A micro-liquid peristaltic pump, a urine testing device, and a toilet

Abstract

A micro-liquid peristaltic pump, a urine testing device, and a toilet are disclosed. The pump includes a main body with a liquid chamber, a first hole, and a second hole communicating with the liquid chamber. The pump further includes a movable rod, a drive assembly, a detection element group, and a control unit. The movable rod is axially movable within the main body, with one end inserted into the liquid chamber. The detection element group is disposed on the main body to detect the liquid level in the liquid chamber and the position of the movable rod. The drive assembly drives the movable rod to move. The control unit is connected to the detection element group and the drive assembly to control the drive assembly to operate based on the position and liquid level information, causing the liquid chamber to draw or drain liquid. This device enables precise injection of micro-liquids, is compact, has a simple structure, and ensures operational accuracy. It can also be applied to smart toilets for urine testing.

Description

Technical Field

[0001] This invention relates to the field of peristaltic pumps, and in particular to a micro-liquid peristaltic pump, a urine testing device, and a toilet. Background Technology

[0002] A peristaltic pump, a commonly used device, consists of a driver, a pump head, and a pump tube. It is a liquid delivery device that controls the flow rate. The driver drives the rollers inside the pump head to rotate, which alternately squeezes and releases the elastic delivery hose to pump fluid. As the rollers rotate, the elasticity of the hose causes the pump tube to continuously return to its original shape, creating a negative pressure at the pump inlet, which promotes the flow of liquid and fills the pipe, thus achieving the purpose of transmission.

[0003] Currently, smart toilets have incorporated urine testing devices that utilize peristaltic pumps for urine collection and injection. However, most existing peristaltic pumps have relatively complex structures and large sizes, making them difficult to adapt to the working environment of smart toilets. Furthermore, the peristaltic pump motors are susceptible to voltage instability, resulting in inconsistent rotation. The tightness of the pump tubing can also cause variations in the sample injection volume. Additionally, there is the issue of decreased accuracy due to tubing aging. Summary of the Invention

[0004] The main objective of this invention is to overcome the shortcomings of existing peristaltic pumps, such as complex structure, large size, and insufficient precision, and to propose a micro-liquid peristaltic pump, urine testing device, and toilet that are small in size and highly precise.

[0005] The present invention adopts the following technical solution:

[0006] A micro-liquid peristaltic pump includes a body, the body having a liquid chamber, a first hole, and a second hole, the first hole and the second hole communicating with the liquid chamber. The pump is characterized by further including a movable rod, a drive assembly, a detection element group, and a control unit. The movable rod is axially movable within the body, with one end inserted into the liquid chamber. The detection element group is disposed on the body to detect the liquid level information of the liquid chamber and the position information of the movable rod. The drive assembly drives the movable rod to move. The control unit is connected to the detection element group and the drive assembly to control the drive assembly to operate according to the position information and the liquid level information, causing the liquid chamber to draw in or drain liquid.

[0007] Preferably, it further includes a first detection element and a second detection element, the first detection element and the second detection element being mounted on the body to detect the liquid level information and the position information respectively; the control unit is connected to the first detection element and the second detection element to control the movement displacement of the movable rod according to the position information and / or the liquid level information.

[0008] Preferably, the movable rod is provided with a positioning post on its outer periphery, and the second detection element is fixed to the outer periphery of the main body to detect the position information of the positioning post.

[0009] Preferably, the movable rod is provided with a limiting post on its outer periphery, and a limiting component is fixed on the main body. The limiting component is sleeved on the movable rod and is provided with a limiting hole extending along its axial direction. The limiting post is located in the limiting hole.

[0010] Preferably, the movable rod is provided with an axially extending transmission hole; the drive assembly includes a motor and a screw, the output shaft of the motor is connected to the screw, and the screw is inserted into the transmission hole and threadedly engaged with it to achieve transmission.

[0011] Preferably, the body includes an upper shell and a base, the base is fixed to one end of the upper shell and has the liquid cavity, the first hole and the second hole; the drive assembly is installed at the other end of the upper shell; the movable rod passes through the upper shell and one end of it is inserted into the base; the liquid level sensor is installed on the base.

[0012] A urine testing device includes a housing and a urine analysis component, the urine analysis component being located within the housing. The device is characterized by further including a micro-liquid peristaltic pump; a first port is connected to an adapter, the adapter having several connectors communicating with a liquid chamber; a second port is connected to the urine analysis component to deliver urine to the urine analysis component; and a control unit is also connected to the urine analysis component to obtain analysis results.

[0013] Preferably, it further includes an injection assembly and an injection valve, the injection valve being connected between the second hole and the injection assembly, and the injection assembly being connected to the urine analysis assembly.

[0014] Preferably, a mounting base is also provided, and the housing is covered outside the mounting base; the urine analysis component is mounted on the mounting base and includes a test strip box, an optical analysis unit, and a drive motor; the test strip box is configured to be rotatable and has a plurality of test strip holders for injecting urine, and the drive motor drives the test strip box to rotate so that one of the test strip holders to be injected with urine is opposite to the injection component; the optical analysis unit is located on one side of the test strip box to analyze the test strip on the test strip on the opposite test strip holder with injected urine.

[0015] Preferably, the test strip holder has an axially through mounting groove inside, and rubber sleeves are provided at both ends of the test strip holder to close the two ends of the mounting groove. The test strip is located in the mounting groove. The liquid injection assembly includes a urine injection needle and a venting needle, which are located at both ends of the test strip box. The urine injection needle and the venting needle can be manipulated to be inserted into the corresponding rubber sleeve to communicate with the mounting groove.

[0016] Preferably, the test strip box has a frame and two fixed covers. The frame also has several circumferentially distributed grooves, and several test strip holders are detachably embedded in the corresponding grooves. The two fixed covers are respectively fitted onto both ends of the frame, and one of the fixed covers has a transmission part. The drive motor is connected to drive the transmission part to rotate the frame.

[0017] Preferably, one of the fixed covers may also be provided with a plurality of circumferentially distributed positioning grooves; the urine analysis component is further provided with a bracket, a limiting rod, a top rod and an elastic element, the bracket is fixed relative to the mounting base and is provided with a receiving groove, the limiting rod is rotatably connected to the bracket and is provided with a hook, the top rod is movably disposed in the receiving groove and abuts against the limiting rod, the elastic element is sleeved on the top rod and one end abuts against the inner wall of the receiving groove, and the other end abuts against the top rod to drive the top rod to push the limiting rod so that its hook is embedded in the corresponding positioning groove to position the test strip box.

[0018] Preferably, one sidewall of the positioning groove may be provided with an inclined surface, which extends radially outward from the inner wall of the positioning groove and is inclined circumferentially.

[0019] Preferably, it also includes a water inlet valve, the water outlet of which is connected to the second hole, and the control unit is connected to the water inlet valve; the water inlet valve, the second hole, the liquid injection assembly, and the liquid injection valve constitute a cleaning system.

[0020] Preferably, it also includes a third control valve and a liquid storage box, the liquid storage box being used to store cleaning agent, and the third control valve being connected between the liquid storage box and the connector.

[0021] Preferably, it further includes a first control valve, a second control valve, and a vacuum pump, wherein the first control valve is connected to one of the connectors, and the second control valve is connected between the other connector and the vacuum pump.

[0022] A toilet with a urine testing device includes a toilet body, a base assembly, and a cover. The base assembly is installed at the rear of the toilet body, and the cover is installed on the base and the top of the toilet body. The toilet is characterized by further including the aforementioned urine testing device and a urine collection valve. The base assembly has a slot, the urine testing device is installed in the slot, and the urine collection valve is connected to the urine testing device to collect urine.

[0023] As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. In this invention, a main body, a movable rod, a drive assembly, a detection element group, and a control unit are provided. The movable rod is axially movable within the main body, with one end inserted into the liquid chamber. The detection element group is disposed on the main body to detect the liquid level information of the liquid chamber and the position information of the movable rod. The control unit is connected to the detection element group and the drive assembly to control the drive assembly to work according to the position information and liquid level information, so that the liquid chamber can draw or discharge liquid. It can complete the precise injection of micro-volume liquids, is compact in size, has a simple structure, and ensures working accuracy.

[0025] 2. In this invention, the detection element group includes a first detection element and a second detection element. The first detection element and the second detection element detect liquid level information and position information respectively, ensuring more accurate liquid aspiration and drainage, and the liquid injection range can be adjusted according to needs.

[0026] 3. In this invention, the movable rod is provided with a positioning post and a limiting post on its outer periphery. The second detection element determines the position of the movable rod by detecting the position information of the positioning post. A limiting sleeve is provided inside the main body. The movable rod is guided by the limiting member moving along the limiting hole of the limiting sleeve, which ensures that the movement of the movable rod is more reliable and the detected position information is more accurate.

[0027] 4. In this invention, the urine testing device includes a housing, a urine analysis component, and a micro-liquid peristaltic pump. The micro-liquid peristaltic pump is connected to the urine analysis component to deliver urine to the urine analysis component. The control unit is also connected to the urine analysis component to obtain the analysis results. This modular urine testing device can be applied to smart toilets.

[0028] 5. The present invention also includes an injection assembly and an injection valve. The injection valve is connected between the second hole and the injection assembly. The injection assembly is connected to the urine analysis assembly. The urine is delivered to the urine analysis assembly through the connection of the injection assembly, the injection valve and the urine analysis assembly. The structure is simple and the operation is convenient.

[0029] 6. In this invention, the urine analysis component includes a test strip box, an optical analysis unit, and a drive motor. The test strip box is rotatable and has several test strip holders for injecting urine. The drive motor drives the test strip box to rotate so that one of the test strip holders to be injected with urine is opposite to the injection component. The optical analysis unit is located on one side of the test strip box to analyze the test strip on the test strip holder with injected urine opposite it. This structure enables intelligent urine analysis and can automatically switch test strip holders, making it ingenious.

[0030] 7. In this invention, the test strip holder has an internal mounting groove, and rubber sleeves are provided at both ends of the test strip holder to seal the two ends of the mounting groove. The test strip is located in the mounting groove. The liquid injection assembly includes a urine injection needle and a venting needle, which can be manipulated to be inserted into the corresponding rubber sleeve to communicate with the mounting groove. This structure allows a small amount of urine to be injected into the corresponding test strip holder and can prevent urine leakage. The test strip box also has a frame and two fixed covers. The frame has several circumferentially distributed grooves, and several test strip holders can be detachably embedded in the corresponding grooves, making disassembly and assembly convenient. The two fixed covers are respectively fitted onto both ends of the frame, and the drive motor is connected to drive the transmission part on the fixed cover to rotate the frame. The structure is compact.

[0031] 8. In this invention, the urine analysis component is further provided with a bracket, a limiting rod, a top rod, and an elastic element. The limiting rod is rotatably connected to the bracket and is provided with a hook. The top rod is movable and abuts against the limiting rod. The elastic element drives the top rod to push the limiting rod so that its hook is embedded in the corresponding positioning groove to position the test strip box, thereby preventing the test strip box from shifting and affecting the injection of urine and urine analysis.

[0032] 9. The present invention also includes an air pump and a cleaning valve, which together with the liquid chamber, the injection component and the injection valve constitute a cleaning system to facilitate air cleaning of the relevant urine collection and injection pipes; it also includes a water inlet valve, which together with the liquid chamber, the injection component and the injection valve constitute a cleaning system to facilitate cleaning of the relevant pipes and avoid urine residue that may affect the urine test results. Attached Figure Description

[0033] Figure 1 This is a structural diagram of the peristaltic pump of the present invention;

[0034] Figure 2 for Figure 1 Side view;

[0035] Figure 3 for Figure 1 Exploded view;

[0036] Figure 4 This is a structural diagram of the movable rod;

[0037] Figure 5 This is a side view of the movable rod;

[0038] Figure 6 A 3D diagram of the movable rod;

[0039] Figure 7 This is a top view of the movable rod;

[0040] Figure 8 for Figure 2 AA sectional view (first endpoint position);

[0041] Figure 9 for Figure 2AA section view (second endpoint position);

[0042] Figure 10 This is a flow chart of the peristaltic pump suction process of the present invention;

[0043] Figure 11 This is a flow chart of the peristaltic pump drainage process of the present invention;

[0044] Figure 12 This is a perspective view of the urine testing device of the present invention;

[0045] Figure 13 for Figure 12 The main view;

[0046] Figure 14 for Figure 12 Exploded view;

[0047] Figure 15 for Figure 13 AA section view;

[0048] Figure 16 This is a diagram illustrating the installation of the test strip box;

[0049] Figure 17 This is an exploded view of the test strip box;

[0050] Figure 18 This is an exploded view of the test strip holder;

[0051] Figure 19 This is a schematic diagram of the control principle of the urine testing device of the present invention;

[0052] Figure 20 This is an exploded view of the toilet of the present invention;

[0053] Figure 21 This is a cross-sectional view of the toilet.

[0054] in:

[0055] 10. Body, 11. Upper shell, 12. Base, 13. Liquid chamber, 14. First hole, 15. Second hole, 16. Sealing assembly, 17. Limiting component, 17a. Limiting hole, 18. Compensating ring, 19. Adapter, 19a. Connector, 20. Movable rod, 21. Transmission hole, 22. Limiting post, 23. Positioning post, 24. Air hole, 30. Drive assembly, 31. Motor, 32. Screw, 40. Detection element group, 41. First detection element, 42. Second detection element, 50. Control unit, 60. Housing, 61. First housing, 61a. Flip cover, 62. Second housing, 63. Mounting base, 64. Liquid storage box, 65. Liquid filling box, 66. First interface, 67. Second interface, 68. Third interface, 69. Fourth interface, 70. Urine analysis assembly, 71. Test strip box, 7 2. Optical analysis unit; 73. Drive motor; 74. Test paper holder; 74a. Mounting slot; 74b. Rubber sleeve; 75. Test paper; 76. Frame; 77. Fixing cover; 77a. Transmission part; 77b. Positioning slot; 77c. Inclined surface; 78. Groove; 79. Bracket; 79a. Limiting rod; 79b. Top rod; 79c. Elastic element; 79d. Receiving groove; 79e. Hook; 80. True 81. Air pump, 82. First control valve, 83. Second control valve, 84. Air pump, 85. Cleaning valve, 86. Water inlet valve, 87. Urine collection valve, 88. Third control valve, 91. Injection valve, 92. Urine injection needle, 93. Air vent needle, 94. Valve assembly, 100. Bucket body, 101. Base assembly, 102. Cover, 103. Empty trough, 104. Toilet bowl, 105. Diverter valve, 106. Cover plate.

[0056] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Detailed Implementation

[0057] The present invention will be further described below through specific embodiments.

[0058] In this invention, the terms "first," "second," and "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. The use of terms such as "upper," "lower," "left," "right," "front," and "rear" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings and is only for the convenience of describing the invention, not to indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the scope of protection of this invention. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0059] Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0060] See Figures 1 to 9 A micro-liquid peristaltic pump includes a body 10, a movable rod 20, a drive assembly 30, a detection element group 40, and a control unit 50. The body 10 may be a hollow structure, having a liquid chamber 13, a first hole 14, and a second hole 15, which communicate with the liquid chamber 13. The body 10 may be an integral structure or a split structure. Taking a split structure as an example, the body 10 may include an upper shell 11 and a base 12. One end of the upper shell 11 is closed, and the other end is open. The base 12 is fixed to the open end of the upper shell 11 and has the aforementioned liquid chamber 13, first hole 14, and second hole 15. To better connect the inlet or outlet pipes, the number of first holes 14 and second holes 15 can be set as needed, and there may be at least one. Alternatively, the first holes 14 or second holes 15 can be connected via adapters to branch out to connect multiple branches. The size of the liquid chamber 13 can be set according to requirements and is not limited here.

[0061] The movable rod 20 is axially movable within the body 10, with one end inserted into the liquid cavity 13. Specifically, the movable rod 20 is axially movable through the upper shell 11, and its end relative to the base 12 can be inserted into the liquid cavity 13 of the base 12. Furthermore, a sealing assembly 16 is fixedly provided at the end of the base 12 relative to the upper shell 11 to seal against the movable rod 20, preventing liquid from the liquid cavity 13 from entering the upper shell 11.

[0062] The drive assembly 30 is connected to drive the movable rod 20 to move. When the first hole 14 and the second hole 15 are not connected to the outside atmosphere, the pressure in the liquid chamber 13 can change during the movement of the movable rod 20. When the movable rod 20 moves away from the base 12, the pressure in the liquid chamber 13 decreases and a negative pressure can be generated. When the movable rod 20 moves towards the base 12, the space in the liquid chamber 13 shrinks and the pressure can increase.

[0063] The drive assembly 30 of the present invention is installed at the other end of the upper shell 11, that is, the end away from the base 12. The drive assembly 30 and the movable rod 20 can be connected by a common transmission method such as threaded drive. Specifically, the movable rod 20 has an axially extending transmission hole 21. The drive assembly 30 includes a motor 31 and a screw 32. The output shaft of the motor 31 is connected to the screw 32, and the screw 32 is inserted into the transmission hole 21 and threadedly engaged therewith to achieve transmission. In addition, the movable rod 20 has an air hole 24, which communicates with the transmission hole 21, allowing the transmission hole 21 to communicate with the outside atmosphere.

[0064] Furthermore, to ensure that the movement of the movable rod 20 is more accurate and reliable, a limiting post 22 is provided on the outer periphery of the movable rod 20, and a limiting member 17 is fixed inside the upper shell 11 of the body 10. The limiting member 17 is sleeved on the outside of the movable rod 20 and has a limiting hole 17a extending along its axial direction. The limiting post 22 is located inside the limiting hole 17a. That is, when the movable rod 20 moves, the limiting post 22 can move along the limiting hole 17a to play a guiding role.

[0065] A detection element group 40 is disposed on the body 10 to detect the liquid level information of the liquid chamber 13 and the position information of the movable rod 20. The detection element group 40 may include a first detection element 41 and a second detection element 42. The first detection element 41 may be a liquid level sensor, which can be mounted on the base 12 to detect the liquid level information within the liquid chamber 13. The second detection element 42 is mounted on the upper shell 11 of the body 10 to detect the position information of the movable rod 20. The second detection element 42 may be a photoelectric position sensor.

[0066] To more accurately detect the position information of the movable rod 20, a positioning post 23 can be provided on the outer periphery of the movable rod 20, and a slot can be provided on the outer periphery of the upper shell 11 to accommodate the positioning post 23. The second detection element 42 is fixed to the outer periphery of the upper shell 11 of the body 10, and the position information of the movable rod 20 can be obtained by detecting the position information of the positioning post 23. In practical applications, a compensation ring 18 is also provided, which is fixedly set at one end of the upper shell 11 opposite to the base 12 and sleeved on the outside of the movable rod 20.

[0067] The control unit 50 is connected to the detection element group 40 and the drive assembly 30 to control the drive assembly 30 to operate based on position and liquid level information, causing the liquid chamber 13 to draw in or drain liquid. The specific working principle is as follows:

[0068] Liquid aspiration process: Connect the first hole 14 to the liquid supply structure beforehand, and seal the second hole 15; see [link / reference] Figure 10The second detection element 42 detects the position information of the positioning post 23. The control unit 50 determines whether the movable rod 20 is at the first endpoint position based on this position information. If it is, the control unit 50 controls the drive assembly 30 to move the movable rod 20 a set distance away from the base 12, creating negative pressure in the liquid chamber 13 to achieve liquid aspiration. The liquid enters the liquid chamber 13 through the first hole 14. If it is not at the first endpoint position, the position information is recorded, and the control unit 50 controls the drive assembly 30 to move the movable rod 20 until it reaches the first endpoint position. The first detection element 41 obtains the liquid level information to determine whether the set liquid level has been reached. If so, liquid aspiration is complete; otherwise, an error is reported. The first endpoint position refers to the upper limit position of the movable rod 20 moving away from the base 12. See [link to relevant documentation]. Figure 8 .

[0069] Drainage process: First hole 14 is sealed beforehand, and second hole 15 is opened; see [link / reference] Figure 11 The first detection element 41 detects the liquid level information in the liquid chamber 13. The control unit 50 determines whether the preset liquid level has been reached. If not, an abnormality is reported. If so, the control unit 50 controls the drive assembly 30 to move the movable rod 20 a set distance, allowing the liquid in the liquid chamber 13 to be discharged from the second hole 15. The second detection element 42 detects the position information of the positioning post 23. The control unit 50 determines whether the movable rod 20 is at the second endpoint position. If so, the drainage ends. If not, the position information is recorded, and the control unit 50 controls the drive assembly 30 to move the movable rod 20 until it reaches the second endpoint position. The second endpoint position refers to the lower limit position of the movable rod 20 moving towards the base 12. See [link to relevant documentation]. Figure 9 .

[0070] In practical applications, the second hole 15 can be used for drainage and the first hole 14 for suction, or the first hole 14 can be used for both drainage and suction, or the second hole 15 can be used for either suction or drainage. The peristaltic pump of this invention can further determine the range of movement of the movable rod 20 by setting the number of steps of the motor 31 of the drive assembly 30, thereby adjusting the amount of suction and drainage.

[0071] Based on this, the present invention also proposes a urine testing device, see [link to relevant documentation]. Figures 12-19 The system includes a housing 60, a urine analysis component 70, and a micro-liquid peristaltic pump as described above. The housing 60 can be a one-piece or a split structure. Taking a split structure as an example, it may include a first housing 61 and a second housing 62, and also includes a mounting base 63. The first and second housings are detachably mounted on the mounting base 63 and can be arranged vertically. The first housing 61 has space to accommodate the urine analysis component 70 and the micro-liquid peristaltic pump, and may be fitted with a flip cover 61a. The control unit 50 is also connected to the urine analysis component 70 to obtain analysis results.

[0072] The urine analysis component 70 is located within the housing 60. A mounting base 63 is also provided, which can be used to mount the urine analysis component 70 and a micro-volume peristaltic pump, etc. The first port 14 of the micro-volume peristaltic pump can be connected to an adapter 19. The adapter 19 has several connectors 19a, which communicate with the liquid chamber 13. The number of connectors 19a can be two, three, or even four, depending on the needs. The second port 15 of the micro-volume peristaltic pump is connected to the urine analysis component 70 to deliver urine to the urine analysis component 70.

[0073] Furthermore, the system also includes a first control valve 81, a second control valve 82, and a vacuum pump 80. The first control valve 81 is connected to one connector 19a of the micro-liquid peristaltic pump, and the second control valve 82 is connected between the other connector 19a of the micro-liquid peristaltic pump and the vacuum pump 80. The first control valve 81 can also be connected to a urine collection valve 86 via a urine collection tube for urine collection. The first control valve 81 is used to control the opening or closing of the connection between the urine collection tube and the liquid chamber 13, and the second control valve 82 is used to control the opening or closing of the connection between the liquid chamber 13 and the vacuum pump 80. Thus, urine collection can be achieved by controlling the operating states of the micro-liquid peristaltic pump, the first control valve 81, the second control valve 82, and the vacuum pump 80.

[0074] Furthermore, it may also include an injection assembly and an injection valve 91. The injection valve 91 is connected between the second port 15 and the injection assembly, and the injection assembly is connected to the urine analysis assembly 70. That is, the injection valve 91 can be used to control the connection between the second port 15 and the injection assembly. When the injection valve 91 is open, the connection between the liquid chamber 13 and the injection assembly is opened; when the injection valve 91 is closed, the connection between the liquid chamber 13 and the injection assembly is closed. Thus, by controlling the operating states of the injection assembly, the injection valve 91, and the micro-liquid peristaltic pump, urine injection can be achieved.

[0075] Specifically, the urine analysis component 70 of the present invention is mounted on a mounting base 63 and includes a test strip cartridge 71, an optical analysis unit 72, and a drive motor 73. The test strip cartridge 71 is rotatable relative to the mounting base 63 and has a plurality of test strip holders 74 for injecting urine. Each test strip holder 74 can hold a test strip 75, with the front of the test strip 75 facing outwards. The drive motor 73 is used to drive the test strip cartridge 71 to rotate so that one of the test strip holders 74 to be injected with urine is opposite to the injection component, thereby realizing the injection of urine into different test strip holders 74. The optical analysis unit 72 is located on one side of the test strip cartridge 71 to analyze the test strips 75 on the test strip holders 74 opposite to it that have been injected with urine. The optical analysis unit 72 can analyze the urine composition by taking a picture of the test strip 75 contaminated with urine, comparing it with a standard colorimetric card, and transmitting the results to the control unit 50.

[0076] Furthermore, the test strip holder 74 has an axially penetrating mounting groove 74a inside, and rubber sleeves 74b at both ends of the test strip holder 74 to seal the two ends of the mounting groove 74a. The test strip 75 is located in the mounting groove 74a, that is, when urine is injected into the mounting groove 74a, the test strip 75 can be contaminated with urine. The liquid injection assembly includes a urine injection needle 92 and a vent needle 93, which are located at both ends of the test strip box 71, that is, at both ends of the test strip box 71 in the axial direction. The urine injection needle 92 and the vent needle 93 can be manipulated to be inserted into the corresponding rubber sleeves 74b to communicate with the mounting groove 74a. The liquid injection valve 91 can be connected to the urine injection needle 92, that is, the liquid injection valve 91 is used to control the opening and closing between the urine injection needle 92 and the second hole 15. The injection assembly may also include motors that drive the injection needle 92 and the vent needle 93 to move respectively. The injection needle 92 and the vent needle 93 may be connected to a transmission structure. By driving the corresponding transmission structure through the motor, the injection needle 92 and the vent needle 93 can be moved axially to puncture the rubber sleeve 74b. The two can move in opposite directions.

[0077] Furthermore, the test strip box 71 includes a frame 76 and two fixing covers 77. The frame 76 also has several circumferentially distributed grooves 78, which are radially concave and open on the outside. Several test strip holders 74 are detachably embedded in the corresponding grooves 78. The two fixing covers 77 are respectively fitted onto both ends of the frame 76 to fix the test strip holders 74. One of the fixing covers 77 has a transmission part 77a, which can be several circumferentially distributed transmission teeth. The drive motor 73 is connected to drive the transmission part 77a to rotate the frame 76, so that one of the test strip holders 74 is aligned with the liquid injection assembly to be filled with urine. At the same time, the test strip 75 in the urine-injected test strip holder 74 is aligned with the optical analysis unit 72 for analysis.

[0078] During liquid injection and urine analysis, the test strip 75 needs to be positioned to prevent the test strip cartridge 71 from shifting. Specifically, a plurality of circumferentially distributed positioning grooves 77b can be provided on one of the fixed covers 77, and these positioning grooves 77b are also radially concave. The urine analysis assembly 70 is also provided with a bracket 79, a limiting rod 79a, a top rod 79b, and an elastic element 79c. The bracket 79 can be located below the test strip cartridge 71 and is fixed relative to the mounting base 63. The bracket 79 is provided with a receiving groove 79d. One end of the limiting rod 79a is rotatably connected to the bracket 79, and the other end can be provided with a hook 79e. The shape of the hook 79e can be adapted to the shape of the positioning groove 77b. The top rod 79b is movably disposed in the receiving groove 79d and abuts against the bottom surface of the limiting rod 79a. The elastic element 79c is sleeved outside the top rod 79b, with one end abutting against the inner wall of the receiving groove 79d and the other end abutting against the top rod 79b. The elastic element 79c can drive the top rod 79b to push the limiting rod 79a so that the hook 79e is embedded in the corresponding positioning groove 77b to position the test paper box 71. When the test paper box 71 moves and the hook 79e of the limiting rod 79a disengages from the positioning groove 77b, the limiting rod 79a can push the top rod 79b to compress the elastic element 79c until the hook 79e of the limiting rod 79a is embedded in the next positioning groove 77b.

[0079] Furthermore, one side wall of the positioning groove 77b may be provided with an inclined surface 77c, which extends radially outward from the inner wall of the positioning groove 77b and is inclined circumferentially. When the drive motor 73 drives the test paper box 71 to rotate forward by a certain angle, the hook 79e of the limiting rod 79a can abut against the inclined surface 77c. Then, by controlling the drive motor 73 to drive the test paper box 71 to rotate in the reverse direction, the hook 79e is inserted into the bottom wall of the positioning groove 77b along the inclined surface 77c to achieve a limiting position. In this state, the forward rotation of the test paper box 71 driven by the motor is not affected, but the reverse rotation is limited.

[0080] Furthermore, the urine testing device of the present invention is also equipped with a cleaning function, which includes an air pump 83 and a cleaning valve 84, the cleaning valve 84 being connected between the air pump 83 and one of the connectors 19a. A control unit 50 is connected to the air pump 83 and the cleaning valve 84 to control their operating status. The air pump 83, the cleaning valve 84, the first orifice 14, the liquid chamber 13, the second orifice 15, the urine injection needle 92 of the injection assembly, and the injection valve 91 constitute a cleaning system, which can clean the urine collection-related channels and the urine injection-related channels by blowing air.

[0081] Furthermore, the urine testing device of the present invention is also equipped with a cleaning function, which includes a water inlet valve 85. The outlet of the water inlet valve 85 is connected to another second hole 15, and the inlet of the water inlet valve 85 can be connected to a tap water pipe or other water supply structure. The control unit 50 is connected to the water inlet valve 85 to control its working state. The water inlet valve 85 can be used to control the opening or closing of the flow of cleaning water into the second hole 15. The water inlet valve 85, the second hole 15, the urine injection needle 92 of the injection assembly, and the injection valve 91 constitute a cleaning system, which can inject cleaning water into the urine collection-related channels and the urine injection-related channels for cleaning.

[0082] Furthermore, a cleaning agent can be added to the cleaning system, including a reservoir 64 and a third control valve 87. The reservoir 64 is mounted on the housing and can also be connected to a filling box 65. The filling box 65 is used to add cleaning agent to the reservoir 64 and has a filling port. The third control valve 87 is connected between the reservoir 64 and the connector 19a of the micro-liquid peristaltic pump. The control unit 50 is connected to the third control valve 87 to control its working state. When the cleaning function is activated, the third control valve 87 opens the connection between the reservoir 64 and the micro-liquid peristaltic pump, which can control the micro-liquid peristaltic pump to draw in the cleaning agent. After the cleaning agent is mixed with water, it cleans the relevant urine collection channels and urine injection channels, resulting in better cleaning effect. In the urine testing device of the present invention, the first control valve 81, the second control valve 82, the cleaning valve 84, the injection valve 91, and the water inlet valve 85 can be solenoid valves, which can be arranged into a valve group 94 for easy installation. The valve group 94 and the control unit 50 can be located inside the second housing 62. The control unit 50 can pre-control the test strip box 71 to rotate to the position where one of the test strip holders 74 to be injected with urine is opposite to the injection component and the urine analysis component 70. The working principle of the urine test is as follows:

[0083] 1) Before use, the relevant channels need to be cleaned through the cleanup system. The operation is as follows:

[0084] When the air pump 83 is started, the cleaning valve 84 and the injection valve 91 are opened, and the other valves are closed, the gas output by the air pump 83 can enter the liquid chamber 13 through the cleaning valve 84 and the first hole 14, and then enter the urine injection needle 92 of the injection assembly through the second hole 15 and the injection valve 91 to be discharged, thus cleaning the urine injection channel. Then, the injection valve 91 is closed, the first control valve 81 is opened, and the other valves remain unchanged, so the gas output by the air pump 83 can enter the liquid chamber 13 through the cleaning valve 84 and the first hole 14, and then be discharged from the urine collection channel through the first hole 14 and the first control valve 81, thus cleaning the urine collection channel.

[0085] 2) Urine collection procedure

[0086] When the vacuum pump 80 is turned on, the first control valve 81 and the second control valve 82 are opened, and the other valves are closed, the micro-liquid peristaltic pump is turned on to draw liquid, which can draw urine into the liquid chamber 13.

[0087] 3) Urine injection procedure

[0088] The urine injection needle 92 and the air release needle 93 are inserted into the corresponding test strip holder 74. Then, the liquid injection valve 91 is opened and the other valves are closed. The micro-liquid peristaltic pump is operated to discharge the urine, which can drain the urine in the liquid chamber 13. The urine enters the mounting groove 74a of the test strip holder 74 through the liquid injection valve 91 and the urine injection needle 92. The test strip 75 is contaminated with urine. After a while, the urine sample reacts fully with the test strip 75 to develop color.

[0089] 4) Urine analysis steps

[0090] The optical analysis unit 72 starts working. Due to the reaction between urine and test strip 75, the color of test strip 75 changes. The optical analysis unit 72 compares the detected color information with the standard colorimetric card, analyzes the urine composition, and outputs the results.

[0091] 5) Cleaning steps

[0092] When the inlet valve 85, injection valve 91, and third control valve 87 are opened, and other valves are closed, the cleaning agent is added to the liquid chamber 13 through the third control valve 87. The cleaning water enters the liquid chamber 13 through the inlet valve 85 and mixes with the cleaning agent. It then enters the urine injection needle 92 through the injection valve 91 to clean the urine injection-related channels. After that, the injection valve 91 and the third control valve 87 are closed, and the first control valve 81 is opened.

[0093] After the cleaning steps are completed, step 1) can be repeated to clean the relevant urine collection and injection tubes with air.

[0094] Based on this, the present invention also proposes a toilet with a urine detection function, see [link to relevant documentation]. Figure 20 , Figure 21 The device includes a bucket body 100, a base assembly 101, and a cover 102. The bucket body 100 has a urinal 104 at the front and a cavity at the rear. The base assembly 101 is installed in the cavity at the rear of the bucket body 100. The base assembly 101 may also have a slot 103, a flushing assembly, and other necessary components. The cover 102 is installed on the top of the base and the bucket body 100. It also includes a urine collection valve 86 and a urine testing device as described above. The urine testing device is installed in the slot 103 of the base assembly 101. The urine collection valve 86 is embedded in the side wall of the urinal 104 and is connected to the urine testing device to collect urine, thus delivering urine to the urine testing device.

[0095] Specifically, the urine collection valve 86 is connected to the first control 81 of the urine testing device via a urine collection pipe. In addition, the water inlet valve 85 of the urine testing device can be shared with the water inlet valve of the toilet, and is used in conjunction with the water distribution valve 105 to switch between the flushing water path of the toilet and the cleaning water path of the urine testing device.

[0096] Furthermore, a cover plate 106 can be provided on the cover 102. The cover plate 106 can be configured to magnetically engage with the cover 102. After the cover plate 106 is opened, the urine testing device can be partially exposed, which facilitates the replacement of test strips.

[0097] In practical applications, to facilitate the connection of the urine testing device with other components, connection ports can be provided on its housing 60, including a first interface 66, a second interface 67, a third interface 68, and a fourth interface 69. The first interface 66 is used to connect to the water distribution valve 105; the second interface 67 can serve as a urination outlet for draining excess urine, and can also be used to direct water flow from the urination needle 92 to a suitable position on the toilet; the third interface 68 serves as the venting outlet for the vacuum pump 80, and is also for venting. The fourth interface 69 is a clearance interface for the urine collection tube to pass through and connect to the first control valve 81, and can also be used as a venting outlet for cleaning water, air, etc.

[0098] The above are merely specific embodiments of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial modifications made to the present invention using this concept shall be considered as infringing upon the protection scope of the present invention.

Claims

1. A micro-liquid peristaltic pump, comprising a body, the body having a liquid chamber, a first orifice, and a second orifice, the first orifice and the second orifice communicating with the liquid chamber, characterized in that: It also includes a movable rod, a drive assembly, a detection element group, and a control unit. The movable rod is axially movable within the body and one end is inserted into the liquid chamber. The detection element group is disposed on the body to detect the liquid level information of the liquid chamber and the position information of the movable rod. The drive assembly is connected to drive the movable rod to move. The control unit is connected to the detection element group and the drive assembly to control the drive assembly to operate according to the position information and the liquid level information, so that the liquid chamber draws in or drains liquid.

2. A micro-liquid peristaltic pump as described in claim 1, characterized in that: It also includes a first detection element and a second detection element, which are mounted on the body to detect the liquid level information and the position information, respectively. The control unit is connected to the first detection element and the second detection element to control the movement displacement of the movable rod according to the position information and / or the liquid level information.

3. A micro-liquid peristaltic pump as described in claim 2, characterized in that: The movable rod is provided with a positioning post on its outer periphery, and the second detection element is fixed to the outer periphery of the main body to detect the position information of the positioning post.

4. A micro-liquid peristaltic pump as described in claim 1, characterized in that: The movable rod is provided with a limiting post on its outer periphery, and a limiting component is fixed on the main body. The limiting component is sleeved on the movable rod and is provided with a limiting hole extending along its axial direction. The limiting post is located in the limiting hole.

5. A micro-liquid peristaltic pump as described in claim 1, characterized in that: The movable rod is provided with an axially extending transmission hole; the drive assembly includes a motor and a screw, the output shaft of the motor is connected to the screw, and the screw is inserted into the transmission hole and threadedly engaged with it to achieve transmission.

6. A micro-liquid peristaltic pump as described in claim 1, characterized in that: The main body includes an upper shell and a base. The base is fixed to one end of the upper shell and has the liquid cavity, the first hole and the second hole. The drive assembly is installed at the other end of the upper shell. The movable rod passes through the upper shell and one end of it is inserted into the base.

7. A urine testing device, comprising a housing and a urine analysis component, wherein the urine analysis component is located within the housing, characterized in that: It also includes a micro-liquid peristaltic pump according to any one of claims 1 to 6, wherein the first port is connected to an adapter, the adapter is provided with a plurality of connectors, the connectors being in communication with the liquid chamber; the second port is connected to the urine analysis component to deliver urine to the urine analysis component, and the control unit is also connected to the urine analysis component to obtain analysis results.

8. A urine testing device as described in claim 7, characterized in that: It also includes an injection assembly and an injection valve, the injection valve being connected between the second orifice and the injection assembly, the injection assembly being connected to the urine analysis assembly.

9. A urine testing device as described in claim 8, characterized in that: The system also includes a mounting base, with the housing covering the mounting base. The urine analysis assembly is mounted on the mounting base and includes a test strip box, an optical analysis unit, and a drive motor. The test strip box is rotatable and has several test strip holders for injecting urine. The drive motor drives the test strip box to rotate so that one of the test strip holders to be injected with urine is opposite to the injection assembly. The optical analysis unit is located on one side of the test strip box to analyze the test strips on the test strip holders to which urine has been injected.

10. A urine testing device as described in claim 9, characterized in that: The test strip holder has an axially through mounting groove inside, and rubber sleeves are provided at both ends of the test strip holder to close the two ends of the mounting groove. The test strip is located in the mounting groove. The liquid injection assembly includes a urine injection needle and a venting needle. The urine injection needle and the venting needle are respectively located at both ends of the test strip box. The urine injection needle and the venting needle can be manipulated to be inserted into the corresponding rubber sleeve to communicate with the mounting groove.

11. A urine testing device as described in claim 9, characterized in that: The test strip box has a frame and two fixed covers. The frame also has several circumferentially distributed grooves, and several test strip holders are detachably embedded in the corresponding grooves. The two fixed covers are respectively fitted onto both ends of the frame, and one of the fixed covers has a transmission part. The drive motor is connected to drive the transmission part to rotate the frame.

12. A urine testing device as described in claim 11, characterized in that: One of the fixed covers is also provided with several circumferentially distributed positioning grooves; the urine analysis component is also provided with a bracket, a limiting rod, a top rod and an elastic element. The bracket is fixed relative to the mounting base and is provided with a receiving groove. The limiting rod is rotatably connected to the bracket and is provided with a hook. The top rod is movably disposed in the receiving groove and abuts against the limiting rod. The elastic element is sleeved on the top rod and one end abuts against the inner wall of the receiving groove, and the other end abuts against the top rod to drive the top rod to push the limiting rod so that its hook is embedded in the corresponding positioning groove to position the test strip box.

13. A urine testing device as described in claim 12, characterized in that: One side wall of the positioning groove is provided with an inclined surface, which extends radially outward from the inner wall of the positioning groove and is inclined circumferentially.

14. A urine testing device as described in claim 8, characterized in that: It also includes an air pump and a cleaning valve, the cleaning valve being connected between the air pump and one of the connectors, and the control unit being connected to the air pump and the cleaning valve; the air pump, the cleaning valve, the first orifice, the liquid chamber, the second orifice, the liquid injection assembly, and the liquid injection valve constitute a cleaning system.

15. A urine testing device as described in claim 8, characterized in that: It also includes a water inlet valve, the outlet of which is connected to the second hole, and the control unit is connected to the water inlet valve; the water inlet valve, the second hole, the liquid injection assembly, and the liquid injection valve constitute a cleaning system.

16. A urine testing device as described in claim 15, characterized in that: It also includes a third control valve and a liquid reservoir for storing cleaning agent, and the third control valve is connected between the liquid reservoir and the connector.

17. A urine testing device as described in claim 8, characterized in that: It also includes a first control valve, a second control valve, and a vacuum pump, wherein the first control valve is connected to one of the connectors, and the second control valve is connected between the other connector and the vacuum pump.

18. A toilet with a urine testing device, comprising a bowl, a base assembly, and a lid, wherein the base assembly is mounted at the rear of the bowl, and the lid is mounted on the base assembly and the top of the bowl, characterized in that: It also includes a urine testing device and a urine collection valve according to any one of claims 7 to 17, wherein the base assembly is provided with a slot, the urine testing device is installed in the slot, and the urine collection valve is connected to the urine testing device to collect urine.

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