technical solutions: A valve sealing detection device, including a table body, the table body includes a detection table, a support table is fixedly connected to the upper surface of the detection table, an air pump is fixedly installed on the upper surface of the detection table, a connecting pipe is fixedly connected to the surface of the air pump, one end of the connecting pipe away from the air pump is fixedly connected to an inflation head, a sealing plate is fixedly connected to the surface of the inflation head, a sealing gasket is fixedly connected to the surface of the sealing plate, and a pressure sensor is fixedly installed on the surface of the inflation head;

[0006] A positioning mechanism is arranged on the surface of the detection table, the positioning mechanism includes a telescopic cylinder, the telescopic cylinder is fixedly installed on the upper surface of the detection table, the output end of the telescopic cylinder is fixedly connected to a connecting block, a movable rod is movably connected to the surface of the connecting block, a connecting plate is movably connected to the surface of the movable rod, a first movable groove is opened inside the support table, a fixing rod is fixedly connected to the upper surface of the connecting plate, a limiting plate is fixedly connected to the top end of the fixing rod, and a second movable groove is opened inside the support table.

[0007] Preferably, the positioning mechanism further includes a connecting rod, the connecting rod is fixedly connected to the inner surface of the limiting plate, a limiting block is fixedly connected to one end of the connecting rod away from the limiting plate, the connecting rod is fixedly connected in two groups to the limiting plate, and the limiting block is correspondingly connected in four groups to the connecting rod.

[0008] Preferably, one end of the movable rod is movably connected to the connecting block through a rotating shaft, the other end of the movable rod is movably connected to the connecting plate through a rotating shaft, and the connecting plate moves inside the first movable groove.

[0009] Preferably, the fixing rod is correspondingly connected in two groups to the connecting plate, the limiting plate is correspondingly connected in two groups to the fixing rod, and the fixing rod moves inside the second movable groove.

[0010] Preferably, a moving mechanism is arranged inside the detection table, the moving mechanism includes a third movable groove, the third movable groove is opened inside the detection table, a positive and negative screw rod is movably connected inside the third movable groove, the positive and negative screw rod is movably connected to the detection table, a motor is fixedly installed on the surface of the detection table, the positive and negative screw rod is fixedly connected to the output end of the motor, a moving block is threadedly connected to the surface of the positive and negative screw rod, a fixing sleeve is fixedly connected to the top end of the moving block, the fixing sleeve is fixed on the surface of the inflation head, and a limiting rod is fixedly connected to the inner wall of the third movable groove.

[0011] Preferably, the moving block is movably connected in two groups to the positive and negative screw rod, the moving block moves inside the third movable groove and on the surface of the limiting rod, and the fixing sleeve is sleeved on the surface of the inflation head.

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

[0013] 1. By the telescoping of the telescopic cylinder, the connecting block can drive the movable rod to move, and the connecting plate can drive the fixed rod and the limiting plate to move horizontally, enabling the limiting plates to approach or move away from each other. By the approach of the limiting plates, the valve can be limited, and thus the position of the valve can be fixed, making the valve less likely to displace or shake during detection, so that the valve is more stable during detection. At the same time, through the setting of the limiting block, it can move during the movement of the limiting plate and can position the inlets and outlets at both ends of the valve, thereby better fixing the valve and making the valve more stable during detection, and better ensuring the quality and accuracy of detection.

[0014] 2. By the operation of the motor, the positive and negative screw rod can be driven to rotate, and then the moving block moves to drive the fixed sleeve and the inflation head to move accordingly, enabling the inflation head to enter both ends of the valve or withdraw from both ends of the valve, thus making the inflation of the valve more convenient and conducive to improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front sectional view of the structure of the present utility model;

[0016] Figure 2 is the side sectional view of the structure of the present utility model;

[0017] Figure 3 is of the present utility model Figure 1 the enlarged structural view of part A in;

[0018] Figure 4 is the top sectional view of the structure of the limiting plate and the limiting block of the present utility model.

[0019] In the figure: 1. Detection table; 11. Support table; 12. Air pump; 13. Connecting pipe; 14. Inflation head; 15. Sealing plate; 16. Sealing gasket; 17. Pressure sensor; 2. Telescopic cylinder; 21. Connecting block; 22. Movable rod; 23. Connecting plate; 24. First movable groove; 25. Fixed rod; 26. Limiting plate; 27. Second movable groove; 28. Connecting rod; 29. Limiting block; 3. Third movable groove; 31. Positive and negative screw rod; 32. Motor; 33. Moving block; 34. Fixed sleeve; 35. Limiting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1-4 , an embodiment provided by the utility model:

[0022] The air pump 12, pressure sensor 17, telescopic cylinder 2 and motor 32 used in the present application are products that can be directly purchased on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be described here in detail.

[0023] A valve sealing detection device comprises a platform body, the platform body comprises a detection platform 1, a support platform 11 is fixedly connected to the upper surface of the detection platform 1, an air pump 12 is fixedly installed on the upper surface of the detection platform 1, a connecting pipe 13 is fixedly connected to the surface of the air pump 12, an end of the connecting pipe 13 away from the air pump 12 is fixedly connected to an inflation head 14, a sealing plate 15 is fixedly connected to the surface of the inflation head 14, a sealing gasket 16 is fixedly connected to the surface of the sealing plate 15, a pressure sensor 17 is fixedly installed on the surface of the inflation head 14, the valve can be placed and supported by the setting of the support platform 11, the inflation head 14 can inject gas into the valve by the setting of the air pump 12, the inlet and outlet at both ends of the valve can be blocked by the function of the sealing plate 15 and the sealing gasket 16, and gas leakage can be avoided, the setting of the pressure sensor 17 can monitor the pressure in the valve, so as to judge whether the sealing of the valve is qualified;

[0024] A positioning mechanism is provided on the surface of the testing platform 1, and the positioning mechanism includes a telescopic cylinder 2, which is fixedly installed on the upper surface of the testing platform 1, and the output end of the telescopic cylinder 2 is fixedly connected with a connecting block 21, and the surface of the connecting block 21 is movably connected with a movable rod 22, and the surface of the movable rod 22 is movably connected with a connecting plate 23, and a first movable groove 24 is provided on the inner side of the support platform 11, and a fixed rod 25 is fixedly connected to the upper surface of the connecting plate 23, and the top of the fixed rod 25 is fixedly connected to a limiting plate 26, and a second movable groove 27 is provided on the inner side of the support platform 11. Through the telescopic effect of the telescopic cylinder 2, the connecting block 21 can be driven to rise and fall, and then the movable rod 22 can be moved and the connecting plate 23 can be driven to move, so that the limiting plate 26 can be moved accordingly, and the movement of the limiting plate 26 and the contact with the valve surface can locate the position of the valve, and at the same time, the valve can be fixed, so that the valve is not easy to be displaced and shaken during detection, which is beneficial to ensuring the quality of detection.

[0025] Furthermore, the positioning mechanism further includes a connecting rod 28. The connecting rod 28 is fixedly connected to the inner surface of the limiting plate 26. One end of the connecting rod 28 away from the limiting plate 26 is fixedly connected with a limiting block 29. The connecting rod 28 is fixedly connected to the limiting plate 26 in two groups, and the limiting block 29 is correspondingly connected to the connecting rod 28 in four groups. Through the arrangement of the connecting rod 28 and the limiting block 29, when the limiting plate 26 moves, the limiting block 29 can move accordingly. Furthermore, the movement of the limiting block 29 can fix the outlets at both ends of the valve, thereby making the fixation of the valve more stable and better ensuring the stability of the valve during detection.

[0026] Furthermore, one end of the movable rod 22 is movably connected to the connecting block 21 through a rotating shaft, and the other end of the movable rod 22 is movably connected to the connecting plate 23 through a rotating shaft. The connecting plate 23 moves inside the first movable groove 24. Through the opening of the first movable groove 24, the connecting plate 23 can be limited, facilitating the stable movement of the connecting plate 23 inside the first movable groove 24, thereby facilitating the stable driving of the limiting plate 26 to move accordingly by the fixing rod 25, realizing the clamping and fixing of the valve by the limiting plate 26.

[0027] Furthermore, the fixing rod 25 is correspondingly connected to the connecting plate 23 in two groups, and the limiting plate 26 is correspondingly connected to the fixing rod 25 in two groups. The fixing rod 25 moves inside the second movable groove 27. Through the arrangement of the fixing rod 25, when the connecting plate 23 moves, the fixing rod 25 can drive the limiting plate 26 to move accordingly. Furthermore, the limiting plate 26 can be attached to the surface of the valve, thereby facilitating the limiting of the valve and realizing the fixation of the valve.

[0028] Furthermore, a moving mechanism is arranged inside the detection table 1. The moving mechanism includes a third movable groove 3. The third movable groove 3 is opened inside the detection table 1. A positive and negative screw rod 31 is movably connected inside the third movable groove 3. The positive and negative screw rod 31 is movably connected to the detection table 1. A motor 32 is fixedly installed on the surface of the detection table 1. The positive and negative screw rod 31 is fixedly connected to the output end of the motor 32. A moving block 33 is threadedly connected to the surface of the positive and negative screw rod 31. The top of the moving block 33 is fixedly connected with a fixing sleeve 34. The fixing sleeve 34 is fixed on the surface of the inflation head 14. A limiting rod 35 is fixedly connected to the inner wall of the third movable groove 3. Through the rotation of the positive and negative screw rod 31, the moving block 33 can move horizontally under the action of the positive and negative screw rod 31. Furthermore, the two fixing sleeves 34 can drive the two inflation heads 14 into the inside of the valve, thereby making it more convenient to inflate the valve.

[0029] Further, the moving block 33 is in two groups and is movably connected to the positive and negative screw rod 31. The moving block 33 moves inside the third moving groove 3 and on the surface of the limiting rod 35. The fixed sleeve 34 is sleeved on the surface of the inflating head 14. Through the arrangement of the limiting rod 35, the movement of the moving block 33 can be limited, and the moving block 33 can be prevented from shifting under the action of the positive and negative screw rod 31, which is convenient for the moving block 33 and the fixed sleeve 34 to drive the inflating head 14 to move stably.

[0030] Working principle: During use, the telescopic cylinder 2 is electrically connected to an external power source. The staff starts the telescopic cylinder 2 by pressing the switch. The telescopic cylinder 2 expands and contracts, which can drive the connecting block 21 to move vertically. Then, the movable rod 22 moves through the rotating shaft, realizing the movement of the connecting plate 23 inside the first moving groove 24. The fixed rod 25 will drive the limiting plate 26 to move horizontally under the action of the connecting plate 23, realizing the movement of the fixed rod 25 inside the second moving groove 27, and realizing the mutual approach or separation of the limiting plates 26. By the mutual approach of the limiting plates 26 and making the limiting plates 26 contact the surface of the valve, the limiting of the valve can be realized. The connecting rod 28 will drive the limiting block 29 to move accordingly under the action of the limiting plate 26, and the limiting of both ends of the valve can be realized through the limiting block 29, so that the fixing of the valve can be realized.

[0031] The motor 32 is electrically connected to an external power source. The staff starts the motor 32 by pressing the switch. The motor 32 rotates to drive the positive and negative screw rod 31 to rotate. The moving block 33 is limited by the limiting rod 35 and moves inside the third moving groove 3 and on the surface of the limiting rod 35 under the action of the positive and negative screw rod 31. Then, the fixed sleeve 34 drives the inflating head 14 to move accordingly, so that the inflating head 14 can enter or withdraw from both ends of the valve.

[0032] The above is only the preferred embodiment of the present invention, and does not impose any form of limitation on the present invention; any ordinary technician in the industry can smoothly implement the present invention according to the illustrations in the specification and the above; however, any slight changes, modifications and evolutions made by those skilled in the art within the scope of the technical solution of the present invention using the technical content disclosed above are equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A valve sealing detection device, comprising a platform body, the platform body comprising a detection platform (1), the upper surface of the detection platform (1) is fixedly connected to a support platform (11), the upper surface of the detection platform (1) is fixedly installed with an air pump (12), the surface of the air pump (12) is fixedly connected to a connecting pipe (13), the end of the connecting pipe (13) away from the air pump (12) is fixedly connected to an inflation head (14), the surface of the inflation head (14) is fixedly connected to a sealing plate (15), the surface of the sealing plate (15) is fixedly connected to a sealing pad (16), and the surface of the inflation head (14) is fixedly installed with a pressure sensor (17); It is characterized in that The surface of the detection platform (1) is provided with a positioning mechanism, the positioning mechanism comprising a telescopic cylinder (2), the telescopic cylinder (2) is fixedly mounted on the upper surface of the detection platform (1), the output end of the telescopic cylinder (2) is fixedly connected to a connecting block (21), the surface of the connecting block (21) is movably connected to a movable rod (22), the surface of the movable rod (22) is movably connected to a connecting plate (23), a first movable groove (24) is provided on the inner side of the support platform (11), a fixed rod (25) is fixedly connected to the upper surface of the connecting plate (23), the top end of the fixed rod (25) is fixedly connected to a limiting plate (26), and a second movable groove (27) is provided on the inner side of the support platform (11).

2. A valve sealing detection device according to claim 1, characterized in that: The positioning mechanism further comprises a connecting rod (28), wherein the connecting rod (28) is fixedly connected to the inner surface of the limiting plate (26), and one end of the connecting rod (28) away from the limiting plate (26) is fixedly connected to the limiting block (29), the connecting rod (28) is in two groups and fixedly connected to the limiting plate (26), and the limiting blocks (29) are in four groups and correspondingly connected to the connecting rods (28).

3. A valve sealing detection device according to claim 1, characterized in that: One end of the movable rod (22) is movably connected to the connecting block (21) via a rotating shaft, and the other end of the movable rod (22) is movably connected to the connecting plate (23) via a rotating shaft, and the connecting plate (23) is movable inside the first movable groove (24).

4. A valve sealing detection device according to claim 2, characterized in that: The fixing rods (25) are in two groups and are connected to the connecting plates (23) in correspondence, the limiting plates (26) are in two groups and are connected to the fixing rods (25) in correspondence, and the fixing rods (25) are movable inside the second movable grooves (27).

5. A valve sealing detection device according to claim 1, characterized in that: A moving mechanism is arranged on the inner side of the detection platform (1), and the moving mechanism comprises a third movable groove (3), the third movable groove (3) is arranged on the inner side of the detection platform (1), a forward and reverse screw rod (31) is movably connected to the inner side of the third movable groove (3), the forward and reverse screw rod (31) and the detection platform (1) are movably connected, a motor (32) is fixedly mounted on the surface of the detection platform (1), the forward and reverse screw rod (31) and the output end of the motor (32) are fixedly connected, a moving block (33) is threadedly connected to the surface of the forward and reverse screw rod (31), a fixing sleeve (34) is fixedly connected to the top end of the moving block (33), the fixing sleeve (34) is fixed to the surface of the inflation head (14), and a limiting rod (35) is fixedly connected to the inner wall of the third movable groove (3).

6. A valve sealing detection device according to claim 5, characterized in that: The movable blocks (33) are in two groups and are movably connected to the forward and reverse screw rods (31). The movable blocks (33) move on the inner side of the third movable groove (3) and the surface of the limit rod (35). The fixed sleeve (34) is sleeved on the surface of the inflation head (14).

Images