Automatic peeling device for sweet potato

Abstract

The application discloses a sweet potato automatic peeling device and relates to the technical field of a sweet potato peeling device.The existing automatic peeling device drives a knife holder and a blade to do circular motion through hand shaking, but the sweet potato is fixed through a fixed fruit fork, the sweet potato has a small water content, and it is laborious to insert the fixed fruit fork for fixation, and the problem that only one end of a spindle-shaped or cylindrical sweet potato is fixedly connected and unstable is solved;the upper side of the bottom of the peeling device is fixedly installed with a supporting seat, one side of the upper side of the supporting seat is provided with a first supporting frame, the other side of the upper side of the supporting seat is provided with a second supporting frame, the inner part of the upper end of the first supporting frame is rotatably installed with an extension pipe through a bearing, the inner part of the upper end of the extension pipe is provided with a first clamping structure, the inner part of the upper end of the second supporting frame is rotatably installed with a threaded rod through a bearing, one side of the threaded rod is installed with a second clamping structure, and the front side of the second clamping structure is provided with a peeling mechanism.

Description

Technical Field

[0001] This invention relates to the field of sweet potato peeling devices, and in particular to an automatic sweet potato peeling device. Background Technology

[0002] Sweet potato is a perennial twining vine belonging to the genus Dioscorea in the family Dioscoreaceae. Its tubers branch extensively at the top, and their shape, size, and skin / flesh color vary depending on the variety, soil, and cultivation conditions. They are categorized as spindle-shaped, cylindrical, spherical, and tuberous, with skin colors including white, yellow, red, light red, and purplish-red; flesh colors can be white, yellow, light yellow, orange-red, or have a purplish tinge. A peeler is a tool used to peel the skin of food, conveniently and effectively removing the skin while saving time. It is suitable for peeling irregularly shaped potatoes, radishes, melons, and other fruits. Most peelers are hand-cranked, meaning they use manual cranking to peel fruit, making fruit peeling more convenient and faster.

[0003] Chinese Patent Publication No. CN2078999U discloses a fruit peeler, a household cutting tool. The blade holder and blades are fixed to a turntable via springs and shafts. The turntable, gearbox, and base are fixed to a base. The reduction mechanism, handle, and fruit fork shaft are fixed to the gearbox. The bevel gears on the turntable mesh with the bevel gears on the reduction mechanism. The base has steps and a rounded transition surface. Fruit is inserted into the fruit fork shaft. Turning the handle causes the fruit to rotate while simultaneously moving relative to the blade holder, peeling off the skin. It can be used with fruits and vegetables of different shapes and sizes, and the thickness of the peel can be controlled by adjusting the blades. The transmission mechanism is fully enclosed, making it convenient and safe to use, suitable for homes, hotels, restaurants, kindergartens, and other similar establishments.

[0004] The existing technical solutions mentioned above have the following drawbacks: The automatic peeling device drives the knife holder and blade to make circular motion by hand-cranking, but it is fixed to the sweet potato by a fixed fruit fork. However, the sweet potato has a low water content, and it is difficult to insert the fixed fruit fork to fix it. At the same time, spindle-shaped and cylindrical sweet potatoes are unstable when fixed and connected only at one end. Therefore, we have proposed an automatic sweet potato peeling device to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic sweet potato peeling device to solve the problems mentioned in the background art. Existing automatic peeling devices rely on manual cranking to drive the blade holder and blades in a circular motion. However, they are fixed to the sweet potato by a fixed fruit fork. Sweet potatoes have low water content, making it difficult to insert the fixed fruit fork for fixing. At the same time, spindle-shaped or cylindrical sweet potatoes are unstable when fixed only at one end.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic sweet potato peeling device, comprising a peeling device base, a protective cover installed on the outside of the peeling device base, a support base fixedly installed on the top of the peeling device base, a first support frame provided on one side of the support base, and a second support frame provided on the other side of the support base. A telescopic tube is rotatably installed inside the upper end of the first support frame via a bearing, and a first clamping structure is provided inside the upper end of the telescopic tube. A threaded rod is rotatably installed inside the upper end of the second support frame via a bearing, and a second clamping structure is installed on one side of the threaded rod. A peeling mechanism is provided on the front side of the second clamping structure. Both the first and second clamping structures include a first fixing plate, a second fixing plate, a pulling plate, a pull ring, a threaded rod groove, a connecting rod, a clamping plate, a pull rope, a clamping plate fixing seat, a first torsion spring, a clamping spike plate, and clamping spikes.

[0007] Preferably, a partition is installed at the upper end of the protective cover, and a protective plate groove is provided between the partition and the upper inner wall of the protective cover. A sliding block is slidably arranged inside the protective plate groove, and a limit block is provided at the lower end of one side of the sliding block. A limit block groove is opened at the upper end of the partition, and the limit block groove is slidably connected to the limit block. A protective plate is provided at the front end of the protective cover, and the upper end of the protective plate is rotatably connected to one end of the sliding block by a hinge.

[0008] Preferably, one end of the first clamping structure and the second clamping structure is provided with a second fixing plate and a pulling plate, and the second fixing plate is located on one side of the pulling plate. The side of the second fixing plate away from the pulling plate is provided with a first fixing plate. Four clamping plate fixing seats are arranged in a ring on one side of the first fixing plate. A clamping plate is rotatably connected to one side of the clamping plate fixing seat through a first rotating shaft. A first torsion spring is fitted on the outside of the first rotating shaft. One end of the first torsion spring is fixedly connected to the clamping plate fixing seat, and the other end of the first torsion spring is fixedly connected to the clamping plate. A clamping spike plate is provided inside the side of the clamping plate away from the first fixing plate. Multiple clamping spikes are rectangularly arranged on the clamping spike plate.

[0009] Preferably, the first fixing plate and the second fixing plate are fixedly connected by a connecting rod. The second fixing plate and the pulling plate are provided with threaded rod grooves. An electric telescopic cylinder is provided between the first fixing plate of the first clamping structure and one end of the telescopic tube. The two ends of the electric telescopic cylinder are fixedly connected to the first fixing plate of the first clamping structure and the telescopic tube, respectively. One end of the electric telescopic cylinder passes through the threaded rod groove. The first fixing plate of the second clamping structure is fixedly connected to one end of the threaded rod. One end of the threaded rod passes through the threaded rod groove.

[0010] Preferably, the second fixing plate is attached to the pulling plate, and four pull rings are fixedly arranged in a ring at one end of the pulling plate. A pull rope is provided between one end of the pull ring and one end of the clamping plate.

[0011] Preferably, a fixing block is installed above the first fixing plate of the first clamping structure, and a positioning rod is fixedly installed on one side of the fixing block. A locking mechanism is provided above the first fixing plate of the second clamping structure. The locking mechanism has a positioning rod groove inside, and one end of the positioning rod passes through the positioning rod groove. A pressing rod is threadedly connected to the upper end of the locking mechanism. A pressing rotating cap is fixedly installed above the pressing rod, and a pressing plate is fixedly installed below the pressing rod, with the lower end of the pressing plate abutting against the upper end face of the positioning rod.

[0012] Preferably, a drive motor is fixedly installed on one side of the second support frame, and a gear is externally fitted on the output end of the drive motor, and the gear is threadedly connected to the threaded rod.

[0013] Preferably, the lower end of the peeling mechanism is provided with a peeling mechanism base, and a peeling mechanism fixing seat is rotatably mounted on the upper part of the peeling mechanism base via a second rotating shaft. A second torsion spring is fitted on the outside of the second rotating shaft. One end of the second torsion spring is fixedly connected to the peeling mechanism base, and the other end of the second torsion spring is fixedly connected to the peeling mechanism fixing seat. A peeling blade is rotatably mounted on the side of the upper end of the peeling mechanism fixing seat near the second clamping structure, and the peeling blade has an arc-shaped structure.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. In this invention, during peeling, the drive motor is started, and the output end of the drive motor drives the gear to rotate. The meshing connection between the gear and the threaded rod drives the threaded rod to rotate and move in the direction of the drive motor, thereby driving the first clamping structure and the second clamping structure to move in the direction of the drive motor. The sweet potatoes clamped between the first clamping structure and the second clamping structure rotate synchronously. Due to the setting of the second torsion spring below, the peeling blade on the peeling mechanism rotates in the direction of the sweet potato and comes into contact with the surface of the sweet potato. When the peeling blade comes into contact with the sweet potato, it scrapes off the skin of the sweet potato. This solves the problem that existing automatic peeling devices rely on hand-cranking to drive the blade holder and blade to make circular motion. However, since sweet potatoes have spindle-shaped, cylindrical, spherical, and block-shaped structures, the peeling device that makes circular rotation is difficult to peel spindle-shaped and cylindrical sweet potatoes.

[0016] 2. When fixing the sweet potato according to the present invention, the sweet potato is clamped between the first clamping structure and the second clamping structure. First, the pull ring of the first clamping structure is pulled, and the pull ring drives the pull plate to move towards the first support frame. The pull ring pulls the clamping plate outward through the pull rope, placing one end of the sweet potato between the clamping spikes of the four clamping plates. The clamping spikes on the clamping spikes penetrate the interior of the sweet potato, thereby clamping one end of the sweet potato. Then, the pull ring of the second clamping structure is pulled, and the pull ring drives the pull plate to move towards the threaded rod. The pull ring pulls the clamping plate outward through the pull rope, placing the other end of the sweet potato between the four clamping plates. Between the clamping plates of each clamping plate, the clamping spikes on the clamping plates pierce into the interior of the sweet potato, thereby clamping both ends of the sweet potato. Since each of the four clamping plates is equipped with a first torsion spring at its pivot point, the clamping plates press the sweet potato in the direction of the sweet potato, satisfying the clamping and fixing of sweet potatoes of different sizes. This solves the problem of existing automatic peeling devices that use a hand crank to drive the knife holder and blade to make circular motion, but which are fixed to the sweet potato by a fixed fruit fork. However, the sweet potato has a low water content, and it is difficult to insert the fixed fruit fork to fix it. At the same time, spindle-shaped and cylindrical sweet potatoes are unstable when fixed and connected only at one end. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the second support frame in this invention;

[0019] Figure 3 This is a diagram showing the connection relationship between the positioning rod and the locking mechanism in this invention;

[0020] Figure 4 This is a diagram showing the connection relationship between the second support frame, the threaded rod, and the drive motor in this invention.

[0021] Figure 5 This is a diagram showing the connection relationship between the base and the protective plate of the peeling device in this invention;

[0022] Figure 6 This is a schematic diagram of the peeling mechanism in this invention.

[0023] In the diagram: 1. Protective cover; 2. Partition plate; 3. Protective plate groove; 4. Peeling device base; 5. Support base; 6. First support frame; 7. Telescopic tube; 8. Electric telescopic cylinder; 9. First clamping structure; 10. Second clamping structure; 11. Fixing block; 12. Positioning rod; 13. Locking mechanism; 14. Second support frame; 15. Threaded rod; 16. Drive motor; 17. Peeling mechanism; 18. First fixing plate; 19. Second fixing plate; 20. Pulling plate; 21. Pull ring; 22. 23. Threaded rod groove; 24. Connecting rod; 25. Clamping plate; 26. Pull rope; 27. Clamping plate fixing seat; 28. First torsion spring; 29. ​​Clamping barb plate; 30. Clamping barb; 31. Pressing plate; 32. Pressing rotating cap; 33. Positioning rod groove; 34. Limiting block groove; 35. Sliding block; 36. Limiting block; 37. Protective plate; 38. Scraping mechanism base; 39. Scraping mechanism fixing seat; 40. Scraping blade; 41. Second torsion spring; 42. Gear. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] Please see Figure 1-6 An embodiment of the present invention provides an automatic sweet potato peeling device, comprising a peeling device base 4, a protective cover 1 installed on the outside of the peeling device base 4, a support seat 5 fixedly installed on the top of the peeling device base 4, a first support frame 6 provided on one side of the support seat 5, and a second support frame 14 provided on the other side of the support seat 5. A telescopic tube 7 is rotatably installed inside the upper end of the first support frame 6 via a bearing, and a first clamping structure 9 is provided inside the upper end of the telescopic tube 7. A threaded rod 15 is rotatably installed inside the upper end of the second support frame 14 via a bearing, and a second clamping structure 10 is installed on one side of the threaded rod 15. A peeling mechanism 17 is provided on the front side of the second clamping structure 10. Both the first clamping structure 9 and the second clamping structure 10 include a first fixing plate 18, a second fixing plate 19, a pulling plate 20, a pull ring 21, a threaded rod groove 22, a connecting rod 23, a clamping plate 24, a pull rope 25, a clamping plate fixing seat 26, a first torsion spring 27, a clamping spike plate 28, and a clamping spike 29.

[0026] In use, the sweet potato is clamped between the first clamping structure 9 and the second clamping structure 10. First, pull the pull ring 21 of the first clamping structure 9. The pull ring 21 drives the pull plate 20 to move towards the first support frame 6. The pull ring 21 pulls the clamping plate 24 outward through the pull rope 25, placing one end of the sweet potato between the clamping spikes 28 of the four clamping plates 24. The clamping spikes 29 on the clamping spikes 28 penetrate the inside of the sweet potato, thereby clamping one end of the sweet potato. Then, pull the pull ring of the second clamping structure 10. 21. Pull ring 21 drives pull plate 20 to move towards threaded rod 15. Pull ring 21 pulls clamping plate 24 outward through pull rope 25, placing the other end of sweet potato between the clamping spikes 28 of the four clamping plates 24. The clamping spikes 29 on the clamping spikes 28 pierce the inside of the sweet potato, thereby clamping both ends of the sweet potato. Since the four clamping plates 24 are all equipped with first torsion springs 27 at the pivot, the clamping plates 24 press the sweet potato, satisfying the clamping and fixing of sweet potatoes of different sizes.

[0027] Please see Figure 1 and Figure 5 A partition 2 is installed on the upper end of the protective cover 1, and a protective plate groove 3 is provided between the partition 2 and the upper inner wall of the protective cover 1. A sliding block 35 is slidably arranged inside the protective plate groove 3. A limit block 36 is provided on the lower end of one side of the sliding block 35. A limit block groove 34 is opened on the upper end of the partition 2, and the limit block groove 34 is slidably connected to the limit block 36. A protective plate 37 is provided at the front end of the protective cover 1, and the upper end of the protective plate 37 is rotatably connected to one end of the sliding block 35 by a hinge.

[0028] Please see Figure 1-2The first clamping structure 9 and the second clamping structure 10 are provided with a second fixing plate 19 and a pulling plate 20 at one end, and the second fixing plate 19 is located on one side of the pulling plate 20. The side of the second fixing plate 19 away from the pulling plate 20 is provided with a first fixing plate 18. Four clamping plate fixing seats 26 are arranged in a ring on one side of the first fixing plate 18, and a clamping plate 24 is rotatably connected to one side of the clamping plate fixing seat 26 via a first rotating shaft. A first torsion spring 27 is fitted on the outside of the first rotating shaft. One end of the first torsion spring 27 is fixedly connected to the clamping plate fixing seat 26, and the other end of the first torsion spring 27 is fixedly connected to the clamping plate 24. A clamping spike plate 28 is provided inside the side of the clamping plate 24 away from the first fixing plate 18. Multiple clamping spikes 29 are rectangularly arranged on the clamping spike plate 28. Plate 18 and the second fixed plate 19 are fixedly connected by a connecting rod 23. The second fixed plate 19 and the pull plate 20 are provided with threaded rod grooves 22. An electric telescopic cylinder 8 is provided between the first fixed plate 18 of the first clamping structure 9 and one end of the telescopic tube 7. The two ends of the electric telescopic cylinder 8 are fixedly connected to the first fixed plate 18 and the telescopic tube 7 of the first clamping structure 9, respectively. One end of the electric telescopic cylinder 8 passes through the threaded rod groove 22. The first fixed plate 18 of the second clamping structure 10 is fixedly connected to one end of the threaded rod 15. One end of the threaded rod 15 passes through the threaded rod groove 22. The second fixed plate 19 is in contact with the pull plate 20. Four pull rings 21 are fixedly provided in a ring at one end of the pull plate 20. A pull rope 25 is provided between one end of the pull ring 21 and one end of the clamping plate 24.

[0029] Please see Figure 1 and Figure 3 A fixing block 11 is installed above the first fixing plate 18 of the first clamping structure 9. A positioning rod 12 is fixedly installed on one side of the fixing block 11. A locking mechanism 13 is provided above the first fixing plate 18 of the second clamping structure 10. A positioning rod groove 33 is opened inside the locking mechanism 13, and one end of the positioning rod 12 passes through the positioning rod groove 33. A pressing rod 31 is threadedly connected to the upper end of the locking mechanism 13. A pressing rotating cap 32 is fixedly installed above the pressing rod 31. A pressing plate 30 is fixedly installed below the pressing rod 31, and the lower end of the pressing plate 30 is in contact with the upper end face of the positioning rod 12.

[0030] Please see Figure 1 and Figure 4 A drive motor 16 is fixedly installed on one side of the second support frame 14. A gear 42 is fitted on the outside of the output end of the drive motor 16, and the gear 42 is threadedly connected to the threaded rod 15.

[0031] Please see Figure 1 and Figure 6The lower end of the peeling mechanism 17 is provided with a peeling mechanism base 38. The peeling mechanism base 38 is rotatably mounted on the upper part of the peeling mechanism base 38 via a second rotating shaft. A second torsion spring 41 is fitted on the outside of the second rotating shaft. One end of the second torsion spring 41 is fixedly connected to the peeling mechanism base 38, and the other end of the second torsion spring 41 is fixedly connected to the peeling mechanism base 39. A peeling blade 40 is rotatably mounted on the upper end of the peeling mechanism base 39 near the second clamping structure 10. The peeling blade 40 has an arc-shaped structure.

[0032] Working principle: In use, the sweet potato is clamped between the first clamping structure 9 and the second clamping structure 10. First, pull the pull ring 21 of the first clamping structure 9. The pull ring 21 drives the pull plate 20 to move towards the first support frame 6. The pull ring 21 pulls the clamping plate 24 outward through the pull rope 25, placing one end of the sweet potato between the clamping spikes 28 of the four clamping plates 24. The clamping spikes 29 on the clamping spikes 28 penetrate the inside of the sweet potato, thereby clamping one end of the sweet potato. Extend the electric telescopic cylinder 8 to bring the other end of the sweet potato closer to the second clamping structure 10. Pull the pull ring 21 of the second clamping structure 10. The pull ring 21 drives the pull plate 20 to move towards the first support frame 6. Move 20 towards the threaded rod 15. Pull ring 21 pulls clamping plate 24 outward through pull rope 25, placing the other end of sweet potato between the clamping spikes 28 of the four clamping plates 24. The clamping spikes 29 on the clamping spikes 28 pierce the inside of the sweet potato, thereby clamping both ends of the sweet potato. Since each of the four clamping plates 24 is equipped with a first torsion spring 27, the clamping plates 24 press the sweet potato, satisfying the clamping and fixing of sweet potatoes of different sizes. Rotate downward to press the rotating cap 32. When the first clamping structure 9 is displaced, it can drive the positioning rod 12 to slide in the positioning rod groove 33. Pressing the rotating cap 32 drives the pressing plate 3. The pressing rod 31 and the locking mechanism 13 rotate downwards spirally. The pressing rod 31 presses the upper surface of the positioning rod 12, thereby locking the distance between the first clamping structure 9 and the second clamping structure 10. The protective plate 37 is pulled outwards until it is completely removed from the protective plate groove 3. Then the protective plate 37 is rotated downwards. The sliding block 35, which is rotatably connected to one end of the protective plate 37, slides synchronously in the protective plate groove 3. The limiting block 36 at the lower end of the sliding block 35 slides in the limiting block groove 34. The limiting block groove 34 prevents the limiting block 36 from falling off. The protective plate 37 can be used to separate the sweet potato during the peeling operation. Inside the protective cover 1, during peeling, the drive motor 16 is started. The output end of the drive motor 16 drives the gear 42 to rotate. The meshing connection between the gear 42 and the threaded rod 15 drives the threaded rod 15 to rotate and move in the direction of the drive motor 16, thereby driving the first clamping structure 9 and the second clamping structure 10 to move in the direction of the drive motor 16. The sweet potatoes clamped between the first clamping structure 9 and the second clamping structure 10 rotate synchronously. Due to the setting of the second torsion spring 41 below, the peeling blade 40 on the peeling mechanism 17 rotates in the direction of the sweet potato and comes into contact with the surface of the sweet potato. When the peeling blade 40 comes into contact, it scrapes off the skin of the sweet potato.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic sweet potato peeling device, comprising a peeling device base (4), characterized in that: A protective cover (1) is installed on the outside of the peeling device base (4). A support base (5) is fixedly installed on the top of the peeling device base (4). A first support frame (6) is provided on one side of the support base (5), and a second support frame (14) is provided on the other side of the support base (5). A telescopic tube (7) is rotatably installed inside the upper end of the first support frame (6) through a bearing. A first clamping structure (9) is provided inside the upper end of the telescopic tube (7). A threaded rod (15) is rotatably installed inside the upper end of the second support frame (14) through a bearing. A second clamping structure (10) is installed on one side of the threaded rod (15). A peeling mechanism (17) is provided on the front side of the second clamping structure (10). The first clamping structure (9) and the second clamping structure (10) both include a first fixing plate (18), a second fixing plate (19), a pulling plate (20), a pull ring (21), a threaded rod groove (22), a connecting rod (23), a clamping plate (24), a pull rope (25), a clamping plate fixing seat (26), a first torsion spring (27), a clamping spike plate (28), and a clamping spike (29). One end of the first clamping structure (9) and the second clamping structure (10) is provided with a second fixing plate (19) and a pulling plate (20), and the second fixing plate (19) is located on one side of the pulling plate (20). The side of the second fixing plate (19) away from the pulling plate (20) is provided with a first fixing plate (18). 8) has four clamping plate fixing seats (26) arranged in a ring on one side, and a clamping plate (24) is rotatably connected to one side of the clamping plate fixing seat (26) through a first rotating shaft. A first torsion spring (27) is fitted on the outside of the first rotating shaft. One end of the first torsion spring (27) is fixedly connected to the clamping plate fixing seat (26), and the other end of the first torsion spring (27) is fixedly connected to the clamping plate (24). A clamping barb plate (28) is arranged inside the clamping plate (24) on the side away from the first fixing plate (18). Multiple clamping barbs (29) are rectangularly arranged on the clamping barb plate (28). The first fixing plate (18) and the second fixing plate (19) are fixedly connected by a connecting rod (23). The second fixing plate (19) and the pull The plate (20) has a threaded rod groove (22) inside. An electric telescopic cylinder (8) is provided between the first fixed plate (18) of the first clamping structure (9) and one end of the telescopic tube (7). The two ends of the electric telescopic cylinder (8) are fixedly connected to the first fixed plate (18) of the first clamping structure (9) and the telescopic tube (7) respectively. One end of the electric telescopic cylinder (8) passes through the threaded rod groove (22). The first fixed plate (18) of the second clamping structure (10) is fixedly connected to one end of the threaded rod (15). One end of the threaded rod (15) passes through the threaded rod groove (22). The second fixed plate (19) is in contact with the pulling plate (20). Four pull rings (21) are fixedly provided in a ring at one end of the pulling plate (20).A pull rope (25) is provided between one end of the pull ring (21) and one end of the clamp (24).

2. The automatic sweet potato peeling device according to claim 1, characterized in that: The upper end of the protective cover (1) is equipped with a partition (2), and a protective plate groove (3) is provided between the partition (2) and the upper inner wall of the protective cover (1). A sliding block (35) is slidably provided inside the protective plate groove (3). A limit block (36) is provided at the lower end of one side of the sliding block (35). A limit block groove (34) is opened at the upper end of the partition (2), and the limit block groove (34) is slidably connected to the limit block (36). A protective plate (37) is provided at the front end of the protective cover (1), and the upper end of the protective plate (37) is rotatably connected to one end of the sliding block (35) by a hinge.

3. The automatic sweet potato peeling device according to claim 1, characterized in that: A fixing block (11) is installed above the first fixing plate (18) of the first clamping structure (9). A positioning rod (12) is fixedly installed on one side of the fixing block (11). A locking mechanism (13) is provided above the first fixing plate (18) of the second clamping structure (10). A positioning rod groove (33) is opened inside the locking mechanism (13), and one end of the positioning rod (12) passes through the positioning rod groove (33). A pressing rod (31) is threadedly connected to the upper end of the locking mechanism (13). A pressing rotating cap (32) is fixedly installed above the pressing rod (31). A pressing plate (30) is fixedly installed below the pressing rod (31), and the lower end of the pressing plate (30) is in contact with the upper end face of the positioning rod (12).

4. The automatic sweet potato peeling device according to claim 1, characterized in that: A drive motor (16) is fixedly installed on one side of the second support frame (14). A gear (42) is fitted on the outside of the output end of the drive motor (16), and the gear (42) is threadedly connected to the threaded rod (15).

5. The automatic sweet potato peeling device according to claim 1, characterized in that: The lower end of the peeling mechanism (17) is provided with a peeling mechanism base (38). A peeling mechanism fixing seat (39) is rotatably installed on the upper part of the peeling mechanism base (38) via a second rotating shaft. A second torsion spring (41) is fitted on the outside of the second rotating shaft. One end of the second torsion spring (41) is fixedly connected to the peeling mechanism base (38), and the other end of the second torsion spring (41) is fixedly connected to the peeling mechanism fixing seat (39). A peeling blade (40) is rotatably provided on the side of the upper end of the peeling mechanism fixing seat (39) near the second clamping structure (10), and the peeling blade (40) has an arc-shaped structure.

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