CN215339133U - Portable air collection system - Google Patents

Abstract

The utility model discloses a portable air collecting device, which comprises a shell, an extracting mechanism and an exhaust mechanism, wherein the extracting mechanism is composed of a sealing shell, a gear, a thread groove, a reciprocating screw rod, a motor and a sealing piston, the surface of the shell is provided with the sealing shell, the inner wall of the sealing shell is matched and rotatably connected with the gear, the surface of the gear is matched and meshed with the thread groove, the surface of the thread groove is matched and threadedly connected with the reciprocating screw rod, one side of the surface of the reciprocating screw rod is matched and rotatably connected with the sealing piston, the surface of the sealing shell is provided with the motor, and the exhaust mechanism is composed of an air suction hole, a rotating shaft, a blocking block, a volute spring and a sealing plate.

Description

Portable air collection system

Technical Field

The utility model relates to the technical field of sample collection, in particular to a portable air collection device.

Background

Need gather the regional air of fixed point in the environmental protection field, adopt air exhaust device to extract external gas usually when gathering to store in the inspiratory solution, at the in-process of extraction, the inspiratory solution gets into in the air exhaust device very easily, thereby causes the damage to the getter device.

Patent number CN211740788U discloses an empty gas detection surveys collection system, and this utility model relates to a detect collection equipment technical field, more specifically the empty gas detection surveys collection system that says so, empty gas detection surveys collection system and can reciprocate to sway collection air aloft. The collection personnel use the right hand to hold handheld handle, open miniature hydro-cylinder, miniature hydro-cylinder drives the second grade telescopic link and slides in the one-level telescopic pole that rises, the one-level telescopic pole that rises slides in handheld handle, realize increasing length, open the swing motor, the swing motor drives the swing gear and rotates, the swing gear drives eccentric actuating lever and slides on swaing the draw runner, drive the swing lever and carry out reciprocating swing, the swing lever drives the arc and places the board swing, the board is placed in the arc and is rotated certain angle after the regulation fixed plate, screw up the bolt and can place the board clamp with the arc and tightly fix on the regulation fixed plate, form corresponding angle.

This empty gas detection surveys collection system has following drawback: when using foretell empty gas detection to detect collection system, its overall structure is great, inconvenient operation to gaseous storage is comparatively troublesome. To this end, we propose a portable air collection device.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a portable air collection device which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a portable air collecting device comprises a shell, an extracting mechanism and an exhaust mechanism, wherein the extracting mechanism comprises a sealing shell, a gear, a thread groove, a reciprocating screw rod, a motor and a sealing piston, the surface of the shell is provided with the sealing shell, the inner wall of the sealing shell is matched and rotatably connected with the gear, the surface of the gear is matched and meshed with the thread groove, the surface of the thread groove is matched and rotatably connected with the reciprocating screw rod, one side of the surface of the reciprocating screw rod is matched and rotatably connected with the sealing piston, the surface of the sealing shell is provided with the motor, the exhaust mechanism comprises an air suction hole, a rotating shaft, a blocking block, a volute spring and a sealing plate, the surface of the sealing shell is provided with a plurality of air suction holes, the surface of the air suction hole is provided with the rotating shaft, the surface of the rotating shaft is provided with the blocking block, and the volute spring is arranged on the inner wall of the sealing shell, and a sealing plate is arranged on one side of the surface of the volute spiral spring.

The connecting mechanism is composed of a thread block, an inclined plane, an exhaust port and a rubber pad; through coupling mechanism, let the whole can be more convenient link to each other with storage device.

Further, a gas flowmeter is mounted on the surface of the sealing shell, an exhaust port is mounted on the surface of the gas flowmeter, an inclined plane is mounted on the surface of the exhaust port, a thread block is connected to the surface of the inclined plane in a matched threaded manner, and a rubber pad is mounted on one side of the surface of the inclined plane; the test tube mouth that will be equipped with the gas-absorbing liquid aims at the gas vent and upwards inserts, through rotating the screw block, because whole inner wall is the inclined plane form during its design of screw block, at this moment the profile will produce the extrusion to the inclined plane, forces it to take place deformation inwards, and at this moment the rubber pad on inclined plane surface can be firmly the laminating on the test tube surface, forms fixed knot to it to there is certain leakproofness.

Furthermore, a controller is arranged on the surface of the shell, and the signal output end of the gas flowmeter is connected with the signal input end of the controller; and the detection data of the gas flowmeter is transmitted to the controller in time, so that the controller can make the next reaction.

Further, the power output end of the motor is welded on the surface of the gear; the gear is driven to rotate by the motor.

Compared with the prior art, the utility model has the following beneficial effects: the external power supply is switched on, a test tube port filled with gas absorption liquid is aligned with an exhaust port and inserted upwards, the thread block is rotated, the whole inner wall is in an inclined plane shape when the thread block is designed, at the moment, the outline can extrude the inclined plane to force the inclined plane to deform inwards, at the moment, the rubber pad on the surface of the inclined plane can be firmly attached to the surface of the test tube to form a fixed structure for the test tube, the rubber pad has certain sealing performance, the sampling amount is adjusted through the controller, the motor is started to drive the gear to rotate, so that the thread groove is driven to rotate through the gear in a meshing structure, the reciprocating screw rod on the surface of the thread groove can be driven to move when the thread groove rotates, the reciprocating screw rod is a form of a three-dimensional cam pair and is represented by two thread grooves with the same thread pitch and opposite rotation directions, so that the reciprocating screw rod can drive the sealing piston to move back and forth, and back, and forth negative pressure can be generated in the process of backward movement, at this moment will block piece inward movement, just so the suction hole has been exposed, at this moment can follow the external air extraction, when sealing piston moves forward, can tightly laminate the block piece at the suction hole surface and form seal structure under atmospheric pressure's effect, atmospheric pressure can push the closing plate open downwards at this moment, thereby discharge gas, so gas will be stored in getting into the test tube through gas flowmeter, the effectual inspiratory liquid that has avoided of integral operation gets into the extraction mechanism, and the damage that constructs the air extractor, when gas flowmeter feedback data is the same with controller data, thereby automatic disconnection motor stops the extraction, this device operation is comparatively convenient, need not external more pipeline, and there is certain protective capacities, thereby increase holistic life.

Drawings

Fig. 1 is a schematic view of the overall structure of a portable air collection device according to the present invention.

Fig. 2 is a schematic structural diagram of a connection mechanism of a portable air collection device according to the present invention.

Fig. 3 is a schematic structural diagram of an extraction mechanism and an exhaust mechanism of a portable air collection device according to the present invention.

In the figure: 1. a housing; 2. a drawing mechanism; 201. sealing the shell; 202. a gear; 203. a thread groove; 204. a reciprocating screw rod; 205. a motor; 206. a sealing piston; 3. an exhaust mechanism; 301. a suction hole; 302. a rotating shaft; 303. a blocking block; 304. a volute spiral spring; 305. a sealing plate; 4. a gas flow meter; 5. a connecting mechanism; 501. a thread block; 502. a bevel; 503. an exhaust port; 504. a rubber pad; 6. and a controller.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

As shown in fig. 1-3, a portable air collection device, which comprises a housing 1, and further comprises an extraction mechanism 2 and an exhaust mechanism 3, wherein the extraction mechanism 2 specifically comprises a sealing shell 201, a gear 202, a thread groove 203, a reciprocating screw 204, a motor 205 and a sealing piston 206, the surface of the housing 1 is provided with the sealing shell 201, the inner wall of the sealing shell 201 is connected with the gear 202 in a matching and rotating manner, the surface of the gear 202 is connected with the thread groove 203 in a matching and meshing manner, the surface of the thread groove 203 is connected with the reciprocating screw 204 in a matching and threaded manner, one side of the surface of the reciprocating screw 204 is connected with the sealing piston 206 in a matching and rotating manner, the surface of the sealing shell 201 is provided with the motor 205, the exhaust mechanism 3 specifically comprises an air suction hole 301, a rotating shaft 302, a blocking scroll 303, a spring 304 and a sealing plate 305, the surface of the sealing shell 201 is provided with a plurality of air suction holes 301, the surface of the suction hole 301 is provided with a rotating shaft 302, the surface of the rotating shaft 302 is provided with a stop block 303, the inner wall of the sealing shell 201 is provided with a scroll spring 304, and one side of the surface of the scroll spring 304 is provided with a sealing plate 305.

The connecting device comprises a connecting mechanism 5, wherein the connecting mechanism 5 is specifically composed of a thread block 501, an inclined plane 502, an air outlet 503 and a rubber pad 504; through coupling mechanism 5, make the whole can be more convenient link to each other with storage device.

The surface of the sealing shell 201 is provided with a gas flowmeter 4, the surface of the gas flowmeter 4 is provided with an exhaust port 503, the surface of the exhaust port 503 is provided with an inclined plane 502, the surface of the inclined plane 502 is in threaded connection with a threaded block 501 in a matching manner, and one side of the surface of the inclined plane 502 is provided with a rubber pad 504; the test tube port filled with the gas absorption liquid is aligned with the exhaust port 503 and inserted upwards, and by rotating the thread block 501, as the whole inner wall is in the shape of an inclined plane when the thread block 501 is designed, the inclined plane 502 is extruded by the contour at the moment, the thread block is forced to deform inwards, and the rubber pad 504 on the surface of the inclined plane 502 is firmly attached to the surface of the test tube to form a fixed structure and have certain sealing performance.

The surface of the shell 1 is provided with a controller 6, and the signal output end of the gas flowmeter 4 is connected with the signal input end of the controller 6; the detection data of the gas flowmeter 4 is transmitted to the controller 6 in time, so that the controller 6 can react next step.

Wherein, the power output end of the motor 205 is welded on the surface of the gear 202; the gear 202 is rotated by the motor 205.

It should be noted that, the utility model is a portable air collecting device, when working, the external power is connected, the test tube opening with the gas absorption liquid is aligned with the exhaust opening 503 and inserted upwards, through rotating the screw block 501, because the whole inner wall of the screw block 501 is designed to be in the shape of an inclined plane, at this time, the outline will extrude the inclined plane 502, forcing it to deform inwards, at this time, the rubber pad 504 on the surface of the inclined plane 502 will be firmly attached to the surface of the test tube, forming a fixed structure for it, and having a certain sealing performance, the controller 6 adjusts the sampling amount, and turns on the motor 205, the motor 205 drives the gear 202 to rotate, so as to drive the screw groove 203 to rotate through the gear 202 with a gear engagement structure, when the screw groove 203 rotates, the reciprocating screw 204 on the surface will be driven to move, the reciprocating screw 204 is a form of a stereo cam pair, which shows two screw grooves with the same pitch and opposite rotation directions, therefore, the reciprocating screw 204 can drive the sealing piston 206 to move back and forth, negative pressure is generated in the process of moving backwards, the blocking block 303 moves inwards, the air suction hole 301 is exposed, air can be extracted from the outside, when the sealing piston 206 moves forwards, the blocking block 303 is tightly attached to the surface of the air suction hole 301 under the action of air pressure to form a sealing structure, at the moment, the sealing plate 305 is pushed downwards by the air pressure to exhaust the air, the air enters a test tube through the gas flowmeter 4 to be stored, the whole operation effectively avoids the phenomenon that the air suction liquid enters the extraction mechanism 2 and damages to the air extraction mechanism 2, when the feedback data of the gas flowmeter 4 is the same as the data of the controller 6, the motor 205 is automatically switched off to stop extraction, the device is convenient to operate and free of more external pipelines, and has certain protection capability, thereby prolonging the service life of the whole body.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (5)

1. The utility model provides a portable air collection system, includes shell (1), its characterized in that still includes extraction mechanism (2) and exhaust mechanism (3), extraction mechanism (2) specifically comprises sealed shell (201), gear (202), thread groove (203), reciprocal lead screw (204), motor (205) and sealed piston (206), shell (1) surface mounting has sealed shell (201), sealed shell (201) inner wall cooperation is rotated and is connected with gear (202), gear (202) surface cooperation meshing is connected with thread groove (203), thread groove (203) surface cooperation threaded connection has reciprocal lead screw (204), reciprocal lead screw (204) surface one side cooperation rotation is connected with sealed piston (206), sealed shell (201) surface mounting has motor (205), exhaust mechanism (3) specifically by suction opening (301) Pivot (302), block piece (303), scroll spring (304) and closing plate (305) and constitute, suction hole (301) have been seted up on sealed shell (201) surface, and suction hole (301) have a plurality ofly, suction hole (301) surface mounting has pivot (302), pivot (302) surface mounting has and blocks piece (303), scroll spring (304) are installed to sealed shell (201) inner wall, closing plate (305) are installed to scroll spring (304) surface one side.

2. A portable air collection unit according to claim 1, further comprising: the connecting mechanism (5) is characterized by further comprising a connecting mechanism (5), wherein the connecting mechanism (5) is composed of a threaded block (501), an inclined plane (502), an air outlet (503) and a rubber pad (504).

3. A portable air collection unit according to claim 2, further comprising: seal shell (201) surface mounting has gas flowmeter (4), gas flowmeter (4) surface mounting has gas vent (503), gas vent (503) surface mounting has inclined plane (502), inclined plane (502) surface fit threaded connection has screw block (501), rubber pad (504) is installed to inclined plane (502) surface one side.

4. A portable air collection unit according to claim 3, further comprising: the surface of the shell (1) is provided with a controller (6), and the signal output end of the gas flowmeter (4) is connected with the signal input end of the controller (6).

5. A portable air collection unit according to claim 1, further comprising: the power output end of the motor (205) is welded on the surface of the gear (202).

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