Sample container supply device and food safety detection apparatus

Abstract

This utility model discloses a sample container supply device, comprising a housing and a sample container conveying mechanism. The housing contains a frame and a sampling window on its side wall. The sample container conveying mechanism includes a sampling stage and a driving mechanism. The sampling stage is slidably connected to the frame and has a holding portion adapted to the sample container, as well as a baffle adapted to the sampling window on the side near the sampling window. The sampling stage has a first state where the holding portion is inside the housing and the baffle closes the sampling window, and a second state where the holding portion is outside the housing, sliding along the sampling window. The driving mechanism drives the sampling stage to slide relative to the frame, thereby switching the sampling stage between the first and second states. This utility model's sample container supply device has the advantages of compact structure, low manufacturing cost, resistance to external interference, and accurate sampling.

Description

Technical Field

[0001] This utility model relates to the field of food safety testing technology, specifically to a sample container supply device and food safety testing equipment. Background Technology

[0002] Food safety testing mainly includes the steps of sampling, sample processing, analysis and testing, and result analysis. Sampling involves randomly selecting representative samples from the food to be tested; sample processing involves appropriately treating the samples, such as grinding and extraction, to prepare them for subsequent testing; analysis and testing involves using various testing methods and techniques to accurately determine harmful substances, nutrients, and other components in the samples; and result analysis involves assessing the quality and safety of the food based on the test results and generating a test report.

[0003] Sample containers are used to hold test samples, and their cleanliness directly affects the accuracy of the test results. Sample containers are supplied primarily through manual or automated methods.

[0004] Manual sample container supply requires manual delivery of the containers to the testing area, which is time-consuming and labor-intensive, and susceptible to various human factors such as operator skill level, fatigue, and concentration. Even experienced operators cannot avoid occasional errors under high-intensity, long-term work conditions. These errors, even minor ones, can significantly impact the accuracy of the final test results.

[0005] Existing automated supply methods have some technical drawbacks:

[0006] (1) If the sample container supply device adopts an open structure design, its inherent openness will cause the sample container to be directly exposed to the external environment for a long time, increasing the risk of it being affected by external environmental factors. For example, dust particles in the air, pollutants in the environment, and various unforeseen impurities may easily enter the sample container. This contamination will not only affect the cleanliness of the sample container, but may also lead to a significant decrease in the accuracy of subsequent test results, or even misjudgment or test failure, seriously affecting the reliability and effectiveness of the test work.

[0007] (2) Complex structure. This complexity is not only reflected in the fact that its construction requires more parts for assembly, but also in the need for more refined and complex processes in the manufacturing process to ensure the precise matching of each component and the realization of the overall function. The complexity of the structure also often means that it is more prone to failure during use, the failure rate increases, and it affects the smoothness and efficiency of the overall testing process. Summary of the Invention

[0008] The technical problem to be solved by this utility model is: a sample container supply device with compact structure, low manufacturing cost, not easily affected by external environmental factors, and accurate sampling.

[0009] To solve the above-mentioned technical problems, the present invention provides a sample container supply device, which includes at least:

[0010] The housing contains a frame and a sampling window on the side wall;

[0011] The sample container conveying mechanism includes:

[0012] The sampling stage is slidably connected to the frame. The sampling stage is provided with a holding part adapted to the sample container and a baffle adapted to the sampling window is provided on the side near the sampling window. The sampling stage has a first state in which the holding part is located inside the box and the baffle closes the sampling window, and a second state in which the holding part is located outside the box after sliding through the sampling window in the sliding direction.

[0013] A driving mechanism is provided to drive the sampling stage to slide relative to the frame, thereby switching the sampling stage between the first state and the second state.

[0014] In a preferred embodiment, a mounting plate extending to the bottom of the holding section is fixedly connected to the bottom of the sampling stage, and a guide rail-slider structure is adapted to connect the mounting plate and the frame. The driving mechanism is used to drive the slider to move along the guide rail.

[0015] In a preferred embodiment, the sampling stage is recessed inward on the side away from the baffle to form a clearance groove, and a rotating shaft parallel to the mounting plate is provided between the two inner walls of the clearance groove; the sample container conveying mechanism further includes a flap that is rotatably connected to the rotating shaft.

[0016] In a preferred embodiment, the flap includes a rotating part rotatably connected to the rotating shaft, and a sealing part formed by the sidewalls of the rotating part extending outward from the relief groove and a connecting part extending inward from the relief groove.

[0017] The sample container delivery mechanism also includes:

[0018] An elastic element, one end of which is connected to the connecting part, and the other end of which is connected to the mounting plate;

[0019] The positioning component includes a mounting base fixedly connected to the frame, and a positioning block mounted on the mounting base for interacting with the connecting portion to position the flap in the rotational direction.

[0020] In a preferred embodiment, the flap has a sealed state in which the sealing part is parallel to the baffle and closes the sampling window, and an open state in which the sealing part rotates relative to the baffle by a preset angle and opens the sampling window under the action of the positioning block and the connecting part;

[0021] When the sampling stage is in the first state, the flap is in the open state;

[0022] When the sampling stage is in the second state, the flap is in a sealed state;

[0023] The driving mechanism drives the sampling stage to slide relative to the frame, causing the sampling stage to switch from the first state to the second state, and drives the flap to move synchronously, switching from the open state to the sealed state under the action of the elastic element;

[0024] The driving mechanism drives the sampling stage to slide relative to the frame, causing the sampling stage to switch from the second state to the first state, which in turn drives the flip plate to move synchronously, and under the action of the positioning block, switches from the sealed state to the open state.

[0025] In a preferred embodiment, the preset angle is 80°-100°.

[0026] In a preferred embodiment, a weighing device is provided at the bottom of the holding section, and a display electrically connected to the weighing device is provided on the side wall of the box.

[0027] This utility model also provides a food safety testing device, which is equipped with a sample container supply device as described above.

[0028] Compared with the prior art, the sample container supply device of this utility model has the following advantages:

[0029] (1) A sample container supply device of the present invention includes a housing and a sample container conveying mechanism. A frame is installed inside the housing, and a sampling window is provided on the side wall. The sample container conveying mechanism includes a sampling platform and a driving mechanism. The sampling platform is slidably connected to the frame and is provided with a holding part adapted to the sample container. A baffle adapted to the sample window is provided on the side near the sampling window. The sampling platform has a first state where the holding part is inside the housing and the baffle closes the sampling window, and a second state where the holding part is outside the housing after sliding through the sampling window in the sliding direction. The driving mechanism is used to drive the sampling platform to slide relative to the frame, thereby switching the sampling platform between the first and second states. This structural design, on the one hand, realizes sample container supply, reduces labor costs, and improves detection efficiency; on the other hand, it reduces the influence of human factors, ensures the cleanliness of the sample container, and improves the accuracy of detection.

[0030] (2) In a sample container supply device of the present invention, the sampling platform on the side away from the baffle is recessed inward to form a relief groove, and a rotating shaft parallel to the mounting plate is provided between the inner walls of the two sides of the relief groove; the sample container conveying mechanism also includes a flap, an elastic element and a positioning assembly rotatably connected to the rotating shaft. The flap includes a connecting part rotatably connected to the rotating shaft, and a sealing part and a connecting part extending outward from the side wall of the connecting part and inward from the relief groove, respectively; one end of the elastic element is connected to the connecting part and the other end is connected to the mounting plate; the positioning assembly includes a mounting base fixedly connected to the frame, and a positioning block installed on the mounting base for interacting with the connecting part to position the flap in the rotation direction. This structural design achieves several advantages. First, when the sampling stage extends out of the enclosure through the sampling window, the flap rotates relative to the baffle to close the sampling window, ensuring the cleanliness of the detection area inside the enclosure and preventing interference from external environmental factors, thus further improving the accuracy of the detection. Second, only one drive element is needed to achieve the coordinated movement of the flap and the sampling stage. The sampling window is closed as the sampling stage extends, simplifying the device's structure, reducing manufacturing costs, and facilitating later maintenance and repair. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of a sample container supply device according to Embodiment 1 of the present invention, with part of the side plate removed from the box body.

[0032] Figure 2 This is a schematic diagram of the box body of a sample container supply device according to Embodiment 1 of the present invention, with part of the side plate removed from the box body;

[0033] Figure 3 This is a schematic diagram of the sample container conveying mechanism of a sample container supply device according to Embodiment 1 of the present invention.

[0034] Figure 4 This is a schematic diagram of the sampling stage in a first embodiment of a sample container supply device of the present invention.

[0035] Figure 5 This is a schematic diagram of the flap assembly structure of a sample container supply device according to Embodiment 1 of the present invention.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1-Box body; 11-Frame; 12-Sampling window; 13-Display; 2-Sample container conveying mechanism; 21-Sampling stage; 211-Container section; 212-Baffle; 213-Mounting plate; 214-Giveaway groove; 2141-Rotating shaft; 215-Weighing device; 22-Drive mechanism; 221-Guide rail; 222-Slider; 223-Positioning sensor; 23-Flip plate; 231-Rotating part; 232-Sealing part; 233-Connecting part; 24-Elastic element; 25-Positioning assembly; 251-Mounting base; 252-Positioning block; 3-Sample container. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0039] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "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 utility model 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 utility model.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an integral connection, or a detachable connection; they can refer to the internal connection of two components; they can refer to a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0041] This utility model provides a sample container supply device, such as... Figures 1-2 As shown, it includes at least a housing 1 and a sample container conveying mechanism 2. A frame 11 is installed inside the housing, and a sampling window 12 is provided on the side wall.

[0042] like Figure 3As shown, the sample container conveying mechanism 2 includes a sampling stage 21 and a driving mechanism 22. The sampling stage is slidably connected to the frame 11. The sampling stage is provided with a holding part 211 adapted to the sample container 3, and a baffle 212 adapted to the sampling window 12 is provided on the side near the sampling window. The sampling stage 21 has a first state in which the holding part is located inside the housing 1 and the baffle 212 closes the sampling window, and a second state in which it slides through the sampling window in the sliding direction, opening the sampling window and placing the holding part outside the housing. The driving mechanism 22 is used to drive the sampling stage to slide relative to the frame 11, thereby switching the sampling stage between the first state and the second state. This structural design realizes sample container supply, reduces labor costs, and improves detection efficiency. On the other hand, it reduces the influence of human factors, ensures the cleanliness of the sample container, and improves the accuracy of detection.

[0043] Preferably, the bottom of the sampling stage is fixedly connected to a mounting plate 213 that extends to the bottom of the holding section. The mounting plate and the frame are adapted to be connected by a guide rail 221-slider 222 structure. The drive mechanism 22 is used to drive the slider to move along the guide rail.

[0044] Preferably, a positioning sensor 223 is provided on the guide rail 221 to detect the position of the sampling stage.

[0045] like Figure 4 As shown, the sampling stage is recessed inward on the side away from the baffle to form a relief groove 214, and a rotating shaft 2141 parallel to the mounting plate is provided between the inner walls of the two sides of the relief groove.

[0046] The sample container conveying mechanism also includes a flap 23 that is rotatably connected to the rotating shaft 2141.

[0047] Preferred, such as Figure 5 As shown, the flap 23 includes a rotating part 231 rotatably connected to the rotating shaft 2141, and a sealing part 232 and a connecting part 233 extending outward from the side wall of the rotating part into the clearance groove 214. The sample container conveying mechanism also includes:

[0048] The elastic element 24 has one end connected to the connecting part 233 and the other end connected to the mounting plate 213;

[0049] The positioning assembly 25 includes a mounting base 251 fixedly connected to the frame 11, and a positioning block 252 mounted on the mounting base for interacting with the connecting part to position the flap 23 in the rotation direction.

[0050] Preferably, the end face of the positioning block is provided with an inclined surface that matches the connecting part.

[0051] The flap 23 has a sealed state in which the sealing part 232 is parallel to the baffle and closes the sampling window, and an open state in which the sealing part rotates relative to the baffle by a preset angle and opens the sampling window under the action of the positioning block 252 and the connecting part 233.

[0052] When the sampling stage 21 is in the first state, the flap 23 is in the open state;

[0053] When the sampling stage 21 is in the second state, the flap 23 is in a sealed state;

[0054] The drive mechanism 22 drives the sampling stage to slide relative to the frame, causing the sampling stage to switch from the first state to the second state, driving the flap to move synchronously. Under the pulling force of the elastic element, the flap rotates relative to the rotating shaft, switching from the open state to the sealed state, until the sealing part of the flap is parallel to the baffle and abuts against the sampling window, thus sealing the sampling window.

[0055] Preferably, the sealing part of the flap is adapted to the sampling window.

[0056] The drive mechanism drives the sampling stage to slide relative to the frame, switching the sampling stage from the second state to the first state. This causes the flap to move synchronously, with the connecting part of the flap abutting against the end face of the positioning block. Under the action of the positioning block, the flap switches from a sealed state to an open state. This structural design has several advantages. First, when the sampling stage extends out of the housing through the sampling window, the flap rotates relative to the baffle, closing the sampling window and ensuring the cleanliness of the detection area inside the housing. This prevents interference from external environmental factors and further improves the accuracy of the detection. Second, only one drive element is needed to achieve the coordinated movement of the flap and the sampling stage. The sampling window is closed simultaneously with the extension of the sampling stage, simplifying the device's structure, reducing manufacturing costs, and facilitating later maintenance and repair.

[0057] Preferably, the preset angle is 80°-100°.

[0058] Preferably, a weighing device 215 is provided at the bottom of the holding section 211, and a display 13 electrically connected to the weighing device is provided on the side wall of the box for real-time detection and display of sample quality, accurately ensuring the amount of sample added, avoiding the problem of insufficient or excessive sample addition due to human operation error, thereby ensuring the accuracy and reliability of the test results.

[0059] The operating principle of the sample container supply device in this embodiment is as follows:

[0060] Initial state: The sampling stage 21 is in the first state, the holding part is inside the box 1 and the baffle 212 closes the sampling window; the flip plate 23 is in the open state, and the positioning block 252 pushes against the connecting part 233 of the flip plate through the inclined surface to overcome the tension of the elastic element 24 and keep the flip plate tilted.

[0061] Sample container supply: The drive mechanism 22 drives the slider 222 to move along the guide rail 221, and through the mounting plate 213, it drives the sampling stage 21 to switch from the first state to the second state. The baffle 212 moves with the sampling stage 21, gradually opening the sampling window 12. At the same time, the flip plate 23 rotates around the rotating shaft 2141 under the action of the elastic element 24, switching from the open state to the sealed state. The sealing part 232 gradually aligns with the window, closing the sampling window 12. When the sampling stage is fully extended and in the second state, the holding part 211 is located outside the box, allowing the user to place the sample container 3. The flip plate is in the sealed state, and the sealing part 232 abuts against and is parallel to the sampling window 12, closing the window and preventing external contamination from entering the box. The weighing device 215 detects the sample mass in real time, and the data is fed back through the display 13 to ensure accurate addition.

[0062] Sampling complete: The drive mechanism 22 drives the slider 222 to move along the guide rail 221 in the reverse direction, and through the mounting plate 213, it drives the sampling stage 21 to switch from the second state to the first state. When the sampling stage moves close to the box, the connecting part 233 of the flap contacts the inclined surface of the positioning block 252. The positioning block forces the flap to rotate in the opposite direction around the axis, overcoming the tension of the elastic element, and gradually turning to the open state. After the sampling stage is fully reset in the first state, the baffle 212 re-closes the sampling window 12.

[0063] Example 2

[0064] This embodiment also provides a food safety testing device, which is equipped with any of the sample container supply devices described above.

[0065] In summary, the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sample container supply device, characterized in that, At least including: The box (1) has a frame (11) inside and a sampling window (12) on the side wall. Sample container conveying mechanism (2), the sample container conveying mechanism includes: The sampling stage (21) is slidably connected to the frame (11). The sampling stage is provided with a holding part (211) adapted to the sample container, and a baffle (212) adapted to the sampling window is provided on the side near the sampling window. The sampling stage has a first state in which the holding part is located inside the box and the baffle closes the sampling window, and a second state in which the holding part is located outside the box after passing through the sampling window along the sliding direction. A drive mechanism (22) is used to drive the sampling stage to slide relative to the frame, thereby switching the sampling stage between the first state and the second state.

2. A sample container supply device according to claim 1, characterized in that: The bottom of the sampling stage is fixedly connected to a mounting plate (213) that extends to the bottom of the holding part. A guide rail (221)-slider (222) structure is adapted to connect the mounting plate and the frame. The driving mechanism is used to drive the slider to move along the guide rail.

3. A sample container supply device according to claim 2, characterized in that: The sampling stage is recessed inward on the side away from the baffle to form a relief groove (214), and a rotating shaft (2141) parallel to the mounting plate is provided between the inner walls of the two sides of the relief groove; the sample container conveying mechanism (2) also includes a flap (23) rotatably connected to the rotating shaft.

4. A sample container supply device according to claim 3, characterized in that: The flap (23) includes a rotating part (231) rotatably connected to the rotating shaft, and a sealing part (232) formed by the side wall of the rotating part extending outward from the relief groove and a connecting part (233) extending inward from the relief groove. The sample container delivery mechanism also includes: Elastic element (24), one end of which is connected to the connecting part and the other end of which is connected to the mounting plate; The positioning component (25) includes a mounting base (251) fixedly connected to the frame (11) and a positioning block (252) mounted on the mounting base for interacting with the connecting part to position the flap in the rotation direction.

5. A sample container supply device according to claim 4, characterized in that: The flap has a sealed state in which the sealing part is parallel to the baffle and closes the sampling window, and an open state in which the sealing part rotates relative to the baffle by a preset angle and opens the sampling window under the action of the positioning block and the connecting part. When the sampling station is in the first state, the flap is in the open state; When the sampling stage is in the second state, the flap is in a sealed state; The driving mechanism drives the sampling stage to slide relative to the frame, causing the sampling stage to switch from the first state to the second state, and drives the flap to move synchronously, switching from the open state to the sealed state under the action of the elastic element; The driving mechanism drives the sampling stage to slide relative to the frame, causing the sampling stage to switch from the second state to the first state, which in turn drives the flip plate to move synchronously, and under the action of the positioning block, switches from the sealed state to the open state.

6. A sample container supply device according to claim 5, characterized in that: The preset angle is 80°-100°.

7. A sample container supply device according to any one of claims 1-6, characterized in that: A weighing device (215) is provided at the bottom of the holding section, and a display (13) electrically connected to the weighing device is provided on the side of the box.

8. A food safety testing device, characterized in that: It is equipped with a sample container supply device as described in any one of claims 1-7.

Images