Gear extrusion device for extinguishing cigarette butts

The automatic cigarette butt extinguishing device with gear squeezing solves the problems of unsanitary conditions and fire hazards of existing cigarette butt extinguishing devices, and achieves convenient and hygienic cigarette butt disposal, suitable for public places and homes.

CN122250701APending Publication Date: 2026-06-23王孙琪
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
王孙琪
Filing Date
2024-12-19
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing cigarette butt extinguishing devices are unsanitary, require secondary treatment, and pose a fire hazard.

Method used

The device employs a gear extrusion mechanism, which uses a geared motor to drive the gears to rotate the cigarette extinguishing tooth rollers in opposite directions. Through the meshing of the gears and the cooperation of the spring arms, the cigarette butt is automatically extinguished. The motor is controlled by a photoresistor and a light control circuit board.

Benefits of technology

It achieves a hygienic and convenient cigarette butt extinguishing process, eliminating the need for secondary treatment, reducing fire risk, and has fewer components and lower cost, making it suitable for public places and homes.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122250701A_ABST
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Abstract

The application discloses a gear extrusion cigarette end extinguishing device, characterized in that two opposing force receiving cigarette extinguishing sharp tooth rollers under spring action are arranged between two parallel positioning wall plates, wherein an arc-shaped shaft hole corresponding to the position of the positioning wall plate is matched with the bearing at the two ends of the shaft, a main drive gear and a sub drive gear and synchronous transmission gears for driving the rotation of the two cigarette extinguishing sharp tooth rollers are arranged, the main drive gear is matched with a speed reducer motor, and a system that can make the two cigarette extinguishing sharp tooth rollers rotate towards each other and move to both sides to extrude the burning part of the cigarette end when the cigarette end passes through to make the cigarette end extinguish is formed.
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Description

Technical Field This invention relates to environmentally friendly hygiene products, and is related to household ashtrays and cigarette butt containers used in public places. Background Technology In reality, the problem of smokers not completely extinguishing cigarette butts, leading to re-ignition and the creation of secondhand smoke, is a major headache, and fires caused by this are not uncommon. Currently, the common solution is to add water or extinguishing foam to ashtrays for easy extinguishing, but these methods are unsanitary and require secondary treatment. Summary of the Invention To address the aforementioned problems, the purpose of this invention is to provide a hygienic, convenient, pollution-free, and non-remedial device for extinguishing cigarette butts by gear compression.

[0001] To achieve the above objectives, the present invention adopts the following technical solution: a device for extinguishing cigarette butts by gear compression, characterized in that: between two parallel fixed positioning plates, there are two cigarette-extinguishing toothed rollers that mesh and are in parallel contact with each other in a standby state; two main drive gears and auxiliary drive gears are located above and outside the cigarette-extinguishing toothed rollers and mesh with them; a space is left between them for the cigarette butt to enter; a spring seat is screwed onto the outer and inner positioning plates corresponding to the two ends of the main and auxiliary drive gears; a reduction motor is screwed onto the spring seat outside the inner positioning plate corresponding to the main drive gear; the rotation shaft of the reduction motor passes through the inner and outer positioning plates and the springs outside them. The base and the main drive gear are matched to drive the main drive gear to rotate. The auxiliary drive gear has a similar structure to the main drive gear, with its shaft mounted between the inner and outer positioning plates. At each of the two spring seats outside the outer positioning plate, there is a transmission gear that matches the head of the geared motor's rotating shaft and the head of the auxiliary drive gear's rotating shaft. The two gears are the same size and mesh with each other. This allows the geared motor to drive the main drive gear to rotate simultaneously, and through the two transmission gears, to drive the auxiliary drive gear to rotate synchronously, ultimately causing the two cigarette extinguishing tooth rollers to rotate in opposite directions. A bearing is mounted on the central shaft at each end of the two cigarette extinguishing tooth rollers. These bearings are located within the arc-shaped shaft holes of their corresponding inner and outer positioning plates. This allows... The two cigarette extinguishing toothed rollers are designed to rotate towards each other while having space to move in an arc shape to both sides. The bearings reduce friction, allowing the rollers to open and close freely during operation. The arc of the aforementioned arc-shaped shaft hole is centered on the central axis of the respective meshing main and auxiliary drive gears. This ensures that the axial distance between the two cigarette extinguishing toothed rollers and their respective meshing drive gears remains constant as they move in an arc shape to both sides. The ends of the central shafts of the cigarette extinguishing toothed rollers extend beyond the arc-shaped shaft hole and bearings, and each extended portion contacts a spring arm that applies force to the two cigarette extinguishing toothed rollers towards each other. The force is designed to allow the two cigarette extinguishing toothed rollers to achieve their working purpose. The main body of the spring is respectively connected to the aforementioned four... Using a spring seat as a carrier, a transverse cigarette-rubbing spring is fixed to the outer positioning wall plate directly below the two cigarette-extinguishing toothed rollers. Light source indicator lights and photoresistors are set on both sides directly above the two cigarette-extinguishing toothed rollers and their main and auxiliary drive gears. Both are electrically connected to the light control circuit board and its reduction motor. A cigarette inlet is fixed directly above both. The inner diameter of the cigarette inlet should be such that cigarette butts with a diameter of 7.7-7.8mm can pass through without obstruction. The distance between the two parallel fixed positioning wall plates is the same as the inner diameter of the cigarette inlet. The distance between the two cigarette-extinguishing toothed rollers and the two ends of the main and auxiliary drive gears is smaller than the distance between the two parallel fixed positioning wall plates, so that they can rotate between them without obstruction.

[0002] When the burning cigarette butt falls from the smoke inlet into the space between the light source indicator and the photoresistor, the burning part of the cigarette butt makes contact with the center of the meshing part of the two extinguishing tooth rollers. The light source is blocked by the waist and tail of the cigarette butt, causing a change in the resistance of the photoresistor. This activates the light control circuit board, starting the geared motor and driving the main drive gear to rotate. This, in turn, drives the auxiliary drive gear to rotate synchronously through the two transmission gears, ultimately causing the two extinguishing tooth rollers to rotate towards each other. The burning part of the cigarette butt is then caught by the two extinguishing tooth rollers. Due to the involvement of the burning part of the cigarette butt, the rotation of the two extinguishing tooth rollers is obstructed, forcing them to separate. The bearings matching the central shafts at both ends of each roller simultaneously move outwards in an arc-shaped movement within the arc-shaped shaft holes, with the central axis of the geared motor's rotating shaft and the central axis of the auxiliary drive gear as the center. The spring arms at the heads of the central shafts of the two extinguishing tooth rollers move accordingly, creating a compression space that causes the two extinguishing tooth rollers to... While rotating, the cigarette butt's burning part is pressed to extinguish it. When the extinguished cigarette butt head descends and contacts the transverse rubbing spring, the rubbing spring is pressed and tilts downward, producing an action similar to manually rubbing out a cigarette butt, further ensuring the cigarette butt is completely extinguished. At the same time, the cigarette butt falls along the tilting direction of the rubbing spring. When the tail of the cigarette butt descends and the photoresistor is illuminated again, the light control circuit board delays and cuts off power. This delay should be long enough for the cigarette butt to complete the extinguishing process and fall. After the tail of the cigarette butt descends and disengages from the two extinguishing tooth rollers, the two parallel extinguishing tooth rollers come together again under the compression of the spring arm and enter a standby state. The pressure of the spring arm should be sufficient to ensure that the two extinguishing tooth rollers can press the burning part of the cigarette butt to extinguish it, while the power of the two geared motors meets the working requirements.

[0003] Prototype verification shows that the geared motor in the technical solution of this invention can be a small motor with a speed of 30-60 revolutions per minute, a voltage of 6-12V, and a diameter of 25mm, which is sufficient to achieve the working purpose.

[0004] The advantages of this invention due to the adoption of the above technical solutions are that it has fewer components and lower cost. Since it can achieve its working purpose with a small, low-power geared motor, it has a wide range of battery configuration options. In addition to being used in public places, products based on the technical solutions of this invention can also be miniaturized for home use. Attached Figure Description

[0005] Figure 1 This is a schematic diagram of the internal structure of an embodiment of the present invention.

[0006] Figure 2 This is a top view schematic diagram of an embodiment of the present invention.

[0007] Figure 3 This invention and Figure 1 A schematic diagram of the rear view from the same perspective.

[0008] Figure 4 This is a schematic diagram of a partial side structure according to an embodiment of the present invention. Detailed Implementation To illustrate the structural features and specific functions of the present invention in detail, the following preferred examples are provided in conjunction with the accompanying drawings.

[0009] First embodiment of the present invention, for example Figure 1 , Figure 2 As shown, between the inner positioning wall panel (1) and the outer positioning wall panel (2) (refer to...) Figure 2 The two extinguishing toothed rollers (3) and (4) mesh in parallel, and at the same time, they also mesh with the main drive gear (5) and the auxiliary drive gear (6) on their respective outer upper sides, as shown in the figure. Figure 2 As shown, spring seats (7), (8), (9), and (10) are screwed onto the outer sides of the inner and outer positioning walls (1) and (2) at both ends of the main and auxiliary drive gears (5) and (6). The geared motor (11) is screwed onto the spring seat (7) on the outer side of the inner positioning wall (1). The rotating shaft of the geared motor (11) passes through the outer positioning wall (2) and the spring seat (8) outside it, and matches the main drive gear (5) to drive the main drive gear (5) to rotate. Its head (12) extends out of the outer side of the spring seat (8) on the outer side of the outer positioning wall (2). The auxiliary drive gear (6) is similar to the main drive gear (5) in that its shaft is mounted between the inner and outer positioning walls (1) and (2) and the spring seats (9) and (10) on the outer sides of both. The shaft head (13) extends out of the spring seat (9). Figure 1 As shown, the two drive gears (5) and (6) are symmetrical, with a cigarette butt channel (14) in the middle for the cigarette butt to pass through. On the head (12) of the rotating shaft of the aforementioned geared motor (11) and the head (13) of the central shaft at the same end of the auxiliary drive gear (6), there are transmission gears (15) and (16) respectively, which are the same size and mesh with each other. Figure 1 As shown, the two ends of the central shafts (17) and (18) of the two cigarette extinguishing toothed rollers (3) and (4) (only one end is shown in the figure) are matched with bearings (19) and (20). The bearings are located in the arc-shaped shaft holes (21) and (22) at the corresponding positions of the inner and outer positioning plates (1) and (2) (only one side is shown in the figure). The connecting arcs (23) and (24) of the arc-shaped shaft holes (21) and (22) are centered on the axis of the main and auxiliary drive gears (5) and (6), so as to ensure that the axial distance between the two cigarette extinguishing toothed rollers (3) and (4) and their respective meshing drive gears (5) and (6) remains unchanged in the open and closed state. The heads (25) and (26) of the central shafts (17) and (18) of the cigarette extinguishing toothed rollers (3) and (4) extend out of the arc-shaped shaft holes (21) and (22) and the bearings (19) and (20), as shown in the figure. Figure 1 , Figure 3 As shown (the cross-sectional section in the figure omits the structure between the two spring seats), each of its protruding parts contacts a spring arm (27) and (28) that causes the two extinguishing toothed rollers (3) and (4) to be subjected to opposing forces, as shown in the figure. Figure 2, Figure 3 As shown, spring bodies (29), (30), (31), and (32) are respectively fitted onto spring seats (7), (8), (9), and (10). Each spring seat (7), (8), (9), and (10) has a back cover (33), (34), (35), and (36) to prevent the spring from falling off. Figure 2 As shown (only one is shown in the figure, the rest are similar), there is a hook (37) on the edge of the back cover to hold the spring tail (38), as shown. Figure 1 , Figure 3 , Figure 4 As shown, directly below the two extinguishing toothed rollers (3) and (4), there is a transverse extinguishing spring (42) fixed to the outer positioning wall plate (2) by a bracket (39) and bolts (40) and (41). Figure 1 As shown, light source indicator lights and their carriers (43) and photoresistors and their carriers (44) are provided on both sides directly above the two extinguishing tooth rollers (3), (4) and their drive gears (5), (6). Both are electrically connected to the light control circuit board (not shown in the figure) and its geared motor (11). A smoke inlet horn (45) is fixed directly above both. The aforementioned positioning wall panels (1), (2) are embedded in the upper and lower fixed wall panels (46), (47). Figure 2 As shown, there is a parallel sandwich structure (48) and (49) on each side between the inner and outer positioning wall panels (1) and (2), which is fastened by two bolts and their nuts (50) and (51) to ensure that the inner and outer positioning wall panels (1) and (2) are in a parallel state, as shown. Figure 1 As shown, the cigarette butt (52) is in the initial insertion state. While the light source indicator (43) is blocked by the body of the cigarette butt (52), the photoelectric system is activated, driving the system to work. The burning part of the cigarette butt (52) is rolled between the two extinguishing toothed rollers (3) and (4) and squeezed out. Then, the cigarette butt (52) continues to descend. The extinguished part of the cigarette butt (52) contacts the lower transverse rubbing spring (42), causing the rubbing spring (42) to tilt downwards (as shown). Figure 4 (As shown in the dotted line), the whole process is similar to the action of manually rubbing a cigarette. The burning part of the cigarette butt (52) is squeezed by the two extinguishing toothed rollers (3) and (4) and the above-mentioned manual rubbing action, so as to ensure that the burning part of the cigarette butt (52) is completely extinguished. Finally, it falls down along the tilt direction of the rubbing spring (42). The delay power-off time of the photoelectric system is set to continue working until the cigarette butt falls after the photoresistor (44) receives light.

[0010] To extend standby time, infrared probes can be used instead of photoresistors.

Claims

1. A device for extinguishing a cigarette butt by squeezing out a gear, characterized in that; Between two parallel, fixed positioning plates, there are two interlocking, parallel extinguishing tooth rollers in standby mode. Two main drive gears and auxiliary drive gears are positioned above and outside each extinguishing tooth roller, meshing with them. A space is left between them for the cigarette butt to enter. A spring seat is screwed onto the outer and inner positioning plates corresponding to the ends of the main and auxiliary drive gears. A geared motor is screwed onto the spring seat outside the inner positioning plate corresponding to the main drive gear. The geared motor's rotating shaft passes through the outer positioning plate and its outer spring seat, matching the main drive gear to drive its rotation. The auxiliary drive gear and the main drive gear... The structure of the moving gear is similar, with the shaft frame mounted between the inner and outer positioning plates. At each of the two spring seats outside the outer positioning plate, there is a transmission gear that matches the head of the geared motor's rotating shaft and the head of the auxiliary drive gear's rotating shaft. The two gears are the same size and mesh with each other. This allows the geared motor to drive the main drive gear to rotate simultaneously, and through the two transmission gears, drive the auxiliary drive gear to rotate synchronously, ultimately causing the two cigarette extinguishing tooth rollers to rotate towards each other. A bearing is mounted on the central shaft at each end of the two cigarette extinguishing tooth rollers. These bearings are located within the arc-shaped shaft holes of the corresponding inner and outer positioning plates. This allows the two cigarette extinguishing tooth rollers to rotate towards each other while simultaneously moving to the sides. The arc-shaped movement space, and the reduced friction due to the bearings, allows the two cigarette extinguishing tooth rollers to open and close freely during operation. The arc of the aforementioned arc-shaped shaft hole is centered on the central axis of the respective meshing main and auxiliary drive gears. This ensures that the axial distance between the two cigarette extinguishing tooth rollers and their respective meshing drive gears remains constant as the two cigarette extinguishing tooth rollers move in an arc shape to both sides. The central shaft heads at both ends of the aforementioned cigarette extinguishing tooth rollers extend beyond the arc-shaped shaft hole and bearings, and each of their extended portions contacts a spring arm that applies force to the two cigarette extinguishing tooth rollers in opposite directions. The force is such that the two cigarette extinguishing tooth rollers can achieve their working purpose. The main body of the spring is supported by the aforementioned four spring seats. Below the cigarette extinguishing tooth roller is a transverse cigarette-rubbing spring fixed to the outer positioning wall plate. Above the two cigarette extinguishing tooth rollers and their main and auxiliary drive gears, light source indicator lights and photoresistors are installed on both sides. Both are electrically connected to the light control circuit board and its reduction motor. Above both are fixed a cigarette inlet horn. The inner diameter of the cigarette inlet horn should be such that cigarette butts with a diameter of 7.7-7.8mm can pass through without obstruction. The distance between the two parallel fixed positioning wall plates is the same as the inner diameter of the cigarette inlet horn. The distance between the two cigarette extinguishing tooth rollers and the two ends of the main and auxiliary drive gears is smaller than the distance between the two parallel fixed positioning wall plates, so that they can rotate without obstruction.

2. The device for automatically extinguishing cigarette butts according to claim 1, characterized in that; To extend standby time, infrared probes can be used instead of photoresistors.