WO2016124089A1 - 折叠式容器及其咬合结构 - Google Patents

折叠式容器及其咬合结构 Download PDF

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Publication number
WO2016124089A1
WO2016124089A1 PCT/CN2016/072343 CN2016072343W WO2016124089A1 WO 2016124089 A1 WO2016124089 A1 WO 2016124089A1 CN 2016072343 W CN2016072343 W CN 2016072343W WO 2016124089 A1 WO2016124089 A1 WO 2016124089A1
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engaging
engaging member
cavity
side plate
adjacent
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PCT/CN2016/072343
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English (en)
French (fr)
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上海鸿研物流技术有限公司
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Publication of WO2016124089A1 publication Critical patent/WO2016124089A1/zh

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  • the present invention relates to a collapsible container, and in particular to a locking system between adjacent side panels of a composite intermediate bulk container
  • Existing medium bulk storage containers are typically collapsible containers having a base and two pairs of side panels that are mounted to the base in a foldable manner relative to the base. When the side panels are in an upright position, the two adjacent side panels need to be locked to each other. In order to make the two adjacent side panels more securely connected, a snap-in structure is usually provided on the edge of the side panels, and when locked, the snap-fit structures first engage each other and then lock through the locking members.
  • the current occlusal structure mostly adopts a fixed occlusion structure.
  • a snap structure for a collapsible container including a base and two pairs of side plates, the side plates being hinged by a hinge mechanism
  • the base can be mounted on the base in a folded manner relative to the base, and the adjacent two side plates are connected to each other by the engaging structure, and the engaging structures are respectively located on the edges of the adjacent two side plates.
  • the first engaging member and the second engaging member are characterized in that: the first engaging member is disposed on an edge of one of the adjacent two side plates, and the other of the adjacent two side plates The edge is provided with a cavity, the occlusal structure further comprising a resetting structure, the resetting structure being telescopically received in the cavity such that one end of the second engaging member protrudes from the cavity when the side plate is upright And engaging the first engaging member, and in a folded state of the side panel, the one end of the second engaging member is retracted into the cavity.
  • the reset structure is a separate reset member, and the reset member and one end of the second snap member Cooperating, so that the other end of the second engaging member protrudes from the cavity and engages with the first engaging member in a state in which the side plate is upright, and in the folded state of the side plate, the second engaging member The other end is retracted into the cavity.
  • the first engaging member is provided with a bite head
  • the second engaging member is provided with a snap hole
  • the bite head is inserted into the engaging hole to realize two adjacent sides when the side plate is upright The bite of the side panels.
  • other snapping means other than the bite head and the bite hole may be employed, such as a bite block provided with a mutual snap structure.
  • one of the two adjacent side panels is longer than the other side panel, the first engaging member is disposed on the shorter side panel, and the second engaging member is disposed on the longer side On the board.
  • the second engaging member protrudes toward the inside of the container in a direction perpendicular to the plane of the side plate, so that when folded, the second engaging member is pressed back into the cavity under the action of the gravity of the side plate itself. in vivo.
  • an outer wall of the cavity facing the adjacent side plate is provided with an opening, a part of the second engaging member is received in the cavity, and another portion can protrude from the opening or retract inside the opening .
  • the reset structure is a spring or an elastic rubber.
  • the first bite member is provided with one or more biting heads.
  • the first engaging member is provided with a bite head
  • the resetting structure is a spring
  • the cavity is provided with a spring seat
  • the outer wall of the cavity facing the adjacent side plate is provided with an opening
  • One end of the second engaging member is provided with a spring receiving cavity, the other end is provided with a snap hole, and a middle portion of the second engaging member is provided with a baffle
  • one end of the spring is fixed on the spring seat, and One end is received in the spring receiving cavity
  • one end of the second engaging member provided with the engaging hole passes through the opening, and the other end of the spring receiving cavity is provided to cooperate with the spring
  • a baffle is located in the cavity and an outer contour of the baffle is larger than a contour of the opening such that the baffle cannot pass through the opening
  • the bite head is inserted into the bite hole in a side plate upright state Thereby the engagement of two adjacent side panels is achieved.
  • a plurality of the engaging structures are disposed along a height direction of the side plate, and a locking member is further disposed on the side plate provided with the first engaging member, and the locking member is disposed at a plurality of One or two positions of the same height in the occlusal structure are used to limit the occlusal structure to lock the first occluding member and the second occluding member, and thereby lock the adjacent two side panels.
  • a collapsible container comprising a base and two pairs of side panels, the side panels being foldable relative to the base by a hinge mechanism Mounted on the base, wherein the adjacent two side plates are engaged with each other by the above-mentioned snap-fit structure.
  • the bite of the long side panel when the long side panel and the short side panel are perpendicular to the base, the bite of the long side panel The fitting is in an extended state and bites with the corresponding snap of the short side panel and is stopped by the locking member in the short side panel to completely secure the long side panel and the short side panel.
  • the long side plate and the short side plate are parallel to the base and are stacked on each other. After being folded into position, the bite of the long side plate is retracted due to the gravity relationship of the side plates, thereby lowering the folding height and lowering. Folding space.
  • Figure 1 is a partially cutaway perspective view of a medium bulk container provided with the bite structure of the present invention
  • Figure 2 is a partial structural schematic view of the occlusal structure between two adjacent side panels of the container of Figure 1;
  • FIG. 3 is a schematic structural view showing the occlusal structure and the corresponding structure on the side panel of the present invention.
  • Figure 4 is a partial cross-sectional view of the side panel in an upright state, showing the snap structure
  • FIG. 5a-5c are perspective views showing the structure of a first engaging member of the occlusal structure of the present invention and a modification thereof;
  • Figure 6 is a perspective view showing the assembled state of the second engaging member and the returning member of the engaging structure of the present invention.
  • Figure 7 shows a partial cross-sectional view of two adjacent side panels in a locked and engaged state
  • Figure 8 shows a partial cross-sectional view of two adjacent side panels when unlocked but still engaged
  • Figures 9a-9b are partial cross-sectional views showing the folding process of the container
  • Figure 10 is a structural view showing a second embodiment of the second engaging member of the engaging structure according to the present invention and the related structure on the side panel;
  • 11a-11b are partial cross-sectional views showing a container folding process in which a second bite member according to the second embodiment is mounted.
  • Figure 1 shows a medium bulk container 100 provided with a bite structure 1 of the present invention, partially cut away to illustrate the bite structure 1 of the present invention.
  • the collapsible container 100 includes a base 4 and two pairs of side panels 2 and 3, and the side panels are mounted on the base 3 by means of a hinge mechanism (not shown) so as to be foldable relative to the base 4.
  • the two adjacent side panels 2 and 3 are bitten to each other by the snap-fit structure 1 and are locked to each other by a locking mechanism.
  • a container lid 5 is also provided above the container.
  • the occlusal structure 1 includes a first occluding member 11 respectively located on the edges of the adjacent two side panels 2 and 3 and
  • the second bite member 12 is as shown in FIG.
  • the side panels 2 are longer than the side panels 3, the first snap members 11 are disposed on the shorter side panels 3, and the second snap members 12 are disposed on the longer side panels 2.
  • the first engaging member 13 is provided with the engaging hole 124, and the second engaging member 11 is provided with the engaging head 11a. When the side plate is in the upright state, the engaging head 11a passes through the engaging hole 124, thereby realizing two sides.
  • a plurality of the engaging structures may be provided along the height direction of the side plates as needed, for example, five, six or seven or more.
  • the snap structure 1 further includes a reset member housed in a cavity 21 (shown in FIG. 4) provided on the side plate 2 and engaged with one end of the second bite member 12 so as to stand upright on the side plate In the state, the other end of the second engaging member 12 protrudes from the cavity and engages with the first engaging member, and in the folded state of the side plate, the other end of the second engaging member 12 is retracted into the cavity.
  • the reset member may be a member such as a spring or an elastic rubber that can elastically reset and retract the second engaging member. In the embodiment shown in Figures 1-6, the reset member is a spring.
  • the first engaging member 11 is a snap member 11 provided with a bite head 11a.
  • the snap member 11 is provided with a bite head 11a in which the main body 11b extends perpendicularly from the main body.
  • the body 11b of the snap member can be integrally molded on the side panel 3 or fixed to the side panel 3 by welding or the like.
  • the bite head 11a protrudes from the edge of the side panel and is perpendicular to the side panel.
  • the structure of the first engaging member 11 can be variously modified.
  • Figures 5b and 5c show two variants, respectively.
  • the latch 11' is provided with a main body 11b' and two engaging heads 11a' extending perpendicularly from the main body 11b'.
  • the latch 11" is provided with a main body 11b" and three engaging heads 11a' extending perpendicularly from the main body 11b''.
  • a number of bite heads can be provided as desired.
  • a number of latches 11, 11' and 11" and combinations thereof may be provided along the height of the side panels.
  • the first snap member may also simply be a plurality of raised blocks or hooks that project integrally from the edge of the side panel 3.
  • Fig. 6 is a perspective view showing an assembled state of the second engaging member 12 and the returning member 13 of the engaging structure of the present invention.
  • one end 121 of the second engaging member 12 is provided with a snap hole 124, and the lower end 122 is provided with a spring receiving cavity (not shown) for receiving one end of the spring 13.
  • a baffle 123 is provided in the middle of the second engaging member 12. The baffle 123 serves to prevent the second bite from disengaging from the cavity on the side panel, as will be described in further detail below.
  • a cavity 21 is provided on the side plate 2, and a spring seat 22 is disposed in the cavity 21, and an opening 23 is formed in an outer wall of the cavity facing the adjacent side plate.
  • the opening 23 faces the inside of the container, so that when assembled, the second engaging member 12 protrudes toward the inside of the container in a direction perpendicular to the plane of the side plate, so that when folded, under the action of the gravity of the side plate itself, the second The bite member is compressed back into the cavity, thereby reducing the volume of the container when folded.
  • one end of the spring 13 When assembled, one end of the spring 13 is fixed to the spring seat 22, and the other end is received in the spring receiving cavity of the second engaging member.
  • One end of the second engaging member 12 provided with the engaging hole 124 passes through the opening 23, and the other end 122 provided with the spring receiving chamber is engaged with the spring.
  • the baffle 123 is located within the cavity 21 and the outer contour of the baffle 123 is larger than the contour of the opening so that the baffle cannot pass through the opening.
  • the bite heads 11a (11a', 11a" are inserted into the engaging holes to effect the engagement of the two adjacent side plates.
  • Figures 9a-9b are partial cross-sectional views showing the folding process of the collapsible container of the present invention.
  • the side panels 3 (usually the shorter side panels) are first folded during the folding of the container.
  • the side panels 2 (usually the longer side panels) are folded.
  • the second engaging member 12 disposed on the side panel 2 faces the upper surface of the side panel 3, and when the side panel 2 is adjacent to the side panel 3,
  • the second engaging member 12 will contact the side plate 3, and at this time, the side plate 2 continues to move downward, and under the action of the gravity of the side plate 2, the second engaging member 12 will be retracted into the cavity of the side plate 2, so that the side plate 2 It is closely attached to the side panel 3, thereby reducing the space occupied by the container after folding.
  • Fig. 10 is a structural schematic view showing a second embodiment of the second engaging member 12' of the engaging structure according to the present invention and the related structure on the side panel 2'.
  • the main difference between this embodiment and the embodiment shown in Figures 1-6 is that the structure of the second engaging member 12' and the structure of the spring (reset member) and the structure of the cavity 21' on the side plate 2' are the same. , will not be detailed here.
  • the upper end of the second engaging member 12' of the present embodiment is provided with a engaging hole 121' for engaging with the engaging head on the other side plate.
  • a hinge pin 122' is provided at a lower end of the second engaging member 12' for rotatably coupling the second engaging member 12' to the side panel 2'.
  • the side plate 2' is provided with an open cavity 21' for accommodating the second engaging member 12', so that when the container is folded, the second engaging member 12' is rotated around the hinge pin 122' to lay down, so that the second bite is engaged. The piece 12' is completely placed within the cavity 21'.
  • FIGs 11a-11b are partial cross-sectional views showing the folding process of the collapsible container employing the second snap member 12'.
  • the side panels 3 (usually the shorter side panels) are first folded during the folding of the container. Then, the side panels 2' (usually the longer side panels) are folded, at this time, the second engaging member 12' disposed on the side panel 2' faces the upper surface of the side panel 3, when the side panel 2' is adjacent to the side panel At 3 o'clock, the second bite member 12' will contact the side plate 3, at this time, the side plate 2' continues to move downward, and under the action of the gravity of the side plate 2', the second bite member 12' will rotate and lay down completely. It is placed in the cavity 21' of the side panel 2 so that the side panel 2' and the side panel 3 are closely fitted, thereby reducing the space occupied by the container after folding.
  • a bite block provided with a mutual meshing structure, as long as the occlusion of one of the two adjacent side plates is engaged.
  • the structure can be retracted or hidden in the side panels when folded.
  • a reset member such as a spring may be integrally formed on the second engaging member.
  • the locking mechanism in addition to the above-described snap structure, a locking mechanism is provided between the adjacent two side plates, thereby achieving locking of the two side plates.
  • the locking mechanism includes a locking member 6, a locking hole 31 disposed on the side plate 3, and a limiting plate 32.
  • the locking member is received in the side plate 3 and the one end of the locking member is abutted.
  • the position plate 32 has the other end extending out of the locking hole 31 and pressing the second engaging member 12 to prevent the first engaging member and the second engaging member from being separated to achieve the locking between the adjacent two side plates.
  • the locking member 6 is provided with a locking tongue 61, a reset elastic piece 62 and an operation groove 63.
  • the reset elastic piece 62 abuts against the limiting plate 32, the locking tongue 61 passes through the locking hole 31, and the operation groove 63 is convenient for the pair
  • the locking member operates to unlock.
  • the locking member is disposed at the same height as one or both of the plurality of engaging structures for limiting the engaging structure to lock the first engaging member and the second engaging member, and In turn, the adjacent two side panels are locked.
  • the engaging members of the long side panel are in an extended state and bite with the corresponding engaging members of the short side panel by the short side panel
  • the locking member performs a check to completely fix the long side plate and the short side plate.
  • the long side plate and the short side plate are parallel to the base and are stacked on each other. After being folded into position, the bite of the long side plate is retracted due to the gravity relationship of the side plates, thereby lowering the folding height and lowering. Folding space.

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Abstract

一种可折叠式容器及其咬合结构，该可折叠式容器包括一个底座（4）和两对侧板（2、3），侧板通过铰链机构以可相对于底座折叠的方式安装在底座上，相邻的两个侧板之间通过咬合结构（1）相互咬合。该咬合结构包括第一咬合件（11）、第二咬合件（12）和复位件（13），第一咬合件固定于相邻的两个侧板中一个的边缘上，相邻的两个侧板中另一个边缘设有腔体（21），复位件容纳于腔体内并与第二咬合件的一端配合，从而在侧板直立状态下，第二咬合件的另一端伸出腔体并与第一咬合件咬合，在侧板折叠状态下，第二咬合件的另一端缩入腔体内。该可折叠容器在折叠时，至少一个侧板上的咬合件会因侧板的重力关系处于缩回状态，从而使折叠高度更低，降低折叠空间。

Description

折叠式容器及其咬合结构 技术领域
本发明涉及可折叠式容器，具体涉及复合型中型散装容器的相邻侧板之间的锁定系统
背景技术
现有的中型散装存储容器通常为可折叠式容器，其具有底座和两对侧板，侧板以可相对于底座折叠的方式安装在底座上。在侧板处于直立状态时，两个相邻的侧板需要进行相互锁定。为了使得两个相邻的侧板连接更牢固，在侧板的边缘上通常设有咬合结构，在锁定时，咬合结构先相互咬合，然后在通过锁定件进行锁定。目前的咬合结构多采用固定式咬合结构。
然而，在容器折叠时，由于咬合结构的存在，折叠后的相邻两个侧板并不能紧密贴合，由此一定程度上增加了折叠头的容器提交，一定程度上浪费了存储空间。
发明内容
本发明的目的是增强容器侧板间的咬合力降低变形已经松脱的可能性，并在容器折叠时减少空间浪费。
为实现上述目的，根据本发明的一方面，提供了一种用于可折叠式容器中的咬合结构，所述可折叠式容器包括一个底座和两对侧板，所述侧板通过铰链机构以可相对于所述底座折叠的方式安装在所述底座上，相邻的两个侧板之间通过所述咬合结构相互连接，所述咬合结构包括分别位于相邻的两个侧板的边缘上的第一咬合件和第二咬合件，其特征在于：所述第一咬合件设置于所述相邻的两个侧板中一个的边缘上，所述相邻的两个侧板中另一个边缘设有腔体，所述咬合结构还包括复位结构，所述复位结构可伸缩地容纳于所述腔体内从而使得在侧板直立状态下，所述第二咬合件的一端伸出所述腔体并与所述第一咬合件咬合，而在侧板折叠状态下，所述第二咬合件的所述一端缩入所述腔体内。
较佳地，所述复位结构为单独的复位件，所述复位件与所述第二咬合件的一端 配合，从而在侧板直立状态下，所述第二咬合件的另一端伸出所述腔体并与所述第一咬合件咬合，而在侧板折叠状态下，所述第二咬合件的另一端缩入所述腔体内。
一优选实施例中，所述第一咬合件设有咬合头，所述第二咬合件设有咬合孔，在侧板直立状态下，所述咬合头插入所述咬合孔从而实现两个相邻侧板的咬合。
其它实施例中，也可采用咬合头和咬合孔之外的其它咬合方式，诸如设有相互咬合结构的咬合块。
优选地，所述相邻的两个侧板中一个侧板比另一侧板长，所述第一咬合件设置在较短的侧板上，所述第二咬合件设置在较长的侧板上。
优选地，所述第二咬合件沿垂直于侧板平面的方向向容器内部凸出，从而在折叠时，在侧板自身重力的作用下，所述第二咬合件被按压缩回所述腔体内。
优选地，所述腔体的朝向相邻侧板的外壁设有开口，所述第二咬合件的一部分容纳于所述腔体内，而另一部分能够伸出所述开口或缩回所述开口内侧。
优选地，所述复位结构为弹簧或弹性橡胶。
优选地，所述第一咬合件设有一个或多个咬合头。
一优选实施例中，所述第一咬合件设有咬合头，所述复位结构是弹簧，所述腔体内设有弹簧座且所述腔体的朝向相邻侧板的外壁设有开口；所述第二咬合件的一端设有弹簧容纳腔，另一端设有咬合孔，且所述第二咬合件的中部设有挡板；其中，所述弹簧的一端固定于所述弹簧座上，另一端容纳于所述弹簧容纳腔中；所述第二咬合件的设有所述咬合孔的一端穿过所述开口，而设有所述弹簧容纳腔的另一端与所述弹簧配合；所述挡板位于所述腔体内且所述挡板的外轮廓大于所述开口的轮廓从而所述挡板不能穿过所述开口；以及在侧板直立状态下，所述咬合头插入所述咬合孔从而实现两个相邻侧板的咬合。
一优选实施例中，沿侧板的高度方向设有多个所述咬合结构，且在设有所述第一咬合件的侧板上还设有锁定件，所述锁定件设置在与多个所述咬合结构中的一个或两个相同高度的位置处，用于对所述咬合结构进行限位以锁定第一咬合件和第二咬合件，并进而锁定相邻的两个侧板。
根据本发明的第二方面，还提供了一种可折叠式容器，所述可折叠式容器包括一个底座和两对侧板，所述侧板通过铰链机构以可相对于所述底座折叠的方式安装在所述底座上，其中相邻的两个侧板之间通过上述的咬合结构相互咬合。
本发明的可折叠容器中，当长侧板与短侧板件处于垂直于底座时，长侧板的咬 合件处于伸出状态并与短侧板的对应咬合件咬合并由短侧板中的锁定件进行止回，从而将长侧板和短侧板完全固定。当容器处于折叠状态时，长侧板和短侧板平行于底座并相互层叠，折叠到位后长侧板的咬合件会因侧板的重力关系处于缩回状态，从而使折叠高度更低，降低折叠空间。
附图说明
图1是设有本发明的咬合结构的中型散装容器的局部剖切立体图；
图2是图1的容器的两个相邻侧板之间的咬合结构的局部结构示意图；
图3是示出本发明的咬合结构及侧板上对应结构的具备结构示意图；
图4是侧板处于直立状态时的局部剖视图，示出咬合结构；
图5a-5c是本发明的咬合结构的第一咬合件及其变型的结构立体图；
图6是本发明的咬合结构的第二咬合件和复位件的组装形态的立体图；
图7示出两个相邻侧板处于锁定并咬合状态时的局部剖视图；
图8示出两个相邻侧板处于解锁但仍然咬合时的局部剖视图；
图9a-9b是示出容器折叠过程的局部剖视图；
图10是示出根据本发明的咬合结构的第二咬合件的第二实施例及侧板上相关结构的结构示意图；以及
图11a-11b是示出安装有根据第二实施例的第二咬合件的容器折叠过程的局部剖视图。
具体实施方式
以下将结合附图对本发明的较佳实施例进行详细说明，以便更清楚理解本发明的目的、特点和优点。应理解的是，附图所示的实施例并不是对本发明范围的限制，而只是为了说明本发明技术方案的实质精神。
图1示出设有本发明的咬合结构1的中型散装容器100，其中局部剖切以示出本发明的咬合结构1。如图1所示，可折叠式容器100包括一个底座4和两对侧板2和3，侧板通过铰链机构(图未示)以可相对于底座4折叠的方式安装在底座3上，相邻的两个侧板2和3之间通过咬合结构1相互咬合并通过锁定机构相互锁定。可选地，在容器上方还设有容器盖5。
咬合结构1包括分别位于相邻的两个侧板2和3的边缘上的第一咬合件11和 第二咬合件12，如图2所示。本实施例中，侧板2比侧板3长，第一咬合件11设置在较短的侧板3上，而第二咬合件12设置在较长的侧板2上。本实施例中，第一咬合件13设有咬合孔124，而第二咬合件11设有咬合头11a，当侧板处于直立状态时，咬合头11a穿过咬合孔124，从而实现两个侧板之间的咬合。根据需要，可沿侧板的高度方向设有多个所述咬合结构，例如5个、6个或7个或更多。
本发明中，咬合结构1还包括复位件，复位件容纳于设置在侧板2上的腔体21(如图4所示)内并与第二咬合件12的一端配合，从而在侧板直立状态下，第二咬合件12的另一端伸出所述腔体并与所述第一咬合件咬合，而在侧板折叠状态下，第二咬合件12的另一端缩入腔体内。这里，复位件可以为弹簧或弹性橡胶等能够使得第二咬合件弹性复位和缩回的构件。图1-6所示的实施例中，复位件为弹簧。
如图3-6所示，根据一实施例，第一咬合件11是设有咬合头11a的咬合件11。如图5a所示，咬合件11设有主体11b从主体垂直延伸出的咬合头11a。咬合件的主体11b可在一体模制在侧板3上或通过焊接等方式固定于侧板3上。咬合头11a从侧板的边缘凸出并且垂直于侧板。
第一咬合件11的结构可有多种变型。图5b和5c分别示出两种变型。如图5b所示，锁闩11’设有主体11b’和从主体11b’垂直延伸出的两个咬合头11a’。类似地，如图5c所示，锁闩11”设有主体11b”和从主体11b’'垂直延伸出的三个咬合头11a’。应当理解的是，在一个第一咬合件上，可根据需要设置使得数量的咬合头。还应当理解的是，沿侧板高度方向可设有使得数量的锁闩11、11’和11”及其组合。
一替代实施例中，第一咬合件也可以仅仅是从侧板3边缘上一体突出的多个凸出块或钩状部。
图6示出本发明的咬合结构的第二咬合件12和复位件13的组装形态的立体图。如图6所示，第二咬合件12的一端121设有咬合孔124，下端122设有弹簧容纳腔(图未示)，用于容纳弹簧13的一端。在第二咬合件12的中部设有挡板123。挡板123用于防止第二咬合件脱离侧板上的腔体，下文将进一步详细说明。
如图2-4所示，在侧板2上设有腔体21，所述腔体21内设有弹簧座22且所述腔体的朝向相邻侧板的外壁设有开口23。该开口23朝向容器内侧，从而在组装好时，第二咬合件12沿垂直于侧板平面的方向向容器内部凸出，从而在折叠时，在侧板自身重力的作用下，所述第二咬合件被按压缩回所述腔体内，由此降低折叠时容器的体积。
组装时，弹簧13的一端固定于所述弹簧座22上，另一端容纳于第二咬合件的弹簧容纳腔中。第二咬合件12的设有咬合孔124的一端穿过开口23，而设有所述弹簧容纳腔的另一端122与所述弹簧配合。挡板123位于腔体21内且挡板123的外轮廓大于开口的轮廓从而所述挡板不能穿过所述开口。在侧板直立状态下，咬合头11a(11a’、11a”)插入所述咬合孔从而实现两个相邻侧板的咬合。
图9a-9b是示出本发明的可折叠式容器折叠过程的局部剖视图。在容器折叠过程中，侧板3(通常是较短的侧板)首先折叠。接着，侧板2(通常是较长的侧板)折叠，此时，设置于侧板2上的第二咬合件12面向侧板3的上表面，当侧板2靠近侧板3时，第二咬合件12将接触侧板3，此时，侧板2继续向下运动，在侧板2重力的作用下，第二咬合件12将缩入侧板2的腔体中，从而侧板2和侧板3紧密贴合，由此减小容器折叠后所占用的空间。
图10是示出根据本发明的咬合结构的第二咬合件12’的第二实施例及侧板2’上相关结构的结构示意图。本实施例与图1-6所示实施例的主要不同之处在于第二咬合件12’的结构和弹簧(复位件)的结构以及侧板2’上的腔体21'的结构，其余相同，在此不再详述。
如图10所示，本实施例的第二咬合件12’的上端设有咬合孔121’，用于与位于另一侧板上的咬合头咬合。在第二咬合件12’的下端设有铰链销122’，用于将第二咬合件12’可旋转地连接于侧板2’。侧板2’上设有开放的腔体21’，用于容纳第二咬合件12’，从而在容器折叠时，第二咬合件12’绕铰链销122’旋转而躺倒，使得第二咬合件12’完全置于腔体21’内。
图11a-11b是示出采用第二咬合件12’的可折叠式容器折叠过程的局部剖视图。在容器折叠过程中，侧板3(通常是较短的侧板)首先折叠。接着，侧板2’(通常是较长的侧板)折叠，此时，设置于侧板2’上的第二咬合件12’面向侧板3的上表面，当侧板2’靠近侧板3时，第二咬合件12’将接触侧板3，此时，侧板2’继续向下运动，在侧板2’重力的作用下，第二咬合件12’将旋转并躺倒而完全置于侧板2的腔体21’中，从而侧板2’和侧板3紧密贴合，由此减小容器折叠后所占用的空间。
需要指出的是，上述实施例中，也可采用咬合头和咬合孔之外的其它咬合方式，诸如设有相互咬合结构的咬合块，只要两个相邻的侧板中一个侧板上的咬合结构在折叠时能够缩回或隐藏在侧板内即可。另外，弹簧等复位件也可以一体地形成在第二咬合件上。
本发明中，除了上述咬合结构之外，在相邻的两个侧板之间还设有锁定机构，从而实现两个侧板的锁定。具体地，如图1-4所示，锁定机构包括锁定件6、设置在侧板3上的锁孔31和限位板32，锁定件容纳于侧板3中且锁定件的一端抵靠限位板32，另一端延伸出锁孔31，并压住第二咬合件12，从而防止第一咬合件和第二咬合件分离，以实现相邻两个侧板之间的锁定。
锁定件6设有锁舌61、复位弹片62和操作凹槽63，当组装好时，复位弹片62抵靠限位板32，锁舌61穿过锁孔31，操作凹槽63便于用于对锁定件进行操作以实现解锁。较佳地，锁定件设置在与多个所述咬合结构中的一个或两个相同高度的位置处，用于对所述咬合结构进行限位以锁定第一咬合件和第二咬合件，并进而锁定相邻的两个侧板。
本发明的可折叠容器中，当长侧板与短侧板件处于垂直于底座时，长侧板的咬合件处于伸出状态并与短侧板的对应咬合件咬合并由短侧板中的锁定件进行止回，从而将长侧板和短侧板完全固定。当容器处于折叠状态时，长侧板和短侧板平行于底座并相互层叠，折叠到位后长侧板的咬合件会因侧板的重力关系处于缩回状态，从而使折叠高度更低，降低折叠空间。
以上已详细描述了本发明的较佳实施例，但应理解到，在阅读了本发明的上述讲授内容之后，本领域技术人员可以对本发明作各种改动或修改。这些等价形式同样落于本申请所附权利要求书所限定的范围。

Claims (10)

  1. 一种用于可折叠式容器中的咬合结构，所述可折叠式容器包括一个底座和两对侧板，所述侧板通过铰链机构以可相对于所述底座折叠的方式安装在所述底座上，相邻的两个侧板之间通过所述咬合结构相互连接，所述咬合结构包括分别位于相邻的两个侧板的边缘上的第一咬合件和第二咬合件，其特征在于：所述第一咬合件设置于所述相邻的两个侧板中一个的边缘上，所述相邻的两个侧板中另一个边缘设有腔体，所述咬合结构还包括复位结构，所述复位结构可伸缩地容纳于所述腔体内从而使得在侧板直立状态下，所述第二咬合件的一端伸出所述腔体并与所述第一咬合件咬合，而在侧板折叠状态下，所述第二咬合件的所述一端缩入所述腔体内。
  2. 根据权利要求1所述的咬合结构，其特征在于：所述第一咬合件设有咬合头，所述第二咬合件设有咬合孔，在侧板直立状态下，所述咬合头插入所述咬合孔从而实现两个相邻侧板的咬合。
  3. 根据权利要求1所述的咬合结构，其特征在于：所述相邻的两个侧板中一个侧板比另一侧板长，所述第一咬合件设置在较短的侧板上，所述第二咬合件设置在较长的侧板上。
  4. 根据权利要求1所述的咬合结构，其特征在于：所述第二咬合件沿垂直于侧板平面的方向向容器内部凸出，从而在折叠时，在侧板自身重力的作用下，所述第二咬合件被按压缩回所述腔体内。
  5. 根据权利要求1所述的咬合结构，其特征在于：所述腔体的朝向相邻侧板的外壁设有开口，所述第二咬合件的一部分容纳于所述腔体内，而另一部分能够伸出所述开口或缩回所述开口内侧。
  6. 根据权利要求1所述的咬合结构，其特征在于：所述复位结构为弹簧或弹性橡胶。
  7. 根据权利要求2所述的咬合结构，其特征在于：所述第一咬合件设有一个或多个咬合头。
  8. 根据权利要求1所述的咬合结构，其特征在于：所述第一咬合件设有咬合头，所述复位结构是弹簧，所述腔体内设有弹簧座且所述腔体的朝向相邻侧板的外壁设有开口；所述第二咬合件的一端设有弹簧容纳腔，另一端设有咬合孔，且所述第二咬合件的中部设有挡板；其中，所述弹簧的一端固定于所述弹簧座上，另一端容纳 于所述弹簧容纳腔中；所述第二咬合件的设有所述咬合孔的一端穿过所述开口，而设有所述弹簧容纳腔的另一端与所述弹簧配合；所述挡板位于所述腔体内且所述挡板的外轮廓大于所述开口的轮廓从而所述挡板不能穿过所述开口；以及在侧板直立状态下，所述咬合头插入所述咬合孔从而实现两个相邻侧板的咬合。
  9. 根据权利要求1所述的咬合结构，其特征在于：沿侧板的高度方向设有多个所述咬合结构，且在设有所述第一咬合件的侧板上还设有锁定件，所述锁定件设置在与多个所述咬合结构中的一个或两个相同高度的位置处，用于对所述咬合结构进行限位以锁定第一咬合件和第二咬合件，并进而锁定相邻的两个侧板。
  10. 一种可折叠式容器，所述可折叠式容器包括一个底座和两对侧板，所述侧板通过铰链机构以可相对于所述底座折叠的方式安装在所述底座上，其特征在于：相邻的两个侧板之间通过权利要求1-9任一项所述的咬合结构相互咬合。
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