Manual and pneumatic gate valve

Abstract

The utility model provides a manual and pneumatic gate valve, and belongs to the technical field of grain and oil machinery. Comprising a shell, and a partition plate is arranged in the shell to divide the interior of the shell into a driving cavity and a valve cavity; a manual valve plate and a pneumatic valve plate are connected into the shell in a sliding mode, the pneumatic valve plate and the manual valve plate can slide back and forth between the driving cavity and the valve cavity, and the manual valve plate is located above the pneumatic valve plate. A sleeve is fixed below the manual valve plate, a screw rod is rotationally connected in the driving cavity, one end of the screw rod is inserted in the sleeve, and a rotating wheel is fixed at the other end of the screw rod; a section of thread meshed with the screw rod is arranged on the inner wall of one end, close to the screw rod, of the sleeve, and an end plate is arranged at the other end of the sleeve for sealing; and in the sliding process of the manual valve plate, the opening end of the sleeve is always in the driving cavity. The device has the advantages of convenience in use, long service life and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of grain and oil machinery and relates to a manual pneumatic gate. Background Art

[0002] Manual pneumatic gates have the advantages of simple structure, small size, flexible process layout, strong sealing, and easy operation. They are installed in the chutes of grain, soybean meal, and other powdery and small bulk materials. The opening of the gate can be manually or pneumatically controlled to control the flow of materials. Through its opening and closing, granular and powdery materials are fed into the conveying and lifting machinery in an orderly manner and enter the next process. Manual airtight gates are particularly conducive to the airtight fumigation and storage of grain.

[0003] Manual pneumatic gates facilitate the transfer of granular and powdered materials to the next process and control the material flow rate. However, when the gate is opened and closed in the manual circuit of existing manual pneumatic gates, the rack connected to the gate is easily clogged with material and other dust and debris. When the gear that controls the gate's movement meshes with the rack on the gate's lower surface, it clashes with the material and debris on the rack, easily causing wear on the gear and rack, thereby shortening the maintenance cycle and service life. Utility Model Content

[0004] The purpose of the utility model is to provide a manual pneumatic gate to solve the above problems in the existing technology, so as to extend the maintenance cycle and service life of the gate.

[0005] The objectives of the utility model can be achieved through the following technical solutions: A manual pneumatic gate, characterized in that the valve includes a shell, a partition is provided in the shell to divide the interior into two chambers, a drive chamber and a valve chamber; a manual valve plate and a pneumatic valve plate are slidably connected in the shell, and both the pneumatic valve plate and the manual valve plate can slide back and forth between the drive chamber and the valve chamber, and the manual valve plate is located above the pneumatic valve plate; a sleeve is fixed below the manual valve plate, and a screw is rotatably connected in the drive chamber, one end of the screw is inserted in the sleeve, and a runner is fixed to the other end of the screw; the inner wall of the sleeve near one end of the screw is provided with a section of thread meshing with the screw, and the other end of the sleeve is provided with an end plate for sealing; and during the sliding process of the manual valve plate, the open end of the sleeve is always in the drive chamber; a cylinder is also fixed in the drive chamber, and the cylinder can drive the pneumatic valve plate to slide back and forth; a plurality of supporting wheels and limit columns are provided on the inner wall of the shell, and the manual valve plate or the pneumatic valve plate slides in a directional manner under the limitation of the supporting wheels and the limit columns.

[0006] Preferably, a through hole is provided on the rotating wheel, a handle is inserted into the through hole, and limit blocks are fixed at both ends of the handle.

[0007] Preferably, a rubber ring is sleeved on the screw.

[0008] The utility model has the advantages:

[0009] 1. In this valve, the pneumatic valve plate is driven by the cylinder to open and close, which can realize remote and rapid opening and closing of the valve; while the manual valve plate is driven by the screw and sleeve, which can adjust the opening degree of the valve at will, thereby realizing the regulation and control of the grain feed amount. The combination of the two makes this valve more convenient to use.

[0010] 2. In this valve, one end of the sleeve is closed, and the other end (open end) is always in the drive chamber, so it is difficult for the screw to adhere to grain, dust and other debris, thereby effectively extending the maintenance cycle and service life of the valve.

[0011] 3. In this valve, only a small section of thread is provided at the opening of the sleeve. This can reduce the rotational resistance of the screw while ensuring the engagement strength, making the manual circuit easier to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural diagram of this manual pneumatic valve.

[0013] Figure 2 It is a three-dimensional structural diagram of the pneumatic valve from another perspective.

[0014] Figure 3 This is a schematic diagram of the internal structure of this manual pneumatic valve.

[0015] In the figure, 1. shell; 11. partition; 12. support wheel; 13. limit column; 2. drive chamber; 3. valve chamber; 4. manual valve plate; 5. pneumatic valve plate; 6. sleeve; 7. screw; 71. rubber ring; 8. rotating wheel; 81. handle; 82. limit block; 9. cylinder. DETAILED DESCRIPTION

[0016] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0017] like Figure 1 、 Figure 2 and Figure 3As shown, a manual pneumatic gate comprises a housing 1, wherein a partition plate 11 is provided in the housing 1 to divide the interior thereof into two chambers, a drive chamber 2 and a valve chamber 3; a manual valve plate 4 and a pneumatic valve plate 5 are slidably connected in the housing 1, and both the pneumatic valve plate 5 and the manual valve plate 4 can slide back and forth between the drive chamber 2 and the valve chamber 3, and the manual valve plate 4 is located above the pneumatic valve plate 5; a sleeve 6 is fixed below the manual valve plate 4, and a screw 7 is rotatably connected in the drive chamber 2, and one end of the screw 7 is inserted in the sleeve 6, and the screw 7 is rotated. A rotating wheel 8 is fixed to the other end; a thread engaging with the screw 7 is provided on the inner wall of the sleeve 6 near one end of the screw 7, and an end plate is provided at the other end of the sleeve 6 for sealing; and during the sliding process of the manual valve plate 4, the open end of the sleeve 6 is always in the driving chamber 2; a cylinder 9 is also fixed in the driving chamber 2, and the cylinder 9 can drive the pneumatic valve plate 5 to slide back and forth; a number of supporting rollers 12 and limiting columns 13 are provided on the inner wall of the shell 1, and the manual valve plate 4 or the pneumatic valve plate 5 slides in a directional manner under the limitation of the supporting rollers 12 and the limiting columns 13.

[0018] In this manual pneumatic valve, the pneumatic valve plate 5 is driven by the cylinder 9 to open and close, while the manual valve plate 4 is driven by the screw 7 and sleeve 6. The manual valve plate 4 can adjust the opening degree of the valve at will, thereby adjusting and controlling the grain feed amount, and the pneumatic valve plate 5 can realize remote and rapid opening and closing of the valve, making this valve more convenient to use. In this valve, one end of the sleeve 6 is closed, and the other end (open end) is always in the drive chamber 2. Since the grain does not pass through the drive chamber 2, it is difficult for the screw 7 to adhere to grain, dust and other debris, thereby effectively extending the maintenance cycle and service life of this valve. In this valve, only a small section of thread is provided at the opening of the sleeve 6. This can reduce the rotational resistance of the screw 7 while ensuring the meshing strength, making its manual circuit easier to operate.

[0019] like Figure 1 and Figure 2 As shown, a through hole is provided on the rotating wheel 8, and a handle 81 is inserted into the through hole, and limit blocks 82 are fixed at both ends of the handle 81; a rubber ring 71 is sleeved on the screw 7. The handle 81 is inserted into the through hole so that when we need to rotate the rotating wheel 8, we can pull it out, and when we don't need it, we can push it in. In actual use, this valve can effectively prevent the staff from accidentally touching the turntable and turning it, causing the opening degree of the manual valve plate 4 to be incorrectly changed. More importantly, when this valve is packaged and shipped, its packaging size can be slightly reduced, thereby saving packaging materials, and its entire structure has no external protrusions, making the packaging materials less likely to be damaged. The rubber ring 71 on the screw 7 can play a blocking and buffering role, preventing the screw 7 from excessively rotating and causing the threads on the screw 7 or sleeve 6 to slip.

[0020] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A manual pneumatic gate, characterized in that: The valve comprises a housing (1), wherein a partition (11) is provided in the housing (1) to divide the interior of the housing into two chambers, namely a drive chamber (2) and a valve chamber (3); a manual valve plate (4) and a pneumatic valve plate (5) are slidably connected in the housing (1), and both the pneumatic valve plate (5) and the manual valve plate (4) can slide back and forth between the drive chamber (2) and the valve chamber (3), and the manual valve plate (4) is located above the pneumatic valve plate (5); a sleeve (6) is fixed below the manual valve plate (4), and a screw (7) is rotatably connected in the drive chamber (2), one end of the screw (7) is inserted in the sleeve (6), and the other end of the screw (7) is inserted into the sleeve (6). A rotating wheel (8) is fixed at one end of the housing (1); a thread engaging with the screw (7) is provided on the inner wall of the sleeve (6) near one end of the screw (7); an end plate is provided at the other end of the sleeve (6) for sealing; and during the sliding process of the manual valve plate (4), the open end of the sleeve (6) is always in the driving chamber (2); a cylinder (9) is also fixed in the driving chamber (2), and the cylinder (9) can drive the pneumatic valve plate (5) to slide back and forth; a plurality of supporting wheels (12) and limiting columns (13) are provided on the inner wall of the housing (1), and the manual valve plate (4) or the pneumatic valve plate (5) slides in a directional manner under the limitation of the supporting wheels (12) and the limiting columns (13).

2. A manual pneumatic gate according to claim 1, characterized in that: The rotating wheel (8) is provided with a through hole, a handle (81) is inserted into the through hole, and limit blocks (82) are fixed at both ends of the handle (81).

3. A manual pneumatic gate according to claim 1, characterized in that: The screw rod (7) is sleeved with a rubber ring (71).

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