Sampling stick

Abstract

The application relates to a sampling rod, which comprises a water-absorbable sampling head and a clamping mechanism, the clamping mechanism comprises a rod body, a rod body connecting part, a support plate and two clamping plates, the bottom end of the rod body connecting part is connected with the rod body, the top end of the rod body connecting part is connected with the support plate, the two clamping plates are respectively arranged on the two sides of the support plate, and the bottoms of the two clamping plates are respectively hinged with the rod body connecting part; at least one end of the water-absorbable sampling head is detachably fixed in a clamping space formed between the support plate and the clamping plate on the corresponding side through a corresponding locking assembly. When the water-absorbable sampling head needs to be fixed, the water-absorbable sampling head can be prevented from slipping off, and the water-absorbable sampling head can be conveniently detached when needed, so that the sampling rod is convenient to use, easy to fix and detach, and has good practicability.

Description

Technical Field

[0001] This invention relates to the field of environmental microbial smear sampling technology, specifically a sampling stick. Background Technology

[0002] Currently, pharmaceutical, food, and precision component manufacturing workshops and production lines require frequent environmental control inspections to ensure compliance with Good Manufacturing Practices (GMP) and company and national standards. Sampling is generally conducted using the following two methods:

[0003] One method involves using homemade swabs made from medical cotton swabs and saline solution to smear environmental microorganisms. However, this method requires preparing sterile saline solution, which is susceptible to external contamination during the preparation process. Furthermore, the small sampling contact area of ​​these swabs results in low microbial recovery rates, inaccurate results, and inconvenience. After sampling, the sample needs to be taken to a laboratory for sterile elution. It is difficult to fully extract and release bacteria from the cotton swabs. The elution process is also prone to secondary contamination. Additionally, pipetting equipment is required to add the sample to petri dishes or enrichment broth for cultivation, which is extremely inconvenient.

[0004] Another method involves using clamping or adhesive to fix absorbent materials like sponges for sampling. However, this method is prone to problems during sampling, as the sponge may fall off due to loose clamping, interrupting the sampling process, causing contamination, wasting expensive sampling rods, and affecting the sampling results. Sampling rods using adhesive to fix the sponge may also be affected by the toxicity or antibacterial properties of the adhesive, which can interfere with the detection of microorganisms, especially pathogens, in the collected samples. Since the amount of pathogens present is generally relatively small, and the national standard requires a sampling depth of 100 μL... 2 Or, it should not be detected over a wider range. The recovery and release rates of bacterial samples significantly affect experimental data and can cause bias in the results. Moreover, the sponge release process of such sampling sticks is cumbersome, and some use a break-and-release method, which is highly susceptible to contamination. The sharp plastic handle after breakage can also puncture the homogenization bag during transfer, causing undetectable contamination and making them inconvenient to use. Summary of the Invention

[0005] In view of the above-mentioned deficiencies of the prior art, the present invention provides a sampling rod that is easy to operate, easy to fix and disassemble, and has good practicality.

[0006] To achieve the above objectives, the sampling rod of the present invention has the following configuration:

[0007] The main features of this sampling rod are:

[0008] Water-absorbing sampling head;

[0009] The clamping mechanism includes a rod, a rod connecting part, a support plate, and two clamping plates. The bottom end of the rod connecting part is connected to the rod, and the top end of the rod connecting part is connected to the support plate. The two clamping plates are located on both sides of the support plate, and the bottom of the two clamping plates are hinged to the rod connecting part. Two sets of locking components are provided between the two sides of the support plate and the two clamping plates.

[0010] At least one end of the absorbent sampling head is detachably fixed within the clamping space formed between the support plate and the two clamping plates on the corresponding side by a corresponding locking component.

[0011] In the above-mentioned sampling rod, when the clamping plates are connected to the support plate through the locking assembly, the clamping space is formed by a preset distance gap between each clamping plate and the support plate.

[0012] In the above-mentioned sampling rod, the clamping plate is made of a material with a certain hardness and toughness;

[0013] The absorbent sampling head is made of a flexible absorbent material.

[0014] In one of the above-mentioned sampling rods, the locking assembly is composed of a snap-fit ​​assembly;

[0015] Each of the aforementioned latching components includes a latching body disposed on the corresponding clamping plate and a latching groove disposed on the corresponding surface of the support plate, or

[0016] Each of the aforementioned buckle components includes a buckle groove disposed on the corresponding clamping plate and a buckle body disposed on the corresponding surface of the support plate.

[0017] In one of the aforementioned sampling rods, after the absorbent sampling head is folded, both ends of the absorbent sampling head are detachably fixed to two clamping spaces on both sides of the support plate by two sets of locking components; wherein,

[0018] The two ends of the absorbent sampling head are respectively provided with openings at the positions corresponding to the two sets of locking components. Each of the buckle bodies passes through the corresponding opening and locks with the corresponding buckle groove to confine the two ends of the absorbent sampling head within the two clamping spaces.

[0019] In the above-mentioned sampling rod, one end of the water-absorbing sampling head is provided with an opening. The water-absorbing sampling head is located in any of the clamping spaces in the clamping mechanism, and is locked with the corresponding buckle groove after passing through the opening in the water-absorbing sampling head by the corresponding buckle body, so as to limit the water-absorbing sampling head to be located in the corresponding clamping space.

[0020] In one of the above-mentioned sampling rods, the locking assembly is located near the top of the clamping plate.

[0021] In the above-mentioned sampling rod, a gap is provided at the middle position of the top of the support plate, and the gap has a U-shaped structure.

[0022] In one of the above-mentioned sampling rods, the width of the gap in the U-shaped structure is greater than 0.5 cm.

[0023] In one of the above-mentioned sampling rods, the top of the support plate is higher than the tops of the two clamping plates; the width of the clamping plates matches the width of the support plate.

[0024] When the two ends of the absorbent sampling head are respectively fixed in the two clamping spaces, the top of the support plate abuts against the absorbent sampling head.

[0025] In one of the above-mentioned sampling rods, the portion of the support plate above the two clamping plates has a U-shaped structure.

[0026] In the above-mentioned sampling rod, both of the clamping plates have an outwardly convex arc surface structure to form the clamping space between each of the clamping plates and the support plate.

[0027] In the above-mentioned sampling rod, a reinforcing member is provided at the bottom of the rod connecting part where it connects to the rod body.

[0028] In one of the above-mentioned sampling rods, the rod body is provided with anti-slip protrusions;

[0029] The side of the clamping plate adjacent to the support plate is provided with a support protrusion.

[0030] The sampling rod described above further includes a packaging material that is detachably mounted on the clamping mechanism.

[0031] The beneficial effects of the sampling rod of the present invention are as follows:

[0032] At least one end of the absorbent sampling head in the sampling rod can be detachably fixed in the clamping space on the corresponding side of the clamping mechanism by a locking assembly. The clamping mechanism limits the absorbent sampling head, so as to prevent the absorbent sampling head from slipping when it is necessary to fix the absorbent sampling head, and at the same time, it is easy to remove the absorbent sampling head when it is necessary to remove it.

[0033] When removing the absorbent sampling head made of flexible absorbent material, pull the head through the packaging of the clamping mechanism while simultaneously pulling the rod in the opposite direction. This allows the head to be torn directly from the opening secured by the locking assembly without opening the locking mechanism, thus detaching it from the clamping mechanism. After detachment, the head can be sealed and stored in the packaging. The entire clamping mechanism can be discarded, recycled, disinfected, and reused. Removing the absorbent sampling head from the flexible absorbent material eliminates the need to manually unlock the clamping mechanism, effectively preventing contamination of the head after sampling. Used in conjunction with this clamping mechanism, it offers convenience, ease of fixing and disassembly, and excellent practicality. Attached Figure Description

[0034] The following will further explain the concept, specific structure, and technical effects of the present invention in conjunction with the accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention.

[0035] Figure 1 This is a schematic diagram of the sampling rod of the present invention in one embodiment.

[0036] Figure 2 This is a schematic diagram of the clamping mechanism in the sampling rod of the present invention in the locked state in one embodiment.

[0037] Figure 3 This is a schematic diagram of the structure of the clamping mechanism in the sampling rod of the present invention in the unlocked state in one embodiment.

[0038] Figure 4 This is a side view of the rod, rod connection portion and support plate in the clamping mechanism of the sampling rod of the present invention in one embodiment.

[0039] Figure 5 This is a schematic diagram of the structure of the water-absorbing sampling head of the present invention when it is laid flat in one embodiment.

[0040] Figure 6 This is a schematic diagram of the structure of the water-absorbing sampling head of the present invention when it is laid flat in another embodiment.

[0041] Figure 7 This is a schematic diagram of the structure of the water-absorbing sampling head of the present invention when it is laid flat in another embodiment.

[0042] Figure Labels

[0043] 1 Water-absorbing sampling head

[0044] 11. Opening

[0045] 2 Clamping mechanism

[0046] 21 rods

[0047] 211 Anti-slip bumps

[0048] 22. Rod connection part

[0049] 23 Support plate

[0050] 24 Reinforced Components

[0051] 25 Locking components

[0052] 251 Buckle Body

[0053] 252 Clip slot

[0054] 26 plywood

[0055] 261 Support bump Detailed Implementation

[0056] To make the technical means, inventive features, objectives, and effects of the invention readily understandable, the invention is further illustrated below with reference to specific figures. However, the invention is not limited to the embodiments described below.

[0057] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0058] like Figures 1 to 6 As shown, the sampling rod in this embodiment includes a water-absorbing sampling head 1 and a clamping mechanism 2, wherein:

[0059] The absorbent sampling head 1 can be made of flexible absorbent material. In specific implementation, materials such as wood pulp sponge, polyurethane sponge, PU sponge, non-woven fabric, and Dacron paper can be selected to make the absorbent sampling head 1. These materials do not shed debris or fibers and have no antibacterial effect.

[0060] The clamping mechanism 2 includes a rod 21, a rod connecting part 22, a support plate 23, and two clamping plates 26. The clamping plates 26 can be made of a material with a certain hardness and toughness, which makes the clamping mechanism 2 more adaptable and can handle a wider range of flexible materials, thereby improving its adaptability. The bottom end of the rod connecting part 22 is connected to the rod 21, and the top end of the rod connecting part 22 is connected to the support plate 23. The two clamping plates 26 are located on both sides of the support plate 23, and the bottom of the two clamping plates 26 are hinged to the rod connecting part 22. Two sets of locking components 25 are provided between the two sides of the support plate 23 and the two clamping plates 26.

[0061] The two ends of the absorbent sampling head 1 are detachably fixed to the support plate 23 and the two clamping plates 26 on both sides of the support plate 23 through two sets of locking components 25; wherein, when the clamping plate 26 is connected to the support plate 23 through the locking components 25, the clamping space is formed by a preset distance gap between each clamping plate 26 and the support plate 23.

[0062] The gap distance can be determined according to the thickness of the flexible material constituting the water-absorbing sampling head 1 to be clamped, so that both ends of the flexible material can be fixed in the clamping space, fit with the two clamping plates 26 and the support plate 23, and are not easy to fall off during sampling and wiping.

[0063] When both ends of the absorbent sampling head 1 are fixed in the two clamping spaces, the top end of the support plate 23 abuts against the absorbent sampling head 1, and the support plate 23 supports and lifts the absorbent sampling head 1 inside.

[0064] The above structure can effectively fix the absorbent sampling head 1, preventing it from falling off or shifting during use.

[0065] like Figures 1 to 3 As shown, in this embodiment, the locking component 25 is located near the top of the clamping plate 26, and the locking component 25 in this embodiment is composed of a snap-fit ​​component; each snap-fit ​​component includes a snap-fit ​​body 251 disposed on the corresponding clamping plate 26 and a snap-fit ​​groove 252 disposed on the corresponding surface of the support plate 23 (in other embodiments, the snap-fit ​​groove 252 may be disposed on the clamping plate 26, and the snap-fit ​​body 251 may be disposed on the support plate 23); in other embodiments, the locking component 25 may also be composed of other components with locking function.

[0066] In this embodiment, the two ends of the absorbent sampling head 1 are provided with openings 11 at positions corresponding to the locking assembly 25. Each of the buckle bodies 251 passes through the corresponding opening 11 and locks with the corresponding buckle groove 252 to limit the two ends of the absorbent sampling head 1 within the two clamping spaces.

[0067] When the buckle body 251 and the buckle groove 252 are locked, the clamping plate 26 is fixedly connected to the support plate 23, confining the water-absorbing sampling head 1 made of flexible material in the clamping space; when the buckle body 251 and the buckle groove 252 are unlocked, the clamping plate 26 can be removed from the support plate 23, which facilitates the placement and removal of the water-absorbing sampling head 1 and prevents the water-absorbing sampling head from falling off the clamping mechanism 2 during sampling.

[0068] like Figure 4As shown. In this embodiment, a gap is provided in the middle of the top of the support plate 23, and the gap has a U-shaped structure. Preferably, the width of the gap in the U-shaped structure is greater than 0.5 cm. Through the top design of this U-shaped structure, a certain space is left in the middle of the support plate 23, so that absorbent materials such as sponges can play a certain supporting role in environmental sampling, enhance the sampling effect, and better break the biofilm on the environmental surface. This makes it easier to support the absorbent sampling head 1 for environmental sampling, and also makes it easier for the user to remove the absorbent sampling head 1 from the clamping mechanism 2. The specific width of the gap can be determined according to actual needs.

[0069] In this embodiment, the sampling rod also includes packaging, which is detachably fitted onto the clamping mechanism 2. The packaging is not shown in any of the figures.

[0070] In this embodiment, the absorbent sampling head 1 is made of a flexible material, and the flexible material constituting the absorbent sampling head 1 is fastened and fixed by a snap-fit ​​through an opening 11 at the edge. Figures 1 to 6 As shown, in this embodiment, the two clamping plates 26 are a left clamping plate and a right clamping plate. Between the left clamping plate and the support plate 23, there is a left latching body 251 on the left clamping plate and a left latching groove 252 on the support plate 23, forming a left latching assembly. Between the right clamping plate and the support plate 23, there is a right latching body 251 on the right clamping plate and a right latching groove 252 on the support plate 23, forming a right latching assembly. A flexible material is folded in half and wrapped around the support plate 23. The two ends of the flexible material have holes (openings 11). The two ends of the flexible material are located within the clamping spaces formed by the left and right clamping plates and the support plate 23 and are secured by the latching assemblies passing through the small holes.

[0071] During actual disassembly, the flexible material at the gap in the U-shaped structure can be pinched by hand through the packaging (sampling bag) of the entire clamping mechanism 2, while the other hand gently pulls the rod 21 in the opposite direction. This allows the flexible material to be torn directly from the opening 11 where it is fastened without needing to open the buckle, thus detaching the absorbent sampling head 1 and the clamping mechanism 2. After detachment, the flexible material is sealed and preserved in its original packaging, and then proceeds with the appropriate transfer or culture process. The entire clamping mechanism 2 can be discarded, recycled, disinfected, and reused. Disassembly eliminates the need to manually open the latches of the clamping mechanism 2, preventing contamination of the sampled flexible material and facilitating the use of the sampling rod.

[0072] In this embodiment, the design of the locking component 25 prevents the flexible materials such as sponge and non-woven fabric that make up the absorbent sampling head 1 from falling off the clamping mechanism 2 during use. At the same time, the user can pinch the sponge or other flexible material through the original packaging (sampling bag) of the entire mechanism with their thumb and forefinger at the U-shaped gap, while gently pulling the rod 21 in the opposite direction with their other hand. The material is torn from the small holes at the locking parts at both ends by the pull, so that the sponge or other flexible absorbent material for sampling can be released and separated from the clamping mechanism 2 without having to manually open the lock of the clamping mechanism 2 to unlock it, thus avoiding contamination of the flexible material after sampling.

[0073] In this embodiment, the top of the support plate 23 is higher than the tops of the two clamping plates 26; the width of the clamping plates 26 matches the width of the support plate 23. The U-shaped portion of the top of the support plate 23 is higher than the tops of the two clamping plates 26. This design allows the flexible material to be supported by the U-shaped support plate 23, while also allowing for easier and larger-area contact with external surfaces, thus facilitating use.

[0074] In other embodiments, the top of the support plate 23, which has a U-shaped structure, may also be level with or slightly lower than the top of the clamping plate 26.

[0075] In this embodiment, both clamping plates 26 have an outwardly convex arcuate structure to form the clamping space between each clamping plate 26 and the support plate 23. This structural design allows the clamping plates 26 to better clamp the edge of the flexible material through their top ends, preventing the flexible material from loosening or shifting, and improving portability and stability during use.

[0076] Because the sampling rod used for environmental sampling will be subjected to a certain force during use, causing the rod body 21 to be in a bent state, in this embodiment, a reinforcing member 24 is provided at the bottom of the rod body connection 22 where it connects to the rod body 21, so as to have a certain strength while ensuring the flexibility of the rod body 21. The reinforcing member 24 can be a hollow structure.

[0077] In this embodiment, the side of the clamping plate 26 adjacent to the support plate 23 is provided with several evenly distributed support protrusions 261 to better fix the water-absorbing sampling head 1;

[0078] The rod 21 is provided with anti-slip protrusions 211, such as Figure 4 As shown, the anti-slip protrusion 211 in this embodiment is composed of horizontal stripes that prevent slippage. In this embodiment, the anti-slip protrusion 211 is provided on the upper and middle parts of the rod body 21, thereby effectively achieving the anti-slip function, increasing the anti-slip buffer during use, and making it more convenient to apply.

[0079] In practical applications, the following can be adopted: Figure 5 The rectangular absorbent sampling head 1 shown is fixed to the clamping mechanism 2, or it can be used... Figure 6 The elliptical water-absorbing sampling head 1 shown is fixed on the clamping mechanism 2. Figure 5 and Figure 6 The dotted line in the center of the absorbent sampling head 1 represents the folding line. The absorbent sampling head 1 can be folded along the folding line to wrap around the support plate 23 and then fixed to the clamping mechanism 2.

[0080] In other embodiments, the rod 21 and the rod connection 22 may be made into a detachable structure.

[0081] like Figure 7 As shown, this can also be used in practical applications. Figure 7 The illustrated water-absorbing sampling head 1 is configured with an opening. The water-absorbing sampling head 1 can be disposed in any of the clamping spaces in the clamping mechanism, and after the corresponding buckle body 251 passes through the opening in the water-absorbing sampling head 1, it locks with the corresponding buckle groove 252 to limit the water-absorbing sampling head 1 to the corresponding clamping space.

[0082] use Figure 7 When the absorbent sampling head 1 is shown, the top of the support plate being level with the tops of the two clamping plates does not affect the normal sampling operation.

[0083] In practical applications, two clamping mechanisms can also clamp two objects respectively within their two clamping spaces. Figure 7 The absorbent sampling head 1 shown is used for sampling.

[0084] The sampling rod described above can be used as an environmental sampling smear for sampling the environment. When using this sampling rod for environmental sampling, only a certain force needs to be applied to the rod 21 to smear a certain area of ​​the environmental surface. After smearing, the absorbent material such as a sponge can be pulled off through the U-shaped gap in the middle of the support plate 23, which facilitates subsequent experimental operations.

[0085] The sampling rod with this structure uses a locking assembly 25 to confine the absorbent material, such as a sponge, forming the absorbent sampling head 1 within the clamping space between the clamping plate 26 and the support plate 23. This effectively improves the ease of fixing the flexible material while ensuring a firm fixation that prevents it from falling off during use. Furthermore, the mechanical fixing method avoids the use of adhesives, better preserving the integrity of microorganisms in environmental sampling and ensuring the accuracy of experimental results. The locking mechanism allows for release by pulling or stretching the absorbent sampling head 1, making operation simple and convenient. This sampling rod has a simple structure, is easy to manufacture, and possesses good applicability and practicality.

[0086] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A sampling rod, characterized in that, include: A water-absorbing sampling head, wherein the water-absorbing sampling head is made of a flexible water-absorbing material; The clamping mechanism includes a rod, a rod connecting part, a support plate, and two clamping plates. The bottom end of the rod connecting part is connected to the rod, and the top end of the rod connecting part is connected to the support plate. The two clamping plates are located on both sides of the support plate, and the bottom of the two clamping plates are hinged to the rod connecting part. Two sets of locking components are provided between the two sides of the support plate and the two clamping plates. At least one end of the absorbent sampling head is detachably fixed within the clamping space formed between the support plate and the clamping plate on the corresponding side by a corresponding locking component; The top of the support plate is higher than the tops of the two clamping plates; the width of the clamping plates matches the width of the support plate. When both ends of the absorbent sampling head are fixed in the two clamping spaces respectively, the top end of the support plate abuts against the absorbent sampling head; The locking assembly is composed of a snap-fit ​​assembly; Each of the aforementioned latching components includes a latching body disposed on the corresponding clamping plate and a latching groove disposed on the corresponding surface of the support plate, or Each of the aforementioned fastening components includes a fastening groove disposed on the corresponding clamping plate and a fastening body disposed on the corresponding surface of the support plate; After the absorbent sampling head is folded, both ends of the absorbent sampling head are detachably fixed to the two clamping spaces on both sides of the support plate by two sets of locking components; wherein, The two ends of the absorbent sampling head are respectively provided with openings at the positions corresponding to the two sets of locking components. Each of the buckle bodies passes through the corresponding opening and locks with the corresponding buckle groove, so as to limit the two ends of the absorbent sampling head to be respectively within the two clamping spaces. A reinforcing member is provided at the bottom of the rod connection part where it connects to the rod; The rod is provided with anti-slip protrusions; The side of the clamping plate adjacent to the support plate has several evenly distributed support protrusions.

2. The sampling rod according to claim 1, characterized in that, When the clamping plates are connected to the support plate via the locking assembly, the clamping space is formed by a preset distance between each clamping plate and the support plate.

3. The sampling rod according to claim 1, characterized in that, The clamping plate is made of a material with a certain degree of hardness and toughness.

4. The sampling rod according to claim 1, characterized in that, The locking assembly is located near the top of the clamping plate.

5. The sampling rod according to claim 1, characterized in that, The support plate has a U-shaped gap at the top center.

6. The sampling rod according to claim 5, characterized in that, The width of the gap in the U-shaped structure is greater than 0.5 cm.

7. The sampling rod according to claim 1, characterized in that, Both clamping plates have an outwardly convex arcuate structure to form the clamping space between each clamping plate and the support plate.

8. The sampling rod according to claim 1, characterized in that, The sampling rod also includes packaging material that is detachably mounted on the clamping mechanism.

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