Exhaust pipe opening and closing control device

Abstract

This utility model discloses an exhaust pipe opening and closing control device, including a three-way valve, a cylinder, and a sealing plate. The sealing plate is located on the dust removal exhaust pipe. One end of the three-way valve is connected to a main air source pipe, and the two outlets of the three-way valve are respectively connected to an inlet pipe A and an inlet pipe B. The other ends of inlet pipe A and inlet pipe B are respectively connected to the two ends of the cylinder. The extension rod of the cylinder is connected to the rotating shaft and fixing rod of the sealing plate. When the sealing plate is perpendicular to the direction of the dust removal exhaust pipe, the dust removal exhaust pipe is blocked by the sealing plate; when the sealing plate is parallel to the direction of the dust removal exhaust pipe, the dust removal exhaust pipe is opened. This utility model, by setting up a three-way valve, a cylinder, and a sealing plate, and through a pneumatic remote control device for opening and closing the three-way valve, realizes the rapid opening and closing of the dust removal exhaust pipe. During the production process, the opening and closing of the dust removal exhaust pipe can be quickly and accurately controlled according to the operation of the welding equipment, effectively improving the working efficiency of the dust removal system and saving energy.

Description

Technical Field

[0001] This utility model specifically relates to an exhaust pipe opening and closing control device. Background Technology

[0002] Welding is a fundamental process in the automotive industry and is widely used in production. Gas-shielded welding, in particular, generates significant amounts of welding fumes, which must be filtered and treated by specialized environmental protection equipment before being released. A dust collection system covering the entire production area automatically opens or closes the exhaust vents according to the operating status of the welding equipment, thereby achieving energy conservation, reducing consumption, and improving dust removal efficiency. Currently, the dust collection vents of welding equipment are located at the top of the equipment, requiring manual access to open and close valves. This is relatively cumbersome in practice, and frequent climbing poses a risk of falls from height. Therefore, a remotely controllable exhaust vent opening and closing device is being considered, allowing for manual operation from the ground to reduce safety risks and improve work efficiency.

[0003] In view of the above, this utility model is hereby proposed. Utility Model Content

[0004] The purpose of this utility model is to provide an exhaust pipe opening and closing control device, which realizes the rapid opening and closing of the exhaust pipe through a remote control device.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] An exhaust pipe opening and closing control device includes a three-way valve, a cylinder, and a sealing plate. The sealing plate is located on the dust removal exhaust pipe. One end of the three-way valve is connected to a main air source pipe, and the two outlets of the three-way valve are respectively connected to an inlet pipe A and an inlet pipe B. The other ends of inlet pipe A and inlet pipe B are respectively connected to the two ends of the cylinder. The extension rod of the cylinder is connected to the rotating shaft and the fixing rod of the sealing plate. When the sealing plate is perpendicular to the direction of the dust removal exhaust pipe, the dust removal exhaust pipe is blocked by the sealing plate. When the sealing plate is parallel to the direction of the dust removal exhaust pipe, the dust removal exhaust pipe is opened.

[0007] Preferably, it also includes a cylinder connecting rod and a connecting handle, the connecting handle is connected to the cylinder connecting rod, the cylinder telescopic rod is connected to the cylinder connecting rod, a portion of the sealing plate fixing rod protrudes through the dust removal exhaust pipe and is located outside the dust removal exhaust pipe, and the portion of the sealing plate fixing rod protruding through the dust removal exhaust pipe is connected to the connecting handle.

[0008] Furthermore, the three-way valve is equipped with a switch, which connects the three-way valve to the intake pipe A and the intake pipe B. By controlling the switch, the cylinder is connected to the three-way valve through the intake pipe A and the intake pipe B.

[0009] Furthermore, the mating hole for connecting the handle to the cylinder connecting rod is an oblong hole.

[0010] Beneficial technical effects:

[0011] This utility model, by setting up a three-way air valve, a cylinder, and a sealing plate, and using a pneumatic remote control device to switch the three-way air valve on and off, can realize the rapid opening and closing of the dust removal exhaust pipe. In actual production, it can quickly and accurately open and close the dust removal exhaust pipe based on whether the welding equipment is working, effectively improving the working efficiency of the dust removal system and saving energy and reducing consumption. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the structure of the exhaust pipe opening and closing control device of this utility model.

[0014] Figure 2 This is a schematic diagram of the sealing plate structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the three-dimensional structure of the sealing plate of this utility model.

[0016] Figure 4 This is a schematic diagram of the structure of the exhaust pipe opening and closing control device of this utility model in the closed state.

[0017] Figure 5 This is a schematic diagram of the open state structure of the exhaust pipe opening and closing control device of this utility model.

[0018] The following are the annotations of the attached diagram of this exhaust pipe opening and closing control device. The product can be clearly understood through the attached diagram and corresponding annotations.

[0019] In the diagram: 1. Welding equipment; 2. Dust removal and exhaust pipe; 3. Connecting handle; 4. Sealing plate fixing rod; 5. Sealing plate; 6. Cylinder connecting rod; 7. Cylinder; 8. Inlet pipe B; 9. Inlet pipe A; 10. Main air source pipe; 11. Three-way valve. Detailed Implementation

[0020] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0021] Reference Figure 1-3As shown, an exhaust pipe opening and closing control device is used to control the opening and closing of the dust removal exhaust pipe 2 above the welding equipment 1. It includes a three-way valve 11, a cylinder 7, and a sealing plate 5. The sealing plate 5 is located on the dust removal exhaust pipe 2. One end of the three-way valve 11 is connected to the main air source pipe 10. The two air outlets of the three-way valve 11 are respectively connected to the air inlet pipe A9 and the air inlet pipe B8. The other ends of the air inlet pipe A9 and the air inlet pipe B8 are respectively connected to the two ends of the cylinder 7. The telescopic rod of the cylinder 7 is connected to the rotating shaft of the sealing plate 5 and the sealing plate fixing rod 4. When the sealing plate 5 is perpendicular to the direction of the dust removal exhaust pipe 2, the dust removal exhaust pipe 2 is blocked by the sealing plate 5. When the sealing plate 5 is parallel to the direction of the dust removal exhaust pipe 2, the dust removal exhaust pipe 2 is opened.

[0022] It also includes a cylinder connecting rod 6 and a connecting handle 3. The connecting handle 3 is connected to the cylinder connecting rod 6. The telescopic rod of the cylinder 7 is connected to the cylinder connecting rod 6. Part of the sealing plate fixing rod 4 extends out of the dust removal exhaust pipe 2 and is located outside the dust removal exhaust pipe 2. The part of the sealing plate fixing rod 4 that extends out of the dust removal exhaust pipe 2 is connected to the connecting handle 3. The rotation of the connecting handle 3 drives the sealing plate fixing rod 4 to rotate, thereby driving the sealing plate fixing rod 4 to rotate and realize the rotation of the sealing plate 5.

[0023] The mating hole when the connecting handle 3 is connected to the cylinder connecting rod 6 is an oblong hole. When the cylinder 7 is pushed forward, the oblong hole absorbs the difference in horizontal vector during rotation.

[0024] The three-way air valve 11 is equipped with a switch. The three-way air valve 11 is connected to the intake pipe A9 and the intake air pipe B8 through the switch. The cylinder 7 is connected to the three-way air valve 11 through the intake pipe A9 and the intake air pipe B8 through the switch control.

[0025] Reference Figure 4 When welding equipment 1 is not working, the dust removal exhaust pipe 2 needs to be shut off. At this time, the three-way air valve 11 is manually moved to position A. Compressed gas flows into the telescopic rod end of cylinder 7 through the air inlet pipe A9. The telescopic rod of cylinder 7 retracts during its return stroke, and the cylinder connecting rod 6 moves to the left to the dead point. The connecting handle 3 drives the sealing plate fixing rod 4 to rotate counterclockwise, so that the sealing plate 5 reaches a position perpendicular to the dust removal exhaust pipe 2, thus blocking the dust removal exhaust pipe 2.

[0026] Reference Figure 5 When welding equipment 1 is working, the dust removal exhaust pipe 2 needs to be opened. At this time, the three-way air valve 11 is manually moved to position B. Compressed gas flows into the rear end of cylinder 7 through the air inlet pipe B. The cylinder 7 is opened and the cylinder connecting rod 6 moves to the right to the dead point. The connecting handle 3 drives the sealing plate fixing rod 4 to rotate counterclockwise, so that the sealing plate 5 reaches the position parallel to the dust removal exhaust pipe 2, and the dust removal exhaust pipe 2 is opened smoothly, thereby achieving effective dust removal and filtration.

[0027] This utility model, by setting up a three-way air valve 11, a cylinder 7, and a sealing plate 5, enables the rapid opening and closing of the dust removal exhaust pipe 2 through a pneumatic remote control device for opening and closing the three-way air valve. In actual production, the opening and closing of the dust removal exhaust pipe 2 can be quickly and accurately determined based on whether the welding equipment 1 is working, effectively improving the working efficiency of the dust removal system and saving energy and reducing consumption, while also reducing the safety risks of manual operation and improving work efficiency.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An exhaust pipe opening and closing control device characterized by comprising: The device includes a three-way valve (11), a cylinder (7), and a sealing plate (5). The sealing plate (5) is located on the dust removal exhaust pipe (2). One end of the three-way valve (11) is connected to the main air source pipe (10). The two outlets of the three-way valve (11) are respectively connected to the air inlet pipe A (9) and the air inlet pipe B (8). The other ends of the air inlet pipe A (9) and the air inlet pipe B (8) are respectively connected to the two ends of the cylinder (7). The telescopic rod of the cylinder (7) is connected to the rotating shaft of the sealing plate (5) and the sealing plate fixing rod (4). When the sealing plate (5) is perpendicular to the direction of the dust removal exhaust pipe (2), the dust removal exhaust pipe (2) is blocked by the sealing plate (5). When the sealing plate (5) is parallel to the direction of the dust removal exhaust pipe (2), the dust removal exhaust pipe (2) is opened.

2. The exhaust passage opening and closing control device according to claim 1, characterized by, It also includes a cylinder connecting rod (6) and a connecting handle (3). The connecting handle (3) is connected to the cylinder connecting rod (6). The telescopic rod of the cylinder (7) is connected to the cylinder connecting rod (6). A portion of the sealing plate fixing rod (4) extends out of the dust removal exhaust pipe (2) and is located outside the dust removal exhaust pipe (2). The portion of the sealing plate fixing rod (4) extending out of the dust removal exhaust pipe (2) is connected to the connecting handle (3).

3. The exhaust passage opening and closing control device according to claim 2, characterized by, The three-way valve (11) is equipped with a switch. The three-way valve (11) is connected to the intake pipe A (9) and the intake pipe B (8) by switching the three-way valve (11). By controlling the switch, the cylinder (7) is connected to the three-way valve (11) through the intake pipe A (9) and the intake pipe B (8).

4. The exhaust passage opening and closing control device according to claim 2, characterized by The mating hole between the connecting handle (3) and the cylinder connecting rod (6) is an oblong hole.

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