Clamp device for food detection

Abstract

A rotating seat is movably arranged on a mounting platform, a rotating driving mechanism is arranged between the mounting platform and the rotating seat, a limiting disc with a center opening is arranged on the rotating seat, and a plurality of limiting grooves with openings pointing to the center are evenly distributed in the limiting disc. A sliding seat is movably arranged in the limiting groove, a driving disc is movably arranged in a cavity between the limiting disc and the rotating seat, driving chutes of which the number is equal to that of the limiting groove are uniformly distributed in the driving disc, a driving column is arranged on the lower end surface of the sliding seat and is movably arranged in the driving chutes, and a transmission arm extends outwards on the outer wall of the driving disc; a rotation driving mechanism hinged to the transmission arm is arranged on the outer side of the rotating seat, and a bearing clamping mechanism capable of tightly holding the outer wall of food when the food is placed is hinged to the inner end of the sliding seat. The device is simple in structure, fruits such as pineapples can be effectively and rapidly fixed, shielding can be effectively reduced, and therefore the accuracy of a detection result is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of food detection, and particularly relates to a fixture device for food detection. Background Art

[0002] Pineapple (Ananas comosus (Linn.) Merrill) is a perennial evergreen herbaceous fruit tree of the genus Ananas in the family Bromeliaceae, and is one of the most characteristic and competitive tropical fruit varieties in southern China. Black heart disease is one of the main postharvest physiological diseases of pineapples. When black heart disease occurs, there are no external symptoms on the pineapple, but after cross-sectioning, it can be seen that the flesh around the core turns brown. Its incidence pattern is usually that semi-transparent water-soaked or light brown small spots first appear on the fruit axis or in the middle. As black heart disease worsens, the brown spots connect to form a patch and develop towards the fruit axis and flesh at the same time. Eventually, the core and flesh both turn dark brown, resulting in the loss of edible and commercial value of the pineapple. Pineapple black heart disease can occur throughout the year, especially commonly in pineapples harvested in autumn and winter, but its pathogenesis is not yet clear, and there is currently no commercial control method. Therefore, pineapple black heart disease has become a major problem in the pineapple industries of many countries. Black heart disease can lead to a decline in the quality of pineapple fruits, affect postharvest storage and sales of fruits, thus causing huge economic losses and affecting the sustainable development of the pineapple industry.

[0003] Research shows that the quality of pineapples with black heart disease deteriorates severely, and the contents of total sugar, organic acids, and ascorbic acid in the fruits decrease significantly. Moreover, due to the browning of the flesh, the commercial value is lost. However, since pineapples with black heart disease still retain their unique aroma, have no strange smell, and do not rot, it is impossible to distinguish black heart disease fruits from healthy fruits visually. And pineapples with black heart disease waste manpower and material resources during storage, transportation, and sales, and are prone to trade disputes, which have a great impact on the pineapple industry. Since black heart disease is a physiological disease of pineapples, its detection is difficult. In the prior art, visual detection technology has been used to detect pineapple black heart disease, but this method requires slicing the pineapple, causing irreversible damage to the pineapple, and has certain limitations. Therefore, establishing a rapid and accurate non-destructive detection method for black heart disease pineapples is a key technical problem urgently needed to be solved in the pineapple industry and is of great significance for pineapple production in reality.

[0004] Currently, visible / near-infrared spectroscopy, electronic nose, and machine vision technology all play important roles in the non-destructive intelligent detection of agricultural product quality. The occurrence of pineapple black heart disease starts from the fruit eyes near the core inside and then gradually spreads outwards. Electronic nose and machine vision technology focus more on the characteristics near the surface of agricultural products during non-destructive detection, while visible / near-infrared light can penetrate agricultural products to obtain internal quality characteristic information, which is more suitable for the non-destructive intelligent detection of pineapple black heart disease.

[0005] In the existing non-destructive testing equipment for pineapple quality based on transmission spectroscopy technology, when detecting the quality of pineapples, the sample to be tested is usually placed between a light source and a detector. The light detected by the detector is transmitted light or the light after interacting with the sample molecules (carrying information about the structure and composition of the sample), and the received spectral information reflects the information of the internal tissues of the fruit.

[0006] In the existing non-destructive testing equipment for pineapple quality based on transmission spectroscopy technology, the mechanism for supporting and fixing the sample to be tested, due to design defects, often causes partial occlusion of the pineapple or unstable fixation. Furthermore, it is prone to affecting the accuracy of the detection results due to occlusion or movement of the detection position, and there are certain limitations. Summary of the Invention

[0007] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a fixture device for food detection that is simple in structure, can effectively and quickly fix fruits such as pineapples, and can effectively reduce occlusion, thereby ensuring the accuracy of the detection results.

[0008] To achieve the above purpose, the present invention adopts the following scheme: A fixture device for food detection includes a mounting platform. It is characterized in that: a rotating seat is movably arranged on the mounting platform, a rotating drive mechanism capable of driving the rotating seat to rotate is provided between the mounting platform and the rotating seat, a limit disk with a central opening is provided on the rotating seat, a number of limit slots with openings pointing to the center are evenly distributed in the limit disk, a sliding seat is movably arranged in the limit slots, a drive disk is movably arranged in the cavity between the limit disk and the rotating seat, a number of drive inclined slots equivalent to the number of limit slots are evenly distributed on the drive disk, a drive column is provided on the lower end face of the sliding seat, the drive column is movably arranged in the drive inclined slots, a transmission arm extends outward on the outer wall of the drive disk, and a rotation drive mechanism hinged to the transmission arm is provided on the outer side of the rotating seat. A load-bearing clamping mechanism capable of tightly clamping the outer wall of the food when the food is placed is hinged at the inner end of the sliding seat.

[0009] As another improvement of the fixture device for food detection of the present invention, the load-bearing clamping mechanism includes a receiving groove opened at the inner end of the sliding seat, a clamping piece is hinged in the receiving groove through a hinge shaft, a connecting rod is hinged at the lower end of the clamping piece, a load-bearing platform is provided in the middle of the limit disk, the upper end of the connecting rod is hinged on the load-bearing platform, and a top pressure spring is provided between the lower end face of the load-bearing platform and the upper end face of the rotating seat.

[0010] As another improvement of the fixture device for food detection of the present invention, the clamping piece is made of a low-density material.

[0011] As another improvement of the clamp device for food testing of the present invention, an electromagnet capable of attracting the bearing platform downward is provided on the rotating seat below the bearing platform.

[0012] As another improvement of the clamp device for food inspection of the present invention, a supporting vertical rod is provided on the mounting platform on one side of the rotating seat, a supporting horizontal rod extending to the center position of the rotating seat is provided at the upper end of the supporting vertical rod, a through hole is provided on the supporting horizontal rod above the center position of the rotating seat, a movable pressure rod is provided in the through hole, and a lifting drive mechanism is provided on the supporting horizontal rod that can move the movable pressure rod up and down relative to the supporting horizontal rod.

[0013] As another improvement of the food testing fixture of the present invention, a rotating pressure plate is movably provided at the lower end of the movable pressure rod through a bearing, and a plurality of elastic column components are evenly distributed on the lower end surface of the rotating pressure plate.

[0014] As another improvement of the clamp device for food inspection of the present invention, the lifting drive mechanism includes a long groove arranged on one side of the movable pressure rod, a transmission rack is provided on the long groove, a lifting drive motor is provided on one side of the supporting cross bar, a lifting drive gear is provided on the output shaft of the lifting drive motor, the lifting drive gear is meshed with the transmission rack, a limiting convex strip is provided on the other side of the supporting cross bar, a limiting groove is provided at the position corresponding to the through hole and the limiting convex strip, and the limiting convex strip is movably arranged in the limiting groove.

[0015] As another improvement of the clamp device for food testing of the present invention, the rotary drive mechanism includes a plurality of transmission teeth evenly distributed on the outer wall of the lower end of the rotating seat in the circumferential direction, a rotary drive gear is provided on the mounting platform, the rotary drive gear is meshed with the transmission teeth, and a rotary drive motor is provided on the lower end surface of the mounting platform, the output shaft of the rotary drive motor extends out of the mounting platform and is connected to the rotary drive gear.

[0016] As another improvement of the clamp device for food inspection of the present invention, the rotation drive mechanism includes a mounting seat arranged on the outer wall of the rotating seat, a driving cylinder is hinged on the mounting seat, a driving head is provided on the output end of the driving cylinder, and the driving head is hinged to the transmission arm.

[0017] As another improvement of the clamp device for food inspection of the present invention, a limiting ring is provided on the rotating seat, the driving disk is movably limited in the limiting ring, the limiting disk is arranged on the limiting ring, a yielding arc groove is provided on one side of the limiting ring, and the transmission arm is arranged in the yielding arc groove.

[0018] In summary, the present invention has the following beneficial effects compared with the prior art: The invention has a simple structure, can effectively and quickly fix fruits such as pineapples, and can effectively reduce occlusion, thereby ensuring the accuracy of detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the present invention.

[0020] Figure 2 It is a three-dimensional schematic diagram of the internal structure of the present invention.

[0021] Figure 3 It is one of the partial cross-sectional schematic diagrams of the present invention.

[0022] Figure 4 It is a schematic diagram of the clamping piece of the present invention in the folded state.

[0023] Figure 5 This is the second partial cross-sectional schematic diagram of the present invention.

[0024] Figure 6 It is a three-dimensional schematic diagram of the driving disk and the rotating seat of the present invention.

[0025] Figure 7 It is a schematic diagram of the load-bearing clamping mechanism of the present invention.

[0026] Figure 8 It is a cross-sectional schematic diagram of the movable pressure rod and the lifting drive mechanism of the present invention.

[0027] In the figure: 1, mounting platform; 2, rotating seat; 3, rotating drive mechanism; 31, transmission teeth; 32, rotating drive gear; 33, rotating drive motor; 4, limit plate; 5 limit slot; 6, sliding seat; 7, drive plate; 8, driving inclined slot; 9, drive column; 10, transmission arm; 11, rotating drive mechanism; 111, mounting seat; 112, driving cylinder; 113, driving head; 12, bearing clamping mechanism; 121, receiving slot; 122, articulated shaft; 12 3. Clamping piece; 124. Connecting rod; 125. Carrying platform; 126. Pressing spring; 127. Electromagnet; 13. Supporting vertical rod; 14. Supporting horizontal rod; 15. Through hole; 16. Movable pressing rod; 17. Lifting drive mechanism; 171. Long missing groove; 172. Transmission rack; 173. Lifting drive motor; 174. Lifting drive gear; 175. Limiting convex strip; 18. Rotating pressure plate; 19. Elastic column assembly; 20. Limiting ring; 21. Yielding arc groove. DETAILED DESCRIPTION

[0028] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.

[0029] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and do not limit the protection scope of the present invention.

[0030] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention.

[0031] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and defined, the terms "mounted", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0032] As Figure 1-8As shown, a fixture device for food inspection includes a mounting platform 1, which can be an independent component or a mounting platform for food quality inspection equipment. This mounting platform is used as the supporting base of the entire device. It is made of high-strength metal material. The surface is finely polished and rust-proofed. It can remain stable in various complex working environments and provide a solid and reliable foundation for the operation of other components. A rotating seat 2 is movably arranged on the mounting platform 1. The rotating seat 2 is connected to the mounting platform 1 through a bearing, which ensures the smoothness and stability of the rotation process, and there is almost no jamming or shaking. A rotating drive mechanism 3 that can drive the rotating seat 2 to rotate is provided between the mounting platform 1 and the rotating seat 2. One embodiment of the rotating drive mechanism 3 in the present invention is composed of a motor, a reducer and a matching transmission gear. The motor provides initial power, the reducer can accurately adjust the speed, ensure that the rotating seat 2 rotates smoothly at a suitable speed, and the transmission gear efficiently transmits power to achieve accurate rotation of the rotating seat. Its rotation angle can be accurately controlled within a very small error range to meet the strict requirements of different detection scenarios for the rotation angle. A limiting disk 4 with a central opening is provided on the rotating seat 2. The limiting disk 4 is also made of a sturdy and durable metal material. A plurality of limiting grooves 5 with openings pointing to the center are evenly distributed in the limiting disk 4. The limiting grooves 5 can provide accurate guidance and positioning for the subsequent sliding seat 6. A sliding seat 6 is movably arranged in the limiting groove 5. In the present invention, the sliding seat 6 can slide back and forth flexibly in the limiting groove 5, and always remain stable during the sliding process without deviation or falling off. A driving disk 7 is movably arranged in the cavity between the limiting disk 4 and the rotating seat 2. The driving inclined grooves 8 with the same number as the limiting grooves 5 are evenly distributed on the driving disk 7. A driving column 9 is provided on the lower end surface of the sliding seat 6. The driving column 9 is movably arranged in the driving inclined groove 8. When the driving disk 7 rotates, the driving inclined groove 8 will drive the driving column 9 to move, thereby causing the sliding seat 6 to perform corresponding linear motion in the limiting groove 5. Through this ingenious mechanical structure design, the efficient conversion of the rotational motion of the driving disk 7 and the linear motion of the sliding seat is achieved. A transmission arm 10 extends outward from the outer wall of the driving disk 7. The transmission arm 10 is made of high-strength alloy material, has good rigidity and toughness, and can withstand a large driving force without deformation. A rotating driving mechanism 11 is provided on the outer side of the rotating seat 2 and is hinged to the transmission arm 10. A bearing clamping mechanism 12 is hinged to the inner end of the sliding seat 6 and can hold the outer wall of the food when the food is placed. When the food to be tested is placed on the bearing clamping mechanism 12, the bearing clamping mechanism 12 can automatically adjust the holding force according to the weight of the food, which can not only firmly clamp the food to ensure that the food will not be displaced during the testing process, but also will not cause any damage to the surface of the food, fully ensuring the accuracy and integrity of food testing.

[0033] The bearing and clamping mechanism 12 of the present invention includes a receiving groove 121 formed at the inner end of the sliding seat 6. A clamping piece 123 is hinged in the receiving groove 121 through a hinge shaft 122. The hinge shaft 122 is made of a high-strength and corrosion-resistant alloy material and its surface is hardened. This not only ensures its own durability but also effectively reduces the friction coefficient with the clamping piece 123, enabling the clamping piece 123 to rotate flexibly around the hinge shaft 122. A connecting rod 124 is hinged at the lower end of the clamping piece 123. A bearing platform 125 is provided in the middle of the limiting disc 4. The upper end of the connecting rod 124 is hinged on the bearing platform 125. When a food to be detected is placed on the bearing platform 125, under the action of gravity, the bearing platform 125 will move downward; and the clamping piece 123 is driven to rotate through the connecting rod 124, thereby clamping the food to be detected. A top pressure spring 126 is provided between the lower end surface of the bearing platform 125 and the upper end surface of the rotating seat 2. The top pressure spring 126 is made of high-quality spring steel material and has good elasticity and long-lasting fatigue life through heat treatment process. In the natural state, the top pressure spring 126 generates an upward top pressure on the bearing platform 125, and this top pressure is transmitted to the clamping piece 123 through the connecting rod 124, enabling the clamping piece to maintain a certain opening angle. When a food is placed on the bearing platform, the gravity of the food will overcome the elastic force of the top pressure spring, causing the bearing platform to move downward, and then driving the connecting rod and the clamping piece to move, realizing the clamping action on the outer wall of the food. When the food detection is completed and taken away, the top pressure spring will return to its original state, resetting the bearing platform and the clamping piece to prepare for the next detection.

[0034] The clamping piece 123 of the present invention is made of a low-density material. The low-density material can be nylon. It does not affect the penetration of rays.

[0035] An electromagnet 127 capable of attracting the bearing platform 125 downward is provided on the rotating seat 2 below the bearing platform 125 of the present invention. In the present invention, the downward attraction force on the bearing platform 125 can be increased through the electromagnet 127, thereby increasing the clamping force of the clamping piece 123 on the food to be detected.

[0036] A support vertical rod 13 is provided on the installation platform 1 on one side of the rotating seat 2 of the present invention. A support cross rod 14 extending towards the center position of the rotating seat 2 is provided at the upper end of the support vertical rod 13. A through hole 15 is provided on the support cross rod 14 above the center position of the rotating seat 2. A movable pressure rod 16 is provided in the through hole 15. A lifting drive mechanism 17 for enabling the movable pressure rod 16 to move up and down relative to the support cross rod 14 is provided on the support cross rod 14. In the present invention, the position of the movable pressure rod 16 can be adjusted through the lifting drive mechanism 17, thereby pressing the upper end of the food to be detected tightly.

[0037] In the present invention, a rotating pressure plate 18 is movably provided at the lower end of the movable pressure rod 16 through a bearing, and a plurality of elastic column components 19 are evenly distributed on the lower end surface of the rotating pressure plate 18 .

[0038] The lifting drive mechanism 17 of the present invention includes a long notch 171 arranged on one side of the movable pressure rod 16, and a transmission rack 172 is provided on the long notch 171. The transmission rack 172 is made of high-strength alloy material, and the surface is subjected to a special heat treatment process, and has good wear resistance and rigidity to ensure that it will not be easily deformed or damaged during the power transmission process, and can accurately transmit power and ensure the stability of movement.

[0039] A lifting drive motor 173 is provided on one side of the support crossbar 14. The lifting drive motor 173 is the power source of the entire lifting drive mechanism 17. It has a stable speed output and a strong torque, and can quickly and accurately start, stop and adjust the speed according to the control instructions of the equipment. The shell of the motor is made of metal material with good heat dissipation performance, which effectively ensures the stable operation of the motor under long-term continuous working conditions.

[0040] A lifting drive gear 174 is provided on the output shaft of the lifting drive motor 173. The lifting drive gear 174 is meshed with the transmission rack 172. Each rotation of the lifting drive gear 174 can drive the transmission rack 172 to achieve a smooth, non-stuck linear motion, thereby driving the movable pressure rod 16 to perform a lifting action. A limiting convex strip 175 is provided on the other side of the support crossbar 14, and a limiting groove 5 is provided at a position corresponding to the through hole 15 and the limiting convex strip 175. The limiting convex strip 175 is movably arranged in the limiting groove 5. The function of the limiting convex strip 175 is to accurately limit the motion trajectory of the movable pressure rod 16 to prevent it from unnecessary deviation or shaking during the lifting process. It has a regular shape, a smooth surface, and high dimensional accuracy.

[0041] The rotary drive mechanism 3 of the present invention comprises a plurality of transmission teeth 31 uniformly distributed along the circumferential direction on the outer wall of the lower end of the rotating seat 2, a rotary drive gear 32 is provided on the mounting platform 1, the rotary drive gear 32 is meshed with the transmission teeth 31, a rotary drive motor is provided on the lower end surface of the mounting platform 1, and the output shaft of the rotary drive motor extends out of the mounting platform 1 and is connected to the rotary drive gear 32.

[0042] The rotary drive mechanism 11 of the present invention includes a mounting seat 111 arranged on the outer wall of the rotating seat 2, a driving cylinder 112 is hinged on the mounting seat 111, a driving head 113 is provided on the output end of the driving cylinder 112, and the driving head 113 is hinged to the transmission arm 10.

[0043] In the present invention, a limiting ring 20 is provided on the rotating seat 2, the driving disk 7 is movably limited in the limiting ring 20, the limiting disk 4 is arranged on the limiting ring 20, a yielding arc groove 21 is provided on one side of the limiting ring 20, and the transmission arm 10 is arranged in the yielding arc groove 21.

[0044] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A fixture device for food testing, comprising a mounting platform (1), characterized in that: A rotating seat (2) is movably arranged on the mounting platform (1), a rotating drive mechanism (3) capable of driving the rotating seat (2) to rotate is arranged between the mounting platform (1) and the rotating seat (2), a limiting plate (4) with a central opening is arranged on the rotating seat (2), a plurality of limiting grooves (5) with openings pointing to the center are evenly distributed in the limiting plate (4), a sliding seat (6) is movably arranged in the limiting groove (5), a driving plate (7) is movably arranged in the cavity between the limiting plate (4) and the rotating seat (2), and a plurality of limiting grooves (5) are evenly distributed in the limiting plate (4) with the openings pointing to the center. The driving disc (7) is evenly distributed with driving inclined grooves (8) having the same number as the limiting grooves (5); a driving column (9) is provided on the lower end surface of the sliding seat (6); the driving column (9) is movably arranged in the driving inclined groove (8); a transmission arm (10) is extended outwardly on the outer wall of the driving disc (7); a rotating driving mechanism (11) hingedly connected to the transmission arm (10) is provided on the outer side of the rotating seat (2); and a bearing clamping mechanism (12) is hingedly connected to the inner end of the sliding seat (6) so as to hold the outer wall of the food tightly when the food is placed.

2. A food testing fixture according to claim 1, characterized in that: The bearing clamping mechanism (12) comprises a receiving groove (121) provided on the inner end of the sliding seat (6), a clamping plate (123) being hinged in the receiving groove (121) via a hinge shaft (122), a connecting rod (124) being hinged at the lower end of the clamping plate (123), a bearing platform (125) being provided in the middle of the limiting plate (4), the upper end of the connecting rod (124) being hinged on the bearing platform (125), and a pressing spring (126) being provided between the lower end surface of the bearing platform (125) and the upper end surface of the rotating seat (2).

3. A food testing fixture according to claim 2, characterized in that: The clamping sheet (123) is made of a low-density material.

4. A food testing fixture according to claim 2, characterized in that: An electromagnet (127) capable of attracting the bearing platform (125) downward is provided on the rotating seat (2) below the bearing platform (125).

5. The food testing fixture device according to claim 1, characterized in that: A support vertical rod (13) is provided on the mounting platform (1) on one side of the rotating seat (2); a support cross rod (14) extending toward the center position of the rotating seat (2) is provided at the upper end of the support vertical rod (13); a through hole (15) is provided on the support cross rod (14) above the center position of the rotating seat (2); a movable pressure rod (16) is provided in the through hole (15); and a lifting drive mechanism (17) is provided on the support cross rod (14) to enable the movable pressure rod (16) to move up and down relative to the support cross rod (14).

6. A food testing fixture according to claim 5, characterized in that: A rotating pressure plate (18) is movably provided at the lower end of the movable pressure rod (16) via a bearing, and a plurality of elastic column components (19) are evenly distributed on the lower end surface of the rotating pressure plate (18).

7. A food testing fixture according to claim 5, characterized in that: The lifting drive mechanism (17) comprises a long notch (171) arranged on one side of the movable pressure rod (16), a transmission rack (172) being arranged on the long notch (171), a lifting drive motor (173) being arranged on one side of the supporting cross bar (14), a lifting drive gear (174) being arranged on the output shaft of the lifting drive motor (173), the lifting drive gear (174) being meshed with the transmission rack (172), a limiting convex strip (175) being arranged on the other side of the supporting cross bar (14), a limiting groove (5) being arranged at a position corresponding to the through hole (15) and the limiting convex strip (175), and the limiting convex strip (175) being movably arranged in the limiting groove (5).

8. The food testing fixture device according to claim 1, characterized in that: The rotary drive mechanism (3) comprises a plurality of transmission teeth (31) uniformly distributed on the outer wall of the lower end of the rotary seat (2) in the circumferential direction; a rotary drive gear (32) is provided on the mounting platform (1); the rotary drive gear (32) meshes with the transmission teeth (31); a rotary drive motor (33) is provided on the lower end surface of the mounting platform (1); an output shaft of the rotary drive motor (33) extends out of the mounting platform (1) and is connected to the rotary drive gear (32).

9. A food testing fixture according to claim 1, characterized in that: The rotary drive mechanism (11) comprises a mounting seat (111) arranged on the outer wall of the rotating seat (2), a driving cylinder (112) being hingedly connected to the mounting seat (111), a driving head (113) being provided at the output end of the driving cylinder (112), and the driving head (113) being hingedly connected to the transmission arm (10).

10. The food testing fixture device according to claim 1, characterized in that: A limiting ring (20) is provided on the rotating seat (2), the driving disk (7) is movably limited in the limiting ring (20), the limiting disk (4) is arranged on the limiting ring (20), a clearance arc groove (21) is provided on one side of the limiting ring (20), and the transmission arm (10) is arranged in the clearance arc groove (21).

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