A sampling device for detection of shiga toxin-producing escherichia coli

Abstract

The utility model relates to sample sampling device technical field especially, it is used for the sampling device for shiga toxin producing escherichia coli detection. Its technical scheme includes sampling cylinder and rotates and installs the rotating sampling assembly in sampling cylinder, the bottom of rotating sampling assembly is provided with the lower cover of screw thread rotation and is installed in the bottom of sampling cylinder and is closed, rotating sampling assembly includes the outer sleeve rod and sets up in the inner sleeve rod of outer sleeve rod, the bottom end of inner sleeve rod is provided with the sampling clamp for shiga toxin producing escherichia coli sampling, the sampling clamp includes the fixed rod of rotation and is installed below sampling clamp, the bottom end fixedly connected with sampling spoon of fixed rod. The utility model is accurate in sampling, avoids to contaminate, realizes the accurate, safe, convenient sampling of all kinds of samples, improves the reliability and efficiency of shiga toxin producing escherichia coli detection, provides the powerful technical support for food safety, environmental protection and disease diagnosis etc.

Description

Technical Field

[0001] This utility model relates to the field of sample collection device technology, and in particular to a sampling device for detecting Shiga toxin-producing Escherichia coli. Background Technology

[0002] Accurate detection of Shiga toxin-producing Escherichia coli is crucial as it is an important foodborne pathogen. However, current sampling procedures have several problems, severely impacting the efficiency and accuracy of testing. Secondary contamination can occur during sampling; for example, using ordinary tweezers or spoons can introduce microorganisms from the tool surface into the sample, interfering with the detection of Shiga toxin-producing Escherichia coli. In clinical diagnosis, when collecting samples from patient feces, the specific nature of these samples makes it difficult to control the sample volume. Insufficient sampling affects detection, while excessive sampling can easily contaminate the inner wall of the sampling tube or lead to accidental contact, resulting in insufficient sample cleanliness.

[0003] In summary, existing sampling methods and tools have problems such as inaccurate sampling volume, difficulty in controlling the amount of sample, easy contamination, inconvenience in operation, and inability to meet the needs of diverse scenarios when used for the detection of Shiga toxin-producing Escherichia coli. In view of the above reasons, this application proposes a sampling device for the detection of Shiga toxin-producing Escherichia coli that can accurately sample, is not easy to contaminate, and is easy to operate. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a sampling device for detecting Shiga toxin-producing Escherichia coli that is accurate, not easily contaminated, and easy to operate.

[0005] The technical solution of this utility model is: a sampling device for detecting Shiga toxin-producing Escherichia coli, including a sampling cylinder and a rotating sampling component rotatably installed inside the sampling cylinder, wherein the bottom of the rotating sampling component is provided with a threaded bottom cover that is rotatably installed at the bottom of the sampling cylinder for sealing.

[0006] The rotating sampling assembly includes an outer sleeve rod and an inner sleeve rod disposed inside the outer sleeve rod. The bottom end of the inner sleeve rod is provided with a sampling clamp for sampling Shiga toxin-producing Escherichia coli.

[0007] The sampling clamp includes a fixed rod rotatably mounted below the sampling clamp, and a sampling spoon is fixedly connected to the bottom end of the fixed rod.

[0008] Optionally, the sampling clamp further includes a connecting rod connected to the end of the inner sleeve rod, and the end of the fixing rod away from the sampling spoon is rotatably disposed with the bottom end of the connecting rod, and a compression spring is fixedly connected between the two sets of fixing rods.

[0009] Optionally, the top ends of the two sets of connecting rods are connected to the same connecting block, and the bottom inner wall of the inner sleeve rod is provided with a threaded groove, and the connecting block is rotatably connected to the threaded groove.

[0010] Optionally, the outer ring of the outer sleeve rod is provided with an external thread along its height direction, and the top of the sampling cylinder is provided with a corresponding threaded opening;

[0011] The inner sleeve and outer sleeve sidewalls are provided with multiple slots arranged in an array along their height direction.

[0012] Optionally, a groove is provided on one side of the threaded opening, located at the top of the sampling cylinder. A spring is fixedly connected to the side wall of the groove, and a locking block is connected to the other end of the spring. The locking block has an "L" shaped structure, and one end of the locking block is engaged with the locking opening.

[0013] The top outer ring of the sampling tube is also provided with a hand ring that is fixedly connected to it.

[0014] Optionally, a fixing plate is fixedly connected to the top of the inner sleeve rod, and a rotating frame is provided on the top of the fixing plate.

[0015] Optionally, a rotating hook is fixedly connected to the bottom of the lower cover, and a collection groove is provided on the top of the lower cover that is rotatably connected to the inner wall of the bottom of the sampling cylinder via a thread.

[0016] The bottom of the sampling tube is provided with a sealing ring to seal the lower cover and the sampling tube.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects:

[0018] This utility model uses a screw-rotated outer sleeve rod to extend the inner sleeve rod and sampling clamp from the bottom of the sampling cylinder after the cover has been removed. The sampling clamp is pulled along the inner wall of the outer sleeve rod to achieve the purpose of accurately sampling excrement with the sampling spoon. The sampling amount is set in conjunction with the size of the sampling spoon to avoid too much or too little sampling and to meet the requirements of sampling accuracy.

[0019] This invention achieves the purpose of collecting dripping liquid by setting up a collection tank; at the same time, the sampling clamp can be completely disassembled by setting up a connecting block, and the remaining structure can be reused after being disinfected without being contaminated by the sample.

[0020] In summary, this invention provides precise sampling, avoids contamination, and enables accurate, safe, and convenient sampling of various types of samples. It improves the reliability and efficiency of Shiga toxin-producing Escherichia coli detection, providing strong technical support for food safety, environmental protection, and disease diagnosis. Attached Figure Description

[0021] Figure 1 A three-dimensional structural schematic diagram of this utility model is provided;

[0022] Figure 2 for Figure 1 A frontal view diagram;

[0023] Figure 3 An exploded structural diagram of this utility model is provided;

[0024] Figure 4 A cross-sectional front view of this utility model is provided.

[0025] Figure label:

[0026] 1. Sampling cylinder; 11. Hand ring; 12. Threaded opening; 13. Slide groove; 14. Clamping block; 15. Spring;

[0027] 2. Bottom cover; 21. Collection trough; 22. Rotating hook; 23. Sealing ring;

[0028] 3. Rotating sampling assembly; 31. Outer sleeve rod; 310. External thread; 32. Inner sleeve rod; 320. Bayonet; 321. Fixing plate; 322. Rotating frame; 33. Sampling clamp; 330. Connecting rod; 331. Fixing rod; 332. Sampling spoon; 333. Compression spring; 334. Connecting block. Detailed Implementation

[0029] The technical solutions of this disclosure will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments.

[0030] The components of the embodiments of this disclosure, which are typically described and shown in the accompanying drawings, can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of embodiments of this disclosure provided in the drawings is not intended to limit the scope of the claimed disclosure, but merely to illustrate selected embodiments of the disclosure.

[0031] Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.

[0032] In the description of this disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0033] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0034] Example

[0035] like Figure 1-4 As shown, this utility model proposes a sampling device for detecting Shiga toxin-producing Escherichia coli, including a sampling cylinder 1 and a rotating sampling component 3 rotatably installed inside the sampling cylinder 1. The top outer ring of the sampling cylinder 1 is also provided with a hand ring 11 fixedly connected to it, which facilitates holding the entire sampling device. The bottom of the rotating sampling component 3 is provided with a lower cover 2 that is threadedly rotatably installed at the bottom of the sampling cylinder 1 for sealing. The bottom of the lower cover 2 is fixedly connected with a rotating hook 22, which facilitates rotating the lower cover 2 and removing it from the bottom of the sampling cylinder 1. The top of the lower cover 2 is provided with a collection groove 21 that is threadedly rotatably connected to the inner wall of the bottom of the sampling cylinder 1. The bottom of the sampling cylinder 1 is provided with a sealing ring 23 that seals the lower cover 2 and the sampling cylinder 1. The sealing ring 23 seals the bottom of the sampling cylinder 1 tightly, and the collection groove 21 collects the residual liquid dripped during sampling, avoiding environmental pollution caused by dripping.

[0036] like Figure 3 As shown, the rotating sampling assembly 3 includes an outer sleeve rod 31 and an inner sleeve rod 32 disposed inside the outer sleeve rod 31. A fixing plate 321 is fixedly connected to the top of the inner sleeve rod 32, and a rotating frame 322 is disposed on the top of the fixing plate 321. The inner sleeve rod 32 can be moved downward or upward as a whole by the fixing plate 321 and the rotating frame 322.

[0037] As shown in the figure and Figure 4 As shown, the inner sleeve rod 32 and the outer sleeve rod 31 have multiple slots 320 arrayed along their height direction on their side walls. A groove 13 located at the top of the sampling cylinder 1 is provided on one side of the threaded port 12. A spring 15 is fixedly connected to the side wall of the groove 13. The other end of the spring 15 is connected to a locking block 14. The locking block 14 has an "L" shaped structure, and one end of the locking block 14 is engaged with a slot 320. By engaging the locking block 14 with a slot 320, the height position of the inner sleeve rod 32 and the outer sleeve rod 31 is fixed.

[0038] like Figure 3As shown, the outer ring of the outer sleeve rod 31 is provided with an external thread 310 along its height direction, the top of the sampling cylinder 1 is provided with a corresponding threaded opening 12, and the bottom end of the inner sleeve rod 32 is provided with a sampling clamp 33 for sampling Shiga toxin-producing Escherichia coli.

[0039] Reference Figure 4 As shown, the sampling clamp 33 includes a fixed rod 331 rotatably mounted below the sampling clamp 33, and a sampling spoon 332 is fixedly connected to the bottom end of the fixed rod 331; the sampling clamp 33 also includes a connecting rod 330 connected to the end of the inner sleeve rod 32, and the top ends of the two sets of connecting rods 330 are connected to the same connecting block 334. The bottom inner wall of the inner sleeve rod 32 is provided with a threaded groove, and the connecting block 334 is rotatably connected to the threaded groove. The sampling clamp 33 can be replaced as a whole by setting the detachable sampling spoon 332; the end of the fixed rod 331 away from the sampling spoon 332 is rotatably set with the bottom end of the connecting rod 330, and a compression spring 333 is fixedly connected between the two sets of fixed rods 331.

[0040] In this embodiment, when sampling excrement, the locking block 14 is removed from the corresponding locking slot 320, and the outer sleeve rod 31 and inner sleeve rod 32 are rotated synchronously, so that the end of the sampling clamp 33 protrudes from one end of the sampling cylinder 1 after the lower cover 2 is opened. Then, the rotating frame 322 and inner sleeve rod 32 are pulled simultaneously, so that the sampling spoon 332 is pulled synchronously. When the connecting rod 330 and the fixing rod 331 are pulled to the inner wall of the outer sleeve rod 31 through the inner sleeve rod 32, the compression spring 333 is compressed, and the sampling spoon 332 clamps the sample. After closing, the sample is collected. At the same time, the inner sleeve rod 32 and the outer sleeve rod 31 are rotated so that the sampling clamp 33 after the sample is picked up is stored in the sampling tube 1. The locking block 14 is released so that the spring 15 rebounds and locks the locking block 14 into the corresponding slot 320, thereby fixing the position of the outer sleeve rod 31 and the inner sleeve rod 32. Simultaneously, the lower cover 2 is rotated and installed at the bottom of the sampling tube 1 to seal it and prevent contamination caused by dripping dirty liquid. When in use, the outer sleeve rod 31 and the inner sleeve rod 32 are rotated and pushed out of the sampling tube 1.

[0041] The above specific embodiments are merely optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A sampling device for detection of Shiga toxin-producing Escherichia coli, characterized in that, It includes a sampling cylinder (1) and a rotating sampling assembly (3) rotatably installed inside the sampling cylinder (1). The bottom of the rotating sampling assembly (3) is provided with a threaded bottom cover (2) that is rotatably installed at the bottom of the sampling cylinder (1) for sealing. The rotating sampling assembly (3) includes an outer rod (31) and an inner rod (32) disposed inside the outer rod (31). The bottom end of the inner rod (32) is provided with a sampling clip (33) for sampling Shiga toxin-producing Escherichia coli. The sampling clamp (33) includes a fixed rod (331) rotatably mounted below the sampling clamp (33), and a sampling spoon (332) is fixedly connected to the bottom end of the fixed rod (331).

2. The sampling device for detection of Shiga toxin-producing Escherichia coli according to claim 1, characterized in that, The sampling clamp (33) also includes a connecting rod (330) connected to the end of the inner sleeve rod (32). The end of the fixing rod (331) away from the sampling spoon (332) is rotatably set with the bottom end of the connecting rod (330). A compression spring (333) is fixedly connected between the two sets of fixing rods (331).

3. The sampling device for detection of Shiga toxin-producing Escherichia coli according to claim 2, characterized in that, The top ends of the two sets of connecting rods (330) are connected to the same connecting block (334), and the inner wall of the inner sleeve rod (32) is provided with a threaded groove, and the connecting block (334) is rotatably connected to the threaded groove.

4. The sampling device for detection of Shiga toxin-producing Escherichia coli according to claim 1, characterized in that, The outer ring of the outer sleeve rod (31) is provided with an external thread (310) along its height direction, and the top of the sampling cylinder (1) is provided with a corresponding threaded opening (12); The inner sleeve rod (32) and the outer sleeve rod (31) have multiple slots (320) arranged in an array along their height direction on their side walls.

5. The sampling device for detection of Shiga toxin-producing Escherichia coli according to claim 4, characterized in that, A groove (13) is provided on one side of the threaded opening (12) at the top of the sampling cylinder (1). A spring (15) is fixedly connected to the side wall of the groove (13). A locking block (14) is connected to the other end of the spring (15). The locking block (14) has an "L" shaped structure, and one end of the locking block (14) is locked to the locking opening (320). The top outer ring of the sampling tube (1) is also provided with a hand ring (11) that is fixedly connected to it.

6. The sampling device for detection of Shiga toxin-producing Escherichia coli according to claim 1, wherein The top of the inner sleeve rod (32) is fixedly connected to a fixing plate (321), and a rotating frame (322) is provided on the top of the fixing plate (321).

7. The sampling device for detection of Shiga toxin-producing Escherichia coli according to claim 1, characterized in that, The bottom of the lower cover (2) is fixedly connected to a rotating hook (22), and the top of the lower cover (2) is provided with a collection groove (21) that is threadedly connected to the inner wall of the bottom of the sampling cylinder (1). The bottom of the sampling tube (1) is provided with a sealing ring (23) that seals the lower cover (2) and the sampling tube (1).

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