Welding workshop flue gas purification device

Abstract

The utility model relates to the field of environmental protection equipment, in particular to a welding workshop smoke purification device which comprises a purifier body, an air inlet of the purifier body is connected with a smoke collecting hood through an exhaust pipeline, the smoke collecting hood comprises a vertical pipe and an umbrella-shaped support arranged on the vertical pipe, an annular flexible hood is arranged below the umbrella-shaped support, and the annular flexible hood is connected with the purifier body. A driving device for driving the umbrella-shaped bracket to fold and unfold is arranged above the umbrella-shaped bracket; the smoke collecting hood is small in occupied space after being folded, and is suitable for welding operation places which are compact in space and need to hoist workpieces.

Description

Technical Field

[0001] The utility model relates to the field of environmental protection equipment, in particular to a welding workshop flue gas purification device. Background Art

[0002] A welding fume purifier is an industrial environmental protection equipment, usually used in welding places such as soldering, manual arc welding, etc., to collect and purify the generated welding fumes, so as to protect the environment and the health of workers. The smoke collecting hood of the existing welding fume purifier is generally processed by metal plates. The smoke collecting hood is connected to the column in the workshop through a folding arm. After the folding arm is folded and retracted, the smoke collecting hood cannot be reduced, and to a certain extent, it still occupies a part of the space, which will affect the lifting of workpieces in the workshop. Content of the Utility Model

[0003] Based on the above problems, the purpose of the utility model is to provide a welding workshop flue gas purification device. The utility model adopts the following technical solutions:

[0004] The utility model provides a welding workshop flue gas purification device, which includes a purifier main body. The air inlet of the purifier main body is connected to a smoke collecting hood through an exhaust duct. The smoke collecting hood includes a riser pipe and an umbrella-shaped bracket arranged on the riser pipe. A circular flexible cover is arranged below the umbrella-shaped bracket, and a driving device for driving its retraction and extension is arranged above the umbrella-shaped bracket;

[0005] The umbrella-shaped bracket includes a movable seat and a fixed seat which are sequentially arranged on the outer wall of the riser pipe from top to bottom. The top of the movable seat is connected to the driving device. A plurality of hanging rods are arranged in a ring around the movable seat. The upper end of the hanging rod is rotatably connected to the movable seat, the lower end of the hanging rod is rotatably connected to an outer support arm, and the upper end of the outer support arm is rotatably connected to the fixed seat;

[0006] A sleeve hole is arranged in the middle of the circular flexible cover. After the sleeve hole is sleeved on the riser pipe, it is fixed by a pipe clamp; a plurality of straps connected to the outer support arm are arranged on the top of the circular flexible cover.

[0007] Preferably, the riser pipe is hung on a folding lifting arm. The folding lifting arm includes a first lifting arm. One end of the first lifting arm is connected to a column through a first rotating joint, and the other end of the first lifting arm is connected to a support seat through a second rotating joint. The rotating axes of the first rotating joint and the second rotating joint are perpendicular to the horizontal plane. A second lifting arm is hinged on the support seat. A second telescopic driving member is arranged below the second lifting arm. The telescopic end of the second telescopic driving member is rotatably connected to the second lifting arm, and the body of the second telescopic driving member is rotatably connected to the support seat.

[0008] Preferably, a flexible pipe is provided on the folding jib, one end of the flexible pipe is connected to the exhaust duct, and the other end is connected to the riser pipe.

[0009] Preferably, the driving device includes first telescopic driving members arranged on both sides of the riser pipe. The first telescopic driving members are connected to the riser pipe through connecting seats, and the telescopic ends of the first telescopic driving members are rotatably connected to the movable seat.

[0010] Preferably, a plurality of drooping curtains are provided on the outer edge of the annular flexible cover.

[0011] Preferably, a wind valve is provided at the lower end of the riser pipe.

[0012] Compared with the prior art, the beneficial technical effects of the present utility model are as follows:

[0013] After the smoke collecting hood in the present utility model is folded and retracted, it occupies a small space and is suitable for welding operation sites with compact spaces where workpieces need to be lifted. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present utility model will be further described below in conjunction with the drawings.

[0015] Figure 1 is the front view structural schematic diagram of the flue gas purification device in the present utility model;

[0016] Figure 2 is the front view structural schematic diagram of the smoke collecting hood in the present utility model;

[0017] Figure 3 is the top view structural schematic diagram of the annular flexible cover in the present utility model;

[0018] Figure 4 is the structural schematic diagram of the folding jib in the present utility model.

[0019] Description of the reference numerals: 1, purifier main body; 2, exhaust duct; 3, smoke collecting hood; 301, riser pipe; 301-1, wind valve; 302, umbrella-shaped bracket; 302-1, movable seat; 302-2, fixed seat; 302-3, suspension rod; 302-4, outer support arm; 303, annular flexible cover; 303-1, sleeve hole; 303-2, pipe clamp; 303-3, binding band; 303-4, drooping curtain; 304, driving device; 304-1, first telescopic driving member; 304-2, connecting seat; 4, folding jib; 401, first jib; 402, first rotating joint; 403, column; 404, second rotating joint; 405, support seat; 406, second jib; 407, second telescopic driving member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0021] As Figure 1 shown, a flue gas purification device for a welding workshop is disclosed in this embodiment, which includes a purifier main body 1. The air inlet of the purifier main body 1 is connected to a smoke collecting hood 3 through an exhaust duct 2. The smoke collecting hood 3 includes a riser 301 and an umbrella-shaped bracket 302 arranged on the riser 301. A circular flexible cover 303 is arranged below the umbrella-shaped bracket 302, and a driving device 304 for driving its retraction and extension is arranged above the umbrella-shaped bracket 302.

[0022] As Figure 2 and 3 shown, the umbrella-shaped bracket 302 includes a movable seat 302-1 and a fixed seat 302-2 that are sequentially arranged on the outer wall of the riser 301 from top to bottom. The movable seat 302-1 is movably connected to the riser 301, and the fixed seat 302-2 is fixed on the riser 301. The top of the movable seat 302-1 is connected to the driving device 304. The driving device 304 drives the movable seat 302-1 to move up and down along the riser 301. A plurality of suspension rods 302-3 are arranged in a ring around the movable seat 302-1. The upper ends of the suspension rods 302-3 are rotatably connected to the movable seat 302-1, and the lower ends of the suspension rods 302-3 are rotatably connected to the outer support arm 302-4. The upper end of the outer support arm 302-4 is rotatably connected to the fixed seat 302-2.

[0023] A sleeve hole 303-1 is arranged in the middle of the circular flexible cover 303. After the sleeve hole 303-1 is sleeved on the riser 301, it is fixed by a pipe clamp 303-2. A plurality of straps 303-3 connected to the outer support arm 302-4 are arranged at the top of the circular flexible cover 303. The circular flexible cover 303 can be made of canvas material.

[0024] In this embodiment, the driving device 304 includes first telescopic driving members 304-1 arranged on both sides of the riser 301. The body of the first telescopic driving member 304-1 is connected to the riser 301 through a connecting seat 304-2, and the telescopic end of the first telescopic driving member 304-1 is rotatably connected to the movable seat 302-1.

[0025] In this embodiment, a plurality of drooping curtain walls 303-4 are arranged on the outer edge of the circular flexible cover 303. The drooping curtain walls 303-4 reduce the overflow of welding fumes and improve the collection ability of the circular flexible cover 303 for welding fumes.

[0026] In this embodiment, a wind valve 301-1 is arranged at the lower end of the riser 301. The wind valve 301-1 is in a manual operation form, and workers control the suction force of the riser 301 by operating the wind valve 301-1.

[0027] In this embodiment, as Figure 4 shown, the riser pipe 301 is suspended on the folding jib 4 by a rope. The folding jib 4 includes a first jib 401. One end of the first jib 401 is connected to the column 403 through a first rotating joint 402, and the other end of the first jib 401 is connected to the support base 405 through a second rotating joint 404. The rotation axes of the first rotating joint 402 and the second rotating joint 404 are perpendicular to the horizontal plane. A second jib 406 is hinged on the support base 405. A second telescopic driving member 407 is arranged below the second jib 406. The telescopic end of the second telescopic driving member 407 is rotatably connected to the second jib 406, and the body of the second telescopic driving member 407 is rotatably connected to the support base 405.

[0028] A flexible pipe 5 is arranged on the folding jib 4. The flexible pipe 5 can be fixed on the folding jib 4 through a pipe seat. One end of the flexible pipe 5 is connected to the exhaust air duct 2, and the other end is connected to the riser pipe 301. The exhaust air duct 2 is laid along the workshop and can be fixed on the column 403.

[0029] It should be noted that the working principle of the purifier main body 1 is that under the action of the fan attraction, the welding fume waste gas is inhaled into the filter cavity through the smoke collecting hood 3. The particulate soot is trapped on the outer surface by the filter element. After the clean gas is filtered and purified by the filter element, it flows into the clean room from the center of the filter element. The clean air is further purified by adsorption of the activated carbon filter and then discharged up to standard through the air outlet. The structure of the purifier main body 1 belongs to the prior art, and its detailed structure will not be described herein again.

[0030] The first telescopic driving member 304-1 and the second telescopic driving member 407 can use air cylinders or electric cylinders. A controller for controlling the actions of the two can be installed on the column 403.

[0031] The embodiments described above are only descriptions of the preferred modes of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A flue gas purification device for a welding workshop, comprising a purifier main body (1), wherein an air inlet of the purifier main body (1) is connected to a smoke collecting hood (3) through an exhaust duct (2), and is characterized in that: The smoke collecting hood (3) includes a riser pipe (301) and an umbrella-shaped bracket (302) arranged on the riser pipe (301). An annular flexible cover (303) is arranged below the umbrella-shaped bracket (302), and a driving device (304) for driving its retraction and extension is arranged above the umbrella-shaped bracket (302). The umbrella-shaped bracket (302) includes a movable seat (302-1) and a fixed seat (302-2) which are sequentially arranged on the outer wall of the riser pipe (301) from top to bottom. The top of the movable seat (302-1) is connected to the driving device (304). A plurality of suspension rods (302-3) are arranged in a ring around the movable seat (302-1). The upper ends of the suspension rods (302-3) are rotatably connected to the movable seat (302-1), and the lower ends of the suspension rods (302-3) are rotatably connected to the outer support arm (302-4). The upper end of the outer support arm (302-4) is rotatably connected to the fixed seat (302-2). A sleeve hole (303-1) is arranged in the middle of the annular flexible cover (303). After the sleeve hole (303-1) is sleeved on the riser pipe (301), it is fixed by a pipe clamp (303-2). A plurality of straps (303-3) connected to the outer support arm (302-4) are arranged at the top of the annular flexible cover (303).

2. The flue gas purification device for a welding workshop according to claim 1, wherein: The riser pipe (301) is hung on a folding jib (4). The folding jib (4) includes a first jib (401). One end of the first jib (401) is connected to a column (403) through a first rotating joint (402), and the other end of the first jib (401) is connected to a support seat (405) through a second rotating joint (404). The rotating axes of the first rotating joint (402) and the second rotating joint (404) are perpendicular to the horizontal plane. A second jib (406) is hinged on the support seat (405). A second telescopic driving member (407) is arranged below the second jib (406). The telescopic end of the second telescopic driving member (407) is rotatably connected to the second jib (406), and the body of the second telescopic driving member (407) is rotatably connected to the support seat (405).

3. The flue gas purification device for a welding workshop according to claim 2, characterized in that: A flexible pipe (5) is arranged on the folding jib (4). One end of the flexible pipe (5) is connected to the exhaust duct (2), and the other end is connected to the riser pipe (301).

4. The flue gas purification device for a welding workshop according to claim 1, wherein: The driving device (304) includes first telescopic driving members (304-1) arranged on both sides of the riser pipe (301). The first telescopic driving members (304-1) are connected to the riser pipe (301) through connecting seats (304-2). The telescopic ends of the first telescopic driving members (304-1) are rotatably connected to the movable seat (302-1).

5. The flue gas purification device for a welding workshop according to claim 1, characterized in that: A plurality of hanging curtain flaps (303-4) are arranged on the outer edge of the annular flexible cover (303).

6. The flue gas purification device for a welding workshop according to claim 1, characterized in that: An air valve (301-1) is arranged at the lower end of the riser pipe (301).

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