Sampling device for food detection

Abstract

The utility model relates to a sampling device for food detection, which comprises a supporting platform, a test tube is sleeved in the supporting platform in a supporting manner, a supporting frame is fixedly mounted at the upper end of the supporting platform, the interior of the supporting frame is connected with a lifting frame through an electric sliding rail, and a lifting assembly is arranged at the upper end of the interior of the lifting frame. A cutter assembly with an adjustable distance is arranged at the lower end of the lifting assembly, a connecting frame is fixedly mounted at the lower end in the lifting frame, an oscillation assembly is arranged in the connecting frame, and the oscillated test solution is conveyed into the test tube. The utility model can solve the problems that the existing sampling operation is mostly manual slitting and oscillation, the widths of the manual slitting are unequal, the oscillation soaking uniformity between the subsequent slitting and the sample extraction working solution is easily influenced, and the liquid leakage possibly occurs when the sample is input into the test tube after the manual oscillation and the like.

Description

Technical Field

[0001] This utility model relates to the field of sampling technology, and in particular to a sampling device for food testing. Background Technology

[0002] Food sampling and testing are essential for ensuring the safety, hygiene, and quality of food, thereby protecting consumer health and rights. Component analysis reveals the content of various food ingredients, ensuring both consumer health and food quality. Traditional sampling equipment requires cutting food into strips and immersing them in a sample extraction working solution for shaking. However, current sampling methods often involve manual cutting and shaking, resulting in inconsistent strip widths that can affect the uniformity of penetration into the sample extraction working solution. Furthermore, manual shaking can lead to leakage when the sample is transferred to test tubes. Therefore, this application designs a sampling device for food testing. Utility Model Content

[0003] (I) Technical Solution

[0004] To achieve the above objectives, the present invention provides the following technical solution: a sampling device for food testing, characterized in that it includes a support platform, a test tube is supported inside the support platform, a support frame is fixedly installed at the upper end of the support platform, the inside of the support frame is connected to a lifting frame via an electric slide rail, a lifting component is provided at the upper end of the inside of the lifting frame, an adjustable-gap cutter component is provided at the lower end of the lifting component, a connecting frame is fixedly installed at the lower end of the inside of the lifting frame, a vibration component is provided inside the connecting frame, and the vibrated test liquid is transported into the test tube.

[0005] The support platform includes a sleeve, with an entry groove at the front end of the sleeve, a locking member inserted into the front end of the entry groove, and the lower end of the sleeve being supported by support feet.

[0006] The lifting assembly includes an electric push rod, which is connected to the upper end of the lifting frame via a base. A connecting plate is installed at the top end of the electric push rod, and push rods are symmetrically installed on the lower end of the connecting plate. A push head is installed at the lower end of the push rod.

[0007] The cutting assembly includes a return frame connected to the push head via a locking unit, the upper end of the return frame connected to the lifting plate via a telescopic rod, and the distance between the lifting plate and the return frame controlled by a threaded component; an extrusion component, the upper end of which is slidably disposed in a sliding groove opened in the lifting plate, and a guide groove opened on the inclined surface of the extrusion component; a U-shaped component, which is slidably disposed in a straight groove opened in the return frame, and guide rollers are symmetrically installed on the upper end of the U-shaped component, and the guide rollers are slidably disposed in the guide groove; and a cutter, the upper end of which is installed in the middle of the U-shaped component.

[0008] The locking unit includes a sliding rod that slides vertically in a hidden groove at the lower end of the U-shaped frame, with the upper end of the sliding rod elastically connected to the hidden groove; a plug that slides horizontally in a movable groove inside the hidden groove, with the plug elastically connected to the movable groove, and the inner side of the plug temporarily inserted into a snap-fit ​​groove on the side wall of the push head; and a squeezing roller that is installed on the end of the plug, with the squeezing roller cooperating with a squeezing groove on the side wall of the sliding rod, the upper slope of the squeezing groove gradually sloping outward from top to bottom.

[0009] The oscillation assembly includes an oscillation platform with a guide rod connected to its lower end, the lower end of which is slidably disposed in an intermediate plate connected in the middle of the connecting frame; a locking unit that temporarily locks the position between the connecting frame and the oscillation platform; a drive unit installed on the side wall of the connecting frame; and a delivery pipe installed on the rear side of the connecting frame, with the front end of the delivery pipe extending into the interior of the connecting frame.

[0010] The vibration platform includes a base plate with a guide rod connected to its lower end; a vibration plate that slides up and down in a built-in groove in the base plate, with a vibration rod installed at the lower end of the vibration plate; and a connecting pipe that slides up and down in a central groove in the middle of the base plate, with a connecting groove evenly provided along its circumference on the upper side wall of the connecting pipe.

[0011] The snap-fit ​​unit includes a pressing rod that slides up and down in a storage slot at the upper end of the connecting frame; and a snap-fit ​​connector that slides horizontally in the storage slot. The outer end of the snap-fit ​​connector is elastically connected to the storage slot, and the inner side of the snap-fit ​​connector is temporarily snapped into a locking slot on the side wall of the base plate.

[0012] The drive unit includes a micro motor, which is connected to the side wall of the connecting frame via a motor mount; and a cam, which is mounted on the output shaft of the micro motor.

[0013] (ii) Beneficial effects

[0014] The sampling device for food testing described in this utility model adjusts the spacing of the cutting blade assembly to ensure that the blades are evenly spaced. Different blade spacings can be adjusted for different sample objects. Then, it automatically cuts the sample into strips, improving the uniformity of the strip width. Subsequently, it automatically injects the sample extraction working solution and shakes the sample, improving the shaking effect. Finally, the shaken sample liquid is injected into the test tube through the connecting pipe to avoid leakage. This application is an automated operation, which improves efficiency and sampling effect compared to manual operation. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1This is a first structural schematic diagram of this application;

[0017] Figure 2 This is a second structural schematic diagram of this application; an overall sectional view;

[0018] Figure 3 This is an overall sectional view of this application;

[0019] Figure 4 This application Figure 3 First partial schematic diagram;

[0020] Figure 5 This application Figure 3 A second partial schematic diagram;

[0021] Figure 6 This application Figure 4 A magnified view of the area at point X;

[0022] Figure 7 This application Figure 4 A magnified view of the area at point Y;

[0023] Figure 8 This application Figure 5 A magnified view of the Z-axis;

[0024] Figure 9 This application Figure 2 A magnified view of part A. Detailed Implementation

[0025] The embodiments of this utility model will now be described with reference to the accompanying drawings. In this process, to ensure clarity and convenience, we may exaggerate the width of lines or the size of constituent elements in the drawings.

[0026] Furthermore, the terms used below are defined based on the functions of this utility model and may vary depending on the user's or operator's intent or convention. Therefore, these terms are defined based on the entire contents of this specification.

[0027] like Figures 1 to 3 As shown, a sampling device for food testing includes a support platform 1, with test tubes housed inside the support platform 1. A support frame 2 is fixedly installed at the upper end of the support platform 1. The support frame 2 is connected to a lifting frame 3 via an electric slide rail. The electric slide rail is an existing electrically driven slide rail system that can control the direction and speed of movement of objects by precisely adjusting the transmission mechanism. A lifting component 4 is provided at the upper end of the lifting frame 3, and an adjustable-gap cutter component 5 is provided at the lower end of the lifting component 4. A connecting frame 6 is fixedly installed at the lower end of the lifting frame 3, and a vibration component 7 is provided inside the connecting frame 6. The vibrated test liquid is transported into the test tube.

[0028] In actual operation, food samples (such as vegetable samples) are placed flat on the oscillation component 7 from right to left. The lifting component 4 drives the cutting component 5 to descend, thereby cutting the food sample at equal intervals to obtain strips of equal width. Subsequently, the oscillation component 7 is squeezed and descends, causing the strips to sink along with it. Then, the sample extraction working fluid is injected into the connecting frame 6 and oscillation is performed to obtain the clear liquid of the sample to be tested. The lifting frame 3, the cutting component 5, and the oscillation component 7 are driven to descend synchronously by the electric slide rail, so that the lower opening of the oscillation component 7 opens to input the clear liquid of the sample to be tested into the test tube, thereby obtaining the sample liquid. The upper part of the test tube is preserved and transported to the next location for sample testing.

[0029] like Figure 2 As shown, the support platform 1 includes a sleeve 11, with an entry groove at the front end of the sleeve 11, and a locking member 12 inserted into the front end of the entry groove. The lower end of the sleeve 11 is supported by a support foot.

[0030] Insert the test tube into the inlet slot, and hang it on the sleeve 11 through the upper skirt of the test tube. Insert the locking piece 12 into the front end of the inlet slot to wrap and clamp the upper end of the test tube.

[0031] like Figure 3 As shown, the lifting assembly 4 includes an electric push rod 41, which is connected to the upper end of the lifting frame 3 via a base. A connecting plate 42 is installed at the top end of the electric push rod 41, and push rods are symmetrically installed on the lower end of the connecting plate 42. A push head 43 is installed at the lower end of each push rod. The electric push rod 41 is a device that converts electrical energy into mechanical energy, widely used in automated and intelligent mechanical equipment. It has advantages such as compact structure, large thrust, fast response, and high reliability. The electric push rod 41, also known as a linear actuator, is a device that achieves linear motion through motor drive. Its core function is to convert the rotational motion of the motor into the linear reciprocating motion of the push rod, thereby realizing remote or automatic control of the equipment.

[0032] The connecting plate 42 is raised and lowered by the electric push rod 41.

[0033] like Figure 4 , Figure 6 , Figure 7 , Figure 9As shown, the cutter assembly 5 includes a retaining frame 51, a locking unit 52, a lifting plate 53, a threaded component 54, an extrusion component 55, a guide groove 56, a U-shaped component 57, and a cutter 59. The retaining frame 51 is connected to the push head 43 via the locking unit 52. The upper end of the retaining frame 51 is connected to the lifting plate 53 via a telescopic rod. The distance between the lifting plate 53 and the retaining frame 51 is controlled by the threaded component 54. The upper end of the extrusion component 55 is slidably disposed in the sliding groove opened in the lifting plate 53. The inclined surface of the extrusion component 55 is provided with a guide groove 56. The U-shaped component 57 is slidably disposed in the straight groove 58 opened in the retaining frame 51. Guide rollers are symmetrically installed on the upper end of the U-shaped component 57. The guide rollers are slidably disposed in the guide groove 56. The upper end of the cutter 59 is installed in the middle of the U-shaped component 57.

[0034] The cutting blade assembly 5 provided in this application can control the spacing to adjust the width of the chopped strips. Specifically, the threaded part 54 is rotated with a tool to make it spiral down, thereby driving the lifting plate 53 and the extrusion part 55 down. The width of the cutting blade 59 is controlled by the extrusion groove 56 on the side wall of the extrusion part 55 and the extrusion roller, thereby adjusting the spacing width (the spacing adjustment only needs to be adjusted once for the same batch of food samples, and there is no need to adjust it for each sampling). After adjustment, the food is cut into equal widths by the descending cutting blade 59.

[0035] like Figure 7 As shown, the locking unit 52 includes a sliding rod 521, a plug 522, and a pressing roller 523. The sliding rod 521 is slidably disposed in a hidden groove at the lower end of the U-shaped frame 51. The upper end of the sliding rod 521 is elastically connected to the hidden groove. The plug 522 is slidably disposed in a movable groove inside the hidden groove. The plug 522 is elastically connected to the movable groove. The inner side of the plug 522 is temporarily inserted into a snap-fit ​​groove on the side wall of the push head 43. The inner side of the pressing roller 523 is installed at the end of the plug 522. The pressing roller 523 works in conjunction with the pressing groove on the side wall of the sliding rod 521. The upper slope of the pressing groove gradually slopes outward from top to bottom.

[0036] During actual operation, when the lower end face of the U-shaped frame 51 is not in contact with the upper end face of the connecting frame 6, the inner side of the plug 522 is temporarily inserted into the snap-fit ​​groove opened on the side wall of the push head 43, thereby locking the positions of the U-shaped frame 51 and the push head 43. This ensures that the U-shaped frame 51 and the push head 43 are in a state of synchronous descent during the early and middle stages of the lifting assembly 4, ensuring that the cutter 59 can cut the food normally. After the lower end face of the U-shaped frame 51 is in contact with the upper end face of the connecting frame 6, the sliding rod 521 is completely retracted. At this time, the plug 522 is completely retracted into the movable groove under the elastic action. At this time, the inner side of the plug 522 is completely disengaged from the snap-fit ​​groove opened on the side wall of the push head 43, and the positions of the U-shaped frame 51 and the push head 43 are unlocked. At this time, the push head 43 continues to descend (the U-shaped frame 51 stops descending), and the descending push head 43 pushes the vibration platform 71 to descend.

[0037] like Figure 5 , Figure 8 As shown, the oscillation assembly 7 includes an oscillation platform 71, a guide rod 72, an intermediate plate 73, a snap-fit ​​unit 74, a drive unit 75, and a delivery pipe 76. The lower end of the oscillation platform 71 is connected to the guide rod 72, and the lower end of the guide rod 72 is slidably disposed in the intermediate plate 73 connected in the middle of the connecting frame 6. The snap-fit ​​unit 74 temporarily locks the position between the connecting frame 6 and the oscillation platform 71. The drive unit 75 is installed on the side wall of the connecting frame 6, and the delivery pipe 76 is installed on the rear side of the connecting frame 6. The front end of the delivery pipe 76 extends into the interior of the connecting frame 6. The delivery pipe 76 can be connected to an external micro pump body, through which the sample extraction working solution is quantitatively input. The existing micro pump body is a miniaturized pump device, widely used in scenarios such as liquid or gas transportation and pressurization.

[0038] In actual operation, the food on the vibrating platform 71 is cut to the same width by the descending cutter 59. After the lower end of the U-shaped frame 51 is attached to the upper end of the connecting frame 6, the locking unit 52 and the snap-fit ​​unit 74 are unlocked. After unlocking, the descending push head 43 squeezes the vibrating platform 71 down until it reaches the lowest position (at this time, the lower end of the conveying pipe 76 is still higher than the upper end of the test tube). The drive unit 75 drives the vibrating platform 71 to vibrate at the bottom, thereby performing the vibration operation.

[0039] like Figure 5 As shown, the vibration platform 71 includes a base plate 711, a vibration plate 712, a vibration rod 713, a connecting pipe 714, and a connecting groove 715. A guide rod 72 is connected to the lower end of the base plate 711. The vibration plate 712 is slidably disposed in the built-in groove opened in the base plate 711. The vibration rod 713 is installed at the lower end of the vibration plate 712. The connecting pipe 714 is slidably disposed in the middle groove opened in the middle of the base plate 711. The connecting pipe 714 has a connecting groove 715 evenly opened along its circumference on the upper side wall.

[0040] like Figure 8 As shown, the snap-fit ​​unit 74 includes a pressing rod 741 and a snap-fit ​​connector 742. The pressing rod 741 is slidably disposed in the storage groove opened at the upper end of the connecting frame 6. The snap-fit ​​connector 742 is slidably disposed in the storage groove. The outer end of the snap-fit ​​connector 742 is elastically connected to the storage groove. The inner side of the snap-fit ​​connector 742 is temporarily snapped into the locking groove opened in the side wall of the base plate 711.

[0041] like Figure 5 As shown, the drive unit 75 includes a micro motor 751 and a cam 752. The micro motor 751 is connected to the side wall of the connecting frame 6 via a motor mount. The cam 752 is mounted on the output shaft of the micro motor 751. A micro motor is a small, low-capacity motor with an output power typically below several hundred watts, widely used in various small devices. A micro motor, also known as a "micro electric motor," usually refers to a motor with a diameter less than 160mm or a rated power less than 750mW. Its main characteristics include: small size: easy to integrate into various small devices; power range: output power is generally below several hundred watts, and the voltage range is 1-24V; multifunctionality: can realize functions such as detection, analysis, amplification, execution, or conversion of electromechanical signals.

[0042] In actual operation, after unlocking, the lowering push head 43 presses the bottom plate 711 down until it reaches the lowest position. Then, the micro motor 751 drives the cam 752 to rotate. According to the cam principle, through the cooperation between the cam 752 and the vibration rod 713, the vibration plate 712 is driven to vibrate, thereby performing oscillation operation.

[0043] Working principle:

[0044] Step 1: Place the food sample flat on the vibration platform 71. The lifting component 4 drives the cutter 59, after the spacing has been adjusted, to descend and cut the food sample at equal intervals, thereby obtaining strips of equal width.

[0045] Step 2: Under the locking of the locking unit 52, the lifting component 4 continues to drive the return frame 51 to descend. After the lower end face of the return frame 51 is in contact with the upper end face of the connecting frame 6, the locking unit 52 is unlocked. At this time, the sliding rod 521 is completely retracted, and the plug 522 is completely retracted into the movable groove under the elastic action. At this time, the descending push head 43 after unlocking presses the bottom plate 711 down until it descends to the lowest position. Then, the sample extraction working fluid is injected into the connecting frame 6.

[0046] Step 3: The driving unit 75 drives the vibrating plate 712 to vibrate, thereby performing an oscillation operation and obtaining the clear liquid of the sample to be tested.

[0047] Step 4: The lifting frame 3, the cutter assembly 5, and the vibration assembly 7 are driven to descend synchronously by the electric slide rail. During the descent, the lower end face of the connecting tube 714 is in contact with the upper end face of the test tube and then the descent stops. However, the lifting frame 3 is still in the descent state, so that the connecting tube 714 is in an upward trend relative to the base plate 711. At this time, the connecting groove 715 opened in the connecting tube 714 is exposed above the base plate 711. The sample liquid to be tested is transported from the connecting tube 714 to the test tube through the connecting groove 715, and thus the sample liquid is obtained.

[0048] Step 5: Seal the top of the test tube and transport it to the next location for sample testing.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sampling device for food testing, characterized in that, The system includes a support platform (1), with test tubes housed inside the support platform (1). A support frame (2) is fixedly installed at the upper end of the support platform (1). The support frame (2) is connected to a lifting frame (3) via an electric slide rail. A lifting component (4) is installed at the upper end of the lifting frame (3). An adjustable-gap cutter component (5) is installed at the lower end of the lifting component (4). A connecting frame (6) is fixedly installed at the lower end of the lifting frame (3). A shaking component (7) is installed inside the connecting frame (6). The shaken test solution is transported into the test tube.

2. The sampling device for food testing according to claim 1, characterized in that: The support platform (1) includes a sleeve (11), with an entry groove at the front end of the sleeve (11), and a locking member (12) inserted into the front end of the entry groove. The lower end of the sleeve (11) is supported by a support foot.

3. A sampling device for food testing according to claim 1, characterized in that: The lifting assembly (4) includes an electric push rod (41), which is connected to the upper end of the lifting frame (3) via a base. A connecting plate (42) is installed at the top end of the electric push rod (41), and push rods are symmetrically installed on the lower end of the connecting plate (42). A push head (43) is installed at the lower end of the push rod.

4. A sampling device for food testing according to claim 3, characterized in that: The cutting blade assembly (5) includes: The return frame (51) is connected to the push head (43) through a locking unit (52). The upper end of the return frame (51) is connected to the lifting plate (53) through a telescopic rod. The distance between the lifting plate (53) and the return frame (51) is controlled by a threaded part (54). The extrusion part (55) is slidably disposed in the sliding groove opened in the lifting plate (53) at its upper end, and the inclined surface of the extrusion part (55) is provided with a guide groove (56). The U-shaped part (57) is slidably disposed in the straight groove (58) opened in the return frame (51). Guide rollers are symmetrically installed on the upper end of the U-shaped part (57), and the guide rollers are slidably disposed in the guide groove (56). The cutter (59) is mounted at the middle of the U-shaped part (57).

5. A sampling device for food testing according to claim 4, characterized in that: The locking unit (52) includes: The sliding rod (521) is slidably set in the hidden groove opened at the lower end of the U-shaped frame (51), and the upper end of the sliding rod (521) is elastically connected to the hidden groove. The plug (522) is horizontally slidably set in the movable groove opened inside the hidden groove. The plug (522) and the movable groove are elastically connected. The inner side of the plug (522) is temporarily inserted into the snap-fit ​​groove opened on the side wall of the push head (43). The extrusion roller (523) is installed on the inner side of the end of the plug (522). The extrusion roller (523) is used in conjunction with the extrusion groove opened on the side wall of the sliding rod (521). The upper slope of the extrusion groove is gradually inclined outward from top to bottom.

6. A sampling device for food testing according to claim 1, characterized in that: The oscillation component (7) includes: The oscillation platform (71) has a guide rod (72) connected to its lower end. The lower end of the guide rod (72) is slidably set in the intermediate plate (73) connected in the middle of the connecting frame (6). The snap-fit ​​unit (74) temporarily locks the position between the connecting frame (6) and the oscillation platform (71); The drive unit (75) is mounted on the side wall of the connecting frame (6); The delivery pipe (76) is installed on the rear side of the connecting frame (6), and the front end of the delivery pipe (76) extends into the interior of the connecting frame (6).

7. A sampling device for food testing according to claim 6, characterized in that: The oscillation platform (71) includes: The base plate (711) has a guide rod (72) connected to its lower end; The vibrating plate (712) is slidably disposed in the built-in groove of the base plate (711), and a vibrating rod (713) is installed at the lower end of the vibrating plate (712). The connecting pipe (714) is slidably disposed in the middle groove opened in the middle of the base plate (711), and the upper side wall of the connecting pipe (714) is evenly provided with a connecting groove (715) along its circumference.

8. A sampling device for food testing according to claim 7, characterized in that: The snap-fit ​​unit (74) includes: The pressure rod (741) is slidably disposed in the storage slot opened at the upper end of the connecting frame (6); The snap-fit ​​connector (742) is horizontally slidably disposed in the storage slot. The outer end of the snap-fit ​​connector (742) is elastically connected to the storage slot. The inner side of the snap-fit ​​connector (742) is temporarily snapped into the locking slot opened in the side wall of the base plate (711).

9. A sampling device for food testing according to claim 6, characterized in that: The drive unit (75) includes: A micro motor (751) is connected to the side wall of the connecting frame (6) via a motor mount; Cam (752) is mounted on the output shaft of micro motor (751).

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