Quantitative liquid dispensing device for laboratory disinfectant water

Abstract

The utility model relates to disinfectant solution technical field, specifically disclose laboratory disinfectant quantitative solution device, including support chassis, its upper end fixedly connected with upper fixed plate, the lower part of upper fixed plate is provided with the location card frame, the surface of location card frame places the collection jar body, the lower surface fixedly connected with drive motor of upper fixed plate, the output fixedly connected with transmission disc of drive motor, the surface of transmission disc is installed and is penetrated to disinfecting stock solution jar. This laboratory disinfectant quantitative solution device, the disinfecting stock solution jar in the device is arranged in the circumference array, and different jar bodies can store multiple types disinfecting stock solution respectively, when replacing solution raw material, do not need to dismount and clean jar body, only through drive motor drives transmission disc rotation, can the target stock solution jar be transferred to the solution position, solve the problem that traditional single stock solution barrel is replaced complicatedly, greatly shorten the liquid exchange time, adapt to the diversification disinfection demand of laboratory.

Description

Technical Field

[0001] This utility model relates to the field of disinfectant solution preparation technology, specifically a quantitative solution preparation device for laboratory disinfectant. Background Technology

[0002] In laboratory settings, the selection of disinfectants must be based on the objects to be disinfected, such as work surfaces, instruments, hands, waste, the types of contaminants such as bacteria, viruses, fungi, and chemical residues, and laboratory safety regulations. Priority should be given to types that are highly efficient, low-corrosive, and have minimal interference with experiments. Laboratory disinfectants must be quantitatively prepared. The core reason for this is to balance the four key requirements of "disinfection effectiveness, operational safety, experimental accuracy, and asset protection." If the concentration is arbitrary, it may lead to disinfection failure or instrument damage, or even safety accidents such as corrosion, poisoning, fire, or even interference with experimental results. The bactericidal ability of disinfectants depends entirely on the concentration of the active ingredient. Insufficient concentration will lead to "disinfection failure," while excessive concentration will cause waste of resources and additional risks. Only quantitative preparation can accurately control the concentration.

[0003] In the laboratory, the core function of a disinfectant quantitative preparation device is to accurately control the ratio of disinfectant stock solution to diluent, avoiding errors from manual dilution, and adapting to the characteristics of different types of disinfectants. Existing preparation devices, such as the one disclosed in publication number "CN221832226U" for quantitative preparation of disinfectants, improve the accuracy, efficiency and quality stability of the production process through the quantitative preparation mechanism set by this utility model. However, in actual use, only one disinfectant stock solution tank is fixed, which is not convenient for quickly changing different types of disinfectants according to different requirements of laboratory disinfection, thus reducing the efficiency of disinfection work. Utility Model Content

[0004] The purpose of this invention is to provide a quantitative dispensing device for laboratory disinfectant solutions, thereby solving the problem mentioned in the background art that only one disinfectant concentrate tank is fixedly installed, which is not convenient for quickly changing different types of disinfectant solutions according to different laboratory disinfection requirements, thus reducing the efficiency of disinfection work.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quantitative dispensing device for laboratory disinfectant, comprising a supporting base frame with an upper fixing plate fixedly connected to its upper end. A positioning bracket is provided below the upper fixing plate, and a collection tank is placed on the surface of the positioning bracket. A drive motor is fixedly connected to the lower surface of the upper fixing plate, and a transmission disc is fixedly connected to the output end of the drive motor. A disinfectant concentrate tank is installed through the surface of the transmission disc. A reset slide rod is installed on the inner wall of the cavity at the lower end of the disinfectant concentrate tank. A one-way sealing block is fixedly connected to the lower end of the reset slide rod. A limit baffle is fixedly connected to the front surface of the supporting base frame. A protective barrier is fixedly connected to the upper surface of the limit baffle. A diluent pipe is fixedly connected to the lower surface of one side of the limit baffle. A mixing pipe is fixedly connected to the lower end of the diluent pipe. A quantitative dispensing mechanism is provided between the supporting base frame and the limit baffle.

[0006] Preferably, the positioning card holder has a slot on its surface, and the collection tank and the positioning card holder are connected by a snap-fit. The disinfectant concentrate tanks are arranged in a circumferential array, and the lower end of the disinfectant concentrate tank is tapered.

[0007] Using the above technical solution, the bottom of the disinfectant stock solution tank is designed in a conical shape. Compared with the straight cylindrical tank bottom, the conical structure can use gravity to guide the stock solution to converge towards the tank opening. During the preparation of the solution, the stock solution in the tank can flow almost completely into the liquid guiding pipe, avoiding the waste of reagents caused by the stock solution remaining at the bottom of the tank. At the same time, it ensures that the "actual amount of stock solution used" is consistent with the "set amount" each time the solution is prepared, further improving the accuracy of the prepared solution concentration.

[0008] Preferably, the reset slide rod is slidably connected to the disinfectant concentrate tank, and a spring is connected between the reset slide rod and the disinfectant concentrate tank. The lower side surface of the one-way sealing block is in contact with the inner wall of the lower cavity of the disinfectant concentrate tank.

[0009] Using the above technical solution, when no solution is prepared, the spring force will pull the reset slide rod downward, so that the one-way sealing block fits tightly against the inner wall of the lower cavity of the disinfectant concentrate tank, forming a sealed structure to prevent the concentrate from leaking out of the tank. The concentrate will only flow out when the solution preparation is started and the liquid outlet top block pushes the one-way sealing block upward, ensuring that the concentrate is released only when needed, avoiding waste of concentrate and contamination inside the device.

[0010] Preferably, the protective enclosure is a double-layer design and is arranged in a ring shape, the mixing pipe is a Y-shaped design, and the mixing pipe is connected to the diluent pipe.

[0011] Using the above technical solution, laboratory disinfectants are mostly corrosive and irritating. The double-layered ring-shaped protective enclosure can form a "double barrier" around the liquid preparation area. If the interface of the mixing pipe is loose and causes liquid splashing, the first layer of enclosure can block most of the splashed liquid, and the second layer of enclosure can further intercept the liquid that escapes, preventing the liquid from splashing onto the operator's skin and clothing, or contaminating the surrounding experimental instruments and work surfaces, thus improving operational safety.

[0012] Preferably, the quantitative dispensing mechanism includes a support baffle, which is fixedly connected to the surface of the support base. An electric push rod is fixedly attached to the upper surface of the support baffle. A linkage clamping plate is fixedly connected to the output end of the electric push rod. A liquid guiding pipe is fixedly attached to one side of the linkage clamping plate. A dispensing top block is fixedly connected to the inner wall of the cavity of the liquid guiding pipe.

[0013] By adopting the above technical solution, the extension and retraction of the electric push rod drives the linkage plate and the liquid guiding pipe to rise and fall, thereby controlling the "height" and "duration" of the liquid outlet block lifting the one-way sealing block. The extension and retraction amount and speed of the electric push rod can be precisely set by the program. Compared with manual control of liquid outlet, it can avoid the deviation of liquid outlet volume caused by "uneven force" and "operation delay", and significantly improve the quantitative accuracy.

[0014] Preferably, the upper end of the liquid guiding pipe penetrates the lower surface of the limiting baffle, and the liquid guiding pipe and the limiting baffle are slidably connected, and the inner diameter of the liquid guiding pipe is larger than the outer diameter of the lower end of the disinfectant concentrate tank.

[0015] By adopting the above technical solution, the sliding connection between the liquid guiding pipe and the limiting baffle can limit the movement range of the liquid guiding pipe to the "vertical direction" and prevent it from swaying or tilting during the lifting process. This design can ensure that the liquid guiding pipe is always aligned with the lower end of the disinfectant concentrate tank and the interface of the mixing pipe, avoiding problems such as concentrate spillage and inaccurate flow into the mixing pipe caused by pipe deviation.

[0016] Preferably, a telescopic hose is connected between the lower end of the liquid guiding pipe and the upper surface of the other end of the mixing pipe, and the liquid outlet top block is designed in a columnar shape with an arc-shaped upper end.

[0017] Using the above technical solution, when the liquid guiding pipe is raised or lowered, the telescopic hose can extend or retract synchronously with the length of the pipe. This not only does not restrict the range of movement of the pipe, but also maintains the sealed connection between the "liquid guiding pipe and the mixing pipe". Compared with fixed rigid pipe connection, the telescopic hose can avoid the pulling and deformation of the pipe caused by raising or lowering, ensuring that the original liquid flows continuously and stably into the mixing pipe, and will not interrupt the liquid preparation process due to pipe connection problems.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the quantitative solution preparation device for laboratory disinfectant: 1. The disinfectant stock solution tanks in the device are arranged in a circular array. Different tanks can store multiple types of disinfectant stock solutions. When changing the raw materials for dispensing, there is no need to disassemble and clean the tanks. The target stock solution tank can be rotated to the dispensing position by simply driving the transmission disc to rotate through the drive motor. This solves the problem of cumbersome replacement of traditional single stock solution tanks, greatly shortens the liquid replacement time, and adapts to the diverse disinfection needs of laboratories. 2. The protective enclosure adopts a double-ring design, which can effectively block liquid splashing during the solution preparation process, prevent operators from coming into contact with corrosive disinfectant, and protect the surrounding instruments. In addition, the disinfectant stock solution tank is sealed by a one-way sealing block, which can isolate external dust and impurities when not preparing the solution, prevent the stock solution from being contaminated, and ensure that the purity of the raw materials for each solution preparation meets the experimental requirements. 3. The device relies on an electric push rod to control the quantitative dispensing mechanism. The electric push rod can precisely adjust the extension and retraction time and amplitude, thereby controlling the time when the dispensing top block opens the one-way sealing block, realizing the quantitative release of disinfectant concentrate. Combined with the Y-type mixing pipeline, it can accurately mix with the diluent without manual control, reducing operational errors, and is suitable for the strict requirements of laboratory disinfectant concentration. It is convenient and efficient to use. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the connection between the support base and the upper fixing plate of this utility model; Figure 2 This is a three-dimensional structural diagram of the connection between the drive motor and the transmission disc of this utility model; Figure 3 This is a three-dimensional structural diagram of the connection between the limiting baffle and the protective fence of this utility model; Figure 4 This is a three-dimensional structural diagram of the connection between the reset slide rod and the one-way sealing block of this utility model; Figure 5 This is a three-dimensional structural diagram of the connection between the support baffle and the electric push rod of this utility model; Figure 6 This is a three-dimensional structural diagram of the connection between the liquid guiding pipe and the liquid outlet top block of this utility model.

[0020] In the diagram: 1. Support base frame; 2. Upper fixing plate; 3. Positioning bracket; 4. Collection tank; 5. Drive motor; 6. Transmission disc; 7. Disinfectant concentrate tank; 8. Reset slide bar; 9. One-way sealing block; 10. Limiting baffle; 11. Protective enclosure; 12. Diluent pipeline; 13. Mixing pipeline; 14. Supporting baffle; 15. Electric push rod; 16. Linkage plate; 17. Liquid guiding pipeline; 18. Discharge top block. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-6 This utility model provides a technical solution: a quantitative dispensing device for laboratory disinfectant, comprising a supporting base 1, an upper fixing plate 2, a positioning bracket 3, a collection tank 4, a drive motor 5, a transmission disc 6, a disinfectant concentrate tank 7, a reset slide rod 8, a one-way sealing block 9, a limiting baffle 10, a protective enclosure 11, a diluent pipe 12, a mixing pipe 13, a supporting baffle 14, an electric push rod 15, a linkage plate 16, a liquid guiding pipe 17, and a liquid outlet top block 18. The supporting base 1 has an upper fixing plate 2 fixedly connected to its upper end, and a positioning bracket 3 is provided below the upper fixing plate 2 for positioning. A collection tank 4 is placed on the surface of the card holder 3. The surface of the positioning card holder 3 is provided with a slot. The collection tank 4 and the slot of the positioning card holder 3 form a snap-fit ​​connection. The disinfectant concentrate tanks 7 are arranged in a circumferential array. The lower end of the disinfectant concentrate tanks 7 is designed in a conical shape. Different types of disinfectant concentrates are injected into the disinfectant concentrate tanks 7 arranged in the circumferential array. When the solution is not prepared, the spring between the reset slide rod 8 and the disinfectant concentrate tank 7 pulls the one-way sealing block 9 to make it fit tightly against the inner wall of the tank, thereby sealing the concentrate. At the same time, the collection tank 4 is snapped into the slot of the positioning card holder 3, thus completing the fixation of the collection container after the solution is prepared.

[0023] A drive motor 5 is fixedly connected to the lower surface of the upper fixed plate 2. A transmission disc 6 is fixedly connected to the output end of the drive motor 5. A disinfectant concentrate tank 7 is installed through the surface of the transmission disc 6. A reset slide rod 8 is installed on the inner wall of the cavity at the lower end of the disinfectant concentrate tank 7. A one-way sealing block 9 is fixedly connected to the lower end of the reset slide rod 8. The reset slide rod 8 and the disinfectant concentrate tank 7 are in a sliding connection, and a spring is connected between the reset slide rod 8 and the disinfectant concentrate tank 7. The lower side surface of the one-way sealing block 9 is flush with the lower end of the disinfectant concentrate tank 7. The inner walls of the cavity fit together, the protective enclosure 11 is a double-layer design and is ring-shaped, the mixing pipe 13 is Y-shaped and is connected to the diluent pipe 12. According to the required type of disinfectant, the drive motor 5 is started, and the output end of the drive motor drives the transmission disc 6 to rotate, so that the disinfectant concentrate tank 7 containing the target concentrate is rotated to the top of the liquid guide pipe 17, so that the lower end of the disinfectant concentrate tank 7 is aligned with the upper opening of the liquid guide pipe 17, thus completing the docking of the concentrate tank and the outlet channel.

[0024] A limit baffle 10 is fixedly connected to the front surface of the support base 1. A protective barrier 11 is fixedly connected to the upper surface of the limit baffle 10. A diluent pipe 12 is fixedly connected to the lower surface of one side of the limit baffle 10. A mixing pipe 13 is fixedly connected to the lower end of the diluent pipe 12. The quantitative dispensing mechanism includes a support baffle 14, which is fixedly connected to the surface of the support base 1. An electric push rod 15 is fixedly connected to the upper surface of the support baffle 14. A linkage clamping plate 16 is fixedly connected to the output end of the electric push rod 15. A liquid guide tube is fixed to one side of the linkage clamping plate 16. The inner wall of the cavity of the liquid guiding pipe 17 is fixedly connected to the liquid outlet top block 18. When the electric push rod 15 on the support baffle 14 is activated, the output end of the electric push rod pushes the linkage plate 16 to move upward. The linkage plate drives the liquid guiding pipe 17 to slide vertically upward along the limit baffle 10. The liquid outlet top block 18 in the liquid guiding pipe 17 pushes open the one-way sealing block 9. The original liquid flows into the telescopic hose connected to the lower end along the liquid guiding pipe 17 and finally enters the Y-shaped mixing pipe 13. At the same time, the diluent flows into the mixing pipe 13 through the diluent pipe 12 and mixes fully with the original liquid in the pipe.

[0025] A quantitative liquid dispensing mechanism is provided between the supporting base 1 and the limiting baffle 10. The upper end of the liquid guiding pipe 17 passes through the lower surface of the limiting baffle 10, and the liquid guiding pipe 17 and the limiting baffle 10 form a sliding connection. The inner diameter of the liquid guiding pipe 17 is larger than the outer diameter of the lower end of the disinfectant concentrate tank 7. A telescopic hose is connected between the lower end of the liquid guiding pipe 17 and the upper surface of the other end of the mixing pipe 13. The liquid dispensing top block 18 is columnar, and the upper end of the liquid dispensing top block 18 is arc-shaped. The mixed disinfectant water flows into the pre-fixed collection tank 4 along the mixing pipe 13. After the liquid preparation is completed, the electric push rod 15 retracts, driving the liquid guiding pipe 17 and the liquid dispensing top block 18 to move down. The reset slide rod 8 pulls the one-way sealing block 9 under the action of the spring to reseal the disinfectant concentrate tank 7, completing one liquid preparation cycle. The operation can be repeated or the concentrate tank can be switched to prepare the next type of disinfectant water as needed.

[0026] Working principle: When using this laboratory disinfectant quantitative dispensing device, different disinfectant concentrates are injected into the disinfectant concentrate tank 7. The one-way sealing block 9 seals the concentrate, and the collection tank 4 is engaged with the positioning bracket 3. As needed, the drive motor 5 is started, which drives the transmission disc 6 to rotate, turning the target concentrate tank above the liquid guiding pipe 17. Then, the electric push rod 15 on the support baffle 14 is started, which pushes the linkage plate 16 and the liquid guiding pipe 17 to slide upward. The liquid outlet block 18 pushes open the one-way sealing block 9, and the concentrate enters the Y-shaped mixing pipe 13 through the liquid guiding pipe 17 and the telescopic hose, where it mixes with the diluent flowing into the diluent pipe 12. Finally, the mixed disinfectant flows into the collection tank 4. After the dispensing is completed, the electric push rod retracts, and the reset slide rod 8 drives the one-way sealing block 9 to seal the concentrate tank, completing the cycle. The concentrate tank can be quickly switched to achieve different disinfectant configurations, increasing the overall practicality.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quantitative dispensing device for laboratory disinfectant, comprising a supporting base (1) with an upper fixing plate (2) fixedly connected to its upper end, characterized in that: A positioning bracket (3) is provided below the upper fixing plate (2). A collection tank (4) is placed on the surface of the positioning bracket (3). A drive motor (5) is fixedly connected to the lower surface of the upper fixing plate (2). A transmission disc (6) is fixedly connected to the output end of the drive motor (5). A disinfectant stock solution tank (7) is installed through the surface of the transmission disc (6). A reset slide rod (8) is installed on the inner wall of the cavity at the lower end of the disinfectant stock solution tank (7). A one-way sealing block (9) is fixedly connected to the lower end of the reset slide rod (8). A limit baffle (10) is fixedly connected to the front surface of the support base (1). A protective barrier (11) is fixedly connected to the upper surface of the limit baffle (10). A diluent pipe (12) is fixedly connected to one side of the lower surface of the limit baffle (10). A mixing pipe (13) is fixedly connected to the lower end of the diluent pipe (12). A quantitative liquid dispensing mechanism is provided between the support base (1) and the limit baffle (10).

2. The quantitative preparation device for laboratory disinfectant according to claim 1, characterized in that: The positioning bracket (3) has a slot on its surface. The collection tank (4) and the positioning bracket (3) are connected by a slot. The disinfectant concentrate tank (7) is arranged in a circumferential array. The lower end of the disinfectant concentrate tank (7) is tapered.

3. The quantitative solution preparation device for laboratory disinfectant according to claim 1, characterized in that: The reset slide (8) is slidably connected to the disinfectant concentrate tank (7), and a spring is connected between the reset slide (8) and the disinfectant concentrate tank (7). The lower side surface of the one-way sealing block (9) is in contact with the inner wall of the lower cavity of the disinfectant concentrate tank (7).

4. The quantitative preparation device for laboratory disinfectant according to claim 1, characterized in that: The protective enclosure (11) is a double-layer design and is arranged in a ring. The mixing pipe (13) is a Y-shaped design and is connected to the diluent pipe (12).

5. The quantitative solution preparation device for laboratory disinfectant according to claim 1, characterized in that: The quantitative liquid dispensing mechanism includes a support baffle (14), which is fixedly connected to the surface of the support base (1). An electric push rod (15) is fixed on the upper surface of the support baffle (14). A linkage plate (16) is fixedly connected to the output end of the electric push rod (15). A liquid guiding pipe (17) is fixed on one side of the linkage plate (16). A liquid dispensing top block (18) is fixedly connected to the inner wall of the cavity of the liquid guiding pipe (17).

6. The quantitative preparation device for laboratory disinfectant according to claim 5, characterized in that: The upper end of the liquid guiding pipe (17) penetrates the lower surface of the limiting baffle (10), and the liquid guiding pipe (17) and the limiting baffle (10) form a sliding connection. The inner diameter of the liquid guiding pipe (17) is larger than the outer diameter of the lower end of the disinfectant stock solution tank (7).

7. The quantitative preparation device for laboratory disinfectant according to claim 5, characterized in that: A telescopic hose is connected between the lower end of the liquid guiding pipe (17) and the upper surface of the other end of the mixing pipe (13). The liquid outlet top block (18) is columnar and the upper end of the liquid outlet top block (18) is arc-shaped.

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