Single-motor-driven toilet chair, garbage can and control thereof

Abstract

The application provides a single-motor driving toilet chair, a garbage can and control thereof. A transmission device is arranged, the transmission device comprising a driving motor, the driving motor driving a transmission shaft, the transmission shaft being provided with coaxially rotating first and second gear mechanisms, when the driving motor drives the transmission shaft to rotate forward / reverse, the first gear mechanism meshes with a driven gear set so as to make a garbage bag sleeved on a bag conveying wheel set convey downward, when the driving motor drives the transmission shaft to rotate reverse / forward, the second gear mechanism connects a scissor hinge unit and further drives the first guide plate to slide relative to the second guide plate so as to tighten the garbage bag, only one set of motor is needed to control the bag conveying device and the necking device, single-motor control is realized, the energy loss caused by multiple sets of motors is saved while the packing function of the toilet chair is met.

Description

Technical Field

[0001] This invention relates to a single-motor driven toilet chair, a trash can, and its control, and is applied in the field of toilet chairs. Background Technology

[0002] A commode chair is a seat that allows for convenient toilet use directly next to the bed. It is also portable for outdoor travel, avoiding situations where a toilet is far away and inconvenient to use. The commode chair does not require flushing and is easy to carry. With technological advancements, existing commode chairs can automatically pack excrement, collect it, and heat-seal it, solving problems of hygiene, potential for infection, and difficulty in changing bags. For example, the garbage bag shrinking mechanism, commode chair, garbage bin, and its control described in application number 202310084180.5 use a first motor to control a bag-feeding device to deliver the garbage bag downwards, and a second motor to drive a scissor hinge to achieve the shrinking and heat-sealing of the garbage bag. This invention achieves convenient garbage bag packing through control of the bag-feeding and shrinking device. However, because the commode chair automatically packs and collects waste frequently, using two sets of motors requires more energy consumption, which does not conform to the principles of energy conservation and environmental protection. This application addresses these issues by designing a single-motor driven commode chair. Summary of the Invention

[0003] This invention provides a single-motor driven toilet chair, trash can, and its control system, which can effectively solve the above-mentioned problems.

[0004] This invention is implemented as follows:

[0005] A single-motor driven toilet chair, comprising:

[0006] The toilet seat body includes a garbage bag storage opening and a discharge opening;

[0007] A garbage bag fixing device includes a hollow column disposed at the garbage bag storage opening, the hollow column being used to fix the garbage bag;

[0008] The bag feeding device includes a driven gear set disposed on both sides below the hollow column and a bag feeding wheel set driven by the driven gear set;

[0009] The pinching device includes a scissor hinge unit disposed below the bag feeding device, a first guide plate disposed on the scissor hinge unit, and a second guide plate disposed opposite to the first guide plate; and

[0010] The transmission device includes a drive motor that drives a transmission shaft. A first gear mechanism and a second gear mechanism are mounted on the transmission shaft and rotate coaxially. When the drive motor drives the transmission shaft to rotate forward / reverse, the first gear mechanism engages with the driven gear set, thereby conveying the garbage bag fitted on the bag feeding wheel set downward. When the drive motor drives the transmission shaft to rotate in reverse / forward, the second gear mechanism connects to the scissor hinge unit, thereby driving the first guide plate to slide relative to the second guide plate, thereby tightening the garbage bag.

[0011] The beneficial effects of this invention are as follows: By setting up a transmission device, which includes a drive motor that drives a transmission shaft, and a first gear mechanism and a second gear mechanism that rotate coaxially on the transmission shaft, when the drive motor drives the transmission shaft to rotate forward / reverse, the first gear mechanism meshes with the driven gear set, thereby conveying the garbage bag sleeved on the bag feeding wheel set downward; when the drive motor drives the transmission shaft to rotate in reverse / forward, the second gear mechanism connects to the scissor hinge unit, thereby driving the first guide plate to slide relative to the second guide plate, thereby tightening the garbage bag. Only one set of motors is needed to control the bag feeding device and the shrinking device, realizing single-motor control, while meeting the function of packing the toilet seat, saving the energy consumption caused by multiple sets of motors. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the toilet chair structure provided in Embodiment 1 of the present invention.

[0014] Figure 2 This is a schematic diagram of the exploded structure provided in Embodiment 1 of the present invention.

[0015] Figure 3 This is a schematic diagram of the garbage bag fixing device provided in Embodiment 1 of the present invention.

[0016] Figure 4 This is a schematic diagram of the installation structure of the garbage bag fixing device provided in Embodiment 1 of the present invention.

[0017] Figure 5-6 This is a schematic diagram of the transmission device connecting the bag feeding device provided in Embodiment 1 of the present invention.

[0018] Figure 7 This is a schematic diagram of the forward rotation drive bag feeding device provided in Embodiment 1 of the present invention.

[0019] Figure 8 This is a schematic diagram of the structure of the reverse drive bag feeding device provided in Embodiment 1 of the present invention.

[0020] Figure 9-10 This is a schematic diagram of the transmission device connected to the narrowing device provided in Embodiment 1 of the present invention.

[0021] Figure 11 This is an exploded structural diagram of the transmission device connecting the constriction device provided in Embodiment 1 of the present invention.

[0022] Figure 12 This is a schematic diagram of the transmission device reverse drive narrowing device provided in Embodiment 1 of the present invention.

[0023] Figure 13 This is a schematic diagram of the forward rotation drive narrowing device provided in Embodiment 1 of the present invention.

[0024] Figure 14 This is a schematic diagram of the scissor hinge unit provided in Embodiment 1 of the present invention.

[0025] Figure 15 This is an exploded structural diagram of the scissor hinge unit provided in Embodiment 1 of the present invention.

[0026] Figure 16 This is a schematic diagram of the tension spring assembly provided in Embodiment 1 of the present invention.

[0027] Figure 17 This is a schematic diagram of the heat-sealing bag opening device provided in Embodiment 1 of the present invention.

[0028] Figure 18 This is a schematic diagram of the trash can structure provided in Embodiment 2 of the present invention. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] Example 1:

[0032] Reference Figures 1-2 As shown, a single-motor driven toilet chair includes: a toilet chair body 1, including a garbage bag storage opening and a discharge opening; and a collection device 2 disposed at the lower part of the toilet chair body 1. The collection device 2 includes: a garbage bag fixing device 21, including a hollow column 211 disposed at the garbage bag storage opening, the hollow column 211 being used to fix garbage bags 3; and a bag feeding device 22, including driven gear sets 221 disposed on both sides below the hollow column 211 and a bag feeding wheel set 222 driven by the driven gear sets 221. The narrowing device 23 includes a scissor hinge unit 231 disposed below the bag feeding device 22, a first guide plate 232 disposed on the scissor hinge unit 231, and a second guide plate 233 disposed opposite to the first guide plate 232; and a transmission device 24 including a drive motor 241, the drive motor 241 driving a transmission shaft 2413, the transmission shaft 2413 being provided with a first gear mechanism 242 and a second gear mechanism 243 coaxially rotating on the transmission shaft 2413. When the drive motor 241 drives the transmission shaft 2413 to rotate forward / reverse, the first gear mechanism 242 meshes with the driven gear set 221, thereby conveying the garbage bag 3 sleeved on the bag feeding wheel set 222 downward; when the drive motor 241 drives the transmission shaft 2413 to rotate in reverse / forward, the second gear mechanism 243 connects to the scissor hinge unit 231, thereby driving the first guide plate 232 to slide relative to the second guide plate 233, thereby tightening the garbage bag 3. The invention also includes a heat-sealing bag opening device 25, located at the bottom of the shrinking assembly 24, for sealing the garbage bag 3. This commode chair can automatically feed bags, collect waste, pack it, and heat-seal excrement. Furthermore, the garbage bag shrinking commode chair is portable, suitable for outdoor use or use by children and the elderly. This invention requires only one set of motors to control the bag feeding device 22 and the shrinking device 23, achieving single-motor control. While fulfilling the commode chair's packing function, it saves energy consumption from multiple motors, effectively reduces size and weight, facilitates outdoor transport or use by patients and the elderly, and also lowers manufacturing costs.

[0033] Reference Figures 3-4As shown, the garbage bag fixing device 21 includes: a hollow column 211 for holding a hollow garbage bag 3; a base 212 extending horizontally outward from the bottom end of the hollow column 211, and the base 212 is fixed to the toilet seat body 1; one end of the garbage bag 3 is fitted onto the outside of the hollow column 211, and then a ring fixing ring 213 is used to fit onto the outside of the hollow column 211, the opening of the garbage bag is located between the ring fixing ring 213 and the hollow column 211, and then the toilet seat ring 214 is fastened to strengthen the fixation and prevent the garbage bag 3 from slipping out of the hollow column 211 when using the toilet. The garbage bag fixing device 21 further includes a sensor (not shown in the figure), which is set on the base 212 for detecting the supply status of the garbage bag 3. Preferably, the thickness of the garbage bag 3 consumable material is 0.005mm to 0.2mm; more preferably, the thickness of the garbage bag 3 consumable material is 0.01mm to 0.05mm; in this embodiment, the thickness of the garbage bag 3 consumable material is 0.0035mm.

[0034] Reference Figures 5-8As shown, the bag feeding device 22 is located below the garbage bag fixing device 21, and includes a driven gear set 221 and a bag feeding wheel set 222 driven by the driven gear set 221. The bag feeding device 22 includes symmetrically arranged mounting housings 2210. The first gear mechanism 242 is disposed within the mounting housing 2210. The driven gear set 221 includes a first driven gear 2211 and a second driven gear 2212. A transmission gear is also provided between the second driven gear 2212 and the gear 244 for transmission. The bag feeding wheel set 222 includes a first driven wheel 2221 disposed on the transmission gear and a second driven wheel 2222 disposed on the second driven gear 2212. The first driven wheel 2221 and the second driven wheel 2222 abut against and fix the garbage bag 3. The first driving wheel 2251 and the first driven wheel 2252 are disposed on the same plane. A torsion spring assembly (not shown in the figure) is provided on the driven gear set 221. The torsion spring assembly includes a straight slot at the end of the mounting housing 2210 away from the first gear mechanism 242. The first driven wheel 2221 is connected to the first driven gear 2211 through the straight slot via a rotating shaft. An arc-shaped stop is sleeved on the rotating shaft. A second torsion spring is provided below the rotating shaft. The second torsion spring abuts against the arc-shaped stop to achieve a small displacement of the first driven wheel 2221, thereby fixing the garbage bag 3. The mounting housing 2210 also includes a torsion spring stop provided below the straight slot. One end of the second torsion spring abuts against the arc-shaped stop. The torsion spring stop block, with its other end abutting against the arc-shaped stop block, is used during the bagging process. Since a bagging correction device is needed to clamp one end of the garbage bag 3 into the bag feeding wheel assembly 222, the torsion spring assembly allows the driven gear to achieve a slight downward displacement, creating a gap between the first driven wheel 2221 and the second driven wheel 2222. This allows the bagging correction device to enter between the first driven wheel 2221 and the second driven wheel 2222, that is, to place the garbage bag 3 into the bag feeding wheel assembly 222. Then, the bagging correction device is removed, and the second torsion spring drives the first driven wheel 2221 to reset, and the bag feeding wheel assembly 222 clamps the garbage bag 3.

[0035] Reference Figures 5-8As shown, the transmission device 24 includes a drive motor 241, which drives a transmission shaft 2413. In this embodiment, the drive motor 241 is connected to a driving gear 2411, which is connected to a driven gear 2412. The driven gear 2412 is mounted on the transmission shaft 2413 and fixed with bolts, allowing the driven gear 2412 to rotate coaxially with the transmission shaft 2413. The first gear mechanism 242 includes first gears 2421 mounted on both sides of the transmission shaft 2413. The mounting housing 2210 has an arc-shaped sliding groove 2231 on its sidewall, and a slidable first sliding rod 2422 is mounted within the arc-shaped sliding groove 2231. The first sliding rod 2422 is connected to a first sliding gear 2423 that meshes with the first gear 2421. (Refer to...) Figure 7 As shown, when the drive motor 241 drives the transmission shaft 2413 to rotate clockwise, the first gear 2421 drives the first sliding gear 2423 to slide upward along the arc-shaped sliding groove 2231. When the first sliding gear 2423 reaches the top of the arc-shaped sliding groove 2231, it engages the driven gear set 221, thereby driving the bag-feeding wheel set 222 to convey the garbage bag 3 downward. (Refer to...) Figure 8 As shown, when the drive motor 241 drives the transmission shaft 2413 to reverse (rotate counterclockwise), the first gear 2421 drives the first sliding gear 2423 to slide downward along the arc-shaped sliding groove 2231. When the first sliding gear 2423 moves away from the driven gear set 221, the first gear 2421 drives the first sliding gear 2423 to rotate freely, causing the bag feeding wheel set 222 to stop conveying the garbage bag 3.

[0036] The mounting housing 2210 has a through hole on its side, which connects to a rotating rod 2424. The rotating rod 2424 is connected to a gear locking block 2425 that can rotate around the axis of the through hole. One end of the gear locking block 2425 is a tooth 2425a, and the other end is a groove 2425b. The first sliding rod 2422 is disposed in the groove 2425b, causing the gear locking block 2425 to rotate as the first sliding gear 2423 slides. When the first sliding gear 2423 slides upward along the arc-shaped sliding groove 2231, the tooth 2425a rotates to a side away from the driven gear set 221. When the arc-shaped sliding groove 2231 slides downward, the tooth 2425a rotates to mesh with the driven gear set 221, thereby fixing the driven gear set 221 and locking it, preventing the driven gear set 221 from displacing. To achieve the operation of the bag feeding device 22 and the closing device 23 driven by a single motor, this invention uses the meshing or disengagement of gears. However, when driving the closing device 23, the first sliding gear 2423 moves away from the driven gear set 221. The driven gear set 221 is affected by the gravity of the garbage bag 3 and continues to drive the garbage bag 3 downward. In the subsequent sealing process, due to the unstable movement of the garbage bag 3, the sealing point melts and breaks, resulting in the exposure of feces or garbage, which affects hygiene. Therefore, the gear locking block 2425 is set. When the drive motor 2413 drives the closing device 23, the gear locking block 2425 can effectively limit the displacement of the driven gear set 221, avoiding the risk of the garbage bag 3 melting or breaking during sealing.

[0037] Reference Figures 9-13 As shown in the figure, the second gear mechanism 243 includes a second gear 2431 disposed in the middle of the transmission shaft 2413. A sliding block 2432 is installed at the bottom of the hollow column 211. The sliding block 2432 is provided with a sliding groove 2433. A rotatable second sliding rod 2434 is disposed in the sliding groove 2433. The second sliding rod 2434 is connected to a second sliding gear 2435 that meshes with the second gear 2431. A mounting post 215 extends vertically downward from the side wall of the hollow column 211. A fixing rod 2151 is disposed in the mounting post 215. A rack 249 is disposed below the hollow column 211. The rack 249 is provided with a sliding groove 2491 adapted to the fixing rod 2151. The fixing rod 2151 passes through the sliding groove 2491 and connects to the scissor hinge unit 231. The rack 249 is connected to the scissor hinge unit 231. (Refer to...) Figure 12As shown, when the drive motor 241 drives the transmission shaft 2413 to reverse (rotate counterclockwise), the second gear 2431 drives the second sliding gear 2431 to slide downwards along the sliding groove 2433. The second sliding gear 2435 meshes with the rack 249, thereby driving the scissor hinge unit 231 to extend. The first guide plate 232 slides relative to the second guide plate 233, thereby tightening the garbage bag 3. (Refer to...) Figure 13 As shown, when the drive motor 241 drives the transmission shaft 2413 to rotate clockwise, the second gear 2431 drives the second sliding gear 2435 to slide upward along the sliding groove 2433. The second gear 2431 drives the second sliding gear 2435 to rotate freely, causing the scissor hinge unit 231 to stop extending.

[0038] Reference Figures 14-16 As shown, the scissor hinge unit 231 includes 2 to 6 scissor groups, preferably 3 to 5 scissor groups. In one embodiment, the scissor hinge unit 231 includes 4 scissor groups. Specifically, the first scissor group 2311 includes two first scissor arms 2311a, and one end of the first scissor arm 2311a is provided with a first through hole 2311b. The fixing rod 2151 passes through the sliding groove 2491 and connects to the first through hole 2311b.

[0039] The second scissor lift assembly 2312 includes two intersecting second scissor lift arms 2312a, and each second scissor lift arm 2312a has a second through hole 2312b at the intersection point; one end of each second scissor lift arm 2312a is rotatably connected to the other end of each first scissor lift arm 2311a.

[0040] The third scissor lift assembly 2313 includes two intersecting third scissor lift arms 2313a, and each third scissor lift arm 2313a has a third through hole 2313b at its intersection point; one end of each third scissor lift arm 2313a is rotatably connected to the other end of each second scissor lift arm 2312a.

[0041] The fourth scissor lift assembly 2314 includes two intersecting fourth scissor lift arms 2314a, and each intersection of the fourth scissor lift arms 2314a is provided with a fourth elongated through hole 2314b; one end of each fourth scissor lift arm 2314a is rotatably connected to the other end of each third scissor lift arm 2313a, the fourth elongated through hole 2314b is fixed with bolts, and the other end of the fourth scissor lift arm 2314a is connected to the first guide plate 232. Based on the working principle of the scissor hinge, in order to achieve a rotatable connection between the end of the fourth scissor arm 2314a away from the third scissor assembly 2313 and the first guide plate 232, and to increase the movement stability of the scissor hinge unit 231, a fourth elongated through hole 2314b is provided to realize the angle change between the fourth scissor arms 2314a, thereby realizing the movement of the scissor hinge unit 231. The fourth scissor arm 2314a also has a limiting function, restricting the movement of the scissor hinge unit 231 within the length range of the fourth elongated through hole 2314b. The stability of the scissor hinge unit 231 is used to ensure the stability of the reciprocating motion. The scissor hinge unit 231 can extend its range with the swing of the rack 249, reducing energy consumption and improving efficiency.

[0042] The rack 249 is provided with bolt holes 2492, which are connected to the second through hole 2312b and fixed with bolts. One end of the second scissor arm 2312a is fixed to the other end of the first scissor arm 2311a with a first stud, and one end of the third scissor arm 2313a is fixed to the other end of the second scissor arm 2312a with a second stud. The first stud 2315 and the second stud 2316 on the same side of the scissor hinge unit 231 are fixed together with a tension spring assembly 2317. Since the present invention can realize the movement of the bag feeding device 22 and the closing device 23 with a single motor, the scissor hinge unit 231 cannot be closed and retracted after it extends to close the garbage bag 3. Therefore, a tension spring assembly 2317 is required to retract the scissor hinge unit 231. In one embodiment, the tension spring assembly 2317 includes a housing and an elastic element disposed in the housing. When the scissor hinge unit 231 extends, the elastic element is stretched, and the scissor hinge unit 231 is retracted by the rebound of the elastic element.

[0043] In another embodiment, refer to Figure 16As shown, the tension spring assembly 2317 includes a spring element 2317a, which is a progressive pitch spring. Mounting housings 2317b are provided at both ends of the tension spring element 2317a. A rotatable support shaft 2317c is provided inside the mounting housing 2317b near the larger pitch end of the spring element 2317a. Torsion springs 2317d are provided at both ends of the support shaft 2317c. An elastic rope 2317e is wound around the support shaft 2317c and connects to the spring element 2317a. A retaining ring 2317f is provided at the end of the mounting housing 2317b away from the spring element 2317a. The retaining rings 2317f at both ends connect to the first stud 2315 and the second stud 2316. Since the scissor hinge unit 23 is a range-extended structure, the tension spring assembly 2317 may exceed its stretch limit during use, reducing its service life. Therefore, by cooperating with the tension spring 2317a and the elastic cord 2317e, the maximum distance between the two mounting housings 2317b is made less than the maximum stretch limit of the tension spring 2317a. This effectively avoids premature loss of elasticity when the tension spring 2317a is stretched too long, thus improving the durability of the tension spring body.

[0044] Both the first guide plate 232 and the second guide plate 233 have a double-layer structure. The first guide plate 232 includes an upper clamping plate 2321 and a lower clamping plate 2322. The second guide plate 233 is provided with an upper clamping plate guide groove 2331 and a lower clamping plate guide groove 2332 that are adapted to the upper clamping plate 2321 and the lower clamping plate 2322, respectively. The upper clamping plate 2321 is slidably connected to the upper clamping plate guide groove 2331 to achieve upper tightening of the garbage bag opening. The lower clamping plate 2322 is slidably connected to the lower clamping plate guide groove 2332 to achieve lower tightening of the garbage bag opening, thereby achieving more precise sealing of the garbage bag 3. Furthermore, the guiding function of the first guide plate 232 and the second guide plate 233 increases the stability of the garbage bag sealing.

[0045] Reference Figure 17As shown, the heat-sealing bag opening device 25 includes: a first heat-sealing blade 251 and a second heat-sealing blade 252 disposed opposite to the first heat-sealing blade 251. The second heat-sealing blade 252 is used to move towards the first heat-sealing blade 251 under the drive of the transmission device 24, thereby achieving heat sealing of the condensed garbage bag opening. Each heat-sealing blade includes a heat-sealing blade base plate 2511 and a heat-sealing blade edge 2512 vertically connected to the heat-sealing blade base plate 2511. The first heat-sealing blade 251 is disposed between the upper clamping plate guide groove 2331 and the lower clamping plate guide groove 2332 of the second guide plate 233. The second heat-sealing blade 252 is fixed between the upper clamping plate 2321 and the lower clamping plate 2322 of the first guide plate 232. The heat-sealing device further includes a heating wire (not shown in the figure), which is disposed on the inner side of the heat-sealing blade base plate 2511.

[0046] The present invention also includes a control method for a single-motor driven commode chair, comprising the following steps:

[0047] S10: Fix the garbage bag 3 to the garbage bag fixing device 21;

[0048] S20: When the toilet use is finished, the drive motor 241 rotates forward / reverse, and the bag feeding device 22 pulls the garbage bag 3 out from the garbage bag fixing device 21 and conveys it downward:

[0049] S30: The bag is conveyed a predetermined distance via the bag feeding device 22;

[0050] S40: The drive motor 241 rotates in reverse / forward, and performs shrinking and heat sealing through the shrinking device 23 and the heat sealing bag opening device 25;

[0051] S50: The drive motor 241 rotates forward / reverse and then transmits the bag a predetermined distance again through the bag feeding device 22.

[0052] Example 2:

[0053] Reference Figure 18 As shown, another embodiment of the present invention also includes a single-motor driven trash can, comprising:

[0054] The trash can body 4 includes a trash bag storage opening and a discharge opening. The shape and structure of the trash can body 4 are not limited and can be selected according to actual needs. For example, it can be a cuboid or a cube. In one embodiment, the trash can body 4 is a cuboid, and the trash bag storage opening is located at the top of the cuboid, while the discharge opening is located on the side wall of the cuboid (not shown in the figure).

[0055] A garbage bag fixing device 21 is provided at the garbage bag storage opening for storing hollow garbage bags 3;

[0056] The bag feeding device 22 is located below the garbage bag fixing device 21 and includes a driven gear set 221 and a bag feeding wheel set 222 driven by the driven gear set 221. The bag feeding device 22 is used to convey the garbage bag 3 downward.

[0057] The pinching device 23, disposed below the bag feeding device, includes a scissor hinge unit 231 and a first guide plate 232 disposed on the scissor hinge unit 231, and a second guide plate 233 disposed opposite to the first guide plate; and

[0058] The transmission device 24 includes a forward and reverse drive motor 241, which drives a first gear mechanism 242 and a second gear mechanism 243 arranged in the opposite direction to the first gear mechanism 242. When the forward and reverse drive motor 241 rotates forward / reverse, the first gear mechanism 242 drives the driven gear set 221 to convey the garbage bag 3 sleeved on the bag feeding device 22 downward. When the forward and reverse drive motor 241 rotates in reverse / forward, the second gear mechanism 243 drives the scissor hinge unit 231, which in turn drives the first guide plate 232 to slide relative to the second guide plate 233 to tighten the garbage bag 3.

[0059] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A single-motor driven commode chair, characterized in that, include: The toilet seat body (1) includes a garbage bag storage port and a discharge port; The garbage bag fixing device (21) includes a hollow column (211) disposed at the garbage bag storage opening. The hollow column (211) is used to fix the garbage bag (3). The bag feeding device (22) includes a driven gear set (221) disposed on both sides below the hollow column (211) and a bag feeding wheel set (222) driven by the driven gear set (221). The pinching device (23) includes a scissor hinge unit (231) disposed below the bag feeding device (22), a first guide plate (232) disposed on the scissor hinge unit (231), and a second guide plate (233) disposed opposite to the first guide plate (232); and The transmission device (24) includes a drive motor (241), which drives a transmission shaft (2413). A first gear mechanism (242) and a second gear mechanism (243) are coaxially rotating on the transmission shaft (2413). The first gear mechanism (242) meshes with a driven gear set (221) to convey the garbage bag (3) sleeved on the bag feeding wheel set (222) downward. The second gear mechanism (243) is connected to a scissor hinge unit (231) to drive the first guide plate (232) to slide relative to the second guide plate (233) to tighten the garbage bag (3). The driven gear set (221) includes a mounting housing (2210). The first gear mechanism (242) includes a first gear (2421) on both sides of the transmission shaft (2413). The side wall of the mounting housing (2210) is provided with an arc-shaped sliding groove (2231). A slidable first sliding rod is provided in the arc-shaped sliding groove (2231). 2422), the first sliding rod (2422) is connected to the first sliding gear (2423) meshing with the first gear (2421); when the drive motor (241) drives the transmission shaft (2413) to rotate forward, the first gear (2421) drives the first sliding gear (2423) to slide upward along the arc-shaped sliding groove (2231), and the first sliding gear (2423) meshes with the driven gear set (221) to drive the bag feeding wheel set (222) to convey the garbage bag (3) downward; when the drive motor (241) drives the transmission shaft (2413) to rotate in reverse, the first gear (2421) drives the first sliding gear (2423) to slide downward along the arc-shaped sliding groove (2231), and the first sliding gear (2423) moves away from the driven gear set (221), and the first gear (2421) drives the first sliding gear (2423) to rotate freely so that the bag feeding wheel set (222) stops conveying the garbage bag (3). The mounting housing (2210) has a through hole on its side, which connects to a rotating rod (2424). The rotating rod (2424) connects to a gear locking block (2425) that can rotate around the axis of the through hole. One end of the gear locking block (2425) is a tooth (2425a), and the other end is a groove (2425b). The first sliding rod (2422) is disposed in the groove (2425b) to make the gear locking block (2425a) rotate around the axis of the through hole. 2425) Rotates as the first sliding gear (2423) slides. When the first sliding gear (2423) slides upward along the arc-shaped sliding groove (2231), the tooth (2425a) rotates to the side away from the driven gear set (221). When the arc-shaped sliding groove (2231) slides downward, the tooth (2425a) rotates to mesh with the driven gear set (221) to fix the driven gear set (221). The second gear mechanism (243) includes a second gear (2431) disposed in the middle of the transmission shaft (2413). A sliding block (2432) is installed at the bottom of the hollow column (211). The sliding block (2432) is provided with a sliding groove (2433). A rotatable second sliding rod (2434) is disposed in the sliding groove (2433). The second sliding rod (2434) is connected to a second sliding gear (2435) that meshes with the second gear (2431). A mounting post (215) extends vertically downward from the side wall of the hollow column (211). A fixing rod (2151) is disposed in the mounting post (215). A rack (249) is disposed below the hollow column (211). The rack (249) is provided with a sliding groove (2491) adapted to the fixing rod (2151). The fixing rod (2151) passes through the sliding groove (2491) and connects to the scissor hinge. Chain unit (231), the rack (249) is connected to the scissor hinge unit (231); when the drive motor (241) drives the transmission shaft (2413) to reverse, the second gear (2431) drives the second sliding gear (2431) to slide downward along the sliding groove (2433), the second sliding gear (2431) meshes with the rack (249) and thus drives the scissor hinge unit (231) to extend, the first guide plate (232) slides relative to the second guide plate (233) to tighten the garbage bag (3); when the drive motor (241) drives the transmission shaft (2413) to rotate forward, the second gear (2431) drives the second sliding gear (2431) to slide upward along the sliding groove (2433), the second gear (2431) drives the second sliding gear (2435) to rotate freely so that the scissor hinge unit (231) stops extending.

2. A single-motor driven commode chair according to claim 1, characterized in that, The scissor hinge unit (231) includes: The first scissor lift assembly (2311) includes two first scissor lift arms (2311a), and one end of the first scissor lift arm (2311a) is provided with a first through hole (2311b). The fixing rod (2151) passes through the slide groove (2491) and connects to the first through hole (2311b). The second scissor lift assembly (2312) includes two intersecting second scissor lift arms (2312a), and each second scissor lift arm (2312a) has a second through hole (2312b) at the intersection point; one end of each second scissor lift arm (2312a) is rotatably connected to the other end of each first scissor lift arm (2311a); The third scissor lift assembly (2313) includes two intersecting third scissor lift arms (2313a), and each third scissor lift arm (2313a) has a third through hole (2313b) at the intersection point; one end of each third scissor lift arm (2313a) is rotatably connected to the other end of each second scissor lift arm (2312a); The fourth scissor lift assembly (2314) includes two intersecting fourth scissor lift arms (2314a), and each fourth scissor lift arm (2314a) has a fourth elongated through hole (2314b) at its intersection point; one end of each fourth scissor lift arm (2314a) is rotatably connected to the other end of each third scissor lift arm (2313a), the fourth elongated through hole (2314b) is fixed with bolts, and the other end of the fourth scissor lift arm (2314a) is connected to the first guide plate (232). The rack (249) is provided with bolt holes (2492), which are connected to the second through hole (2312b) and fixed with bolts.

3. A single-motor driven commode chair according to claim 2, characterized in that, One end of the second scissor arm (2312a) is fixed to the other end of the first scissor arm (2311a) using a first stud (2315), and one end of the third scissor arm (2313a) is fixed to the other end of the second scissor arm (2312a) using a second stud (2316). The first stud (2315) and the second stud (2316) on the same side of the scissor hinge unit (231) are fixed together by a tension spring assembly (2317).

4. A single-motor driven commode chair according to claim 3, characterized in that, The tension spring assembly (2317) includes a spring element (2317a), which is a progressive pitch spring. The tension spring element (2317a) has mounting housings (2317b) at both ends. A rotatable support shaft (2317c) is provided in the mounting housing (2317b) near the large pitch end of the spring element (2317a). Torsion springs (2317d) are provided at both ends of the support shaft (2317c). An elastic rope (2317e) is wound around the support shaft (2317c). The elastic rope (2317e) is connected to the spring element (2317a). A retaining ring (2317f) is provided at the end of the mounting housing (2317b) away from the spring element (2317a). The retaining rings (2317f) at both ends are connected to the first stud (2315) and the second stud (2316).

5. A control method for a single-motor driven commode chair as described in any one of claims 1-4, characterized in that, Includes the following steps: S10: Fix the garbage bag (3) to the garbage bag fixing device (21); S20: When the toilet use is finished, the drive motor (241) rotates forward / reverse, and the bag feeding device (22) pulls the garbage bag (3) out from the garbage bag fixing device (21) and conveys it downward: S30: The bag is conveyed a predetermined distance via the bag feeding device (22); S40: The drive motor (241) rotates in reverse / forward, and performs shrinking and heat sealing through the shrinking device (23) and the heat sealing bag opening device (25); S50: The drive motor (241) rotates forward / reverse and then transmits the bag to a predetermined distance again through the bag feeding device (22).

6. A single-motor driven trash can, characterized in that, include: The trash can body (4) includes a trash bag storage opening and a discharge opening; The garbage bag fixing device (21) includes a hollow column (211) disposed at the garbage bag storage opening. The hollow column (211) is used to fix the garbage bag (3). The bag feeding device (22) includes a driven gear set (221) disposed on both sides below the hollow column (211) and a bag feeding wheel set (222) driven by the driven gear set (221). The pinching device (23) includes a scissor hinge unit (231) disposed below the bag feeding device (22) and a first guide plate (232) disposed on the scissor hinge unit (231), and a second guide plate (233) disposed opposite to the first guide plate (232); and The transmission device (24) includes a drive motor (241), which drives a transmission shaft (2413). A first gear mechanism (242) and a second gear mechanism (243) are coaxially rotating on the transmission shaft (2413). The first gear mechanism (242) meshes with a driven gear set (221) to convey the garbage bag (3) sleeved on the bag feeding wheel set (222) downward. The second gear mechanism (243) is connected to a scissor hinge unit (231) to drive the first guide plate (232) to slide relative to the second guide plate (233) to tighten the garbage bag (3). The driven gear set (221) includes a mounting housing (2210). The first gear mechanism (242) includes a first gear (2421) on both sides of the transmission shaft (2413). The side wall of the mounting housing (2210) is provided with an arc-shaped sliding groove (2231). A slidable first sliding rod is provided in the arc-shaped sliding groove (2231). 2422), the first sliding rod (2422) is connected to the first sliding gear (2423) meshing with the first gear (2421); when the drive motor (241) drives the transmission shaft (2413) to rotate forward, the first gear (2421) drives the first sliding gear (2423) to slide upward along the arc-shaped sliding groove (2231), and the first sliding gear (2423) meshes with the driven gear set (221) to drive the bag feeding wheel set (222) to convey the garbage bag (3) downward; when the drive motor (241) drives the transmission shaft (2413) to rotate in reverse, the first gear (2421) drives the first sliding gear (2423) to slide downward along the arc-shaped sliding groove (2231), and the first sliding gear (2423) moves away from the driven gear set (221), and the first gear (2421) drives the first sliding gear (2423) to rotate freely so that the bag feeding wheel set (222) stops conveying the garbage bag (3). The mounting housing (2210) has a through hole on its side, which connects to a rotating rod (2424). The rotating rod (2424) connects to a gear locking block (2425) that can rotate around the axis of the through hole. One end of the gear locking block (2425) is a tooth (2425a), and the other end is a groove (2425b). The first sliding rod (2422) is disposed in the groove (2425b) to make the gear locking block (2425a) rotate around the axis of the through hole. 2425) Rotates as the first sliding gear (2423) slides. When the first sliding gear (2423) slides upward along the arc-shaped sliding groove (2231), the tooth (2425a) rotates to the side away from the driven gear set (221). When the arc-shaped sliding groove (2231) slides downward, the tooth (2425a) rotates to mesh with the driven gear set (221) to fix the driven gear set (221). The second gear mechanism (243) includes a second gear (2431) disposed in the middle of the transmission shaft (2413). A sliding block (2432) is installed at the bottom of the hollow column (211). The sliding block (2432) is provided with a sliding groove (2433). A rotatable second sliding rod (2434) is disposed in the sliding groove (2433). The second sliding rod (2434) is connected to a second sliding gear (2435) that meshes with the second gear (2431). A mounting post (215) extends vertically downward from the side wall of the hollow column (211). A fixing rod (2151) is disposed in the mounting post (215). A rack (249) is disposed below the hollow column (211). The rack (249) is provided with a sliding groove (2491) adapted to the fixing rod (2151). The fixing rod (2151) passes through the sliding groove (2491) and connects to the scissor hinge. Chain unit (231), the rack (249) is connected to the scissor hinge unit (231); when the drive motor (241) drives the transmission shaft (2413) to reverse, the second gear (2431) drives the second sliding gear (2431) to slide downward along the sliding groove (2433), the second sliding gear (2431) meshes with the rack (249) and thus drives the scissor hinge unit (231) to extend, the first guide plate (232) slides relative to the second guide plate (233) to tighten the garbage bag (3); when the drive motor (241) drives the transmission shaft (2413) to rotate forward, the second gear (2431) drives the second sliding gear (2431) to slide upward along the sliding groove (2433), the second gear (2431) drives the second sliding gear (2435) to rotate freely so that the scissor hinge unit (231) stops extending.

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