Waste gas collecting device for waste gas detection

Abstract

The utility model provides a waste gas collecting device for waste gas detection, and belongs to the technical field of waste gas detection. The waste gas collecting device for waste gas detection comprises a cart, a collecting box is fixedly mounted at the top of the cart, a collecting mechanism is arranged at the top of the cart and comprises a rotating rod, a gear and a limiting block, the rotating rod is rotatably mounted at the top of the collecting box, and a collecting pipe is integrally formed at the top of the rotating rod. According to the waste gas collecting device, the collecting mechanism is arranged, a toothed plate reciprocates, so that a gear drives a rotating rod to alternately rotate clockwise and anticlockwise, and a collecting barrel is driven by a collecting pipe to swing in a reciprocating manner, so that when a worker collects waste gas through the gas collecting barrel, the waste gas suction angle is not fixed any more; the finally collected waste gas is more representative, and compared with the prior art, data are more accurate when the collected waste gas is detected.

Description

TECHNICAL FIELD

[0001] The utility model relates to exhaust gas detection technical field, specifically, exhaust gas collection device for exhaust gas detection. BACKGROUND

[0002] Exhaust gas detection is an important link of environmental monitoring, is used for evaluating and quantifying the composition and concentration of exhaust gas discharged by industrial process, transportation, energy production and other human activities, and exhaust gas collection provides the basis for exhaust gas detection, and the exhaust gas collected through the exhaust gas collection system can effectively evaluate the exhaust gas.

[0003] When the existing equipment is used, the collection cylinder for collecting exhaust gas is usually fixed in angle, which leads to the exhaust gas collected is also fixed angle exhaust gas, the exhaust gas collected is not sufficient and comprehensive, and the whole exhaust gas cannot be represented. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortage, the utility model provides an exhaust gas collection device for exhaust gas detection which overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model is realized as follows:

[0006] The utility model provides an exhaust gas collection device for exhaust gas detection, which comprises a cart, a collection box is fixedly installed on the top of the cart, a collection mechanism is arranged on the top of the cart, and the collection mechanism comprises,

[0007] A rotating rod is rotatably installed on the top of the collection box, a collection pipe is integrally formed on the top of the rotating rod, collection cylinders are fixedly installed on the left and right sides of the collection pipe, and the inner cavities of the collection cylinders are communicated with the inner cavity of the collection pipe.

[0008] A gear is fixedly sleeved on the surface of the rotating rod, a toothed plate is slidably installed in the inner cavity of the top wall of the collection box, and the toothed plate is engaged with the gear.

[0009] A limiting block is fixedly installed in the inner cavity of the top wall of the collection box, a limiting rod is slidably sleeved in the limiting block, a connecting rod is fixedly installed on the rear side of the limiting rod, and the rear side of the connecting rod is fixedly connected with the front side of the toothed plate.

[0010] In a preferred scheme, a rotating disc is rotatably installed in the inner cavity of the top wall of the collection box, a rotating shaft is fixedly installed on the top of the rotating disc, a straight slot is formed in the connecting rod, and the rotating shaft is slidably sleeved in the straight slot.

[0011] In a preferred scheme, the inner cavity of the top wall of the collecting box is rotationally provided with a follower rod, the bottom of the rotating disc is fixedly provided with a transmission rod, the surfaces of the follower rod and the transmission rod are both fixedly provided with a first rotating wheel, and the first transmission belt is provided between the follower rod and the transmission rod through the first rotating wheel.

[0012] In a preferred scheme, the top of the collecting box is fixedly provided with a motor, and the output end of the motor is fixedly connected with the top of the follower rod.

[0013] In a preferred scheme, the top of the collecting box is provided with an air suction tank, the input end of the air suction tank is provided with a first air pipe, the inner cavity of the first air pipe is communicated with the inner cavity of the collecting pipe, the output end of the air suction tank is provided with a second air pipe, the inner cavity of the second air pipe is communicated with the inner cavity of the collecting box, and the right side of the collecting box is provided with an air outlet pipe which is communicated with the inner cavity of the collecting box.

[0014] In a preferred scheme, the inner cavity of the collecting box is provided with an air compression mechanism, the air compression mechanism comprises a lead screw which is rotationally arranged in the inner cavity of the collecting box, and the inner cavity of the collecting box is fixedly provided with a sliding rod.

[0015] In a preferred scheme, the lead screw and the sliding rod are provided with a compression plate, the bottom of the compression plate is fixedly provided with a first sealing rod and a second sealing rod, the first sealing rod is slidingly arranged on the surface of the sliding rod, and the second sealing rod is threadedly arranged on the surface of the lead screw.

[0016] In a preferred scheme, the surfaces of the follower rod and the lead screw are both fixedly provided with a second rotating wheel, and the second transmission belt is provided between the follower rod and the lead screw through the second rotating wheel.

[0017] The waste gas collecting device for waste gas detection has the following beneficial effects:

[0018] 1. The collecting mechanism is arranged, the gear drives the rotating rod to alternately rotate clockwise and counterclockwise through the reciprocating movement of the toothed plate, the collecting pipe drives the collecting cylinder to reciprocate, so that the angle of inhaling waste gas is no longer fixed when the staff collects waste gas through the gas collecting cylinder, the collected waste gas is more representative, and the data is more accurate when the collected waste gas is detected compared with the prior art.

[0019] 2. By setting the air compression mechanism, the compression plate moves downward, because the compression plate is in close contact with the inner cavity of the sealing bag edge and the collecting box, so that the compression plate compresses the air below, and opens the valve on the air outlet pipe to make the air exhaust through the air outlet pipe, because the collected exhaust gas is always above the compression plate, so as to avoid the problem that the exhaust gas is directly discharged into the inner cavity of the collecting box and mixed with air, which affects the detection result of the subsequent exhaust gas. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Figure 1 is a schematic diagram of the overall structure provided by the embodiments of the present application;

[0022] Figure 2 is a partial cross-sectional view of the collecting box provided by the embodiments of the present application;

[0023] Figure 3 is a partial cross-sectional view of the collecting box provided by the embodiments of the present application;

[0024] Figure 4 is a schematic diagram of the gear and tooth plate structure provided by the embodiments of the present application.

[0025] In the figure: 1, trolley; 2, collecting box; 301, rotating rod; 302, collecting pipe; 303, collecting cylinder; 304, gear; 305, tooth plate; 306, limiting block; 307, limiting rod; 308, connecting rod; 309, rotating disc; 310, rotating shaft; 311, straight slot; 312, follow-up rod; 313, transmission rod; 314, first transmission belt; 315, motor; 316, air suction tank; 317, first air pipe; 318, second air pipe; 319, air outlet pipe; 401, lead screw; 402, sliding rod; 403, compression plate; 404, first sealing rod; 405, second sealing rod; 406, second transmission belt. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment. Obviously, the described embodiment is part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0027] With reference to Figures 1-4 The utility model provides a kind of technical scheme: a kind of waste gas collection device for waste gas detection, including cart 1, the top of cart 1 is fixedly installed with collection box 2, the top of cart 1 is provided with collection mechanism, collection mechanism includes rotating lever 301, gear 304 and limit block 306, rotating lever 301 is rotatably installed at the top of collection box 2, the top of rotating lever 301 is integrally formed with collection pipe 302, collection pipe 302 is fixedly installed with collection cylinder 303 on the left and right sides, the inner cavity of collection cylinder 303 and the inner cavity of collection pipe 302 are communicated, gear 304 is fixedly sleeved on the surface of rotating lever 301, the inner cavity of collection box 2 top wall is slidably installed with toothed plate 305, toothed plate 305 and gear 304 are engagedly connected, limit block 306 is fixedly installed in the inner cavity of collection box 2 top wall, limit rod 307 is slidably sleeved in the inside of limit block 306, connecting rod 308 is fixedly installed at the back of limit rod 307, the back of connecting rod 308 and the front side of toothed plate 305 are fixedly connected, by setting collection mechanism, when connecting rod 308 slides left and right, toothed plate 305 is driven to slide left and right, due to the engagement connection of toothed plate 305 and gear 304, gear 304 is rotated, due to the reciprocating movement of toothed plate 305, gear 304 drives rotating lever 301 to rotate clockwise and counterclockwise alternately, collection cylinder 303 is driven to reciprocate by collection pipe 302, so that the angle of inhaling waste gas when staff collects waste gas by collection cylinder is no longer fixed, and the collected waste gas is more representative, compared with prior art, when the collected waste gas is detected, data is more accurate;

[0028] With reference to Figures 1-4 The inner cavity of collection box 2 top wall is rotatably installed with turntable 309, the top of turntable 309 is fixedly installed with rotating shaft 310, straight slot 311 is formed on connecting rod 308, rotating shaft 310 is slidably sleeved in the inside of straight slot 311, by setting turntable 309, when turntable 309 rotates, rotating shaft 310 is driven to rotate, so that rotating shaft 310 causes extrusion to the inner wall of straight slot 311, and is limited by limit block 306 and limit rod 307, so as to drive connecting rod 308 to reciprocate in left and right directions;

[0029] With reference toFigures 1-4 The inner cavity of the top wall of the collecting box 2 is rotatably provided with a follower rod 312, the bottom of the rotating disc 309 is fixedly provided with a transmission rod 313, the surfaces of the follower rod 312 and the transmission rod 313 are fixedly provided with first rotating wheels, the first transmission belt 314 is provided between the follower rod 312 and the transmission rod 313 through the first rotating wheels, the top of the collecting box 2 is fixedly provided with a motor 315, and the output end of the motor 315 is fixedly connected with the top of the follower rod 312. By providing the first transmission belt 314, the motor 315 is started by the staff, the follower rod 312 is driven to rotate, the transmission rod 313 is driven to rotate through cooperation of the first transmission belt 314, and driving force is provided for rotation of the rotating disc 309;

[0030] With reference to Figures 1-4 The top of the collecting box 2 is provided with an air suction tank 316, the input end of the air suction tank 316 is provided with a first air pipe 317, the inner cavity of the first air pipe 317 is in communication with the inner cavity of the collecting pipe 302, the output end of the air suction tank 316 is provided with a second air pipe 318, the inner cavity of the second air pipe 318 is in communication with the inner cavity of the collecting box 2, and the right side of the collecting box 2 is provided with an air outlet pipe 319. The inner cavity of the collecting box 2 is in communication with the air outlet pipe 319. By providing the air suction tank 316, the staff starts the air suction tank 316, the input end of the air suction tank 316 generates suction, the collecting cylinder 303 generates suction to start to absorb waste gas through cooperation of the first air pipe 317 and the collecting pipe 302, the collected waste gas enters the inner cavity of the collecting box 2 through the second air pipe 318, and a one-way valve is arranged on the second air pipe 318 to prevent waste gas from flowing back;

[0031] With reference to Figures 1-4 The inner cavity of the collecting box 2 is provided with an air compression mechanism. The air compression mechanism comprises a lead screw 401 rotatably arranged in the inner cavity of the collecting box 2, a sliding rod 402 fixedly arranged in the inner cavity of the collecting box 2, a compression plate 403 sleeved between the lead screw 401 and the sliding rod 402, a first sealing rod 404 fixedly arranged at the bottom of the compression plate 403, and a second sealing rod 405 threadedly sleeved on the surface of the lead screw 401. The first sealing rod 404 is slidably sleeved on the surface of the sliding rod 402, and the second sealing rod 405 is threadedly sleeved on the surface of the lead screw 401. By providing the air compression mechanism, when the lead screw 401 rotates, the compression plate 403 moves downward through the threaded connection between the lead screw 401 and the second sealing rod 405. Since the compression plate 403 is in close contact with the inner cavity of the collecting box 2 through the sealing edge, the compression plate 403 compresses the air below, and the valve on the air outlet pipe 319 is opened to allow the air to be discharged through the air outlet pipe 319. Since the collected waste gas is always located above the compression plate 403, the problem that the waste gas is directly discharged into the inner cavity of the collecting box 2 to mix with the air and affect the subsequent waste gas detection result is avoided;

[0032] With reference to Figures 1-4The surface of the follow-up rod 312 and the screw rod 401 is fixedly sleeved with a second rotating wheel, and the follow-up rod 312 and the screw rod 401 are sleeved with a second transmission belt 406 through the second rotating wheel. When the follow-up rod 312 rotates, the screw rod 401 is driven to rotate through the cooperation of the second transmission belt 406, so that the collection of waste gas and the movement of the compression plate 403 are synchronously performed.

[0033] Specifically, the working process or working principle of the waste gas collection device for waste gas detection is as follows: in use, the worker starts the motor 315 to drive the follow-up rod 312 to rotate, drives the transmission rod 313 to rotate through the cooperation of the first transmission belt 314, and drives the rotating disc 309 to rotate, drives the rotating shaft 310 to rotate when the rotating disc 309 rotates, causes the rotating shaft 310 to extrude the inner wall of the straight slot 311, and drives the connecting rod 308 to reciprocate in the left-right direction through the limiting cooperation of the limiting block 306 and the limiting rod 307. When the connecting rod 308 slides left and right, the tooth plate 305 slides left and right, and the gear 304 rotates due to the meshing connection of the tooth plate 305 and the gear 304. The gear 304 drives the rotating rod 301 to rotate clockwise and counterclockwise alternately due to the reciprocating movement of the tooth plate 305, drives the collection cylinder 303 to reciprocate through the collection pipe 302, and the worker starts the suction tank 316 to generate suction at the input end of the suction tank 316. Through the cooperation of the first air pipe 317 and the collection pipe 302, the collection cylinder 303 generates suction to start absorbing waste gas. The collected waste gas enters the inner cavity of the collection box 2 through the second air pipe 318. When the follow-up rod 312 rotates, the screw rod 401 is driven to rotate through the cooperation of the second transmission belt 406. When the screw rod 401 rotates, the compression plate 403 moves downward through the threaded connection of the screw rod 401 and the second sealing rod 405. Since the compression plate 403 is in close contact with the inner cavity of the collection box 2 through the sealing edge, the compression plate 403 compresses the air below, opens the valve on the air outlet pipe 319 to make the air exhaust through the air outlet pipe 319, and since the collected waste gas is always located above the compression plate 403, the waste gas is prevented from being directly discharged into the inner cavity of the collection box 2 and mixed with air.

Claims

1. A waste gas collecting device for waste gas detection, comprising a trolley (1), a collecting box (2) is fixedly installed on the top of the trolley (1), characterized in that: The top of the trolley (1) is provided with a collection mechanism, the collection mechanism comprises, The rotating rod (301) is rotatably installed on the top of the collection box (2), the top of the rotating rod (301) is integrally provided with a collection pipe (302), the left and right sides of the collection pipe (302) are fixedly installed with collection barrels (303), and the inner cavities of the collection barrels (303) are in communication with the inner cavity of the collection pipe (302). The gear (304) is fixedly sleeved on the surface of the rotating rod (301), the inner cavity of the top wall of the collection box (2) is slidably installed with a toothed plate (305), and the toothed plate (305) is in meshing connection with the gear (304). The limiting block (306) is fixedly installed in the inner cavity of the top wall of the collection box (2), the limiting rod (307) is slidably sleeved in the inside of the limiting block (306), the connecting rod (308) is fixedly installed on the rear side of the limiting rod (307), and the rear side of the connecting rod (308) is fixedly connected with the front side of the toothed plate (305).

2. The exhaust gas collecting device for exhaust gas detection according to claim 1, characterized by The inner cavity of the top wall of the collection box (2) is rotatably installed with a rotating disc (309), the top of the rotating disc (309) is fixedly installed with a rotating shaft (310), the connecting rod (308) is provided with an upper and lower through straight slot (311), and the rotating shaft (310) is slidably sleeved in the inner cavity of the straight slot (311).

3. The exhaust gas collecting device for exhaust gas detection according to claim 2, characterized by The inner cavity of the top wall of the collection box (2) is rotatably installed with a follower rod (312), the bottom of the rotating disc (309) is fixedly installed with a transmission rod (313), the surfaces of the follower rod (312) and the transmission rod (313) are fixedly sleeved with a first rotating wheel, and the follower rod (312) and the transmission rod (313) are sleeved with a first transmission belt (314) through the first rotating wheel.

4. The exhaust gas collecting device for exhaust gas detection according to claim 3, characterized by The top of the collection box (2) is fixedly installed with a motor (315), and the output end of the motor (315) is fixedly connected with the top of the follower rod (312).

5. The exhaust gas collecting device for exhaust gas detection according to claim 4, characterized by The top of the collection box (2) is installed with an air suction tank (316), the input end of the air suction tank (316) is installed with a first air pipe (317), the inner cavity of the first air pipe (317) is in communication with the inner cavity of the collection pipe (302), the output end of the air suction tank (316) is installed with a second air pipe (318), the inner cavity of the second air pipe (318) is in communication with the inner cavity of the collection box (2), and the right side of the collection box (2) is installed with an air outlet pipe (319).

6. The exhaust gas collecting device for exhaust gas detection according to claim 5, characterized by The inner cavity of the collection box (2) is rotatably installed with a rotating rod (301), the top of the rotating rod (301) is integrally provided with a collection pipe (302), the left and right sides of the collection pipe (302) are fixedly installed with collection barrels (303), and the inner cavities of the collection barrels (303) are in communication with the inner cavity of the collection pipe (302).

7. The exhaust gas collecting device for exhaust gas detection according to claim 6, characterized by The compression plate (403) is sleeved between the lead screw (401) and the sliding rod (402), the bottom of the compression plate (403) is fixedly provided with a first sealing rod (404) and a second sealing rod (405), the first sealing rod (404) is sleeved on the surface of the sliding rod (402), and the second sealing rod (405) is threadedly sleeved on the surface of the lead screw (401).

8. The exhaust gas collecting device for exhaust gas detection according to claim 7, characterized by The surface of the follow-up rod (312) and the surface of the lead screw (401) are fixedly sleeved with second rotating wheels, and the follow-up rod (312) and the lead screw (401) are sleeved with a second transmission belt (406) through the second rotating wheels.

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