Rapid subpackaging equipment for microbiological inspection culture medium

By introducing support and adjustment components into the microbial test culture medium dispensing equipment, the problem of culture medium splashing caused by the gap between the output tube and the test tube was solved, achieving a more efficient and accurate dispensing process.

CN224146354UActive Publication Date: 2026-04-21TAIHE HOSPITAL OF SHIYAN CITY (AFFILIATED HOSPITAL OF HUBEI UNIVERSITY OF MEDECINE)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TAIHE HOSPITAL OF SHIYAN CITY (AFFILIATED HOSPITAL OF HUBEI UNIVERSITY OF MEDECINE)
Filing Date
2025-04-18
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In existing technologies, there is a gap between the output end of the output tube and the test tube during the culture medium dispensing process, which may cause the culture medium to splash out from the gap, resulting in waste.

Method used

A rapid dispensing device for microbial test culture medium was designed. It employs a support component and an adjustment component to ensure that the output end moves back and forth in a specified direction when the vessel rack rotates, inserting into different test tubes and reducing gaps. The height of the output end can be adjusted according to the test tube specifications using the adjustment component.

Benefits of technology

It effectively reduces the risk of culture medium splashing during the dispensing process and improves the applicability and dispensing accuracy of the equipment.

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Abstract

The utility model relates to the technical field of culture medium rapid split charging equipment, in particular to microbiological examination culture medium rapid split charging equipment which comprises a base, a peristaltic pump is fixedly connected to the upper surface of the base, a storage box is installed on the portion, located on the right side of the peristaltic pump, of the base, and a vessel frame is rotationally connected to the upper surface of the base. A vessel rack is arranged on the base, a test tube is inserted into the inner wall of the vessel rack, a motor is fixedly connected to the lower surface of the base, a driving shaft of the motor is fixedly connected with the lower surface of the vessel rack, supporting feet are fixedly connected to the lower surface of the base, and a supporting assembly is arranged on the upper surface of the base. According to the utility model, the supporting assembly is arranged, so that the output end of the equipment can move up and down in a reciprocating manner along with the rotation of the vessel rack in the working process so as to be inserted into different test tubes in a reciprocating manner, so that the output end of the equipment is inserted into the test tubes when a culture medium is pumped by the equipment, and gaps generated during subpackaging are reduced.
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Description

Technical Field

[0001] This utility model relates to the technical field of rapid dispensing equipment for culture media, and in particular to a rapid dispensing equipment for microbial testing culture media. Background Technology

[0002] Rapid culture medium dispensing equipment is a professional instrument used in life science research, biopharmaceuticals, and microbial detection for efficient and accurate dispensing of culture media. This equipment effectively solves the problems of low efficiency and large errors in traditional manual dispensing, providing an efficient, stable, and standardized solution for culture medium dispensing in related industries, and powerfully promoting the smooth progress of scientific research and production.

[0003] Existing technologies, such as the utility model patent with publication number CN219487781U, disclose a culture medium dispensing device. This patent uses a base, with a base fixedly installed on the upper end of the base. A peristaltic pump is installed on the upper end of the base, and a PLC controller is fixedly installed on the upper end of the base. A feed pipe is installed at the feed inlet of the peristaltic pump through a movable screw sleeve, and a discharge pipe is installed at the discharge outlet of the peristaltic pump through a movable screw sleeve. A bracket is fixedly installed on the outside of the base, and a clamping mechanism is provided on the upper end of the bracket. The bracket clamps the other end of the discharge pipe through the clamping structure. A dispensing mechanism is provided on the upper end of the base. This solves the problem that in the current technology, biological laboratories often need to dispense culture media according to stages during biological culture. The current dispensing method mainly involves placing the feed pipe connected to the feed inlet of the peristaltic pump into the culture medium storage cylinder, and then connecting the other end of the discharge pipe to the discharge outlet. This requires manual handling of the discharge pipe while constantly changing culture dishes with the other hand, which is very inconvenient.

[0004] In the process of dispensing culture medium using dispensing equipment, such as the equipment described above, a clamping mechanism fixed to the side of the base is used to clamp and position the end of the output tube. Since the position of the output end of the clamped output tube remains fixed, there is a certain gap between the output end of the output tube and the test tube during the dispensing process. The existence of this gap brings a risk that the culture medium may splash out from this gap during the dispensing operation, resulting in the waste of culture medium. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art where there is a certain gap between the output end of the output tube and the test tube during the dispensing process. This gap poses a risk that the culture medium may splash out from the gap during the dispensing operation, resulting in waste of the culture medium. Therefore, this invention proposes a rapid dispensing device for microbial test culture medium.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a rapid dispensing device for microbial test culture medium, comprising a base, a peristaltic pump fixedly connected to the upper surface of the base, a storage box installed on the right side of the base to the peristaltic pump, a dish rack rotatably connected to the upper surface of the base, test tubes inserted into the inner wall of the dish rack, a motor fixedly connected to the lower surface of the base, the drive shaft of the motor fixedly connected to the lower surface of the dish rack, support legs fixedly connected to the lower surface of the base, a support assembly provided on the upper surface of the base, and a drip tube fixedly connected to the output end of the peristaltic pump;

[0007] The support assembly includes a support frame, which is fixedly connected to the upper surface of the base. A connecting frame is slidably connected to the inner wall of the support frame. A U-shaped block is fixedly connected to the side surface of the connecting frame. A top block is fixedly connected to the arc surface of the utensil rack. A positioning frame is slidably connected to the inner wall of the connecting frame. The positioning frame is sleeved with the surface of the drip tube. A threaded hole is opened on the arc surface of the positioning frame. A fastening bolt is threadedly connected to the inner wall of the threaded hole of the positioning frame.

[0008] Preferably, the input end of the peristaltic pump is inserted inside the storage tank and is connected to the inside of the storage tank. The drip tube is located directly above the leftmost test tube. Under the control of the control chip, the peristaltic pump can quantitatively pump the culture medium in the storage tank into the test tube during operation.

[0009] Preferably, the U-shaped block contacts the arc surface of the top block, and there are multiple top blocks arranged in a circumferential array with reference to the outer circumference of the utensil rack. The top blocks can rotate in a specified direction when the utensil rack is driven to rotate, and contact the U-shaped block during the rotation to lift the connecting frame.

[0010] Preferably, the drip tube penetrates the lower surface of the positioning frame, and the fastening bolt abuts against the arc surface of the drip tube. The position of the drip tube can be locked in the positioning frame by the fastening bolt, so that the positioning frame can move up and down while driving the drip tube to move in a specified direction.

[0011] Preferably, the connecting frame has an adjustment component inside, the adjustment component includes a slider, the surface of the connecting frame has an installation cavity, the slider is slidably connected to the inner wall of the installation cavity, the front and rear sides of the slider are fixedly connected to connecting frames, the connecting frames are fixedly connected to the surface of the positioning frame, the connecting frames are slidably connected to the inner wall of the support frame, the connecting frame is rotatably connected to a lead screw located on the inner wall of the installation cavity, the slider is threadedly connected to the surface of the lead screw, the upper surface of the connecting frame is fixedly connected to a damping pad, and the upper surface of the lead screw is fixedly connected to a knob, the knob abuts against the upper surface of the damping pad. The damping pad can increase the stability of the knob in a non-stressed state, thereby reducing the probability of the knob rotating due to non-operational factors.

[0012] Preferably, the connecting frame is slidably connected to the inner wall of the mounting cavity. The connecting frame can connect the slider and the positioning frame so that when the height of the slider is adjusted, the positioning frame can move synchronously.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, by setting a support component, the output end of the device can move up and down repeatedly in a specified direction along the rotation of the glassware rack during operation, thereby repeatedly inserting into different test tubes, so as to ensure that the output end of the device is inserted into the test tube when the device pumps the culture medium, reducing the gap generated during dispensing.

[0015] 2. In this utility model, by setting an adjustment component, the height of the output end of the dispensing equipment can be adjusted according to the specifications of the test tubes used, thereby increasing the applicability of the dispensing equipment. Attached Figure Description

[0016] Figure 1 This invention provides a three-dimensional structural schematic diagram of a rapid dispensing device for microbial testing culture media;

[0017] Figure 2 This utility model provides a front view structural diagram of a rapid dispensing device for microbial testing culture medium;

[0018] Figure 3 A partial structural cross-sectional view of a rapid dispensing device for microbial testing culture medium is provided for this utility model;

[0019] Figure 4 This invention provides a partial structural schematic diagram of a rapid dispensing device for microbial testing culture media;

[0020] Figure 5 This utility model provides a schematic diagram of the adjustment component structure of a rapid dispensing device for microbial testing culture medium;

[0021] Figure 6 This invention provides a rapid dispensing device for microbial testing culture media. Figure 5 Schematic diagram of the structure at point A in the middle.

[0022] Legend:

[0023] 1. Base; 2. Peristaltic pump; 3. Storage tank; 4. Utensil rack; 5. Test tube; 6. Motor; 7. Support leg; 8. Support assembly; 81. Support frame; 82. Connecting frame; 83. U-shaped block; 84. Top block; 85. Positioning frame; 86. Fastening bolt; 9. Adjustment assembly; 91. Mounting cavity; 92. Slider; 93. Connecting frame; 94. Lead screw; 95. Damping pad; 96. Knob; 10. Dropper. Detailed Implementation

[0024] Please see Figures 1-6 This utility model provides a technical solution: a rapid dispensing device for microbial test culture medium, including a base 1, a peristaltic pump 2 fixedly connected to the upper surface of the base 1, a storage box 3 installed on the right side of the base 1 to the peristaltic pump 2, a vessel rack 4 rotatably connected to the upper surface of the base 1, test tubes 5 inserted into the inner wall of the vessel rack 4, a motor 6 fixedly connected to the lower surface of the base 1, the drive shaft of the motor 6 fixedly connected to the lower surface of the vessel rack 4, a support leg 7 fixedly connected to the lower surface of the base 1, a support assembly 8 provided on the upper surface of the base 1, a drip tube 10 fixedly connected to the output end of the peristaltic pump 2, and an adjustment assembly 9 provided inside the connecting frame 82.

[0025] In this embodiment: the support component 8 includes a support frame 81, which is fixedly connected to the upper surface of the base 1. A connecting frame 82 is slidably connected to the inner wall of the support frame 81. A U-shaped block 83 is fixedly connected to the side surface of the connecting frame 82. A top block 84 is fixedly connected to the arc surface of the container rack 4. A positioning frame 85 is slidably connected to the inner wall of the connecting frame 82. The positioning frame 85 is sleeved with the surface of the drip tube 10. A threaded hole is opened on the arc surface of the positioning frame 85. A fastening bolt 86 is threadedly connected to the inner wall of the threaded hole of the positioning frame 85.

[0026] Specifically, the input end of the peristaltic pump 2 is inserted inside the storage tank 3 and is connected to the inside of the storage tank 3. The drip tube 10 is located directly above the leftmost test tube 5. Under the control of the control chip, the peristaltic pump 2 can pump the culture medium in the storage tank 3 into the test tube 5 in a quantitative manner.

[0027] Specifically, the U-shaped block 83 contacts the arc surface of the top block 84, and there are multiple top blocks 84 arranged in a circular array with reference to the outer circumference of the vessel rack 4.

[0028] In this embodiment: the top block 84 can rotate in a specified direction when the utensil rack 4 is driven to rotate, and contact the U-shaped block 83 during the rotation to lift the connecting frame 82.

[0029] Specifically, the drip tube 10 penetrates the lower surface of the positioning frame 85, and the fastening bolt 86 abuts against the arc surface of the drip tube 10. The position of the drip tube 10 can be locked in the positioning frame 85 by the fastening bolt 86, so that the positioning frame 85 can move up and down while driving the drip tube 10 to move in the specified direction.

[0030] In this embodiment: the adjustment component 9 includes a slider 92, the surface of the connecting frame 82 is provided with an installation cavity 91, the slider 92 is slidably connected to the inner wall of the installation cavity 91, the front and rear sides of the slider 92 are fixedly connected to connecting frames 93, the connecting frames 93 are fixedly connected to the surface of the positioning frame 85, the connecting frames 93 are slidably connected to the inner wall of the support frame 81, the connecting frame 82 is rotatably connected to the inner wall of the installation cavity 91 with a lead screw 94, the slider 92 is threadedly connected to the surface of the lead screw 94, the upper surface of the connecting frame 82 is fixedly connected to a damping pad 95, the upper surface of the lead screw 94 is fixedly connected to a knob 96, and the knob 96 abuts against the upper surface of the damping pad 95.

[0031] In this embodiment, the damping pad 95 can increase the stability of the knob 96 in a non-stressed state, thereby reducing the probability of the knob 96 rotating due to non-operational factors.

[0032] Specifically, the connecting frame 93 is slidably connected to the inner wall of the mounting cavity 91.

[0033] In this embodiment, the slider 92 and the positioning frame 85 can be connected by the connecting frame 93 so that when the height of the slider 92 is adjusted, the positioning frame 85 can move synchronously.

[0034] Working principle: When dispensing culture medium, add the culture medium into the storage tank 3, and at the same time, place the test tubes 5 evenly in the glassware rack 4. After completing the dispensing preparation, turn on the peristaltic pump 2 and the motor 6. The peristaltic pump 2 works to pump the culture medium in the storage tank 3 into the test tubes 5. After the test tubes 5 at the output end are dispensed, the peristaltic pump 2 stops, and the motor 6 works to rotate the glassware rack 4. The glassware rack 4 rotates the subsequent empty test tubes 5 to below the output end. When the empty test tubes 5 are rotated to below the output end, the motor 6 stops, and the peristaltic pump 2 starts working again to pump the culture medium into the test tubes 5. After the culture medium is dispensed, the test tubes 5 can be removed from the glassware rack 4.

[0035] As the glassware rack 4 rotates, it causes the top block 84 on its outer side to rotate as well. During this rotation, the top block 84 contacts the arc surface of the U-shaped block 83 and, in conjunction with the U-shaped block 83, pushes the connecting frame 82 upwards. Guided by the support frame 81, the connecting frame 82 pushes the positioning frame 85 vertically. The positioning frame 85, in conjunction with the fastening bolt 86, pushes the drip tube 10 upwards. As the drip tube 10 moves upwards, it separates from the test tube 5. When the connecting frame 82 is pushed to its maximum height, it will... Guided by the U-shaped block 83 and the top block 84, the device moves downward along the arc surface of the top block 84. When the connecting frame 82 moves downward, it works with the positioning frame 85 and the fastening bolt 86 to pull the drip tube 10, so that the drip tube 10 is inserted into another test tube 5. By setting the support component 8, the output end of the device can follow the rotation of the glassware rack 4 during operation and move up and down in a specified direction, thereby repeatedly inserting into different test tubes 5, so as to ensure that the output end of the device is inserted into the test tube 5 when the device pumps the culture medium, reducing the gap generated during dispensing.

[0036] In addition, when the height of the test tube 5 changes and the position of the dropper 10 needs to be adjusted, the knob 96 is rotated clockwise. The knob 96 rotates the lead screw 94. When the lead screw 94 rotates, it engages with the slider 92 through the thread. Under the guidance of the mounting cavity 91, the slider 92, together with the connecting frame 93, moves the positioning frame 85 in the specified direction. The positioning frame 85 moves the dropper 10, thereby adjusting the position of the dropper 10. After the adjustment is completed, the knob 96 is stopped. The knob 96, together with the damping pad 95 and the lead screw 94, locks the position of the slider 92, thereby ensuring the stability of the adjusted positioning frame 85. By setting the adjustment component 9, the height of the output end of the dispensing equipment can be adjusted according to the specifications of the test tube 5 used, thereby increasing the applicability of the dispensing equipment.

Claims

1. A rapid dispensing equipment for microbiological test culture medium, comprising a base (1), characterized in that: A peristaltic pump (2) is fixedly connected to the upper surface of the base (1). A storage box (3) is installed on the right side of the peristaltic pump (2) on the base (1). A glassware rack (4) is rotatably connected to the upper surface of the base (1). Test tubes (5) are inserted into the inner wall of the glassware rack (4). A motor (6) is fixedly connected to the lower surface of the base (1). The drive shaft of the motor (6) is fixedly connected to the lower surface of the glassware rack (4). A support leg (7) is fixedly connected to the lower surface of the base (1). A support assembly (8) is provided on the upper surface of the base (1). A drip tube (10) is fixedly connected to the output end of the peristaltic pump (2). The support assembly (8) includes a support frame (81), which is fixedly connected to the upper surface of the base (1). A connecting frame (82) is slidably connected to the inner wall of the support frame (81). A U-shaped block (83) is fixedly connected to the side surface of the connecting frame (82). A top block (84) is fixedly connected to the arc surface of the container rack (4). A positioning frame (85) is slidably connected to the inner wall of the connecting frame (82). The positioning frame (85) is sleeved with the surface of the drip tube (10). A threaded hole is opened on the arc surface of the positioning frame (85). A fastening bolt (86) is threadedly connected to the inner wall of the threaded hole of the positioning frame (85).

2. The rapid dispensing equipment for microbiological examination culture medium according to claim 1, characterized in that: The input end of the peristaltic pump (2) is inserted inside the storage tank (3), and the input end of the peristaltic pump (2) is connected to the inside of the storage tank (3). The drip tube (10) is located directly above the leftmost test tube (5).

3. The rapid dispensing equipment for microbiological examination culture medium according to claim 1, characterized in that: The U-shaped block (83) contacts the arc surface of the top block (84). There are multiple top blocks (84), and the multiple top blocks (84) are arranged in a circular array with reference to the outer circumference of the utensil holder (4).

4. The rapid dispensing equipment for microbiological examination culture medium according to claim 1, characterized in that: The drip tube (10) penetrates the lower surface of the positioning frame (85), and the fastening bolt (86) abuts against the arc surface of the drip tube (10).

5. The rapid dispensing equipment for microbiological examination culture medium according to claim 1, characterized in that: The connecting frame (82) is provided with an adjustment component (9) inside. The adjustment component (9) includes a slider (92). The surface of the connecting frame (82) is provided with an installation cavity (91). The slider (92) is slidably connected to the inner wall of the installation cavity (91). Connecting frames (93) are fixedly connected to both the front and rear sides of the slider (92). The connecting frames (93) are fixedly connected to the surface of the positioning frame (85). The connecting frames (93) are slidably connected to the inner wall of the support frame (81). The connecting frame (82) is rotatably connected to the inner wall of the installation cavity (91) with a lead screw (94). The slider (92) is threadedly connected to the surface of the lead screw (94). A damping pad (95) is fixedly connected to the upper surface of the connecting frame (82). A knob (96) is fixedly connected to the upper surface of the lead screw (94). The knob (96) abuts against the upper surface of the damping pad (95).

6. The rapid dispensing equipment for microbiological examination culture medium according to claim 5, characterized in that: The connecting frame (93) is slidably connected to the inner wall of the mounting cavity (91).

Citation Information

Patent Citations

  • Culture medium split charging equipment

    CN219487781U