CN116816652B - Micro-liquid peristaltic pump, urine detection device and closestool - Google Patents

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

Micro-liquid peristaltic pump, urine detection device and closestool

Technical Field

The invention relates to the field of peristaltic pumps, in particular to a micro-liquid peristaltic pump, a urine detection device and a closestool.

Background

Peristaltic pump is a common device, which is composed of a driver, a pump head and a pump pipe, and is a liquid conveying device capable of controlling flow rate, and the elastic conveying hose is alternately extruded and released to pump fluid by the rotation of a roller in the pump head driven by the driver. Along with the rolling of the roller, the elasticity of the hose can enable the pump pipe to continuously restore to the original shape, negative pressure is formed at the inlet of the pump, liquid is promoted to flow and fill the pipeline, and the purpose of transmission is achieved.

At present, a urine detection device is added in a closestool of the intelligent closestool, a peristaltic pump is applied to the urine detection device, and urine extraction and urine injection can be realized through the peristaltic pump. However, most of the existing peristaltic pumps have relatively complex functional structures, the device is large in size and difficult to adapt to the working environment of the intelligent closestool, moreover, the peristaltic pump motor is affected by unstable voltage, rotation is not constant, the compression degree of a pump pipe can cause variation of sample injection amount, and the problem that the accuracy is reduced due to aging of a hose exists.

Disclosure of Invention

The invention mainly aims to overcome the defects of complex structure, large volume and insufficient precision of a peristaltic pump in the prior art, and provides a micro liquid peristaltic pump, a urine detection device and a closestool, which have small volume and high precision.

The invention adopts the following technical scheme:

the micro liquid peristaltic pump comprises a body, wherein the body is provided with a liquid cavity, a first hole and a second hole, the first hole and the second hole are communicated with the liquid cavity, and the micro liquid peristaltic pump is characterized by further comprising a movable rod, a driving component, a detection component group and a control unit, wherein the movable rod is axially movably arranged in the body, one end of the movable rod is inserted into the liquid cavity, the detection component group is arranged on the body to detect liquid level information of the liquid cavity and position information of the movable rod, the driving component is connected with and drives the movable rod to move, and the control unit is connected with the detection component group and the driving component to control the driving component to work according to the position information and the liquid level information so that the liquid cavity absorbs or discharges liquid.

Preferably, the device further comprises a first detection element and a second detection element, wherein the first detection element and the second detection element are arranged on the body to detect the liquid level information and the position information respectively, and the control unit is connected with 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.

Preferably, a positioning column is arranged on the periphery of the movable rod, and the second detection element is fixed on the periphery of the body to detect the position information of the positioning column.

Preferably, the periphery of the movable rod is provided with a limit post, the body is fixedly provided with a limit piece, the limit piece is sleeved outside the movable rod and is provided with a limit hole extending along the axial direction of the movable rod, and the limit post is positioned in the limit hole.

Preferably, the movable rod is provided with a transmission hole extending axially, the driving assembly comprises a motor and a screw, an output shaft of the motor is connected with the screw, and the screw is inserted into the transmission hole and is in threaded fit with the transmission hole to realize transmission.

Preferably, the body comprises an upper shell and a base, wherein the base is fixed at one end of the upper shell and provided with the liquid cavity, the first hole and the second hole, the driving assembly is arranged at the other end of the upper shell, the movable rod penetrates through the upper shell, one end of the movable rod is inserted into the base, and the liquid level sensor is arranged on the base.

The urine detection device comprises a shell and a urine analysis assembly, and is characterized by further comprising a micro liquid peristaltic pump, wherein the first hole is connected with an adapter, the adapter is provided with a plurality of connectors, the connectors are communicated with the liquid cavity, the second hole is connected with the urine analysis assembly to convey urine to the urine analysis assembly, and the control unit is further connected with the urine analysis assembly to obtain analysis results.

Preferably, the urine analyzer further comprises a liquid injection assembly and a liquid injection valve, wherein the liquid injection valve is connected between the second hole and the liquid injection assembly, and the liquid injection assembly is connected with the urine analysis assembly.

The urine analyzer comprises a urine analyzer, a shell, a test paper box, an optical analysis unit and a driving motor, wherein the urine analyzer is arranged on the shell, the urine analyzer is arranged on the shell and comprises the test paper box, the optical analysis unit and the driving motor, the test paper box is arranged to be rotatable and is provided with a plurality of test paper seats for injecting urine, the driving motor is connected with and drives the test paper box to rotate so that one of the test paper seats to be injected with urine is opposite to the liquid injector, and the optical analysis unit is positioned on one side of the test paper box to analyze test paper on the test paper seat opposite to the test paper seat to be injected with urine.

Preferably, the test paper seat is internally provided with an axially-through mounting groove, rubber sleeves are arranged at two ends of the test paper seat to seal two ends of the mounting groove, the test paper is positioned in the mounting groove, the liquid injection assembly comprises a urine injection needle and an exhaust needle, the urine injection needle and the exhaust needle are respectively positioned at two ends of the test paper box, and the urine injection needle and the exhaust needle can be controlled to be inserted into the corresponding rubber sleeves to be communicated with the mounting groove.

Preferably, the test paper box is provided with a framework and two fixed covers, the framework is also provided with a plurality of grooves distributed in the circumferential direction, a plurality of test paper seats are detachably embedded in the corresponding grooves, the two fixed covers are respectively sleeved at two ends of the framework, one of the fixed covers is provided with a transmission part, and the driving motor is connected with and drives the transmission part to act so as to drive the framework to rotate.

Preferably, one of the fixing covers is also provided with a plurality of circumferentially distributed positioning grooves, the urine analysis assembly is also provided with a bracket, a limiting rod, a push rod and an elastic piece, the bracket and the mounting seat are relatively fixed and are provided with accommodating grooves, the limiting rod is rotatably connected with the bracket and is provided with a hook part, the push rod is movably arranged in the accommodating groove and is in abutting contact with the limiting rod, the elastic piece is sleeved outside the push rod, one end of the elastic piece abuts against the inner wall of the accommodating groove, and the other end of the elastic piece abuts against the push rod to drive the push rod to push the limiting rod to enable the hook part of the limiting rod to be embedded into the corresponding positioning groove so as to position the test paper box.

Preferably, one side wall of the positioning groove can be provided with a slope, and the slope extends outwards along the radial direction from the inner wall of the positioning groove and is inclined towards the circumferential direction.

Preferably, the device further comprises a water inlet valve, wherein the water outlet end of the water inlet valve is connected with the second hole, the control unit is connected with the water inlet valve, and the water inlet valve, the second hole, the liquid injection assembly and the liquid injection valve form a cleaning system.

Preferably, the cleaning agent storage device further comprises a third control valve and a liquid storage box, wherein the liquid storage box is used for storing the cleaning agent, and the third control valve is connected between the liquid storage box and the connector.

Preferably, the vacuum pump further comprises a first control valve, a second control valve and a vacuum pump, wherein the first control valve is connected with one connector, and the second control valve is connected between the other connector and the vacuum pump.

The closestool with the urine detection device comprises a closestool body, a base component and a cover body, wherein the base component is arranged at the rear part of the closestool body, and the cover body is arranged at the top of the base and the top of the closestool body.

As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following advantages:

1. The liquid cavity liquid sucking and discharging device comprises a body, a movable rod, a driving assembly, a detection element group, a control unit and the like, wherein the movable rod is axially movably arranged in the body, one end of the movable rod is inserted into a liquid cavity, the detection element group is arranged on the body to detect liquid level information of the liquid cavity and position information of the movable rod, and the control unit is connected with the detection element group and the driving assembly to control the driving assembly to work according to the position information and the liquid level information so as to suck or discharge liquid in the liquid cavity.

2. In the invention, the detection element group comprises a first detection element and a second detection element, the first detection element and the second detection element respectively detect liquid level information and position information, the liquid suction and liquid discharge are ensured to be more accurate, and the liquid taking and injecting range can be automatically adjusted according to the requirement.

3. According to the invention, the positioning column and the limiting column are arranged on the periphery of the movable rod, the position of the movable rod is determined by detecting the position information of the positioning column, the limiting sleeve is arranged in the body, the movable rod moves along the limiting hole of the limiting sleeve through the limiting piece to realize guiding, and the movable rod is ensured to move more reliably, and the detected position information is more accurate.

4. The urine detection device comprises a shell, a urine analysis assembly and a micro liquid peristaltic pump, wherein the urine analysis assembly is connected with the micro liquid peristaltic pump to convey urine to the urine analysis assembly, and the control unit is also connected with the urine analysis assembly to obtain an analysis result.

5. The urine analyzer further comprises a liquid injection assembly and a liquid injection valve, wherein the liquid injection valve is connected between the second hole and the liquid injection assembly, the liquid injection assembly is connected with the urine analysis assembly, and urine is conveyed to the urine analysis assembly through connection of the liquid injection assembly, the liquid injection valve and the urine analysis assembly, so that the urine analyzer is simple in structure and convenient to operate.

6. The urine analysis component comprises a paper box, an optical analysis unit and a driving motor, wherein the paper box is rotatably provided with a plurality of paper seats for injecting urine, the driving motor is connected with the paper box to drive the paper box to rotate so that one of the paper seats to be injected with urine is opposite to the liquid injection component, the optical analysis unit is positioned at one side of the paper box to analyze the paper on the opposite paper seat for injecting urine, and the structure can realize an intelligent urine analysis function and automatically switch the paper seats.

7. The test paper box is also provided with a framework and two fixed covers, a plurality of grooves are circumferentially distributed on the framework, the plurality of test paper seats are detachably embedded in the corresponding grooves, the two fixed covers are respectively sleeved at two ends of the framework, and a driving motor is connected with a driving part on the fixed cover to drive the framework to rotate.

8. In the invention, the urine analysis component is also provided with a bracket, a limiting rod, a push rod and an elastic piece, wherein the limiting rod is rotatably connected with the bracket and is provided with a hook part, the push rod is movably arranged and is in abutting contact with the limiting rod, and the elastic piece drives the push rod to push the limiting rod to enable the hook part of the push rod to be embedded into a corresponding positioning groove so as to realize positioning of the test paper box, so that the influence of the displacement of the test paper box on the urine injection and the urine analysis is avoided.

9. The invention also comprises an air pump and a cleaning valve, wherein the air pump and the cleaning valve form a cleaning system together with the liquid cavity, the liquid injection assembly, the liquid injection valve and the like, so that the air blowing cleaning of the related urine taking pipeline and the urine injection pipeline is facilitated, and the cleaning system also comprises a water inlet valve, which forms a cleaning system together with the liquid cavity, the liquid injection assembly, the liquid injection valve and the like, so that the related pipeline is conveniently cleaned, the urine residue is avoided, and the urine analysis result is influenced.

Drawings

FIG. 1 is a block diagram of a peristaltic pump of the present invention;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is an exploded view of FIG. 1;

FIG. 4 is a diagram of a movable bar construction;

FIG. 5 is a side view of a movable bar;

FIG. 6 is a perspective view of a movable bar;

FIG. 7 is a top view of the movable bar;

FIG. 8 is a cross-sectional view A-A of FIG. 2 (first end position);

FIG. 9 is a cross-sectional view A-A of FIG. 2 (second end position);

FIG. 10 is a flow chart of peristaltic pump fluid according to the present invention;

FIG. 11 is a flow chart of peristaltic pump drainage according to the present invention;

FIG. 12 is a perspective view of a urine testing device of the present invention;

fig. 13 is a front view of fig. 12;

FIG. 14 is an exploded view of FIG. 12;

FIG. 15 is a cross-sectional view A-A of FIG. 13;

FIG. 16 is a schematic diagram of a cartridge installation;

FIG. 17 is an exploded view of the test paper cassette;

FIG. 18 is an exploded view of the test strip holder;

FIG. 19 is a schematic diagram of the control of the urine test device of the present invention;

FIG. 20 is an exploded view of the toilet of the present invention;

FIG. 21 is a cross-sectional view of the toilet;

wherein:

10. The body, 11, the upper case, 12, the base, 13, the liquid chamber, 14, the first hole, 15, the second hole, 16, the sealing component, 17, the stopper, 17a, 18, the compensation ring, 19, the adaptor, 19a, the joint, 20, the movable rod, 21, the transmission hole, 22, the column, 23, the positioning column, 24, the air hole, 30, the driving component, 31, the motor, 32, the screw, 40, the detection component group, 41, the first detection component, 42, the second detection component, 50, the control unit, 60, the case, 61, the first case, 61a, the flip, 62, the second case, 63, the mounting base, 64, the liquid storage box, 65, the liquid adding box, 66, the first interface, 67, the second interface, 68, the third interface, 69, the fourth interface, 70, the urine analysis component, 71, the test paper box, 72, an optical analysis unit, 73, a driving motor, 74, a test paper seat, 74a, a mounting groove, 74b, a rubber sleeve, 75, test paper, 76, a framework, 77, a fixing cover, 77a, a transmission part, 77b, a positioning groove, 77c, an inclined surface, 78, a groove, 79, a bracket, 79a, a limit rod, 79b, a push rod, 79c, an elastic piece, 79d, a containing groove, 79e, a hook part, 80, a vacuum pump, 81, a first control valve, 82, a second control valve, 83, an air pump, 84, a cleaning valve, 85, a water inlet valve, 86, a urine taking valve, 87, a third control valve, 91, a liquid injection valve, 92, a urine injection needle, 93, an exhaust needle, 94, a valve group, 100, a bucket body, 101, a base component, 102, a cover body, 103, an empty groove, 104, a urinal, 105, a water diversion valve, 106 and a cover plate.

The invention is further described in detail below with reference to the drawings and the specific examples.

Detailed Description

The invention is further described below by means of specific embodiments.

In the present application, the terms "first," "second," "third," and the like are used merely to distinguish between similar objects and not necessarily to describe a particular sequence or order, nor are they to be construed as indicating or implying a relative importance. In the description, the directions or positional relationships indicated by "upper", "lower", "left", "right", "front" and "rear", etc. are used for convenience of description of the present application based on the directions or positional relationships shown in the drawings, and are not intended to indicate or imply that the apparatus must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the scope of protection of the present application. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, in the description of the present application, unless otherwise indicated, "a plurality" means two or more. "and/or" describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate that there are three cases of a alone, a and B together, and B alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

Referring to fig. 1 to 9, a micro-fluid peristaltic pump includes a body 10, a movable rod 20, a driving assembly 30, a sensing element group 40, a control unit 50, and the like. The body 10 may be a hollow structure provided with a liquid chamber 13, a first hole 14 and a second hole 15, the first hole 14 and the second hole 15 communicating with the liquid chamber 13. The body 10 may be an integral structure or a split connection structure, and the body 10 may include an upper case 11 and a base 12, where one end of the upper case 11 is closed and the other end is open, and the base 12 is fixed to the open end of the upper case 11 and provided with the above-mentioned liquid chamber 13, first hole 14, and second hole 15. The number of the first holes 14 and the number of the second holes 15 may be at least one according to needs for better connection with the liquid inlet or outlet pipe, or the first holes 14 or the second holes 15 may be branched through a connection adaptor to connect with multiple branches, and the size of the liquid chamber 13 may be set according to needs, which is not limited herein.

The movable rod 20 is axially movably disposed in the body 10, and one end of the movable rod is inserted into the liquid chamber 13, that is, the movable rod 20 is axially movably disposed through the upper shell 11, and one end of the movable rod opposite to the base 12 is inserted into the liquid chamber 13 of the base 12. And the end of the base 12 opposite to the upper shell 11 is fixedly provided with a sealing component 16 to be in sealing fit with the movable rod 20, so that liquid in the liquid cavity 13 is prevented from entering the upper shell 11.

The driving assembly 30 is connected to drive the movable rod 20 to move, and when the first hole 14 and the second hole 15 are not communicated with the outside atmosphere, the pressure in the liquid cavity 13 can be changed during the movement of the movable rod 20. When the movable rod 20 moves in a direction away from the base 12, a negative pressure can be generated by reducing the pressure in the liquid chamber 13, and when the movable rod 20 moves in a direction toward the base 12, the space in the liquid chamber 13 is reduced and the pressure can be increased.

The driving assembly 30 of the present invention is mounted at the other end of the upper case 11, i.e., the end remote from the base 12. The drive assembly 30 and the movable rod 20 can adopt common transmission modes such as screw transmission and the like. In particular, the movable rod 20 is provided with an axially extending transmission hole 21. The driving assembly 30 comprises a motor 31 and a screw rod 32, an output shaft of the motor 31 is connected with the screw rod 32, and the screw rod 32 is inserted into the transmission hole 21 and is in threaded fit with the transmission hole to realize transmission. In addition, the movable rod 20 is provided with an air hole 24, and the air hole 24 is communicated with the transmission hole 21, so that the transmission hole 21 is communicated with the outside atmosphere.

Further, in order to ensure that the movement of the movable rod 20 is more accurate and reliable, a limit post 22 is arranged at the periphery of the movable rod 20, a limit piece 17 is fixed in the upper shell 11 of the body 10, the limit piece 17 is sleeved outside the movable rod 20 and provided with a limit hole 17a extending along the axial direction of the limit piece, and the limit post 22 is positioned in the limit hole 17a, namely, when the movable rod 20 moves, the limit post 22 can move along the limit hole 17a to play a guiding role.

The detecting element group 40 is provided 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, and the first detection element 41 may employ a liquid level sensor that may be mounted on the base 12 for detecting liquid level information in the liquid chamber 13. The second detecting element 42 is mounted on the upper case 11 of the body 10 to detect the position information of the movable lever 20, and the second detecting element 42 may employ a photoelectric position sensor.

In order to better and accurately detect the position information of the movable rod 20, a positioning column 23 may be disposed on the outer periphery of the movable rod 20, and a void space yielding positioning column 23 may be disposed on the outer periphery of the upper case 11. The second detecting element 42 is fixed to the outer periphery of the upper case 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 column 23. In practical application, a compensating ring 18 is further provided, and the compensating ring 18 is fixedly disposed at one end of the upper shell 11 opposite to the base 12 and is sleeved outside the movable rod 20.

The control unit 50 is connected to the detection element set 40 and the driving assembly 30 to control the driving assembly 30 to operate according to the position information and the liquid level information so that the liquid chamber 13 absorbs or discharges liquid. The specific working principle is as follows:

In the liquid suction process, the first hole 14 is connected with the liquid supply structure in advance, the second hole 15 is closed, referring to fig. 10, the position information of the positioning column 23 is detected through the second detection element 42, the control unit 50 judges whether the movable rod 20 is positioned at the first end position according to the position information, if yes, the control unit 50 controls the driving assembly 30 to act so that the movable rod 20 moves away from the base 12 for a set distance, negative pressure is generated in the liquid cavity 13 to realize liquid suction, liquid enters the liquid cavity 13 through the first hole 14, if not positioned at the first end position, the position information is recorded, the control unit 50 controls the driving assembly 30 to act so that the movable rod 20 moves until positioned at the first end position, the liquid level information is acquired through the first detection element 41, whether the set liquid level is reached is judged, if yes, the liquid suction is finished, and if not, the feedback is abnormal. The first end position is an upper limit position of the movable rod 20 moving away from the base 12, see fig. 8.

In the liquid discharging process, the first hole 14 is sealed in advance, the second hole 15 is opened, referring to fig. 11, the first detecting element 41 detects the liquid level information in the liquid cavity 13, the control unit 50 judges whether the liquid level reaches the preset liquid level, if the liquid level is abnormal, the control unit 50 controls the driving component 30 to act to drive the movable rod 20 to move for a set distance, if the liquid level is abnormal, the liquid in the liquid cavity 13 can be discharged from the second hole 15, the second detecting element 42 detects the position information of the positioning column 23, the control unit 50 judges whether the movable rod 20 is positioned at the second end position, if the liquid level is not reached, the position information is recorded, and if the liquid level is not reached, the control unit 50 controls the driving component 30 to act to drive the movable rod 20 to move until the movable rod 20 is positioned at the second end position. The second end position is a lower limit position of the movable rod 20 moving toward the base 12, see fig. 9.

In practical applications, the second hole 15 may be used for liquid draining, the first hole 14 may be used for liquid draining, or the first hole 14 may be used for liquid draining and liquid draining, or the second hole 15 may be used for liquid draining, etc. The peristaltic pump of the present 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 driving assembly 30, thereby adjusting the amount of liquid suction and liquid discharge.

Based on this, the present invention also proposes a urine test device, see fig. 12-19, comprising a housing 60, a urine analysis assembly 70, and a micro-liquid peristaltic pump as described above, etc. The housing 60 may be an integral structure or a split structure, taking split as an example, and may include a first housing 61 and a second housing 62, and further be provided with a mounting seat 63, where the first housing 61 and the second housing are detachably covered on the mounting seat 63, and may be distributed up and down, and the first housing 61 is provided with a space for accommodating the urine analysis assembly 70 and the micro liquid peristaltic pump, and the like, and may be provided with a flip cover 61a thereon. The control unit 50 is also connected to the urine analysis assembly 70 to obtain analysis results.

A urine analysis assembly 70 is located within the housing 60. Wherein, also be provided with mount pad 63, mount pad 63 can be used to install urine analysis assembly 70 and micro-liquid peristaltic pump etc.. The first hole 14 of the micro-liquid peristaltic pump can be connected with an adapter 19, the adapter 19 is provided with a plurality of joints 19a, the joints 19a are communicated with the liquid cavity 13, the number of the joints 19a can be two, three or even four, and the like, and the number can be set according to the needs. The second orifice 15 of the micropump is connected to the urine analysis assembly 70 for delivering urine to the urine analysis assembly 70.

Further, the device also comprises a first control valve 81, a second control valve 82 and a vacuum pump 80, wherein the first control valve 81 is connected with one joint 19a of the micro liquid peristaltic pump, the second control valve 82 is connected between the other joint 19a of the micro liquid peristaltic pump and the vacuum pump 80, and the first control valve 81 can be connected with a urine taking valve 86 for taking urine through a urine taking pipeline. The first control valve 81 is used for controlling the opening or closing of the communication between the urine taking pipe and the liquid chamber 13, and the second control valve 82 is used for controlling the opening or closing of the communication between the liquid chamber 13 and the vacuum pump 80. Urine may be taken 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.

Further, a liquid injection assembly and a liquid injection valve 91 may be further included, wherein the liquid injection valve 91 is connected between the second hole 15 and the liquid injection assembly, and the liquid injection assembly is connected with the urine analysis assembly 70. That is, the liquid injection valve 91 may be used to control the connection and disconnection between the second hole 15 and the liquid injection component, when the liquid injection valve 91 is opened, the communication between the liquid chamber 13 and the liquid injection component may be opened, and when the liquid injection valve 91 is closed, the communication between the liquid chamber 13 and the liquid injection component may be closed. Injecting urine can be accomplished by controlling the operating conditions of the priming assembly, priming valve 91, and micro peristaltic pump.

Specifically, the urine analysis assembly 70 of the present invention is mounted on the mounting block 63 and includes a test paper cassette 71, an optical analysis unit 72, and a driving motor 73. The test paper box 71 is rotatably arranged relative to the mounting seat 63 and is provided with a plurality of test paper seats 74 for injecting urine, each test paper seat 74 can be provided with a test paper 75, and the front of the test paper 75 can face outwards. The driving motor 73 is used for connecting and driving the test paper box 71 to rotate so that one test paper seat 74 to be injected with urine is opposite to the liquid injection assembly, thereby realizing the injection of urine into different test paper seats 74. The optical analysis unit 72 is located at one side of the paper cassette 71 to analyze the paper 75 on the opposite paper seat 74 into which urine is injected. The optical analysis unit 72 may analyze the urine component by photographing the test paper 75 stained with urine, comparing it with a standard colorimetric card, and delivering the result to the control unit 50.

Further, an axially penetrating mounting groove 74a is formed in the test paper seat 74, rubber sleeves 74b are arranged at two ends of the test paper seat 74 to seal two ends of the mounting groove 74a, and the test paper 75 is located in the mounting groove 74a, namely, after urine is injected into the mounting groove 74a, the test paper 75 can be stained with urine. The liquid injection assembly comprises a urine injection needle 92 and an air exhaust needle 93, wherein the urine injection needle 92 and the air exhaust needle 93 are respectively arranged at two ends of the paper box 71, namely at two ends of the paper box 71 in the axial direction, the urine injection needle 92 and the air exhaust needle 93 can be controlled to be inserted into the corresponding rubber sleeve 74b so as to be communicated with the mounting groove 74a, and the liquid injection valve 91 can be connected with the urine injection needle 92, namely, the liquid injection valve 91 is used for controlling the on-off between the urine injection needle 92 and the second hole 15. The liquid injection assembly may further include a motor for driving the urine injection needle 92 and the air exhaust needle 93 to move respectively, the urine injection needle 92 and the air exhaust needle 93 may be connected with a transmission structure respectively, the urine injection needle 92 and the air exhaust needle 93 may be driven to move along the axial direction by driving the corresponding transmission structure to puncture the rubber sleeve 74b through the motor, and the moving directions of the two may be opposite.

Further, the test paper box 71 is provided with a skeleton 76 and two fixing covers 77, the skeleton 76 is further provided with a plurality of circumferentially distributed grooves 78, the grooves 78 are radially concave inwards and open at the outer side, and the plurality of test paper seats 74 are detachably embedded in the corresponding grooves 78. Two fixing covers 77 are respectively sleeved at two ends of the skeleton 76 for fixing the test paper holders 74. One of the fixing covers 77 is provided with a transmission part 77a, and the transmission part 77a can be a plurality of circumferentially distributed transmission teeth. The driving motor 73 is connected with the driving transmission part 77a to drive the skeleton 76 to rotate, so that one of the test paper seats 74 is opposite to the liquid injection assembly so as to be filled with urine, and meanwhile, the test paper 75 in the test paper seat 74 injected with urine is opposite to the optical analysis unit 72 so as to be analyzed.

In order to avoid displacement of the test paper cassette 71 when performing the pipetting operation and urine analysis, it is also necessary to position the test paper 75. Specifically, a plurality of positioning grooves 77b distributed circumferentially may be provided on one of the fixing covers 77, and the positioning grooves 77b are also radially concave. The urine analysis assembly 70 is further provided with a support 79, a limit rod 79a, a push rod 79b, an elastic member 79c and the like, wherein the support 79 can be positioned below the test paper box 71 and is fixed relative to the mounting seat 63, and the support 79 is provided with a containing groove 79d. One end of the limiting rod 79a is rotatably connected with the bracket 79, the other end of the limiting rod can be provided with a hook 79e, and the shape of the hook 79e can be matched with the shape of the positioning groove 77 b. The ejector 79b is movably disposed in the accommodating groove 79d and contacts with the bottom surface of the limit lever 79 a. The elastic member 79c is sleeved outside the ejector rod 79b, one end of the elastic member abuts against the inner wall of the accommodating groove 79d, the other end of the elastic member 79c abuts against the ejector rod 79b, the ejector rod 79b can be driven by the elastic member 79c to push the limiting rod 79a to enable the hook portion 79e to be embedded into the corresponding positioning groove 77b, so that the positioning of the paper box 71 is realized, and when the paper box 71 moves to enable the hook portion 79e of the limiting rod 79a to be separated from the positioning groove 77b, the limiting rod 79a can push the ejector rod 79b to enable the elastic member 79c to be compressed until the hook portion 79e of the limiting rod 79a is embedded into the next positioning groove 77 b.

Further, one side wall of the positioning groove 77b may be provided with a slope 77c, and the slope 77c extends radially outwards from the inner wall of the positioning groove 77b and is inclined towards the circumferential direction. When the driving motor 73 drives the paper box 71 to rotate forward by a certain angle, the hook 79e of the limit lever 79a is abutted against the inclined surface 77c, and then the driving motor 73 is controlled to drive the paper box 71 to rotate reversely, so that the hook 79e is embedded into the bottom wall of the positioning groove 77b along the inclined surface 77c to realize limit, and in the state, the forward rotation of the paper box 71 driven by the motor is not affected, but the reverse rotation is limited.

Further, the urine test device of the present invention is further provided with a cleaning function, which further 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 joints 19 a. The control unit 50 is connected to an air pump 83 and a purge valve 84 to control the operation state thereof. The air pump 83, the purge valve 84, the first hole 14, the liquid chamber 13, the second hole 15, the urine injection needle 92 and the liquid injection valve 91 of the liquid injection assembly, and the like constitute a purge system that blows air to the urine taking-related passage and the urine injection-related passage to purge them.

Further, the urine test device of the present invention is further provided with a cleaning function, and further comprises a water inlet valve 85, wherein the water outlet end of the water inlet valve 85 is connected with the other second hole 15, and the water inlet end of the water inlet valve 85 can be connected with a tap water pipeline or other water supply structures. The control unit 50 is connected to the water inlet valve 85 to control the operation state thereof, and the water inlet valve 85 may be used to control the opening or closing of the supply of the washing water to the second hole 15. The water inlet valve 85, the second hole 15, the urine injection needle 92 of the liquid injection assembly, and the liquid injection valve 91 constitute a washing system that washes the urine taking-related passage and the urine injection-related passage with washing water.

Further, a cleaning agent may be added to the cleaning system, including a liquid storage box 64 and a third control valve 87, the liquid storage box 64 is mounted on the housing and may further be provided with a liquid adding box 65, the liquid adding box 65 is used for adding the cleaning agent to the liquid storage box 64 and is provided with a liquid adding port, and the third control valve 87 is connected between the liquid storage box 64 and the joint 19a of the micro-liquid peristaltic pump. The control unit 50 is connected with the third control valve 87 to control the working state of the control unit, when the cleaning function is started, the third control valve 87 can control the micro liquid peristaltic pump to pump cleaning agent when the liquid storage box 64 is started and the micro liquid peristaltic pump is communicated, and the cleaning agent is mixed with water to clean the relevant urine taking relevant channel and the urine injecting relevant channel, so that the cleaning effect is better. In the urine test device of the present invention, the first control valve 81, the second control valve 82, the purge valve 84, the filling valve 91, the water inlet valve 85, etc. may be solenoid valves, and a valve block 94 may be formed for easy installation, and the valve block 94, the control unit 50, etc. may be located in the second housing 62. The control unit 50 can control the test paper box 71 to rotate in advance to a position where the test paper seat 74 to be injected with urine is opposite to the liquid injection component and the urine analysis component 70, and the urine test working principle is as follows:

1) Before use, the related channels need to be cleaned by a cleaning system, and the operation is as follows:

The air pump 83 is controlled to start working, the cleaning valve 84 and the liquid injection valve 91 are opened, other valves are closed, then the air output by the air pump 83 can enter the liquid cavity 13 through the cleaning valve 84 and the first hole 14 and is discharged through the second hole 15 and the liquid injection valve 91 into the urine injection needle 92 of the liquid injection assembly, cleaning of the urine injection channel is achieved, then the liquid injection valve 91 is controlled to be closed again, the first control valve 81 is opened, other valve states are unchanged, then the air output by the air pump 83 can enter the liquid cavity 13 through the cleaning valve 84 and the first hole 14, and is discharged through the first hole 14 and the first control valve 81 from the urine taking pipeline, and cleaning of the urine taking channel is achieved.

2) Urine taking step

The vacuum pump 80 is controlled to be started to work, the first control valve 81 and the second control valve 82 are opened, the other valves are closed, and the micro liquid peristaltic pump is controlled to work to suck liquid, so that urine can be sucked into the liquid cavity 13.

3) Urine injecting step

And then, the liquid injection valve 91 is controlled to be opened, other valves are controlled to be closed, and the micro liquid peristaltic pump is controlled to discharge liquid, so that urine in the liquid cavity 13 can be discharged, the urine enters the mounting groove 74a of the test paper seat 74 through the liquid injection valve 91 and the liquid injection needle 92, the test paper 75 is stained with the urine, and a period of time is waited for the urine sample to fully react with the test paper 75 for color development.

4) Urine analysis step

The optical analysis unit 72 is controlled to start working, the color of the test paper 75 is changed due to the reaction of urine and the test paper 75, the optical analysis unit 72 performs colorimetric comparison on the detected color information and a standard colorimetric card, and the urine component is analyzed and the result is output.

5) Washing step

The water inlet valve 85, the liquid injection valve 91 and the third control valve 87 are controlled to be opened, other valves are controlled to be closed, cleaning agent is added into the liquid cavity 13 through the third control valve 87, cleaning water enters the liquid cavity 13 through the water inlet valve 85 and is mixed with the cleaning agent, the cleaning water enters the urine injection needle 92 through the liquid injection valve 91 to clean a urine injection related passage, then the liquid injection valve 91 and the third control valve 87 are controlled to be closed, and the first control valve 81 is opened.

After the cleaning step is finished, the step 1) can be repeated to clean the related urine taking pipeline and urine injecting pipeline by blowing.

Based on this, the invention also provides a toilet with urine detection function, referring to fig. 20 and 21, comprising a toilet body 100, a base component 101 and a cover 102, wherein the front part of the toilet body 100 is provided with a urinal 104, the rear part of the toilet body can be provided with a cavity, the base component 101 is installed in the cavity at the rear part of the toilet body 100, the base component 101 can be provided with a hollow 103, a flushing component and other necessary components, and the cover 102 is installed on the top of the base and the toilet body 100. The urine sampling device is arranged in the empty groove 103 of the base assembly 101, the urine sampling valve 86 is embedded on the side wall of the urinal 104, and the urine sampling valve 86 is connected with the urine sampling device to sample urine, so that the urine can be sent into the urine sampling device.

Specifically, the urine sampling valve 86 is connected to the first control 81 of the urine test device via a urine sampling line. The water inlet valve 85 of the urine test device is commonly used as a water inlet valve of the toilet bowl, and is used to switch between a flushing water path of the toilet bowl and a cleaning water path of the urine test device by being matched with the water diversion valve 105.

Further, the cover body 102 may further be provided with a cover plate 106, and the cover plate 106 may be magnetically engaged with the cover body 102, so that after the cover plate 106 is opened, the urine test device may be partially exposed, thereby facilitating the test paper replacement operation.

In practical application, in order to facilitate connection between the urine test device and other components, the housing 60 may be provided with connectors, including a first connector 66, a second connector 67, a third connector 68 and a fourth connector 69, where the first connector 66 is used for connecting with the diverter valve 105, the second connector 67 may be used as a urine draining end for draining excessive urine and also may be used as a water flow for cleaning the urine injecting needle 92 to a proper position of the toilet bowl, and the third connector 68 is used as a draining end of the vacuum pump 80 and is also empty. The fourth port 69 is a yielding port for passing through a urine taking pipe to be connected with the first control valve 81, and can also be used as cleaning water, exhaust place and the like.

The foregoing is merely illustrative of specific embodiments of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modification of the present invention by using the design concept shall fall within the scope of the present invention.

Claims (18)

1. The micro liquid peristaltic pump comprises a body, wherein the body is provided with a liquid cavity, a first hole and a second hole, the first hole and the second hole are communicated with the liquid cavity, and the micro liquid peristaltic pump is characterized by further comprising a movable rod, a driving component, a detection component group and a control unit, wherein the movable rod is axially movably arranged in the body, one end of the movable rod is inserted into the liquid cavity, the detection component group is arranged on the body to detect liquid level information of the liquid cavity and position information of the movable rod, the driving component is connected with and drives the movable rod to move, and the control unit is connected with the detection component group and the driving component to control the driving component to work according to the position information and the liquid level information so that the liquid cavity absorbs or discharges liquid.

2. The peristaltic pump of claim 1 further comprising a first sensing element and a second sensing element mounted to said body for sensing said fluid level information and said position information, respectively, said control unit being coupled to said first sensing element and said second sensing element for controlling the displacement of said movable rod based on said position information and/or said fluid level information.

3. A micro-liquid peristaltic pump as set forth in claim 2, wherein a positioning column is provided on the outer periphery of said movable rod, and said second detecting element is fixed on the outer periphery of said body to detect the positional information of said positioning column.

4. A micro-liquid peristaltic pump according to claim 1, wherein a limit post is arranged on the periphery of the movable rod, a limit piece is fixed on the body, the limit piece is sleeved outside the movable rod and provided with a limit hole extending along the axial direction of the limit piece, and the limit post is positioned in the limit hole.

5. A micro-liquid peristaltic pump according to claim 1, wherein the movable rod is provided with an axially extending transmission hole, the driving assembly comprises a motor and a screw, an output shaft of the motor is connected with the screw, and the screw is inserted into the transmission hole and is in threaded fit with the transmission hole to realize transmission.

6. A micro-liquid peristaltic pump according to claim 1, wherein the body comprises an upper shell and a base, the base is fixed at one end of the upper shell and provided with the liquid cavity, the first hole and the second hole, the driving component is arranged at the other end of the upper shell, and the movable rod penetrates through the upper shell and one end of the movable rod is inserted into the base.

7. A urine testing device comprises a shell and a urine analysis assembly, wherein the urine analysis assembly is located in the shell, and is characterized by further comprising a micro-liquid peristaltic pump according to any one of claims 1 to 6, the first hole is connected with an adapter, the adapter is provided with a plurality of joints, the joints are communicated with a liquid cavity, the second hole is connected with the urine analysis assembly to convey urine to the urine analysis assembly, and the control unit is further connected with the urine analysis assembly to obtain analysis results.

8. The urine testing device of claim 7, further comprising a fluid injection assembly and a fluid injection valve, wherein the fluid injection valve is coupled between the second aperture and the fluid injection assembly, and wherein the fluid injection assembly is coupled to the urine analysis assembly.

9. The urine test device according to claim 8, further comprising a mounting seat, wherein the housing is covered outside the mounting seat, the urine analysis assembly is mounted on the mounting seat and comprises a test paper box, an optical analysis unit and a driving motor, the test paper box is rotatably provided with a plurality of test paper seats for injecting urine, the driving motor is connected with and drives the test paper box to rotate so that one of the test paper seats to be injected with urine is opposite to the liquid injection assembly, and the optical analysis unit is positioned on one side of the test paper box for analyzing the test paper on the opposite test paper seat for injecting urine.

10. The urine test device of claim 9, wherein the test paper holder is internally provided with an axially-through mounting groove, rubber sleeves are arranged at two ends of the test paper holder to seal two ends of the mounting groove, the test paper is positioned in the mounting groove, the liquid injection assembly comprises a urine injection needle and an exhaust needle, the urine injection needle and the exhaust needle are respectively positioned at two ends of the test paper box, and the urine injection needle and the exhaust needle can be controlled to be inserted into the corresponding rubber sleeves to be communicated with the mounting groove.

11. The urine test device of claim 9, wherein the test paper box is provided with a framework and two fixed covers, a plurality of grooves are circumferentially distributed on the framework, a plurality of test paper seats are detachably embedded in the corresponding grooves, the two fixed covers are respectively sleeved at two ends of the framework, a transmission part is arranged on one of the fixed covers, and the driving motor is connected with and drives the transmission part to act so as to drive the framework to rotate.

12. The urine test device of claim 11, wherein one of the fixed covers is further provided with a plurality of positioning grooves distributed in the circumferential direction, the urine analysis assembly is further provided with a support, a limiting rod, a push rod and an elastic piece, the support is fixed relative to the mounting seat and is provided with a containing groove, the limiting rod is rotatably connected with the support and is provided with a hook part, the push rod is movably arranged in the containing groove and is in abutting contact with the limiting rod, the elastic piece is sleeved outside the push rod, one end of the elastic piece abuts against the inner wall of the containing groove, and the other end of the elastic piece abuts against the push rod to drive the push rod to push the limiting rod to enable the hook part of the limiting rod to be embedded into the corresponding positioning groove, so that the paper box is positioned.

13. A urine testing device as claimed in claim 12, wherein one of the side walls of the locating groove is provided with a slope which extends radially outwardly from the inner wall of the locating groove and slopes circumferentially.

14. The urine test device of claim 8, further comprising an air pump and a purge valve connected between said air pump and one of said connectors, said control unit being connected to said air pump and said purge valve, said air pump, said purge valve, said first orifice, said liquid chamber, said second orifice, said liquid injection assembly, and said liquid injection valve forming a purge system.

15. The urine test device of claim 8, further comprising a water inlet valve, wherein a water outlet end of the water inlet valve is connected to the second orifice, wherein the control unit is connected to the water inlet valve, and wherein the water inlet valve, the second orifice, the fluid injection assembly, and the fluid injection valve form a cleaning system.

16. The urine testing device of claim 15, further comprising a third control valve and a reservoir, wherein the reservoir is configured to store a cleaning agent, and wherein the third control valve is coupled between the reservoir and the connector.

17. A urine testing device according to claim 8 further comprising a first control valve, a second control valve and a vacuum pump, said first control valve being connected to one of said connectors, said second control valve being connected between the other of said connectors and said vacuum pump.

18. A toilet bowl with a urine detection device comprises a bowl body, a base assembly and a cover body, wherein the base assembly is arranged at the rear part of the bowl body, and the cover body is arranged at the top of the base assembly and the top of the bowl body.