Filtering device for microorganism collection

Abstract

The utility model provides a filter device for microorganism collection, which comprises a filter cartridge, a cartridge cover clamped and installed at the upper end of the filter cartridge and a filter cartridge arranged in the filter cartridge, a fixing mechanism is arranged between the cartridge cover and the filter cartridge, a movable pressing plug is arranged in the filter cartridge in a sliding manner, and the movable pressing plug is connected with the filter cartridge. The movable pressing plug is fixedly connected to the lower end of the push-pull rod, the movable pressing plug is arranged on the inner side wall of the filter cartridge in an attached mode, and a filter screen is arranged in the filter box. The push-pull rod drives the movable pressing plug to stretch out and draw back in the filter cartridge, so that the pressure intensity in the filter cartridge is increased, a culture solution can be quickly filtered through the filter screen, and the actual filtering efficiency is greatly improved; and a fixing mechanism is arranged, so that the cylinder cover and the filter cylinder can be conveniently detached, the interior of the device can be fully cleaned, and residues are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of microbial filtration, in particular to a filtering device for collecting microorganisms. Background Art

[0002] Microorganisms are a type of organisms with tiny bodies and simple structures. When conducting scientific research on microorganisms, there are many steps involved, including filtering impurities and bacteria in the culture medium to obtain microorganisms. For example, the utility model patent with the patent authorization announcement number CN215781878U and the authorization announcement date of 2022.02.11 discloses a filtering device for collecting microorganisms, which has the advantages of easy disassembly, convenient replacement, easy use, easy filtering and separation, simple operation, and easy promotion and use.

[0003] However, the prior art has the problem that it is inconvenient to disassemble and clean the filter screen and the interior of the device, residues are easily left inside the device, and in most cases, during the filtration process, the culture solution is placed on the filter screen for natural filtration, resulting in a slow actual filtration speed and low efficiency. Utility Model Content

[0004] The utility model aims to provide a filtering device for collecting microorganisms, so as to solve the problem in the prior art that it is inconvenient to disassemble and clean the filter screen and the interior of the device.

[0005] According to one purpose of the utility model, the utility model provides a filtering device for collecting microorganisms, including a filter cartridge, a cartridge cover snap-fitted onto the upper end of the filter cartridge, and a filter box arranged inside the filter cartridge, a fixing mechanism is provided between the cartridge cover and the filter cartridge, a movable pressure plug is slidably provided inside the filter cartridge, the movable pressure plug is fixedly connected to the lower end of a push-pull rod, the movable pressure plug is fitted onto the inner side wall of the filter cartridge, and a filter net is provided inside the filter box.

[0006] Furthermore, a valve is provided at the lower end of the filter cartridge.

[0007] Furthermore, the fixing mechanism is symmetrically arranged at the left and right ends of the cylinder cover;

[0008] Furthermore, a sealing ring is provided between the filter screen and the filter box.

[0009] Furthermore, the push-pull rod is slidably connected to the middle part of the cylinder cover, and the push-pull rod and the cylinder cover are limited by a latch.

[0010] Furthermore, the fixing mechanism includes an auxiliary plate fixedly connected to the left and right sides of the upper end of the cylinder cover, a movable bracket for limiting, a spring fixedly connected to the left and right sides of the upper end of the filter cylinder, and a fixed plate arranged between the auxiliary plate and the movable bracket.

[0011] Furthermore, the movable bracket is slidably connected to the auxiliary plate, and the movable bracket is snap-fittedly connected to the fixed plate.

[0012] Furthermore, a support plate is fixedly connected to the interior of the filter cylinder, the filter box is inserted into the middle of the support plate, and the filter box is connected to the filter screen via a fixing bolt.

[0013] Furthermore, support blocks are fixedly connected to the left and right ends of the inner wall of the filter cartridge, the middle part of the support block is rotatably connected to a limit plate, the limit plate and the limit column are connected by a slot, and the limit column is fixedly connected to the left and right sides of the upper end of the filter box respectively.

[0014] Furthermore, a connecting rod is fixedly connected to the upper end of the limiting plate, the connecting rod is rotatably connected to the upper end of the supporting block, and a torsion spring is provided at the connection between the connecting rod and the supporting block.

[0015] The technical solution of the utility model drives the movable pressure plug to expand and contract in the filter cartridge through a push-pull rod, thereby increasing the pressure inside the filter cartridge, allowing the culture fluid to be quickly filtered through the filter net, greatly improving the actual filtration efficiency; the setting of the fixing mechanism facilitates the disassembly between the cartridge cover and the filter cartridge, and the interior of the device can be fully cleaned to prevent residue. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of the internal structure of an embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the cylinder cover, the push-pull rod and the movable press plug in the embodiment of the utility model;

[0020] Figure 4 For the utility model embodiment Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0021] Figure 5 This is a schematic diagram of the connection structure of the movable bracket and the spring in the embodiment of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the filter cartridge, filter box and filter screen of the embodiment of the utility model;

[0023] Figure 7 It is a schematic structural diagram of the support block, the limiting plate, the limiting column and the connecting rod according to an embodiment of the utility model.

[0024] In the figure: 1. filter cartridge; 2. cartridge cover; 3. push-pull rod; 4. latch; 5. movable pressure plug; 6. fixing mechanism; 7. auxiliary plate; 8. movable bracket; 9. fixing plate; 10. spring; 11. filter box; 12. support plate; 13. sealing ring; 14. filter screen; 15. fixing bolt; 16. support block; 17. limit plate; 18. limit column; 19. connecting rod. DETAILED DESCRIPTION

[0025] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] Example 1

[0029] like Figure 1-Figure 7 As shown,

[0030] A filtering device for collecting microorganisms includes a filter cartridge 1, a cartridge cover 2 snap-fitted to the upper end of the filter cartridge 1, and a filter box 11 disposed inside the filter cartridge 1; wherein a valve is installed at the lower end of the filter cartridge 1, and the filtered substances can be discharged by opening the valve at the lower end of the filter cartridge 1.

[0031] A support plate 12 is fixedly connected to the inside of the filter cartridge 1. The support plate 12 is an annular structure. A through hole is provided in the middle of the support plate 12. A filter box 11 is inserted into the through hole in the middle of the support plate 12. A filter screen 14 is provided in the filter box 11, and a sealing ring 13 is provided between the filter box 11 and the filter screen 14. The filter box 11 and the filter screen 14 are limited by a fixing bolt 15, and the fixing bolt 15 and the filter screen 14 and the filter box 11 are all threadedly connected. The utility model is provided with a fixing bolt 15, a limiting plate 17 and a limiting column 18, so that the filter screen 14 can be easily disassembled, cleaned and replaced to prevent the filter screen from being blocked.

[0032] The left and right ends of the inner wall of the filter cartridge 1 are fixedly connected with support blocks 16, and the middle of the support block 16 is rotatably connected with a limit plate 17, and the limit plate 17 is connected with a limit column 18 by a slot; the limit column 18 is respectively fixedly connected to the left and right sides of the upper end of the filter box 11. The upper end of the limit plate 17 is fixedly connected with a connecting rod 19, and the connecting rod 19 is rotatably connected to the upper end of the support block 16, and a torsion spring is provided at the connection between the connecting rod 19 and the support block 16.

[0033] A movable pressure plug 5 is slidably connected inside the filter cartridge 1. The movable pressure plug 5 is fixedly connected to the lower end of the push-pull rod 3. The movable pressure plug 5 is fitted on the inner wall of the filter cartridge 1, and the movable pressure plug 5 is driven by the push-pull rod 3 to form a telescopic structure in the filter cartridge 1; the push-pull rod 3 is slidably connected to the middle part of the cartridge cover 2, and the push-pull rod 3 and the cartridge cover 2 are limited by a latch 4, and the latch 4 is plugged into the cartridge cover 2 and the push-pull rod 3, respectively.

[0034] The utility model is provided with a push-pull rod 3 and a movable pressure plug 5. The movable pressure plug 5 is closely arranged on the inner side of the filter cartridge 1. The push-pull rod 3 drives the movable pressure plug 5 to extend and retract in the filter cartridge 1, thereby increasing the pressure inside the filter cartridge 1, so that the culture fluid can be quickly filtered through the filter net 14, thereby improving the actual filtering efficiency.

[0035] The fixing mechanism 6 is symmetrically arranged at the left and right ends of the cylinder cover 2, and the fixing mechanism 6 is used to limit the position between the cylinder cover 2 and the filter cylinder 1, and the fixing mechanism 6 drives the cylinder cover 2 to form a disassembly structure at the upper end of the filter cylinder 1. The fixing mechanism 6 includes an auxiliary plate 7 fixedly connected to the left and right sides of the upper end of the cylinder cover 2, a movable bracket 8 for limiting the position, a spring 10 fixedly connected to the left and right sides of the upper end of the filter cylinder 1, and a fixing plate 9 arranged between the auxiliary plate 7 and the movable bracket 8. A sliding structure is formed between the movable bracket 8 and the auxiliary plate 7, and the movable bracket 8 and the fixing plate 9 are connected by a snap-fitting manner.

[0036] The utility model is provided with a fixing mechanism, through the setting of the fixing mechanism, it is convenient to disassemble and assemble the cylinder cover and the filter cylinder, so it is convenient to clean the inside of the device and prevent residue.

[0037] When the utility model microorganism collection filtering device is used:

[0038] First, the filtered microbial culture liquid is added to the filter box 11, and the culture liquid is filtered through the filter screen 14 provided in the filter box 11, and then the valve at the lower end of the filter cartridge 1 is opened to discharge the filtered substances;

[0039] Then, the cylinder cover 2 is engaged with the upper end of the filter cylinder 1, and the cylinder cover 2 and the filter cylinder 1 are fixed by the fixing mechanism 6. By pulling the movable bracket 8, the movable bracket 8 slides with the auxiliary plate 7, and the movable bracket 8 squeezes the spring 10, so that the spring 10 undergoes elastic deformation. Then, the cylinder cover 2 is fitted and arranged on the upper end of the filter cylinder 1, and the slot between the movable bracket 8 and the spring 10 is connected. After the engagement is completed, the movable bracket 8 is directly released. At this time, the spring 10 restores its elastic deformation, driving the movable bracket 8 to slide with the auxiliary plate 7. At this time, the movable bracket 8 is engaged with the spring 10, so as to facilitate the limiting of the cylinder cover 2 and the filter cylinder 1.

[0040] The latch 4 is pulled out to release the limit between the push-pull rod 3 and the cylinder cover 2. Then, the push-pull rod 3 is pulled up and down, and the push-pull rod 3 and the cylinder cover 2 slide up and down. At the same time, the cylinder cover 2 drives the movable pressure plug 5 to be placed in the filter cylinder 1. The movable pressure plug 5 is arranged on the inner wall of the filter cylinder 1. The movable pressure plug 5 is extended and retracted inside the filter cylinder 1 to increase the pressure inside the filter cylinder 1, so that the culture solution is quickly pressed downward for filtering, which greatly improves the actual filtering efficiency.

[0041] After the filtration process is completed, the fixing mechanism 6 is released from limiting the position between the cartridge cover 2 and the filter cartridge 1 , and then the cartridge cover 2 drives the movable pressing plug 5 to separate from the filter cartridge 1 .

[0042] Finally, by rotating the connecting rod 19, the connecting rod 19 rotates at the upper end of the support block 16, and the torsion spring at the connection between the connecting rod 19 and the support block 16 is elastically deformed, and at the same time, the connecting rod 19 drives the limiting plate 17 to rotate, so that the limiting plate 17 is disengaged from the limiting column 18, thereby loosening the limit of the filter cartridge 1 on the filter box 11, and then pulling the filter box 11 upward, the filter box 11 is pulled out of the filter cartridge 1, and then by rotating the fixing bolt 15, the fixing bolt 15 and the filter screen 14 as well as the fixing bolt 15 and the filter box 11 are all threadedly connected, the fixing bolt 15 loosens the limit between the filter screen 14 and the filter box 11, thereby facilitating the disassembly, cleaning and replacement of the filter screen 14 to prevent blockage, and then the interior of the entire device can be fully cleaned to prevent residue.

[0043] The utility model filter device for collecting microorganisms drives the movable pressure plug 5 to expand and contract in the filter cartridge 1 through the push-pull rod 3 during filtering, thereby increasing the pressure inside the filter cartridge 1, so that the culture fluid can be quickly filtered through the filter screen 14, which greatly improves the actual filtering efficiency. Combined with the setting of the fixing mechanism, it is convenient to disassemble the cartridge cover 2 and the filter cartridge 1, and through the setting of the fixing bolt 15, the limiting plate 17 and the limiting column 18, it is convenient to take out the filter box 11, and the interior of the device can be fully cleaned to prevent residues. At the same time, the filter screen can be disassembled, cleaned and replaced to prevent the filter screen from being blocked.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A filtering device for collecting microorganisms, characterized in that: It includes a filter cartridge, a cartridge cover snap-fitted onto the upper end of the filter cartridge, and a filter box arranged inside the filter cartridge, a fixing mechanism is provided between the cartridge cover and the filter cartridge, a movable pressure plug is slidably provided inside the filter cartridge, the movable pressure plug is fixedly connected to the lower end of the push-pull rod, the movable pressure plug is fitted onto the inner side wall of the filter cartridge, and a filter net is provided inside the filter box.

2. The microorganism collection filter device according to claim 1, characterized in that: A valve is arranged at the lower end of the filter cartridge.

3. The microorganism collecting filter device according to claim 1, characterized in that: The fixing mechanism is symmetrically arranged at the left and right ends of the cylinder cover.

4. The microorganism collecting filter device according to claim 1, characterized in that: A sealing ring is arranged between the filter screen and the filter box.

5. The microorganism collecting filter device according to claim 1, characterized in that: The push-pull rod is slidably connected to the middle part of the cylinder cover, and the push-pull rod and the cylinder cover are limited by a latch.

6. The microorganism collecting filter device according to claim 1, characterized in that: The fixing mechanism includes an auxiliary plate fixedly connected to the left and right sides of the upper end of the cylinder cover, a movable bracket for limiting, a spring fixedly connected to the left and right sides of the upper end of the filter cylinder, and a fixing plate arranged between the auxiliary plate and the movable bracket.

7. The microorganism collecting filter device according to claim 6, characterized in that: The movable bracket is slidably connected to the auxiliary plate, and the movable bracket is snap-fittedly connected to the fixed plate.

8. The microorganism collecting filter device according to claim 1, characterized in that: A support plate is fixedly connected inside the filter cylinder, the filter box is plugged into the middle of the support plate, and the filter box is connected to the filter screen via a fixing bolt.

9. The microorganism collecting filter device according to claim 1, characterized in that: The left and right ends of the inner wall of the filter cartridge are fixedly connected with support blocks, the middle part of the support block is rotatably connected with a limit plate, the limit plate and the limit column are connected by a slot, and the limit column is fixedly connected to the left and right sides of the upper end of the filter box respectively.

10. The microorganism collecting filter device according to claim 9, characterized in that: The upper end of the limit plate is fixedly connected with a connecting rod, the connecting rod is rotatably connected to the upper end of the support block, and a torsion spring is arranged at the connection between the connecting rod and the support block.

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