Anti-residue sample crusher for food safety detection

Abstract

The utility model discloses an anti-residue sample crusher for food safety detection, which comprises a sample crusher main body, a motor is arranged in the sample crusher main body, the output end of the motor is in key connection with a driving shaft, the bottom end of the driving shaft is rotatably provided with a blade, and a direction adjusting mechanism is arranged between the blade and the driving shaft. The direction adjusting mechanism is arranged between the blades and the driving shaft, the blades can be matched with the sample crusher body to crush samples in the parallel state, and the blades can be adjusted to be perpendicular to the horizontal plane through the direction adjusting mechanism after sample crushing is completed. At the moment, when the blade is placed below the faucet, the two faces of the blade can be washed and wiped in cooperation with the wiping mechanism moving vertically, so that residual samples on the surface of the blade are cleaned, pollution to follow-up samples is prevented, the hands of workers can be prevented from making direct contact with the blade during wiping, and the working efficiency is improved. And therefore, the worker can be protected.

Description

Technical Field

[0001] This utility model relates to the field of food safety testing technology, specifically to a sample crusher for food safety testing that prevents residue buildup. Background Technology

[0002] Food safety testing involves detecting harmful substances in food according to indicators, mainly harmful and toxic indicators such as heavy metals and aflatoxin. In the process of large-scale and continuous food production, in order to ensure that the produced food meets various testing indicators, random sampling is often conducted. Before food testing, it is often necessary to dry and pulverize the food for subsequent testing. Therefore, a large number of pulverizing devices for food safety inspection have emerged in the existing technology.

[0003] Current methods for pulverizing samples involve placing the sample in a bowl and then rotating a shaft driven by a motor. Horizontal blades are mounted on the shaft, allowing the sample to be pulverized inside the bowl. However, this method results in some sample remaining on the blades. For highly viscous samples, the sharp blades make it difficult to repeatedly scrub the sample off the blades during cleaning, causing this residue to contaminate subsequent sample pulverization. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a residue-free food safety testing sample crusher.

[0005] This utility model is achieved through the following technical solution:

[0006] A residue-free food safety testing sample crusher includes a sample crusher body, a motor installed inside the sample crusher body, a drive shaft keyed to the output end of the motor, a blade rotatably mounted at the bottom end of the drive shaft, a direction adjustment mechanism between the blade and the drive shaft, and a wiping mechanism on the surface of the drive shaft.

[0007] The direction adjustment mechanism includes a rotating shaft, a connecting shaft, and an end cap. One end of the rotating shaft is fixed to the surface of the blade. The rotating shaft is rotatably mounted on the surface of the drive shaft, and one end of the rotating shaft extends into the interior of the drive shaft. The end cap is rotatably mounted on the bottom of the drive shaft via a locking structure. The bottom end of the connecting shaft is fixed to the center of the end cap, and the top end of the connecting shaft is rotatably mounted on the top of the inner wall of the drive shaft. The rotating shaft and the connecting shaft are connected via a transmission structure.

[0008] The wiping mechanism includes a connecting seat, a traction seat, a movable seat, and a sponge. The connecting seat is fixedly mounted on the surface of the rotating shaft. The traction seat is vertically slidably mounted on the surface of the connecting seat through a limiting structure. Both movable seats are rotatably mounted on both sides of the bottom of the traction seat through pins and torsion springs. The sponge is fixedly installed inside the movable seat through a receiving structure. A sealing piece is interference-fitted between the two movable seats.

[0009] Preferably, the locking structure includes a hemispherical locking groove, a cavity, a spring, and a locking block. The cavity is disposed on the side wall of the end cap, the hemispherical locking groove is disposed on the inner wall of the rotating shaft, the locking block is slidably disposed inside the cavity, and one end of the locking block is engaged inside the hemispherical locking groove. The spring is fixed between the locking block and the cavity.

[0010] Preferably, the transmission structure includes a first bevel gear and a second bevel gear, the first bevel gear being keyed to the surface of the rotating shaft, the second bevel gear being keyed to the surface of the connecting shaft, and the first bevel gear and the second bevel gear meshing with each other.

[0011] Preferably, the limiting structure includes a sliding groove and a limiting slider. The limiting slider is fixedly disposed on the inner wall of the traction seat, the sliding groove is disposed on the side of the connecting seat, and the limiting slider is slidably disposed inside the sliding groove.

[0012] Preferably, the receiving structure includes a receiving groove and a retaining edge. The receiving groove is formed on the surface of the movable seat, and the retaining edge is fixedly disposed on the inner wall of the receiving groove and flush with the surface of the movable seat. The sponge is slidably disposed inside the receiving groove, and the surface of the sponge is provided with a notch that matches the retaining edge. The notch abuts against the surface of the retaining edge. The two sides of the sealing piece are respectively interference-fitted to the inner walls of the two receiving grooves.

[0013] Preferably, a first fixing mechanism is provided between the movable seat and the traction seat. The first fixing mechanism includes a frame, a guide groove, a guide block, and a blocking block. The blocking block is fixedly disposed on the surface of the movable seat, the guide groove is disposed on the surface of the traction seat, the guide block is fixedly disposed on the inner wall of the frame, the guide block is slidably disposed inside the guide groove, the frame is slidably disposed on the surface of the drive shaft, and the bottom of the frame abuts against the top of the blocking block.

[0014] Preferably, a second fixing mechanism is provided between the movable seat and the connecting seat. The second fixing mechanism includes a metal top plate and a magnetic sheet. The magnetic sheet is adhered to the top of the traction seat, the metal top plate is fixedly disposed on the top of the connecting seat and perpendicular to the drive shaft, and the magnetic sheet is adsorbed on the bottom of the metal top plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This device incorporates a direction adjustment mechanism between the blade and the drive shaft. When the blade is in a parallel state, it can work with the main body of the crusher to crush the sample. After crushing, the direction adjustment mechanism can adjust the blade to be perpendicular to the horizontal plane. When the blade is placed under a faucet, the vertically moving wiping mechanism can rinse and wipe both sides of the blade, thereby cleaning the sample residue on the blade surface to prevent contamination of subsequent samples. Moreover, the wiping process avoids direct contact between the operator's hands and the blade, thus protecting the operator. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the unfolded movable base of this utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure between the traction seat and the connecting seat of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure between the sponge eraser and the movable base of this utility model;

[0021] Figure 5 This is a cross-sectional view of the bottom of the rotating shaft of this utility model;

[0022] Figure 6 This is a schematic diagram of the main structure of the locking structure of this utility model;

[0023] Figure 7 This utility model Figure 1 A magnified structural diagram of area A in the middle.

[0024] In the diagram: 1. Crusher body; 2. Drive shaft; 3. Blade; 4. Rotating shaft; 5. Connecting shaft; 6. End cap; 7. Connecting seat; 8. Traction seat; 9. Movable seat; 10. Sponge wiper; 11. Pin; 12. Torsion spring; 13. Sealing plate; 14. Hemispherical locking groove; 15. Cavity; 16. Spring; 17. Locking block; 18. First bevel gear; 19. Second bevel gear; 20. Slide groove; 21. Limiting slider; 22. Receiving groove; 23. Edge retainer; 24. Frame; 25. Guide groove; 26. Guide block; 27. Blocking block; 28. Metal top plate; 29. ​​Magnetic piece; 30. Notch. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-7 The embodiments provided by this utility model are as follows:

[0027] A residue-free food safety testing sample crusher includes a sample crusher body 1, a motor installed inside the sample crusher body 1, a drive shaft 2 keyed to the output end of the motor, a blade 3 rotatably mounted at the bottom end of the drive shaft 2, a direction adjustment mechanism between the blade 3 and the drive shaft 2, and a wiping mechanism on the surface of the drive shaft 2.

[0028] Please see Figure 1 and 2 The motor inside the crusher body 1 can drive the blade 3 to rotate through the drive shaft 2 to crush the food sample inside the bowl. After crushing, the blade 3 is driven to rotate through the direction adjustment mechanism. Then the whole unit is moved under the faucet and the wiping mechanism is manually operated to rinse and wipe the blade 3.

[0029] The direction adjustment mechanism includes a rotating shaft 4, a connecting shaft 5, and an end cap 6. One end of the rotating shaft 4 is fixed to the surface of the blade 3, and the rotating shaft 4 is rotatably mounted on the surface of the drive shaft 2, with one end of the rotating shaft 4 extending into the interior of the drive shaft 2. The end cap 6 is rotatably mounted on the bottom of the drive shaft 2 via a locking structure. The bottom end of the connecting shaft 5 is fixed to the center of the end cap 6, and the top end of the connecting shaft 5 is rotatably mounted on the top of the inner wall of the drive shaft 2. The rotating shaft 4 and the connecting shaft 5 are connected via a transmission structure. The locking structure includes a hemispherical locking groove 14, a cavity 15, a spring 16, and a lock. The fixed block 17 and cavity 15 are disposed on the side wall of the end cover 6. The hemispherical locking groove 14 is disposed on the inner wall of the rotating shaft 4. The locking block 17 is slidably disposed inside the cavity 15, and one end of the locking block 17 is engaged inside the hemispherical locking groove 14. The spring 16 is fixed between the locking block 17 and the cavity 15. The transmission structure includes a first bevel gear 18 and a second bevel gear 19. The first bevel gear 18 is keyed to the surface of the rotating shaft 4, and the second bevel gear 19 is keyed to the surface of the connecting shaft 5. The first bevel gear 18 and the second bevel gear 19 mesh with each other.

[0030] Please see Figure 5 and 6After the end cover 6 is rotated, the end cover 6 can drive the locking block 17 to rotate synchronously through the cavity 15. At this time, one end of the locking block 17 will disengage from the hemispherical locking groove 14, and the locking block 17 will move towards the inside of the cavity 15. At the same time, the compressed spring 16 stores energy. As the end cover 6 rotates, the end cover 6 can drive the first bevel gear 18 to rotate 90° through the connecting shaft 5. The first bevel gear 18 can then drive the rotating shaft 4 to rotate 90° through the second bevel gear 19, thereby causing the rotating shaft 4 to drive the blade 3 to rotate 90°. At this time, the end cover 6 can drive the locking block 17 to move into the next hemispherical locking groove 14. The spring 16 then releases energy to drive one end of the locking block 17 to move from the inside of the cavity 15 into the hemispherical locking groove 14 to lock the end cover 6.

[0031] It should be noted that since the first bevel gear 18 is located between the two second bevel gears 19, when the first bevel gear 18 rotates, the two second bevel gears 19 rotate in opposite directions. Therefore, the two blades 3 can be driven to rotate in opposite directions through the rotating shaft 4. However, the blades 3 are symmetrical about the center of the drive shaft 2 when crushing the food sample. Therefore, when the blades 3 rotate in opposite directions, they can rotate into a symmetrical structure so that the two blades 3 can be wiped at the same time.

[0032] The wiping mechanism includes a connecting seat 7, a traction seat 8, a movable seat 9, and a sponge 10. The connecting seat 7 is fixedly mounted on the surface of the rotating shaft 4. The traction seat 8 is vertically slidably mounted on the surface of the connecting seat 7 via a limiting structure. Both movable seats 9 are rotatably mounted on both sides of the bottom of the traction seat 8 via pins 11 and torsion springs 12. The sponge 10 is fixedly installed inside the movable seats 9 via a receiving structure. A sealing piece 13 is interference-fitted between the two movable seats 9. The limiting structure includes a sliding groove 20 and a limiting slider 21. The limiting slider 21 is fixedly mounted on the inner wall of the traction seat 8. The slide groove 20 is provided on the side of the connecting seat 7, the limiting slider 21 is slidably provided inside the slide groove 20, the receiving structure includes the receiving groove 22 and the baffle 23, the receiving groove 22 is opened on the surface of the movable seat 9, the baffle 23 is fixedly provided on the inner wall of the receiving groove 22 and is flush with the surface of the movable seat 9, the sponge 10 is slidably provided inside the receiving groove 22, the surface of the sponge 10 is provided with a notch 30 that matches the baffle 23, the notch 30 abuts against the surface of the baffle 23, and the two sides of the sealing piece 13 are respectively interference connected to the inner walls of the two receiving grooves 22.

[0033] Please see Figure 1 , 23 and 4, the movable seat 9 can form a 90° angle with the traction seat 8 under the action of the torsion spring 12. At this time, the traction seat 8 can be manually pushed to slide on the surface of the connecting seat 7. The traction seat 8 can drive the limiting slider 21 to slide inside the limiting groove. When the traction seat 8 moves down, it can drive the movable seat 9 to move down synchronously. When the movable seat 9 moves down, it can drive the sponge wiping 10 to move down synchronously through the receiving groove 22 and the stop 23, and gradually contact the two sides of the blade 3. With the continuous pushing of the traction seat 8, the sponge wiping 10 can eventually move down and wipe the surface of the blade 3. By reciprocating pushing and pulling the traction seat 8, the sponge wiping 10 can be driven to move vertically back and forth on the surface of the blade 3, thereby removing the food sample residue on the blade 3. After wiping, the sealing piece 13 is removed. At this time, the sponge wiping 10 can be taken out from the inside of the receiving groove 22 for separate cleaning or replacement of the sponge wiping 10.

[0034] A first fixing mechanism is provided between the movable seat 9 and the traction seat 8. The first fixing mechanism includes a frame 24, a guide groove 25, a guide block 26 and a blocking block 27. The blocking block 27 is fixedly disposed on the surface of the movable seat 9, the guide groove 25 is disposed on the surface of the traction seat 8, the guide block 26 is fixedly disposed on the inner wall of the frame 24, the guide block 26 is slidably disposed inside the guide groove 25, the frame 24 is slidably disposed on the surface of the drive shaft 2, and the bottom of the frame 24 abuts against the top of the blocking block 27.

[0035] Please see Figure 1 , 2 Since the torsion spring 12 keeps the movable seat 9 and the traction seat 8 at a 90° angle, the first fixing mechanism is needed to connect the movable seat 9 and the traction seat 8 when the movable seat 9 is stored to prevent the torsion spring 12 from hindering the storage of the movable seat 9. At this time, the drive shaft 2 can drive the blade 3 to rotate normally. In this embodiment, the connection between the movable seat 9 and the traction seat 8 is achieved by the frame 24. By pushing the frame 24, the frame 24 can be separated from the movable seat 9, thereby realizing the unfolding of the movable seat 9.

[0036] A second fixing mechanism is provided between the movable seat 9 and the connecting seat 7. The second fixing mechanism includes a metal top plate 28 and a magnetic piece 29. The magnetic piece 29 is bonded to the top of the traction seat 8. The metal top plate 28 is fixedly set on the top of the connecting seat 7 and perpendicular to the drive shaft 2. The magnetic piece 29 is attracted to the bottom of the metal top plate 28.

[0037] Please see Figure 3In order to prevent the traction seat 8 from slipping off naturally when the food sample is crushed by the blade 3, a second fixing mechanism is set between the traction seat 8 and the connecting seat 7 in this embodiment. The traction seat 8 is fixed by the magnetic piece 29 adsorbing onto the metal top plate 28 to prevent the traction seat 8 from slipping off naturally. When wiping the blade 3, you only need to push the traction seat 8 gently by hand to separate the magnetic piece 29 from the bottom of the metal top plate 28.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] In summary, the above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent variations and modifications made in accordance with the shape, structure, features and spirit described in the claims of the present utility model should be included within the scope of the claims of the present utility model.

Claims

1. A residue-proof food safety testing sample crusher, comprising a sample crusher body (1), wherein a motor is installed inside the sample crusher body (1), and a drive shaft (2) is keyed to the output end of the motor, characterized in that: A blade (3) is rotatably provided at the bottom end of the drive shaft (2), and a direction adjustment mechanism is provided between the blade (3) and the drive shaft (2). A wiping mechanism is provided on the surface of the drive shaft (2). The direction adjustment mechanism includes a rotating shaft (4), a connecting shaft (5), and an end cap (6). One end of the rotating shaft (4) is fixed to the surface of the blade (3). The rotating shaft (4) is rotatably disposed on the surface of the drive shaft (2), and one end of the rotating shaft (4) extends into the interior of the drive shaft (2). The end cap (6) is rotatably disposed on the bottom of the drive shaft (2) through a locking structure. The bottom end of the connecting shaft (5) is fixed to the center of the end cap (6). The top end of the connecting shaft (5) is rotatably disposed on the top of the inner wall of the drive shaft (2). The rotating shaft (4) and the connecting shaft (5) are connected through a transmission structure. The wiping mechanism includes a connecting seat (7), a traction seat (8), a movable seat (9), and a sponge (10). The connecting seat (7) is fixedly disposed on the surface of the rotating shaft (4). The traction seat (8) is vertically slidably disposed on the surface of the connecting seat (7) through a limiting structure. The two movable seats (9) are rotatably disposed on both sides of the bottom of the traction seat (8) through a pin (11) and a torsion spring (12). The sponge (10) is fixedly installed inside the movable seat (9) through a receiving structure. A sealing piece (13) is interference-fitted between the two movable seats (9).

2. The residue-preventing food safety testing sample crusher according to claim 1, characterized in that: The locking structure includes a hemispherical locking groove (14), a cavity (15), a spring (16), and a locking block (17). The cavity (15) is located on the side wall of the end cap (6), the hemispherical locking groove (14) is located on the inner wall of the rotating shaft (4), the locking block (17) is slidably located inside the cavity (15), and one end of the locking block (17) is engaged inside the hemispherical locking groove (14). The spring (16) is fixed between the locking block (17) and the cavity (15).

3. The residue-preventing food safety testing sample crusher according to claim 1, characterized in that: The transmission structure includes a first bevel gear (18) and a second bevel gear (19). The first bevel gear (18) is keyed to the surface of the rotating shaft (4), and the second bevel gear (19) is keyed to the surface of the connecting shaft (5). The first bevel gear (18) and the second bevel gear (19) mesh with each other.

4. The residue-preventing food safety testing sample crusher according to claim 1, characterized in that: The limiting structure includes a groove (20) and a limiting slider (21). The limiting slider (21) is fixedly disposed on the inner wall of the traction seat (8). The groove (20) is disposed on the side of the connecting seat (7). The limiting slider (21) is slidably disposed inside the groove (20).

5. A residue-preventing food safety testing sample crusher according to claim 1, characterized in that: The receiving structure includes a receiving groove (22) and a retaining edge (23). The receiving groove (22) is opened on the surface of the movable seat (9). The retaining edge (23) is fixedly set on the inner wall of the receiving groove (22) and is flush with the surface of the movable seat (9). The sponge wipe (10) is slidably set inside the receiving groove (22). The surface of the sponge wipe (10) is provided with a notch (30) that matches the retaining edge (23). The notch (30) abuts against the surface of the retaining edge (23). The two sides of the sealing piece (13) are respectively interference-fitted to the inner walls of the two receiving grooves (22).

6. A residue-preventing food safety testing sample crusher according to claim 1, characterized in that: A first fixing mechanism is provided between the movable seat (9) and the traction seat (8). The first fixing mechanism includes a frame (24), a guide groove (25), a guide block (26), and a blocking block (27). The blocking block (27) is fixedly disposed on the surface of the movable seat (9). The guide groove (25) is disposed on the surface of the traction seat (8). The guide block (26) is fixedly disposed on the inner wall of the frame (24). The guide block (26) is slidably disposed inside the guide groove (25). The frame (24) is slidably disposed on the surface of the drive shaft (2). The bottom of the frame (24) abuts against the top of the blocking block (27).

7. A residue-preventing food safety testing sample crusher according to claim 1, characterized in that: A second fixing mechanism is provided between the movable seat (9) and the connecting seat (7). The second fixing mechanism includes a metal top plate (28) and a magnetic piece (29). The magnetic piece (29) is bonded to the top of the traction seat (8). The metal top plate (28) is fixedly set on the top of the connecting seat (7) and perpendicular to the drive shaft (2). The magnetic piece (29) is adsorbed on the bottom of the metal top plate (28).

Images