Homogenization device for microbiological detection

Abstract

The utility model discloses a kind of homogenizing devices for microbiological detection, it is related to microbiological detection technical field, including base, the base rotationally connected with shaft, the drive assembly for driving the rotation of shaft is installed in the base, the shaft top end is fixedly connected with rotating frame, the rotating frame one side is fixedly connected with bearing ring, and counterweight structure is provided at the other side, further including rotary bucket, the rotary bucket is rotationally connected in bearing ring, the drive structure for driving rotary bucket rotation along its own axis is installed on the rotating frame, the first filter cartridge and second filter cartridge are coaxially installed in order from inside to outside in the rotary bucket interior.The utility model utilizes centrifugal force of material and liquid in rotary bucket to realize efficient homogenization treatment to material, and the upper opening of multilayer filter cartridge and rotary bucket, to adjust the speed of rotary bucket rotation and revolution according to the condition of material appropriately.

Description

Technical Field

[0001] This utility model relates to the field of microbial detection technology, specifically to a homogenization device for microbial detection. Background Technology

[0002] In the process of microbial detection, in order to improve the uniformity of microbial survival on the substrate, the substrate needs to be homogenized.

[0003] Chinese Patent CN210856117U discloses a homogenizing device for microbial detection, comprising a cylinder, a filter plate, a motor, a rotating shaft, and a booster pump. The cylinder is mounted on a support, with a bearing on the inner wall of the cylinder. A feed hopper and a water inlet pipe are located at the top of the cylinder, and a discharge pipe is located at one end of the cylinder. The filter plate is vertically mounted inside the cylinder and has filter holes. The motor is located at one end of the cylinder and has a power cord. The rotating shaft is located inside the cylinder, with one end connected to the motor and the other end passing through the filter plate and inserted into the bearing. A stirring rod is mounted on the rotating shaft. The booster pump is located at the top of the cylinder and has a power cord.

[0004] Regarding the aforementioned technologies, existing homogenizing devices for microbial detection improve material homogenization efficiency and perform multi-stage filtration by setting up multi-stage filter plates inside the mixing tank. However, when the stirring mechanism inside the tank rotates, it cannot guide the flow of liquid within the tank, causing the liquid to not necessarily flow along the direction of the multi-stage filter plates. Consequently, it cannot efficiently filter the liquid inside the tank. Furthermore, due to the relatively complex filtration structure inside the tank, it is not easy to open the tank to clean the filter residue trapped by the filter screen. Prolonged use can easily lead to problems such as filter plate clogging. In summary, existing homogenizing devices for microbial detection are not suitable for efficient homogenization of materials. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide a homogenizing device for microbial detection, so as to solve the technical problem that existing homogenizing devices for microbial detection are not easy to perform efficient homogenization of materials.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a homogenizing device for microbial detection, comprising a base, a rotating shaft rotatably connected to the base, a drive assembly for driving the rotating shaft to rotate installed inside the base, a rotating frame fixedly connected to the top of the rotating shaft, a bearing ring fixedly connected to one side of the rotating frame, and a counterweight structure provided on the other side, and a rotating barrel rotatably connected to the bearing ring, a drive structure for driving the rotating barrel to rotate along its own axis installed on the rotating frame, a first filter cartridge and a second filter cartridge coaxially installed from the inside to the outside of the rotating barrel, and a frustum, the frustum being located at the bottom of the rotating barrel, the bottom of the first filter cartridge being located at the top of the frustum, the bottom of the second filter cartridge being located at the bottom of the frustum, and an outlet pipe being provided below the rotating barrel between its own inner wall and the outer wall of the second filter cartridge.

[0007] By adopting the above technical solution, the centrifugal force of the material and liquid inside the rotating drum is used to achieve efficient homogenization of the material. Furthermore, the multi-layer filter cylinder and the opening at the top of the rotating drum allow for observation of the material inside the rotating drum during the homogenization process. This enables the rotation and revolution speeds of the rotating drum to be adjusted appropriately based on the material's condition, further improving the homogenization efficiency of the material.

[0008] The present invention is further configured such that a fixing ring is fixedly connected to the outer wall of the rotating barrel, and the fixing ring is rotatably connected to the bearing ring.

[0009] Preferably, the rotating barrel is rotatably connected to the bearing ring using a fixed ring.

[0010] The present invention is further configured such that a toothed ring is fixedly connected to the outer wall of the rotating barrel, a drive box is installed at the top of the rotating frame, and a drive gear that meshes with the toothed ring is rotatably connected inside the drive box.

[0011] Preferably, the rotating barrel is driven to rotate by a drive gear inside the drive box.

[0012] The present invention is further configured such that a plurality of snap-fit ​​grooves are provided at intervals at one end of the rotating frame away from the bearing ring, the snap-fit ​​grooves are used to accommodate snap-fit ​​blocks, and the snap-fit ​​blocks are fixedly connected to both sides of the counterweight block.

[0013] Preferably, the counterweight is fixed to the rotating frame using the snap-fit ​​blocks on both sides of the counterweight.

[0014] The present invention is further configured such that the snap-fit ​​block is connected to the middle position of the counterweight block.

[0015] Preferably, excessive shaking of the counterweight is avoided when the rotating frame rotates.

[0016] The present invention is further configured such that a vertical support is fixedly connected to the bearing ring, and a rotating rod is rotatably connected to the top of the support. The rotating rod is provided with scrapers at positions corresponding to the first filter cylinder and the second filter cylinder, and the scrapers are used to scrape off the filter residue on the inner wall of the first filter cylinder and the second filter cylinder.

[0017] Preferably, a scraper is used to remove filter residue during the rotation of the rotating drum, ensuring the filtration efficiency of the first and second filter cartridges.

[0018] The present invention is further configured such that the scraper is slidably connected to the rotating rod.

[0019] Preferably, when it is necessary to remove the first filter cartridge and the second filter cartridge, the scraper can be slidable and the rotation angle of the rotating rod can be adjusted to separate the first filter cartridge and the second filter cartridge.

[0020] The present invention is further provided that the top end of the bracket is provided with a flange for supporting the rotating rod in a horizontal state.

[0021] Preferably, the rotating rod is supported by a flange to keep it in a horizontal state.

[0022] The present invention is further provided with lifting lugs on the edges of the top ends of the first filter cartridge and the second filter cartridge.

[0023] Preferably, the first filter cartridge and the second filter cartridge can be easily lifted using lifting lugs.

[0024] The present invention is further configured such that the downward pressure on the top end of the rotating shaft along the circumferential direction is the same.

[0025] As a preferred option, it helps to ensure the stability of the rotating shaft during rotation.

[0026] In summary, the present invention has the following main advantages:

[0027] 1. This utility model uses coaxial filter cylinders arranged sequentially from the inside to the outside of a rotating drum that can rotate on its own axis and revolve around a central point. It utilizes the centrifugal force of the material and liquid inside the rotating drum to achieve efficient homogenization of the material. Furthermore, the multi-layer filter cylinders and the opening at the top of the rotating drum allow observation of the material inside the rotating drum during the homogenization process. This enables the rotation and revolution speeds of the rotating drum to be adjusted appropriately based on the material's condition, further improving the homogenization efficiency of the material.

[0028] 2. This utility model connects a support to the bearing ring, and uses scrapers on the support to contact the inner wall of each filter cartridge. During the rotation of the rotating barrel, the filter residue adhering to the inner wall of the filter cartridge is automatically scraped off, which effectively improves the filtration capacity of the filter cartridge during long-term use. At the same time, due to the opening on the top surface of the rotating barrel, the liquid in the rotating barrel can be easily emptied and each filter cartridge can be removed after the homogenization work is completed, and the waste residue in the rotating barrel can be cleaned. Attached Figure Description

[0029] Figure 1 This is a perspective view of the present utility model;

[0030] Figure 2 This is another perspective view of the present invention;

[0031] Figure 3 This is an exploded view of the present invention;

[0032] Figure 4 This is a perspective view of the bearing ring of this utility model;

[0033] Figure 5 This is an exploded view of the counterweight of this utility model;

[0034] Figure 6 This is a perspective view of the rotating barrel of this utility model.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Base; 2. Rotating shaft; 3. Rotating frame; 301. Snap-fit ​​groove; 4. Bearing ring; 5. Rotating barrel; 501. Fixing ring; 502. Gear ring; 503. Frustum; 504. Outlet pipe; 6. Drive box; 601. Drive gear; 7. Counterweight; 701. Snap-fit ​​block; 8. Bracket; 9. Rotating rod; 10. Scraper; 11. First filter cartridge; 12. Second filter cartridge. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0038] The embodiments of this utility model will be described below based on its overall structure.

[0039] First embodiment:

[0040] A homogenizing device for microbial detection, please refer to [link / reference]. Figure 1-6The device includes a base 1, a rotating shaft 2 rotatably connected to the base 1, and a drive assembly for driving the rotating shaft 2 to rotate installed inside the base 1. Specifically, the drive assembly can be a motor. In the prior art, the scheme for driving the rotating shaft to rotate is relatively conventional, so it will not be described in detail here. A rotating frame 3 is fixedly connected to the top of the rotating shaft 2. A bearing ring 4 is fixedly connected to one side of the rotating frame 3, and a counterweight structure is set on the other side. The downward pressure on the top of the rotating shaft 2 along the circumferential direction is the same, which helps to ensure the stability of the rotating shaft 2 when it rotates.

[0041] It also includes a rotating barrel 5, which is rotatably connected to the bearing ring 4. The rotating frame 3 is equipped with a drive structure for driving the rotating barrel 5 to rotate along its own axis. Inside the rotating barrel 5, a first filter cylinder 11 and a second filter cylinder 12 are coaxially installed from the inside to the outside. Specifically, the filter screen diameter of the first filter cylinder 11 is larger than that of the second filter cylinder 12. In other undisclosed embodiments, a scheme with two or more filter cylinders can be adopted according to the actual material homogenization requirements.

[0042] It also includes a truncated cone 503, which is located at the bottom of the rotating barrel 5. The bottom of the first filter cylinder 11 is located at the top of the truncated cone 503, and the bottom of the second filter cylinder 12 is located at the bottom of the truncated cone 503. An outlet pipe 504 is provided below the inner wall of the rotating barrel 5 between the inner wall of the rotating barrel 5 and the outer wall of the second filter cylinder 12. After the homogenization work is completed, the truncated cone 503 facilitates the rapid discharge of liquid in the rotating barrel 5. At the same time, it also facilitates the cleaning of filter residue in the rotating barrel 5 after the first filter cylinder 11 and the second filter cylinder 12 are removed.

[0043] For details regarding the above embodiments, please refer to [link / reference]. Figure 1-4 A fixed ring 501 is fixedly connected to the outer wall of the rotating barrel 5. The fixed ring 501 is rotatably connected to the bearing ring 4. The rotating barrel 5 is rotatably connected to the bearing ring 4 by the fixed ring 501. Furthermore, in order to ensure that the rotating barrel 5 can rotate smoothly, a roller bearing can also be installed between the bearing ring 4 and the fixed ring 501.

[0044] Specifically, a gear ring 502 is fixedly connected to the outer wall of the rotating barrel 5, and a drive box 6 is installed at the top of the rotating frame 3. A drive gear 601 that meshes with the gear ring 502 is rotatably connected inside the drive box 6. A motor for rotating the drive gear 601 is installed inside the drive box 6, and the rotating barrel 5 is driven to rotate by the drive gear 601 inside the drive box 6.

[0045] Furthermore, a vertical support 8 is fixedly connected to the bearing ring 4, and a rotating rod 9 is rotatably connected to the top of the support 8. The rotating rod 9 is provided with scraper blades 10 at the positions corresponding to the first filter cylinder 11 and the second filter cylinder 12. The scraper blades 10 are used to scrape off the filter residue on the inner wall of the first filter cylinder 11 and the second filter cylinder 12. The scraper blades 10 scrape off the filter residue during the rotation of the rotating barrel 5, thus ensuring the filtration efficiency of the first filter cylinder 11 and the second filter cylinder 12.

[0046] Furthermore, the scraper 10 is slidably connected to the rotating rod 9. When it is necessary to remove the first filter cylinder 11 and the second filter cylinder 12, the scraper 10 can be slid and the rotation angle of the rotating rod 9 can be adjusted to separate the first filter cylinder 11 and the second filter cylinder 12. Specifically, when it is necessary to remove the first filter cylinder 11 and the second filter cylinder 12, the two scrapers 10 are first slid upwards, and then the rotating rod 9 can be rotated to make the scraper 10 separate the first filter cylinder 11 and the second filter cylinder 12.

[0047] Second embodiment:

[0048] A homogenizing device for microbial detection, please refer to [link / reference]. Figure 1-6 Based on the first embodiment, the difference from the first embodiment is that a plurality of snap-fit ​​grooves 301 are provided at intervals at one end of the rotating frame 3 away from the bearing ring 4. The snap-fit ​​grooves 301 are used to accommodate snap-fit ​​blocks 701. The snap-fit ​​blocks 701 are fixedly connected to both sides of the counterweight block 7. The counterweight block 7 is fixed to the rotating frame 3 by using the snap-fit ​​blocks 701 on both sides of the counterweight block 7.

[0049] Specifically, the snap-fit ​​block 701 is connected to the middle position of the counterweight block 7 to prevent the counterweight block 7 from shaking excessively when the rotating frame 3 rotates. After adding material into the rotating barrel 5, an appropriate number of counterweight blocks 7 are selected and installed on the rotating frame 3. The weight above the rotating shaft 2 is then balanced by increasing or decreasing the amount of liquid in the rotating barrel 5. In other undisclosed embodiments, a pressure sensor can be set between the top of the rotating shaft 2 and the rotating frame 3 to more conveniently adjust the amount of liquid in the rotating barrel 5 and more accurately balance the pressure on the rotating shaft 2.

[0050] Furthermore, the top of the bracket 8 is provided with a flange for supporting the rotating rod 9 in a horizontal state. The flange supports the rotating rod 9 to keep it in a horizontal state. When the rotating rod 9 is in a horizontal state, the scraper 10 is in a vertical state and can contact the inner wall of the first filter cartridge 11 or the second filter cartridge 12.

[0051] Furthermore, the top edges of the first filter cartridge 11 and the second filter cartridge 12 are provided with lifting lugs, which can be used to easily lift the first filter cartridge 11 and the second filter cartridge 12. The top of the counterweight 7 is also provided with a lifting hole, which makes it easy to add or remove the counterweight 7 on the rotating frame 3.

[0052] When performing homogenization of materials, this utility model can be used as follows:

[0053] Material is fed into the first filter cylinder 11. The rotating shaft 2 and the drive gear 601 work simultaneously, driving the rotating frame 3 and the rotating drum 5 to rotate. The rotating drum 5 revolves around the rotating shaft 2 and rotates on its own axis. The material inside the rotating drum 5 moves towards the drum wall under the action of centrifugal force. The first filter cylinder 11 and the second filter cylinder 12 filter filter residues of different diameters, thus homogenizing the material. At the same time, due to the revolution of the rotating drum 5, the material inside the rotating drum 5 is shaken, further improving the homogenization efficiency. When the rotating drum 5 rotates, the scraper 10 can scrape off the filter residues adhering to the inner walls of the first filter cylinder 11 and the second filter cylinder 12. The scraped-off filter residues sink due to their own gravity, effectively ensuring the filtration capacity of the first filter cylinder 11 and the second filter cylinder 12, and ensuring that the rotating drum can perform material homogenization for a long time.

[0054] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A homogenization device for microbiological detection, characterized in that, include: The base (1) is rotatably connected to a rotating shaft (2). A drive assembly for driving the rotating shaft (2) to rotate is installed inside the base (1). A rotating frame (3) is fixedly connected to the top of the rotating shaft (2). A bearing ring (4) is fixedly connected to one side of the rotating frame (3), and a counterweight structure is provided on the other side. A rotating barrel (5) is rotatably connected to a bearing ring (4). A driving structure for driving the rotating barrel (5) to rotate along its own axis is installed on the rotating frame (3). The first filter cylinder (11) and the second filter cylinder (12) are coaxially installed inside the rotating barrel (5) from the inside to the outside. A truncated cone (503) is located at the bottom of the rotating barrel (5). The bottom of the first filter cylinder (11) is located at the top of the truncated cone (503), and the bottom of the second filter cylinder (12) is located at the bottom of the truncated cone (503). An outlet pipe (504) is provided below the rotating barrel (5) between its inner wall and the outer wall of the second filter cylinder (12).

2. The homogenization device for microorganism detection according to claim 1, characterized in that: The outer wall of the rotating barrel (5) is fixedly connected to a fixing ring (501), which is rotatably connected to the bearing ring (4).

3. The homogenization device for microbiological detection according to claim 2, characterized in that: A toothed ring (502) is fixedly connected to the outer wall of the rotating barrel (5), and a drive box (6) is installed at the top of the rotating frame (3). A drive gear (601) that meshes with the toothed ring (502) is rotatably connected inside the drive box (6).

4. The homogenization device for microorganism detection according to claim 1, characterized in that: The rotating frame (3) has multiple locking slots (301) spaced apart at one end away from the bearing ring (4). The locking slots (301) are used to accommodate locking blocks (701), and the locking blocks (701) are fixedly connected to both sides of the counterweight (7).

5. The homogenization device for microbiological detection according to claim 4, characterized in that: The snap-fit ​​block (701) is connected to the middle position of the counterweight block (7).

6. The homogenization device for microbiological detection according to claim 1, characterized in that: A vertical support (8) is fixedly connected to the bearing ring (4). A rotating rod (9) is rotatably connected to the top of the support (8). A scraper (10) is provided on the rotating rod (9) at the positions corresponding to the first filter cylinder (11) and the second filter cylinder (12). The scraper (10) is used to scrape off the filter residue on the inner wall of the first filter cylinder (11) and the second filter cylinder (12).

7. The homogenization device for microbiological detection according to claim 6, characterized in that: The scraper (10) is slidably connected to the rotating rod (9).

8. The homogenization device for microbiological detection according to claim 6, characterized in that: The top of the bracket (8) is provided with a flange for supporting the rotating rod (9) in a horizontal state.

9. The homogenizing device for microbial detection according to claim 1, characterized in that: The top edges of the first filter cartridge (11) and the second filter cartridge (12) are provided with lifting lugs.

10. The homogenizing apparatus for microbial detection according to claim 1, characterized in that: The downward pressure on the top of the rotating shaft (2) along the circumferential direction is the same.

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