Single-motor driven toilet chair and control method thereof

Abstract

The present invention provides a single-motor-driven toilet chair, comprising: a bag-feeding device disposed below a garbage bag fixing device; a necking device disposed below the bag-feeding device, comprising a scissor-shaped hinge unit, a first guide plate disposed on the scissor-shaped hinge unit, and a second guide plate disposed opposite the first guide plate; and a transmission device comprising a forward and reverse drive motor, the forward and reverse drive motor driving a first gear mechanism and a second gear mechanism disposed opposite the first gear mechanism. When the forward and reverse drive motor rotates forward or reverse, the first gear mechanism drives the gear unit to convey the garbage bag attached to the bag-feeding device downward; when the forward and reverse drive motor rotates reverse or forward, the second gear mechanism drives the scissor-shaped hinge unit, thereby causing the first guide plate to slide relative to the second guide plate. The present invention can achieve single-motor control, saving energy loss associated with multiple motors.

Description

Technical Field

[0001] The invention relates to a single-motor driven commode chair and a control method thereof, and is applied to the field of commode chairs. Background Art

[0002] The commode chair is designed for the elderly and disabled, and can be used directly at the bedside. It avoids the risk of falling when the elderly and disabled go to the toilet at night when no one is watching. It can also be carried when traveling outdoors to avoid the situation where the toilet is far away and cannot be used in time. The commode chair does not need to be flushed and is easy to carry. With the updating and development of technology, the existing commode chair can automatically pack excrement, automatically collect and heat-seal it to solve the problems of unsanitary and easy infection and difficulty in changing bags. For example, the garbage bag shrinking movement with application number 202310084180.5 , a toilet chair, a trash can and its control. The invention controls the bag feeding device by a first motor to convey the garbage bag downward, and then drives the scissor hinge by a second motor to achieve the shrinkage and heat sealing of the garbage bag. The present invention can realize the convenient packing of garbage bags by controlling the bag feeding device and the shrinkage device. However, since the frequency of automatic packing and collection of the toilet chair is relatively high, the use of two sets of motor control requires more energy loss, which does not meet the principles of energy saving and environmental protection. Moreover, the two sets of motor components make the toilet chair large in size and heavy in weight, which is not convenient to carry. In response to the above problems, this application designs a single-motor driven toilet chair. Summary of the Invention

[0003] The present invention provides a single-motor driven commode chair, which can effectively solve the above problems.

[0004] The present invention is achieved in that:

[0005] A single-motor driven commode chair comprising:

[0006] The toilet chair body includes a garbage bag storage port and a discharge port;

[0007] A garbage bag fixing device, provided at the garbage bag storage opening for storing hollow garbage bags;

[0008] a bag feeding device, disposed below the garbage bag fixing device, comprising a driven gear unit and a bag feeding wheel unit driven by the gear unit, the bag feeding device being used to feed the garbage bag downward;

[0009] a necking device, disposed below the bag feeding device, comprising a scissor hinge unit, 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 forward and reverse drive motor, which drives a first gear mechanism and a second gear mechanism arranged in the opposite direction of the first gear mechanism. When the forward and reverse drive motor rotates forward / reverse, the first gear mechanism drives the gear unit to thereby convey the garbage bag mounted on the bag feeding device downward; when the forward and reverse drive motor rotates reverse / forward, the second gear mechanism drives the scissor hinge unit and then drives the first guide plate to slide relative to the second guide plate to achieve the tightening of the garbage bag.

[0011] A control method for a single-motor driven commode chair comprises the following steps:

[0012] S10: Fixing the garbage bag on the garbage bag fixing device;

[0013] S20: The forward and reverse driving motor rotates forward, and the bag feeding device stretches the garbage bag out of the garbage bag fixing device.

[0014] S30: delivering the bag by the bag delivering device over a predetermined distance;

[0015] S40: When the toilet is finished, the forward and reverse drive motors are reversed, and the garbage bag shrinking mechanism is used to shrink and heat-seal the garbage bag;

[0016] S50: The forward and reverse driving motor rotates forward, and the bag is delivered by the bag delivery device again for a predetermined distance.

[0017] A single-motor driven trash can comprising:

[0018] The trash can body includes a trash bag storage port and a discharge port;

[0019] A garbage bag fixing device, provided at the garbage bag storage opening for storing hollow garbage bags;

[0020] a bag feeding device, disposed below the garbage bag fixing device, comprising a gear unit and a bag feeding wheel set driven by the gear unit, the bag feeding device being used to feed the garbage bag downward;

[0021] a necking device, disposed below the bag feeding device, comprising a scissor hinge unit, a first guide plate disposed on the scissor hinge unit, and a second guide plate disposed opposite to the first guide plate; and

[0022] The transmission device includes a forward and reverse drive motor, which drives a first gear mechanism and a second gear mechanism. When the forward and reverse drive motor rotates forward / reverse, the first gear mechanism drives the gear unit to thereby convey the garbage bag mounted on the bag feeding device downward; when the forward and reverse drive motor rotates reverse / forward, the second gear mechanism drives the scissor hinge unit and then drives the first guide plate to slide relative to the second guide plate to achieve the tightening of the garbage bag.

[0023] The beneficial effects of the present invention are:

[0024] By setting the transmission device, the transmission device includes a forward and reverse drive motor, which drives a first gear mechanism and a second gear mechanism set in the opposite direction to the first gear mechanism. When the forward and reverse drive motor rotates forward / reverse, the first gear mechanism drives the gear unit to transmit the garbage bag mounted on the bag feeding device downward; when the forward and reverse drive motor rotates reverse / forward, the second gear mechanism drives the scissors-fork hinge unit and then drives the first guide plate to slide relative to the second guide plate to achieve the tightening of the garbage bag. Only one set of motors is needed to control the bag feeding device and the shrinking device to achieve single-motor control. While meeting the packaging function of the toilet chair, it saves the energy loss caused by multiple sets of motors, and can effectively reduce the volume and weight, making it convenient for outdoor transportation or use by patients and the elderly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 Schematic diagram of the structure of a commode chair provided in Example 1 of the present invention.

[0027] Figure 2 It is a schematic diagram of the explosion structure provided in Example 1 of the present invention.

[0028] Figure 3 It is a structural schematic diagram of a garbage bag fixing device provided in Example 1 of the present invention.

[0029] Figure 4 This is a schematic diagram of the installation structure of the garbage bag fixing device provided in Example 1 of the present invention.

[0030] Figure 5-6 It is a schematic structural diagram of the transmission device provided in Example 1 of the present invention.

[0031] Figure 7It is a partial structural diagram of the transmission device provided in Example 1 of the present invention.

[0032] Figure 8 yes Figure 7 Schematic diagram of the cross-section structure.

[0033] Figure 9-13 It is a schematic diagram of the structure of transmission device components provided in Example 1 of the present invention.

[0034] Figure 14 It is a schematic diagram of the ratchet structure of the prior art.

[0035] Figure 15-17 It is a structural schematic diagram of the bag feeding device provided in Example 1 of the present invention.

[0036] Figure 18-20 It is a structural schematic diagram of the necking device provided in Example 1 of the present invention.

[0037] Figure 21 It is a schematic diagram of the structure of the scissor hinge unit provided in Example 1 of the present invention.

[0038] Figure 22 yes Figure 20 Schematic diagram of the explosion structure.

[0039] Figure 23 It is a schematic structural diagram of the heat-sealing bag opening device provided in Example 1 of the present invention.

[0040] Figure 24 This is a schematic diagram of the structure of a trash can provided in Example 2 of the present invention. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work 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 drawings is not intended to limit the scope of the invention for which protection is sought, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0042] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0043] Example 1:

[0044] Reference Figures 1-2 As shown, a single-motor driven toilet chair comprises: a toilet chair body 1, the toilet chair body 1 comprising a garbage bag storage port and a discharge port, and a collecting device 2 arranged at the lower part of the toilet chair body 1. The collecting device 2 comprises: a garbage bag fixing device 21, arranged at the garbage bag storage port for storing hollow garbage bags 3; a bag feeding device 22, arranged below the garbage bag fixing device 21, comprising a driven gear set 221 and a bag feeding wheel set 222 driven by the driven gear set 221, the bag feeding device 22 being used to convey the garbage bags 3 downward; a necking device 23, arranged below the bag feeding device, comprising a scissor-type hinge unit 231 and a first guide plate 232 arranged on the scissor-type hinge unit 231, a second guide plate 233 arranged opposite to the first guide plate 232; and a transmission device. The device 24 includes a forward / reverse drive motor 241, which drives a first gear mechanism 242 and a second gear mechanism 243, which is arranged in the opposite direction of the first gear mechanism 242. When the forward / reverse drive motor 241 rotates forward / reverse, the first gear mechanism 242 drives the driven gear set 221 to convey the garbage bag 3 attached to the bag feeding device 22 downward. When the forward / reverse drive motor 241 rotates forward / reverse, 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. A heat-sealing bag opening device 25 is provided at the bottom of the bag closing assembly 24 for sealing the garbage bag 3. This commode chair can automatically deliver, collect, and package excrement, and heat-seal the bag. The garbage bag shrinking toilet chair also has the characteristics of being easy to carry, and is suitable for outdoor carrying or use by children and middle-aged and elderly people. The present invention only requires one set of motors to control the bag feeding device 22 and the shrinking device 23 to achieve single-motor control. While meeting the packaging function of the toilet chair, it saves energy loss caused by multiple sets of motors, and can effectively reduce the volume and weight, making it convenient for outdoor transportation or use by patients and the elderly.

[0045] Reference Figures 3 and 4As shown, the garbage bag fixing device 21 includes: a hollow cylinder 211, which is used to fit the hollow garbage bag 3; a base 212 extending horizontally outward from the bottom end of the hollow cylinder 211, and the base 212 is fixed to the toilet chair body 1; one end of the garbage bag 3 is connected to the outside of the hollow cylinder 211, and then an annular fixing ring 213 is used to connect the outside of the hollow cylinder 211. The garbage bag opening is set between the annular fixing ring 213 and the hollow cylinder 211. The toilet seat 214 is then buckled to strengthen the fixation and prevent the garbage bag 3 from slipping out of the hollow cylinder 211 when using the toilet. The garbage bag fixing device 21 further includes a sensor (not shown) provided 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-0.2mm; more preferably, the thickness of the garbage bag 3 consumable material is 0.01mm-0.03mm; in this embodiment, the thickness of the garbage bag 3 consumable material is 0.01mm.

[0046] Reference Figures 5 to 13As shown, the transmission device 24 includes a forward and reverse drive motor 241, and the forward and reverse drive motor 241 drives a transmission shaft 2413. In this embodiment, the forward and reverse drive motor 241 is connected to a worm 2411, and the worm 2411 is connected to a turbine 2412. The turbine 2412 is provided on the transmission shaft 2413 and is fixed with bolts so that the turbine 412 and the transmission shaft 2413 rotate coaxially. The second gear mechanism 243 is provided in the middle of the transmission shaft 2413. The first gear mechanism 242 includes a gear mechanism provided on the transmission shaft 24 13 and a first gear set 2421 at one end of the transmission shaft 2413 and a second gear set 2422 arranged at an end of the transmission shaft 2413 away from the first gear set 2421. The first gear set 2421, the second gear set 2422 and the second gear mechanism 243 all include a gear 244 arranged coaxially with the transmission shaft 2413. A first receiving groove 2441 is provided on the side wall of the gear 244. A fixing member 245 that rotates coaxially with the transmission shaft 2413 is accommodated in the first receiving groove 2441. The fixing member 245 is fixed to the transmission shaft 2413 using bolts. 413, the side wall of the fixing member 245 is provided with a second accommodating groove 2451, and an accommodating cavity 246 is formed between the first accommodating groove 2441 and the second accommodating groove 2451. The accommodating cavity 246 contains a transmission member 247 that rotates coaxially with the fixing member 245. The side wall of the fixing member 245 is provided with a plurality of limit blocks 2452, and the transmission member 247 is provided with a limit groove 2472 adapted to the limit block 2452. In this embodiment, the number of the limit blocks 2452 and the limit groove 2472 is 3, and the limit blocks 2452 The limiting groove 2472 is connected to allow the fixing member 245 to rotate coaxially with the transmission member 247; the transmission device 24 of the present invention is not provided with a structure that moves axially along the transmission shaft 2413, so that the first gear mechanism 242 and the second gear mechanism 243 are easy to disassemble, which is convenient for replacing parts or checking transmission problems. 3 to 8 arc-shaped ratchets 2442 are provided in an annular array at the bottom of the first accommodating groove 2441, and the transmission member 247 is provided with an arc-shaped groove 2471 adapted to the arc-shaped ratchet 2442, and the arc-shaped ratchet 2442 engages with the arc-shaped groove 2471. In this embodiment, the number of the arc-shaped ratchet teeth 2442 is 3. When the number of the arc-shaped ratchet teeth 2442 is less than 3, the precision of the transmission device 24 is poor, resulting in deviations in the operating precision of the bag feeding device 22 and the shrinking device 23, which may cause the garbage bag 3 to detach from the bag feeding device 22 or incomplete shrinkage. If the number of the arc-shaped ratchet teeth 2442 is greater than 8, the equipment has high precision, but the transmission is more laborious, resulting in increased energy consumption and aggravated wear on parts. Therefore, when the number of the arc-shaped ratchet teeth 2442 is 3 to 8, the equipment of the present invention reaches the best state. Preferably, the number of the arc-shaped ratchet teeth 2442 is 3.A spring receiving groove 248 is provided between the fixing member 245 and the transmission member 247 , and a spring 2481 is provided in the spring receiving groove 248 . The purpose of providing the spring 2481 is to make the arc-shaped ratchet 2442 engage with the arc-shaped groove 2471 to prevent idling.

[0047] The arc-shaped ratchet tooth 2442 includes a tooth top 2442a and a tooth bottom 2442b away from the tooth top 2442a. The height of each arc-shaped ratchet tooth 2442 decreases from the tooth top 2442a to the tooth bottom 2442b. The arc-shaped groove 2471 includes a butt end 2471a and a sliding end 2471b. The depth of each arc-shaped groove 2471 increases from the sliding end 2471b to the butt end 2471a.

[0048] The working principle of this device is as follows: when the arc-shaped ratchet 2442 engages with the arc-shaped groove 2471, the tooth top 2442a is connected to the abutting end 2471a, and the tooth bottom 2442b is connected to the sliding end 2471b. When the forward and reverse motor 241 rotates forward, the tooth top 2442a of the arc-shaped ratchet 2442 of the first gear mechanism 242 abuts the abutting end 2471a of the arc-shaped groove 2471, causing the gear 244 of the first gear mechanism 242 to rotate, thereby driving the bag feeding device 22. The tooth top 2442a of the arc-shaped ratchet 2442 of the second gear mechanism 243 slides from the sliding end 2471b of the arc-shaped groove 2471 and compresses the spring 2481. The fixing part 245 of the second gear mechanism 243 drives the transmission part 247 to idle, and the shrinking device 23 does not operate. When the garbage bag 3 is conveyed to between the first guide plate 232 and the second guide plate 233, the forward and reverse motor 241 rotates. The tooth top 2442a of the arcuate ratchet 2442 of the second gear mechanism 243 abuts against the abutting end 2471a of the arcuate groove 2471, causing the gear 244 of the second gear mechanism 243 to rotate. The second gear mechanism 243 drives the scissor hinge unit 231, thereby driving the first guide plate 232 to slide relative to the second guide plate 233 to achieve the tightening of the garbage bag. The tooth top 2442a of the arcuate ratchet 2442 of the first gear mechanism 242 slides from the sliding end 2471b of the arcuate groove 2471 and compresses the spring 2481. The fixing member 245 of the first gear mechanism 242 drives the transmission member 247 to rotate idly, and the bag feeding device 22 fixes the garbage bag 3. Compared with the traditional ratchet mechanism, the advantage of this device is that the ratchet is driven by a pawl to perform stepping motion, and the pawl is arranged in the ratchet mechanism through a pin shaft. Figure 14As shown, since the motor of this device needs to frequently drive the ratchet mechanism forward and reverse to realize the movement of different mechanisms, when the pawl reverses, the ratchet teeth of the ratchet engage with the pawl to realize the movement of the ratchet. At this time, the pawl is subjected to the reverse force of the ratchet teeth. If the mechanism is more complex and heavier, the reverse force on the pawl is greater. The pin shaft, as a small-diameter component, may not be able to withstand the stress during long-term use, causing the pin shaft to break, affecting the service life of the device. The transmission member 247 of this device can not only realize the function of unidirectional rotation, but also the structure of the transmission member 247 is stable, which can effectively improve the service life of the device and ensure transmission stability.

[0049] Reference Figures 15 to 17As shown, the bag feeding device 22 is arranged 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 first gear set 2421 and the second gear set 2422 are arranged in the same direction to ensure that the bag feeding devices 22 at both ends move synchronously, preventing the excrement from leaking sideways due to the asynchronous movement of the bag feeding devices 22. The bag feeding device 22 includes a symmetrically arranged mounting housing 223, and the first gear set 2421 and the second gear set 2422 are arranged in the mounting housing 223. Since the first gear mechanism 242 is not provided with an axial limit, the mounting housing 223 acts as a limit device for the first gear mechanism 242, preventing the gear 244 of the first gear mechanism 242 from separating from the transmission member 247. The arc-shaped ratchet 2442 cannot engage with the arc-shaped groove 2471, resulting in the failure of the first gear mechanism 242 and the inability of the bag feeding device 22 to operate. Each gear set meshes with a driven gear set 221. The driven gear set 221 is provided with a bag-feeding wheel set 222. The driven gear set 221 includes a first driven gear 2211 and a second driven gear 2212. A transmission gear is further 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 provided on the first driven gear 2211 and a second driven wheel 2222 provided on the second driven gear 2212. The first driven wheel 2221 and the second driven wheel 2222 are tangentially fixed to the garbage bag 3. The first driving wheel 2251 and the first driven wheel 2252 are provided on the same plane.The driven gear set 221 is provided with a torsion spring assembly 224, and the torsion spring assembly 224 includes a straight notch 2241 provided at one end of the mounting housing 223 away from the first gear mechanism 242. The first driven wheel 2221 is connected to the first driven gear 2211 via a rotating shaft 2242 that passes through the straight notch 2241. An arc-shaped stopper 2243 is sleeved on the rotating shaft 2242. A second torsion spring 2244 is provided below the rotating shaft 2242. The second torsion spring 2244 abuts against the arc-shaped stopper 2243 to achieve a slight displacement of the first driven wheel 2221, thereby fixing the garbage bag 3. The mounting housing 223 also includes a torsion spring stopper 2245 provided below the straight notch 2241. One end of the second torsion spring 2244 abuts against the torsion spring stop 2245, and the other end abuts against the arc stop 2243. During the bagging process, since it is necessary to use the bagging correction device to clamp one end of the garbage bag 3 in the bag feeding wheel group 222, the bag feeding device 22 is set up, and the driven gear can achieve a slight downward displacement, creating a gap between the first driven wheel 2221 and the second driven wheel 2222, so that the bagging correction device can enter between the first driven wheel 2221 and the second driven wheel 2222, that is, the garbage bag 3 is placed in the bag feeding wheel group 222, and then the bagging correction device is taken out, the second torsion spring 2244 drives the first driven wheel 2221 to reset, and the bag feeding wheel group 222 clamps the garbage bag 3.

[0050] Reference Figures 18 to 22As shown, the necking device 23 is arranged below the bag feeding device, and includes a scissor-fork hinge unit 231 and a first guide plate 232 arranged on the scissor-fork hinge unit 231 , and a second guide plate 233 arranged opposite to the first guide plate 232 . The garbage bag fixing device 21 includes a hollow cylinder 211, which includes a mounting post 215 extending vertically downward from a sidewall. A fixing rod 2151 is disposed within the mounting post 215. The gear 244 of the second gear mechanism 243 is meshed with a rack 249. The gears of the second gear mechanism 243 are formed as a double-gear integrally molded structure, which has the advantage of increasing the contact area with the rack 249 and improving the stability of the device. The rack 249 is provided with a slide groove 2491 adapted to the fixing rod 2151, and the slide groove 2491 is slidably connected to the fixing rod 2151. The scissor hinge unit 231 includes 2 to 6 scissor fork groups. Preferably, the scissor hinge unit 231 includes 3 to 5 scissor fork groups. In one embodiment, the scissor hinge unit 231 includes 4 scissor fork groups. Specifically, the scissor hinge unit 231 includes: a first scissor assembly 2311, which includes two first scissor arms 2311a, and one end of the first scissor arms 2311a is rotatably disposed on the fixing rod 2151; the fixing rod 2151 passes through the sliding groove 2491 and connects to the first through hole 2311b at the intersection of the first scissor assembly 2311;

[0051] The second scissors fork group 2312 includes two cross-arranged second scissors fork arms 2312a, one end of each second scissors fork arm 2312a is rotatably connected to the other end of each first scissors fork arm 2311a, and a second through hole 2312b is provided at the intersection of each second scissors fork arm 2312a, and the second through hole 2312b is fixed by a practical bolt, and the rack 249 is provided with a bolt hole 2492, and the bolt hole 2492 is connected to the second through hole 2312b at the intersection of the second scissors fork group 2312.

[0052] The third scissors fork group 2313 includes two cross-arranged third scissors fork arms 2313a, and a third through hole 2313b is provided at the intersection of each third scissors fork arm 2323c1, and the third through hole 2313b is fixed with bolts; one end of each third scissors fork arm 2323c1 is rotatably connected to the other end of each second scissors fork arm 2312a, and the third scissors fork arm has a conduction function. Multiple groups of the third scissors fork groups 2323c can be set. In this embodiment, one group of the third scissors fork group 2323c is set.

[0053] The fourth scissor fork group 2314 includes two fourth scissor fork arms 2314a arranged crosswise, and a fourth long strip through hole 2314b is provided at the intersection of each fourth scissor fork arm 2314a; one end of each fourth scissor fork arm 2314a is rotatably connected to the other end of each third scissor fork arm 2313a, and the fourth long strip through hole 2314b is fixed with a bolt. According to the working principle of the scissor fork hinge, in order to realize the rotation connection between the fourth scissor fork arm 2314a and the first guide plate 232 away from one end of the third scissor fork group 2313, the scissor fork is increased. In order to ensure the movement stability of the hinge unit 231, the fourth long through hole 2314b is provided to realize the angle change between the fourth scissors arms 2314a so as to realize the movement of the scissors hinge unit 231. The fourth scissors arms 2314a also have a limiting function, which limits the movement of the scissors hinge unit 231 within the length range of the fourth long through hole 2314b. The stability of the scissors hinge unit 231 is ensured by utilizing the stability of the reciprocating motion. The scissors hinge unit 231 can swing with the rack 249 to increase the range, thereby reducing energy consumption and improving efficiency.

[0054] The gear 244 of the second gear mechanism 243 is provided with a torsion spring receiving groove 2443 at one end away from the first receiving groove 2441, and a first torsion spring 2444 is accommodated in the torsion spring receiving groove 2443. An arc-shaped through hole 2445 is provided at the bottom of the torsion spring receiving groove 2443. A torsion spring mounting post 216 extends vertically downward from the side wall of the hollow cylinder 211. One end of the first torsion spring 2444 is provided in the arc-shaped through hole 2445, and the other end is provided in the torsion spring mounting post 216. A buckle is provided at one end of the gear 244 of the second gear mechanism 243 away from the fixing member 245. In other embodiments, the buckle is replaced with a stopper 40. The stopper 40 is a curved sleeve 401 with an opening on one side. A bolt fixing seat 402 is provided at the opening of the curved sleeve 401. A bolt and a nut are mounted on the bolt fixing seat 402. Several curved protrusions 403 are provided on the inner wall of the curved sleeve 401. These curved protrusions 403 increase friction and enhance the position-limiting effect. A fixing bolt hole 404 is provided on the sidewall of the curved sleeve 401 away from the bolt fixing seat 402. The fixing bolt hole 404 is secured to the optical axis 102 using a bolt. The fixing bolt hole 404 is in the shape of a straight slot, with several curved steps 404a symmetrically provided at both ends of the curved shape. These curved steps 404a enhance the tightening effect of the bolt, preventing the bolt from loosening during operation, which would cause the position-limiting effect to fail.

[0055] The first torsion spring 2444 is used to limit the movement of the gear 244, and the limiting function of the first torsion spring 2444 prevents the gear 244 of the second gear mechanism 243 from separating from the transmission member 247. The arc-shaped ratchet 2442 cannot engage with the arc-shaped groove 2471, resulting in the failure of the second gear mechanism 243 and the inability of the shrinking device 23 to operate. The function of the first torsion spring 2444 is also that: since the second gear mechanism 243 has only a one-way rotation function, when the first guide plate 232 moves toward the second guide plate 233 to shrink, the first guide plate 232 cannot be recovered, so the first torsion spring 2444 is provided. When the first guide plate 232 moves toward the second guide plate 233, the first torsion spring 2444 is in a torsional rotation. After the shrinking is completed, the second gear mechanism 243 rotates in the opposite direction to the initial position due to the torsional force of the first torsion spring 2444, completing the reset of the first guide plate 232.

[0056] The first guide plate 232 and the second guide plate 233 are both double-layer structures. The first guide plate 232 includes an upper splint 2321 and a lower splint 2322. The second guide plate 233 is provided with an upper splint guide groove 2331 and a lower splint guide groove 2332 respectively adapted to the upper splint 2321 and the lower splint 2322. The upper splint 2321 is slidably connected to the upper splint guide groove 2331 to achieve the upper tightening of the garbage bag opening, and the lower splint 2322 can be slidably connected to the lower splint guide groove 2332 to achieve the lower tightening of the garbage bag opening, thereby more accurately achieving the sealing of the garbage bag 3, and the guiding function of the first guide plate 232 and the second guide plate 233 is utilized to increase the stability of the garbage bag sealing.

[0057] Reference Figures 19-23 As shown, the heat-sealing bag opening device 25 includes a first heat-sealing knife 251 and a second heat-sealing knife 252 disposed opposite the first heat-sealing knife 251. The second heat-sealing knife 252 is driven by the transmission device 24 to move toward the first heat-sealing knife 251 to heat-seal the tightened garbage bag opening. Each heat-sealing knife includes a heat-sealing knife base 2511 and a heat-sealing blade 2512 perpendicularly connected to the heat-sealing knife base 2511. The first heat-sealing knife 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 knife 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) disposed inside the heat-sealing knife base 2511.

[0058] The present invention also includes a control method for a single-motor driven commode chair, comprising the following steps:

[0059] S10: The garbage bag 3 is secured to the garbage bag securing device 21. The steps include: one end of the garbage bag 3 is sleeved onto the outside of the hollow cylinder 211, and then the annular securing ring 213 is sleeved onto the outside of the hollow cylinder 211. The opening of the garbage bag is positioned between the annular securing ring 213 and the hollow cylinder 211, and then the toilet seat 214 is fastened. One end of the garbage bag 3 is placed on the bag feeding wheel assembly 222 using a bagging and calibration device, and then the bagging and calibration device is removed.

[0060] S20: The forward and reverse drive motor 241 rotates forward, and the bag feeding device 22 stretches the garbage bag 3 out of the garbage bag fixing device 21: by sensing that the human body leaves the toilet chair through the sensor, the forward and reverse drive motor 241 can rotate forward, and the bag feeding device 22 can be started. The bag feeding wheel groups 222 on both sides clamp the garbage bag 3 or soft bag, and the garbage bag 3 is synchronously pulled downward to separate from the hollow cylinder 211.

[0061] S30: The bag is delivered by the bag delivery device 22 for a predetermined distance, and the distance is such that the opening of the garbage bag is within the working range of the shrinking device 23.

[0062] S40: When the toilet is finished, the forward and reverse drive motor 241 is reversed, and the shrinking device 23 and the heat-sealing bag opening device 25 are used to shrink and heat-seal the bag. The forward and reverse drive motor 241 reverses to drive the scissor hinge 2323 and then drives the first guide plate 232 to slide relative to the second guide plate 233 to achieve the tightening of the garbage bag opening and open the heat-sealing bag opening component 25 to heat-seal the bag opening of the garbage bag 3 after shrinking the bag opening, completing the heat-sealing packaging of the garbage bag 3 to prevent excrement from overflowing.

[0063] S50: The forward and reverse driving motor 241 rotates forward, and the bag feeding device 22 feeds the bag a predetermined distance again, and moves the packed garbage bag 3 to the discharge plate 26 at the bottom of the toilet chair body 1 to complete the discharge.

[0064] Example 2:

[0065] Reference Figure 24 As shown, another embodiment of the present invention further includes a single-motor driven trash can, comprising:

[0066] 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 rectangular parallelepiped or a cube. In one embodiment, the trash can body 4 is a rectangular parallelepiped, with the trash bag storage opening located at the top of the rectangular parallelepiped and the discharge opening located on a side wall of the rectangular parallelepiped (not shown in the figure).

[0067] A garbage bag fixing device 21 is provided at the garbage bag storage opening for storing the hollow garbage bag 3;

[0068] The bag feeding device 22 is provided 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 feed the garbage bag 3 downward.

[0069] The necking device 23 is provided below the bag feeding device and includes a scissor hinge unit 231, a first guide plate 232 provided on the scissor hinge unit 231, and a second guide plate 233 provided opposite to the first guide plate 232; and

[0070] 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 of 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 thereby convey the garbage bag 3 connected to the bag feeding device 22 downward; when the forward and reverse drive motor 241 rotates reverse / forward, the second gear mechanism 243 drives the scissors-fork hinge unit 231 and then drives the first guide plate 232 to slide relative to the second guide plate 233 to achieve the tightening and opening of the garbage bag 3.

[0071] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A single motor driven commode chair, characterized in that: include: The toilet chair body (1) includes a garbage bag storage port and a discharge port; A garbage bag fixing device (21) is provided at the garbage bag storage opening for storing the hollow garbage bag (3); a bag-feeding device (22), disposed below the garbage bag fixing device (21), comprising a driven gear set (221) and a bag-feeding wheel set (222) driven by the driven gear set (221), wherein the bag-feeding device (22) is used to deliver the garbage bag (3) downward; a necking device (23), disposed below the bag feeding device, comprising a scissor-fork hinge unit (231), a first guide plate (232) disposed on the scissor-fork hinge unit (231), and a second guide plate (233) disposed opposite to the first guide plate (232); and The transmission device (24) comprises a forward and reverse driving motor (241), wherein the forward and reverse driving motor (241) 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 driving motor (241) rotates forward or reverse, the first gear mechanism (242) drives the driven gear set (221) so that the garbage bag (3) sleeved on the bag feeding device (22) is conveyed downward; when the forward and reverse driving motor (241) rotates reverse or forward, the second gear mechanism (243) drives the scissor hinge unit (231) and further drives the first guide plate (232) to slide relative to the second guide plate (233) to achieve the tightening of the garbage bag (3).

2. A single-motor driven commode chair according to claim 1, characterized in that: The forward and reverse driving motor (241) drives the transmission shaft (2413), the second gear mechanism (243) is arranged in the middle of the transmission shaft (2413), the first gear mechanism (242) includes a first gear group (2421) arranged at one end of the transmission shaft (2413) and a second gear group (2422) arranged at one end of the transmission shaft (2413) away from the first gear group (2421), the first gear group (2421), the second gear group (2422) and the second gear mechanism (243) all include a gear (244) arranged coaxially with the transmission shaft (2413) and synchronously without rotating, the side wall of the gear (244) is provided with a first accommodating groove (2441), and the first accommodating groove (2442) is provided on the side wall of the gear (244). The groove (2441) contains a fixing member (245) that rotates synchronously with the coaxial center of the transmission shaft (2413); a second accommodating groove (2451) is provided on the side wall of the fixing member (245); a accommodating cavity (246) is formed between the first accommodating groove (2441) and the second accommodating groove (2451); a transmission member (247) that rotates synchronously with the coaxial center of the fixing member (245) is provided in the accommodating cavity (246); 3 to 8 arc-shaped ratchet teeth (2442) are provided in an annular array at the bottom of the first accommodating groove (2441); the transmission member (247) is provided with an arc-shaped groove (2471) adapted to the arc-shaped ratchet teeth (2442); and the arc-shaped ratchet teeth (2442) engage with the arc-shaped groove (2471).

3. The single-motor driven commode chair according to claim 2, characterized in that: The arc-shaped ratchet (2442) includes a tooth top (2442a) and a tooth bottom (2442b) away from the tooth top (2442a). The height of each arc-shaped ratchet (2442) decreases from the tooth top (2442a) to the tooth bottom (2442b). The arc-shaped groove (2471) includes an abutting end (2471a) and a sliding end (2471b). The depth of each arc-shaped groove (2471) increases from the sliding end (2471b) to the abutting end (2471a). When the arc-shaped ratchet (2442) engages the arc-shaped groove (2471), the tooth top (2442a) is connected to the abutting end (2471a), and the tooth bottom (2442b) is connected to the sliding end (2471b).

4. The single-motor driven commode chair according to claim 3, characterized in that: The side wall of the fixing member (245) is provided with a plurality of limiting blocks (2452); the transmission member (247) is provided with limiting grooves (2472) adapted to the limiting blocks (2452); the limiting blocks (2452) are connected to the limiting grooves (2472) so that the fixing member (245) and the transmission member (247) rotate coaxially; a spring receiving groove (248) is provided between the fixing member (245) and the transmission member (247). , a spring (2481) is provided in the spring receiving groove (248), when the forward and reverse driving motor (241) rotates forward, the tooth top (2442a) of the arc-shaped ratchet (2442) of the first gear mechanism (242) abuts against the abutting end (2471a) of the arc-shaped groove (2471) to rotate the gear (244) of the first gear mechanism (242), the tooth top (2442a) of the arc-shaped ratchet (2442) of the second gear mechanism (243) slides from the sliding end (2471b) of the arc-shaped groove (2471) and compresses the spring (2481), and the fixing member (245) of the second gear mechanism (243) drives the transmission member (247) to rotate idly; when the forward and reverse driving motor (241) rotates reversely, the tooth top (2442a) of the arc-shaped ratchet (2442) of the second gear mechanism (243) abuts against the arc-shaped groove ( The abutting end (2471a) of the first gear mechanism (243) rotates the gear (244) of the second gear mechanism (243), the tooth top (2442a) of the arc-shaped ratchet (2442) of the first gear mechanism (242) slides from the sliding end (2471b) of the arc-shaped groove (2471) and compresses the spring (2481), and the fixing member (245) of the first gear mechanism (242) drives the transmission member (247) to rotate idly.

5. The single-motor driven commode chair according to claim 2, characterized in that: The first gear set (2421) and the second gear set (2422) are arranged in the same direction. The bag feeding device (22) includes a symmetrically arranged mounting shell (223). The first gear set (2421) and the second gear set (2422) are arranged in the mounting shell (223). Each gear set is engaged with a driven gear set (221). A bag feeding wheel set (222) is arranged on the driven gear set (221). The driven gear set (221) includes a first driven gear (2211) and a second driven gear (2212). The bag feeding wheel set (222) includes a first driven wheel (2221) arranged on the first driven gear (2211) and a second driven wheel (2222) arranged on the second driven gear (2212). The first driven wheel (2221) and the second driven wheel (2222) are tangentially fixed to the garbage bag (3).

6. The single-motor driven commode chair according to claim 4, characterized in that: The garbage bag fixing device (21) includes a hollow cylinder (211), the hollow cylinder (211) includes a side wall with a mounting column (215) extending vertically downward, a fixing rod (2151) is arranged in the mounting column (215), the gear (244) of the second gear mechanism (243) is engaged with a rack (249), the rack (249) is provided with a slide groove (2491) adapted to the fixing rod (2151), and the slide groove (2491) is slidably connected to the fixed rod (2151); the scissor-fork hinge unit (231) includes 2 to 6 scissor-fork groups, the fixed rod passes through the sliding groove and is connected to the first through hole (2311b) at the intersection of the first scissor-fork group (2311), and the rack (249) is provided with a bolt hole (2492), and the bolt hole (2492) is connected to the second through hole (2312b) at the intersection of the second scissor-fork group (2312).

7. The single-motor driven commode chair according to claim 6, characterized in that: A torsion spring receiving groove (2443) is provided at one end of the gear (244) of the second gear mechanism (243) away from the first receiving groove (2441), a first torsion spring (2444) is accommodated in the torsion spring receiving groove (2443), an arc-shaped through hole (2445) is provided at the bottom of the torsion spring receiving groove (2443), a torsion spring mounting column (216) is vertically extended downward from the side wall of the hollow cylinder (211), one end of the first torsion spring (2444) is provided in the arc-shaped through hole (2445), and the other end is provided in the torsion spring mounting column (216), when the shrinkage of the garbage bag (3) is completed, the second gear mechanism (243) is reset under the torsion force of the first torsion spring (2444), thereby opening the shrinkage device (23).

8. A control method for a single-motor driven commode chair as claimed in claim 1, characterized in that: The steps include: S10: fixing the garbage bag (3) on the garbage bag fixing device (21); S20: The forward and reverse driving motor (241) rotates forward, and the bag feeding device (22) stretches the garbage bag (3) out of the garbage bag fixing device (21). S30: delivering the bag a predetermined distance by the bag delivering device (22); S40: When the toilet is finished, the forward and reverse driving motor (241) is reversed, and the bag is shrunk and heat-sealed by the shrinking device (23) and the heat-sealing bag device (25); S50: The forward and reverse driving motor (241) rotates forward, and the bag is delivered to a predetermined distance through the bag delivery device (22) again.

9. A single motor driven trash can, characterized in that: include: The trash can body (4) includes a trash bag storage port and a discharge port; A garbage bag fixing device (21) is provided at the garbage bag storage opening for storing the hollow garbage bag (3); a bag-feeding device (22), disposed below the garbage bag fixing device (21), comprising a driven gear set (221) and a bag-feeding wheel set (222) driven by the driven gear set (221), wherein the bag-feeding device (22) is used to deliver the garbage bag (3) downward; a necking device (23), arranged below the bag feeding device, comprising a scissor-fork hinge unit (231), a first guide plate (232) arranged on the scissor-fork hinge unit (231), and a second guide plate (233) arranged opposite to the first guide plate; and The transmission device (24) comprises a forward and reverse driving motor (241), wherein the forward and reverse driving motor (241) 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 driving motor (241) rotates forward or reverse, the first gear mechanism (242) drives the driven gear set (221) so that the garbage bag (3) sleeved on the bag feeding device (22) is conveyed downward; when the forward and reverse driving motor (241) rotates reverse or forward, the second gear mechanism (243) drives the scissor hinge unit (231) and further drives the first guide plate (232) to slide relative to the second guide plate (233) to achieve the tightening of the garbage bag (3).

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