Detection device for pollutants on surfaces of beef and mutton

Abstract

The invention provides a beef and mutton surface pollutant detection device, and relates to the technical field of detection sampling devices.The beef and mutton surface pollutant detection device comprises a sampling table, four sampling assemblies are arranged on the front face of the sampling table, detection equipment is installed on the back face of the sampling table, each sampling assembly comprises a vertical frame, and a connecting plate is arranged at the top of each vertical frame; a connecting plate is fixed at the front end of the sampling assembly, a rubber seat is fixed on the surface of the front end of the connecting plate, a collecting pipe is inserted into the rubber seat, a smashing cylinder is fixed at the other end of the rubber seat, and two ends of the smashing cylinder are hollow. By means of the blades and the cutters in the square frame, meat blocks at needed positions can be conveniently cut out, the meat blocks are conveyed into the sampling pipe after being smashed, follow-up culture and microorganism detection are facilitated, multiple sets of meat blocks are simultaneously carried out in the process, the sampling position can be freely adjusted, use is more convenient, and meanwhile pollutant detection of beef and mutton is more efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of detection sampling devices, and specifically to a device for detecting contaminants on the surface of beef and mutton. Background Technique

[0002] During the slaughter process of beef carcasses, they will be contaminated by various microorganisms, including coliforms, Staphylococcus aureus, Pseudomonas, etc. These microorganisms will not only cause product spoilage but also lead to foodborne diseases.

[0003] Beef detection refers to understanding the true quality of beef through a series of tests on beef specimens. The detection process involves multiple steps, as follows: Sample collection: Staff collect beef samples during production and sales according to the sampling plan, ensuring the integrity and authenticity of the samples; Sample pretreatment: Pretreat the collected beef samples, including removing dirt or impurities on the surface area and removing non-detectable substances in the samples; Selection of detection method: Select a suitable detection method for detection according to the detection purpose, sample type, detection standard, etc.; Analysis and detection: Detect the pretreated samples, including component analysis, contaminant detection, pathogenic bacteria detection, etc. Different instruments or equipment may be required for different types of detections.

[0004] In the prior art for meat sampling and detection, it is necessary to cut and then crush and culture at different positions. This process requires manual operation, which is time-consuming and laborious. Moreover, when cutting and sampling at different positions, manual operation may easily lead to errors in the sampling positions and low efficiency. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a device for detecting contaminants on the surface of beef and mutton to solve the problems raised in the above background technique. The structure of the present invention is novel. Through multiple groups of sampling components, simultaneous sampling of long-strip beef and mutton can be carried out. The blades and cutters within the square frame are convenient for intercepting the required pieces of meat, and after being shredded, they are sent into the sampling tube, which is convenient for subsequent culturing and detecting microorganisms. Multiple groups are carried out simultaneously during this process, and the sampling position can be freely adjusted, making it more convenient to use. At the same time, the detection of contaminants on beef and mutton is also more efficient.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: A device for detecting surface contaminants of beef and mutton, including a sampling table. Four groups of sampling components are provided on the front of the sampling table, and detection equipment is installed on the back of the sampling table. The sampling component includes a vertical frame. A connecting plate is provided at the top of the vertical frame, and a rubber seat is fixed on the front end surface of the connecting plate. A collection tube is inserted into the rubber seat, and a crushing cylinder is fixed at the other end of the rubber seat. Both ends of the crushing cylinder are hollow, and a crushing frame is installed inside the crushing cylinder through a motor. Two cutting knives are symmetrically provided at the bottom of the crushing cylinder, and a square frame is provided around the cutting knives. Two blades are symmetrically provided inside the square frame. A tray is fixed at the bottom of the vertical frame, and a top block is slidably inserted at the center of the tray. The shape of the top block is a circle with the same size as the two cutting knives. Clamps are installed on both sides of the sampling table, and the clamps and the tray are on the same straight line. A chute is opened on the surface of the sampling table, and a sliding seat is fixed at the bottom of the vertical frame. The sliding seat slides along the inside of the chute.

[0007] Further, the sampling component further includes a rotating ring. The rotating ring is rotatably installed at the top of the vertical frame through a rotating shaft, and the connecting plate is fixed on one side of the rotating ring. A shaft rod is slidably inserted into the rotating ring, and both ends of the shaft rod are rotatably installed on both sides of the sampling table through bearing brackets.

[0008] Further, convex strips are symmetrically fixed on the surface of the shaft rod, and clamping grooves are opened at the positions corresponding to the convex strips on the inner wall of the rotating ring. The rotating ring slides along the convex strips, and a socket is fixed at the position on the back of the vertical frame corresponding to the bottom of the collection tube after the connecting plate is flipped.

[0009] Further, a toothed ring is provided at the top of the cutting knife. A vertical rod is slidably inserted at the position corresponding to the toothed ring on the connecting plate, and a connecting frame is fixed at the bottom of the vertical rod. A rotating seat is fixed at the position corresponding to the bottom of the connecting frame on the toothed ring. The bottom of the connecting frame is rotatably installed inside the rotating seat.

[0010] Further, a limiting frame is fixed at the outer end of the rotating seat, and a toothed plate is slidably inserted into the limiting frame. The toothed plates of the four groups of sampling components pass through a connecting rope inside. Winding seats are rotatably installed at the top of both sides of the sampling table through bearings and torsion springs. Both ends of the connecting rope are wound on the winding shafts of the two winding seats at both ends, and both ends of the toothed plate are clamped on the connecting rope through fixed clips.

[0011] Further, pulling frames are slidably inserted on both sides of the toothed ring. The bottom of the pulling frame is fixedly connected to both sides of the square frame, and a spring is installed between the top of the pulling frame and the toothed ring.

[0012] Further, push plates are slidably inserted at the outer ends of both sides of the square frame, and the push plates are fixedly connected to the blades. A return spring is fixed between the push plates and the outer wall of the square frame. Sliding blocks are fixed on the other two sides of the square frame, and the sliding blocks are slidably clamped on the outer surface of the cutting knife.

[0013] Further, a chassis is fixed to the bottom of the top block. A vertical groove is formed in the vertical frame corresponding to the position of the chassis, and the chassis slides along the inside of the vertical groove.

[0014] Further, a bottom plate is provided at the bottom of the sampling table and is in pressing contact with the horizontal plane of the chassis. First electric push rods are fixed inside both sides of the sampling table, and the extending ends of the first electric push rods are fixedly connected to the bottom plate.

[0015] Further, second electric push rods are fixed to the tops of both sides of the sampling table, and a top plate is fixed to the extending ends of the second electric push rods. The top of the vertical rod is slidably sleeved on the surface of the top plate.

[0016] Advantages of the present invention:

[0017] 1. In the present invention, both ends of beef and mutton are clamped on the clamps on both sides of the sampling table. The bottom of the part to be used is supported by a tray, and the cutter is kept in the same straight line as the top block. After the cutter drills out the meat on the tray, it will contact the top block. At this time, the bottom plate is driven by the first electric push rod to move upward, and the top block presses the cutter to move upward, pushing out the cut meat strip from the meat body, which is convenient for subsequent truncation.

[0018] 2. After the cutting is completed and the cutter is sent out, manually press the pulling frame to move the square frame to the position where truncation is required, and at the same time squeeze the push plates on both sides, and truncate the meat strip with the blade. Cut meat strips of different lengths and positions are selected in the middle position as needed, and the rest of the parts are all discarded.

[0019] 3. When the connecting rope moves with the winding seats at both ends being wound up, it can drive the toothed plate to move along the limiting frame, and then drive the toothed ring and the cutter to move and drill into the meat. It can also slide along the connecting rope by unlocking the fixing clip to adjust the position of the sampling assembly on the connecting rope, so that multiple groups of toothed plates can rotate simultaneously, and then the four cutters can drill into the meat at the same time, improving the sampling efficiency.

[0020] 4. Through the sliding insertion of the top plate and the top of the vertical rod, the vertical rods and the connecting frames of the four sampling assemblies can be driven to move downward at the same time, and then the cutter is pushed downward to insert into the meat to intercept the meat strip. During the process, the vertical rod slides along the top plate. When the vertical frame slides along the sliding groove to adjust the position, the vertical rod will not be restricted by the top plate. At the same time, after intercepting the required meat block, the excess top and bottom meat strips are rotated through the rotating seat and the connecting frame, and are respectively poured out from the top and bottom of the cutter.

[0021] 5. Through the insertion connection of the shaft rod and the swivel ring, the present invention can uniformly drive the connecting plate to turn backward, thereby pouring the minced meat in the crushing cylinder into the collection tube. Moreover, the collection tube is inserted into the socket, and the user manually separates the collection tube from the rubber seat, which is convenient for adding reagents to culture microorganisms for the detection of Escherichia coli or other pollutants in the subsequent process.

[0022] 6. Compared with the prior art, the present invention can simultaneously sample long strip-shaped beef and mutton through multiple sampling components. The blades and cutters within the square frame facilitate intercepting the meat blocks at the required positions, and after being crushed, they are sent into the sampling tube, which is convenient for subsequent cultivation and detection of microorganisms. Multiple groups are carried out simultaneously during this process, and the sampling position can be freely adjusted, making it more convenient to use. At the same time, the detection of pollutants in beef and mutton is also more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the overall structural schematic diagram of a device for detecting surface pollutants of beef and mutton according to the present invention;

[0024] Figure 2 is the schematic diagram of the back structure of the sampling table of a device for detecting surface pollutants of beef and mutton according to the present invention;

[0025] Figure 3 is the schematic diagram of the front structure of the sampling table of a device for detecting surface pollutants of beef and mutton according to the present invention;

[0026] Figure 4 is the schematic diagram of the structure of the sampling component of a device for detecting surface pollutants of beef and mutton according to the present invention;

[0027] Figure 5 is the connection schematic diagram of the gear ring and the connecting frame of a device for detecting surface pollutants of beef and mutton according to the present invention;

[0028] Figure 6 is the connection schematic diagram of the gear ring and the gear plate of a device for detecting surface pollutants of beef and mutton according to the present invention;

[0029] Figure 7 is the internal schematic diagram of the crushing cylinder of a device for detecting surface pollutants of beef and mutton according to the present invention;

[0030] Figure 8 is the internal structural schematic diagram of the square frame of a device for detecting surface pollutants of beef and mutton according to the present invention.

[0031] In the figure: 1. Sampling table; 11. Clamp; 12. Slide groove; 13. First electric push rod; 14. Base plate; 15. Reel seat; 16. Connecting rope; 17. Second electric push rod; 2. Detection equipment; 3. Sampling assembly; 31. Vertical frame; 32. Slide block; 33. Shaft rod; 34. Top plate; 35. Tray; 36. Collection tube; 37. Rubber seat; 38. Connecting plate; 39. Vertical rod; 310. Ridge; 311. Swivel ring; 312. Socket; 313. Crushing cylinder; 314. Cutting knife; 315. Bottom frame; 316. Vertical groove; 317. Connecting frame; 318. Tooth ring; 319. Rotating seat; 320. Limiting frame; 321. Tooth plate; 322. Pulling frame; 323. Square frame; 324. Push plate; 325. Return spring; 326. Blade; 327. Crushing frame; 328. Sliding block; 329. Top block. Detailed implementation manners

[0032] To make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0033] Please refer to Figures 1 to 8 , the present invention provides a technical solution: a device for detecting surface contaminants of beef and mutton, including a sampling table 1. Four groups of sampling assemblies 3 are arranged on the front of the sampling table 1, and a detection device 2 is installed on the back of the sampling table 1. The sampling assembly 3 includes a vertical frame 31. A connecting plate 38 is provided at the top of the vertical frame 31, and a rubber seat 37 is fixed on the front end surface of the connecting plate 38. A collection tube 36 is inserted into the rubber seat 37, and a crushing cylinder 313 is fixed at the other end of the rubber seat 37. Both ends of the crushing cylinder 313 are hollow, and a crushing frame 327 is installed inside the crushing cylinder 313 through a motor. Two cutting knives 314 are symmetrically arranged at the bottom of the crushing cylinder 313, and a square frame 323 is arranged around the cutting knives 314. Two blades 326 are symmetrically arranged inside the square frame 323. A tray 35 is fixed at the bottom of the vertical frame 31, and a top block 329 is slidably inserted at the center of the tray 35. The shape of the top block 329 is a circle with the same size as the two cutting knives 314. Clamps 11 are installed on both sides of the sampling table 1. The clamps 11 and the tray 35 are on the same straight line. A slide groove 12 is opened on the surface of the sampling table 1, and a slide block 32 is fixed at the bottom of the vertical frame 31. The slide block 32 slides along the inside of the slide groove 12. In the detection device 2 of this solution, an instrument for detecting coliforms, Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli can be used, or an instrument for detecting PFCS perfluoro or polyfluorinated alkyl substances can be used. The detection methods are all prior arts. When in use, beef and mutton are placed on the sampling table 1 and clamped and fixed at both ends by the clamps 11. The four groups of sampling assemblies 3 are moved according to the position where sampling is required. Subsequently, the meat blocks are intercepted and broken by the sampling assembly 3 and sent into the sampling tube for subsequent contaminant detection.

[0034] In this embodiment, the sampling assembly 3 further includes a swivel ring 311. The top of the vertical frame 31 is rotatably mounted with a swivel ring 311 through a rotating shaft, and the connecting plate 38 is fixed to one side of the swivel ring 311. A shaft rod 33 is slidably inserted into the swivel ring 311, and both ends of the shaft rod 33 are rotatably mounted on both sides of the sampling table 1 through bearing brackets. Convex strips 310 are symmetrically fixed on the surface of the shaft rod 33. Card slots are provided at positions corresponding to the convex strips 310 on the inner wall of the swivel ring 311. The swivel ring 311 slides along the convex strips 310. A socket 312 is fixed to the back of the vertical frame 31 at a position corresponding to the bottom of the collection tube 36 after the connecting plate 38 is flipped. Through the insertion of the shaft rod 33 and the swivel ring 311, the connecting plate 38 can be uniformly driven to flip backward, thereby pouring the minced meat in the mincing cylinder 313 into the collection tube 36. And the collection tube 36 is inserted into the socket 312. Manually separating the collection tube 36 from the rubber seat 37 facilitates subsequent addition of reagents to culture microorganisms for the detection of Escherichia coli or other contaminants.

[0035] In this embodiment, a toothed ring 318 is provided at the top of the cutter 314. A vertical rod 39 is slidably inserted into the connecting plate 38 at a position corresponding to the toothed ring 318, and a connecting frame 317 is fixed to the bottom of the vertical rod 39. A rotating seat 319 is fixed to the position corresponding to the bottom of the connecting frame 317 on the toothed ring 318. The bottom of the connecting frame 317 is rotatably mounted inside the rotating seat 319. Second electric push rods 17 are fixed to the tops of both sides of the sampling table 1, and a top plate 34 is fixed to the extending end of the second electric push rod 17. The top of the vertical rod 39 is slidably sleeved on the surface of the top plate 34. Through the sliding insertion of the top plate 34 and the top of the vertical rod 39, the vertical rods 39 and the connecting frames 317 of the four groups of sampling assemblies 3 can be simultaneously driven to move downward, thereby pushing the cutter 314 downward and inserting it into the meat to cut meat strips. During this process, the vertical rod 39 slides along the top plate 34. When the vertical frame 31 slides and adjusts its position along the sliding groove 12, the vertical rod 39 will not be restricted by the top plate 34. At the same time, after cutting the required meat block, the excess top and bottom meat strips are poured out from the top and bottom of the cutter 314 respectively through the rotation of the rotating seat 319 and the connecting frame 317.

[0036] In this embodiment, a limiting frame 320 is fixed to the outer end of the rotating base 319, and a toothed plate 321 is slidably inserted into the limiting frame 320. The toothed plates 321 of the four sampling assemblies 3 pass through the connecting rope 16 inside. At the top of both sides of the sampling table 1, a winding base 15 is rotatably installed through bearings and torsion springs. The two ends of the connecting rope 16 are wound on the winding shafts of the two winding bases 15 at both ends. The two ends of the toothed plate 321 are clamped on the connecting rope 16 by fixing clips. The connection between the toothed plate 321 and the connecting rope 16 can select existing fixing clips, that is, the way of fixing by screw extrusion and clamping on the connecting rope 16. When the connecting rope 16 moves with the winding of the two winding bases 15 at both ends, it can drive the toothed plate 321 to move along the limiting frame 320, and then drive the movement of the toothed ring 318 and the cutting knife 314 to drill into the meat. It can also slide along the connecting rope 16 by unlocking the fixing clip to adjust the position of the sampling assembly 3 on the connecting rope 16, so as to keep the multiple toothed plates 321 rotating simultaneously. Then, the four cutting knives 314 can drill into the meat at the same time, improving the sampling efficiency.

[0037] In this embodiment, a pulling frame 322 is slidably inserted into both sides of the toothed ring 318. The bottom of the pulling frame 322 is fixedly connected to both sides of the square frame 323, and a spring is installed between the top of the pulling frame 322 and the toothed ring 318. A push plate 324 is slidably inserted into the outer ends of both sides of the square frame 323, and the push plate 324 is fixedly connected to the blade 326. A return spring 325 is fixed between the push plate 324 and the outer wall of the square frame 323. The other two sides of the square frame 323 are fixed with sliding blocks 328, and the sliding blocks 328 are slidably clamped on the outer surface of the cutting knife 314. During cutting, the square frame 323 is located at the top of the cutting knife 314. After cutting is completed and the cutting knife 314 is sent out, manually press the pulling frame 322 to move the square frame 323 to the position where it needs to be truncated, and at the same time squeeze the two push plates 324 on both sides to cut the meat strip by the blade 326. Cut meat strips of different lengths and positions in the middle as needed, and discard the remaining parts. The combined blades 326 in the square frame 323 can push the required meat pieces into the crushing cylinder 313 for chopping.

[0038] In this embodiment, a chassis 315 is fixed to the bottom of the top block 329. A vertical groove 316 is formed in the vertical frame 31 corresponding to the position of the chassis 315, and the chassis 315 slides along the inside of the vertical groove 316. A bottom plate 14 is provided at the bottom of the sampling table 1 and in contact with the horizontal plane of the chassis 315 by extrusion. First electric push rods 13 are fixed inside both sides of the sampling table 1, and the extending ends of the first electric push rods 13 are fixedly connected to the bottom plate 14. The bottom plate 14 is located at the bottom of the chassis 315. When the sampling assembly 3 adjusts the spacing and position along the sliding groove 12, it will not be interfered by the bottom plate 14, and the chassis 315 always maintains sliding contact with the bottom plate 14. The two ends of the beef and mutton are clamped on the clamps 11 on both sides of the sampling table 1. The bottom of the part to be used is supported by the tray 35, and the cutter 314 is kept in the same straight line as the top block 329. After the cutter 314 drills out the meat on the tray 35, it will contact the top block 329. At this time, the first electric push rod 13 drives the bottom plate 14 to move upward, and the top block 329 squeezes the cutter 314 to move upward, pushing out the cut meat strip from the body, facilitating subsequent truncation. In this technical process, the cutters 314 of all sampling assemblies 3 need to penetrate the body and cut according to the position. After cutting, first retract the top block 329, and the meat strip at the bottom of the truncation position of the blade 326 in the square 323 falls from the bottom of the cutter 314.

[0039] When in use, place the beef and mutton on the sampling table 1, and fix both ends by clamping with the clamp 11. Move the four groups of sampling components 3 according to the position where sampling is required, clamp both ends of the beef and mutton on the clamps 11 on both sides of the sampling table 1. The bottom of the part to be used is supported by the tray 35, and the cutter 314 and the top block 329 are kept in the same straight line. After the cutter 314 drills out the meat on the tray 35, it will contact the top block 329. At this time, drive the bottom plate 14 to move upward by the first electric push rod 13, and the top block 329 squeezes the cutter 314 to move upward, pushing out the cut meat strip from the meat body, which is convenient for subsequent truncation. In this technical process, the cutters 314 of all sampling components 3 need to penetrate the meat body, cut according to the position. After cutting is completed, first retract the top block 329, and the meat strip at the bottom of the truncation position of the blade 326 in the square box 323 drops from the bottom of the cutter 314. When cutting, the square box 323 is at the top of the cutter 314. After cutting is completed and the cutter 314 is sent out, manually press the pull frame 322 to move the square box 323 to the position where truncation is required, and at the same time squeeze the push plates 324 on both sides to truncate the meat strip with the blade 326. Cut meat strips of different lengths and positions as needed in the middle position, and discard the remaining parts. The combined blades 326 in the square box 323 can push the required meat block into the crushing cylinder 313 for shredding. When the connecting rope 16 moves with the winding of the winding seats 15 at both ends, it can drive the toothed plate 321 to move along the limiting frame 320, and then drive the movement of the toothed ring 318 and the cutter 314, drilling into the meat. It can also slide along the connecting rope 16 by unlocking the fixing clip to adjust the position of the sampling component 3 on the connecting rope 16, so that multiple groups of toothed plates 321 can rotate simultaneously, and then the four cutters 314 can drill into the meat at the same time, improving the sampling efficiency. By the sliding insertion of the top plate 34 and the top of the vertical rod 39, the vertical rods 39 and the connecting frames 317 of the four groups of sampling components 3 can be driven to move downward at the same time, and then the cutters 314 are pushed downward and inserted into the meat to intercept the meat strip. During the process, the vertical rod 39 slides along the top plate 34. When the vertical frame 31 slides along the sliding groove 12 to adjust the position, the vertical rod 39 will not be restricted by the top plate 34. At the same time, after intercepting the required meat block, the excess top and bottom meat strips are rotated by the rotating seat 319 and the connecting frame 317, and poured out from the top and bottom of the cutter 314 respectively. By the insertion of the shaft rod 33 and the rotating ring 311, the connecting plate 38 can be driven to turn backward uniformly, and then the minced meat in the crushing cylinder 313 is poured into the collection tube 36. And the collection tube 36 is inserted into the socket 312, and manually separate the collection tube 36 from the rubber seat 37, which is convenient for subsequent addition of reagents to culture microorganisms for the detection of Escherichia coli or other pollutants.

[0040] The foregoing has shown and described the basic principles, main features and advantages of the present invention. For a person skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms.

[0041] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard 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 detection device for surface contaminants of beef and mutton, comprising a sampling table (1), characterized in that: On the front of the sampling table (1), there are four groups of sampling components (3), and a detection device (2) is installed on the back of the sampling table (1). The sampling component (3) includes a vertical frame (31). At the top of the vertical frame (31), there is a connecting plate (38), and a rubber seat (37) is fixed on the front surface of the connecting plate (38). A collection tube (36) is inserted into the rubber seat (37), and a crushing cylinder (313) is fixed at the other end of the rubber seat (37). Both ends of the crushing cylinder (313) are hollowed out, and a crushing frame (327) is installed inside the crushing cylinder (313) through a motor. At the bottom of the crushing cylinder (313), two cutting knives (314) are symmetrically arranged, and a square frame (323) is arranged around the cutting knives (314). Inside the square frame (323), two blades (326) are symmetrically arranged. At the bottom of the vertical frame (31), a tray (35) is fixed, and a top block (329) is slidably inserted at the center of the tray (35). The top block (329) is circular in shape with the same size as the two cutting knives (314). Clamps (11) are installed on both sides of the sampling table (1), and the clamps (11) and the tray (35) are on the same straight line. A chute (12) is opened on the surface of the sampling table (1), and a sliding seat (32) is fixed at the bottom of the vertical frame (31). The sliding seat (32) slides along the inside of the chute (12).

2. The surface contaminant detection device for beef and mutton according to claim 1, characterized in that: The sampling component (3) further includes a rotating ring (311). The rotating ring (311) is rotatably installed at the top of the vertical frame (31) through a rotating shaft, and the connecting plate (38) is fixed on one side of the rotating ring (311). A shaft rod (33) is slidably inserted into the rotating ring (311), and both ends of the shaft rod (33) are rotatably installed on both sides of the sampling table (1) through bearing brackets.

3. The surface contaminant detection device for beef and mutton according to claim 2, characterized in that: On the surface of the shaft rod (33), convex strips (310) are symmetrically fixed. At the position corresponding to the convex strips (310) on the inner wall of the rotating ring (311), a card slot is opened. The rotating ring (311) slides along the convex strips (310). At the position on the back of the vertical frame (31) corresponding to the bottom of the collection tube (36) after the connecting plate (38) is flipped, a socket (312) is fixed.

4. The surface contaminant detection device for beef and mutton according to claim 3, wherein: At the top of the cutting knife (314), there is a toothed ring (318). A vertical rod (39) is slidably inserted into the connecting plate (38) at the position corresponding to the toothed ring (318), and a connecting frame (317) is fixed at the bottom of the vertical rod (39). At the position corresponding to the bottom of the connecting frame (317) on the toothed ring (318), a rotating seat (319) is fixed. The bottom of the connecting frame (317) is rotatably installed inside the rotating seat (319).

5. The surface contaminant detection device for beef and mutton according to claim 4, wherein: At the outer end of the rotating seat (319), a limiting frame (320) is fixed, and a toothed plate (321) is slidably inserted into the limiting frame (320). The toothed plates (321) of the four groups of sampling components (3) pass through a connecting rope (16). On both sides of the top of the sampling table (1), winding seats (15) are rotatably installed through bearings and torsion springs. Both ends of the connecting rope (16) are wound on the winding shafts of the two winding seats (15) at both ends, and both ends of the toothed plate (321) are clamped on the connecting rope (16) through fixed clips.

6. The detection device for surface contaminants of beef and mutton according to claim 5, characterized in that: On both sides of the toothed ring (318), a pulling frame (322) is slidably inserted. The bottom of the pulling frame (322) is fixedly connected to both sides of the square frame (323), and a spring is installed between the top of the pulling frame (322) and the toothed ring (318).

7. The surface contaminant detection device for beef and mutton according to claim 6, characterized in that: On the outer ends of both sides of the square frame (323), a push plate (324) is slidably inserted, and the push plate (324) is fixedly connected to the blade (326). A return spring (325) is fixed between the push plate (324) and the outer wall of the square frame (323). On the other two sides of the square frame (323), sliding blocks (328) are fixed, and the sliding blocks (328) are slidably clamped on the outer surface of the cutting knife (314).

8. The surface contaminant detection device for beef and mutton according to claim 7, characterized in that: The bottom of the top block (329) is fixedly connected to a bottom frame (315). A vertical groove (316) is provided at the position of the vertical frame (31) corresponding to the bottom frame (315), and the bottom frame (315) slides along the inside of the vertical groove (316).

9. The surface contaminant detection device for beef and mutton according to claim 8, wherein: A bottom plate (14) is provided at the bottom of the sampling table (1) and is in pressing contact with the horizontal plane of the bottom frame (315). Inside both sides of the sampling table (1), a first electric push rod (13) is fixed, and the extending end of the first electric push rod (13) is fixedly connected to the bottom plate (14).

10. The surface contaminant detection device for beef and mutton according to claim 9, characterized in that: On the top of both sides of the sampling table (1), a second electric push rod (17) is fixed, and the extending end of the second electric push rod (17) is fixedly connected to a top plate (34). The top of the vertical rod (39) is slidably sleeved on the surface of the top plate (34).

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