Switchable pneumatic flap valve

Abstract

The utility model discloses a switchable pneumatic flap valve which comprises a base, a collecting cavity is formed in the base, a first pneumatic valve plate and a second pneumatic valve plate are arranged in the collecting cavity, the first pneumatic valve plate is located above the second pneumatic valve plate, and the second pneumatic valve plate is located above the first pneumatic valve plate. The first pneumatic valve plate and the second pneumatic valve plate each comprise an air cylinder, a swing rod and a flap valve, the flap valves are fixedly connected with the swing rods, the swing rods are rotationally connected with the base, one ends of the air cylinders are hinged to the base, the other ends of the air cylinders are hinged to the swing rods, a cavity is formed in the base, and cooling liquid is contained in the cavity. According to the switchable pneumatic flap valve, discharging of material flows such as large wood shavings can be stably controlled, meanwhile, cooling liquid in the cavity is used for cooling, and the risk of fire disasters is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wood processing, in particular to a switchable pneumatic flap valve. Background Art

[0002] In the wood processing industry, the drying of wet shavings is an important link, which directly affects the quality and production efficiency of subsequent products. However, when wet shavings enter the drying pipeline for drying, they are often accompanied by large shavings, foreign objects or debris. The existing technology uses a rotary valve to control the discharge of large shavings, foreign objects or debris, but the rotary valve is easily blocked by iron or stone debris in the material, resulting in the inability to effectively discharge shavings. Long-term accumulation of dry shavings will cause carbonization and even fire. Utility Model Content

[0003] In view of the above-mentioned prior art, the utility model provides a switchable pneumatic flap valve, which can stably control the discharge of large wood chips and other logistics, and at the same time utilize the coolant in the cavity to cool down, thereby reducing the risk of fire.

[0004] To achieve the above purpose, the technical solution of the embodiment of the utility model is implemented as follows:

[0005] A switchable pneumatic flap valve comprises a base, wherein a collecting chamber is provided in the base, wherein a first pneumatic valve plate and a second pneumatic valve plate are provided in the collecting chamber, wherein the first pneumatic valve plate is located above the second pneumatic valve plate, wherein the first pneumatic valve plate and the second pneumatic valve plate both comprise a cylinder, a rocker arm and a flap valve, wherein the flap valve is fixedly connected to the rocker arm, wherein the rocker arm is rotatably connected to the base, wherein one end of the cylinder is hinged to the base, and the other end is hinged to the rocker arm, wherein a cavity is provided in the base, wherein coolant is contained in the cavity.

[0006] Furthermore, the rocker arm includes a fixed plate and a rod, the rod is rotatably connected to the fixed plate, the fixed plate is fixedly connected to the base, the fixed plate is provided with a plurality of mounting holes, the base is provided with a screw passing through the mounting holes, and the screw is connected to a locking nut.

[0007] Furthermore, the bottom of the cavity is connected to an air distribution pipe, the air distribution pipe is connected to a first pipeline, the first pipeline is connected to an air outlet of an air pump, and an air inlet of the air pump is provided with an air filter.

[0008] Furthermore, the coolant is water, and the side of the cavity is connected with a rotating joint, the rotating joint is connected with one end of the L-shaped tube, the other end of the L-shaped tube is provided with a threaded joint, the threaded joint is threadedly connected with the opening of the water storage container, and the side of the base is provided with a clamp for fixing the water storage container.

[0009] Furthermore, the clamp is C-shaped, the side surface of the clamp is fixedly connected to the base, and the water storage container is cylindrical.

[0010] Furthermore, the clamp is elastic, and the opening of the clamp faces the side.

[0011] Furthermore, a transparent observation window is provided on the side of the water storage container, and a scale is provided on the observation window.

[0012] The beneficial effects of the utility model are: the pneumatic flap valve is more stable, and the problem of the rotary valve being easily stuck during operation can be solved, thereby reducing the hidden dangers of carbonization and fire when large shavings and the like are retained in the collection chamber for a long time. At the same time, a cavity is provided in the base, and a coolant is filled in the cavity. The coolant can play a cooling role, reduce the temperature in the base and the collection chamber, and further reduce the hidden dangers of carbonization and fire when large shavings and the like are retained in the collection chamber for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of a switchable pneumatic flap valve in Example 1 of the present application;

[0014] Figure 2 This is a schematic structural diagram of a switchable pneumatic flap valve in Example 2 of the present application;

[0015] Description of Figure Numbers:

[0016] 1. Base; 2. Collecting chamber; 3. First pneumatic valve plate; 4. Second pneumatic valve plate; 5. Cylinder; 6. Rocker arm; 7. Flap valve; 8. Cavity; 9. Coolant; 10. Fixed plate; 11. Rod; 12. Mounting hole; 13. Screw; 14. Locking nut; 15. Air distribution pipe; 16. First pipeline; 17. Air pump; 18. Rotating joint; 19. L-shaped pipe; 20. Threaded joint; 21. Water storage container; 22. Chuck; 23. Observation window; 24. Scale; 25. Air filter. DETAILED DESCRIPTION

[0017] The technical solution of the utility model is further elaborated in detail below in conjunction with the drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the utility model. The terms used herein in the specification of the utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. In the following description, the expression "some embodiments" is involved, which describes a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0018] It should also be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "inside", "outside", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0019] Example 1

[0020] Please refer to the attached Figure 1 The present application provides a switchable pneumatic flap valve, including a base 1, a collecting chamber 2 is provided in the base 1, a first pneumatic valve plate 3 and a second pneumatic valve plate 4 are provided in the collecting chamber 2, the first pneumatic valve plate 3 is located above the second pneumatic valve plate 4, the first pneumatic valve plate 3 and the second pneumatic valve plate 4 both include a cylinder 5, a rocker rod 116 and a flap valve 7, the flap valve 7 is fixedly connected to the rocker rod 116, the rocker rod 116 is rotatably connected to the base 1, one end of the cylinder 5 is hinged to the base 1, and the other end is hinged to the rocker rod 116, a cavity 8 is provided in the base 1, and a coolant 9 is filled in the cavity 8. When the wet wood shavings enter the drying pipe, large wood shavings or foreign objects and debris are collected in the collection chamber 2 of the base 1. At this time, the cylinder 5 of the first pneumatic valve plate 3 extends, pushing the swing rod 116 of the first pneumatic valve plate 3 to open the flap valve 7, and the cylinder 5 of the second pneumatic valve plate 4 shortens, driving the swing rod 116 of the second pneumatic valve plate 4 to close the flap valve 7, and large wood shavings and foreign objects enter the upper part of the collection chamber 2. After a certain period of collection, the cylinder 5 of the first pneumatic valve plate 3 shortens, driving the swing rod 116 of the first pneumatic valve plate 3 to close the flap valve 7, and the cylinder 5 of the second pneumatic valve plate 4 extends, pushing the swing rod 116 of the second pneumatic valve plate 4 to open the flap valve 7, and large wood shavings and foreign objects fall from the collection chamber 2 to the collection bucket below to be collected. The pneumatic flap valve 7 is more stable, and can solve the problem that the rotary valve is easily stuck during operation, thereby reducing the hidden dangers of carbonization and fire when large wood shavings and the like are retained in the collection chamber 2 for a long time. At the same time, a cavity 8 is provided in the base 1, and a coolant 9 is filled in the cavity 8. The coolant 9 can play a cooling role, reduce the temperature in the base 1 and the collection chamber 2, and further reduce the hidden dangers of carbonization and fire when large wood shavings and the like are retained in the collection chamber 2 for a long time.

[0021] Specifically, the swing rod 116 includes a fixed plate 10 and a rod 11, the rod 11 is rotatably connected to the fixed plate 10, the fixed plate 10 is fixedly connected to the base 1, the fixed plate 10 is provided with a plurality of mounting holes 12, the base 1 is provided with a screw 1311 passing through the mounting holes 12, and the screw 1311 is connected to a locking nut 14. When the cylinder 5 is extended or shortened, the rod 11 is driven to swing, and the fixed plate 10 is fixed to the fixed plate 10 by bolts and locking nuts 14, which can be easily installed and stably fixed.

[0022] Example 2

[0023] Please refer to the attached Figure 1 The difference between this embodiment and embodiment 1 is that the bottom of the cavity 8 is connected to the air distribution pipe 15, the air distribution pipe 15 is connected to the first pipe 16, the first pipe 16 is connected to the air outlet of the air pump 17, and the air inlet of the air pump 17 is provided with an air filter 25. When the air pump 17 is working, air is supplied to the air distribution pipe 15 through the first pipe 16, and the bubbles move upward to drive the water in the cavity 8 to flow, promoting the heat exchange between the coolant 9 and the base 1. The bubbles increase the contact area between the coolant 9 and the air, promote the evaporation and heat absorption of the coolant 9, and thus reduce the temperature of the base 1. The air moves to the top of the cavity 8 and is discharged from the exhaust port.

[0024] Specifically, the cooling liquid 9 is water, and a rotating joint 18 is connected to the side of the cavity 8, and the rotating joint 18 is connected to one end of the L-shaped tube 19, and a threaded joint 20 is provided at the other end of the L-shaped tube 19, and the threaded joint 20 is threadedly connected to the opening of the water storage container 21, and a clamp 22 for fixing the water storage container 21 is provided on the side of the base 1. After the water storage container 21 is filled with water, it is connected to the threaded joint 20, and then the L-shaped tube 19 is rotated to turn the water storage container 21 upside down, and the water storage container 21 is fixed by the clamp 22. When the water level in the cavity 8 is lower than the rotating joint 18, air enters the water storage container 21 from the rotating joint 18 and the L-shaped tube 19, and the water in the water storage container 21 flows out and enters the cavity 8 until the water level in the cavity 8 is higher than the rotating structure, thereby realizing automatic water replenishment and maintaining the water level in the cavity 8 stable. When the water in the water storage container 21 is drained, the water storage container 21 is taken out to replenish water, and then the replenished water storage container 21 is installed on the threaded joint 20 and clamped by the clamp 22.

[0025] Specifically, the clamp 22 is C-shaped, the side of the clamp 22 is fixedly connected to the base 1, and the water storage container 21 is cylindrical, so that the water storage container 21 can be fixed conveniently and stably.

[0026] Specifically, the clamp 22 is elastic, and the opening of the clamp 22 faces the side. The water storage container 21 is clamped into the clamp 22 during rotation.

[0027] Specifically, a transparent observation window 23 is provided on the side of the water storage container 21, and a scale 24 is provided on the observation window 23 to facilitate observation and judgment of the water amount in the water storage container 21.

[0028] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. The protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A switchable pneumatic flap valve, characterized in that: The invention comprises a base (1), wherein a collecting chamber (2) is provided in the base (1), wherein a first pneumatic valve plate (3) and a second pneumatic valve plate (4) are provided in the collecting chamber (2), wherein the first pneumatic valve plate (3) is located above the second pneumatic valve plate (4), wherein the first pneumatic valve plate (3) and the second pneumatic valve plate (4) both comprise a cylinder (5), a rocker arm (6) and a flap valve (7), wherein the flap valve (7) is fixedly connected to the rocker arm (6), wherein the rocker arm (6) is rotatably connected to the base (1), wherein one end of the cylinder (5) is hinged to the base (1), and the other end is hinged to the rocker arm (6), wherein a cavity (8) is provided in the base (1), wherein a cooling liquid (9) is contained in the cavity (8).

2. A switchable pneumatic flap valve according to claim 1, characterized in that: The swing arm (6) comprises a fixed plate (10) and a rod (11), wherein the rod (11) is rotatably connected to the fixed plate (10), the fixed plate (10) is fixedly connected to the base (1), the fixed plate (10) is provided with a plurality of mounting holes (12), the base (1) is provided with a screw rod (13) passing through the mounting hole (12), and the screw rod (13) is connected to a locking nut (14).

3. A switchable pneumatic flap valve according to claim 1, characterized in that: The bottom of the cavity (8) is connected to an air distribution pipe (15), the air distribution pipe (15) is connected to a first pipeline (16), the first pipeline (16) is connected to an air outlet of an air pump (17), and an air filter (25) is provided at an air inlet of the air pump (17).

4. A switchable pneumatic flap valve according to claim 1, characterized in that: The cooling liquid (9) is water. A rotating joint (18) is connected to the side of the cavity (8). The rotating joint (18) is connected to one end of an L-shaped tube (19). The other end of the L-shaped tube (19) is provided with a threaded joint (20). The threaded joint (20) is threadedly connected to the opening of a water storage container (21). A clamp (22) for fixing the water storage container (21) is provided on the side of the base (1).

5. A switchable pneumatic flap valve according to claim 4, characterized in that: The clamp (22) is C-shaped, the side surface of the clamp (22) is fixedly connected to the base (1), and the water storage container (21) is cylindrical.

6. A switchable pneumatic flap valve according to claim 5, characterized in that: The clamp (22) is elastic, and the opening of the clamp (22) faces the side.

7. A switchable pneumatic flap valve according to claim 4, characterized in that: A transparent observation window (23) is provided on the side of the water storage container (21), and a scale (24) is provided on the observation window (23).

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