Valve sealing performance detection machine

Abstract

The utility model discloses a valve sealing performance detection machine which comprises a detection box, the upper end face of the detection box is an opening, the inner wall of the detection box is symmetrically provided with two lifting holes, and the two lifting holes are internally provided with first threaded rods. By arranging a first valve connecting device, a second valve connecting device, clear water, a transparent glass plate, a pneumatic pump and a pressurizing pipe, when an inlet and an outlet of a valve body are sealed by the first valve connecting device and the second valve connecting device respectively, the valve body is immersed into the clear water in a detection box; then the pneumatic pump is started to enable the output end of the pneumatic pump to pressurize the inlet of the valve body through the pressurizing pipe, a worker can observe whether the valve body in clear water generates bubbles in the pressurizing process or not through the transparent glass plate, if bubbles are generated, it represents that the valve body leaks, and the sealing detection result of the valve body is more visual.

Description

Technical Field

[0001] The utility model relates to the technical field of valve detection equipment, in particular to a valve sealing detection machine. Background Art

[0002] Valves are control components in fluid delivery systems, with functions such as shutoff, regulation, flow diversion, backflow prevention, pressure stabilization, flow diversion or overflow pressure relief. Valves used in fluid control systems come in a wide variety of varieties and specifications, from the simplest shutoff valves to the various valves used in extremely complex automatic control systems.

[0003] After searching, the publication number is: CN211717711U, which discloses a valve sealing detection device. The motor drives the screw rod to rotate. The screw rod 7 drives two sealing covers to close the inlet and outlet of the valve during the rotation, achieving the effect of accurate detection of valve sealing, reducing errors in the detection process, and improving detection efficiency, solving the problem of time-consuming and labor-intensive traditional valve detection process, large errors, and increased valve production costs. However, the above-mentioned prior art uses a pressure pump to increase the pressure on the valve to achieve valve sealing detection. In the process of valve sealing detection, it is impossible to intuitively find whether the valve is leaking, and the result of valve sealing detection is not intuitive enough.

[0004] In order to solve the above problems, the utility model provides a valve sealing detection machine. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a valve sealing detection machine to solve the technical problem in the prior art that "the above-mentioned prior art uses a pressure pump to increase the pressure on the valve to realize the sealing detection of the valve, and it is impossible to intuitively find out whether the valve is leaking during the sealing detection of the valve, and the result of the valve sealing detection is not intuitive enough."

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A valve sealing detection machine comprises a detection box, the upper end surface of the detection box is an opening, and the inner wall of the detection box is symmetrically provided with two lifting holes, and No. 1 threaded rods are arranged in the two lifting holes, and cushion blocks are fixedly connected to both sides of the detection box, and the side walls of the two cushion blocks are commonly fixedly connected to a placement plate, and a No. 1 servo motor is fixedly installed on the placement plate, and the output end of the No. 1 servo motor is fixedly connected to one end of one of the No. 1 threaded rods, and a transmission groove is provided at the lower end of the detection box, and the two No. 1 threaded rods are located in the transmission groove and are respectively fixedly sleeved with a driving pulley and a driven pulley, and the driving pulley is transmission-connected to the driven pulley through a belt strip, and moving blocks are threadedly sleeved on the two No. 1 threaded rods, and the side walls of the two moving blocks are commonly fixedly connected to a mounting plate, and a No. 2 servo motor is fixedly installed on the upper end surface of the mounting plate, and the output end of the No. 2 servo motor is fixedly A first bevel gear is fixedly connected, a transverse groove is provided on the lower end surface of the mounting plate, the first bevel gear is meshedly connected with a second bevel gear, a second threaded rod is fixedly connected at the center of the second bevel gear, a movable plate is threadedly sleeved on the second threaded rod, the lower end of the movable plate is fixedly connected with a first valve connecting device, the lower end surface of the mounting plate is fixedly connected with a connecting plate, a second valve connecting device is fixedly connected on the side wall of the connecting plate, a valve body is provided between the first valve connecting device and the second valve connecting device, an air pressure pump is provided on the upper end surface of the mounting plate, a boosting pipe is fixedly connected to the output end of the air pressure pump, the other end of the boosting pipe passes through the inner wall of the first valve connecting device, the side wall of the boosting pipe is fixedly connected to the inner wall of the first valve connecting device, clean water is provided in the detection box, a mounting hole is provided on the side wall of the detection box, and a transparent glass plate is fixedly installed in the mounting hole.

[0008] As a preferred technical solution of the utility model, the two No. 1 threaded rods are both rotatably connected to the inner wall of the detection box, and the side walls of the two moving blocks are respectively slidably connected to the inner walls of the two lifting holes.

[0009] As a preferred technical solution of the utility model, a sliding plate is fixedly connected to the lower end surface of the air pressure pump, and the sliding plate is slidably connected to the upper end surface of the mounting plate.

[0010] As a preferred technical solution of the utility model, the side wall of the movable plate is slidably connected to the inner wall of the transverse groove, and the end of the second threaded rod away from the second bevel gear is rotationally connected to the inner wall of the transverse groove.

[0011] As a preferred technical solution of the present utility model, a plurality of through holes are provided on the upper end surface of the mounting plate, and the plurality of through holes are all circular holes of the same size.

[0012] As a preferred technical solution of the utility model, the upper end surfaces of the two No. 1 threaded rods are fixedly connected with top blocks.

[0013] The utility model provides a valve sealing detection machine, which has the following beneficial effects:

[0014] 1. By setting the first valve connection device, the second valve connection device, clean water, a transparent glass plate, an air pressure pump, and a boosting pipe, when the inlet and outlet of the valve body are sealed by the first valve connection device and the second valve connection device respectively, the valve body is immersed in the clean water in the detection box, and then the air pressure pump is started to increase the pressure of the inlet of the valve body through the boosting pipe at its output end. The staff can observe through the transparent glass plate whether the valve body in the clean water generates bubbles during the pressurization process. If bubbles are generated, it means that there is a leakage problem in the valve body, and the sealing test result of the valve body is more intuitive;

[0015] 2. By setting a No. 1 servo motor, a driving pulley, a driven pulley, a belt strip, a No. 1 threaded rod, a moving block, a lifting hole, and a mounting plate, when it is necessary to immerse the valve body sealed by the first valve connecting device and the second valve connecting device in the clean water in the detection box, it is only necessary to start the No. 1 servo motor so that its output end drives the No. 1 threaded rod to rotate and the other No. 1 threaded rod is rotated synchronously through the driving pulley, the belt strip, and the driven pulley. At this time, the two moving blocks move downward along the inner wall of the lifting hole and drive the mounting plate in the detection box under the rotation of the two No. 1 threaded rods. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a valve sealing detection machine proposed by the utility model;

[0017] Figure 2 This is a front structural sectional view of a valve sealing detection machine proposed by the utility model;

[0018] Figure 3 This is a side structural sectional view of a valve sealing detection machine proposed by the utility model;

[0019] Figure 4 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0020] In the figure: 1 detection box, 2 lifting hole, 3 cushion block, 4 No. 1 servo motor, 5 No. 1 threaded rod, 6 driving pulley, 7 belt strip, 8 driven pulley, 9 moving block, 10 mounting plate, 11 connecting plate, 12 second valve connecting device, 13 No. 2 servo motor, 14 transverse groove, 15 No. 1 bevel gear, 16 No. 2 bevel gear, 17 No. 2 threaded rod, 18 moving plate, 19 first valve connecting device, 20 air pressure pump, 21 booster pipe, 22 valve body, 23 clean water, 24 transparent glass plate. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation mode of the utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] Example

[0023] refer to Figure 1-4 A valve sealing tester comprises a test box 1, the upper end face of the test box 1 is an opening, and the inner wall of the test box 1 is symmetrically provided with two lifting holes 2, and a No. 1 threaded rod 5 is arranged in each of the two lifting holes 2, and both sides of the test box 1 are fixedly connected with cushion blocks 3, and the side walls of the two cushion blocks 3 are fixedly connected with a placement plate, and a No. 1 servo motor 4 is fixedly installed on the placement plate, and the output end of the No. 1 servo motor 4 is fixedly connected with one end of one of the No. 1 threaded rods 5, and a transmission groove is provided at the lower end of the test box 1, and two No. 1 threaded rods 5 are located in the transmission groove and are respectively fixedly sleeved with a driving pulley 6 and a driven pulley 8, and the driving pulley 6 is connected to the driven pulley 8 through a belt strip 7, and a moving block 9 is threadedly sleeved on the two No. 1 threaded rods 5, and a mounting plate 10 is fixedly connected to the side walls of the two moving blocks 9, and a No. 2 servo motor 13 is fixedly installed on the upper end face of the mounting plate 10, and a No. 1 bevel gear 15 is fixedly connected to the output end of the No. 2 servo motor 13, and a mounting plate 10 is fixedly installed on the upper end face of the mounting plate 10. A transverse groove 14 is provided on the lower end surface of the plate 10, a No. 1 bevel gear 15 is meshedly connected with a No. 2 bevel gear 16, a No. 2 threaded rod 17 is fixedly connected at the center of the No. 2 bevel gear 16, a movable plate 18 is threadedly sleeved on the No. 2 threaded rod 17, a first valve connecting device 19 is fixedly connected to the lower end of the movable plate 18, a connecting plate 11 is fixedly connected to the lower end surface of the mounting plate 10, a second valve connecting device 12 is fixedly connected to the side wall of the connecting plate 11, a valve body 22 is arranged between the first valve connecting device 19 and the second valve connecting device 12, an air pressure pump 20 is provided on the upper end surface of the mounting plate 10, a boosting pipe 21 is fixedly connected to the output end of the air pressure pump 20, the other end of the boosting pipe 21 passes through the inner wall of the first valve connecting device 19, and the side wall of the boosting pipe 21 is fixedly connected to the inner wall of the first valve connecting device 19, and clean water 23 is arranged in the detection box 1, a mounting hole is provided on the side wall of the detection box 1, and a transparent glass plate 24 is fixedly installed in the mounting hole.

[0024] When it is necessary to perform a sealing test on the valve body 22, the outlet of the valve body 22 is pressed against the second valve connecting device 12, and then the No. 2 servo motor 13 is started. The output end of the No. 2 servo motor 13 drives the No. 1 bevel gear 15 to rotate and drives the No. 2 threaded rod 17 to rotate in the transverse groove 14 through the No. 2 bevel gear 16, so that the moving plate 18 drives the first valve connecting device 19 to move toward the inlet of the valve body 22. When the first valve connecting device 19 is pressed against the inlet of the valve body 22, the No. 1 servo motor 4 is started. The output end of the No. 1 servo motor 4 drives the No. 1 threaded rod 5 to rotate and makes the other No. 1 threaded rod 5 rotate synchronously through the driving pulley 6, the belt strip 7, and the driven pulley 8. At this time, the two moving blocks 9 are in two one The threaded rod 5 rotates along the inner wall of the lifting hole 2 and drives the mounting plate 10 to move downward in the detection box 1. When the valve body 22 is immersed in the clean water 23 in the detection box 1, the air pressure pump 20 is started, and the output end of the air pressure pump 20 pressurizes the inlet of the valve body 22 through the boosting pipe 21. At this time, since the second valve connecting device 12 and the first valve connecting device 19 respectively seal the outlet and the inlet of the valve body 22, when the valve body 22 leaks, the staff can observe through the transparent glass plate 24 whether the valve body 22 in the clean water 23 generates bubbles during the pressurization process. If bubbles are generated, it means that there is a leakage problem in the valve body 22, and the sealing test result of the valve body 22 is more intuitive;

[0025] The two No. 1 threaded rods 5 are both rotatably connected to the inner wall of the detection box 1 , and the side walls of the two moving blocks 9 are respectively slidably connected to the inner walls of the two lifting holes 2 .

[0026] By making the two No. 1 threaded rods 5 rotatably connected to the inner wall of the detection box 1, the two No. 1 threaded rods 5 can be rotated in the detection box 1, and by making the side walls of the two moving blocks 9 slidably connected to the inner walls of the two lifting holes 2, the side walls of the two moving blocks 9 can slide along the inner walls of the two lifting holes 2 respectively;

[0027] The lower end surface of the air pressure pump 20 is fixedly connected with a sliding plate, and the sliding plate is slidably connected to the upper end surface of the mounting plate 10 .

[0028] By providing the sliding plate, the air pressure pump 20 can slide on the upper end surface of the mounting plate 10 through the booster pipe 21 connected thereto during the movement of the first valve connecting device 19, and the sliding plate can also prevent the air pressure pump 20 from being worn on the mounting plate 10;

[0029] The side wall of the movable plate 18 is slidably connected to the inner wall of the transverse groove 14 , and one end of the second threaded rod 17 away from the second bevel gear 16 is rotationally connected to the inner wall of the transverse groove 14 .

[0030] By making the side wall of the movable plate 18 slidably connected to the inner wall of the transverse groove 14, the side wall of the movable plate 18 can slide along the inner wall of the transverse groove 14, and by making the end of the second threaded rod 17 away from the second bevel gear 16 rotatably connected to the inner wall of the transverse groove 14, the end of the second threaded rod 17 away from the second bevel gear 16 can rotate on the inner wall of the transverse groove 14;

[0031] The upper end surface of the mounting plate 10 is provided with a plurality of through holes, and the plurality of through holes are all circular holes of the same size.

[0032] By opening a plurality of through holes on the upper end surface of the mounting plate 10, the air at the lower end of the mounting plate 10 can be connected to the outside through the plurality of through holes, thereby reducing the air pressure of the mounting plate 10 in the detection box 1;

[0033] Among them, the upper end surfaces of the two No. 1 threaded rods 5 are fixedly connected with top blocks.

[0034] By setting the top blocks, the two top blocks can play a role of blocking and limiting the two moving blocks 9 when they move upward on the No. 1 threaded rod 5;

[0035] Among them, the manufacturer of the air pump valve is Shenzhen Yanse Commercial Co., Ltd., and the model is ME-003;

[0036] Among them, the first valve connecting device 19 and the second valve connecting device 12 have been fully disclosed in the publication number: CN205691291U, and will not be repeated here.

[0037] The working principle of the utility model is as follows: when it is necessary to perform a sealing test on the valve body 22, the outlet of the valve body 22 is pressed against the second valve connecting device 12, and then the No. 2 servo motor 13 is started. The output end of the No. 2 servo motor 13 drives the No. 1 bevel gear 15 to rotate and drives the No. 2 threaded rod 17 to rotate in the transverse groove 14 through the No. 2 bevel gear 16, so that the movable plate 18 drives the first valve connecting device 19 to move toward the inlet of the valve body 22. When the first valve connecting device 19 is pressed against the inlet of the valve body 22, the No. 1 servo motor 4 is started, and the output end of the No. 1 servo motor 4 drives the No. 1 threaded rod 5 to rotate and makes the other No. 1 threaded rod 5 rotate synchronously through the driving pulley 6, the belt strip 7, and the driven pulley 8. At this time, the two movable Under the rotation of the two No. 1 threaded rods 5, the block 9 moves downward along the inner wall of the lifting hole 2 and drives the mounting plate 10 in the detection box 1. When the valve body 22 is immersed in the clean water 23 in the detection box 1, the air pressure pump 20 is started, and the output end of the air pressure pump 20 pressurizes the inlet of the valve body 22 through the boosting pipe 21. At this time, since the second valve connecting device 12 and the first valve connecting device 19 respectively seal the outlet and the inlet of the valve body 22, when the valve body 22 leaks, the staff can observe through the transparent glass plate 24 whether the valve body 22 in the clean water 23 generates bubbles during the pressurization process. If bubbles are generated, it means that there is a leakage problem in the valve body 22, and the sealing detection result of the valve body 22 is more intuitive.

[0038] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and utility model concept of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model.

Claims

1. A valve sealing tester, comprising a test box (1), characterized in that: The upper end surface of the detection box (1) is open, and the inner wall of the detection box (1) is symmetrically provided with two lifting holes (2), and a No. 1 threaded rod (5) is arranged in each of the two lifting holes (2). Pads (3) are fixedly connected to both sides of the detection box (1), and the side walls of the two pads (3) are commonly fixedly connected with a placement plate, and a No. 1 servo motor (4) is fixedly installed on the placement plate, and the output end of the No. 1 servo motor (4) is fixedly connected to one end of one of the No. 1 threaded rods (5). The lower end of the detection box (1) is provided with a transmission groove, and the two No. 1 threaded rods (5) are fixedly connected to each other. The threaded rod (5) is located in the transmission groove and is respectively fixedly sleeved with a driving pulley (6) and a driven pulley (8). The driving pulley (6) is connected to the driven pulley (8) through a belt strip (7). The two first threaded rods (5) are both threadedly sleeved with a moving block (9). The side walls of the two moving blocks (9) are commonly fixedly connected with a mounting plate (10). The upper end surface of the mounting plate (10) is fixedly installed with a second servo motor (13). The output end of the second servo motor (13) is fixedly connected with a first bevel gear (15). The lower end surface of the mounting plate (10) is opened. A transverse groove (14) is provided, the first bevel gear (15) is meshedly connected with a second bevel gear (16), a second threaded rod (17) is fixedly connected at the center of the second bevel gear (16), a movable plate (18) is threadedly sleeved on the second threaded rod (17), a first valve connecting device (19) is fixedly connected at the lower end of the movable plate (18), a connecting plate (11) is fixedly connected to the lower end surface of the mounting plate (10), a second valve connecting device (12) is fixedly connected to the side wall of the connecting plate (11), the first valve connecting device (19) and the second valve connecting device (12) are fixedly connected to each other. A valve body (22) is arranged between the valve connecting devices (12), an air pressure pump (20) is arranged on the upper end surface of the mounting plate (10), an output end of the air pressure pump (20) is fixedly connected to a boosting pipe (21), the other end of the boosting pipe (21) passes through the inner wall of the first valve connecting device (19), the side wall of the boosting pipe (21) is fixedly connected to the inner wall of the first valve connecting device (19), clean water (23) is arranged in the detection box (1), a mounting hole is opened on the side wall of the detection box (1), and a transparent glass plate (24) is fixedly installed in the mounting hole.

2. A valve sealing tester according to claim 1, characterized in that: The two No. 1 threaded rods (5) are both rotatably connected to the inner wall of the detection box (1), and the side walls of the two moving blocks (9) are respectively slidably connected to the inner walls of the two lifting holes (2).

3. A valve sealing tester according to claim 1, characterized in that: The lower end surface of the air pressure pump (20) is fixedly connected to a sliding plate, and the sliding plate is slidably connected to the upper end surface of the mounting plate (10).

4. A valve sealing tester according to claim 1, characterized in that: The side wall of the movable plate (18) is slidably connected to the inner wall of the transverse groove (14), and the end of the second threaded rod (17) away from the second bevel gear (16) is rotationally connected to the inner wall of the transverse groove (14).

5. A valve sealing tester according to claim 1, characterized in that: The upper end surface of the mounting plate (10) is provided with a plurality of through holes, and the plurality of through holes are all circular holes of the same size.

6. A valve sealing tester according to claim 1, characterized in that: The upper end surfaces of the two No. 1 threaded rods (5) are both fixedly connected with a top block.

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