Valve with leakage detection function

Abstract

The invention relates to the technical field of valve detection, in particular to a valve with a leakage detection function, which comprises a valve body, the two sides of the valve body are respectively connected with the end parts of an input pipe and an output pipe, a valve core is rotatably sealed in the valve body, a through hole is formed in the middle of the valve core in a penetrating manner, and a detection hole is formed in the bottom of the through hole in a penetrating manner; the bottom of the valve body is in threaded connection with the input end of the pressure gauge through a detection pipe, a second valve element is rotationally sealed in the detection pipe, a second detection hole of the second valve element is perpendicular to the detection hole, and the valve body is in threaded connection with the input end of the pressure gauge through the detection pipe. And the accuracy of detecting the pressure in the pipeline structure by the pressure gauge is also improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of valve detection, in particular to a valve with leakage detection function. BACKGROUND

[0002] The valve is a mechanical device for controlling the flow of fluid (liquid, gas, slurry, etc.), and the flow, pressure or flow direction is controlled by opening, closing or adjusting the flow passage section. However, the existing valve can only perform the above simple control on the pipe structure where it is located, and cannot detect whether the pipe structure has leakage. SUMMARY

[0003] The present application provides a valve with leakage detection function to solve the problems in the background art.

[0004] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: a valve with leakage detection function, comprising: a valve body, the two sides of the valve body are respectively connected with the end of the input pipe and the output pipe, a valve core is rotationally sealed in the valve body, a through hole is formed in the middle of the valve core, a detection hole is formed in the bottom of the through hole, the bottom of the valve body is threadedly connected with the input end of a pressure gauge through a detection pipe, a valve core two is rotationally sealed in the detection pipe, and the detection hole two of the valve core two is vertically arranged with the detection hole.

[0005] Preferably, a valve stem is rotationally sealed on the valve body, the bottom end of the valve stem is connected with the valve core, and the end of the valve stem that penetrates out of the valve body is connected with a hand wheel.

[0006] Preferably, the end of the valve core two is connected with a rotating shaft, the rotating shaft is rotationally sealed with the detection pipe, the end of the rotating shaft that is arranged on the side wall outside the detection pipe is connected with a pointer, the pointer is arranged in parallel with the axis of the detection hole two, and the other end of the pointer is arranged towards an indicator disc on the detection pipe.

[0007] Preferably, a spiral pipe is rotationally connected to the side wall of the detection pipe, the bottom of the spiral pipe is threadedly connected with the top of a spiral pipe two, a plurality of sliding blocks are connected to the inner wall of the spiral pipe two, the sliding blocks are in sliding sealing cooperation with the longitudinal sliding grooves of the side wall of the detection pipe, the spiral pipe two is in sliding sealing cooperation with the detection pipe, the top of a hollow rubber ring is connected to the bottom of the spiral pipe two, a plurality of air guide holes are formed in the bottom wall of the hollow rubber ring, the top ends of the air guide holes are formed in the inner wall of the spiral pipe two and are arranged towards the longitudinal sliding grooves, a plurality of air guide holes two are formed in the bottom of the sliding blocks, one-way valves are connected in the air guide holes two, the top of the air guide holes two is arranged below the top wall of the longitudinal sliding grooves, and the inner wall of the hollow rubber ring is in contact with the side wall of the input end of the pressure gauge.

[0008] Preferably, the hollow rubber ring is connected with the end of the pressure relief pipe, the other end of the pressure relief pipe is arranged away from the hollow rubber ring, a rod body is slidingly sealed in the pressure relief pipe, a horizontal groove is opened at the top of the rod body, one inner wall of the horizontal groove is arranged in the pressure relief pipe, and the other inner wall of the horizontal groove is arranged away from the other end of the pressure relief pipe.

[0009] Preferably, the end of the rod body away from the pressure relief pipe is connected with the end of the spring through a mounting disc, and the other end of the spring is connected with the other end of the pressure relief pipe.

[0010] Preferably, one side of the valve body is connected with the end of the connecting pipe, the other side of the valve body is connected with the end of the connecting pipe two, one flange disc is arranged on the side wall of the connecting pipe and the other end of the connecting pipe two respectively, the flange disc is in contact with the flange disc two, and one flange disc two is arranged on the side wall of the end of the input pipe and the output pipe respectively.

[0011] Preferably, the flange disc two is threadedly connected with the flange disc through a bolt, the end of the bolt is arranged towards the valve body and is in plug-in connection with the air pressure piece.

[0012] Preferably, the air pressure piece comprises an annular groove, the end face of the flange disc is provided with the annular groove, the annular groove and the annular groove on the end face of the flange disc two are oppositely arranged to form an annular cavity, a hollow rubber ring two is plugged into the annular cavity, the inner wall of the hollow rubber ring two is connected with the bottom end of a plurality of air guide pipes, and the other end of the air guide pipe is connected to the inner wall of the sleeve.

[0013] Preferably, the opening end of the sleeve is connected with the end face of the flange disc towards the valve body, each sleeve is in plug-in connection with the end of a bolt, the end of the bolt is in contact with the end face of the piston, the piston is in sliding sealing connection with the sleeve, the other end of the piston is connected with the end inner wall of the sleeve through a spring two, and the other end of the air guide pipe is arranged towards the spring two.

[0014] The beneficial effects of the present application are as follows:

[0015] In the scheme of the present application:

[0016] The valve body is threadedly connected with the input end of the pressure gauge through the detection pipe, not only the difficulty of connection of the pressure detection device is reduced, but also the accuracy of the pressure gauge for detecting the pressure in the pipeline structure is increased. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the present application;

[0018] Figure 2 It is a sectional view of the main structure of the present application;

[0019] Figure 3 It is a schematic diagram of the connection relationship between the rotating shaft and the pointer of the present application;

[0020] Figure 4Schematic diagram of the connection relationship between the screw pipe and the worm ring of the application;

[0021] Figure 5 Schematic diagram of the cross-sectional view of the detection pipe of the application;

[0022] Figure 6 Schematic diagram of the transverse slot structure of the application;

[0023] Figure 7 Schematic diagram of the flange plate structure of the application;

[0024] Figure 8 Schematic diagram of the connection relationship between the hollow rubber ring two and the air guide pipe of the application;

[0025] Figure 9 Schematic diagram of the sleeve pipe of the application;

[0026] Figure 10 Schematic diagram of the opening position of the upper inclined surface of the sleeve ring of the application;

[0027] Figure 11 Schematic diagram of the double screw structure of the application;

[0028] Figure 12 Schematic diagram of the meshing connection relationship between the rack two and the gear ring of the application;

[0029] Figure 13 Schematic diagram of the rotating connection relationship between the valve body and the bearing pipe of the application;

[0030] Figure 14 Schematic diagram of the cross-sectional view of the bearing pipe of the application;

[0031] Figure 15 Schematic diagram of the connection relationship between the pressure ball and the spring four of the application.

[0032] Wherein: valve body 1, valve core 2, detection hole 3, detection tube 4, pressure gauge 5, valve core two 6, input pipe 7, output pipe 8, detection hole two 9, valve rod 10, hand wheel 11, rotating shaft 12, pointer 13, indicating disc 14, solenoid 15, solenoid two 16, slider 17, longitudinal sliding groove 18, hollow rubber ring 19, air guide hole 20, pressure relief pipe 21, rod body 22, horizontal groove 23, mounting disc 24, spring 25, connecting pipe 26, connecting pipe two 27, flange plate 28, bolt 29, air pressure piece 30, sleeve 31, annular groove 32, hollow rubber ring two 33, air guide pipe 34, piston 35, spring two 36, sealing element 37, collar 38, driving element 39, sealing ring 40, sealing ring two 41, adapter pipe 42, inclined surface 43, pressure sheet 44, double screw 45, worm 46, worm wheel ring 47, gear 48, rack 49, rack two 50, gear ring 51, mounting ring 52, bearing pipe 53, spring three 54, grip rod 55, horizontal through groove 56, rotating pipe 57, pressure hole 58, round corner 59, pressure ball 60, guide hole 61, spring four 62, L-shaped plug rod 63, plug hole 64, rotating shaft two 65, air guide hole two 66, guide ring 67. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present application will be described hereinafter with reference to the accompanying drawings, in which, it should be understood that the preferred embodiments described herein are intended for the purpose of explanation only and are not intended to limit the present application.

[0034] Embodiment one: reference Figures 1-15 A valve with leakage detection function, comprising: valve body 1, the end of the input pipe 7 and the output pipe 8 is connected with the both sides of the valve body 1 respectively, the valve core 2 is rotationally sealed in the valve body 1, the through hole is opened in the middle of the valve core 2, the detection hole 3 is opened in the bottom of the through hole, the input end of the pressure gauge 5 is threadedly connected with the bottom of the valve body 1 through the detection tube 4, the valve core two 6 is rotationally sealed in the detection tube 4, and the detection hole two 9 of the valve core two 6 is vertically arranged with the detection hole 3.

[0035] The principle of the above scheme is:

[0036] The valve body 1 can control the opening and closing of the pipeline when the gas or liquid, referred to as fluid, is transported. When the device is working normally, the valve core 2 in the valve body 1 is rotated to adjust the horizontal through hole to open the input pipe 7 and the output pipe 8, so as to realize the transportation of the fluid. When the device works for a period of time and needs to be sealed, the input pipe 7 and the output pipe 8 are opened by the valve core 2, and the entire pipeline structure is filled with fluid through the fluid source connected with the input pipe 7. After a certain period of time, the fluid source is closed and the output end of the output pipe 8 is closed. Then the valve core 2 in the detection pipe 4 is rotated to make the detection hole 9 and the detection hole 3 open. The pressure of the pipeline structure is detected by the pressure gauge 5. If the value of the pressure gauge 5 decreases after a period of observation, the pipeline structure has poor air tightness. If it remains unchanged, the air tightness is good.

[0037] The beneficial effects of the above scheme are:

[0038] The valve body 1 is threadedly connected with the input end of the pressure gauge 5 through the detection pipe 4, which not only reduces the connection difficulty of the pressure detection device, but also increases the accuracy of the pressure gauge 5 for detecting the pressure in the pipeline structure.

[0039] The detection hole 3 can directly transmit the pressure of the fluid in the through hole to the pressure gauge 5 through the detection hole 9, so that the detection result is more accurate and intuitive.

[0040] The valve core 2 can be opened when the air tightness of the pipeline needs to be detected, and closed when working normally. In order to improve the accuracy of detecting the sealing of the pipeline structure, a pressure gauge 5 with smaller range can be used. In order to prevent the pressure gauge 5 from being damaged during detection, the opening area of the detection hole 9 and the detection hole 3 can be controlled based on the actual situation, so as to protect the pressure gauge 5 during detection, and further improve the practicability of the device.

[0041] Embodiment two: refer to Figures 1-15 The valve body 1 is rotatably connected with the valve stem 10, the bottom end of the valve stem 10 is connected with the valve core 2, and the end of the valve stem 10 that penetrates out of the valve body 1 is connected with the hand wheel 11.

[0042] The principle and beneficial effects of the above scheme are:

[0043] When the valve core 2 needs to be opened or closed, the hand wheel 11 is rotated forward or reversely. The hand wheel 11 drives the valve core 2 to rotate forward or reversely in the valve body 1 through the valve stem 10.

[0044] Embodiment three: refer to Figures 1-15The end of the rotating shaft 12 is connected with the valve core two 6, the rotating shaft 12 is in rotating sealing connection with the detection tube 4, the end of the pointer 13 is connected with the side wall outside the detection tube 4, the pointer 13 is arranged in parallel with the axis of the detection hole two 9, and the other end of the pointer 13 is arranged towards the indicating disc 14 on the detection tube 4.

[0045] The indicating disc 14 is provided with a plurality of scale lines.

[0046] The principle and beneficial effects of the above scheme are:

[0047] When the valve core two 6 rotates, the rotating shaft 12 is driven to rotate, the rotating shaft 12 drives the pointer 13 to rotate, the pointer 13 is arranged in parallel with the axis of the detection hole two 9, so that the opening degree of the detection hole two 9 can be judged by observing the position of the scale line pointed by the pointer 13 on the indicating disc 14, and the damage of the pressure gauge 5 caused by the too large instantaneous pressure during the pressure detection is avoided.

[0048] Embodiment four: Figures 1-15 The detection tube 4 is provided with a detection hole one 8, the detection hole one 8 is arranged on the side wall of the detection tube 4, the detection hole one 8 is arranged in parallel with the axis of the detection hole two 9, and the detection hole one 8 is arranged on the side wall of the detection tube 4, the detection hole one 8 is arranged in parallel with the axis of the detection hole two 9, and the other end of the detection hole one 8 is arranged towards the indicating disc 14 on the detection tube 4.

[0049] The end of the hollow rubber ring 19 is connected with the detection tube 4, the other end of the hollow rubber ring 19 is arranged away from the detection tube 4, the hollow rubber ring 19 is in sliding sealing contact with the side wall of the input end of the pressure gauge 5.

[0050] The end of the rod body 22 away from the pressure relief pipe 21 is connected with the end of the spring 25 through the mounting disc 24, and the other end of the spring 25 is connected with the other end of the pressure relief pipe 21.

[0051] The principle and beneficial effects of the above scheme are:

[0052] After the threaded connection of the detection tube 4 and the pressure gauge 5 is completed, the screw pipe 15 is rotated, the screw pipe two 16 threaded with the screw pipe 15 is lowered in height through the sliding cooperation of the sliding block 17 and the longitudinal sliding groove 18, the sliding block 17 is lowered synchronously, and the air between the bottom of the sliding block 17 and the bottom of the longitudinal sliding groove 18 is input into the air guide hole 20, thereby inflating the hollow rubber ring 19. After the inflation volume of the hollow rubber ring 19 is expanded, the hollow rubber ring 19 seals between the input end of the detection tube 4 and the pressure gauge 5, which can reduce the difficulty of sealing of the pressure gauge 5 when connected, can avoid the use of raw material belts or other sealing articles when the pressure gauge 5 is connected with the detection tube 4, and thereby reduce the cleaning difficulty of the detection tube 4 after the connection with the pressure gauge 5 is completed. When the height of the sliding block 17 is lowered, the one-way valve in the air guide hole two 66 is in a closed state, so that the air between the bottom of the sliding block 17 and the bottom wall of the longitudinal sliding groove 18 can be squeezed into the air guide hole 20, so as to complete the inflation of the hollow rubber ring 19.

[0053] When it is necessary to end the connection of the detection tube 4 and the input end of the pressure gauge 5, the mounting disc 24 is pressed, the spring 25 is compressed, and the rod body 22 is moved to the inside of the hollow rubber ring 19 under the guidance of the pressure relief pipe 21. When the horizontal groove 23 is arranged inside the hollow rubber ring 19 with one inner wall and outside the hollow rubber ring 19 with the other inner wall, the air inside the hollow rubber ring 19 is discharged, the volume of the hollow rubber ring 19 is reduced, the sealing of the hollow rubber ring 19 between the detection tube 4 and the pressure gauge 5 is ended, the screw pipe 15 is reversely rotated, the height of the screw pipe two 16 and the sliding block 17 is raised, at this time, the one-way valve in the sliding block 17 is opened, the air between the bottom of the sliding block 17 and the bottom wall of the longitudinal sliding groove 18 is inflated, so as to avoid that the height of the screw pipe two 16 cannot be raised due to the excessively low air pressure.

[0054] The inner wall of the screw pipe 15 is rotationally connected with the side wall of the detection tube 4, in order to ensure that the air is inflated to the bottom of the sliding block 17 through the air guide hole two 66 when the height of the screw pipe two 16 is raised, the guide ring 67 connected with the inner wall of the screw pipe 15 can be reduced, the guide ring 67 is rotationally connected with the side wall of the detection tube 4, and a plurality of air holes are arranged on the top of the guide ring and penetrate the guide ring, the air holes are arranged between the detection tube 4 and the screw pipe 15, and the air is inflated to the bottom of the sliding block 17 through the air guide hole two 66 when the height of the screw pipe two 16 is raised, thereby improving the rationality of the device in operation.

[0055] Example five: refer to Figures 1-15 The valve body 1 is connected with the end of the connecting pipe 26 on one side, and the valve body 1 is connected with the end of the connecting pipe two 27 on the other side. The other end side wall of the connecting pipe 26 and the other end side wall of the connecting pipe two 27 are respectively connected with a flange plate 28, the flange plate 28 is in contact with the flange plate two, and the end side wall of the input pipe 7 and the end side wall of the output pipe 8 are respectively connected with a flange plate two.

[0056] The flange plate two is threadedly connected with the flange plate 28 through the bolts 29, the end of the bolt 29 is arranged towards the valve body 1, and is in plug-in cooperation with the pneumatic element 30.

[0057] The principle and beneficial effects of the above scheme are:

[0058] The end of the connecting pipe two 27 is connected with the two sides of the valve body 1 respectively, so as to connect the input pipe 7 and the output pipe 8 respectively, when the flange plate two is connected with the input pipe 7 and the output pipe 8 respectively, the flange plate two is in contact with the flange plate 28, and the flange plate two is fixed through the thread connection of the flange plate 28 and the bolts 29.

[0059] Embodiment six: refer to Figures 1-15 The pneumatic element 30 comprises an annular groove 32, the end surface of the flange plate 28 is provided with the annular groove 32, the annular groove 32 and the annular groove of the end surface of the flange plate two are oppositely arranged to form an annular cavity, the hollow rubber ring two 33 is inserted into the annular cavity, the inner wall of the hollow rubber ring two 33 is connected with the bottom end of the plurality of gas guide pipes 34, and the other end of the gas guide pipe 34 is connected to the inner wall of the sleeve pipe 31.

[0060] The open end of the sleeve pipe 31 is connected with the end surface of the flange plate 28 towards the valve body 1, each sleeve pipe 31 is in plug-in cooperation with the end of the bolt 29, the end of the bolt 29 is in contact with the end surface of the piston 35, the piston 35 is in sliding sealing cooperation with the sleeve pipe 31, the other end of the piston 35 is connected with the end inner wall of the sleeve pipe 31 through the spring two 36, and the other end of the gas guide pipe 34 is arranged towards the spring two 36.

[0061] The principle and beneficial effects of the above scheme are:

[0062] The end surface of the flange plate 28 is provided with an annular groove 32, and the annular groove 32 is arranged opposite to the annular groove of the two end surfaces of the flange plate to form an annular cavity. In order to improve the sealing effect of the connection between the second flange plate and the flange plate 28, the hollow rubber ring 33 is inserted into the annular cavity. During the connection of the flange plate and the flange plate 28 by the bolt 29, the end of the bolt 29 is inserted into the sleeve 31. With the rotation of the bolt 29, the length of the end of the bolt 29 inserted into the sleeve 31 is longer. The sleeve 31 can protect the end of the bolt 29 from external dust accumulation and prevent moisture in the air from rusting the end of the bolt 29. During the movement of the end of the bolt 29 in the sleeve 31, the end of the sleeve 31 pushes the piston 35 to move in the direction of the valve body 1, and the spring 36 is compressed. The air between the piston 35 and the inner wall of the sleeve 31 can enter the hollow rubber ring 33 through the air guide pipe 34. With the expansion of the volume of the hollow rubber ring 33, its structure fills the annular cavity, thereby improving the sealing effect between the second flange plate and the flange plate 28. Therefore, when detecting the sealing performance of the pipeline structure, the poor sealing performance between the device and the pipeline structure can be avoided, and the phenomenon of leakage point in the pipeline structure can be directly determined.

[0063] When the connection between the second flange plate and the flange plate 28 is completed, the bolt 29 is rotated in the opposite direction, and the end of the bolt 29 is moved out of the sleeve 31. At the same time, under the elastic force of the spring 36, the piston 35 moves away from the valve body 1, and the air in the hollow rubber ring 33 is sucked back into the inside of the sleeve 31. Therefore, when the device is disassembled, the volume of the hollow rubber ring 33 is reduced, which can avoid the difficulty in disassembling the second flange plate and the flange plate 28, and the reduced volume of the hollow rubber ring 33 reduces the probability of contact with surrounding objects, thereby reducing the opportunity of damage to the hollow rubber ring 33 by sharp objects.

[0064] The inside of the hollow rubber ring 33 can be filled with gas or liquid according to actual conditions, so it has strong applicability.

[0065] Example Seven: Reference Figures 1-15Further comprising: a sealing member 37, the sealing member 37 comprises: a sleeve 38, the connecting pipe 26 and the other end of the connecting pipe two 27 are slidably connected with a sleeve 38 respectively, the bottom of the sleeve 38 is connected with a driving member 39, the inner wall of one end of the sleeve 38 is connected with a sealing ring 40, the inner wall of the other end of the sleeve 38 is connected with a sealing ring two 41, the other end of the connecting pipe 26 and the other end of the connecting pipe two 27 are slidably sealed with a sealing ring two 41 respectively, the side wall of the end of the input pipe 7 and the output pipe 8 is slidably sealed with a sealing ring 40 respectively, the inner wall of the end of the input pipe 7 and the output pipe 8 is insertedly connected with a side wall of an adapter pipe 42 respectively, the end of the connecting pipe 26 and the connecting pipe two 27 is connected with an end of an adapter pipe 42 respectively, the inner wall of the sleeve 38 is provided with an inclined surface 43, the inclined surface 43 is arranged towards the valve body 1 and is in contact with the end of a plurality of pressure pieces 44, the side wall of the input pipe 7 and the output pipe 8 is in contact with a plurality of pressure pieces 44, the other end of the connecting pipe 26 and the connecting pipe two 27 is connected with the other end of a plurality of pressure pieces 44, the inclined surface 43 and the pressure piece 44 are arranged between the sealing ring 40 and the sealing ring two 41.

[0066] The principle and beneficial effects of the above scheme are:

[0067] When the end of the input pipe 7 and the output pipe 8 is not connected with the flange plate two, an adapter pipe 42 is connected with the other end of the connecting pipe 26 and the connecting pipe two 27 respectively, one adapter pipe 42 is inserted in the input pipe 7, and the other adapter pipe 42 is inserted in the output pipe 8, then the driving member 39 is started to work, the driving member 39 drives the two sleeves 38 to move close to each other, the inclined surface 43 on the sleeve 38 moves towards the valve body 1 at the same time, then the end of the pressure piece 44 is pressed, the pressure piece 44 moves towards the axis of the input pipe 7 and the output pipe 8, then the end of the input pipe 7 and the output pipe 8 is clamped to prevent the two pipes from falling off, and the efficiency of connecting the input pipe 7 and the output pipe 8 on the device is improved, with the movement of the sleeve 38, the sealing ring 40 and the sealing ring two 41 move synchronously, then the end of the input pipe 7 and the output pipe 8 is sealed, avoiding the leakage of the pipeline structure during work, at the same time, avoiding the leakage caused by the loose connection of the input pipe 7 and the output pipe 8 during detection, and mistakenly thinking that there is a leakage point on the pipeline structure;

[0068] When the device needs to be overhauled, the driving member 39 is started again, the driving member 39 drives the two sleeves 38 to move away from each other, the pressure of the inclined surface 43 on the end of the pressure piece 44 is ended, then the input pipe 7 and the output pipe 8 can be quickly removed.

[0069] Embodiment eight: reference Figures 1-15The driving member 39 comprises a double screw 45, the connecting pipe 26 and the connecting pipe 27 are rotationally connected with the double screw 45, two threaded portions of the double screw 45 are respectively threadedly connected with a sleeve ring 38, a worm 46 connected with the double screw 45 is meshingly connected with a worm ring 47, the inner wall of the worm ring 47 is connected with the side wall of the screw pipe 15, a gear 48 connected with the double screw 45 is meshingly connected with a rack 49, the top of the rack 49 is connected with the bottom of a rack 50, the rack 50 is meshingly connected with a gear ring 51, the gear ring 51 is connected with a rotating member, and the top of the rack 50 is slidingly connected with the valve body 1.

[0070] The principle and beneficial effects of the above scheme are:

[0071] When the rotating member is started, the gear ring 51 is driven to rotate forward or reversely, the gear ring 51 drives the rack 50 meshingly connected therewith to move upward or downward, the rack 50 drives the rack 49 to move upward or downward, and then drives the gear 48 meshingly connected with the rack 49 to rotate forward or reversely, the gear 48 drives the double screw 45 to rotate forward or reversely, and then drives the two sleeve rings 38 to move close to or away from each other, since the worm 46 connected with the double screw 45 rotates forward or reversely synchronously, the worm ring 47 meshingly connected with the worm 46 rotates forward or reversely synchronously, and the worm ring 47 drives the screw pipe 16 to descend or ascend through the screw pipe 15, so that the device can seal the pressure gauge 5 on the detection pipe 4 while fixing and sealing the input pipe 7 and the output pipe 8.

[0072] Embodiment nine: Figures 1-15 The rotating member comprises a mounting ring 52, the valve body 1 is connected with the mounting ring 52, the valve body 1 is rotationally connected with the end of a bearing pipe 53, the top and the bottom of the bearing pipe 53 are respectively connected with the bottom end of a spring 54, the top of each spring 54 is connected with the bottom of a handle 55, the top of the handle 55 is insertedly connected with a horizontal through slot 56, a plurality of horizontal through slots 56 are circumferentially arranged on the inner wall of a rotating pipe 57, the side wall of the rotating pipe 57 is connected with the inner wall of the gear ring 51, the side wall of the rotating pipe 57 is rotationally connected with the inner wall of the mounting ring 52, a plurality of pressing holes 58 are circumferentially arranged on the side wall of the rotating pipe 57, a round corner 59 is arranged on the top inner wall of the pressing hole 58, the pressing hole 58 is insertedly connected with the bottom of a pressure ball 60, the pressure ball 60 is slidingly connected with a guide hole 61, a plurality of guide holes 61 are circumferentially arranged on the inner wall of the mounting ring 52, and the top of the pressure ball 60 is connected with the top wall of the guide hole 61 through a spring 62.

[0073] The principle and beneficial effects of the above scheme are:

[0074] The spring three 54 is used for fixing the holding rod 55 on the bearing tube 53, and when the driving gear ring 51 needs to be driven to rotate forward or reverse, the holding rod 55 can be rotated forward or reverse, under the plug-in cooperation of the horizontal through groove 56 and the rotary connection cooperation of the installation ring 52, the rotating tube 57 is rotated forward or reverse, the bearing tube 53 is synchronously rotated forward or reverse under the rotary cooperation of the valve body 1, because the side wall of the rotating tube 57 is provided with a plurality of pressing holes 58 in the circumferential array, when the rotating tube 57 is rotated forward or reverse, the moving pressing hole 58 can be temporarily plugged into the bottom of the pressure ball 60, when the rotation of the rotating tube 57 is completed, the pressure ball 60 moves in the guide hole 61 to the rotating tube 57 under the elastic force of the spring four 62, and is plugged into the pressing hole 58, to prevent the rotating tube 57 from rotating after being stationary, thereby avoiding the rotation of the gear ring 51, so that after the adjustment of the distance between the two sleeve rings 38 is completed, the rotation of the double screw rod 45 does not occur, thereby ensuring the stability of the sleeve ring 38 on the device, to avoid the loosening of the connection between the input pipe 7 and the output pipe 8 and the device and the internal fluid leakage phenomenon.

[0075] The fillet 59 provided in the top inner wall of the pressing hole 58 can avoid the pressure ball 60 from being unable to separate from the pressing hole 58 in which it is inserted, and when the rotating tube 57 rotates, the top inner wall of the pressing hole 58 will not excessively wear the pressure ball 60, thereby avoiding the phenomenon that the pressure ball 60 cannot be plugged into the pressing hole 58, and further ensuring the stability of the double screw rod 45 after the adjustment of the device is completed.

[0076] Embodiment ten: Figures 1-15 The end of the holding rod 55 is connected to the end of the long side of the L-shaped plug rod 63, the short side of the L-shaped plug rod 63 is in sliding cooperation with the bearing tube 53, the end of the short side of the L-shaped plug rod 63 is arranged in the bearing tube 53 and faces the plug hole 64, the two plug holes 64 are symmetrically arranged on the two side walls of the end of the rotating shaft two 65, the rotating shaft two 65 is in rotary sealing cooperation with the valve body 1, the other end of the rotating shaft two 65 arranged in the valve body 1 is connected to the valve core two 6, and the rotating shaft two 65 is symmetrically arranged on the two sides of the valve core two 6.

[0077] The principle and beneficial effects of the above scheme are:

[0078] When the valve core 6 needs to be rotated, the two handle bars 55 are pressed towards each other, the spring 54 is compressed, the end of the short side of the L-shaped plug rod 63 is inserted into the insertion hole 64, at this time, rotating the handle bar 55 in the positive direction or the reverse direction drives the rotation of the shaft 65 and the valve core 6 in the positive direction or the reverse direction, which not only adjusts the position of the valve core 6 to open or close the detection tube 4, but also adjusts the degree of opening of the valve core 6 and the detection tube 4. Based on the common knowledge, the valve core 6 is rotated and sealed in the inside of the detection tube 4, so a rubber ring for sealing is arranged on the valve core 6, or a rubber ring is arranged on the shaft 12 and the shaft 65 respectively, which increases the sealing performance of the detection tube 4. The rubber ring structure itself has friction, so after rotating the shaft 65, a positioning mechanism is not needed to temporarily fix the position of the valve core 6 in the detection tube 4. After the adjustment of the valve core 6 is finished, the handle bar 55 is released, under the elastic force of the spring 54, the handle bar 55 is inserted into the horizontal through slot 56, the handle bar 55 can not only rotate the rotating tube 57, but also rotate the shaft 65, which improves the practicability of the mechanism and reduces the complexity of the device.

[0079] Although the embodiments of the present application have been disclosed as above, it is not limited to the application listed in the specification and the embodiments, it can be fully applied to various fields suitable for the present application, and for those skilled in the art, other modifications can be easily realized, therefore, the present application is not limited to the specific details and the figures shown and described herein, without departing from the general concept defined by the claims and the equivalent scope.

Claims

1. A valve with a leak detection function, characterized in that: include: A valve body (1) is provided, wherein the ends of an input pipe (7) and an output pipe (8) are connected to both sides of the valve body (1), a valve core (2) is rotatably sealed in the valve body (1), a through hole is formed in the middle of the valve core (2), a detection hole (3) is formed in the bottom of the through hole, the bottom of the valve body (1) is threadedly connected to the input end of a pressure gauge (5) through a detection tube (4), a second valve core (6) is rotatably sealed in the detection tube (4), and a second detection hole (9) of the second valve core (6) is arranged perpendicular to the detection hole (3).

2. A valve with a leakage detection function according to claim 1, characterized in that: The valve body (1) is rotatably sealed with a valve stem (10), the bottom end of the valve stem (10) is connected to the valve core (2), and the end of the valve stem (10) extending outside the valve body (1) is connected to a hand wheel (11).

3. The valve with leakage detection function according to claim 1, characterized in that: The valve core (6) is connected to the end of a rotating shaft (12), and the rotating shaft (12) is rotatably sealed with the detection tube (4). The rotating shaft (12) is placed on the side wall outside the detection tube (4) and is connected to the end of a pointer (13). The pointer (13) is arranged parallel to the axis of the second detection hole (9), and the other end of the pointer (13) is arranged toward the indicator disk (14) on the detection tube (4).

4. A valve with a leakage detection function according to claim 3, characterized in that: The detection tube (4) is rotatably connected to the side wall of the detection tube (15), the bottom of the screw tube (15) is threadedly connected to the top of the second screw tube (16), and a plurality of sliders (17) are connected to the inner wall of the second screw tube (16). The sliders (17) are slidably sealed with the longitudinal slide grooves (18) on the side wall of the detection tube (4), and the second screw tube (16) is slidably sealed with the detection tube (4). The bottom of the second screw tube (16) is connected to the top of the hollow rubber ring (19), and the hollow rubber ring ( The top wall of the slide block (19) is provided with a plurality of bottom ends of air guide holes (20), the top ends of the air guide holes (20) are provided on the inner wall of the second screw tube (16) and are arranged toward the longitudinal slide groove (18), the bottom of the slide block (17) is provided with a second air guide hole (66), a one-way valve is connected to the second air guide hole (66), the top end of the second air guide hole (66) is provided below the top wall of the longitudinal slide groove (18), and the inner wall of the hollow rubber ring (19) contacts and cooperates with the side wall of the input end of the pressure gauge (5).

5. The valve with leakage detection function according to claim 4, characterized in that: The inner wall of the hollow rubber ring (19) is connected to the end of the pressure relief pipe (21), and the other end of the pressure relief pipe (21) is arranged away from the hollow rubber ring (19). A rod body (22) is slidingly sealed in the pressure relief pipe (21), and a transverse groove (23) is opened on the top of the rod body (22). One inner wall of the transverse groove (23) is arranged in the pressure relief pipe (21), and the other inner wall of the transverse groove (23) is arranged away from the other end of the pressure relief pipe (21).

6. The valve with leakage detection function according to claim 5, characterized in that: The end of the rod (22) away from the pressure relief pipe (21) is connected to the end of the spring (25) through the mounting plate (24), and the other end of the spring (25) is connected to the other end of the pressure relief pipe (21).

7. The valve with leakage detection function according to claim 2, characterized in that: One side of the valve body (1) is connected to the end of the connecting pipe (26), and the other side of the valve body (1) is connected to the end of the second connecting pipe (27). The other end side walls of the connecting pipe (26) and the second connecting pipe (27) are each connected to a flange (28), and the flange (28) is in contact with the second flange. The end side walls of the input pipe (7) and the output pipe (8) are each connected to a second flange.

8. The valve with leakage detection function according to claim 7, characterized in that: The second flange is threadedly connected to the flange (28) via bolts (29), and the ends of the bolts (29) are arranged toward the valve body (1) and are plugged into and matched with the pneumatic component (30).

9. The valve with leakage detection function according to claim 8, characterized in that: The pneumatic component (30) includes: an annular groove (32), an annular groove (32) is opened on the end surface of the flange (28), the annular groove (32) and the annular grooves on the two end surfaces of the flange are arranged opposite to each other to form an annular cavity, a hollow rubber ring (33) is inserted into the annular cavity, the inner wall of the hollow rubber ring (33) is connected to the bottom ends of multiple air guide tubes (34), and the other end of the air guide tubes (34) is connected to the inner wall of the sleeve (31).

10. The valve with leakage detection function according to claim 9, characterized in that: The open end of the sleeve (31) is connected to the end face of the flange (28) facing the valve body (1), and each sleeve (31) is plugged into the end of a bolt (29). The end of the bolt (29) contacts and fits with the end face of the piston (35). The piston (35) and the sleeve (31) are slidably sealed. The other end of the piston (35) is connected to the inner wall of the sleeve (31) end through the second spring (36), and the other end of the air guide pipe (34) is arranged toward the second spring (36).

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