Crushing and sampling device for food detection

Abstract

The invention relates to the technical field of detection sampling, in particular to a crushing and sampling device for food detection, which comprises a base, a sampling groove and three crushing chambers are arranged on the outer wall of the base, the sampling groove and the crushing chambers are circumferentially distributed at equal intervals, and an intercepting plate is welded to the top of each crushing chamber. And a bracket is welded on the outer side wall of each crushing chamber. The crushing device further comprises a transfer mechanism. According to the device, through the arranged transfer mechanism, a sample is sequentially cut into a lower section, a middle section and an upper section, namely a deep-layer sample, a middle-layer sample and a surface-layer sample through two material dividing cutters, the stratified sampling effect is achieved, through the arranged pretreatment mechanism, two extrusion plates are close to each other, and the effect of extruding and crushing the sample is achieved; and meanwhile, the two extrusion plates can alternately slide back and forth in the axial direction, so that the effect of rubbing and crushing the samples is achieved, and the samples are crushed into tissue blocks convenient to crush in advance before being crushed.

Description

Technical Field

[0001] The invention belongs to the technical field of detection and sampling, and in particular relates to a crushing and sampling device for food detection. Background Art

[0002] During the food testing process, it is necessary to take samples of food tissue and then crush the samples to facilitate subsequent testing operations.

[0003] However, the existing sampling device can only sample the surface tissue of food and cannot achieve multi-layer sampling, resulting in a single sample, which affects the test results. In addition, the existing technology lacks a sample pretreatment function. When crushing, the food sample is directly put into the crushing box for crushing. Due to the large volume of the sample, it is difficult for the sample to smoothly enter between the crushing rollers. The food sample needs to be cut into pieces in advance before it can be crushed. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the background technology and to propose a crushing sampling device for food testing.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A pulverizing sampling device for food testing, comprising a base, a sampling slot and three pulverizing chambers are provided on the outer wall of the base, the sampling slots and the pulverizing chambers are equidistantly distributed in a circle, an interception plate is welded on the top of the pulverizing chamber, a bracket is welded on the outer side wall of each pulverizing chamber, and further comprising:

[0007] A transport mechanism is used to transport the sample obtained by the sampling mechanism to the pretreatment mechanism, and to cut and segment the sample during the transport process to obtain surface, middle and deep layer samples, so as to achieve the effect of stratified sampling. The transport mechanism is arranged on the base;

[0008] The sampling mechanism is used to perform deep drilling sampling on the tested food to obtain a cylindrical sample, which is convenient for the transport mechanism to perform stratification. The sampling mechanism is arranged on the transport mechanism;

[0009] And a pre-treatment mechanism is used to squeeze and crush the sample before crushing, so that the sample forms tissue fragments to facilitate subsequent crushing. The pre-treatment mechanism is arranged in the crushing chamber.

[0010] In the above-mentioned crushing and sampling device for food inspection, the transfer mechanism includes a mounting frame, a sleeve is welded on the top of the intercepting plate, an adjusting frame is welded on the top of the sleeve, two dividing knives are welded on the outer wall of the sleeve located between the adjusting frame and the intercepting plate, a material receiving port connected to the crushing chamber is opened on the outer wall of the intercepting plate, the dividing knife is located above any two adjacent material receiving ports, and a transfer motor is welded on the bottom of the base.

[0011] In the above-mentioned crushing and sampling device for food inspection, the main shaft of the transfer motor passes through the sleeve and extends to the top of the adjustment frame, the main shaft end of the transfer motor is welded with a mounting frame, the outer wall of the mounting frame is welded with a sampling motor, the main shaft of the sampling motor is welded with an electric push rod, the output end of the electric push rod is welded with an intercepting sleeve, and the intercepting sleeve can rotate with the mounting frame to a coaxial state with the material receiving port.

[0012] In the above-mentioned crushing sampling device for food inspection, a pair of symmetrically distributed installation grooves are opened in the interception sleeve, and a barb is rotatably inserted in the installation groove. A starting frame is slidably sleeved on the top outer wall of the interception sleeve, and the starting frame is adapted to the adjustment frame. A connecting rod is rotatably inserted on the outer wall of the starting frame, and the end of the connecting rod away from the starting frame is rotatably inserted on the outer wall of the barb, and an interception spring is welded between the outer wall of the starting frame and the inner wall of the installation groove.

[0013] In the above-mentioned crushing sampling device for food inspection, the sampling mechanism includes a sampling drill sleeve, a sampling drill sleeve is rotatably inserted into the bottom outer wall of the intercepting sleeve, crushing teeth are welded on the bottom outer wall of the sampling drill sleeve, a fixed shaft is welded on the bottom outer wall of the intercepting sleeve, an inner cavity is opened in the sampling drill sleeve, meshing teeth are welded on the bottom inner wall of the inner cavity, the fixed shaft extends into the inner cavity, a gear is rotatably inserted into the end wall of the fixed shaft, and the gear and the meshing teeth are meshed with each other.

[0014] In the above-mentioned crushing and sampling device for food inspection, a capstan is welded on the outer wall of the gear, a block is welded on the inner wall of the inner cavity, the bottom end of the inner cavity passes through the inner ring wall of the sampling drill sleeve, a cutting line is fixed on the outer wall of the capstan, the other end of the cutting line is fixed on the outer wall of the block, and the length of the cutting line is equal to the diameter of the cross-section circle of the inner ring wall of the sampling drill sleeve.

[0015] In the above-mentioned crushing and sampling device for food inspection, the pretreatment mechanism includes an extrusion plate, and a pair of extrusion plates with an inverted eight-shaped distribution are plugged into the inner wall of each crushing chamber through a rotating shaft, and a wedge block 2 is welded on the rotating shaft of each extrusion plate, and a reciprocating spring is welded between the outer wall of the wedge block 2 and the outer wall of the bracket, and a crushing motor is welded on the outer wall of the bracket located between the two extrusion plates, and a screw and a smooth rod are welded on the main shaft of the crushing motor, and a wedge block 1 is welded on the outer wall of the screw, and the wedge block 1 is adapted to the wedge block 2, and a pair of crushing rollers are rotatably plugged into the inner wall of the crushing chamber located below the extrusion plate.

[0016] In the above-mentioned crushing and sampling device for food inspection, a slider is slidably inserted on the outer wall of the bracket, and the slider is mounted on the outer wall of the screw through threaded fitting, a return spring is welded between the outer wall of the slider and the outer wall of the crushing chamber, a support rod is rotatably inserted on the outer wall of the slider, a floating frame is rotatably inserted on the outer wall of the support rod at one end away from the slider, the floating frame is slidably inserted on the outer wall of the crushing chamber, a sliding rod is welded on the outer wall of the extrusion plate on the side away from its own rotating shaft, the sliding rod is slidably inserted on the outer wall of the floating frame, and matching baffles are welded on the outer walls at both ends of each pair of extrusion plates.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Through the set transfer mechanism, when the interception sleeve drives the sample to turn through the three receiving ports in sequence, the start frame will first abut against the adjustment frame, so that the start frame moves up along the inclined surface of the adjustment frame, so that the connecting rod pulls the barb to shrink into the installation groove, and then the bottom end of the sample falls onto the interception plate. When the interception sleeve drives the sample to align with the receiving port, the sample is cut off by the dividing knife above the receiving port, so that the cut sample falls into the crushing chamber through the receiving port. In this way, the sample is cut into three sections, namely, the deep layer, the middle layer and the surface layer, by the two dividing knives in sequence, so as to achieve the effect of stratified sampling;

[0019] 2. Through the pre-treatment mechanism, when the segmented sample enters the crushing chamber through the receiving port, the sample falls between the two extrusion plates, and the crushing motor is started to drive the screw to rotate. Under the action of the thread, the slider approaches the floating frame. Under the action of the support rod, the floating frame moves up, so that the two extrusion plates are close to each other, so as to achieve the effect of extruding and crushing the sample. At the same time, the screw drives the wedge block 1 to rotate. Under the action of the wedge block 1 and the wedge block 2, the two extrusion plates can slide back and forth alternately along the axial direction, so as to achieve the effect of kneading and crushing the sample. When the size of the sample fragments can pass through the bottom end spacing of the two extrusion plates, the sample falls on the crushing roller for thorough crushing;

[0020] To summarize, through the set transfer mechanism, the sample is cut into three sections, namely, lower, middle and upper sections, by two dividing knives in sequence, that is, deep, middle and surface samples, to achieve the effect of stratified sampling, and through the set pretreatment mechanism, the two extrusion plates are brought close to each other to achieve the effect of extruding and crushing the sample, and at the same time, the two extrusion plates can slide back and forth alternately along the axial direction, so as to achieve the effect of kneading and crushing the sample, so that the sample is pre-crushed into tissue blocks that are easy to crush before crushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a three-dimensional cross-sectional schematic diagram of the overall structure of the present invention.

[0023] Figure 3 It is a three-dimensional cross-sectional schematic diagram of the interception sleeve of the present invention.

[0024] Figure 4 It is a three-dimensional cross-sectional schematic diagram of the sampling drill sleeve of the present invention.

[0025] Figure 5 It is a three-dimensional schematic diagram of the working state of the cutting line of the present invention.

[0026] Figure 6 It is a three-dimensional schematic diagram of the extruded plate of the present invention.

[0027] Figure 7 It is a three-dimensional schematic diagram of wedge block 1 and wedge block 2 of the present invention.

[0028] Figure 8 It is a three-dimensional schematic diagram of the working state of the overall structure of the present invention.

[0029] Fig. 9 for Figure 8 A magnified view of the structure at A.

[0030] Fig.10 It is a plan view schematic diagram of the working state of the pretreatment mechanism of the present invention.

[0031] In the figure: 1, base; 11, sampling slot; 12, crushing chamber; 121, interception plate; 122, material receiving port; 123, bracket; 13, material dividing knife; 14, adjustment frame; 15, sleeve; 2, transfer motor; 21, mounting frame; 3, sampling motor; 31, electric push rod; 32, interception sleeve; 321, fixed shaft; 322, mounting slot; 33, gear; 34, capstan; 341, cutting line; 4, starting frame; 41, connecting rod; 4 2. Intercepting spring; 43. Barb; 5. Sampling drill sleeve; 51. Crushing tooth; 52. Inner cavity; 521. Stop block; 522. Engaging tooth; 6. Extrusion plate; 61. Baffle; 62. Sliding rod; 63. Floating frame; 64. Sliding block; 641. Support rod; 642. Return spring; 65. Wedge block 2; 651. Reciprocating spring; 7. Crushing motor; 71. Screw; 711. Wedge block 1; 72. Light rod; 8. Crushing roller; 9. Sample. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] See also Figure 1-Figure 10 The present invention provides a technical solution: a pulverizing sampling device for food testing, comprising a base 1, a sampling slot 11 and three pulverizing chambers 12 are provided on the outer wall of the base 1, the sampling slot 11 and the pulverizing chambers 12 are equidistantly distributed in a circle, an intercepting plate 121 is welded on the top of the pulverizing chamber 12, and a bracket 123 is welded on the outer wall of each pulverizing chamber 12, and further comprising:

[0035] The transport mechanism is used to transport the sample 9 obtained by the sampling mechanism to the pretreatment mechanism, and cut and segment the sample 9 during the transport process to obtain surface, middle and deep samples 9 to achieve the effect of stratified sampling. The transport mechanism is arranged on the base 1;

[0036] The sampling mechanism is used to perform deep drilling sampling on the test food to obtain a cylindrical sample 9, which is convenient for the transport mechanism to perform stratification. The sampling mechanism is arranged on the transport mechanism;

[0037] And a pre-treatment mechanism is used to squeeze and crush the sample 9 before crushing, so that the sample 9 forms tissue fragments to facilitate subsequent crushing. The pre-treatment mechanism is arranged in the crushing chamber 12.

[0038] Specifically, the transfer mechanism includes a mounting frame 21, a sleeve 15 is welded to the top of the intercepting plate 121, an adjusting frame 14 is welded to the top of the sleeve 15, two dividing knives 13 are welded on the outer wall of the sleeve 15 located between the adjusting frame 14 and the intercepting plate 121, a receiving port 122 connected to the crushing chamber 12 is opened on the outer wall of the intercepting plate 121, and the dividing knife 13 is located above any two adjacent receiving ports 122, a transfer motor 2 is welded to the bottom of the base 1, the main shaft of the transfer motor 2 passes through the sleeve 15 and extends to the top of the adjusting frame 14, a mounting frame 21 is welded to the end of the main shaft of the transfer motor 2, and a sampling motor is welded to the outer wall of the mounting frame 21 3. An electric push rod 31 is welded on the main shaft of the sampling motor 3, and an interception sleeve 32 is welded on the output end of the electric push rod 31. The interception sleeve 32 can rotate with the mounting frame 21 to a coaxial state with the material receiving port 122. A pair of symmetrically distributed mounting grooves 322 are opened in the interception sleeve 32, and a barb 43 is rotatably inserted in the mounting groove 322. A starting frame 4 is slidably sleeved on the top outer wall of the interception sleeve 32, and the starting frame 4 is adapted to the adjustment frame 14. A connecting rod 41 is rotatably inserted on the outer wall of the starting frame 4, and one end of the connecting rod 41 away from the starting frame 4 is rotatably inserted on the outer wall of the barb 43, and an interception spring 42 is welded between the outer wall of the starting frame 4 and the inner wall of the mounting groove 322.

[0039] In the initial state, the interception spring 42 pulls the starter frame 4 downward, so that under the action of the connecting rod 41, the barb 43 is pushed out from the mounting groove 322, and the barb 43 can prevent the sample 9 from sliding out of the interception sleeve 32.

[0040] The above-mentioned transfer mechanism is further explained: after the sampling is completed by the sampling mechanism, the electric push rod 31 is controlled to retract, so that the interception sleeve 32 drives the sample 9 to move up, and at the same time, the starting frame 4 on the interception sleeve 32 and the adjustment frame 14 are located in the same plane, and the transfer motor 2 is started, so that the interception sleeve 32 drives the sample 9 to rotate through the three receiving ports 122 in sequence. In this process, the starting frame 4 will first abut against the adjustment frame 14, so that the starting frame 4 moves up along the inclined surface of the adjustment frame 14, thereby making the connecting rod 41 pulls the barb 43 to retract into the mounting groove 322, thereby causing the bottom end of the sample 9 to fall onto the interception plate 121. When the interception sleeve 32 drives the sample 9 to align with the receiving port 122, the sample 9 is cut off by the dividing knife 13 above the receiving port 122, so that the cut sample 9 falls into the crushing chamber 12 through the receiving port 122. In this way, the sample 9 is cut into three sections, namely, the deep layer, the middle layer and the surface layer sample 9, by the two dividing knives 13 in turn, thereby achieving the effect of stratified sampling.

[0041] Specifically, the sampling mechanism includes a sampling drill sleeve 5, the sampling drill sleeve 5 is rotatably inserted on the bottom outer wall of the intercepting sleeve 32, a crushing tooth 51 is welded on the bottom outer wall of the sampling drill sleeve 5, a fixed shaft 321 is welded on the bottom outer wall of the intercepting sleeve 32, an inner cavity 52 is opened in the sampling drill sleeve 5, a meshing tooth 522 is welded on the bottom inner wall of the inner cavity 52, the fixed shaft 321 extends into the inner cavity 52, a gear 33 is rotatably inserted on the end wall of the fixed shaft 321, the gear 33 and the meshing tooth 522 are meshed with each other, a capstan 34 is welded on the outer wall of the gear 33, a stopper 521 is welded on the inner wall of the inner cavity 52, the bottom end of the inner cavity 52 passes through the inner ring wall of the sampling drill sleeve 5, a cutting line 341 is fixed on the outer wall of the capstan 34, the other end of the cutting line 341 is fixed on the outer wall of the stopper 521, and the length of the cutting line 341 is equal to the diameter of the cross-sectional circle of the inner ring wall of the sampling drill sleeve 5.

[0042] During the rotation of the crushing teeth 51, the food can be cut into cylinders, thereby obtaining a cylindrical sample 9, which is convenient for cutting and stratification. The cutting line 341 can cut off the bottom end of the cylindrical sample 9. The length of the cutting line 341 is equal to the diameter of the cross-section circle of the inner ring wall of the sampling drill sleeve 5, so that when the capstan 34 approaches the stopper 521 from the farthest point, the capstan 34 will reel in the cutting line 341.

[0043] The above-mentioned sampling mechanism is further explained: when sampling, the electric push rod 31 is controlled to extend and the sampling motor 3 is started at the same time. The electric push rod 31 moves downward with the interception sleeve 32 and the sampling drill sleeve 5. When the sampling drill sleeve 5 contacts the food, the interception sleeve 32 starts to rotate relative to the sampling drill sleeve 5. When the fixed shaft 321 contacts the stopper 521, the interception sleeve 32 drives the sampling drill sleeve 5 to rotate. Under the joint action of the crushing teeth 51 and the electric push rod 31, the sampling drill sleeve 5 is fed into the deep layer of the food, and at the same time, a cylindrical sample 9 is cut in the sampling drill sleeve 5 and the interception sleeve 32. When the required depth is reached, the sampling motor 3 is controlled to rotate in the opposite direction, so that the interception sleeve 32 starts to rotate in the opposite direction relative to the sampling drill sleeve 5, so that the fixed shaft 321 is away from the stopper 52. 1. At the same time, under the meshing action of the meshing teeth 522 and the gear 33, the gear 33 drives the capstan 34 to rotate, so that the capstan 34 releases the cutting line 341, so that the cutting line 341 cuts the sample 9 in the sampling drill sleeve 5. When the capstan 34 moves to the farthest distance from the stopper 521, the cutting line 341 is fully extended and coincides with the inner diameter of the sampling drill sleeve 5. As the fixed shaft 321 rotates further, the capstan 34 starts to approach the stopper 521 again, so that the cutting line 341 is reeled in again. When the fixed shaft 321 abuts against the stopper 521 again, the cutting line 341 completes the cutting operation on the bottom end of the columnar sample 9, and then controls the electric push rod 31 to retract, and transports it under the action of the transport mechanism.

[0044] Specifically, the pretreatment mechanism includes an extrusion plate 6, and a pair of extrusion plates 6 with an inverted eight-shaped distribution are inserted and rotated on the inner wall of each crushing chamber 12 through a rotating shaft. A wedge block 2 65 is welded on the rotating shaft of each extrusion plate 6, and a reciprocating spring 651 is welded between the outer wall of the wedge block 2 65 and the outer wall of the bracket 123. A crushing motor 7 is welded on the outer wall of the bracket 123 located between the two extrusion plates 6, and a screw 71 and a light rod 72 are welded on the main shaft of the crushing motor 7. A wedge block 1 711 is welded on the outer wall of the screw 71, and the wedge block 1 711 is adapted to the wedge block 2 65. A pair of A slider 64 is slidably inserted into the outer wall of the crushing roller 8 and the bracket 123. The slider 64 is threadedly fitted on the outer wall of the screw 71. A return spring 642 is welded between the outer wall of the slider 64 and the outer wall of the crushing chamber 12. A support rod 641 is rotatably inserted into the outer wall of the slider 64. A floating frame 63 is rotatably inserted into the outer wall of the support rod 641 at one end away from the slider 64. The floating frame 63 is slidably inserted into the outer wall of the crushing chamber 12. A slide bar 62 is welded on the outer wall of the extrusion plate 6 away from its own rotating shaft. The slide bar 62 is slidably inserted into the outer wall of the floating frame 63. Matching baffles 61 are welded on the outer walls at both ends of each pair of extrusion plates 6.

[0045] In the initial state, the slider 64 is located on the side close to the crushing motor 7, so that the support rod 641 pulls the floating frame 63 downward, so that the floating frame 63 drives the two extrusion plates 6 to open, which is convenient for receiving materials. The crushing roller 8 can be connected to the light rod 72 through a pulley transmission mechanism, and an independent power source can also be set to drive it.

[0046] The above-mentioned pretreatment mechanism is further explained as follows: when the segmented sample 9 enters the crushing chamber 12 through the receiving port 122, the sample 9 falls between the two extrusion plates 6, and the crushing motor 7 is started to drive the screw 71 to rotate. Under the action of the thread, the slider 64 approaches the floating frame 63. Under the action of the support rod 641, the floating frame 63 moves up, so that the two extrusion plates 6 are close to each other, so as to achieve the effect of extruding and crushing the sample 9. After the slider 64 moves to the light rod 72, the extrusion plate 6 is retracted and extended to the limit position. At the same time, the screw 7 1 drives the wedge block 1 711 to rotate. Under the cooperation of the wedge block 1 711 and the wedge block 2 65, the two extrusion plates 6 can slide back and forth alternately along the axial direction, so as to achieve the effect of kneading and crushing the sample 9. When the size of the fragments of the sample 9 can pass through the bottom end spacing of the two extrusion plates 6, the sample 9 falls onto the crushing roller 8 and is completely crushed. After the crushing is completed, the crushing motor 7 is controlled to reverse, so that under the action of the reset spring 642, the slider 64 is again aligned with the screw 71, so that the slider 64 slides and resets along the screw 71.

[0047] The working principle and use process of the present invention are as follows: food is placed in the sampling groove 11, the electric push rod 31 is controlled to extend and the sampling motor 3 is started at the same time, the electric push rod 31 with the interception sleeve 32 and the sampling drill sleeve 5 moves downward, when the sampling drill sleeve 5 contacts the food, under the action of the sampling mechanism, a cylindrical sample 9 is obtained in the interception sleeve 32 and the sampling drill sleeve 5, after the sampling is completed, the electric push rod 31 is controlled to contract, under the action of the transfer mechanism, the interception sleeve 32 drives the sample 9 to move upward, and at the same time, the interception sleeve 32 drives the sample 9 to rotate through the three receiving ports 122 in sequence, when the interception sleeve 32 drives the sample 9 to align with the receiving port 122, the sample 9 is cut off by the dividing knife 13 above the receiving port 122, so that the cut sample 9 is The sample 9 falls into the crushing chamber 12 through the material receiving port 122, and is cut into three sections, namely, deep, middle and surface samples 9, by two dividing knives 13 in turn, to achieve the effect of stratified sampling. When the segmented sample 9 enters the crushing chamber 12 through the material receiving port 122, the sample 9 falls between the two extrusion plates 6, and the crushing motor 7 is started to drive the screw 71 to rotate. Under the action of the pretreatment mechanism, the two extrusion plates 6 are close to each other to achieve the effect of extruding and crushing the sample 9. At the same time, under the cooperation of wedge block 1 711 and wedge block 2 65, the two extrusion plates 6 can slide back and forth alternately along the axial direction, thereby achieving the effect of kneading and crushing the sample 9.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pulverizing sampling device for food testing, comprising a base (1), wherein a sampling slot (11) and three pulverizing chambers (12) are provided on the outer wall of the base (1), wherein the sampling slot (11) and the pulverizing chambers (12) are equidistantly distributed around the circumference, an intercepting plate (121) is welded to the top of the pulverizing chamber (12), and a bracket (123) is welded to the outer wall of each pulverizing chamber (12), characterized in that: Also includes: A transport mechanism is used to transport the sample (9) obtained by the sampling mechanism to the pretreatment mechanism, and to cut and segment the sample (9) during the transport process to obtain surface, middle and deep layer samples (9) to achieve a layered sampling effect, wherein the transport mechanism is arranged on the base (1); A sampling mechanism, used for deep drilling and sampling of the test food to obtain a cylindrical sample (9) for facilitating stratification by the transport mechanism, wherein the sampling mechanism is arranged on the transport mechanism; and a pre-treatment mechanism for squeezing and crushing the sample (9) before crushing, so that the sample (9) forms tissue fragments to facilitate subsequent crushing, wherein the pre-treatment mechanism is arranged in the crushing chamber (12).

2. A crushing sampling device for food testing according to claim 1, characterized in that: The transfer mechanism comprises a mounting frame (21), a sleeve (15) is welded to the top of the intercepting plate (121), an adjusting frame (14) is welded to the top of the sleeve (15), two material dividing knives (13) are welded on the outer wall of the sleeve (15) located between the adjusting frame (14) and the intercepting plate (121), a material receiving port (122) connected to the crushing chamber (12) is opened on the outer wall of the intercepting plate (121), and the material dividing knife (13) is located above any two adjacent material receiving ports (122), and a transfer motor (2) is welded to the bottom of the base (1).

3. A crushing sampling device for food testing according to claim 2, characterized in that: The main shaft of the transfer motor (2) passes through the sleeve (15) and extends to the top of the adjustment frame (14); a mounting frame (21) is welded to the end of the main shaft of the transfer motor (2); a sampling motor (3) is welded to the outer wall of the mounting frame (21); an electric push rod (31) is welded to the main shaft of the sampling motor (3); an interception sleeve (32) is welded to the output end of the electric push rod (31); and the interception sleeve (32) can rotate with the mounting frame (21) to a coaxial state with the material receiving port (122).

4. A crushing sampling device for food testing according to claim 3, characterized in that: A pair of symmetrically distributed mounting grooves (322) are provided in the interception sleeve (32), a barb (43) is rotatably inserted in the mounting groove (322), a starting frame (4) is slidably sleeved on the top outer wall of the interception sleeve (32), the starting frame (4) is adapted to the adjustment frame (14), a connecting rod (41) is rotatably inserted on the outer wall of the starting frame (4), one end of the connecting rod (41) away from the starting frame (4) is rotatably inserted on the outer wall of the barb (43), and an interception spring (42) is welded between the outer wall of the starting frame (4) and the inner wall of the mounting groove (322).

5. A crushing sampling device for food testing according to claim 4, characterized in that: The sampling mechanism comprises a sampling drill sleeve (5), the sampling drill sleeve (5) is rotatably plugged into the bottom outer wall of the intercepting sleeve (32), a crushing tooth (51) is welded on the bottom outer wall of the sampling drill sleeve (5), a fixed shaft (321) is welded on the bottom outer wall of the intercepting sleeve (32), an inner cavity (52) is opened in the sampling drill sleeve (5), meshing teeth (522) are welded on the bottom inner wall of the inner cavity (52), the fixed shaft (321) extends into the inner cavity (52), a gear (33) is rotatably plugged into the end wall of the fixed shaft (321), and the gear (33) and the meshing teeth (522) are meshed with each other.

6. A comminution sampling device for food testing according to claim 5, characterized in that: A capstan (34) is welded on the outer wall of the gear (33), a stopper (521) is welded on the inner wall of the inner cavity (52), the bottom end of the inner cavity (52) penetrates the inner ring wall of the sampling drill sleeve (5), a cutting line (341) is fixed on the outer wall of the capstan (34), the other end of the cutting line (341) is fixed on the outer wall of the stopper (521), and the length of the cutting line (341) is equal to the diameter of the cross-section circle of the inner ring wall of the sampling drill sleeve (5).

7. A crushing sampling device for food testing according to claim 1, characterized in that: The pre-treatment mechanism comprises an extrusion plate (6), a pair of extrusion plates (6) arranged in an inverted eight-shaped pattern are rotatably plugged into the inner wall of each of the crushing chambers (12) via a rotating shaft, a wedge block 2 (65) is welded to the rotating shaft of each of the extrusion plates (6), a reciprocating spring (651) is welded between the outer wall of the wedge block 2 (65) and the outer wall of the bracket (123), a crushing motor (7) is welded to the outer wall of the bracket (123) located between the two extrusion plates (6), a screw rod (71) and a smooth rod (72) are welded to the main shaft of the crushing motor (7), a wedge block 1 (711) is welded to the outer wall of the screw rod (71), and the wedge block 1 (711) is matched with the wedge block 2 (65), and a pair of crushing rollers (8) are rotatably plugged into the inner wall of the crushing chamber (12) located below the extrusion plate (6).

8. A pulverizing sampling device for food testing according to claim 7, characterized in that: A slider (64) is slidably inserted on the outer wall of the bracket (123), and the slider (64) is sleeved on the outer wall of the screw rod (71) through threaded fitting. A return spring (642) is welded between the outer wall of the slider (64) and the outer wall of the crushing chamber (12). A support rod (641) is rotatably inserted on the outer wall of the slider (64), and a floating frame (63) is rotatably inserted on the outer wall of the end of the support rod (641) away from the slider (64). The floating frame (63) is slidably inserted on the outer wall of the crushing chamber (12). A slide rod (62) is welded on the outer wall of the extrusion plate (6) away from its own rotating shaft, and the slide rod (62) is slidably inserted on the outer wall of the floating frame (63). Matching baffles (61) are welded on the outer walls of both ends of each pair of extrusion plates (6).

Images