A liquid dispensing device for media preparation

Abstract

This utility model discloses a liquid dispensing device for culture medium preparation, including a mounting plate with mounting holes inside. A dispensing bottle is placed on top of the mounting plate, and a processing component is also placed on top of the mounting plate. A stabilizing component constitutes one part of the processing component. When it is necessary to stably place the dispensing bottle for liquid dispensing, the dispensing bottle is placed on the top surface of the placement platform and positioned between the clamping frames. At this time, rotating the opposing threaded rod causes the two sleeve blocks to move in opposite directions due to the sliding arrangement of the sleeve blocks with the groove on the top surface of the placement platform. This causes the sleeve blocks to move the push plate, and the clamping frame fixedly installed on the outer wall of the push plate moves accordingly. The clamping frame clamps the outer wall of the dispensing bottle through the rubber rod. When the rubber rod is squeezed, it causes the second magnetic block to slide into the groove. Due to the magnetic repulsion between the first and second magnetic blocks, the rubber rod is tightly contacted with the outer wall of the dispensing bottle.

Description

Technical Field

[0001] This utility model relates to the field of liquid dispensing technology for culture medium preparation, specifically to a liquid dispensing device for culture medium preparation. Background Technology

[0002] A liquid dispensing device for culture medium preparation is a device used to dispense liquid culture medium into different containers (such as petri dishes, test tubes, etc.) according to a predetermined volume or weight. This device usually has high-precision dispensing capabilities, which can ensure that the amount of culture medium in each container is uniform, thereby improving the accuracy and reproducibility of experiments.

[0003] As disclosed in Chinese Patent CN211111018U, a liquid dispensing device for culture medium preparation uses a servo motor to rotate in both directions, driving gears to rotate in both directions. This causes a rack to drive a piston rod to move up and down repeatedly, pushing a piston push plate to move up and down. When the piston push plate moves upward, the rubber pad at the upper end of the piston push plate fits against the surface of the piston push plate, sealing the through hole on the piston push plate. Air is drawn into the dispensing box through the suction pipe at the lower end of the piston chamber. When the piston push plate moves downward, the rubber pad flips up, air is introduced upward through the through hole on the piston push plate, and the air at the lower end of the piston push plate flows upward through the through hole and is discharged from the piston chamber through the air outlet pipe. This cycle repeats, thereby achieving the purpose of vacuuming the dispensing box. The suction mechanism continuously reduces the air pressure inside the dispensing box. Due to the pressure difference, the liquid in the culture medium enters the dispensing box through the suction pipe. The flow valve value range is controlled by the control panel to control the specific content of liquid dispensed into the dispensing bottle through the dispensing pipe, precisely controlling the volume of the dispensed liquid.

[0004] While this structure allows for precise liquid dispensing, it is inconvenient to stably position the dispensing bottles, causing them to tip over when the dispensing device is shaken. Therefore, we propose a liquid dispensing device for culture medium preparation that can stably position the dispensing bottles to improve dispensing stability. Utility Model Content

[0005] The purpose of this invention is to provide a liquid dispensing device for preparing culture media, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a liquid dispensing device for preparing culture medium, comprising a mounting plate, wherein the mounting plate has mounting holes inside, a dispensing bottle is disposed above the mounting plate, and a processing component is disposed above the mounting plate, wherein the processing component includes a stabilizing component disposed above the mounting plate, and a limiting component is disposed below the stabilizing component.

[0007] Preferably, the stabilizing component includes a placement platform slidably disposed above the mounting plate. An opposing threaded rod is rotatably connected inside the placement platform. A sleeve block is fitted on the outer wall of the opposing threaded rod. A push plate is fixedly installed on the outer wall of the sleeve block. A clamping frame is fixedly installed on the outer wall of the push plate. A sliding groove is formed on the inner side of the clamping frame. A first magnetic block is fixedly installed on the inner wall of the sliding groove. A second magnetic block is slidably disposed inside the sliding groove. A rubber rod is fixedly installed on the side wall of the second magnetic block.

[0008] Preferably, the limiting component includes a limiting groove formed at the bottom of the placement platform, a limiting strip slidably disposed inside the limiting groove, a fixing block fixedly disposed on the top surface of the mounting plate, a first magnetic plate fixedly disposed on the side wall of the fixing block, a sliding rod fixedly disposed inside the first magnetic plate, a limiting block slidably disposed on the outer wall of the sliding rod, and a second magnetic plate fixedly disposed on the side wall of the limiting block.

[0009] Preferably, the rubber rod is made of rubber. The first and second magnetic blocks repel each other magnetically. Under the restriction of magnetic repulsion, the rubber rod can be pushed to clamp the outer wall of the dispensing bottle.

[0010] Preferably, the clamping frame is arc-shaped, and the side wall of the clamping frame is slidably disposed with the top surface of the placement platform. Under the constraint of the arc-shaped clamping frame, the contact area between the clamping frame and the outer wall of the dispensing bottle can be increased, thereby improving the clamping stability.

[0011] Preferably, the outer wall of the sleeve block is slidably disposed with the groove opened on the top surface of the placement platform, and the sleeve block is threadedly sleeved with the outer wall of the opposing threaded rod. Under its constraint, the rotating opposing threaded rod can drive the two sleeve blocks to move.

[0012] Preferably, there are two placement platforms, which are distributed in parallel on the top surface of the mounting plate. With the restriction of alternating use of the two placement platforms, the liquid dispensing efficiency can be improved.

[0013] Preferably, the outer wall of the limiting block is arc-shaped, and the limiting block is slidably disposed with the top surface of the mounting plate. Under its restriction, when the outer wall of the placement platform is pressed against the arc surface of the limiting block, the limiting block can slide smoothly.

[0014] Preferably, the second magnetic plate and the first magnetic plate are magnetically repelled, and the second magnetic plate is slidably disposed with the slide rod. Under the restriction of magnetic repulsion, the second magnetic plate pushes the limiting block that is not squeezed, so that the limiting block restricts the placement platform.

[0015] Preferably, there are two limiting blocks, symmetrically distributed around the center line of the top surface of the mounting plate. Under the restriction of the limiting blocks, the placement platform can be restricted, so that the dispensing bottles can be dispensed stably.

[0016] Compared with the prior art, the beneficial effects of this utility model are: 1. The liquid dispensing device for culture medium preparation comprises a stabilizing component. When it is necessary to stably place the dispensing bottle for liquid dispensing, the dispensing bottle is placed on the top surface of the placement platform and positioned between the clamping frames. At this time, rotating the opposing threaded rod causes the two sleeve blocks to move in opposite directions due to the sliding arrangement of the sleeve blocks with the groove opened on the top surface of the placement platform. This causes the sleeve blocks to move the push plate accordingly, and the clamping frame fixedly installed on the outer wall of the push plate moves accordingly. The clamping frame moves along with the outer wall of the dispensing bottle via the rubber rod. The clamping mechanism, when the rubber rod is squeezed, causes the second magnetic block to slide into the groove. Due to the magnetic repulsion between the first and second magnetic blocks, the rubber rod is tightly pressed against the outer wall of the dispensing bottle under its constraint. This constraint prevents damage to the outer wall of the dispensing bottle. This structure can stably clamp the dispensing bottle and prevent damage to the outer wall of the dispensing bottle under the constraint of the rubber rod. (The vacuuming mechanism, dispensing mechanism, and dispensing bottle are existing disclosed technologies in the prior art, and therefore their structures are not fully described in this case.)

[0017] 2. The liquid dispensing device for culture medium preparation comprises a limiting component. When liquid needs to be dispensed through dispensing bottles, it is clamped above the placement platform and pushed below the dispensing mechanism to connect with the dispensing tube. At this time, an undispensed dispensing bottle is clamped above another placement platform. After the dispensing of the bottle above the first placement platform is completed, the placement platform is pushed so that it slides on the outer wall of the limiting strip. The outer wall of the placement platform contacts and presses against the arc surface of the outer wall of the limiting block, causing the limiting block to drive the second magnetic plate to slide towards the first magnetic plate. The limiting block slides on the outer wall of the sliding rod. When another undispensed dispensing bottle is placed below the dispensing mechanism, the limiting block is not compressed. Under the magnetic repulsion between the second and first magnetic plates, the limiting block is pushed so that it engages with the outer wall of the placement platform. This structure can improve dispensing efficiency by alternating dispensing through two placement platforms. Under the limitation of the limiting block, misalignment between the dispensing bottle and the dispensing tube can be avoided. Attached Figure Description

[0018] Figure 1 This is a three-dimensional view of the structure of this utility model.

[0019] Figure 2 This is a three-dimensional cross-sectional view of the structure of this utility model.

[0020] Figure 3 This is a diagram of the structural stabilization component of this utility model.

[0021] Figure 4 This is an exploded view of the structural stabilization component of this utility model.

[0022] Figure 5 This is a structural constraint component diagram of the present invention.

[0023] Figure 6 This is an exploded view of the structural limiting component of this utility model.

[0024] In the diagram: 1. Mounting plate; 2. Mounting hole; 3. Dispensing bottle; 4. Processing component; 41. Stabilizing component; 42. Restricting component; 411. Opposing threaded rod; 412. Sleeve block; 413. Push plate; 414. Clamping frame; 415. Slide groove; 416. First magnetic block; 417. Second magnetic block; 418. Glue rod; 419. Placement platform; 421. Limiting groove; 422. Limiting strip; 423. Fixing block; 424. First magnetic plate; 425. Slide rod; 426. Limiting block; 427. Second magnetic plate. Detailed Implementation

[0025] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0026] Example 1: A preferred embodiment of the liquid dispensing device for culture medium preparation provided by this utility model is as follows: Figures 1 to 6 As shown: A liquid dispensing device for preparing culture medium, including a mounting plate 1; Mounting plate 1 has mounting holes 2 inside; A dispensing bottle 3 is provided above the mounting plate 1; The processing component 4 is disposed above the mounting plate 1. The processing component 4 includes a stabilizing component 41 disposed above the mounting plate 1. The stabilizing component 41 includes a placement platform 419 slidably disposed above the mounting plate 1. A counter-threaded rod 411 is rotatably connected inside the placement platform 419. A sleeve block 412 is sleeved on the outer wall of the counter-threaded rod 411. A push plate 413 is fixedly installed on the outer wall of the sleeve block 412. A clamping frame 414 is fixedly installed on the outer wall of the push plate 413. A sliding groove 415 is opened on the inner side of the clamping frame 414. A first magnetic block 416 is fixedly installed on the inner wall of the sliding groove 415. A second magnetic block 417 is slidably disposed inside the sliding groove 415. A rubber rod 418 is fixedly installed on the side wall of the second magnetic block 417.

[0027] In this embodiment, when it is necessary to stably place the dispensing bottle 3 for dispensing liquid, the dispensing bottle 3 is placed on the top surface of the placement platform 419 and between the clamping frames 414. At this time, the opposing threaded rod 411 is rotated. Due to the sliding arrangement of the sleeve block 412 and the groove opened on the top surface of the placement platform 419, under its constraint, the rotating opposing threaded rod 411 can drive the two sleeve blocks 412 to move in opposite directions, so that the sleeve blocks 412 drive the push plate 413 to move accordingly. The clamping frame 414 fixedly installed on the outer wall of the push plate 413 moves accordingly and clamps the outer wall of the dispensing bottle 3 through the rubber rod 418. When the rubber rod When 418 is squeezed, it drives the second magnetic block 417 to slide into the groove 415. Since the first magnetic block 416 and the second magnetic block 417 are magnetically repelled, under their restriction, the rubber rod 418 is in close contact with the outer wall of the dispensing bottle 3. Under the restriction of the rubber rod 418, damage to the outer wall of the dispensing bottle 3 can be avoided. This structure can stably clamp the dispensing bottle 3. Under the restriction of the rubber rod 418, damage to the outer wall of the dispensing bottle 3 can be avoided. (The air extraction mechanism, liquid dispensing mechanism, and dispensing bottle 3 are existing disclosed technologies in the prior art, so their structures are not fully described in this case.)

[0028] The rubber rod 418 is made of rubber. The first magnetic block 416 and the second magnetic block 417 are magnetically repulsive. Under the restriction of magnetic repulsion, the rubber rod 418 can be pushed so that the rubber rod 418 clamps the outer wall of the dispensing bottle 3.

[0029] The clamping frame 414 is arc-shaped, and its side wall is slidably disposed with the top surface of the placement platform 419. Under the constraint of the arc-shaped clamping frame 414, its contact area with the outer wall of the dispensing bottle 3 can be increased, thereby improving the clamping stability.

[0030] The outer wall of the sleeve 412 is slidably connected to the groove on the top surface of the placement platform 419. The sleeve 412 is threadedly fitted onto the outer wall of the opposing threaded rod 411. Under its constraint, the rotating opposing threaded rod 411 can drive the two sleeves 412 to move.

[0031] There are two placement platforms 419, which are distributed in parallel on the top surface of the mounting plate 1. With the restriction of alternating use of the two placement platforms 419, the liquid dispensing efficiency can be improved.

[0032] Example 2: Based on Example 1, a preferred embodiment of the liquid dispensing device for culture medium preparation provided by this utility model is as follows: Figures 1 to 6 As shown: The limiting component 42 includes a limiting groove 421 formed at the bottom of the placement platform 419. A limiting strip 422 is slidably disposed inside the limiting groove 421. A fixing block 423 is fixedly installed on the top surface of the mounting plate 1. A first magnetic plate 424 is fixedly installed on the side wall of the fixing block 423. A sliding rod 425 is fixedly installed inside the first magnetic plate 424. A limiting block 426 is slidably disposed on the outer wall of the sliding rod 425. A second magnetic plate 427 is fixedly installed on the side wall of the limiting block 426.

[0033] In this embodiment, when liquid needs to be dispensed via dispensing bottle 3, it is clamped above the placement platform 419 and pushed below the dispensing mechanism to connect with the dispensing tube. At this time, an undispensed dispensing bottle 3 is clamped above another placement platform 419. After the dispensing bottle 3 above the first placement platform 419 has finished dispensing, the placement platform 419 is pushed so that it slides on the outer wall of the limiting strip 422. The outer wall of the placement platform 419 contacts and presses against the arc surface of the outer wall of the limiting block 426, causing the limiting block 426 to drive the second magnetic plate 427 towards the first... The magnetic plate 424 slides in the direction of the sliding block 426, and the limiting block 426 slides on the outer wall of the slide rod 425. When another unfilled dispensing bottle 3 is placed below the dispensing mechanism, the limiting block 426 is not squeezed. Under the magnetic repulsion between the second magnetic plate 427 and the first magnetic plate 424, the limiting block 426 is pushed, so that the limiting block 426 is locked against the outer wall of the placement platform 419. This structure can be used to alternately dispense through two placement platforms 419 to improve dispensing efficiency. Under the restriction of the limiting block 426, the misalignment of the dispensing bottle 3 and the dispensing tube can be avoided.

[0034] The outer wall of the limiting block 426 is arc-shaped, and the limiting block 426 is slidably disposed with the top surface of the mounting plate 1. Under its restriction, when the outer wall of the placement platform 419 is pressed against the arc surface of the limiting block 426, the limiting block 426 can slide smoothly.

[0035] The second magnetic plate 427 and the first magnetic plate 424 are magnetically repulsive. The second magnetic plate 427 and the slide rod 425 are slidably arranged. Under the restriction of magnetic repulsion, the limit block 426, which is not squeezed, is pushed, so that the limit block 426 restricts the placement platform 419.

[0036] There are two limiting blocks 426, which are symmetrically distributed around the center line of the top surface of the mounting plate 1. Under the restriction of the limiting blocks 426, the placement platform 419 can be restricted, so that the dispensing bottle 3 can be dispensed stably.

[0037] The above are merely illustrative embodiments of this utility model and are not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model. Furthermore, it should be noted that the components of this utility model are not limited to the overall application described above. Each technical feature described in the specification can be used individually or in combination as needed. Therefore, this utility model naturally covers other combinations and specific applications related to the points of this utility model.

Claims

1. A liquid dispensing device for preparing culture medium, comprising a mounting plate (1); The mounting plate (1) has mounting holes (2) inside; A dispensing bottle (3) is provided above the mounting plate (1); And the processing assembly (4) disposed above the mounting plate (1), characterized in that: The processing component (4) includes a stabilizing component (41) disposed above the mounting plate (1), and a limiting component (42) disposed below the stabilizing component (41).

2. The liquid dispensing device for culture medium preparation according to claim 1, characterized in that: The stabilizing component (41) includes a placement platform (419) slidably disposed above the mounting plate (1). A counter-threaded rod (411) is rotatably connected inside the placement platform (419). A sleeve block (412) is sleeved on the outer wall of the counter-threaded rod (411). A push plate (413) is fixedly installed on the outer wall of the sleeve block (412). A clamping frame (414) is fixedly installed on the outer wall of the push plate (413). A sliding groove (415) is opened on the inner side of the clamping frame (414). A first magnetic block (416) is fixedly installed on the inner wall of the sliding groove (415). A second magnetic block (417) is slidably disposed inside the sliding groove (415). A rubber rod (418) is fixedly installed on the side wall of the second magnetic block (417).

3. The liquid dispensing device for culture medium preparation according to claim 1, characterized in that: The limiting component (42) includes a limiting groove (421) formed at the bottom of the placement platform (419), a limiting strip (422) is slidably provided inside the limiting groove (421), a fixing block (423) is fixedly installed on the top surface of the mounting plate (1), a first magnetic plate (424) is fixedly installed on the side wall of the fixing block (423), a slide rod (425) is fixedly installed inside the first magnetic plate (424), a limiting block (426) is slidably provided on the outer wall of the slide rod (425), and a second magnetic plate (427) is fixedly installed on the side wall of the limiting block (426).

4. The liquid dispensing device for culture medium preparation according to claim 2, characterized in that: The rubber rod (418) is made of rubber, and the first magnetic block (416) and the second magnetic block (417) are magnetically repulsive.

5. A liquid dispensing device for culture medium preparation according to claim 2, characterized in that: The clamping frame (414) is arc-shaped, and the side wall of the clamping frame (414) is slidably disposed with the top surface of the placement platform (419).

6. A liquid dispensing device for preparing culture medium according to claim 2, characterized in that: The outer wall of the sleeve (412) is slidably disposed with the groove opened on the top surface of the placement platform (419), and the sleeve (412) is threadedly sleeved with the outer wall of the opposing threaded rod (411).

7. A liquid dispensing device for culture medium preparation according to claim 2, characterized in that: There are two placement platforms (419), which are distributed in parallel on the top surface of the mounting plate (1).

8. A liquid dispensing device for culture medium preparation according to claim 3, characterized in that: The outer wall of the limiting block (426) is arc-shaped, and the limiting block (426) is slidably disposed with the top surface of the mounting plate (1).

9. A liquid dispensing device for culture medium preparation according to claim 3, characterized in that: The second magnetic plate (427) and the first magnetic plate (424) are magnetically repelled, and the second magnetic plate (427) and the slide rod (425) are slidably arranged.

10. A liquid dispensing device for preparing culture medium according to claim 3, characterized in that: There are two limiting blocks (426), which are symmetrically distributed around the center line of the top surface of the mounting plate (1).

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