A two-stage separation and screening device for medical microorganisms

Abstract

This utility model discloses a two-stage separation and screening device for medical microorganisms, including a tank, a discharge pipe, a tank cover, a support, a drive wheel, a rotating base, a two-stage filter cartridge, and a pressure cylinder structure. When the tank cover is fixed to the top of the tank, the limiting sleeve aligns with the column. Then, by holding and rotating the drive rod, the connecting rod rotates, causing the cam to rotate. When the cam rotates, it pushes the pressure block downwards, causing the slide rod to slide downwards. At this time, the limiting sleeve slides downwards along with the cam and engages with the column, thereby positioning the column. This allows the upper end of the two-stage filter cartridge to be positioned and pressed during rotation, preventing vibration of the filter cartridge at high speeds and improving its stability during rotation.

Description

Technical Field

[0001] This utility model relates to the field of medical microbiology technology, specifically a two-stage separation and screening device for medical microorganisms. Background Technology

[0002] Medical microbiology mainly studies the morphology, structure, metabolic activities, genetics and variation, pathogenic mechanisms, anti-infective immunity, laboratory diagnosis and specific prevention of pathogenic microorganisms related to human diseases. A two-stage separation and screening device can separate different microorganisms under the action of centrifugal force.

[0003] Existing patent CN206599561U discloses a two-stage separation and screening device for medical microorganisms, including an outer cylinder I, a support I installed at the bottom of the outer cylinder I, a motor installed inside the support I, an outer cylinder cover installed at the top of the outer cylinder I, a first centrifuge cylinder installed inside the outer cylinder I, a centrifuge cylinder cover installed at the top of the first centrifuge cylinder, and a second centrifuge cylinder installed inside the first centrifuge cylinder.

[0004] The aforementioned patents or prior art have the following problems:

[0005] In existing dual-stage separation and screening devices, it is not convenient to position and press the top of the dual-stage filter cartridge after installation, which may cause the dual-stage filter cartridge to vibrate under high-speed rotation. Utility Model Content

[0006] The purpose of this invention is to provide a two-stage separation and screening device for medical microorganisms to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a medical microbial dual-stage separation and screening device, comprising a tank, a discharge pipe provided on the side of the tank, a tank cover provided on the top of the tank, a support provided on the bottom of the tank, a drive wheel provided on the bottom of the tank, a rotating base provided inside the tank, a dual-stage filter cartridge connected to the rotating base, a pressure cylinder structure provided on the tank cover, the pressure cylinder structure comprising a mounting base, a mounting base provided on the top of the tank cover, a connecting rod provided inside the mounting base, a drive rod fixed to one end of the connecting rod, a cam provided on the other end, a positioning hole provided on the cam, a positioning rod provided on the upper end of the mounting base, a sliding rod provided inside the mounting base, a pressure block fixed to the upper end of the sliding rod, a spring provided on the surface of the sliding rod, a limit sleeve provided at the bottom of the sliding rod, and a column provided on the top of the dual-stage filter cartridge.

[0008] Preferably, the surface of the column is provided with a limiting platform.

[0009] Preferably, the diameter of the limiting sleeve is the same as the diameter of the limiting platform.

[0010] Preferably, the limiting sleeve has a rotating sleeve inside, and the rotating sleeve is rotatably connected to the limiting sleeve, with the lower inner wall of the rotating sleeve being inclined.

[0011] Preferably, the bottom of the rotating sleeve protrudes beyond the bottom of the limiting sleeve.

[0012] Preferably, one side surface of the cam is planar.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] When the can lid is fixed to the top of the can, the limiting sleeve will align with the column. Then, hold and rotate the drive rod to make the connecting rod rotate, which in turn drives the cam to rotate. When the cam rotates, it will push the pressure block downward, causing the slide rod to slide downward. At this time, the limiting sleeve will slide downward together and engage with the column, thereby positioning the column. This allows the upper end of the dual-stage filter cartridge to be positioned and pressed when the dual-stage filter cartridge rotates, preventing vibration of the dual-stage filter cartridge under high-speed rotation and improving the stability of the dual-stage filter cartridge during rotation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the tank body of this utility model;

[0017] Figure 3 This is a front view cross-sectional structural diagram of the tank body of this utility model;

[0018] Figure 4 This is a front view cross-sectional structural diagram of the pressure cylinder structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the limiting sleeve of this utility model.

[0020] In the diagram: Tank body-1, discharge pipe-2, tank cover-3, bracket-4, drive wheel-5, rotating base-6, dual-stage filter cartridge-7, pressure cylinder structure-8, mounting base-81, connecting rod-82, drive rod-83, cam-84, positioning hole-85, slide rod-86, pressure block-87, spring-88, limit sleeve-89, column-810, limit platform-811, rotating sleeve-891. Detailed Implementation

[0021] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0022] Please see Figure 1 , Figure 2 and Figure 3 This utility model provides a medical microbial dual-stage separation and screening device, including a tank body 1, a discharge pipe 2 mounted on the side of the tank body 1, the discharge pipe 2 extending into the bottom of the tank body 1, a tank cover 3 mounted on the top of the tank body 1, a bracket 4 mounted on the bottom of the tank body 1 by bolts, a drive wheel 5 rotatably connected to the bottom of the tank body 1, the drive wheel 5 being connected to a matching drive device, a rotating base 6 being provided inside the tank body 1, and the rotating base 6 being connected to the drive wheel 5. When the matching drive device drives the drive wheel 5 to rotate, it will rotate the base 6 together, thereby driving the dual-stage filter cartridge 7 installed and fixed on the rotating base 6 to rotate at high speed. Under the high-speed rotation of the dual-stage filter cartridge 7, the medical microorganisms inside will undergo dual-stage separation and screening under the action of centrifugal force. A pressure cylinder structure 8 is provided on the tank cover 3.

[0023] Please see Figure 1 , Figure 3 , Figure 4 and Figure 5 This utility model provides a medical microbial two-stage separation and screening device. The pressure cylinder structure 8 includes a mounting base 81, which is fixed to the middle of the top surface of the can lid 3 by bolts. The upper end of the mounting base 81 is equipped with a rotatably connected connecting rod 82. The rear end of the connecting rod 82 is fixed with a drive rod 83, and the front end is equipped with a cam 84. One side surface of the cam 84 is flat so that when the drive rod 83 is rotated, it will drive the connecting rod 82 and cause the cam 84 to rotate.

[0024] The cam 84 has a positioning hole 85. The upper middle part of the mounting base 81 is equipped with a positioning rod 851 that is set in a vertical position. The positioning rod 851 is slidably connected to the upper end of the mounting base 81 in a vertical position. When the positioning hole 85 and the positioning rod 851 are aligned when the cam 84 rotates, the positioning rod 851 will slide into the positioning hole 85 and limit and fix the cam 84.

[0025] The lower end of the mounting base 81 is fitted with a vertically slidable slide rod 86. The upper end of the slide rod 86 is fixed with a pressure block 87 by bolts. A spring 88 is fitted on the surface of the slide rod 86. One end of the spring 88 is fixed to the inner wall of the mounting base 81, and the other end is fixed to the bottom end face of the pressure block 87. A limit sleeve 89 is fixed to the bottom of the slide rod 86 by bolts. A column 810 is provided on the top of the dual-stage filter cartridge 7. The limit sleeve 89 can be connected to the column 810. A limit platform 811 is provided on the surface of the column 810. The diameter of the limit sleeve 89 is the same as the diameter of the limit platform 811. When the limit sleeve 89 is connected to the column 810, it will press the limit platform 811, press the column 810, and press the dual-stage filter cartridge 7, thereby improving the stability of the dual-stage filter cartridge 7 when rotating.

[0026] The limiting sleeve 89 is provided with a rotating sleeve 891 inside, and the rotating sleeve 891 is rotatably connected to the limiting sleeve 89. The lower inner wall of the rotating sleeve 891 is inclined, which is conducive to the docking of the limiting sleeve 89 and the column 810. The bottom of the rotating sleeve 891 protrudes from the bottom of the limiting sleeve 89, which can prevent the limiting platform 811 from rubbing against the limiting sleeve 89 when the limiting platform 811 rotates.

[0027] When the can lid 3 is fixed to the top of the can body 1, the limiting sleeve 89 will align with the column 810. Then, the operator holds the drive rod 83 and rotates the drive rod 83 to drive the connecting rod 82 to rotate, which in turn drives the cam 84 to rotate. When the cam 84 rotates, it pushes the pressure block 87 downward, causing the slide rod 86 to slide downward. At the same time, the spring 88 is compressed and generates elastic force. When the slide rod 86 slides downward, the limiting sleeve 89 will slide downward together and connect with the column 810, thereby positioning the column 810. This allows the upper end of the dual-stage filter cartridge 7 to be positioned and pressed when it rotates, preventing vibration of the dual-stage filter cartridge 7 under high-speed rotation and improving the stability of the dual-stage filter cartridge 7 during rotation.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A medical microbial dual-stage separation and screening device, comprising a tank (1), a discharge pipe (2) provided on the side of the tank (1), a tank cover (3) provided on the top of the tank (1), a support (4) provided on the bottom of the tank (1), a drive wheel (5) provided on the bottom of the tank (1), and a rotating base (6) provided inside the tank (1), on which a dual-stage filter cartridge (7) is connected, characterized in that: It also includes a pressure cylinder structure (8), which is provided on the can cover (3). The pressure cylinder structure (8) includes a mounting base (81). The top of the can cover (3) is provided with a mounting base (81). A connecting rod (82) is provided inside the mounting base (81). A drive rod (83) is fixed at one end of the connecting rod (82), and a cam (84) is provided at the other end. A positioning hole (85) is provided on the cam (84). A positioning rod (851) is provided at the upper end of the mounting base (81). A slide rod (86) is provided inside the mounting base (81). A pressure block (87) is fixed at the upper end of the slide rod (86). A spring (88) is provided on the surface of the slide rod (86). A limit sleeve (89) is provided at the bottom of the slide rod (86). A column (810) is provided at the top of the dual-stage filter cartridge (7).

2. The medical microbial dual-stage separation and screening device according to claim 1, characterized in that: The surface of the column (810) is provided with a limiting platform (811).

3. The medical microbial dual-stage separation and screening device according to claim 2, characterized in that: The diameter of the limiting sleeve (89) is the same as the diameter of the limiting platform (811).

4. The medical microbial dual-stage separation and screening device according to claim 1, characterized in that: The limiting sleeve (89) is provided with a rotating sleeve (891) inside, and the rotating sleeve (891) is rotatably connected to the limiting sleeve (89). The inner wall of the lower end of the rotating sleeve (891) is inclined.

5. The medical microbial dual-stage separation and screening device according to claim 4, characterized in that: The bottom of the rotating sleeve (891) protrudes from the bottom of the limiting sleeve (89).

6. The medical microbial dual-stage separation and screening device according to claim 1, characterized in that: One side surface of the cam (84) is flat.

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