Welding dust collection device

Abstract

The utility model relates to a welding dust collection device which comprises an air bellow, a corrugated pipe and a hanging and pulling assembly, the air bellow is provided with a negative pressure cavity, the corrugated pipe is arranged above the air bellow, the bottom end of the corrugated pipe is communicated with the negative pressure cavity, and the hanging and pulling assembly comprises a vertical rod and a pre-pulling piece which are fixedly arranged above the air bellow. The pre-tensioning piece is connected with the vertical rod and the corrugated pipe and is used for bearing the gravity of the corrugated pipe; usually, the corrugated pipe is bent in the direction far away from the vertical rod to be close to the welding point, under the action of gravity, the stress on the connecting position of the corrugated pipe and the air bellow is large, and therefore the vertical rod and the corrugated pipe can be connected through the arranged pre-pulling piece, the pulling force applied to the corrugated pipe is used for counteracting the bending gravity, and the pressure borne by the connecting position of the corrugated pipe and the air bellow is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of dust collectors, in particular to a welding dust suction device. Background Art

[0002] A dust suction device is usually equipped beside a welding machine to ensure the physical health of production line personnel. Currently, the dust suction devices generally have two suction methods: hanging type and vertical type. The hanging type dust suction device includes a dust suction main unit and a corrugated pipe connected to the bottom of the dust suction main unit. The corrugated pipe is suspended above the welding point. The vertical type dust suction device includes a dust suction main unit and a corrugated pipe connected to the top of the dust suction main unit, and the corrugated pipe is bent to make it close to the welding point.

[0003] Among them, for the vertical type dust suction device, reference can be made to a welding machine protection and purification device proposed in the utility model patent with the application number CN202222832536.2. Among them, through the bending of the first corrugated pipe and the second corrugated pipe, the dust suction head is moved to the welding position. Then, the user can bend one end of the flexible bending plate, so that one side of the dust suction head is opened, and the welding part is blocked by the unfolded flexible bending plate to make the dust suction head closer to the welding part.

[0004] However, due to the long-term force and bending of the corrugated pipe, the connection part between it and the welding machine is subjected to a large force and is prone to breakage. Summary of the Utility Model

[0005] In view of this, it is necessary to provide a welding dust suction device to solve the problem that due to the long-term force and bending of the corrugated pipe of the vertical type dust suction device, the connection part between it and the welding machine is subjected to a large force and is prone to breakage.

[0006] The utility model provides a welding dust suction device, which includes an air box, a corrugated pipe and a suspension and tension component. The air box has a negative pressure chamber. The corrugated pipe is arranged above the air box and its bottom end is communicated with the negative pressure chamber. The suspension and tension component includes a vertical rod fixedly arranged above the air box and a pre-tensioning member. The pre-tensioning member connects the vertical rod and the corrugated pipe to bear the gravity of the corrugated pipe.

[0007] Further, the pre-tensioning member includes a winding member, a first pulling rope and a second pulling rope. The winding end of the winding member is connected to the vertical rod via the first pulling rope, and the winding member is connected to the corrugated pipe via the second pulling rope.

[0008] Further, the winding member includes a box body, a rotating shaft and a motor. The rotating shaft is rotatably connected to the box body. One end of the first pulling rope is fixedly connected to the rotating shaft, and the other end of the first pulling rope is connected to the vertical rod. The second pulling rope connects the box body and the corrugated pipe. The motor is fixedly connected to the box body, and the output end of the motor is connected to the rotating shaft.

[0009] Further, it further includes a first switch and a second switch which are installed on the box body and electrically connected to the motor, and the first switch and the second switch are respectively used to drive the motor to rotate forward and backward.

[0010] Further, it further includes a connecting ring sleeved on the corrugated pipe, and the second pull rope is connected to the connecting ring.

[0011] Further, the pre-tensioning member includes an elastic rope connecting the vertical rod and the connecting ring and a handle fixedly connected to the connecting ring.

[0012] Further, it further includes a sliding sleeve sleeved on the vertical rod and slidably connected to the vertical rod and an adjusting screw. The adjusting screw passes through the sliding sleeve and is connected to one of the multiple threaded holes formed on the vertical rod, and the sliding sleeve is connected to the first pull rope.

[0013] Further, the air bellows includes a box body and a blower. A negative pressure chamber is formed inside the box body. The blower is installed on the side wall of the box body, and the air inlet end is communicated with the negative pressure chamber. A filter screen is installed at the air inlet end of the blower.

[0014] Further, it further includes a door plate installed at the opening of the side wall of the box body. The door plate is hinged to the box body to open and close the opening.

[0015] Further, there are two corrugated pipes, and there are two pre-tensioning members which correspond to the two corrugated pipes one by one.

[0016] Compared with the prior art, usually the corrugated pipe is bent in the direction away from the vertical rod to approach the welding point. Under the action of gravity, the connection part between it and the air bellows is subjected to greater force. Therefore, the pre-tensioning member provided can connect the vertical rod and the corrugated pipe, and apply a pulling force to the corrugated pipe to offset the gravity during bending, and reduce the pressure borne by the connection part between the corrugated pipe and the air bellows. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the whole in the welding dust suction device provided by the embodiment of the present invention;

[0018] Figure 2 It is a schematic structural diagram of the pre-tensioning member in the welding dust suction device provided by the embodiment of the present invention;

[0019] Figure 3 It is a schematic structural diagram of the winding member in the welding dust suction device provided by the embodiment of the present invention;

[0020] Figure 4 It is a schematic structural diagram of the air bellows in the welding dust suction device provided by the embodiment of the present invention. Detailed Embodiments

[0021] The preferred embodiments of the present utility model will be specifically described below in conjunction with the accompanying drawings. The accompanying drawings form a part of this application and are used together with the embodiments of the present utility model to illustrate the principles of the present utility model, rather than to limit the scope of the present utility model.

[0022] As Figure 1 shown, the welding dust suction device provided by the present utility model includes a bellows box 100, a corrugated pipe 200, and a suspension and tension component 300. The bellows box 100 has a negative pressure chamber. The corrugated pipe 200 is arranged above the bellows box 100 and its bottom end is connected to the negative pressure chamber. The suspension and tension component 300 includes a vertical rod 310 fixedly arranged above the bellows box 100 and a pre-tensioning member. The pre-tensioning member connects the vertical rod 310 and the corrugated pipe 200 to bear the gravity of the corrugated pipe 200.

[0023] During implementation, usually the corrugated pipe 200 is bent in a direction away from the vertical rod 310 to approach the welding point. Under the action of gravity, the connection part between it and the bellows box 100 is subjected to greater force. Therefore, by arranging the pre-tensioning member, the vertical rod 310 and the corrugated pipe 200 can be connected, and a pulling force is applied to the corrugated pipe 200 to offset the gravity during bending, reducing the pressure borne by the connection part between the corrugated pipe 200 and the bellows box 100.

[0024] The bellows box 100 in this implementation scheme has a negative pressure chamber for sucking external dust into the negative pressure chamber via the corrugated pipe 200.

[0025] As Figure 4 shown, in one embodiment, the bellows box 100 includes a box body 110 and a blower 120. A negative pressure chamber is formed inside the box body 110. The blower 120 is installed on the side wall of the box body 110, and its air inlet end is connected to the negative pressure chamber. A filter screen is installed at the air inlet end of the blower 120.

[0026] This embodiment further includes a door panel 111 installed at the opening on the side wall of the box body 110. The door panel 111 is hinged to the box body 110 to open and close the opening.

[0027] The corrugated pipe 200 in this implementation scheme is arranged above the bellows box 100 and its bottom end is connected to the negative pressure chamber. Through the bending of the corrugated pipe 200, it can be deformed to approach or move away from the welding point.

[0028] Among them, a dust suction head 210 is connected to the top end of the corrugated pipe 200.

[0029] The suspension and tension component 300 in this implementation scheme includes a vertical rod 310 fixedly arranged above the bellows box 100 and a pre-tensioning member. The pre-tensioning member connects the vertical rod 310 and the corrugated pipe 200 to bear the gravity of the corrugated pipe 200.

[0030] As Figure 2As shown, in one embodiment, the pre-tensioning member includes a winding member 321, a first pulling rope 322, and a second pulling rope 323. The winding end of the winding member 321 is connected to the vertical rod 310 via the first pulling rope 322, and the winding member 321 is connected to the corrugated pipe 200 via the second pulling rope 323.

[0031] As Figure 3 shown, wherein, the winding member 321 includes a box body 321a, a rotating shaft 321b, and a motor 321c. The rotating shaft 321b is rotatably connected to the box body 321a. One end of the first pulling rope 322 is fixedly connected to the rotating shaft 321b, and the other end of the first pulling rope 322 is connected to the vertical rod 310. The second pulling rope 323 connects the box body 321a and the corrugated pipe 200. The motor 321c is fixedly connected to the box body 321a, and the output end of the motor 321c is connected to the rotating shaft 321b. Further, a counterweight 321f is installed on one side of the box body 321a away from the motor 321c.

[0032] To facilitate controlling the forward and reverse rotation of the rotating shaft 321b to control the length of the second pulling rope 323, in this embodiment, a first switch 321d and a second switch 321e which are installed on the box body 321a and electrically connected to the motor 321c are further included. The first switch 321d and the second switch 321e are respectively used to drive the motor 321c to rotate forward and reverse.

[0033] In another embodiment, a connecting ring sleeved on the corrugated pipe 200 is further included, and the second pulling rope 323 is connected to the connecting ring.

[0034] Wherein, the pre-tensioning member includes an elastic rope connecting the vertical rod 310 and the connecting ring and a handle fixedly connected to the connecting ring. Grabbing the handle can drive the corrugated pipe 200 to move to a position close to the welding point.

[0035] As Figure 2 shown, in this embodiment, a sliding sleeve 311 sleeved on the vertical rod 310 and slidably connected to the vertical rod 310 and an adjusting screw 312 are further included. The adjusting screw 312 passes through the sliding sleeve 311 and is connected to one of the plurality of threaded holes 313 opened on the vertical rod 310, and the sliding sleeve 311 is connected to the first pulling rope 322.

[0036] In this embodiment, there are two corrugated pipes 200, and there are two pre-tensioning members corresponding to the two corrugated pipes 200 one by one.

[0037] Compared with the prior art: Usually, the corrugated pipe 200 is bent in a direction away from the vertical rod 310 to approach the welding point. Under the action of gravity, the connection part between it and the air box 100 is subjected to a large force. Therefore, by arranging the pre-tensioning member, the vertical rod 310 and the corrugated pipe 200 can be connected, and a pulling force is applied to the corrugated pipe 200 to offset the gravity during bending, reducing the pressure borne by the connection part between the corrugated pipe 200 and the air box 100.

[0038] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model.

Claims

1. Welding dust suction device, characterized in that, Comprising: A bellows having a negative pressure chamber; A corrugated pipe disposed above the bellows and having its bottom end communicating with the negative pressure chamber; A suspension and tension assembly including a vertical rod fixedly disposed above the bellows and a pre-tension member, the pre-tension member connecting the vertical rod and the corrugated pipe for bearing the gravity of the corrugated pipe.

2. The welding dust suction device according to claim 1, wherein, The pre-tension member includes a winding member, a first pulling rope and a second pulling rope. The winding end of the winding member is connected to the vertical rod via the first pulling rope, and the winding member is connected to the corrugated pipe via the second pulling rope.

3. The welding dust suction device according to claim 2, characterized in that The winding member includes a box body, a rotating shaft and a motor. The rotating shaft is rotatably connected to the box body. One end of the first pulling rope is fixedly connected to the rotating shaft, and the other end of the first pulling rope is connected to the vertical rod. The second pulling rope connects the box body and the corrugated pipe. The motor is fixedly connected to the box body, and the output end of the motor is connected to the rotating shaft.

4. The welding dust suction device according to claim 3, characterized in that, It further includes a first switch and a second switch mounted on the box body and electrically connected to the motor. The first switch and the second switch are respectively used to drive the motor to rotate forward and backward.

5. The welding dust suction device according to claim 2, characterized in that, It further includes a connecting ring sleeved on the corrugated pipe, and the second pulling rope is connected to the connecting ring.

6. The welding dust suction device according to claim 5, characterized in that, The pre-tension member includes an elastic rope connecting the vertical rod and the connecting ring and a handle fixedly connected to the connecting ring.

7. The welding dust suction device according to claim 2, characterized in that, It further includes a sliding sleeve sleeved on the vertical rod and slidably connected to the vertical rod and an adjusting screw. The adjusting screw passes through the sliding sleeve and is connected to one of a plurality of threaded holes formed in the vertical rod, and the sliding sleeve is connected to the first pulling rope.

8. The welding dust suction device according to claim 1, characterized in that The bellows includes a box body and a blower. The interior of the box body forms the negative pressure chamber. The blower is installed on the side wall of the box body, and the air inlet end is communicated with the negative pressure chamber. A filter screen is installed at the air inlet end of the blower.

9. The welding dust suction device according to claim 8, characterized in that, It further includes a door plate installed at the opening of the side wall of the box body. The door plate is hinged to the box body for opening and closing the opening.

10. The welding dust suction device according to claim 1, characterized in that, There are two corrugated pipes, and there are two pre-tension members corresponding to the two corrugated pipes one by one.

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