CN220676936U

CN220676936U - Filtering structure, test tube assembly and test tube rack

Info

Publication number: CN220676936U
Application number: CN202322341519.3U
Authority: CN
Inventors: 申艳鹏; 潘建华; 张静文
Original assignee: Guangzhou Kingmed Diagnostics Central Co Ltd
Current assignee: Guangzhou Kingmed Diagnostics Central Co Ltd
Priority date: 2023-08-29
Filing date: 2023-08-29
Publication date: 2024-03-29
Anticipated expiration: 2033-08-29

Abstract

The utility model discloses a filtering structure, a test tube assembly and a test tube rack, which belong to the technical field of experimental equipment, wherein the test tube assembly comprises a mounting piece, a filter screen and a connecting piece, the mounting piece is provided with a liquid inlet, the liquid inlet penetrates through the other side of the mounting piece from one side of the mounting piece, and the liquid inlet is used for being communicated with an opening of a test tube; the filter screen is arranged on the mounting piece and is positioned at the liquid inlet; the connecting piece is arranged at the bottom of the mounting piece and is positioned below the liquid inlet, the connecting piece is of a cone-shaped structure, a mounting groove is formed in the connecting piece, one end of the mounting groove is gradually enlarged from the top to the bottom of the mounting groove, and the mounting groove is used for accommodating the test tube; when in use, the cell suspension is filtered by the filter screen and then poured into the test tube to realize the filtration; because the connecting piece is the cone-shaped structure, the test tube openings of the calibers with different sizes can be abutted with the inner wall of the connecting piece, so that the filter structure is suitable for the test tubes with different calibers, and the structure is simple and the operation is convenient.

Description

Filtering structure, test tube assembly and test tube rack

Technical Field

The utility model belongs to the technical field of experimental equipment, and particularly relates to a filtering structure, a test tube assembly and a test tube rack.

Background

Before flow cell detection, impurity filtering treatment is needed to be carried out on the cell suspension, a filter screen is generally adopted for filtering at present, the filter screen is held by hand to be suspended above a test tube, and then the cell suspension is poured into the test tube through the filter screen; in case of introducing a plurality of test tubes, the above-mentioned filtering steps need to be repeated; the whole operation process is complicated in flow, the workload of detection personnel is increased, the use is inconvenient, and the sample pollution risk exists.

Although, chinese patent No. 202123011472.1 discloses a filtering device for test tube and test tube, the filtering structure can be installed on the test tube, so as to reduce the steps of handling the filter screen, and simplify the operation flow. But when using, the big or small bore of every test tube on the test bench is different, and filtration's installing port size can't be adjusted, leads to filtration unable adaptation in the test tube of different bore.

Disclosure of Invention

The utility model aims to provide a filtering structure, a test tube assembly and a test tube rack, which are suitable for test tubes with different sizes and calibers, and have the advantages of simple structure and convenient operation.

The technical scheme is as follows:

a filter structure, comprising:

the mounting piece is provided with a liquid inlet, the liquid inlet penetrates through the other side of the mounting piece from one side of the mounting piece, and the liquid inlet is used for being communicated with an opening of the test tube;

the filter screen is arranged on the mounting piece and is positioned at the liquid inlet;

the connecting piece, the connecting piece install in the bottom of mounting, and be located the below of inlet, the connecting piece is centrum form structure, form the mounting groove in the connecting piece, the one end in mounting groove is followed the top of mounting groove is crescent to the bottom, the mounting groove is used for holding at least a portion of test tube.

In one embodiment, the filtering structure is provided with a flow guiding piece, the flow guiding piece is arranged at the bottom of the mounting piece, the flow guiding piece is provided with a flow guiding opening and a liquid outlet, and the flow guiding opening is communicated with the liquid outlet and is arranged oppositely; the liquid outlet of the flow guiding piece is used for being communicated with the opening of the test tube; the guide piece is at least partially positioned in the mounting groove.

In one embodiment, the flow guiding member is in a cone-shaped structure, the inner diameter of the flow guiding member is smaller than the inner diameter of the connecting member, the flow guiding opening is positioned at the minimum end of the flow guiding member, and the liquid outlet is positioned at the maximum end of the flow guiding member.

In one embodiment, the mounting member includes a first fixing plate and a second fixing plate, the first fixing plate is connected with the second fixing plate, the filter screen is located between the first fixing plate and the second fixing plate, and the liquid inlet penetrates through the bottom of the first fixing plate from the top of the second fixing plate.

In one embodiment, the mounting piece is provided with a clamping part, the clamping part is mounted on the side wall of the first fixing plate or the second fixing plate, the clamping part is in a bent shape, the clamping part is provided with a clamping block, and a clamping groove is formed between the clamping block and the side wall of the first fixing plate or the second fixing plate;

when the clamping part is arranged on the first fixed plate, the bending direction of the clamping part is upward; when the clamping part is arranged on the second fixing plate, the bending direction of the clamping part faces downwards.

In one embodiment, the filter structure further comprises a funnel, the funnel is of an inverted cone structure, the smallest end of the funnel is mounted on the mounting piece, a trough is formed in the funnel, and the trough is communicated with the liquid inlet.

In one embodiment, at least a portion of the filter structure is made of polypropylene material.

The utility model also provides a test tube assembly comprising a test tube and the filtering structure, wherein the filtering structure is arranged at the top of the test tube.

The utility model also provides a test tube rack, which comprises a bottom plate, a shell, a supporting plate and the test tube assembly, wherein the shell is arranged on the bottom plate, the supporting plate is arranged on the inner side of the shell, the supporting plate is provided with a containing hole, and at least part of the test tube assembly is positioned in the containing hole.

In one embodiment, the support plates are provided with a plurality of support plates, the support plates are arranged in parallel, and the support plates are distributed along the height direction of the shell.

The technical scheme provided by the utility model has the following advantages and effects:

1. the filter screen is arranged on the mounting piece and positioned at the liquid inlet, the connecting piece is arranged at the bottom of the mounting piece and positioned below the liquid inlet, and the connecting piece is used for being connected with the opening of the test tube; a mounting groove is formed in the connecting piece, one end of the mounting groove gradually increases from the top to the bottom of the mounting groove, and the mounting groove is used for accommodating an opening of the test tube so that the test tube is abutted against the inner wall of the connecting piece; when in use, the cell suspension is filtered by the filter screen and then poured into the test tube to realize the filtration; because the connecting piece is the cone-shaped structure, the test tube openings of the calibers with different sizes can be abutted with the inner wall of the connecting piece, so that the filter structure is suitable for the test tubes with different calibers, and the structure is simple and the operation is convenient.

2. The filtering structure is suitable for test tubes with different calibers, and the inner wall of the connecting piece is abutted with the opening of the test tube, so that the sealing performance between the test tube and the connecting piece is poor, and the risk of sample pollution is avoided; the bottom at the installed part is installed to the adoption water conservancy diversion spare, and water conservancy diversion spare is located the mounting groove at least partially, can set up the water conservancy diversion mouth of water conservancy diversion spare in the connecting piece, makes cell suspension flow into the test tube along water conservancy diversion mouth, the inner wall and the liquid outlet of water conservancy diversion spare through the water conservancy diversion spare, avoids cell suspension flow along the inner wall flow direction test tube of connecting piece in, has avoided cell suspension to flow out of the test tube, reduces the risk of sample pollution.

3. The inner diameter of the flow guiding piece is smaller than that of the connecting piece, so that the flow guiding piece is positioned in the connecting piece, and cell suspension is further prevented from splashing to the inner wall of the connecting piece; the flow guiding piece is cone-shaped and is adapted to the shape of the connecting piece, and meanwhile, the liquid outlet opening of the flow guiding piece can be enlarged, and the liquid outlet flow of the flow guiding piece is increased.

4. The filter screen is arranged between the first fixing plate and the second fixing plate, so that the stability of the filter screen and the mounting piece is improved, and the filter screen can be respectively adhered to the first fixing plate and the second fixing plate in a glue adhesion mode during mounting.

5. When the cell suspension is used, the cell suspension is poured into a plurality of test tubes for different experimental purposes, and in order to reduce the steps of moving the filter structures, the corresponding filter structures are arranged on each test tube, so that the stability of placing the filter structures on the test tubes is improved; the clamping part is arranged on the side wall of the first fixing plate or the second fixing plate, the clamping part is bent, the clamping part is provided with a clamping block, and a clamping groove is formed between the clamping block and the side wall of the first fixing plate or the second fixing plate; when the clamping part is arranged on the first fixed plate, the bending direction of the clamping part faces upwards; when the clamping part is arranged on the second fixing plate, the bending direction of the clamping part faces downwards. By the arrangement, the clamping blocks of the adjacent filtering structures can be clamped with the clamping grooves, so that the connection stability between the filtering structures is improved; meanwhile, the sample adding area can be filtered, and the clamping block and the clamping groove are separated from each other in samples which do not need to be filtered, so that the corresponding filtering structure is taken down, and the waste phenomenon of the filtering structure is effectively reduced; in addition, the filtering structure forms linear combination and sheet combination in a clamping mode, so that a large amount of sample adding and filtering operations are performed.

6. This filtration still has the funnel, and the funnel also is back taper structure, installs the minimum end of funnel on the installed part, and this funnel has the effect of supplementary application of sample rifle pouring sample, increases the opening size of inlet, allows the rifle head of application of sample rifle to have certain deviation in the top of inlet, improves the accuracy and the efficiency of application of sample, avoids the application of sample in-process, and the sample can't get into in the test tube from the inlet.

7. The filter structure made of polypropylene is lighter, more portable and more economical. The filtering structure made of polypropylene has better chemical stability and temperature resistance, can bear sterilization temperature up to 121 ℃, is softer and more deformable, is used for being matched with a disposable plastic test tube, and saves cost.

8. The filtering structure is applied to the test tube assembly, so that samples are filtered and then are filled into the test tube.

9. The filter structure is applied to the test tube rack, so that the test tube rack can carry out mass sample loading and filtering operation, and simultaneously, the installation characteristics of the filter structure are utilized, and the single filter structure and the plurality of filter structures are combined for use so as to be suitable for sample loading operation on the test tube rack.

Drawings

FIG. 1 is a schematic diagram of a filter structure according to an embodiment of the utility model.

Fig. 2 is a schematic diagram of a filtering structure according to an embodiment of the utility model.

Fig. 3 is a cross-sectional view of a filter structure in accordance with an embodiment of the present utility model.

Fig. 4 is a second cross-sectional view of a filter structure in an embodiment of the utility model.

Fig. 5 is a schematic structural view of a test tube assembly according to another embodiment of the present utility model.

Fig. 6 is a schematic structural view of a test tube rack according to still another embodiment of the present utility model.

Reference numerals illustrate:

10. a test tube assembly; 1. a test tube; 2. a filtering structure; 20. a mounting member; 201. a liquid inlet; 21. a liquid inlet; 22. a clamping part; 221. a clamping groove; 222. a clamping block; 23. a first fixing plate; 24. a filter screen; 25. a second fixing plate; 26. a funnel; 261. a trough; 27. a connecting piece; 28. a flow guide; 281. a diversion port; 282. a liquid outlet; 29. a mounting groove; 100. a test tube rack; 101. a bottom plate; 102. a support plate; 103. a housing.

Detailed Description

In order that the utility model may be readily understood, a more particular description of specific embodiments thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings.

As used herein, the terms "first and second …" are used merely to distinguish between names and not to represent a particular number or order unless otherwise specified or defined.

The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items, unless specifically stated or otherwise defined.

The term "fixed" or "connected" as used herein may be directly fixed or connected to an element, or indirectly fixed or connected to an element.

As shown in fig. 1 to 6, a filtering structure 2 comprises a mounting member 20, a filter screen 24 and a connecting member 27, wherein the mounting member 20 is provided with a liquid inlet 201, the liquid inlet 201 penetrates through the other side of the mounting member 20 from one side of the mounting member 20, and the liquid inlet 201 is used for communicating with an opening of a test tube 1; the filter screen 24 is mounted on the mounting piece 20 and is positioned at the liquid inlet 201; the connecting piece 27 is installed in the bottom of installing piece 20 to be located the below of inlet 201, connecting piece 27 is the centrum form structure, forms mounting groove 29 in the connecting piece 27, and the one end of mounting groove 29 gets gradually big from the top to the bottom of mounting groove 29, and mounting groove 29 is used for holding at least a portion of test tube 1. By mounting the filter screen 24 on the mounting member 20 at the liquid inlet 201, and mounting the connector 27 on the bottom of the mounting member 20 below the liquid inlet 201, the connector 27 is used for connecting with the opening of the test tube 1; a mounting groove 29 is formed in the connecting piece 27, one end of the mounting groove 29 gradually increases from the top to the bottom of the mounting groove 29, and the mounting groove 29 is used for accommodating an opening of the test tube 1 so that the test tube 1 is abutted against the inner wall of the connecting piece 27; when in use, the cell suspension is filtered by the filter screen 24 and then poured into the test tube 1 to realize filtration; because the connecting piece 27 is the cone-shaped structure, the opening of the test tube 1 with different sizes of calibers can be abutted with the inner wall of the connecting piece 27, so that the filter structure 2 is suitable for the test tubes 1 with different sizes of calibers, and the structure is simple and convenient to operate.

As shown in fig. 1 and 3, the filtering structure 2 has a flow guiding member 28, the flow guiding member 28 is mounted at the bottom of the mounting member 20, the flow guiding member 28 has a flow guiding opening 281 and a liquid outlet 282, and the flow guiding opening 281 is communicated with the liquid outlet 282 and is arranged opposite to the liquid outlet 282; the diversion port 281 is communicated with the liquid inlet 201, and the liquid outlet 282 of the diversion piece 28 is used for communicating with the opening of the test tube 1; the deflector 28 is at least partially located in the mounting groove 29. Since the filter structure 2 is adapted to test tubes 1 with different calibers, the inner wall of the connector 27 is abutted against the opening of the test tube 1, so that the tightness between the test tube 1 and the connector 27 is poor, and the risk of sample pollution is avoided; adopt water conservancy diversion spare 28 to install in the bottom of installed part 20, and water conservancy diversion spare 28 are located mounting groove 29 at least partially, can set up the water conservancy diversion mouth 281 of water conservancy diversion spare 28 in connecting piece 27, make cell suspension flow into test tube 1 along water conservancy diversion mouth 281, the inner wall of water conservancy diversion spare 28 and liquid outlet 282 through water conservancy diversion spare 28, avoid cell suspension flow into test tube 1 along the inner wall of connecting piece 27, avoided cell suspension to flow out of test tube 1, reduce the risk of sample pollution.

As shown in fig. 3, the flow guiding member 28 has a cone-shaped structure, the inner diameter of the flow guiding member 28 is smaller than the inner diameter of the connecting member 27, the flow guiding opening 281 is located at the smallest end of the flow guiding member 28, and the liquid outlet 282 is located at the largest end of the flow guiding member 28. The inner diameter of the flow guide piece 28 is smaller than that of the connecting piece 27, so that the flow guide piece 28 is positioned in the connecting piece 27, and cell suspension is further prevented from splashing onto the inner wall of the connecting piece 27; the guide member 28 is cone-shaped and is adapted to the shape of the connecting member 27, and the size of the liquid outlet 282 of the guide member 28 can be enlarged to increase the flow rate of the liquid outlet 282 of the guide member 28.

As shown in fig. 1 to 4, the mounting member 20 includes a first fixing plate 23 and a second fixing plate 25, the first fixing plate 23 is connected to the second fixing plate 25, the filter screen 24 is located between the first fixing plate 23 and the second fixing plate 25, and the liquid inlet 201 penetrates through the bottom of the first fixing plate 23 from the top of the second fixing plate 25. The filter screen 24 is arranged between the first fixing plate 23 and the second fixing plate 25, so that the stability of the filter screen 24 and the mounting piece 20 is improved, and the filter screen 24 can be respectively adhered and fixed with the first fixing plate 23 and the second fixing plate 25 in a glue adhesion mode during installation.

In addition, when in use, the cell suspension is poured into a plurality of test tubes 1 for different experimental purposes, and in order to reduce the steps of moving the filter structures 2, a corresponding filter structure 2 is arranged on each test tube 1, so as to increase the stability of placing the filter structure 2 on the test tube 1; the mounting member 20 has a clamping portion 22, the clamping portion 22 is bent, the clamping portion 22 has a clamping block 222, and a clamping groove 221 is formed between the clamping block 222 and a side wall of the first fixing plate 23 or the second fixing plate 25; when the clamping part 22 is mounted on the first fixing plate 23, the bending direction of the clamping part 22 is upward; when the clamping part 22 is mounted on the second fixing plate 25, the bending direction of the clamping part 22 is downward; by this arrangement, the clamping blocks 222 of the adjacent filter structures 2 can be clamped with the clamping grooves 221.

As shown in fig. 3 and 4, the clamping parts 22 on the left and right sides of the mounting piece 20 are mounted on the first fixing plate 23, the clamping parts 22 on the upper and lower sides of the mounting piece 20 are mounted on the second fixing plate 25, when two adjacent filter structures 2 are spliced, one of the filter structures 2 rotates 90 degrees, so that the clamping blocks 222 of the first fixing plate 23 correspond to the clamping grooves 221 of the second fixing plate 25, and the clamping blocks 222 are clamped with the clamping grooves 221, thereby improving the connection stability between the filter structures 2; meanwhile, the sample adding area can be filtered, and the clamping block 222 is separated from the clamping groove 221 in a sample which does not need to be filtered, so that the corresponding filtering structure 2 is taken down, and the waste phenomenon of the filtering structure 2 is effectively reduced; in addition, the filtering structure 2 forms linear combination and sheet combination by clamping, so that a large amount of sample adding and filtering operations are performed.

As shown in fig. 3, the filtering structure 2 further has a funnel 26, the funnel 26 has an inverted cone structure, the smallest end of the funnel 26 is mounted on the mounting member 20, a trough 261 is formed in the funnel 26, and the trough 261 is communicated with the liquid inlet 201. The minimum end of the funnel 26 is arranged on the mounting piece 20, the funnel 26 has the function of assisting the sample adding gun in pouring samples, the opening size of the liquid inlet 201 is increased, the gun head of the sample adding gun is properly allowed to have a certain deviation above the liquid inlet 201, the accuracy and the efficiency of sample adding are improved, and the situation that samples cannot enter the test tube 1 from the liquid inlet 201 in the sample adding process is avoided.

Furthermore, at least part of the filter structure 2 is made of polypropylene material. The filter structure 2 made of polypropylene is lighter, easier to carry and more economical and practical. The filtering structure 2 made of polypropylene has better chemical stability and temperature resistance, can bear sterilization temperature up to 121 ℃, is softer and more deformable, is used for being matched with a disposable plastic test tube, and saves cost.

As shown in fig. 5, the present utility model further proposes a test tube assembly 10, which includes a test tube 1 and a filtering structure 2 as described above, wherein the filtering structure 2 is mounted on top of the test tube 1. The filtering structure 2 is applied to the test tube assembly 10, samples are filtered and then are filled into the test tubes 1, and the filtering structure 2 is suitable for the test tubes 1 with different calibers.

As shown in fig. 6, the present utility model further proposes a test tube rack 100, which includes a bottom plate 101, a housing 103, a support plate 102, and a test tube assembly 10 as described above, wherein the housing 103 is mounted on the bottom plate 101, the support plate 102 is mounted on the inner side of the housing 103, and the support plate 102 has a receiving hole, and at least a portion of the test tube assembly 10 is located in the receiving hole. The supporting plate 102 is used for supporting the test tube 1, enabling the test tube 1 to be stably placed on the test tube rack 100, applying the filtering structure 2 to the test tube rack 100, enabling the test tube rack 100 to perform mass sample loading filtering operation, and simultaneously utilizing the installation characteristic of the filtering structure 2, and combining the single filtering structure 2 with the multiple filtering structures 2 to be suitable for sample loading operation on the test tube rack 100.

As shown in fig. 6, the supporting plates 102 are provided with a plurality of supporting plates 102, the supporting plates 102 are arranged in parallel, the supporting plates 102 are distributed along the height direction of the casing 103, and the supporting plates 102 are used for simultaneously supporting the test tube 1, so that the test tube 1 is kept in a vertical state in the accommodating hole, and the stability of the test tube assembly 10 in the test tube rack 100 is improved.

The above examples are also not an exhaustive list based on the utility model, and there may be a number of other embodiments not listed. Any substitutions and modifications made without departing from the spirit of the utility model are within the scope of the utility model.

Claims

1. Filtration, its characterized in that includes:

2. The filter structure of claim 1, wherein the filter structure has a deflector mounted to a bottom of the mounting member, the deflector being at least partially located in the mounting slot; the flow guiding piece is provided with a flow guiding port and a liquid outlet, and the flow guiding port is communicated with the liquid outlet and is oppositely arranged; the liquid outlet of the flow guiding piece is used for being communicated with the opening of the test tube.

3. The filter structure of claim 2, wherein the flow guide member has a cone-like structure, the inner diameter of the flow guide member is smaller than the inner diameter of the connecting member, the flow guide opening is positioned at the smallest end of the flow guide member, and the liquid outlet is positioned at the largest end of the flow guide member.

4. A filter arrangement as claimed in any one of claims 1 to 3 wherein the mounting member comprises a first and a second fixed plate, the first and second fixed plates being connected, the filter screen being located between the first and second fixed plates, the liquid inlet passing through the bottom of the first fixed plate from the top of the second fixed plate.

5. The filter structure of claim 4, wherein the mounting member has a clamping portion, the clamping portion is bent, the clamping portion has a clamping block, and a clamping groove is formed between the clamping block and a side wall of the first fixing plate or the second fixing plate;

6. The filter structure of claim 5, further comprising a funnel, wherein the funnel is of inverted cone configuration, the smallest end of the funnel is mounted to the mounting member, a trough is formed in the funnel, and the trough is in communication with the liquid inlet.

7. The filter structure of claim 6, wherein at least a portion of the filter structure is made of polypropylene material.

8. A test tube assembly comprising a test tube and the filter structure of claim 1 mounted on top of the test tube.

9. Test-tube rack, its characterized in that includes bottom plate, shell, backup pad and the test tube subassembly of claim 8, the shell is installed on the bottom plate, the backup pad install in the inboard of shell, just the backup pad has the accommodation hole, the at least part of test tube subassembly is located in the accommodation hole.

10. The test tube rack of claim 9, wherein the support plates are provided with a plurality of support plates, the plurality of support plates are arranged in parallel, and the plurality of support plates are distributed along the height direction of the housing.