Air sampler

Abstract

The utility model discloses an air sampler. The air sampler comprises a sampling piece, an air exhaust mechanism, a swinging mechanism and a first fixing piece, the swing mechanism is arranged on the first fixing piece, the sampling piece is movably connected with the swing mechanism, and an air inlet of the air exhaust mechanism is correspondingly connected with the sampling piece; the sampling piece can be quickly disassembled and assembled only by controlling the swing of the swing mechanism in the disassembly and assembly process, on-site guidance of professionals is not needed, and the sampling piece is convenient to assemble and disassemble, time-saving and labor-saving.

Description

TECHNICAL FIELD

[0001] The utility model relates to air sampling technical field especially relates to an air sampler. BACKGROUND

[0002] Air sampler is a kind of equipment specially used for collecting microorganism such as bacteria, virus in air, and air in closed space is sampled and detected using air sampler, can monitor the air quality of closed space such as large-scale shopping mall, breeding farm, and it is very necessary for guaranteeing the life health safety of people and animals.

[0003] At present, we need to clean sampling piece after air sampling is completed, however, existing air sampler is inconvenient to disassemble and clean, and pollution problem is prone to occur, therefore, it is very necessary to design a kind of air sampler convenient to disassemble. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of air samplers, to solve the problems existing in the prior art described above, i.e.

[0005] Therefore, the utility model adopts the following technical solutions:

[0006] An air sampler, including sampling piece, air extraction mechanism, swing mechanism and first fixed part;The swing mechanism is arranged on the first fixed part, and the sampling piece and the swing mechanism are movably connected, and the air extraction mechanism air inlet is connected with the sampling piece.

[0007] Preferably, the swing mechanism includes first positioning pin, second positioning pin, second fixed part, swing wedge, swing piece and spring;The first positioning pin is fixedly arranged on the second fixed part, and the second fixed part is fixedly arranged on the first fixed part;One end of the swing wedge is rotatably connected with the first positioning pin, and the other end of the swing wedge is fixedly provided with the second positioning pin;Swing groove is arranged on the swing piece, and the swing groove passes through the second positioning pin;One end of the spring is fixedly arranged on the first fixed part, and the other end of the spring is fixedly arranged on the swing piece.

[0008] Preferably, the swing piece is provided with an extension protrusion and a knob, and the second fixed part is provided with a first limiting groove and a second limiting groove matched with the extension protrusion and the knob.

[0009] Preferably, the air extraction mechanism and the swing piece are further provided with a first sealing element, and the sampling piece is provided with a second sealing element.

[0010] Preferably, it further includes an adapter, and the adapter is arranged between the swing piece and the first sealing element.

[0011] Preferably, the air exhaust guide is fixedly arranged on the first fixing member, and the air outlet of the air suction mechanism is communicated with the air exhaust guide.

[0012] Preferably, the positioning member is arranged on the first fixing member, and the positioning member is arranged corresponding to the air inlet of the sampling member.

[0013] Preferably, the telescopic support is connected with the first fixing member.

[0014] Preferably, the shell is arranged on the first fixing member, and the swing mechanism is arranged in the shell.

[0015] Preferably, the external control unit and the power supply module are arranged in the shell.

[0016] Compared with the prior art, the air sampler has the following beneficial effects:

[0017] The air sampler provided by the utility model only needs the sampling member, the air suction mechanism, the swing mechanism and the first fixing member, and can quickly complete the dismounting and mounting of the sampling member, and only needs to control the swing direction of the swing mechanism in the dismounting and mounting process, without the on-site guidance of professional personnel, so that the mounting and dismounting of the sampling member are convenient, time-saving and labor-saving. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings.

[0019] Figure 1 The air sampler structure schematic view provided by the utility model is shown in the figure.

[0020] Figure 2 The air sampler structure schematic view for hiding the telescopic support is shown in the figure.

[0021] Figure 3 The sampling member structure schematic view is shown in the figure.

[0022] Figure 4 The air sampler structure schematic view for hiding the telescopic support is shown in the figure. Figure 2 The air sampler structure schematic view for hiding the telescopic support is shown in the figure.

[0023] Figure 5 The air sampler structure schematic view for hiding the telescopic support is shown in the figure. Figure 2 The air sampler structure schematic view for hiding the telescopic support is shown in the figure.

[0024] Figure 6 The air sampler structure schematic view for hiding the telescopic support is shown in the figure.

[0025] Figure 7 The exploded view of the air sampler with the hidden shell and the sampling piece;

[0026] Figure 8 The structural schematic diagram of the air sampler with the hidden shell;

[0027] Figure 9 The structural schematic diagram of the air sampler with the hidden shell, the telescopic support and the air extraction mechanism;

[0028] 1 is the sampling piece, 101 is the limiting part, 102 is the cylindrical part, 103 is the conical part, 104 is the air inlet, and 105 is the sampling tube;

[0029] 2 is the air extraction mechanism;

[0030] 3 is the first fixing piece, 301 is the hole, and 302 is the fixed handle;

[0031] 4 is the swing mechanism, 401 is the first positioning pin, 402 is the second positioning pin, 403 is the second fixing piece, 4031 is the first limiting groove, 4032 is the second limiting groove, 404 is the swing wedge, 405 is the swing piece, 4051 is the swing groove, 4052 is the external extension protrusion, 4053 is the pushing piece, and 406 is the spring;

[0032] 5 is the first sealing piece;

[0033] 6 is the second sealing piece;

[0034] 7 is the adapter;

[0035] 8 is the air exhaust guide piece;

[0036] 9 is the positioning piece;

[0037] 10 is the telescopic support;

[0038] 11 is the shell;

[0039] 12 is the external control unit;

[0040] 13 is the power supply module. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0042] The utility model discloses a kind of air samplers, to solve the problems existing in the prior art above, i.e.

[0043] To make the above purposes, features and advantages of the utility model more obvious and easy to understand, the utility model is further explained in detail below with the drawings and specific embodiments.

[0044] Embodiment one

[0045] Please refer to Figures 1-9 An air sampler, including sampling piece 1, suction mechanism 2, swing mechanism 4 and first fixed part 3;Swing mechanism 4 is arranged on first fixed part 3, sampling piece 1 and swing mechanism 4 are movably connected, suction mechanism 2 air inlet and sampling piece 1 are correspondingly connected;

[0046] In the embodiment, specifically, sampling piece 1 is provided with limiting portion 101, and first fixed part 3 is provided with hole 301 matched with the shape of the top surface of sampling piece 1;When installing, the top surface of sampling piece 1 is passed through hole 301 until limiting portion 101 abuts against first fixed part 3, and sampling piece 1 can be easily fixed on first fixed part 3 by controlling swing mechanism 4 to swing, and the air inlet of suction mechanism 2 is communicated with sampling piece 1;Similarly, after sampling work is completed, sampling piece 1 can be quickly disassembled from first fixed part 3 by controlling swing mechanism 4 to swing with hand holding sampling piece 1;As can be seen, the air sampler provided by the utility model only needs sampling piece 1, suction mechanism 2, swing mechanism 4 and first fixed part 3 to quickly complete the disassembly and installation work of sampling piece 1, and the disassembly process only needs to control the swing direction of swing mechanism 4, without the on-site guidance of professional personnel, so that the installation and disassembly of sampling piece 1 are convenient, time-saving and labor-saving.

[0047] In addition, sampling piece 1 includes cylindrical portion 102, cone portion 103, air inlet 104 and sampling tube 105, sampling tube 105 is threadedly connected with the bottom of cone portion 103, air inlet 104 is tangent to the inner wall of cylindrical portion 102, sampling liquid is stored in sampling tube 105, and suction mechanism 2 can be a vortex fan or a centrifugal fan, in order to simplify the structure, the vortex fan is preferred as suction mechanism 2 in the embodiment.

[0048] The working principle of the air sampler provided by the embodiment is as follows: the air inlet 104 is tangent to the inner wall of the cylindrical part 102, the suction mechanism 2 draws negative pressure on the sampling part 1, external air enters the cylindrical part 102 tangentially from the air inlet 104, after the air enters the cylindrical part 102, the air encounters the inner wall of the cylindrical part 102 and turns, and the air repeatedly turns around the inner wall of the cylindrical part 102, forming a spiral air flow, when the air flow reaches the conical part 103, because the radius of the inner wall of the conical part 103 gradually decreases, the air flow rate increases, the centrifugal force gradually increases, and the bacteria particles in the air are thrown to the inner wall of the conical part 103 under the action of the increasing centrifugal force, the bacteria particles fall into the sampling tube 105 under the action of gravity and enter the sampling liquid, and the air flow is gradually drawn upward from the top surface of the cylindrical part 102 by the negative pressure provided by the suction mechanism 2 after reaching the sampling tube 105, so as to maintain the air pressure balance inside and outside the sampling part 1.

[0049] In some embodiments, referring to Figures 6-9 , in order to simplify the structure, the swing mechanism 4 includes a first positioning pin 401, a second positioning pin 402, a second fixed part 403, a swing wedge 404, a swing part 405, and a spring 406; the first positioning pin 401 is fixedly arranged on the second fixed part 403, and the second fixed part 403 is fixedly arranged on the first fixed part 3; one end of the swing wedge 404 is rotatably connected with the first positioning pin 401, and the other end of the swing wedge 404 is fixedly provided with the second positioning pin 402, and the swing wedge 404 and the second positioning pin 402 are fixedly connected as a whole and can rotate relative to the first positioning pin 401; the swing part 405 is provided with a swing groove 4051, the swing groove 4051 passes through the second positioning pin 402, the swing part 405 is movably connected with the swing wedge 404, and the width of the swing groove 4051 corresponds to the diameter of the second positioning pin 402; one end of the spring 406 is fixedly arranged on the first fixed part 3, and the other end of the spring 406 is fixedly arranged on the swing part 405.

[0050] When the sampling part 1 is installed, the swing wedge 404 clamps the sampling part 1, in order to better fit the sampling part 1 and the swing wedge 404, the clamping part of the swing wedge 404 in contact with the sampling part 1 is an arc surface, the outer diameter is an arc surface with the same center as the inner diameter, and the arc surface is concentric with the hole 301 and the cylindrical part 102 of the sampling part 1; in the initial state, the spring 406 is stretched and elastically deformed.

[0051] In this embodiment, the dismounting steps of the sampling member 1 are as follows: holding the sampling member 1, driving the swing member 405 to rotate by external force, stretching the spring 406 to further elastically deform, synchronously rotating the swing groove 4051 with the swing member 405, at the same time, driving the second positioning pin 402 and the swing wedge 404 to relatively slide by the inner wall of the swing groove 4051, rotating the swing wedge 404 relative to the first positioning pin 401, making the clamping part of the swing wedge 404 away from the sampling member 1, moving the sampling member 1 away from the first fixing member 3, removing the external force, restoring the deformation of the spring 406 to drive the swing member 405 to rotate to reset, rotating the swing member 405 to drive the swing wedge 404 to reset, and completing the dismounting of the sampling member 1.

[0052] In this embodiment, the mounting steps of the sampling member 1 are as follows: holding the sampling member 1, driving the swing member 405 to rotate by external force, stretching the spring 406 to further elastically deform, synchronously rotating the swing groove 4051 with the swing member 405, at the same time, driving the second positioning pin 402 and the swing wedge 404 to relatively slide by the inner wall of the swing groove 4051, rotating the swing wedge 404 relative to the first positioning pin 401, making the clamping part of the swing wedge 404 away from the sampling member 1, moving the sampling member 1 away from the first fixing member 3, removing the external force, restoring the deformation of the spring 406 to drive the swing member 405 to rotate to reset, rotating the swing member 405 to drive the swing wedge 404 to reset, and completing the dismounting of the sampling member 1.

[0053] In some embodiments, please refer to Figure 6 and Figure 7 , in order to simplify the structure and facilitate the rotation control of the swing member 405, the swing member 405 is provided with an extension protrusion 4052 and a pushing member 4053, and the second fixing member 403 is provided with a first limiting groove 4031 and a second limiting groove 4032 matched with the extension protrusion 4052 and the pushing member 4053.

[0054] The extension protrusion 4052 rotates in the first limiting groove 4031, the poking member 4053 rotates in the second limiting groove 4032, and the extension protrusion 4052 and the first limiting groove 4031 and the poking member 4053 and the second limiting groove 4032 jointly limit the rotation of the poking member 4053; in order to facilitate the rotation of the poking member 4053, the first fixing member 3 is further provided with a fixed handle 302, and specifically, when the sampling member 1 needs to be installed or disassembled, the left hand pinches the poking member 4053 and the fixed handle 302, overcomes the pulling force of the spring 406, makes the swing groove 4051 and the matched swing wedge 404 slide relative to the second positioning pin 402, drives the swing wedge 404 to swing relative to the first positioning pin 401 in the radial direction, so that the swing wedge 404 swings in the radial direction, and the swing wedge 404 is away from the hole 301. The sampling member 1 can be quickly installed or disassembled.

[0055] In some embodiments, please refer to Figure 3 、 Figure 6 In order to ensure that the air extraction mechanism 2 extracts air in the sampling member 1 to form strong negative pressure in the sampling member 1, so that the entering air forms a vortex, and improves the sampling efficiency; the air extraction mechanism 2 and the swinging member 405 are further provided with a first sealing member 5, and the sampling member 1 is provided with a second sealing member 6, and the first sealing member 5 and the second sealing member 6 are both of elastic material, such as rubber, silica gel and the like.

[0056] In some embodiments, please refer to Figure 7 In order to simplify the structure and facilitate installation, further comprising an adapter 7, the adapter 7 is arranged between the swinging member 405 and the first sealing member 5.

[0057] In some embodiments, please refer to Figure 8 Further comprising an air exhaust guide 8, the air exhaust guide 8 is used for guiding the excess air in the sampling member 1 to be discharged to the outside, and the outlet of the air exhaust guide 8 is arranged opposite to the air inlet 104 of the sampling member 1, so that the outlet of the air exhaust guide 8 is away from the air inlet 104 of the sampling member 1, which ensures that the air entering the sampling member 1 from the air inlet 104 of the sampling member 1 is the first collection, avoids the air entering from the air inlet 104 of the sampling member 1 being the air discharged from the sampling member 1, and improves the sampling efficiency; the air exhaust guide 8 is fixedly arranged on the first fixing member 3, and the air inlet 104 of the air extraction mechanism 2 communicates with the air exhaust guide 8.

[0058] In some embodiments, please refer to Figure 5 、 Figure 8 In order to make the installation of the sampling member 1 more convenient and clear, further comprising a positioning member 9, the positioning member 9 is arranged on the first fixing member 3, and the positioning member 9 is arranged corresponding to the air inlet 104 of the sampling member 1; when the sampling member 1 is installed, the air inlet 104 is clamped at the positioning member 9, and at this time, the outlet of the air exhaust guide 8 is opposite to the direction of the air inlet 104 of the sampling member 1.

[0059] In some embodiments, referring to Figure 1 , further comprising telescopic support 10, telescopic support 10 is used for adjusting the height of sampling member 1 from the ground, by adjusting the height of telescopic support 10, the air corresponding to the height from the ground can be collected, telescopic support 10 is connected with first fixed part 3.

[0060] In some embodiments, referring to Figures 1-9 , in order to protect suction mechanism 2, sampling member 1, swing mechanism 4, further comprising shell 11, shell 11 is arranged on first fixed part 3, swing mechanism 4 is arranged in shell 11.

[0061] In some embodiments, referring to Figure 2 , Figure 6 , Figure 7 , Figure 8 , in order to facilitate control and portable use, further comprising external control unit 12 and power supply module 13, external control unit 12 is arranged in shell 11, power supply module 13 is fixedly arranged on first fixed part 3, wherein external control unit 12 is button, power supply module 13 is lithium battery.

[0062] The principle and implementation mode of the specific examples are described in the utility model, and the above embodiment is only used for helping to understand the method and core idea of the utility model; meanwhile, for the general skilled in the art, according to the idea of the utility model, there will be changes in specific implementation mode and application range. In conclusion, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. An air sampler characterized by: Including sampling piece, air extraction mechanism, swing mechanism and first fixed part;The swing mechanism is arranged on the first fixed part, the sampling piece and the swing mechanism are movably connected, and the air extraction mechanism air inlet is connected with the sampling piece.

2. The air sampler of claim 1, wherein: The swing mechanism includes a first positioning pin, a second positioning pin, a second fixed part, a swing wedge, a swing piece and a spring;The first positioning pin is fixedly arranged on the second fixed part, and the second fixed part is fixedly arranged on the first fixed part;One end of the swing wedge is rotatably connected with the first positioning pin, and the other end of the swing wedge is fixedly provided with the second positioning pin;The swing piece is provided with a swing groove, and the swing groove passes through the second positioning pin;One end of the spring is fixedly arranged on the first fixed part, and the other end of the spring is fixedly arranged on the swing piece.

3. The air sampler of claim 2, wherein: The swing piece is provided with an extension bump and a knob, and the second fixed part is provided with a first limiting groove and a second limiting groove matched with the extension bump and the knob.

4. The air sampler of claim 3, wherein: The first sealing piece is arranged between the air extraction mechanism and the swing piece, and the second sealing piece is arranged on the sampling piece.

5. The air sampler of claim 4, wherein: It also includes an adapter, which is arranged between the swing piece and the first sealing piece.

6. The air sampler of claim 1, wherein: It also includes an exhaust guide, which is fixedly arranged on the first fixed part, and the air outlet of the air extraction mechanism communicates with the exhaust guide.

7. The air sampler of claim 6, wherein: It also includes a positioning piece, which is arranged on the first fixed part and corresponds to the air inlet of the sampling piece.

8. The air sampler of claim 1, wherein: It also includes a telescopic support connected with the first fixed part.

9. The air sampler of claim 1, wherein: It also includes a shell arranged on the first fixed part, and the swing mechanism is arranged in the shell.

10. The air sampler of claim 9, wherein: It also includes an external control unit and a power supply module, which are arranged in the shell.

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