CN213516528U - Atmospheric sampling device - Google Patents

Abstract

The utility model discloses an atmosphere sampling device for solve current atmosphere sampling device and have the problem of potential safety hazard in the use, the utility model discloses an atmosphere sampling device, including being used for placing subaerial base, set on the base and to carry out pivoted rolling wheel, the winding takes turns to there is the traction tube in the winding, the traction tube is connected with the balloon, the middle part of traction tube is formed with airflow channel, the balloon is binded on the traction tube and is made to form the clearance that is used for the air current to pass between balloon and the airflow channel through the strapping rope, the one end and the balloon fixed connection of traction tube, the other end winding of traction tube is then on the rolling wheel and communicates each other with the intake pipe of installing the air exhauster on the base, the outlet duct intercommunication of air exhauster has the collecting vessel that is used for accomodating the air.

Description

Atmospheric sampling device

Technical Field

The utility model belongs to the technical field of atmospheric detection; in particular to an atmosphere sampling device.

Background

Along with the higher living standard of people, the requirement on air quality is higher, and therefore, the sampling detection on the atmosphere is more and more. The important steps of atmospheric environment detection during atmospheric sampling have great reliability relation to detection data, and methods for collecting atmospheric samples mainly comprise two types: one is to make a large amount of air pass through a liquid absorbent or a solid adsorbent to absorb or retain pollutants, and enrich the original pollutants with lower concentration in the atmosphere, such as an air extraction method and a filter membrane method. The result of measurements with this type of method is the average concentration of the contaminants in the atmosphere over the sampling time. Another type is to use containers (glass bottles, plastic bags, rubber bladders, syringes, etc.) to collect air containing contaminants. Such methods are useful in situations where the concentration of pollutants in the atmosphere is high; or the sensitivity of the determination method is higher; contaminated gases and vapors that are not readily absorbed by liquid absorbents or solid adsorbents. The result of this measurement is the instantaneous concentration or the average concentration in a short time of the pollutants in the atmosphere.

The current methods for collecting air containing pollutants by using containers mainly comprise two methods: for high-altitude atmospheric sampling, atmospheric samples are mainly collected in modes of balloons, aircrafts and the like; for low-altitude atmospheric sampling, a handheld device is mainly adopted for collecting the atmospheric sample.

For high-altitude atmospheric sampling, cost control is limited, and currently, a balloon sampling mode is mainly adopted. In the prior art, technical documents about collecting air samples by using balloons are more, for example, a utility model patent with application number 201920561410.1 discloses an atmospheric particulate matter collecting and detecting device, which comprises a base, an induced draft fan, a collecting box and an atmospheric particulate matter concentration monitor; a motor is installed above the base, a wireless remote controller is placed above the base on one side of the motor, the collection box is installed above the base plate, an induced draft fan is installed on one side of the collection box in a penetrating mode, an atmospheric particulate matter concentration monitor is installed inside the collection box, a control box is installed on the other side of the collection box, and a hydrogen balloon is installed above the collection box; the output end of the motor is provided with a rope winding wheel, the surface of the rope winding wheel is wound with a traction pipe, and the top end of the traction pipe is fixedly connected with the bottom of the base plate; the collection box side of control box top is run through and is installed out the tuber pipe, the surface mounting who goes out the tuber pipe has the solenoid valve, the ventilation hole has been seted up to the collection box inboard of draught fan below.

However, the manner of bringing the collecting and detecting device together into the high altitude through the balloon has very high requirements on the bearing capacity of the balloon, which results in higher manufacturing cost; when an accident occurs (such as the balloon traction tube is broken under the condition of external force, and the balloon is damaged), because the number of components of the detection device carried by the balloon is large, a large potential safety hazard also exists.

SUMMERY OF THE UTILITY MODEL

Based on above technical problem, the utility model provides an atmosphere sampling device can reduce the weight that the thing was carried to the balloon to can reduce the volume of balloon, reduce the cost of manufacturing, also can reduce the potential safety hazard simultaneously.

For solving the above technical problem, the utility model discloses a technical scheme as follows:

the utility model provides an atmosphere sampling device, includes the base, set on the base and to carry out pivoted rolling wheel, the winding has the traction tube on the rolling wheel, the traction tube is connected with the balloon, a serial communication port, the middle part of traction tube is formed with airflow channel, the balloon is binded on the traction tube and is made to form the clearance that is used for the air to flow through between balloon and the airflow channel through the strapping rope, the one end and the balloon fixed connection of traction tube, the other end winding of traction tube then communicates each other with the intake pipe of the air exhauster of installing on the base on the rolling wheel, the outlet duct intercommunication of air exhauster has the collection section of thick bamboo that is used for accomodating the air.

In some embodiments, the collecting cylinder comprises a sealed cylinder body, a piston which can slide in the cylinder body and is sealed with the cylinder body is arranged in the cylinder body, a first one-way valve used for discharging gas in the cylinder body is installed at the top and the bottom of the cylinder body, an electromagnetic reversing valve is communicated with an air outlet pipe of the air exhauster, the air outlet pipe of the air exhauster is communicated with an air inlet of the electromagnetic reversing valve, the electromagnetic reversing valve is provided with a first air outlet and a second air outlet, a second one-way valve used for guiding gas into the cylinder body is installed at the top of the cylinder body, the first air outlet corresponds to and is communicated with the second one-way valve, the second air outlet is communicated with a gas transmission pipeline, and the gas transmission pipeline is communicated with the bottom of the cylinder body and can input gas into the cylinder body.

In some embodiments, the volume of gas in the barrel is greater than the sum of the volume of the gas flow passage of the draft tube and the volume of gas between the suction tube to gas delivery conduit of the suction fan and the barrel connection end.

In some embodiments, a travel switch is mounted at the inner top of the cylinder, the travel switch is electrically connected with the electromagnetic directional valve, and a pressing block for touching a moving contact of the travel switch is mounted on the upper surface of the piston.

In some embodiments, the inner top of the cylinder body is provided with a mounting groove, the travel switch is mounted in the mounting groove, and a moving contact of the travel switch extends downwards to the inner top surface of the cylinder body.

In some embodiments, a hollow rotating shaft with a cavity is provided in the middle of the winding wheel, two ends of the hollow rotating shaft are mounted on the base through bearing seats, the end of the traction tube wound on the winding wheel is communicated with the cavity of the hollow rotating shaft, a sealing cover is provided at one end of the hollow rotating shaft, and a piston head is sleeved on the periphery of the other end of the hollow rotating shaft and extends into the air inlet pipe of the exhaust fan and is sealed with the air inlet pipe.

In some embodiments, a plurality of wear-resistant sealing rings are arranged on the periphery of the piston head and/or the inner wall of the air inlet pipe of the exhaust fan.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

the utility model discloses an atmosphere sampling device is in the use, at first through the traction tube on the release rolling wheel, make the balloon rise to the assigned height, then the air exhauster begins work, introduce the air current in the high air into the intake pipe of air exhauster through the air flow channel of traction tube, then enter into the solenoid directional valve through the outlet duct of air exhauster, and enter into the barrel through the second gas outlet and the gas transmission pipeline of solenoid directional valve, thereby drive the piston upward movement, through the first check valve on the barrel, exhaust the air in the barrel of piston upper side, when the piston moves to the interior top of barrel, the extrusion piece on the piston touches the moving contact of travel switch (because the volume of barrel is greater than the volume of traction tube and balloon junction to gas transmission pipeline and barrel junction, therefore, when exhausting the air in the barrel of piston upside, the air flow channel of the traction pipe, the air outlet pipeline of the exhaust fan and the air conveying pipeline are filled with the air introduced from the high altitude at all times), the travel switch transmits the electric signal to the electromagnetic directional valve, so that the electromagnetic directional valve discharges the directional air from the first air outlet and directly enters the cylinder on the upper side of the piston from the second one-way valve, and the cylinder on the upper side of the piston exhausts the air, so that the air flow in the high altitude can be collected through the cylinder on the upper side of the piston. After first gas outlet exhaust gas enters into piston upside barrel, the piston slowly moves down, and the gas of piston downside is arranged through the first check valve of barrel bottom gradually to make all be full of the gas of introducing from the high altitude in the whole barrel, thereby realize atmospheric sampling. And after sampling is finished, closing the exhaust fan, and withdrawing the balloon through the traction tube. Compared with the prior art, when the high-altitude atmosphere is collected, the utility model only needs to put the balloon into the high altitude, and the balloon does not need to carry equipment in the whole floating process, so that the volume of the balloon can be reduced, and the manufacturing cost is reduced; more importantly, after the traction tube is blocked (or the balloon is damaged) under the action of external force, no additional injury is caused, and the use safety is ensured.

Drawings

Fig. 1 is a schematic view of an embodiment of the present invention, in which a piston is located at the lower end of a cylinder, and the cylinder above the piston is filled with air;

fig. 2 is a schematic view of an embodiment of the present invention, in which the piston is located at the middle position of the cylinder, the exhaust fan is working to input the air in the air into the cylinder below the piston, and the air in the cylinder above the piston is exhausted through the first check valve at the top of the cylinder;

fig. 3 is a schematic view showing a state in which the piston is located at the top position of the cylinder and the air in the cylinder on the upper side of the piston is exhausted;

fig. 4 is a schematic view of a state of an embodiment of the present invention, in which the atmosphere in the upper air enters the cylinder on the upper side of the piston from the first air outlet and drives the piston to move downward, and when the piston moves downward, the air in the cylinder on the lower side of the piston is discharged out of the cylinder through the first check valve on the bottom of the cylinder;

FIG. 5 is a schematic view of a portion of FIG. 4 at A;

FIG. 6 is a schematic enlarged view of a portion B of FIG. 4;

FIG. 7 is a schematic view of the connection between the hollow shaft and the intake pipe of the exhaust fan;

the labels in the figure are: 1. the device comprises a base, 101, a universal wheel, 102, a handrail, 2, a winding wheel, 201, a mounting rack, 202, an adjusting screw rod, 203, a locking nut, 204, a hollow rotating shaft, 2041, a piston head, 2042, a wear-resistant sealing ring, 205, a bearing seat, 3, a traction pipe, 301, an air flow channel, 302, a strapping rope, 4, a balloon, 5, an exhaust fan, 501, an air inlet pipe, 502, an air outlet pipe, 6, a cylinder body, 601, a piston, 602, an extrusion block, 603, a first one-way valve, 604, a second one-way valve, 605, a travel switch, 6051, a movable contact, 606, a mounting groove, 7, an electromagnetic reversing valve, 701, an air inlet, 702, a first air outlet, 703, a second air outlet, 704 and an air.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it should be understood that the terms "one end", "the other end", "both ends", "between", "middle part", "lower part", "upper end", "lower end", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

With reference to the attached drawings, the atmospheric sampling device of the utility model comprises a base 1, wherein a universal wheel 101 and a handrail 102 are mounted on the base 1, the movement and the transportation of the base are facilitated through the universal wheel and the handrail 102, and a winding wheel 2 capable of rotating is arranged on the base 1; the base 1 may be placed on the ground or on the top of a building, etc. In some embodiments, the base 1 is provided with a mounting rack 201, the winding wheel 2 is mounted on the mounting rack 201, the mounting rack 201 is provided with an adjusting screw 202, the adjusting screw 202 on the upper side of the mounting rack 201 and the adjusting screw 202 on the lower side of the mounting rack 201 are both provided with a lock nut 203, and the distance between the winding wheel 2 and the base 1 can be adjusted through the lock nut 203 and the adjusting screw 202, so that the length of the traction tube 3 wound on the winding wheel 2 can be adjusted according to the use condition. The winding wheel 2 is wound with a traction tube 3, the traction tube 3 is connected with a balloon 4, an air flow channel 301 is formed in the middle of the traction tube 3, the balloon 4 is bound on the traction tube 3 through a binding rope 302, a gap for air to flow through is formed between the balloon 4 and the air flow channel 301, namely, the air flow channel 301 is not blocked by the air flow 4, so that air can be conveniently obtained from high altitude through the air flow channel 301 of the traction tube 3, the air is sucked out from the air flow channel 301 of the traction tube 3 for collection and detection, one end of the traction tube 3 is fixedly connected with the balloon 4, the other end of the traction tube 3 is wound on the winding wheel 2 and then is communicated with an air inlet pipe 501 of an exhaust fan 5 installed on the base 1, an air outlet pipe of the exhaust fan 501 is communicated with a collection barrel 6 for containing air, and the sucked air is stored through the collection barrel 6, therefore, the detection is carried out through the detection device, and the detection and analysis of the atmosphere are realized.

In some embodiments, the collecting cylinder comprises a sealed cylinder body 6, a piston 601 which can slide in the cylinder body 6 and is mutually sealed with the cylinder body 6 is arranged in the cylinder body 6, the top and the bottom of the cylinder 6 are both provided with a first one-way valve 603 for discharging the gas in the cylinder 6 out of the cylinder 6, an air outlet pipe 502 of the exhaust fan 5 is communicated with an electromagnetic directional valve 7, the air outlet pipe 502 of the exhaust fan 5 is communicated with an air inlet 701 of the electromagnetic directional valve 7, the electromagnetic directional valve 7 is provided with a first air outlet 702 and a second air outlet 703, the top of the cylinder 6 is provided with a second one-way valve 604 for guiding air into the cylinder 6, the first air outlet 702 is communicated with the second one-way valve 604, the second air outlet 703 is communicated with an air transmission pipeline 704, the gas transmission pipeline 704 is communicated with the bottom of the cylinder 6 and can transmit gas into the cylinder 6.

In some embodiments, the cylinder 6 is provided with a through hole, the first check valve 603 and the second check valve 604 are mounted on an inner wall of the through hole, and the first check valve 603 and the second check valve 604 are hermetically connected with the through hole. The second air outlet 703 is just opposite to the through hole for installing the second check valve 604, so that the gas discharged from the second air outlet 703 can rapidly pass through the second check valve 604 and enter the cylinder 6, the distance between the second air outlet 703 and the cylinder 6 is reduced, the distance between the second air outlet and the cylinder is reduced as much as possible, and the influence of the existing air on atmospheric detection is reduced.

In some embodiments, the gas volume of the barrel 6 is greater than the sum of the volume of the gas flow channel 301 of the traction tube 3 and the volume of gas between the inlet pipe 501 of the suction fan 5 to the connection end of the gas delivery conduit 704 and the barrel 1. That is, when the piston 601 runs to the inner top of the cylinder 1, the cylinder 6 on the lower side of the piston 601 is filled with the atmosphere in the high altitude introduced through the traction tube 3, so that the air channels formed by the traction tube 3, the exhaust fan 5 and the electromagnetic directional valve 7 are filled with the atmosphere in the high altitude, and the air flow entering the cylinder 6 is the atmosphere in the high altitude when the first air outlet 702 exhausts.

In some embodiments, a travel switch 605 is installed on the inner top of the cylinder 6, the travel switch 605 is electrically connected with the electromagnetic directional valve, and a pressing block 602 for touching a movable contact 6051 of the travel switch 605 is installed on the upper surface of the piston 601. When the piston 601 runs to the inner top end of the cylinder, the pressing block 602 touches the movable contact 6051 of the travel switch 605, the travel switch 605 generates an electric signal and transmits the electric signal to the electromagnetic directional valve 7, and the electromagnetic directional valve 7 is enabled to perform direction change. The utility model discloses a travel switch and piston 601's cooperation can make piston 601's motion and solenoid directional valve form a linkage operation, and the solenoid directional valve of being convenient for commutates.

In some embodiments, the inner top of the cylinder 6 is provided with a mounting groove 606, the travel switch 605 is mounted in the mounting groove 606, and the movable contact 6051 of the travel switch 605 extends downward out of the inner top surface of the cylinder 6, so as to facilitate the engagement of the movable contact with the press block 602.

In some embodiments, the size of the pressing block 602 is smaller than the size of the installation groove 606, and the pressing block 602 can be received in the installation groove 606, thereby ensuring that the piston 601 can contact the inner top surface of the cylinder 1, and thus exhausting air in the cylinder 1 on the upper side of the piston 601.

In some embodiments, a hollow rotating shaft 204 with a cavity is provided in the middle of the winding wheel 2, and both ends of the hollow rotating shaft 204 are mounted on the base 1 through bearing seats 205; when the mounting frame 201 is mounted on the base, two ends of the hollow rotating shaft 204 are mounted on the mounting frame 201 through the bearing seat 205, the end portion of the traction pipe 3 wound on the winding wheel 2 is communicated with the cavity of the hollow rotating shaft 204, a sealing cover is arranged at one end of the hollow rotating shaft 204, a piston head 2041 is sleeved on the periphery of the other end of the hollow rotating shaft 204, and the piston head 2041 extends into an air inlet pipe 501 of the exhaust fan 5 and is sealed with the air inlet pipe 501.

In some embodiments, a plurality of wear-resistant sealing rings 2042 are disposed on the periphery of the piston head 2041 and/or the inner wall of the air inlet pipe 501 of the exhaust fan 5, the hollow rotating shaft 204 and the air inlet pipe 501 are hermetically connected through the wear-resistant sealing rings 2042, and the hollow rotating shaft 204 does not affect the air inlet pipe 501 during rotation.

In some embodiments, a forward and reverse rotation motor for driving the hollow rotating shaft 204 to rotate is installed on the base 1 or the mounting rack 201, and the rotation of the winding wheel 2 is realized through the forward and reverse rotation motor.

The utility model discloses an atmosphere sampling device is in the use, at first through the traction tube on the release rolling wheel, make the balloon rise to the assigned height, then the air exhauster begins work, introduce the air current in the high air into the intake pipe of air exhauster through the air flow channel of traction tube, then enter into the solenoid directional valve through the outlet duct of air exhauster, and enter into the barrel through the second gas outlet and the gas transmission pipeline of solenoid directional valve, thereby drive the piston upward movement, through the first check valve on the barrel, exhaust the air in the barrel of piston upper side, when the piston moves to the interior top of barrel, the extrusion piece on the piston touches the moving contact of travel switch (because the volume of barrel is greater than the volume of traction tube and balloon junction to gas transmission pipeline and barrel junction, therefore, when exhausting the air in the barrel of piston upside, the air flow channel of the traction pipe, the air outlet pipeline of the exhaust fan and the air conveying pipeline are filled with the air introduced from the high altitude at all times), the travel switch transmits the electric signal to the electromagnetic directional valve, so that the electromagnetic directional valve discharges the directional air from the first air outlet and directly enters the cylinder on the upper side of the piston from the second one-way valve, and the cylinder on the upper side of the piston exhausts the air, so that the air flow in the high altitude can be collected through the cylinder on the upper side of the piston. After first gas outlet exhaust gas enters into piston upside barrel, the piston slowly moves down, and the gas of piston downside is arranged through the first check valve of barrel bottom gradually to make all be full of the gas of introducing from the high altitude in the whole barrel, thereby realize atmospheric sampling. And after sampling is finished, closing the exhaust fan, and withdrawing the balloon through the traction tube. Compared with the prior art, when the high-altitude atmosphere is collected, the utility model only needs to put the balloon into the high altitude, and the balloon does not need to carry equipment in the whole floating process, so that the volume of the balloon can be reduced, and the manufacturing cost is reduced; more importantly, after the traction tube is blocked (or the balloon is damaged) under the action of external force, no additional injury is caused, and the use safety is ensured.

In some embodiments, the traction tube of the present invention may be made of polyethylene, which has the characteristics of light weight, flexibility and hardness.

The embodiment of the present invention is the above. The foregoing is the preferred embodiments of the present invention, and if the preferred embodiments in the preferred embodiments are not obviously contradictory or are based on a certain preferred embodiment, the preferred embodiments can be combined and used by any superposition, and the specific parameters in the embodiments and examples are only for the purpose of clearly expressing the utility model verification process of the utility model, and are not used for limiting the patent protection scope of the present invention, which is still based on the claims, and all the equivalent structural changes made by the contents of the specification and the drawings should be included in the protection scope of the present invention.

Claims (7)

1. An atmosphere sampling device comprises a base (1), wherein a winding wheel (2) capable of rotating is arranged on the base (1), a traction tube (3) is wound on the winding wheel (2), the traction tube (3) is connected with a balloon (4), it is characterized in that an airflow channel (301) is formed in the middle of the traction pipe (3), the balloon (4) is bound on the traction tube (3) through a binding rope (302) and a gap for air to flow through is formed between the balloon (4) and the air flow channel (301), one end of the traction tube (3) is fixedly connected with the balloon (4), the other end of the traction tube (3) is wound on the winding wheel (2) and is communicated with an air inlet pipe (501) of an exhaust fan (5) arranged on the base (1), an air outlet pipe (502) of the exhaust fan (5) is communicated with a collecting cylinder for containing air.

2. The atmosphere sampling device according to claim 1, wherein the collecting cylinder comprises a sealed cylinder body (6), a piston (601) capable of sliding in the cylinder body (6) and mutually sealing with the cylinder body (6) is arranged in the cylinder body (6), a first one-way valve (603) for discharging gas in the cylinder body (6) out of the cylinder body (6) is arranged at the top and the bottom of the cylinder body (6), an air outlet pipe (502) of the exhaust fan (5) is communicated with an electromagnetic directional valve (7), the air outlet pipe (502) is communicated with an air inlet (701) of the electromagnetic directional valve (7), the electromagnetic directional valve (7) is provided with a first air outlet (702) and a second air outlet (703), a second one-way valve (604) for guiding gas into the cylinder body (6) is arranged at the top of the cylinder body (6), and the first air outlet (702) and the second one-way valve (604) are mutually corresponding and communicated, the second air outlet (703) is communicated with an air transmission pipeline (704), and the air transmission pipeline (704) is communicated with the bottom of the cylinder (6) and can transmit air into the cylinder (6).

3. The atmospheric sampling device according to claim 2, characterized in that the gas volume of the cylinder (6) is greater than the sum of the volume of the gas flow channel (301) of the traction tube (3) and the gas volume between the connection end of the gas inlet tube (501) to the gas delivery conduit (704) and the cylinder (6) of the exhaust fan (5).

4. The atmospheric sampling device according to claim 2, characterized in that a travel switch (605) is mounted on the inner top of the cylinder (6), the travel switch (605) is electrically connected with the electromagnetic directional valve (7), and a pressing block (602) for contacting with a movable contact (6051) of the travel switch (605) is mounted on the upper surface of the piston (601).

5. The atmosphere sampling device according to claim 4, characterized in that the inner top of the cylinder (6) is provided with a mounting groove (606), the travel switch (605) is mounted in the mounting groove (606), and the movable contact (6051) of the travel switch (605) extends downwards out of the inner top surface of the cylinder (6).

6. The atmosphere sampling device according to any one of claims 1 to 5, characterized in that a hollow rotating shaft (204) with a cavity is provided in the middle of the winding wheel (2), both ends of the hollow rotating shaft (204) are mounted on the base (1) through bearing seats (205), the end of the traction tube (3) wound on the winding wheel (2) is communicated with the cavity of the hollow rotating shaft (204), a sealing cover is provided at one end of the hollow rotating shaft (204), a piston head (2041) is sleeved on the periphery of the other end of the hollow rotating shaft (204), and the piston head (2041) extends into the air inlet tube (501) of the exhaust fan (5) and is sealed with the air inlet tube (501).

7. The atmospheric sampling device of claim 6, characterized in that a plurality of wear-resistant sealing rings (2042) are provided on the periphery of the piston head (2041) and/or on the inner wall of the intake pipe (501) of the suction fan (5).

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