Stop valve leak detection tool
By designing a leak detection tool for globe valves and using automated components and hydrogen sensors for detection, the problems of low efficiency and poor accuracy of traditional manual leak detection have been solved, and fast and accurate detection of globe valves has been achieved.
Patent Information
- Application Number
- CN202511122794.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-12
- Publication Date
- 2025-10-17
AI Technical Summary
Traditional stop valve leak detection methods rely on manual operation, with low detection efficiency and difficult to guarantee accuracy. They cannot meet the needs of large-scale production and are easily affected by human factors.
A leak detection tooling for globe valves was designed, which included a base, an alternating inspection component, a valve positioning component, a sealing component, a detection gas delivery component and a leak detection component. Automatic operation was achieved through a motor and an electric push rod, and leaks were detected using a hydrogen sensor.
It realizes automatic and rapid leak detection of stop valves, is convenient and labor-saving to operate, and has high accuracy of detection results, which meets the needs of large-scale production.
Smart Images
Figure CN120800679A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of detection, in particular to a stop valve leak detection tool. BACKGROUND
[0002] In industrial production, stop valves are widely used in various pipeline systems as an important fluid control device for controlling the on-off and flow regulation of fluids. The sealing performance of the stop valve is directly related to the safety and reliability of the system, so strict leak detection testing of the stop valve is a key link to ensure its quality. The traditional stop valve leak detection method mainly relies on manual operation, by filling a certain pressure of gas into the inside of the stop valve, and then using soap water or special leak detection instrument for surface detection to judge whether there is leakage. However, this method has many limitations, not only the detection efficiency is low, but also it is difficult to ensure the accuracy and consistency of the test results, and is easily affected by human factors.
[0003] Although the existing stop valve leak detection technology has improved the detection efficiency to some extent, it still has some obvious defects. On the one hand, the traditional manual leak detection method cannot realize automatic operation, the detection process is tedious and time-consuming, and it is difficult to meet the needs of large-scale production. On the other hand, the accuracy of manual detection is difficult to guarantee, and it is easy to produce misjudgment due to the experience and skill difference of the operators.
[0004] Therefore, a stop valve leak detection tool is proposed. SUMMARY
[0005] The purpose of the present application is to solve the problems mentioned in the background art, and the present application provides a stop valve leak detection tool.
[0006] In order to achieve the above purpose, the present application specifically adopts the following technical scheme: A stop valve leak detection tool, comprising a base, an alternating detection assembly is installed inside the base, two support plates are arranged above the alternating detection assembly, a stop valve body is placed on the top of the support plate, a valve positioning assembly for limiting the stop valve body is arranged on the surface of the support plate, a sealing assembly for closing the two ends of the stop valve body is arranged on the right side of the base, and a detection gas delivery assembly and a leak detection assembly are also arranged on the right side of the base.
[0007] Further, the alternating inspection assembly comprises a first motor, and the first motor is fixedly installed on the inner wall of the base, the output end of the first motor is fixedly connected with a first threaded rod, the surface of the first threaded rod is threadedly connected with a first support frame, the top surface of the first support frame is fixedly connected with one of the support plates, the top surface of the first motor is provided with a first sliding groove, and the inner wall of the first sliding groove is slidably connected with the surface of the first support frame, the inner wall of the base is fixedly installed with a second motor, the output end of the second motor is fixedly connected with a second threaded rod, the surface of the second threaded rod is threadedly connected with a second support frame, the front surface and the back surface of the base are provided with a second sliding groove, and the inner wall of the second sliding groove is slidably connected with the surface of the second support frame, the top end of the second support frame is provided with a mounting groove, the inner wall of the mounting groove is fixedly installed with a third electric push rod, and the telescopic end of the third electric push rod is fixedly connected with a first connecting rod, and the bottom surface of the first connecting rod is fixedly connected with the other support plate.
[0008] Further, the valve positioning assembly comprises a positioning seat, and the positioning seat is fixedly connected with the top surface of the support plate, and the valve body is placed in the inside of the positioning seat, the surface of the positioning seat is fixedly installed with a first electric push rod, the telescopic end of the first electric push rod is fixedly connected with a second connecting rod, and the end of the second connecting rod is fixedly connected with a pressing block, and the bottom surface of the pressing block is attached to the surface of the valve body.
[0009] Further, the sealing assembly comprises a mounting shell, the front surface of the mounting shell is fixedly installed with a third motor, the output end of the third motor is fixedly connected with a double-head screw rod, the surface of the double-head screw rod is threadedly connected with two third connecting rods, the end of each of the two third connecting rods is fixedly connected with a sealing end block, the inner wall of the sealing end block is fixedly connected with a sealing ring, the sealing ring is attached to the end of the valve body, the top surface of the mounting shell is provided with a third sliding groove, and the inner wall of the third sliding groove is slidably connected with the surface of the third connecting rod.
[0010] Further, the detection gas conveying assembly comprises a premix gas tank, the surface of the premix gas tank is fixedly installed with a control valve, the output end of the control valve is fixedly connected with a connecting hose, and the connecting hose is fixedly connected with the front sealing end block.
[0011] Further, the leak detection assembly comprises a mounting frame, the surface of the mounting frame is fixedly installed with a second electric push rod, the telescopic end of the second electric push rod is fixedly connected with a supporting rod, the supporting rod is slidably connected with the mounting frame, the end of the supporting rod is fixedly connected with a collecting cover, and the inner wall of the collecting cover is fixedly installed with a hydrogen sensor.
[0012] The beneficial effects of the present application are as follows: The cut-off valve body is placed on the surface of the valve positioning assembly, the cut-off valve body is fixed through the valve positioning assembly, then the support plate is driven to move through the alternate inspection assembly, the cut-off valve body is moved to the rightmost side, the two ends of the cut-off valve body are positioned and sealed through the sealing assembly, then mixed gas is conveyed to the inside of the cut-off valve body through the detection gas conveying assembly, after the conveying is completed, the leakage detection assembly is operated, whether the surface of the cut-off valve body exists gas leakage can be detected, the cut-off valve is automatically and quickly detected, the operation is more convenient and saves labor, and the accuracy of the detection result can be guaranteed. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is a three-dimensional structure schematic diagram of the present application; Figure 2 is a base structure bottom section view of the present application; Figure 3 is a valve positioning assembly structure schematic diagram of the present application; Figure 4 is a second support frame structure side section view of the present application; Figure 5 is a sealing assembly structure right section view of the present application; Figure 6 is a detection gas conveying assembly structure schematic diagram of the present application; Figure 7 is a leakage detection assembly structure side section view of the present application; Fig. 1 is a base; 2, alternate inspection assembly; 201, first motor; 202, first threaded rod; 203, first support frame; 204, first sliding groove; 205, second motor; 206, second threaded rod; 207, second support frame; 208, mounting groove; 209, third electric push rod; 210, first connecting rod; 211, second sliding groove; 3, support plate; 4, cut-off valve body; 5, valve positioning assembly; 501, positioning seat; 502, first electric push rod; 503, second connecting rod; 504, pressing block; 6, sealing assembly; 601, mounting shell; 602, third motor; 603, double-headed screw; 604, third connecting rod; 605, sealing end block; 606, third sliding groove; 607, sealing ring; 7, detection gas conveying assembly; 701, premixed gas tank; 702, control valve; 703, connecting hose; 8, leakage detection assembly; 801, mounting frame; 802, second electric push rod; 803, support rod; 804, collection cover; 805, hydrogen sensor. DETAILED DESCRIPTION
[0014] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.
[0015] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application.
[0016] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second" and the like are only used to distinguish description, and cannot be understood as indicating or implying relative importance.
[0017] The electrical elements appearing in the text are all connected with the main controller and 220V mains from the outside, and the main controller can be a conventional known device such as a computer for control.
[0018] In the description of the embodiments of the present application, it should be noted that the positions or location relationships indicated by the terms "inner", "outer", "upper" and the like are based on the positions or location relationships shown in the drawings, or the positions or location relationships commonly placed when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular position, be constructed and operated in a particular position, and therefore cannot be understood as limiting the present application.
[0019] As Figures 1 to 7As shown, a leak detection tool for stop valve includes a base 1, the inside of the base 1 is provided with an alternate detection assembly 2, the alternate detection assembly 2 includes a first motor 201, and the first motor 201 is fixedly installed on the inner wall right side of the base 1, the output end of the first motor 201 is fixedly connected with a first threaded rod 202, the surface of the first threaded rod 202 is threadedly connected with a first support frame 203, and the top surface of the first support frame 203 is fixedly connected with one of the support plates 3, the top surface of the first motor 201 is provided with a first sliding groove 204, and the inner wall of the first sliding groove 204 is slidably connected with the surface of the first support frame 203, the inner wall of the base 1 is fixedly installed with a second motor 205, the output end of the second motor 205 is fixedly connected with a second threaded rod 206, the surface of the second threaded rod 206 is threadedly connected with a second support frame 207, the front and back of the base 1 are provided with a second sliding groove 211, and the inner wall of the second sliding groove 211 is slidably connected with the surface of the second support frame 207, the top end of the second support frame 207 is provided with a mounting groove 208, the inner wall of the mounting groove 208 is fixedly installed with a third electric push rod 209, the telescopic end of the third electric push rod 209 is fixedly connected with a first connecting rod 210, and the bottom surface of the first connecting rod 210 is fixedly connected with the other support plate 3. It should be noted that by operating the first motor 201, the first threaded rod 202 can be driven to rotate, thereby driving the first support frame 203 to slide along the inner wall of the first sliding groove 204, that is, one support plate 3 can be driven to move, at the same time, the second motor 205 drives the second threaded rod 206 to rotate, thereby driving the second support frame 207 to slide along the inner wall of the second sliding groove 211, so as to control the other support plate 3 to move, when the two support plates 3 are close to each other, the third electric push rod 209 can drive the first connecting rod 210 to move upward, thereby pushing the support plate 3 to rise, so that the other support plate 3 can pass below the support plate 3, thereby avoiding interference between the two.
[0020] The upper side of the alternate detection assembly 2 is provided with two support plates 3, the top of the support plate 3 is placed with a stop valve body 4, the surface of the support plate 3 is provided with a valve positioning assembly 5 for limiting the stop valve body 4, the valve positioning assembly 5 includes a positioning seat 501, and the positioning seat 501 is fixedly connected with the top surface of the support plate 3, and the stop valve body 4 is placed in the inside of the positioning seat 501, the surface of the positioning seat 501 is fixedly installed with a first electric push rod 502, the telescopic end of the first electric push rod 502 is fixedly connected with a second connecting rod 503, the end of the second connecting rod 503 is fixedly connected with a pressing block 504, and the bottom surface of the pressing block 504 is in close contact with the surface of the stop valve body 4. More specifically, the stop valve body 4 is placed in the inside of the positioning seat 501, by operating the first electric push rod 502, the second connecting rod 503 and the pressing block 504 can be pulled to move downward until the pressing block 504 touches and presses the surface of the stop valve body 4, thereby fixing the stop valve body 4.
[0021] The right side of the base 1 is provided with a sealing assembly 6 for closing both ends of the stop valve body 4, the sealing assembly 6 comprises a mounting shell 601, the front surface of the mounting shell 601 is fixedly installed with a third motor 602, the output end of the third motor 602 is fixedly connected with a double-head screw rod 603, the surface of the double-head screw rod 603 is threadedly connected with two third connecting rods 604, the end portions of the two third connecting rods 604 are fixedly connected with sealing end blocks 605, the inner wall of the sealing end block 605 is fixedly connected with a sealing ring 607, and the sealing ring 607 is attached to the end portion of the stop valve body 4, the top surface of the mounting shell 601 is provided with a third sliding groove 606, and the inner wall of the third sliding groove 606 is in sliding connection with the surface of the third connecting rod 604. It should be noted that by operating the third motor 602, the double-head screw rod 603 is driven to rotate, and under the action of the threads on the surface thereof, the third connecting rod 604 can be driven to slide along the inner wall of the third sliding groove 606, thereby controlling the movement of the sealing end block 605, so that the sealing end block 605 is in contact pressure with both ends of the stop valve body 4, and the end portion of the stop valve body 4 is effectively sealed by the sealing ring 607.
[0022] The right side of the base 1 is also provided with a detection gas delivery assembly 7 and a leak detection assembly 8. The detection gas delivery assembly 7 comprises a premixed gas tank 701, the surface of the premixed gas tank 701 is fixedly installed with a control valve 702, the output end of the control valve 702 is fixedly connected with a connecting hose 703, and the connecting hose 703 is fixedly connected with the front sealing end block 605. More specifically, the mixed gas is stored in the premixed gas tank 701, and when the control valve 702 is opened, the mixed gas can be delivered, so that the gas enters the inside of the stop valve body 4.
[0023] The leak detection assembly 8 comprises a mounting bracket 801, the surface of the mounting bracket 801 is fixedly installed with a second electric push rod 802, the telescopic end of the second electric push rod 802 is fixedly connected with a support rod 803, and the support rod 803 is in sliding connection with the mounting bracket 801, the end portion of the support rod 803 is fixedly connected with a collection cover 804, and the inner wall of the collection cover 804 is fixedly installed with a hydrogen gas sensor 805. It should be noted that when the second electric push rod 802 operates, the support rod 803 can be driven to slide downward along the surface of the mounting bracket 801, and the support rod 803 will drive the collection cover 804 and the hydrogen gas sensor 805 to move above the stop valve body 4, and by operating the hydrogen gas sensor 805, the leakage detection of whether there is hydrogen leakage near the stop valve body 4 can be performed.
[0024] In summary: the stop valve body 4 is placed on the surface of the valve positioning assembly 5, the stop valve body 4 is fixed through the valve positioning assembly 5, then the support plate 3 is driven to move through the alternate inspection assembly 2, the stop valve body 4 is moved to the rightmost side, the two ends of the stop valve body 4 are positioned and sealed through the sealing assembly 6, then the mixed gas is transported to the inside of the stop valve body 4 through the detection gas conveying assembly 7, after the transportation is completed, the leakage detection assembly 8 is operated, whether the surface of the stop valve body 4 exists gas leakage can be detected, the effect that the stop valve is automatically and quickly detected is realized in use, it is more convenient and labor-saving to operate, and the accuracy of the detection result can be guaranteed.
[0025] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.
Claims
1. A leak detection tool for a stop valve, characterized in that: The invention comprises a base (1), wherein an alternating inspection component (2) is installed inside the base (1), two support plates (3) are arranged above the alternating inspection component (2), a stop valve body (4) is placed on the top of the support plates (3), a valve positioning component (5) for limiting the stop valve body (4) is arranged on the surface of the support plates (3), a sealing component (6) for sealing both ends of the stop valve body (4) is arranged on the right side of the base (1), and a detection gas delivery component (7) and a leak detection component (8) are also arranged on the right side of the base (1).
2. A leak detection tool for stop valves according to claim 1, characterized in that: The alternating inspection component (2) includes a first motor (201), and the first motor (201) is fixedly installed on the right side of the inner wall of the base (1), the output end of the first motor (201) is fixedly connected to a first threaded rod (202), the surface of the first threaded rod (202) is threadedly connected to a first support frame (203), and the top surface of the first support frame (203) is fixedly connected to one of the support plates (3), the top surface of the first motor (201) is provided with a first slide groove (204), and the inner wall of the first slide groove (204) is slidably connected to the surface of the first support frame (203), the inner wall of the base (1) is fixedly installed with a second motor (205), and the second motor ( The output end of the base (205) is fixedly connected to a second threaded rod (206), the surface of the second threaded rod (206) is threadedly connected to a second support frame (207), the front and back sides of the base (1) are both provided with a second slide groove (211), and the inner wall of the second slide groove (211) is slidably connected to the surface of the second support frame (207), the top of the second support frame (207) is provided with a mounting groove (208), the inner wall of the mounting groove (208) is fixedly installed with a third electric push rod (209), the telescopic end of the third electric push rod (209) is fixedly connected to a first connecting rod (210), and the first connecting rod (210) is fixedly connected to the bottom surface of another support plate (3).
3. A leak detection tool for stop valves according to claim 2, characterized in that: The valve positioning assembly (5) includes a positioning seat (501), and the positioning seat (501) is fixedly connected to the top surface of the support plate (3), and the stop valve body (4) is placed inside the positioning seat (501), and a first electric push rod (502) is fixedly installed on the surface of the positioning seat (501), the telescopic end of the first electric push rod (502) is fixedly connected to the second connecting rod (503), and the end of the second connecting rod (503) is fixedly connected to the pressure block (504), and the bottom surface of the pressure block (504) is in contact with the surface of the stop valve body (4).
4. A leak detection tool for stop valves according to claim 1, characterized in that: The sealing assembly (6) includes a mounting shell (601), a third motor (602) is fixedly mounted on the front of the mounting shell (601), an output end of the third motor (602) is fixedly connected to a double-headed screw (603), a surface of the double-headed screw (603) is threadedly connected to two third connecting rods (604), the ends of the two third connecting rods (604) are fixedly connected to a sealing end block (605), the inner wall of the sealing end block (605) is fixedly connected to a sealing ring (607), and the sealing ring (607) is fitted with the end of the stop valve body (4), a third sliding groove (606) is opened through the top surface of the mounting shell (601), and the inner wall of the third sliding groove (606) is slidably connected to the surface of the third connecting rod (604).
5. A leak detection tool for stop valves according to claim 4, characterized in that: The detection gas delivery assembly (7) comprises a premixed gas tank (701), a control valve (702) is fixedly mounted on the surface of the premixed gas tank (701), an output end of the control valve (702) is fixedly connected to a connecting hose (703), and the connecting hose (703) is fixedly connected to the sealing end block (605) on the front side.
6. A leak detection tool for stop valves according to claim 5, characterized in that: The leak detection assembly (8) comprises a mounting frame (801), a second electric push rod (802) is fixedly mounted on the surface of the mounting frame (801), a telescopic end of the second electric push rod (802) is fixedly connected to a support rod (803), and the support rod (803) is slidably connected to the mounting frame (801), an end of the support rod (803) is fixedly connected to a collection cover (804), and a hydrogen sensor (805) is fixedly mounted on the inner wall of the collection cover (804).