Folding box

Abstract

The invention discloses a folding box. The folding box comprises a bottom frame, end walls and hinge devices. The hinge device comprises an inner hinge, a hinge base and a hinge shaft assembly, the inner hinge is connected to the end wall and provided with an inner hinge through hole, the hinge base is connected to the bottom frame and provided with a first hinge base through hole, the hinge shaft assembly comprises a hinge shaft, and the hinge shaft is movably arranged in the inner hinge through hole and the first hinge base through hole. The hinge shaft can move between the opening position where the inner hinge through hole and the first hinge base through hole are opened and the closing position where the inner hinge through hole and the first hinge base through hole are shielded, and when the hinge shaft is in the opening position state, the hinge shaft, the inner hinge through hole and the first hinge base through hole are kept on the same axis. And the hinge shaft can move in the width direction of the bottom frame, and in the state that the hinge shaft is located at the closed position, the inner hinge is pivotally connected to the hinge base through the hinge shaft, so that the end wall can be pivotally connected to the bottom frame between the folding position where the end wall is folded on the bottom frame and the unfolding position.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of containers, in particular to a folding box. BACKGROUND

[0002] A conventional folding box is usually composed of a chassis and end walls arranged at both ends of the chassis. The end walls are hinged to hinge seats at both ends of the chassis through hinge shafts, and the folding box has no side wall structure. Since the side of the folding box is an open structure, it is usually suitable for loading and unloading goods from the side. However, when the customer needs to load and unload from the end of the folding box, the end wall must be removed from the chassis due to the structure of the end wall. To this end, the hinge shaft baffle welded on the outside of the outer hinge needs to be removed first to release the axial limitation of the hinge shaft, and then the hinge shaft is pulled out to remove the end wall. After completing the end loading and unloading, the hinge shaft needs to be knocked in, and the hinge shaft baffle needs to be re-welded to the outside of the outer hinge. This process is complex and involves hot work (such as welding), which not only requires relevant operation permits, but also increases transportation costs and operation cycles. At the same time, in order to maximize the use of yard space and ensure the stability of stacking, the conventional folding box is stacked in a transverse and close side-by-side manner, and the distance between the side-by-side folding boxes is small, which does not meet the space requirements of hot work (such as welding), and the space provided cannot pull out and knock in the hinge shaft from the outside of the outer hinge, resulting in that the end wall cannot be removed and installed at this time.

[0003] Therefore, there is a need for a folding box to at least partially solve the above problems. SUMMARY

[0004] A series of concepts in simplified form are introduced in the summary section, which will be further described in detail in the detailed description section. The summary section of the present application does not mean to attempt to limit the key features and essential technical features of the claimed technical solutions, nor to attempt to determine the protection scope of the claimed technical solutions.

[0005] To at least partially solve the above problems, the present application provides a folding box, which comprises: a chassis; end walls arranged at both ends of the chassis; and a hinge device comprising an inner hinge, a hinge seat and a hinge shaft assembly, the inner hinge being connected to the end wall and being provided with an inner hinge through hole, the hinge seat being connected to the chassis and being provided with a first hinge seat through hole, the hinge shaft assembly comprising: a hinge shaft movably arranged in the inner hinge through hole and the first hinge seat through hole, the hinge shaft being capable of moving between an open position for opening the inner hinge through hole and the first hinge seat through hole and a closed position for shielding the inner hinge through hole and the first hinge seat through hole, in the state that the hinge shaft is located in the open position, the hinge shaft is kept in the same axis with the inner hinge through hole and the first hinge seat through hole, and the hinge shaft is movable along the width direction of the chassis, in the state that the hinge shaft is located in the closed position, the inner hinge is pivotably connected to the hinge seat through the hinge shaft, so that the end wall is pivotably connected to the chassis between a folded position folded on the chassis and an unfolded position.

[0006] According to the folding box of the present application, the hinge shaft is movable between the open position of opening the inner hinge through hole and the first hinge seat through hole and the closed position of shielding the inner hinge through hole and the first hinge seat through hole, so that the dismounting and mounting of the end wall can be realized without the fire operation (such as welding), the operation is simpler and more convenient, the operation time is significantly shortened, the overall transportation cost of the customer is effectively reduced, and the use convenience and safety are improved.

[0007] Optionally, the chassis comprises a first support plate provided with a first support through hole, and the hinge shaft assembly further comprises: a slide hammer rod, one end of the slide hammer rod being connected to one end of the hinge shaft, and the other end of the slide hammer rod being movably arranged in the first support through hole; a first hammering plate arranged on the slide hammer rod, and a slide hammer movably arranged on the slide hammer rod along the length direction of the slide hammer rod, the slide hammer being closer to the hinge shaft relative to the first hammering plate; Optionally, the chassis further comprises: a first support plate provided with a first support through hole; a pair of slide hammer lock plates connected to the first support plate and forming a limiting hole between the first support plate and the slide hammer lock plates, the pair of slide hammer lock plates being oppositely arranged on both sides of the first support through hole; and a slide hammer blocking plate movably arranged in the limiting hole and movable between an open position of opening the first support through hole and a closed position of shielding the first support through hole, in the state that the slide hammer blocking plate is located in the open position, the slide hammer can be slid to hammer the first hammering plate, so that the slide hammer rod can be moved in the axial direction away from the hinge seat relative to the first support plate to drive the hinge shaft to exit from the inner hinge through hole and the first hinge seat through hole, so that the hinge shaft is located in the open position, in the state that the slide hammer blocking plate is located in the closed position, the hinge shaft is located in the closed position, and the slide hammer blocking plate can block the slide hammer rod from moving in the axial direction away from the hinge seat.

[0008] According to this solution, the hinge shaft can be removed and installed by operating the sliding hammer from the end of the folding box, thus eliminating the need to occupy space in the width direction of the box. Furthermore, the end wall can be removed and installed without open flame operations (such as welding), making operation simpler and more convenient, significantly shortening operation time, effectively reducing the customer's overall transportation costs, and improving ease of use and safety. In addition, when multiple folding boxes are stacked closely side-by-side horizontally, and the lateral spacing between the boxes is insufficient, loading and unloading of goods can be achieved from the end of the folding box.

[0009] Optionally, the hinge seat is located at a corner of the base frame, the first support plate is located at the end of the base frame and is closer to the center of the base frame in the width direction than the hinge seat, and the hinge shaft assembly does not extend beyond the outer contour of the base frame.

[0010] Optionally, the hinge shaft assembly further includes a second hammer plate disposed on the sliding hammer rod, the first hammer plate and the second hammer plate being spaced apart along the length direction of the sliding hammer rod, and the sliding hammer being spaced apart between the first hammer plate and the second hammer plate along the length direction of the sliding hammer rod.

[0011] Optionally, the base frame further includes a first limiting member connected to the first support plate. The first limiting member can abut against the sliding hammer baffle located in the open position to prevent the sliding hammer baffle from exiting the limiting hole.

[0012] Optionally, the hinge device further includes a pair of sleeves, the hinge seat is provided with a pair of first hinge seat through holes, the pair of first hinge seat through holes are spaced apart along the width direction of the base frame, the pair of sleeves are respectively disposed in the first hinge seat through holes, and the hinge shaft is disposed on the inner side of the sleeves.

[0013] Optionally, the outer peripheral surface of the other end of the hinge shaft is constructed as a tapered surface, the pair of sleeves includes a tapered sleeve and a straight sleeve, the tapered sleeve is disposed in the first hinge seat through hole located on the outer side, and the other end of the hinge shaft is disposed on the inner side of the tapered sleeve.

[0014] Optionally, the hinge base includes an outer hinge plate, the outer hinge plates are spaced apart along the width direction of the base frame, a pair of first hinge base through holes are respectively disposed on the outer hinge plate, the inner hinge is spaced apart between the outer hinge plates along the width direction of the base frame, and the first support plate is closer to the center of the width direction of the base frame than the outer hinge plates.

[0015] Optionally, the inner hinge is provided with a snap-fit ​​part, and the top of the hinge seat is provided with a slot. When the slide block is in the open position, the end wall can be removed from the base frame. The end wall removed from the base frame can be diagonally placed on the end of the base frame to be used as a ramp, and the snap-fit ​​part can be snapped into the slot.

[0016] Optionally, the base frame further includes a second support plate and a locking pin. The second support plate is provided with a second support through hole, and the hinge seat is provided with a second hinge seat through hole. The locking pin is movably disposed in the second support through hole. The locking pin can move between a locked position inserted into the second hinge seat through hole and an unlocked position withdrawn from the second hinge seat through hole. When the locking pin is in the locked position, the locking pin can abut against the latching part to lock the end wall in the unfolded position.

[0017] Optionally, the second support plate is disposed at the end of the base frame, and the second support plate is disposed between the hinge seat and the first support plate along the width direction of the base frame, and the locking pin does not extend beyond the outer contour of the base frame.

[0018] Optionally, the top of the locking pin is provided with a notch, and the base frame further includes a second limiting member, which is disposed on the second support plate and can rotate about an axial direction perpendicular to the second support plate, so as to switch between a locking position where it is engaged with the notch and an open position where it is disengaged from the notch.

[0019] Optionally, the notch includes a first notch and a second notch, the first notch and the second notch are spaced apart along the length direction of the locking pin, and the first notch is further away from the hinge seat than the second notch. When the second limiting member is engaged with the first notch, the second limiting member can limit the locking pin to the locked position. When the second limiting member is engaged with the second notch, the second limiting member limits the locking pin to the unlocked position. Attached Figure Description

[0020] The following drawings, which are incorporated herein by reference and used to understand this application, illustrate embodiments of the application and their descriptions, thereby explaining the principles of the application.

[0021] In the attached image: Figure 1 This is a perspective view of a folding box according to a preferred embodiment of the present application, wherein one end wall is located in the unfolded position and the other end wall is diagonally attached to the end of the base frame to serve as a ramp. Figure 2 for Figure 1A partial structural diagram of the folding box, where the hinge axis is in the closed position; Figure 3 for Figure 2 A three-dimensional schematic diagram of the hinge axis assembly of the folding box in the image; Figure 4 for Figure 2 A partial structural diagram of the folding box, in which the sliding baffle is in the closed position; Figure 5 for Figure 2 A partial structural diagram of the folding box, in which the sliding baffle is in the open position; Figure 6 for Figure 1 A partial structural diagram of the folding box, where the hinge axis is in the open position; Figure 7 for Figure 1 A partial structural diagram of the folding box, where the hinge axis is in the closed position; Figure 8 for Figure 1 An enlarged schematic diagram of a partial structure at point A, in which the end wall is diagonally supported at the end of the base frame to serve as a ramp; Figure 9 for Figure 1 A partial structural diagram of the folding box, showing the closed position and the locking pin in the locked position; Figure 10 for Figure 1 The diagram shows a partial structure of the folding box, with the hinge axis in the closed position and the locking pin in the unlocked position.

[0022] Explanation of reference numerals in the attached figures: 100: Folding Case 110: Base frame 111: First support plate 112: Second support plate 113: Slide Hammer Lock Plate 114: Sliding Hammer Baffle 115: First limiting component 116: Locking pin 117: Second limiting component 118: First support through hole 119: Second support through hole 120: End Wall 121: Fork slot hole 130: Hinge mechanism 131: Internal hinge 132: Hinge base 133: Hinge axis assembly 134: Internal hinge through hole 135: Through hole for the first hinge seat 136: Hinge pin 137: Sliding weight 138: First hammer strike plate 139 Second Hammer Striking Plate 140: Slide 141: Conical sleeve 142: Straight Sleeve 143: Connector 144: Card Slot 145: Second hinge seat through hole 151: Limiting hole 152: The First Gap 153: The Second Gap 154: Outer hinge plate 155: Locking pin handle 156: Slide hammer body 157: Slide Handle 158: Through hole for sliding hammer Detailed Implementation

[0023] The following description provides numerous specific details to offer a more thorough understanding of this application. However, it will be apparent to those skilled in the art that this application can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described to avoid confusion with this application.

[0024] To fully understand this application, a detailed description will be provided below. It is obvious that the implementation of embodiments of this application is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this application are described in detail below; however, other embodiments may also be available in addition to these detailed descriptions.

[0025] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.

[0026] In understanding the scope of this application, the term "comprising" and its derivatives, as used herein, are intended to be open-ended terms that specify the presence of a described feature, element, component, group, whole, and / or step, but do not exclude the presence of other undescribed features, elements, components, groups, wholes, and / or steps. This concept also applies to words with similar meanings, such as the terms "comprising," "having," and their derivatives.

[0027] The term "attached" or "joined" as used herein includes: a construction in which one element is directly fixed to another element by fixing it directly to another element; a construction in which one element is indirectly fixed to another element by fixing it to an intermediate member, which in turn is fixed to another element; and a construction in which one element is integral with another element, that is, one element is substantially part of another element. This definition also applies to words with similar meanings, such as "connect," "joint," "couple," "install," "adhere," "fix," and their derivatives. Finally, degree terms such as "substantially," "approximately," and "approximately" as used herein indicate the amount of deviation from which modifications to the terminology do not significantly alter the final result.

[0028] Ordinal numbers such as “first” and “second” used in this application are merely identifiers and have no other meaning, such as a specific order. Moreover, for example, the term “first component” does not imply the existence of a “second component”, and the term “second component” does not imply the existence of a “first component”.

[0029] It should be noted that the terms “up,” “down,” “front,” “back,” “left,” “right,” “inner,” “outer,” and similar expressions used in this article are for illustrative purposes only and are not intended to be restrictive.

[0030] In this document, terms such as “equal” and “same” are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use.

[0031] Unless otherwise stated, the numerical ranges in this document include not only the entire range within its two endpoints, but also the subranges contained therein.

[0032] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art.

[0033] This application provides a folding box 100, which mainly includes a base frame 110, an end wall 120, and a hinge device 130. The following will describe in conjunction with... Figures 1 to 10 A detailed description is provided for the folding case 100 according to this application.

[0034] like Figure 1 As shown, the base frame 110 is constructed as a rectangular structure arranged horizontally. End walls 120 are located at both ends of the base frame 110 and are pivotally connected to the base frame 110. Figure 2 , Figure 4 and Figure 5 As shown, the base frame 110 includes a first support plate 111, which is disposed at the end of the base frame 110. The first support plate 111 is constructed as a plate-like structure extending vertically, and the first support plate 111 is provided with a first support through hole 118.

[0035] like Figure 2 and Figure 3 As shown, the hinge device 130 includes an inner hinge 131, a hinge seat 132, and a hinge shaft assembly 133. The inner hinge 131 is connected to the end wall 120. Specifically, the inner hinge 131 is connected to both sides of the bottom of the end wall 120. The inner hinge 131 is provided with an inner hinge through hole 134 (see...). Figure 8 The hinge seats 132 are located at the four corners of the base frame 110 and are connected to the base frame 110. The first support plate 111 and the hinge seats 132 are spaced apart along the width direction of the base frame 110, and the first support plate 111 is closer to the center of the base frame 110 in the width direction than the hinge seats 132. The hinge seats 132 are provided with a first hinge seat through hole 135. The first support through hole 118, the inner hinge through hole 134, and the first hinge seat through hole 135 are all constructed as circular through holes. The hinge shaft assembly 133 is limited between the hinge seats 132 and the first support plate 111 along the width direction of the base frame 110, and the hinge shaft assembly 133 does not exceed the outer contour of the base frame 110, so it does not occupy the space of the box width. The hinge shaft assembly 133 mainly includes a hinge shaft 136, a sliding hammer rod 137, a first hammer striking plate 138, and a sliding hammer 140.

[0036] The hinge shaft 136 is constructed in a cylindrical shape. The hinge shaft 136 is movably disposed within the inner hinge through hole 134 and the first hinge seat through hole 135. That is, the hinge shaft 136 is inserted into the inner hinge through hole 134 and the first hinge seat through hole 135, and is movable relative to these two holes. The hinge shaft 136 is movable between an open position (opening the inner hinge through hole 134 and the first hinge seat through hole 135) and a closed position (closing the inner hinge through hole 134 and the first hinge seat through hole 135). When the hinge shaft 136 is in the open position, it remains coaxial with the inner hinge through hole 134 and the first hinge seat through hole 135, and is movable along the width direction of the base frame 110. With the hinge axis in the closed position, the inner hinge 131 is pivotally connected to the hinge seat 132 via the hinge axis 136, so that the end wall 120 can be pivotally connected to the base frame 110 between the folded position and the unfolded position folded onto the base frame 110.

[0037] The sliding weight 137 is constructed as a cylinder. One end of the sliding weight 137 ( Figure 3 The left end of the middle) is connected to one end of the hinge shaft 136, and the other end of the sliding hammer rod 137 ( Figure 3 The right end of the slide bar 137 is movably disposed in the first support through hole 118. The first support plate 111 is used to support the other end of the slide bar 137, and the slide bar 137 is movable relative to the first support through hole 118 along the axial direction of the slide bar 137.

[0038] The first striking plate 138 is fixedly mounted on the sliding hammer rod 137. The first striking plate 138 is constructed as an annular plate extending radially along the sliding hammer rod 137. The sliding hammer 140 is movably mounted on the sliding hammer rod 137 along its length, and the sliding hammer 140 is closer to the hinge axis 136 relative to the first striking plate 138; that is, the sliding hammer 140 is farther from the first support plate 111 relative to the first striking plate 138. Figure 3 As shown, the slide weight 140 includes a slide weight body 156 and a slide weight handle 157. The slide weight body 156 is cylindrical. The slide weight body 156 has a slide weight through hole 158 through which the slide weight rod 137 passes. The slide weight through hole 158 extends along the length of the slide weight body 156 and is circular. The diameter of the slide weight through hole 158 is larger than that of the slide weight rod 137. The slide weight handle 157 is U-shaped, and both ends of the slide weight handle 157 are connected to the slide weight body 156 to facilitate sliding the slide weight 140.

[0039] like Figure 2 , Figure 4 and Figure 5As shown, the base frame 110 also includes a pair of sliding hammer locking plates 113 and a sliding hammer baffle 114. The sliding hammer locking plates 113 are connected to the first support plate 111, and a limiting hole 151 is formed between the sliding hammer locking plates 113 and the first support plate 111. Specifically, both ends of the sliding hammer locking plates 113 are respectively connected to the first support plate 111, and the middle part of the sliding hammer locking plates 113 is spaced apart from the first support plate 111. The pair of sliding hammer locking plates 113 are arranged opposite to each other on both sides of the first support through hole 118, so a limiting hole 151 is provided on each opposite side of the first support through hole 118. In this embodiment, the pair of sliding hammer locking plates 113 are spaced apart along the height direction of the base frame 110 (i.e., the height direction of the folding box 100).

[0040] Both the sliding hammer locking plate 113 and the sliding hammer baffle 114 are disposed on the same side of the first support plate 111, that is, on the side of the first support plate 111 facing away from the hinge seat 132. The sliding hammer baffle 114 is movably disposed in the limiting hole 151 and can move between the open position of opening the first support through hole 118 and the closed position of blocking the first support through hole 118. That is, the sliding hammer baffle 114 can be inserted into at least one limiting hole 151 and can move relative to the limiting hole 151 to open or close the first support through hole 118. When the sliding hammer baffle 114 is inserted into the two limiting holes 151 located on both sides of the first support through hole 118, the sliding hammer baffle 114 is in the closed position. When the sliding hammer baffle 114 is inserted into one limiting hole 151 located on one side of the first support through hole 118, the sliding hammer baffle 114 is in the open position.

[0041] like Figure 6 As shown, when the sliding hammer baffle 114 is in the open position, the first support through hole 118 is opened. At this time, the sliding hammer 140 can be slid to strike the first hammer plate 138, so that the sliding hammer rod 137 can move relative to the first support plate 111 in an axial direction away from the hinge seat 132, so that the hinge shaft 136 can be withdrawn from the inner hinge through hole 134 and the first hinge seat through hole 135, so that the hinge shaft 136 is in the open position, thereby releasing the hinge between the inner hinge 131 and the hinge seat 132, thereby releasing the connection between the end wall 120 and the base frame 110, and realizing the removal of the end wall 120 from the base frame 110.

[0042] like Figure 7 As shown, when the slide bar baffle 114 is in the closed position, the hinge shaft 136 is disposed in the first hinge seat through hole 135 and the inner hinge through hole 134. The hinge shaft 136 is in the closed position, and the slide bar baffle 114 can abut against the other end of the slide bar 137 to prevent the slide bar 137 from moving in the axial direction away from the hinge seat 132, thereby preventing the hinge shaft 136 from exiting from the inner hinge through hole 134 and the first hinge seat through hole 135, thus improving safety.

[0043] According to the folding box 100 of this application, the hinge shaft assembly 133 is located at the end of the base frame 110 and does not extend beyond the outer contour of the base frame 110. The hinge shaft 136 can be removed and installed by operating the sliding hammer 140 from the end of the folding box 100, thus eliminating the need to occupy space in the box's width direction. Furthermore, the end wall 120 can be removed and installed without open flame operations (such as welding), making operation simpler and more convenient, significantly shortening operation time, effectively reducing the customer's overall transportation costs, and improving ease of use and safety. Even when multiple folding boxes 100 are stacked closely side-by-side laterally, and the lateral spacing between the folding boxes 100 is insufficient, loading and unloading of goods from the end of the folding box 100 is still possible.

[0044] like Figure 2 and Figure 3 As shown, the hinge shaft assembly 133 also includes a second hammer-striking plate 139. The second hammer-striking plate 139 is fixedly disposed on the sliding hammer rod 137. The second hammer-striking plate 139 is constructed as an annular plate-shaped structure extending radially along the sliding hammer rod 137. The first hammer-striking plate 138 and the second hammer-striking plate 139 are spaced apart along the length direction of the sliding hammer rod 137, and the sliding hammer 140 is spaced apart between the first hammer-striking plate 138 and the second hammer-striking plate 139 along the length direction of the sliding hammer rod 137.

[0045] Continue to refer to Figure 2 , Figure 4 and Figure 5 As shown, the base frame 110 also includes a first limiting member 115. The first limiting member 115 and the sliding hammer locking plate 113 are disposed on the same side of the first support plate 111, that is, on the side of the first support plate 111 facing away from the hinge seat 132. The first limiting member 115 is connected to the first support plate 111 and can abut against the sliding hammer baffle 114 in the open position to prevent the sliding hammer baffle 114 from exiting from the limiting hole 151 and to prevent the sliding hammer baffle 114 from being lost. In this embodiment, the first limiting member 115 and the pair of sliding hammer locking plates 113 are spaced apart along the height direction of the base frame 110 (that is, the height direction of the folding box 100).

[0046] like Figure 6 and Figure 7 As shown, the hinge device 130 also includes a pair of sleeves. The hinge seat 132 is correspondingly provided with a pair of first hinge seat through holes 135, which are spaced apart along the width direction of the base frame 110. The pair of sleeves are respectively disposed in the first hinge seat through holes 135, and the hinge shaft 136 is disposed inside the pair of sleeves. Preferably, the other end of the hinge shaft 136 ( Figure 6 and Figure 7The outer peripheral surface of the left end of the sleeve is tapered, which guides the hinge shaft 136 to be inserted into the pair of sleeves.

[0047] The hinge base 132 includes an outer hinge plate 154. The outer hinge plate 154 is configured as a plate-like structure extending along the height direction of the base frame, and the outer hinge plates 154 are spaced apart along the width direction of the base frame 110. A pair of first hinge base through holes 135 are respectively provided in the outer hinge plate 154. An inner hinge plate 131 is spaced apart between the outer hinge plates 154 along the width direction of the base frame 110. A first support plate 111 is closer to the center of the base frame 110 in the width direction than the outer hinge plates 154. The pair of sleeves includes a tapered sleeve 141 and a straight sleeve 142. The tapered sleeve 141 is provided in the outer first hinge base through hole 135 (i.e., in the first hinge base through hole 135 further away from the first support plate 111), and the other end of the hinge shaft 136 ( Figure 6 and Figure 7 The left side of the cone sleeve 141 is located on the inner side.

[0048] like Figure 6 As shown, with the sliding hammer baffle 114 in the open position, the first support through hole 118 is opened. At this time, the sliding hammer 140 can be slid (sliding towards the center of the width direction of the base frame 110) to strike the first hammering plate 138. Under the action of the impact force, the first hammering plate 138 drives the sliding hammer rod 137 to move towards the center of the width direction of the base frame 110, so that the hinge shaft 136 can be disengaged from the inner hinge through hole 134 and the first hinge seat through hole 135 (specifically referring to the conical sleeve 141 and the straight sleeve 142), thereby detaching the connection between the end wall 120 and the base frame 110, and realizing the removal of the end wall 120 from the base frame 110. The first hammer plate 138 can abut against the first support plate 111 to prevent the sliding hammer rod 137 and the hinge shaft 136 from moving further toward the center of the width direction of the base frame 110, thereby preventing the hinge shaft 136 from completely disengaging from the straight sleeve 142 and thus preventing the hinge shaft assembly 133 from being lost.

[0049] like Figure 1 As shown, the end wall 120 is provided with a pair of fork slot holes 121, which are spaced apart along the width direction of the end wall 120. When the end wall 120 is in the unfolded position, a forklift is used to lift the end wall 120 through the pair of fork slot holes 121, and then the sliding hammer 140 is slid to allow the hinge shaft 136 to exit from the inner hinge through hole 134 and the first hinge seat through hole 135.

[0050] like Figure 7As shown, when the end wall 120 needs to be installed on the base frame 110, the sliding hammer 140 slides toward the hinge seat 132 to strike the second hammer plate 139. Under the action of the impact force, the second hammer plate 139 drives the sliding hammer rod 137 to move along the center of the width direction away from the base frame 110 (i.e., move toward the hinge seat 132), so that the hinge shaft 136 is inserted into the conical sleeve 141, the straight sleeve 142 and the inner hinge through hole 134, so that the inner hinge 131 is pivotally connected to the hinge seat 132 through the hinge shaft 136, thereby pivotally installing the end wall 120 onto the base frame 110. Simultaneously, after the hinge shaft 136 is inserted into the conical sleeve 141, the straight sleeve 142, and the inner hinge through hole 134, the sliding hammer baffle 114 automatically slides down under gravity, causing the first support through hole 118 to be closed, thus preventing the hinge shaft 136 from exiting from the inner hinge through hole 134 and the first hinge seat through hole 135. The second hammer plate 139 can abut against the hinge seat 132 (specifically, the outer hinge plate 154) to prevent the hinge shaft 136 and the sliding hammer rod 137 from moving further along the center in the width direction away from the base frame 110, thereby preventing the hinge shaft 136 from dislodging from the conical sleeve 141 and the straight sleeve 142, and thus preventing the hinge shaft assembly 133 from being lost.

[0051] like Figure 8 As shown, the inner hinge 131 is provided with a locking part 143, and the top of the hinge seat 132 is correspondingly provided with a locking groove 144. When the sliding hammer baffle 114 is in the open position, the end wall 120 can be removed from the base frame 110. The end wall 120 removed from the base frame 110 can be leaned at the end of the base frame 110 to be used as a ramp, and the locking part 143 can be locked into the locking groove 144 to position the end wall 120 relative to the base frame 110 and prevent the end wall 120 from moving relative to the base frame 110.

[0052] like Figure 9 and Figure 10 As shown, the base frame 110 also includes a second support plate 112 and a locking pin 116. The second support plate 112 is disposed at the end of the base frame 110 and is configured as a plate-like structure extending vertically. The second support plate 112 is disposed between the hinge seat 132 and the first support plate 111 along the width direction of the base frame 110. The second support plate 112 is provided with a second support through hole 119, and the hinge seat 132 is correspondingly provided with a second hinge seat through hole 145. The locking pin 116 is movably disposed in the second support through hole 119 and does not extend beyond the outer contour of the base frame 110. The second support plate 112 can support the locking pin 116, and the locking pin 116 can move relative to the second support through hole 119 along the length direction of the locking pin 116.

[0053] The locking pin 116 is movable between a locked position, where it is inserted into the second hinge seat through hole 145, and an unlocked position, where it is withdrawn from the second hinge seat through hole 145. In the locked position, the locking pin 116 can be inserted into the second hinge seat through hole 145 of the hinge seat 132 and abut against the engaging portion 143 of the inner hinge 131 to prevent the inner hinge 131 from rotating relative to the hinge seat 132, thereby locking the end wall 120 in the unfolded position. The cross-sectional shapes of the second support through hole 119 and the second hinge seat through hole 145 correspond to the cross-sectional shape of the locking pin 116. In this embodiment, the locking pin 116 has a rectangular cross-sectional shape, and the second support through hole 119 and the second hinge seat through hole 145 are correspondingly rectangular.

[0054] The locking pin 116 has a notch at its top. The base frame 110 also includes a second limiting member 117. The second limiting member 117 is disposed on the second support plate 112 and is rotatable relative to the second support plate 112 about an axial direction perpendicular to the second support plate 112, so as to switch between a locked position engaged with the notch and an open position disengaged from the notch. Specifically, the notch includes a first notch 152 and a second notch 153. The first notch 152 and the second notch 153 are spaced apart along the length of the locking pin 116, and the first notch 152 is further away from the hinge seat 132 than the second notch 153.

[0055] like Figure 9 As shown, when the second limiting member 117 is engaged with the first notch 152, the second limiting member 117 can limit the locking pin 116 to the locked position. At this time, the locking pin 116 is inserted into the second hinge seat through hole 145 of the hinge seat 132 and can abut against the engaging part 143 of the inner hinge 131. Figure 10 As shown, when the second limiting member 117 engages with the second notch 153, the second limiting member 117 limits the locking pin 116 to the unlocked position. At this time, the locking pin 116 exits from the second hinge seat through hole 145 of the hinge seat 132 and disengages from the engaging part 143 of the inner hinge 131. The inner hinge 131 loses the stopping effect of the locking pin 116, and the inner hinge 131 can rotate relative to the hinge seat 132 around the hinge axis 136, so that the end wall 120 can rotate to the folded position of the base frame 110.

[0056] The locking pin 116 is provided with a locking pin handle 155, which is located at the end of the locking pin 116. Specifically, the locking pin handle 155 is located at the end of the locking pin 116 near the second support plate 112, that is, the end away from the hinge seat 132. The locking pin handle 155 is located on the side of the second support plate 112 facing away from the hinge seat 132, so as to facilitate the movement of the locking pin 116 by means of the locking pin handle 155, making operation convenient.

[0057] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of this application.

[0058] The features described in one embodiment herein may be applied, alone or in combination with other features, to another embodiment, unless the feature is not applicable in that other embodiment or otherwise stated.

[0059] This application has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this application to the described embodiments. Furthermore, those skilled in the art will understand that this application is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this application, all of which fall within the scope of protection claimed in this application.

Claims

1. A folding case, characterized in that, include: Base frame; End walls, which are disposed at both ends of the base frame; as well as A hinge device includes an inner hinge, a hinge seat, and a hinge shaft assembly. The inner hinge is connected to the end wall and has an inner hinge through hole. The hinge seat is connected to the base frame and has a first hinge seat through hole. The hinge shaft assembly includes: A hinge shaft is movably disposed within the inner hinge through hole and the first hinge seat through hole. The hinge shaft is movable between an open position that opens the inner hinge through hole and the first hinge seat through hole and a closed position that blocks the inner hinge through hole and the first hinge seat through hole. When the hinge axis is in the open position, the hinge axis is coaxial with the inner hinge through hole and the first hinge seat through hole, and the hinge axis is movable along the width direction of the base frame. With the hinge axis in the closed position, the inner hinge is pivotally connected to the hinge seat via the hinge axis, such that the end wall can be pivotally connected to the base frame between a folded position and an unfolded position folded onto the base frame.

2. The folding case according to claim 1, characterized in that, The base frame includes a first support plate, the first support plate being provided with a first support through hole, and the hinge shaft assembly further includes: A sliding hammer rod, one end of which is connected to one end of the hinge shaft, and the other end of which is movably disposed in the first support through hole; A first striking plate, the first striking plate being disposed on the sliding hammer rod; and A sliding hammer is movably disposed on the sliding hammer rod along the length direction of the sliding hammer rod, and the sliding hammer is closer to the hinge axis relative to the first hammer striking plate.

3. The folding case according to claim 2, characterized in that, The base frame also includes: A pair of sliding hammer locking plates, the sliding hammer locking plates being connected to the first support plate and forming a limiting hole between them, the pair of sliding hammer locking plates being disposed opposite to each other on both sides of the first support through hole; and A sliding hammer baffle is movably disposed within the limiting hole and is movable between an open position that opens the first support through hole and a closed position that blocks the first support through hole. With the sliding hammer baffle in the open position, the sliding hammer can be slid to strike the first hammer plate, allowing the sliding hammer rod to move relative to the first support plate in an axial direction away from the hinge seat. This causes the hinge shaft to retract from the inner hinge through hole and the first hinge seat through hole, thus placing the hinge shaft in the open position. When the slide block is in the closed position, the hinge shaft is in the closed position, and the slide block can prevent the slide rod from moving in an axial direction away from the hinge seat.

4. The folding case according to claim 3, characterized in that, The hinge seat is located at the corner of the base frame, the first support plate is located at the end of the base frame and is closer to the center of the base frame in the width direction than the hinge seat, and the hinge shaft assembly does not extend beyond the outer contour of the base frame.

5. The folding case according to claim 2, characterized in that, The hinge shaft assembly further includes a second hammer plate disposed on the sliding hammer rod. The first hammer plate and the second hammer plate are spaced apart along the length direction of the sliding hammer rod, and the sliding hammer is spaced apart between the first hammer plate and the second hammer plate along the length direction of the sliding hammer rod.

6. The folding case according to claim 3, characterized in that, The base frame also includes a first limiting member, which is connected to the first support plate. The first limiting member can abut against the sliding hammer baffle located in the open position to prevent the sliding hammer baffle from exiting the limiting hole.

7. The folding case according to claim 2, characterized in that, The hinge device further includes a pair of sleeves, the hinge seat is provided with a pair of first hinge seat through holes, the pair of first hinge seat through holes are spaced apart along the width direction of the base frame, the pair of sleeves are respectively disposed in the first hinge seat through holes, and the hinge shaft is disposed on the inner side of the sleeves.

8. The folding case according to claim 7, characterized in that, The outer peripheral surface of the other end of the hinge shaft is tapered. The pair of sleeves includes a tapered sleeve and a straight sleeve. The tapered sleeve is disposed in the first hinge seat through hole located on the outer side, and the other end of the hinge shaft is disposed on the inner side of the tapered sleeve.

9. The folding case according to claim 7, characterized in that, The hinge base includes an outer hinge plate, which is spaced apart along the width direction of the base frame. A pair of first hinge base through holes are respectively disposed on the outer hinge plate. The inner hinge is spaced apart between the outer hinge plates along the width direction of the base frame. The first support plate is closer to the center of the base frame in the width direction than the outer hinge plate.

10. The folding case according to claim 4, characterized in that, The inner hinge is provided with a snap-fit ​​part, and the top of the hinge seat is provided with a slot. When the sliding hammer baffle is in the open position, the end wall can be removed from the base frame. The end wall removed from the base frame can be diagonally placed on the end of the base frame to be used as a ramp, and the snap-fit ​​part can be snapped into the slot.

11. The folding case according to claim 10, characterized in that, The base frame also includes a second support plate and a locking pin. The second support plate is provided with a second support through hole, and the hinge seat is provided with a second hinge seat through hole. The locking pin is movably disposed in the second support through hole. The locking pin can move between a locked position inserted into the second hinge seat through hole and an unlocked position withdrawn from the second hinge seat through hole. When the locking pin is in the locked position, the locking pin can abut against the latching part to lock the end wall in the unfolded position.

12. The folding case according to claim 11, characterized in that, The second support plate is disposed at the end of the base frame, and the second support plate is disposed between the hinge seat and the first support plate along the width direction of the base frame. The locking pin does not extend beyond the outer contour of the base frame.

13. The folding case according to claim 11, characterized in that, The top of the locking pin is provided with a notch, and the base frame also includes a second limiting member. The second limiting member is disposed on the second support plate and can rotate about an axial direction perpendicular to the second support plate so as to switch between a locking position where it is engaged with the notch and an open position where it is disengaged from the notch.

14. The folding case according to claim 13, characterized in that, The notch includes a first notch and a second notch, which are spaced apart along the length of the locking pin. The first notch is further away from the hinge seat than the second notch. When the second limiting member is engaged with the first notch, the second limiting member can limit the locking pin to the locked position. When the second limiting member is engaged with the second notch, the second limiting member limits the locking pin to the unlocked position.

Images