Aseptic sampling device for food detection

Abstract

The utility model discloses a sterile sampling device for food detection belongs to food detection technical field, including first needle cylinder, the inside of first needle cylinder is provided with first piston, and the upper fixed connection of first piston has second pull rod, and the below of first needle cylinder is provided with needle head, the utility model discloses a connection expansion mechanism can be arranged, can prevent sample accidental self needle head discharge through the cooperation of first valve and connecting pipe etc.

Description

Technical Field

[0001] This utility model belongs to the field of food testing technology, specifically relating to a sterile sampling device for food testing. Background Technology

[0002] Food refers to all finished products and raw materials intended for human consumption or drinking, as well as items that are traditionally both food and medicinal materials, but excludes items intended for therapeutic purposes. From the perspective of food hygiene legislation and management, the broader concept of food also includes: the raw materials used in food production, the substances and environment that come into contact with the raw materials during cultivation and breeding, food additives, all packaging materials that come into direct or indirect contact with food, facilities, and the environment that affects the original quality of food.

[0003] Existing aseptic sampling devices for food testing cannot prevent samples from being accidentally discharged from the needle after sampling, and cannot expand the capacity of the device when needed, thus reducing the device's working capacity; furthermore, it is inconvenient to disinfect and clean the parts of the device surface that come into contact with food or other objects when needed, thereby increasing the possibility of bacterial contamination of the device surface and reducing the device's practicality. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a sterile sampling device for food testing, characterized by high working capacity and strong practicality.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sterile sampling device for food testing, comprising a first syringe, a first piston disposed on the inner side of the first syringe, a second pull rod fixedly connected above the first piston, a needle disposed below the first syringe, the first syringe and the needle being connected by a connecting expansion mechanism, and a cleaning and disinfection mechanism disposed on one side of the needle.

[0006] The connecting expansion mechanism includes a connecting cylinder. The connecting cylinder is fixedly installed below the first syringe and above the needle. A connecting tube is fixedly installed between the connecting cylinder and the needle. A first valve is fixedly installed near the center of the connecting tube. An expansion component is provided on one side of the connecting cylinder.

[0007] Preferably, the expansion assembly includes an infusion tube, an infusion tube is fixedly installed on one side of the connecting tube near the top, a second syringe is provided on the side of the infusion tube away from the connecting tube, a second piston is provided on the inner side of the second syringe, and a first pull rod is fixedly installed on the side of the second piston away from the infusion tube.

[0008] Preferably, a second valve is fixedly installed near the center of the infusion tube.

[0009] Preferably, a threaded sleeve is fixedly installed at the end of the second syringe near the infusion tube.

[0010] Preferably, the cleaning and disinfection mechanism includes a connecting rope, with the connecting tube having a connecting rope on the side away from the infusion tube, a connecting block fixedly installed below the connecting rope, and an alcohol swab fixedly installed below the connecting block.

[0011] Preferably, a threaded block is fixedly installed on the top end of the connecting rope near the side of the first syringe, and a fixing sleeve is fixedly installed on one side of the first syringe and outside the threaded block.

[0012] Preferably, a protective sleeve is threadedly installed on the outside of the connecting block and on the outside of the alcohol swab.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By setting up a connecting expansion mechanism, this utility model can prevent the sample from being accidentally discharged from the needle after sampling through the cooperation of the first valve and connecting tube, thereby better meeting the needs of the work. Furthermore, it can expand the capacity of the device through the cooperation of the second syringe and other structures when needed, thereby improving the working capacity of the device.

[0015] 2. By setting up a cleaning and disinfection mechanism, this utility model can disinfect and clean the parts of the device that come into contact with food or other objects when needed, using structures such as alcohol swabs, thereby reducing the possibility of bacterial contamination on the device surface and improving the practicality of the device. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a three-dimensional sectional view of the present invention;

[0018] Figure 3 This is a three-dimensional sectional view of the connecting expansion mechanism of this utility model;

[0019] Figure 4 This is a three-dimensional sectional view of the cleaning and disinfection mechanism of this utility model.

[0020] In the diagram: 1. First syringe; 2. First piston; 3. Connecting expansion mechanism; 31. Connecting tube; 32. First valve; 33. Connecting tube; 34. Expansion assembly; 341. First pull rod; 342. Second syringe; 343. Second piston; 344. Threaded sleeve; 345. Second valve; 346. Infusion tubing; 4. Needle; 5. Cleaning and disinfection mechanism; 51. Connecting rope; 52. Connecting block; 53. Protective tube; 54. Alcohol swab; 55. Threaded block; 56. Fixing sleeve; 6. Second pull rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] Please see Figure 1-4 The present invention provides the following technical solution: a sterile sampling device for food testing, including a first syringe 1, a first piston 2 is provided on the inner side of the first syringe 1, a second pull rod 6 is fixedly connected above the first piston 2, a needle 4 is provided below the first syringe 1, the first syringe 1 and the needle 4 are connected by a connecting expansion mechanism 3, and a cleaning and disinfection mechanism 5 is provided on one side of the needle 4.

[0024] The connecting expansion mechanism 3 includes a connecting cylinder 31. The connecting cylinder 31 is fixedly installed below the first syringe 1 and above the needle 4. A connecting tube 33 is fixedly installed between the connecting cylinder 31 and the needle 4. A first valve 32 is fixedly installed near the center of the connecting tube 33. An expansion component 34 is provided on one side of the connecting cylinder 31.

[0025] Specifically, the expansion assembly 34 includes an infusion tube 346. The infusion tube 346 is fixedly installed on one side of the connecting cylinder 31 near the top. A second syringe 342 is provided on the side of the infusion tube 346 away from the connecting cylinder 31. A second piston 343 is provided inside the second syringe 342. A first pull rod 341 is fixedly installed on the side of the second piston 343 away from the infusion tube 346. By adopting the above technical solution, the capacity of the device can be expanded by the cooperation of the second syringe 342 and other structures, thereby better meeting the needs of the work.

[0026] Specifically, a second valve 345 is fixedly installed near the center of the infusion tube 346. By adopting the above technical solution, the staff can prevent the sample from passing through the infusion tube 346 when needed, thereby better meeting the needs when expansion is not required.

[0027] Specifically, a threaded sleeve 344 is fixedly installed at one end of the second syringe 342 near the infusion tube 346. By adopting the above technical solution, the staff can connect or disconnect the second syringe 342 and the infusion tube 346 through the threaded sleeve 344 when needed, which facilitates the staff to install and remove the second syringe 342 and other structures.

[0028] In this embodiment, when food testing requires aseptic sampling, the device is originally in aseptic packaging. After tearing open the packaging and taking out the device, if the capacity of the first syringe 1 and the connecting tube 31 in the expansion mechanism 3 is insufficient, the threaded sleeve 344 on the second syringe 342 in the expansion assembly 34 can be connected to the infusion tube 346 on the connecting tube 31 by thread. Then, the first valve 32 is opened, the needle 4 is inserted into the liquid food, and the second pull rod 6 is pulled, thereby driving the first piston 2 to move. Then, a portion of the liquid food is drawn into the connecting tube 31 and the first syringe 1 through the needle 4 and the connecting tube 33.

[0029] Then open the second valve 345, pull the first lever 341, thereby moving the second piston 343, and then drawing the liquid food in the connecting tube 31 into the second syringe 342 through the infusion tube 346. At this time, another part of the liquid food will pass through the needle 4 and the connecting tube 33 into the connecting tube 31 under the suction of the second piston 343 and other structures. During this process, the staff should be careful not to let the position of the second lever 6 move. Then close the first valve 32, and the sampling is completed.

[0030] Example 2

[0031] The difference between this embodiment and embodiment 1 is that the cleaning and disinfection mechanism 5 includes a connecting rope 51. The connecting rope 51 is provided on the side of the connecting cylinder 31 away from the infusion tube 346. A connecting block 52 is fixedly installed below the connecting rope 51. An alcohol swab 54 is fixedly installed below the connecting block 52. By adopting the above technical solution, the surface of the device that comes into contact with food or other objects can be disinfected and cleaned when needed by the cooperation of the alcohol swab 54 and other structures, thereby reducing the possibility of bacterial contamination on the surface of the device.

[0032] Specifically, a threaded block 55 is fixedly installed on the top of the connecting rope 51 near the first syringe 1, and a fixing sleeve 56 is fixedly installed on one side of the first syringe 1 and outside the threaded block 55. By adopting the above technical solution, the staff can connect or separate the connecting rope 51 and the first syringe 1 through the threaded block 55 and the fixing sleeve 56 when needed, which facilitates the staff to install and remove the connecting rope 51 and alcohol swabs 54 and other structures.

[0033] Specifically, a protective sleeve 53 is threadedly installed on the outside of the connecting block 52 and on the outside of the alcohol cotton 54. By adopting the above technical solution, the staff can protect and isolate the alcohol cotton 54 through the protective sleeve 53, thereby reducing the possibility of weakening the disinfection effect of the alcohol cotton 54.

[0034] In this embodiment, when the device surface comes into contact with food or other items, the staff can unscrew the protective tube 53 in the cleaning and disinfection mechanism 5 from the connecting block 52, and then pick up the connecting block 52 and the alcohol cotton 54 on it to wipe and disinfect the part of the device surface that comes into contact with food or other items, thereby reducing the possibility of bacterial contamination on the device surface. The threaded block 55 and the fixing sleeve 56 are threadedly connected, thereby serving to connect the first syringe 1 and the connecting rope 51.

[0035] The working principle and usage process of this utility model are as follows: When food testing requires the use of the device for aseptic sampling, the device is originally in aseptic packaging. Tear open the packaging, take out the device, and if the capacity of the first syringe 1 and the connecting cylinder 31 in the expansion mechanism 3 is insufficient, the threaded sleeve 344 on the second syringe 342 in the expansion assembly 34 can be connected to the infusion tube 346 on the connecting cylinder 31 by thread. Then, open the first valve 32, insert the needle 4 into the liquid food, pull the second pull rod 6, thereby driving the first piston 2 to move, and then draw a part of the liquid food into the connecting cylinder 31 and the first syringe 1 through the needle 4 and the connecting tube 33.

[0036] Then open the second valve 345, pull the first lever 341, thereby moving the second piston 343, and then drawing the liquid food in the connecting tube 31 into the second syringe 342 through the infusion tube 346. At this time, another part of the liquid food will pass through the needle 4 and the connecting tube 33 into the connecting tube 31 under the suction of the second piston 343 and other structures. During this process, the staff should be careful not to let the position of the second lever 6 move. Then close the first valve 32, and the sampling is completed.

[0037] When the device surface comes into contact with food or other items, the staff can unscrew the protective tube 53 in the cleaning and disinfection mechanism 5 from the connecting block 52, and then pick up the connecting block 52 and the alcohol swab 54 on it to wipe and disinfect the part of the device surface that came into contact with food or other items, thereby reducing the possibility of bacterial contamination on the device surface. The threaded block 55 and the fixed sleeve 56 are threadedly connected, thus serving to connect the first syringe 1 and the connecting rope 51.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sterile sampling device for food testing, comprising a first syringe (1), a first piston (2) disposed inside the first syringe (1), a second pull rod (6) fixedly connected above the first piston (2), and a needle (4) disposed below the first syringe (1), characterized in that: The first syringe (1) and the needle (4) are connected by a connecting expansion mechanism (3), and a cleaning and disinfection mechanism (5) is provided on one side of the needle (4); The connecting expansion mechanism (3) includes a connecting cylinder (31). The connecting cylinder (31) is fixedly installed below the first syringe (1) and above the needle (4). A connecting tube (33) is fixedly installed between the connecting cylinder (31) and the needle (4). A first valve (32) is fixedly installed near the center of the connecting tube (33). An expansion component (34) is provided on one side of the connecting cylinder (31).

2. The aseptic sampling device for food testing according to claim 1, characterized in that: The expansion assembly (34) includes an infusion tube (346). The infusion tube (346) is fixedly installed on one side of the connecting tube (31) near the top. A second syringe (342) is provided on the side of the infusion tube (346) away from the connecting tube (31). A second piston (343) is provided on the inner side of the second syringe (342). A first pull rod (341) is fixedly installed on the side of the second piston (343) away from the infusion tube (346).

3. The aseptic sampling device for food testing according to claim 2, characterized in that: A second valve (345) is fixedly installed near the center of the infusion tube (346).

4. The aseptic sampling device for food testing according to claim 2, characterized in that: The second syringe (342) has a threaded sleeve (344) fixedly installed at one end near the infusion tube (346).

5. The aseptic sampling device for food testing according to claim 2, characterized in that: The cleaning and disinfection mechanism (5) includes a connecting rope (51). The connecting tube (31) is provided with the connecting rope (51) on the side away from the infusion tube (346). A connecting block (52) is fixedly installed below the connecting rope (51). An alcohol swab (54) is fixedly installed below the connecting block (52).

6. The aseptic sampling device for food testing according to claim 5, characterized in that: A threaded block (55) is fixedly installed on the top of the connecting rope (51) near the first syringe (1), and a fixing sleeve (56) is fixedly installed on one side of the first syringe (1) and outside the threaded block (55).

7. The aseptic sampling device for food testing according to claim 5, characterized in that: A protective sleeve (53) is threadedly installed on the outside of the connecting block (52) and on the outside of the alcohol cotton (54).

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