Environmental object surface microorganism sampler
By designing an environmental microbial sampler combining three-dimensional base frame, hand-held rod, cross-dividing plate, spring and sponge fixing clip, the problem that the existing sampling method is greatly affected by human factors is solved, and the consistency of sampling results is achieved. Easy to operate.
Patent Information
- Application Number
- CN202420337177.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-23
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-02-23
AI Technical Summary
The existing environmental microbial sampling methods are greatly affected by the methods and strength of the sampling personnel, resulting in inconsistent detection results and cumbersome operation steps.
A microbial sampler on the surface of an environmental object is designed, using a combination of a three-dimensional base frame, a hand-held rod, a cross-dividing plate, a spring and a sponge fixing clip. Through the synergistic effect of the cross-dividing plate and the spring, the sampling sponge and the sampling ground can be ensured. Consistent pressure reduces the influence of human factors.
The consistency of sampling techniques and sampling strength is achieved, the differences in sampling results are reduced, the operation steps are simplified, the sampling quality is ensured, and the pollution to the sampling sponge is reduced.
Smart Images
Figure CN222476602U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a microorganism sampler on the surface of an environmental object, belonging to the technical field of environmental detection. Background Art
[0002] The content of microorganisms in the environment is closely related to the safety of people and animals, especially when viruses or bacteria come. At present, when testing the content of microorganisms in the environment, cotton swabs are usually used to wipe the environment, but each person's sampling technique and sampling intensity are different. The test results are greatly affected by the personal factors of the sampler, which often leads to inconsistent results and the content of microorganisms in the environment cannot be accurately detected. In order to ensure the accuracy of the sampling area, tools such as gauges are often required, which makes the operation steps too cumbersome. Utility Model Content
[0003] The utility model aims to provide an environmental object surface microorganism sampler which is easy to use and less affected by human factors.
[0004] The technical solution of the utility model is: an environmental object surface microbial sampler is provided with a three-dimensional base frame and a hand-held rod, the three-dimensional base frame is a hollow three-dimensional base frame, the bottom end is open, the top is provided with a panel, the middle part of the panel is provided with a strip hole, the middle part of the hand-held rod is provided with a screw section, a cross partition and a nut are screwed (threadedly connected) on the screw section, the nut is located above or below the cross partition, the lower end of the hand-held rod is fixedly connected with a spring, and the lower end of the spring is fixedly connected with a sponge fixing clamp capable of fixing and installing a sampling sponge.
[0005] Preferably, the spring is a coil spring.
[0006] Preferably, the three-dimensional base frame is a rectangular (cuboid) three-dimensional base frame, and the side surfaces are plate-shaped or adopt a frame structure.
[0007] The size of the handle bar should ensure that the handle bar can pass through the bar-shaped hole. For example, the outer diameter (maximum outer diameter) of the handle bar should generally be smaller than the width of the bar-shaped hole.
[0008] Preferably, the transverse partition is in the shape of a strip plate (a strip-shaped plate), and a screw hole is provided in the middle for screwing on the screw segment.
[0009] The length of the transverse partition plate should generally be smaller than the length of the strip-shaped hole and larger than the width of the strip-shaped hole so as to be able to pass through the strip-shaped hole.
[0010] The sponge fixing clip is adapted to the sampling sponge and is used for fixing the sponge.
[0011] For example, a cylindrical sampling sponge can be used, and axial grooves serving as slots are provided on the end surfaces of both ends of the sampling sponge. Correspondingly, the sponge fixing clamp can be provided with two outwardly extending claws, and the lower ends of the two claws are provided with two clamping columns matching the two slots on the sampling sponge (a clamping column is provided at the lower end of each claw), and the two clamping columns extend inward coaxially (the axes are on the same straight line), leaving a spacing required for installing the sampling sponge.
[0012] According to actual use requirements, the clamping column can be in the form of a sheet (or plate), a cylinder or other suitable shapes.
[0013] When in use, the length direction of the diaphragm can be set to be consistent with the length direction of the sponge fixing clip (the direction of expansion of the two claws), and the nut can be tightened to fix the diaphragm. The length (dimension in the length direction) of the sponge fixing clip should usually be smaller than the length of the strip hole, and the width (dimension in the width direction) of the sponge fixing clip should usually be smaller than the width of the strip hole so that it can pass through the strip hole.
[0014] The dimensions of other related parts (for example, the outer diameter of the nut) should also ensure that they do not hinder passage through the strip hole.
[0015] Furthermore, a washer is provided between the transverse partition and the nut, and the washer is sleeved on the hand-held rod (screw segment).
[0016] Preferably, a disc is fixedly provided (for example, welded) at the lower end of the hand-held rod, and the upper end of the spring is fixedly connected (for example, welded) to the bottom surface of the disc, thereby realizing the connection of the spring to the lower end of the hand-held rod.
[0017] Preferably, a sleeve is fixedly provided at the lower end of the hand-held rod and is sleeved on the outside of the spring, and the inner diameter of the sleeve is larger than (slightly larger than) the outer diameter of the spring.
[0018] When a disc is provided at the lower end of the hand-held rod, the upper end of the sleeve can be fixedly connected to the disc, for example, the top of the sleeve is fixedly welded to the periphery of the disc.
[0019] The upper part of the hand-held rod adopts a hand-held structure (an appearance structure suitable for hand-holding).
[0020] The handheld structure is semi-elliptical.
[0021] A plurality of supporting legs (or brackets) are fixedly arranged at the bottom of the three-dimensional base frame.
[0022] The supporting feet are respectively arranged at the four corners of the bottom of the card frame plate.
[0023] The lower end of the supporting foot is provided with an anti-skid pad.
[0024] The utility model has the following beneficial effects: the compression degree of the spring is determined by the cooperation of the diaphragm and the spring, and a certain pressure is applied to the sponge fixing clamp and the sampling sponge by the spring, and the moving mode and moving distance of the sampling sponge are limited by the feet on the panel, thereby ensuring the consistency of the sampling technique and the sampling force, reducing or avoiding the phenomenon that the sampling results are greatly different due to different sampling personnel; because the combination of the sponge and the diaphragm makes the sampling area constant each time, there is no need to carry an additional gauge plate during the sampling process, which facilitates the sampling operation while ensuring the sampling quality; because the sponge fixing clamp and the sampling sponge are provided with a clamping connection realized by the clamping column and the clamping groove, the sampling sponge can be assembled and disassembled on the sponge fixing clamp by tweezers, which is not only convenient to operate, but also helps to reduce or avoid the contamination of the sampling sponge during the assembly and disassembly process, and the sampling sponge can be set to a standard specification and directly placed at the bottom of the glass tube for easy shaking, without the generation of other substances, avoiding the problem of contamination of the traditional sponge stick; because the hollow three-dimensional base frame, especially the hollow three-dimensional bracket with a plate-shaped side, encloses a relatively closed space, it can resist the entry of external dust and pathogens and other substances during the sampling process to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a cross-sectional schematic diagram of the utility model (the sampling sponge is not assembled to the sponge fixing clip);
[0026] Figure 2 It is a schematic diagram of the assembly (snapping) of the sampling sponge on the sponge fixing clip;
[0027] Figure 3 It is a three-dimensional schematic diagram (partial perspective) of the utility model. DETAILED DESCRIPTION
[0028] See also Figure 1-Figure 3This environmental microorganism sampler includes a three-dimensional base frame (or three-dimensional base frame) 1, and the bottom (usually the four corners) of the three-dimensional base frame 1 is fixedly welded with support legs 2. There is a panel 4 on the three-dimensional base frame 1, and a strip hole 5 is provided in the middle of the panel 4. The width of the strip hole 5 is greater than the outer diameter of the hand-held rod 10 and less than the length of the diaphragm (or baffle, or limit plate) 6, so that the hand-held rod 10 can pass through the panel 4 through the strip hole 5. The middle of the hand-held rod 10 is a screw section 7, or it is provided with an external thread, and the screw section 7 is threadedly connected with a diaphragm 6 and a butterfly nut 8. The diaphragm 6 is provided with a screw hole for threading with the screw section 7, or it is said that the inside of the diaphragm 6 is nut-shaped, and the butterfly nut 8 is located below the diaphragm 6. A washer 11 is provided between the diaphragm 6 and the butterfly nut 8 and is sleeved on the screw section 7. The washer 11 can reduce the direct friction between the diaphragm 6 and the nut 8 to avoid damage to the diaphragm 6. The lower end of the hand-held rod 10 is provided with a disk 14, and a spring 13 is fixedly connected to the lower end surface of the disk 14. The spring 13 can be a spiral spring, extending downward. The outer side of the spring 13 is a cylindrical shell (sleeve) 12, which is fixedly connected to the hand-held rod 10. The inner diameter of the cylindrical shell 12 is slightly larger than the outer diameter of the spring 13, which is used to limit and avoid excessive bending of the spring. Its axial length should be set according to actual operation requirements to avoid hindering the normal operation of the hand-held rod and the sampling sponge due to excessive length. The lower end of the spring 13 is fixedly connected with a sponge fixing clip 15, and the lower part of the sponge fixing clip 15 is provided with a clamping structure matching the sampling sponge. The clamping structure on the sponge fixing clip is two coaxial clamping columns 17 extending inwardly relative to each other. There is a spacing between the inner ends of the two clamping columns, which are respectively clamped (plugged) on the axial clamping grooves on the two end surfaces of the sponge 16, thereby realizing the fixed installation of the sampling sponge 16 on the sponge fixing clip 15. The sampling sponge 16 is a smooth cylindrical shape, with central grooves 18 for card slots on the end faces at both ends. When installing, the middle part of the sampling sponge 16 can be bent, and the central grooves at both ends of the sampling sponge can be aligned with the two card columns 17 on the sponge fixing clamp respectively, and then put on the corresponding card columns 17, thereby fixing the sampling sponge 16.
[0029] The bottom of the support leg 2 is covered (bonded) with an anti-skid pad 3, which can be a plastic pad or other suitable materials. The plastic pad can increase the friction between the sampler and the sampling site. At the same time, the plastic pad can prevent the support leg 2 from rubbing against the sampling site to produce sharp noise.
[0030] The three-dimensional base frame 1 (including the panel 4) provides a relatively closed environment for the sampling sponge 16, which can prevent interference of external dust, pathogens and other substances on sampling to a certain extent.
[0031] The hand-held rod 10 can pass through the strip hole 5 in the panel 4. The length of the diaphragm 6 screwed (threaded) on the hand-held rod 10 is greater than the width of the strip hole 5 and less than the length of the strip hole 5. The extension direction (length direction) of the diaphragm is consistent with the extension direction (length direction) of the strip hole. The diaphragm 6 can pass through the strip hole 5 from the top (outside) of the panel with the hand-held rod 10 and enter the inside of the panel. Then the diaphragm is rotated 90 degrees, and the panel will block the diaphragm on the inside of the panel. Therefore, the diaphragm can be placed above or below the panel 4 by rotating the diaphragm, which is convenient for sampling operation.
[0032] The upper portion 9 of the hand-held rod 10 is semi-elliptical, which is convenient for hand-held operation.
[0033] During work, use sterile tweezers to clamp the sterile soaked sampling sponge, install the sponge on the sponge clamp, fix the three-dimensional base with one hand, for example, hold the three-dimensional base and stabilize it, or press the three-dimensional base or the support foot with your hand and fix it on the sampling site or other objects, hold the upper part 9 of the hand-held rod with the other hand, rotate the hand-held rod to make the extension direction of the diaphragm 6 consistent with the strip hole 5, move the hand-held rod to drive the diaphragm to pass through the strip hole, rotate the hand-held rod 90 degrees again, so that the diaphragm 6 and the strip hole 5 are in a vertical state, and place the sampler (three-dimensional base) at the sampling site. Since the hand-held rod is not pressed down by hand during the sampling process, the pressure between the sampling sponge 16 and the sampling site is determined by the compression state of the spring and is fixed / unchanged. Hold the head of the hand-held rod 9 by hand and slowly move the hand-held rod from one end of the strip hole 5 to the other end while ensuring that it is upright (perpendicular to the panel) to achieve wiping sampling, and then pick up the sampler from the sampling site, take out the sponge with sterile tweezers and place it in a glass tube filled with sterile saline.
[0034] Since the degree of compression of the spring changes with the position of the diaphragm on the hand-held rod, the position of the diaphragm on the hand-held rod can be adjusted or changed according to actual needs, thereby adjusting or changing the sampling pressure between the sampling sponge and the sampling site.
[0035] Unless otherwise specified or when one preferred or optional technical means is a further limitation of another technical means, the preferred and optional technical means disclosed in the present utility model can be arbitrarily combined to form several different specific implementation methods.
Claims
1. Environmental object surface microbial sampler, characterized by It includes a three-dimensional base frame and a hand-held rod. The three-dimensional base frame is a hollow three-dimensional base frame with an open bottom and a panel on the top. A strip hole is opened in the middle of the panel. A screw section is provided in the middle of the hand-held rod. A cross partition and a nut are screwed on the screw section. The nut is located above or below the cross partition. The lower end of the hand-held rod is fixedly connected to a spring, and the lower end of the spring is fixedly connected to a sponge fixing clip that can fix the sampling sponge.
2. The environmental object surface microbial sampler as claimed in claim 1, characterized in that The spring is a coil spring.
3. The environmental object surface microbial sampler as claimed in claim 1, characterized in that The cross partition is in the shape of a strip plate, and a screw hole for screwing on the screw rod section is arranged in the middle.
4. The environmental object surface microbial sampler as claimed in claim 1, characterized in that The sponge fixing clamp is provided with two outwardly extended claws, and the lower ends of the two claws are provided with two clamping columns matching the two clamping grooves on the sampling sponge. The two clamping columns extend inwardly coaxially, and a spacing required for installing the sampling sponge is left between them.
5. The environmental object surface microbial sampler as claimed in claim 1, characterized in that A washer is arranged between the diaphragm and the nut, and the washer is sleeved on the hand-held rod.
6. The environmental object surface microorganism sampler as claimed in claim 1, characterized in that A disc is fixedly arranged at the lower end of the hand-held rod, and the upper end of the spring is fixedly connected to the bottom surface of the disc, thereby realizing the connection of the spring to the lower end of the hand-held rod.
7. The environmental object surface microorganism sampler as claimed in claim 1, characterized in that The lower end of the hand-held rod is fixedly provided with a sleeve sleeved on the outside of the spring, and the inner diameter of the sleeve is greater than the outer diameter of the spring.
8. The environmental object surface microbial sampler as claimed in claim 1, characterized in that The upper part of the hand-held rod adopts a hand-held structure.
9. The environmental object surface microbial sampler as claimed in claim 1, characterized in that A plurality of supporting legs are fixedly arranged at the bottom of the three-dimensional base frame.
10. The environmental object surface microorganism sampler as claimed in claim 9, characterized in that The lower end of the support foot is provided with an anti-skid pad.