Multi-channel synchronous sampling device for atmosphere detection

Abstract

The invention discloses a multichannel synchronous sampling device for atmosphere detection, which is applied to the technical field of atmosphere detection.The multichannel synchronous sampling device comprises a sampling mechanism, the sampling mechanism comprises a shell, a collecting mechanism is arranged in the shell, and the collecting mechanism comprises a driving assembly, a metering assembly, a filtering assembly, a meshing assembly and an adjusting assembly; when the multi-channel synchronous sampling device for atmosphere detection is used, an operator preferentially takes the device to a required position, and then selects whether the device is used in a double-channel mode or a single-channel mode according to a sample needing to be sampled. And when the single channel needs to be used, the operator preferentially adjusts to enable the inner gear and the meshing gear to be canceled from meshing, and at the moment, the non-transmission effect of the second rotating rod on the needed side is achieved. By means of the arrangement, flexible adjustment of a double-channel and a single-channel under the using condition of the device is conveniently achieved, the high cost caused by using an existing electromagnetic valve is distinguished, and the structure is easy to operate and convenient to use.

Description

Technical Field

[0001] The invention belongs to the technical field of atmosphere detection, and in particular relates to a multi-channel synchronous sampling device for atmosphere detection. Background Art

[0002] The purpose of atmospheric sounding is to better understand and study the composition, structure, movement laws of the Earth's atmosphere and its relationship with human activities. Research in this field is of great significance to climate change, weather forecasting, environmental protection and other aspects. Through atmospheric sounding, scientists can obtain information about various gases, particulate matter, temperature, humidity and other information in the atmosphere, so as to better protect the Earth's environment, prevent natural disasters and promote the sustainable development of human society. This will use an atmospheric sampler, an instrument or device used to collect atmospheric pollutants or polluted atmosphere.

[0003] In the use of atmospheric samplers in the prior art, there are the following disadvantages: 1. In the use of atmospheric samplers, there are currently dual-channel samplers, which are convenient for sampling two samples at the same time, and are different from the single-channel operation in turns when multiple samples need to be sampled. And the dual channel can choose between simultaneous sampling and separate sampling, which has scalability. When selecting the sampling state, the current dual-channel samplers mostly use solenoid valves or closed channels for control. The setting of the solenoid valve will result in high cost of use, and when the channel is closed, the air pump under the same operating conditions will have different pressures in the use of dual channels and single channels, which will cause instability in the use of the sampler and bring inconvenience to the use; 2. After long-term use of the atmospheric sampler, the dust inside the float flowmeter needs to be cleaned. The current cleaning device is to clean the sampler step by step, remove the pipes at both ends of the float flowmeter, use the negative pressure ball to suck out the dust inside the float flowmeter, and then tediously reinstall the disassembled structure. This operation is inconvenient, which makes the installation and disassembly of the float flowmeter cumbersome and increases the operation volume. Summary of the invention

[0004] The purpose of the present invention is to provide a multi-channel synchronous sampling device for atmospheric detection, which has the advantage of realizing flexible adjustment of the dual-channel and single-channel when the device is used. The structure is simple to operate and convenient to use, which brings convenience of flexible adjustment to the sampling device. At the same time, it also distinguishes the different pressures in the use of the dual-channel and single-channel by the use of the air pump, avoiding the instability caused by the pressure in the use of the sampler; distinguishes the inconvenience and cumbersomeness of the existing disassembly of the float flowmeter and the disassembly of the air inlet and outlet connecting pipes of the flowmeter, wherein the setting of the bite block can replace the disassembly and installation of the existing connecting pipe, bringing convenience to the use of the float flowmeter.

[0005] The above technical purpose of the present invention is achieved through the following technical solutions: a multi-channel synchronous sampling device for atmospheric detection, comprising a sampling mechanism, the sampling mechanism comprising a shell, a collection mechanism is arranged inside the shell, the collection mechanism comprises a driving assembly, a metering assembly, a filtering assembly, a meshing assembly and an adjusting assembly, the driving assembly comprises a dual-axis motor, the metering assembly comprises a float flowmeter, the filtering assembly comprises an outer shell, the meshing assembly comprises an internal gear, the moving assembly comprises a push block, and the adjusting assembly comprises a connecting block.

[0006] By adopting the above technical scheme, when using the multi-channel synchronous sampling device for atmospheric detection, the operator first takes the device to the required position, and then selects whether to use the dual-channel or single-channel device according to the sample to be sampled. When it is necessary to use the single channel, the operator first adjusts the moving component on the required side so that the moving component drives the meshing component, and the non-transmission effect on the required side will be achieved. Then, the use of the sampling link will be realized by the operation of the driving component in conjunction with the metering component and the filtering component. Through this setting, it is convenient to realize the flexible adjustment of the dual-channel and single-channel when the device is used, which is different from the high cost of the existing use of electromagnetic valves, and the structure is simple to operate and convenient to use, which brings the convenience of flexible adjustment to the sampling device. At the same time, it is also different from the current use of the air pump in the use of the dual-channel and single-channel, which avoids the instability caused by the pressure in the use of the sampler. At the same time, in the use of the multi-channel synchronous sampling device for atmospheric detection, when the float flowmeter needs to be cleaned, the operator first disconnects the connection between the external sampling bottle and the joint five, and then adjusts the blockage of the air inlet pipe through the adjustment component. Under the adjustment of the adjustment component, the metering component completes the dust absorption and cleaning. With this setting, when cleaning, you only need to open the door and adjust the adjustment component to achieve the operation. Different from the cumbersomeness of the existing disassembly, and the inconvenience and cumbersomeness of disassembling the air inlet and outlet connecting pipes of the flow meter, this setting can replace the disassembly and installation of the existing connecting pipes, bringing convenience to the use of the sampling device.

[0007] The present invention is further configured as follows: a display screen is embedded in the surface of the shell, buttons located on both sides of the display screen are embedded in the surface of the shell, visual windows are embedded in both sides of the shell, a door body is hinged on the rear side of the shell, a handle is fixedly installed on the surface of the door body, rings are fixedly installed on both sides of the shell, support plates located at the bottom of the rings are fixedly installed on both sides of the shell, a fixing plate is fixedly installed inside the shell, a controller and a battery are respectively fixedly installed on the top of the fixing plate, and an opening is opened inside the door body.

[0008] With the above technical solution, the display screen, buttons, controller and battery are electrically connected to each other, and the opening of the door body will facilitate the operation of the inside of the shell, while the handle will facilitate the operation of the door body. The collar will be connected to the external sampling bottle, and the support plate will support the sampling bottle, and the support plate will support and fix the controller and the battery, and the opening will cooperate with the inside of the shell for air intake and heat dissipation.

[0009] The present invention is further configured as follows: a fixing ring fixedly connected to the inside of a shell body is fixedly sleeved on the surface of the dual-axis motor; output ends of the dual-axis motors are fixedly sleeved with a rotating rod 1 through a coupling; one end of the rotating rod 1 is provided with a rotating rod 2 rotatably connected to the inside of the shell body; one end of the rotating rod 2 is fixedly sleeved with a disc; a guide block is fixedly installed on one side of the disc; a guide ring is slidably sleeved on the surface of the guide block; a cylinder fixedly connected to the inside of the shell body is fixedly installed on the top of the guide ring; a connecting plate penetrating into the inside of the cylinder is fixedly installed on the top of the guide ring; a piston slidably connected to the inside of the cylinder body is fixedly installed on one end of the connecting plate; a one-way valve 1 and a one-way valve 2 are respectively connected to the surface of the cylinder.

[0010] By adopting the above technical scheme, the fixed ring will support and fix the dual-axis motor, and the operation of the dual-axis motor will drive the rotating rod 1 to rotate, and the rotation of the rotating rod 2 will drive the disc to rotate synchronously, and the disc will drive the guide block to realize the movement trend around the rotating rod 2 as the center of the circle, and the movement of the guide block will drive the guide ring to realize longitudinal reciprocating motion, and at the same time, the guide ring will drive the connecting plate and the piston to move, and the movement of the piston will realize the change of air pressure inside the cylinder, and the one-way valve 1 is used for air intake inside the cylinder, and the one-way valve 2 is used for air exhaust inside the cylinder, wherein both the one-way valve 1 and the one-way valve 2 are used for one-way ventilation.

[0011] The present invention is further configured as follows: the two ends of the top of the float flowmeter are respectively connected to joint one, the bottom of the float flowmeter is connected to joint two, the interior of the joint two is connected to a through pipe, the bottom of the through pipe is sleeved with a negative pressure ball, the interiors of the two joints one are respectively sleeved with an air intake pipe and a connecting pipe two, the rear side of the bottom of the float flowmeter is connected to joint three, and the interior of the joint three is fixedly installed with a connecting pipe one fixedly sleeved with the one-way valve two.

[0012] By adopting the above technical solution, the air inlet pipe is used in conjunction with the float flowmeter for subsequent air inlet and outlet cleaning, and the pressing of the negative pressure ball will cooperate with the through pipe to change the positive and negative pressure inside the float flowmeter. The connecting pipe 2 connects the air outlet of the float flowmeter with the shell, and the connecting pipe 1 connects the float flowmeter with the cylinder.

[0013] The present invention is further configured as follows: the outer shell is fixedly connected to the interior of the shell, a partition is fixedly installed inside the outer shell, a filter element located at the bottom of the partition is provided inside the outer shell, an end cover is threadedly connected to the surface of the bottom of the outer shell, a joint four is connected to the top of the outer shell and located on both sides of the partition, the joint four located on one side of the outer shell and the connecting pipe two are fixedly sleeved with each other, a hose is fixedly sleeved inside the joint four located on the other side of the outer shell, joints five are embedded on both sides of the top of the shell, and the hose and the joint five are fixedly sleeved with each other.

[0014] By adopting the above technical solution, the partition divides the interior of the shell into two parts, and the filter element filters the gas entering the interior of the shell, and the threaded end cap will facilitate installation and disassembly, wherein the disassembly of the end cap will facilitate the replacement of the filter element, and the hose transfers the gas inside the shell to the connector five, and the connector five is used to connect the external hose and the sampling bottle to achieve the gas transfer effect.

[0015] The present invention is further configured as follows: the number of the internal gear, rotating rod one and rotating rod two are all two, the internal gear and rotating rod one are fixedly sleeved with each other, the surface of the rotating rod two is sleeved with a meshing gear meshing with the internal gear, the inside of the meshing gear is fixedly sleeved with a shift ring sleeved on the surface of the rotating rod two, the surface of the rotating rod two is fixedly installed with a clamping strip, the inside of the shifting ring is provided with a clamping groove for cooperating with the clamping strip, and the surface of the shifting ring is rotatably connected to the rotating ring through a bearing.

[0016] By adopting the above technical solution, the rotation of the first rotating rod will drive the internal gear to rotate synchronously, and the movement of the rotating ring will drive the transfer ring to move, and the movement of the transfer ring will realize the movement of the meshing gear on the surface of the second rotating rod, wherein the setting of the clamping groove and the clamping strip will realize the clamping positioning of the transfer ring and the second rotating rod, so that the transfer ring can realize the transmission of the transfer ring and the second rotating rod while the transfer ring moves on the surface of the second rotating rod. And in the meshing of the meshing gear and the internal gear, the synchronous rotation of the first rotating rod, the internal gear, the meshing gear and the second rotating rod can be realized.

[0017] The present invention is further configured as follows: a connecting plate 1 rotatably connected to a swivel is fixedly installed at one end of the push block, an inner block is provided on the inner side of the connecting plate 1, sliders are fixedly installed on both sides of the inner block, a sliding groove for cooperating with the sliding of the slider is provided inside the connecting plate 1, a rod body 1 is fixedly installed on the top and bottom of the inner block, and the rod body 1 is rotatably connected to the inner side of the shell through a bearing.

[0018] By adopting the above technical solution, during the lateral movement of the push block, an arc motion will be performed around the rod body 1 as the center of the circle, and the push block will drive the connecting plate 1 and the swivel at one end thereof to perform lateral movement, and the lateral movement of the swivel on the surface of the rotating rod 2 will be realized. During the movement of the push block, in view of the problem of change in the coordinates of the center of the circle in its arc motion, this embodiment realizes the dynamic adjustment of the inner block 2053 on the inner side of the connecting plate 1 2052 through the sliding connection mechanism between the slider 2054 and the slide groove 2055, so as to ensure that the pushing function of the push block 2051 can be effectively exerted.

[0019] The present invention is further configured as follows: a card joint is provided inside the push block and penetrates to the top of the push block, a plate body located inside the push block is fixedly installed at the bottom of the card joint, a spring fixedly connected to the inside of the push block is fixedly installed at the bottom of the plate body, the other end of the push block penetrates to the surface of the shell, and arc grooves are provided on both sides of the shell surface for cooperating with the push block to penetrate.

[0020] By adopting the above technical solution, the clamping connection between the clamping joint and the arc groove will realize the limiting fixation of the push block position. When the spring is in use, the extension of the spring will cooperate with the clamping joint to contact the arc groove, and the plate body will connect and install the clamping joint and the spring.

[0021] The present invention is further configured as follows: a rod body 2 is fixedly installed on the top and the bottom of the connecting block, the rod body 2 is rotatably connected to the inner side of the shell through a bearing, a bite block is fixedly installed on one end of the connecting block, the bite block is located between the air intake pipe and the connecting pipe 2, a connecting plate 2 is fixedly installed on the other side of the connecting block, a pinching plate 1 that penetrates the surface of the shell is fixedly installed on one end of the connecting plate 2, a rod body 3 is fixedly installed on both sides of the pinching plate 1, a pinching plate 2 that is sleeved on the surface of the rod body 3 is provided at the bottom of the pinching plate 1, a torsion spring is sleeved on the surface of the rod body 3, both ends of the torsion spring are respectively fixedly connected to the pinching plate 1 and the pinching plate 2, and a clamping cavity for cooperating with the pinching plate 2 is provided on both sides of the shell.

[0022] By adopting the above technical solution, in the position adjustment of one end of the connecting plate 2, an arc adjustment is performed around the rod body 2 as the center through the connecting block. When it is necessary to adjust the bite block to contact the intake pipe, the pinching plate 1 and the pinching plate 2 are adjusted to move to the right. First, the operator pinches the pinching plate 2 and moves it close to the pinching plate 1. After the pinching plate 1 and the pinching plate 2 are moved to the inside of the clamping cavity, a force is applied to the pinching plate 2. At this time, the pinching plate 2 can be driven to be clamped and limited with the inside of the clamping cavity through the contraction and extension of the torsion spring, thereby forming a limit fixation of the pinching plate 1 and the pinching plate 2. At the same time, the bite block contacts the intake pipe and blocks the intake pipe to avoid ventilation of the intake pipe.

[0023] In summary, the present invention has the following beneficial effects: 1. When using the multi-channel synchronous sampling device for atmosphere detection, the operator should first take the device to the required position, and then choose whether to use the dual-channel or single-channel device according to the sample to be sampled. When it is necessary to use a single channel, the operator should first adjust the internal gear and the meshing gear to cancel the meshing, and then the non-transmission effect of the second rotating rod on the required side will be achieved. This setting facilitates the flexible adjustment of the dual-channel and single-channel when the device is used, which is different from the high cost of the existing use of solenoid valves. The structure is simple to operate and easy to use, which brings the convenience of flexible adjustment to the sampling device. At the same time, it also distinguishes the different pressures in the use of dual channels and single channels through the use of air pumps, avoiding instability caused by pressure in the use of the sampler; 2. In the use of the multi-channel synchronous sampling device for atmospheric detection, when it is necessary to clean the float flowmeter, the operator shall first adjust the bite block, which will block the connecting pipe 2 and close the connection between the float flowmeter and the housing. At the same time, through the setting of the one-way valve 2, the operator gently presses the negative pressure ball, and after pressing the negative pressure ball to a certain extent, quickly releases the force on the negative pressure ball. At this time, the dust inside the float flowmeter will be adsorbed into the negative pressure ball through the relationship between positive and negative pressure. The operator can clean or replace the hose and the negative pressure ball by canceling the socket connection between the hose and the joint. With this setting, when cleaning the float flowmeter, the operation can be realized by simply opening the door body. Different from the existing inconvenience and cumbersomeness of disassembling the float flowmeter and disassembling the air inlet and air outlet connecting pipes of the flow meter, the setting of the bite block can replace the disassembly and installation of the existing connecting pipes, which brings convenience to the use of the float flowmeter. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a schematic diagram of the rear side of the housing of the present invention; Figure 3 It is a schematic diagram of the sampling mechanism and the collection mechanism of the present invention; Figure 4 It is an enlarged schematic diagram of the driving assembly, metering assembly and moving assembly of the present invention; Figure 5 It is an exploded and enlarged schematic diagram of the guide block and the guide ring of the present invention in cooperation with each other; Figure 6 It is an exploded and enlarged schematic diagram of the driving assembly and the meshing assembly of the present invention; Figure 7 It is an exploded and enlarged schematic diagram of the moving assembly and the moving ring of the present invention; Figure 8 is an enlarged cross-sectional schematic diagram of a mobile assembly of the present invention; Fig. 9It is an exploded and enlarged schematic diagram of the card connector, the plate body and the spring of the present invention; Fig.10 It is an enlarged schematic diagram of the driving assembly, metering assembly and filtering assembly of the present invention; Fig.11 is an enlarged schematic diagram of the regulating assembly of the present invention; Fig.12 It is an exploded and enlarged schematic diagram of the pinching plate 1 and the pinching plate 2 of the present invention.

[0025] Reference numerals: 1. Sampling mechanism; 101. Housing; 102. Display screen; 103. Button; 104. Visual window; 105. Door; 106. Handle; 107. Ring; 108. Support plate; 109. Controller; 1010. Battery; 1011. Fixing plate; 1012. Opening; 2. Collection mechanism; 201. Drive assembly; 2011. Dual-axis motor; 2012. Fixed ring; 2013. Rotating rod 1; 2014. Disc; 2015. Guide block; 2016. Guide ring; 2017. Cylinder; 2018. Connecting plate; 2019. Piston; 20110. One-way valve 1; 20111. One-way valve 2; 20112. Rotating rod 2; 202. Measuring group 2021, float flowmeter; 2022, connector 1; 2023, connector 2; 2024, connecting pipe 1; 2025, connecting pipe 2; 2026, through pipe; 2027, negative pressure ball; 2028, connector 3; 2029, intake pipe; 203, filter assembly; 2031, housing; 2032, partition; 2033, filter element; 2034, end cover; 2035, Connector 4; 2036, hose; 2037, connector 5; 204, meshing assembly; 2041, internal gear; 2042, meshing gear; 2043, shift ring; 2044, snap-on strip; 2045, snap-on groove; 2046, swivel; 205, moving assembly; 2051, push block; 2052, connecting plate 1; 2053, internal block; 2054, slider; 2055, slide groove ; 2056, rod body one; 2057, clamping joint; 2058, plate body; 2059, spring; 20510, arc groove; 206, adjustment assembly; 2061, connecting block; 2062, rod body two; 2063, bite block; 2064, clamping cavity; 2065, connecting plate two; 2066, pinching plate one; 2067, rod body three; 2068, pinching plate two; 2069, torsion spring. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0027] Embodiment 1: refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 A multi-channel synchronous sampling device for atmospheric detection includes a sampling mechanism 1, the sampling mechanism 1 includes a housing 101, a collection mechanism 2 is arranged inside the housing 101, the collection mechanism 2 includes a driving component 201, a metering component 202, a filtering component 203, a meshing component 204 and an adjusting component 206, the driving component 201 includes a dual-axis motor 2011, the metering component 202 includes a float flowmeter 2021, the filtering component 203 includes a housing 2031, the meshing component 204 includes an internal gear 2041, and the moving component 205 includes a push block 2051. When using the multi-channel synchronous sampling device for atmospheric detection, the operator first takes the device to the desired position, and then selects whether to use the dual-channel or single-channel of the device according to the sample to be sampled. When it is necessary to use a single channel, the operator first adjusts the moving component 205 on the required side so that the moving component 205 drives the meshing component 204, and at this time, the non-transmission effect on the required side will be achieved. Then, the driving component 201 is operated to cooperate with the metering component 202 and the filtering component 203 to realize the use of the sampling link. This setting facilitates the flexible adjustment of the dual-channel and single-channel when the device is used, which is different from the high cost of the existing electromagnetic valve. The structure is simple to operate and easy to use, which brings the convenience of flexible adjustment to the sampling device. At the same time, it also distinguishes the different pressures in the use of the dual-channel and single-channel by the use of the air pump, avoiding the instability caused by the pressure in the use of the sampler.

[0028] refer to Figure 1 , Figure 2 , Figure 3A display screen 102 is embedded in the surface of the shell 101, buttons 103 located on both sides of the display screen 102 are embedded in the surface of the shell 101, visual windows 104 are embedded in both sides of the shell 101, a door body 105 is hinged on the rear side of the shell 101, a handle 106 is fixedly installed on the surface of the door body 105, rings 107 are fixedly installed on both sides of the shell 101, and a support plate 108 located at the bottom of the ring 107 is fixedly installed on both sides of the shell 101, a fixing plate 1011 is fixedly installed inside the shell 101, and a controller 109 and a battery 1010 are fixedly installed on the top of the fixing plate 1011 respectively, an opening 1012 is opened inside the door body 105, the display screen 102, the button 103, the controller 109 and the battery 1010 are electrically connected to each other, and the opening of the door body 105 will facilitate the operation of the inside of the shell 101, and the handle 106 facilitates the operation of the door body 105. The collar 107 will be used to fit the external sampling bottle, and the support plate 108 will support the sampling bottle, and the support plate 108 will support and fix the controller 109 and the battery 1010, and the opening 1012 will cooperate with the interior of the shell 101 for air intake and heat dissipation.

[0029] refer to Figure 3 , Figure 4 , Figure 5The surface of the dual-axis motor 2011 is fixedly sleeved with a fixing ring 2012 fixedly connected to the inside of the shell 101, and the output ends of the dual-axis motor 2011 are fixedly sleeved with a rotating rod 2013 through a coupling. One end of the rotating rod 2013 is provided with a rotating rod 20112 rotatably connected to the inside of the shell 101, and one end of the rotating rod 20112 is fixedly sleeved with a disc 2014, and a guide block 2015 is fixedly installed on one side of the disc 2014. A guide ring 2016 is slidably sleeved on the surface of the guide block 2015. A cylinder 2017 fixedly connected to the inside of the shell 101 is provided on the top of the guide ring 2016. A connecting plate 2018 that penetrates into the inside of the cylinder 2017 is fixedly installed on the top of the guide ring 2016. A piston 2019 that is slidably connected to the inside of the cylinder 2017 is fixedly installed on one end of the connecting plate 2018. The surface of the cylinder 2017 is respectively connected to a one-way valve 20110 and a one-way valve 20110. The valve 20111 and the fixing ring 2012 will support and fix the dual-axis motor 2011, and the operation of the dual-axis motor 2011 will drive the rotating rod 1 2013 to rotate, and the rotation of the rotating rod 20112 will drive the disc 2014 to rotate synchronously, and the disc 2014 will drive the guide block 2015 to realize the movement trend around the rotating rod 20112 as the center of the circle, and the movement of the guide block 2015 will drive the guide ring 2016 to realize The guide ring 2016 will drive the connecting plate 2018 and the piston 2019 to move longitudinally, and the movement of the piston 2019 will realize the change of the air pressure inside the cylinder 2017. The one-way valve 1 20110 is used for air intake inside the cylinder 2017, and the one-way valve 20111 is used for air exhaust inside the cylinder 2017, wherein the one-way valve 1 20110 and the one-way valve 2 20111 are both used for one-way ventilation.

[0030] refer to Figure 3 , Figure 4 , Fig.10 The two ends of the top of the float flowmeter 2021 are respectively connected to the joint 1 2022, the bottom of the float flowmeter 2021 is connected to the joint 2 2023, the interior of the joint 2 2023 is connected to the through pipe 2026, the bottom of the through pipe 2026 is sleeved with a negative pressure ball 2027, the interiors of the two joints 1 2022 are respectively sleeved with an intake pipe 2029 and a connecting pipe 2 2025, the rear side of the bottom of the float flowmeter 2021 is connected to the joint 3 2028, the interior of the joint 3 2028 is fixedly installed with a connecting pipe 1 2024 fixedly sleeved with the one-way valve 20111, the intake pipe 2029 is used for the subsequent cleaning of the interior of the float flowmeter 2021 for air intake and exhaust, and the pressing of the negative pressure ball 2027 will cooperate with the through pipe 2026 to change the positive and negative pressure inside the float flowmeter 2021. The connecting pipe 2025 connects the air outlet of the float flowmeter 2021 with the housing 2031 , and the connecting pipe 1 2024 connects the float flowmeter 2021 with the cylinder 2017 .

[0031] refer to Figure 3 , Fig.10 The housing 2031 is fixedly connected to the inside of the housing 101, a partition 2032 is fixedly installed inside the housing 2031, a filter element 2033 is provided inside the housing 2031 at the bottom of the partition 2032, an end cap 2034 is threadedly connected to the surface of the bottom of the housing 2031, a connector 2035 is connected to the top of the housing 2031 and both sides of the partition 2032, the connector 2035 on one side of the housing 2031 is fixedly sleeved with the connecting pipe 2025, a hose 2036 is fixedly sleeved inside the connector 2035 on the other side of the housing 2031, and the top of the housing 101 is connected to the bottom of the housing 101. Connectors 5 2037 are embedded on both sides, and the hose 2036 and the connector 5 2037 are fixedly connected to each other. The partition 2032 divides the interior of the shell 2031 into two parts. At the same time, the filter element 2033 filters the gas entering the shell 2031, and the threaded end cap 2034 will facilitate installation and disassembly. The disassembly of the end cap 2034 will facilitate the replacement of the filter element 2033. The hose 2036 transfers the gas inside the shell 2031 to the connector 5 2037, and the connector 5 2037 is used to connect the external hose 2036 and the sampling bottle to achieve the gas transfer effect.

[0032] refer to Figure 3 , Figure 4 , Figure 5 The number of the inner gear 2041, the rotating rod 1 2013 and the rotating rod 20112 are all two, the inner gear 2041 and the rotating rod 1 2013 are fixedly sleeved with each other, the surface of the rotating rod 20112 is sleeved with a meshing gear 2042 that meshes with the inner gear 2041, the interior of the meshing gear 2042 is fixedly sleeved with a shift ring 2043 that is sleeved on the surface of the rotating rod 20112, the surface of the rotating rod 20112 is fixedly installed with a clamping strip 2044, the interior of the shift ring 2043 is provided with a clamping groove 2045 for clamping with the clamping strip 2044, and the surface of the shift ring 2043 is The bearing is rotatably connected with a rotating ring 2046, and the rotation of the rotating rod 1 2013 will drive the internal gear 2041 to rotate synchronously, and the movement of the rotating ring 2046 will drive the shifting ring 2043 to move, and the movement of the shifting ring 2043 will realize the movement of the meshing gear 2042 on the surface of the rotating rod 20112, wherein the clamping groove 2045 and the clamping strip 2044 are provided to realize the clamping positioning of the shifting ring 2043 and the rotating rod 20112, so that the shifting ring 2043 can move on the surface of the rotating rod 20112, and realize the transmission of the shifting ring 2043 and the rotating rod 20112. In addition, in the meshing of the meshing gear 2042 and the internal gear 2041, the synchronous rotation of the rotating rod 1 2013, the internal gear 2041, the meshing gear 2042 and the rotating rod 20112 can be realized.

[0033] refer to Figure 4 , Figure 7 , Figure 8 A connecting plate 2052 rotatably connected to the swivel 2046 is fixedly installed at one end of the push block 2051, an inner block 2053 is provided on the inner side of the connecting plate 2052, sliders 2054 are fixedly installed on both sides of the inner block 2053, a slide groove 2055 for sliding with the slider 2054 is provided inside the connecting plate 2052, a rod body 2056 is fixedly installed on the top and bottom of the inner block 2053, and the rod body 2056 is rotatably connected to the inner side of the housing 101 through a bearing. When the push block 2051 is moved horizontally, the rod body 2056 is rotated around the rod body. The push block 2051 will drive the connecting plate 2052 and the rotating ring 2046 at one end thereof to move horizontally, thereby realizing the horizontal movement of the rotating ring 2046 on the surface of the rotating rod 20112. During the movement of the push block 2051, in view of the problem of change in the coordinates of the center of the circle in its arc motion, this embodiment realizes the dynamic adjustment of the inner block 2053 on the inner side of the connecting plate 2052 through the sliding connection mechanism between the slider 2054 and the slide groove 2055, so as to ensure that the pushing function of the push block 2051 can be effectively exerted.

[0034] refer to Figure 7 , Figure 8 , Fig. 9 The interior of the push block 2051 is provided with a clamping joint 2057 that penetrates to the top of the push block 2051, and a plate body 2058 located inside the push block 2051 is fixedly installed at the bottom of the clamping joint 2057, and a spring 2059 fixedly connected to the inside of the push block 2051 is fixedly installed at the bottom of the plate body 2058. The other end of the push block 2051 penetrates the surface of the shell 101, and arc grooves 20510 are provided on both sides of the surface of the shell 101 for use with the push block 2051 to penetrate. The clamping connection between the clamping joint 2057 and the arc groove 20510 will realize the limit fixation of the position of the push block 2051. When the spring 2059 is in use, the extension of the spring 2059 will cooperate with the clamping joint 2057 to contact the arc groove 20510, and the plate body 2058 connects and installs the clamping joint 2057 and the spring 2059.

[0035] Brief description of the use process: When using the multi-channel synchronous sampling device for atmospheric detection, the operator first takes the device to the required position, and then selects whether to use the dual-channel or single-channel device according to the sample to be sampled. When a single channel is required, the operator first adjusts the push block 2051 on the required side. In the lateral movement of the push block 2051, an arc movement will be performed around the rod body 1 2056 as the center of the circle, and the push block 2051 will drive the connecting plate 1 2052 and the rotating ring 2046 at one end thereof to move horizontally, and the rotating ring 2046 will be realized. The lateral movement of the rotating ring 2046 on the surface of the rotating rod 20112 will be realized. In the movement of the push block 2051, in view of the problem of the change of the center coordinates of the arc movement, this embodiment realizes the dynamic adjustment of the inner block 2053 on the inner side of the connecting plate 1 2052 through the sliding connection mechanism between the slider 2054 and the slide groove 2055, so as to ensure that the pushing function of the push block 2051 can be effectively exerted. The arrangement of this structure utilizes the arc-shaped pushing effect of one end of the push block 2051 to replace the linear motion caused by directly pushing the push block 2051, in order to avoid the deformation of the push block 2051 caused by the distance between the force point of the push block 2051 and the driven point being too long, and the arc motion is more convenient for exerting force. The clamping connection between the clamping joint 2057 and the arc groove 20510 will realize the limit fixation of the position of the push block 2051, and when the spring 2059 is used, the extension of the spring 2059 will cooperate with the clamping joint 2057 to contact the arc groove 20510, and the plate 2058 will connect and install the clamping joint 2057 and the spring 2059. The movement of the push block 2051 will drive the rotating ring 2046 and the moving ring 2043 to move. The movement of the shift ring 2043 will realize the movement of the meshing gear 2042 on the surface of the second rotating rod 20112, wherein the shift ring 2043 and the second rotating rod 20112 will be clamped and positioned by the setting of the clamping groove 2045 and the clamping strip 2044, so that the shift ring 2043 can move on the surface of the second rotating rod 20112 and realize the transmission of the shift ring 2043 and the second rotating rod 20112. This setting will realize the disengagement of the inner gear 2041 and the meshing gear 2042, and at this time, the non-transmission effect of the second rotating rod 20112 on the desired side will be achieved. Subsequently, the operation of the dual-axis motor 2011 will drive the rotating rod 1 2013 to rotate, and the rotation of the rotating rod 1 2013 will drive the internal gear 2041 to rotate synchronously, wherein the meshing gear 2042 and the internal gear 2041 are engaged, and the synchronous rotation of the rotating rod 1 2013, the internal gear 2041, the meshing gear 2042 and the rotating rod 2 20112 can be achieved.During the rotation of the rotating rod 20112, the disc 2014 will be driven to rotate synchronously, and the disc 2014 will drive the guide block 2015 to realize a movement trend around the rotating rod 20112 as the center of the circle. During the movement of the guide block 2015, the guide ring 2016 will be driven to realize longitudinal reciprocating motion. At the same time, the guide ring 2016 will drive the connecting plate 2018 and the piston 2019 to move. The movement of the piston 2019 will realize the change of the air pressure inside the cylinder 2017, and the one-way valve 1 20110 is used for air intake inside the cylinder 2017, and the one-way valve 20111 is used for air exhaust inside the cylinder 2017. The one-way valve 1 20110 and the one-way valve 2 20111 are both used for one-way ventilation, and the sampling link of the sample will be realized at this time. The display screen 102, the button 103, the controller 109 and the battery 1010 are electrically connected to each other, and the opening of the door body 105 will facilitate the operation of the inner side of the housing 101, and the handle 106 will facilitate the operation of the door body 105. The collar 107 will be connected to the external sampling bottle, and the support plate 108 will support the sampling bottle, and the support plate 108 will support and fix the controller 109 and the battery 1010, and the opening 1012 will cooperate with the inside of the housing 101 for air intake and heat dissipation. Through this setting, it is easy to realize the flexible adjustment of the double channel and the single channel when the device is used, which is different from the high cost of the existing electromagnetic valve, and the structure is simple to operate and easy to use, which brings the convenience of flexible adjustment to the sampling device. At the same time, it also distinguishes the different pressures in the use of the double channel and the single channel through the use of the air pump, avoiding the instability caused by the pressure in the use of the sampler.

[0036] Embodiment 2: refer to Figure 1 , Figure 3 , Fig.10 , Fig.11 , Fig.12 A multi-channel synchronous sampling device for atmosphere detection includes a sampling mechanism 1, and an adjustment component 206 includes a connecting block 2061. When the float flowmeter needs to be cleaned during use of the multi-channel synchronous sampling device for atmosphere detection, the operator preferentially disconnects the connection between the external sampling bottle and the connector five, and then adjusts the blockage of the air inlet pipe through the adjustment component 206. Under the adjustment of the adjustment component 206, the metering component completes the adsorption and cleaning of dust. With this setting, when cleaning, it is only necessary to open the door body and adjust the adjustment component 206 to achieve the operation. Different from the cumbersomeness of the existing disassembly, and the inconvenience and cumbersomeness of disassembling the connecting pipes of the air inlet and the air outlet of the flow meter, this setting can replace the disassembly and installation of the existing connecting pipes, bringing convenience to the use of the sampling device.

[0037] refer to Figure 3 , Fig.11 , Fig.12The top and bottom of the connecting block 2061 are fixedly installed with a rod body 2062, and the rod body 2062 is rotatably connected to the inner side of the shell 101 through a bearing. A bite block 2063 is fixedly installed at one end of the connecting block 2061, and the bite block 2063 is located between the intake pipe 2029 and the connecting pipe 2025. A connecting plate 2065 is fixedly installed on the other side of the connecting block 2061, and one end of the connecting plate 2065 is fixedly installed with a screw thread that penetrates the shell. The pinching plate 1066 on the surface of the housing 101 is provided with a rod body 3 2067 fixedly installed on both sides of the pinching plate 1066. The bottom of the pinching plate 1066 is provided with a pinching plate 2068 sleeved with the surface of the rod body 3 2067. The surface of the rod body 3 2067 is sleeved with a torsion spring 2069. The two ends of the torsion spring 2069 are respectively fixedly connected to the pinching plate 1066 and the pinching plate 2068. Both sides of the housing 101 are provided with a clamping plate 2068 for cooperating with the pinching plate 2068. The clamping cavity 2064 used in the connection is used to adjust the position of one end of the connecting plate 2065, and the connecting block 2061 is used to make an arc adjustment around the rod body 2062 as the center. When the biting block 2063 needs to be adjusted to contact the air inlet pipe 2029, the pinching plate 1 2066 and the pinching plate 2 2068 are adjusted to move to the right. First, the operator pinches the pinching plate 2068 to move it closer to the pinching plate 1 2066, and waits until the pinching plate 1 2066 and the pinching plate 2 2068 are moved to the right. After 8 moves to the inside of the card-joining cavity 2064, force is applied to the pinching plate 2068. At this time, the pinching plate 2068 can be driven to be card-joined and limited with the inside of the card-joining cavity 2064 through the contraction and extension of the torsion spring 2069, thereby forming a limit fixation for the pinching plate 1 2066 and the pinching plate 2068. At the same time, the bite block 2063 contacts the air inlet pipe 2029 and blocks the air inlet pipe 2029 to prevent the air inlet pipe 2029 from being ventilated.

[0038] Brief description of the use process: In the use of the multi-channel synchronous sampling device for atmospheric detection, when it is necessary to clean the float flowmeter 2021, the operator first disconnects the connection between the external sampling bottle and the joint 5 2037, and then adjusts one end of the connecting plate 2065. In the position adjustment of one end of the connecting plate 2065, the arc adjustment is performed around the rod 2062 as the center through the connecting block 2061. When it is necessary to adjust the bite block 2063 to contact the intake pipe 2029, adjust the pinch plate 1 2066 and the pinch plate 2 2068 to move to the right. First, operate The user pinches the second pinching plate 2068 to move it closer to the first pinching plate 2066, and after the first pinching plate 2066 and the second pinching plate 2068 are moved to the inside of the clamping chamber 2064, the force applied to the second pinching plate 2068 can be driven by the contraction and extension of the torsion spring 2069 to clamp and limit the second pinching plate 2068 and the inside of the clamping chamber 2064, thereby forming a limit fixation of the first pinching plate 2066 and the second pinching plate 2068, and at the same time, the bite block 2063 contacts the air inlet pipe 2029 and blocks the air inlet pipe 2029 to prevent the air inlet pipe 2029 from being ventilated. Under normal use of the device, the bite block 2063 will achieve blocking contact with the air inlet pipe 2029. When the float flowmeter 2021 needs to be cleaned, the bite block 2063 will be adjusted to block the connection pipe 2025, and the connection between the float flowmeter 2021 and the housing 2031 will be closed. At the same time, through the setting of the one-way valve 20111, when the operator gently presses the negative pressure ball 2027, the air in the float flowmeter 2021 will not enter the inside of the cylinder 2017, but will be ejected outward from the air inlet pipe 2029, and the pressing method is a gentle state. Then, after the negative pressure ball 2027 is pressed to a certain extent, the force applied to the negative pressure ball 2027 is quickly released, and the dust inside the float flowmeter 2021 is adsorbed into the negative pressure ball 2027 through the relationship between positive and negative pressures. The operator can clean or replace the hose 2036 and the negative pressure ball 2027 by canceling the sleeve connection between the hose 2036 and the joint. Through this arrangement, when cleaning the float flowmeter 2021, the operation can be realized by simply opening the door body 105 and adjusting the negative pressure ball 2027. Different from the inconvenience and tediousness of disassembling the float flowmeter 2021 and disassembling the air inlet and air outlet connecting pipes of the flow meter, the setting of the bite block 2063 can replace the disassembly and installation of the existing connecting pipes, bringing convenience to the use of the float flowmeter 2021.

[0039] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A multi-channel synchronous sampling device for atmospheric detection, comprising a sampling mechanism (1), characterized in that: The sampling mechanism (1) comprises a housing (101), a collecting mechanism (2) is arranged inside the housing (101), the collecting mechanism (2) comprises a driving assembly (201), a metering assembly (202), a filtering assembly (203), a meshing assembly (204) and an adjusting assembly (206), the driving assembly (201) comprises a dual-axis motor (2011), the metering assembly (202) comprises a float flowmeter (2021), the filtering assembly (203) comprises a housing (2031), the meshing assembly (204) comprises an internal gear (2041), the moving assembly (205) comprises a push block (2051), and the adjusting assembly (206) comprises a connecting block (2061).

2. A multi-channel synchronous sampling device for atmosphere detection according to claim 1, characterized in that: A display screen (102) is embedded in the surface of the shell (101), buttons (103) are embedded in the surface of the shell (101) and are located on both sides of the display screen (102), visual windows (104) are embedded in both sides of the shell (101), a door body (105) is hingedly connected to the rear side of the shell (101), a handle (106) is fixedly installed on the surface of the door body (105), a collar (107) is fixedly installed on both sides of the shell (101), a support plate (108) located at the bottom of the collar (107) is fixedly installed on both sides of the shell (101), a fixing plate (1011) is fixedly installed inside the shell (101), a controller (109) and a storage battery (1010) are fixedly installed on the top of the fixing plate (1011), and an opening (1012) is opened inside the door body (105).

3. The multi-channel synchronous sampling device for atmosphere detection according to claim 1, characterized in that: The surface of the dual-axis motor (2011) is fixedly sleeved with a fixing ring (2012) fixedly connected to the inside of the housing (101); the output ends of the dual-axis motor (2011) are fixedly sleeved with a rotating rod (2013) via a coupling; one end of the rotating rod (2013) is provided with a rotating rod (20112) rotatably connected to the inside of the housing (101); one end of the rotating rod (20112) is fixedly sleeved with a disk (2014); one side of the disk (2014) is fixedly mounted with a guide block (2015); the guide block (2015) is fixedly sleeved with a fixing ring (2012) fixedly connected to the inside of the housing (101); and the guide block (2015) is fixedly sleeved with a fixing ring (2012) fixedly connected to the inside of the housing (101). 15) is slidably sleeved with a guide ring (2016), the top of the guide ring (2016) is provided with a cylinder (2017) fixedly connected to the inside of the shell (101), the top of the guide ring (2016) is fixedly installed with a connecting plate (2018) that penetrates into the inside of the cylinder (2017), one end of the connecting plate (2018) is fixedly installed with a piston (2019) that is slidably connected to the inside of the cylinder (2017), and the surface of the cylinder (2017) is respectively connected to a one-way valve 1 (20110) and a one-way valve 2 (20111).

4. A multi-channel synchronous sampling device for atmosphere detection according to claim 3, characterized in that: The two ends of the top of the float flowmeter (2021) are respectively connected to connector 1 (2022), the bottom of the float flowmeter (2021) is connected to connector 2 (2023), the interior of connector 2 (2023) is connected to a through pipe (2026), the bottom of the through pipe (2026) is sleeved with a negative pressure ball (2027), the interiors of the two connectors 1 (2022) are respectively sleeved with an intake pipe (2029) and a connecting pipe 2 (2025), the rear side of the bottom of the float flowmeter (2021) is connected to connector 3 (2028), and the interior of connector 3 (2028) is fixedly installed with a connecting pipe 1 (224) that is fixedly sleeved with the one-way valve 2 (20111).

5. A multi-channel synchronous sampling device for atmosphere detection according to claim 4, characterized in that: The shell (2031) is fixedly connected to the inside of the shell (101), a partition (2032) is fixedly installed inside the shell (2031), a filter element (2033) is provided inside the shell (2031) and is located at the bottom of the partition (2032), an end cover (2034) is threadedly connected to the surface of the bottom of the shell (2031), a joint four (2035) is connected to the top of the shell (2031) and both sides of the partition (2032), the joint four (2035) located on one side of the shell (2031) and the connecting pipe two (2025) are fixedly sleeved together, a hose (2036) is fixedly sleeved inside the joint four (2035) located on the other side of the shell (2031), and a joint five (2037) is embedded on both sides of the top of the shell (101), and the hose (2036) and the joint five (2037) are fixedly sleeved together.

6. The multi-channel synchronous sampling device for atmosphere detection according to claim 3, characterized in that: The number of the internal gear (2041), the first rotating rod (2013) and the second rotating rod (20112) is two; the internal gear (2041) and the first rotating rod (2013) are fixedly sleeved with each other; the surface of the second rotating rod (20112) is sleeved with a meshing gear (2042) meshing with the internal gear (2041); the interior of the meshing gear (2042) is fixedly sleeved with a shift ring (2043) sleeved on the surface of the second rotating rod (20112); the surface of the second rotating rod (20112) is fixedly mounted with a snap-fit ​​strip (2044); the interior of the shift ring (2043) is provided with a snap-fit ​​groove (2045) for snapping with the snap-fit ​​strip (2044); the surface of the shift ring (2043) is rotatably connected with a swing ring (2046) via a bearing.

7. A multi-channel synchronous sampling device for atmosphere detection according to claim 6, characterized in that: A connecting plate 1 (2052) rotatably connected to the rotating ring (2046) is fixedly mounted on one end of the push block (2051); an inner block (2053) is provided on the inner side of the connecting plate 1 (2052); sliders (2054) are fixedly mounted on both sides of the inner block (2053); a sliding groove (2055) for sliding with the sliders (2054) is provided inside the connecting plate 1 (2052); a rod body 1 (2056) is fixedly mounted on the top and bottom of the inner block (2053); the rod body 1 (2056) is rotatably connected to the inner side of the housing (101) via a bearing.

8. A multi-channel synchronous sampling device for atmosphere detection according to claim 7, characterized in that: The push block (2051) is provided with a clamping joint (2057) extending through the top of the push block (2051), the bottom of the clamping joint (2057) is fixedly mounted with a plate (2058) located inside the push block (2051), the bottom of the plate (2058) is fixedly mounted with a spring (2059) fixedly connected to the inside of the push block (2051), the other end of the push block (2051) extends through the surface of the shell (101), and arc grooves (20510) are provided on both sides of the surface of the shell (101) for the push block (2051) to pass through.

9. The multi-channel synchronous sampling device for atmosphere detection according to claim 4, characterized in that: The top and bottom of the connection block (2061) are both fixedly mounted with a second rod body (2062), and the second rod body (2062) and the inner side of the shell (101) are rotatably connected to each other via a bearing. A bite block (2063) is fixedly mounted on one end of the connection block (2061), and the bite block (2063) is located between the air intake pipe (2029) and the second connection pipe (2025). A second connecting plate (2065) is fixedly mounted on the other side of the connection block (2061), and a second connecting plate (2065) is fixedly mounted on one end of the connecting plate (2065) that penetrates the surface of the shell (101). A pinching plate (2066) is provided, and rod bodies (2067) are fixedly mounted on both sides of the pinching plate (2066). A pinching plate (2068) is provided at the bottom of the pinching plate (2066) and is sleeved with the surface of the rod body (2067). A torsion spring (2069) is sleeved on the surface of the rod body (2067). The two ends of the torsion spring (2069) are respectively fixedly connected to the pinching plate (2066) and the pinching plate (2068). A clamping cavity (2064) for clamping with the pinching plate (2068) is provided on both sides of the housing (101).

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