A new type of turnover box and folding method

Abstract

The present invention belongs to the field of turnover boxes, and particularly relates to a new type of turnover box. It includes a chassis, a front side plate, a rear side plate, a left side plate, and a right side plate that are rotatably arranged on the chassis, as well as a left cover plate and a right cover plate arranged on the left side plate and the right side plate. The front side plate, the rear side plate, the left side plate, and the right side plate can all rotate towards the chassis direction to fold the turnover box, and plastic sealing plates are provided on the inner sides of the chassis, the front side plate, the rear side plate, the left side plate, the right side plate, the left cover plate, and the right cover plate. It can be folded by rotating the surrounding side plates towards the chassis direction, greatly saving the transportation space of the empty box. Moreover, a double-layer structure is adopted, and plastic sealing plates are added to the inner sides of the side plates. Utilizing the plasticity of the plastic plates themselves, they are mutually edge-fitted inside the box body to form a sealed inner cavity, thereby ensuring the tightness inside the box body.

Description

Technical Field

[0001] The present invention belongs to the field of turnover boxes, and particularly relates to a new type of turnover box.

Background Art

[0002] A turnover box is a commonly used packaging device in the freight field, and is widely used in the packaging and transportation of liquids, especially non-chemical raw materials, as well as granular and powdery objects. The turnover box usually has a sufficiently large accommodation space to hold the above-mentioned goods. In order to ensure that the box body will not be damaged during the handling and stacking process during transportation or cause damage to the internal materials, generally, the plates around the box body of the turnover box are made of iron or steel alloy materials to ensure its own strength. However, due to the problem of hard materials, the sealing performance of the box body itself is very poor. When storing some materials that need to be sealed, they need to be packed in a sealed bag and then placed in the box. This results in an additional process of packing or disassembling the sealed bag during use or unloading, increasing the transportation cost and making the process complicated. Moreover, the overall volume of the corresponding turnover box is also relatively large. When it is empty without holding goods, its storage and transportation are not very convenient.

Summary of the Invention

[0003] In order to solve the problem of poor sealing performance of the sealed box body of the foldable turnover box in the prior art, the present invention provides a new type of turnover box.

[0004] The present invention is achieved through the following technical solutions:

[0005] A new type of turnover box includes a chassis, a front side plate, a rear side plate, a left side plate, and a right side plate that are rotatably arranged on the chassis, and a left cover plate and a right cover plate arranged on the left side plate and the right side plate. The front side plate, the rear side plate, the left side plate, and the right side plate can all rotate towards the chassis to fold the turnover box, and plastic sealing plates are arranged on the inner sides of the chassis, the front side plate, the rear side plate, the left side plate, the right side plate, the left cover plate, and the right cover plate.

[0006] The turnover box folding method includes the following steps:

[0007] a. Unlock the upper cover locking parts on the front side plate and the rear side plate;

[0008] b. Unlock the quick locking structure between the front side plate, the rear side plate, the left side plate, and the right side plate;

[0009] c. Turn the left cover plate outwards towards the left side plate, turn the right cover plate outwards towards the right side plate, and use the center of gravity formed by the left side plate and the left cover plate to face outwards to make the left side plate stand upright, and use the center of gravity formed by the right side plate and the right cover plate to face outwards to make the right side plate stand upright;

[0010] d. Lift the front side plate upward until its lower end disengages from the embedding groove of the chassis, then rotate the front side plate towards the chassis until it flips onto the chassis. Lift the rear side plate upward until its lower end disengages from the embedding groove of the chassis, then rotate the rear side plate towards the chassis until it flips onto the front side plate;

[0011] e. Push the left side plate so that the left side plate together with the left cover plate rotates towards the chassis until it flips onto the rear side plate. Push the right side plate so that the right side plate together with the right cover plate rotates towards the chassis until it flips onto the left side plate, completing the folding of the turnover box.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. The present invention provides a new type of turnover box, which can be folded by rotating the surrounding side plates towards the chassis, greatly saving the transportation space of the empty box. Moreover, it adopts a double-layer structure, adding plastic sealing plates inside the side plates. Utilizing the plasticity of the plastic plates themselves, they are made to fit together at their edges inside the box to form a sealed inner cavity, thus ensuring the tightness inside the box. And the outside is still made of the side plate material of the box itself, ensuring its external strength. It can meet the requirements of transportation and storage while achieving internal sealing, eliminating the process of using packaging materials such as sealed bags and saving costs.

Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0015] Figure 1 is the structural diagram of the turnover box; Figure 2 is the structural diagram of the turnover box (with the upper cover open); Figure 3 is the exploded view of the structure of the turnover box; Figure 4 is the folding state diagram of the turnover box (front and rear side plates folded); Figure 5 is the structural diagram of the side plate; Figure 6 is the exploded view of the structure of the side plate; Figure 7 is the structural diagram of the upper cover locking part of the turnover box; Figure 8 is the structural diagram of the upper cover locking part of the turnover box (unlocked state); Figure 9 is the exploded view of the structure of the upper cover locking part; Figure 10 is the structural diagram of the folded turnover box; Figure 11 is the stacked diagram of multiple folded turnover boxes; Figure 12 is the structural diagram of the side plate locking part of the turnover box; Figure 13 is the structure of the side plate locking part of the turnover box Figure 2; Figure 14 Schematic diagram of the anti - detachment clamping structure of the front side plate of the turnover box; Figure 15 Schematic of the anti - detachment clamping structure of the front side plate of the turnover box Figure 2 ; Figure 16 Schematic diagram of the unloading structure on the turnover box; Figure 17 Schematic diagram of the unloading structure on the turnover box (open state); Figure 18 Schematic diagram of the unloading structure on the turnover box (deployed state); Figure 19 Structural diagram of the auxiliary guide plate; Figure 20 Schematic diagram of the linkage structure on the auxiliary guide plate.

Specific implementation manners

[0016] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0017] The present invention is realized through the following technical solutions:

[0018] As Figures 1 to 3 shown, a new type of turnover box includes a chassis 21, a front side plate 22, a rear side plate 23, a left side plate 24, a right side plate 25 rotatably provided on the chassis 21, and a left cover plate 26 and a right cover plate 27 provided on the left side plate 24 and the right side plate 25. The front side plate 22, the rear side plate 23, the left side plate 24, and the right side plate 25 can all rotate towards the chassis 21 to fold the turnover box. And plastic sealing plates 2 are provided on the inner sides of the chassis 21, the front side plate 22, the rear side plate 23, the left side plate 24, the right side plate 25, the left cover plate 26 and the right cover plate 27. The present invention provides a new type of turnover box, which can be folded by rotating its surrounding side plates towards the chassis, greatly saving the transportation space of the empty box. Moreover, it adopts a double - layer structure, adding plastic sealing plates on the inner side of the side plates. Utilizing the plasticity of the plastic plates, they can be mutually edge - fitted inside the box to form a sealed inner cavity, thus ensuring the tightness inside the box. And the outside is still the side - plate material of the box itself, ensuring its external strength. While meeting the requirements of transportation and storage, it can achieve internal sealing, eliminating the process of using sealing - bag packaging materials and saving costs.

[0019] As Figures 3 to 6As shown, in this solution, for the box body 9 composed of multiple side plates, a sealed inner cavity 901 surrounded by the plastic sealing plates 2 corresponding to each side plate 1 is formed inside. And the plastic sealing plates 2 are welded to the inner sides of the side plates 1. Moreover, the side plates 1 are made of ferroalloy materials. Since the box body has strength requirements and cannot directly use plastic sealing plates as the side plates of the box body, this solution adopts a double combination of iron plates and plastic plates to achieve high strength while protecting the internal sealing performance. For the connection between the iron plate and the plastic plate, this solution does not use additional connecting parts, but uses the welding method.

[0020] In addition, the plastic sealing plates 2 are connected to the inner sides of the side plates 1 through sealing connectors or riveting. This is another connection method.

[0021] Moreover, the side plates 1 are of a frame structure, which includes an outer frame 11 and connection and reinforcement bars 12 arranged inside the outer frame 11. Multiple connection positions 201 are provided on the plastic sealing plates 2 corresponding to the positions of the outer frame 11. These connection positions are the connection positions for rivets or welding positions, ensuring the connection strength and not being easily loosened.

[0022] As Figure 5 、 Figure 6 shown, in this solution, in order to ensure the internal sealing performance, a self-sealing structure is also provided. Sealing edge structures 202 protruding towards the adjacent side plates 1 are provided on the left and right sides of the plastic sealing plates 2. It adopts a double-layer structure. By adding plastic sealing plates inside the side plates and using the plasticity of the plastic plates themselves, and by providing sealing edge structures on the two side edges of the plastic sealing plates, it can make the inner edge of the box body fit better with the adjacent side plates, be able to seal the gaps between multiple side plates well, and form a sealed inner cavity, thus ensuring the internal sealing of the box body. Moreover, the outside is still the side plate material of the box body itself, and its external strength is also guaranteed, meeting the requirements of transportation and storage while being able to achieve internal sealing, eliminating the process of using packaging materials such as sealing bags and saving costs.

[0023] Furthermore, the sealing edge structures 202 are formed by bending the left and right side edges of the plastic sealing plates 2. Its structure is simple, integrally formed with the plastic sealing plates. Through the bent edges, it can be closer to the other side plate during connection, making the sealing effect of the gaps at the side plate edges better.

[0024] Still further, an intermediate sealing layer 203 connected to the side plates 1 is provided between the sealing edge structures 202 and the side plates 1. The intermediate sealing layer is used to fill the gaps between the bent sealing edge structures and the original side plates, and it can further enhance the sealing effect. Specifically, the intermediate sealing layer can achieve this effect by using sealing cotton.

[0025] In addition, the sealing edge structure 202 includes a bent section 2021 that bends towards the adjacent side plate 1 and a straight fitting section 2022 connected to the edge of the bent section 2021. Its structure remains straight after bending, which is beneficial for fitting well with the side of the adjacent side plate and maintaining a good sealing effect. In this solution, the width of the straight fitting section 2022 is greater than or equal to the thickness of the side plate 1 to ensure the sealing effect.

[0026] As Figures 7 to 9 shown, the turnover box in this solution is also provided with a cover locking structure. An upper cover locking member 3 is provided on the front side plate 22 for buckling on the edge of the left cover plate 26 or the right cover plate 27 from the front end, and the upper cover locking member 3 is rotatably connected to the front side plate 22. By rotating the upper cover locking member 3, the upper cover locking member 3 can be disengaged from the clamping connection with the left cover plate 26 or the right cover plate 27. Sealing edge structures are provided on both side edges of the plastic sealing plate, making it fit better with the adjacent side plates at the inner edge of the box body, capable of sealing the gaps between multiple side plates, enclosing a sealed inner cavity, thus ensuring the internal sealing of the box body. Moreover, the outside is still the side plate material of the box body itself, and its external strength is also ensured, meeting the requirements of transportation and storage while being able to achieve internal sealing, eliminating the process of using sealing bag packaging materials and saving costs.

[0027] Furthermore, the upper cover locking member 3 is also provided on the rear side plate 23, that is, the upper cover is locked from both sides. Moreover, 2 pairs of the upper cover locking members 3 are provided on both the front side plate 22 and the rear side plate 23.

[0028] Still further, the upper cover locking member 3 includes a card seat 31 provided on the front side plate 22, a movable rotating rod 32 passing through the card seat 31, and a buckle 33 connected to the end of the movable rotating rod 32. The movable rotating rod 32 can move horizontally and rotate relative to the card seat 31, and an elastic reset member is also provided between the movable rotating rod 32 and the card seat 31. The movable rotating rod 32 can move horizontally and rotate relative to the card seat, and the horizontal movement ensures that the movable rotating rod can drive the buckle to move horizontally, thereby ensuring that the buckle can lock the upper cover.

[0029] In addition, a limit baffle 311 for restricting the outward turning of the buckle 33 relative to the front side plate 22 is provided on the card seat 31, and the movable rotating rod 32 can drive the buckle 33 to move horizontally relative to the card seat 31 to disengage the buckle 33 from the limit baffle 311. The limit baffle 311 can limit the movable rotating rod 32 in the locked state, making it not easy to loosen, and also preventing unlocking caused by accidental touch during transportation or handling. The simple structure makes the structural locking more stable.

[0030] Specifically, the buckle 33 includes a connecting portion connected to the movable rotating rod 32, a buckle portion 331 connected to the connecting portion and bent outward to form a concave shape, and an upper blocking portion 332 connected to the upper end of the buckle portion 331 and parallel to the right cover plate 27. This makes the buckle form a shape with a notch, and it is snapped into the front side plate and the upper cover plate through the notch to form a clamping lock.

[0031] Moreover, a through hole is provided on the buckle portion 331, and a connection hole is also provided on the left cover plate 26 opposite the through hole. To further ensure the locking effect, in applications with relatively high requirements for sealing the box, this structure can also add a connecting piece through this connection hole, so that the buckle is further locked and connected to the upper cover. When disassembling, the connecting piece needs to be removed first, and then the buckle is disengaged. The connecting piece can be a bolt, a limit pin, etc.

[0032] Furthermore, an anti - buckling edge 23a extending to the edge of the left cover plate 26 is provided at one end of the right cover plate 27 opposite to the left cover plate 26. In this way, when the upper cover plates on both sides are closed, the right cover plate is pressed on the left cover plate, making it difficult to open the left cover plate.

[0033] In addition, an armrest ring 23a1 is provided on the anti - buckling edge 23a. It is convenient for the operator to open or close the cover plate.

[0034] As Figure 10 、 Figure 11 shown, the turnover box of this solution is also provided with a folding and stacking structure. Fixed connecting frames 91 are provided on both the left and right sides of the chassis 21. The left side plate 24 and the right side plate 25 are respectively hinged on the connecting frames 91 on both sides. After the turnover box is folded, the front side plate 22, the rear side plate 23, the left side plate 24, and the right side plate 25 are all below the upper end surface of the connecting frame 91. The upper end surface of the connecting frame 91 is a horizontal stacking surface 901, and the lower end surface of the connecting frame 91 is a support foot 902 extending to the lower end surface of the chassis 21. And this support foot 902 can cooperate with the stacking surface 901 on another turnover box with the same structure after folding to horizontally stack two turnover boxes. It adds a connecting frame between the chassis and the left and right side plates. By using the structure that each side plate after folding is lower than the upper end surface of the connecting frame, it is equivalent to forming a placement plane by the upper stacking surfaces of the connecting frames on both sides, and cooperating with the lower support feet of the connecting frames on another turnover box to form a horizontal stacking placement. This can make the folded turnover boxes be placed neatly. Moreover, the connecting frames on both sides play a role in protecting each folded side plate, effectively preventing the upper turnover box from pressing on the side plate and causing damage. In addition, it is also convenient for subsequent handling of the stacked turnover boxes.

[0035] Furthermore, on the upper end surface of the connecting frame 91, on the outer side, there is also a baffle 911 extending upward. This baffle 911 effectively restricts the turnover boxes stacked above from moving from both sides, and is used to support the left and right side plates when the left and right side plates are unfolded, preventing them from turning outward. The simple structure maintains the stability of the box body and makes the stacking effect better.

[0036] Furthermore, between the two ends of the baffle 911 on the right side plate 25 and the front and rear ends of the right side plate 25, there are clearance notches 912 left. The setting of the clearance notches 912 facilitates the placement of the support feet of the turnover box above during stacking. Specifically, the connecting frame 91 is in a frame shape, including an upper support bar 92 and side columns 93 connected to both sides of the upper support bar 92. The support feet 902 are connected to the bottoms of the side columns 93. The support feet 902 of the turnover box above are stacked on the support bars of the turnover box below to form a matching stack.

[0037] In addition, between the two side columns 93, between the upper support bar 92 and the support feet 902, inside the connecting frame 91, there is also a reinforcing connecting bar. This is beneficial to strengthening the stable structure of the connecting frame 91.

[0038] Moreover, the right end face of the support foot 902 is inwardly recessed so that its right end face is located on the left side of the right end face of the side column 93. Since there is also an upper baffle 911 on the outer end face of the stacking surface 901 and the end face of the upper baffle 911 is flush with the end face of the side column 93, the inward recess of the support foot 902 is equivalent to making room for the upper baffle 911, enabling the turnover box above to be stacked on the stacking surface 901 inside the upper baffle 911.

[0039] Moreover, the width of the side column 93 is less than or equal to the width of the clearance notch 912. In this way, the side column 93 can be unobstructed by the upper baffle 911 during stacking. Also, the side column 93 and the end of the upper baffle 911 form a limit, which also restricts the front and back movement of the turnover box above, while the upper baffles 911 on both sides restrict the left and right movement of the turnover box above.

[0040] Such as Figure 12 、 13As shown, in this scheme, a quick locking structure is also provided between the side panels, and the side panels 1 are provided with a locking strip 41 that can extend into the adjacent side panels 1, and when the locking strip 41 is rotated, the inner side surface of the other side panel 1 can be pressed against the end surface of the side panel for locking, or when the locking strip 41 is rotated to be consistent with the locking hole 42 of the other side panel 1, the locking strip 41 can be separated from the other side panel 1. It adopts the structure of an inserted locking strip, through which the locking strip on one side panel is inserted into the inside of the other side panel, and when rotating and locking, the structure of the locking strip is used to press the other side panel to the end of the side panel with the locking strip, so as to maintain a good sealing connection, and secondly, it is easy to operate, and locking or loosening only needs to rotate the locking strip, which greatly improves the operating efficiency and is easy to use. Moreover, when the locking strip is used to lock, the inner side surface of the other side panel can be pressed against the end surface of the side panel with the locking strip, and the sealing edge structure with the protrusion is matched, so that the connection gap between the side panels can be well sealed, further ensuring the sealing performance of the internal space.

[0041] Furthermore, a lock head 43 is provided at the front end of the lock bar 41, and the lock head 43 and the lock hole 42 are both in the shape of a long strip or an ellipse. In this way, after the lock head 43 is rotated, it can be offset and opposite to the lock hole to form a lock.

[0042] Moreover, the side surface of the lock head 43 opposite to the lock bar 41 is an inclined surface or an arc surface that gradually extends from the outside to the inside toward the lock bar. When the lock head rotates, the inner inclined surface or arc surface gradually forms a force to press the inner wall of the side plate during the rotation of the lock head, and finally presses the side plate against the side plate connected to the lock head, forming self-locking. It is equivalent to that at the beginning of the rotation, the inner wall of the side plate contacts the outer side of the arc surface, and during the gradual rotation, the arc surface gradually becomes thicker, thereby pressing the inner wall against the side plate.

[0043] Furthermore, the left and right sides of the plastic sealing plate 2 are provided with sealing edge structures 202 protruding toward the adjacent side plates 1, and the sealing edge structures 202 are provided with through holes opposite to the locking holes 42. When the locking strip is used to lock, the inner side surface of the other side plate can be pressed against the end surface of the side plate with the locking strip, and the protruding sealing edge structure can be used to make the connection gap between the side plates be well sealed, further ensuring the sealing performance of the internal space.

[0044] Moreover, the quick locking structure also includes a lock seat 401 connected to the side plate 1, and the lock bar 41 is inserted into the lock seat 401 and can move left and right and rotate relative to the lock seat 401. In addition, a rotating handle 411 is provided on one side of the lock bar 41 for easy operation, and the locking and unlocking operations are simple.

[0045] Furthermore, the lock seat 401 is also provided with a self-pressing seat 4011 for the rotating handle 411 to lock and snap in. The self-pressing seat 4011 is provided with a notch for the handle 411 to snap in, and opposite elastic blocks are provided on both sides of the notch, so that the handle is not easy to be separated after being snapped in, which can prevent loosening.

[0046] like Figure 2 , 4 As shown, in this solution, the turnover box is also provided with a structure of an anti-dumping side plate, and the left cover plate 26 can be turned outward relative to the left side plate 24 and make the center of gravity formed by the left side plate 24 and the left cover plate 26 deviate outward from the plane of the hinge point between the left side plate 24 and the bottom frame 21. It adopts a special structure, when the left cover plate is turned outward relative to the left side plate, that is, when the box body is opened during folding, the center of gravity formed by the left cover plate and the left side plate is not on the same vertical plane as the hinge point between the left side plate and the bottom frame, but is located outside the vertical plane, so that the left side plate has a tendency to turn outward relative to the bottom frame, so that the left side plate is kept in an upright state, not easy to dump, and effectively prevents automatic dumping during the folding of the front and rear side plates. And when it needs to be folded, it only needs to be gently pushed on the outside, which is practical and convenient.

[0047] Specifically, the left side panel 24 is hinged on the left side connecting frame 91, and the left side panel 24 is hinged to the connecting frame 91 through hinge pieces 241 extending downward on both sides. Moreover, the lower end of the hinge piece 241 opposite to the connecting frame 91 protrudes to the right, so that the lower end is wider than the upper end, and the hinged part of the hinge piece 241 and the connecting frame 91 is located on the right side of the center line of the hinge piece 241. In this way, the hinge point of the left side panel can deviate outward, thereby forming the above-mentioned anti-dumping effect after the upper cover is opened.

[0048] In addition, the left side panel 24 is connected to the inner side of the upper end of the hinge piece 241 and is located at the center line of the hinge piece 241 or to the left of the center line of the hinge piece 241. By utilizing the principle of center of gravity offset, when normally opened, the left side panel 24 is equivalent to maintaining a tendency to tilt outward, so that it will not easily turn inward under its own gravity, and it is convenient to keep it upright during the folding process. With the upper sidewall mentioned above as a support, the upright unfolding state of the left side panel or the right side panel is ensured.

[0049] Furthermore, a hinge 2601 is provided between the lower end of the left cover plate 26 and the left side plate 24. The left side plate 24 is formed by an outer frame composed of a plurality of cross bars and a plastic sealing plate 2 connected to the inner side of the outer frame. One end of the hinge 2601 is connected to the lower end of the upper cross bar in the outer frame, and the other end is connected to the lower end of the left cover plate 26. One side of the hinge is connected to the lower end of the upper cross bar, so that when the left cover plate is turned outward, a misalignment difference can be formed to keep the left cover plate from forming a vertical downward posture, because the upper end and the lower end of the hinge cannot be in a coplanar vertical position. Thereby ensuring that the center of gravity can be moved outward after the left cover plate is turned outward.

[0050] Specifically, the hinge member 2601 includes a first hinge seat 26011 provided on the outer frame of the left side plate, a second hinge seat 26012 provided at the lower end of the left cover plate 26, and a movable member 26013 provided between the first hinge seat 26011 and the second hinge seat 26012. It is equivalent to two hinge rotation points, which can make the left cover plate rotate more flexibly.

[0051] Moreover, a scratch-proof gasket 262 is provided at the outer side of the left cover plate 26 near the lower end. In this way, when the left cover plate is turned outwards, at the position where its outer side collides with the outer side of the left side plate, the scratch-proof gasket 262 is beneficial to protecting the outer side of the left side plate from being scratched.

[0052] As Figure 14 、 15 shown, in this solution, the front and rear side plates of the turnover box are also provided with an anti-disengagement structure. On both sides of the front side plate 22, there are convex cards 221 extending outwards to both sides. On the connecting frame 91, there is a vertical groove 222 for the convex cards 221 to extend into. And on one side of the vertical groove 222, there is a disengagement opening 223 for the convex cards 221 to slide out. After the convex cards 221 leave the vertical groove 222 from the disengagement opening 221, the front side plate 22 can be detached from the connecting frame 91. It uses the cooperation of the vertical groove and the convex cards on both sides of the front side plate to limit the convex cards to only move up and down or rotate, that is, the front side plate can only rotate and fold relative to the bottom frame or move up and down relative to the bottom frame. When moving to the disengagement opening, just move the convex cards out of the disengagement opening, and the front side plate can be removed from the bottom frame. This structure can, on the one hand, limit the front side plate from being easily disengaged, on the other hand, does not hinder the rotation of the front side plate relative to the bottom frame, and is easy to disassemble and install, facilitating later replacement and maintenance.

[0053] Furthermore, an embedding groove 2101 for the lower end of the front side plate 22 to be embedded is provided on the upper end surface of the bottom frame 21. Moreover, the disengagement opening 223 is close to the upper end of the vertical groove 222. Cooperating with the embedding groove on the bottom frame, it enables the front side plate to remain upright in the unfolded state. When folding is required, just gently lift the front side plate, and it can be disengaged from the embedding groove and then rotate relative to the bottom frame. And the position of the disengagement opening is relatively high, ensuring that it is not easily disengaged from the disengagement opening when gently lifted.

[0054] In addition, a guiding structure inclined from the outside to the inside is provided at the disengagement opening 223. In this way, when disassembling or installing, the inclined guiding structure enables the convex cards to smoothly pass through the disengagement opening, facilitating the operation.

[0055] As Figures 16 to 20As shown, in this solution, the turnover box also has a side unloading structure. A discharge opening 61 is provided on the side plate 1 near the chassis 21. A discharge door 62 that can rotate and open relative to the side plate 1 is provided on the discharge opening 61. An auxiliary guide plate 63 that can rotate towards the ground direction is also provided on the discharge opening 61 after the discharge door is opened. An auxiliary guide plate is added to the original discharge opening, so that a ramp extending from the discharge opening to the ground is built through the auxiliary guide plate during unloading. In this way, the material can be unloaded along the auxiliary guide plate during unloading, overcoming the damage caused by the height difference between the discharge opening and the ground. Moreover, the structure is simple and easy to use.

[0056] Further, the lower end of the auxiliary guide plate 63 is hinged to the lower end of the discharge opening 63. It can rotate and extend along the hinge after the discharge door is opened.

[0057] Furthermore, an extension plate 64 that can extend or contract relative to the auxiliary guide plate 63 is also provided on the auxiliary guide plate 63. The auxiliary guide plate also has extensibility. By unfolding, the distance of the auxiliary guide plate can be extended, enabling it to adapt to different height differences.

[0058] In addition, the extension plate 64 is provided at the bottom of the auxiliary guide plate 63 and can move relative to the auxiliary guide plate 63. A guide member for restricting the movement range of the extension plate 64 is provided at the bottom of the auxiliary guide plate 63. Its simple structure can achieve extension and retraction, which is convenient to use.

[0059] Moreover, a support edge 641 that forms an obtuse angle with the extension plate 64 is also provided at the end of the extension plate 64. The support edge can be kept horizontal with the ground, that is, it can keep the extension plate 64 from moving during unloading and maintain stability.

[0060] Further, limit edges 631 are also provided on both sides of the auxiliary guide plate 63. To prevent the material from rolling down from both sides during unloading.

[0061] In this solution, in order to improve the opening efficiency of the discharge door and the auxiliary guide plate, a linkage mechanism is also provided. A linkage mechanism that can drive the auxiliary guide plate 63 to rotate when the discharge door 62 rotates is also provided between the discharge door 62 and the auxiliary guide plate 63. When the discharge door is opened, the auxiliary guide plate can be automatically opened, and when the discharge door is closed, the auxiliary guide plate can be automatically driven to retract. The simple structure realizes high automation, simplifies manual operation, and improves efficiency.

[0062] Specifically, the linkage mechanism includes a first rotating shaft 71 provided on the discharge door 62 and rotating with the discharge door 62, a second rotating shaft 72 provided on the auxiliary guide plate 63, a first transmission gear 711 provided on the first rotating shaft 71, a second transmission gear 73 provided on the side plate 1, and a transmission chain provided on the first transmission gear 711 and the second transmission gear 73, and a reverse transmission gear 721 matched with the outer side of the transmission chain is provided on the second rotating shaft 72. In this way, when the transmission gear drives the transmission chain to rotate, the reverse transmission gear 721 located on the outer side of the transmission chain is also driven to rotate, so that the first transmission gear and the reverse transmission gear 721 have opposite directions of rotation, which can make the first rotating shaft and the second rotating shaft have opposite directions of rotation. Since the rotation angle of the first rotating shaft and the second rotating shaft does not need to be too large, less than half a circle, there is no need to worry that the reverse transmission gear matched with the transmission chain on the outer side will loosen during the transmission process.

[0063] The present scheme also provides a turnover box folding method, comprising the following steps: a. unlocking the upper cover locking parts on the front side panel and the rear side panel; b. unlocking the quick locking structure between the front side panel, the rear side panel, the left side panel and the right side panel; c. turning the left cover panel outward toward the left side panel and the right cover panel outward toward the right side panel, and using the center of gravity formed by the left side panel and the left cover panel to face outward to make the left side panel stand upright, and using the center of gravity formed by the right side panel and the right cover panel to face outward to make the right side panel stand upright; d. lifting the front side panel upward so that its lower end is separated from the embedding groove of the bottom frame, rotating the front side panel toward the bottom frame until it is flipped onto the bottom frame, lifting the rear side panel upward so that its lower end is separated from the embedding groove of the bottom frame, and rotating the rear side panel toward the bottom frame until it is flipped onto the front side panel; e. pushing the left side panel so that the left side panel and the left cover panel are rotated toward the bottom frame together until they are flipped onto the rear side panel, and pushing the right side panel so that the right side panel and the right cover panel are rotated toward the bottom frame together until they are flipped onto the left side panel, thereby completing the folding of the turnover box. This method mainly keeps the left and right side panels upright after the left and right cover panels on the top are flipped open, so that it is convenient to fold the front and rear side panels first, and then fold the left and right sides, so that the folding can be done in sequence, saving time and effort, and the effect is good.

[0064] The present invention provides a new type of turnover box, which can be folded by rotating the surrounding side panels toward the bottom frame, greatly saving the transportation space of the empty box. In addition, a double-layer structure is adopted, and a plastic sealing plate is added to the inner side of the side panel. The plasticity of the plastic plate is utilized to make the edges of the plastic plate fit each other in the box body to form a sealed inner cavity, thereby ensuring the sealing of the inside of the box body, and the outside is still the side panel material of the box body itself, and its external strength is also guaranteed, meeting the needs of transportation and storage while achieving internal sealing, eliminating the process of packaging materials through sealing bags, and saving costs.

[0065] As described above, one or more embodiments are provided in combination with specific contents, and it is not considered that the specific implementation of the present invention is limited only to these descriptions. Any approximation, similarity to the method, structure, etc. of the present invention, or several technical deductions or substitutions made under the premise of the concept of the present invention should be regarded as the protection scope of the present invention.

Claims

1. A new type of turnover box, characterized in that, It includes a chassis (21), a front side plate (22), a rear side plate (23), a left side plate (24), and a right side plate (25) that are rotatably arranged on the chassis (21), as well as a left cover plate (26) and a right cover plate (27) arranged on the left side plate (24) and the right side plate (25). The front side plate (22), the rear side plate (23), the left side plate (24), and the right side plate (25) can all rotate towards the chassis (21) direction to fold the turnover box, and plastic sealing plates (2) are provided on the inner sides of the chassis (21), the front side plate (22), the rear side plate (23), the left side plate (24), the right side plate (25), the left cover plate (26), and the right cover plate (27). Sealing edge structures (202) that bulge towards the adjacent side plates are provided on the left and right sides of the plastic sealing plate (2). The sealing edge structures (202) include a bending section (2021) that bends towards the adjacent side plate (1) and a straight fitting section (2022) connected to the edge of the bending section (2021). The width of the straight fitting section (2022) is greater than or equal to the thickness of the side plate (1). An upper cover locking part (3) for buckling on the edge of the left side plate (24) or the right side plate (25) from the front end is provided on the front side plate (22), and the upper cover locking part (3) is rotatably connected to the front side plate (22). By rotating the upper cover locking part (3), the upper cover locking part (3) can be disengaged from the clamping connection with the left side plate (24) or the right side plate (25).

2. The novel turnover box according to claim 1, characterized in that, Fixed connection frames (91) are provided on the left and right sides of the chassis (21). The left side plate (24) and the right side plate (25) are respectively hinged to the connection frames (91) on both sides. After the turnover box is folded, the front side plate (22), the rear side plate (23), the left side plate (24), and the right side plate (25) are all located below the upper end surface of the connection frame (91). The upper end surface of the connection frame (91) is a horizontal stacking surface (901), and the lower end surface of the connection frame (91) is a support foot (902) extending to the lower end surface of the chassis (21). The support foot (902) can cooperate with the stacking surface (901) on another turnover box with the same structure after folding to horizontally stack two turnover boxes.

3. A new turnover box according to claim 1, characterized in that, A locking bar (41) that can extend into the adjacent left side plate (24) is provided on the front side plate (22). When the locking bar (41) is rotated, the inner side surface of the left side plate (24) can be pressed against the end surface of the front side plate (22) to lock, or when the locking bar (41) is rotated to be aligned with the lock hole (42) of the left side plate (24), the locking bar (41) can be disengaged from the left side plate (24).

4. A novel turnover box according to claim 2, characterized in that, Clamping protrusions (221) that extend outward to both sides are provided on both sides of the front side plate (22). Vertical grooves (222) for the clamping protrusions (221) to extend into are provided on the connection frame (91). A disengagement opening (223) for the clamping protrusions (221) to slide out is provided on one side of the vertical groove (222). After the clamping protrusions (221) leave the vertical groove (222) from the disengagement opening (223), the front side plate (22) can be disassembled from the connection frame (91).

5. A new turnover box according to claim 1, characterized in that, A discharge opening (61) is provided on the rear side plate (23) near the chassis (21), and the discharge opening (61) is provided with a discharge door (62) that can be rotated and opened relative to the side plate (1). The discharge opening (61) is also provided with an auxiliary guide plate (63) that can be rotated towards the ground direction after the discharge door is opened.

6. The folding method of the turnover box is characterized in that, It includes the following steps: a. Unlock the upper cover locking parts (3) on the front side plate (22) and the rear side plate (23); b. Unlock the quick locking structure between the front side plate (22), the rear side plate (23), the left side plate (24), and the right side plate (25); c. Turn the left cover plate (26) outwards towards the left side plate (24), turn the right cover plate (27) outwards towards the right side plate (25), and use the center of gravity formed by the left side plate (24) and the left cover plate (26) to face outwards to make the left side plate (24) stand upright, and use the center of gravity formed by the right side plate (25) and the right cover plate (27) to face outwards to make the right side plate (25) stand upright; d. Lift the front side plate (22) upwards so that its lower end disengages from the embedding groove of the chassis, and then rotate the front side plate towards the chassis until it is flipped onto the chassis. Lift the rear side plate (23) upwards so that its lower end disengages from the embedding groove of the chassis, and then rotate the rear side plate towards the chassis until it is flipped onto the front side plate (22); e. Push the left side plate (24) so that the left side plate (24) together with the left cover plate (26) rotates towards the chassis until it is flipped onto the rear side plate (23), and push the right side plate (25) so that the right side plate (25) together with the right cover plate (27) rotates towards the chassis until it is flipped onto the left side plate (24) to complete the folding of the turnover box.

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