Microorganism inspection extractor
By designing an oscillation mechanism for the microbial testing extractor, the problems of uneven mixing and easy tilting and falling of the extraction bottle were solved, achieving better mixing effect and safety, and saving manpower.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 鄂尔多斯市检验检测中心(鄂尔多斯市粮食质量安全检验监测中心)
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-12
AI Technical Summary
In current microbiological testing, the extraction flasks are often unevenly mixed and prone to tilting, affecting the detection results. Furthermore, the lack of an effective protective structure makes the extraction flasks prone to tilting or falling during the mixing process.
A microbial testing extractor is designed, including an oscillation mechanism between the body and the extraction bottle, the body having a vibrator that matches the extraction bottle, the oscillation mechanism including a lower frame, an upper fixed frame and a shaking assembly, the shaking assembly having an oscillator, the body and the extractor, the vibrator having a wave plate, rollers and springs, the wave plate being fixedly mounted on the bottom wall of the mounting cavity, the rollers being rotatably mounted on the lower end of the movable frame and abutting against the wave plate, and the springs being sleeved on the support rod and located between the decorative cover and the movable frame.
This technology enables stable shaking and mixing in the extraction flask, improving mixing efficiency, reducing labor costs, enhancing safety, and ensuring the stability of the extraction flask during the mixing process.
Smart Images

Figure CN224220797U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of testing equipment technology, and specifically relates to a microbial testing extractor. Background Technology
[0002] Currently, in microbial testing, extraction methods are used to extract test solutions. The conventional extraction method involves dissolving the analyte in a solvent such as isopropyl myristate, adding a diluent, mixing to allow the layers to separate, and then taking the clear layer for testing. In the past, mixing was mostly done manually by shaking, but this method is labor-intensive and has poor mixing results. Therefore, mechanical shaking equipment is now mostly used for mixing. However, general equipment can only provide simple oscillation, which makes it difficult to mix the mixture in the extraction bottle thoroughly and evenly. Poor mixing results can affect subsequent layer separation. In addition, there is a lack of simple and effective protective structures, which can easily lead to the extraction bottle tilting, losing weight, or even falling during the mixing process. Utility Model Content
[0003] The purpose of this invention is to provide a microbial testing extractor to solve the problems mentioned in the background art.
[0004] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:
[0005] A microbial testing extractor, comprising a body and an extraction bottle, characterized in that: the body is provided with an oscillation mechanism that matches the extraction bottle;
[0006] The oscillation mechanism includes a lower placement frame, an upper fixed frame, and shaking components. There are two shaking components symmetrically arranged on the side of the machine body. The lower placement frame is connected to the two shaking components and extends upward. The upper fixed frame is connected and matched with the lower placement frame. The extraction bottle is located between the lower placement frame and the upper fixed frame.
[0007] The shaking assembly includes a drive motor, a connecting frame, and a vibrator. The side of the machine body has an installation cavity. The drive motor is located at the rear of the machine body and corresponds to the position of the installation cavity. The connecting frame is located inside the installation cavity and is connected to the output shaft of the drive motor. The moving direction of the connecting frame is back-and-forth relative to the machine body. The vibrator is located between the connecting frame and the bottom wall of the installation cavity.
[0008] The lower placement frame includes support rods and a placement plate. The number of support rods is several and they are symmetrically distributed in two connecting frames. The placement plate is connected to the upper end of the support rods and has a placement opening.
[0009] The upper fixing frame includes a pressure plate and locking components. There are two locking components, which are symmetrically arranged on both sides of the pressure plate. Each locking component consists of a screw and a locking nut. The pressure plate has a slot corresponding to the placement opening of the placement plate. The screw is located on the lower side of the pressure plate and slides through the placement frame. The locking nut is threadedly connected to the screw.
[0010] The connecting frame includes a decorative cover and a movable frame. The decorative cover is slidably connected to the upper end of the machine body and is slidably connected to the support rod. The movable frame is slidably connected to the output shaft of the drive motor and is located in the mounting cavity. The support rod extends downward into the mounting cavity and is connected to the movable frame.
[0011] The vibrator includes a wave plate, a roller, and a spring. The wave plate is fixedly installed on the bottom wall of the mounting cavity. The roller is rotatably installed at the lower end of the movable frame and abuts against the wave plate. The spring is sleeved on the support rod and located between the decorative cover and the movable frame.
[0012] This application has at least the following advantages compared to the prior art:
[0013] The combination of the lower rack and the upper fixed rack provides excellent protection for the contents of the extraction bottle during mixing, ensuring its stability during shaking and mixing. The shaking component provides more comprehensive oscillation for mixing the contents used in extraction, which is more conducive to subsequent extraction needs. Attached Figure Description
[0014] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.
[0015] Figure 1 This is a schematic diagram of the overall structure of this application.
[0016] Figure 2 This is another schematic diagram of the overall structure of this application.
[0017] Figure 3 This is a schematic diagram of the oscillation mechanism of this application.
[0018] Figure 4 This is a cross-sectional view of the structure along the middle of one side of the oscillation mechanism in this application.
[0019] 1. Body, 11. Extraction bottle, 2. Drive motor, 21. Mounting cavity, 3. Support rod, 31. Placement plate, 32. Placement port, 33. Pressure plate, 34. Screw, 35. Locking nut, 36. Bayonet, 4. Decorative cover, 41. Movable frame, 5. Wave plate, 51. Roller, 52. Spring. Detailed Implementation
[0020] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.
[0021] like Figure 1-4 As shown, a microbial testing extractor includes a body 1 and an extraction bottle 11, wherein the body 1 is provided with an oscillation mechanism that matches the extraction bottle 11.
[0022] The oscillation mechanism includes a lower placement frame, an upper fixed frame, and a shaking assembly. There are two shaking assemblies, which are symmetrically arranged on the side of the machine body 1. The lower placement frame is connected to the two shaking assemblies and extends upward. The upper fixed frame is connected and matched with the lower placement frame. The extraction bottle 11 is located between the lower placement frame and the upper fixed frame.
[0023] The shaking assembly includes a drive motor 2, a connecting frame, and a vibrator. The side of the machine body 1 has a mounting cavity 21. The drive motor 2 is located at the rear of the machine body 1 and corresponds to the position of the mounting cavity 21. The connecting frame is located inside the mounting cavity 21 and is connected to the output shaft of the drive motor 2. The moving direction of the connecting frame is back and forth relative to the machine body 1. The vibrator is located between the connecting frame and the bottom wall of the mounting cavity 21.
[0024] During the extraction process, the mixture to be extracted is first injected into the extraction bottle 11. Then, the extraction bottle 11 is placed on the lower fixed frame. After all the extraction bottles 11 are placed, the upper fixed frame is used to fix the extraction bottles 11 between the upper fixed frame and the lower placement frame to ensure that they will not loosen or fall during the mixing process. Finally, the drive motor 2 in the shaking assembly is turned on, causing the drive motor 2 to output power and move the connecting frame in the mounting cavity 21. This causes the lower fixed frame, the upper fixed frame, and the extraction bottle 11 connected to it to shake back and forth. Furthermore, the connecting frame will also interact with the vibrator during the movement, causing the extraction bottle 11 to vibrate up and down, thereby achieving a better vibration mixing effect and improving the purity of the liquid after subsequent settling and stratification. Compared with conventional manual shaking, this application has better effect and saves manpower. Compared with general simple shaking, this application has the advantages of greater safety and more comprehensive shaking.
[0025] The lower placement frame includes support rods 3 and placement plate 31. There are several support rods 3, which are symmetrically distributed in two connecting frames. The placement plate 31 is connected to the upper end of several support rods 3 and has a placement opening 32.
[0026] The support rod 3 mainly serves to support and connect the placement plate 31, the upper fixing frame, and the shaking assembly. The placement port 32 is used to place and limit the extraction bottle 11.
[0027] The upper fixing frame includes a pressure plate 33 and a locking component. There are two locking components, which are symmetrically arranged on both sides of the pressure plate 33. The locking component consists of a screw 34 and a locking nut 35. The pressure plate 33 has a slot 36 corresponding to the position of the placement opening 32 of the placement plate 31. The screw 34 is located on the lower side of the pressure plate 33 and slides through the placement frame. The locking nut 35 is threadedly connected to the screw 34.
[0028] After the extraction bottle 11 is placed stably, align the bayonet 36 of the pressure plate 33 with the extraction bottle 11, and align the screw 34 with the through hole of the placement rack and pass it through. Finally, rotate the locking nut 35 to connect with the screw 34 until the locking nut 35 abuts against the lower end of the placement rack and is locked. At this time, rotating the locking nut 35 will cause the pressure plate 33 to move downwards, which can effectively improve the fastening effect.
[0029] The connecting frame includes a decorative cover 4 and a movable frame 41. The decorative cover 4 is slidably connected to the upper end of the body 1 and is slidably connected to the support rod 3. The movable frame 41 is slidably connected to the output shaft of the drive motor 2 and is located in the mounting cavity 21. The support rod 3 extends downward into the mounting cavity 21 and is connected to the movable frame 41.
[0030] The decorative cover 4 is used to partially cover the opening of the mounting cavity 21, forming a protective barrier to prevent large debris from falling in and to prevent accidents during equipment operation. Of course, other covering measures can also be used, such as setting a corrugated cover to form a more comprehensive cover. In this application, it is only one possible way to implement it. When the drive is started, it will generate a back-and-forth traction cycle to pull the movable frame 41, thereby causing the movable frame 41 to drive the lower placement frame and the decorative cover 4 to move back and forth, thereby producing a shaking effect. The movable frame 41 is slidably connected to the output shaft of the drive motor 2, which can cover the stroke that needs to be moved when the movable frame 41 is subjected to the action of the vibrator to produce up and down displacement, ensuring the stable operation of the component.
[0031] It is worth noting that the actuator referred to in this application is an electrical device or structure capable of providing reciprocating cyclic extension and retraction, such as an electrically controlled telescopic rod, a telescopic hydraulic cylinder, a telescopic air cylinder, or other devices that can convert rotational force into extensional force, such as a crank-connecting rod structure. Considering the overall usable space and floor area in this application, the electrically controlled telescopic rod and the telescopic hydraulic cylinder are the best choices, but this does not mean that this application can only use this electrical device to achieve rocking drive. The aforementioned devices or structures that provide reciprocating cyclic extension and retraction force are all prior art or devices well known to those skilled in the art, so they will not be described in detail here, nor will they be explained in terms of technical structure and principle.
[0032] The vibrator includes a wave plate 5, a roller 51 and a spring 52. The wave plate 5 is fixedly installed on the bottom wall of the mounting cavity 21. The roller 51 is rotatably installed at the lower end of the movable frame 41 and abuts against the wave plate 5. The spring 52 is sleeved on the support rod 3 and located between the decorative cover 4 and the movable frame 41.
[0033] The vertical cross-sectional structure of the wave plate 5 is wave-shaped. When the roller 51 is pressed down by the movable frame 41 and moves along the length of the wave plate 5, the spring 52 pushes the movable frame 41 downward, which will cause the movable frame 41 to generate a reciprocating up-and-down moving force. This force will be transmitted to the extraction bottle 11 through the support rod 3, thereby achieving the effect of vibration and shaking.
[0034] It is worth noting that buffer cotton is provided in both the placement port and the bayonet in this application to protect the extraction bottle and prevent damage to the extraction bottle during fixing.
[0035] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A microbial testing extractor, comprising a body and an extraction bottle, characterized in that: The machine body is equipped with an oscillation mechanism that matches the extraction bottle; The oscillation mechanism includes a lower placement frame, an upper fixed frame, and shaking components. There are two shaking components symmetrically arranged on the side of the machine body. The lower placement frame is connected to the two shaking components and extends upward. The upper fixed frame is connected and matched with the lower placement frame. The extraction bottle is located between the lower placement frame and the upper fixed frame. The shaking assembly includes a drive motor, a connecting frame, and a vibrator. The side of the machine body has an installation cavity. The drive motor is located at the rear of the machine body and corresponds to the position of the installation cavity. The connecting frame is located inside the installation cavity and is connected to the output shaft of the drive motor. The moving direction of the connecting frame is back-and-forth relative to the machine body. The vibrator is located between the connecting frame and the bottom wall of the installation cavity.
2. The microbial testing extractor according to claim 1, characterized in that: The lower placement frame includes support rods and a placement plate. The number of support rods is several and they are symmetrically distributed in two connecting frames. The placement plate is connected to the upper end of the support rods and has a placement opening.
3. A microbial testing extractor according to claim 2, characterized in that: The upper fixing frame includes a pressure plate and locking components. There are two locking components, which are symmetrically arranged on both sides of the pressure plate. Each locking component consists of a screw and a locking nut. The pressure plate has a slot corresponding to the placement opening of the placement plate. The screw is located on the lower side of the pressure plate and slides through the placement frame. The locking nut is threadedly connected to the screw.
4. A microbial testing extractor according to claim 2, characterized in that: The connecting frame includes a decorative cover and a movable frame. The decorative cover is slidably connected to the upper end of the machine body and is slidably connected to the support rod. The movable frame is slidably connected to the output shaft of the drive motor and is located in the mounting cavity. The support rod extends downward into the mounting cavity and is connected to the movable frame.
5. A microbial testing extractor according to claim 4, characterized in that: The vibrator includes a wave plate, a roller, and a spring. The wave plate is fixedly installed on the bottom wall of the mounting cavity. The roller is rotatably installed at the lower end of the movable frame and abuts against the wave plate. The spring is sleeved on the support rod and located between the decorative cover and the movable frame.