Anti-pollution device of culture dish for freeze-drying

Abstract

The anti-pollution device comprises a protective cover, the protective cover comprises a buckle body part and a supporting part, a protective film is arranged at the top of the buckle body part, a handle is arranged on the outer end face of the supporting part, a button is arranged at the top of the supporting part, and the button is connected with the handle through a pop-up assembly. According to the freeze dryer, when a plurality of materials need to be freeze-dried once, the protective cover is buckled on the upper part of the freeze-drying culture dish, so that cross contamination among the plurality of materials can be effectively prevented, and the space utilization of the freeze dryer is improved; a protective film is arranged at the top of the buckle body part of the protective cover, so that water insulation and ventilation can be realized while pollution is prevented, and the freeze-drying state is not influenced; a handle is arranged on the outer end face of the supporting part of the protective cover, a button is arranged on the top, the handle is controlled to pop up through a pop-up assembly, and the culture dish is conveniently taken through the handle after freeze-drying to observe the freeze-drying condition.

Description

Technical Field

[0001] The utility model relates to the technical field of freeze-drying production equipment, in particular to an anti-pollution device for a freeze-drying culture dish. Background Art

[0002] Vacuum freeze drying technology is a new drying method that freezes water-containing materials into solids and uses the sublimation properties of water under low temperature and low pressure conditions to dehydrate the materials at low temperature to achieve drying. Since vacuum freeze drying technology is carried out in a low temperature and low oxygen environment, most biological reactions are stagnant, and there is no liquid water in the treatment process. The water directly sublimates in a solid state, so that the original structure and shape of the material are protected to the greatest extent, and finally a high-quality dried product with both appearance and internal quality is obtained. It is currently widely used in food, medicine, agriculture and other fields.

[0003] In the freeze-drying preparation process, existing laboratories need to prepare multiple groups of different samples under the same experimental conditions for control tests. Therefore, the culture dishes containing the samples need to be placed side by side in the test chamber for processing. There is a risk of cross-contamination between the samples, which will affect the freeze-drying efficiency and experimental results. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems and provide an anti-pollution device for a culture dish used for freeze drying.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions, including:

[0006] A protective cover, comprising a buckle body and a support portion, and the protective cover is used to buckle on the upper part of the culture dish;

[0007] A protective film is arranged on the top of the buckle body, a handle is arranged on the outer end surface of the support part, a button is arranged on the top of the support part, the button is connected to the handle through a pop-up component, and the button controls the handle to pop out through the pop-up component.

[0008] As a further description of the above technical solution, the height of the protective cover is 3-5 cm, and the diameter of the protective cover is 10-40 cm.

[0009] As a further description of the above technical solution, the thickness of the protective cover is 1-2 cm, and the material of the protective cover is silicone.

[0010] As a further description of the above technical solution, the support portion is provided with an ejection slot, and the handle cover is arranged on the ejection slot.

[0011] As a further description of the above technical solution, the pop-up assembly includes a squeezing rod, the top of the squeezing rod is connected to the button, and the bottom of the squeezing rod is in contact with the handle.

[0012] As a further description of the above technical solution, a squeezing portion is provided at the bottom of the squeezing rod, the squeezing portion is in contact with the handle, and the squeezing rod pushes the handle to move outward through the squeezing portion.

[0013] As a further description of the above technical solution, a first push rod, a second push rod and an elastic member are arranged inside the extrusion rod, the first push rod is arranged above the second push rod, and the elastic member is arranged below the second push rod.

[0014] As a further description of the above technical solution, a clamping portion is provided at the bottom of the second push rod, and the elastic member is sleeved on the clamping portion.

[0015] As a further description of the above technical solution, the first push rod and the second push rod are provided with a slide groove, and the slide groove is in a curved spiral shape. The first push rod and the second push rod can move axially and rotate radially through the slide groove.

[0016] As a further description of the above technical solution, the handle includes a first semicircular portion and a second semicircular portion, and the first semicircular portion and the second semicircular portion are connected by an elastic connecting strip.

[0017] The beneficial effects of the utility model are as follows:

[0018] 1. In the present invention, when multiple materials need to be freeze-dried at one time, the protective cover is buckled on the upper part of the freeze-drying culture dish, which can effectively prevent cross contamination between multiple materials and improve the space utilization of the freeze dryer;

[0019] 2. In the utility model, a protective film is provided on the top of the buckle body of the protective cover, which can prevent pollution and be water-proof and breathable without affecting the freeze-drying state;

[0020] 3. In the utility model, a handle is provided on the outer end surface of the supporting part of the protective cover, and a button is provided on the top. The handle is controlled to pop out by a pop-up assembly, so that the culture dish can be extracted through the handle after freeze-drying to observe the freeze-drying condition.

[0021] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model anti-pollution device;

[0023] Figure 2This is a schematic diagram of the structure of the button, pop-up assembly and handle of the utility model. Figure 1 ;

[0024] Figure 3 This is a schematic diagram of the structure of the button, pop-up assembly and handle of the utility model. Figure 2 ;

[0025] Figure 4 It is a structural schematic diagram of the first push rod and the second push rod of the utility model.

[0026] Reference numerals:

[0027] 1. Protective cover; 11. Buckle body; 12. Support part; 13. Pop-up slot; 2. Protective film; 3. Handle; 31. First semicircular part; 32. Second semicircular part; 33. Elastic connecting strip; 4. Button; 5. Pop-up assembly; 51. Extrusion rod; 511. Extrusion part; 52. First push rod; 53. Second push rod; 531. Clamping part; 532. Slide slot; 54. Elastic member. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0029] Embodiment 1:

[0030] like Figure 1-Figure 2 As shown, in one embodiment, a contamination prevention device for a culture dish for freeze drying comprises:

[0031] The protective cover 1 includes a buckle body 11 and a support part 12, and the protective cover 1 is used to buckle on the upper part of the culture dish. Among them, a protective film 2 is arranged on the top of the buckle body 11, a handle 3 is arranged on the outer end surface of the support part 12, and a button 4 is arranged on the top of the support part 12. The button 4 is connected to the handle 3 through a pop-up component 5, and the button 4 controls the handle 3 to pop out through the pop-up component 5. Specifically, the protective cover 1 is cylindrical as a whole, with a height of 3-5cm, a diameter of 10-40cm, and a thickness of 1-2cm. According to the size of the culture dish used, it can be adapted to culture dishes of multiple diameters such as 12cm, 170cm, and 220cm; it is made of silica gel, which has good elasticity and weather resistance, and can withstand extremely low temperatures during the freeze-drying process without hardening or embrittlement.

[0032] Furthermore, the protective film 2 is made of waterproof and breathable films such as polytetrafluoroethylene (PTFE), polyurethane (PU) and thermoplastic polyurethane (TPU), which can prevent pollution while being waterproof and breathable without affecting the freeze-dried state.

[0033] like Figure 1-Figure 2As shown, in this embodiment, the pop-up assembly 5 includes a squeeze rod 51, the top of which is connected to the button 4, and the bottom of which is in contact with the handle 3, so that the button 4 can realize the pop-up of the handle 3 through the squeeze rod 51. Specifically, a squeeze portion 511 is provided at the bottom of the squeeze rod 51, and the squeeze portion 511 is in contact with the handle 3. The squeeze rod 51 pushes the handle 3 to move to the outside of the protective cover 1 through the squeeze portion 511.

[0034] like Figure 1-Figure 2 As shown, in this embodiment, the support portion 12 is provided with an ejection slot 13, and the handle 3 is sleeved on the ejection slot 13. Specifically, the handle 3 includes a first semicircular portion 31 and a second semicircular portion 32, and the first semicircular portion 31 and the second semicircular portion 32 are connected by an elastic connecting strip 33 to ensure that the handle 3 is gathered inward again after the button 4 rebounds.

[0035] Embodiment 2:

[0036] like Figure 3-Figure 4 As shown, in this embodiment, a first push rod 52, a second push rod 53 and an elastic member 54 are disposed inside the extrusion rod 51. The first push rod 52 is disposed above the second push rod 53, and the elastic member 54 is disposed below the second push rod 53. Specifically, the elastic member 54 is a spring, and a clamping portion 531 is disposed at the bottom of the second push rod 53, and the elastic member 54 is sleeved on the clamping portion 531.

[0037] Furthermore, the first push rod 52 and the second push rod 53 are provided with a slide groove 532, and the slide groove 532 is in a curved spiral shape, and the first push rod 52 and the second push rod 53 can move axially and rotate radially through the slide groove 532. When the button 4 is pressed, the first push rod 52 will rotate an angle through the action of the elastic member 54 to realize the pop-up of the handle 3, and the handle 3 can be retracted by pressing the button 4 again.

[0038] Working principle: When multiple materials need to be freeze-dried at one time, the protective cover 1 is buckled on the upper part of the freeze-drying culture dish. A protective film 2 is provided on the top of the buckle body 11 of the protective cover 1, which has good ventilation, prevents contamination, and facilitates the sublimation of moisture in the material in the freeze-drying dish; after the freeze-drying is completed, press the button 4 to make the semicircular invisible handle 3 pop out, so that the handle 3 can be extracted after freeze-drying.

[0039] Through the above technical solution, the present application can effectively prevent cross contamination between multiple materials, and improve the space utilization of the freeze dryer, allowing more materials to be freeze-dried at the same time.

[0040] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A contamination prevention device for a freeze-drying culture dish, characterized in that: include: A protective cover (1), the protective cover (1) comprising a buckle body (11) and a support portion (12), the protective cover (1) being used for buckling onto the upper part of a culture dish; A protective film (2) is arranged on the top of the buckle body (11), a handle (3) is arranged on the outer end surface of the support portion (12), a button (4) is arranged on the top of the support portion (12), the button (4) is connected to the handle (3) via a pop-up component (5), and the button (4) controls the handle (3) to pop out via the pop-up component (5).

2. The anti-contamination device for a freeze-drying culture dish according to claim 1, characterized in that: The height of the protective cover (1) is 3-5 cm, and the diameter of the protective cover (1) is 10-40 cm.

3. The anti-contamination device for a freeze-drying culture dish according to claim 1, characterized in that: The thickness of the protective cover (1) is 1-2 cm, and the material of the protective cover (1) is silicone.

4. The anti-contamination device for a freeze-drying culture dish according to claim 1, characterized in that: The support portion (12) is provided with an ejection slot (13), and the handle (3) is sleeved on the ejection slot (13).

5. The anti-contamination device for a freeze-drying culture dish according to claim 1, characterized in that: The pop-up assembly (5) comprises a squeezing rod (51), the top of the squeezing rod (51) is connected to the button (4), and the bottom of the squeezing rod (51) is in contact with the handle (3).

6. The anti-contamination device for a freeze-drying culture dish according to claim 5, characterized in that: The bottom of the squeezing rod (51) is provided with a squeezing portion (511), the squeezing portion (511) is in abutment with the handle (3), and the squeezing rod (51) pushes the handle (3) to move outwards via the squeezing portion (511).

7. The anti-contamination device for a freeze-drying culture dish according to claim 5, characterized in that: A first push rod (52), a second push rod (53) and an elastic member (54) are arranged inside the extrusion rod (51); the first push rod (52) is arranged above the second push rod (53), and the elastic member (54) is arranged below the second push rod (53).

8. The anti-contamination device for a freeze-drying culture dish according to claim 7, characterized in that: The second push rod (53) is provided with a clamping portion (531) at the bottom, and the elastic member (54) is sleeved on the clamping portion (531).

9. The anti-contamination device for a freeze-drying culture dish according to claim 7, characterized in that: The first push rod (52) and the second push rod (53) are provided with a slide groove (532), and the slide groove (532) is in a curved spiral shape. The first push rod (52) and the second push rod (53) can move axially and rotate radially through the slide groove (532).

10. The anti-contamination device for a freeze-drying culture dish according to claim 1, characterized in that: The handle (3) comprises a first semicircular portion (31) and a second semicircular portion (32), and the first semicircular portion (31) and the second semicircular portion (32) are connected via an elastic connecting strip (33).

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