Device for collecting melon and fruit skin microorganism sample
By designing a fixture and a swab application device, the problems of difficulty in fixing the surface of fruits and vegetables and the introduction of contaminants were solved, achieving stable sampling and representative contact, and improving the sampling effect.
Patent Information
- Application Number
- CN202520248996.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-16
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2035-02-16
AI Technical Summary
In existing technologies, it is difficult to set up the sampling equipment due to the curvature of the fruit surface, and it is easy to introduce contaminants during the sampling process.
A device was designed that includes a fixing frame, a smear swab, a rotating rod, and a fixing mechanism. The fixing mechanism secures the fruits and vegetables, while the rotating rod and smear swab enable multi-week contact sampling, avoiding hand contact.
This method achieves stable fixation of fruits and vegetables, makes the sampling area more representative, avoids the introduction of contaminating bacteria, and improves the sampling effect.
Smart Images
Figure CN223607273U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of microorganism collection, in particular to a device for collecting a microorganism sample on the surface of melons and fruits. BACKGROUND
[0002] Chinese utility model patent application No. 2019211847221 discloses a microorganism detection sampling tool, which is recorded as follows: when an experimenter performs microorganism sampling on public supplies and tools, a sterile dry cotton swab is usually used, which is immersed in 10 ml of sterilized physiological saline solution, and is uniformly smeared on the target part to collect microorganisms. After the sampling is completed, the hand contact part is cut off, the cotton swab is placed in the original physiological saline solution, and is sent for inspection within 4 hours. When the experimenter performs sampling operation on the surface of melons and fruits, the sampling cotton swab is repeatedly smeared on the selected sampling area on the melon and fruit, and then the cotton swab is sent for inspection.
[0003] However, when the experimenter performs sampling operation by using the existing cotton swab or the sampling tool in the above patent document, the following disadvantages exist: 1. The sampling tool in the above patent document is not easy to set up and use because the surface of the melon and fruit has a certain curvature; 2. The cotton swab needs to be manually fixed on the melon and fruit during sampling, which is easy to introduce new bacteria during the sampling process. CONTENT
[0004] The device for collecting a microorganism sample on the surface of melons and fruits has the advantages that the melon and fruit can be conveniently fixed, and new bacteria are not easily introduced during the sampling process.
[0005] The purpose of the present application is achieved by the following technical solutions:
[0006] The device for collecting a microorganism sample on the surface of melons and fruits comprises a fixing frame, a smearing swab, a rotating rod and a fixing mechanism for fixing the bottom of the melon and fruit.
[0007] The fixing mechanism comprises a rotating disc, a connecting rod, a fixing rod and a clamping jaw. One end of the connecting rod is rotationally connected to the bottom end of the fixing frame, and the other end is fixed to the rotating disc. The fixing rod is fixedly installed at the side end of the rotating disc, and the clamping jaw is slidingly arranged at the free end of the fixing rod. The rotating rod is rotationally arranged on the fixing frame, the smearing swab is fixedly installed at the end of the rotating rod, and the smearing swab is in contact with the surface of the melon and fruit.
[0008] The fixing mechanism can fix the melon and fruit sample to be tested. When sampling, the smearing swab repeatedly contacts the periphery of the fruit skin by rotating the fixing mechanism, so that the sampling area is more representative.
[0009] As preferred, the fixing frame comprises an upper L-shaped sliding rod and a lower L-shaped fixing rod, the end of the upper L-shaped sliding rod and the lower L-shaped fixing rod are slidingly connected, and the upper end of the lower L-shaped fixing rod is provided with a sliding groove.
[0010] As preferred, the side end of the sliding groove is provided with a threaded hole, and a rotating threaded seat is arranged in the threaded hole.
[0011] As preferred, the fixing mechanism further comprises a spring, the end of the fixing rod is provided with a containing groove, the spring is installed in the containing groove, and one end of the spring is fixed to the groove bottom of the containing groove and the other end is fixed to the pawl.
[0012] The spring is arranged to facilitate the adjustment of the distance between the pawl and the fixing rod, so as to adapt to clamp fruits of different sizes.
[0013] As preferred, the fixing mechanism further comprises a connecting rod, a fixing disc, a U-shaped fixing rod and a rotating connecting seat; one end of the connecting rod is rotatably connected to the upper L-shaped sliding rod, and the other end is fixed to the fixing disc; the lower end of the fixing disc is provided with a rotating block, the rotating connecting seat is rotatably connected to the rotating block, and the two ends of the U-shaped fixing rod are fixed to the two ends of the connecting seat.
[0014] The upper body of the fruit is fixed by the reversible U-shaped fixing rod, so as to avoid the fruit from falling during rotation sampling.
[0015] As preferred, the upper L-shaped sliding rod is provided with a sliding hole, and the rotating threaded seat is abutted to one end of the upper L-shaped sliding rod and is provided with a fixing plate.
[0016] As preferred, an upper bearing is installed at the connection between the connecting rod and the upper L-shaped sliding rod.
[0017] As preferred, a lower bearing is installed at the connection between the connecting rod and the lower L-shaped fixing rod.
[0018] Compared with the prior art, the technical scheme of the present application has the following advantages or beneficial effects:
[0019] 1. The fruit sample to be tested is fixed by the fixing mechanism, and after the fruit sample is fixed, the fixing mechanism is rotated, so that the rotating fruit sample is in contact with the swab. The swab can sample around the whole body of the fruit sample to be tested, and the sampling area is more representative. The process of rotating several times is equivalent to several times of contact with the fruit skin, and the sampling effect is better.
[0020] 2. During the sampling process, the experimental personnel do not need to hold the fruit sample to be tested, so as to avoid the contact between the hands and the fruit skin, thereby introducing bacteria during sampling and interfering with the experimental results. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1A three-dimensional structural diagram of a device for collecting microbial samples from the peel of fruits and vegetables;
[0022] Figure 2 This is a schematic diagram illustrating the application of a device for collecting microbial samples from the surface of fruits and vegetables.
[0023] In the diagram: 1. Rotating disk, 2. Fixed rod, 3. Claw, 4. U-shaped fixed rod, 5. Connecting seat, 6. Connecting rod, 7. Upper bearing, 8. Fixed disk, 10. Upper L-shaped slide bar, 11. Fixed plate, 12. Rotating threaded seat, 13. Rotating rod, 14. Applying swab, 15. Lower L-shaped fixed rod, 17. Connecting rod. Detailed Implementation
[0024] The following detailed description of the embodiments of this application, in conjunction with the accompanying drawings, will provide a thorough understanding of how this application uses technical means to solve technical problems and achieve corresponding technical effects, enabling its implementation. The embodiments of this application and the various features within them can be combined with each other without conflict, and all resulting technical solutions are within the protection scope of this application.
[0025] It should be clearly stated that the embodiments described below are merely some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application. Example
[0026] This embodiment provides a detailed description of the aforementioned data acquisition device:
[0027] like Figures 1-2 As shown, a device for collecting microbial samples from the surface of fruits and vegetables includes a frame, a swab 14, a rotating rod 13, and a fixing mechanism for fixing the bottom of the fruits and vegetables.
[0028] The fixing mechanism comprises a rotating disc 1, a connecting rod 17, a fixing rod 2 and a clamping jaw 3; one end of the connecting rod 17 is rotatably connected with the bottom end of the fixing frame, and the other end is fixed with the rotating disc 1; the fixing rod 2 is fixedly installed at the side end of the rotating disc 1, and the clamping jaw 3 is slidably arranged at the free end of the fixing rod 2; a rotating rod 13 is rotatably arranged on the fixing frame, and the swab 14 is fixedly installed at the end of the rotating rod 13, and the swab 14 is in contact with the surface of the melon or fruit. The fixing frame comprises an upper L-shaped sliding rod 10 and a lower L-shaped fixing rod 15, the end of the upper L-shaped sliding rod 10 is slidably connected with the lower L-shaped fixing rod 15, and correspondingly, the upper end of the lower L-shaped fixing rod 15 is provided with a sliding groove. The fixing mechanism further comprises a spring, the end of the fixing rod 2 is provided with a containing groove, the spring is installed in the containing groove, and one end of the spring is fixed with the groove bottom of the containing groove, and the other end is fixed with the clamping jaw 3. The sliding groove is provided with a threaded hole at the side end, and the threaded hole is rotatably provided with a rotating threaded seat 12.
[0029] The connecting relationship and working principle of the internal components of the fixing mechanism are as follows:
[0030] As Figure 1 , in use, the melon or fruit to be measured can be placed on the rotating disc 11, the clamping jaw 3 is pulled outward, and after the melon or fruit to be measured is placed, the clamping jaw 3 is retracted and tightly attached to the surface of the melon or fruit due to the pulling force of the spring, so as to clamp and fix the melon or fruit around.
[0031] Since the connecting rod 17 and the lower L-shaped fixing rod 15 are rotatably connected, in sampling, the melon or fruit is rotated to make the surface of the melon or fruit in contact with the swab 14. The above sampling process does not require the experimenter to touch with hands, and the sampling area surrounds the melon or fruit for one turn, which is more representative.
[0032] Meanwhile, the experimenter can adjust the position of the swab 14 in the horizontal direction by rotating the rotating rod 13, so that the swab 14 is always tightly attached to the surface of the melon or fruit to be measured. Embodiment
[0033] Based on the embodiment 1, the following improvements are made again in this embodiment:
[0034] In this embodiment, the fixing mechanism further comprises a connecting rod 6, a fixing disc 8, a U-shaped fixing rod 4 and a rotating connecting seat 5; one end of the connecting rod 6 is rotatably connected with the upper L-shaped sliding rod 10, and the other end is fixed with the fixing disc 8; the lower end of the fixing disc 8 is provided with a rotating block, the rotating connecting seat 5 is rotatably connected with the rotating block, and the two ends of the U-shaped fixing rod 4 are fixed with the two ends of the connecting seat 5.
[0035] Since the connecting seat 5 is rotationally connected with the lower end of the fixing disc 8, and the connecting seat 5 is fixed with the U-shaped fixing rod 4, when the to-be-tested melon is fixed, the U-shaped fixing rod 4 can be turned to a suitable angle according to the size of the melon, and the U-shaped fixing rod 4 is in contact with the surface of the to-be-tested melon, so that the melon is clamped and fixed around. The advantage of the above design is that the risk of accidental falling of the to-be-tested melon sample can be avoided.
[0036] In the embodiment, the upper L-shaped slide rod 10 is provided with a sliding hole, and the fixed plate 11 is arranged at one end of the upper L-shaped slide rod 10 which is in abutment with the rotating threaded seat 12. Since the rotating rod 13 is arranged horizontally, when the upper L-shaped slide rod 10 slides up and down, the sliding hole is designed to avoid the conflict with the rotating rod 13 during the movement. The fixed plate 11 increases the force application area between the rotating threaded seat 12 and the upper L-shaped slide rod 10 after the rotating threaded seat 12 is screwed in, so that the fixing effect of the upper L-shaped slide rod 10 is better.
[0037] In the embodiment, the upper bearing 7 is arranged at the connection between the connecting rod 6 and the upper L-shaped slide rod 10.
[0038] In the embodiment, the lower bearing is arranged at the connection between the connecting rod 17 and the lower L-shaped fixing rod 15.
Claims
1. A device for collecting a sample of microorganisms on the skin of a melon or fruit, characterized in that, The fixed frame, the smearing swab (14), the rotating rod (13) and the fixing mechanism for fixing the bottom of melon and fruit are included. The fixing mechanism includes the rotating disc (1), the connecting rod (17), the fixed rod (2) and the claw (3). One end of the connecting rod (17) is rotatably connected with the bottom end of the fixed frame, and the other end is fixed with the rotating disc (1). The fixed rod (2) is fixedly installed at the side end of the rotating disc (1), and the claw (3) is slidably arranged at the free end of the fixed rod (2). The rotating rod (13) is rotatably arranged on the fixed frame, the smearing swab (14) is fixedly installed at the end of the rotating rod (13), and the smearing swab (14) is in contact with the surface of melon and fruit.
2. The device for collecting microbial samples from the surface of melons and fruits according to claim 1, characterized in that, The fixed frame includes the upper L-shaped sliding rod (10) and the lower L-shaped fixed rod (15), the end of the upper L-shaped sliding rod (10) is slidably connected with the lower L-shaped fixed rod (15), and correspondingly, the upper end of the lower L-shaped fixed rod (15) is provided with a sliding groove.
3. The device for collecting microbial samples from the surface of melons and fruits according to claim 2, characterized in that, The side end of the sliding groove is provided with a threaded hole, and the threaded hole is rotatably provided with a rotating threaded seat (12).
4. The device for collecting microbial samples from the surface of melons and fruits according to claim 1, characterized in that, The fixing mechanism further includes a spring, the end of the fixed rod (2) is provided with a containing groove, the spring is installed in the containing groove, one end of the spring is fixed with the groove bottom of the containing groove, and the other end is fixed with the claw (3).
5. The device for collecting microbial samples from the surface of melons and fruits according to claim 1, characterized in that, The fixing mechanism further includes the connecting rod (6), the fixed disc (8), the U-shaped fixed rod (4) and the rotating connecting seat (5). One end of the connecting rod (6) is rotatably connected with the upper L-shaped sliding rod (10), and the other end is fixed with the fixed disc (8). The lower end of the fixed disc (8) is provided with a rotating block, the rotating connecting seat (5) is rotatably connected with the rotating block, and the two ends of the U-shaped fixed rod (4) are fixed with the two ends of the connecting seat (5).
6. The device for collecting microbial samples from the surface of melons and fruits according to claim 1, characterized in that, The upper L-shaped sliding rod (10) is provided with a sliding hole, and the rotating threaded seat (12) is abuttingly arranged at one end of the upper L-shaped sliding rod (10) and provided with a fixed plate (11).
7. The device for collecting microbial samples from the surface of melons and fruits according to claim 1, characterized in that, The connecting rod (6) and the upper L-shaped sliding rod (10) are provided with the upper bearing (7) at the connection position.
8. The device for collecting microbial samples from the surface of melons and fruits according to claim 1, characterized in that, The connecting rod (17) and the lower L-shaped fixed rod (15) are provided with the lower bearing at the connection position.