Biological reagent liquid level detection device
By designing a biological reagent liquid level detection device, a float is used to drive a connecting rod to display the liquid level height, and a cleaning mechanism is used to prevent contamination. This solves the problem of float contamination in traditional detection methods, and achieves accurate reading of the liquid level height and reliable device performance.
Patent Information
- Application Number
- CN202520776223.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-04-23
AI Technical Summary
Traditional methods for detecting the surface of biological reagents in opaque containers are prone to contamination by the float, leading to cross-contamination and affecting the accuracy of the test.
A biological reagent liquid level detection device was designed, comprising a support panel, a housing, a guide frame, a connecting rod, and a drive motor. The device uses a float to move the connecting rod to display the liquid level height, and cleans the float through a water inlet pipe and uses an air inlet pipe drying device to prevent contamination.
It enables accurate reading of the liquid level of biological reagents, prevents cross-contamination, ensures the accuracy of detection, and maintains continuous use of the device through a cleaning mechanism.
Smart Images

Figure CN223966135U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid level detection technology, specifically to a biological reagent liquid level detection device. Background Technology
[0002] Biological reagents encompass biomaterials and organic compounds used in life science research, as well as reagents for clinical diagnostics and medical research. Given the breadth and rapid development of the life sciences field, biological reagents are characterized by their diverse varieties and complex properties. During the filling process or random sampling of biological reagents, it is necessary to check the liquid level in the reagent bottle beforehand to determine the accuracy of the quantification. When conducting research on biological reagents, since most are in liquid form, they must be placed in suitable containers for detailed analysis.
[0003] Containers come in various types, some made of glass and transparent, while others are made of metal and opaque. Traditionally, methods relying on rulers and visual inspection to check liquid levels involve using a float to measure the volume of biological reagents in opaque metal containers, often accompanied by a graduated scale. However, the float comes into contact with different reagents during testing, making it prone to reagent adhesion. In continuous use, this adhered reagent can contaminate subsequent reagents, a problem that requires further improvement and resolution. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a biological reagent liquid level detection device, which solves the problems mentioned in the background art.
[0005] The solution to the above-mentioned technical problems provided by this utility model is as follows:
[0006] A biological reagent liquid level detection device includes a support panel and a housing. A frame is installed inside the support panel, a guide frame is installed on the frame, a connecting rod is provided on the guide frame, and a float is installed on the bottom end of the connecting rod.
[0007] A drive motor is mounted on the bottom end face of the frame, a lead screw is provided on the output shaft of the drive motor, and a guide rod is installed inside the frame;
[0008] A container is placed on the housing by a limiting frame, a nozzle is installed inside the housing, an air inlet pipe is embedded and fixed on the side end face of the housing, and an air outlet pipe is embedded and installed on the end of the housing opposite to the air inlet pipe.
[0009] Based on the above technical solution, the present invention can be further improved as follows.
[0010] Furthermore, the connecting rod is provided with a scale, and a limit block is installed on the top surface of the connecting rod, the limit block being slidably sleeved inside the guide frame.
[0011] The beneficial effects of adopting the above-mentioned further solutions are:
[0012] After the biological reagent is injected into the container and placed inside, the shell moves upward via a drive mechanism. The reagent inside the container contacts the float, which in turn moves the connecting rod up and down within the guide frame. The float's position, indicating the level of the biological reagent, is clearly displayed on the scale, allowing operators to accurately read the reagent level. The limiting block prevents the connecting rod from detaching from the guide frame and also limits its movement, ensuring accuracy and preventing excessive movement that could affect test results or damage the device.
[0013] Furthermore, a water inlet pipe is embedded in the front end face of the housing, and the water inlet pipe is connected to the housing.
[0014] The beneficial effects of adopting the above-mentioned further solutions are:
[0015] After the reagents in the container are tested for liquid level, the container is removed. After removal, the float and connecting rod are put back into the container. At this time, the water inlet pipe allows clean water to be introduced into the shell. The water inlet pipe can be connected to a water pump or other mechanism to draw clean water. When drawing water, the nozzle is used to clean and maintain the float and connecting rod. This can effectively remove biological reagent residues that may have adhered to the device components during the testing process, prevent cross-contamination of reagents, and ensure the accuracy of subsequent tests.
[0016] Furthermore, the air intake pipe is connected to the inner cavity of the housing, and an air intake fan and an electric heating element are installed inside the air intake pipe.
[0017] The beneficial effects of adopting the above-mentioned further solutions are:
[0018] The intake fan accelerates the gas flow into the housing, creating effective gas flow. Combined with the exhaust pipe, it allows for rapid replacement of the gas environment within the housing. The heating element heats the incoming gas, which can then be used to dry cleaned components, preventing water residue from affecting continuous operation. A one-way valve can be installed on the intake pipe via a flange to prevent sprayed cleaning water from entering the intake pipe.
[0019] Furthermore, a support rod is installed on the bottom surface of the support panel, and a support base is welded to the bottom surface of the support rod.
[0020] The beneficial effects of adopting the above-mentioned further solutions are:
[0021] The support rod and the support base work together to provide support for the entire biological reagent liquid level detection device.
[0022] Furthermore, a waste discharge pipe is embedded and fixed on the bottom end face of the housing, and a valve is installed on the waste discharge pipe via a flange.
[0023] The beneficial effects of adopting the above-mentioned further solutions are:
[0024] The waste discharge pipe is used to discharge wastewater generated during the cleaning process, as well as other waste materials produced during cleaning. A valve is installed via a flange for easy opening and closing control of the waste discharge pipe. The valve is opened when wastewater and waste need to be discharged and closed after discharge, effectively preventing leakage, maintaining a clean and hygienic working environment, and allowing the discharged wastewater to be collected and treated in wastewater treatment equipment.
[0025] Furthermore, a guide block is installed on the rear end face of the housing, the guide block is slidably sleeved on the guide rod, and the guide block is threaded onto the lead screw.
[0026] The beneficial effects of adopting the above-mentioned further solutions are:
[0027] When the drive motor rotates the lead screw, the guide block, connected to the lead screw via a thread and slidably fitted onto the guide rod, moves linearly along the guide rod under the influence of the lead screw. The guide block is connected to the housing, thus enabling the housing to move and lift the container to contact the liquid level detection mechanism for detection, and then reset after detection.
[0028] This invention provides a device for detecting the liquid level of a biological reagent. It has the following beneficial effects:
[0029] The drive motor rotates the lead screw, and the guide block moves linearly under the action of the lead screw and guide rod, thereby moving the shell so that the container can move upward to contact the liquid level detection mechanism for detection and reset.
[0030] The connecting rod is equipped with graduations, which, together with the float, visually display the liquid level of the biological reagent, allowing operators to accurately read the liquid level data. The limiting block prevents the connecting rod from detaching while ensuring its precise movement, avoiding any impact on test results or damage to the device.
[0031] The inlet pipe can be connected to an external water pump or other mechanism to draw clean water. When used with the nozzle, it can clean the testing components, effectively remove biological reagent residues, prevent cross-contamination, and ensure the accuracy of subsequent tests.
[0032] An intake fan inside the intake pipe accelerates the entry of gas, and together with the exhaust pipe, it can quickly change the gas environment inside the casing. An electric heating element heats the incoming gas to dry the cleaned components, preventing water residue from affecting continuous use, and a one-way valve prevents cleaning water from entering the intake pipe. Attached Figure Description
[0033] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.
[0034] In the attached diagram:
[0035] Figure 1 This is a front view schematic diagram of the present invention;
[0036] Figure 2 This is a cross-sectional schematic diagram of the guide frame of this utility model;
[0037] Figure 3 This is an enlarged schematic diagram of the housing of this utility model;
[0038] Figure 4 This is a cross-sectional view of the shell of this utility model.
[0039] The attached diagram lists the components represented by each number as follows:
[0040] 1. Support panel; 101. Support rod; 102. Support base; 2. Frame; 201. Drive motor; 202. Guide block; 203. Lead screw; 204. Guide rod; 3. Guide frame; 301. Connecting rod; 302. Float; 303. Limiting block; 304. Scale; 4. Housing; 401. Water inlet pipe; 402. Limiting frame; 403. Container; 404. Air outlet pipe; 405. Air inlet pipe; 406. Air intake fan; 407. Electric heating element; 408. Nozzle; 409. Waste discharge pipe. Detailed Implementation
[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0042] Please see Figures 1 to 4 As shown, the embodiments provided by this utility model are as follows:
[0043] Example 1
[0044] A biological reagent liquid level detection device includes a support panel 1 and a housing 4. A frame 2 is installed inside the support panel 1, a guide frame 3 is installed on the frame 2, the guide frame 3 is provided with a connecting rod 301, and a float 302 is installed on the bottom end face of the connecting rod 301.
[0045] A drive motor 201 is installed on the bottom end face of the frame 2, a lead screw 203 is provided on the output shaft of the drive motor 201, and a guide rod 204 is installed inside the frame 2.
[0046] A container 403 is placed on the housing 4 by a limiting bracket 402. A nozzle 408 is installed inside the housing 4. An air inlet pipe 405 is embedded and fixed on the side end face of the housing 4. An air outlet pipe 404 is embedded and installed on the end of the housing 4 away from the air inlet pipe 405.
[0047] The connecting rod 301 is equipped with a scale 304, and a limiting block 303 is installed on the top surface of the connecting rod 301. The limiting block 303 is slidably sleeved in the guide frame 3. After the biological reagent is injected into the container 403 and placed there, when the shell 4 is driven upward by the drive mechanism, the reagent in the container 403 contacts the float 302. The float 302 can drive the connecting rod 301 to move up and down within the guide frame 3. At this time, the scale 304 can be used to visually display the height of the float 302, that is, the liquid level of the biological reagent, so that the operator can accurately read the liquid level data of the reagent. The limiting block 303 can prevent the connecting rod 301 from detaching from the guide frame 3, and also play a limiting role in the movement of the connecting rod 301, ensuring the accuracy of its movement and avoiding the impact on the detection results or damage to the device due to excessive movement.
[0048] A water inlet pipe 401 is embedded in the front end face of the housing 4 and is connected to the housing 4. After the reagent in the container 403 is tested for liquid level, the personnel remove the container 403. After removal, the float 302 and the connecting rod 301 enter the container 403. At this time, the water inlet pipe 401 can introduce clean water into the housing 4. The water inlet pipe 401 can be connected to a water pump or other mechanism to extract clean water. When extracting water, the nozzle 408 is used to clean and maintain the float 302 and the connecting rod 301. This can effectively remove biological reagent residues that may adhere to the device components during the testing process, prevent cross-contamination of reagents, and ensure the accuracy of subsequent tests.
[0049] A support rod 101 is installed on the bottom surface of the support panel 1, and a support base 102 is welded to the bottom surface of the support rod 101. The support rod 101 and the support base 102 work together to provide support for the entire biological reagent liquid level detection device.
[0050] Example 2
[0051] To dry the area after cleaning and maintenance and prevent water from adhering and affecting continuous use, for example, such as Figures 1 to 4 As shown, this utility model also includes:
[0052] The air inlet pipe 405 is connected to the inner cavity of the housing 4, and an air inlet fan 406 and an electric heating element 407 are installed inside the air inlet pipe 405. The air inlet fan 406 can accelerate the speed at which gas enters the housing 4, forming an effective gas flow. Together with the air outlet pipe 404, it can quickly change the gas environment inside the housing 4. The electric heating element 407 can heat the incoming gas. The heated gas can be used to dry the cleaned device components, preventing water residue from affecting the continuous use of the device. In addition, a one-way valve can be installed on the air inlet pipe 405 through a flange to prevent the sprayed cleaning water from entering the air inlet pipe 405.
[0053] A waste discharge pipe 409 is embedded and fixed on the bottom end face of the housing 4, and a valve is installed on the waste discharge pipe 409 via a flange. The waste discharge pipe 409 is used to discharge wastewater generated during the cleaning process and other waste generated during the cleaning process. The valve installed via the flange facilitates the opening and closing control of the waste discharge pipe 409. The valve is opened when wastewater and waste need to be discharged, and closed after discharge, which can effectively prevent wastewater and waste leakage, maintain the cleanliness and hygiene of the working environment, and the discharged wastewater can be collected and discharged into the sewage treatment equipment for treatment.
[0054] A guide block 202 is installed on the rear end face of the housing 4. The guide block 202 is slidably sleeved on the guide rod 204, and is threadedly mounted on the lead screw 203. When the drive motor 201 drives the lead screw 203 to rotate, the guide block 202, connected to the lead screw 203 by the thread and slidably sleeved on the guide rod 204, will move linearly along the guide rod 204 under the drive of the lead screw 203. The guide block 202 is connected to the housing 4, thereby enabling the housing 4 to move, allowing the housing 4 to move the container 403 upward to contact the liquid level detection mechanism for detection, and then reset after detection.
[0055] Working principle:
[0056] Reagent placement: Place the container 403 containing the biological reagent on the shell 4 via the limiting frame 402.
[0057] Liquid Level Detection: When the level of the biological reagent needs to be detected, the drive motor 201 starts, and its output shaft drives the lead screw 203 to rotate. Since the guide block 202, installed on the rear end face of the housing 4, is threaded onto the lead screw 203 and slidably sleeved on the guide rod 204, the guide block 202 moves linearly along the guide rod 204 under the drive of the lead screw 203, thereby causing the housing 4 and the container 403 placed on it to move upwards. The reagent inside the container 403 contacts the float 302 at the bottom of the connecting rod 301 on the guide frame 3. As the container 403 continues to rise, the float 302 drives the connecting rod 301 to move upwards within the guide frame 3. At this time, the operator can visually read the height of the biological reagent liquid level according to the scale 304 on the connecting rod 301. The limiting block 303 is installed on the top surface of the connecting rod 301 and is slidably sleeved in the guide frame 3. On the one hand, it prevents the connecting rod 301 from disengaging from the guide frame 3, and on the other hand, it ensures the accuracy of the movement of the connecting rod 301, avoiding the impact on the test results or damage to the device due to excessive movement.
[0058] Post-test cleaning: After testing, the operator removes container 403, leaving float 302 and connecting rod 301 inside. Water inlet pipe 401 is located on the front end of housing 4 and connected to it, allowing for connection to external pumps or other mechanisms to draw cleaning water. The cleaning water enters housing 4 through inlet pipe 401, working in conjunction with nozzles 408 installed inside housing 4 to clean float 302 and connecting rod 301, effectively removing biological reagent residues adhering to the device components during testing, preventing cross-contamination, and ensuring the accuracy of subsequent tests.
[0059] Component Drying: The air inlet pipe 405 is embedded and fixed to the side end face of the housing 4, communicating with the inner cavity of the housing 4. An air inlet fan 406 and an electric heating element 407 are installed inside the air inlet pipe 405. The air inlet fan 406 accelerates the speed at which gas enters the housing 4, and, in conjunction with the air outlet pipe 404, can quickly change the gas environment inside the housing 4. The electric heating element 407 heats the incoming gas, and the heated gas is used to dry the cleaned float 302, connecting rod 301, and other device components, preventing water residue from affecting the continuous use of the device. A one-way valve is installed on the air inlet pipe 405 via a flange to prevent the sprayed cleaning water from entering the air inlet pipe 405.
[0060] Wastewater Discharge: A wastewater discharge pipe 409 is embedded and fixed at the bottom end of the casing 4. The wastewater discharge pipe 409 is used to discharge wastewater generated during the cleaning process and other waste materials. A valve is installed on the wastewater discharge pipe 409 via a flange. The valve is opened when wastewater and waste need to be discharged and closed after discharge, effectively preventing wastewater and waste leakage and maintaining a clean and hygienic working environment. The discharged wastewater can be collected and discharged into a wastewater treatment plant for further treatment.
[0061] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0062] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A biological reagent liquid level detection device, comprising a support panel (1) and a housing (4), wherein a frame (2) is installed inside the support panel (1), a guide frame (3) is installed on the frame (2), the guide frame (3) is provided with a connecting rod (301), and a float (302) is installed on the bottom end face of the connecting rod (301), characterized in that: A drive motor (201) is installed on the bottom end face of the frame (2), a lead screw (203) is provided on the output shaft of the drive motor (201), and a guide rod (204) is installed inside the frame (2). A container (403) is placed on the housing (4) by a limiting frame (402). A nozzle (408) is installed inside the housing (4). An air inlet pipe (405) is embedded and fixed on the side end face of the housing (4). An air outlet pipe (404) is embedded and installed on the end of the housing (4) away from the air inlet pipe (405).
2. The biological reagent liquid level detection device according to claim 1, characterized in that: The connecting rod (301) is provided with a scale (304), and a limit block (303) is installed on the top surface of the connecting rod (301). The limit block (303) is slidably sleeved in the guide frame (3).
3. The biological reagent liquid level detection device according to claim 1, characterized in that: A water inlet pipe (401) is embedded in the front end face of the housing (4), and the water inlet pipe (401) is connected to the housing (4).
4. The biological reagent liquid level detection device according to claim 1, characterized in that: The air intake pipe (405) is connected to the inner cavity of the housing (4), and an air intake fan (406) and an electric heating tube (407) are provided inside the air intake pipe (405).
5. The biological reagent liquid level detection device according to claim 1, characterized in that: The bottom end face of the support panel (1) is equipped with a support rod (101), and the bottom end face of the support rod (101) is welded with a support base (102).
6. The biological reagent liquid level detection device according to claim 1, characterized in that: The bottom end face of the housing (4) is embedded with a waste discharge pipe (409), and a valve is installed on the waste discharge pipe (409) via a flange.
7. The biological reagent liquid level detection device according to claim 1, characterized in that: A guide block (202) is installed on the rear end face of the housing (4). The guide block (202) is slidably sleeved on the guide rod (204), and the guide block (202) is threadedly installed on the lead screw (203).