Exhaust emission mechanism

Abstract

The utility model relates to the technical field of waste gas treatment, and discloses a waste gas emission mechanism which comprises a connecting seat, a first ventilation pipe is rotatably connected to the lower surface of the connecting seat, a rotating mechanism used for rotating is arranged at the end, away from the connecting seat, of the first ventilation pipe, and a first supporting seat and a second supporting seat are arranged on the outer side of the rotating mechanism. A second ventilation pipe is fixed in the adjacent first supporting seat and second supporting seat, an adjusting mechanism used for adjusting the length is arranged on the lower surface of the second supporting seat, and an air suction pipe is arranged on the lower surface of the adjusting mechanism. According to the waste gas discharging mechanism, under the action of the rotating mechanism, the air suction pipe can adjust the air suction direction at will through cooperation of the fixing base, the rotating rod, the rotating cylinder, the first bevel gear, the rotary knob, the second bevel gear and the fixing rod, meanwhile, the air suction pipe cannot automatically rotate after rotating at the corresponding position, and the air suction pipe can be kept at the set position to suck and discharge waste gas.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a waste gas emission mechanism. Background Art

[0002] Copper clad laminate, also known as substrate, is a plate-like material made by impregnating reinforcing material with resin, covering one or both sides with copper foil, and hot pressing. It is called copper clad laminate. It is the basic material for PCB and is often called substrate. When it is used in the production of multi-layer boards, it is also called core board. Copper clad laminate uses PP resin glue during the modulation process, which will produce industrial waste gas to pollute the environment. The waste gas not only pollutes the processing environment, but also damages the health of workers. Therefore, a waste gas emission mechanism is designed.

[0003] For example, a utility model patent with authorization announcement number CN216226052U discloses an emission mechanism for environmentally friendly treatment of waste gas, the emission mechanism includes a detection hood, at least two waste gas concentration sensors are symmetrically installed on the inner side wall of the detection hood, a single-chip microcomputer is installed on the front side of the upper surface of the detection hood, an exhaust fan is fixedly installed on the middle end of the upper surface of the detection hood, an exhaust hose is installed on the output port of the exhaust fan, a gas pipeline is fixedly installed on the exhaust port of the exhaust hose, an incinerator is installed on the exhaust port of the gas pipeline, and an air flow sensor is installed on the gas pipeline. The utility model is an emission mechanism for environmentally friendly treatment of waste gas, which can reduce the pollution of the environment by the waste gas generated in the production process of copper-clad laminated boards through an emission and combustion process in which the industrial waste gas generated in the production process of copper-clad laminated boards is emitted and consumed immediately, and effectively protects the health of production personnel; the emission mechanism can provide multiple emission reference data for the waste gas emission process and has a wide applicability.

[0004] The above patent still has certain defects. This patent can reduce the pollution of exhaust gas to the environment and effectively protect the health of production personnel. At the same time, the exhaust hose makes it convenient for workers to adjust the suction direction of the suction pipe. The exhaust hose body is relatively soft. When using it, the suction pipe needs to be adjusted to the set direction and then fixed by an auxiliary device, otherwise the suction pipe will fall vertically. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides an exhaust gas emission mechanism, which has the advantages of convenient adjustment of the direction of the intake pipe and will not fall off by itself, and solves the problem that the intake pipe needs to be adjusted to a set direction and then fixed by an auxiliary device when the exhaust hose body is relatively soft.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an exhaust gas discharge mechanism, comprising a connecting seat, a first ventilation pipe is rotatably connected to the lower surface of the connecting seat, a rotating mechanism for rotation is provided at one end of the first ventilation pipe away from the connecting seat, a first support seat and a second support seat are provided on the outer side of the rotating mechanism, a second ventilation pipe is fixed inside the adjacent first support seat and the second support seat, an adjusting mechanism for adjusting the length is provided on the lower surface of the second support seat, and a suction pipe is provided on the lower surface of the adjusting mechanism;

[0007] The rotating mechanism includes a fixed seat, a resistance increasing component, a rotating drum, a sealing gasket and a knob. The fixed seat is fixed to one end of the first ventilation pipe away from the connecting seat, the rotating drum is rotatably connected to the outside of the fixed seat, the knob is fixed to the front side of the rotating drum, and the sealing gasket is fixed to the back wall of the inner cavity of the rotating drum for sealing the rotating drum.

[0008] By adopting this technical solution, the suction direction of the suction pipe can be adjusted arbitrarily, which makes it convenient for the staff to adjust the exhaust gas absorption direction of the suction pipe at any time.

[0009] Furthermore, the resistance-increasing assembly includes a rotating rod, no less than two first bevel gears, a second bevel gear, no less than two fixed rods, two support plates, two arc plates and two rubber pads, the rotating rod is fixed to the front wall of the inner cavity of the rotating drum and is rotatably connected to the inside of the fixed seat, the second bevel gear is fixed to the outside of the rotating rod and is located inside the rotating drum, two adjacent first bevel gears are meshed on the outside of the second bevel gears, two adjacent fixed rods are fixed to the opposite side of two adjacent first bevel gears and the fixed rods are rotatably connected to the inside of the rotating drum, the two support plates are respectively fixed to the top wall and bottom wall of the inner cavity of the fixed seat, the two arc plates are respectively fixed to the opposite sides of the two support plates, and the two rubber pads are respectively fixed to the opposite sides of the two arc plates and fit tightly with the rotating rod.

[0010] By adopting this technical solution, the air suction pipe will not rotate automatically after being rotated to the corresponding position, so that the air suction pipe can remain in the set position to absorb and discharge the exhaust gas.

[0011] Furthermore, a mounting hole is provided on the back side of the rotating drum, a first bearing is fixed inside the mounting hole, and the fixing seat is fixed inside the first bearing.

[0012] By adopting this technical solution, the rotating drum will not drive the fixed seat to rotate together with it when it rotates.

[0013] Furthermore, a first mounting groove is formed on the back wall of the inner cavity of the fixing seat, a second bearing is fixed inside the first mounting groove, and the rotating rod is fixed inside the second bearing.

[0014] By adopting this technical solution, the rotating rod will not drive the fixing seat to rotate when it rotates.

[0015] Furthermore, the inner cavity wall of the rotating drum is provided with two second mounting grooves, a third bearing is fixed inside the second mounting groove, and the fixing rod is fixed inside the third bearing.

[0016] By adopting this technical solution, the fixing rod can rotate without driving the rotating drum to rotate together.

[0017] Furthermore, the adjustment mechanism includes an extension tube, two screws, an auxiliary plate and a fixed tube, the extension tube is fixed to the lower surface of the second support seat, the fixed tube is slidably connected to the outside of the extension tube, the two screws are threadedly connected to the inside of the extension tube and the fixed tube, and the auxiliary plates are fixed at the opposite ends of the two screws.

[0018] By adopting this technical solution, the air suction pipe can be closer to the exhaust gas discharge port and absorb the exhaust gas more thoroughly.

[0019] Furthermore, a sealing ring is fixed inside the fixed tube and the sealing ring fits with the extension tube, and the inner diameter of the fixed tube is matched with the diameter of the extension tube.

[0020] By adopting this technical solution, the absorbed exhaust gas is prevented from leaking through the gap between the fixed pipe and the extension pipe.

[0021] Furthermore, the left and right sides of the extension tube are provided with at least two threaded grooves for the screw to be threadedly connected, the left and right sides of the fixed tube are provided with threaded holes for the screw to pass through, and the screw is threadedly connected to the fixed tube through the threaded holes.

[0022] By adopting this technical solution, the extension tube can be extended to different lengths by cooperating with the screw rod, thereby extending the length of the air suction tube.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] 1. The exhaust gas discharge mechanism and the rotating mechanism enable the suction pipe to adjust the suction direction arbitrarily through the cooperation of the fixed seat, the rotating rod, the rotating drum, the first bevel gear, the knob second bevel gear and the fixed rod. At the same time, after rotating to the corresponding position, it will not rotate by itself, so that it can maintain the set position to absorb and discharge the exhaust gas, and cooperate with the sealing gasket inside the rotating drum to prevent the exhaust gas from leaking out and causing incomplete exhaust gas discharge.

[0025] 2. The exhaust gas discharge mechanism and the adjusting mechanism adjust the length of the suction pipe through the cooperation of the extension pipe, the screw, the auxiliary plate and the fixed pipe, so that the suction pipe can be closer to the exhaust gas discharge port and absorb the exhaust gas more thoroughly. At the same time, after the screw is completely screwed out, the extension pipe and the fixed pipe can be completely separated, so that the suction pipe can be removed for replacement or cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the utility model;

[0027] Figure 2 This is a schematic diagram of the rotating mechanism of the utility model;

[0028] Figure 3 It is a schematic diagram of the adjustment mechanism of the utility model.

[0029] In the figure: 1. connecting seat; 2. first ventilation duct; 3. rotating mechanism; 301. fixed seat; 302. rotating rod; 303. rotating drum; 304. first bevel gear; 305. sealing gasket; 306. knob; 307. second bevel gear; 308. fixing rod; 309. supporting plate; 310. arc plate; 311. rubber pad; 4. second ventilation duct; 5. first supporting seat; 6. second supporting seat; 7. adjusting mechanism; 701. extension pipe; 702. screw; 703. auxiliary plate; 704. fixing pipe; 8. suction pipe. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1 In this embodiment, an exhaust gas emission mechanism includes a connecting seat 1, a first ventilation pipe 2 is rotatably connected to the lower surface of the connecting seat 1, a rotating mechanism 3 for rotation is provided at one end of the first ventilation pipe 2 away from the connecting seat 1, a first supporting seat 5 and a second supporting seat 6 are provided on the outer side of the rotating mechanism 3, second ventilation pipes 4 are fixed inside the adjacent first supporting seats 5 and the second supporting seats 6, the number of second ventilation pipes 4 is two, an adjusting mechanism 7 for adjusting the length is provided on the lower surface of the second supporting seat 6, and a suction pipe 8 is provided on the lower surface of the adjusting mechanism 7.

[0032] See also Figure 2In order to adjust the direction of the suction pipe 8 while preventing it from falling by itself, the rotating mechanism 3 in this embodiment includes a fixed seat 301, a resistance-increasing component, a rotating cylinder 303, a sealing gasket 305 and a knob 306. The fixed seat 301 is fixed to the end of the first ventilation pipe 2 away from the connecting seat 1, the rotating cylinder 303 is rotatably connected to the outside of the fixed seat 301, the knob 306 is fixed to the front side of the rotating cylinder 303, and the sealing gasket 305 is fixed to the back wall of the inner cavity of the rotating cylinder 303 to seal the rotating cylinder 303.

[0033] The outer side of the fixed seat 301 is provided with a first ventilation hole, a second ventilation hole and a third ventilation hole connected to the first ventilation pipe 2 and the second ventilation pipe 4. After the exhaust gas enters the air suction pipe 8, it passes through the adjustment mechanism 7 and enters the interior of the rotating drum 303, and enters the interior of the fixed seat 301 through the rotating drum 303, and then enters the interior of the second ventilation pipe 4 through the first ventilation hole, and then enters the interior of the rotating drum 303 through the second ventilation hole connected to the other end of the second ventilation pipe 4 and enters the interior of the rotating drum 303, and enters the interior of the fixed seat 301 again through the rotating drum 303, and then enters the interior of the other second ventilation pipe 4 through the first ventilation hole, and finally the exhaust gas enters the interior of the first ventilation pipe 2 through the third ventilation hole on the last fixed seat 301, and finally enters the exhaust gas treatment device through the connecting seat.

[0034] A mounting hole is provided on the back of the rotating drum 303, and a first bearing is fixed inside the mounting hole. The fixing seat 301 is fixed inside the first bearing, so that the rotating drum 303 will not drive the fixing seat 301 to rotate when it rotates. The first supporting seat 5 is fixed on the outside of the fixing seat 301, and the second supporting seat 6 is fixed on the outside of the rotating drum 303.

[0035] In this embodiment, the resistance increasing assembly includes a rotating rod 302, at least two first bevel gears 304, a second bevel gear 307, at least two fixed rods 308, two support plates 309, two arc plates 310 and two rubber pads 311, the rotating rod 302 is fixed to the front wall of the inner cavity of the rotating drum 303 and the rotating rod 302 is rotatably connected to the inside of the fixed seat 301, and the rotating rod 302 and the connection are increased by rubber, the second bevel gear 307 is fixed to the outside of the rotating rod 302 and is located inside the rotating drum 303, the two adjacent first bevel gears 304 are meshed on the outside of the second bevel gear 307, the two adjacent fixed rods 308 are fixed to the opposite side of the two adjacent first bevel gears 304 and the fixed rod 308 is rotatably connected to the inside of the rotating drum 303, and the connection between the fixed rod 308 and the rotating drum 303 is increased by rubber, so that the suction pipe 8 can be maintained at the set position to absorb and discharge the exhaust gas, the fixed seat 3 01 The back wall of the inner cavity is provided with a first mounting groove, and a second bearing is fixed inside the first mounting groove. The rotating rod 302 is fixed inside the second bearing, so that the fixing rod 308 will not drive the fixing seat 301 to rotate when it rotates. The inner cavity wall of the rotating drum 303 is provided with two second mounting grooves, and a third bearing is fixed inside the second mounting groove. The fixing rod 308 is fixed inside the third bearing, so that the fixing rod 308 will not drive the rotating drum 303 to rotate when it rotates. The two support plates 309 are respectively fixed on the top wall and the bottom wall of the inner cavity of the fixing seat 301, and the two arc plates 310 are respectively fixed on the opposite sides of the two support plates 309. The two rubber pads 311 are respectively fixed on the opposite sides of the two arc plates 310 and are tightly fitted with the rotating rod 302. The rubber pads 311 that are in the same line or tightly fitted with the rotating rod 302 hinder the rotation of the rotating rod 302, making it difficult for the rotating rod 302 to rotate without manual drive.

[0036] It should be noted that the rotating mechanism 3, through the cooperation of the fixed seat 301, the rotating rod 302, the rotating cylinder 303, the first bevel gear 304, the knob 306, the second bevel gear 307 and the fixed rod 308, allows the suction pipe 8 to adjust the suction direction at will, and at the same time, it will not rotate by itself after rotating to the corresponding position, so that it can remain in the set position to absorb and discharge the exhaust gas.

[0037] See also Figure 3 In order to adjust the length of the suction pipe 8, the adjustment mechanism 7 in this embodiment includes an extension pipe 701, two screws 702, an auxiliary plate 703 and a fixed pipe 704. The extension pipe 701 is fixed to the lower surface of the second support seat 6, and the fixed pipe 704 is slidably connected to the outside of the extension pipe 701. The two screws 702 are threadedly connected to the inside of the extension pipe 701 and the fixed pipe 704, and the auxiliary plates 703 are fixed at the opposite ends of the two screws 702.

[0038] In this embodiment, a sealing ring is fixed inside the fixed tube 704 and the sealing ring fits with the extension tube 701. The inner diameter of the fixed tube 704 is matched with the diameter of the extension tube 701 to prevent the absorbed exhaust gas from leaking through the gap between the fixed tube 704 and the extension tube 701. The left and right sides of the extension tube 701 are provided with at least two threaded grooves for the screw 702 to be threadedly connected. When the length is adjusted, the flying absorption and discharge work will not be performed. Therefore, when the screw 702 is loosened, the exhaust gas will not leak out through the threaded groove. At least two threaded grooves are evenly sewn on the left and right sides of the extension tube 701. The left and right sides of the fixed tube 704 are provided with threaded holes for the screw 702 to pass through, and the screw 702 is threadedly connected to the fixed tube 704 through the threaded holes, so that the extension tube 701 can extend to different lengths in cooperation with the screw 702 to extend the length of the suction tube 8.

[0039] It should be noted that the adjustment mechanism 7 adjusts the length of the suction pipe 8 through the cooperation of the extension pipe 701, the screw 702, the auxiliary plate 703 and the fixed pipe 704, so that the suction pipe 8 can be closer to the exhaust gas discharge port and absorb the exhaust gas more thoroughly. At the same time, after the screw 702 is completely unscrewed, the extension pipe 701 and the fixed pipe 704 can be completely separated, so that the suction pipe 8 can be removed for replacement or cleaning.

[0040] The working principle of the above embodiment is:

[0041] (1) When it is necessary to adjust the air suction direction of the air suction pipe 8, the three knobs 306 are rotated respectively. The knobs 306 drive the rotating cylinder 303 to rotate outside the fixed seat 301. At the same time, the rotating cylinder 303 drives the rotating rod 302 inside the fixed seat 301. The second bevel gear 307 drives the two adjacent first bevel gears 304 to rotate while the rotating rod 302 rotates, and the two fixed rods 308 rotate inside the rotating cylinder 303. The two rotating cylinders 303 closest to the connecting seat 1 respectively drive one second ventilation pipe 4 to rotate, and the two rotating cylinders closest to the connecting seat 1 respectively drive one second ventilation pipe 4 to rotate. A rotating drum 303 of the suction pipe 8 drives the suction pipe 8 to rotate through the adjustment mechanism 7. The three rotating drums 303 cooperate with each other to adjust the suction pipe 8 to the set direction and height. The rotating mechanism 3 cooperates with the fixed seat 301, the rotating rod 302, the rotating drum 303, the first bevel gear 304, the knob 306, the second bevel gear 307 and the fixed rod 308 to enable the suction pipe 8 to adjust the suction direction at will. At the same time, after rotating to the corresponding position, it will not rotate by itself, so that it can remain in the set position to absorb and discharge the exhaust gas.

[0042] (2) When it is necessary to extend the length of the air suction pipe 8, the two auxiliary plates 703 are rotated. The two auxiliary plates 703 respectively drive a screw rod 702 to rotate and gradually disengage from the interior of the extension pipe 701. Then, the air suction pipe 8 is pulled downward so that the fixed pipe 704 moves downward together with the air suction pipe 8. After the air suction pipe 8 moves to a suitable distance, the screw rod 702 is aligned with the nearest threaded groove and tightened and locked through the auxiliary plate 703. The adjustment mechanism 7 adjusts the length of the air suction pipe 8 through the cooperation of the extension pipe 701, the screw rod 702, the auxiliary plate 703 and the fixed pipe 704, so that the air suction pipe 8 can be closer to the exhaust gas discharge port and absorb the exhaust gas more thoroughly. At the same time, after the screw rod 702 is completely screwed out, the extension pipe 701 and the fixed pipe 704 can be completely separated, so that the air suction pipe 8 can be removed for replacement or cleaning.

Claims

1. An exhaust gas discharge mechanism, comprising a connection seat (1), characterized in that: The lower surface of the connecting seat (1) is rotatably connected to a first ventilation pipe (2); an end of the first ventilation pipe (2) away from the connecting seat (1) is provided with a rotating mechanism (3) for rotation; a first supporting seat (5) and a second supporting seat (6) are provided on the outer side of the rotating mechanism (3); a second ventilation pipe (4) is fixed inside the adjacent first supporting seat (5) and the second supporting seat (6); an adjusting mechanism (7) for adjusting the length is provided on the lower surface of the second supporting seat (6); and a suction pipe (8) is provided on the lower surface of the adjusting mechanism (7); The rotating mechanism (3) comprises a fixed seat (301), a resistance increasing assembly, a rotating cylinder (303), a sealing gasket (305) and a knob (306); the fixed seat (301) is fixed to an end of the first ventilation pipe (2) away from the connecting seat (1); the rotating cylinder (303) is rotatably connected to the outside of the fixed seat (301); the knob (306) is fixed to the front side of the rotating cylinder (303); and the sealing gasket (305) is fixed to the back wall of the inner cavity of the rotating cylinder (303) for sealing the rotating cylinder (303).

2. An exhaust gas discharge mechanism according to claim 1, characterized in that: The resistance increasing assembly comprises a rotating rod (302), at least two first bevel gears (304), a second bevel gear (307), at least two fixed rods (308), two support plates (309), two arc-shaped plates (310) and two rubber pads (311); the rotating rod (302) is fixed to the front wall of the inner cavity of the rotating drum (303) and the rotating rod (302) is rotatably connected to the inside of the fixed seat (301); the second bevel gear (307) is fixed to the outside of the rotating rod (302) and is located inside the rotating drum (303); two adjacent first bevel gears (307) are connected to the rotating drum (303); (304) is meshed on the outer side of the second bevel gear (307), the two adjacent fixing rods (308) are fixed on the opposite side of the two adjacent first bevel gears (304) and the fixing rods (308) are rotatably connected to the inside of the rotating drum (303), the two supporting plates (309) are respectively fixed on the top wall and the bottom wall of the inner cavity of the fixing seat (301), the two arc plates (310) are respectively fixed on the opposite side of the two supporting plates (309), and the two rubber pads (311) are respectively fixed on the opposite side of the two arc plates (310) and are tightly fitted with the rotating rod (302).

3. An exhaust gas emission mechanism according to claim 1, characterized in that: A mounting hole is provided on the back of the rotating drum (303), a first bearing is fixed inside the mounting hole, and the fixing seat (301) is fixed inside the first bearing.

4. An exhaust gas discharge mechanism according to claim 2, characterized in that: A first mounting groove is provided on the back wall of the inner cavity of the fixing seat (301), a second bearing is fixed inside the first mounting groove, and the rotating rod (302) is fixed inside the second bearing.

5. An exhaust gas discharge mechanism according to claim 2, characterized in that: The inner cavity wall of the rotating drum (303) is provided with two second installation grooves, a third bearing is fixed inside the second installation groove, and the fixing rod (308) is fixed inside the third bearing.

6. An exhaust gas discharge mechanism according to claim 1, characterized in that: The adjustment mechanism (7) comprises an extension tube (701), two screw rods (702), an auxiliary plate (703) and a fixed tube (704); the extension tube (701) is fixed to the extension tube (701) on the lower surface of the second support seat (6); the fixed tube (704) is slidably connected to the outside of the extension tube (701); the two screw rods (702) are both threadedly connected to the inside of the extension tube (701) and the fixed tube (704); and the auxiliary plate (703) is fixed to the opposite ends of the two screw rods (702).

7. An exhaust gas discharge mechanism according to claim 6, characterized in that: A sealing ring is fixed inside the fixed tube (704) and the sealing ring fits the extension tube (701). The inner diameter of the fixed tube (704) matches the diameter of the extension tube (701).

8. An exhaust gas discharge mechanism according to claim 6, characterized in that: The extension tube (701) is provided with at least two threaded grooves for threaded connection of the screw rod (702) on both left and right sides, and the fixed tube (704) is provided with threaded holes for the screw rod (702) to pass through on both left and right sides, and the screw rod (702) is threadedly connected to the fixed tube (704) through the threaded holes.

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