Portable pneumatic gate valve

Abstract

The invention relates to the technical field of gate valves, in particular to a portable pneumatic gate valve which comprises a valve body, a sealing cover plate, a valve element and a pipeline, the valve body is a rectangular plate, the valve element is slidably inserted in the valve body, the valve body is provided with an insertion groove allowing the valve element to be slidably inserted in, the sealing cover plate is arranged in a U shape and connected to the outside of the valve body, and the pipeline is arranged in the insertion groove. A mounting hole is formed in the sealing cover plate, the pipeline is connected into the mounting hole, an inserting seam allowing the valve element to penetrate through is formed in the pipeline, a first pushing air cylinder is connected to the sealing cover plate, a connecting plate is connected to the end of the valve element, first shaft fixing seats are connected to the connecting plate, and the two first shaft fixing seats correspond to the first pushing air cylinder; a piston rod of the first pushing air cylinder is connected to the first shaft fixing base, and the valve body is further provided with a purging assembly used for cleaning materials in the inserting groove. The pneumatic gate valve has the effect of solving the problems that a pneumatic gate valve in the market is large in size, materials are prone to being accumulated at the valve element, and consequently the valve element cannot enter and exit normally.

Description

Technical Field

[0001] The present invention relates to the field of flap valve technology, and in particular to a lightweight pneumatic flap valve. Background Art

[0002] Copper clad laminate, as the base material of PCB, has a wide range of application prospects and is required in almost any electronic device. According to the prediction of authoritative institutions, the PCB market will maintain continuous growth in the next five years with good development prospects. In the dispensing glue processing link of the copper clad laminate base material, an automatic vacuum negative pressure powder feeding system is needed, and a flap valve needs to be set in the powder feeding system to cut off or conduct the powder feeding pipeline.

[0003] However, the size of the existing pneumatic flap valves on the market is particularly large. The main reason is that the cylinder is placed outside the valve body, and a connecting and guiding mechanism needs to be set, which greatly increases the length dimension of the flap valve. Moreover, the existing products cannot achieve automatic cleaning, and materials are likely to accumulate at the valve core, resulting in the valve core being unable to move in and out normally and losing the meaning of sealing. Summary of the Invention

[0004] In order to improve the problems that the size of the pneumatic flap valve on the market is large and materials are likely to accumulate at the valve core, resulting in the valve core being unable to move in and out normally, the present application provides a lightweight pneumatic flap valve.

[0005] The lightweight pneumatic flap valve provided by the present application adopts the following technical solutions:

[0006] A lightweight pneumatic flap valve includes a valve body, a sealing cover plate, a valve core and a pipeline. The valve body is a rectangular plate, the valve core is slidably inserted on the valve body, a slot for the valve core to slide and insert is opened on the valve body, the sealing cover plate is arranged in a "C" shape, the sealing cover plate is connected to the outside of the valve body, an installation hole is opened on the sealing cover plate, the installation hole communicates with the slot, the pipeline is connected in the installation hole, an insertion slot for the valve core to pass through is opened on the pipeline, a first pushing cylinder is connected to the sealing cover plate, the first pushing cylinder is arranged along the length direction of the sealing cover plate, and one first pushing cylinder is respectively arranged on both sides of one plate surface of the sealing cover plate. An end of the valve core is connected with a connecting plate, two first shaft fixing seats corresponding to the first pushing cylinder are connected to the connecting plate, and a piston rod of the first pushing cylinder is connected to the first shaft fixing seat. A purging assembly for cleaning materials in the slot is further arranged on the valve body.

[0007] Preferably, the purge assembly includes a push block, a connecting rod, an air nozzle, an air delivery hose, a second shaft fixing seat and a second pushing cylinder, the push block is slidably arranged on the valve body, the valve body is provided with a groove for the push block to be inserted, the groove is communicated with the slot, the push block is respectively provided with one on the opposite sides of the valve body, the length of the push block is greater than the diameter of the pipeline, the connecting rod is arranged in an "L" shape, one end of the connecting rod is connected to the push block, the valve body is provided with a through hole for the connecting rod to pass through, the second shaft fixing seat is connected to the other end of the connecting rod, and the second pushing cylinder The cylinder is connected to the sealing cover plate, the second pushing cylinder is located on the plate surface of the sealing cover plate facing away from the first pushing cylinder, the piston rod of the second pushing cylinder is connected to the second shaft fixing seat, the push block is provided with a mounting groove, the mounting groove is arranged along the width direction of the push block, and the mounting groove is evenly arranged in a plurality of ways along the length direction of the push block, the air nozzle is connected to the mounting groove, the air supply hose is connected to the air nozzle, the air supply hose is externally connected to an air supply device, the push block is provided with an air hole, the air hole is communicated with the mounting groove, and the air hole is inclined downward.

[0008] Preferably, the push block is connected with a guide rod, the guide rod is arranged in a direction perpendicular to the push block, one guide rod is respectively provided at both ends of the push block, and the valve body is provided with a guide hole for the guide rod to pass through.

[0009] Preferably, a sealing gasket is attached to the connecting plate, and the sealing gasket is located on the surface of the connecting plate facing the valve body.

[0010] Preferably, the sealing cover plate and the valve body are provided with positioning posts, the sealing cover plate and the valve body are provided with through holes for the positioning posts to pass through, both ends of the positioning posts are connected with fixing bolts, the valve core is provided with a positioning groove for the positioning post to pass through, and the positioning groove is arranged along the length direction of the valve core.

[0011] Preferably, the sealing cover plate and the valve body may be connected by bolts.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] The present invention provides a lightweight pneumatic gate valve, comprising a valve body, a sealing cover plate, a valve core, a pipeline, a first pushing cylinder, a connecting plate, a first shaft fixing seat and a purge assembly. By arranging the first pushing cylinder on the sealing cover plate, the longitudinal volume of the device is reduced, which is beneficial to reducing the volume of the pneumatic gate valve. When sealing, the first pushing cylinder drives the valve core to move through the connecting plate, so that the valve core is inserted in the middle of the pipeline; when cleaning, the purge assembly is used to purge materials from both sides of the pipeline to avoid material accumulation on the moving path of the valve core, thereby achieving the effect of improving the problem that the pneumatic gate valves on the market are large in size and materials are easily accumulated on the valve core, resulting in the valve core being unable to enter and exit normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a first perspective view of a portable pneumatic gate valve in an embodiment of the present application;

[0015] Figure 2 This is a second viewing angle diagram of the portable pneumatic gate valve in the embodiment of the present application;

[0016] Figure 3 is a schematic diagram for illustrating a purge assembly in an embodiment of the present application;

[0017] Figure 4 It is a schematic diagram used to illustrate the gas nozzle in the embodiment of the present application.

[0018] Explanation of the accompanying drawings: 1. valve body; 2. sealing cover plate; 21. first push cylinder; 3. valve core; 31. connecting plate; 311. first shaft fixing seat; 312. sealing gasket; 32. positioning groove; 4. pipeline; 5. purge assembly; 51. push block; 511. air hole; 512. guide rod; 52. connecting rod; 53. air nozzle; 54. air supply hose; 55. second shaft fixing seat; 56. second push cylinder; 6. positioning column; 61. fixing bolt. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the scheme of the present invention, the scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiment is only an embodiment of a part of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships 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 position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 an indirect connection through an intermediate medium, or it can be a connection between the two original components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] An embodiment of the present application discloses a lightweight pneumatic knife gate valve. Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the lightweight pneumatic knife gate valve includes a valve body 1, a sealing cover plate 2, a valve core 3 and a pipeline 4. The valve body 1 is a rectangular plate. The valve core 3 is slidably inserted on the valve body 1. The valve core 3 is arranged along the length direction of the valve body 1. A slot for the valve core 3 to slide and insert is provided on the valve body 1. The sealing cover plate 2 is arranged in a "C" shape. The sealing cover plate 2 is connected to the outside of the valve body 1. An installation hole is provided on the sealing cover plate 2. The installation hole communicates with the slot. The pipeline 4 is connected in the installation hole. An insertion slot for the valve core 3 to pass through is provided on the pipeline 4. A first push cylinder 21 is connected to the sealing cover plate 2. The first push cylinder 21 is arranged along the length direction of the sealing cover plate 2. One first push cylinder 21 is provided on each side of one plate surface of the sealing cover plate 2. An end of the valve core 3 is connected with a connecting plate 31. A first shaft fixing seat 311 is connected to the connecting plate 31. Two first shaft fixing seats 311 corresponding to the first push cylinder 21 are provided. The piston rod of the first push cylinder 21 is connected to the first shaft fixing seat 311. A purging assembly 5 for cleaning the materials in the slot is further provided on the valve body 1.

[0022] By arranging the first push cylinder 21 on the sealing cover plate 2, the longitudinal volume of the device is reduced, which is beneficial to reducing the volume of the pneumatic knife gate valve. During sealing, the first push cylinder 21 drives the valve core 3 to move through the connecting plate 31, so that the valve core 3 is inserted in the middle of the pipeline 4. During cleaning, the purging assembly 5 is used to purge the materials from both sides of the pipeline 4, avoiding the accumulation of materials on the moving path of the valve core 3, thereby achieving the effect of improving the problems that the pneumatic knife gate valve on the market has a large size and the valve core 3 is prone to material accumulation, resulting in the abnormal entry and exit of the valve core 3.

[0023] The purge assembly 5 includes a push block 51, a connecting rod 52, an air nozzle 53, an air delivery hose 54, a second shaft fixing seat 55 and a second push cylinder 56. The push block 51 is slidably arranged on the valve body 1. The valve body 1 is provided with a groove for the push block 51 to be inserted into. The groove is communicated with the slot. The push block 51 is respectively provided with one on the opposite sides of the valve body 1. The length of the push block 51 is greater than the diameter of the pipeline 4. The connecting rod 52 is arranged in an "L" shape. One end of the connecting rod 52 is connected to the push block 51. The valve body 1 is provided with a through hole for the connecting rod 52 to pass through. The second shaft fixing seat 55 is connected to the other end of the connecting rod 52. The second push cylinder 56 is connected to the sealing cover plate 2. The second push cylinder 56 is located on the plate surface of the sealing cover plate 2 facing away from the first push cylinder 21. The piston rod of the second push cylinder 56 is connected to the second shaft fixing seat 55. The push block 51 A mounting groove is provided on the push block 51, and the mounting groove is arranged along the width direction of the push block 51. Several mounting grooves are evenly arranged along the length direction of the push block 51. The air nozzle 53 is connected to the mounting groove, and the air hose 54 is connected to the air nozzle 53. The air hose 54 is externally connected to an air supply device (the air supply device is a prior art, so it is not described here). An air hole 511 is provided on the push block 51, and the air hole 511 is communicated with the mounting groove. The air hole 511 is inclined downward. When the material is transported, the second pushing cylinder 56 is used to push the two push blocks 51 closer to each other. At the same time, the air supply device provides high-pressure gas, and the high-pressure gas enters the air hole 511 through the air hose 54 and the air nozzle 53. After the high-pressure gas passes through the air hole 511, the gas is blown into the slot and the slot to blow away the material in the slot and the slot, so as to avoid material clogging and affecting the sealing of the valve core 3.

[0024] A guide rod 512 is connected to the push block 51, and the guide rod 512 is arranged in a direction perpendicular to the push block 51. The guide rod 512 is respectively provided at both ends of the push block 51, and a guide hole for the guide rod 512 to pass through is opened on the valve body 1. By setting the guide rod 512 and the guide hole, it is beneficial to improve the stability of the push block 51 during the movement.

[0025] A sealing gasket 312 is attached to the connecting plate 31, and the sealing gasket 312 is located on the surface of the connecting plate 31 facing the valve body 1. By setting the sealing gasket 312, when the valve core 3 is sealed in the pipeline 4, the connecting plate 31 is blocked in the notch of the slot, and the sealing gasket 312 is beneficial to improve the sealing between the valve body 1 and the connecting plate 31.

[0026] The sealing cover plate 2 and the valve body 1 are provided with positioning posts 6, and both the sealing cover plate 2 and the valve body 1 are provided with through holes for the positioning posts 6 to pass through. Both ends of the positioning posts 6 are connected with fixing bolts 61. The valve core 3 is provided with positioning grooves 32 for the positioning posts 6 to pass through. The positioning grooves 32 are arranged along the length direction of the valve core 3. By arranging the positioning posts 6 and the positioning grooves 32, it is beneficial to improve the stability of the valve body 1 during movement.

[0027] The sealing cover plate 2 and the valve body 1 can be connected by bolts. Such a configuration facilitates the disassembly of the sealing cover plate 2 and the valve body 1, which is beneficial for subsequent maintenance personnel.

[0028] The implementation principle of a lightweight pneumatic gate valve in the embodiment of the present application is as follows: when the material is transported, the second pushing cylinder 56 pushes the two push blocks 51 to move closer to each other, and at the same time, the air supply device provides high-pressure gas, and the high-pressure gas enters the air hole 511 through the air supply hose 54 and the air nozzle 53. After the high-pressure gas passes through the air hole 511, the gas is blown into the slot and the insertion gap, and the high-pressure gas is used to blow away the materials in the slot and the insertion gap. After the materials are blown away, the push block 51 is reset, and then the first pushing cylinder 21 drives the valve core 3 to move toward the inside of the valve body 1, so that the valve core 3 is inserted into the insertion gap of the pipeline 4.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A portable pneumatic gate valve, characterized in that: It includes a valve body (1), a sealing cover plate (2), a valve core (3) and a pipeline (4). The valve body (1) is a rectangular plate. The valve core (3) is slidably inserted on the valve body (1). A slot for the valve core (3) to slide and insert is provided on the valve body (1). The sealing cover plate (2) is arranged in a "C" shape and is connected to the outside of the valve body (1). An installation hole is provided on the sealing cover plate (2), and the installation hole communicates with the slot. The pipeline (4) is connected in the installation hole. An insertion slot for the valve core (3) to pass through is provided on the pipeline (4). A first push cylinder (21) is connected to the sealing cover plate (2). The first push cylinder (21) is arranged along the length direction of the sealing cover plate (2). One first push cylinder (21) is provided on each of the two sides of one plate surface of the sealing cover plate (2). A connecting plate (31) is connected to the end of the valve core (3). A first shaft fixing seat (311) is connected to the connecting plate (31). Two first shaft fixing seats (311) are provided corresponding to the first push cylinder (21). The piston rod of the first push cylinder (21) is connected to the first shaft fixing seat (311). A purging assembly (5) for cleaning the materials in the slot is further provided on the valve body (1).

2. A portable pneumatic gate valve according to claim 1, characterized in that: The purging assembly (5) includes a push block (51), a connecting rod (52), a gas nozzle (53), an air supply hose (54), a second shaft fixing seat (55) and a second push cylinder (56). The push block (51) is slidably arranged on the valve body (1). A groove for the push block (51) to be stuck into is provided on the valve body (1), and the groove communicates with the slot. One push block (51) is provided on each of the two opposite sides of the valve body (1). The length of the push block (51) is greater than the diameter of the pipeline (4). The connecting rod (52) is arranged in an "L" shape. One end of the connecting rod (52) is connected to the push block (51). A through hole for the connecting rod (52) to pass through is provided on the valve body (1). The second shaft fixing seat (55) is connected to the other end of the connecting rod (52). The second push cylinder (56) is connected to the sealing cover plate (2). The second push cylinder (56) is located on the plate surface of the sealing cover plate (2) facing away from the first push cylinder (21). The piston rod of the second push cylinder (56) is connected to the second shaft fixing seat (55). An installation groove is provided on the push block (51). The installation groove is arranged along the width direction of the push block (51). A number of installation grooves are uniformly arranged along the length direction of the push block (51). The gas nozzle (53) is connected in the installation groove. The air supply hose (54) is connected to the gas nozzle (53). The air supply hose (54) is externally connected to a gas supply device. An air hole (511) is provided on the push block (51), and the air hole (511) communicates with the installation groove. The air hole (511) is inclined downward.

3. A portable pneumatic gate valve according to claim 2, characterized in that: The push block (51) is connected to a guide rod (512), the guide rod (512) is arranged in a direction perpendicular to the push block (51), one guide rod (512) is provided at each end of the push block (51), and the valve body (1) is provided with a guide hole for the guide rod (512) to pass through.

4. A portable pneumatic gate valve according to claim 1, characterized in that: A sealing gasket (312) is attached to the connecting plate (31), and the sealing gasket (312) is located on the surface of the connecting plate (31) facing the valve body (1).

5. The portable pneumatic gate valve according to claim 1, characterized in that: The sealing cover plate (2) and the valve body (1) are provided with positioning posts (6), and both the sealing cover plate (2) and the valve body (1) are provided with through holes for the positioning posts (6) to pass through. Both ends of the positioning posts (6) are connected with fixing bolts (61). The valve core (3) is provided with a positioning groove (32) for the positioning posts (6) to pass through, and the positioning groove (32) is arranged along the length direction of the valve core (3).

6. A portable pneumatic gate valve according to claim 1, characterized in that: The sealing cover plate (2) and the valve body (1) can be connected via bolts.

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