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CN-224231022-U - Suction capacity checking device of smoking machine

CN224231022UCN 224231022 UCN224231022 UCN 224231022UCN-224231022-U

Abstract

The utility model relates to the technical field of cigarette detection, in particular to a suction capacity verification device of a smoking machine, which comprises a soap liquid storage part, a transparent manifold, a first three-way valve, a second three-way valve, a third three-way valve, a negative pressure suction part, a first liquid level sensor and a second liquid level sensor. According to the suction capacity verification device of the smoking machine, provided by the utility model, through arranging the negative pressure suction piece, the first three-way valve, the second three-way valve and the third three-way valve, the flow direction of soap liquid in the soap liquid storage piece can be controlled through the first three-way valve, the second three-way valve and the third three-way valve, automatic wall wetting is realized, a single soap film is automatically prepared in the transparent manifold pipe, manual wall wetting and film making are not needed, the operation technical requirements can be reduced, and the defects that the existing full manual mode is complex in operation, repeated operation is needed, the technical proficiency is high and the like are overcome, so that the verification process is complex and error is easy to occur.

Inventors

  • ZHANG TIEFENG
  • LI YANHUI
  • ZHAO ZHANHUI
  • MENG XIANGLIANG

Assignees

  • 北京欧美利华科技有限公司

Dates

Publication Date
20260512
Application Date
20250520

Claims (10)

  1. 1. A smoking machine puff volume calibration device, comprising: A soap solution storage member (1), wherein a storage space for storing soap solution is formed in the soap solution storage member (1); A transparent manifold (2), the transparent manifold (2) comprising a main pipe (201) and a branch pipe (202), the branch pipe (202) being in communication with the main pipe (201), one end of the main pipe (201) being in communication with the soap reservoir (1); A first three-way valve (3), wherein a first interface of the first three-way valve (3) is communicated with the branch pipe (202), and a second interface of the first three-way valve (3) is communicated with the atmosphere; A second three-way valve (4), wherein a first interface of the second three-way valve (4) is communicated with a third interface of the first three-way valve (3); A third three-way valve (5), wherein a first interface of the third three-way valve (5) is communicated with a second interface of the second three-way valve (4), the second interface of the third three-way valve (5) is communicated with the main pipe (201), a communication point of the second interface of the third three-way valve (5) and the main pipe (201) is positioned above a communication point of the branch pipe (202) and the main pipe (201), and the third interface of the third three-way valve (5) is communicated with the atmosphere; A negative pressure suction piece (6), wherein the negative pressure suction piece (6) is communicated with a third interface of the second three-way valve (4); The first liquid level sensor (7) is arranged on one side of the main pipe (201) and is used for detecting the liquid level height in the main pipe (201); And the second liquid level sensor (8) is arranged on one side of the branch pipe (202) and is used for detecting the liquid level height in the branch pipe (202).
  2. 2. A smoking machine puff volume calibration device according to claim 1, further comprising a foam removal member (9), the foam removal member (9) being disposed within the manifold (202).
  3. 3. A smoking machine puff volume calibration device according to claim 2, wherein the foam removal member (9) is located below the second level sensor (8).
  4. 4. A smoking machine puff volume calibration device according to claim 2, wherein the manifold (202) has a securing structure for securing the foam removing member (9) therein.
  5. 5. A smoking machine puff volume calibration device according to claim 2, wherein the foam removal member (9) is a foam removal mesh.
  6. 6. A smoking machine puff volume calibration device according to any one of claims 1 to 5, wherein one end of the main tube (201) communicates with the bottom of the soap reservoir (1).
  7. 7. The smoking machine puff volume calibration device according to any one of claims 1 to 5, further comprising a fluid replacement structure (10), wherein the fluid replacement structure (10) is in communication with the soap reservoir (1) and wherein the fluid replacement structure (10) is in communication with the atmosphere.
  8. 8. A smoking machine puff volume calibration device according to any one of claims 1 to 5, wherein the soap reservoir (1) is a transparent reservoir.
  9. 9. The smoking machine puff volume calibration device according to any one of claims 1 to 5, wherein the first three-way valve (3), the second three-way valve (4), and the third three-way valve (5) are all actuator-driven three-way valves; and/or the negative pressure suction piece (6) is a peristaltic pump.
  10. 10. A smoking machine puff volume calibration device according to any one of claims 1 to 5, further comprising a control terminal, wherein the first three-way valve (3), the second three-way valve (4), the third three-way valve (5) and the negative pressure pumping member (6) are all communicatively connected to the control terminal.

Description

Suction capacity checking device of smoking machine Technical Field The utility model relates to the technical field of cigarette detection, in particular to a smoking machine suction capacity verification device. Background The smoking machine is a device for simulating human smoking actions, capturing granular substances generated in the combustion process of cigarettes, and detecting nicotine, tar and other components through chemical analysis. To ensure repeatability and comparability of the test data per puff, the national standards prescribe that the standard puff volume should be (35.0±0.3) ml. Therefore, a checksum correction of the puff volume needs to be performed for each orifice (typically 20) of the smoking machine before each puff experiment is performed. In the prior art, typically, a fully manually operated custom soap film flow meter is used for checksum correction. Since the glass tube of the soap film flowmeter is in contact with air when in idle, the tube wall becomes dry, causing the soap film to break easily when moving in the tube, thus requiring the tube wall to be lubricated first. When the tube wall is lubricated, an operator usually uses the emulsion air bag to inflate the soap film box for a plurality of times, forces soap liquid to rise along the glass tube, and after the soap liquid exceeds the scale, the soap liquid is returned by the air release, and the repeated operation is needed for a plurality of times. And because the soap solution is easy to generate foam when flowing, a single soap film is difficult to generate in the verification process. In order to solve the problem, foam removal treatment is needed, the method is to seal other outlets of the glass tube, squeeze soap liquid to the top end of the glass tube by using a latex air bag, then drag out or dip out foam by using other tools, and the foam can be removed by repeated operation for many times. Therefore, the existing full manual mode has the defects of complex operation, repeated operation, high technical proficiency and the like, so that the verification process is complex and easy to make mistakes. Disclosure of utility model The utility model provides a smoking machine suction capacity verification device which is used for solving the defects that the existing full manual mode is complex in operation, needs repeated operation, is high in technical proficiency and the like, and causes complex verification process and easy error. The utility model provides a smoking machine suction capacity verification device which comprises a soap liquid storage part, a transparent manifold, a first three-way valve, a second three-way valve, a third three-way valve, a negative pressure suction part, a first liquid level sensor and a second liquid level sensor. The soap storage part is internally provided with a storage space for storing soap, the transparent manifold comprises a main pipe and a branch pipe, the branch pipe is communicated with the main pipe, one end of the main pipe is communicated with the soap storage part, a first interface of the first three-way valve is communicated with the branch pipe, a second interface of the first three-way valve is communicated with the atmosphere, a first interface of the second three-way valve is communicated with a third interface of the first three-way valve, a first interface of the third three-way valve is communicated with a second interface of the second three-way valve, a second interface of the third three-way valve is communicated with the main pipe, a communication point of the second interface of the third three-way valve and the main pipe is located above a communication point of the branch pipe and the main pipe, a third interface of the third three-way valve is communicated with the atmosphere, the negative pressure suction part is communicated with the third interface of the second three-way valve, the first liquid level sensor is arranged on one side of the main pipe and used for detecting the liquid level sensor in the main pipe, and the second liquid level sensor is arranged on one side of the main pipe and used for detecting the liquid level. The suction capacity verification device of the smoking machine provided by the utility model further comprises a foam removing piece, wherein the foam removing piece is arranged in the branch pipe. According to the smoking machine suction capacity verification device provided by the utility model, the foam removing piece is positioned below the second liquid level sensor. According to the suction capacity verification device of the smoking machine provided by the utility model, the fixing structure for fixing the foam removing piece is arranged in the branch pipe. According to the suction capacity verification device of the smoking machine provided by the utility model, the foam removing piece is a foam removing net. According to the smoking machine suction capacity verification device provided by the utility model, one