Automatic culture medium split charging instrument

Abstract

The utility model provides an automatic culture medium split charging instrument, and relates to the technical field of experimental devices.The automatic culture medium split charging instrument comprises a culture dish, the culture dish comprises a dish bottom and a dish cover, and the dish cover can detachably cover the dish bottom; the upper clamping mechanism is used for clamping the dish cover; the lower clamping mechanism is used for clamping the dish bottom; the translation mechanism is connected with the lower clamping mechanism; the lifting mechanism is connected with the translation mechanism, and the lifting mechanism is used for driving the translation mechanism to ascend and descend; the quantitative filling device is provided with a filling end used for quantitatively filling a culture medium into the dish bottom, and the translation mechanism is used for driving the lower clamping mechanism to translate so that the dish bottom can move to the position below the filling end. Therefore, manual operation of workers is not needed, the labor intensity of the workers is effectively relieved, and the sub-packaging efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of experimental devices, and in particular to an automatic culture medium dispensing device. Background Art

[0002] Culture medium is an artificially prepared nutrient matrix suitable for the growth and reproduction of different microorganisms or the accumulation of metabolites. It generally contains water, nitrogen source, inorganic salts (including trace elements), carbon source, growth factors (vitamins, amino acids, bases, antibiotics, pigments, hormones and serum, etc.). Culture medium dispensing instrument is a device used to dispense culture medium. It can dispense a certain amount of culture medium into multiple culture dishes to conduct microbial action experiments and clarify the effect of drugs on microorganisms.

[0003] For example, the utility model patent with publication number CN212955150U discloses a culture medium filling system, which includes a filling platform, a front-and-rear moving device, a left-and-right moving device, a dispensing tube and a control device. When filling is required, the staff will place multiple culture dishes on the filling platform, and then control the first end of the dispensing tube to move above the culture dishes through the front-and-rear moving device and the left-and-right moving device, and then control the flow of the culture medium in the dispensing tube through the control device to achieve quantitative filling of the culture medium.

[0004] However, since the common culture dishes currently consist of a dish bottom and a dish cover, when using the above-mentioned culture medium filling system to fill the culture medium, the staff is required to first open the dish cover and place the dish bottom on the filling platform. After the filling is completed, the dish cover is buckled on the dish bottom, which makes the operation more troublesome, affects the filling efficiency, and increases the labor intensity of the staff. Utility Model Content

[0005] The purpose of the present application is to provide an automatic culture medium dispensing device, which is used to solve the problem that the culture medium dispensing system in the related art needs to manually open and close the dish cover when dispensing the culture medium, resulting in troublesome operation.

[0006] The automatic culture medium dispensing device provided in the present application adopts the following technical solution:

[0007] An automatic culture medium dispensing device, comprising:

[0008] A culture dish, the culture dish comprising a dish bottom and a dish cover, the dish cover being detachably buckled onto the dish bottom;

[0009] An upper clamping mechanism, the upper clamping mechanism is used to clamp the dish cover;

[0010] A lower clamping mechanism, the lower clamping mechanism is used to clamp the bottom of the dish;

[0011] A translation mechanism connected to the lower clamping mechanism;

[0012] A lifting mechanism, the lifting mechanism is connected to the translation mechanism, and the lifting mechanism is used to drive the translation mechanism to rise and fall;

[0013] The quantitative filling device is provided with a filling end for quantitatively filling culture medium into the bottom of the dish, and the translation mechanism is used to drive the lower clamping mechanism to translate so that the bottom of the dish moves below the filling end.

[0014] Optionally, it further includes a receiving cylinder and a pushing member, wherein the receiving cylinder is used to receive the culture dish, and the pushing member is used to push the culture dish in the receiving cylinder to the upper clamping mechanism and the lower clamping mechanism.

[0015] Optionally, the accommodating cylinder includes a cylinder body, a cylinder cover, a support plate and a first elastic member, the cylinder cover is detachably connected to the cylinder body, the cylinder body is provided with an outlet for pushing out the culture dish, and a through groove for the pushing member to pass through, the support plate is slidably arranged in the cylinder body, the first elastic member is arranged on the cylinder body and acts on the support plate, and the first elastic member is used to provide an elastic force to push the support plate toward the outlet.

[0016] Optionally, the upper clamping mechanism includes a guide tube and a first horizontal limiter, the guide tube is provided with a first limiter for limiting the dish cover in the vertical direction, the first horizontal limiter is arranged on the guide tube, the first horizontal limiter is used to limit the dish cover in the horizontal direction, the guide tube has an opening at the bottom, and the lower clamping mechanism is arranged at the opening of the guide tube.

[0017] Optionally, a first annular groove is provided on the peripheral wall of the dish cover, and the first limiting portion is a first protrusion provided on the inner wall of the guide tube, and the first protrusion can be slidably engaged with the first annular groove.

[0018] Optionally, the lower clamping mechanism includes a tray and a second horizontal limiter, the translation mechanism is connected to the tray, the inner wall of the tray can be connected with the inner wall of the guide tube, the tray is provided with a second limiter for limiting the bottom of the dish in the vertical direction, the second horizontal limiter is provided on the tray, and the second horizontal limiter is used to limit the bottom of the dish in the horizontal direction.

[0019] Optionally, a second annular groove is provided on the peripheral wall of the dish bottom, and the second limiting portion is a second protrusion provided on the inner wall of the tray, and the second protrusion can be slidably engaged with the second annular groove.

[0020] Optionally, the lifting mechanism includes a lifting drive and a lifting seat, the lifting drive is connected to the lifting seat, the translation mechanism includes a translation drive, the tray is slidably disposed on the lifting seat, the translation drive is disposed on the lifting seat and connected to the tray.

[0021] Optionally, the translation driving member includes a vertical rack, a gear and a second elastic member, the vertical rack is vertically slidably arranged on the lifting seat, the second elastic member is arranged on the lifting seat and acts on the vertical rack, the second elastic member is used to provide an elastic force to push the vertical rack to move downward, the gear is rotatably arranged on the lifting seat, and a transverse rack is provided on the tray, and the vertical rack and the transverse rack are respectively meshed with the gear.

[0022] Optionally, it also includes an inclined guide groove, the high end of which is connected to the end of the guide tube and the tray.

[0023] In summary, the present application includes the following beneficial technical effects: when the culture medium is quantitatively added to the culture dish by the culture medium automatic dispensing device of the present application, the dish cover is clamped by the upper clamping mechanism, and the dish bottom is clamped by the lower clamping mechanism, and then the translation mechanism is driven downward by the lifting mechanism to drive the dish bottom downward, and the dish bottom is separated from the dish cover, and then the lower clamping mechanism is driven to translate by the translation mechanism to move the dish bottom to below the filling end of the quantitative filling device, and then the culture medium is quantitatively added to the dish bottom by the quantitative filling device. When the culture medium is filled, the bottom of the dish is driven to reset by the translation mechanism and the lifting mechanism, and is re-covered with the dish cover, so as to realize the opening, filling and closing of the culture dish, so that the staff does not need to perform manual operation, which effectively reduces the labor intensity of the staff and improves the dispensing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the automatic culture medium dispensing device in the embodiment of the present application;

[0025] Figure 2 It is a cross-sectional view of the automatic culture medium dispensing device from the first perspective in the embodiment of the present application;

[0026] Figure 3 for Figure 2 A partial enlarged schematic diagram of part B;

[0027] Figure 4 It is a cross-sectional view of the automatic culture medium dispensing device from a second viewing angle in the embodiment of the present application;

[0028] Figure 5 for Figure 4 A partial enlarged schematic diagram of part A.

[0029] Description of reference numerals:

[0030] 10. Frame; 11. Vertical guide rod;

[0031] 20. culture dish; 21. dish bottom; 211. second annular groove; 22. dish cover; 221. first annular groove;

[0032] 30. Lifting mechanism; 31. Lifting seat; 311. Guide sleeve; 312. Limiting plate; 32. Screw rod; 33. Lifting motor; 34. Screw sleeve;

[0033] 40. quantitative filling device; 41. filling head; 42. liquid storage tank; 43. quantitative pump; 44. first pipeline; 45. second pipeline;

[0034] 50, containing cylinder; 51, cylinder body; 511, outlet; 512, through slot; 52, cylinder cover; 53, supporting plate; 54, first spring;

[0035] 60. guide tube; 61. first protrusion; 70. first push-pull electromagnet;

[0036] 80, tray; 81, second protrusion; 82, transverse guide rod; 83, transverse rack; 90, second push-pull electromagnet;

[0037] 100, translation driving member; 101, vertical rack; 1011, slide bar; 1012, baffle; 102, gear; 103, second spring;

[0038] 120. inclined guide groove; 130. electric push rod; 140. push plate. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1 -Attached Figure 5 , further details of this application are given.

[0040] The embodiment of the present application discloses an automatic culture medium dispensing device.

[0041] Reference Figures 1 to 3 , an automatic culture medium dispensing device, comprising a frame 10, a culture dish 20, an upper clamping mechanism, a lower clamping mechanism, a translation mechanism, a lifting mechanism 30, a quantitative filling device 40, a receiving tube 50, a pushing member and an inclined guide groove 120, the culture dish 20 comprises a dish bottom 21 and a dish cover 22, and the dish cover 22 can be detachably buckled on the dish bottom 21. The upper clamping mechanism is arranged on the frame 10, and the lower clamping mechanism is arranged on the frame 10.

[0042] Reference Figure 4 and Figure 5The accommodating cylinder 50 is used for stacking and accommodating a plurality of empty culture dishes 20. The accommodating cylinder 50 comprises a cylinder body 51, a cylinder cover 52, a support plate 53 and a first elastic member. The cylinder body 51 is detachably arranged on the frame 10. The cylinder cover 52 is detachably connected to the cylinder body 51. The support plate 53 is slidably arranged in the cylinder body 51. The first elastic member is arranged on the cylinder body 51 and acts on the support plate 53. The first elastic member is used for providing an elastic force for pushing the support plate 53 to move toward the dish outlet 511. The first elastic member can be a first spring 54. More specifically, the two ends of the first spring 54 are respectively fixed to the support plate 53 and the inner bottom wall of the cylinder body 51.

[0043] The pusher is arranged on the frame 10, and is used to push the culture dish 20 in the accommodating cylinder 50 to the upper clamping mechanism and the lower clamping mechanism. The cylinder 51 is provided with a dish outlet 511 for pushing out the culture dish 20, and a through slot 512 for the pusher to pass through. The pusher includes an electric push rod 130 and a push plate 140. The electric push rod 130 is fixed on the frame 10. The push plate 140 is fixedly connected to the telescopic rod of the electric push rod 130. By controlling the telescopic rod of the electric push rod 130 to extend, the push plate 140 can be driven to move, so that the push plate 140 passes through the through slot 512 to horizontally push the culture dish 20 located at the uppermost layer inside the cylinder 51, and pushes the culture dish 20 from the dish outlet 511 and moves to the upper clamping mechanism and the lower clamping mechanism. When the culture dish 20 at the uppermost layer is pushed out, the culture dish 20 at the lower layer moves upward under the elastic force of the first spring 54 until it abuts against the lower surface of the cylinder cover 52.

[0044] Reference Figures 2 to 5 The upper clamping mechanism is used to clamp the dish cover 22. In an optional embodiment, the specific structure of the upper clamping mechanism and the working principle of clamping the dish cover 22 are as follows:

[0045] The upper clamping mechanism includes a guide tube 60 and a first horizontal limiter. The guide tube 60 is fixed on the frame 10. The end of the guide tube 60 is connected to the dish outlet 511 of the cylinder 51. The guide tube 60 is provided with a first limiter for limiting the dish cover 22 in the vertical direction. More specifically, the first limiter is a first protrusion 61 provided on the inner side wall of the guide tube 60. The peripheral wall of the dish cover 22 is provided with a first annular groove 221. The first protrusion 61 can be slidably engaged with the first annular groove 221.

[0046] The first horizontal limiter is arranged on the guide tube 60, and is used to limit the dish cover 22 in the horizontal direction. The first horizontal limiter can adopt the first push-pull electromagnet 70, and the number of the first push-pull electromagnets 70 can be set to four. When the dish cover 22 moves to the middle of the four first push-pull electromagnets 70, the push-pull rod of the first push-pull electromagnet 70 is controlled to extend, so that the dish cover 22 can be limited in the horizontal direction.

[0047] Reference Figures 2 to 5The lower clamping mechanism is used to clamp the dish bottom 21 , the bottom of the guide tube 60 is provided with an opening, and the lower clamping mechanism is arranged at the opening of the guide tube 60 .

[0048] The lower clamping mechanism includes a tray 80 and a second horizontal limiter. The inner wall of the tray 80 can be connected with the inner wall of the guide tube 60. The tray 80 is provided with a second limiter for limiting the dish bottom 21 vertically. More specifically, the second limiter is a second protrusion 81 arranged on the inner wall of the tray 80. The peripheral wall of the dish bottom 21 is provided with a second annular groove 211. The second protrusion 81 can be slidably engaged with the second annular groove 211.

[0049] The second horizontal limiter is disposed on the tray 80 and is used to limit the dish bottom 21 in the horizontal direction. The second horizontal limiter can adopt a second push-pull electromagnet 90 . The number of the second push-pull electromagnets 90 is set to four, and the limiting principle is the same as that of the first push-pull electromagnet 70 .

[0050] The inclined guide groove 120 is fixed on the frame 10 , and the high end of the inclined guide groove 120 is connected with the end of the guide tube 60 and the tray 80 .

[0051] Reference Figures 2 to 5 The translation mechanism is arranged on the frame 10, and the translation mechanism is connected to the tray 80 of the lower clamping mechanism; the lifting mechanism 30 is arranged on the frame 10, and the lifting mechanism 30 is connected to the translation mechanism, and the lifting mechanism 30 is used to drive the translation mechanism to rise and fall.

[0052] More specifically, the lifting mechanism 30 includes a lifting drive member and a lifting seat 31, the lifting drive member is connected to the lifting seat 31, the translation mechanism includes a translation drive member 100, a transverse guide rod 82 is provided on the tray 80, the transverse guide rod 82 is slidably penetrated through the lifting seat 31, the tray 80 is slidably arranged on the lifting seat 31 through the transverse guide rod 82, the translation drive member 100 is arranged on the lifting seat 31 and is connected to the tray 80.

[0053] Reference Figures 2 to 5 In an optional embodiment, the specific structures of the lifting mechanism 30 and the translation mechanism are as follows:

[0054] The lifting drive component includes a screw rod 32 and a lifting motor 33. A vertical guide rod 11 is provided on the frame 10. The lifting seat 31 is slidably sleeved on the vertical guide rod 11. The screw rod 32 is rotatably provided on the frame 10. The lifting motor 33 is fixed on the frame 10 and connected to the screw rod 32. A screw sleeve 34 is provided on the lifting seat 31. The screw rod 32 is screwed to the screw sleeve 34.

[0055] The translation driving member 100 includes a vertical rack 101 , a gear 102 and a second elastic member. A guide sleeve 311 is provided on the lifting seat 31 . The vertical rack 101 slides vertically through the guide sleeve 311 on the lifting seat 31 .

[0056] The second elastic member is arranged on the lifting seat 31 and acts on the vertical rack 101. The second elastic member is used for providing elastic force to push the vertical rack 101 to move downward. The second elastic member can adopt a second spring 103. More specifically, a baffle plate 1012 is provided on the vertical rack 101, a limit plate 312 is provided on the lifting seat 31, and a slide bar 1011 is provided on the vertical rack 101. The slide bar 1011 is slidably passed through the limit plate 312. The second spring 103 is sleeved on the slide bar 1011, and the two ends of the second spring 103 are respectively abutted against the limit plate 312 and the baffle plate 1012.

[0057] The gear 102 is rotatably disposed on the lifting seat 31 , and a transverse rack 83 is disposed on the tray 80 . The vertical rack 101 and the transverse rack 83 are respectively meshed with the gear 102 .

[0058] Reference Figure 1 and Figure 2 The quantitative filling device 40 is provided with a filling end for quantitatively filling the culture medium into the dish bottom 21, and the translation mechanism is used to drive the lower clamping mechanism to translate so that the dish bottom 21 moves below the filling end.

[0059] In an optional embodiment, the specific structure of the quantitative filling device 40 is as follows: the quantitative filling device 40 includes a filling head 41, a liquid storage tank 42 and a quantitative pump 43, the filling head 41 is fixed on the frame 10, the filling end is the filling head 41, the liquid storage tank 42 and the quantitative pump 43 are fixed on the frame 10, the liquid inlet end of the quantitative pump 43 is connected to the inside of the liquid storage tank 42 through a first pipe 44, and the liquid outlet end of the quantitative pump 43 is connected to the filling head 41 through a second pipe 45.

[0060] The working principle of quantitatively filling the culture medium into the culture dish 20 by the automatic culture medium dispensing device of this embodiment is as follows:

[0061] The culture dish 20 on the uppermost layer in the accommodating tube 50 is pushed into the guide tube 60 by the electric push rod 130 until the culture dish 20 moves onto the tray 80. At this time, the first protrusion 61 is engaged with the first annular groove 221, and the second protrusion 81 is engaged with the second annular groove 211. Then, the push-pull rod of the first push-pull electromagnet 70 is controlled to extend to limit the dish cover 22 in the horizontal direction. At the same time, the push-pull rod of the second push-pull electromagnet 90 is controlled to extend to limit the dish bottom 21 in the horizontal direction.

[0062] Then, the lifting motor 33 drives the screw rod 32 to rotate, driving the lifting seat 31, the tray 80 and the dish bottom 21 to move downward, and the dish bottom 21 and the dish cover 22 are separated. When the bottom end of the vertical rack 101 abuts against the bottom plate of the frame 10, the lifting seat 31 is controlled to continue to move downward, at which time the second spring 103 is compressed, and at the same time, under the interaction between the vertical rack 101 and the gear 102, the gear 102 rotates, and then under the interaction between the gear 102 and the horizontal rack 83, the tray 80 is driven to translate, and the dish bottom 21 is moved to below the filling head 41, and the culture medium in the liquid storage tank 42 is filled into the dish bottom 21 through the metering pump 43.

[0063] After the filling is completed, the lifting seat 31 is driven upward and reset by the lifting driving member, so that the dish bottom 21 and the dish cover 22 are covered again, and then the push-pull rods of the first push-pull electromagnet 70 and the second push-pull electromagnet 90 are controlled to retract. Then, the uppermost empty culture dish 20 in the receiving tube 50 is pushed into the guide tube 60 by the electric push rod 130, and the culture dish 20 that has been filled is pushed into the inclined guide groove 120 to complete the quantitative dispensing of the culture medium.

[0064] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic culture medium dispensing device, characterized in that: include: A culture dish (20), the culture dish (20) comprising a dish bottom (21) and a dish cover (22), the dish cover (22) being capable of being detachably buckled onto the dish bottom (21); An upper clamping mechanism, the upper clamping mechanism being used to clamp the dish cover (22); A lower clamping mechanism, the lower clamping mechanism is used to clamp the dish bottom (21); A translation mechanism connected to the lower clamping mechanism; A lifting mechanism (30), the lifting mechanism (30) being connected to the translation mechanism; The quantitative filling device (40) is provided with a filling end for quantitatively filling culture medium into the dish bottom (21), and the translation mechanism is used to drive the lower clamping mechanism to translate so that the dish bottom (21) moves below the filling end.

2. The automatic culture medium dispensing device according to claim 1, characterized in that: It also comprises a receiving cylinder (50) and a pushing member, wherein the receiving cylinder (50) is used to receive the culture dish (20), and the pushing member is used to push the culture dish (20) in the receiving cylinder (50) to the upper clamping mechanism and the lower clamping mechanism.

3. An automatic culture medium dispensing device according to claim 2, characterized in that: The accommodating cylinder (50) comprises a cylinder body (51), a cylinder cover (52), a support plate (53) and a first elastic member. The cylinder cover (52) is detachably connected to the cylinder body (51). The cylinder body (51) is provided with a dish outlet (511) for pushing out the culture dish (20) and a through groove (512) for the pushing member to pass through. The support plate (53) is slidably arranged in the cylinder body (51). The first elastic member is arranged on the cylinder body (51) and acts on the support plate (53). The first elastic member is used to provide an elastic force to push the support plate (53) to move toward the dish outlet (511).

4. The automatic culture medium dispensing device according to claim 1, characterized in that: The upper clamping mechanism comprises a guide tube (60) and a first horizontal limiter; the guide tube (60) is provided with a first limiter for limiting the dish cover (22) in the vertical direction; the first horizontal limiter is arranged on the guide tube (60); the first horizontal limiter is used to limit the dish cover (22) in the horizontal direction; an opening is arranged at the bottom of the guide tube (60); and the lower clamping mechanism is arranged at the opening of the guide tube (60).

5. The automatic culture medium dispensing device according to claim 4, characterized in that: The peripheral wall of the dish cover (22) is provided with a first annular groove (221); the first limiting portion is a first convex block (61) provided on the inner wall of the guide tube (60); the first convex block (61) can be slidably engaged with the first annular groove (221).

6. The automatic culture medium dispensing device according to claim 4, characterized in that: The lower clamping mechanism comprises a tray (80) and a second horizontal limiting member, the translation mechanism is connected to the tray (80), the inner wall of the tray (80) can be connected with the inner wall of the guide tube (60), the tray (80) is provided with a second limiting portion for limiting the dish bottom (21) in the vertical direction, the second horizontal limiting member is provided on the tray (80), and the second horizontal limiting member is used to limit the dish bottom (21) in the horizontal direction.

7. The automatic culture medium dispensing device according to claim 6, characterized in that: The peripheral wall of the dish bottom (21) is provided with a second annular groove (211); the second limiting portion is a second protrusion (81) provided on the inner wall of the tray (80); the second protrusion (81) can be slidably engaged with the second annular groove (211).

8. The automatic culture medium dispensing device according to claim 6, characterized in that: The lifting mechanism (30) comprises a lifting drive member and a lifting seat (31), the lifting drive member is connected to the lifting seat (31), the translation mechanism comprises a translation drive member (100), the tray (80) is slidably arranged on the lifting seat (31), and the translation drive member (100) is arranged on the lifting seat (31) and connected to the tray (80).

9. The automatic culture medium dispensing device according to claim 8, characterized in that: The translation driving member (100) comprises a vertical rack (101), a gear (102) and a second elastic member. The vertical rack (101) is slidably arranged on the lifting seat (31) in the vertical direction. The second elastic member is arranged on the lifting seat (31) and acts on the vertical rack (101). The second elastic member is used to provide an elastic force to push the vertical rack (101) to move downward. The gear (102) is rotatably arranged on the lifting seat (31). A transverse rack (83) is arranged on the tray (80). The vertical rack (101) and the transverse rack (83) are respectively meshed with the gear (102).

10. The automatic culture medium dispensing device according to claim 6, characterized in that: It also includes an inclined guide groove (120), the high end of the inclined guide groove (120) being connected to the end of the guide tube (60) and the tray (80).

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