Food sterilization device

Abstract

The invention relates to the technical field of food sterilization, in particular to a food sterilization device which comprises a horizontal high-temperature sterilization kettle, a base and three sterilization baskets, handles are fixedly mounted at the edges of the upper portions of the two side walls of the three sterilization baskets, and shells are fixedly mounted at the tops of the two ends of the base. Chains are rotatably mounted at the two ends of the interiors of the two shells, three uniformly-distributed supporting plates are jointly and fixedly mounted on the outer surfaces of every two adjacent chains from top to bottom, a driving box is fixedly mounted at one end of the top of the base, and a driving assembly is arranged in the driving box; eight evenly-distributed clamping grooves are formed in each handle, and eight evenly-distributed protruding strips are fixedly installed on the sides, close to the sterilization basket, of the two shells. The sterilization basket has the beneficial effects that when the sterilization baskets are taken down, the three sterilization baskets can sequentially fall to the top of the base, so that a worker can take down the sterilization baskets conveniently, and the danger coefficient during working is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of food sterilization, and specifically relates to a food sterilization device. Background Art

[0002] A horizontal high-temperature sterilization kettle is an industrial device for commercial sterilization of foods such as canned foods and soft-packaged foods. It uses high-temperature saturated steam to kill microorganisms to ensure that the products meet the commercial sterility standard. Canned foods are sterilized by being loaded into a sterilization basket and then pushed into the horizontal high-temperature sterilization kettle.

[0003] Usually, the number of sterilization baskets is three. For the production of small batches of glass canned foods, the canned foods are manually placed in the sterilization baskets, and then the loaded sterilization baskets are vertically stacked on the top of a trolley, and then the sterilization baskets are pushed into the horizontal high-temperature sterilization kettle for sterilization. When placing the canned foods into the sterilization baskets, the sterilization baskets can be first placed on the top of the trolley, and then the canned foods can be loaded into the sterilization baskets, as opposed to directly moving the sterilization baskets containing the canned foods and stacking them on the trolley.

[0004] The above method is relatively labor-saving and will not cause the canned foods inside to collide and be damaged due to shaking the sterilization basket during handling. However, when taking out the sterilized canned foods, the staff needs to first remove the topmost sterilization basket. Since the height of the topmost sterilization basket is relatively high, the staff needs to use other tools (such as a ladder) when removing it, and the staff needs to climb high, which has a certain safety risk and is not easy to operate. For this reason, we propose a food sterilization device. Summary of the Invention

[0005] The purpose of the present invention is to provide a food sterilization device to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A food sterilization device includes a horizontal high-temperature sterilization kettle, a base, and three sterilization baskets. At the upper edge of the two side walls of each of the three sterilization baskets, handles are fixedly installed. At the top of both ends of the base, outer shells are fixedly installed. At both ends inside each of the two outer shells, chains are rotatably installed. On the outer surface of each adjacent pair of the chains, three evenly distributed support plates are fixedly installed together from top to bottom. Each support plate is in an L shape, and the total length of each support plate is equal to the total length of each handle. At one end of the top of the base, a drive box is fixedly installed. A drive assembly is arranged inside the drive box. Eight evenly distributed card slots are opened inside each handle. A limiting mechanism and a swinging mechanism are arranged inside each support plate. Eight evenly distributed convex strips are fixedly installed on one side of each of the two outer shells close to the sterilization baskets.

[0007] Preferably, sliding rails are fixedly installed on both sides of the inner wall of the horizontal high-temperature sterilization kettle, and two pulleys are fixedly installed at both ends of the bottom of the base. The four pulleys are paired in twos and cooperate with the two sliding rails respectively.

[0008] Preferably, side baffles are fixedly installed at both ends of the top of the base. Seven evenly distributed strip-shaped grooves are formed inside the base. Each strip-shaped groove is located between the two side baffles, and a rotating rod is rotatably installed inside each strip-shaped groove.

[0009] Preferably, the driving assembly includes a driving motor. The driving motor is fixedly installed inside the driving box. Two first transmission shafts are rotatably connected inside the driving box. The output shaft of the driving motor is fixedly connected to one of the first transmission shafts. Transmission gears and first belt pulleys are fixedly connected to the outer parts of the two first transmission shafts. The two transmission gears mesh with each other. Two second transmission shafts are rotatably connected to both ends inside the driving box. Second belt pulleys are fixedly connected to the outer parts of the two second transmission shafts. The two first belt pulleys are connected by belts to the two second belt pulleys respectively. The two second transmission shafts are respectively connected to the bottoms of their corresponding chains.

[0010] Preferably, the limiting mechanism includes a mounting seat. The mounting seat is slidably installed inside the support plate. Guide rods are fixedly installed at both ends of the top of the mounting seat. An installation plate is slidably sleeved on the outer parts of the two guide rods together. Four evenly distributed trapezoidal blocks are fixedly installed on the top of the installation plate. The specifications and dimensions of each trapezoidal block are adapted to those of each card slot. Spring one is symmetrically fixedly installed between the installation plate and the mounting seat.

[0011] Preferably, a T-shaped limiting sliding groove is formed inside the support plate. A T-shaped limiting sliding block is fixedly installed at the bottom of the mounting seat. The T-shaped limiting sliding groove and the T-shaped limiting sliding block cooperate with each other.

[0012] Preferably, the swinging mechanism includes a flipping assembly and a resetting assembly. The flipping assembly includes a rotating shaft. The rotating shaft is rotatably installed inside the support plate. A first flipping plate is fixedly sleeved on the outer part of the rotating shaft. A torsion spring is fixedly connected between the first flipping plate and the inner wall of the support plate. The torsion spring is movably sleeved on the outer part of the rotating shaft. A second flipping plate is rotatably installed at one end of the first flipping plate. A limiting plate is fixedly connected to the side of the second flipping plate close to the first flipping plate. A groove is formed at the end of the first flipping plate far from the rotating shaft. The specifications and dimensions of the groove are adapted to those of the limiting plate.

[0013] Preferably, the reset assembly includes a cross bar and a circular groove, the circular groove is opened inside the support plate, the cross bar slides and inserts into the circular groove, a pressing plate is fixedly installed on the side of the cross bar close to the flip plate one, and the end of the cross bar away from the flip plate one is movably sleeved on the outside of an adjacent guide rod, and two springs two are fixedly installed between the side of the mounting seat away from the flip plate one and the inner wall of the support plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The staff only needs to put glass cans into the sterilization basket at the bottom. By using the drive assembly and the support plate, the three sterilization baskets can be lifted up from the top of the base in turn and sent into the horizontal high-temperature sterilizer in a stacked state for high-temperature sterilization. Moreover, when removing the sterilization baskets, the three sterilization baskets can fall to the top of the base in turn, which is convenient for the staff to remove the sterilization baskets and greatly reduces the risk factor during work.

[0015] When the base with the sterilization basket is pushed into the horizontal high-temperature sterilizer, the sterilization basket can be fixed in the horizontal direction through the setting limit structure to prevent the handle of the sterilization basket from moving on the top of the support plate, so that the support plate can lift the sterilization basket more evenly.

[0016] When the slot in the handle of the sterilization basket does not correspond to the trapezoidal block, the swing structure is provided so that the trapezoidal block will be displaced to a certain position during the rising process of the support plate, so that the trapezoidal block can be inserted into the slot to fix the sterilization basket. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a working state display diagram of the sterilization basket of the present invention; Figure 3 It is a schematic diagram of the bottom structure of the base of the present invention; Figure 4 It is a schematic diagram of the internal structure of the drive box of the present invention; Figure 5 A diagram showing a support of the present invention; Figure 6 For the present invention Figure 5 A partial enlarged view in FIG. Figure 7 It is a schematic diagram of the support plate structure of the present invention; Figure 8 It is a schematic diagram of the internal structure of the support plate of the present invention; Figure 9 For the present invention Figure 8 A partial enlarged view of B in FIG. Figure 10 For the present invention Figure 8 A partial enlarged view of C in FIG. Figure 11 Schematic structural diagram of the sterilization basket of the present invention; Figure 12 Cross-sectional view of the pallet of the present invention.

[0018] In the drawings, the list of components represented by each reference numeral is as follows: 1, horizontal high-temperature sterilization autoclave; 2, base; 3, sterilization basket; 4, slide rail; 5, pulley; 6, handle; 7, outer shell; 8, chain; 9, pallet; 10, drive box; 11, drive motor; 12, first transmission shaft; 13, transmission gear; 14, first pulley; 15, second transmission shaft; 16, second pulley; 17, strip-shaped groove; 18, rotating rod; 19, card slot; 20, mounting seat; 21, T-shaped limit chute; 22, T-shaped limit slider; 23, guide rod; 24, mounting plate; 25, trapezoidal block; 26, first spring; 27, rotating shaft; 28, first turning plate; 29, torsion spring; 30, limit plate; 31, groove; 32, cross bar; 33, circular groove; 34, pressing plate; 35, second spring; 36, convex strip; 37, second turning plate; 38, side baffle. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] The present invention provides a technical solution: as Figure 1 - Figure 12 shown, a food sterilization device includes a horizontal high-temperature sterilization autoclave 1, a base 2, and three sterilization baskets 3. Handles 6 are fixedly installed at the upper edges of the two side walls of each of the three sterilization baskets 3 (as Figure 11 shown). Outer shells 7 are fixedly installed at the tops of both ends of the base 2. Chains 8 are rotatably installed at both ends inside each of the two outer shells 7. Three uniformly distributed pallets 9 are fixedly installed together from top to bottom on the outer surfaces of every two adjacent chains 8. Each pallet 9 is arranged in an L shape, and the total length of each pallet 9 is equal to the total length of each handle 6. A drive box 10 is fixedly installed at one end of the top of the base 2. A drive assembly is arranged inside the drive box 10. Eight uniformly distributed card slots 19 are opened inside each handle 6. A limit mechanism and a swing mechanism are arranged inside each pallet 9. Eight uniformly distributed convex strips 36 are fixedly installed on one side of each of the two outer shells 7 close to the sterilization basket 3.

[0021] On both sides of the inner wall of the horizontal high-temperature sterilization kettle 1, slide rails 4 are fixedly installed, and at both ends of the bottom of the base 2, two pulleys 5 are fixedly installed. The four pulleys 5 are paired in twos and cooperate with the two slide rails 4 respectively.

[0022] At both ends of the top of the base 2, side baffles 38 are fixedly installed. Seven evenly distributed strip-shaped grooves 17 are formed inside the base 2. Each strip-shaped groove 17 is located between the two side baffles 38, and a rotating rod 18 is rotatably installed inside each strip-shaped groove 17.

[0023] The driving assembly includes a driving motor 11. The driving motor 11 is fixedly installed inside the driving box 10. Two first transmission shafts 12 are rotatably connected inside the driving box 10. The output shaft of the driving motor 11 is fixedly connected to one of the first transmission shafts 12. Transmission gears 13 and first belt pulleys 14 are fixedly connected to the outside of the two first transmission shafts 12 respectively. The two transmission gears 13 mesh with each other. Two second transmission shafts 15 are rotatably connected to both ends inside the driving box 10. Second belt pulleys 16 are fixedly connected to the outside of the two second transmission shafts 15 respectively. The two first belt pulleys 14 are connected by belts to the two second belt pulleys 16 respectively. The two second transmission shafts 15 are respectively connected to the bottom of their corresponding chains 8.

[0024] The limiting mechanism includes a mounting seat 20 (as Figure 9 shown). The mounting seat 20 is slidably installed inside the support plate 9. Guide rods 23 are fixedly installed at both ends of the top of the mounting seat 20. An installation plate 24 is slidably sleeved on the outside of the two guide rods 23 together. Four evenly distributed trapezoidal blocks 25 are fixedly installed on the top of the installation plate 24. Each trapezoidal block 25 is adapted to the specification size of each card slot 19. Spring one 26 is symmetrically fixedly installed between the installation plate 24 and the mounting seat 20.

[0025] A T-shaped limiting sliding groove 21 (as Figure 12 shown) is formed inside the support plate 9. A T-shaped limiting sliding block 22 is fixedly installed at the bottom of the mounting seat 20. The T-shaped limiting sliding groove 21 cooperates with the T-shaped limiting sliding block 22.

[0026] The swinging mechanism includes a flipping assembly and a resetting assembly. The flipping assembly includes a rotating shaft 27. The rotating shaft 27 is rotatably installed inside the support plate 9. A flipping plate one 28 is fixedly sleeved on the outside of the rotating shaft 27. A torsion spring 29 is fixedly connected between the flipping plate one 28 and the inner wall of the support plate 9. The torsion spring 29 is movably sleeved on the outside of the rotating shaft 27. One end of the flipping plate one 28 is rotatably installed with a flipping plate two 37. A limiting plate 30 is fixedly connected to the side of the flipping plate two 37 close to the flipping plate one 28. A groove 31 is formed at the end of the flipping plate one 28 far from the rotating shaft 27. The groove 31 is adapted to the specification size of the limiting plate 30.

[0027] The reset component includes a cross bar 32 and a circular groove 33. The circular groove 33 is formed inside the support plate 9. The cross bar 32 is slidably inserted into the circular groove 33. A pressing plate 34 is fixedly installed on one side of the cross bar 32 close to the first turning plate 28. One end of the cross bar 32 far from the first turning plate 28 is movably sleeved outside an adjacent guide rod 23. Two second springs 35 are fixedly installed between the side of the mounting seat 20 far from the first turning plate 28 and the inner wall of the support plate 9.

[0028] Working principle: When sterilizing glass cans, first place the base 2 on the top of the trolley, and then place a sterilization basket 3 on the surface of the base 2, with the sterilization basket 3 positioned between the two side baffles 38. Then the staff place the glass cans one by one inside the sterilization basket 3. After the sterilization basket 3 is full, slowly push the sterilization basket 3 towards one side of the drive box 10. An excessive speed will cause the sterilization basket 3 to collide with the drive box 10, resulting in damage to the glass cans inside the sterilization basket 3. Through the arranged rotating rod 18, the friction between the bottom of the sterilization basket 3 and the surface of the base 2 is reduced, thus facilitating the staff to push the sterilization basket 3 full of glass cans. After slowly pushing the sterilization basket 3 until it touches the drive box 10, start the drive motor 11 to drive the first transmission shaft 12 connected to its output shaft to rotate. Under the action of the two meshing transmission gears 13, the other transmission gear 13 drives another first transmission shaft 12 to rotate. The two first transmission shafts 12 drive the respective first pulleys 14 to rotate. The two first pulleys 14 drive the respective second pulleys 16 to rotate. Subsequently, the two second pulleys 16 drive the respective second transmission shafts 15 to rotate. The two second transmission shafts 15 drive the two chains 8 in their respective outer shells 7 to rotate. Every two adjacent chains 8 drive the respective support plates 9 to rise. The two support plates 9 at the front lift the handles 6 on both sides of the sterilization basket 3. With the drive of the drive motor 11, the two support plates 9 drive the sterilization basket 3 to rise. After stacking the three sterilization baskets 3, push the base 2, and the four pulleys 5 at its bottom, in pairs of two, respectively slide into the corresponding slide rails 4. The entire base 2 can then be pushed into the horizontal high-temperature sterilization kettle 1 for high-temperature sterilization of the glass cans.

[0029] The process of a sterilization basket 3 rising and falling is as follows: when the sterilization basket 3 is pushed between the two shells 7, the corresponding slots 19 of the two handles 6 fail to align with the corresponding trapezoidal blocks 25. At this time, the two handles 6 apply pressure to their corresponding trapezoidal blocks 25, and each trapezoidal block 25 is driven by the force to drive the mounting plate 24 connected thereto to move downward. The two mounting plates 24 slide downward along their corresponding two guide rods 23, and at the same time compress their corresponding springs 1 26. When the flip plates 2 37 in the two support plates 9 rise, they will touch their corresponding convex strips 36. The two flip plates 2 37 drive the limit plates 30 connected thereto to rotate. The two limit plates 30 will act on their corresponding flip plates 1 28 during the rotation process. The two flip plates 1 The two pressing plates 34 are forced to drive the corresponding cross bars 32 to slide in the corresponding circular grooves 33, and the two cross bars 32 push the connected mounting seats 20 to slide. The T-shaped limit sliders 22 at the bottom of the two mounting seats 20 slide in the corresponding T-shaped limit slots 21. At the same time, the two mounting seats 20 squeeze the two corresponding springs 25. When the two flip plates 23 are misaligned with the corresponding convex strips 36, the two mounting seats 20 drive the corresponding trapezoidal blocks 25 to reset under the action of the corresponding springs 23. As the two supporting plates 9 continue to rise, when the two flip plates 23 touch the corresponding convex strips 36 again, the two mounting seats 20 are The mounting seat 20 moves again until the two flip plates 2 37 pass through the eight corresponding convex strips 36, and the two mounting seats 20 achieve the effect of reciprocating movement. When each trapezoidal block 25 does not correspond to the corresponding slot 19, each trapezoidal block 25 will correspond to the corresponding slot 19 during the reciprocating movement, and will move upward under the action of the corresponding spring 1 26, and then insert into the corresponding slot 19 to limit the two handles 6. The swing mechanism ensures that each trapezoidal block 25 can be inserted into the corresponding slot 19 in different states, so as to still achieve the effect of horizontally limiting the sterilization basket 3. When the glass cans in the sterilization basket 3 are sterilized at high temperature, the two mounting seats 20 are driven by reversing the motor 11. When the two flip plates 2 37 touch their respective convex strips 36, the two flip plates 2 37 rotate in the opposite direction and drive their respective limiting plates 30 to rotate to the inside of the corresponding grooves 31. At this time, the two limiting plates 30 will not act on their respective flip plates 1 28, and the two flip plates 1 28 will not rotate, and will not act on their respective reset components, thereby reducing the wear of some parts. When the sterilization basket 3 falls to the surface of the base 2, with the operation of the drive motor 11, the two support plates 9 drive their respective corresponding four trapezoidal blocks 25 to disengage from the corresponding card slots 19 (that is, after the sterilization basket 3 falls to the surface of the base 2, the sterilization basket 3 can no longer fall, and the support plate 9 continues to rotate downward, driving the trapezoidal blocks 25 to fall a certain distance,The four trapezoidal blocks 25 are disengaged from the corresponding card slots 19 (inside), and then the staff can pull the sterilization basket 3 outward to process the glass cans inside. The processes of ascending and descending of the other two sterilization baskets 3 are also as described above.

[0030] It should be noted that through the cooperation of the driving component and the pallet 9, after the high-temperature sterilization work is completed, the problem that the staff needs to stack or take the uppermost sterilization basket 3 with the help of other tools (such as ladders) is solved. When the staff stacks or takes the sterilization basket 3 filled with glass cans above, the situation of falling from a height is avoided, and the effect that the staff only needs to operate on the lowermost sterilization basket 3 is achieved. There is no need to climb to a high place with the help of other tools (such as ladders), reducing the operation risk and being convenient for operation.

[0031] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A food sterilization device, comprising a horizontal high-temperature sterilization kettle (1), a base (2) and three sterilization baskets (3), characterized in that: On the upper edges of both side walls of the three sterilization baskets (3), handles (6) are fixedly installed. On the tops of both ends of the base (2), outer shells (7) are fixedly installed. At both ends inside the two outer shells (7), chains (8) are rotatably installed. On the outer surfaces of every two adjacent chains (8), three uniformly distributed support plates (9) are fixedly installed together from top to bottom. Each support plate (9) is arranged in an L shape, and the total length of each support plate (9) is equal to the total length of each handle (6). At one end of the top of the base (2), a drive box (10) is fixedly installed. A drive assembly is arranged inside the drive box (10). Inside each handle (6), eight uniformly distributed card slots (19) are formed. Inside each support plate (9), a limiting mechanism and a swinging mechanism are arranged. On one side of each of the two outer shells (7) close to the sterilization basket (3), eight uniformly distributed convex strips (36) are fixedly installed.

2. The food sterilization device according to claim 1, wherein: On both sides of the inner wall of the horizontal high-temperature sterilization kettle (1), slide rails (4) are fixedly installed. At both ends of the bottom of the base (2), two pulleys (5) are fixedly installed. The four pulleys (5) are paired in twos and are respectively matched with the two slide rails (4).

3. The food sterilization device according to claim 1, characterized in that: On both ends of the top of the base (2), side baffles (38) are fixedly installed. Seven uniformly distributed strip-shaped grooves (17) are formed inside the base (2). Each strip-shaped groove (17) is located between two side baffles (38). Inside each strip-shaped groove (17), a rotating rod (18) is rotatably installed.

4. A food sterilization device according to claim 1, characterized in that: The drive assembly includes a drive motor (11). The drive motor (11) is fixedly installed inside the drive box (10). Inside the drive box (10), two first transmission shafts (12) are rotatably connected. The output shaft of the drive motor (11) is fixedly connected to one of the first transmission shafts (12). On the outer parts of the two first transmission shafts (12), transmission gears (13) and first belt pulleys (14) are fixedly connected. The two transmission gears (13) are meshed with each other. At both ends inside the drive box (10), second transmission shafts (15) are rotatably connected. On the outer parts of the two second transmission shafts (15), second belt pulleys (16) are fixedly connected. The two first belt pulleys (14) are respectively connected by belts to the two second belt pulleys (16). The two second transmission shafts (15) are respectively connected to the bottoms of the corresponding chains (8).

5. A food sterilization device according to claim 1, characterized in that: The limiting mechanism includes a mounting seat (20). The mounting seat (20) is slidably installed inside the support plate (9). At both ends of the top of the mounting seat (20), guide rods (23) are fixedly installed. A mounting plate (24) is slidably sleeved on the outer parts of the two guide rods (23). On the top of the mounting plate (24), four uniformly distributed trapezoidal blocks (25) are fixedly installed. Each trapezoidal block (25) is respectively adapted to the specifications and dimensions of each card slot (19). Between the mounting plate (24) and the mounting seat (20), first springs (26) are symmetrically fixedly installed.

6. The food sterilization device according to claim 5, wherein: The interior of the pallet (9) is provided with a T-shaped limit sliding groove (21), and the bottom of the mounting seat (20) is fixedly installed with a T-shaped limit sliding block (22), and the T-shaped limit sliding groove (21) and the T-shaped limit sliding block (22) cooperate with each other.

7. A food sterilization device according to claim 5, characterized in that: The swing mechanism includes a flipping component and a reset component. The flipping component includes a rotating shaft (27). The rotating shaft (27) is rotatably installed inside the pallet (9). A flipping plate one (28) is fixedly sleeved outside the rotating shaft (27). A torsion spring (29) is fixedly connected between the flipping plate one (28) and the inner wall of the pallet (9). The torsion spring (29) is movably sleeved outside the rotating shaft (27). One end of the flipping plate one (28) is rotatably installed with a flipping plate two (37). A limiting plate (30) is fixedly connected to the side of the flipping plate two (37) close to the flipping plate one (28). A groove (31) is opened at the end of the flipping plate one (28) far from the rotating shaft (27), and the groove (31) is adapted to the limiting plate (30) in terms of specification and size.

8. The food sterilization device according to claim 7, wherein: The reset component includes a cross bar (32) and a circular groove (33). The circular groove (33) is opened inside the pallet (9). The cross bar (32) is slidably inserted into the circular groove (33). A pressing plate (34) is fixedly installed on the side of the cross bar (32) close to the flipping plate one (28). The end of the cross bar (32) far from the flipping plate one (28) is movably sleeved outside an adjacent guide rod (23). Two second springs (35) are fixedly installed between the side of the mounting seat (20) far from the flipping plate one (28) and the inner wall of the pallet (9).

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