Portable food microorganism sampling device
By using the design of the limiting device and sponge sleeve in the food microbial sampling device, the cross-infection and sample damage during liquid food sampling are solved, and portability and reliability of detection results are achieved.
Patent Information
- Application Number
- CN202420091429.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-15
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-01-15
AI Technical Summary
Existing food microbial sampling devices are prone to cross-infection when sampling liquid food, and the sample container is easily damaged during carrying, affecting the detection results and portability.
A portable food microbial sampling device is designed, using a limiting device and a storage device to directly introduce the sample into the storage case through negative pressure to prevent the sample from entering the syringe, and the sponge cover is used to buffer external forces to ensure the sealing and protection of the sample.
It effectively avoids cross infection in subsequent testing, improves the portability of the sampling device and the protection of the sample, ensures the accuracy of the detection results and the safe transportation of the sample.
Smart Images
Figure CN222182255U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of food microorganism sampling, in particular to a portable food microorganism sampling device. Background Art
[0002] Avoiding and reducing food contamination by microorganisms is the key work content to ensure food safety. Microbial contamination of food is characterized by extensiveness and uncertainty. This requires doing a good job in food microbiological inspection in actual work to ensure the food safety of consumers. The collection and preservation of food microbiological inspection samples is the basis for ensuring the quality of microbiological inspection work and is also an important factor affecting the inspection results. When collecting and preserving food microbiological inspection samples, it is necessary to ensure aseptic operation during the collection process, select representative samples and seal and check marks, and keep them as original as possible during storage and transportation. At the same time, different inspection technologies should be selected according to actual conditions and different types of possible contaminating microorganisms to ensure the inspection quality. When sampling liquid food, the existing food microbiological sampling usually uses a syringe to extend into the food for extraction, and then injects it into the sample container for storage, resulting in residual samples in the syringe. When extracting different samples, it is easy to cause cross infection, affecting the subsequent test results, and the container containing the sample may be damaged by external force during the carrying process, causing damage to the sample, which is not conducive to sampling and detection. Therefore, we propose a portable food microbiological sampling device to solve the above-mentioned problems. Utility Model Content
[0003] In view of the above problems, the utility model provides a portable food microorganism sampling device, which has good practicality, can avoid cross infection in subsequent continuous detection, and can also facilitate continuous sampling, so that the portability of the device is greatly improved.
[0004] The technical solution of the utility model is:
[0005] A portable food microorganism sampling device comprises a syringe housing, the inner surface of which is provided with a piston, a connecting rod is fixedly connected to the middle of the upper surface of the piston, a limiting device is arranged inside the syringe housing, a connecting ring is fixedly connected to the outer surface of the output end of the syringe housing, a storing device is threadedly connected to the outer surface of the connecting ring, the limiting device comprises a limiting plate and a fixing rod, an inner hole is provided inside the limiting plate, the storing device comprises a containing sleeve, a sponge sleeve is fixedly connected to the outer surface of the containing sleeve, and a label area is arranged on the outer surface of the sponge sleeve.
[0006] In a further technical solution, the outer surface of the limit plate is fixedly connected to the inner surface of the syringe housing, and the bottom end of the fixing rod is fixedly connected to the upper surface of the piston.
[0007] Through the provided limit plate, the negative pressure generated in the syringe allows the sample to enter the containing sleeve shell until the piston contacts the limit plate. The limit plate allows the piston to move to the maximum extent to avoid excessive sample contamination on the syringe shell.
[0008] In a further technical solution, the outer surface of the fixing rod is slidably connected to the inside of the limiting plate, and the number of the internal holes is several.
[0009] Through the provided inner hole and utilizing the provided multiple inner holes, the air column in the syringe housing can be discharged when the piston moves upward.
[0010] In a further technical solution, the storage device further includes a first cover and a second cover, wherein the threads on the inner surface of the first cover are matched with the internal threads on the top of the container shell, and the threads on the inner surface of the second cover are matched with the external threads on the bottom of the container shell.
[0011] By means of the first sealing cover and the second sealing cover, the containing sleeve can be tightly covered after the sample is contained in the containing sleeve, so that the sample can be sealed and preserved in the containing sleeve.
[0012] In a further technical solution, the outer surface of the top of the containing sleeve shell is threadedly connected to the outer surface of the connecting ring, and the outer surface of the sponge sleeve is provided with a visible groove.
[0013] By providing the sponge sleeve, the elasticity of the sponge material can be used to buffer the force applied to the storage device, thereby preventing the storage sleeve from being damaged due to collision.
[0014] The beneficial effects of the utility model are:
[0015] 1. After the storage device is installed at the bottom of the syringe housing through the limiting device, the negative pressure generated in the syringe is used to make the sample enter the storage device until the piston contacts the limiting plate, so that the piston has the maximum movement limit. At this time, the required sample is completely stored in the storage device, and the sample does not enter the syringe. The syringe can be used repeatedly to avoid cross infection in subsequent continuous testing;
[0016] 2. Through the storage device, the threads on the containing shell are matched with the threads on the outer connecting ring of the syringe shell, so that the storage device can be easily installed and disassembled, which is convenient for continuous sampling, and the portability of the device is greatly improved. In addition, the sponge pad can prevent damage due to external force during carrying, thereby improving the protection of the sample. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1It is a schematic diagram of the overall structure of the embodiment of the utility model;
[0018] Figure 2 It is a schematic cross-sectional view of the overall structure of the embodiment of the utility model;
[0019] Figure 3 It is a schematic diagram of the structure of the limit device described in the embodiment of the utility model;
[0020] Figure 4 It is a structural schematic diagram of the storage device described in the embodiment of the utility model.
[0021] Description of reference numerals:
[0022] 1. Syringe housing; 2. Piston; 3. Connecting rod; 4. Limiting device; 41. Limiting plate; 42. Fixing rod; 43. Internal hole; 5. Connecting ring; 6. Preserving device; 61. Container shell; 62. Sponge cover; 63. Label area; 64. Visual slot; 65. First cover; 66. Second cover. DETAILED DESCRIPTION
[0023] The embodiments of the present utility model will be further described below in conjunction with the accompanying drawings.
[0024] Embodiment 1:
[0025] like Figure 1-Figure 4 As shown, a portable food microorganism sampling device comprises a syringe housing 1, the inner surface of the syringe housing 1 is provided with a piston 2, a connecting rod 3 is fixedly connected to the middle of the upper surface of the piston 2, a limiting device 4 is arranged inside the syringe housing 1, a connecting ring 5 is fixedly connected to the outer surface of the output end of the syringe housing 1, a storing device 6 is threadedly connected to the outer surface of the connecting ring 5, the limiting device 4 comprises a limiting plate 41 and a fixing rod 42, an inner hole 43 is opened inside the limiting plate 41, the storing device 6 comprises a containing shell 61, a sponge cover 62 is fixedly connected to the outer surface of the containing shell 61, and a label area 63 is arranged on the outer surface of the sponge cover 62.
[0026] In a further technical solution, the outer surface of the limit plate 41 is fixedly connected to the inner surface of the syringe housing 1, the bottom end of the fixed rod 42 is fixedly connected to the upper surface of the piston 2, the outer surface of the fixed rod 42 is slidably connected to the inside of the limit plate 41, and the number of internal holes 43 is several. The storage device 6 also includes a first cover 65 and a second cover 66. The thread on the inner surface of the first cover 65 is adapted to the internal thread on the top of the containing shell 61, and the thread on the inner surface of the second cover 66 is adapted to the external thread on the bottom of the containing shell 61. The outer surface of the top of the containing shell 61 is threadedly connected to the outer surface of the connecting ring 5, and a visible groove 64 is provided on the outer surface of the sponge cover 62.
[0027] The working principle of the above technical solution is as follows:
[0028] When in use, the containing shell 61 is connected with the thread on the inner surface of the top end thereof and the thread on the outer surface of the connecting ring 5 at the bottom of the syringe housing 1, and the second sealing cap 66 is screwed down at the same time. After the installation between the containing shell 61 and the syringe housing 1 is completed, the bottom end of the containing shell 61 is inserted into the liquid food, and the connecting rod 3 is pulled upward to make the piston 2 move upward along the inner surface of the syringe housing 1. The negative pressure generated in the syringe housing 1 and the containing shell 61 during this process is used to draw up the liquid food until the upper surface of the piston 2 contacts the lower surface of the limiting plate 41, and the piston 2 reaches the maximum movement position. At this time, the liquid food in the containing shell 61 reaches the required sampling amount. , and the page of the food is lower than the bottom end of the syringe housing 1, screw the second cover 66 on the bottom end of the containing shell 61, cover the bottom of the containing shell 61, and then unscrew the containing shell 61 from the connecting ring 5 at the bottom of the syringe housing 1, cover the first cover 65 tightly on the top of the containing shell 61, and write the corresponding information of the sample on the label area 63, that is, one sampling is completed, and a new storage device 6 can be replaced to continue sampling other liquid foods. If the storage device 6 is hit during carrying, external force acts on the sponge sleeve 62. The elasticity of the sponge material can buffer the force exerted on the storage device 6, thereby preventing the containing shell 61 from being damaged due to collision.
[0029] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.
Claims
1. A portable food microorganism sampling device, comprising a syringe housing, characterized in that: A piston is provided on the inner surface of the syringe housing, a connecting rod is fixedly connected to the middle of the upper surface of the piston, a limiting device is provided inside the syringe housing, a connecting ring is fixedly connected to the outer surface of the output end of the syringe housing, a storing device is threadedly connected to the outer surface of the connecting ring, the limiting device includes a limiting plate and a fixing rod, an inner hole is provided inside the limiting plate, the storing device includes a containing shell, a sponge cover is fixedly connected to the outer surface of the containing shell, and a label area is provided on the outer surface of the sponge cover.
2. A portable food microorganism sampling device according to claim 1, characterized in that: The outer surface of the limiting plate is fixedly connected to the inner surface of the syringe housing, and the bottom end of the fixing rod is fixedly connected to the upper surface of the piston.
3. A portable food microorganism sampling device according to claim 1, characterized in that: The outer surface of the fixing rod is slidably connected to the inside of the limiting plate, and the number of the inner holes is several.
4. A portable food microorganism sampling device according to claim 1, characterized in that: The storage device also includes a first cover and a second cover, wherein the threads on the inner surface of the first cover are matched with the internal threads on the top of the container shell, and the threads on the inner surface of the second cover are matched with the external threads on the bottom of the container shell.
5. A portable food microorganism sampling device according to claim 1, characterized in that: The outer surface of the top of the containing sleeve shell is connected to the outer surface of the connecting ring through a thread, and a visible groove is formed on the outer surface of the sponge sleeve.