Waste gas collection sampling device and use method

Abstract

The present invention relates to the field of waste gas collection, and specifically to a waste gas collection sampling device and a method of use, comprising a shell, an air inlet pipe is connected to the inner wall of the shell, a pump is connected to the end of the air inlet pipe, and a balancing mechanism is provided on one side of the pump, a bottom cover is plugged into the bottom wall of the shell, a plurality of sampling cans are plugged into the top annular array of the bottom cover, and a control mechanism is provided on the side of the sampling can. This waste gas collection sampling device, through the setting of the balancing mechanism, can change the pumping speed of the pump according to the rushing speed of the waste gas, so that the pumping speed and the rushing speed of the waste gas are balanced, avoiding excessive differences that cause the content of harmful substances to become smaller or larger, affecting the detection results, and through the setting of the control mechanism, after the gas extraction is completed, it can trigger the power storage gear to drive the gear plate to rotate, and select the next group of sampling cans to facilitate subsequent continuous sampling.

Description

Technical Field

[0001] The invention relates to the field of waste gas collection, and in particular to a waste gas collection sampling device and a use method thereof. Background Art

[0002] In daily life, various life activities, car travel, and industrial production will generate a large amount of waste gas. Especially in industrial production, a large amount of waste gas containing organic chemicals will be generated. Directly discharged into the atmosphere will seriously affect the environment. Therefore, in the process of waste gas emission, it is necessary to purify the waste gas through corresponding treatment devices, and use sampling and detection devices to monitor the degree of harm of the waste gas.

[0003] It was found that the following problems have not been well solved: 1. During the sampling process, the extraction tube needs to be inserted into the emission pipe. Since there is a certain flow rate in the exhaust gas emission process, if the extraction speed of the pump is lower than the exhaust gas inflow speed, a large amount of harmful substances in the exhaust gas will accumulate in the extraction pipe, which will increase the content of harmful substances in the sample drawn in, resulting in the sample being unable to accurately reflect the exhaust gas status; 2. Secondly, during the sampling process, it is not convenient to continuously sample samples at different locations and at different times, it is not convenient to perform multiple sampling in a short time, and it is not convenient to use the device. Summary of the invention

[0004] The purpose of the present invention is to provide an exhaust gas collection sampling device and a method of use to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions: an exhaust gas collection sampling device, comprising a shell, an air intake pipe is connected to the inner wall of the shell, the end of the air intake pipe is connected to a pump, and a balancing mechanism is provided on one side of the pump, a bottom cover is plugged into the bottom wall of the shell, a plurality of sampling tanks are plugged into the top annular array of the bottom cover, and a control mechanism is provided on the side of the sampling tank;

[0005] The balancing mechanism includes a placement bin, the outer wall of the placement bin is fixedly connected to the inner wall of the shell, a shaft is rotatably connected to the inner wall of the placement bin, and two groups of shafts are symmetrically arranged about the inner wall of the placement bin, and a group of truncated cone blocks are inserted into the inner walls of the two shafts, one group of truncated cone blocks is composed of two truncated cone blocks arranged oppositely, and the ends of the two truncated cone blocks are rotatably connected to positioning blocks, and the inner walls of the truncated cone blocks and the positioning blocks are connected to the shaft via splines;

[0006] The front ends of the two shafts are respectively provided with a pump and a driving motor, the bottom ends of the two positioning blocks are rotatably connected with an inner plate, and an outer plate is inserted between the two inner plates.

[0007] Preferably, the sampling tank includes an intake rod, the bottom end of the intake rod is fixedly connected to the bottom wall of the sampling tank, and the intake rod is hollow, and exhaust ports are provided on both sides of the intake rod. A blocking valve is sleeved on the outer wall of the intake rod, and the outer diameter of the blocking valve matches the inner diameter of the sampling tank. A valve plate is rotatably connected to the inner wall of the intake rod, and a small gear is fixedly connected to the end of the shaft of the valve plate;

[0008] A return spring is fixedly connected to the top wall of the sampling tank, the bottom end of the return spring is fixedly connected to a control ring, the control ring is sleeved on the intake rod, and a tooth groove is provided on the inner wall of the control ring, and the tooth groove meshes with the small gear.

[0009] Preferably, the balance mechanism further includes an annular member, the outer wall of the annular member is slidably connected to the inner wall of the placement bin, two oppositely arranged gear grooves are provided in the inner wall of the annular member, and gear blocks are meshed on the sides of the two gear grooves, and the two gear blocks are respectively fixedly connected to the bottom ends of the two outer plates. The bottom end of the annular member is hinged with a telescopic plate, and the bottom end of the telescopic plate meshes with a trigger plate;

[0010] An intake pipe is horizontally arranged at the lower end of the annular member, and the inner wall of the intake pipe is rotatably connected to the shaft end of the trigger plate. The outer diameter of the trigger plate matches the inner diameter of the intake pipe, and the end of the intake pipe is communicated with the pump body.

[0011] Preferably, the bottom end of the telescopic plate has a gear surface formed by machining, and the bottom end of the telescopic plate is attached to the top end of the trigger plate.

[0012] Preferably, the control mechanism includes a receiving bin, the bottom end of the receiving bin is fixedly connected to the bottom wall of the housing, a gear disk is rotatably connected to the inner wall of the receiving bin, a cavity is provided in the inner wall of the gear disk, and a drain pipe is slidably connected to the inner wall of the cavity. There are two drain pipes symmetrically arranged about the axis of the cavity, and the two drain pipes are connected by a telescopic hose, and return springs are sleeved on the outer walls of the two drain pipes;

[0013] An intake chamber is horizontally arranged at the top end of the gear disk, the top end of the intake chamber is fixedly connected to the top end of the housing, an air outlet channel is provided in the inner wall of the intake chamber, and a U-shaped intake hole is provided in the inner wall of the air outlet channel. A rubber plug is slidably connected to the inner wall of the air outlet channel, and a return spring is fixedly connected to the top end of the rubber plug.

[0014] Preferably, the control mechanism also includes a movable groove, a carrying plate is fixedly connected to the inner wall of the movable groove, a positioning rod is inserted in the inner wall of the carrying plate, a shaft sleeve is sleeved on the outer wall of the positioning rod, a power storage gear is rotatably connected to the outer wall of the shaft sleeve, a power storage wheel is horizontally arranged below the power storage gear, and the power storage gear and the shaft sleeve are connected by a coil spring, and the power storage wheel is arranged on the shaft sleeve through a bearing sleeve, the bottom end of the power storage gear and the top end of the power storage wheel are both inserted with annular gear blocks, and the two annular gears are meshed, and the ends of the two annular gears are fixedly connected with strong springs, the outer wall of the power storage wheel is meshed with the outer wall of the shaft rod, the bottom end of the positioning rod is hinged to a limiting rod, and a cross bar is fixedly connected to the side wall of the limiting rod;

[0015] A release groove with a W-shaped structure is provided on the side wall of the accommodating chamber, and the end of the release groove is connected to a guide groove with an inverted W structure, and the guide groove and the release groove are connected end to end.

[0016] Preferably, a compression spring is sleeved on the outer wall of the positioning rod, and the top end of the compression spring is fixedly connected to the inner wall of the shell, the top end of the positioning rod extends to the top end of the shell, and the top end of the shell is rotatably connected to a button.

[0017] A method for using an exhaust gas collection and sampling device comprises the following steps:

[0018] S1. The staff puts the air intake pipe into the exhaust duct to be tested, presses the button, and starts the device. At this time, a large amount of smoke flows into the device along the air intake pipe. Since the smoke in the external exhaust duct has a certain flow rate, after the smoke enters the air intake pipe, the original impact force of the smoke and the suction of the pump can control the opening angle of the trigger plate according to the flow rate of the smoke.

[0019] S2. Then, as the trigger plate is gradually opened, the trigger plate and the telescopic plate are meshed, causing the telescopic plate to gradually shift to the left, and the telescopic plate synchronously pushes the annular plate to move left. Since the inner wall of the annular plate is provided with gear grooves arranged opposite to each other, the two gear blocks rotate in opposite directions on the annular plate, causing the two frustum blocks on the right to contract inwards, while the two frustum blocks on the left to expand outwards, causing the contact area of ​​the transmission belt on the two sets of frustum blocks to change, thereby causing the transmission ratio to change, and the pumping force can be adjusted according to the flow rate of the incoming smoke;

[0020] S3. Next, the flue gas enters the intake chamber through the pump. The airflow bypasses the rubber plug through the intake holes of the C-shaped structure and enters the drain pipe, and then converges into the intake rod through the drain pipe. Along with the continuous inflow of the airflow, the flue gas enters the sampling tank and continuously pushes the blocking valve upward. When the blocking valve moves to the maximum distance, it will move upward and push the control ring upward. When the control ring is forced to rise, the control ring drives the small gear to rotate through the tooth grooves on the inner wall. The small gear rotates, and then drives the valve plate to rotate clockwise. At this time, the intake stops.

[0021] S4. At the same time, during the continuous pumping of the flue gas, since the shaft rod on the frustum block of the rear set is meshed with the energy storage wheel, when the frustum block rotates, it can synchronously drive the energy storage wheel and the upper energy storage gear to continuously rotate. At the same time, since the energy storage gear and the shaft sleeve are connected by a coil spring, and the energy storage gear is located at the lower end of the gear disk at this time, the energy storage gear rotates normally. The energy storage gear drives the energy storage wheel to store energy through the coil spring. At the same time, when the energy storage gear rotates continuously and rapidly, since annular tooth blocks are inserted at the bottom and top ends of the energy storage gear and the energy storage wheel, and the two annular gears are meshed, and strong springs are fixedly connected to the ends of the two annular gears, when the torsion spring is stretched to the maximum distance, at this time the energy storage gear is still rotating, and the two annular tooth blocks are mutually squeezed and separated and displaced, so that the energy storage state can be continuously maintained without causing the shaft rod to be stuck.

[0022] S5. When the staff presses the button again, the motor is turned off at this time. At the same time, the button pushes the positioning rod below. The positioning rod moves slightly downward. At this time, the cross bar on the limiting rod rotatably connected to the end of the positioning rod will contact the groove wall of the release groove, so that the cross bar offsets to the right side of the release groove through the inclined groove wall. At this time, the compression spring drives the positioning rod to push the button to release and move upward. At this time, the energy storage gear and the energy storage wheel move upward synchronously. The energy storage gear meshes with the gear disk. The coil spring on the energy storage gear is released. The energy storage gear拨动 the gear disk to rotate. The gear disk rotates. The gear disk drives the telescopically arranged drain pipe to move towards the next group of sampling tanks. When the drain pipe passes through the intake rod, the bottommost drain pipe contracts and moves upward and inserts into the intake rod. At the same time, the drain pipe inserts into the intake passage and pushes the rubber plug upward to expose the intake hole. At this time, the airflow in the intake chamber can enter the sampling tank along the drain pipe, and continuous multiple samplings can be carried out.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] In the present invention, through the setting of the balance mechanism, the pumping speed of the pump can be changed according to the冲入 speed of the waste gas, so that the pumping speed and the冲入 speed of the waste gas are balanced, avoiding too large a difference resulting in a decrease or increase in the content of harmful substances and affecting the usability of the sample.

[0025] In the present invention, through the coordinated arrangement of the shaft rod and the power storage wheel, when gas enters therein, the power storage gear can be controlled by the pump to store power, thereby facilitating the use of power and the use of the device.

[0026] In the present invention, through the setting of the control mechanism, after the gas extraction is completed, the power storage gear can be triggered to drive the gear plate to rotate, and the next group of sampling cans can be selected to facilitate subsequent continuous sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the general assembly of the present invention;

[0028] Figure 2 The schematic diagram of the cross-sectional structure of the general assembly of the present invention is shown in FIG. Figure 1 ;

[0029] Figure 3 The schematic diagram of the cross-sectional structure of the general assembly of the present invention is shown in FIG. Figure 2 ;

[0030] Figure 4 The cross-sectional structure diagram of the balancing mechanism in the present invention is shown in FIG. Figure 1 ;

[0031] Figure 5 The cross-sectional structure diagram of the balancing mechanism in the present invention is shown in FIG. Figure 2 ;

[0032] Figure 6 For the present invention Figure 5 The enlarged structural diagram at A in the middle;

[0033] Figure 7 It is a schematic diagram of the structure of the ring member in the present invention;

[0034] Figure 8 It is a schematic diagram of the control mechanism structure in the present invention;

[0035] Fig. 9 It is a schematic diagram of the cross-sectional structure of the air intake bin in the present invention;

[0036] Fig.10 It is a schematic diagram of the structure of the power storage gear in the present invention;

[0037] Fig.11 It is a schematic diagram of the release groove and the guide groove structure in the present invention;

[0038] Fig.12 It is a schematic diagram of the structure of the gear plate and the sampling tank in the present invention;

[0039] Fig.13 The cross-sectional structure of the sampling tank in the present invention is shown in FIG. Figure 1 ;

[0040] Fig.14The cross-sectional structure of the sampling tank in the present invention is shown in FIG. Figure 2 .

[0041] In the figure: 1, housing; 2, air inlet pipe; 3, balancing mechanism; 31, placement chamber; 32, shaft rod; 33, truncated cone block; 34, positioning block; 35, inner plate; 36, outer plate; 37, ring member; 38, gear groove; 39, gear block; 310, telescopic plate; 311, trigger plate; 312, air inlet pipe; 4, bottom cover; 5, sampling tank; 51, air inlet rod; 52, blocking valve; 53, valve plate; 54, small gear; 55 , return spring; 56, control ring; 6, control mechanism; 61, accommodating chamber; 62, gear plate; 63, vent pipe; 64, air inlet chamber; 65, air outlet; 66, air inlet hole; 67, rubber plug; 68, movable groove; 69, bearing plate; 610, positioning rod; 611, bushing; 612, power storage gear; 613, power storage wheel; 614, limit rod; 615, cross bar; 616, release groove; 617, guide groove. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0043] See also Figures 1 to 14 The present invention provides a technical solution: an exhaust gas collection sampling device, comprising a shell 1, an air intake pipe 2 is connected to the inner wall of the shell 1, a pump is connected to the end of the air intake pipe 2, and a balancing mechanism 3 is arranged on one side of the pump, a bottom cover 4 is plugged into the bottom wall of the shell 1, a plurality of sampling tanks 5 are plugged into the top annular array of the bottom cover 4, and a control mechanism 6 is arranged on the side of the sampling tank 5;

[0044] The balancing mechanism 3 includes a placement bin 31, the outer wall of the placement bin 31 is fixedly connected to the inner wall of the housing 1, a shaft 32 is rotatably connected to the inner wall of the placement bin 31, and two groups of shafts 32 are symmetrically arranged about the inner wall of the placement bin 31, and a group of truncated cone blocks 33 are inserted into the inner walls of the two shafts 32, and a group of truncated cone blocks 33 is composed of two truncated cone blocks 33 arranged opposite to each other, and the ends of the two truncated cone blocks 33 are rotatably connected to positioning blocks 34, and the inner walls of the truncated cone blocks 33 and the positioning blocks 34 are connected to the shaft 32 through splines;

[0045] The front ends of the two shafts 32 are respectively provided with a pump and a driving motor. The bottom ends of the two positioning blocks 34 are rotatably connected with inner plates 35 , and an outer plate 36 is inserted between the two inner plates 35 .

[0046] In this embodiment, as 13 and Fig.14 As shown, the sampling tank 5 includes an air inlet rod 51, the bottom end of the air inlet rod 51 is fixedly connected to the bottom wall of the sampling tank 5, and the air inlet rod 51 is hollow, and exhaust ports are opened on both sides of the air inlet rod 51, a blocking valve 52 is sleeved on the outer wall of the air inlet rod 51, and the outer diameter of the blocking valve 52 matches the inner diameter of the sampling tank 5, a valve plate 53 is rotatably connected to the inner wall of the air inlet rod 51, and a pinion 54 is fixedly connected to the end of the shaft end of the valve plate 53;

[0047] A return spring 55 is fixedly connected to the top wall of the sampling tank 5, and a control ring 56 is fixedly connected to the bottom end of the return spring 55. The control ring 56 is sleeved on the air inlet rod 51. A tooth groove is provided on the inner wall of the control ring 56, and the tooth groove is meshed with the pinion 54, so that the valve can be closed quickly after being filled with gas, and the valve can be kept closed by the internal air pressure, which is convenient for the staff to use later.

[0048] In this embodiment, Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the balancing mechanism 3 further includes an annular member 37, the outer wall of the annular member 37 is slidably connected to the inner wall of the placement bin 31, two gear grooves 38 are provided in the inner wall of the annular member 37, and the sides of the two gear grooves 38 are meshed with gear blocks 39, and the two gear blocks 39 are respectively fixedly connected to the bottom ends of the two outer plates 36, and the bottom end of the annular member 37 is hinged with a telescopic plate 310, and the bottom end of the telescopic plate 310 is meshed with a trigger plate 311;

[0049] An air inlet pipe 312 is horizontally arranged at the lower end of the annular member 37, and the inner wall of the air inlet pipe 312 is rotatably connected to the axial end of the trigger plate 311. The outer diameter of the trigger plate 311 matches the inner diameter of the air inlet pipe 312, and the end of the air inlet pipe 312 is connected to the pump body. Through the arrangement of the annular member 37, the speed of subsequent pumping can be changed according to the speed of the airflow rushing in, so that the pumping speed matches the airflow speed.

[0050] In this embodiment, Figure 1 , Figure 2 and Figure 3 As shown, the bottom end of the telescopic plate 310 has a gear surface formed by machining, and the bottom end of the telescopic plate 310 is fitted with the top end of the trigger plate 311, so that when the trigger plate 311 rotates, it can push the telescopic plate 310 to rotate relatively, thereby controlling the upper ring member 37 to move horizontally.

[0051] In this embodiment, Figure 5 and Figure 6As shown, the control mechanism 6 includes a accommodating chamber 61, the bottom end of which is fixedly connected to the bottom wall of the housing 1, a gear plate 62 is rotatably connected to the inner wall of the accommodating chamber 61, a cavity is formed in the inner wall of the gear plate 62, and an air release pipe 63 is slidably connected to the inner wall of the cavity, two air release pipes 63 are symmetrically arranged about the axis of the cavity, and the two air release pipes 63 are connected by a telescopic hose, and a return spring is sleeved on the outer wall of the two air release pipes 63;

[0052] An air inlet bin 64 is horizontally arranged at the top of the gear plate 62, and the top of the air inlet bin 64 is fixedly connected to the top of the outer shell 1, an air outlet 65 is opened in the inner wall of the air inlet bin 64, and an air inlet hole 66 with a U-shaped structure is opened in the inner wall of the air outlet 65, a rubber plug 67 is slidably connected to the inner wall of the air outlet 65, and a return spring is fixedly connected to the top of the rubber plug 67. Through the arrangement of a telescopic air release pipe 63 and a plurality of sampling tanks 5, the air release pipe 63 can be changed through the control mechanism 6 to connect different sampling tanks 5, so as to realize continuous sampling of different samples.

[0053] In this embodiment, Figure 2 , Figure 3 , Fig. 9 , Fig.10 and Fig.11 As shown, the control mechanism 6 also includes a movable groove 68, a bearing plate 69 is fixedly connected to the inner wall of the movable groove 68, a positioning rod 610 is inserted into the inner wall of the bearing plate 69, a shaft sleeve 611 is sleeved on the outer wall of the positioning rod 610, a power storage gear 612 is rotatably connected to the outer wall of the shaft sleeve 611, a power storage wheel 613 is horizontally arranged below the power storage gear 612, and the power storage gear 612 and the shaft sleeve 611 are connected by a coil spring, and the power storage wheel 613 is sleeved on the shaft sleeve 611 through a bearing sleeve, an annular tooth block is inserted at the bottom end of the power storage gear 612 and the top end of the power storage wheel 613, and the two annular gears are meshed, and the ends of the two annular gears are fixedly connected to a strong spring, the outer wall of the power storage wheel 613 is meshed with the outer wall of the shaft rod 32, and a limiting rod 614 is hinged to the bottom end of the positioning rod 610, and a cross bar 615 is fixedly connected to the side wall of the limiting rod 614;

[0054] A release groove 616 with a W-shaped structure is provided on the side wall of the accommodating chamber 61, and the end of the release groove 616 is connected to a guide groove 617 with an inverted W structure. The guide groove 617 and the release groove 616 are connected end to end. The power storage gear 612 is controlled by a button to move up and down, so that after the sampling is completed, it can be triggered instantly to switch to the next group of sampling tanks 5 for use.

[0055] In this embodiment, Figure 2 , Figure 3 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown in Fig.12 , a compression spring is sleeved on the outer wall of the positioning rod 610, and the top end of the compression spring is fixedly connected to the inner wall of the housing 1. The top end of the positioning rod 610 extends to the top end of the housing 1, and a button is rotatably connected to the top end of the housing 1. The control mechanism 6 can be controlled to switch through the button, which is convenient for the operation of the staff.

[0056] In this embodiment, as Figures 1 to 14 shown, a method for using an exhaust gas collection and sampling device includes the following steps:

[0057] S1. The staff puts the intake pipe 2 into the flue to be detected, presses the button to start the device. At this time, a large amount of flue gas enters the device along the intake pipe 2. Due to the certain flow rate of the flue gas in the external flue, after the flue gas enters the intake pipe 312, the original impact force of the flue gas and the suction of the pump can control the opening angle of the trigger plate 311 according to the flow rate of the flue gas汇入;

[0058] S2. Then, as the trigger plate 311 is gradually opened, since the trigger plate 311 and the telescopic plate 310 are meshed, the telescopic plate 310 gradually shifts to the left. The telescopic plate 310 synchronously pushes the annular plate to move left. Since the inner wall of the annular plate is provided with oppositely arranged gear grooves 38, the two gear blocks 39 rotate in opposite directions on the annular plate, causing the two conical blocks 33 on the right side to contract inward, and the two conical blocks 33 on the left side to expand outward, so that the contact area of the transmission belt on the two groups of conical blocks 33 changes, and then the transmission ratio changes, and the pumping force can be adjusted according to the flow rate of the flue gas entering;

[0059] S3. Then, the flue gas enters the air inlet chamber 64 through the pump, and the air flow bypasses the rubber plug 67 through the U-shaped air inlet hole 66 and enters the exhaust pipe 63, and then汇入 the air inlet rod 51 through the exhaust pipe 63. Along with the continuous汇入 of the air flow, the flue gas enters the sampling tank 5 and continuously pushes the blocking valve 52 upward. When the blocking valve 52 moves to the maximum distance, it will move upward to push the control ring 56 upward. When the control ring 56 is forced to rise, the control ring 56 drives the small gear 54 to rotate through the tooth grooves on the inner wall, the small gear 54 rotates, and then drives the valve plate 53 to rotate clockwise, and at this time, the air intake stops;

[0060] S4. At the same time, during the process of continuous pumping of smoke, since the shaft rod 32 on the rear set of truncated cone blocks 33 is meshed with the power storage wheel 613, when the truncated cone blocks 33 rotate, the power storage wheel 613 and the power storage gear 612 above can be synchronously driven to rotate continuously. At the same time, since the power storage gear 612 is connected to the shaft sleeve 611 through a coil spring, and the power storage gear 612 is located at the lower end of the gear plate 62 at this time, the power storage gear 612 rotates normally, and the power storage gear 612 drives the power storage wheel 613 to rotate continuously. The overwinding spring is used to store force. When the force storage gear 612 rotates continuously and rapidly, since annular gear blocks are inserted at the bottom and top of the force storage gear 612 and the force storage wheel 613, and the two annular gears are meshed, and the ends of the two annular gears are fixedly connected with strong springs, when the torsion spring is stretched to the maximum distance, the force storage gear 612 is still rotating, and the two annular gear blocks are squeezed, separated and misaligned from each other, so that the force storage state can be maintained continuously without causing the shaft rod 32 to be stuck;

[0061] S5. When the staff member presses the button again, the motor is turned off. At the same time, the button pushes the positioning rod 610 below, and the positioning rod 610 moves down slightly. At this time, the cross bar 615 on the limit rod 614 connected to the end of the positioning rod 610 rotates and contacts the groove wall of the release groove 616, so that the cross bar 615 is offset to the right side of the release groove 616 through the inclined groove wall. At this time, the positioning rod 610 is driven by the compression spring to push the button to release and move up. At this time, the power storage gear 612 and the power storage wheel 613 move up synchronously, and the power storage gear 612 is meshed with the gear plate 62. The coil spring on the power storage gear 612 is released, and the power storage gear 612 drives the gear plate 62 to rotate. The gear plate 62 rotates, and the gear plate 62 drives the telescopic air release pipe 63 to move toward the next group of sampling tanks 5. When the air release pipe 63 passes through the air intake rod 51, the air release pipe 63 at the bottom shrinks and moves upward and is inserted into the air intake rod 51. At the same time, the air release pipe 63 is inserted into the air intake duct, pushing the rubber plug 67 upward to expose the air intake hole 66. At this time, the airflow in the air intake bin 64 can enter the sampling tank 5 along the air release pipe 63, and continuous and multiple sampling can be performed.

[0062] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An exhaust gas collection and sampling device, comprising a housing (1), characterized in that: An air intake pipe (2) is connected to the inner wall of the housing (1), the end of the air intake pipe (2) is connected to a pump, and a balancing mechanism (3) is provided on one side of the pump; a bottom cover (4) is plugged into the bottom wall of the housing (1), a plurality of sampling tanks (5) are plugged into a circular array at the top end of the bottom cover (4), and a control mechanism (6) is provided on the side of the sampling tank (5); The balancing mechanism (3) comprises a placement bin (31), the outer wall of the placement bin (31) being fixedly connected to the inner wall of the housing (1), a shaft (32) being rotatably connected to the inner wall of the placement bin (31), and two groups of shafts (32) being symmetrically arranged with respect to the inner wall of the placement bin (31), and a group of frustum blocks (33) being inserted into the inner walls of the two shafts (32), one group of frustum blocks (33) being composed of two frustum blocks (33) arranged opposite to each other, and the ends of the two frustum blocks (33) being rotatably connected to positioning blocks (34), and the inner walls of the frustum blocks (33) and the positioning blocks (34) being connected to the shaft (32) via splines; The front ends of the two shafts (32) are respectively provided with a pump and a drive motor, the bottom ends of the two positioning blocks (34) are rotatably connected to an inner plate (35), and an outer plate (36) is inserted between the two inner plates (35); The balancing mechanism (3) further comprises an annular member (37), the outer wall of the annular member (37) being slidably connected to the inner wall of the placement bin (31), the inner wall of the annular member (37) being provided with two gear grooves (38) arranged opposite to each other, the sides of the two gear grooves (38) being meshed with gear blocks (39), and the two gear blocks (39) being fixedly connected to the bottom ends of the two outer plates (36), respectively, the bottom end of the annular member (37) being hinged with a telescopic plate (310), and the bottom end of the telescopic plate (310) being meshed with a trigger plate (311); An air inlet pipe (312) is horizontally arranged at the lower end of the annular member (37), and the inner wall of the air inlet pipe (312) is rotatably connected to the shaft end of the trigger plate (311), the outer diameter of the trigger plate (311) matches the inner diameter of the air inlet pipe (312), and the end of the air inlet pipe (312) is connected to the pump body; The bottom end of the telescopic plate (310) has a gear surface formed by mechanical processing, and the bottom end of the telescopic plate (310) is arranged in close contact with the top end of the trigger plate (311).

2. The exhaust gas collection and sampling device according to claim 1, characterized in that: The sampling tank (5) comprises an air intake rod (51), the bottom end of the air intake rod (51) is fixedly connected to the bottom wall of the sampling tank (5), the air intake rod (51) is hollow, and exhaust ports are provided on both sides of the air intake rod (51), a blocking valve (52) is sleeved on the outer wall of the air intake rod (51), and the outer diameter of the blocking valve (52) matches the inner diameter of the sampling tank (5), a valve plate (53) is rotatably connected to the inner wall of the air intake rod (51), and a pinion gear (54) is fixedly connected to the end of the shaft end of the valve plate (53); A reset spring (55) is fixedly connected to the top wall of the sampling tank (5). The bottom end of the reset spring (55) is fixedly connected to a control ring (56). The control ring (56) is sleeved on the intake rod (51). Tooth grooves are formed on the inner wall of the control ring (56), and the tooth grooves are engaged with the small gear (54).

3. The exhaust gas collection and sampling device according to claim 2, characterized in that: The control mechanism (6) includes a receiving chamber (61). The bottom end of the receiving chamber (61) is fixedly connected to the bottom wall of the housing (1). A gear disk (62) is rotatably connected to the inner wall of the receiving chamber (61). A cavity is formed in the inner wall of the gear disk (62), and an air discharge pipe (63) is slidably connected to the inner wall of the cavity. Two air discharge pipes (63) are symmetrically arranged about the axis of the cavity, and the two air discharge pipes (63) are connected by a telescopic hose. Reset springs are sleeved on the outer walls of the two air discharge pipes (63). An intake chamber (64) is horizontally arranged at the top end of the gear disk (62). The top end of the intake chamber (64) is fixedly connected to the top end of the housing (1). An air outlet passage (65) is formed in the inner wall of the intake chamber (64), and an intake hole (66) with a U-shaped structure is formed in the inner wall of the air outlet passage (65). A rubber plug (67) is slidably connected to the inner wall of the air outlet passage (65). The top end of the rubber plug (67) is fixedly connected to a reset spring.

4. The exhaust gas collection and sampling device according to claim 3, characterized in that: The control mechanism (6) further includes a movable groove (68). A bearing plate (69) is fixedly connected to the inner wall of the movable groove (68). A positioning rod (610) is inserted into the inner wall of the bearing plate (69). A bushing (611) is sleeved on the outer wall of the positioning rod (610). A power storage gear (612) is rotatably connected to the outer wall of the bushing (611). A power storage wheel (613) is horizontally arranged below the power storage gear (612). A winding spring is connected between the power storage gear (612) and the bushing (611). The power storage wheel (613) is sleeved on the bushing (611) through a bearing. Annular tooth blocks are inserted at the bottom end of the power storage gear (612) and the top end of the power storage wheel (613), and the two annular gears are engaged. Strong springs are fixedly connected to the ends of the two annular gears. The outer wall of the power storage wheel (613) is engaged with the outer wall of the shaft rod (32). The bottom end of the positioning rod (610) is hinged to a limiting rod (614). A cross bar (615) is fixedly connected to the side wall of the limiting rod (614). A release groove (616) with a W-shaped structure is formed in the side wall of the receiving chamber (61). The end of the release groove (616) communicates with a guiding groove (617) arranged in an inverted W structure. The guiding groove (617) and the release groove (616) are arranged end to end.

5. The exhaust gas collection and sampling device according to claim 4, characterized in that: A compression spring is sleeved on the outer wall of the positioning rod (610). The top end of the compression spring is fixedly connected to the inner wall of the housing (1). The top end of the positioning rod (610) extends to the top end of the housing (1), and a button is rotatably connected to the top end of the housing (1).

6. The method for using the exhaust gas collection and sampling device according to claim 5, characterized in that: Including the following steps: S1. The staff places the intake pipe (2) into the flue to be detected, presses the button to start the device. At this time, a large amount of flue gas enters the device along the intake pipe (2). Due to the certain flow rate of the flue gas in the external flue, after the flue gas enters the intake pipe (312), the original impact force of the flue gas and the suction of the pump enable the opening angle of the trigger plate (311) to be controlled according to the flow rate of the converging flue gas; S2.紧接着伴随着触发板(311)的逐步打开,由于触发板(311)和伸缩板(310)之间采用啮合设置,使得伸缩板(310)逐步向左边偏移,伸缩板(310)同步推动环形板左移,由于环形板的内壁上开设有相对设置的齿轮槽(38),使得两个齿轮块(39)在环形板上转动的方向为相反设置,致使右侧的两个圆台块(33)向内收缩设置,而左侧的两个圆台块(33)为向外展开设置,使得传动带在两组圆台块(33)上的接触面积发生的变化,进而导致传动比发生变化,能够根据烟气进入的流速去调整泵入的力度; S2. Immediately following the gradual opening of the trigger plate (311), since the trigger plate (311) and the telescopic plate (310) are meshed, the telescopic plate (310) gradually shifts to the left. The telescopic plate (310) synchronously pushes the annular plate to move left. Since the inner wall of the annular plate is provided with oppositely arranged gear grooves (38), the rotation directions of the two gear blocks (39) on the annular plate are opposite, causing the two frustum blocks (33) on the right side to contract inward, while the two frustum blocks (33) on the left side expand outward, resulting in a change in the contact area of the transmission belt on the two groups of frustum blocks (33), thereby causing a change in the transmission ratio, and enabling the pumping force to be adjusted according to the flow rate of the incoming flue gas; S3.接着烟气通过泵机进入进气仓(64)中,气流通过匚字形结构的进气孔(66)绕过橡胶塞(67)进入泄气管(63)中,再通过泄气管(63)汇入进气杆(51)中,伴随着气流的持续汇入,烟气进入取样罐(5)中且不断的将阻塞阀(52)上升顶起,致使阻塞阀(52)移动到最大距离时,会上移将控制环(56)向上顶动,当控制环(56)受力上升时,控制环(56)通过内壁上的齿槽推动小齿轮(54)转动,小齿轮(54)发生旋转,进而推动阀片(53)顺时针转动,此时停止进气; S3. Then the flue gas enters the air inlet chamber (64) through the pump. The air flow bypasses the rubber plug (67) through the U-shaped air inlet hole (66) and enters the drain pipe (63), and then enters the air inlet rod (51) through the drain pipe (63). Along with the continuous inflow of the air flow, the flue gas enters the sampling tank (5) and continuously pushes the blocking valve (52) upward. When the blocking valve (52) moves to the maximum distance, it will move upward to push the control ring (56) upward. When the control ring (56) is forced to rise, the control ring (56) drives the small gear (54) to rotate through the tooth grooves on the inner wall. The small gear (54) rotates, and then pushes the valve plate (53) to rotate clockwise, and at this time, the air intake stops; S4.同时,在烟气持续泵入的过程中,由于后侧一组的圆台块(33)上的轴杆(32)与蓄力轮(613)采用啮合设置,使得圆台块(33)转动时,能够同步带动蓄力轮(613)和上方的蓄力齿轮(612)持续转动,同时由于蓄力齿轮(612)与轴套(611)之间通过卷簧相连接,且蓄力齿轮(612)此时位于齿轮盘(62)的下端,这时蓄力齿轮(612)正常转动,蓄力齿轮(612)带动蓄力轮(613)通过卷簧进行蓄力,同时在蓄力齿轮(612)持续快速转动时,由于蓄力齿轮(612)和蓄力轮(613)的底端和顶端处均插接设置有环形齿块,且两个环形齿轮相啮合设置,并且两个环形齿轮的末端均固定连接有强力弹簧,使得在扭簧拉伸到最大距离时,此时蓄力齿轮(612)仍在转动,两个环形齿块互相挤压分离并错位,使得能够持续保持蓄力状态的同时也不会导致轴杆(32)的卡死; S4. At the same time, during the continuous pumping of the flue gas, since the shaft rod (32) on the rear set of frustum blocks (33) is meshed with the energy storage wheel (613), when the frustum block (33) rotates, it can simultaneously drive the energy storage wheel (613) and the upper energy storage gear (612) to rotate continuously. At the same time, since the energy storage gear (612) is connected to the shaft sleeve (611) through a coil spring, and the energy storage gear (612) is located at the lower end of the gear disc (62) at this time, the energy storage gear (612) rotates normally. The energy storage gear (612) drives the energy storage wheel (613) to store energy through the coil spring. At the same time, when the energy storage gear (612) rotates continuously and rapidly, since annular tooth blocks are inserted at the bottom and top ends of the energy storage gear (612) and the energy storage wheel (613), and the two annular gears are meshed, and strong springs are fixedly connected to the ends of the two annular gears, when the torsion spring is stretched to the maximum distance, the energy storage gear (612) is still rotating, and the two annular tooth blocks are mutually extruded, separated, and misaligned, enabling the energy storage state to be continuously maintained without causing the shaft rod (32) to be stuck; S5. When the staff member presses the button again, the motor is turned off and the button pushes the positioning rod (610) below. The positioning rod (610) moves slightly downward. At this time, the cross bar (615) on the limit rod (614) connected to the end of the positioning rod (610) rotates and contacts the groove wall of the release groove (616), so that the cross bar (615) is offset to the right side of the release groove (616) through the inclined groove wall. At this time, the positioning rod (610) is driven by the compression spring to push the button to release and move upward. At this time, the power storage gear (612) and the power storage wheel (613) move upward synchronously, and the power storage gear (612) meshes with the gear plate (62). The coil spring on (612) is released, and the power storage gear (612) drives the gear plate (62) to rotate. The gear plate (62) rotates, and the gear plate (62) drives the telescopic air release pipe (63) to move toward the next group of sampling tanks (5). When the air release pipe (63) passes through the air intake rod (51), the air release pipe (63) at the bottom is contracted and moved upward and inserted into the air intake rod (51). At the same time, the air release pipe (63) is inserted into the air intake duct, pushing the rubber plug (67) upward to expose the air intake hole (66). At this time, the air flow in the air intake chamber (64) can enter the sampling tank (5) along the air release pipe (63), and continuous multiple sampling can be performed.

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