CN120800684A - Valve body tightness detection equipment of regulating valve - Google Patents
Valve body tightness detection equipment of regulating valveInfo
- Publication number
- CN120800684A CN120800684A CN202511165408.9A CN202511165408A CN120800684A CN 120800684 A CN120800684 A CN 120800684A CN 202511165408 A CN202511165408 A CN 202511165408A CN 120800684 A CN120800684 A CN 120800684A
- Authority
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- China
- Prior art keywords
- sealing
- fixedly connected
- valve body
- frame
- sliding
- Prior art date
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- Pending
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
- G01M3/08—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for pipes, cables or tubes; for pipe joints or seals; for valves; for welds
- G01M3/086—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for pipes, cables or tubes; for pipe joints or seals; for valves; for welds for valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/02—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby of table type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/10—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting holders for tool or work
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
本发明涉及阀体密封性检测技术领域，且公开了一种调节阀阀体密封性检测设备，包括工作台，所述工作台的上表面固定连接有开口密封盒，所述工作台上表面且位于开口密封盒的两侧分别设有对阀体两端进行密封夹持的密封夹持组件一和密封夹持组件二，所述工作台下表面设有使密封夹持组件一和密封夹持组件二同步移动的驱动组件。本发明不仅能够分别对阀体的三个开口进行密封夹持，确保三个接口都达到有效密封，形成一个完整的密封腔体方便进行压力测试，并且可以灵活地适应不同型号、规格的阀体，而且能够使阀体两端轴线与密封夹持组件一密封夹持组件二的轴线保持平行，使密封面与阀体接触面均匀受压，显著提升密封可靠性。
The present invention relates to the technical field of valve body sealing detection, and discloses a regulating valve body sealing detection device, comprising a workbench, the upper surface of the workbench is fixedly connected to an open sealing box, the upper surface of the workbench and on both sides of the open sealing box are respectively provided with a sealing clamping component 1 and a sealing clamping component 2 for sealing and clamping the two ends of the valve body, and the lower surface of the workbench is provided with a driving component for moving the sealing clamping component 1 and the sealing clamping component 2 synchronously. The present invention can not only seal and clamp the three openings of the valve body separately, ensuring that the three interfaces are effectively sealed, forming a complete sealing cavity for convenient pressure testing, and can flexibly adapt to valve bodies of different models and specifications, but also can make the axes of the two ends of the valve body parallel to the axes of the sealing clamping component 1 and the sealing clamping component 2, so that the sealing surface and the contact surface of the valve body are evenly pressurized, significantly improving the sealing reliability.
Description
Technical Field
The invention relates to the technical field of valve body tightness detection, in particular to a regulating valve body tightness detection device.
Background
The regulating valve is used as a core component of an industrial fluid control system, is widely applied to various key fields of petrochemical industry, electric power, pharmacy, water treatment and the like, and has the core function of accurately regulating the flow, pressure or temperature of a medium in a pipeline.
The valve body is used as a main pressure-bearing member and a fluid channel of the regulating valve, and the reliability of the sealing performance of the valve body is directly related to the safety, environmental protection, efficiency and operation cost of the whole process system.
Through retrieving, the chinese patent with publication number CN214583865U discloses a butterfly valve body sealing detection device, which can simulate the working state of a valve at high temperature, and has fast detection speed, however, the following problems still exist:
1. When the valve body is fixed, only two ends of the valve body are clamped and sealed, the other opening is manually sealed by adopting the blocking head and the clamp, the blocking head and the clamp cannot be ensured to be manually installed in place, the tightness is affected when the blocking head and the clamp are not installed in place, and the subsequent test result is also affected, so that the problem of how to synchronously and stably clamp the plurality of openings of the valve body is an urgent need to be solved at present;
2. When the valve body is placed, if the positions of the two ends are required to be uniformly pressed when clamping and sealing, the valve is required to be placed and aligned to the sealing clamps at the two ends of the valve body, but the valve needs to be manually adjusted for many times in the clamping process, so that a great amount of installation time is consumed, the efficiency of installing the valve is reduced, and therefore, how to quickly install the valve to ensure that the stress is uniform when clamping the two ends of the valve is also a problem which needs to be solved in the prior art;
3. When detecting the valve gas leakage, the gas leakage position needs to be determined so as to be convenient for the repair operation, but when detecting the gas leakage, the gas leakage position is generally determined by adopting manual perception, if the gas leakage position is smaller, the human body is difficult to perceive, so how to accurately and effectively find the gas leakage position and mark is also a problem which needs to be solved at present.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a device for detecting the tightness of a valve body of an adjusting valve, which mainly aims at solving the problems that when the valve body is fixed, clamping and sealing are only carried out on two ends of the valve body, the other opening is manually sealed by adopting a blocking head and a clamp, the manual installation of the blocking head and the clamp is not in place, the tightness is influenced if the installation is not in place, the subsequent test result is also influenced, and when the valve body is placed, if the positions of the two ends are required to be uniformly pressed when the valve body is clamped and sealed, the valve is required to be placed to be aligned to sealing clamps at the two ends of the valve body, but the manual adjustment is required to be carried out for many times in the clamping process, so that the installation time of the valve is consumed, the installation efficiency of the valve is reduced, the air leakage position is required to be determined when the air leakage of the valve is detected, the repair operation is required later, the manual perception is generally adopted when the air leakage position is detected, and if the air leakage position is smaller, the human body is difficult to perceive.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a governing valve body leakproofness check out test set, includes the workstation, the upper surface fixedly connected with opening seal box of workstation, the both sides that workstation upper surface and lie in opening seal box are equipped with respectively and seal clamping assembly one and seal clamping assembly two to the sealed centre gripping of valve body both ends, the workstation lower surface is equipped with the drive assembly who makes sealed clamping assembly one and seal clamping assembly two synchronous movement, the upper surface of workstation and lie in opening seal box outside position fixedly connected with frame, the frame top is equipped with the horizontal positioning subassembly that prescribes a limit to the orientation of valve body both ends, the frame below is equipped with the compression module that compresses tightly the valve body, the workstation below is equipped with the air feed subassembly of input gas, the workstation below is equipped with the water inlet and outlet subassembly that advances to opening seal box, workstation upper surface and lie in sealed clamping assembly two sides are equipped with the measuring assembly that detects the valve body leakproofness, be equipped with the bubble positioning assembly that fixes a position exposing the bubble on the opening seal box.
Further, the first sealing clamping assembly comprises a sliding rod which penetrates through the sealing clamping assembly and is connected to one side of the sealing box, the first sealing clamp is fixedly connected to the end portion of the sliding rod, the upper surface of the workbench is fixedly connected with a guide seat which is matched with the sliding rod, sliding openings are formed in the upper surface of the workbench and in the positions of two sides of the sealing box, two sliding connectors are respectively arranged in the sliding openings in a sliding mode, one of the sliding connectors is fixedly connected with the first connecting frame, and the top end of the first connecting frame is fixed to one end of the sliding rod.
On the basis of the scheme, the second sealing clamping assembly comprises a sliding tube which penetrates through the sliding tube and is connected to the other side of the opening sealing box in a sliding mode, a sleeve is connected to one end of the sliding tube in a sliding mode, a second sealing clamp is fixedly connected to one end of the sliding tube and located in the opening sealing box, a second connecting frame is fixedly connected to the outer circumferential wall of the sliding tube, the bottom end of the second connecting frame is fixed to the upper surface of the other I-shaped sliding block, and a vent hole matched with the sliding tube for use is formed in one side, in contact with the valve body, of the second sealing clamp.
As a still further scheme of the invention, the driving assembly comprises two symmetrical fixing plates fixedly connected to the inner wall of the top of the workbench, a first bidirectional screw rod is rotatably connected between the two fixing plates through a bearing, two symmetrical connecting seats are connected to the first bidirectional screw rod in a threaded manner, the top ends of the two connecting seats are respectively fixed with the lower surfaces of the two I-shaped sliding blocks, and a first driving motor for enabling the first bidirectional screw rod to rotate positively and negatively along the axial direction is fixedly connected to one side of one fixing plate.
Further, the horizontal positioning assembly comprises a first electric push rod fixedly connected to the outer wall of the top of the frame, an output end of the first electric push rod is fixedly connected with a cross-shaped frame, round rods are fixedly connected to four corners of the lower surface of the cross-shaped frame, the bottom ends of the round rods are fixedly connected with cylinders through the inner walls of the tops of the frames, tension springs are fixedly connected between the top ends of the cylinders and the corresponding circumference outer walls of the round rods, the bottom ends of the cylinders are fixedly connected with supporting frames, two guide rods are fixedly connected with two symmetrical inclined frames, two inclined frames are fixedly connected to the two guide rods in a sliding mode, two positioning clamping frames are fixedly connected to the opposite sides of the bottom ends of the inclined frames, two bidirectional screw rods are connected between the inner walls of the two sides of the middle position of the supporting frames through bearings in a rotating mode, and driving motors for enabling the two bidirectional screw rods to rotate positively and negatively along the axial direction are fixedly connected to the outer walls of one side of the supporting frames.
On the basis of the scheme, the pressing assembly comprises a second electric push rod fixedly connected to the inner wall of the top of the frame, the output end of the second electric push rod is fixedly connected with a sliding frame, and the bottom end of the sliding frame penetrates through the supporting frame to be fixedly connected with a pressing block.
As a still further scheme of the invention, the air supply assembly comprises a bearing seat fixedly connected to the inner wall of the bottom of the opening sealing box, a connecting pipe rack is fixedly connected to the inner wall of the top of the workbench, an air inlet matched with the connecting pipe rack is formed in the bearing seat, an air pump matched with the connecting pipe rack is fixedly connected to the bottom frame of the workbench, sealing gaskets are adhered to the contact sides of the bearing seat, the first sealing clamp and the second sealing clamp with the valve body, and the sealing gasket material is preferably rubber.
Further, advance drainage subassembly and include the storage water tank of fixed connection on workstation bottom support body, one side of storage water tank is close to bottom position fixedly connected with rather than the inside water pump that is linked together, be equipped with the water inlet pipe support rather than the cooperation use on the water pump, water inlet pipe support top stretches into opening seal box one side and is close to the top position, opening seal box homonymy is close to bottom position and storage water tank one side and is close to the top position and is equipped with the drainage pipe support that is linked together, be equipped with the water stop valve on the drainage pipe support.
On the basis of the scheme, the measuring assembly comprises a sealing box fixedly connected to one end of the sleeve and communicated with the sealing box, a pressure monitoring meter for detecting the internal air pressure of the sealing box is arranged on the sealing box, two symmetrical brackets are fixedly connected between the outer wall of the bottom of the sealing box and the upper surface of the workbench, an exhaust pipe communicated with the inside of the sealing box is fixedly connected to the other side of the sealing box, and a valve is arranged on the exhaust pipe.
As still further scheme of the invention, the bubble positioning assembly comprises two mounting frames which are fixedly connected on the open sealing box and are symmetrical, cameras are fixedly connected at two ends of the upper surface of the two mounting frames, annular T grooves are formed in the outer walls of the circumferences of the first sealing clamp and the second sealing clamp, T-shaped sliding blocks are slidably connected in the two annular T grooves, and pointers are fixedly connected to the plurality of T-shaped sliding blocks.
Compared with the prior art, the invention provides the device for detecting the tightness of the valve body of the regulating valve, which has the following beneficial effects:
1. According to the invention, through the matching use of the first sealing clamping assembly, the second sealing clamping assembly, the bearing seat and the pressing assembly, the three openings of the valve body are respectively sealed and clamped, so that the three interfaces are ensured to be effectively sealed, a complete sealing cavity is formed, the pressure test is convenient, and the valve body can be flexibly adapted to valve bodies with different types and specifications.
2. According to the invention, through the horizontal positioning assembly, the axes at the two ends of the valve body are parallel to the axis of the sealing clamping assembly I and the axis of the sealing clamping assembly II, so that the contact surface of the sealing surface and the valve body is uniformly pressed, the sealing reliability is obviously improved, the angle and the position of the valve body are not required to be repeatedly adjusted, the time is saved, the time for installing and fixing the valve body is effectively prolonged, and the installation efficiency is effectively increased.
3. According to the invention, through the water inlet and outlet assembly, when the air leakage position of the valve body needs to be determined, water can be injected into the opening sealing box through the water inlet and outlet assembly, and the air leakage position is conveniently determined by observing air bubbles, so that the valve is simple in structure and convenient to use.
4. According to the invention, through the bubble positioning assembly, the position of the exposed bubble can be determined under the combined action of the camera and the pointer in the bubble positioning assembly, so that a worker can quickly and accurately find out the position of the air leakage after water drainage and mark the position.
5. According to the invention, through the exhaust pipe and the valve arranged on one side of the sealing box, after detection is finished, the high-pressure gas in the valve can be slowly discharged by opening the valve, so that the problem that potential safety hazards exist due to sudden release of the high-pressure gas in the valve body due to direct disassembly is avoided.
Drawings
FIG. 1 is a schematic view of a front side three-dimensional structure of a device for detecting tightness of a valve body of a regulating valve according to the present invention;
FIG. 2 is a schematic view of a rear side three-dimensional structure of a device for detecting tightness of a valve body of a regulating valve according to the present invention;
FIG. 3 is a schematic view of the enlarged partial structure of FIG. 1 of a valve body tightness detection device for a regulating valve according to the present invention;
fig. 4 is an enlarged schematic structural view of a sealing and clamping assembly of a valve body tightness detection device for an adjusting valve according to the present invention;
fig. 5 is an enlarged schematic structural view of a sealing and clamping assembly two of a valve body tightness detection device for an adjusting valve provided by the invention;
FIG. 6 is a schematic diagram of a gas supply assembly of a device for detecting tightness of a valve body of a regulating valve according to the present invention;
Fig. 7 is a schematic diagram of a frame structure of a valve body tightness detecting device for a regulating valve according to the present invention;
FIG. 8 is a schematic diagram of a horizontal positioning assembly of a device for detecting tightness of a valve body of a regulating valve according to the present invention;
FIG. 9 is a schematic view of the bottom structure of FIG. 8 of a valve body tightness detection device for regulating valves according to the present invention;
FIG. 10 is a schematic view of a part of the enlarged structure of FIG. 9 of a valve body tightness detecting device for a regulating valve according to the present invention;
FIG. 11 is a schematic diagram of a water inlet and outlet assembly of a valve body tightness detection device of an adjusting valve according to the present invention;
Fig. 12 is an enlarged schematic view of a bubble positioning assembly of a valve body tightness detection device for a regulating valve according to the present invention.
In the figure, 1, a workbench; 2, an opening sealing box; 3, sealing and clamping the first component; 301, slide bar, 302, guide holder, 303, first sealing clamp, 304, slide opening, 305, first I-shaped slide block, 306, first connecting frame, 4, second sealing clamp assembly, 401, slide tube, 402, sleeve, 403, second sealing clamp, 404, second connecting frame, 405, vent hole, 5, driving assembly, 501, fixing plate, 502, first bidirectional screw, 503, connecting seat, 504, first driving motor, 6, frame, 7, horizontal positioning assembly, 701, first electric push rod, 702, cross frame, 703, round rod, 7031, cylinder, 7032, tension spring, 704, support frame, 705, guide rod, 706, inclined frame, 707, positioning clamp frame, 708, second bidirectional screw, 709, driving motor, 8, pressing assembly, 801, second electric push rod, 802, carriage, 803, pressing block, 9, air supply assembly, 901, bearing seat, 902, sealing pad, 1103, 904, connecting air pump, 10, water inlet and outlet assembly, 1001, 1002, water pump, 1003, pipe frame, 1004, water outlet frame, 11, water inlet and frame, storage frame, 1101, air inlet and outlet frame, storage frame, 1101, and air inlet and air pump, and air inlet and air supply modules, storage frame, and sealing assemblies, such as set up, and sealing blocks, and sealing, 802, sealing, sealing,.
Detailed Description
The present invention will be further described in detail below with reference to examples, which are provided to illustrate the objects, technical solutions and advantages of the present invention. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The numbering of components herein, such as "first," "second," etc., is used merely to distinguish between the described objects and does not have any sequential or technical meaning. The term "coupled" as used herein includes both direct and indirect coupling (coupling), unless otherwise indicated. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
Referring to fig. 1-12, a device for detecting tightness of a valve body of a regulating valve includes a workbench 1, an open sealing box 2 is fixedly connected to an upper surface of the workbench 1 through bolts, a first sealing clamping component 3 and a second sealing clamping component 4 for sealing and clamping two ends of the valve body are respectively arranged on two sides of the open sealing box 2 on the upper surface of the workbench 1, a driving component 5 for synchronously moving the first sealing clamping component 3 and the second sealing clamping component 4 is arranged on a lower surface of the workbench 1, a frame 6 is fixedly connected to an upper surface of the workbench 1 and located on an outer side of the open sealing box 2 through bolts, a horizontal positioning component 7 for limiting orientations of two ends of the valve body is arranged above the frame 6, a compressing component 8 for compressing the valve body is arranged below the frame 6, a gas supply component 9 for supplying and discharging the gas is arranged below the workbench 1, a measuring component 11 for detecting tightness of the valve body is arranged on one side of the sealing clamping component 4 on the upper surface of the workbench 1, and a bubble positioning component 12 for positioning exposed bubbles is arranged on the open sealing box 2.
Specifically when detecting the tightness of the valve body, firstly, the valve body is placed on the air supply assembly 9, then the position of the valve body is adjusted through the horizontal positioning assembly 7, the two ends of the valve body are respectively aligned to the first sealing clamping assembly 3 and the second sealing clamping assembly 4, then the upper position and the lower position of the valve body are fixed through the pressing assembly 8, after the upper position and the lower position are fixed, the first sealing clamping assembly 3 and the second sealing clamping assembly 4 are synchronously driven to move through the driving assembly 5, the two ends of the valve body are clamped and sealed, then air is filled into the valve body through the air supply assembly 9, whether the valve body leaks air or not is detected through the measuring assembly 11, if the air leaks air, the air is filled into the opening sealing box 2 through the air inlet and drainage assembly 10 until the air leaks outside the top of the valve body, and then the air leakage position is marked through the air bubble positioning assembly 12 is observed.
In order to solve the technical problem of sealing and clamping at two ends of a valve body, the sealing and clamping assembly I3 comprises a sliding rod 301 penetrating through and connected to one side of the open sealing box 2 in a sliding mode, the end portion of the sliding rod 301 positioned in the open sealing box 2 is fixedly connected with a sealing clamp I303 through a bolt, the upper surface of the workbench 1 is fixedly connected with a guide seat 302 matched with the sliding rod 301 through a bolt, sliding ports 304 are formed in the upper surface of the workbench 1 and positioned at two sides of the open sealing box 2, I-shaped sliding blocks 305 are connected in the two sliding ports 304 in a sliding mode, the upper surface of one I-shaped sliding block 305 is fixedly connected with a connecting frame I306 through a bolt, and the top end of the connecting frame I306 is fixed with one end of the sliding rod 301.
Specifically, one of the two i-shaped sliding blocks 305 slides while driving the sliding rod 301 to slide along one side of the open sealing box 2 through the first connecting frame 306, so that the first sealing clamp 303 at one end moves towards the direction approaching to the valve body.
Further, the second sealing and clamping assembly 4 comprises a sliding tube 401 penetrating through and connected to the other side of the open sealing box 2 in a sliding manner, one end of the sliding tube 401 is connected with a sleeve 402 in a sliding manner, one end of the sliding tube 401 located in the open sealing box 2 is fixedly connected with a second sealing clamp 403 through a bolt, the circumferential outer wall of the sliding tube 401 is fixedly connected with a second connecting frame 404 through a bolt, the bottom end of the second connecting frame 404 is fixed with the upper surface of the other I-shaped sliding block 305, and one side, in contact with the valve body, of the second sealing clamp 403 is provided with a vent 405 matched with the sliding tube 401.
Specifically, the second connecting frame 404 on the other sliding block 305 drives the sliding tube 401 to slide along one side of the open sealing box 2 while the sliding tube 401 slides, and the second sealing clamp 403 at one end of the sliding tube moves in a direction approaching to the valve body while the sliding tube 401 slides, so that the second sealing clamp 403 and the first sealing clamp 303 synchronously move to seal and clamp the two ends of the valve body.
In order to solve the technical problem of synchronous movement of clamps at two ends of a valve body, the invention adopts a driving assembly 5 to comprise two symmetrical fixing plates 501 fixedly connected to the inner wall of the top of a workbench 1 through bolts, a two-way screw rod I502 is rotatably connected between the two fixing plates 501 through a bearing, two symmetrical connecting seats 503 are connected to the two-way screw rod I502 through threads, the top ends of the two connecting seats 503 are respectively fixed with the lower surfaces of two I-shaped sliding blocks 305, and one side of one fixing plate 501 is fixedly connected with a driving motor I504 which enables the two-way screw rod I502 to rotate positively and negatively along the axial direction through bolts.
Specifically, after the valve body is fixed at the upper and lower positions, the first driving motor 504 is started to drive the first bidirectional screw rod 502 to rotate, the first bidirectional screw rod 502 is driven to be in symmetrical threaded connection with the two connecting seats 503 to approach each other while rotating, and the two connecting seats 503 approach each other while driving the I-shaped sliding blocks 305 fixed with the two connecting seats to slide along the sliding opening 304.
In order to solve the technical problem that openings at two ends of the valve body are opposite to two clamping assemblies when the valve body is clamped and fixed, the horizontal positioning assembly 7 comprises a first electric push rod 701 fixedly connected to the outer wall of the top of a frame 6 through bolts, the output end of the first electric push rod 701 is fixedly connected with a cross-shaped frame 702 through bolts, round rods 703 are fixedly connected to four corners of the lower surface of the cross-shaped frame 702 through bolts, the bottoms of the round rods 703 penetrate through the inner walls of the top of the frame 6 to be slidably connected with cylinders 7031, tension springs 7032 are welded between the tops of the cylinders 7031 and the circumferential outer walls of the corresponding round rods 703, the bottoms of the cylinders 7031 are fixedly connected with supporting frames 704 through bolts, two symmetrical guide rods 705 are fixedly connected between the inner walls of two sides of the supporting frames 704 through bolts, two inclined frames 706 are fixedly connected with positioning clamp frames 707 through bolts, two side inner walls of the middle positions of the supporting frames 704 are rotatably connected with two bidirectional screw rods 708 through bearings, and one side outer wall of the supporting frames 704 is fixedly connected with a second motor 709 which enables the two bidirectional screw rods 708 to rotate forward and backward along the axial direction.
Specifically, after the valve body is placed, the electric push rod 701 is started to shrink, and then the cross-shaped frames 702 drive the round rods 703 to slide downwards, so that the support frame 704 at the bottom of the electric push rod 701 drives the positioning clamping frame 707 on the inclined frame 706 to move downwards until the positioning clamping frame 707 just can slightly clamp the valve body, after the positioning clamping frame 707 moves to a specified position, the electric push rod 701 is closed, the driving motor 709 is started to rotate along the axial direction to drive the bidirectional screw rod 708 to rotate, the bidirectional screw rod 708 rotates and simultaneously drives the symmetrical two inclined frames 706 to synchronously move in the directions approaching each other, so that the positioning clamping frames 707 on the bidirectional screw rod 708 approach each other to clamp the valve body, and the two ends of the valve body are opposite to the sealing clamping assembly 3 and the sealing clamping assembly 4 respectively.
The axes at two ends of the valve body are parallel to the axes of the first sealing clamping assembly 3 and the second sealing clamping assembly 4, the contact surface of the sealing surface and the valve body is uniformly pressed, the sealing reliability is obviously improved, the valve body angle and the valve body position do not need to be repeatedly adjusted, the time is saved, the time for installing and fixing the valve body is effectively prolonged, and the installation efficiency is effectively improved.
In order to solve the technical problem of fixing the upper and lower positions of the valve body, the invention adopts the pressing component 8 to comprise a second electric push rod 801 fixedly connected to the inner wall of the top of the frame 6 through bolts, the output end of the second electric push rod 801 is fixedly connected with a sliding frame 802 through bolts, and the bottom end of the sliding frame 802 penetrates through the supporting frame 704 and is fixedly connected with a pressing block 803 through bolts.
Specifically, the second electric push rod 801 is started to extend to push the sliding frame 802 to slide downwards along the supporting frame 704, the pressing block 803 below the sliding frame 802 is pushed to move downwards while the sliding frame 802 slides downwards to enable the bottom of the valve body to be tightly attached to the bearing seat 901, meanwhile, the upper and lower positions of the valve body are fixed, and due to gaps between the valve body and the bearing seat 901, the cylinder 7031 is slightly moved downwards along the round rod 703 while the valve body is pushed to move downwards, and meanwhile, the tension spring 7032 is stressed to extend.
Further after the clamping and fixing of the two ends of the valve body are completed, the driving motor II 709 is started to reversely rotate the bidirectional screw rod II 708, the positioning clamping frame 707 is driven to be far away from each other through the inclined frame 706 when the bidirectional screw rod II 708 reversely rotates, the driving motor II 709 is closed after the bidirectional screw rod II is separated from the valve body, the electric push rod II 701 is started to extend to enable the positioning clamping frame 707 to move upwards, and accordingly follow-up detection is facilitated.
Through sealing clamping assembly one 3, sealing clamping assembly two 4, bear seat 901 and compress tightly the cooperation of assembly 8 and use, seal the centre gripping to three openings of valve body respectively, ensure that three interface all reaches effective seal, form a complete sealed cavity and conveniently carry out the pressure test to can adapt to the valve body of different models, specifications in a flexible way.
In order to solve the technical problem that the internal pressure of the valve body is increased by filling gas into the valve body, the invention adopts the gas supply assembly 9 to comprise a bearing seat 901 fixedly connected to the inner wall of the bottom of the opening sealing box 2 through bolts, a connecting pipe rack 904 is fixedly connected to the inner wall of the top of the workbench 1 through bolts, a gas inlet hole 903 matched with the connecting pipe rack 904 is formed in the bearing seat 901, a gas pump 905 (the model of the gas pump 905 is a D40 micropump) matched with the connecting pipe rack 904 is fixedly connected to the bottom frame of the workbench 1 through bolts, and sealing gaskets 902 are adhered to the contact sides of the bearing seat 901, the first sealing clamp 303 and the second sealing clamp 403 and the valve body, and the sealing gaskets 902 are preferably rubber gaskets.
When the tightness of the valve body is detected, the valve body is first placed upside down on the carrier 901 so as to be T-shaped.
After the multi-surface fixing of the valve body is completed, the air pump 905 is started to charge air into the valve body through the air inlet hole 903 on the connecting pipe rack 904 and the bearing seat 901, and a sealing space is formed among the valve body, the sliding pipe 401, the sleeve 402 and the sealing box 1101. In order to solve the technical problem of how to find out whether the valve body leaks air, the invention adopts the measuring assembly 11 to comprise a sealing box 1101 fixedly connected to one end of a sleeve 402 through bolts and communicated with the sealing box, a pressure monitoring meter 1102 (the model of the pressure monitoring meter 1102 is Y-150 pressure meter) for detecting the internal air pressure of the sealing box 1101 is arranged on the sealing box 1101, two symmetrical brackets 1103 are fixedly connected between the outer wall of the bottom of the sealing box 1101 and the upper surface of a workbench 1 through bolts, an exhaust pipe 1104 communicated with the inside of the sealing box 1101 is welded on the other side of the sealing box 1101, and a valve 1105 is arranged on the exhaust pipe 1104.
Specifically, when the value on the pressure monitoring meter 1102 reaches the specified value, the air pump 905 is turned off, the change of the value on the pressure monitoring meter 1102 is observed, if the pointer 1205 on the pressure monitoring meter 1102 is unchanged after a period of time, the tightness of the valve body is qualified, if the pointer 1205 index is low, the tightness of the valve body is unqualified, the qualified valve body can be directly detached, and the unqualified valve body needs to further determine the air leakage position.
The exhaust pipe 1104 and the valve 1105 can slowly exhaust the gas with high pressure inside by opening the valve 1105 after the detection is completed, so as to avoid the problem that the valve body is directly disassembled and the gas with high pressure inside is suddenly released to have potential safety hazard.
In order to solve the technical problem of conveniently observing the air leakage position, the invention adopts the water inlet and drain assembly 10 to comprise a water storage tank 1001 fixedly connected to the bottom frame body of the workbench 1 through bolts, one side of the water storage tank 1001 is fixedly connected with a water pump 1002 (the model of the water pump 1002 is an ISW horizontal clean water pump) communicated with the inside of the water storage tank through bolts, a water inlet pipe frame 1003 matched with the water pump 1002 is arranged on the water pump 1002, the top end of the water inlet pipe frame 1003 stretches into the position, close to the top end, of the open seal box 2, a water drain pipe frame 1004 communicated with the position, close to the bottom, of the same side of the open seal box 2 and the position, close to the top, of one side of the water storage tank 1001 is arranged, and a water stop valve is arranged on the water drain pipe frame 1004.
Specifically, when the position of the leakage 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, water in the water pump can stop entering after the water in the water pump passes through the top of the valve body, then gas is continuously and slowly filled into the valve body, and the position of the exposed air bubble is observed.
Through the water inlet and drainage assembly 10 that is equipped with, can be when the valve body gas leakage position is confirmed to needs, let in the water injection of drainage assembly 10 toward opening seal box 2, through observing the convenient gas leakage position of confirming of bubble, simple structure facilitate the use.
In order to determine the technical problem of the leakage position of the valve body, the invention adopts the bubble positioning assembly 12 to comprise two symmetrical mounting frames 1201 fixedly connected to the opening sealing box 2 through bolts, cameras 1202 are fixedly connected to the two ends of the upper surface of the two mounting frames 1201 through bolts, annular T grooves 1203 are formed in the circumferential outer walls of the first sealing clamp 303 and the second sealing clamp 403, T-shaped sliding blocks 1204 are slidably connected in the two annular T grooves 1203, and pointers 1205 are fixedly connected to the plurality of T-shaped sliding blocks 1204 through bolts.
Specifically, when the air leakage position is shot by the camera 1202, the rotatable T-shaped slider 1204 slides along the annular T-shaped groove 1203, so that the pointer 1205 on the surface of the rotatable T-shaped slider moves, and when the pointer 1205 points to the air leakage position, the air leakage position of the valve body can be determined.
Through the combined action of the camera 1202 and the pointer 1205, the position where the air bubble is exposed is determined, so that a worker can quickly and accurately find out the position of the air leakage after draining and mark the position.
It should be noted that, the inner walls of the threaded holes on the connecting seat 503 and the supporting frame 704 are axially provided with annular grooves, nylon 66 damping rings with shore hardness of 85A are embedded in the grooves, and continuous axial compression force generated by elastic deformation of the nylon 66 damping rings respectively forms 15 ° -20 ° spiral angle interference fit with the surfaces of the bidirectional screw one 502 and the bidirectional screw two 708, when the screw pair bears axial vibration load, the nylon insert can generate elastic compression amount of 0.3mm at maximum, so that the friction coefficient between the screw contact surfaces is increased from 0.15 to 0.68 (according to the test of ASTM D1894 standard), and loose displacement caused by screw rebound is effectively inhibited.
It should be noted that, the electric push rod 701, the electric push rod 801, the driving motor 504, the driving motor 709, the air pump 905, the water pump 1002, etc. are in the prior art, and can be set by a person skilled in the art according to actual needs, and details are not described here.
The invention is divided into the following steps when in use:
When the tightness of the valve body is detected, firstly, the valve body is inversely placed on a bearing seat 901 to enable the valve body to be T-shaped, after the valve body is placed, an electric push rod I701 is started to shrink and then a plurality of round rods 703 are driven to slide downwards through a cross-shaped frame 702, so that a positioning clamping frame 707 on an inclined frame 706 is driven to move downwards through a support frame 704 at the bottom of the valve body until the positioning clamping frame 707 just can slightly clamp the valve body, the electric push rod I701 is closed after the positioning clamping frame 707 moves to a designated position, a driving motor II 709 is started to rotate along the axial direction to drive a bidirectional screw rod II 708 to rotate, and two symmetrical inclined frames 706 on the bidirectional screw rod II 708 are driven to synchronously move towards directions close to each other while the bidirectional screw rod II 708 rotates, and therefore the positioning clamping frames 707 on the bidirectional screw rod II are mutually close to clamp the valve body and slightly lift the valve body, and two ends of the valve body are respectively opposite to a sealing clamping assembly I and a sealing clamping assembly II 4;
S2, then starting the electric push rod II 801 to extend so as to push the sliding frame 802 to slide downwards along the supporting frame 704, pushing the pressing block 803 below the sliding frame 802 to move downwards while sliding downwards so as to enable the bottom of the valve body to be tightly attached to the bearing seat 901, fixing the upper and lower positions of the valve body, and pushing the valve body to move downwards while slightly moving downwards along the round rod 703 due to gaps between the valve body and the bearing seat 901, and enabling the cylinder 7031 to stretch under stress;
S3, after the valve body is fixed in the upper and lower positions, starting a first driving motor 504 to drive a first bidirectional screw rod 502 to rotate, driving two connecting seats 503 which are symmetrically connected with the first bidirectional screw rod 502 in a threaded manner to approach each other while rotating the first bidirectional screw rod 502, and driving an I-shaped sliding block 305 fixed with the two connecting seats 503 to slide along a sliding opening 304 while the two connecting seats 503 approach each other;
s4, when one of the I-shaped sliding blocks 305 slides, the first connecting frame 306 drives the sliding rod 301 to slide along one side of the open sealing box 2, so that the first sealing clamp 303 at one end moves towards the direction approaching to the valve body;
S5, driving the sliding tube 401 to slide along one side of the opening sealing box 2 through the second connecting frame 404 when the other I-shaped sliding block 305 slides, and enabling the second sealing clamp 403 at one end of the sliding tube 401 to move towards the direction close to the valve body when the sliding tube 401 slides, wherein the second sealing clamp 403 and the first sealing clamp 303 synchronously move to seal and clamp the two ends of the valve body;
S6, after clamping and fixing of two ends of the valve body are completed, a driving motor II 709 is started to reversely rotate a bidirectional screw rod II 708, the positioning clamping frames 707 are driven to be far away from each other through the inclined frames 706 when the bidirectional screw rod II 708 reversely rotates, the driving motor II 709 is closed after the bidirectional screw rod II is separated from the valve body, and an electric push rod I701 is started to extend to enable the positioning clamping frames 707 to move upwards, so that follow-up detection is facilitated;
S7, then starting an air pump 905 to charge air into the valve body through an air inlet 903 connected with the pipe rack 904 and the bearing seat 901, forming a sealing space in the valve body, the sliding pipe 401, the sleeve 402 and the sealing box 1101, closing the air pump 905 when the value on the pressure monitoring meter 1102 reaches a specified value, observing the change of the value on the pressure monitoring meter 1102, and if the pointer 1205 on the pressure monitoring meter 1102 does not change after a period of time, the tightness of the valve body is qualified, if the pointer 1205 index becomes low, the tightness of the valve body is unqualified, the qualified valve body can be directly detached, and the unqualified valve body needs to further determine the air leakage position;
And S8, when the position of the leakage of the unqualified valve body needs to be determined, firstly, starting the water pump 1002 to pump water from the water storage tank 1001 into the open sealing box 2, stopping water inflow when the water in the water pump is over the top of the valve body, then continuously and slowly filling air into the valve body, observing the exposed position of the air bubble, shooting the leakage position through the camera 1202, simultaneously, sliding the rotatable T-shaped slider 1204 along the annular T-shaped groove 1203, further moving the pointer 1205 on the surface of the rotatable T-shaped slider, and determining the leakage position of the valve body when the pointer 1205 points to the leakage position.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples merely represent a few embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the present invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.
Claims (10)
1. The utility model provides a regulating valve body tightness detection equipment, includes workstation (1), its characterized in that, the upper surface fixedly connected with opening seal box (2) of workstation (1), workstation (1) upper surface just is located the both sides of opening seal box (2) and is equipped with respectively and seals clamping assembly one (3) and sealing clamping assembly two (4) of centre gripping to the valve body both ends, workstation (1) lower surface is equipped with drive assembly (5) that make sealing clamping assembly one (3) and sealing clamping assembly two (4) synchronous movement, the upper surface of workstation (1) just is located opening seal box (2) outside position fixedly connected with frame (6), frame (6) top is equipped with horizontal positioning component (7) that limit for the valve body both ends orientation, frame (6) below is equipped with and compresses tightly compressing tightly subassembly (8) of valve body, workstation (1) below is equipped with the air feed subassembly (9) of input gas, workstation (1) below is equipped with advances drainage subassembly (10) to opening seal box (2), workstation (1) upper surface and be located sealing assembly two and measure the side of sealing assembly (11), and the opening sealing box (2) is provided with a bubble positioning assembly (12) for positioning the exposed bubbles.
2. The device for detecting tightness of a valve body of a regulating valve according to claim 1, wherein the first sealing clamping assembly (3) comprises a sliding rod (301) penetrating through and connected to one side of the opening sealing box (2), a first sealing clamp (303) is fixedly connected to the end portion of the sliding rod (301) located in the opening sealing box (2), a guide seat (302) matched with the sliding rod (301) is fixedly connected to the upper surface of the workbench (1), sliding openings (304) are formed in the upper surface of the workbench (1) and located on two sides of the opening sealing box (2), I-shaped sliding blocks (305) are connected to the two sliding openings (304) in a sliding mode, a first connecting frame (306) is fixedly connected to the upper surface of one of the I-shaped sliding blocks (305), and the top end of the first connecting frame (306) is fixed to one end of the sliding rod (301).
3. The device for detecting tightness of a valve body of a regulating valve according to claim 2, wherein the second sealing clamping assembly (4) comprises a sliding tube (401) penetrating through and connected to the other side of the sealing box (2) in a sliding manner, one end of the sliding tube (401) is connected with a sleeve (402) in a sliding manner, one end of the sliding tube (401) located in the sealing box (2) is fixedly connected with a second sealing clamp (403), a second connecting frame (404) is fixedly connected to the outer circumferential wall of the sliding tube (401), the bottom end of the second connecting frame (404) is fixed to the upper surface of the other I-shaped sliding block (305), and a vent hole (405) matched with the sliding tube (401) is formed in one side, contacted with the valve body, of the second sealing clamp (403).
4. The device for detecting tightness of a valve body of a regulating valve according to claim 1, wherein the driving assembly (5) comprises two symmetrical fixing plates (501) fixedly connected to the inner wall of the top of the workbench (1), a bidirectional screw rod I (502) is rotatably connected between the two fixing plates (501) through a bearing, two symmetrical connecting seats (503) are connected to the bidirectional screw rod I (502) in a threaded manner, the top ends of the two connecting seats (503) are respectively fixed to the lower surfaces of the two I-shaped sliding blocks (305), and a driving motor I (504) for enabling the bidirectional screw rod I (502) to rotate positively and negatively along the axial direction is fixedly connected to one side of one fixing plate (501).
5. The device for detecting tightness of a valve body of an adjusting valve according to claim 1, wherein the horizontal positioning component (7) comprises a first electric push rod (701) fixedly connected to the outer wall of the top of the frame (6), the output end of the first electric push rod (701) is fixedly connected with a cross-shaped frame (702), four corners of the lower surface of the cross-shaped frame (702) are fixedly connected with round rods (703), the bottom ends of the round rods (703) penetrate through the inner wall of the top of the frame (6) and are slidably connected with cylinders (7031), tension springs (7032) are fixedly connected between the top ends of the cylinders (7031) and the circumferential outer wall of the corresponding round rods (703), a supporting frame (704) is fixedly connected to the bottom ends of the cylinders (7031), two symmetrical guide rods (706) are fixedly connected between the inner walls of two sides of the supporting frame (704), two inclined frames (706) are slidably connected with two symmetrical inclined frames (706), the opposite sides of the bottom ends of the two inclined frames (706) are fixedly connected with positioning clamping frames (707), the inner walls of the middle positions of the supporting frame (704) are fixedly connected with two screw rods (708) along the axial direction of the two outer walls of the two supporting frame (708), and the two screw rods (708) are fixedly connected with two screw rods (708) along the two axial directions.
6. The device for detecting tightness of a valve body of a regulating valve according to claim 5, wherein the pressing assembly (8) comprises a second electric push rod (801) fixedly connected to the inner wall of the top of the frame (6), an output end of the second electric push rod (801) is fixedly connected with a sliding frame (802), and a bottom end of the sliding frame (802) penetrates through the supporting frame (704) and is fixedly connected with a pressing block (803).
7. The regulating valve body tightness detection device according to claim 1, wherein the air supply assembly (9) comprises a bearing seat (901) fixedly connected to the inner wall of the bottom of the opening sealing box (2), a connecting pipe rack (904) is fixedly connected to the inner wall of the top of the workbench (1), an air inlet hole (903) matched with the connecting pipe rack (904) is formed in the bearing seat (901), an air pump (905) matched with the connecting pipe rack (904) is fixedly connected to the bottom frame of the workbench (1), and sealing gaskets (902) are adhered to the contact sides of the bearing seat (901), the first sealing clamp (303) and the second sealing clamp (403) with the valve body, and the sealing gaskets (902) are preferably made of rubber.
8. The device for detecting tightness of valve body of regulating valve according to claim 1, wherein the water inlet and outlet assembly (10) comprises a water storage tank (1001) fixedly connected to a bottom frame body 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, a water inlet pipe frame (1003) matched 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 sealing box (2) close to the top end, a water outlet pipe frame (1004) communicated with one side of the open sealing box (2) close to the bottom and one side of the water storage tank (1001) close to the top end, and a water stop valve is arranged on the water outlet pipe frame (1004).
9. A regulating valve body tightness detection device according to claim 3, characterized in that the measurement assembly (11) comprises a sealing box (1101) fixedly connected to one end of the sleeve (402) and communicated with the sealing box, a pressure monitoring meter (1102) for detecting the internal air pressure of the sealing box (1101) is arranged on the sealing box (1101), two symmetrical brackets (1103) are fixedly connected between the outer wall of the bottom of the sealing box (1101) and the upper surface of the workbench (1), an exhaust pipe (1104) communicated with the inside of the sealing box is fixedly connected to the other side of the sealing box (1101), and a valve (1105) is arranged on the exhaust pipe (1104).
10. The device for detecting tightness of a valve body of a regulating valve according to claim 7, wherein the bubble positioning assembly (12) comprises two mounting frames (1201) which are fixedly connected to the opening sealing box (2) symmetrically, cameras (1202) are fixedly connected to two end positions of the upper surface of each mounting frame (1201), annular T grooves (1203) are formed in the outer circumferential walls of the first sealing clamp (303) and the second sealing clamp (403), T-shaped sliding blocks (1204) are slidably connected to the two annular T grooves (1203), and pointers (1205) are fixedly connected to the plurality of T-shaped sliding blocks (1204).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202511165408.9A CN120800684A (en) | 2025-08-20 | 2025-08-20 | Valve body tightness detection equipment of regulating valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202511165408.9A CN120800684A (en) | 2025-08-20 | 2025-08-20 | Valve body tightness detection equipment of regulating valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121048850A (en) * | 2025-10-30 | 2025-12-02 | 江苏日盈电子股份有限公司 | An airtightness testing device and method for energy storage pipes |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121048850A (en) * | 2025-10-30 | 2025-12-02 | 江苏日盈电子股份有限公司 | An airtightness testing device and method for energy storage pipes |
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