A modular sealed sampling device and equipment

Abstract

This invention discloses a modular sealed sampling device and equipment, relating to the field of biochemical pollution sampling technology. It includes a base, a sample protection cylinder, and a sampling tool. The base has multiple mounting slots, each with a circumferentially arranged first spring plunger. The sample protection cylinder has an internal cavity for accommodating the sampling tool. One end of the sample protection cylinder has a groove for engaging the spring plunger, and the other end has an elastic pad fixed to its end face. A second spring plunger is located on the inner wall of the sample protection cylinder near the elastic pad. The sampling tool includes an anti-slip mechanism, a cover, and a terminal sampling component connected in sequence. The cover has a fixing groove on its side for engaging the second spring plunger, and the terminal sampling component is detachably connected to the cover. The sampling tool of this invention can form a sealed structure with the sample protection cylinder, meeting sample preservation requirements. Furthermore, the sampling tool can be selected according to different samples, making it suitable for various biological sampling methods.

Description

Technical Field

[0001] This invention relates to the field of biochemical pollution sampling technology, and in particular to a modular sealed sampling device and equipment. Background Technology

[0002] In order to assess the extent of pollution, identify the types of pollution sources, and take targeted measures, it is necessary to enter the target area to collect samples of air, soil, and water. For hazardous biochemicals, bacteria, viruses, and other targets, vehicle-mounted equipment can rarely complete data analysis and testing on-site. Therefore, it is necessary to obtain samples through sampling and then conduct testing and analysis in a laboratory at the rear.

[0003] Existing technology discloses an environmental virus sampling robot, including an AGV (Automated Guided Vehicle), a robotic arm, several sampling bottles with caps, a cap-opening mechanism, and a grasping mechanism. The controller controls the cap-opening mechanism to open the sampling bottle and the grasping mechanism to grasp the sampling tool inside the bottle based on the position information of an idle sampling bottle. It can also control the robotic arm to move based on position information to perform virus sampling, placing the sampling tool into the corresponding sampling bottle, and controlling the cap-opening mechanism to close the bottle. While this solution can complete sampling of a specified target using a sampling tool, the tool is relatively limited and not applicable to different targets. Furthermore, placing the sampling tool directly into the sampling bottle after sampling does not create a good seal, failing to properly preserve samples from highly contaminated targets. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a modular sealed sampling device and equipment. The sampling tool can form a sealed structure with the sample protection cylinder to meet the sample preservation requirements. At the same time, the sampling tool can be selected according to different samples and is suitable for various biological sampling methods.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] In a first aspect, embodiments of the present invention provide a modular sealed sampling device, comprising:

[0007] The base has multiple mounting slots, and several first spring plungers are arranged circumferentially in the mounting slots.

[0008] The sample protection tube has an internal cavity for accommodating the sampling tool. One end of the sample protection tube has a groove for engaging the spring plunger, and the other end face is fixed with an elastic pad. A second spring plunger is provided on the inner wall of the sample protection tube near the elastic pad.

[0009] The sampling tool includes an anti-slip mechanism, a cover, and an end sampling component connected in sequence. The cover has a fixing groove on its side for cooperating with a second spring plunger. The end sampling component is detachably connected to the cover.

[0010] As a further implementation, the end sampling component is a tweezer, the cover is a first cover with a fixing hole, and the tweezer has a button protruding from the fixing hole.

[0011] As a further implementation, the tweezers include two intersecting gripping parts, one end of which is rotatably connected to a corresponding movable part;

[0012] The movable part and the button form a pressing structure, and a spring is sleeved on the outside of the movable part.

[0013] As a further implementation, the end sampling component is at least one of a cotton swab, a shovel, or a bucket, and the cover is a second cover with a threaded hole.

[0014] As a further implementation, the cover has a protrusion that can fit into an elastic pad;

[0015] The protrusion is provided with a rotating locking position, and the sample protection cylinder is provided with a spring pin in the circumferential direction that cooperates with the rotating locking position.

[0016] As a further implementation, the sample protection cylinder is also provided with a release groove on its side that communicates with the groove, and the first spring plunger forms a separation position when it corresponds to the release groove.

[0017] As a further implementation, the anti-slip mechanism includes an anti-slip body with multiple anti-slip protrusions evenly distributed along the axial direction of the anti-slip body.

[0018] As a further implementation, the fixing groove is inverted L-shaped and has an opening on the bottom surface of the cover.

[0019] Secondly, embodiments of the present invention also provide a modular sealed sampling device, including the aforementioned sampling device.

[0020] As a further implementation, a robotic arm is also included, which is used to grasp the sampling tool.

[0021] The beneficial effects of this invention are as follows:

[0022] (1) The end sampling component of the present invention is detachably connected to the cover, and different sampling tools can be selected for different sampling samples, which is suitable for various biological sampling. The sampling tool is provided with a fixing groove, and the sample protection tube is provided with a second spring plunger that cooperates with the fixing groove. At the same time, the base is installed with a first spring plunger, and the sample protection tube is provided with a groove that cooperates with the first spring plunger. Thus, after the mechanical gripper picks up the sampling tool, it only needs to rotate a certain angle to remove the sampling tool from the sample protection tube. After the sampling is completed, the sampling tool carrying the sample is placed in the cavity of the sample protection tube, and the sampling tool is fixed on the sample protection tube by rotating a certain angle in the opposite direction, and the sample is sealed in the sample protection tube.

[0023] (2) The fixing groove provided on the sampling tool of the present invention allows the sampling tool to be quickly removed from or installed on the sample protection tube. The fixing groove is inverted L-shaped and, together with the elastic pad on the sample protection tube, can ensure the sealing of the sampling tool when installed on the sample protection tube. The mounting groove and the first spring plunger provided on the base allow the sample protection tube to be quickly picked up and put down, so that the sample can be quickly sent for testing under good sealing conditions. The sample protection tube is also provided with a release groove that communicates with the groove. When extracting the sample, the sample protection tube can be rotated to the separation position and the sample protection tube can be removed from the base for sample extraction. Attached Figure Description

[0024] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0025] Figure 1 This is an assembly diagram of the present invention according to one or more embodiments;

[0026] Figure 2 This is a schematic diagram of the sampling tool detaching from the sample protection tube according to one or more embodiments of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the first sampling tool according to one or more embodiments of the present invention;

[0028] Figure 4 This is a schematic diagram of the first cover structure according to one or more embodiments of the present invention;

[0029] Figure 5 This is a schematic diagram of the tweezers structure according to one or more embodiments of the present invention;

[0030] Figure 6 This is a schematic diagram of the structure of the second sampling tool according to one or more embodiments of the present invention;

[0031] Figure 7This is a schematic diagram of the second cover structure according to one or more embodiments of the present invention;

[0032] Figure 8 This is a schematic diagram of the sample protection tube structure according to one or more embodiments of the present invention;

[0033] Figure 9 This is a schematic diagram of the base structure according to one or more embodiments of the present invention.

[0034] The components include: 1. Sampling tool; 2. Sample protection tube; 3. Base; 111. First cover; 112. Tweezers; 1111. Anti-slip mechanism; 1112. Fixing hole; 1113. Fixing groove; 1114. Rotating locking position; 1121. Button; 1122. Spring; 1123. Movable part; 1124. Clamping part; 121. Second cover; 122. Cotton swab; 123. Shovel; 124. Bucket body; 1211. Anti-slip mechanism; 1212. Threaded hole; 1213. Fixing groove; 1214. Rotating locking position; 21. Elastic pad; 22. Second spring plunger; 23. Groove; 24. Spring pin; 25. Retaining ring; 26. Release groove; 31. Mounting groove; 32. Mounting hole; 33. First spring plunger. Detailed Implementation

[0035] Example 1:

[0036] In a typical embodiment of the present invention, such as Figure 1 As shown, a modular sealed sampling device is presented.

[0037] The design of sampling tools must, on the one hand, enable the smooth and easy collection of samples from designated targets, and on the other hand, ensure the proper preservation of the collected samples to prevent contamination or leakage that could harm personnel. Currently available sampling equipment typically uses a single sampling tool and does not consider the sealing between the tool and the sampling bottle, which can easily lead to sample leakage and pose safety hazards.

[0038] Based on this, this embodiment provides a modular sealed sampling device, including a sampling tool 1, a sample protection cylinder 2, and a base 3. Multiple sample protection cylinders 2 are mounted on the base 3, and the sampling tool 1 cooperates with the sample protection cylinder 2. During use, the mechanical grippers can selectively grip different sampling tools 1 to collect samples. After gripping the sampling tool 1, simply rotating it a certain angle removes the sampling tool 1 from the sample protection cylinder 2. After sampling is complete, the sample-carrying portion of the sampling tool 1 is placed inside the sample protection cylinder cavity, and a reverse rotation a certain angle fixes the sampling tool 1 onto the sample protection cylinder 2, sealing the sample inside. For sample extraction, the sample protection cylinder 2 can be rotated to the separation position and removed from the base 3 for sample extraction.

[0039] The modular sealed sampling device described above will now be described in detail with reference to the accompanying drawings.

[0040] like Figure 1 and Figure 2 As shown, the base 3 is equipped with multiple sample protection cylinders 2. To facilitate the gripping and placement by the mechanical grippers, the sample protection cylinders 2 in this embodiment are arranged in multiple rows and columns, with a certain interval between adjacent sample protection cylinders 2 to leave operating space for the mechanical grippers. The sample protection cylinders 2 and the base 3 are detachably connected so that the samples can be extracted through the sample protection cylinders 2 after sample collection.

[0041] The form of the base 3 can be set according to actual requirements. For example, it can be set as a rectangular plate with multiple rows and columns of mounting slots; or, the base 3 can include multiple rectangular mounting units, with adjacent mounting units connected by connecting plates, and each mounting unit having mounting slots spaced at a certain distance along its length, etc.; as long as the installation requirements of the sample protection tube 2 are met.

[0042] Taking base 3 with multiple mounting units as an example, the following is a detailed explanation: Figure 9 As shown, the mounting unit has multiple mounting slots 31 for fixing the sample protection cylinder 2, which is a circular structure. First spring plungers 33 are mounted on opposite radial sides of each mounting slot 31, limiting the position of the sample protection cylinder 2. The mounting unit also has multiple mounting holes 32, through which connectors, such as screws, are installed to allow the base 3 to be mounted on other equipment, for example, the base 3 can be fixed to a robot using screws.

[0043] like Figure 8 As shown, the sample protection tube 2 has a cylindrical structure, and the inside is a cavity to accommodate the sampling tool 1. The outer wall of the sample protection tube 2 has a groove 23 circumferentially opened near the bottom. The groove 23 cooperates with the first spring plunger 33 in the base 3 to fix the sample protection tube 2 to the base 3.

[0044] The groove 23 is provided with a release groove 26 in the circumferential direction corresponding to the number of first spring plungers 33. The release groove 26 passes through the groove 23 along the bottom surface of the sample protection tube 2 and extends upward to a certain length. When the sample protection tube 2 is rotated so that the first spring plungers 33 correspond to the release groove 26, the separation position is reached, so that the sample protection tube 2 can be smoothly separated from the base 3.

[0045] An elastic pad 21 is fixed to the top of the sample protection cylinder 2. The elastic pad 21, in conjunction with the sampling tool 1, creates a sealed environment inside the sample protection cylinder 2, thus ensuring proper sample preservation. In this embodiment, the elastic pad 21 is a rubber pad, which is low in cost; however, in other embodiments, other elastic materials can be used instead.

[0046] The sample protection tube 2 has multiple protrusions distributed circumferentially near the top. Spring pins 24 are installed inside the protrusions, and the spring pins 24 are axially aligned with the sample protection tube 2. A retaining ring 25 is installed at the bottom of the protrusion, fixed to the outer wall of the sample protection tube 2, to hold the spring pins 24 in place and prevent them from falling out. A second spring plunger 22 is also installed circumferentially around the sample protection tube 2, and is radially aligned with the sample protection tube 2. The spring pins 24 prevent the sampling tool 1 from rotating under pressure.

[0047] At least two types of tools are used to meet different sampling requirements; in this embodiment, a first sampling tool and a second sampling tool are provided. The end of the first sampling tool is a tweezer 112, and the end of the second sampling tool is a different structure.

[0048] like Figure 3 As shown, the first sampling tool includes a first cover 111, an anti-slip mechanism 1111 installed on the top of the first cover 111, and tweezers 112 installed on the bottom of the first cover 111. The anti-slip mechanism 1111 facilitates the mechanical gripper to grasp the first sampling tool and prevents the first sampling tool from falling off during movement.

[0049] In this embodiment, the anti-slip mechanism 1111 includes an anti-slip body, which is a cylindrical structure. Multiple anti-slip protrusions are evenly distributed along the axial direction of the anti-slip body to form a structure similar to an external thread, thereby increasing the friction with the mechanical gripper.

[0050] like Figure 3 and Figure 4 As shown, the first cover 111 has an installation cavity inside. Tweezers 112 enter the installation cavity through the bottom opening of the first cover 111 and cooperate with the fixing hole 1112 opened on the side of the first cover 111 to realize the installation of tweezers 112.

[0051] The longitudinal section of the first cover 111 is a stepped structure, and its transverse section is a circular structure. The middle section of the first cover 111 has the largest diameter. That is, the first cover 111 has a circumferential protrusion. The bottom surface of the protrusion fits against the elastic pad 21 of the sample protection tube 2, so that the tweezers 112 can be accommodated in the sample protection tube 2.

[0052] The top of the protrusion is the mounting part, and the bottom is the fixing part. Therefore, the first cover 111 is composed of a mounting part, a protrusion, and a fixing part connected as one piece. The mounting part has fixing holes 1112 on both sides for engaging the tweezers 112. Figure 3 and Figure 4 As shown, an inverted L-shaped fixing groove 1113 is provided on the side of the fixing part. The fixing groove 1113 forms an opening on the bottom surface of the fixing part, and the fixing groove 1113 is engaged with the second spring plunger 22 on the inner wall of the sample protection cylinder 2.

[0053] The bottom surface of the protrusion (the side surface facing the fixing part) is provided with a rotating locking position 1114, which corresponds one-to-one with the spring pin 24 on the sample protection tube 2; the rotating locking position 1114 is an open structure adapted to the shape of the spring pin 24.

[0054] Since the fixing groove 1113 is an inverted L-shape, after the mechanical gripper clamps the first cover 111 and rotates it at a certain angle, under the pressure of the second spring plunger 22, the first cover 111 will be tightly fastened to the sample protection cylinder 2, and a sealed environment will be formed in the cavity of the sample protection cylinder 2 by squeezing the elastic pad 21. At this time, the fixing position 1114 is locked on the spring pin 24 to prevent the first cover 111 from popping open; when it is necessary to open, only a certain force needs to be applied to the first cover 111 to open it.

[0055] like Figure 5 As shown, the tweezers 112 has a symmetrical structure, including two gripping parts 1124 hinged together. The two gripping parts 1124 are arranged crosswise to form an X-shaped structure. One end of the gripping part 1124 is a holding end, and the other end is a mating end. The mating end of the gripping part 1124 is rotatably connected to a movable part 1123. The movable part 1123 is a columnar structure with a certain length. One end of the movable part 1123 is hinged to the gripping part 1124. A spring 1122 is sleeved on the movable part 1123, and a button 1121 is connected to the other end of the movable part 1123 corresponding to the spring 1122. The button 1121 protrudes from the fixing hole 1112.

[0056] Button 1121 is fitted onto the other end of movable part 1123, forming a pressing structure with spring 1122; the overall tweezers 112 form a lever mechanism. When the mechanical gripper presses down button 1121, the tweezers 112 will close to grip the object. When the mechanical gripper releases button 1121, the tweezers 112 will open under the action of spring 1122.

[0057] like Figure 6 As shown, the second sampling tool includes an anti-slip mechanism 1211, a second cover 121, and an end sampling component connected in sequence. The end sampling component can be a cotton swab 122, a shovel 123, or a bucket 124. Different ends are selected and installed for sampling work according to different sampling scenarios. The structure of the anti-slip mechanism 1211 is the same as that of the anti-slip mechanism 1111, and will not be described again here.

[0058] like Figure 7 As shown, since the second cover 121 can accommodate different types of end-sampling components, a threaded hole 1212 is provided on the inner top surface of the second cover 121, through which it can be detachably connected to the corresponding end-sampling component. The other structures of the second cover 121 are the same as those of the first cover 111, namely:

[0059] The second cover 121 is also provided with a fixing groove 1213, which can be locked onto the second spring plunger 22. Since the fixing groove 1213 is inverted L-shaped, after the mechanical gripper clamps the second cover 121 and rotates it at a certain angle, the second cover 121 will be tightly fastened to the sample protection cylinder 2 under the action of the pressure of the second spring plunger 22. The sample protection cylinder 2 cavity is sealed by squeezing the elastic pad 21. At this time, the fixing position 1214 is locked on the spring pin 24 to prevent the second cover 121 from popping open. When it is necessary to open, only a certain force needs to be applied to the second cover 121 to open it.

[0060] This embodiment is applicable to various biological sampling methods. During use, the mechanical gripper can select and grip different sampling tools 1 for different samples. After gripping the sampling tool 1, simply rotate it a certain angle to remove it from the sample protection cylinder 2. After sampling, place the sampling tool 1 carrying the sample into the cavity of the sample protection cylinder 2, and rotate it in the opposite direction a certain angle to fix the sampling tool on the sample protection cylinder 2, sealing the sample inside. For sample extraction, the sample protection cylinder 2 can be rotated to the separation position and removed from the base 3 for sample extraction.

[0061] Meanwhile, the fixing groove 1113 (1213) on the sampling tool 1 allows the sampling tool 1 to be quickly removed from or installed on the sample protection cylinder 2. The fixing groove 1113 (1213), together with the elastic pad 21 on the sample protection cylinder 2, ensures the sealing of the sampling tool 1 when installed on the sample protection cylinder 2. The mounting groove 31 and the first spring plunger 33 on the base 3 allow the sample protection cylinder 2 to be quickly removed and placed, so that the sample can be quickly sent for testing under good sealing conditions.

[0062] Example 2:

[0063] This embodiment provides a modular sealed sampling device, including the sampling device described in Embodiment 1, and also includes a robotic arm. The robotic arm has mechanical grippers for gripping the sampling tool 1 or the sampling tool 1 and the sample protective tube 2 as a whole.

[0064] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A modular sealed sampling device, characterized in that, include: The base has multiple mounting slots, and several first spring plungers are arranged circumferentially in the mounting slots. The sample protection tube has an internal cavity for accommodating the sampling tool. One end of the sample protection tube has a groove for engaging the first spring plunger, and the other end face is fixed with an elastic pad. A second spring plunger is provided on the inner wall of the sample protection tube near the elastic pad. The sampling tool includes an anti-slip mechanism, a cover, and an end sampling component connected in sequence. The cover has a fixing groove on its side for engaging with a second spring plunger. The end sampling component is detachably connected to the cover. The sample protection cylinder is also provided with a release groove on its side that communicates with the groove. When the first spring plunger corresponds to the release groove, a separation position is formed. The cover has a protrusion that can fit into the elastic pad; The protrusion is provided with a rotating locking position, and the sample protection cylinder is provided with a spring pin in the circumferential direction that cooperates with the rotating locking position; The sample protection tube has multiple protrusions distributed circumferentially near the top, and spring pins are installed in the protrusions. The spring pins are arranged along the axial direction of the sample protection tube. A retaining ring is installed at the bottom of the boss. The retaining ring is fixed to the outer wall of the sample protection tube and is used to block the spring pin, so that it is fixed in the boss and will not fall off.

2. The modular sealed sampling device according to claim 1, characterized in that, The end sampling component is tweezers, and the cover is a first cover with a fixing hole. The tweezers have a button protruding from the fixing hole.

3. The modular sealed sampling device according to claim 2, characterized in that, The tweezers include two intersecting gripping parts, one end of which is rotatably connected to a corresponding movable part; The movable part and the button form a pressing structure, and a spring is sleeved on the outside of the movable part.

4. The modular sealed sampling device according to claim 1, characterized in that, The end sampling component is at least one of a cotton swab, a shovel, or a bucket, and the cover is a second cover with a threaded hole.

5. A modular sealed sampling device according to any one of claims 1-4, characterized in that, The anti-slip mechanism includes an anti-slip body, with multiple anti-slip protrusions evenly distributed along the axial direction of the anti-slip body.

6. A modular sealed sampling device according to any one of claims 1-4, characterized in that, The fixing groove is inverted L-shaped and has an opening on the bottom surface of the cover.

7. A modular sealed sampling device, characterized in that, Includes the sampling device as described in any one of claims 1-4.

8. A modular sealed sampling device according to claim 7, characterized in that, It also includes a robotic arm used to grasp sampling tools.

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