A drip device for a clinical laboratory

Abstract

The utility model discloses a drip device for clinical laboratory, including drip irrigation main part, drip irrigation main part one end fixed mounting has rubber head, and drip irrigation main part is away from rubber head one end fixed mounting and has installation head, is equipped with the anti -overflow device on drip irrigation main part, is equipped with the pipe device of drawing back on installation head, and the anti -overflow device includes anti -overflow pipe, and anti -overflow pipe installs on installation head, and installs the float ball in anti -overflow pipe, the utility model discloses, install anti -overflow pipe on installation head, when utilizing rubber head negative pressure to draw solution, liquid will enter disposable suction head along with, when liquid overflow disposable suction head enters anti -overflow pipe, the float ball in anti -overflow pipe rises under the buoyancy of liquid, along with the drawing of liquid, and the float ball will block the anti -overflow, can avoid excessive liquid drawing and lead to solution to enter drip irrigation main part, and press rubber head when dripping liquid, and the gas of rubber head promotes the solution in extruding anti -overflow pipe of float ball, thereby makes liquid from disposable suction head discharge.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically a dropper device for use in a laboratory. Background Technology

[0002] A dropper device for laboratory use, with announcement number CN216756475U, belongs to the field of laboratory dropper technology. It includes a tube body with a concave portion fixedly connected to its bottom. A spherical head is fixedly connected to the bottom of the concave portion. A conical ring block is fixedly connected to the outer side of the top of the tube body. The conical ring block has an annular groove, and a set of through grooves is formed on its outer side. One side of each through groove communicates with the annular groove. An annular tube is fitted inside the annular groove. The conical ring block, annular groove, through groove, and threaded cap facilitate the disassembly of the annular tube and the dropper head, making it easy to clean the tube body and prevent affecting future use. It also facilitates dropper head replacement and prevents prolonged squeezing of the dropper head, which reduces its sealing effect. The concave portion limits the flow of solution within the tube body during dripping, thus facilitating control of the dripping volume and dripping rate.

[0003] The above-mentioned device uses its own cavity to aspirate liquid. When multiple test solutions need to be aspirated, the device needs to be disassembled and cleaned each time the next solution is aspirated to avoid the residual solution in the tube wall mixing with other solutions, which makes it extremely inconvenient to use. Even with a disposable dropper cap on the head, it is easy to not control the aspiration force and cause the solution to enter the tube body. Therefore, a dropper device for laboratory use is needed to meet people's needs. Utility Model Content

[0004] The purpose of this invention is to provide a dropper device for laboratory use to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drip irrigation device for laboratory use, comprising a drip irrigation body; a rubber head is fixedly installed at one end of the drip irrigation body, and an installation head is fixedly installed at the end of the drip irrigation body away from the rubber head; an anti-overflow device is provided on the drip irrigation body, and a tube retraction device is provided on the installation head;

[0006] Preferably, the overflow prevention device includes an overflow prevention pipe, which is installed on the mounting head. A float is installed inside the overflow prevention pipe, a conical block is fixedly installed at one end of the overflow prevention pipe, and a stop block is fixedly installed at the end of the overflow prevention pipe away from the conical block. The float is installed between the conical block and the stop block.

[0007] Preferably, the mounting head has external threads, the anti-overflow tube has internal threads at the end near the conical block, and the anti-overflow tube is threadedly connected to the mounting head.

[0008] Preferably, the conical block has an overflow prevention opening, the maximum diameter of which is smaller than the maximum outer diameter of the float.

[0009] Preferably, the stop block has a through groove, and a disposable suction head is sleeved on the overflow prevention tube, with the disposable suction head communicating with the inside of the overflow prevention tube through the through groove.

[0010] Preferably, the tube ejection device includes an outer fixing sleeve, which is fixedly fitted on the outside of the drip irrigation body. A push plate is installed on the side of the drip irrigation body near the installation head, a push rod is fixedly installed on the push plate, and a push block is fixedly installed on the push rod.

[0011] Preferably, the outer fixing sleeve has a sliding groove, the push rod is slidably installed in the sliding groove, a spring is fixedly installed at one end of the sliding groove, and the other end of the spring is fixedly connected to the end of the push rod away from the push block.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) In this utility model, by installing an anti-overflow tube on the installation head, when the solution is drawn by the negative pressure of the rubber head, the liquid will enter the disposable suction head. When the liquid overflows from the disposable suction head and enters the anti-overflow tube, the float in the anti-overflow tube rises under the buoyancy generated by the liquid. As the liquid is drawn, the float will block the anti-overflow port, which can prevent excessive liquid from being drawn and causing the solution to enter the drip irrigation body. When the liquid is dripped, press the rubber head, and the gas generated by the rubber head will push the float to squeeze the solution in the anti-overflow tube, thereby allowing the liquid to be discharged from the disposable suction head.

[0014] (2) In order to facilitate quick replacement of disposable pipette tips, when the solution has not entered the anti-overflow tube, only the disposable pipette tip needs to be replaced. When removing the tube, use your finger to push the push block to the side of the push plate. The push block pushes the push plate through the push rod. The push plate uses its own end face to push the disposable pipette tip away from the anti-overflow tube, thereby pushing the disposable pipette tip down to complete the quick replacement function. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a dropper device for laboratory use proposed in this utility model;

[0016] Figure 2 This is a structural diagram of the push rod and spring of a dropper device for laboratory use proposed in this utility model.

[0017] Figure 3 This is a structural diagram of the conical block and float of a dropper device for laboratory use proposed in this utility model.

[0018] Figure 4This is a schematic diagram of the push block and push plate of a dropper device for laboratory use proposed in this utility model.

[0019] In the diagram: 1. Drip irrigation main body; 2. Overflow prevention device; 3. Tube retraction device; 4. Mounting head; 5. Rubber head; 6. Disposable suction head; 20. Overflow prevention tube; 21. Overflow outlet; 22. Conical block; 23. Float ball; 24. Stop block; 25. Through groove; 30. External fixing sleeve; 31. Sliding groove; 32. Push rod; 33. Spring; 34. Push block; 35. Push plate. Detailed Implementation

[0020] 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.

[0021] Example 1: Please refer to Figure 1-4 This utility model provides a technical solution: a drip device for laboratory use, including a drip body 1; in order to reduce the frequency of cleaning the device and facilitate quick replacement of disposable drips, a rubber head 5 is fixedly installed at one end of the drip body 1, and an installation head 4 is fixedly installed at the other end of the drip body 1 away from the rubber head 5. An anti-overflow device 2 is provided on the drip body 1, and a tube removal device 3 is provided on the installation head 4. The anti-overflow device 2 prevents the solution from entering the drip body 1, thereby reducing cleaning, and the tube removal device 3 quickly pushes away the disposable drip to achieve the function of quick tube removal and replacement.

[0022] To prevent liquid from overflowing into the drip irrigation unit 1, the overflow prevention device 2 includes an overflow prevention pipe 20, which is installed on the mounting head 4. A float 23 is installed inside the overflow prevention pipe 20. A conical block 22 is fixedly installed at one end of the overflow prevention pipe 20, and a stop block 24 is fixedly installed at the end of the overflow prevention pipe 20 away from the conical block 22. The float 23 is installed between the conical block 22 and the stop block 24. The mounting head 4 has external threads, and the end of the overflow prevention pipe 20 near the conical block 22 has internal threads. The overflow prevention pipe 20 is threadedly connected to the mounting head 4. An overflow port 21 is provided on the conical block 22. The maximum diameter of the overflow port 21 is smaller than the maximum outer diameter of the float 23. A through groove 25 is opened on the stop block 24. A disposable suction tip 6 is fitted onto the overflow tube 20. The disposable suction tip 6 communicates with the inside of the overflow tube 20 through the through groove 25. In use, first screw the overflow tube 20 onto the mounting head 4 and tighten it. Then insert the disposable suction tip 6 into the overflow tube 20 to begin drawing liquid. Press down the rubber head 5; the rubber head 5 will expel internal gas through the mounting head 4. At this time, place the tip of the disposable suction tip 6 into the solution and slowly release the rubber head 5. The rubber head 5 is an elastic colloid. Releasing the rubber head 5... The nozzle 5 then begins to deform and revert to its original shape. As it expands, it creates a negative pressure inside. This negative pressure is transmitted through the drip irrigation body 1 to the disposable suction head 6. The disposable suction head 6 then draws in the liquid due to the resulting negative pressure. When the liquid overflows from the disposable suction head 6 and enters the overflow prevention tube 20, the float 23 inside the overflow prevention tube 20 rises under the buoyancy of the liquid. As more liquid is drawn in, the float 23 gradually rises until it blocks the overflow prevention outlet 21, preventing further liquid from being drawn in. This prevents excessive liquid from entering the drip irrigation body 1 and causing the dripping liquid to leak out. When the body is in use, press the rubber head 5. The gas generated by the rubber head 5 pushes the float 23. The float 23 squeezes the solution in the anti-overflow tube 20, thereby causing the liquid to be discharged from the disposable suction head 6. The installation of the anti-overflow tube 20 can prevent the solution from entering the drip irrigation body 1 when it is being drawn. Each time a different solution is drawn, if it is easy to enter the anti-overflow tube 20, simply replace the disposable suction head 6. If the anti-overflow device 2 is triggered, causing the solution to enter the anti-overflow tube 20, simply replace the anti-overflow tube 20 and the disposable suction head 6. The anti-overflow tube 20 is connected to the installation head 4 by threads, making replacement convenient and quick.

[0023] Example 2: Figure 1-2 and Figure 4To achieve rapid tube withdrawal, the tube withdrawal device 3 includes an outer fixing sleeve 30, which is fixedly fitted onto the outside of the drip irrigation body 1. A pusher 35 is installed on the side of the drip irrigation body 1 near the mounting head 4. A pusher 32 is fixedly installed on the pusher 35, and a pusher block 34 is fixedly installed on the pusher 32. A sliding groove 31 is opened on the outer fixing sleeve 30, and the pusher 32 is slidably installed in the sliding groove 31. A spring 33 is fixedly installed at one end of the sliding groove 31, and the other end of the spring 33 is fixedly connected to the end of the pusher 32 away from the pusher block 34. Each time a different solution is drawn, if the solution does not enter the anti-overflow tube 20, only the disposable suction head 6 needs to be replaced. If the anti-overflow device 2 is triggered, causing the solution to flow out, the solution will not be discharged. Once the solution enters the overflow prevention tube 20, simply replace the overflow prevention tube 20 and the disposable pipette tip 6. The overflow prevention tube 20 is connected to the installation head 4 via threads, making replacement convenient and quick. To facilitate quick replacement of the disposable pipette tip 6, if the solution has not entered the overflow prevention tube 20, only the disposable pipette tip 6 needs to be replaced. When removing the tube, place your thumb and forefinger on the push block 34 and push the push block 34 towards the push plate 35. The push block 34 pushes the push plate 35 through the push rod 32. The push plate 35 uses its own end face to push the disposable pipette tip 6 away from the overflow prevention tube 20, thereby pushing the disposable pipette tip 6 down to complete the quick tube removal and replacement function. The remaining features are the same as in Example 1.

[0024] The working principle is as follows: When using, first screw the overflow tube 20 onto the mounting head 4 and tighten it. Insert the disposable suction tip 6 into the overflow tube 20 to begin drawing liquid. Press down the rubber head 5; the rubber head 5 will expel internal gas through the mounting head 4. At this time, place the tip of the disposable suction tip 6 into the solution and slowly release the rubber head 5. The rubber head 5 is an elastic gel; after releasing the rubber head 5, it will begin to deform and return to its original shape. The expansion of the rubber head 5 during this process creates a negative pressure inside, which is ultimately transmitted through the drip irrigation body 1. When the liquid is drawn into the disposable suction tip 6, a negative pressure is generated inside the disposable suction tip 6, drawing in the liquid. When the liquid overflows from the disposable suction tip 6 and enters the overflow prevention tube 20, the float 23 inside the overflow prevention tube 20 rises under the buoyancy of the liquid. As the liquid is drawn in, the float 23 gradually rises until it blocks the overflow prevention outlet 21, preventing further liquid from being drawn in. This avoids excessive liquid intake that could cause the solution to enter the drip irrigation body 1. When the liquid is dripping, pressing the rubber head 5 causes the gas generated by the rubber head 5 to push the float 23. 3. The float 23 squeezes the solution in the anti-overflow tube 20, causing the liquid to be discharged from the disposable suction head 6. The installation of the anti-overflow tube 20 can prevent the solution from entering the drip irrigation body 1 when drawing out a different solution. If the solution does not enter the anti-overflow tube 20 when drawing out a different solution, only the disposable suction head 6 needs to be replaced. If the anti-overflow device 2 is triggered, causing the solution to enter the anti-overflow tube 20, both the anti-overflow tube 20 and the disposable suction head 6 need to be replaced. The anti-overflow tube 20 is connected to the installation head 4 by threads, making replacement convenient and quick. To facilitate quick replacement of the disposable suction head 6, when the solution has not entered the anti-overflow tube 20, only the disposable suction head 6 needs to be replaced. When removing the tube, place your thumb and forefinger on the push block 34 and push the push block 34 towards the push plate 35. The push block 34 pushes the push plate 35 through the push rod 32. The push plate 35 uses its end face to push the disposable suction head 6 away from the anti-overflow tube 20, thereby pushing the disposable suction head 6 down to complete the quick tube removal and replacement function.

[0025] 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 drip tube device for a clinical laboratory, comprising a drip irrigation body (1); characterized in that: The drip irrigation body (1) is fixedly installed with a rubber head (5) at one end, and an installation head (4) is fixedly installed at the end of the drip irrigation body (1) away from the rubber head (5). The drip irrigation body (1) is provided with an anti-overflow device (2), and the installation head (4) is provided with a tube retraction device (3). The overflow prevention device (2) includes an overflow prevention pipe (20), which is installed on the mounting head (4). A float (23) is installed inside the overflow prevention pipe (20). A conical block (22) is fixedly installed at one end of the overflow prevention pipe (20). A stop block (24) is fixedly installed at the end of the overflow prevention pipe (20) away from the conical block (22). The float (23) is installed between the conical block (22) and the stop block (24).

2. A dropper device for a clinical laboratory according to claim 1, characterized in that: The mounting head (4) has an external thread, and the anti-overflow tube (20) has an internal thread at one end near the conical block (22). The anti-overflow tube (20) is threadedly connected to the mounting head (4).

3. A dropper device for laboratory use according to claim 2, characterized in that: The conical block (22) has an overflow port (21), the maximum diameter of which is smaller than the maximum outer diameter of the float (23).

4. A dropper device for laboratory use according to claim 3, characterized in that: The stop block (24) has a through groove (25), and a disposable suction head (6) is sleeved on the anti-overflow tube (20). The disposable suction head (6) communicates with the inside of the anti-overflow tube (20) through the through groove (25).

5. A dropper device for laboratory use according to claim 1, characterized in that: The tube ejection device (3) includes an outer fixing sleeve (30), which is fixedly fitted on the outside of the drip irrigation body (1). A pusher (35) is installed on the side of the drip irrigation body (1) near the installation head (4). A push rod (32) is fixedly installed on the pusher (35), and a push block (34) is fixedly installed on the push rod (32).

6. A dropper device for laboratory use according to claim 5, characterized in that: The outer fixing sleeve (30) has a sliding groove (31), the push rod (32) is slidably installed in the sliding groove (31), a spring (33) is fixedly installed at one end of the sliding groove (31), and the other end of the spring (33) is fixedly connected to the end of the push rod (32) away from the push block (34).

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