Device for collecting three-hand cigarette residues

Abstract

The utility model relates to the technical field of environmental pollution detection equipment, in particular to a device for collecting three-hand cigarette residues, which comprises a collecting box, the top of the collecting box is rotatably connected with a top cover through a hinge seat, and a three-hand cigarette collecting mechanism is arranged in the collecting box. The collecting mechanism comprises two grid frames which are symmetrically distributed, the two grid frames are detachably connected with the inner wall of the collecting box through bolts, and a plurality of supporting rods which are distributed in a linear array mode are fixedly installed on the sides, close to the center of the collecting box, of the grid frames. Cloth for collecting three-hand cigarettes is clamped on the outer wall of the supporting rod through a clamp; a cigarette table used for fixing cigarettes is arranged at the bottom of the interior of the collecting box, cloth is hung perpendicular to the plane through a grid frame and a linear supporting rod so as to increase the adsorption area, a large amount of three-hand cigarette residues can be rapidly and evenly collected, and during collecting, other pollutants mixed in the environment can be avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of environmental pollution detection equipment, and specifically discloses a device for collecting third-hand smoke residue. Background Technology

[0002] Third-hand smoke refers to the toxic chemicals (such as nicotine, heavy metals, and polycyclic aromatic hydrocarbons) that remain on the surface of objects (such as clothing, furniture, and walls) after cigarettes have burned. Its harmful effects have been proven to persist for a long time and threaten human health through skin contact, inhalation, and other routes.

[0003] Currently, thirdhand smoke residues are mostly collected indoors, but they are often mixed with other environmental pollutants. Some working groups have built exposure rooms to conduct thirdhand smoke experiments and residue collection. However, exposure rooms have a large space, are expensive, and have low collection volumes. Some have also used sealed containers to collect thirdhand smoke, fixing a mesh frame with a cloth hanging inside the sealed container to the top. This makes it easy for smoke to accumulate at the top, resulting in excessively high concentrations of smoke components directly above the cigarette and uneven concentrations within the cloth. Therefore, this method needs improvement. Utility Model Content

[0004] This invention proposes a device for collecting third-hand smoke residue. By using a grid frame and linear support rods to suspend the fabric vertically to increase the adsorption area, a large amount of third-hand smoke residue can be collected quickly and evenly. Moreover, during collection, it can avoid mixing with other pollutants in the environment.

[0005] This invention is implemented as follows: a device for collecting third-hand smoke residue includes a collection box, the top of which is rotatably connected to a top cover via a hinged seat. Inside the collection box is a third-hand smoke collection mechanism, which includes two symmetrically distributed grid frames. The two grid frames are detachably connected to the inner wall of the collection box via bolts. Multiple linearly arrayed support rods are fixedly installed on the side of each grid frame near the center of the collection box. The outer walls of the support rods hold a cloth for collecting third-hand smoke via clamps. A cigarette holder for fixing cigarettes is provided at the bottom inside the collection box.

[0006] As a preferred embodiment of the present invention for collecting third-hand smoke residue, the cigarette holder has a U-shaped groove structure, and a cylindrical insert rod for fixing cigarettes is fixedly installed on the bottom surface of the inside.

[0007] As a preferred embodiment of the present invention for collecting third-hand smoke residue, the top cover is provided with an adjustment mechanism, the adjustment mechanism includes a ventilation tube communicating with the top cover, a fixed plate is fixedly installed inside the ventilation tube, a ventilation opening is opened on the outer wall of the fixed plate, a rotating plate is rotatably connected to the top of the fixed plate via a rotating shaft, a port corresponding to the ventilation opening is opened on the outer wall of the rotating plate, a protective net is covered on the inner side of the port, and the rotating plate can rotate around the rotating shaft to align or misalign the port with the ventilation opening.

[0008] As a preferred embodiment of the present invention for collecting third-hand smoke residue, the bottom of the collection box is fitted with a neodymium iron boron magnetic plate, the cigarette holder is made of ceramic, and a circular low-carbon steel plate is fixedly connected to the bottom of the cigarette holder. The center of the low-carbon steel plate coincides with the center of the magnetic plate, and the low-carbon steel plate and the magnetic plate are fixed by magnetic attraction to form a detachable connection structure.

[0009] As a preferred embodiment of this utility model for collecting third-hand smoke residue, the collection box is made of transparent acrylic material.

[0010] As a preferred embodiment of the device for collecting thirdhand smoke residue according to this utility model, the grid frame is made of 304 stainless steel.

[0011] The beneficial effects of this utility model are:

[0012] The fabric is suspended vertically by a four-sided grid frame and linear support rods, allowing the smoke to come into contact with both sides of the fabric. This effectively increases the fabric's adsorption area and enables the rapid collection of a large amount of third-hand smoke residue. The smooth surface of the 304 stainless steel grid frame ensures that smoke particles are not trapped in any dead corners, guaranteeing that third-hand smoke is adsorbed and collected evenly without obstruction.

[0013] The top cover opens and closes smoothly, the fabric is easy to secure and the cigarettes are easy to install, the adjustment mechanism can precisely control the airflow to ensure that the cigarettes burn fully and stably, and the protective net prevents dust, insects and other external debris from entering the collection box, thus avoiding contamination of the third-hand smoke residue absorbed by the fabric.

[0014] The transparent acrylic enclosure allows for easy observation, the ceramic cigarette holder is heat-resistant and chemically stable, and the stainless steel mesh frame is sturdy and durable. The overall equipment structure is stable, safe, and reliable, and it also has good environmental adaptability and a long service life. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1 This is a front sectional view of a device for collecting third-hand smoke residue according to the present invention.

[0017] Figure 2 This is an overall structural diagram of a device for collecting third-hand smoke residue according to the present invention.

[0018] Figure 3 This is a right-side structural view of the grid frame of this utility model;

[0019] Figure 4 This is a top view of the adjustment mechanism of this utility model.

[0020] The markings in the diagram are: 1. Collection box; 2. Top cover; 3. Grid frame; 301. Support rod; 302. Fabric; 4. Cigarette stand; 401. Insert rod; 5. Adjustment mechanism; 6. Ventilation duct; 601. Fixing plate; 602. Ventilation opening; 7. Rotating plate; 701. Port. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0022] Please see Figure 1-4 A device for collecting third-hand smoke residue includes a collection box 1. The top of the collection box 1 is rotatably connected to a top cover 2 via a hinged seat. The collection box 1 is equipped with a third-hand smoke collection mechanism, which includes two symmetrically distributed grid frames 3. The two grid frames 3 are detachably connected to the inner wall of the collection box 1 by bolts. Multiple linearly arrayed support rods 301 are fixedly installed on the side of the grid frame 3 near the center of the collection box 1. The outer wall of the support rods 301 is clamped with a cloth 302 for collecting third-hand smoke. A cigarette holder 4 for fixing cigarettes is provided at the bottom of the inside of the collection box 1.

[0023] In this embodiment: multiple sampling cloths 302 are fixed to multiple support rods 301 using clips. The cigarette filter is inserted into the insertion rod 401 for fixation. After the cigarette is lit, the top cover 2 is closed to form a closed space in the collection box 1. The smoke produced by the burning cigarette diffuses upward from the cigarette holder 4 and contacts the cloths 302 suspended by the surrounding grid frame 3. The cloths 302 can contact the smoke on both sides, which can quickly collect a large amount of third-hand smoke residue, improve the residue adsorption efficiency, and evenly adsorb and collect the third-hand smoke. When the rotating plate 7 is rotated, the position of the port 701 can be adjusted so that the port 701 is aligned with or misaligned with the ventilation port 602, controlling the air inflow. The protective net blocks dust, insects and other external debris from entering the collection box 1, avoiding contamination of the third-hand smoke residue adsorbed by the cloths 302.

[0024] As a technical optimization of this utility model, the top cover 2 is provided with an adjustment mechanism 5. The adjustment mechanism 5 includes a ventilation cylinder 6 that communicates with the top cover 2. A fixing plate 601 is fixedly installed inside the ventilation cylinder 6. A ventilation opening 602 is opened on the outer wall of the fixing plate 601. A rotating plate 7 is rotatably connected to the top of the fixing plate 601 through a rotating shaft. A port 701 corresponding to the ventilation opening 602 is opened on the outer wall of the rotating plate 7. A protective net is covered on the inner side of the port 701. The rotating plate 7 can rotate around the rotating shaft so that the port 701 is aligned or misaligned with the ventilation opening 602.

[0025] In this embodiment: The rotating plate 7 is connected to the fixed plate 601 via a central pivot and can rotate 360°. The inner side of the port 701 is covered with a protective mesh (0.074mm aperture). The protective mesh is made of stainless steel or nylon and only allows air and smoke particles to pass through, blocking dust, insects and other external debris from entering the collection box 1, thus avoiding contamination of the third-hand smoke residue absorbed by the fabric 302. Rotating the rotating plate 7 adjusts the position of the port 701. When the port 701 is completely aligned with the vent 602, the airflow is at its maximum. When the overlap area between the port 701 and the vent 602 decreases, the airflow decreases. When the rotating plate 7 completely covers the vent 602, the vent 602 is closed.

[0026] As a technical optimization of this utility model, a neodymium iron boron magnetic plate is embedded in the bottom of the collection box 1, the cigarette holder 4 is made of ceramic, and a circular low carbon steel plate is fixedly connected to the bottom of the cigarette holder 4. The center of the low carbon steel plate coincides with the center of the magnetic plate. The low carbon steel plate and the magnetic plate are fixed by magnetic attraction to form a detachable connection structure.

[0027] In this embodiment: the circular low-carbon steel plate at the bottom of the cigarette holder 4 is fixed to the magnetic plate in the collection box 1 by magnetic adsorption, ensuring uniform contact of the adsorption surface and providing stable connection force; the ceramic cigarette holder 4 can be combined with the low-carbon steel plate through a high-temperature sintering process to avoid direct contact between the cigarette butt and the steel plate, which may cause oxidation or demagnetization of the magnetic plate; when it is necessary to clean the cigarette holder 4, the cigarette holder 4 can be manually separated from the collection box 1 to facilitate the cleaning of the cigarette ash inside the cigarette holder 4. The cigarette holder 4 is made of ceramic material, which is resistant to high temperature and corrosion and does not react chemically with acidic substances in the smoke (such as nicotine, tar, and nitrosamines), thus avoiding the generation of new compounds that contaminate the third-hand smoke residue sample.

[0028] As a technical optimization of this utility model, the collection box 1 is made of transparent acrylic material.

[0029] In this embodiment: the collection box 1 is made of transparent acrylic material, which is transparent, lightweight and easy to clean. Operators can observe the burning status of the cigarette in real time (such as whether it is extinguished, whether the burning is uniform), the smoke diffusion path and the adsorption effect of the cloth 302.

[0030] As a technical optimization of this utility model, the grid frame 3 is made of 304 stainless steel.

[0031] In this embodiment, the grid frame 3 is made of 304 stainless steel, which makes the grid frame 3 corrosion resistant, extends the life of the device, and avoids metal rust contamination of the third-hand smoke sample.

[0032] The working principle and usage process of this utility model are as follows: When collecting third-hand smoke, the collection box 1 is opened through the top cover 2. Then, multiple sampling cloths 302 are fixed to multiple support rods 301 using clips. Next, the cigarette filter is inserted into the insertion rod 401 for fixation. After lighting the cigarette, the top cover 2 is closed to form a closed space in the collection box 1. The smoke produced by the burning cigarette diffuses upward from the cigarette holder 4 and contacts the cloths 302 suspended by the surrounding grid frame 3. The grid frame 3 is fixed to the inner wall of the collection box 1 with bolts. The support rods 301 are linearly arrayed. After being fixed by clips, the cloths 302 are in a vertical plane, so that the smoke contacts both sides of the cloths 302, which can quickly collect a large amount of third-hand smoke residue. The efficiency of residue adsorption is improved, and the cigarette ash falls into the bottom of the groove of the cigarette holder 4 for collection. The transparent acrylic collection box 1 makes it easy to observe the smoke diffusion state and the degree of adsorption by the cloth 302. When the rotating plate 7 is rotated, the position of the port 701 can be adjusted so that the port 701 is aligned with or misaligned with the vent 602, controlling the air inflow (e.g., when a single cigarette is burning, the port 701 is kept 50% aligned with the vent 602 to ensure air entry). The protective net blocks dust, insects and other external debris from entering the collection box 1, avoiding contamination of the third-hand smoke residue adsorbed by the cloth 302. This satisfies the oxygen required for combustion and slows down the smoke diffusion rate, providing sufficient time for the cloth 302 to adsorb and achieve the collection of third-hand smoke.

[0033] After collection, the ventilation port 602 is completely closed by adjusting the mechanism 5 on the top cover 2 to stop the air flow. The top cover 2 is then opened, the cloth 302 is removed, and a special wiping tool is used to collect the residue on the container wall. Since the low carbon steel plate at the bottom of the cigarette stand 4 is magnetically attracted and fixed to the magnetic plate in the collection box 1, it is easy to disassemble and clean the cigarette stand 4.

[0034] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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.

[0035] However, the above are merely specific embodiments of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A device for collecting three-hand smoke residues, comprising a collection tank (1), characterized in that: The top of the collection box (1) is rotatably connected to a top cover (2) via a hinge seat. The inside of the collection box (1) is provided with a third-hand smoke collection mechanism. The collection mechanism includes two symmetrically distributed grid frames (3), and the two grid frames (3) are detachably connected to the inner wall of the collection box (1) by bolts. Multiple linearly distributed support rods (301) are fixedly installed on the side of the grid frame (3) near the center of the collection box (1). The outer wall of the support rods (301) is clamped with a cloth (302) for collecting third-hand smoke. The bottom of the inside of the collection box (1) is provided with a cigarette holder (4) for fixing cigarettes.

2. A device for collecting three-hand smoke residue according to claim 1, characterized in that: The cigarette holder (4) has a U-shaped groove structure, and a cylindrical insert rod (401) for fixing cigarettes is fixedly installed on its inner bottom surface.

3. A device for collecting three-hand smoke residue according to claim 1, characterized in that: An adjustment mechanism (5) is provided on the top cover (2). The adjustment mechanism (5) includes a ventilation tube (6) that communicates with the top cover (2). A fixed plate (601) is fixedly installed inside the ventilation tube (6). A ventilation opening (602) is provided on the outer wall of the fixed plate (601). A rotating plate (7) is rotatably connected to the top of the fixed plate (601) through a rotating shaft. A port (701) corresponding to the ventilation opening (602) is provided on the outer wall of the rotating plate (7). A protective net is covered on the inner side of the port (701). The rotating plate (7) can rotate around the rotating shaft so that the port (701) is aligned or misaligned with the ventilation opening (602).

4. A device for collecting three-hand smoke residue according to claim 1, characterized in that: The bottom of the collection box (1) is fitted with a neodymium iron boron magnetic plate. The cigarette holder (4) is made of ceramic material. A circular low-carbon steel plate is fixedly connected to the bottom of the cigarette holder (4). The center of the low-carbon steel plate coincides with the center of the magnetic plate. The low-carbon steel plate and the magnetic plate are fixed by magnetic attraction to form a detachable connection structure.

5. A device for collecting three-hand smoke residue according to claim 1, characterized in that: The collection box (1) is made of transparent acrylic material.

6. A device for collecting three-hand smoke residue according to claim 1, characterized in that: The grid frame (3) is made of 304 stainless steel.

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