Liquid adding and diluting device for clinical laboratory

Abstract

The utility model discloses a liquid adding and diluting device for a clinical laboratory, and particularly relates to the technical field of inspection and dilution, the liquid adding and diluting device comprises an L-shaped supporting base, and the top end of the supporting base in the vertical direction is fixedly connected with a plurality of filling pressure devices; the top end of the supporting base in the horizontal direction is provided with containing grooves with the same number as the filling pressure devices, filling fixing components are arranged in the containing grooves, and conveying fixing components are arranged between the filling fixing components and the filling pressure devices. According to the liquid adding and diluting device for the clinical laboratory, disclosed by the utility model, the upper side of the inner wall of a test tube can be quickly fixed through the matching of a fixing knob, a supporting plate and an expansion arc plate, so that some preparation steps of diluting work can be saved; in addition, after the test tube is taken out, the outer wall, the inner wall and other parts, making contact with diluted liquid, of the inner side conveying tube can be cleaned in a water injection mode, and the convenience of the device is improved while the self-cleaning capacity of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of test dilution, in particular to a liquid adding and diluting device for a laboratory. Background Art

[0002] The clinical laboratory is a crucial department within hospitals, conducting a variety of testing tasks. Using a variety of scientific techniques and methods, it analyzes and tests samples such as blood, urine, cerebrospinal fluid, pleural effusion, and ascites, providing crucial evidence for clinical diagnosis, treatment, and disease prevention. Liquid dosing and dilution devices are essential tools in clinical laboratory work, ensuring that the concentration of test fluids falls within the optimal detection range of the testing instruments, thereby improving test accuracy and reliability.

[0003] Chinese patent document CN219224335U discloses a liquid adding and diluting device for medical laboratory, comprising a rectangular frame, the inner bottom of which is fixedly connected to a storage table, a lifting plate provided inside the rectangular frame, a driving mechanism provided at the upper end of the lifting plate, a guide mechanism provided inside the lifting plate, a servo motor fixedly connected to the upper end of the output shaft of the servo motor, a stirring shaft fixedly connected to the lower end of the stirring shaft passing through the lifting plate and fixedly connected to a stirring blade, a bearing fixedly sleeved on the stirring shaft, a connecting disk fixedly sleeved on the bearing, and a sealing mechanism provided at the lower end of the connecting disk.

[0004] Although the above-mentioned device can stir the sample liquid in the container, since the device itself has only one stirring and mixing chamber, the above-mentioned device can only perform a single dilution operation. When faced with multiple dilution operations, it cannot work simultaneously, resulting in a slow dilution and stirring speed, reducing the efficiency of dilution and stirring. In addition, the above-mentioned device needs to be cleaned when changing different liquids for the dilution operation, which greatly increases the preparation work before dilution and further reduces the efficiency of dilution. Utility Model Content

[0005] The purpose of the utility model is to provide a liquid adding and diluting device for laboratory use, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a liquid adding and dilution device for a laboratory, comprising a support base, the support base is L-shaped, and a plurality of filling pressure devices are fixedly connected to the top end of the support base in the vertical direction, and the top end of the support base in the horizontal direction is provided with placement grooves with the same number as the filling pressure devices, and a filling fixing component is provided in the placement groove, and a conveying fixing component is provided between the filling fixing component and the filling pressure device, and the filling pressure device includes a filling water tank, and a pressurized gas tank is provided on the right side of the filling water tank, and the pressurized gas tank and the bottom end of the filling water tank are both fixedly connected to the top end of the support base in the vertical direction.

[0007] Preferably, the filling and fixing component includes a test tube, the bottom of the test tube can be placed in the placement groove, the top of the test tube is provided with a fixing component, the front end of the fixing component is fixedly connected to a support beam, the end of the support beam away from the fixing component is fixedly connected to the vertical rear side of the support base, and the fixing component is rotatably connected to a rotating component up and down.

[0008] The top end of the support leg is fixedly provided with a toothed connecting strip which is cooperatively connected with the toothed connecting strip, and the bottom end of the support leg is connected with the toothed connecting strip to form a solid block.

[0009] Preferably, the curvature of the expansion arc plate is the same as the inner wall of the test tube, the diameter of the rotating port is the same as the inner diameter of the test tube, the two guide edges are combined into a circular shape, and one side of the top end of the guide edge is set as an inclined surface extending to the support seat.

[0010] Preferably, the rotating assembly includes a rotating disk, the outer surface of which is rotatably connected to the inner wall of the rotating mouth, an outer delivery tube is fixedly connected through the middle of the rotating disk, an inner delivery tube is arranged inside the outer delivery tube, the bottom end of the inner delivery tube extends to the bottom end of the test tube, and the outer delivery tube extends between two support plates, the inner delivery tube and the top end of the outer delivery tube are in the same plane and are fixedly connected to a synchronous spacer plate in the middle.

[0011] Preferably, the conveying fixed component includes two filling pipes, the front ends of the two filling pipes are fixedly connected to the rear ends of the filling water tank and the pressurized gas tank respectively, the rear ends of the filling pipes are inclined close to the center of the rotating disk, and the rear ends of the filling pipes are provided with fixed limiting components.

[0012] Preferably, the filling pipe includes a filling main pipe, the inner diameter of the filling main pipe is equal to the outer diameter of the outer delivery pipe, and a retraction groove is provided on the outer surface of the filling main pipe close to the filling fixed component, and movable grooves are provided on the upper and lower sides of the retraction groove.

[0013] Preferably, the fixed limit assembly includes an opening and closing plate, the upper and lower sides of the opening and closing plate slide in the retraction groove through a movable groove, the front end of the opening and closing plate is fixedly connected to a support spring, the front end of the support spring is fixedly connected to the front end of the inner side of the retraction groove, the side of the opening and closing plate away from the retraction groove is fixedly connected to a movable opening and closing ring, the inner wall of the movable opening and closing ring is slidably connected to the outer surface of the filling main pipe, the rear end of the opening and closing plate is fixedly connected to the limit plate, the inner diameter of the limit plate is the same as the filling main pipe, and the inner diameter of the retraction groove is larger than the limit plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model can fix the test tube through the fixing assembly and complete the filling and dilution work through the rotating assembly. The small volume of the rotating assembly and the test tube can enable the support base to be equipped with multiple test tubes at the same time to dilute a variety of different liquids at the same time, thereby improving the efficiency of the dilution work. In addition, the upper side of the inner wall of the test tube can be quickly fixed by the cooperation of the fixing knob with the support plate and the expansion arc plate, which can save some preparatory steps for the dilution work, improve the dilution effect of the device, and improve the convenience of the device.

[0016] 2. The utility model can complete the dilution work through the cooperation of the rotating component and the conveying fixed component. When filling is needed, the outer conveying pipe and the inner conveying pipe can be driven to rotate to the filling pipe connected to the water filling tank for filling by rotating the rotating disk, and then rotated to the filling pipe connected to the pressurized gas tank to pressurize the gas into the test tube, and the gas is used to complete the stirring and mixing of the liquid inside the test tube. After the test tube is taken out, water can be injected to make water flow out from the outer conveying pipe and the inner conveying pipe at the same time, and the outer wall and inner wall of the inner conveying pipe and other parts in contact with the diluted liquid are cleaned, which is convenient for the next dilution work, improving the self-cleaning ability of the device and increasing the convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the filling and fixing components of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the fixing assembly of the utility model;

[0020] Figure 4 This is a schematic diagram of the local structure of the fixing component of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the conveying and fixing components of the utility model;

[0022] Figure 6 This is a structural diagram of the fixed limiting component of the utility model.

[0023] In the figure: 1. Filling pressure device; 11. Filling water tank; 12. Pressurized gas tank; 2. Support base; 3. Delivery fixed component; 31. Filling pipe; 32. Fixed limit assembly; 321. Support spring; 322. Opening and closing plate; 323. Moving opening and closing ring; 324. Limit plate; 311. Filling main pipe; 312. Retracting groove; 313. Moving groove; 4. Filling fixed component; 41. Rotating assembly; 411. Outer delivery pipe; 412. Rotating disk; 413. Inner delivery pipe; 42. Support beam; 43. Fixed assembly; 431. Support seat; 432. Fixed guide column; 433. Return spring; 434. Support plate; 435. Expansion arc plate; 436. Guide edge; 437. Rotating block; 438. Fixed knob; 44. Test tube. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1 The utility model provides a technical solution for a liquid adding and dilution device for a laboratory: a liquid adding and dilution device for a laboratory, comprising a support base 2, which is L-shaped and provides stable support for the entire device. A number of filling pressure devices 1 are fixedly connected to the top of the support base 2 in the vertical direction, and a placement groove is provided on the top of the support base 2 in the horizontal direction, the same number as the filling pressure device 1, and a filling fixing component 4 is provided in the placement groove. A conveying fixing component 3 is provided between the filling fixing component 4 and the filling pressure device 1, which can fill the water required for dilution into the container. The filling pressure device 1 comprises a filling water tank 11, and a pressurized gas tank 12 is provided on the right side of the filling water tank 11. The pressurized gas tank 12 and the bottom end of the filling water tank 11 are both fixedly connected to the top end of the support base 2 in the vertical direction. The filling water tank 11 is used to store water for dilution, and the pressurized gas tank 12 is used to provide pressure to output the gas that is insoluble in the liquid inside.

[0026] The water filling tank 11 and the pressurized gas tank 12 can output the water added to the liquid and the gas that is not easily soluble in the liquid, such as helium, from the outside through the conveying fixed component 3 in a pressurized manner. This is the existing technology and will not be explained here.

[0027] See also Figure 2The filling and fixing component 4 includes a test tube 44. The bottom of the test tube 44 can be placed in the placement groove to achieve preliminary fixation and positioning of the test tube 44. A fixing component 43 is provided at the top of the test tube 44. The main function of the fixing component 43 is to further fix the test tube 44 so that it remains stable during the liquid addition and dilution process without shaking or shifting. The front end of the fixing component 43 is fixedly connected to a support beam 42, and the end of the support beam 42 away from the fixing component 43 is fixedly connected to the vertical rear side of the support base 2 to ensure the stability of the fixing component 43. The fixing component 43 is rotatably connected to the rotating component 41 up and down.

[0028] See also Figure 3 The rotating assembly 41 includes a rotating disk 412, the outer surface of the rotating disk 412 is rotatably connected to the rotating inner wall, and the rotating disk 412 can rotate flexibly in the selection port. The middle of the rotating disk 412 is fixedly connected with an outer delivery pipe 411, and an inner delivery pipe 413 is arranged inside the outer delivery pipe 411. The bottom end of the inner delivery pipe 413 extends to the bottom end of the test tube 44, which can ensure that the gas can be delivered to the bottom of the test tube 44. The liquid is mixed by the movement of the gas in the liquid, so that the water in the outer delivery pipe 411 will flow through the outer wall of the inner delivery pipe 413 when filling. The outer delivery pipe 411 extends between the two support plates 434, and the top of the inner delivery pipe 413 and the outer delivery pipe 411 are in the same plane and are fixedly connected to a synchronous spacer in the middle. The spacer ensures that the inner delivery pipe 413 and the outer delivery pipe 411 can keep synchronized when rotating and delivering liquid, and also plays the role of spacing and support, making the structure of the two delivery pipes more stable.

[0029] See also Figure 3 and Figure 4 The fixing assembly 43 includes a support seat 431, which is provided with a rotating opening running through the upper and lower parts. The middle part of the left and right sides of the support seat 431 passes through and is slidably connected to a fixed guide post 432. The fixed guide post 432 is fixedly connected to a support plate 434 at one end of the rotating opening. The support plate 434 is fixedly connected to an expansion arc plate 435 on the side away from the middle of the rotating opening. A return spring 433 is provided on the outer surface of the fixed guide post 432 at the rotating opening. One end of the return spring 433 is fixedly connected to the support plate 434. The end of the return spring 433 away from the support plate 434 is fixedly connected to the inner side of the rotating opening. The end of the fixed guide post 432 away from the support plate 434 is rotatably connected to a rotating block 437. The end of the rotating block 437 away from the fixed guide post 432 is fixedly connected to a fixed knob 438. The rotating block 437 is provided with guide grooves on the left and right sides of the end close to the fixed guide post 432. A guide rib 436 is provided in the guide groove. The end of the guide rib 436 away from the guide groove is fixedly connected to the outer side of the support seat 431.

[0030] The support seat 431 plays the role of supporting and fixing other components. It can slide in the support seat 431 to drive the support plate 434 and the expansion arc plate 435 to form a structure for fixing the test tube 44. By moving outward, the expansion arc plate 435 is tightly attached to the inner wall of the test tube 44 to fix the test tube 44. The fixing knob 438 is used to control the movement of the support plate 434 and the expansion arc plate 435. When the fixing knob 438 is rotated, the rotating block 437 rotates accordingly. Due to the restriction of the guide edge 436, the rotating block 437 can only move along the guide edge 436 and be lifted up by the guide edge 436, driving the fixed guide column 432 to slide, thereby driving and controlling the support plate 434 and the expansion arc plate 435.

[0031] See also Figure 3 and Figure 4 The curvature of the expansion arc plate 435 is the same as the inner wall of the test tube 44, the diameter of the rotating mouth is the same as the inner diameter of the test tube 44, the two guide ribs 436 are combined into a circular shape, and one side of the top of the guide rib 436 is set to be an inclined surface extending to the support seat 431. The circular combination of the guide ribs 436 can enable the rotating block 437 to always be in contact with the guide ribs 436 during rotation. The inclined surface of the guide rib 436 can lift the rotating block 437 from the support seat 431, thereby driving the fixed guide column 432.

[0032] See also Figure 5 The conveying fixed component 3 includes two filling pipes 31, the front ends of the two filling pipes 31 are fixedly connected to the rear ends of the filling water tank 11 and the pressurized gas tank 12 respectively, and the liquid in the filling water tank 11 and the gas in the pressurized gas tank 12 can be conveyed through the filling pipes 31, and the rear ends of the filling pipes 31 are tilted close to the center of the rotating disk 412. When the rotating disk 412 rotates, the delivery pipes can be more accurately aligned with the filling pipes 31 to ensure that the liquid or gas can smoothly enter the delivery pipes from the filling pipes 31. A fixed limiting component 32 is provided at the rear end of the filling pipe 31. When the delivery pipe is aligned with the filling pipe 31 for liquid or gas delivery, the fixed limiting component 32 can ensure that the connection between the delivery pipe and the filling pipe 31 is stable to prevent leakage or falling off.

[0033] See also Figure 6 The filling pipe 31 includes a filling main pipe 311, which is the main part of the filling pipe 311 and is used to transport liquid or gas. The inner diameter of the filling main pipe 311 is equal to the outer diameter of the outer delivery pipe 411, so that the outer delivery pipe 411 can enter the filling main pipe 311 through the fixed limiting component 32 to achieve a close connection between the two. An indentation groove 312 is provided on the outer surface of the filling main pipe 311 close to the filling fixed component 4, and movable grooves 313 are provided on the upper and lower sides of the indentation groove 312. The movable groove 313 and the indentation groove 312 are used in conjunction with the fixed limiting component 32 to provide space for the fixed limiting component 32 to move.

[0034] See also Figure 6 The fixed limit assembly 32 includes an opening and closing plate 322, the upper and lower sides of the opening and closing plate 322 slide in the retraction groove 312 through the movable groove 313, the front end of the opening and closing plate 322 is fixedly connected to a support spring 321, the front end of the support spring 321 is fixedly connected to the front end of the inner side of the retraction groove 312, the side of the opening and closing plate 322 away from the retraction groove 312 is fixedly connected to a movable opening and closing ring 323, the inner wall of the movable opening and closing ring 323 is slidably connected to the outer surface of the filling main pipe 311, and the rear end of the opening and closing plate 322 is fixedly connected to the limiting plate 324, the inner diameter of the limiting plate 324 is the same as that of the filling main pipe 311, and the inner diameter of the retraction groove 312 is larger than the limiting plate 324.

[0035] When the cam 323 is in the closed position, the cam 324 is in the closed position and the cam 325 is in the closed position, so that the cam 323 is in the closed position and the cam 325 is in the closed position.

[0036] Working principle:

[0037] First, the mouth of the test tube 44 is placed on the outside of the two expansion arc plates 435, and then the fixing knob 438 is rotated to make the rotating block 437 drive the fixed guide column 432 through the guidance of the guide edge 436 during rotation to control the expansion arc plate 435 to fix the test tube 44, and then the outer delivery tube 411 is rotated so that the top end of the outer delivery tube 411 enters the filling tube 31 on the side of the filling water tank 11, and then the filling water tank 11 is controlled to allow water to enter the inside of the test tube 44 and merge with the liquid to be diluted inside. After the required amount of water is added, the water injection is stopped, and the fixation of the outer delivery tube 411 is released by pushing the movable opening and closing ring 323, and then the outer delivery tube 411 is rotated. The side delivery pipe 411 is connected to the filling pipe 31 on the other side. By starting the pressurized gas tank 12, the gas is output from the bottom of the test tube 44 through the inner delivery pipe 413. Since gases such as helium are not easily soluble in water, bubbles will form when the gas is output, stirring the liquid in the test tube 44. After the stirring is completed, the test tube 44 is released by the fixing knob 438 and the test tube 44 is taken out. Then the outer delivery pipe 411 is connected to the filling pipe 31 with the water injection function. After the water injection is turned on, water flows out of the outer delivery pipe 411 and the inner delivery pipe 413 together, and the inside and outside of the inner delivery pipe 413 are cleaned to keep itself clean.

[0038] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid adding and diluting device for a laboratory, comprising a supporting base (2), characterized in that: The support base (2) is L-shaped, and a plurality of filling pressure devices (1) are fixedly connected to the top of the support base (2) in the vertical direction. The top of the support base (2) in the horizontal direction is provided with placement slots having the same number as the filling pressure devices (1). A filling fixing component (4) is provided in the placement slots, and a conveying fixing component (3) is provided between the filling fixing component (4) and the filling pressure device (1). The filling pressure device (1) includes a filling water tank (11), and a pressurized gas tank (12) is provided on the right side of the filling water tank (11). The bottom ends of the pressurized gas tank (12) and the filling water tank (11) are both fixedly connected to the top of the support base (2) in the vertical direction.

2. A liquid adding and diluting device for clinical laboratory use according to claim 1, characterized in that: The filling fixing component (4) includes a test tube (44), the bottom of the test tube (44) can be placed in the placement groove, the top of the test tube (44) is provided with a fixing component (43), the front end of the fixing component (43) is fixedly connected to a support beam (42), one end of the support beam (42) away from the fixing component (43) is fixedly connected to the vertical rear side of the support base (2), and the fixing component (43) is rotatably connected to a rotating component (41) through which it passes up and down.

3. The liquid adding and diluting device for clinical laboratory use according to claim 2, characterized in that: The fixing assembly (43) includes a support seat (431), the support seat (431) is provided with a rotating opening extending upward and downward, the middle of the left and right sides of the support seat (431) are penetrated and slidably connected with a fixed guide post (432), one end of the fixed guide post (432) located at the rotating opening is fixedly connected to a support plate (434), the side of the support plate (434) away from the middle of the rotating opening is fixedly connected to an expansion arc plate (435), the outer surface of the fixed guide post (432) located at the rotating opening is provided with a return spring (433), one end of the return spring (433) is fixedly connected to the support plate (434), and the expansion arc plate (435) is fixedly connected to the expansion arc plate (435). 4), one end of the return spring (433) away from the support plate (434) is fixedly connected to the inner side of the rotating mouth, one end of the fixed guide column (432) away from the support plate (434) is rotatably connected to a rotating block (437), one end of the rotating block (437) away from the fixed guide column (432) is fixedly connected to a fixed knob (438), and guide grooves are provided on the left and right sides of the end of the rotating block (437) close to the fixed guide column (432), and a guide rib (436) is provided in the guide groove, and the end of the guide rib (436) away from the guide groove is fixedly connected to the outer side of the support seat (431).

4. The liquid adding and diluting device for clinical laboratory use according to claim 3, characterized in that: The arc of the expansion arc plate (435) is the same as the inner wall of the test tube (44), the diameter of the rotating port is the same as the inner diameter of the test tube (44), the two guide edges (436) are combined to form a circle, and one side of the top end of the guide edge (436) is set as an inclined surface extending to the support seat (431).

5. The liquid adding and diluting device for clinical laboratory use according to claim 3, characterized in that: The rotating assembly (41) includes a rotating disk (412), the outer surface of which is rotatably connected to the inner wall of the rotating port, an outer delivery tube (411) is fixedly connected to the middle of the rotating disk (412), an inner delivery tube (413) is provided inside the outer delivery tube (411), the bottom end of the inner delivery tube (413) extends to the bottom end of the test tube (44), and the outer delivery tube (411) extends between two support plates (434), the top ends of the inner delivery tube (413) and the outer delivery tube (411) are in the same plane, and a synchronous spacer is fixedly connected to the middle of the inner delivery tube (413).

6. The liquid adding and diluting device for clinical laboratory use according to claim 5, characterized in that: The transport fixing component (3) comprises two filling pipes (31), the front ends of the two filling pipes (31) being fixedly connected to the rear ends of the filling water tank (11) and the pressurized gas tank (12), respectively. The rear ends of the filling pipes (31) are both inclined close to the center of the rotating disk (412), and the rear ends of the filling pipes (31) are provided with a fixed limiting assembly (32).

7. The liquid adding and diluting device for clinical laboratory use according to claim 6, characterized in that: The filling pipe (31) includes a filling main pipe (311), the inner diameter of the filling main pipe (311) is equal to the outer diameter of the outer delivery pipe (411), a retraction groove (312) is provided on the outer surface of the filling main pipe (311) near the filling fixed component (4), and movable grooves (313) are provided on the upper and lower sides of the retraction groove (312).

8. The liquid adding and diluting device for clinical laboratory use according to claim 7, characterized in that: The fixed limiting assembly (32) includes an opening and closing plate (322), the upper and lower sides of the opening and closing plate (322) slide in the retraction groove (312) through the movable groove (313), the front end of the opening and closing plate (322) is fixedly connected to a support spring (321), the front end of the support spring (321) is fixedly connected to the front end of the inner side of the retraction groove (312), the side of the opening and closing plate (322) away from the retraction groove (312) is fixedly connected to a movable opening and closing ring (323), the inner wall of the movable opening and closing ring (323) is slidably connected to the outer surface of the filling main pipe (311), the rear end of the opening and closing plate (322) is fixedly connected to a limiting plate (324), the inner diameter of the limiting plate (324) is the same as that of the filling main pipe (311), and the inner diameter of the retraction groove (312) is larger than that of the limiting plate (324).

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