Multi-mode air operated slide gate valve

Abstract

This utility model discloses a multi-mode pneumatically controlled sliding plate valve, specifically relating to the field of pneumatically controlled sliding plate valves. Its key technical features include a valve body with a protective shell fixedly installed on its upper surface. A cylinder output shaft is fixedly installed on the inner top wall of the protective shell, slidingly penetrating the upper surface of the valve body and extending to a fixed rod. A piston plate is fixedly installed at the bottom end of the fixed rod, and a valve plate is fixedly installed at the bottom end of the piston plate. A driving device is provided inside the protective shell. This utility model is simple to operate. On one hand, rotating the handle, combined with a synchronous belt and threaded drive, allows for easy and precise control of the valve plate position, efficiently and accurately cutting off fluid or regulating flow, improving operational convenience and adjustment accuracy. On the other hand, it offers both manual and automatic modes. Manual mode allows for flexible adjustment, while automatic mode enables rapid action upon command. The combination of these two modes allows the valve to adapt to different working scenarios and conditions, enhancing its application adaptability.

Description

Technical Field

[0001] This utility model relates to the field of pneumatically controlled sliding plate valves, and more specifically, to a multi-mode pneumatically controlled sliding plate valve. Background Technology

[0002] The slide gate control valve contains two slide gates perpendicular to the flow direction of the medium within the valve body. Multiple throttling grooves are cut into these plates. High-speed fluid, after passing through the throttling structure of the slide gates, is ejected and superimposed, causing the kinetic energy of the medium to be converted into heat energy through mutual collision and friction. This significantly reduces the energy required for cavitation and flashing, minimizing damage to the valve's internal components caused by cavitation and flashing. This effectively prevents sudden pressure drops, reduces bubble formation, and also lowers the noise generated when the fluid flows through the throttling orifice. When used in explosion-proof areas, slide gate valves require pneumatic control components to open and close them.

[0003] Chinese utility model patent CN217463262U discloses a pneumatic control component with controllable opening and closing function for a sliding plate valve. In use, a switch enables a cylinder to move a movable rod. A sealing valve plate is mounted on the lower end of the movable rod via a valve rod, allowing the movable rod to move the valve rod and sealing valve plate up and down, thus opening and closing the valve body. Holding two sets of valve guard plates, inserting the inserts at the lower end of the valve guard plates into the insertion holes, and using screws to fix the connecting block, ensures that the two sets of valve guard plates are on the outside of the movable rod, protecting it. However, this device only has a single operating mode and can only be automatically controlled. When the working environment changes, the single-mode valve cannot flexibly respond, and relying solely on automatic valves is insufficient to meet the frequent needs of manual intervention.

[0004] Therefore, a multi-mode pneumatically controlled sliding valve needs to be redesigned to address the aforementioned issues. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a multi-mode pneumatically controlled sliding plate valve.

[0006] A multi-mode pneumatically controlled sliding plate valve includes a valve body. A protective shell is fixedly installed on the upper surface of the valve body. An output shaft of a cylinder is fixedly installed on the inner top wall of the protective shell, which slides through the upper surface of the valve body and extends to install a fixed rod. A piston plate is fixedly installed at the bottom end of the fixed rod, and a valve plate is fixedly installed at the bottom end of the piston plate. A driving device is provided inside the protective shell. The output end of the driving device passes through the upper surface of the valve body and extends into the valve body, where two adjusting devices are installed. The output ends of both adjusting devices are connected to the piston plate.

[0007] In a preferred embodiment, the drive device includes two mounting rods, which are symmetrically and rotatably mounted on the inner top wall of the protective shell. The bottom ends of the two mounting rods rotatably penetrate the upper end face of the valve body and extend downward to be mounted with threaded rods. Two adjusting devices are respectively connected to the threaded rods. The top ends of the two mounting rods penetrate the inner top wall of the protective shell and extend outward together to be mounted with a synchronization component.

[0008] In a preferred embodiment, the synchronization component includes a first synchronization wheel and a second synchronization wheel, and the first synchronization wheel and the second synchronization wheel are respectively fixedly installed on the top of the mounting rods at corresponding positions, and a synchronization belt is installed between the first synchronization wheel and the second synchronization wheel.

[0009] In a preferred embodiment, each of the adjusting devices includes a mounting plate, which is threadedly connected to a corresponding threaded rod and slidably connected to the valve body. Two connecting rods are symmetrically fixedly mounted on the bottom end of the mounting plate, and a fixing plate is fixedly mounted on the bottom end of the two connecting rods. A spring is fixedly mounted on the bottom end of the fixing plate.

[0010] In a preferred embodiment, the upper end face of the piston plate has two symmetrically formed storage slots, and two springs are respectively fixedly connected to the inner bottom wall of the two storage slots.

[0011] In a preferred embodiment, a handle is fixedly mounted on one side of the first synchronizing pulley.

[0012] Compared with the prior art, the beneficial effects of this utility model include:

[0013] 1. This utility model, by setting up a drive device, an adjustment device, and other devices, can easily achieve precise control of the valve plate position by turning the handle and using a combination of synchronous belt drive and threaded drive. The operator only needs to turn the handle to drive the two threaded rods to rotate synchronously, thereby making the mounting plate slide smoothly up and down, and finally accurately control the movement distance of the valve plate. Whether it is cutting off the fluid or finely adjusting the flow rate, it can be done efficiently and accurately, greatly improving the convenience of operation and adjustment accuracy.

[0014] 2. This utility model, by setting up devices such as cylinders, fixed rods, piston plates, and valve plates, allows the cylinder to quickly drive the valve plate to move by extending and retracting the output shaft according to preset signals or instructions from the automation system in automatic mode. It works in conjunction with manual operation mode, enabling the valve to adapt to different working scenarios and conditions. Whether it is a situation requiring fine manual adjustment or a process with high requirements for automated control, it can operate stably, significantly enhancing the application adaptability of the valve.

[0015] In summary, this utility model is simple to operate. On the one hand, the combination of rotating the handle with the synchronous belt and threaded drive allows for easy and precise control of the valve plate position, efficiently and accurately cutting off fluid or regulating flow, thus improving operational convenience and adjustment accuracy. On the other hand, it offers both manual and automatic modes. The manual mode allows for flexible adjustment, while the automatic mode can act quickly upon command. The combination of these two modes enables the valve to adapt to different working scenarios and conditions, enhancing its application adaptability. Attached Figure Description

[0016] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0017] Figure 1 This is a schematic diagram of the structure of a multi-mode pneumatically controlled sliding plate valve proposed in this utility model;

[0018] Figure 2 This is a cross-sectional view of the valve body portion of a multi-mode pneumatic sliding plate valve proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the valve plate portion of a multi-mode pneumatically controlled sliding plate valve proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the drive device for a multi-mode pneumatic sliding plate valve proposed in this utility model.

[0021] The following components are labeled in the diagram: 1. Valve body, 2. Protective shell, 3. Handle, 4. Valve plate, 5. Piston plate, 6. Spring, 7. Fixing plate, 8. Cylinder, 9. Storage groove, 10. Fixing rod, 11. Connecting rod, 12. Threaded rod, 13. Mounting plate, 14. Mounting rod, 15. First synchronous pulley, 16. Second synchronous pulley, 17. Synchronous belt. Detailed Implementation

[0022] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0023] Reference Figure 1-4A multi-mode pneumatically controlled sliding valve includes a valve body 1. A protective shell 2 is fixedly installed on the upper end face of the valve body 1. An output shaft of a cylinder 8 is fixedly installed on the inner top wall of the protective shell 2, which slides through the upper end face of the valve body 1 and extends to install a fixed rod 10. A piston plate 5 is fixedly installed at the bottom end of the fixed rod 10. A valve plate 4 is fixedly installed at the bottom end of the piston plate 5. A driving device is provided inside the protective shell 2. The output end of the driving device passes through the upper end face of the valve body 1 and extends into the valve body 1, where two adjusting devices are installed. The output ends of the two adjusting devices are connected to the piston plate 5.

[0024] Furthermore, the drive device includes two mounting rods 14, which are symmetrically and rotatably mounted on the inner top wall of the protective shell 2. The bottom ends of the two mounting rods 14 respectively rotatably penetrate the upper end face of the valve body 1 and extend downward to install threaded rods 12. Two adjusting devices are respectively connected to the threaded rods 12. The top ends of the two mounting rods 14 penetrate the inner top wall of the protective shell 2 and extend outward to install a synchronization component. When the threaded rods 12 rotate, the mounting plate 13 will slide up and down in the valve body 1 along the axial direction of the threaded rods 12.

[0025] Furthermore, the synchronization assembly includes a first synchronization pulley 15 and a second synchronization pulley 16, and the first synchronization pulley 15 and the second synchronization pulley 16 are respectively fixedly installed on the top of the corresponding mounting rod 14. A synchronization belt 17 is installed between the first synchronization pulley 15 and the second synchronization pulley 16, and the rotation of the first synchronization pulley 15 can drive the second synchronization pulley 16 to rotate synchronously through the synchronization belt 17.

[0026] Furthermore, each adjusting device includes a mounting plate 13, which is threadedly connected to a corresponding threaded rod 12, and the mounting plate 13 is slidably connected inside the valve body 1. Two connecting rods 11 are symmetrically fixedly installed at the bottom end of the mounting plate 13, and a fixing plate 7 is fixedly installed at the bottom end of the two connecting rods 11. A spring 6 is fixedly installed at the bottom end of the fixing plate 7.

[0027] Furthermore, two storage slots 9 are symmetrically opened on the upper end face of the piston plate 5, and two springs 6 are fixedly connected to the inner bottom wall of the two storage slots 9 respectively. The storage slots 9 can prevent the springs 6 from being over-compressed and damaged when the piston plate 5 moves upward or downward to the extreme position.

[0028] Furthermore, a handle 3 is fixedly installed on one side of the first synchronous pulley 15.

[0029] In this embodiment, the working principle of this utility model is as follows:

[0030] When it is necessary to operate the valve, turn the handle 3 installed on one side of the first synchronous pulley 15, and the first synchronous pulley 15 will rotate accordingly.

[0031] Since the first synchronous pulley 15 and the second synchronous pulley 16 are connected by a synchronous belt 17, according to the principle of synchronous belt transmission, the rotation of the first synchronous pulley 15 will drive the second synchronous pulley 16 to rotate synchronously. The first synchronous pulley 15 and the second synchronous pulley 16 are respectively fixedly installed at the top of the two mounting rods 14, so the two mounting rods 14 will also rotate synchronously. The bottom end of the two mounting rods 14 rotates through the upper end face of the valve body 1 and is connected to a threaded rod 12. The rotation of the mounting rods 14 will cause the threaded rod 12 to rotate synchronously. The mounting plate 13 is threadedly connected to the threaded rod 12. According to the principle of thread transmission, when the threaded rod 12 rotates, the mounting plate 13 will slide up and down in the valve body 1 along the axial direction of the threaded rod 12.

[0032] Two connecting rods 11 are symmetrically fixedly installed at the bottom of the mounting plate 13. The bottom ends of the two connecting rods 11 are fixedly installed with a fixing plate 7. A spring 6 is fixedly installed at the bottom of the fixing plate 7. Two storage slots 9 are symmetrically opened on the upper end of the piston plate 5. The top of the spring 6 is fixedly connected to the inner bottom wall of the storage slot 9.

[0033] When the mounting plate 13 moves up and down, it exerts a force on the piston plate 5 through the connecting rod 11, the fixing plate 7, and the spring 6. The spring 6 acts as a buffer and transmits the force. When the mounting plate 13 moves down, it compresses the spring 6 and pushes the piston plate 5 down. When the mounting plate 13 moves up, the spring 6 restores its deformation and pulls the piston plate 5 up. The bottom end of the piston plate 5 is fixedly installed with a valve plate 4. When the piston plate 5 moves up and down under the action of the adjusting device, it will drive the valve plate 4 to move synchronously.

[0034] The movement of valve plate 4 can change its relative position with the flow channel inside valve body 1, thereby realizing different working modes such as on / off control of fluid or flow regulation. For example, moving valve plate 4 downward can close the flow channel and cut off the fluid; moving valve plate 4 upward a certain distance can allow the fluid to pass through, and the flow rate of the fluid can be adjusted by controlling the movement distance of valve plate 4.

[0035] The cylinder 8 can directly push or pull the fixed rod 10 through the extension and retraction of the output shaft, thereby driving the piston plate 5 and valve plate 4 to move, realizing the control of the automatic valve. It can be combined with the manual operation mode to provide multiple control modes for the valve.

[0036] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A multi-mode pneumatic slide valve comprising a valve body (1), characterised in that: A protective shell (2) is fixedly installed on the upper end face of the valve body (1). The output shaft of the cylinder (8) is fixedly installed on the inner top wall of the protective shell (2), which slides through the upper end face of the valve body (1) and extends to install a fixed rod (10). A piston plate (5) is fixedly installed at the bottom end of the fixed rod (10), and a valve plate (4) is fixedly installed at the bottom end of the piston plate (5). A driving device is provided inside the protective shell (2). The output end of the driving device passes through the upper end face of the valve body (1) and extends into the valve body (1) to install two adjusting devices. The output ends of the two adjusting devices are connected to the piston plate (5).

2. The multi-mode pneumatically controlled sliding valve according to claim 1, characterized in that: The drive device includes two mounting rods (14), which are symmetrically rotated and mounted on the inner top wall of the protective shell (2). The bottom ends of the two mounting rods (14) respectively rotate through the upper end face of the valve body (1) and extend downward to be mounted with threaded rods (12). Two adjusting devices are respectively connected to the threaded rods (12). The top ends of the two mounting rods (14) both penetrate the inner top wall of the protective shell (2) and extend outward together to be mounted with a synchronization component.

3. A multi-mode air operated slide valve according to claim 2, wherein: The synchronization component includes a first synchronization pulley (15) and a second synchronization pulley (16), and the first synchronization pulley (15) and the second synchronization pulley (16) are respectively fixedly installed on the top of the corresponding mounting rod (14), and a synchronization belt (17) is installed between the first synchronization pulley (15) and the second synchronization pulley (16).

4. A multi-mode air operated slide valve according to claim 2, wherein: Each of the aforementioned adjusting devices includes a mounting plate (13), and the mounting plate (13) is threadedly connected to a corresponding threaded rod (12), and the mounting plate (13) is slidably connected inside the valve body (1). Two connecting rods (11) are symmetrically fixedly mounted on the bottom end of the mounting plate (13), and a fixing plate (7) is fixedly mounted on the bottom end of the two connecting rods (11). A spring (6) is fixedly mounted on the bottom end of the fixing plate (7).

5. A multi-mode air operated slide valve according to claim 1, wherein: The piston plate (5) has two symmetrically arranged storage slots (9) on its upper end face, and two springs (6) are fixedly connected to the inner bottom wall of the two storage slots (9) respectively.

6. A multi-mode air operated slide valve according to claim 3, wherein: A handle (3) is fixedly installed on one side of the first synchronous pulley (15).

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