Portable air sampler

Abstract

The utility model discloses a portable air sampler, relates to air sampling technical field, including shell and transmission component, the interior middle end of shell is provided with the accommodation groove, and the top and bottom both ends and right side of accommodation groove all are provided with sampling tube, the transmission component is provided the interior rear end of accommodation groove, and the transmission component is provided with the sampling tube. And the transmission assembly comprises a driving motor, a driving shaft, a transmission disc, a transmission rod, a first swing arm, a second swing arm and a third swing arm, the output end of the driving motor is connected with the driving shaft, the transmission disc is arranged outside the driving shaft, and the transmission rod is arranged on the surface of the transmission disc in a penetrating mode. According to the portable air sampler, due to the arrangement of the one-way exhaust valve, the sampling pipe can only be ventilated in a one-way mode, external air is sucked into the sampling pipe through negative pressure generated by piston movement and then exhausted into the sampling bag through the one-way exhaust valve, due to the arrangement of the anti-skid gasket at the hole, a user can conveniently hold the shell by hand to conduct sampling operation, and the user experience is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of air sampling, in particular to a portable air sampler. Background Technique

[0002] An air sampler is a common instrument used to collect the atmospheric environment and on-site gases in workshops. It is widely applicable to units such as atmospheric environment monitoring, health and epidemic prevention, labor protection, and scientific research, and can also be used in conjunction with relevant instruments. By analyzing the sampled gas, the degree of air pollution in the environment can be understood, and the actual situation of pollution can be provided to the relevant competent departments to take countermeasures, so as to ensure a healthy living environment for people.

[0003] For example, the utility model with the application number CN202220383914.0 discloses a portable air sampler. The filter component of this utility model is inserted into the dust-proof sleeve, which is convenient for disassembly, maintenance or replacement. The setting of the filter component enables the inhaled atmosphere to isolate large debris and dust, and finally, a bacteriostatic treatment is carried out by setting an activated carbon layer to improve the accuracy of measuring the oxygen content value. However, generally only the gas in one sampling bag can be collected at a time, and multiple operations are required when collecting multiple air samples, which is time-consuming and laborious.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and a portable air sampler is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a portable air sampler to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A portable air sampler, including a housing and a transmission component. A receiving groove is provided in the middle of the interior of the housing, and sampling pipes are provided at both the top and bottom ends and the right side of the receiving groove. The transmission component is arranged at the rear end of the interior of the receiving groove, and the transmission component includes a driving motor, a driving shaft, a transmission disc, a transmission rod, a swing arm one, a swing arm two, and a swing arm three. The output end of the driving motor is connected to the driving shaft, and a transmission disc is arranged outside the driving shaft. A transmission rod penetrates through the surface of the transmission disc, and a swing arm one, a swing arm two, and a swing arm three are sequentially connected to the outside of the transmission rod from front to back. One ends of the swing arm one, the swing arm two, and the swing arm three far away from the transmission rod are all connected to a support seat through a rotating shaft, and a piston is fixed at one end of the support seat far away from the transmission disc.

[0007] Further, the receiving groove and the sampling pipes are in communication with each other, and three sampling pipes are provided.

[0008] Further, the output end of the sampling pipe is connected to a sampling tube, and a one-way exhaust valve is arranged on the sampling tube.

[0009] Furthermore, a one-way air intake valve is provided at the input end of the sampling tube, and the sampling tube, sampling tube, one-way exhaust valve, one-way air intake valve, support seat and piston are provided in the same number.

[0010] Furthermore, the driving shaft and the transmission rod are parallel to each other, and the swing arm one, the swing arm two, and the swing arm three are distributed at equal intervals along the outside of the transmission rod.

[0011] Furthermore, the piston is arranged inside the sampling tube, and an external thread is arranged on the outside of one end of the sampling tube away from the sampling tube.

[0012] Furthermore, a hole is provided on the left side of the surface of the shell, and an anti-slip gasket is provided in the hole.

[0013] The utility model provides a portable air sampler, which has the following beneficial effects:

[0014] 1. In the present invention, since the piston is rotatably connected to the swing arm 1, the swing arm 2 and the swing arm 3 through the support seat, the operation of the drive motor drives the drive shaft, the transmission plate and the transmission rod to rotate, and the transmission rod drives the swing arm 1, the swing arm 2 and the swing arm 3 to swing, which can cause the three pistons to perform linear reciprocating motion in the corresponding sampling tubes. After several reciprocating motions, the outside air is sucked into the sampling tube and then injected into the sampling bag threadedly connected to the sampling tube.

[0015] 2. The setting of the one-way exhaust valve of the utility model allows the sampling tube to be ventilated in one direction only, so that the negative pressure generated by the piston movement is used to suck the outside air into the sampling tube, and then discharge it into the sampling bag through the one-way exhaust valve. The setting of the anti-slip gasket at the hole makes it convenient for users to hold the shell for sampling operations, thereby optimizing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the appearance structure of the shell of a portable air sampler of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the shell of a portable air sampler of the present utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of a transmission component of a portable air sampler of the present utility model.

[0019] In the figure: 1. Outer shell; 2. Accommodating groove; 3. Sampling tube; 4. Sampling pipe; 5. One-way exhaust valve; 6. One-way intake valve; 7. Transmission assembly; 701. Driving motor; 702. Driving shaft; 703. Transmission disc; 704. Transmission rod; 705. Swing arm one; 706. Swing arm two; 707. Swing arm three; 8. Support seat; 9. Piston; 10. Hole; 11. Anti-slip gasket. Detailed implementation mode

[0020] The following further describes the implementation mode of the present utility model in detail in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0021] As Figure 1 and Figure 3 shown, a portable air sampler includes an outer shell 1 and a transmission assembly 7. A middle part inside the outer shell 1 is provided with an accommodating groove 2, and sampling tubes 3 are arranged at the top, bottom and right ends of the accommodating groove 2. The transmission assembly 7 is arranged at the rear end inside the accommodating groove 2, and the transmission assembly 7 includes a driving motor 701, a driving shaft 702, a transmission disc 703, a transmission rod 704, a swing arm one 705, a swing arm two 706 and a swing arm three 707. The output end of the driving motor 701 is connected with the driving shaft 702, and a transmission disc 703 is arranged outside the driving shaft 702. A transmission rod 704 penetrates through the surface of the transmission disc 703, and a swing arm one 705, a swing arm two 706 and a swing arm three 707 are sequentially connected to the outside of the transmission rod 704 from front to back. One ends of the swing arm one 705, the swing arm two 706 and the swing arm three 707 far away from the transmission rod 704 are all connected with a support seat 8 through a rotating shaft, and a piston 9 is fixed at one end of the support seat 8 far away from the transmission disc 703. The driving shaft 702 and the transmission rod 704 are parallel to each other, and the swing arm one 705, the swing arm two 706 and the swing arm three 707 are equidistantly distributed along the outside of the transmission rod 704. The piston 9 is arranged inside the sampling tube 3, and an external thread is arranged outside one end of the sampling pipe 4 far away from the sampling tube 3.

[0022] The specific operation is as follows. Since the piston 9 is rotationally connected with the swing arm one 705, the swing arm two 706 and the swing arm three 707 through the support seat 8, when the driving motor 701 is operated to drive the driving shaft 702, the transmission disc 703 and the transmission rod 704 to rotate, the transmission rod 704 drives the swing arm one 705, the swing arm two 706 and the swing arm three 707 to swing, which can cause the three pistons 9 to perform linear reciprocating motions in the corresponding sampling tubes 3. After repeating several times, the air outside can be inhaled into the sampling tubes 3 and then injected into a sampling bag threadedly connected with the sampling pipe 4.

[0023] As Figure 1 and Figure 2As shown, the accommodation groove 2 and the sampling tube 3 are in communication with each other, and there are three sampling tubes 3. The output end of the sampling tube 3 is connected to a sampling tube 4, and a one-way exhaust valve 5 is provided on the sampling tube 4. A one-way intake valve 6 is provided at the input end of the sampling tube 3. The number of sampling tubes 3, sampling tubes 4, one-way exhaust valves 5, one-way intake valves 6, support seats 8 and pistons 9 is the same. A hole 10 is formed on the left side of the surface of the outer shell 1, and an anti-slip gasket 11 is provided in the hole 10.

[0024] The specific operation is as follows. The setting of the one-way exhaust valve 5 enables the sampling tube 4 to only conduct air unidirectionally, so as to utilize the negative pressure generated by the movement of the piston 9 to suck the outside air into the sampling tube 3 and then discharge it into the sampling bag through the one-way exhaust valve 5. The setting of the anti-slip gasket 11 at the hole 10 facilitates the user to hold the outer shell 1 for sampling operations and optimizes the user experience.

[0025] In summary, for this portable air sampler, when in use, first, the outer shell 1 has a rectangular structure and is relatively small in volume, which is convenient for the user to carry and use. When air samples need to be collected, three sampling bags with internal threads at the bag mouths are taken at one time, so that the sampling bags and the sampling tube 4 form a detachable fixed connection by relying on the threads;

[0026] When the sampling bag communicates with the sampling tube 3 through the sampling tube 4, one hand passes through the hole 10 on the left side of the outer shell 1, and the anti-slip gasket 11 is used to increase the friction force to prevent the outer shell 1 from slipping out of the hand. After holding the outer shell 1 tightly, the drive motor 701 is then operated. The drive motor 701 drives the drive shaft 702, the transmission disk 703, and the transmission rod 704 to rotate. The transmission rod 704 drives the swing arm one 705, the swing arm two 706, and the swing arm three 707 to swing. Since the piston 9 is rotationally connected to the swing arm one 705, the swing arm two 706, and the swing arm three 707 through the support seat 8, and the settings of the one-way exhaust valve 5 and the one-way intake valve 6 enable the input end of the sampling tube 3 and the sampling tube 4 to only conduct air unidirectionally, three pistons 9 can be caused to perform linear reciprocating motions in the corresponding sampling tubes 3. After reciprocating several times, the outside air is sucked into the sampling tube 3 and then injected into the sampling bag threadedly connected to the sampling tube 4;

[0027] In this way, three air samples can be collected simultaneously in one operation, saving the time spent on multiple operations and improving the collection efficiency, and having good application and promotion value.

[0028] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles of the present invention and its practical applications, and to enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

Claims

1. A portable air sampler, comprising a housing (1) and a transmission assembly (7), characterized in that, An accommodation groove (2) is provided in the middle of the interior of the housing (1), and sampling pipes (3) are provided at both the top and bottom ends and the right side of the accommodation groove (2). The transmission assembly (7) is arranged at the rear end of the interior of the accommodation groove (2), and the transmission assembly (7) includes a driving motor (701), a driving shaft (702), a transmission disc (703), a transmission rod (704), a swing arm one (705), a swing arm two (706), and a swing arm three (707). The output end of the driving motor (701) is connected to the driving shaft (702), and a transmission disc (703) is arranged on the outer part of the driving shaft (702). A transmission rod (704) penetrates through the surface of the transmission disc (703), and a swing arm one (705), a swing arm two (706), and a swing arm three (707) are sequentially connected to the outer part of the transmission rod (704) from front to back. One ends of the swing arm one (705), the swing arm two (706), and the swing arm three (707) far away from the transmission rod (704) are all connected to a support seat (8) through a rotating shaft, and a piston (9) is fixed at one end of the support seat (8) far away from the transmission disc (703).

2. The portable air sampler according to claim 1, characterized in that The accommodation groove (2) and the sampling pipes (3) are in communication with each other, and there are three sampling pipes (3).

3. A portable air sampler according to claim 1, characterized in that, The output end of the sampling pipe (3) is connected to a sampling tube (4), and a one-way exhaust valve (5) is arranged on the sampling tube (4).

4. A portable air sampler according to claim 3, wherein, A one-way intake valve (6) is arranged at the input end of the sampling pipe (3), and the number of the sampling pipes (3), the sampling tubes (4), the one-way exhaust valves (5), the one-way intake valves (6), the support seats (8), and the pistons (9) is the same.

5. The portable air sampler according to claim 1, wherein, The driving shaft (702) and the transmission rod (704) are parallel to each other, and the swing arm one (705), the swing arm two (706), and the swing arm three (707) are evenly distributed along the outer part of the transmission rod (704).

6. The portable air sampler according to claim 3, wherein The piston (9) is arranged inside the sampling pipe (3), and an external thread is arranged on the outer part of one end of the sampling tube (4) far away from the sampling pipe (3).

7. A portable air sampler according to claim 1, characterized in that, A hole (10) is formed in the left side of the surface of the housing (1), and an anti-slip gasket (11) is arranged in the hole (10).

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