Portable integrated intelligent suction device for urine collection
By integrating a miniature axial flow pump and an intelligent detection urine collection device, the problems of large size, complex operation, and poor sealing of traditional urine collection devices are solved, realizing convenient and reliable urine collection and export, and suitable for use in multiple scenarios.
Patent Information
- Application Number
- CN202610258811.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-04
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional urine collection devices are bulky, cumbersome to operate, have poor sealing performance, limited functionality, and cannot be adapted to multiple scenarios, affecting user experience and nursing efficiency.
Design a portable integrated intelligent urine collection and aspiration device that integrates a micro axial flow pump, a main control circuit board, a liquid detection sensor, and a lithium battery. It adopts a pressurization and acceleration design of the micro axial flow pump, combined with intelligent detection and motor drive, to achieve automated urine collection, aspiration, and export.
It improves the convenience, hygiene, and privacy of urine collection, reduces the feeling of wearing a foreign object, enhances the reliability and battery life of the device, and ensures sealing and efficient liquid conduction.
Smart Images
Figure CN121927149A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of urine collection device technology, and in particular to a portable integrated intelligent urine collection and suction device. Background Technology
[0002] Traditional urine collectors are mainly used for people with limited mobility, bedridden patients, postoperative recovery groups, and special work scenarios. Their core purpose is to collect and temporarily store urine to prevent urine from polluting the environment. Their function is to meet the physiological needs of people who cannot use the toilet normally, reduce the cleaning burden on caregivers, and protect the hygiene of users to a certain extent. However, their function is limited, they rely heavily on manual operation and simple drainage, and can only meet basic collection needs.
[0003] Traditional products severely impact user experience and care efficiency during urine collection. Traditional chamber pot-shaped collection devices, as the mainstream products, can only achieve basic temporary urine storage functions, but have many undeniable defects. These devices are bulky and lack portable design, making them cumbersome to use or move. This is especially true for elderly people with limited mobility, bedridden patients, and other groups who find it difficult to use independently and need assistance from others, severely limiting their autonomy. Poor sealing performance is also a drawback. Its open or simple sealing structure is prone to urine leakage, which not only pollutes the environment and increases the cleaning burden, but may also cause odor to spread, affecting the user's privacy and the comfort of the living environment. The liquid delivery method relies entirely on manual pouring, which poses a risk of splashing and increases the workload of nursing care. In addition, urine is easy to remain inside the device, and incomplete cleaning can easily breed bacteria, threatening the user's health. Furthermore, chamber pot-shaped collection devices have limited functionality, lacking features such as intelligent detection and automatic fluid drainage, making them unsuitable for various scenarios including outdoor use and rehabilitation care, and failing to meet users' comprehensive needs for convenience, hygiene, and privacy. Therefore, those skilled in the art have provided a portable, integrated intelligent urine collection and aspiration device to address the problems mentioned in the background section. Summary of the Invention
[0004] The purpose of this invention is to address the problems existing in the background art by proposing a portable integrated intelligent urine collection and suction device.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a portable integrated intelligent urine collection and suction device, comprising a urine collection box, a suction control box, a micro axial flow pump, a main control circuit board, and an external connecting pipe structure. The suction control box is located at the lower end of the urine collection box. The suction control box is equipped with a micro axial flow pump, a main control circuit board, and a magnetic charging interface. A micro lithium battery is installed inside one side of the suction control box. The outlet of the micro axial flow pump is provided with an external connecting pipe structure that penetrates the urine collection box. The housing of the micro axial flow pump contains a micro DC motor and an axial flow impeller.
[0006] Preferably, the urine collection box has a urine collection port at its upper end, and the cavity of the micro axial flow pump housing forms a watertight channel with the urine collection box. The lower end of the urine collection port has an ergonomically designed duckbill-shaped concave structure to improve the fit with the human body. Liquid flows into the urine collection box from the urine collection port, passes through the internal watertight channel, and then flows out from the outlet of the micro axial flow pump.
[0007] Preferably, the lower end of the urine collection box is equipped with an anti-blocking head, which is fastened to the urine collection box by adhesive bonding. An O-ring is provided on the male end of the lower end of the urine collection box. The suction control box is fastened to the urine collection box by adhesive bonding. The micro DC motor is fixed in the housing by adhesive bonding. The shaft of the micro motor and the housing are waterproofed and sealed with a sealing gasket and solid grease.
[0008] Preferably, the miniature lithium battery inside the suction control box is used to power the main control circuit board and the miniature motor. The miniature axial flow pump housing is also equipped with a contact liquid detection sensor, which is connected to the main control circuit board via two electrical signal lines.
[0009] Preferably, the cross-sectional shape of the inner cavity of the micro axial flow liquid pump housing is volute-shaped, and the cavity gradually expands in the same direction as the impeller rotation. When the micro motor drives the impeller to rotate clockwise, the liquid generates rotational motion and rapidly diffuses to the periphery of the impeller under the action of centrifugal force. Under the compression of the cavity, the liquid flows from the narrow cavity to the wide cavity, and finally flows from the straight cavity to the outlet. At the same time, a negative pressure zone is generated in the central area of the high-speed rotating impeller, which draws more liquid from the opening above the micro axial flow liquid pump housing.
[0010] Preferably, the liquid detection sensor is fastened to the housing of the miniature axial flow pump by adhesive bonding. At the same time, the cavity on the connecting wall is filled with sealant. The liquid detection sensor has two small through holes for installing electrical signal lines (metal probes or exposed wires). The electrical signal lines are fixed and sealed by filling the large cavity inside the liquid detection sensor with sealant. The two electrical signal lines are connected to the main control circuit board.
[0011] Preferably, the external pipe structure includes a pump output end pipe located at the outlet of the micro axial flow pump, a support ring sleeved on the outer wall of the pump output end pipe, an external threaded pipe located at one end of the support ring, an internal threaded pipe threaded on the outer wall of the external threaded pipe, and a trumpet-shaped pressure sleeve located at one end of the internal threaded pipe with its inner diameter gradually decreasing to one side.
[0012] Preferably, one end of the pump output pipe is provided with a tapered pipe with an outer diameter that gradually decreases to one side, and a pair of rigid pipe head-type outer pipe bodies are sleeved on the outside of the tapered pipe. The outer wall of the tapered pipe is sleeved with annular sealing plates that are distributed in a ring shape and at equal intervals.
[0013] Preferably, the outer wall of the pump output pipe is provided with multiple sets of support blocks arranged in a ring array. One side of the support ring is provided with a force arm arranged in a ring array. The inner wall of each force arm is provided with a base block. A rotating shaft is inserted into the base block and rotatably installed inside the support block. A torsion spring is sleeved on the outer side of the rotating shaft, with its two ends connected to the base block and the support block respectively. One end of the force arm is provided with a pressure strip that presses against the outer wall of the rigid pipe head-shaped outer pipe. The outer wall of the force arm is provided with a force rod. A ball bearing that rolls and fits against the pressure sleeve is rotatably installed on the outer wall of the force rod.
[0014] Preferably, the suction control box integrates an electrical system, which consists of a lithium battery, a charging interface, a liquid detection sensor, a micro DC motor, and a main control circuit. The main control circuit consists of a main control MCU (microcontroller), a lithium battery protection circuit, a charging management circuit, a liquid detection circuit, and a motor drive circuit. Once the electrical system is connected, the liquid detection circuit sends high and low level signals to the main control MCU by switching the two metal probes of the liquid detection sensor on and off. The main control MCU identifies whether there is liquid based on the high or low level signal, thereby controlling whether the motor drive circuit works, and then driving the micro DC motor to start or stop. Using this detection method and control logic, once all the liquid has been drawn out, the main control program can easily and flexibly control and adjust the turn-off delay of the micro DC motor. For example, after the liquid is drawn out, the liquid pump can be turned off after a five-second delay to discharge as much residual liquid as possible from the device cavity and hose pipes.
[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention integrates a micro lithium battery, a micro axial flow pump, a main control circuit board, a liquid detection sensor, and a charging interface into a single unit. The entire suction device only requires the insertion and installation of a guide tube at the external pipe structure to collect, suction, and finally discharge urine to a designated container. The integrated design makes it simpler and more flexible to wear. The design of the miniature axial flow pump allows for high-flow-rate diversion of the liquid by gravity, even when the lithium battery is depleted and the impeller has no rotational power, greatly improving the reliability of use. The design of the miniature axial flow pump is equivalent to adding a booster accelerator to the gravity-guided flow channel, which can further accelerate the flow rate of the liquid during operation, so that urine can be discharged more efficiently. Thanks to the structural design of this device, the power of the miniature axial flow pump does not need to be designed to be very large. A small lithium battery can meet the needs of stable operation and battery life of the device. The small components occupy less space, making the overall size of the suction device smaller and the appearance design more in line with the human body, which can protect the user's privacy to a great extent and reduce the feeling of foreign objects and discomfort when wearing it. Meanwhile, the external hose structure is compatible with various pipe diameters. The installation and disassembly are achieved by the threaded engagement and the compression of the sleeve to lock the force arm of the external hose, making the installation and disassembly of the external hose convenient and time-saving. Attached Figure Description
[0016] Figure 1 These are top and side views of the three-dimensional structure of the present invention; Figure 2 This is a side sectional perspective view of the suction control box of the present invention. Figure 3 This is a top-section three-dimensional structural diagram of the suction control box of the present invention; Figure 4 This is a top-section three-dimensional structural diagram of the miniature axial flow pump at point A of the present invention; Figure 5 This is a side sectional three-dimensional structural schematic diagram of the micro axial flow pump at point B of the present invention; Figure 6 This is a front-view perspective three-dimensional structural diagram of the external pipe structure of the present invention; Figure 7 This is a front-view perspective three-dimensional structural diagram of the internal structure of the compression sleeve and internally threaded tube of the present invention; Figure 8 This is a three-dimensional structural schematic diagram of the main cross-section of the connection between the pump output pipe and the rigid pipe head-type outer pipe body of the present invention. Figure 9 This is a three-dimensional structural schematic diagram of the main cross-section of the force arm and its surrounding structure according to the present invention; Figure 10 This is an electrical system diagram of the present invention.
[0017] Figure label: 1. Urine collection box; 101. Urine collection port; 2. Suction control box; 3. Miniature axial flow liquid pump; 301. DC motor; 302. Axial flow impeller; 303. Contact liquid detection sensor; 4. Magnetic charging interface; 5. Miniature lithium batteries; 6. Main control circuit board; 7. Anti-clogging head; 8. External pipe structure; 801. Pump output pipe; 802. Tapered pipe; 803. Annular sealing plate; 804. Rigid pipe head type external pipe body; 805. Internally threaded pipe; 806. Pressure sleeve; 807. Force arm; 808. Force rod; 809. Externally threaded pipe; 810. Ball bearing; 811. Support ring; 812. Rotating shaft; 813. Base block; 814. Support block; 815. Torsion spring; 816. Pressure strip. Detailed Implementation
[0018] 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 some embodiments of the present invention, and not all embodiments. 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.
[0019] Please see Figures 1 to 10 The present invention provides three embodiments: Example 1: A portable integrated intelligent urine collection and suction device includes a urine collection box 1, a suction control box 2, a micro axial flow pump 3, a main control circuit board 6, and an external pipe structure 8. The lower end of the urine collection box 1 is provided with the suction control box 2. The suction control box 2 is equipped with the micro axial flow pump 3, the main control circuit board 6, and a magnetic charging interface 4. A micro lithium battery 5 is installed inside one side of the suction control box 2. The outlet of the micro axial flow pump 3 is provided with an external pipe structure 8 that penetrates the urine collection box 1. The housing of the micro axial flow pump 3 contains a micro DC motor 301 and an axial flow impeller 302. The urine collection box 1 is provided with a urine collection port 101 at the upper end. The cavity of the housing of the micro axial flow pump 3 forms a watertight channel with the urine collection box 1. The lower end of the urine collection port 101 is provided with an ergonomically designed duckbill-shaped concave structure to improve the fit with the human body. Liquid flows into the urine collection box 1 from the urine collection port 101, and flows out from the outlet of the micro axial flow pump 3 after passing through the internal watertight channel. The lower end of the urine collection box 1 is equipped with an anti-blocking head 7, which is fastened to the urine collection box 1 by adhesive bonding. An O-ring is provided on the male end of the urine collection box 1. The suction control box 2 is fastened to the urine collection box 1 by adhesive bonding. The micro DC motor 301 is fixed in the housing by adhesive bonding. The shaft 812 of the micro motor and the housing are waterproofed and sealed with a sealing gasket and solid grease. The micro lithium battery 5 inside the suction control box 2 is used to power the main control circuit board 6 and the micro motor. The housing of the micro axial flow pump 3 is also equipped with a contact liquid detection sensor 303, which is connected to the main control circuit board 6 through two electrical signal lines. The cross-sectional shape of the inner cavity of the micro axial flow liquid pump housing is volute-shaped. The cavity gradually expands in the same direction as the impeller rotation. When the micro motor drives the impeller to rotate clockwise, the liquid generates rotational motion and spreads rapidly to the periphery of the impeller under the action of centrifugal force. Under the compression of the cavity, the liquid flows from the narrow cavity to the wide cavity, and finally flows from the straight cavity to the outlet. At the same time, a negative pressure zone is generated in the central area of the high-speed rotating impeller, which draws more liquid from the opening above the housing of the micro axial flow liquid pump 3. The liquid detection sensor is fastened to the housing of the miniature axial flow pump 3 by adhesive bonding. At the same time, the cavity on the connecting wall is filled with sealant. The liquid detection sensor has two small through holes for installing electrical signal lines (metal probes or bare wires). The electrical signal lines are fixed and sealed by filling the large cavity inside the liquid detection sensor with sealant. The two electrical signal lines are connected to the main control circuit board 6. In this embodiment, the micro lithium battery 5, the main control circuit board 6, the magnetic charging interface 4 and the micro axial flow pump 3 equipped with the contact liquid detection sensor 303 are first integrated and installed in the suction control box 2. The micro DC motor 301 and the axial flow impeller 302 are pre-fixed inside the housing of the micro axial flow pump 3, and the shaft 812 is waterproofed and sealed with a sealing gasket and solid grease. The anti-blocking head 7 is then fastened to the lower end of the urine collection box 1 by adhesive bonding. An O-ring is installed at the male end of the urine collection box 1. The suction control box 2 and the urine collection box 1 are then fastened together by adhesive bonding, so that the cavity of the micro axial flow pump 3 housing and the urine collection box 1 form a watertight channel. At the same time, the liquid detection sensor is connected to the main control circuit board 6 through two electrical signal lines (metal probe or bare wire). After the electrical signal lines are installed through the small through hole of the liquid detection sensor, they are fixed and sealed by glue in the large cavity. The cavity of the connecting wall is filled with sealant to ensure the overall sealing performance. Finally, the external pipe structure 8 is assembled at the outlet of the micro axial flow pump 3 to complete the overall assembly of the device. The device fits the human body through the duckbill-shaped concave structure at the upper end of the urine collection port 101, which conforms to the ergonomic design. After the urine flows into the urine collection box 1 from the collection port, it enters the micro axial flow pump 3 through the watertight channel. At this time, the two metal probes of the contact liquid detection sensor 303 generate a signal through liquid conduction. The liquid detection circuit transmits the high and low level signals to the main control MCU of the main control circuit board 6. The main control MCU then controls the motor drive circuit to start the micro DC motor 301, which drives the axial flow impeller 302 to rotate clockwise. The volute-shaped inner cavity of the shell gradually expands along the rotation direction of the impeller. Under the action of centrifugal force, the liquid diffuses to the impeller and flows from the narrow cavity to the wide cavity before being discharged from the outlet. At the same time, a negative pressure zone is formed in the central area of the impeller, continuously sucking in more liquid. If the lithium battery is low on power, the device can rely on the gravity of the liquid itself to achieve a large flow rate, ensuring continuous use. The integrated design makes wearable devices simpler and more flexible, eliminating the need for complex assembly. The miniature axial flow pump 3 combines pressurization and acceleration with gravity-guided flow, improving both fluid delivery efficiency and reliability. The low-power pump body, paired with a miniature lithium battery 5, makes the device compact and fits the human body, protecting user privacy and reducing the feeling of foreign objects and discomfort when wearing it. Multiple sealing structures, including O-rings, sealant, and 812 waterproof treatment on the rotating shaft, effectively prevent leakage. The anti-clogging head design reduces the risk of pipe blockage. It successfully solves the problems of traditional urine collection devices, such as cumbersome wearing, low fluid transfer efficiency, insufficient battery life, lack of privacy protection, and easy leakage and blockage. Through the linkage of intelligent detection and motor drive, it realizes the automated process of urine collection, suction, and discharge, providing convenient, comfortable, and reliable urine collection. This device is suitable for elderly people with limited mobility, bedridden patients, postoperative recovery groups, and outdoor workers. It can be quickly put on and used without complicated operations. The integrated design is compact and portable, and the duckbill-shaped concave surface conforms to the human body, making it comfortable to wear without any foreign body sensation. Intelligent detection and suction are linked, and gravity can guide the flow when the power is low, making the fluid collection efficient and reliable. The external tube is compatible with multiple diameter hoses, making disassembly and assembly convenient. The multi-seal structure prevents leakage and blockage, and the small-sized lithium battery provides stable power. Magnetic charging is convenient, protecting privacy and lowering the barrier to use, greatly improving the convenience and safety of urine collection.
[0020] Example 2: The external pipe structure 8 includes a pump output end pipe 801 located at the outlet of the micro axial flow pump 3, a support ring 811 sleeved on the outer wall of the pump output end pipe 801, an external threaded pipe 809 located at one end of the support ring 811, an internal threaded pipe 805 threaded on the outer wall of the external threaded pipe 809, and a trumpet-shaped pressure sleeve 806 located at one end of the internal threaded pipe 805 with its inner diameter gradually decreasing to one side. One end of the pump output pipe 801 is provided with a tapered pipe 802 whose outer diameter gradually decreases to one side. A rigid pipe head type outer pipe body 804 is sleeved on the outside of the tapered pipe 802. Annular sealing plates 803 are sleeved on the outer wall of the tapered pipe 802 in an annular shape and evenly distributed. The outer wall of the pump output pipe 801 is provided with multiple sets of support blocks 814 arranged in a ring array. One side of the support ring 811 is provided with force arms 807 arranged in a ring array. The inner wall of each force arm 807 is provided with a bottom block 813. A rotating shaft 812 rotatably installed inside the support block 814 is inserted into the bottom block 813. A torsion spring 815 is sleeved on the outside of the rotating shaft 812, with its two ends connected to the bottom block 813 and the support block 814 respectively. One end of the force arm 807 is provided with a pressure strip 816 that presses against the outer wall of the rigid pipe head type outer pipe body 804. The outer wall of the force arm 807 is provided with a force rod 808. A ball bearing 810 that rolls against the pressure sleeve 806 is rotatably installed on the outer wall of the force rod 808. In this embodiment, firstly, a pump output pipe 801 is assembled at the outlet of the micro axial flow pump 3. One end of the pump output pipe 801 is processed into a tapered pipe 802 with a gradually decreasing outer diameter. Multiple sets of annularly distributed annular sealing plates 803 are sleeved on the outer wall of the tapered pipe 802. Then, multiple sets of annularly distributed support blocks 814 are fixed on the outer wall of the pump output pipe 801. Subsequently, the support ring 811 is sleeved onto the outer wall of the pump output pipe 801. A ring array of force arms 807 is installed on one side of the support ring 811. The bottom block 813 on the inner wall of the force arm 807 is rotatably connected to the support block 814 through the rotating shaft 812. The outer side of the rotating shaft 812 is sleeved with a torsion spring 815 that connects the bottom block 813 and the support block 814 respectively. At the same time, a pressure strip 816 is fixed at one end of the force arm 807, and a force rod 808 is installed on the outer wall. The outer wall of the force rod 808 is rotatably fitted with a ball bearing 810 that rolls and fits against the subsequent pressure sleeve 806. Next, fix the external threaded tube 809 to one end of the support ring 811, connect the flared sleeve 806 with the inner diameter gradually decreasing to one side to one end of the internal threaded tube 805, and finally thread the internal threaded tube 805 onto the outer wall of the external threaded tube 809 to complete the overall assembly of the external tube structure 8. During assembly, the corresponding installation method can be selected according to the diameter of the external hose to ensure connection stability. The working principle of the external pipe structure 8 relies closely on the linkage of the mechanical structure. When it is necessary to connect the rigid pipe head type external pipe body 804, it is sleeved on the outside of the tapered pipe 802. The annular sealing plate 803 first achieves a preliminary seal. Then, the internal threaded pipe 805 is rotated to drive the pressure sleeve 806 to move towards the force arm 807. Since the pressure sleeve 806 is flared, its inner wall will gradually squeeze the ball 810 on the force rod 808, forcing the force arm 807 to rotate inward around the rotating shaft 812. The torsion spring 815 is compressed, and the pressure strip 816 at one end of the force arm 807 is then tightly pressed against the outer wall of the rigid pipe head type external pipe body 804 to achieve a firm lock. When disassembly is required, the internal threaded tube 805 is rotated in the reverse direction, the squeezing force of the pressure sleeve 806 on the ball 810 disappears, the torsion spring 815 returns to its original deformation and drives the force arm 807 to reset, and the pressure strip 816 loosens the outer tube body, which can be easily removed. This structural design allows the outer tube structure 8 to be adapted to external hoses of various diameters. The dual function of the annular sealing plate 803 and the pressure strip 816 ensures the sealing of the connection and avoids leakage during the liquid guiding process. The engagement of the thread and the reset of the torsion spring 815 make the installation and disassembly of the external hoses free of complicated tools, making the operation convenient and time-saving. Significant advantages are achieved through the optimization of the external pipe structure 8. The design of its multiple sets of annular sealing plates 803 and pressure strips 816 solves the problems of poor sealing and easy leakage in the traditional external pipe and hose connection. It is adaptable to multiple pipe diameters, breaking the limitation of single pipe diameter adaptation and improving the versatility and applicable scenarios of the device. The disassembly and assembly method of thread drive and torsion spring 815 linkage is simpler and faster than the traditional snap or adhesive connection, reducing the difficulty of operation for users. This structure successfully makes up for the defects of poor adaptability, cumbersome disassembly and assembly, and unreliable sealing of the external pipe of the traditional urine collection device. It complements the overall portable integrated design of the device, further improving the practicality of the device and user experience, ensuring that the urine is sealed and efficiently transmitted throughout the export process, and providing a reliable connection for the stable operation of the device.
[0021] Example 3: The suction control box 2 integrates an electrical system, which consists of a lithium battery, a charging interface, a liquid detection sensor, a micro DC motor 301, and a main control circuit. The main control circuit consists of a main control MCU (microcontroller), a lithium battery protection circuit, a charging management circuit, a liquid detection circuit, and a motor drive circuit. Once the electrical system is connected, the liquid detection circuit sends high and low level signals to the main control MCU by switching the two metal probes of the liquid detection sensor on and off. The main control MCU identifies whether there is liquid based on the high or low level signal, thereby controlling whether the motor drive circuit works, and then driving the micro DC motor 301 to start or stop. With this detection method and control logic, once all the liquid has been drawn out, the main control program can easily and flexibly make precise control and flexible adjustment of the turn-off delay of the micro DC motor 301. For example, after the liquid is drawn out, the liquid pump can be turned off after a five-second delay to discharge the residual liquid in the device cavity and hose pipes as much as possible.
[0022] In this embodiment, firstly, the main control circuit is built according to the design scheme. The main control MCU (microcontroller), lithium battery protection circuit, charging management circuit, liquid detection circuit and motor drive circuit are integrated and soldered on the main control circuit board 6 to ensure that the wiring of each circuit module is accurate and the contact is good. Subsequently, the micro lithium battery 5 is installed inside one side of the suction control box 2, and is connected to the lithium battery protection circuit and charging management circuit on the main control circuit board 6 by wires. At the same time, the magnetic charging interface 4 is fixed in the reserved position of the suction control box 2 and connected to the charging management circuit to realize the adaptation of power supply and charging functions. Next, the two electrical signal lines (metal probes or bare wires) of the contact liquid detection sensor 303, which has been fixed by adhesive bonding and sealed, are connected to the liquid detection circuit of the main control circuit board 6, and the micro DC motor 301 in the micro axial flow pump 3 is reliably connected to the motor drive circuit. Finally, all wiring nodes are insulated and combined with the overall sealing design of the device, such as filling the cavity of the connecting wall with sealant, the overall assembly of the electrical system is completed. At the same time, the control program is preset in the main control MCU to set the liquid detection signal recognition logic and the power off delay parameters, such as a five-second delay after suction is completed. The electrical system relies on the coordinated operation of various circuit modules and components. The micro lithium battery 5 serves as the core power supply unit, continuously providing stable power to the main control circuit board 6 and the micro DC motor 301. The charging management circuit is responsible for regulating the charging process of the magnetic charging interface 4, while the lithium battery protection circuit effectively prevents overcharging and over-discharging of the battery, ensuring the safe operation of the electrical system. When urine enters the device and comes into contact with the liquid detection sensor, the two metal probes inside the sensor are connected by the liquid. The liquid detection circuit then sends a low-level signal to the main control MCU. When there is no liquid, the signal is high-level. The main control MCU determines the presence of liquid to be aspirated in the device by recognizing the change in the signal level. This triggers the motor drive circuit to start the micro DC motor 301, which in turn drives the axial impeller 302 to rotate and achieve aspiration. After the liquid is aspirated, the metal probes return to the disconnected state. The main control MCU receives the high-level signal and starts the shutdown delay mechanism according to the preset program. After the delay ends, the motor drive circuit is stopped to ensure that the residual liquid in the device cavity and external hose is fully discharged, thus achieving automated closed-loop control of the aspiration process. It achieves intelligent automation of the suction process, completing liquid detection, motor start / stop and residual liquid discharge without manual intervention, greatly reducing the difficulty of operation for users; the flexible programming characteristics of the main control MCU allow the motor shutdown delay to be precisely adjusted according to actual needs, making it more adaptable than traditional fixed-mode devices. The integration of the lithium battery protection circuit and the charging management circuit not only extends the service life of the micro lithium battery 5, but also improves the charging convenience through the magnetic charging interface 4, ensuring the device's stable battery life. The electrical system, in conjunction with the overall sealed design of the device, effectively prevents damage to electrical components from liquid leakage, thus improving safety. This system successfully solves the problems of traditional urine collection devices, such as the need for manual control, easy residue of liquid, poor battery reliability, and susceptibility of electrical components to short circuits due to liquid. Through deep collaboration between the electrical system and the mechanical structure, the portability, intelligence, and practicality of the device are further enhanced, making the urine collection process more efficient, worry-free, and safe.
[0023] The above specific embodiments are merely several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
[0024] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A portable integrated intelligent urine collection and suction device, comprising a urine collection box (1), a suction control box (2), a micro axial flow pump (3), a main control circuit board (6), and an external pipe structure (8), characterized in that: The lower end of the urine collection box (1) is provided with a suction control box (2). The suction control box (2) is equipped with a micro axial flow pump (3), a main control circuit board (6) and a magnetic charging interface (4). A micro lithium battery (5) is installed inside one side of the suction control box (2). The outlet of the micro axial flow pump (3) is provided with an external pipe structure (8) that penetrates the urine collection box (1). The housing of the micro axial flow pump (3) contains a micro DC motor (301) and an axial flow impeller (302).
2. The portable integrated intelligent urine collection and suction device according to claim 1, characterized in that: The urine collection box (1) is provided with a urine collection port (101) at the upper end. The cavity of the housing of the micro axial flow pump (3) forms a watertight channel with the urine collection box (1). The lower end of the urine collection port (101) is provided with a duckbill-shaped concave structure that conforms to ergonomic design to improve the fit with the human body. Liquid flows into the urine collection box (1) from the urine collection port (101) and flows out from the outlet of the micro axial flow pump (3) after passing through the internal watertight channel.
3. The portable integrated intelligent urine collection and suction device according to claim 1, characterized in that: The lower end of the urine collection box (1) is equipped with an anti-blocking head (7), which is fastened to the urine collection box (1) by adhesive bonding. An O-ring is provided on the male end of the lower end of the urine collection box (1). The suction control box (2) is fastened to the urine collection box (1) by adhesive bonding. The micro DC motor (301) is fixed in the housing by adhesive bonding. The shaft (812) of the micro motor and the housing are waterproofed and sealed with a sealing gasket and solid grease.
4. The portable integrated intelligent urine collection and suction device according to claim 1, characterized in that: The micro lithium battery (5) inside the suction control box (2) is used to power the main control circuit board (6) and the micro motor. The micro axial flow pump (3) is also equipped with a contact liquid detection sensor (303). The contact liquid detection sensor (303) is connected to the main control circuit board (6) through two electrical signal lines.
5. A portable integrated intelligent urine collection and suction device according to claim 1, characterized in that: The cross-sectional shape of the inner cavity of the micro axial flow liquid housing is volute-shaped. The cavity gradually expands in the same direction as the impeller rotation. When the micro motor drives the impeller to rotate clockwise, the liquid generates rotational motion and spreads rapidly to the periphery of the impeller under the action of centrifugal force. Under the compression of the cavity, the liquid flows from the narrow cavity to the wide cavity, and finally flows from the straight cavity to the outlet. At the same time, a negative pressure zone is generated in the central area of the high-speed rotating impeller, which draws more liquid from the opening above the housing of the micro axial flow liquid pump (3).
6. A portable integrated intelligent urine collection and suction device according to claim 4, characterized in that: The liquid detection sensor is fastened to the housing of the micro axial flow pump (3) by adhesive bonding. At the same time, the cavity on the connecting wall is filled with sealant. The liquid detection sensor has two small through holes. The two small through holes in the liquid detection sensor are used to install electrical signal lines (metal probes or bare wires). The electrical signal lines are fixed and sealed by filling the large cavity in the liquid detection sensor with sealant. The two electrical signal lines are connected to the main control circuit board (6).
7. A portable integrated intelligent urine collection and suction device according to claim 1, characterized in that: The external pipe structure (8) includes a pump output end pipe (801) located at the outlet of the micro axial flow pump (3), a support ring (811) sleeved on the outer wall of the pump output end pipe (801), an external threaded pipe (809) located at one end of the support ring (811), an internal threaded pipe (805) threaded on the outer wall of the external threaded pipe (809), and a trumpet-shaped pressure sleeve (806) located at one end of the internal threaded pipe (805) with its inner diameter gradually decreasing to one side.
8. A portable integrated intelligent urine collection and suction device according to claim 7, characterized in that: One end of the pump output pipe (801) is provided with a tapered pipe (802) whose outer diameter gradually decreases to one side. A rigid pipe head type outer pipe body (804) is sleeved on the outside of the tapered pipe (802). An annular sealing sheet (803) is sleeved on the outer wall of the tapered pipe (802) and is distributed at equal intervals.
9. A portable integrated intelligent urine collection and suction device according to claim 8, characterized in that: The outer wall of the pump output pipe (801) is provided with a plurality of support blocks (814) arranged in a ring array. One side of the support ring (811) is provided with a force arm (807) arranged in a ring array. The inner wall of each force arm (807) is provided with a bottom block (813). A rotating shaft (812) is inserted into the bottom block (813) and rotatably installed inside the support block (814). A torsion spring (815) is sleeved on the outside of the rotating shaft (812) and its two ends are respectively connected to the bottom block (813) and the support block (814). One end of the force arm (807) is provided with a pressure strip (816) that presses against the outer wall of the rigid pipe head type outer pipe body (804). The outer wall of the force arm (807) is provided with a force rod (808). The outer wall of the force rod (808) is rotatably installed with a ball (810) that rolls against the pressure sleeve (806).
10. A portable integrated intelligent urine collection and suction device according to claim 1, characterized in that: The suction control box (2) integrates an electrical system, which consists of a lithium battery, a charging interface, a liquid detection sensor, a micro DC motor (301), and a main control circuit. The main control circuit consists of a main control MCU (microcontroller), a lithium battery protection circuit, a charging management circuit, a liquid detection circuit, and a motor drive circuit. Once the electrical system is connected, the liquid detection circuit sends high and low level signals to the main control MCU by switching the two metal probes of the liquid detection sensor on and off. The main control MCU identifies whether there is liquid based on the high or low level signal, thereby controlling whether the motor drive circuit works, and then driving the micro DC motor (301) to start or stop. With this detection method and control logic, after all the liquid has been drawn out, the main control program can easily and flexibly make precise control and flexible adjustment of the turn-off delay of the micro DC motor (301). For example, after the liquid is drawn out, the liquid pump is turned off after a five-second delay to discharge the residual liquid in the device cavity and hose pipes as much as possible.