CN218994887U

CN218994887U - Atmospheric sampler capable of switching flow

Info

Publication number: CN218994887U
Application number: CN202223404342.9U
Authority: CN
Inventors: 曾令文; 张伟治; 郭兰艳; 张君子卿; 曾静
Original assignee: Shenzhen Guangdong Technology Co ltd
Current assignee: Shenzhen Guangdong Technology Co ltd
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-05-09
Anticipated expiration: 2032-12-19

Abstract

The utility model discloses an atmospheric sampler capable of switching flow, which comprises a shell, wherein an air bin is arranged in the shell, one end of the air bin is provided with an air inlet channel and an air outlet channel, one side of the shell is provided with an air nozzle outer part, the air nozzle outer part is provided with a bin air inlet and a bin air outlet, one side of the air bin is provided with an air pump, the air inlet of the pump is communicated with the air inlet channel, the air bin is internally provided with a steady flow air volume, the air pump is communicated with the steady flow air volume, one end of the air outlet channel is communicated with a second adjusting channel, one end of the air pump is provided with an adjusting piece, the first adjusting channel is in sealing connection with the second adjusting channel through the adjusting piece, and the adjusting piece is provided with an adjusting hole. The utility model provides an atmosphere sampler capable of switching flow, which can switch flow by changing an adjusting piece and an air pump, is convenient to switch, reduces the use cost and lightens the operation load.

Description

Atmospheric sampler capable of switching flow

Technical Field

The utility model relates to the technical field of atmospheric samplers, in particular to an atmospheric sampler capable of switching flow.

Background

An atmospheric sampler is an instrument or device that collects atmospheric contaminants or contaminated air. The gas sampling device is various in types and can be divided into a gas sampling device and a particulate matter sampling device according to the collection objects; the use sites can be classified into an environmental sampler, an indoor sampler, and a pollution source sampler. In addition, there are special purpose atmospheric samplers, such as those that collect gas and particulate matter, for example.

The atmospheric sampler plays a good role in detecting harmful gases in the air and the environment. The existing atmospheric sampler generally comprises an air bin and an air pump, wherein an air inlet channel and an air outlet channel are formed in the air bin, when the air pump is started, air enters the air pump from the air inlet channel, the air pump outputs the air to the air outlet channel, and finally the air is discharged from the air outlet channel. However, the existing atmospheric sampler is a machine of one type corresponding to one output flow range, and when in field operation, a plurality of hosts are usually required to be carried, so that the atmospheric sampler is inconvenient to carry and increases the use cost.

Disclosure of Invention

The utility model aims to provide an atmosphere sampler capable of switching flow, which can switch flow by changing an adjusting piece and an air pump, is convenient to switch, reduces the use cost, lightens the work load and improves the working efficiency.

The utility model discloses an atmospheric sampler capable of switching flow, which adopts the following technical scheme:

the utility model provides an atmosphere sampler of switchable flow, includes the casing, be equipped with the gas storehouse in the casing, inlet channel and air outlet channel have been seted up to gas storehouse one end, casing one side is equipped with the outer part of air cock, bin air inlet and bin gas outlet have been seted up on the outer part of air cock, bin air inlet and inlet channel intercommunication, bin gas outlet and air outlet channel intercommunication, gas storehouse one side is equipped with the air pump, pump air inlet and pump air outlet have been seted up on the air pump, pump air inlet and inlet channel intercommunication, steady flow gas volume has been seted up in the gas storehouse, pump air outlet and steady flow gas volume intercommunication, steady flow gas volume one end intercommunication has first regulation passageway, air outlet channel one end intercommunication has the second regulation passageway, air pump one end is equipped with the regulating part, the regulating part is pegged graft between first regulation passageway and second regulation passageway, first regulation passageway passes through regulating part sealing connection with the second regulation passageway, set up porose on the regulating part, first regulation passageway passes through regulation hole intercommunication with the second regulation passageway.

As a preferable scheme, an air inlet volume is formed in the air bin, the air inlet volume is positioned at one end, close to the air pump, of the air inlet channel, and the air inlet channel is communicated with an air inlet of the pump through the air inlet volume.

As a preferable scheme, the gas bin is internally provided with a gas outlet volume, the position of the gas outlet volume is corresponding to the position of the pump outlet, and the pump outlet is communicated with the steady flow gas volume through the gas outlet volume.

As an optimal scheme, the gas bin is made of silica gel, and the gas bin is integrally formed.

As a preferred scheme, the first pressure taking hole is formed in the first adjusting channel, the second pressure taking hole is formed in the second adjusting channel, differential pressure sensors are arranged at positions, corresponding to the first pressure taking hole and the second pressure taking hole, of the air bin, and the first pressure taking hole and the second pressure taking hole are matched with the differential pressure sensors.

As an optimal scheme, be equipped with the air cock connecting piece between air cock outer part and the casing, the lateral wall of casing is fixed to be located to the air cock connecting piece, the communication can be dismantled with the air cock connecting piece to the air cock outer part, inlet channel and air outlet channel all communicate with the air cock connecting piece.

As an optimal scheme, a sealing ring is arranged between the air tap outer part and the air tap connecting piece.

Preferably, a battery pack is further arranged in the shell, and the battery pack is a rechargeable battery pack.

Preferably, a touch display screen is arranged on one side of the shell.

As a preferable scheme, a PCB assembly is arranged in the shell, and the PCB assembly is fixedly connected with the bottom surface of the air bin.

The flow-switchable atmospheric sampler disclosed by the utility model has the beneficial effects that: when the sampler works, the air pump is started, air is sucked from the bin air inlet of the air tap outer part, the air enters the air pump through the air inlet channel of the air bin, and is discharged from the air pump into the steady flow air capacity of the air bin, the steady flow air capacity is large, the density of the air is reduced after entering the steady flow air capacity, the fluctuation amplitude is reduced, so that the steady flow effect is achieved, the calculation of the subsequent air flow is facilitated, the accuracy is improved, the air in the steady flow air capacity is discharged along the first adjusting channel, the air flows into the second adjusting channel through the adjusting holes on the adjusting piece, the adjusting holes with different apertures are correspondingly matched with the air pumps with different capacities, so as to correspond to different flow, in the process, the adjusting pieces with different apertures and the air pumps with corresponding capacities can be replaced according to the operation requirement, thereby realizing flow switching, the adjusting pieces and the air pump are integrally arranged, only the corresponding modules are needed to be selected when the flow is switched, the use cost is reduced, the operation load is improved, the working efficiency is improved, and finally the air is discharged from the air outlet channel of the air tap outer part.

Drawings

Fig. 1 is a schematic diagram of the flow-switchable atmospheric sampler of the present utility model.

Fig. 2 is an exploded view of the switchable flow atmospheric sampler of the present utility model.

FIG. 3 is a schematic diagram of the flow-switchable atmospheric sampler cartridge of the present utility model.

FIG. 4 is a schematic diagram of another view of the flow-switchable atmospheric sampler cartridge of the present utility model.

Fig. 5 is a schematic diagram of the structure of the air pump of the air sampler with switchable flow rate of the present utility model.

Fig. 6 is a schematic diagram of a switchable flow atmospheric sampler gas circuit in accordance with the present utility model.

10. A housing; 11. a battery pack; 12. touching the display screen; 13. a differential pressure sensor; 14. a PCB assembly; 20. a gas bin; 21. an air intake passage; 22. an air outlet channel; 23. steady flow gas volume; 24. an air inlet volume; 25. the gas volume is discharged; 26. a first tuning passage; 27. a second tuning passage; 28. a first pressure taking hole; 29. a second pressure taking hole; 30. an air tap outer member; 31. a bin air inlet; 32. a bin air outlet; 33. an air tap connecting piece; 34. a seal ring; 40. an adjusting member; 41. an adjustment aperture; 50. an air pump; 51. a pump inlet; 52. and an outlet of the pump.

Detailed Description

The utility model is further illustrated and described below in conjunction with the specific embodiments and the accompanying drawings:

referring to fig. 1 to 6, an atmospheric sampler capable of switching flow rates includes a housing 10, an air chamber 20 is provided in the housing 10, the air chamber 20 is made of silica gel, the air chamber 20 is integrally formed, an air inlet channel 21 and an air outlet channel 22 are provided at one end of the air chamber 20, an air nozzle outer member 30 is provided at one side of the housing 10, an air chamber inlet 31 and an air chamber outlet 32 are provided on the air nozzle outer member 30, the air chamber inlet 31 is communicated with the air inlet channel 21, the air chamber outlet 32 is communicated with the air outlet channel 22, an air pump 50 is provided at one side of the air chamber 20, an air pump inlet 51 and an air pump outlet 52 are provided on the air pump 50, the air pump inlet 51 is communicated with the air inlet channel 21, a steady flow air volume 23 is provided in the air chamber 20, one end of the steady flow air volume 23 is communicated with a first adjusting channel 26, one end of the air outlet channel 22 is communicated with a second adjusting channel 27, an adjusting member 40 is provided at one end of the air pump 50, the adjusting member 40 is inserted between the first adjusting channel 26 and the second adjusting channel 27, the first adjusting channel 26 and the second adjusting channel 27 are hermetically connected by the adjusting member 40, an adjusting hole 41 is provided on the adjusting member 40, and the first adjusting hole 41 is communicated with the second adjusting hole 41 by the first adjusting channel 26.

When the sampler works, the air pump 50 is started, air is sucked from the bin air inlet 31 of the air tap outer part 30, the air enters the air pump 50 through the air inlet channel 21 of the air bin 20, and is discharged from the air pump 50 into the steady flow air volume 23 of the air bin 20, the volume of the steady flow air volume 23 is large, the density of the air is reduced after the air enters the steady flow air volume 23, the fluctuation amplitude is reduced, so that the steady flow effect is achieved, the calculation of the follow-up air flow is convenient, the accuracy is improved, the air in the steady flow air volume 23 is discharged along the first adjusting channel 26, the air flows into the second adjusting channel 27 through the adjusting holes 41 on the adjusting piece 40, the adjusting holes 41 with different apertures are correspondingly matched with the air pumps 50 with different capacities, so as to correspond to different flow, in the process, the adjusting piece 40 with different apertures and the air pumps 50 with corresponding capacities can be replaced according to the operation requirement, so that the flow switching is realized, the adjusting piece 40 and the air pump 50 are integrally arranged, the use cost is reduced, the load is lightened, the load is improved, and the air is discharged from the air tap outer part 22 of the air tap outer part 20.

Referring to fig. 4, an intake air volume 24 is provided in the air chamber 20, the intake air volume 24 is located at one end of the intake passage 21 near the air pump 50, and the intake passage 21 is communicated with the pump air inlet 51 through the intake air volume 24. The gas chamber 20 is internally provided with a gas outlet volume 25, the position of the gas outlet volume 25 is corresponding to the position of the pump outlet 52, and the pump outlet 52 is communicated with the steady flow gas volume 23 through the gas outlet volume 25. The gas volume is additionally arranged at the folded angle of the gas path for buffering, so that the gas resistance can be reduced. In addition, the air bin 20 is integrally formed by silica gel, the air path is connected with the hose, and the hose is integrated into one silica gel part, so that the risk of hose falling off due to manual connection pipe, hose aging and the like is greatly reduced, and the assembly and processing efficiency is improved.

Referring to fig. 3 and 4, a first pressure taking hole 28 is formed in the first adjusting channel 26, a second pressure taking hole 29 is formed in the second adjusting channel 27, a differential pressure sensor 13 is disposed at a position of the air chamber 20 corresponding to the first pressure taking hole 28 and the second pressure taking hole 29, and the first pressure taking hole 28 and the second pressure taking hole 29 are both matched with the differential pressure sensor 13. The differential pressure sensor 13 can calculate a differential pressure value through the pressure taking hole, so that the subsequent flow calculation is facilitated.

Referring to fig. 1 and 2, an air tap connector 33 is disposed between the air tap outer member 30 and the housing 10, the air tap connector 33 is fixedly disposed on a side wall of the housing 10, the air tap outer member 30 is detachably connected to the air tap connector 33, and the air inlet channel 21 and the air outlet channel 22 are both connected to the air tap connector 33. Further, a sealing ring 34 is arranged between the air tap outer part 30 and the air tap connecting piece 33. The air tap outer part 30 is detachably mounted on the side wall of the shell 10 through an air tap connecting piece 33, and is communicated with the air inlet channel 21 and the air outlet channel 22 of the air bin 20 through the air tap connecting piece 33, so that the maintenance and replacement of the air tap outer part 30 are facilitated. The seal ring 34 can enhance the air tightness between the air tap outer member 30 and the air tap connecting piece 33, and prevent air leakage.

Referring to fig. 2, a battery pack 11 is further disposed in the housing 10, and the battery pack 11 is a rechargeable battery pack 11. The rechargeable battery pack 11 can improve the cruising ability of the sampler. In addition, the rechargeable battery pack 11 is fixedly mounted on the top case of the housing 10, and forms a module with the top case of the housing 10 after production, thereby facilitating assembly. In this embodiment, the charging port is still installed to the lateral wall of casing 10, and the charging port is TYPE-C charging port, can use quick charge technique, has reduced the charge time, has improved the charging efficiency, can also match the most quick charger on the market simultaneously.

Referring to fig. 1, a touch display 12 is disposed on one side of a housing 10. The service life of the mechanical key is limited, the mechanical key is easy to malfunction and even lose efficacy after being used for a long time, and experience is poor, so that the functional information can be displayed maximally by adopting the touch display screen 12, and meanwhile, the operation of a user can be more convenient, and the user experience is optimized. In addition, the touch display 12 is fixedly installed at one side of the bottom case of the housing 10, and forms a module with the bottom case of the housing 10 after production, thereby facilitating assembly.

Referring to fig. 2, a PCB assembly 1414 is disposed in the housing 10, and the PCB assembly 1414 is fixedly connected to the bottom surface of the air chamber 20. The PCB assembly 14 is fixedly connected with the air bin to form a module, and can be directly assembled in the shell during installation, so that the operation is convenient.

The utility model provides an atmosphere sampler capable of switching flow, when the sampler works, an air pump is started, air is sucked from a bin air inlet of an air nozzle outer part, enters an air pump, is discharged from the air pump into a steady flow air volume of the air bin, has large volume, reduces density after entering the steady flow air volume, reduces fluctuation amplitude, thereby achieving steady flow effect, facilitating calculation of subsequent air flow, improving accuracy, the air in the steady flow air volume is discharged along a first adjusting channel, flows into a second adjusting channel from adjusting holes on the adjusting part, and correspondingly matches air pumps with different capacities, thereby corresponding to different flow, in the process, the adjusting part and the air pump with the corresponding capacities can be replaced according to operation requirements, thereby realizing flow switching, the adjusting part and the air pump are integrally arranged, a module is formed, only the corresponding module is needed to be selected when the flow is switched, switching and assembling are convenient, the use cost is reduced, the operation efficiency is lightened, and finally, the load is increased, and the air is discharged from the air outlet of the air nozzle outer part.

Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims

1. The utility model provides an atmosphere sampler of changeable flow, its characterized in that, includes the casing, be equipped with the gas storehouse in the casing, inlet channel and air outlet channel have been seted up to gas storehouse one end, casing one side is equipped with the air cock external part, bin air inlet and bin gas outlet have been seted up on the air cock external part, bin air inlet and inlet channel intercommunication, bin gas outlet and air outlet channel intercommunication, gas storehouse one side is equipped with the air pump, pump air inlet and pump air outlet have been seted up on the air pump, pump air inlet and inlet channel intercommunication, the stationary flow air volume has been seted up in the gas storehouse, pump air outlet and stationary flow air volume intercommunication, stationary flow air volume one end intercommunication has first regulating channel, air outlet channel one end intercommunication has the second regulating channel, air pump one end is equipped with the regulating part, the regulating part is pegged graft between first regulating channel and second regulating channel, first regulating channel passes through regulating part sealing connection with the second regulating channel, set up the hole on the regulating part, first regulating channel and second regulating channel pass through the regulation hole intercommunication.

2. The flow-switchable atmospheric sampler of claim 1, wherein the air chamber is provided with an air inlet volume, the air inlet volume is located at one end of the air inlet channel near the air pump, and the air inlet channel is communicated with the air inlet of the pump through the air inlet volume.

3. The atmosphere sampler capable of switching flow according to claim 1, wherein the gas chamber is provided with a gas outlet volume, the position of the gas outlet volume is corresponding to the position of the pump outlet port, and the pump outlet port is communicated with the steady flow gas volume through the gas outlet volume.

4. The flow-switchable atmospheric sampler of claim 1 wherein the air reservoir is a silica gel material and the air reservoir is integrally formed.

5. The atmosphere sampler capable of switching flow according to claim 1, wherein the first adjusting channel is provided with a first pressure taking hole, the second adjusting channel is provided with a second pressure taking hole, the positions of the air bin corresponding to the first pressure taking hole and the second pressure taking hole are provided with differential pressure sensors, and the first pressure taking hole and the second pressure taking hole are matched with the differential pressure sensors.

6. The flow-switchable atmospheric sampler of claim 1, wherein an air tap connector is disposed between the air tap outer member and the housing, the air tap connector is fixedly disposed on a side wall of the housing, the air tap outer member is detachably connected to the air tap connector, and the air inlet channel and the air outlet channel are both connected to the air tap connector.

7. The switchable flow atmospheric sampler of claim 6 wherein a seal is provided between the outer member of the air tap and the air tap connector.

8. The switchable flow atmospheric sampler of claim 1 wherein a battery pack is also disposed within the housing, the battery pack being a rechargeable battery pack.

9. The switchable flow atmospheric sampler of claim 1 wherein a touch display screen is provided on one side of the housing.

10. The switchable flow atmospheric sampler of claim 1 wherein a PCB assembly is disposed within the housing, the PCB assembly being fixedly connected to the bottom surface of the air reservoir.