Food sample pretreatment extraction device
By designing sealing, placement, and heating mechanisms, the problems of uneven heating and easy breakage of test tubes in existing devices have been solved, achieving uniform heating and protection of test tubes, and improving the reliability and safety of sample extraction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG DINGKE TESTING TECHNOLOGY CO LTD
- Filing Date
- 2025-04-15
- Publication Date
- 2026-05-15
AI Technical Summary
Existing food sample pretreatment extraction devices concentrate heat during the heating process, resulting in uneven heating of the test tubes. Furthermore, the lack of protection during shaking can easily lead to test tube breakage.
A food sample pretreatment extraction device was designed, comprising a sealing mechanism, a placement mechanism, a shaking mechanism, and a heating mechanism. The sealing mechanism limits the test tube, the placement mechanism supports the test tube, the shaking mechanism drives the test tube to shake, and the heating mechanism heats the test tube evenly. A rubber partition enhances the limiting protection and prevents the test tube from breaking.
It achieves uniform heating and effective protection of the test tube, avoids breakage during shaking, and improves the reliability and safety of sample extraction.
Smart Images

Figure CN224247419U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of food extraction, and in particular to a food sample pretreatment and extraction device. Background Technology
[0002] Currently, the chemical composition of food is very complex. It contains not only large organic compounds such as proteins, sugars, fats, vitamins, and organic pesticides introduced due to pollution, but also various inorganic elements such as potassium, sodium, calcium, and iron. These components often exist in complex complex states through various forces.
[0003] Existing food sample pretreatment and extraction devices, such as the one disclosed in utility model patent application number 202322606152.3, mainly include a box body. Inside the box body is a placement plate. Guide posts are fixed to both sides of the placement plate. Multiple guide posts are arranged in a rectangular pattern. Each guide post has a first spring at its other end. A guide cylinder is correspondingly located on the inner wall of the box body, and the guide posts are all located inside the guide cylinder. In use, the motor is turned on to rotate the cam. The cam then drives the force plate, sliding block, and placement plate to move left and right, shaking multiple test tubes inside the placement holes, thereby facilitating the extraction of components from multiple food samples.
[0004] However, most existing extraction devices extract food samples directly by heating them over a flame. This results in concentrated heat, making it difficult to heat multiple samples evenly. Furthermore, the lack of protection for the test tubes during shaking makes them prone to breakage. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a food sample pretreatment extraction device that not only enhances the heat dispersion effect, enabling multiple test tubes to be heated evenly, but also limits and protects the test tubes during shaking, preventing excessive shaking from causing the test tubes to break.
[0006] This utility model discloses a food sample pretreatment extraction device, including a sampling box; it also includes a sealing mechanism, a placement mechanism, a shaking mechanism, and a heating mechanism. The sealing mechanism is installed on the sampling box and presses and limits the test tube; the placement mechanism is installed on the sealing mechanism and supports the test tube; the shaking mechanism is installed on the sampling box and drives the placement mechanism to shake; and the heating mechanism is installed on the shaking mechanism and heats the sample. The operator opens the sealing mechanism, places the sample test tube on the placement mechanism, then closes the sealing mechanism, starts the shaking mechanism to drive the placement mechanism to shake, and simultaneously the heating mechanism heats the sample in the test tube, thus pretreating the sample before testing.
[0007] Preferably, the sampling box includes a box body, a control panel, and two sets of positioning frames. The bottom of the box body is connected to the working surface, and the inside of the box body is provided with a cavity. The control panel is installed on the box body, and the two sets of positioning frames are installed in the cavity of the box body. By setting two sets of positioning frames, it is convenient to limit the shaking of the placement mechanism. The operator controls the shaking rate and heating temperature through the control panel.
[0008] Preferably, the sealing mechanism includes a hinge, a sealing cap, a handle, a pressure relief valve, multiple sets of first springs, and a pressing plate. The hinge is mounted on the housing, the sealing cap is mounted on the hinge, the handle is mounted on the outer side of the sealing cap, the pressure relief valve is mounted on the handle, the multiple sets of first springs are mounted on the inner side of the pressure relief valve, and the pressing plate is mounted on the multiple sets of first springs. When the operator pulls the handle to open the sealing cap, it is convenient to place the sample tube on the placement mechanism. Then, the sealing cap is closed, and the multiple sets of first springs push the pressing plate to press down on the top of the sample tube to prevent the tube from jumping up and down during shaking. After extraction, the pressure relief valve is opened to release the hot air in the cavity, preventing the operator from being directly exposed to hot air when opening the sealing cap.
[0009] Preferably, the placement mechanism includes a placement plate, multiple sets of telescopic rods, multiple sets of second springs, a connecting plate, four sets of hangers, and a partition. The placement plate is slidably installed between two sets of positioning frames. The multiple sets of telescopic rods are all installed in the cavity of the box and connected to the placement plate. The multiple sets of second springs are respectively fitted onto the multiple sets of telescopic rods. The connecting plate is installed on the placement plate and has positioning grooves. The tops of the four sets of hangers are connected to the bottoms of the placement plate, and the tops of the partition are connected to the bottoms of the four sets of hangers. The placement plate and the partition both have multiple sets of placement holes. The sample tubes are inserted into the placement holes of the placement plate and the partition to fix the tubes. The shaking mechanism drives the placement plate to shake left and right through the connecting plate. The multiple sets of telescopic rods and multiple sets of second springs prevent excessive shaking and collision between the placement plate and the inner wall of the box.
[0010] Preferably, the partition is made of rubber; the rubber material can increase the friction between the test tube and the partition, limit and fix the bottom of the test tube to prevent it from breaking, and at the same time, the rubber can deform to a certain extent, which facilitates the shaking of the test tube.
[0011] Preferably, the wobbling mechanism includes a dual-head motor, a first drive shaft, a cam, a second drive shaft, and a first pulley. The dual-head motor is mounted on the housing, and its output end is connected to the input ends of the first and second drive shafts, respectively. The output end of the first drive shaft is connected to the input end of the cam, and the output end of the second drive shaft is connected to the input end of the first pulley. When the dual-head motor is started, it drives the first drive shaft to rotate, which in turn drives the cam to rotate. The cam rotates within the positioning groove of the connecting plate, facilitating the reciprocating movement of the connecting plate. Simultaneously, the dual-head motor drives the second drive shaft to rotate, which in turn drives the first pulley to rotate.
[0012] Preferably, the heating mechanism includes multiple sets of resistance wires, a uniform plate, a rotating shaft, fan blades, a second pulley, and a belt. The multiple sets of resistance wires are all installed at the bottom of the cavity inside the housing. The uniform plate is also installed at the bottom of the cavity inside the housing. The rotating shaft is rotatably installed at the bottom of the cavity inside the housing. The fan blades are installed on the rotating shaft. The second pulley is installed on the rotating shaft. The belt is tensioned between the first pulley and the second pulley. When the multiple sets of resistance wires are energized, they generate heat. The heat is diffused through the uniform plate. The first pulley drives the second pulley to rotate via the belt. The second pulley drives the rotating shaft and fan blades to rotate. The rotation of the fan blades accelerates the airflow, allowing the heat to be diffused evenly.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the staff opens the sealing mechanism, places the sample tube on the placement mechanism, then closes the sealing mechanism, starts the shaking mechanism to drive the placement mechanism to shake, and at the same time the heating mechanism heats the sample in the test tube, thus pre-treating the sample before testing. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;
[0015] Figure 2 This is an isometric structural diagram of the sampling box of this utility model;
[0016] Figure 3 This is a partially enlarged isometric structural diagram of the sealing mechanism of this utility model;
[0017] Figure 4 This is a cross-sectional isometric structural diagram of the mounting mechanism and the swaying mechanism of this utility model;
[0018] Figure 5 This is a partially enlarged cross-sectional isometric structural diagram of the heating mechanism of this utility model.
[0019] The attached diagram is labeled as follows: 01, sampling box; 11, box body; 12, control panel; 13, positioning frame; 02, sealing mechanism; 21, hinge; 22, sealing cover; 23, handle; 24, pressure relief valve; 25, first spring; 26, pressing plate; 03, placement mechanism; 31, placement plate; 32, telescopic rod; 33, second spring; 34, connecting plate; 35, hanger; 36, partition; 04, shaking mechanism; 41, dual-head motor; 42, first drive shaft; 43, cam; 44, second drive shaft; 45, first pulley; 05, heating mechanism; 51, resistance wire; 52, uniform plate; 53, rotating shaft; 54, fan blade; 55, second pulley; 56, belt. Detailed Implementation
[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1
[0021] This utility model discloses a food sample pretreatment and extraction device, including a sampling box 01; it also includes a sealing mechanism 02, a placement mechanism 03, a shaking mechanism 04, and a heating mechanism 05. The sealing mechanism 02 is installed on the sampling box 01 and presses and limits the test tubes; the placement mechanism 03 is installed on the sealing mechanism 02 and supports the test tubes; the shaking mechanism 04 is installed on the sampling box 01 and drives the placement mechanism 03 to shake; the heating mechanism 05 is installed on the shaking mechanism 04 and heats the sample. The sampling box 01 includes a box body 11, a control panel 12, and two sets of positioning frames 13. The bottom end of body 11 is connected to the working surface. A cavity is provided inside body 11. Control panel 12 is mounted on body 11. Two sets of positioning frames 13 are installed inside the cavity of body 11. Sealing mechanism 02 includes hinge 21, sealing cover 22, handle 23, pressure relief valve 24, multiple sets of first springs 25, and pressing plate 26. Hinge 21 is mounted on body 11, sealing cover 22 is mounted on hinge 21, handle 23 is mounted on the outer side of sealing cover 22, pressure relief valve 24 is mounted on handle 23, and multiple sets of first springs 25 are mounted on the inner side of pressure relief valve 24. Pressing plate 26... 6. Installed on multiple sets of first springs 25; the mounting mechanism 03 includes a mounting plate 31, multiple sets of telescopic rods 32, multiple sets of second springs 33, a connecting plate 34, four sets of hangers 35, and a partition plate 36. The mounting plate 31 is slidably installed between two sets of positioning frames 13. The multiple sets of telescopic rods 32 are all installed in the cavity of the housing 11 and connected to the mounting plate 31. The multiple sets of second springs 33 are respectively fitted on the multiple sets of telescopic rods 32. The connecting plate 34 is installed on the mounting plate 31 and has positioning grooves. The tops of the four sets of hangers 35 are connected to the bottom of the mounting plate 31, and the top of the partition plate 36 is connected to the bottom of the mounting plate 31. The bottom of the four sets of hangers 35 are connected, and multiple sets of mounting holes are opened on the mounting plate 31 and the partition plate 36; the partition plate 36 is made of rubber; the shaking mechanism 04 includes a dual-head motor 41, a first drive shaft 42, a cam 43, a second drive shaft 44 and a first pulley 45. The dual-head motor 41 is mounted on the housing 11. The output end of the dual-head motor 41 is connected to the input end of the first drive shaft 42 and the second drive shaft 44 respectively. The output end of the first drive shaft 42 is connected to the input end of the cam 43, and the output end of the second drive shaft 44 is connected to the input end of the first pulley 45.During operation, the operator first pulls handle 23 to open the sealing cover 22, inserts the sample tube into the placement holes of the placement plate 31 and partition 36 to secure it, and then closes the sealing cover 22. Multiple sets of first springs 25 push the pressing plate 26 to press down on the top of the sample tube, preventing it from bouncing up and down during shaking. The operator controls the shaking rate and heating temperature through the control panel 12, and starts the dual-head motor 41. The dual-head motor 41 drives the first transmission shaft 42 to rotate, which in turn drives the cam 43 to rotate. The cam 43 rotates in the positioning groove of the connecting plate 34, facilitating the reciprocating movement of the connecting plate 34. The connecting plate 34 causes the placement plate 31 to shake left and right. Multiple sets of telescopic rods 32 and multiple sets of second springs 33 prevent excessive shaking and collision between the placement plate 31 and the inner wall of the chamber 11. After extraction, the pressure relief valve 24 is opened to release the hot air in the cavity, preventing the operator from being exposed to hot air directly when opening the sealing cover 22. Example 2
[0022] like Figures 1 to 5As shown, this utility model discloses a food sample pretreatment extraction device based on Embodiment 1. The heating mechanism 05 includes multiple sets of resistance wires 51, a uniform plate 52, a rotating shaft 53, a fan blade 54, a second pulley 55, and a belt 56. The multiple sets of resistance wires 51 are all installed at the bottom of the cavity inside the housing 11. The uniform plate 52 is installed at the bottom of the cavity inside the housing 11. The rotating shaft 53 is rotatably installed at the bottom of the cavity inside the housing 11. The fan blade 54 is installed on the rotating shaft 53. The second pulley 55 is installed on the rotating shaft 53. The belt 56 is tensioned and installed between the first pulley 45 and the second pulley 55. During operation, the operator first pulls the handle 23 to open the sealing cover 22, inserts the sample tube into the placement hole of the placement plate 31 and the partition 36 to fix the tube, and then closes the sealing cover 22. Multiple sets of first springs 25 push the pressing plate 26 to press down the top of the sample tube to prevent the tube from jumping up and down during shaking. The operator controls the device through the control panel 12. To control the shaking rate and heating temperature, the dual-head motor 41 is started. The dual-head motor 41 drives the first transmission shaft 42 to rotate, which in turn drives the cam 43 to rotate. The cam 43 rotates in the positioning groove of the connecting plate 34, facilitating the reciprocating movement of the connecting plate 34. The connecting plate 34 causes the placement plate 31 to shake left and right. Multiple sets of telescopic rods 32 and multiple sets of second springs 33 are used to prevent excessive shaking and collision between the placement plate 31 and the inner wall of the box 11. At the same time, the dual-head motor 41 drives the second transmission shaft 44 to rotate, which in turn drives the first pulley 45 to rotate. Multiple sets of resistance wires 51 are energized and heated. The heat is diffused through the uniform plate 52. The first pulley 45 drives the second pulley 55 to rotate through the belt 56. The second pulley 55 drives the rotating shaft 53 and the fan blade 54 to rotate. The rotation of the fan blade 54 accelerates the airflow, making the heat evenly diffused. After extraction, the pressure relief valve 24 is opened to release the hot air in the cavity, preventing the staff from being directly exposed to hot air when opening the sealing cover 22.
[0023] The dual-head motor 41 of this utility model is purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0024] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A food sample pretreatment and extraction device, comprising a sampling box (01); characterized in that, It also includes a sealing mechanism (02), a placement mechanism (03), a shaking mechanism (04), and a heating mechanism (05). The sealing mechanism (02) is installed on the sampling box (01) and presses and limits the test tube. The placement mechanism (03) is installed on the sealing mechanism (02) and supports the test tube. The shaking mechanism (04) is installed on the sampling box (01) and drives the placement mechanism (03) to shake. The heating mechanism (05) is installed on the shaking mechanism (04) and heats the sample.
2. The food sample pretreatment and extraction device as described in claim 1, characterized in that, The sampling box (01) includes a box body (11), a control panel (12) and two sets of positioning frames (13). The bottom end of the box body (11) is connected to the working surface. The box body (11) has a cavity inside. The control panel (12) is installed on the box body (11), and the two sets of positioning frames (13) are installed in the cavity of the box body (11).
3. The food sample pretreatment and extraction device as described in claim 2, characterized in that, The sealing mechanism (02) includes a hinge (21), a sealing cover (22), a handle (23), a pressure relief valve (24), multiple sets of first springs (25) and a pressing plate (26). The hinge (21) is mounted on the housing (11), the sealing cover (22) is mounted on the hinge (21), the handle (23) is mounted on the outer side of the sealing cover (22), the pressure relief valve (24) is mounted on the handle (23), the multiple sets of first springs (25) are all mounted on the inner side of the pressure relief valve (24), and the pressing plate (26) is mounted on the multiple sets of first springs (25).
4. The food sample pretreatment and extraction device as described in claim 2, characterized in that, The mounting mechanism (03) includes a mounting plate (31), multiple sets of telescopic rods (32), multiple sets of second springs (33), a connecting plate (34), four sets of hangers (35) and a partition (36). The mounting plate (31) is slidably installed between two sets of positioning frames (13). The multiple sets of telescopic rods (32) are all installed in the cavity of the box (11) and connected to the mounting plate (31). The multiple sets of second springs (33) are respectively fitted on the multiple sets of telescopic rods (32). The connecting plate (34) is installed on the mounting plate (31). The connecting plate (34) has a positioning groove. The top of the four sets of hangers (35) is connected to the bottom of the mounting plate (31). The top of the partition (36) is connected to the bottom of the four sets of hangers (35). The mounting plate (31) and the partition (36) both have multiple sets of mounting holes.
5. The food sample pretreatment and extraction device as described in claim 4, characterized in that, It also includes a partition (36) made of rubber.
6. The food sample pretreatment and extraction device as described in claim 2, characterized in that, The swaying mechanism (04) includes a dual-head motor (41), a first drive shaft (42), a cam (43), a second drive shaft (44), and a first pulley (45). The dual-head motor (41) is mounted on the housing (11). The output end of the dual-head motor (41) is connected to the input end of the first drive shaft (42) and the second drive shaft (44) respectively. The output end of the first drive shaft (42) is connected to the input end of the cam (43), and the output end of the second drive shaft (44) is connected to the input end of the first pulley (45).
7. The food sample pretreatment and extraction device as described in claim 6, characterized in that, The heating mechanism (05) includes multiple sets of resistance wires (51), a uniform plate (52), a rotating shaft (53), a fan blade (54), a second pulley (55), and a belt (56). The multiple sets of resistance wires (51) are all installed at the bottom of the cavity inside the housing (11). The uniform plate (52) is installed at the bottom of the cavity inside the housing (11). The rotating shaft (53) is rotatably installed at the bottom of the cavity inside the housing (11). The fan blade (54) is installed on the rotating shaft (53). The second pulley (55) is installed on the rotating shaft (53). The belt (56) is tensioned between the first pulley (45) and the second pulley (55).