CN213239868U - Ventilation rate standard rod airflow adjusting mechanism - Google Patents
Ventilation rate standard rod airflow adjusting mechanism Download PDFInfo
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- CN213239868U CN213239868U CN202022267368.8U CN202022267368U CN213239868U CN 213239868 U CN213239868 U CN 213239868U CN 202022267368 U CN202022267368 U CN 202022267368U CN 213239868 U CN213239868 U CN 213239868U
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Abstract
The utility model provides a ventilation rate standard rod air current adjustment mechanism, applicable the ventilation rate standard rod includes along its axial distribution's capillary be equipped with a plurality of ventilation holes that lie in same radial plane on the radial surface of ventilation rate standard rod, and is a plurality of the ventilation hole communicates with the capillary that corresponds respectively, wherein, air current adjustment mechanism configures into the cover and establishes air current adjusting pipe on the ventilation rate standard rod, the air current adjusting hole has been seted up on the air current adjusting pipe to through winding the axial rotation of ventilation rate standard rod the air current adjusting pipe is adjusted the air current adjusting hole is in position on the ventilation rate standard rod makes a plurality of the ventilation hole is in the complete closure, partially open or the full open mode. Therefore, the air flow adjusting mechanism can realize multi-point calibration, verification or verification of indexes such as the paper ventilation rate, the filter tip ventilation rate, the total ventilation rate and the like of the cigarette physical index detection equipment by using one standard rod, and greatly saves the metering cost.
Description
Technical Field
The utility model relates to a cigarette physical index detection area, in particular to ventilation rate standard bar air current adjustment mechanism.
Background
The ventilation rate directly influences the release amount of tar and harmful components in the smoke of the cigarette, and has close relation with the release amount of main stream smoke and the quality of sensory quality. The ventilation rate is an important intrinsic process index of the low-tar cigarette product, and is an important parameter of the physical performance of the cigarette, wherein the important parameters comprise filter tip ventilation, paper ventilation, total ventilation and other indexes. The tobacco industry generally adopts ventilation rate detection equipment to detect the ventilation rate of cigarettes. The ventilation rate detection equipment needs to use a ventilation rate standard rod for calibration, verification and verification, and the ventilation rate standard rod can directly influence the measurement result of the cigarette ventilation rate.
The existing standard rod is distributed by changing the punching number of the area where the cigarette filter is located, so that the total airflow of the existing ventilation rate standard rod is divided into an end surface airflow part and a filter tip section airflow part, the filter tip ventilation test section can only be calibrated and verified, and the calibration function of a paper ventilation test is not realized. And each ventilation rate standard rod only has a fixed air flow distribution proportion value, and a plurality of different standard rods are matched for use when the ventilation rate test equipment is subjected to multi-point calibration, verification and verification in a measuring range. Therefore, the procurement of the existing standard bars is expensive.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model discloses it is necessary to provide a ventilation rate standard stick air current adjustment mechanism, can use a standard stick can carry out multiple spot verification, calibration or check work to cigarette ventilation rate check out test set's paper ventilation rate, filter tip ventilation rate, total ventilation rate index and suction resistance check out test set to effectively reduce the purchase expense of standard stick.
The utility model provides a specific technical scheme does:
the utility model provides a ventilation rate standard rod air current adjustment mechanism, is suitable for the ventilation rate standard rod includes the capillary that distributes along its axial be equipped with a plurality of ventilation holes that are located same radial plane on the radial surface of ventilation rate standard rod, a plurality of the ventilation hole respectively with the capillary intercommunication that corresponds, wherein, air current adjustment mechanism configures into the cover and establishes air current adjusting pipe on the ventilation rate standard rod, air current adjusting hole has been seted up on the air current adjusting pipe, and through winding the axial rotation of ventilation rate standard rod air current adjusting pipe adjusts the air current adjusting hole is in position on the ventilation rate standard rod makes a plurality of the ventilation hole is in the complete closure, the part is open or the full open mode.
When the vent hole is not exposed out of the air flow adjusting hole, namely is completely shielded by the air flow adjusting pipe, the vent hole cannot be communicated with a test air path of the cigarette ventilation rate index, and is in a closed state; when the air vent is partially or completely exposed from the air flow adjusting hole, the air vent can be communicated with a test air path of the cigarette ventilation rate index and is in a partially open state or an open state. Preferably, the ventilation rate standard rod suitable for the airflow adjusting mechanism is provided with a plurality of ventilation holes located in the same radial plane.
Based on the above, an air flow adjusting hole sealing structure is arranged at the air flow adjusting hole on the air flow adjusting pipe. Preferably, the air flow adjusting hole sealing structure is an air flow adjusting hole sealing ring.
Based on the above, the both ends of air current control pipe are equipped with tip inboard seal structure respectively.
Based on the above, the airflow adjusting pipe is an elastic airflow adjusting pipe.
Based on the above, the shape and the area of airflow adjusting hole cover 1 ~ 4 the ventilation hole. In particular, the shape and area of the airflow adjustment holes may cover 1, 2, 3 or 4 vent holes.
Based on the above, the shape of the air flow adjusting hole is oval or strip. Preferably, the symmetry axis of the air flow adjusting hole is axially parallel or perpendicular to the ventilation rate standard rod.
Based on the above, when the standard ventilation rate stick comprises cigarette paper section and filter section, and a plurality of the ventilation hole only sets up cigarette paper section or during the filter section, airflow regulating mechanism includes one airflow regulating pipe, and this airflow regulating pipe box is established cigarette paper section or on the filter section.
Herein, "cigarette paper segment" refers to the area of the total ventilation standard rod used to calibrate the cigarette paper ventilation sensor during the ventilation test, and "filter segment" refers to the area of the total ventilation standard rod used to calibrate the filter ventilation sensor during the ventilation test.
Based on the above, when the ventilation rate standard rod consists of a cigarette paper section and a filter tip section, and the cigarette paper section and the filter tip section are respectively provided with the ventilation holes positioned in the same radial plane; the airflow adjusting mechanism comprises two airflow adjusting pipes, and the two airflow adjusting pipes are respectively sleeved on the cigarette paper section and the filter section.
Based on above-mentioned adjustment mechanism, still include the sealed end cap of capillary, the sealed end cap of capillary demountable installation in the tip of ventilation rate standard rod. In this way, sealing of one end face of the ventilation standard rod can be achieved, thereby achieving 100% total ventilation or filter ventilation or paper ventilation. Preferably, said capillary seal plug is mounted on the end of said ventilation rate standard rod adjacent said length of rolled smoking paper, and said capillary seal plug seals the end of said capillary tube when an air flow passes through said capillary tube, so that the air flow cannot flow in from the end of said capillary tube, but instead enters through a vent hole in the capillary tube and then flows out from said filter section; when the capillary seal plug is removed from the air rate standard, air flows in from the end of the capillary and the air vent.
When the ventilation holes are only positioned in the same radial plane of the cigarette paper section or the filter section, and the airflow adjusting mechanism is composed of one airflow adjusting pipe, the working principle is as follows: the airflow flows through the capillary tube, the airflow adjusting tube is rotated around the axial direction of the ventilation rate standard rod to adjust the position of the airflow adjusting hole on the ventilation rate standard rod, the ventilation hole is not exposed to be gradually exposed or completely exposed from the airflow adjusting hole, so that the two through holes are opened one by one from being completely closed by the airflow adjusting hole to being completely opened, and the proportion of the airflow flowing in from the ventilation hole can be gradually increased from 0%; and the capillary tube sealing plug is arranged at the end part of the cigarette paper section, and when the gas inflow end of the ventilation rate standard rod is plugged, the proportion of the air flow flowing in from the ventilation hole of the cigarette paper section reaches 100 percent, so that the multi-point calibration, verification or verification of the paper ventilation or filter tip ventilation test index of the cigarette ventilation rate detection equipment within the range of 0 percent to 100 percent is realized.
When the ventilation holes are respectively positioned in the same radial plane of the cigarette paper section and the filter section, the air flow adjusting mechanism is composed of two air flow adjusting pipes which are respectively positioned in the cigarette paper section and the filter section, and the working principle is as follows: the airflow flows through the capillary tube, and respectively and rotatably sleeves the airflow adjusting tubes of the cigarette paper section and the filter section around the axial direction of the ventilation rate standard rod, the positions of the corresponding airflow adjusting holes on the ventilation rate standard rod are adjusted, so that the ventilation holes in the filter section and the ventilation holes in the cigarette paper section are respectively and completely closed by the corresponding airflow adjusting tubes to be opened one by one until the ventilation holes are completely opened, and the proportion of the airflow flowing in from the ventilation holes in the cigarette paper section and the ventilation holes in the filter section can be gradually increased from 0 percent; the capillary tube sealing plug is arranged at the end part of the cigarette paper section, and when the gas inflow end of the ventilation rate standard rod is plugged, the ratio of the air flow flowing in from the ventilation hole positioned in the cigarette paper section and the ventilation hole positioned in the filter section can reach 100 percent in total; therefore, the multi-point calibration, verification or verification of three test indexes of filter ventilation, paper ventilation and total ventilation of the cigarette ventilation rate detection equipment in the range of 0% to 100% is realized.
Therefore, the present invention provides the ventilation rate standard rod airflow adjusting mechanism, which is applicable to a standard rod including capillaries distributed along the axial direction thereof, wherein a plurality of ventilation holes located in the same radial plane are disposed on the radial outer surface of the ventilation rate standard rod, and the plurality of ventilation holes are respectively communicated with the corresponding capillaries, wherein the airflow adjusting mechanism is configured as an airflow adjusting pipe sleeved on the ventilation rate standard rod, the airflow adjusting pipe is provided with an airflow adjusting hole, and the airflow adjusting pipe is rotated around the axial direction of the ventilation rate standard rod to adjust the position of the airflow adjusting hole on the ventilation rate standard rod, so that the plurality of ventilation holes are in a fully closed, partially open or fully open state; therefore, when the ventilation rate test airflow is sucked from one end of the ventilation rate standard rod, the airflow is distributed between the end surface of the capillary and the ventilation holes, and the number of the ventilation holes in the open state and the closed state is controlled through the action of the airflow adjusting pipe, so that the airflow distribution ratio on the ventilation rate standard rod can be changed, the ventilation rate standard rod has a plurality of assigned parameters, and the ventilation rate adjusting range can be from 0% to 100%; therefore, the indexes such as the paper ventilation rate, the filter tip ventilation rate, the total ventilation rate and the like of the cigarette physical index detection equipment can be subjected to multi-point calibration, verification and the like by using one standard rod; the multi-point calibration or verification work of the cigarette ventilation rate detection equipment can be carried out without purchasing a plurality of standard rods with different specifications and different indexes, and the metering cost can be greatly saved.
Furthermore, the ventilation rate standard rod comprises a cigarette paper section and a filter tip section, and the ventilation holes communicated with the capillary tube can be arranged in the same radial plane of the cigarette paper section or the filter tip section, and also can be respectively arranged in the same radial plane of the cigarette paper section and the filter tip section, so that the air flow adjusting mechanism can be composed of one or two air flow adjusting pipes, and the air flow adjusting pipes can be sleeved on the cigarette paper section or the filter tip section, and also can be sleeved on the cigarette paper section and the filter tip section simultaneously; simultaneously, airflow regulating mechanism still includes the sealed end cap of detachable capillary, through the plug airflow regulating pipe and dismantlement the sealed end cap of capillary can realize 0% to 100% within range cigarette ventilation rate check out test set's filter tip ventilation rate, paper ventilation rate and total ventilation rate multiple spot calibration, verification.
Therefore, the utility model provides a ventilation rate standard stick air current adjustment mechanism has extended the range of application of standard stick, uses a standard stick can carry out verification or calibration work to cigarette ventilation rate check out test set's paper ventilation rate, filter tip ventilation rate and total ventilation rate index, uses a standard stick simultaneously to carry out the multiple spot to cigarette ventilation rate check out test set's paper ventilation rate, filter tip ventilation rate and total ventilation rate index and verifies, calibrate or check work to effectively reduce the purchase expense of standard stick.
Drawings
Fig. 1 is a schematic structural diagram of an application state of an air flow adjusting mechanism of a standard bar for ventilation rate according to an embodiment of the present invention, wherein an "arrow" in the diagram represents an air flow direction.
Fig. 2 is a structural schematic diagram of an application state of the ventilation rate standard rod airflow adjusting mechanism provided by the second embodiment of the present invention, wherein an "arrow" in the diagram represents an airflow flowing direction.
Wherein each figure label represents: 1. standard rod, 12, capillary tube, 16, cigarette paper segment, 18, filter segment, 2, 3, airflow adjusting tube, 22, 32, airflow adjusting hole, 14, 24, 34, vent hole, 4, end inner side sealing ring, 5, airflow adjusting hole sealing ring.
Detailed Description
The technical solution of the present invention will be described in further detail through the following embodiments.
Example one
Referring to fig. 1, in the present embodiment, an airflow adjusting mechanism for a ventilation rate standard rod is provided, where an applicable standard rod 1 includes ten capillary tubes 12 distributed along an axial direction thereof, three vent holes 14 located in a same radial plane are disposed on a radial outer surface of the ventilation rate standard rod 1, and the vent holes 14 are respectively communicated with the corresponding capillary tubes 12, where the airflow adjusting mechanism is configured as an airflow adjusting tube 2 sleeved on the ventilation rate standard rod 1, and an airflow adjusting hole 22 is disposed on the airflow adjusting tube 2, and the airflow adjusting tube 2 is rotated around the axial direction of the ventilation rate standard rod 1 to adjust positions of the airflow adjusting hole 22 on the ventilation rate standard rod 1, so that the three vent holes 14 are in a fully closed state, a partially open state, or a fully open state.
Specifically, the standard rod 1 suitable for the airflow adjusting mechanism provided by the present embodiment is composed of a cigarette paper segment 16 and a filter segment 18, and the three ventilation holes 14 are respectively located in the same radial plane on the filter segment 18 and are communicated with the corresponding three capillary tubes 12. The inner diameter of the vent hole 14 and the inner diameter of the capillary 12 are equal. The rolled smoking paper segment 16 is not provided with ventilation holes. The airflow adjusting pipe 2 is an elastic airflow adjusting pipe and is sleeved on the filter tip section 18, and covers the three ventilation holes 14. An oval air flow adjusting hole 22 is formed in the air flow adjusting pipe 2, and the symmetry axis of the oval air flow adjusting hole 22 is parallel to the axial direction and the radial direction of the ventilation rate standard rod 1 respectively. The airflow adjustment holes 22 are shaped and sized to cover three of the vent holes 14. The two ends of the air flow adjusting pipe 2 are respectively provided with an end part inner side sealing ring 4, and an air flow adjusting hole sealing ring 5 is arranged at the air flow adjusting hole, so that air flow can be reduced or avoided flowing out between the inner side of the air flow adjusting pipe 2 and the ventilation rate standard rod 1 in the testing process of cigarette ventilation rate detection equipment. The airflow adjusting pipe 2 can enable the three ventilation holes 14 to be shielded by the area outside the airflow adjusting holes 22 on the airflow adjusting pipe 2 and not exposed from the airflow adjusting holes 22 through rotating around the axial direction of the ventilation rate standard rod 1, so that the three ventilation holes 14 are in a fully closed state; the three air vents 14 are partially exposed or completely exposed from the air flow adjusting holes 22 by rotating the air flow adjusting pipe 2 around the axial direction of the ventilation rate standard rod 1, so that the three air vents 14 are in a partially open state or a fully open state.
The airflow adjusting mechanism further comprises a detachable capillary tube sealing plug (not shown), and the capillary tube sealing plug is detachably mounted at the end part of the ventilation rate standard rod. The capillary tube sealing plug is arranged at the end part of the ventilation rate standard rod close to the cigarette paper section 16, so that when air flows through the capillary tube, the capillary tube sealing plug is arranged on the ventilation rate standard rod 1 and can plug the air flow inflow end of the ventilation rate standard rod 1; when the capillary seal plug is removed from the air rate standard rod 1, air flow enters through the end of the capillary 12 and through the three air vents 14. In this embodiment, the capillary tube sealing plug is a rubber soft cover.
The working modes of the adjusting mechanism provided by the embodiment are as follows: the airflow flows through the capillary 12 of the standard ventilation rate rod 1, the position of the airflow adjusting hole 22 in the airflow adjusting pipe 2 on the standard ventilation rate rod 1 is adjusted by rotating around the axial direction of the standard ventilation rate rod 1, so that the three ventilation holes 14 are not exposed to gradual exposure or all exposure from the airflow adjusting hole 22, and therefore the three through holes 14 are completely closed by the airflow adjusting hole 22 to be opened one by one until all the through holes are opened, the proportion of the airflow flowing in from the ventilation holes 14 can be gradually increased from 0%, and the airflow proportion can be divided into 3 grades; and the capillary tube sealing plug is arranged at the end part of the cigarette paper section 16, and when the gas inflow end of the ventilation rate standard rod 1 is plugged, the proportion of the air flow flowing in from the ventilation hole 14 positioned in the filter section reaches 100%.
Specifically, when the three ventilation holes 14 of the filter segment 18 are totally closed by the airflow adjusting pipe 2, the filter ventilation rate test index of the cigarette ventilation rate detection equipment is 0;
rotating the airflow adjusting pipe 2 to open one of the three ventilation holes 14 in the filter section 18, wherein the filter ventilation rate test index of the cigarette ventilation rate detection equipment is about 20%;
continuing to rotate the airflow adjusting pipe 2 to open two of the three ventilation holes 14 of the filter section 18, wherein the filter ventilation rate test index of the cigarette ventilation rate detection equipment is about 45%;
continuing to rotate the airflow adjusting pipe 2 to open the three ventilation holes 14 in the filter section 18, wherein the filter ventilation rate test index of the cigarette ventilation rate detection equipment is about 80%;
and when the three ventilation holes 14 positioned in the filter section 18 are all opened, the capillary tube sealing plug is arranged at the end part of the cigarette paper section 16 so as to seal the end surface of the capillary tube in the ventilation rate standard rod, and at the moment, the filter ventilation rate test index of the cigarette ventilation rate detection equipment is 100%.
Therefore, the adjustment mechanism that this embodiment provided can make a cigarette filter ventilation standard stick have 5 assignment parameters at 0 ~ 100% within range, so can realize carrying out the multiple spot to the filter ventilation rate index of cigarette ventilation rate check out test set and verify, calibrate or check out work.
It will be appreciated that in other embodiments, the number of vent holes provided in the filter segment 18 is two, and the airflow adjustment holes 22 are shaped and sized to cover the two vent holes 14, such that a standard cigarette filter ventilation rod has 4 assigned parameters in the range of 0-100%.
In other embodiments, the number of the vent holes arranged in the filter segment 18 is four, and the shape and the area of the airflow adjusting holes 22 cover four vent holes 14, so that a standard cigarette filter ventilating rod has 6 assigned parameters within the range of 0-100%.
In other embodiments, the ventilation holes 14 are only arranged on the cigarette paper section 16, and similarly, the airflow adjusting pipe 2 is sleeved on the cigarette paper section 16, so that a cigarette paper ventilation standard rod can have a plurality of assignment parameters within a range of 0-100%, and multi-point verification, calibration or checking work on a paper ventilation rate index of cigarette ventilation rate detection equipment can be realized.
Example two
Referring to fig. 2, the present embodiment provides an airflow adjusting mechanism for a standard air rate rod, in which a standard air rate rod 1 includes ten capillaries 12 axially distributed along the rod. The ventilation rate standard rod 1 is composed of a cigarette paper segment 16 and a filter segment 18 along the axial direction. Be equipped with two sets of ventilation holes on the radial surface of ventilation rate standard rod 1, every group ventilation hole comprises four ventilation holes respectively, and four ventilation holes 24 are located in the same radial plane of filter section 18 and with the capillary 12 intercommunication that corresponds, four ventilation holes 34 are located in the same radial plane of cigarette paper section 16 and with the capillary 12 intercommunication that corresponds.
The air flow adjusting mechanism is configured into two air flow adjusting pipes 2 and 3 which are sleeved on the ventilation rate standard rod 1 and are elastic air flow adjusting pipes. The airflow adjusting pipe 2 is sleeved on the filter tip section 18 and covers four of the ventilation holes 24, an oval airflow adjusting hole 22 is formed in the airflow adjusting pipe 2, and the symmetry axis of the oval airflow adjusting hole 22 is parallel to the axial direction and the radial direction of the ventilation rate standard rod 1 respectively. The airflow adjustment holes 22 are shaped and sized to cover four of the vent holes 24. The two ends of the air flow adjusting pipe 2 are respectively provided with an end part inner side sealing ring 4, and the air flow adjusting hole is provided with an air flow adjusting hole sealing ring 5, so that the air flow can be reduced or prevented from flowing out between the inner side of the air flow adjusting pipe 2 and the filter section 18 on the ventilation rate standard rod 1 in the testing process of cigarette ventilation rate detection equipment. The position of the air flow adjusting hole 22 on the filter tip section 18 is adjusted by rotating the air flow adjusting pipe 2 around the axial direction of the ventilation rate standard rod 1, so that the four ventilation holes 24 are in a fully closed state, a partially open state or a fully open state.
The airflow adjusting pipe 3 is sleeved on the cigarette paper section 16 and covers the four ventilation holes 34. An oval air flow adjusting hole 32 is formed in the air flow adjusting pipe 3, and the symmetry axis of the oval air flow adjusting hole 32 is parallel to the axial direction and the radial direction of the ventilation rate standard rod 1 respectively. The airflow adjustment holes 32 are shaped and sized to cover the four vent holes 34. And two ends of the air flow adjusting pipe 3 are respectively provided with an end part inner side sealing ring 4, and an air flow adjusting hole sealing ring 5 is arranged at the air flow adjusting hole. The position of the air flow adjusting hole 32 on the cigarette paper section 16 is adjusted by rotating the air flow adjusting pipe 3 around the axial direction of the ventilation rate standard rod 1, so that the four ventilation holes 34 are in a fully closed, partially opened or fully opened state.
The airflow adjusting mechanism further comprises a detachable capillary tube sealing plug (not shown), and the capillary tube sealing plug is detachably mounted at the end part of the ventilation rate standard rod. The capillary tube sealing plug is arranged at the end part of the ventilation rate standard rod close to the cigarette paper section 16, so that when air flows through the capillary tube, the capillary tube sealing plug is arranged on the ventilation rate standard rod 1 and can plug the air flow inflow end of the ventilation rate standard rod 1; when the capillary seal plug is removed from the air rate standard rod 1, air flow enters through the end of the capillary 12, the four vents 24 and the four vents 34. In this embodiment, the capillary tube sealing plug is a rubber soft cover.
The working modes of the adjusting mechanism provided by the embodiment are as follows: the airflow flows through the capillary tube 12 of the standard ventilation rate rod 1, the airflow adjusting tube 2 which is sleeved on the filter section 18 around the axial direction of the standard ventilation rate rod 1 adjusts the position of the airflow adjusting hole 22 on the filter section 18, so that the ventilation hole 24 is not exposed from the airflow adjusting hole 22 to be gradually exposed or completely exposed, the ventilation holes 24 are completely closed to be opened one by one until being completely opened, and the inflow proportion of the airflow from the four ventilation holes 24 can be gradually increased from 0%; the airflow adjusting pipe 3 sleeved on the cigarette paper section 16 in an axial rotating manner around the ventilation rate standard rod 1 adjusts the position of the airflow adjusting hole 32 on the cigarette paper section 16, so that the ventilation holes 34 are not exposed to gradual exposure or all exposure from the airflow adjusting hole 32, the ventilation holes 34 are completely closed to be opened one by one until all ventilation holes are opened, and the inflow proportion of the airflow from the four ventilation holes 34 can be gradually increased from 0 percent; and (3) mounting the capillary tube sealing plug at the end part of the cigarette paper section 16, and when the gas inflow end of the ventilation rate standard rod 1 is plugged, the proportion of the air flows flowing in from the ventilation holes 24 and 34 is up to 100 percent in total. Therefore, the adjusting mechanism provided by the embodiment can enable one cigarette ventilation standard rod to have at least 18 assignment parameter combinations within the range of 0-100%. In actual use, assignment of the standard rods can be reduced, and the selection principle is a combination close to the actual ventilation value of the cigarette product.
Therefore, in the airflow adjusting mechanism provided by this embodiment, the applicable standard rod is respectively provided with the vent holes on the cigarette paper segment and the filter segment, at least three sets of airflow distribution proportional values can be given to the applicable standard rod according to the above working mode, and the multi-point verification and calibration of the three test indexes of the filter ventilation rate, the paper ventilation rate and the total ventilation rate of the cigarette ventilation rate detection device can be realized by using one applicable standard rod.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (10)
1. The utility model provides a ventilation rate standard rod air current adjustment mechanism, is suitable for the ventilation rate standard rod includes along its axial distribution's capillary be equipped with a plurality of ventilation holes that are located same radial plane on the radial surface of ventilation rate standard rod, a plurality of the ventilation hole communicates its characterized in that with the capillary that corresponds respectively: the airflow adjusting mechanism is configured to be sleeved with an airflow adjusting pipe on the ventilation rate standard rod, an airflow adjusting hole is formed in the airflow adjusting pipe, the airflow adjusting pipe rotates in the axial direction of the ventilation rate standard rod to adjust the position of the airflow adjusting hole on the ventilation rate standard rod, and the plurality of ventilation holes are in a fully closed state, a partially open state or a fully open state.
2. The adjustment mechanism of claim 1, wherein: and an air flow adjusting hole sealing structure is arranged at the air flow adjusting hole on the air flow adjusting pipe.
3. The adjustment mechanism of claim 2, wherein: and end part inner side sealing structures are respectively arranged at two ends of the airflow adjusting pipe.
4. The adjustment mechanism of claim 2, wherein: the airflow adjusting pipe is an elastic airflow adjusting pipe.
5. The adjustment mechanism of any one of claims 1 to 4, wherein: the shape and the area of the airflow adjusting holes cover 1-4 ventilation holes.
6. The adjustment mechanism of claim 5, wherein: the shape of the air flow adjusting hole is oval or long-strip.
7. The adjustment mechanism of claim 6, wherein: when the ventilation rate standard rod is composed of a cigarette paper section and a filter section, and the plurality of ventilation holes are only arranged in the cigarette paper section or the filter section, the airflow adjusting mechanism comprises one airflow adjusting pipe, and the airflow adjusting pipe is sleeved on the cigarette paper section or the filter section.
8. The adjustment mechanism of claim 6, wherein: when the ventilation rate standard rod consists of a cigarette paper section and a filter tip section, and the cigarette paper section and the filter tip section are respectively provided with ventilation holes positioned in the same radial plane; the airflow adjusting mechanism comprises two airflow adjusting pipes which are respectively sleeved on the cigarette paper section and the filter section.
9. The adjustment mechanism of claim 6, wherein: still include the sealed end cap of capillary, the sealed end cap of capillary demountable installation in the tip of ventilation rate standard rod.
10. The adjustment mechanism of claim 1, wherein: still include the sealed end cap of capillary, the sealed end cap of capillary demountable installation in the tip of ventilation rate standard rod.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022267368.8U CN213239868U (en) | 2020-10-13 | 2020-10-13 | Ventilation rate standard rod airflow adjusting mechanism |
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| CN202022267368.8U CN213239868U (en) | 2020-10-13 | 2020-10-13 | Ventilation rate standard rod airflow adjusting mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114370311A (en) * | 2021-12-10 | 2022-04-19 | 王德宏 | Variable exhaust muffler structure of internal combustion engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114370311A (en) * | 2021-12-10 | 2022-04-19 | 王德宏 | Variable exhaust muffler structure of internal combustion engine |
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