Device for detecting sealing performance of valve body of regulating valve

Abstract

The invention relates to the technical field of valve body sealing performance detection, and discloses adjusting valve body sealing performance detection equipment, which comprises a workbench, and is characterized in that the upper surface of the workbench is fixedly connected with an opening sealing box; a first sealing and clamping assembly and a second sealing and clamping assembly which are used for sealing and clamping the two ends of the valve body are arranged on the upper surface of the workbench and located on the two sides of the opening sealing box correspondingly, and a driving assembly which enables the first sealing and clamping assembly and the second sealing and clamping assembly to move synchronously is arranged on the lower surface of the workbench. According to the invention, three openings of the valve body can be respectively sealed and clamped, three interfaces can be effectively sealed, a complete sealed cavity is formed to facilitate pressure testing, and the valve body pressure testing device can flexibly adapt to valve bodies of different models and specifications and is convenient to use. And the axes of the two ends of the valve body can be kept parallel to the axis of the first sealing clamping assembly and the axis of the second sealing clamping assembly, the sealing face and the contact face of the valve body are evenly pressed, and the sealing reliability is remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of valve body sealing detection, in particular to a regulating valve body sealing detection equipment. BACKGROUND

[0002] As the core component of the industrial fluid control system, the regulating valve is widely used in many key fields such as petroleum chemical industry, power, pharmaceutical, water treatment, etc. Its core function is to accurately regulate the flow, pressure or temperature of the medium in the pipeline.

[0003] The valve body, as the main pressure-bearing component and fluid passage of the regulating valve, its sealing performance reliability is directly related to the safety, environmental protection, efficiency and operating cost of the whole process system.

[0004] Through retrieval, the patent with the publication number CN214583865U discloses a butterfly valve body sealing detection device, which can simulate the working state of the valve at high temperature, and has fast detection speed, but still has the following problems: 1. When fixing the valve body, only its two ends are clamped and sealed, and the other port is manually sealed by using a plugging head and a clamp. The plugging head and the clamp cannot be installed in place, and if they are not installed in place, the sealing performance will be affected, and the subsequent test results will also be affected. Therefore, how to synchronously and stably seal and clamp the multiple openings of the valve body is an urgent problem to be solved at present; 2. When placing the valve body, if you want the two ends to be uniformly pressed during clamping and sealing, you need to place the valve door in alignment with the sealing clamps at both ends. However, during the clamping process, manual adjustment is required multiple times, which will consume a lot of installation time and reduce the efficiency of valve installation. Therefore, how to quickly install the valve door so that the two ends are uniformly pressed during clamping is also an urgent problem to be solved at present; 3. When detecting valve leakage, the leakage position needs to be determined for subsequent repair work. However, when detecting leakage, manual sensing is generally used to determine the leakage position. If the leakage position is small, the human body is difficult to perceive. Therefore, how to accurately and effectively find out the leakage position and mark it is also an urgent problem to be solved at present. SUMMARY

[0005] In view of the defects of the prior art, the present application provides a regulating valve body sealing detection equipment, mainly to solve the problem that when the valve body is fixed, only its two ends are clamped and sealed, and the other port is manually sealed by using a plugging head and a clamp, which cannot guarantee that the plugging head and the clamp are manually installed in place, and if they are not installed in place, the sealing performance will be affected, and the subsequent test results will also be affected, and when the valve body is placed, if the two end positions are to be uniformly pressed during clamping and sealing, the valve needs to be placed in alignment with the sealing clamps at its two ends, but during the clamping process, manual adjustment needs to be performed multiple times, which consumes a lot of installation time and reduces the efficiency of valve installation, and when the valve leaks, the leakage position needs to be determined for subsequent repair work, but when the leakage is detected, manual perception is generally used to determine the leakage position, and if the leakage position is small, the human body is difficult to perceive.

[0006] To achieve the above object, the present application provides the following technical scheme: A regulating valve body sealing detection equipment, comprising a workbench, the upper surface of the workbench is fixedly connected with an open sealing box, the upper surface of the workbench and located on both sides of the open sealing box are respectively provided with sealing clamping assemblies one and two for clamping and sealing the two ends of the valve body, the lower surface of the workbench is provided with a driving assembly for synchronously moving the sealing clamping assemblies one and two, the upper surface of the workbench and located outside the open sealing box is fixedly connected with a frame, the upper portion of the frame is provided with a horizontal positioning assembly for limiting the direction of the two ends of the valve body, the lower portion of the frame is provided with a pressing assembly for pressing the valve body, the lower portion of the workbench is provided with a gas supply assembly for supplying gas, the lower portion of the workbench is provided with a water inlet and outlet assembly for water inlet and outlet of the open sealing box, the upper surface of the workbench and located on one side of the sealing clamping assembly two is provided with a measuring assembly for detecting the sealing performance of the valve body, and the open sealing box is provided with a bubble positioning assembly for positioning the exposed bubbles.

[0007] Further, the sealing clamping assembly one comprises a sliding rod penetratingly and slidingly connected to one side of the open sealing box, a sealing clamp one is fixedly connected to the end portion of the sliding rod located in the open sealing box, a guide seat is fixedly connected to the upper surface of the workbench and used in cooperation with the sliding rod, sliding openings are formed in the upper surface of the workbench and located on both sides of the open sealing box, two work-shaped sliding blocks are slidingly connected in the sliding openings, the upper surface of one of the work-shaped sliding blocks is fixedly connected with a connecting frame one, and the top end of the connecting frame one is fixedly connected with one end of the sliding rod.

[0008] On the basis of the foregoing scheme, the sealing clamping assembly two comprises a sliding pipe connected to the other side of the open sealing box, one end of the sliding pipe is connected with a sleeve, and the other end of the sliding pipe is fixedly connected with a sealing clamp two in the open sealing box.

[0009] As a further scheme of the present application, the driving assembly comprises two fixed plates fixedly connected to the inner wall of the top of the workbench, a two-way screw rod one is rotatably connected between the two fixed plates through a bearing, two connecting seats are symmetrically and threadedly connected to the two-way screw rod one, and the top ends of the two connecting seats are fixedly connected to the lower surfaces of the two work-type sliding blocks, and one side of one of the fixed plates is fixedly connected with a driving motor one for enabling the two-way screw rod one to be positively and reversely rotated along the axial direction.

[0010] Further, the horizontal positioning assembly comprises an electric push rod one fixedly connected to the outer wall of the top of the frame, a cross-shaped frame is fixedly connected to the output end of the electric push rod one, a circular rod is fixedly connected to each of the four corners of the lower surface of the cross-shaped frame, the bottom ends of the plurality of circular rods are slidably connected with a plurality of cylinders penetrating through the top inner wall of the frame, a tension spring is fixedly connected between the top end of each of the plurality of cylinders and the circumferential outer wall of the corresponding circular rod, a support frame is fixedly connected to the bottom ends of the plurality of cylinders, two guide rods are fixedly connected between the inner walls on the two sides of the support frame, two inclined frames are symmetrically and slidably connected to the two guide rods, a positioning clamp frame is fixedly connected to the opposite sides of the bottom ends of the two inclined frames, a two-way screw rod two is rotatably connected between the inner walls on the two sides of the middle position of the support frame through a bearing, and a driving motor two is fixedly connected to the outer wall of one side of the support frame for enabling the two-way screw rod two to be positively and reversely rotated along the axial direction.

[0011] On the basis of the foregoing scheme, the pressing assembly comprises an electric push rod two fixedly connected to the top inner wall of the frame, and a sliding frame is fixedly connected to the output end of the electric push rod two, and a pressing block is fixedly connected to the bottom end of the sliding frame penetrating through the support frame.

[0012] As a further scheme of the present application, the gas supply assembly comprises a bearing seat fixedly connected to the inner wall of the bottom of the open sealing box, a connecting pipe frame is fixedly connected to the top inner wall of the workbench, an air inlet hole is formed in the bearing seat and used in cooperation with the connecting pipe frame, an air pump is fixedly connected to the frame body of the bottom of the workbench and used in cooperation with the connecting pipe frame, and a sealing gasket is attached to the side in contact with the valve body of the bearing seat, the sealing clamp one and the sealing clamp two.

[0013] Further, the water inlet and outlet assembly comprises a water storage tank fixedly connected to the bottom frame of the workbench, one side of the water storage tank is fixedly connected to a water pump in communication with the inside of the water storage tank, the water pump is provided with a water inlet pipe frame used in cooperation therewith, the top end of the water inlet pipe frame extends into the opening sealing box near the top end, the opening sealing box is provided with a water outlet pipe frame in communication with the side near the bottom of the opening sealing box and the side near the top of the water storage tank, and the water outlet pipe frame is provided with a water stop valve.

[0014] On the basis of the foregoing scheme, the measuring assembly comprises a sealing box fixedly connected to one end of the sleeve and in communication therewith, the sealing box is provided with a pressure monitoring table for detecting the internal pressure thereof, two symmetrical supports are fixedly connected between the bottom outer wall of the sealing box and the upper surface of the workbench, the other side of the sealing box is fixedly connected to an exhaust pipe in communication with the inside of the sealing box, and the exhaust pipe is provided with a valve.

[0015] As a further scheme of the present application, the bubble positioning assembly comprises two symmetrical mounting frames fixedly connected to the opening sealing box, a camera is fixedly connected to each end of the upper surface of each mounting frame, an annular T groove is formed in the circumferential outer wall of the sealing clamp one and the sealing clamp two, a T-shaped sliding block is slidably connected to each annular T groove, and a pointer is fixedly connected to each T-shaped sliding block.

[0016] Compared with the prior art, the present application provides a regulating valve body sealing detection equipment, which has the following beneficial effects: 1、The sealing clamping assembly one, the sealing clamping assembly two, the bearing seat and the pressing assembly are used in cooperation to seal and clamp the three openings of the valve body respectively, so that the three interfaces are effectively sealed to form a complete sealing cavity for pressure testing, and different models and specifications of valve bodies can be flexibly adapted.

[0017] 2、The horizontal positioning assembly is provided, so that the two end shafts of the valve body are parallel to the axes of the sealing clamping assembly one and the sealing clamping assembly two, the sealing surface and the valve body contact surface are uniformly pressed, the sealing reliability is significantly improved, the valve body angle and position do not need to be repeatedly adjusted, the time for installing and fixing the valve body is effectively saved, and the installation efficiency is effectively improved.

[0018] 3、The water inlet and outlet assembly is provided, so that when it is necessary to determine the air leakage position of the valve body, water can be injected into the opening sealing box through the water inlet and outlet assembly, and the air leakage position can be determined by observing the bubbles, and the structure is simple and convenient to use.

[0019] 4、The bubble positioning assembly is provided, the position where the bubbles are exposed can be determined through the cooperation of the camera and the pointer therein, the staff can quickly and accurately find out the air leakage position and mark it after draining water.

[0020] 5、The present application through the exhaust pipe and valve provided on one side of the sealed box, can slowly discharge the high pressure gas in the box after the detection is completed by opening the valve, avoid the problem of sudden release of high pressure gas in the valve body when it is directly disassembled. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The front side perspective structural schematic view of the adjusting valve body sealing detection equipment according to the present application; Figure 2 The rear side perspective structural schematic view of the adjusting valve body sealing detection equipment according to the present application; Figure 3 The rear side perspective structural schematic view of the adjusting valve body sealing detection equipment according to the present application; Figure 1 The partial enlarged structural schematic view of the adjusting valve body sealing detection equipment according to the present application; Figure 4 The enlarged structural schematic view of the sealing clamping assembly one of the adjusting valve body sealing detection equipment according to the present application; Figure 5 The enlarged structural schematic view of the sealing clamping assembly two of the adjusting valve body sealing detection equipment according to the present application; Figure 6 The air supply assembly structural schematic view of the adjusting valve body sealing detection equipment according to the present application; Figure 7 The frame structural schematic view of the adjusting valve body sealing detection equipment according to the present application; Figure 8 The horizontal positioning assembly structural schematic view of the adjusting valve body sealing detection equipment according to the present application; Figure 9 The bottom structural schematic view of the adjusting valve body sealing detection equipment according to the present application; Figure 8 Figure 10 The partial enlarged structural schematic view of the adjusting valve body sealing detection equipment according to the present application; Figure 9 Figure 11 The water inlet and outlet assembly structural schematic view of the adjusting valve body sealing detection equipment according to the present application; Figure 12 The air bubble positioning assembly enlarged structural schematic view of the adjusting valve body sealing detection equipment according to the present application.

[0022] ​​In the figure: 1, workbench; 2, open sealing box; 3, sealing clamping assembly one; 301, sliding rod; 302, guide seat; 303, sealing clamp one; 304, sliding opening; 305, I-shaped sliding block; 306, connecting frame one; 4, sealing clamping assembly two; 401, sliding pipe; 402, sleeve; 403, sealing clamp two; 404, connecting frame two; 405, air hole; 5, driving assembly; 501, fixed plate; 502, bidirectional screw rod one; 503, connecting seat; 504, driving motor one; 6, frame; 7, horizontal positioning assembly; 701, electric push rod one; 702, cross-shaped frame; 703, round rod; 7031, cylinder; 7032, tension spring; 704, support frame; 705, guide rod; 706, inclined frame; 707, positioning clamp frame; 708, bidirectional screw rod two; 709, driving motor two; 8, pressing assembly; 801, electric push rod two; 802, sliding frame; 803, pressing block; 9, gas supply assembly; 901, bearing seat; 902, sealing gasket; 903, air inlet hole; 904, connecting pipe frame; 905, air pump; 10, water inlet and outlet assembly; 1001, water storage tank; 1002, water pump; 1003, water inlet pipe frame; 1004, water outlet pipe frame; 11, measuring assembly; 1101, sealing box; 1102, pressure monitoring meter; 1103, support; 1104, air outlet pipe; 1105, valve; 12, bubble positioning assembly; 1201, mounting frame; 1202, camera; 1203, annular T-shaped groove; 1204, T-shaped sliding block; 1205, pointer. DETAILED DESCRIPTION

[0023] In order to make the objects, technical solutions and advantages of the present application clearer, the following further describes the present application with reference to the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0024] The numbers of components in the present application, such as “first”, “second”, etc., are only used to distinguish the described objects and do not have any sequence or technical meaning. The “connection” and “coupling” in the present application include direct and indirect connection (coupling) unless otherwise specified. In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, “counterclockwise”, etc. are based on the orientations or positional relationships shown in the drawings and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as limiting the present application in that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation.

[0025] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or just means that the first feature is higher in horizontal height than the second feature. The first feature is "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or just means that the first feature is lower in horizontal height than the second feature.

[0026] Referring to Figures 1-12 As shown in the figure, a regulating valve body sealing detection device, including a workbench 1, the upper surface of the workbench 1 is fixedly connected with an open seal box 2 through bolts, the upper surface of the workbench 1 and located on both sides of the open seal box 2 are respectively provided with sealing and clamping assembly one 3 and sealing and clamping assembly two 4 for sealing and clamping the two ends of the valve body, the lower surface of the workbench 1 is provided with a drive assembly 5 for synchronous movement of the sealing and clamping assembly one 3 and the sealing and clamping assembly two 4, the upper surface of the workbench 1 and located outside the open seal box 2 is fixedly connected with a frame 6 through bolts, the frame 6 is provided with a horizontal positioning assembly 7 above for limiting the direction of the two ends of the valve body, the frame 6 is provided with a pressing assembly 8 below for pressing the valve body, the workbench 1 is provided with a gas supply assembly 9 below for inputting gas, the workbench 1 is provided with a water inlet and outlet assembly 10 below for water inlet and outlet of the open seal box 2, the upper surface of the workbench 1 and located on one side of the sealing and clamping assembly two 4 is provided with a measuring assembly 11 for detecting the sealing of the valve body, the open seal box 2 is provided with a bubble positioning assembly 12 for positioning the exposed bubbles.

[0027] Specifically, when detecting the sealing of the valve body, first place the valve body on the gas supply assembly 9, then adjust the position of the valve body through the horizontal positioning assembly 7, so that the two ends of the valve body are respectively aligned with the sealing and clamping assembly one 3 and the sealing and clamping assembly two 4, then fix the up and down positions of the valve body through the pressing assembly 8, after the up and down positions are fixed, drive the sealing and clamping assembly one 3 and the sealing and clamping assembly two 4 to move synchronously through the drive assembly 5, clamp and seal the two ends of the valve body, then fill the valve body with gas through the gas supply assembly 9, detect whether the valve body leaks through the measuring assembly 11, if it leaks, fill the open seal box 2 with water through the water inlet and outlet assembly 10 until the water is above the top of the valve body, then observe the leakage position and mark the leakage position through the bubble positioning assembly 12.

[0028] In order to solve the technical problem of sealing and clamping the two ends of the valve body, the sealing and clamping assembly one 3 comprises a sliding rod 301 slidably connected to one side of the open sealing box 2, the end of the sliding rod 301 in the open sealing box 2 is fixedly connected with a sealing clamp one 303 through bolts, the upper surface of the workbench 1 is fixedly connected with a guide seat 302 used in cooperation with the sliding rod 301 through bolts, the upper surface of the workbench 1 and located on both sides of the open sealing box 2 are provided with sliding openings 304, two sliding openings 304 are slidably connected with two I-shaped sliding blocks 305, the upper surface of one of the two I-shaped sliding blocks 305 is fixedly connected with a connecting frame one 306, and the top end of the connecting frame one 306 is fixed with one end of the sliding rod 301.

[0029] Specifically, while one of the two I-shaped sliding blocks 305 slides, the connecting frame one 306 drives the sliding rod 301 to slide along one side of the open sealing box 2, so that the sealing clamp one 303 at one end of the sliding rod 301 moves towards the valve body.

[0030] Further, the sealing and clamping assembly two 4 comprises a sliding pipe 401 slidably connected to the other side of the open sealing box 2, one end of the sliding pipe 401 is slidably connected with a sleeve pipe 402, one end of the sliding pipe 401 in the open sealing box 2 is fixedly connected with a sealing clamp two 403 through bolts, the connecting frame two 404 is fixedly connected to the circumferential outer wall of the sliding pipe 401 through bolts, and the bottom end of the connecting frame two 404 is fixed with the upper surface of the other I-shaped sliding block 305, the side of the sealing clamp two 403 in contact with the valve body is provided with an air hole 405 used in cooperation with the sliding pipe 401.

[0031] Specifically, while the other I-shaped sliding block 305 slides, the connecting frame two 404 drives the sliding pipe 401 to slide along one side of the open sealing box 2, and the sealing clamp two 403 at one end of the sliding pipe 401 also moves towards the valve body while the sliding pipe 401 slides, and the sealing clamp two 403 and the sealing clamp one 303 move synchronously to seal and clamp the two ends of the valve body.

[0032] In order to solve the technical problem of synchronous movement of the two clamps at the two ends of the valve body, the driving assembly 5 comprises two fixed plates 501 fixedly connected to the top inner wall of the workbench 1 symmetrically, a bidirectional screw rod one 502 rotatably connected between the two fixed plates 501 through bearings, two connecting seats 503 threadedly connected to the bidirectional screw rod one 502 symmetrically, and the top ends of the two connecting seats 503 are fixed with the lower surfaces of the two I-shaped sliding blocks 305 respectively, and one side of one of the two fixed plates 501 is fixedly connected with a driving motor one 504 for reversing the bidirectional screw rod one 502 along the axial direction.

[0033] Specifically, after the valve body is fixed in the upper and lower positions, the driving motor 504 is started to drive the bidirectional screw rod 502 to rotate, which in turn drives the two connecting seats 503 symmetrically connected by threads on the bidirectional screw rod 502 to move closer to each other, and the two connecting seats 503 move closer to each other, which in turn drives the two work-type sliding blocks 305 fixed thereto to slide along the sliding grooves 304.

[0034] In order to solve the technical problem of making the two ends of the valve body open to the two clamping assemblies during clamping and fixing of the valve body, the horizontal positioning assembly 7 comprises an electric push rod 701 fixedly connected to the top outer wall of the frame 6 by bolts, a cross-shaped frame 702 fixedly connected to the output end of the electric push rod 701 by bolts, a circular rod 703 fixedly connected to the lower surface of the cross-shaped frame 702 at four corners by bolts, a plurality of circular rods 703 having a cylindrical rod 7031 slidably connected to the top inner wall of the frame 6 at the bottom end, a pull spring 7032 welded between the top end of the cylindrical rod 7031 and the circumferential outer wall of the corresponding circular rod 703, a support frame 704 fixedly connected to the bottom end of the plurality of cylindrical rods 7031 by bolts, two symmetrical guide rods 705 fixedly connected between the inner walls of the two sides of the support frame 704 by bolts, two symmetrical inclined frames 706 slidably connected to the two guide rods 705, a positioning clamp frame 707 fixedly connected to the opposite sides of the bottom ends of the two inclined frames 706 by bolts, and a bidirectional screw rod 708 rotatably connected between the inner walls of the two sides of the middle position of the support frame 704 by a bearing, and a driving motor 709 fixedly connected to one side outer wall of the support frame 704 by bolts to make the bidirectional screw rod 708 rotate in the axial direction.

[0035] Specifically, after the valve body is placed, the electric push rod 701 is started to retract, which in turn drives the plurality of circular rods 703 to slide downward through the cross-shaped frame 702, so as to drive the positioning clamp frame 707 on the inclined frame 706 to move downward through the support frame 704 at the bottom, until the positioning clamp frame 707 can slightly clamp the valve body, then the electric push rod 701 is turned off, and the driving motor 709 is started to rotate in the axial direction to drive the bidirectional screw rod 708 to rotate, which in turn drives the two symmetrical inclined frames 706 above it to move towards each other at the same time, so as to make the positioning clamp frames 707 on them close to each other to clamp the valve body, slightly lifting it, and at the same time making the two ends of the valve body respectively face the sealing clamping assembly 3 and the sealing clamping assembly 4.

[0036] The two ends of the valve body are parallel to the axes of the sealing clamping assembly 3 and the sealing clamping assembly 4, the sealing surface and the valve body contact surface are uniformly pressed, the sealing reliability is significantly improved, the valve body angle and position do not need to be repeatedly adjusted, the time for installing and fixing the valve body is saved, the installation efficiency is effectively improved.

[0037] In order to solve the technical problem of the fixed position of the valve body, the compression assembly 8 is adopted, which comprises the electric push rod two 801 fixedly connected to the inner wall of the top of the frame 6 through bolts, and the output end of the electric push rod two 801 is fixedly connected with a sliding rack 802 through bolts, and the bottom end of the sliding rack 802 passes through the support frame 704 and is fixedly connected with a pressing block 803 through bolts.

[0038] Specifically, the electric push rod two 801 is started to extend and push the sliding rack 802 to slide downward along the support frame 704, and at the same time, the sliding rack 802 pushes the pressing block 803 below it to move downward, so that the bottom of the valve body is tightly attached to the bearing seat 901, and the position of the valve body is fixed. Since there is a gap between the valve body and the bearing seat 901, the cylinder 7031 will move slightly downward along the round rod 703 while the valve body is pushed to move downward, and the tension spring 7032 will be elongated under stress.

[0039] Further, after the clamping and fixing of the two ends of the valve body are completed, the drive motor two 709 is started to rotate reversely to make the bidirectional screw rod two 708 rotate reversely, and at the same time, the positioning clamp frame 707 is driven by the inclined frame 706 to move away from each other, and when it is separated from the valve body, the drive motor two 709 is turned off, and the electric push rod one 701 is started to elongate to make the positioning clamp frame 707 move upward, thereby facilitating subsequent detection.

[0040] Through the cooperation of the sealing and clamping assembly one 3, the sealing and clamping assembly two 4, the bearing seat 901 and the compression assembly 8, the three openings of the valve body are respectively sealed and clamped, so that the three interfaces are effectively sealed to form a complete sealed cavity for pressure test, and different models and specifications of valve bodies can be flexibly adapted.

[0041] In order to solve the technical problem of filling gas into the valve body to increase the internal pressure, the gas supply assembly 9 is adopted, which comprises the bearing seat 901 fixedly connected to the inner wall of the bottom of the opening sealing box 2 through bolts, the connecting pipe frame 904 fixedly connected to the inner wall of the top of the workbench 1 through bolts, the air inlet hole 903 formed in the bearing seat 901 and cooperated with the connecting pipe frame 904, the air pump 905 (model D40 micro pump) fixedly connected to the frame body at the bottom of the workbench 1 through bolts and cooperated with the connecting pipe frame 904, and the sealing gasket 902 bonded to the contact side of the valve body, the sealing gasket 902 being preferably a rubber pad.

[0042] When detecting the sealing performance of the valve body, the valve body is first placed upside down on the bearing seat 901, so as to present a T shape.

[0043] After the multi-surface fixation of the valve body is completed, the air pump 905 is started to fill air into the valve body through the connecting pipe frame 904 and the air inlet hole 903 on the bearing seat 901 to form a sealed space in the valve body, the sliding pipe 401, the sleeve pipe 402 and the sealed box 1101. In order to solve the technical problem of how to see if the valve body leaks, the measuring assembly 11 is adopted, which comprises a sealed box 1101 fixedly connected to one end of the sleeve pipe 402 and communicated with the sleeve pipe 402, a pressure monitoring table 1102 for detecting the internal air pressure of the sealed box 1101 is arranged on the sealed box 1101, the pressure monitoring table 1102 is of Y-150 type, two symmetrical supports 1103 are fixedly connected between the bottom outer wall of the sealed box 1101 and the upper surface of the workbench 1 by bolts, an exhaust pipe 1104 communicated with the inside of the sealed box 1101 is welded to the other side of the sealed box 1101, and a valve 1105 is arranged on the exhaust pipe 1104.

[0044] Specifically, when the value on the pressure monitoring table 1102 reaches a specified value, the air pump 905 is closed, the change of the value on the pressure monitoring table 1102 is observed, and if the pointer 1205 on the pressure monitoring table 1102 does not change after a period of time, the valve body is qualified, if the pointer 1205 decreases, the valve body is unqualified, the qualified valve body can be directly removed, and the unqualified valve body needs to be further determined for the position of air leakage.

[0045] The exhaust pipe 1104 and the valve 1105 can slowly discharge the high-pressure gas in the inside after the detection is completed by opening the valve 1105, so as to avoid the problem that the high-pressure gas in the inside is suddenly released when the valve body is directly disassembled, and the safety hidden danger exists.

[0046] In order to solve the technical problem of conveniently observing the position of air leakage, the water inlet and outlet assembly 10 is adopted, which comprises a water storage tank 1001 fixedly connected to the bottom frame of the workbench 1, a water pump 1002 communicated with the inside of the water storage tank 1001 is fixedly connected to one side of the water storage tank 1001 close to the bottom position by bolts, the water pump 1002 is of ISW horizontal clean water pump, a water inlet pipe frame 1003 used in cooperation with the water pump 1002 is arranged on the water pump 1002, the top end of the water inlet pipe frame 1003 extends into one side of the open sealed box 2 close to the top end position, a water outlet pipe frame 1004 communicated with the same side of the open sealed box 2 close to the bottom position and the same side of the water storage tank 1001 close to the top position is arranged, and a water stop valve is arranged on the water outlet pipe frame 1004.

[0047] Specifically, when the position of air leakage of the unqualified valve body needs to be determined, the water pump 1002 is first started to pump water from the water storage tank 1001 into the open sealed box 2, and the water in the inside can stop flowing when the water in the inside of the open sealed box 2 is higher than the top of the valve body, then the air is slowly filled into the valve body, and the position where the bubbles are exposed is observed.

[0048] When it is necessary to determine the air leakage position of the valve body, water is injected into the opening sealing box 2 through the water inlet and outlet assembly 10, and the air leakage position can be determined by observing the bubbles, which is simple in structure and convenient to use.

[0049] In order to solve the technical problem of determining the air leakage position of the valve body, the bubble positioning assembly 12 is adopted, which comprises two mounting racks 1201 symmetrically fixed on the opening sealing box 2 by bolts, a camera 1202 fixed on the upper surface of each mounting rack 1201 at both ends by bolts, a circular T groove 1203 formed in the circumferential outer wall of the sealing clamp one 303 and the sealing clamp two 403, a T-shaped sliding block 1204 slidably connected in the T groove 1203, and a pointer 1205 fixed on the T-shaped sliding block 1204 by bolts.

[0050] Specifically, while the air leakage position is photographed by the camera 1202, the T-shaped sliding block 1204 is rotated and slid along the T groove 1203, so that the pointer 1205 on the surface of the T-shaped sliding block 1204 is moved, and the air leakage position of the valve body can be determined when the pointer 1205 points to the air leakage position.

[0051] Through the cooperation of the camera 1202 and the pointer 1205, the position of the bubble exposed can be determined, and the air leakage position can be quickly and accurately found out and marked by the staff after draining.

[0052] It should be noted that the inner wall of the threaded hole of the connecting seat 503 and the support frame 704 is axially provided with an annular groove, and a nylon 66 damping ring with a Shore hardness of 85A is embedded in the groove, and the continuous axial compression force generated by the elastic deformation of the nylon 66 damping ring is in interference fit with the surface of the bidirectional screw rod one 502 and the bidirectional screw rod two 708 to form a spiral angle of 15°-20°, and when the threaded pair bears axial vibration load, the nylon insert can produce an elastic compression amount of 0.3mm, so that the friction coefficient between the threaded contact surfaces is increased from 0.15 to 0.68 (according to the ASTM D1894 standard test), and the loosening displacement caused by the rebound of the thread is effectively inhibited.

[0053] It should be noted that the electric push rod one 701, the electric push rod two 801, the drive motor one 504, the drive motor two 709, the air pump 905, the water pump 1002 and the like are prior art, and a person skilled in the art can set them according to actual needs, which will not be described here.

[0054] The application in use is divided into the following steps: S1: When testing the sealing of the valve body, first, the valve body is placed upside down on the supporting seat 901 so that it presents a T shape. After the valve body is placed, the electric push rod 1 701 is started to retract and then the multiple round rods 703 are driven to slide downward through the cross frame 702, thereby driving the positioning clamping frame 707 on the oblique frame 706 to move downward through the support frame 704 at its bottom until the positioning clamping frame 707 can just slightly clamp the valve body. After the positioning clamping frame 707 moves to the specified position, the electric push rod 1 701 is closed, and the driving motor 2 709 is started to rotate along the axial direction to drive the bidirectional screw rod 2 708 to rotate. When the bidirectional screw rod 2 708 rotates, it will drive the two symmetrical oblique frames 706 thereon to move synchronously in the direction of approaching each other, so that the positioning clamping frames 707 thereon are close to each other to clamp the valve body and lift it slightly. At the same time, the two ends of the valve body are respectively facing the sealing clamping component 1 3 and the sealing clamping component 2 4; S2: Then the second electric push rod 801 is started to extend and push the slide 802 to slide downward along the support frame 704. As the slide 802 slides downward, it pushes the pressing block 803 below it to move downward so that the bottom of the valve body is tightly attached to the bearing seat 901, and the upper and lower positions of the valve body are fixed. Due to the gap between the valve body and the bearing seat 901, the cylinder 7031 moves slightly downward along the round rod 703 when the valve body is pushed downward, and the tension spring 7032 is stretched under the force; S3: After the valve body is fixed in the upper and lower positions, the driving motor 1 504 is started to drive the bidirectional screw rod 1 502 to rotate. As the bidirectional screw rod 1 502 rotates, it drives the two symmetrical threaded connection seats 503 on it to approach each other. As the two connection seats 503 approach each other, they drive the I-shaped sliders 305 fixed to them to slide along the sliding opening 304. S4: When one of the I-shaped sliders 305 slides, it drives the slide rod 301 to slide along one side of the opening sealing box 2 through the connecting frame 1 306, so that the sealing fixture 1 303 at one end thereof moves toward the direction close to the valve body; S5: As the other I-shaped slider 305 slides, the second connecting frame 404 on it drives the sliding tube 401 to slide along one side of the open sealing box 2. As the sliding tube 401 slides, the second sealing clamp 403 on one end of the sliding tube also moves toward the valve body. The second sealing clamp 403 and the first sealing clamp 303 move synchronously to seal and clamp the two ends of the valve body. S6: After the clamping and fixing of both ends of the valve body are completed, the driving motor two 709 is started to rotate reversely to make the bidirectional screw rod two 708 rotate reversely, and the positioning clamp frame 707 is driven to move away from each other by the inclined frame 706 when the bidirectional screw rod two 708 rotates reversely, and when it is separated from the valve body, the driving motor two 709 is closed, and the electric push rod one 701 is started to extend to make the positioning clamp frame 707 move upward, so that subsequent detection is facilitated; S7: Then the air pump 905 is started to fill air into the valve body through the connecting pipe frame 904 and the air inlet hole 903 on the bearing seat 901 to form a sealed space in the valve body, the sliding pipe 401, the sleeve pipe 402 and the sealed box 1101, and when the value on the pressure monitoring table 1102 reaches a specified value, the air pump 905 is closed, the change of the value on the pressure monitoring table 1102 is observed, and if the pointer 1205 on the pressure monitoring table 1102 does not change after a period of time, the valve body is qualified, if the pointer 1205 decreases, the valve body is unqualified, the qualified valve body can be directly removed, and the unqualified valve body needs to be further determined the air leakage position; S8: When the air leakage position of the unqualified valve body needs to be determined, the water pump 1002 is started to pump water from the water storage tank 1001 to the open sealing box 2, and when the water in the interior of the open sealing box 2 covers the top of the valve body, the water inlet is stopped, then air is continuously filled into the valve body, the air leakage position is observed, the air leakage position is photographed by the camera 1202, the T-shaped sliding block 1204 is rotated to slide along the annular T-shaped groove 1203, and then the pointer 1205 on the surface of the T-shaped sliding block 1204 is moved, and when the pointer 1205 points to the air leakage position, the air leakage position of the valve body is determined.

[0055] The technical features of the above embodiments can be combined arbitrarily, and to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the range disclosed in the specification.

[0056] The above embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A regulating valve body sealing detection device, comprising a workbench (1), characterized in that: The upper surface of the workbench (1) is fixedly connected to an open sealing box (2), and a sealing clamping component 1 (3) and a sealing clamping component 2 (4) for sealing and clamping the two ends of the valve body are respectively provided on the upper surface of the workbench (1) and on both sides of the open sealing box (2), and a driving component (5) for making the sealing clamping component 1 (3) and the sealing clamping component 2 (4) move synchronously is provided on the lower surface of the workbench (1), and a frame (6) is fixedly connected to the upper surface of the workbench (1) and located at the outer side of the open sealing box (2), and a valve A horizontal positioning assembly (7) for limiting the direction of the two ends of the valve body is provided, a pressing assembly (8) for pressing the valve body is provided below the frame (6), a gas supply assembly (9) for inputting gas is provided below the workbench (1), an inlet and outlet assembly (10) for inlet and outlet of the opening sealing box (2) is provided below the workbench (1), a measuring assembly (11) for detecting the sealing performance of the valve body is provided on the upper surface of the workbench (1) and located on one side of the second sealing clamping assembly (4), and a bubble positioning assembly (12) for positioning exposed bubbles is provided on the opening sealing box (2).

2. The regulating valve body sealing detection device according to claim 1, characterized in that: The sealing clamping assembly (3) includes a sliding rod (301) that is slidably connected to one side of the open sealing box (2), and the end of the sliding rod (301) located in the open sealing box (2) is fixedly connected to a sealing clamp (303). The upper surface of the workbench (1) is fixedly connected to a guide seat (302) used in conjunction with the sliding rod (301). The upper surface of the workbench (1) and the positions on both sides of the open sealing box (2) are provided with sliding openings (304), and the two sliding openings (304) are slidably connected to the I-type sliders (305), and the upper surface of one of the I-type sliders (305) is fixedly connected to a connecting frame (306), and the top of the connecting frame (306) is fixed to one end of the sliding rod (301).

3. The regulating valve body sealing detection device according to claim 2, characterized in that: The second sealing clamping assembly (4) includes a sliding tube (401) that is slidably connected to the other side of the open sealing box (2), one end of the sliding tube (401) is slidably connected to a sleeve (402), one end of the sliding tube (401) located in the open sealing box (2) is fixedly connected to a second sealing clamp (403), a second connecting frame (404) is fixedly connected to the circumferential outer wall of the sliding tube (401), and the bottom end of the second connecting frame (404) is fixed to the upper surface of another I-type slider (305), and a vent hole (405) for use with the sliding tube (401) is provided on the side of the sealing clamp (403) that contacts the valve body.

4. The regulating valve body sealing detection device according to claim 1, characterized in that: The driving assembly (5) includes two symmetrical fixed plates (501) fixedly connected to the inner wall of the top of the workbench (1), a bidirectional screw rod (502) is rotatably connected between the two fixed plates (501) via a bearing, two symmetrical connecting seats (503) are threadedly connected to the bidirectional screw rod (502), and the top ends of the two connecting seats (503) are respectively fixed to the lower surfaces of the two I-shaped sliders (305), and a driving motor (504) for causing the bidirectional screw rod (502) to rotate forward and reverse along the axial direction is fixedly connected to one side of one of the fixed plates (501).

5. The regulating valve body sealing detection device according to claim 1, characterized in that: The horizontal positioning assembly (7) includes an electric push rod (701) fixedly connected to the top outer wall of the frame (6), the output end of the electric push rod (701) is fixedly connected to a cross frame (702), the four corners of the lower surface of the cross frame (702) are fixedly connected to round rods (703), the bottom ends of the plurality of round rods (703) pass through the top inner wall of the frame (6) and are slidably connected to cylinders (7031), the top ends of the plurality of cylinders (7031) are fixedly connected to the circumferential outer walls of the corresponding round rods (703), and the bottom ends of the plurality of cylinders (7031) are fixedly connected to the circumferential outer walls of the plurality of cylinders (7031). A support frame (704) is fixedly connected, two symmetrical guide rods (705) are fixedly connected between the inner walls on both sides of the support frame (704), two symmetrical oblique frames (706) are slidably connected to the two guide rods (705), and a positioning clamping frame (707) is fixedly connected to the opposite sides of the bottom ends of the two oblique frames (706), a two-way screw rod (708) is rotatably connected between the inner walls on both sides of the middle position of the support frame (704) through a bearing, and a driving motor (709) is fixedly connected to the outer wall of one side of the support frame (704) to make the two-way screw rod (708) rotate forward and reverse along the axial direction.

6. The regulating valve body sealing detection device according to claim 5, characterized in that: The clamping assembly (8) comprises an electric push rod 2 (801) fixedly connected to the inner wall of the top of the frame (6), the output end of the electric push rod 2 (801) is fixedly connected to a slide (802), and the bottom end of the slide (802) passes through the support frame (704) and is fixedly connected to a pressure block (803).

7. The regulating valve body sealing detection device according to claim 1, characterized in that: The air supply assembly (9) includes a bearing seat (901) fixedly connected to the bottom inner wall of the open sealing box (2); a connecting pipe rack (904) is fixedly connected to the top inner wall of the workbench (1); an air inlet (903) for use with the connecting pipe rack (904) is provided on the bearing seat (901); an air pump (905) for use with the connecting pipe rack (904) is fixedly connected to the bottom frame of the workbench (1); a sealing gasket (902) is bonded to the contact side of the bearing seat (901), the sealing fixture 1 (303) and the sealing fixture 2 (403) with the valve body, and the material of the sealing gasket (902) is preferably rubber.

8. The regulating valve body sealing detection device according to claim 1, characterized in that: The water inlet and outlet assembly (10) comprises a water storage tank (1001) fixedly connected to a bottom frame of the workbench (1); a water pump (1002) connected to the interior of the water storage tank (1001) is fixedly connected to the bottom of one side of the water storage tank (1001); a water inlet pipe rack (1003) used in conjunction with the water pump (1002) is provided on the water pump (1002); the top end of the water inlet pipe rack (1003) extends into a position near the top of one side of the open sealing box (2); a drainage pipe rack (1004) connected to the bottom of the same side of the open sealing box (2) and the top of the water storage tank (1001) is provided; and a water stop valve is provided on the drainage pipe rack (1004).

9. The regulating valve body sealing detection device according to claim 3, characterized in that: The measuring assembly (11) comprises a sealed box (1101) fixedly connected to one end of the sleeve (402) and in communication therewith, the sealed box (1101) being provided with a pressure monitoring gauge (1102) for detecting the internal air pressure thereof, two symmetrical brackets (1103) being fixedly connected between the bottom outer wall of the sealed box (1101) and the upper surface of the workbench (1), the other side of the sealed box (1101) being fixedly connected to an exhaust pipe (1104) in communication with the interior thereof, the exhaust pipe (1104) being provided with a valve (1105).

10. The regulating valve body sealing detection device according to claim 7, characterized in that: The bubble positioning assembly (12) includes two symmetrical mounting brackets (1201) fixedly connected to the open sealing box (2), and cameras (1202) are fixedly connected to both ends of the upper surface of the two mounting brackets (1201). An annular T-groove (1203) is provided on the circumferential outer wall of the sealing clamp 1 (303) and the sealing clamp 2 (403), and a T-shaped slider (1204) is slidably connected in the two annular T-grooves (1203), and a plurality of pointers (1205) are fixedly connected to the T-shaped sliders (1204).

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