Culture medium split charging device
By designing a culture medium dispensing device, which utilizes components such as slide rails, sliding sleeves, and L-shaped plates, along with air extrusion technology, a contactless culture medium injection method is achieved, solving the problem of contamination during the culture medium dispensing process and ensuring the cleanliness of the culture medium.
Patent Information
- Application Number
- CN202422740358.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-11
AI Technical Summary
In existing technologies, culture media are easily contaminated during the dispensing process, and repeated pipetting can also cause contamination.
A culture medium dispensing device was designed, which uses components such as slide rail, slide sleeve, L-shaped plate, guide plate, liquid outlet head, internal pressure tube, one-way valve, rubber stopper, and push column. The liquid outlet head and internal pressure tube are moved in two dimensions, combined with air extrusion, to achieve contactless culture medium injection.
This effectively avoids contamination of the culture medium during the dispensing process, ensuring the cleanliness of the culture medium.
Smart Images
Figure CN223494901U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of culture medium technology, and in particular to a culture medium dispensing device. Background Technology
[0002] The mixed culture medium needs to be injected into individual test tubes according to a predetermined method for comparative experiments. Currently, when dispensing culture medium, it is done by pipetting the medium out and then quantitatively squeezing it into test tubes. However, during this process, the remaining culture medium is easily contaminated, and repeated extraction of culture medium by the pipette can also easily cause contamination. Utility Model Content
[0003] This invention provides a culture medium dispensing device to overcome the shortcomings of the prior art, which can prevent the culture medium from being contaminated during the sampling process and has strong practicality.
[0004] In order to achieve the purpose of this utility model, the following technology is proposed to be adopted:
[0005] A culture medium dispensing device includes a base plate, a slide rail mounted on the base plate, a sliding sleeve slidably mounted on the slide rail, an L-shaped plate mounted on one side of the sliding sleeve, a pair of guide plates mounted on the L-shaped plate, a slider slidably mounted on the guide plates, a dispensing head mounted on the slider, and a flexible tube connected to the dispensing head. The culture medium is injected into each test tube through the dispensing head, which is movable in a two-dimensional direction.
[0006] An L-shaped mounting plate is installed on the other side of the sliding sleeve. An internal pressure pipe is installed on the L-shaped mounting plate. A one-way valve is provided on the inner end of the internal pressure pipe. A rubber plug is provided inside the internal pressure pipe. A push rod is connected to the rubber plug. An end cap is provided on the outer end of the push rod. An air inlet pipe is connected to the inner end of the internal pressure pipe. The movable rubber plug is used to squeeze out the air in the internal pressure pipe. The one-way valve is designed so that gas can enter the internal pressure pipe when the rubber plug moves outward, and the one-way valve is closed when it is pushed inward.
[0007] Side plates are installed at both ends of the sliding sleeve, and a lower plate is installed at the lower end between the side plates. A pair of insertion pipes are provided on the lower plate. One insertion pipe is connected to the air inlet pipe, and the other insertion pipe is connected to the hose. The insertion pipes facilitate the injection of culture medium during injection.
[0008] The upper part of the side plate is rotatably equipped with a through-post, and the inner end of the through-post is equipped with a rectangular frame. The lower end of the rectangular frame is equipped with a rubber stopper, and the rubber stopper is equipped with an air inlet tube and a liquid outlet tube. One of the connecting tubes is inserted into the outer end of the air inlet tube, and the other connecting tube is inserted into the outer end of the liquid outlet tube. The rubber stopper can seal the opening of the bottle. When air is introduced into the bottle through the air inlet tube, the culture medium can be squeezed out of the liquid outlet tube by the air or purified air, thus facilitating the squeezing out of the bottle and injecting the culture medium into each test tube.
[0009] Furthermore, to facilitate the placement of test tubes, a rectangular placement tray is placed at one end of the base plate, and the rectangular placement tray has multiple placement holes.
[0010] Furthermore, in order to limit the rectangular placement tray, U-shaped grooves are provided on both sides of the rectangular placement tray, and a pair of round-headed clamping plates are installed on the bottom plate, with the round-headed clamping plates passing through the U-shaped grooves.
[0011] Furthermore, in order to facilitate the injection of air or purified air, a pair of lugs are provided at the outer end of the inner pressure tube.
[0012] Furthermore, in order to facilitate the insertion and connection of the connector, a waist-shaped hole is provided at the upper end of the side plate, and the through-post passes through the waist-shaped hole.
[0013] Furthermore, in order to limit the position of the bottle, a downward pressure screw is connected to the upper end of the rectangular frame by a thread, and a pressure plate is provided at the lower end of the downward pressure screw, which acts on the bottom of the bottle.
[0014] The advantages of the above technical solution are:
[0015] This invention enables the dispensing of culture media to prevent contamination during the dispensing process. Attached Figure Description
[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will provide a further detailed description of this utility model in conjunction with the accompanying drawings.
[0017] Figure 1 A three-dimensional structure of one embodiment is shown. Figure 1 .
[0018] Figure 2 A three-dimensional structure of one embodiment is shown. Figure 2 .
[0019] Figure 3 A cross-sectional view of one embodiment is shown.
[0020] Figure 4A three-dimensional structural diagram of a rectangular placement disk is shown. Detailed Implementation
[0021] like Figures 1-4 As shown, a culture medium dispensing device includes a base plate 1, a slide rail 4 mounted on the base plate 1, a sliding sleeve 40 slidably mounted on the slide rail 4, an L-shaped plate 41 mounted on one side of the sliding sleeve 40, a pair of guide plates 42 mounted on the L-shaped plate 41, a slider 43 slidably mounted on the guide plate 42, a liquid outlet head mounted on the slider 43, and a flexible tube 44 connected to the liquid outlet head.
[0022] An L-shaped mounting plate 5 is installed on the other side of the sliding sleeve 40. An internal pressure pipe 50 is installed on the L-shaped mounting plate 5. A one-way valve is provided on the inner end of the internal pressure pipe 50. A pair of lugs 51 are provided on the outer end of the internal pressure pipe 50. A rubber plug is provided inside the internal pressure pipe 50. A push rod 52 is connected to the rubber plug. An end cap 53 is provided on the outer end of the push rod 52. An air intake pipe is connected to the inner end of the internal pressure pipe 50.
[0023] Side plates 6 are installed at both ends of the sliding sleeve 40. The upper end of the side plate 6 has an oblong hole 60, and the through post 61 passes through the oblong hole 60. A lower plate 66 is installed at the lower end between the side plates 6. A pair of insertion pipes 69 are provided on the lower plate 66. One insertion pipe 69 is connected to the air inlet pipe, and the other insertion pipe 69 is connected to the hose 44. The upper end of the rectangular frame 62 is connected to the pressing screw 63 by a thread. The lower end of the pressing screw 63 is provided with a pressure plate, which acts on the bottom of the bottle.
[0024] The upper end of the side plate 6 is provided with a through post 61, the inner end of the through post 61 is provided with a rectangular frame 62, the lower end of the rectangular frame 62 is provided with a rubber plug 65, the rubber plug 65 is provided with an air inlet pipe 67, and the rubber plug 65 is provided with a liquid outlet pipe 68. One of the insertion pipes 69 is inserted into the outer end of the air inlet pipe 67, and the other insertion pipe 69 is inserted into the outer end of the liquid outlet pipe 68.
[0025] In some embodiments, a rectangular placement plate 3 is placed at one end of the base plate 1. The rectangular placement plate 3 has a plurality of placement holes 31 and U-shaped grooves 30 are provided on both sides of the rectangular placement plate 3. A pair of round-headed clamping plates 2 are installed on the base plate 1 and pass through the U-shaped grooves 30.
[0026] In this embodiment, during operation, the operator places the test tube in the placement hole 31 of the rectangular placement tray 3.
[0027] The operator then places the rectangular placement tray 3 on the round-headed clamping plate 2 and limits the rectangular placement tray 3.
[0028] Next, the operator places the bottle containing the culture medium on the pressure plate and rotates the screw 63 to make the rubber stopper 65 block the bottle mouth. At this time, the inner end of the air inlet tube 67 will be inserted into the bottom of the bottle. In order to facilitate the insertion of the air inlet tube 67 into the bottle, the air inlet tube 67 is made of soft plastic material.
[0029] The operator then rotates the rectangular frame 62 so that the rubber stopper 65 faces downward. The operator then places the end plug on the outlet pipe 68 and presses the bottle body downward so that the insertion tube 69 is inserted into the air inlet pipe 67 and the outlet pipe 68.
[0030] The operator then moves the dispensing head above the test tube and pulls the pusher 52 outward to draw in purified air through the rubber stopper. Then, the operator presses the pusher 52 to inject the purified air into the bottle, thereby allowing the culture medium to be discharged from the dispensing head into the test tube.
[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A culture medium dispensing device, characterized in that, Includes a base plate (1), on which a slide rail (4) is installed, and a sliding sleeve (40) is slidably provided on the slide rail (4). An L-shaped plate (41) is installed on one side of the sliding sleeve (40), and a pair of guide plates (42) are installed on the L-shaped plate (41). A slider (43) is slidably provided on the guide plate (42), and a liquid outlet head is provided on the slider (43). A hose (44) is connected to the liquid outlet head. An L-shaped mounting plate (5) is installed on the other side of the sliding sleeve (40). An internal pressure pipe (50) is installed on the L-shaped mounting plate (5). A one-way valve is provided on the inner end of the internal pressure pipe (50). A rubber plug is provided inside the internal pressure pipe (50). A push rod (52) is connected to the rubber plug. An end cap (53) is provided on the outer end of the push rod (52). An air inlet pipe is connected to the inner end of the internal pressure pipe (50). Side plates (6) are installed at both ends of the sliding sleeve (40), and a lower plate (66) is installed at the lower end between the side plates (6). A pair of insertion pipes (69) are provided on the lower plate (66), one of which is connected to the air intake pipe and the other is connected to the hose (44). The upper end of the side plate (6) is provided with a through post (61), the inner end of the through post (61) is provided with a rectangular frame (62), the lower end of the rectangular frame (62) is provided with a rubber plug (65), the rubber plug (65) is provided with an air inlet pipe (67), the rubber plug (65) is provided with a liquid outlet pipe (68), one of the insertion pipes (69) is inserted into the outer end of the air inlet pipe (67), and the other insertion pipe (69) is inserted into the outer end of the liquid outlet pipe (68).
2. The culture medium dispensing device according to claim 1, characterized in that, A rectangular placement plate (3) is placed at one end of the base plate (1), and multiple placement holes (31) are provided on the rectangular placement plate (3).
3. The culture medium dispensing device according to claim 2, characterized in that, The rectangular placement tray (3) has U-shaped grooves (30) on both sides, and a pair of round-headed clamping plates (2) are installed on the bottom plate (1), with the round-headed clamping plates (2) passing through the U-shaped grooves (30).
4. The culture medium dispensing device according to claim 1, characterized in that, The outer end of the inner pressure tube (50) is provided with a pair of lugs (51).
5. The culture medium dispensing device according to claim 1, characterized in that, The upper end of the side plate (6) is provided with a waist-shaped hole (60), and the through post (61) passes through the waist-shaped hole (60).
6. The culture medium dispensing device according to claim 1, characterized in that, The upper end of the rectangular frame (62) is connected to a lower pressure screw (63) by a thread. The lower end of the lower pressure screw (63) is provided with a pressure plate, which acts on the bottom of the bottle.