Pneumatic diaphragm valve and manufacturing process

Abstract

The invention discloses a pneumatic diaphragm valve and a manufacturing process, and relates to the technical field of diaphragm valves, the pneumatic diaphragm valve comprises a pneumatic diaphragm valve, a mobile detection mechanism, an installation filtering mechanism and a flow control mechanism, the top of the pneumatic diaphragm valve is slidably connected with the outer wall of the mobile detection mechanism; the upper end and the lower end of the left side and the right side of the pneumatic diaphragm valve are each fixedly connected with an installation filtering mechanism, a movable detection mechanism is arranged, the number of contact groups of contact blocks and flexible pads is recorded through a micro camera, and recorded data are combined with detection data of a supporting detection mechanism; the accuracy and the reliability of judging the radian change condition of the diaphragm are improved; the support detection mechanism is arranged, the radian change size of the diaphragm is indirectly calculated through the length change of the electric spring, the pressure borne by the diaphragm is relieved through the electric spring when fluid impacts the diaphragm, unrecoverable deformation of the diaphragm caused by instant overlarge impact force is avoided, and the support detection mechanism plays a role in supporting and stabilizing the diaphragm.

Description

Technical Field

[0001] The invention relates to the technical field of diaphragm valves, in particular to a pneumatic diaphragm valve and a manufacturing process. Background Art

[0002] The diaphragm valve is suitable for use in pipelines with various concentrations of aqua regia, sulfuric acid, hydrochloric acid, hydrofluoric acid and various organic acids, strong acids, and strong oxidants at -50 to 150°C. It is also suitable for use in pipelines with various concentrations of strong alkaline organic solvents and other corrosive gases and liquid media.

[0003] It is difficult to detect the curvature of the diaphragm during use of the existing technology, and its practicality is relatively simple. In addition, it is difficult for some equipment to support and stabilize the diaphragm, which may cause the circulating fluid to impact the diaphragm and cause irreversible deformation. Since the resistance strain gauge may be affected by factors such as temperature and electromagnetic interference and its measurement accuracy, it is difficult for some equipment to make a comprehensive judgment based on the movement distance of the piston rod in the pneumatic diaphragm valve when detecting the curvature of the diaphragm, which reduces the accuracy and reliability of the judgment of the change in the curvature of the diaphragm; and when the diaphragm is in use, it is difficult to protect the diaphragm valve, buffer the physical impact of the outside world on the pneumatic diaphragm valve, and prevent static electricity accumulation, resulting in poor life and reliability of the pneumatic diaphragm valve;

[0004] In addition, it is difficult to reduce the damage of impurities to the pneumatic diaphragm valve during use of the prior art, which may cause the accumulation of impurities inside the pneumatic diaphragm valve, resulting in the pneumatic diaphragm valve not closing tightly, and generating a larger pressure wave when the fluid suddenly stops;

[0005] Finally: During use of the prior art, it is difficult to control the water flow entering the pneumatic diaphragm valve, and the problem of low production efficiency may occur due to abnormal water flow. Summary of the invention

[0006] Therefore, in order to solve the above-mentioned deficiencies, the present invention provides a pneumatic diaphragm valve and a manufacturing process.

[0007] The present invention is implemented by constructing a pneumatic diaphragm valve and a manufacturing process, the device includes a pneumatic diaphragm valve, the top of the pneumatic diaphragm valve is slidably connected to the outer wall of the mobile detection mechanism, the upper and lower ends of the left and right sides of the pneumatic diaphragm valve are fixedly connected to the installation filter mechanism, and the lower ends of the left and right sides of the pneumatic diaphragm valve are fixedly connected to the flow control mechanism;

[0008] The mobile detection mechanism includes a piston rod, the top of the pneumatic diaphragm valve is slidably connected to the outer wall of the piston rod, the lower right end of the piston rod is fixedly connected to a contact block, the upper right end of the pneumatic diaphragm valve is fixedly connected to seven groups of flexible pads, the upper left end of the pneumatic diaphragm valve is fixedly connected to a protective shell, the left end of the protective shell is fixedly connected to a miniature camera, the front and rear sides of the right end of the protective shell are both provided with a first electromagnetic slot, a wiping block is slidably connected in the first electromagnetic slot, and the left and right ends of the lower part of the pneumatic diaphragm valve are fixedly connected to a support detection mechanism;

[0009] Preferably, the support detection mechanism includes a first mounting rod, and the first mounting rod is fixedly connected to the left and right ends of the lower part of the pneumatic diaphragm valve, and three groups of slots are provided on the left and right sides of the front end of the first mounting rod, and the first electromagnetic block is magnetically adsorbed in the slot, and the first electromagnetic block is electrically connected to the external current output device, and the front end of the first electromagnetic block is fixedly connected to the second mounting rod, and the first mounting rod and the second mounting rod are magnetically adsorbed to the top of the second electromagnetic block, and the bottom of the second electromagnetic block is magnetically adsorbed with an electric spring, and the bottom of the electric spring is magnetically adsorbed with a third electromagnetic block, and the bottom of the third electromagnetic block is magnetically adsorbed with a sliding rod, and the spring wire axis of the electric spring is bonded with a resistance strain gauge in the ±45° direction, and the bottom of the sliding rod is fixedly connected with a protective mechanism.

[0010] Preferably, the protective mechanism includes a diaphragm, the bottom of the sliding rod is fixedly connected to the diaphragm, the bottom of the diaphragm is sprayed with an antibacterial coating, the bottom of the antibacterial coating is sprayed with a polyurethane coating, the bottom of the polyurethane coating is sprayed with a fluorocarbon coating, the bottom of the fluorocarbon coating is sprayed with a polytetrafluoroethylene coating, and the bottom of the polytetrafluoroethylene coating is sprayed with a polyvinylidene fluoride coating, wherein the left and right ends of the diaphragm are elastically connected to the lower part of the pneumatic diaphragm valve.

[0011] Preferably, the installation and filtering mechanism includes a first installation shell, and the upper and lower ends on the left and right sides of the pneumatic diaphragm valve are fixedly connected to the first installation shell, the left end of the first installation shell is fixedly connected to a mounting plate, the right end of the mounting plate is provided with a second electromagnetic slot, and the second electromagnetic slot is composed of a slide slot arranged at the right end of the mounting plate and eight groups of electromagnetic blocks equidistantly arranged in the slide slot, and the electromagnetic block is electrically connected to an external current output device, the slide slot in the second electromagnetic slot is slidably connected to the movable plate, and the movable plate is magnetically adsorbed to the electromagnetic block in the second electromagnetic slot, and the right end of the movable plate is fixedly connected to an inclined block, the outer wall of the inclined block is slidably connected to the first plug rod, and the first plug rod passes through the upper and lower ends of the first installation shell and is slidably connected to the inside thereof, the first plug rod is plugged and fixed to the filter plate, and the filter plate is arranged at the left and right ends in the pneumatic diaphragm valve, wherein the first plug rod passes through the top and bottom of the pneumatic diaphragm valve and is slidably connected to the inside thereof, and a sealing ring is provided at the sliding connection.

[0012] Preferably, the flow control mechanism includes a second mounting shell, the lower ends on the left and right sides of the pneumatic diaphragm valve are fixedly connected to the second mounting shells, the top right end of the second mounting shell is slidably connected to the outer wall of the second plug rod, the top of the second plug rod is plugged and fixed to the sealing plate, the second plug rod penetrates the limit rod and is slidably connected to the inside of it, the bottom of the limit rod is fixedly connected to a U-shaped limit plate, eight groups of fourth electromagnetic blocks are provided at the upper and lower ends of the U-shaped limit plate, and the fourth electromagnetic blocks are electrically connected to the external current output device, the fourth electromagnetic block is magnetically adsorbed to the sliding plate, a triangular groove is provided at the right end of the sliding plate, a convex rod is slidably connected in the triangular groove, the convex rod penetrates the mounting block and is fixedly connected to the inside of it, wherein the top of the mounting block is fixedly connected to the second plug rod, the second plug rod penetrates the bottom of the pneumatic diaphragm valve and is slidably connected to the inside of it, and a sealing ring is provided at the sliding connection, and sealing plates are provided at the left and right ends of the pneumatic diaphragm valve.

[0013] Preferably, the top of the flexible pad contacts the bottom of the contact block, and the left end of the wiping block contacts the shooting end of the miniature camera.

[0014] Preferably, the first electromagnetic slot is composed of a slide slot arranged on the front and rear sides of the right end of the protective shell, and six groups of electromagnetic blocks equidistantly arranged in the slide slot, and the electromagnetic block is electrically connected to the external current output device, the slide slot in the first electromagnetic slot is slidably connected to the wiping block, and the electromagnetic block in the first electromagnetic slot is magnetically adsorbed to the wiping block.

[0015] Preferably, the sliding rod passes through the bottom of the first mounting rod and the second mounting rod and is slidably connected to the inside thereof, and the first electromagnetic block, the second electromagnetic block and the third electromagnetic block are all electrically connected to an external current output device.

[0016] Preferably, the left end of the U-shaped limiting plate is fixedly connected to the left end inside the second mounting shell, and a sliding plate is slidably connected inside the U-shaped limiting plate.

[0017] A manufacturing process of a pneumatic diaphragm valve comprises the following steps:

[0018] Step 1: Melting and pouring: heating and melting pig iron, scrap steel, scrap parts and scrap iron, and mixing them evenly to form a pouring liquid, and then conveying the pouring liquid to a mold, cooling and solidifying it to form a valve body;

[0019] Step 2: Cleaning: Use appropriate cleaning agents and lubricants to clean any impurities on the inner and outer surfaces of the valve body;

[0020] Step 3: Internal installation: Use diaphragm pliers or other clamping tools to install the mobile detection mechanism into the valve body;

[0021] Step 4: External installation: Bolt the filter mechanism and the flow control mechanism onto the outer surface of the valve body to complete the preparation of the pneumatic diaphragm valve.

[0022] The present invention has the following advantages: The present invention provides a pneumatic diaphragm valve and a manufacturing process through improvement, which has the following improvements compared with the same type of equipment:

[0023] The pneumatic diaphragm valve and manufacturing process described in the present invention are provided with a mobile detection mechanism, and the number of contact groups between the contact block and the flexible pad is recorded by a micro camera, and the recorded data is combined with the detection data of the support detection mechanism to improve the accuracy and reliability of the judgment of the curvature change of the diaphragm; the support detection mechanism is provided to indirectly calculate the curvature change of the diaphragm through the length change of the electric spring, and then the pressure on the diaphragm is reduced by the electric spring when the fluid impacts the diaphragm, so as to avoid the diaphragm from irreversible deformation due to the instantaneous excessive impact force, and play a supporting and stabilizing role for the diaphragm; an anti- A protective mechanism is provided to improve the life and reliability of the pneumatic diaphragm valve through multiple protective layers; a filtering mechanism is provided to reduce the damage of impurities to the pneumatic diaphragm valve through the filter plate, indirectly reduce the possibility of water hammer effect caused by impurities, prevent impurities from accumulating inside the pneumatic diaphragm valve, avoid the pneumatic diaphragm valve from being poorly closed, and thus generate a larger pressure wave when the fluid stops suddenly; a flow control mechanism is provided to control the flow area through sealing plates of different sizes by inserting the second plug rod into the sealing plate, thereby realizing water flow control of the pneumatic diaphragm valve and avoiding the problem of low production efficiency caused by abnormal water flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the steps of the present invention;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the pneumatic diaphragm valve of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the mobile detection mechanism of the present invention when viewed from the front;

[0027] Figure 4 It is a schematic diagram of the three-dimensional decomposition structure inside the protective shell of the present invention;

[0028] Figure 5 It is a schematic diagram of the internal three-dimensional decomposition structure of the support detection mechanism of the present invention;

[0029] Figure 6 The present invention Figure 5 A schematic diagram of the enlarged structure at A in the middle;

[0030] Figure 7 It is a schematic diagram of the three-dimensional exploded structure of the protection mechanism of the present invention;

[0031] Figure 8 It is a schematic diagram of the three-dimensional decomposition structure of the filter mechanism installed in the present invention;

[0032] Fig. 9 The present invention Figure 8 A schematic diagram of the enlarged structure at B in the middle;

[0033] Fig.10 It is a schematic diagram of the three-dimensional structure of the flow control mechanism of the present invention;

[0034] Fig.11 It is a schematic diagram of the internal three-dimensional structure of the flow control mechanism of the present invention.

[0035] Among them: pneumatic diaphragm valve-1, mobile detection mechanism-2, piston rod-21, contact block-22, flexible pad-23, protective shell-24, miniature camera-25, first electromagnetic slot-26, wiping block-27, support detection mechanism-28, first mounting rod-281, slot-282, first electromagnetic block-283, second mounting rod-284, second electromagnetic block-285, electric spring-286, third electromagnetic block-287, sliding rod-288, resistance strain gauge-289, protective mechanism-2810, diaphragm-28101, antibacterial coating-28102, polyurethane Ester coating-28103, fluorocarbon coating-28104, polytetrafluoroethylene coating-28105, polyvinylidene fluoride coating-28106, installation filter mechanism-3, first installation shell-31, installation plate-32, second electromagnetic slot-33, moving plate-34, tilting block-35, first plug rod-36, filter plate-37, flow control mechanism-4, second installation shell-41, second plug rod-42, sealing plate-43, limit rod-44, U-shaped limit plate-45, fourth electromagnetic block-46, sliding plate-47, triangular slide groove-48, protruding rod-49, installation block-410. DETAILED DESCRIPTION

[0036] The following is combined with Figures 1 to 11 The principles and features of the present invention are described, and the examples given are only used to explain the present invention and are not used to limit the scope of the present invention. In the following paragraphs, the present invention is described in more detail by way of example with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of the embodiments of the present invention based on its overall structure.

[0039] Embodiment 1:

[0040] See also Figure 1 to Figure 4 A pneumatic diaphragm valve and manufacturing process of the present invention include a pneumatic diaphragm valve 1, the top of the pneumatic diaphragm valve 1 is slidably connected to the outer wall of a moving detection mechanism 2, the upper and lower ends of the left and right sides of the pneumatic diaphragm valve 1 are fixedly connected with a filter installation mechanism 3, and the lower ends of the left and right sides of the pneumatic diaphragm valve 1 are fixedly connected with a flow control mechanism 4.

[0041] The mobile detection mechanism 2 includes a piston rod 21. The top of the pneumatic diaphragm valve 1 is slidably connected to the outer wall of the piston rod 21. A contact block 22 is fixedly connected to the lower right end of the piston rod 21. The piston rod 21 is convenient for driving the contact block 22 to move.

[0042] Seven groups of flexible pads 23 are fixedly connected to the upper right end of the pneumatic diaphragm valve 1, a protective shell 24 is fixedly connected to the upper left end of the pneumatic diaphragm valve 1, a miniature camera 25 is fixedly connected to the left end of the protective shell 24, and the miniature camera 25 is electrically connected to an external display screen.

[0043] A first electromagnetic slot 26 is provided on both the front and rear sides of the right end of the protective shell 24, and a wiping block 27 is slidably connected in the first electromagnetic slot 26. A supporting detection mechanism 28 is fixedly connected to the left and right ends of the lower part of the pneumatic diaphragm valve 1. The top of the flexible pad 23 contacts the bottom of the contact block 22, and the first electromagnetic slot 26 facilitates the movement of the wiping block 27.

[0044] The left end of the wiping block 27 is in contact with the shooting end of the micro camera 25. The first electromagnetic slot 26 is composed of slide slots arranged on the front and rear sides of the right end of the protective shell 24, and six groups of electromagnetic blocks equidistantly arranged in the slide slot, and the electromagnetic block is electrically connected to the external current output device. The slide slot in the first electromagnetic slot 26 is slidably connected to the wiping block 27, and the electromagnetic block in the first electromagnetic slot 26 is magnetically adsorbed to the wiping block 27.

[0045] The working principle of a pneumatic diaphragm valve and a manufacturing process based on the first embodiment is:

[0046] First, when using this device, first place the device in the working area, and then connect the device to an external power source to provide the device with the power required for operation;

[0047] Second, compressed air provided by an external air source enters the pneumatic diaphragm valve 1, pushing the piston rod 21 to work. When the piston rod 21 moves downward, it pushes the diaphragm 28101 to deform downward, thereby opening the pneumatic diaphragm valve 1. When the piston rod 21 moves upward, the diaphragm 28101 recovers upward under the action of its own elasticity or other reset structures, closing the pneumatic diaphragm valve 1.

[0048] Third, when it is necessary to record the number of contact groups of the piston rod 21, the six groups of electromagnetic blocks in the first electromagnetic slot 26 are driven to work step by step through the external current output device, so that the wiping block 27 moves downward under the influence of the magnetic adsorption of the electromagnetic blocks in the first electromagnetic slot 26, so that the wiping block 27 wipes the shooting end of the micro camera 25. When the piston rod 21 moves downward, the piston rod 21 drives the contact block 22 to move downward, so that the contact block 22 contacts the flexible pad 23 and causes the flexible pad 23 to undergo elastic deformation. Then, the number of contact groups between the contact block 22 and the flexible pad 23 is recorded by the micro camera 25, and the recorded data is transmitted to the external display screen. The staff combines the recorded data with the detection data of the support detection mechanism 28 to improve the accuracy and reliability of the judgment of the curvature change of the diaphragm 28101.

[0049] Embodiment 2:

[0050] See also Figure 5-6 Compared with the first embodiment, the present invention further includes a pneumatic diaphragm valve and a manufacturing process. The support detection mechanism 28 includes a first mounting rod 281. The left and right ends of the lower inner part of the pneumatic diaphragm valve 1 are fixedly connected with the first mounting rod 281. The left and right sides of the front end of the first mounting rod 281 are provided with three groups of slots 282. The first mounting rod 281 facilitates the installation of the slots 282.

[0051] A first electromagnetic block 283 is magnetically adsorbed in the slot 282, and the first electromagnetic block 283 is electrically connected to an external current output device. A second mounting rod 284 is fixedly connected to the front end of the first electromagnetic block 283. A second electromagnetic block 285 is magnetically adsorbed on the top of the first mounting rod 281 and the second mounting rod 284. The second electromagnetic block 285 facilitates the installation of the electric spring 286.

[0052] An electric spring 286 is magnetically adsorbed on the bottom of the second electromagnetic block 285, a third electromagnetic block 287 is magnetically adsorbed on the bottom of the electric spring 286, a sliding rod 288 is magnetically adsorbed on the bottom of the third electromagnetic block 287, and resistance strain gauges 289 are glued and connected to the spring wire axis of the electric spring 286 in the ±45° direction. The resistance strain gauges 289 facilitate the calculation of the length change of the electric spring 286.

[0053] A protective mechanism 2810 is fixedly connected to the bottom of the sliding rod 288. The sliding rod 288 passes through the bottom of the first mounting rod 281 and the second mounting rod 284 and is slidably connected to the inside thereof. The first electromagnetic block 283, the second electromagnetic block 285 and the third electromagnetic block 287 are all electrically connected to the external current output device.

[0054] In this embodiment:

[0055] First, the electric spring 286 is powered by an external power supply. When the curvature of the diaphragm 28101 changes, the diaphragm 28101 drives the sliding rod 288 to move downward, and the sliding rod 288 drives the electric spring 286 to stretch and generate a stress field around it. This stress field affects the resistance value of the resistance strain gauge 289, and then the resistance strain element inside the resistance strain gauge 289 is deformed by the stress, so that the staff can calculate the length change of the electric spring 286 through the resistance value of the resistance strain gauge 289, and indirectly calculate the curvature change of the diaphragm 28101 through the length change of the electric spring 286;

[0056] Second, when the electric spring 286 needs to be replaced, the operation of the second electromagnetic block 285 and the third electromagnetic block 287 is stopped through the external current output device, so that the electric spring 286 is separated from the first mounting rod 281, the second mounting rod 284 and the sliding rod 288 respectively, and then the operation of the first electromagnetic block 283 is stopped through the external current output device, and then the staff drives the second mounting rod 284 to move forward, so that the second mounting rod 284 drives the first electromagnetic block 283 to move forward, thereby separating the first electromagnetic block 283 from the slot 282, and replacing the electric spring 286, thereby preventing the electric spring 286 from losing its restoring force after long-term use. When the fluid impacts the diaphragm 28101, the electric spring 286 reduces the pressure on the diaphragm 28101, avoids the diaphragm 28101 from irreversible deformation due to the instantaneous excessive impact force, and plays a supporting and stabilizing role for the diaphragm 28101.

[0057] Embodiment three:

[0058] See also Figure 7Compared with the first embodiment, the present invention provides a pneumatic diaphragm valve and a manufacturing process. The present embodiment further includes: a protective mechanism 2810, the protective mechanism 2810 includes a diaphragm 28101, the bottom of the sliding rod 288 is fixedly connected with the diaphragm 28101, and the bottom of the diaphragm 28101 is sprayed with an antibacterial coating 28102, which is convenient for protecting the diaphragm 28101 from infection by bacteria and other microorganisms.

[0059] The bottom of the antibacterial coating 28102 is sprayed with a polyurethane coating 28103, and the bottom of the polyurethane coating 28103 is sprayed with a fluorocarbon coating 28104. The fluorocarbon coating 28104 is convenient for preventing static electricity from accumulating and affecting the normal operation of the pneumatic diaphragm valve 1.

[0060] A polytetrafluoroethylene coating 28105 is sprayed on the bottom of the fluorocarbon coating 28104, a polytetrafluoroethylene coating 28105 is sprayed on the bottom of the polytetrafluoroethylene coating 28105, and a polyvinylidene fluoride coating 28106 is sprayed on the left and right ends of the diaphragm 28101 are elastically connected to the lower inner part of the pneumatic diaphragm valve 1, and the antibacterial coating 28102, the polyurethane coating 28103, the fluorocarbon coating 28104, the polytetrafluoroethylene coating 28105, and the polyvinylidene fluoride coating 28106 are sprayed on the surface of the pneumatic diaphragm 28101 with precise control of thickness and uniformity.

[0061] In this embodiment:

[0062] The antibacterial coating 28102 protects the diaphragm 28101 from infection by bacteria and other microorganisms, and the polyurethane coating 28103 undergoes a certain degree of elastic deformation as the diaphragm 28101 deforms, thereby enhancing the wear resistance and moisture resistance properties while buffering the external physical impact on the pneumatic diaphragm valve 1 to a certain extent. The fluorocarbon coating 28104 prevents static electricity from accumulating and affecting the normal operation of the pneumatic diaphragm valve 1, and the polytetrafluoroethylene coating 28105 provides the diaphragm 28101 with good anti-corrosion and anti-sticking properties. Finally, the polyvinylidene fluoride coating 28106 protects the diaphragm 28101 from mechanical damage, thereby improving the life and reliability of the pneumatic diaphragm valve 1.

[0063] Embodiment 4:

[0064] See also Figure 8-Figure 9 Compared with the first embodiment, the present invention provides a pneumatic diaphragm valve and manufacturing process, and the present embodiment further includes: installing a filter mechanism 3, the installing filter mechanism 3 includes a first installing shell 31, the upper and lower ends of the left and right sides of the pneumatic diaphragm valve 1 are fixedly connected with the first installing shell 31, the left end of the first installing shell 31 is fixedly connected with a mounting plate 32, and the first installing shell 31 facilitates the installation and fixing of the mounting plate 32.

[0065] A second electromagnetic slot 33 is provided at the right end of the mounting plate 32, and the second electromagnetic slot 33 is composed of a slide slot provided at the right end of the mounting plate 32, and eight groups of electromagnetic blocks equidistantly arranged in the slide slot, and the electromagnetic blocks are electrically connected to an external current output device. The second electromagnetic slot 33 is convenient for driving the movable plate 34 to move.

[0066] The sliding groove in the second electromagnetic groove 33 is slidably connected to the movable plate 34, and the movable plate 34 is magnetically adsorbed to the electromagnetic block in the second electromagnetic groove 33. The right end of the movable plate 34 is fixedly connected with a tilting block 35, and the outer wall of the tilting block 35 is slidably connected to the first plug rod 36, and the first plug rod 36 passes through the upper and lower ends of the first mounting shell 31 and is slidably connected to its interior, so that the movable plate 34 can easily drive the tilting block 35 to move.

[0067] The first plug rod 36 is plugged and fixed with the filter plate 37, and the filter plate 37 is arranged at the left and right ends of the pneumatic diaphragm valve 1. The first plug rod 36 passes through the top and bottom of the pneumatic diaphragm valve 1 and is slidably connected to the inside thereof, and a sealing ring is provided at the sliding connection.

[0068] In this embodiment:

[0069] When it is necessary to reduce the damage of impurities to the pneumatic diaphragm valve 1, the filter plate 37 is installed into the pneumatic diaphragm valve 1 by a clamping tool, and then the electromagnetic blocks in the eight groups of second electromagnetic slots 33 above the pneumatic diaphragm valve 1 are driven to work step by step through an external current output device, so that the movable plate 34 is affected by the magnetic adsorption of the electromagnetic blocks in the second electromagnetic slots 33 and moves forward. The movable plate 34 drives the tilting block 35 to move forward, so that the first plug rod 36 is affected by the tilting setting of the tilting block 35 and the gravity factor and moves downward, and then the first plug rod 36 is inserted into the filter plate 37, and the filter plate 37 is installed and fixed. The damage of impurities to the pneumatic diaphragm valve 1 is reduced by the filter plate 37, and the possibility of water hammer effect caused by impurities is indirectly reduced, and impurities are prevented from accumulating inside the pneumatic diaphragm valve 1, so as to avoid the pneumatic diaphragm valve 1 from being closed tightly, thereby generating a larger pressure wave when the fluid stops suddenly.

[0070] Embodiment five:

[0071] See also Figure 10-11 , a pneumatic diaphragm valve and manufacturing process of the present invention, compared with the first embodiment, this embodiment also includes: a flow control mechanism 4, the flow control mechanism 4 includes a second mounting shell 41, the lower ends of the left and right sides of the pneumatic diaphragm valve 1 are fixedly connected with the second mounting shell 41, the top right end of the second mounting shell 41 is slidably connected to the outer wall of the second plug rod 42, and the second mounting shell 41 facilitates the limiting movement of the second plug rod 42.

[0072] The top of the second plug rod 42 is plugged and fixed with the sealing plate 43, the second plug rod 42 passes through the limiting rod 44 and is slidably connected to the inside thereof, the bottom of the limiting rod 44 is fixedly connected with a U-shaped limiting plate 45, eight groups of fourth electromagnetic blocks 46 are provided at the upper and lower ends of the U-shaped limiting plate 45, and the fourth electromagnetic blocks 46 are electrically connected to the external current output device, and the fourth electromagnetic blocks 46 are convenient for driving the sliding plate 47 to move.

[0073] The fourth electromagnetic block 46 is magnetically attracted to the sliding plate 47. A triangular slot 48 is provided at the right end of the sliding plate 47. A protruding rod 49 is slidably connected in the triangular slot 48. The protruding rod 49 passes through the mounting block 410 and is fixedly connected to the inside thereof. A second plug rod 42 is fixedly connected to the top of the mounting block 410. The mounting block 410 facilitates the movement of the second plug rod 42.

[0074] The second insertion rod 42 passes through the bottom of the pneumatic diaphragm valve 1 and is slidably connected to the inside thereof, and a sealing ring is provided at the sliding connection. Sealing plates 43 are provided at both left and right ends of the pneumatic diaphragm valve 1. The left end of the U-shaped limiting plate 45 is fixedly connected to the left end inside the second mounting shell 41, and a sliding plate 47 is slidably connected inside the U-shaped limiting plate 45.

[0075] In this embodiment:

[0076] When the flow rate needs to be controlled, the sealing plate 43 of the required size is installed into the pneumatic diaphragm valve 1 through the clamping tool, and then the eight groups of fourth electromagnetic blocks 46 are driven to work step by step through the external current output device, so that the sliding plate 47 is affected by the magnetic adsorption of the fourth electromagnetic block 46 and moves forward, and the sliding plate 47 drives the triangular slide groove 48 to move forward, and then the protruding rod 49 is affected by the inclined setting of the triangular slide groove 48 and moves upward, and the protruding rod 49 drives the mounting block 410 to move upward, and the mounting block 410 drives the second plug rod 42 to move upward in the limit rod 44, so that the second plug rod 42 is inserted into the sealing plate 43, and the flow area is controlled by sealing plates 43 of different sizes to realize the water flow control of the pneumatic diaphragm valve 1, thereby avoiding the problem of low production efficiency caused by abnormal water flow.

[0077] Embodiment six:

[0078] See also Figures 1 to 11 , a pneumatic diaphragm valve and manufacturing process of the present invention, compared with the first embodiment, this embodiment includes the following steps:

[0079] Step 1: Melting and pouring: heating and melting pig iron, scrap steel, scrap parts and scrap iron, and mixing them evenly to form a pouring liquid, and then conveying the pouring liquid to a mold, cooling and solidifying it to form a valve body;

[0080] Step 2: Cleaning: Use appropriate cleaning agents and lubricants to clean any impurities on the inner and outer surfaces of the valve body;

[0081] Step 3: Internal installation: Use diaphragm pliers or other clamping tools to install the mobile detection mechanism 2 into the valve body;

[0082] Step 4: External installation: Fix the filter mechanism 3 and the flow control mechanism 4 with bolts on the outer surface of the valve body to complete the preparation of the pneumatic diaphragm valve 1.

[0083] The present invention provides a pneumatic diaphragm valve and a manufacturing process through improvement, wherein a mobile detection mechanism 2 is provided, and the number of contact groups between the contact block 22 and the flexible pad 23 is recorded by a micro camera 25, and the recorded data is combined with the detection data of the support detection mechanism 28, so as to improve the accuracy and reliability of the judgment of the curvature change of the diaphragm 28101; the support detection mechanism 28 is provided, and the curvature change of the diaphragm 28101 is indirectly calculated by the length change of the electric spring 286, and then the pressure on the diaphragm 28101 is reduced by the electric spring 286 when the fluid impacts the diaphragm 28101, so as to avoid the diaphragm 28101 from irreversible deformation due to the instantaneous excessive impact force, and the diaphragm 28101 is prevented from being deformed irreversibly. 01 plays a supporting and stabilizing role; a protective mechanism 2810 is set to improve the life and reliability of the pneumatic diaphragm valve 1 through multiple protective layers; a filtering mechanism 3 is set to reduce the damage of impurities to the pneumatic diaphragm valve 1 through the filter plate 37, indirectly reduce the possibility of water hammer effect caused by impurities, prevent impurities from accumulating inside the pneumatic diaphragm valve 1, avoid causing the pneumatic diaphragm valve 1 to be loosely closed, and then generate a larger pressure wave when the fluid stops suddenly; a flow control mechanism 4 is set to control the flow area through sealing plates 43 of different sizes by inserting the second plug rod 42 into the sealing plate 43, thereby realizing water flow control of the pneumatic diaphragm valve 1 and avoiding the problem of low production efficiency due to abnormal water flow.

[0084] The above shows and describes the basic principle, main features and advantages of the present invention, and the standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0085] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pneumatic diaphragm valve, comprising a pneumatic diaphragm valve (1), the top of the pneumatic diaphragm valve (1) being slidably connected to the outer wall of a moving detection mechanism (2), the upper and lower ends of the left and right sides of the pneumatic diaphragm valve (1) being fixedly connected to a mounting filter mechanism (3), and the lower ends of the left and right sides of the pneumatic diaphragm valve (1) being fixedly connected to a flow control mechanism (4); Features: The mobile detection mechanism (2) comprises a piston rod (21), the top of the pneumatic diaphragm valve (1) is slidably connected to the outer wall of the piston rod (21), the lower right end of the piston rod (21) is fixedly connected to a contact block (22), the upper right end of the pneumatic diaphragm valve (1) is fixedly connected to seven groups of flexible pads (23), the upper left end of the pneumatic diaphragm valve (1) is fixedly connected to a protective shell (24), the left end of the protective shell (24) is fixedly connected to a miniature camera (25), the front and rear sides of the right end of the protective shell (24) are both provided with a first electromagnetic slot (26), a wiping block (27) is slidably connected in the first electromagnetic slot (26), and the left and right ends of the lower part of the pneumatic diaphragm valve (1) are fixedly connected to a support detection mechanism (28).

2. A pneumatic diaphragm valve according to claim 1, characterized in that: The support detection mechanism (28) comprises a first mounting rod (281), and the first mounting rod (281) is fixedly connected to the left and right ends of the lower part of the pneumatic diaphragm valve (1), and three groups of slots (282) are provided on the left and right sides of the front end of the first mounting rod (281), and a first electromagnetic block (283) is magnetically adsorbed in the slot (282), and the first electromagnetic block (283) is electrically connected to an external current output device, and the front end of the first electromagnetic block (283) is fixedly connected to the second mounting rod (284), and the first mounting rod (281 ) and the top of the second mounting rod (284) are both magnetically adsorbed with a second electromagnetic block (285), the bottom of the second electromagnetic block (285) is magnetically adsorbed with an electric spring (286), the bottom of the electric spring (286) is magnetically adsorbed with a third electromagnetic block (287), the bottom of the third electromagnetic block (287) is magnetically adsorbed with a sliding rod (288), the spring wire axis of the electric spring (286) is glued and connected with a resistance strain gauge (289) in the ±45° direction, and the bottom of the sliding rod (288) is fixedly connected with a protective mechanism (2810).

3. A pneumatic diaphragm valve according to claim 2, characterized in that: The protective mechanism (2810) includes a diaphragm (28101), the bottom of the sliding rod (288) is fixedly connected to the diaphragm (28101), the bottom of the diaphragm (28101) is sprayed with an antibacterial coating (28102), the bottom of the antibacterial coating (28102) is sprayed with a polyurethane coating (28103), the bottom of the polyurethane coating (28103) is sprayed with a fluorocarbon coating (28104), the bottom of the fluorocarbon coating (28104) is sprayed with a polytetrafluoroethylene coating (28105), and the bottom of the polytetrafluoroethylene coating (28105) is sprayed with a polyvinylidene fluoride coating (28106), wherein the left and right ends of the diaphragm (28101) are elastically connected to the inner lower part of the pneumatic diaphragm valve (1).

4. A pneumatic diaphragm valve according to claim 3, characterized in that: The installation filter mechanism (3) comprises a first installation shell (31), and the upper and lower ends of the left and right sides of the pneumatic diaphragm valve (1) are fixedly connected to the first installation shell (31), and the left end of the first installation shell (31) is fixedly connected to the installation plate (32), and the right end of the installation plate (32) is provided with a second electromagnetic slot (33), and the second electromagnetic slot (33) is composed of a slide slot provided at the right end of the installation plate (32) and eight groups of electromagnetic blocks equidistantly arranged in the slide slot, and the electromagnetic block is electrically connected to an external current output device, and the slide slot in the second electromagnetic slot (33) is slidably connected to the moving plate (34), and the moving plate (34) is connected to the moving plate (34). ) is magnetically attracted to the electromagnetic block in the second electromagnetic slot (33), the right end of the movable plate (34) is fixedly connected with a tilting block (35), the outer wall of the tilting block (35) is slidably connected with the first plug rod (36), and the first plug rod (36) passes through the upper and lower ends of the first mounting shell (31) and is slidably connected to the inside thereof, the first plug rod (36) is plugged and fixed with the filter plate (37), and the filter plate (37) is arranged at the left and right ends of the pneumatic diaphragm valve (1), wherein the first plug rod (36) passes through the top and bottom of the pneumatic diaphragm valve (1) and is slidably connected to the inside thereof, and a sealing ring is provided at the sliding connection.

5. A pneumatic diaphragm valve according to claim 4, characterized in that: The flow control mechanism (4) comprises a second mounting shell (41), the lower ends of the left and right sides of the pneumatic diaphragm valve (1) are fixedly connected to the second mounting shell (41), the top right end of the second mounting shell (41) is slidably connected to the outer wall of the second plug rod (42), the top of the second plug rod (42) is plugged and fixed to the sealing plate (43), the second plug rod (42) passes through the limit rod (44) and is slidably connected to the inside thereof, the bottom of the limit rod (44) is fixedly connected to a U-shaped limit plate (45), the upper and lower ends of the U-shaped limit plate (45) are each provided with eight groups of fourth electromagnetic blocks (46), and the fourth electromagnetic blocks (46) The fourth electromagnetic block (46) is electrically connected to an external current output device, and is magnetically adsorbed to a sliding plate (47). A triangular slide groove (48) is provided at the right end of the sliding plate (47), and a convex rod (49) is slidably connected in the triangular slide groove (48). The convex rod (49) passes through the mounting block (410) and is fixedly connected to the inside thereof. A second plug rod (42) is fixedly connected to the top of the mounting block (410), and the second plug rod (42) passes through the bottom of the pneumatic diaphragm valve (1) and is slidably connected to the inside thereof. A sealing ring is provided at the sliding connection, and sealing plates (43) are provided at both left and right ends of the pneumatic diaphragm valve (1).

6. A pneumatic diaphragm valve according to claim 5, characterized in that: The top of the flexible pad (23) contacts the bottom of the contact block (22), and the left end of the wiping block (27) contacts the shooting end of the micro camera (25).

7. A pneumatic diaphragm valve according to claim 6, characterized in that: The first electromagnetic slot (26) is composed of a slide slot arranged on the front and rear sides of the right end of the protective shell (24), and six groups of electromagnetic blocks arranged equidistantly in the slide slot, and the electromagnetic block is electrically connected to an external current output device, the slide slot in the first electromagnetic slot (26) is slidably connected to the wiping block (27), and the electromagnetic block in the first electromagnetic slot (26) is magnetically adsorbed to the wiping block (27).

8. A pneumatic diaphragm valve according to claim 7, characterized in that: The sliding rod (288) passes through the bottom of the first mounting rod (281) and the second mounting rod (284) and is slidably connected to the inside thereof; the first electromagnetic block (283), the second electromagnetic block (285) and the third electromagnetic block (287) are all electrically connected to an external current output device.

9. A pneumatic diaphragm valve according to claim 8, characterized in that: The left end of the U-shaped limiting plate (45) is fixedly connected to the left end inside the second installation shell (41), and a sliding plate (47) is slidably connected inside the U-shaped limiting plate (45).

10. A manufacturing process of a pneumatic diaphragm valve, used for implementing the pneumatic diaphragm valve as claimed in claim 9, characterized in that: The following steps are involved: Step 1: Melt pouring; The pig iron, scrap steel, scrap parts and scrap iron are heated and melted, and mixed evenly to form a casting liquid, and then the casting liquid is transported to the mold, cooled and solidified to form a valve body; Step 2: Cleaning: Use appropriate cleaning agents and lubricants to clean any impurities on the inner and outer surfaces of the valve body; Step 3: Internal installation: Use diaphragm pliers or other clamping tools to install the mobile detection mechanism (2) into the valve body; Step 4: External installation: Bolt the filter mechanism (3) and the flow control mechanism (4) onto the outer surface of the valve body to complete the preparation of the pneumatic diaphragm valve (1).

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