Cigarette draw resistance measuring device

Abstract

The utility model relates to the technical field of tobacco manufacturing, and discloses a cigarette draw resistance measuring device which comprises a dynamic draw resistance measurer and a clamping module, the clamping module comprises a first elastic piece, a limiting assembly and a suction nozzle piece, and the bottom end of the suction nozzle piece is fixed to the bottom of an inner cavity of the dynamic draw resistance measurer. The suction nozzle piece is communicated with a measuring end in the dynamic draw resistance measurer, a U-shaped groove is formed in the top end of the suction nozzle piece, two side groove walls of the U-shaped groove jointly form a clamping nozzle, a cigarette to be detected is inserted into the clamping nozzle, and draw resistance is measured through the measuring end; the limiting assembly is movably arranged on the outer side of the clamping nozzle in a sleeving mode and can enable the clamping nozzle to deform so as to change the clamping distance of the clamping nozzle. The two ends of the first elastic piece are fixed to the inner cavity of the dynamic draw resistance measurer and the limiting assembly respectively, the limiting assembly can be driven so that the clamping distance of the clamping nozzle can be decreased, the clamping module can rapidly clamp to-be-detected cigarettes of different specifications, the application range of the cigarette draw resistance measuring device is widened, and the measuring accuracy of the cigarette draw resistance measuring device is improved.

Description

Technical Field

[0001] This utility model relates to the field of tobacco manufacturing technology, and in particular to a device for measuring the draw resistance of cigarettes. Background Technology

[0002] Cigarettes are tobacco products made by cutting tobacco leaves into shreds, granules, flakes, powder, or other shapes, adding auxiliary materials, fermenting and storing them, and then rolling them for sale. During cigarette manufacturing, cigarettes are inserted into a dynamic draw resistance measuring device to test the resistance of the smoke passing through the cigarette, thereby improving the smoker's smoking experience and satisfaction.

[0003] Existing dynamic resistance measuring devices often have the following drawbacks: when cigarettes are inserted into the dynamic resistance measuring device for resistance measurement, the presence of cigarettes of different specifications results in inconsistent filter sizes. Larger filters cannot be inserted into the mouthpiece configured for the dynamic resistance measuring device, while smaller filters may leave gaps, leading to inaccurate measurement results.

[0004] Therefore, there is an urgent need for a device to measure the draw resistance of cigarettes in order to improve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a device for measuring the draw resistance of cigarettes, which can quickly clamp cigarettes of different specifications to be tested, thereby improving the accuracy of the measurement.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A device for measuring the draw resistance of cigarettes, including:

[0008] A dynamic resistance measuring device, wherein the inner cavity of the dynamic resistance measuring device is provided with a measuring end;

[0009] The clamping module includes a first elastic element, a limiting component, and a suction nozzle. The bottom end of the suction nozzle is fixedly installed at the bottom of the inner cavity of the dynamic resistance measuring device and communicates with the measuring end. The top end of the suction nozzle has a U-shaped groove, and the two side walls of the U-shaped groove together form a clamping mouth. Part of the limiting component is movably embedded in the inner cavity of the dynamic resistance measuring device, and the limiting component is movably sleeved on the outside of the clamping mouth, which can deform the clamping mouth to change the clamping distance. One end of the first elastic element is fixedly connected to the inner cavity of the dynamic resistance measuring device, and the other end of the first elastic element is fixedly connected to the limiting component. The first elastic element can drive the limiting component to reduce the clamping distance of the clamping mouth.

[0010] As an optional technical solution for measuring the cigarette draw resistance, the limiting component includes an adjusting sleeve, and the dynamic draw resistance measuring device has a mounting hole that communicates with the inner cavity of the dynamic draw resistance measuring device. The adjusting sleeve is slidably inserted through the mounting hole.

[0011] As an optional technical solution for the cigarette draw resistance measuring device, the limiting component further includes a limiting plate, which is fixedly connected to the adjusting sleeve and placed in the inner cavity of the dynamic draw resistance measuring device. A portion of the limiting plate protrudes horizontally from the adjusting sleeve. When the limiting plate abuts against the top of the inner cavity of the dynamic draw resistance measuring device, the mouthpiece is in its original state.

[0012] As an optional technical solution for measuring cigarette draw resistance, the adjusting sleeve has a tapered through hole, the top of which is the small end. The inner diameter of the small end of the tapered through hole is smaller than the outer size of the mouthpiece in its original state. The mouthpiece selectively passes through the tapered through hole into the adjusting sleeve. One end of the first elastic element is fixed to the bottom of the inner cavity of the dynamic draw resistance measuring device, and the other end of the first elastic element is fixed to the bottom of the adjusting sleeve. The first elastic element is always in an extended state and can drive the adjusting sleeve to move downward.

[0013] As an optional technical solution for measuring the draw resistance of cigarettes, an anti-slip sealing ring is fixed to the inner side of the mouthpiece.

[0014] As an optional technical solution for the cigarette draw resistance measuring device, the cigarette draw resistance measuring device further includes a collection module. The collection module includes two mounting brackets and two semi-conical covers. The two mounting brackets are symmetrically fixed on the dynamic draw resistance measuring device about the clamping module. The semi-conical covers correspond one-to-one with the mounting brackets and are detachably connected. The two semi-conical covers can be joined to form a conical channel. The bottom end of the conical channel is the small end, and the small end of the conical channel is joined to the mouthpiece.

[0015] As an optional technical solution for measuring cigarette draw resistance, the collection module further includes a slider, which is slidably mounted on the mounting bracket in a horizontal direction away from the clamping module, and the slider is detachably connected to the semi-conical cover.

[0016] As an optional technical solution for measuring the cigarette draw resistance, the collection module further includes a second elastic element, which is disposed between the mounting bracket and the slider along the sliding direction of the slider. When the two semi-conical covers are docked, the second elastic element is in a compressed state or an extended state.

[0017] As an optional technical solution for measuring cigarette draw resistance, when the two semi-conical covers are docked, the second elastic element is in an extended state; the two semi-conical covers are magnetically connected.

[0018] As an optional technical solution for measuring cigarette draw resistance, the measuring device for cigarette draw resistance also includes four legs, which are respectively fixedly installed at the four bottom corners of the dynamic draw resistance measuring device.

[0019] The beneficial effects of this utility model are:

[0020] The cigarette draw resistance measuring device provided by this utility model includes a dynamic draw resistance measuring device and a clamping module. The clamping module includes a first elastic element, a limiting component, and a mouthpiece. The bottom end of the mouthpiece is fixedly installed at the bottom of the inner cavity of the dynamic draw resistance measuring device, and the mouthpiece is connected to the measuring end inside the dynamic draw resistance measuring device. A U-shaped groove is formed at the top of the mouthpiece, and the two side walls of the U-shaped groove together form a clamp. The clamp is used to insert the cigarette to be tested. The dynamic draw resistance measuring device measures the draw resistance of the cigarette to be tested through the measuring end. Part of the limiting component is movably embedded in the inner cavity of the dynamic draw resistance measuring device, and the limiting component is movably sleeved on the outside of the mouthpiece, which can deform the mouthpiece to change the clamping distance. The two ends of the first elastic element are respectively fixed to the inner cavity of the dynamic draw resistance measuring device and the limiting component, which can drive the limiting component to reduce the clamping distance of the mouthpiece. This allows the clamping module to quickly clamp cigarettes of different specifications to be tested, improving the applicability and measurement accuracy of the cigarette draw resistance measuring device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the cigarette suction resistance measuring device provided in a specific embodiment of this utility model;

[0022] Figure 2 This is a cross-sectional view of the cigarette suction resistance measuring device provided in a specific embodiment of this utility model;

[0023] Figure 3 This is a split structure diagram of the clamping module (first elastic element not shown) of the cigarette suction resistance measuring device provided in a specific embodiment of this utility model;

[0024] Figure 4 This is a cross-sectional view of the limiting component of the cigarette draw resistance measuring device provided in a specific embodiment of this utility model;

[0025] Figure 5 This is a single-sided split structure diagram of the collection module of the cigarette draw resistance measuring device provided in a specific embodiment of this utility model.

[0026] In the picture:

[0027] 1. Dynamic resistance measuring instrument; 2. Support feet;

[0028] 3. Clamping module; 301. First elastic element; 302. Suction nozzle; 303. Limiting plate; 304. Adjusting sleeve; 305. Tapered through hole; 306. Grip nozzle;

[0029] 4. Collection module; 401. Mounting bracket; 402. Assembly hole; 403. Limiting groove; 404. Second elastic element; 405. Slider; 406. Sliding rod; 407. Limiting block; 408. Semi-conical cover. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0034] like Figures 1 to 5As shown, this utility model discloses a device for measuring the draw resistance of cigarettes, including a dynamic draw resistance measuring device 1 and a clamping module 3. The inner cavity of the dynamic draw resistance measuring device 1 is provided with a measuring end. The clamping module 3 includes a first elastic element 301, a limiting component, and a mouthpiece 302. The bottom end of the mouthpiece 302 is fixedly installed at the bottom of the inner cavity of the dynamic draw resistance measuring device 1, and the mouthpiece 302 is connected to the measuring end. The top end of the mouthpiece 302 is provided with a U-shaped groove. The two side walls of the U-shaped groove together form a clamp 306, which is used to insert the cigarette to be tested. The dynamic draw resistance measuring device 1 measures the cigarette to be tested through the measuring end. The suction resistance is measured by the limiting component, which is partially embedded in the inner cavity of the dynamic suction resistance measuring device 1. The limiting component is also movably sleeved on the outside of the mouthpiece 306, which can deform the mouthpiece 306 to change the clamping distance of the mouthpiece 306. One end of the first elastic member 301 is fixedly connected to the inner cavity of the dynamic suction resistance measuring device 1, and the other end of the first elastic member 301 is fixedly connected to the limiting component. The first elastic member 301 can drive the limiting component to reduce the clamping distance of the mouthpiece 306, which allows the clamping module 3 to quickly clamp cigarettes of different specifications to be tested, thereby improving the applicability and accuracy of the cigarette suction resistance measuring device.

[0035] Specifically, the cigarette draw resistance measuring device also includes four support legs 2, which are fixedly installed at the four corners of the bottom of the dynamic draw resistance measuring device 1, so as to stably place the cigarette draw resistance measuring device and avoid slippage affecting the measurement accuracy.

[0036] Furthermore, the limiting assembly includes an adjusting sleeve 304. The dynamic suction resistance measuring device 1 has a mounting hole that communicates with the inner cavity of the device. The adjusting sleeve 304 slides through the mounting hole. The limiting assembly also includes a limiting plate 303, which is fixedly connected to the adjusting sleeve 304 and placed within the inner cavity of the dynamic suction resistance measuring device 1. A portion of the limiting plate 303 protrudes horizontally from the adjusting sleeve 304, limiting the adjusting sleeve 304 and preventing it from detaching from the dynamic suction resistance measuring device 1. When the limiting plate 303 abuts against the top of the inner cavity of the dynamic suction resistance measuring device 1, the mouthpiece 306 is in its original state. At this time, the clamping distance of the mouthpiece 306 is at its maximum, allowing the cigarette to be tested to be smoothly placed into the mouthpiece 306.

[0037] Specifically, such as Figure 4As shown, the adjusting sleeve 304 has a tapered through hole 305. The top of the tapered through hole 305 is the small end, and the inner diameter of the small end of the tapered through hole 305 is smaller than the outer size of the clamp 306 in its original state. The clamp 306 selectively passes through the tapered through hole 305 to be fitted into the adjusting sleeve 304, changing the relative position of the clamp 306 and the adjusting sleeve 304, thus adjusting the clamping distance of the clamp 306. As the adjusting sleeve 304 slides downward along the opening direction of the clamp 306, the tapered through hole 305 squeezes the ends of both sides of the clamp 306 inward and tightens them, thus reducing the clamping distance of the clamp 306.

[0038] In this embodiment, one end of the first elastic element 301 is fixed to the bottom of the inner cavity of the dynamic suction resistance measuring device 1, and the other end of the first elastic element 301 is fixed to the bottom of the limiting plate 303. Since the adjusting sleeve 304 is sleeved on the mouthpiece 306, the first elastic element 301 is always in an extended state, which can drive the adjusting sleeve 304 to move downward, so as to facilitate the automatic adjustment of the clamping module 3 to clamp different specifications of cigarettes to be tested.

[0039] For example, there are two first elastic members 301. The two ends of the limiting plate 303 are respectively protruding in the horizontal direction on the adjusting sleeve 304 and are welded to the first elastic members 301 one by one. The other end of the first elastic member 301 is also welded to the inner cavity of the dynamic suction resistance measuring device 1. The structure is more stable and is beneficial to the clamping effect of the cigarette suction resistance measuring device.

[0040] Specifically, the inner side of the mouthpiece 306 is fixed with three anti-slip sealing rings at intervals. The anti-slip sealing rings can be made of rubber. The anti-slip sealing rings can clamp the cigarette to prevent it from falling off, and can also increase the sealing performance and improve the stability and accuracy of the draw resistance measurement.

[0041] Furthermore, the cigarette draw resistance measuring device also includes a collection module 4. The collection module 4 includes two mounting brackets 401 and two semi-conical covers 408. The two mounting brackets 401 are symmetrically fixed to the dynamic draw resistance measuring device 1 about the clamping module 3. The semi-conical covers 408 correspond one-to-one with the mounting brackets 401 and are detachably connected, allowing the semi-conical covers 408 to be installed after the cigarette to be tested is inserted, avoiding occupying the operating space for fixing the cigarette. The two semi-conical covers 408 can be joined to form a complete conical cover. The conical cover has a conical channel inside, with the bottom end of the conical channel being the smaller end, which connects to the mouthpiece 306. It can also be promptly disassembled for cleaning after measurement. The collection module 4 can collect the ash generated during measurement, preventing it from scattering and ensuring a clean measurement process.

[0042] In this embodiment, the collecting module 4 further includes a slider 405, which is slidably mounted on the mounting bracket 401 in a horizontal direction away from the clamping module 3. The slider 405 is detachably connected to the semi-conical cover 408, further facilitating the installation of the semi-conical cover 408. Exemplarily, the semi-conical cover 408 and the slider 405 are magnetically connected.

[0043] Specifically, the outer surface of the mounting bracket 401 has an assembly hole 402. A sliding rod 406 is welded to the end of the slider 405 away from the semi-conical cover 408. The collecting module 4 also includes a second elastic element 404, which is positioned between the mounting bracket 401 and the slider 405 along the sliding direction of the slider 405. One end of the second elastic element 404 is welded inside the assembly hole 402, and the other end is welded to the sliding rod 406. The sliding rod 406 slides inside the assembly hole 402, and this sliding motion drives the slider 405 to slide, thus forming a conical cover from the two semi-conical covers 408. A limiting groove 403 is provided on the inner surface of the assembly hole 402, and a limiting block 407 is welded to the outer surface of the sliding rod 406. The limiting groove 403 and the limiting block 407 cooperate to prevent the sliding rod 406 from twisting and disengaging from the assembly hole 402.

[0044] Understandably, when the two semi-conical covers 408 are joined, the second elastic element 404 is in a compressed or extended state. If the second elastic element 404 is in a compressed state when the two semi-conical covers 408 are joined, that is, the second elastic element 404 can drive the two sliders 405 to move closer to each other until the two semi-conical covers 408 are joined, when using the collection module 4, first pull the two sliders 405 away from each other, then magnetically attach the semi-conical covers 408 to the sliders 405, then release the sliders 405, the second elastic element 404 partially releases and rebounds, the sliders 405 slide, and the two semi-conical covers 408 are joined together, which can further clamp the cigarette and also cover the cigarette to collect ash. If the second elastic element 404 is in an extended state when the two semi-conical covers 408 are joined, that is, the second elastic element 404 can drive the two sliders 405 away from each other, in order to stably connect the two semi-conical covers 408, an interlocking buckle can be set between them or they can be magnetically connected.

[0045] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A device for measuring the draw resistance of cigarettes, characterized in that, include: Dynamic resistance measuring device (1), wherein the inner cavity of the dynamic resistance measuring device (1) is provided with a measuring end; The clamping module (3) includes a first elastic element (301), a limiting component, and a suction nozzle (302). The bottom end of the suction nozzle (302) is fixedly installed in the inner cavity bottom of the dynamic suction resistance measuring device (1), and the suction nozzle (302) is connected to the measuring end. The top end of the suction nozzle (302) is provided with a U-shaped groove, and the two side walls of the U-shaped groove together form a clamping nozzle (306). Part of the limiting component is movably embedded in the dynamic suction resistance measuring device (1). 1) The inner cavity of the clamping nozzle (306) is provided, and the limiting component is movably sleeved on the outside of the clamping nozzle (306) to deform the clamping nozzle (306) and change the clamping distance of the clamping nozzle (306); one end of the first elastic member (301) is fixedly connected to the inner cavity of the dynamic suction resistance measuring device (1), and the other end of the first elastic member (301) is fixedly connected to the limiting component. The first elastic member (301) can drive the limiting component to reduce the clamping distance of the clamping nozzle (306).

2. The cigarette draw resistance measuring device according to claim 1, characterized in that, The limiting component includes an adjusting sleeve (304), and the dynamic resistance measuring device (1) has an installation hole. The installation hole is connected to the inner cavity of the dynamic resistance measuring device (1), and the adjusting sleeve (304) slides through the installation hole.

3. The cigarette draw resistance measuring device according to claim 2, characterized in that, The limiting assembly also includes a limiting plate (303), which is fixedly connected to the adjusting sleeve (304) and placed in the inner cavity of the dynamic suction resistance measuring device (1). A portion of the limiting plate (303) protrudes horizontally from the adjusting sleeve (304). When the limiting plate (303) abuts against the top of the inner cavity of the dynamic suction resistance measuring device (1), the clamp (306) is in its original state.

4. The cigarette draw resistance measuring device according to claim 2, characterized in that, The adjusting sleeve (304) has a tapered through hole (305) inside. The top end of the tapered through hole (305) is the small end. The inner diameter of the small end of the tapered through hole (305) is smaller than the outer size of the clamp (306) in its original state. The clamp (306) selectively passes through the tapered through hole (305) into the adjusting sleeve (304). One end of the first elastic element (301) is fixed to the bottom of the inner cavity of the dynamic suction resistance measuring device (1), and the other end of the first elastic element (301) is fixed to the bottom of the adjusting sleeve (304). The first elastic element (301) is always in an extended state and can drive the adjusting sleeve (304) to move downward.

5. The cigarette draw resistance measuring device according to claim 1, characterized in that, An anti-slip sealing ring is fixed to the inner side of the clamp (306).

6. The cigarette draw resistance measuring device according to claim 1, characterized in that, The cigarette draw resistance measuring device also includes a collection module (4), which includes two mounting brackets (401) and two semi-conical covers (408). The two mounting brackets (401) are symmetrically fixed on the dynamic draw resistance measuring device (1) about the clamping module (3). The semi-conical covers (408) correspond one-to-one with the mounting brackets (401) and are detachably connected. The two semi-conical covers (408) can be connected to form a conical channel. The bottom end of the conical channel is the small end, and the small end of the conical channel is connected to the mouthpiece (306).

7. The cigarette draw resistance measuring device according to claim 6, characterized in that, The collecting module (4) further includes a slider (405), which is slidably disposed on the mounting bracket (401) in a horizontal direction away from the clamping module (3), and the slider (405) is detachably connected to the semi-conical cover (408).

8. The cigarette draw resistance measuring device according to claim 7, characterized in that, The collection module (4) further includes a second elastic element (404), which is disposed between the mounting bracket (401) and the slider (405) along the sliding direction of the slider (405). When the two semi-conical covers (408) are docked, the second elastic element (404) is in a compressed state or an extended state.

9. The cigarette draw resistance measuring device according to claim 8, characterized in that, When the two semi-conical covers (408) are joined together, the second elastic element (404) is in an extended state; the two semi-conical covers (408) are magnetically connected.

10. The measuring device for cigarette draw resistance according to any one of claims 1-9, characterized in that, The cigarette draw resistance measuring device also includes four legs (2), which are fixedly installed at the four bottom corners of the dynamic draw resistance measuring device (1).

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