A urine extraction storage device for testing

Abstract

The application is suitable for the technical field of urine detection, and provides a urine extraction and storage device for detection, which comprises a storage bottle, a leading-out pipe, a handle, a leading-in pipe, a rubber plug, a connecting pipe, a branch pipe, a fixing plate, a strip-shaped groove, a plugging mechanism and a closing mechanism, the closing mechanism is composed of a locker, a top closing assembly and a lateral closing assembly; the plugging mechanism cooperates with the rubber plug to realize double sealing of the leading-in pipe, form a sealing system covering the whole process of urine leading-in, storage and transportation, guarantee the purity of the urine sample and improve the accuracy of urine detection data; the locker can drive the top closing assembly and the lateral closing assembly to work simultaneously through only a screwing action, complete double sealing of the leading-out pipe port and the lateral side, completely block the communication path between the leading-out pipe and the outside world, reduce the sample exposure risk during sampling and guarantee the purity of the urine sample during transportation and storage.

Description

Technical Field

[0001] This invention belongs to the field of urine testing technology, and particularly relates to a urine extraction and storage device for testing. Background Technology

[0002] Urine testing is an important basic means of clinical diagnosis of urinary system diseases, metabolic diseases and systemic diseases. The accuracy of the test results directly depends on the purity of the urine sample throughout the entire process of extraction, storage and transportation. If the sample is contaminated by external impurities (such as dust or water vapor) or the composition changes due to sealing failure, it will directly cause test errors and even mislead clinical diagnosis.

[0003] Existing urine extraction and storage devices mainly consist of a storage bottle body, an inlet assembly, an outlet assembly, and a basic sealing structure. The inlet assembly includes an inlet tube fixed to the top of the storage bottle and a sealing cap at the tube end, used to guide the injection of urine, or a simple one-way valve (such as a duckbill valve) is installed in the inlet tube to prevent backflow. The end of the inlet tube is mostly a threaded sealing cap or a rubber stopper. The outlet assembly is an outlet tube located on the lower side wall of the storage bottle. The port is sealed with a threaded cap or a stopcock valve for sample removal during subsequent testing. The end of the outlet tube relies on the fit between the threaded cap and the tube wall for sealing, or an O-ring is added at the thread.

[0004] Although existing devices can perform the basic functions of extraction, collection, and sealing, they still have certain shortcomings in practical use: First, the sealing structure of the inlet tube in existing devices mostly relies on manual capping or one-way valve check valves. Manual capping is prone to problems with loose sealing, which can easily lead to urine leakage due to transportation bumps. One-way valves are prone to aging and deterioration of sealing performance after long-term use, resulting in poor sealing effect. Second, the sealing structure of the outlet tube relies on a single radial seal with a threaded O-ring. There are unavoidable tolerances in thread machining. Even with the addition of O-rings, it is still difficult to completely fill the thread gaps. External moisture and dust can easily enter the storage bottle through the gaps, causing sample contamination and reducing the accuracy of urine test data.

[0005] Therefore, in view of the above situation, there is an urgent need to develop a urine extraction and storage device for testing in order to overcome the shortcomings in current practical applications. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a urine extraction and storage device for testing, so as to solve the problems in the background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A urine extraction and storage device for testing includes a storage bottle, with an outlet tube and a handle installed on both sides of the storage bottle. The outlet tube is connected to the inner wall of the storage bottle. An inlet tube is fixedly extended into the top of the storage bottle and fitted with a rubber stopper. A connecting tube and a branch tube are respectively installed at the bottom of the inlet tube and communicate with it. The connecting tube and the inlet tube are concentric. The branch tube is perpendicular to the connecting tube and fixedly connected to it. A fixing plate is symmetrically fixed on one side of the connecting tube, and a strip groove is formed on one side of the connecting tube. The strip groove is located between the two fixing plates. A sealing mechanism is provided at the bottom of the branch tube. One end of the sealing mechanism is slidably connected to the inner wall of the connecting tube, and the middle part of the sealing mechanism is rotatably mounted on the fixing plate. The other end of the sealing mechanism is located inside the storage bottle and floats on the liquid surface inside the storage bottle.

[0009] A sealing mechanism is installed on the outlet tube. The sealing mechanism consists of a locking device, a top sealing component, and a side sealing component. The side sealing component is installed on the outer wall of the outlet tube and contacts the inner wall of the bottom of the locking device. The locking device is threadedly installed at the port of the outlet tube. An inclined step is provided on the inner wall of the top of the locking device. The inclined step has guide grooves distributed circumferentially parallel to its inclined trajectory. The top sealing component is located on the inner side of the top of the locking device and slides with the guide grooves. The bottom of the top sealing component contacts the port of the outlet tube.

[0010] As a further technical solution of the present invention, the top sealing assembly includes guide blocks, sealing plates and elastic sealing rings. The sealing plates are circumferentially distributed on the inner side of the top of the locking device. Guide blocks that are slidably connected to guide grooves are fixed on the outer sides of multiple sealing plates. The elastic sealing rings are disposed at the bottom of the sealing plates, and the bottoms of multiple sealing plates are connected to the same elastic sealing ring.

[0011] As a further technical solution of the present invention, the sealing plate is a fan-shaped structure, and the end face of the sealing plate that contacts the adjacent sealing plate is provided with a tenon and groove engaging structure. The end face of the sealing plate near the inner wall of the inclined platform is provided with an inclined part, the inclination angle of the inclined part is consistent with the inclination angle of the inclined platform and fits against the inner wall of the inclined platform.

[0012] As a further technical solution of the present invention, an assembly groove is provided on the inner wall of the bottom of the locking device. The assembly groove is used to allow the lateral sealing component to enter the interior of the locking device. An annular sealing groove is provided on the inner wall of the assembly groove. The sealing groove cooperates with the lateral sealing component to complete the lateral sealing of the outlet tube.

[0013] As a further technical solution of the present invention, the lateral sealing assembly includes an annular seat, a pressure block, an expansion member, and a pressure plate. The annular seat is fixed on the outer wall of the outlet pipe and away from the port of the outlet pipe. An annular groove is provided on the annular seat. A vent hole with an annular groove is distributed circumferentially in the middle of the side wall of the annular seat. Mounting grooves are provided at both the upper and lower ends of the side wall of the annular seat. One end of the pressure block is slidably installed in the annular groove, and the other end of the pressure block extends to the top of the annular seat and contacts the inner wall of the mounting groove. The expansion member is disposed on the outer side of the annular seat, and both the upper and lower ends of the expansion member are fixed in the mounting groove by the pressure plate. The inner side of the middle part of the expansion member communicates with the vent hole, and the outer side of the middle part of the expansion member cooperates with the sealing groove.

[0014] As a further technical solution of the present invention, the expansion member, the air guide hole, the annular groove and the pressure block together constitute a sealed space. The expansion member, the pressure block and the pressure plate are all annular structures. The material of the expansion member is a methyl vinyl silicone rubber with a U-shaped cross section.

[0015] As a further technical solution of the present invention, the sealing mechanism includes a sliding column, a first connecting rod, a second connecting rod, and a float. The sliding column is slidably installed in the connecting pipe. One side of the sliding column is rotatably connected to one end of the first connecting rod. The middle part of the first connecting rod passes through the strip groove and is rotatably installed on the fixed plate. The other end of the first connecting rod is rotatably connected to the second connecting rod, which is rotatably installed on the fixed plate. A float is fixed to the tail of the second connecting rod.

[0016] As a further technical solution of the present invention, the first connecting rod is a straight rod structure, and the second connecting rod is an L-shaped rod structure.

[0017] As a further technical solution of the present invention, the sliding column is a cylindrical structure formed by splicing two semi-circular rotating bodies together, and the outer wall of the sliding column is provided with rubber rings that contact the inner wall of the connecting pipe.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The sealing mechanism can not only seal the connection between the branch tube and the connecting tube through its side, thereby blocking the connection between the branch tube and the inlet tube and achieving adaptive sealing based on the urine level in the storage bottle, without requiring medical staff or patients to manually close the inlet channel, but is also automatically triggered by the liquid level, improving the practicality and convenience of the device; it can also seal the bottom of the inlet tube through its top to prevent urine backflow, and the rubber stopper can seal the top of the inlet tube. When severe bumps occur during transportation, causing the sealing mechanism to temporarily fail, the rubber stopper can serve as the last line of defense for sealing the inlet tube, preventing external dust or moisture and other impurities from entering the storage bottle through the inlet tube, thus achieving a double seal for the inlet tube, forming a sealing system covering the entire process of urine inlet, storage and transportation, which not only ensures the purity of the urine sample and improves the accuracy of urine test data, but also takes into account the ease of operation;

[0020] By simply screwing the locking device in, the top sealing component can be driven to retract inward to seal the top port of the locking device, while the side component can be driven to expand outward to seal the bottom of the locking device. This simultaneously achieves a double seal on both the outlet tube port and the side, completely blocking the connection between the outlet tube and the outside world, reducing the sealing operation time, and lowering the risk of sample exposure during sampling. This ensures the purity of urine samples during transportation and storage, and simplifies operation through the screw-in-seal linkage design, meeting the dual requirements of urine testing for sealing reliability and ease of operation.

[0021] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a urine extraction and storage device for testing provided in an embodiment of the present invention.

[0023] Figure 2 This is a cross-sectional view of the urine extraction and storage device for testing provided in an embodiment of the present invention.

[0024] Figure 3 for Figure 1 A schematic diagram of the structure of the outlet tube, locking device, and top sealing assembly.

[0025] Figure 4 for Figure 3 The structural bottom view.

[0026] Figure 5 for Figure 3 A schematic diagram of the structure after the locking device is hidden.

[0027] Figure 6 for Figure 5Exploded view of the mechanism of the central outlet tube, top closure assembly, and side closure assembly.

[0028] Figure 7 for Figure 3 A front view of the structural section.

[0029] Figure 8 for Figure 7 Enlarged view of the structure at point A in the middle.

[0030] Figure 9 for Figure 7 Enlarged view of the structure at point B.

[0031] Figure 10 for Figure 2 A schematic diagram of the inlet tube and the sealing mechanism.

[0032] Figure 11 for Figure 10 Exploded view of the inlet tube and sealing mechanism.

[0033] Reference numerals: 100-Storage bottle, 200-Handle, 300-Inlet tube, 310-Rubber stopper, 320-Connecting tube, 330-Branch tube, 340-Fixing plate, 350-Strip groove, 400-Outlet tube, 500-Locking device, 510-Inclined platform, 520-Guide groove, 530-Assembly groove, 540-Sealing groove, 600-Top sealing assembly, 610-Guide block, 620-Sealing plate, 630-Inclined part, 640-Elastic sealing ring, 700-Side sealing assembly, 710-Annular seat, 711-Annular groove, 712-Air vent, 713-Mounting groove, 720-Pressure block, 730-Expansion part, 740-Pressure plate, 800-Sealing mechanism, 810-Sliding column, 820-Link 1, 830-Link 2, 840-Float ball, 850-Rubber ring. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0035] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0036] like Figures 1 to 11As shown, a urine extraction and storage device for testing provided in one embodiment of the present invention includes a storage bottle 100. A discharge tube 400 and a handle 200 are respectively installed on both sides of the storage bottle 100. The discharge tube 400 is connected to the inner wall of the storage bottle 100. An inlet tube 300 is fixedly extended into the top of the storage bottle 100. A rubber stopper 310 is installed on the top of the inlet tube 300. A connecting tube 320 and a branch tube 330 communicating with the bottom of the inlet tube 300 are respectively installed thereon. The connecting tube 320 is concentric with the inlet tube 300, and the branch tube 330 is perpendicular to the bottom. A connecting pipe 320 is fixedly connected to the connecting pipe 320. A fixing plate 340 is symmetrically fixed on one side of the connecting pipe 320, and a strip groove 350 is opened on one side of the connecting pipe 320. The strip groove 350 is located between two fixing plates 340. A sealing mechanism 800 is provided at the bottom of the branch pipe 330. One end of the sealing mechanism 800 is slidably connected to the inner wall of the connecting pipe 320. The middle part of the sealing mechanism 800 is rotatably mounted on the fixing plate 340. The other end of the sealing mechanism 800 is located inside the storage bottle 100 and floats on the liquid surface inside the storage bottle 100.

[0037] Initially, the storage bottle 100 is empty. Under gravity, one end of the sealing mechanism 800 slides downwards within the connecting tube 320, positioning it below the branch tube 330 and ensuring communication between the branch tube 330 and the inlet tube 300. When urine is present in the storage bottle 100 and the urine level rises to a certain height, the other end of the sealing mechanism 800 moves upwards within the connecting tube 320 under buoyancy. This upward movement of the sealing mechanism 800 not only seals the connection between the branch tube 330 and the connecting tube 320, thus blocking the communication between the branch tube 330 and the inlet tube 300, but also achieves adaptive sealing of the urine level within the storage bottle 100 without requiring additional steps. The inlet channel can be manually closed by medical staff or patients, and is automatically triggered by the liquid level, improving the practicality and convenience of the device. The sealing mechanism 800 can also seal the bottom of the inlet tube 300 with its top to prevent urine backflow. The rubber stopper 310 can seal the top of the inlet tube 300. When severe bumps occur during transportation, causing the sealing mechanism 800 to temporarily fail, the rubber stopper 310 can serve as the last line of defense for sealing the inlet tube 300, preventing external dust or moisture and other impurities from entering the storage bottle 100 through the inlet tube 300. This achieves a double seal for the inlet tube 300, forming a sealing system covering the entire process of urine inlet, storage and transportation. This ensures the purity of the urine sample, improves the accuracy of urine test data, and also takes into account the ease of operation.

[0038] A closing mechanism is installed on the outlet tube 400. The closing mechanism consists of a locking device 500, a top closing component 600, and a side closing component 700. The side closing component 700 is installed on the outer wall of the outlet tube 400 and contacts the inner wall of the bottom of the locking device 500. The locking device 500 is threadedly installed at the port of the outlet tube 400. An inclined step 510 is provided on the inner wall of the top of the locking device 500. The inclined step 510 has guide grooves 520 distributed circumferentially parallel to its inclined trajectory. The top closing component 600 is located on the inner side of the top of the locking device 500 and slides with the guide grooves 520. The bottom of the top closing component 600 contacts the port of the outlet tube 400.

[0039] Initially, the top sealing component 600 slides into the bottom of the guide groove 520 and is in the open state, while the side sealing component 700 is in the retracted state and contacts the inner wall of the bottom of the locking device 500. When the locking device 500 is screwed into the outlet tube 400, the locking device 500, through the tilting step 510 and its engagement with the port of the outlet tube 400, can drive the top sealing component 600 to retract inward, thereby completing the closure of the top port of the locking device 500. The locking device 500, through screwing in, can drive the side sealing component 700 to unfold outward and contact the inner wall of the bottom of the locking device 500. The side sealing component 700, through contact with the inner wall of the bottom of the locking device 500... The locking device 500, which works in conjunction with the outer wall of the outlet tube 400, can seal the bottom of the locking device 500, solving the leakage problem caused by machining errors in traditional threaded connections. It also reduces the intrusion rate of impurities into the storage bottle 100 through the outlet tube 400. Furthermore, the locking device 500 can simultaneously seal the outlet tube 400's port and side by simply screwing it in, completely blocking the outlet tube 400's connection to the outside world. This reduces the sealing operation time and lowers the risk of sample exposure during sampling. This ensures the purity of urine samples during transportation and storage, and simplifies operation through the screw-in-seal linkage design, meeting the dual requirements of urine testing for sealing reliability and ease of operation.

[0040] In a preferred embodiment, the rubber stopper 310 is preferably made of butyl rubber, which has excellent chemical resistance and sealing properties;

[0041] The locking device 500 preferably adopts a circular sleeve structure, and the outer wall of the locking device 500 is knurled to increase the friction when twisting, so that medical staff can easily screw it in or out.

[0042] like Figures 2 to 9As shown, in a preferred embodiment of the present invention, the top sealing assembly 600 includes a guide block 610, a sealing plate 620, and an elastic sealing ring 640. The sealing plates 620 are circumferentially distributed on the inner side of the top of the locking device 500. The outer sides of the plurality of sealing plates 620 are all fixed with guide blocks 610 that are slidably connected to the guide groove 520. The elastic sealing ring 640 is disposed at the bottom of the sealing plate 620, and the bottoms of the plurality of sealing plates 620 are all connected to the same elastic sealing ring 640.

[0043] The sealing plate 620 preferably adopts a fan-shaped structure, and the end face of the sealing plate 620 that contacts the adjacent sealing plate 620 is provided with a tenon and groove engaging structure. This can increase the sealing performance of the sealing plate 620 to the outlet tube 400 port, blocking the entry of external impurities or moisture. The end face of the sealing plate 620 near the inner wall of the inclined platform 510 is provided with an inclined part 630. The inclination angle of the inclined part 630 is consistent with the inclination angle of the inclined platform 510 and fits against the inner wall of the inclined platform 510. This allows the inclined platform 510 to apply a uniform radial contraction force to the sealing plate 620 through the inclined part 630 when it is screwed in with the locking device 500, avoiding single-point force that could cause the sealing plate 620 to jam or deviate. Furthermore, the fitting method between the inclined part 630 and the inclined platform 510 can further enhance its sealing performance to the outlet tube 400 port and reduce the risk of sample exposure during sampling.

[0044] Initially, the guide block 610 is slidably connected to the bottom of the guide groove 520, and the multiple sealing plates 620 are in an outwardly expanding state, so that the port of the outlet tube 400 is in a state of communication with the outside. When the locking device 500 is screwed into the outlet tube 400, the locking device 500, through the tilting step 510 and its cooperation with the port of the outlet tube 400, can drive the multiple guide blocks 610 to slide synchronously upward in their respective guide grooves 520. The multiple guide blocks 610 drive their respective sealing plates 620 to move upward in a tilting manner, so that the multiple sealing plates 620 can retract radially, thereby completing the locking. The sealing of the top port of the device 500 reduces the intrusion rate of impurities into the storage bottle 100 through the outlet tube 400. At the same time, multiple sealing plates 620 can cooperate with the side sealing component 700 to simultaneously complete the double sealing of the outlet tube 400 port and side, completely blocking the connection path between the outlet tube 400 and the outside world, reducing the sealing operation time, and reducing the risk of sample exposure during sampling. This ensures the purity of urine samples during transportation and storage, and simplifies the operation through the screw-in sealing linkage design, meeting the dual requirements of urine testing for sealing reliability and ease of operation.

[0045] In a preferred embodiment, the sealing plate 620 is preferably made of homopolymer polyoxymethylene, which can avoid chemical reaction with urea, uric acid or electrolytes in urine, thereby avoiding material leaching from contaminating urine samples and ensuring the accuracy of urine test data. It can achieve the structural requirements of fan shape, inclined part 630 and snap-fit ​​structure through precision injection molding.

[0046] The elastic sealing ring 640 is preferably made of methyl vinyl silicone rubber, which has a high elastic recovery rate and is corrosion-resistant and aging-resistant, thus solving the problems of ordinary rubber being easily corroded by urine and hardening due to aging.

[0047] like Figures 2 to 8 As shown, in a preferred embodiment of the present invention, an assembly groove 530 is provided on the inner wall of the bottom of the locking device 500. The assembly groove 530 allows the lateral sealing component 700 to enter the locking device 500 effectively and smoothly. An annular sealing groove 540 is provided on the inner wall of the assembly groove 530. The sealing groove 540 cooperates with the lateral sealing component 700 to complete the lateral sealing of the outlet tube 400.

[0048] The lateral sealing assembly 700 includes an annular seat 710, a pressure block 720, an expansion member 730, and a pressure plate 740. The annular seat 710 is fixed to the outer wall of the outlet pipe 400 and away from the port of the outlet pipe 400. An annular groove 711 is formed on the annular seat 710. Air guide holes 712, connected to the annular groove 711, are circumferentially distributed in the middle of the side wall of the annular seat 710. Mounting grooves 713 are formed at both the upper and lower ends of the side wall of the annular seat 710. The pressure block 720... One end of the 20 is slidably installed in the annular groove 711, and the other end of the pressure block 720 extends above the annular seat 710 and contacts the inner wall of the assembly groove 530. The expansion member 730 is disposed on the outside of the annular seat 710, and both the upper and lower ends of the expansion member 730 are fixed in the mounting groove 713 by the pressure plate 740. The inner side of the middle part of the expansion member 730 communicates with the air guide hole 712, and the outer side of the middle part of the expansion member 730 cooperates with the sealing groove 540.

[0049] The expansion member 730, the air guide hole 712, the annular groove 711, and the pressure block 720 together form a sealed space. The expansion member 730, the pressure block 720, and the pressure plate 740 are preferably all of annular structure. The pressure block 720 can effectively and stably fix the expansion member 730 to the annular seat 710 by adhesive or screw fastening. At the same time, the pressure block 720 can seal the upper and lower ends of the expansion member 730 to ensure its overall sealing performance. The material of the expansion member 730 is preferably a methyl vinyl silicone rubber with a U-shaped cross section. In the initial state, it is in a contracted state, which facilitates its smooth entry into the assembly groove 530 of the locking device 500. When gas rushes in, the U-shaped groove expands outward, the cross-sectional height increases, and it forms an interference fit seal with the inner wall of the sealing groove 540, increasing the contact area, completely filling the thread gap, and solving the leakage problem caused by machining errors in traditional thread seals.

[0050] Initially, the expansion member 730, through its own elastic force, drives the gas in the sealed space to move into the annular groove 711, causing one end of the pressure block 720 to move out of the annular groove 711. At this time, the expansion member 730 is in a contracted state, facilitating its smooth entry into the assembly groove 530 and engagement with the sealing ring. When the locking device 500 is screwed into the outlet pipe 400, the locking device 500, through this screwing motion, drives the pressure block 720 downwards. The downward movement of the pressure block 720 drives the gas in the sealed space to surge into the expansion member 730, causing the expansion member 730 to gradually expand and ultimately achieve effective engagement with the sealing groove 540. The expansion member 730, through expansion and engagement with the sealing groove 540... The combined design can seal the bottom of the locking device 500, thereby achieving lateral sealing of the outlet tube 400. This solves the leakage problem caused by machining errors in traditional threaded connections and reduces the intrusion rate of impurities into the storage bottle 100 through the outlet tube 400. Simultaneously, it can work with the top sealing component 600 to simultaneously achieve dual sealing of the outlet tube 400's port and side, completely blocking the connection path between the outlet tube 400 and the outside world. This reduces sealing operation time and lowers the risk of sample exposure during sampling. This ensures the purity of urine samples during transportation and storage, while the screw-in-seal linkage design simplifies operation, meeting the dual requirements of urine testing for sealing reliability and ease of operation.

[0051] In a preferred embodiment, the material of the pressure block 720 is preferably a homopolymer polyoxymethylene. A sealing strip is installed between the outer wall of the pressure block 720 and the inner wall of the annular groove 711 to ensure the sealing performance of the sealed space, completely block the gas leakage between the pressure block 720 and the annular groove 711, ensure that the gas in the sealed space can fully drive the expansion member 730 to expand, and ensure the effectiveness of the lateral sealing.

[0052] The annular groove 711, air guide hole 712, and mounting groove 713 are all integrally injection molded with the annular seat 710. The base material is polypropylene, with 10% glass fiber added for reinforcement.

[0053] like Figure 2 , Figure 10 and Figure 11 As shown, in a preferred embodiment of the present invention, the sealing mechanism 800 includes a sliding column 810, a first connecting rod 820, a second connecting rod 830, and a float 840. The sliding column 810 is slidably installed in the connecting pipe 320. One side of the sliding column 810 is rotatably connected to one end of the first connecting rod 820. The middle part of the first connecting rod 820 passes through the strip groove 350 and is rotatably installed on the fixed plate 340. The other end of the first connecting rod 820 is rotatably connected to the second connecting rod 830, which is rotatably installed on the fixed plate 340. The float 840 is fixed to the tail of the second connecting rod 830.

[0054] The first connecting rod 820 is preferably a straight rod structure, and the second connecting rod 830 is preferably an L-shaped rod structure;

[0055] The sliding column 810 preferably adopts a cylindrical structure formed by splicing two semi-circular rotating bodies together. The outer wall of the sliding column 810 is distributed with rubber rings 850 that contact the inner wall of the connecting pipe 320. The rubber rings 850 can not only enhance the sealing performance of the sliding column 810 on the branch pipe 330 and the inlet pipe 300, but also stabilize the two semi-circular rotating bodies, ensuring the stability of its overall structure and extending its service life.

[0056] Initially, the storage bottle 100 is empty of urine. The float 840 rotates downward by its own weight, causing the connecting rod 830 to rotate downward. The connecting rod 830 rotates one end of the connecting rod 820 upward, and the other end of the connecting rod 820 rotates downward. At the same time, the other end of the connecting rod 820 can drive the sliding column 810 to slide downward in the connecting tube 320, so that the top of the sliding column 810 is below the branch tube 330, ensuring that the branch tube 330 and the inlet tube 300 are in a connected state.

[0057] When urine is present in the storage bottle 100 and the urine level rises to a certain height, the float 840 rotates upward under the buoyancy of the urine. The float 840, through connecting rod 1 820 and connecting rod 2 830, can drive the sliding column 810 to move upward within the connecting tube 320. This not only allows the side of the sliding column 810 to block the connection between the branch tube 330 and the connecting tube 320, thereby blocking the connection between the branch tube 330 and the inlet tube 300, achieving adaptive blocking of the urine level in the storage bottle 100, eliminating the need for medical staff or patients to manually close the inlet channel, but also automatically triggering the process based on the liquid level, improving the practicality and convenience of the device; it also allows the top of the sliding column 810 to block the bottom of the inlet tube 300, preventing backflow of urine, while the rubber stopper 310 can complete the sealing of the top of the inlet tube 300.

[0058] In a preferred embodiment, the material of the sliding column 810 is preferably a homopolymer of polyoxymethylene; the float 840 is preferably made of hollow polypropylene. Its hollow structure design can not only generate sufficient buoyancy to ensure the linkage between the first connecting rod 820 and the second connecting rod 830, but also reduce the weight of the float 840 and improve the liquid level triggering sensitivity.

[0059] The working principle of this invention is:

[0060] In the initial state, the guide block 610 is slidably connected to the bottom of the guide groove 520, and the multiple sealing plates 620 are in an outward expansion state, so that the port of the outlet pipe 400 is in a state of communication with the outside. The expansion member 730 drives the gas in the sealed space to move into the annular groove 711 through its own elastic force, so that one end of the pressure block 720 moves out of the annular groove 711, and the expansion member 730 is in a contracted state at this time, so that it can easily enter the assembly groove 530 and cooperate with the sealing ring.

[0061] When the locking device 500 is screwed into the outlet pipe 400, the locking device 500, through its tilting step 510 and its engagement with the port of the outlet pipe 400, drives multiple guide blocks 610 to slide synchronously upwards within their respective guide grooves 520. These guide blocks 610 cause their respective sealing plates 620 to move upwards, allowing the sealing plates 620 to contract radially, thus sealing the top port of the locking device 500 and reducing the intrusion rate of impurities into the storage bottle 100 through the outlet pipe 400. The screwing action of the locking device 500 also causes the pressure block 720 to move downwards. This downward movement of the pressure block 720 forces the gas within the sealed space to surge into the expansion member 730, causing the expansion member 730 to gradually expand and ultimately achieve effective sealing with the sealing groove 540. In conjunction with the expansion component 730, the expansion component 730, through expansion and engagement with the sealing groove 540, can seal the bottom of the locking device 500, thereby achieving lateral sealing of the outlet tube 400. This solves the leakage problem caused by machining errors in traditional threaded connections and reduces the intrusion rate of impurities into the storage bottle 100 through the outlet tube 400. Simultaneously, it can cooperate with the sealing plate 620 to simultaneously achieve dual sealing of the outlet tube 400's port and side, completely blocking the connection path between the outlet tube 400 and the outside world, reducing the sealing operation time, and lowering the risk of sample exposure during sampling. This ensures the purity of urine samples during transportation and storage, and simplifies operation through the screw-in-seal linkage design, meeting the dual requirements of urine testing for sealing reliability and operational convenience.

[0062] When the storage bottle 100 is empty, the float 840 rotates downwards via its own weight, causing the connecting rod 830 to rotate downwards. The connecting rod 830 then rotates one end of the connecting rod 820 upwards, while the other end rotates downwards. Simultaneously, the other end of the connecting rod 820 causes the sliding column 810 to slide downwards within the connecting tube 320, ensuring the top of the sliding column 810 is below the branch tube 330 and maintaining communication between the branch tube 330 and the inlet tube 300. When the storage bottle 100 contains urine and the urine level rises to a certain height, the float 840 rotates upwards under the buoyancy of the urine. The float 840, through the connecting rods 820 and 830, causes the sliding column 810 to move upwards within the connecting tube 320. This not only allows the side of the sliding column 810 to block the connection between the branch tube 330 and the connecting tube 320, but also prevents communication between the branch tube 330 and the inlet tube 300. In the 0-connection state, adaptive sealing of the urine level in the storage bottle 100 is achieved, eliminating the need for medical staff or patients to manually close the inlet channel. It is entirely triggered by the liquid level, improving the practicality and convenience of the device. The top of the sliding column 810 can also seal the bottom of the inlet tube 300 to prevent urine backflow. The rubber stopper 310 can seal the top of the inlet tube 300. When severe bumps occur during transportation, causing the sealing mechanism 800 to temporarily fail, the rubber stopper 310 can serve as the last line of defense for sealing the inlet tube 300, preventing external dust or moisture and other impurities from entering the storage bottle 100 through the inlet tube 300. This achieves a double seal for the inlet tube 300, forming a sealing system covering the entire process of urine inlet, storage, and transportation. This ensures the purity of the urine sample, improves the accuracy of urine test data, and also takes into account the ease of operation.

[0063] The above describes the working principle of this urine extraction and storage device for testing.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A urine extraction and storage device for testing, comprising a storage bottle, wherein an outlet tube and a handle are respectively installed on both sides of the storage bottle, the outlet tube is connected to the inner wall of the storage bottle, and an inlet tube extending into the top of the storage bottle is fixedly attached thereto, characterized in that, A rubber stopper is installed at the top of the inlet tube, and a connecting tube and a branch tube communicating with it are respectively installed at the bottom of the inlet tube. The connecting tube is concentric with the inlet tube, and the branch tube is perpendicular to the connecting tube and fixedly connected to the connecting tube. A fixing plate is symmetrically fixed on one side of the connecting tube, and a strip groove is opened on one side of the connecting tube. The strip groove is located between the two fixing plates. A sealing mechanism is provided at the bottom of the branch tube. One end of the sealing mechanism is slidably connected to the inner wall of the connecting tube, the middle part of the sealing mechanism is rotatably mounted on the fixing plate, and the other end of the sealing mechanism is located inside the storage bottle and floats on the liquid surface inside the storage bottle. A sealing mechanism is installed on the outlet tube. The sealing mechanism consists of a locking device, a top sealing component, and a side sealing component. The side sealing component is installed on the outer wall of the outlet tube and contacts the inner wall of the bottom of the locking device. The locking device is threadedly installed at the port of the outlet tube. An inclined step is provided on the inner wall of the top of the locking device. The inclined step has guide grooves distributed circumferentially parallel to its inclined trajectory. The top sealing component is located on the inner side of the top of the locking device and slides with the guide grooves. The bottom of the top sealing component contacts the port of the outlet tube.

2. The urine extraction and storage device for testing according to claim 1, characterized in that, The top sealing assembly includes guide blocks, sealing plates, and elastic sealing rings. The sealing plates are circumferentially distributed on the inner side of the top of the locking device. Guide blocks that are slidably connected to guide grooves are fixed on the outer sides of multiple sealing plates. The elastic sealing rings are disposed at the bottom of the sealing plates, and the bottoms of multiple sealing plates are connected to the same elastic sealing ring.

3. The urine extraction and storage device for testing according to claim 2, characterized in that, The sealing plate is a fan-shaped structure, and the end face of the sealing plate that contacts the adjacent sealing plate is provided with a tenon and groove engaging structure. The end face of the sealing plate near the inner wall of the inclined platform is provided with an inclined part. The inclination angle of the inclined part is consistent with the inclination angle of the inclined platform and fits against the inner wall of the inclined platform.

4. The urine extraction and storage device for testing according to claim 2, characterized in that, An assembly groove is provided on the inner wall of the bottom of the locking device. The assembly groove is used to allow the lateral sealing component to enter the interior of the locking device. An annular sealing groove is provided on the inner wall of the assembly groove. The sealing groove cooperates with the lateral sealing component to complete the lateral sealing of the outlet tube.

5. The urine extraction and storage device for testing according to claim 4, characterized in that, The lateral sealing assembly includes an annular seat, a pressure block, an expansion member, and a pressure plate. The annular seat is fixed to the outer wall of the outlet pipe and away from the port of the outlet pipe. An annular groove is formed on the annular seat. A vent hole with annular grooves is distributed circumferentially in the middle of the side wall of the annular seat. Mounting grooves are formed at both the upper and lower ends of the side wall of the annular seat. One end of the pressure block is slidably installed in the annular groove, and the other end of the pressure block extends to the top of the annular seat and contacts the inner wall of the mounting groove. The expansion member is set on the outside of the annular seat, and both the upper and lower ends of the expansion member are fixed in the mounting groove by the pressure plate. The inner side of the middle part of the expansion member communicates with the vent hole, and the outer side of the middle part of the expansion member cooperates with the sealing groove.

6. The urine extraction and storage device for testing according to claim 5, characterized in that, The expansion element, air vent, annular groove, and pressure block together form a sealed space. The expansion element, pressure block, and pressure plate are all annular structures. The material of the expansion element is a methyl vinyl silicone rubber with a U-shaped cross-section.

7. The urine extraction and storage device for testing according to claim 1, characterized in that, The sealing mechanism includes a sliding column, a first connecting rod, a second connecting rod, and a float. The sliding column is slidably installed inside the connecting pipe. One side of the sliding column is rotatably connected to one end of the first connecting rod. The middle part of the first connecting rod passes through a strip groove and is rotatably installed on a fixed plate. The other end of the first connecting rod is rotatably connected to the second connecting rod, which is rotatably installed on the fixed plate. A float is fixed to the tail of the second connecting rod.

8. The urine extraction and storage device for testing according to claim 7, characterized in that, The first connecting rod is a straight rod-shaped structure, and the second connecting rod is an L-shaped rod-shaped structure.

9. The urine extraction and storage device for testing according to claim 7, characterized in that, The sliding column is a cylindrical structure formed by splicing two semi-circular rotating bodies together, and rubber rings that contact the inner wall of the connecting pipe are distributed on the outer wall of the sliding column.

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