CN1122629C

CN1122629C - Easy-to-operate foldable box corner post locking device

Info

Publication number: CN1122629C
Application number: CN 99107967
Authority: CN
Inventors: 马彬
Original assignee: Polyearn Development Corp
Current assignee: Polyearn Development Corp
Priority date: 1999-06-08
Filing date: 1999-06-08
Publication date: 2003-10-01
Anticipated expiration: 2019-06-08
Also published as: CN1256235A

Abstract

The present invention discloses a connecting device for corner posts of a folding container, which is safe and convenient to operate. The connecting device for corner posts of a folding container comprises an internal hinge plate and two parallel external hinge plates, wherein the internal hinge plate is mutual connected with the external hinge plates through rotary pins which are vertical to the internal hinge plate and the external hinge plates; pin holes which are vertical to each of the hinge plates are formed on the external hinge plates and the internal hinge plate; the external hinge plates and the internal hinge plate are provided with locking pins which correspond to the pin holes; the lock pins are fixedly connected with one end of a sliding shaft; the sliding shaft is provided with two baffles; the baffles which are vertical to the sliding shaft are fixedly connected with the sliding shaft; a sliding weight is sheathed between the two baffles. The present invention is characterized in that the sliding weight is provided with a U-shaped handle which is fixedly connected with the sliding weight. The device of the present invention overcomes the defect that the sliding weight in the existing locking device is easy to injure hands due to inconvenient operation.

Description

The foldable box corner post locking device of easy-to-operate

The invention belongs to the container technology field, it relates to a kind of structure of collapsible container, especially the structure of the latching device of collapsible container corner post.

Collapsible container (abbreviation folding carton) is made up of a platform underframe and four corner posts perpendicular to this underframe.Every corner post lays respectively at the position at four angles of platform underframe, links to each other with the platform underframe by hinge.Usually be connected with end wall panel between two corner posts of every end.Corner post can be locked in the upright position by latching device, also may be folded on the platform underframe when latching device is released.In case every corner post is folded on the underframe, this kind folding carton can be used as general platform container again and uses, and other folding carton is stackable on it, like this concerning depositing and transporting, and all both economical practicality.

Existing corner post is locked in the slide-bar that the latching device of upright position generally comprises a taper pin and is connected as a single entity with taper pin, and on slide-bar, be provided with sliding hammer and baffle plate, produce impulsive force by operating sliding hammer impingement baffles, the promotion taper pin enters cooresponding pin-and-hole and corner post is locked.In the time of corner post need being folded, the reversing sense impingement baffles withdraws from taper pin from pin-and-hole.Sliding hammer in the existing latching device has dumb-bell shape, big centre, two is little, hand is directly held the sliding hammer body of dumb-bell shape during operation, use this sliding hammer, firmly manganese is a bit slightly during operation, operator's hand is crushed by the bump of dumbbell front end or rear end and slide-bar overhead gage, and the sliding hammer processing safety of this dumb-bell shape is relatively poor.Also has a kind of sliding hammer for cylindrical sliding hammer body band one straight-bar operating handle, the sliding hammer of using in the US Patent 4353520 has just been used the sliding hammer of this band straight-bar handle, though relatively safety is gone up in this sliding hammer operation, but this sliding hammer is not easy to along the slide bar axial force distribution, fixed dam on the impact groove drives lock pin and advances or retreat effectively, usually make to depart between sliding hammer body axial line and the slide-bar axial line and cause sliding hammer body and slide-bar Do to live owing to the operator is difficult to grasp accurately work angle, influence is operation normally.

The objective of the invention is: a kind of foldable box corner post locking device of easy-to-operate is provided, overcomes sliding hammer operation inconvenience in the existing latching device, hinder the shortcoming of hand easily.

The object of the present invention is achieved like this: a kind of foldable box corner post locking device of easy-to-operate, comprise the outer flap that the inner hinge plate is parallel with two, between the flap and parallel with outer flap, captive joint with corner post by the end of described inner hinge plate outside two for described inner hinge plate; Described inner hinge plate and outer flap are by being coupled to each other perpendicular to shipping and reselling on another market of they; Outer flap is parallel with the curb girder of platform underframe and captive joint with the curb girder and the end carriage of platform underframe; Outside described, be provided with pin-and-hole vertical with each flap and that each flap is connected on flap and the inner hinge plate, and be provided with the lock pin with described pin-and-hole corresponding matching; Described lock pin is fixedly connected on an end of a slide-bar, and the other end of this slide-bar passes the hole on the riser, and this riser is vertical with described end carriage and captive joint with end carriage; On described slide-bar, be provided with two baffle plates vertical with slide-bar and that captive joint with slide-bar, and can be along the sliding hammer of slide-bar slip on described slide-bar at the borehole jack that is provided with between two baffle plates by the axle center; It is characterized in that, on described sliding hammer, be provided with the U-shaped handle of captiveing joint with it.

Aforesaid latching device of the present invention, very convenient when holding the lever operated sliding hammer of U-shaped owing to be provided with the U-shaped handle on sliding hammer, no matter size firmly, operator's hand can not crushed by bump.Hold the lever operated sliding hammer of U-shaped and also be convenient to along the slide-bar axial force distribution, the baffle belt pendulum lock pin on the impact groove is advanced or retreated effectively, can avoid sliding hammer body and slide bar Do to live fully, and is firmly convenient, operates smooth and easy.

Below in conjunction with drawings and Examples the present invention is described in further detail.

Fig. 1 is the folding carton axonometric drawing;

Fig. 2 is for being deposited in the lateral plan of several folding cartons together after folding;

Folding carton end angle axonometric drawing when Fig. 3 locks for latching device of the present invention;

Fig. 4 is the cutaway view in inside and outside flap and rectangular pyramid hole;

Folding carton end angle axonometric drawing when Fig. 5 unclamps for latching device of the present invention.

Figure 1 shows that a representative type folding carton.It is made up of platform underframe 1, end carriage 3, bottom side beams 4, corner post 5, headwall 6, end back timber 7 and bottom beam 8.On each angle of folding carton corner casting 9 and 10 are housed all, corner casting 9 direct castings porose 11 use for suspender or twistlock.Headwall 6 can be locked in graphic stand up position by hinge assembly 12, and when hinge 12 was in releasing orientation, headwall 6 may be folded on the underframe.

Figure 2 shows that after one group of

similar folding carton

13,14,15,16,17 folds to be stacked in together, be convenient to transport and deposit.

Folding carton end angle axonometric drawing when Fig. 3 locks for latching device of the present invention, its latching device is an exemplary embodiments of the present invention.This latching device comprises the outer flap 19 that inner hinge plate 18 is parallel with two, and between the flap 19 and parallel with outer flap 19, captive joint with corner post 5 by the end of inner hinge plate 18 outside two for inner hinge plate 18; Inner hinge plate 18 and outer flap 19 are by 20 being coupled to each other perpendicular to shipping and reselling on another market of they; The curb girder 4 of outer flap 19 and platform underframe 1 is parallel and captive joint with the curb girder 4 and the end carriage 3 of platform underframe 1; Flap 19 and inner hinge plate 18 are provided with pin-and-hole 24 vertical with each flap and that each flap is connected outside, and are provided with the lock pin 23 with pin-and-hole 24 corresponding matching; Lock pin 23 is fixedly connected on an end of slide-bar 30, and the other end of slide-bar 30 passes the hole 32 on the riser 31, and riser 31 and end carriage 3 are vertical and captive joint with end carriage 3; On slide-bar 30, be provided with and slide-bar 30 baffle plate 25 vertical and that captive joint with slide-bar 30 and baffle plates 29, and between baffle plate 25 and baffle plate 29, be provided with the sliding hammer 28 that borehole jack by the axle center can slide along slide-bar 30 on slide-bar 30; On sliding hammer 28, be provided with the U-shaped handle 27 of captiveing joint with it.

Inner hinge plate 18, outer flap 19 and the hinge assembly of 20 formations of shipping and reselling on another market.Inner hinge plate 18 can 20 rotate along shipping and reselling on another market, thereby corner post 5 can be erected and can be folding to horizontal direction along curb girder 4.Lock pin 23 is used for when corner post 5 erects, and inserts along pin-and-hole 24, thereby the position of corner post 5 is fixed.

Sliding hammer 28 is the cylinder that an axle center is provided with the hole in the present embodiment.Be provided with the clamp 26 that flexibly connects by rotating shaft 33 and end carriage 3 in appropriate location corresponding to slide-bar 30.Lock pin 23 is the rectangular pyramid pin, and cooresponding with it pin-and-hole 24 is the rectangular pyramid hole.

Lock pin 23 adopts the rectangular pyramid pin, and cooresponding with it pin-and-hole 24 adopts the rectangular pyramid hole.This is one of key character in the present embodiment.In the tradition latching device, lock pin is generally cuboid, cylinder, ellipsoid, single face voussoir or cone, bores corresponding hole and cooperate lock pin locking corner post as lockpin hole on the flap of hinge.During as lock pin, the gap between lock pin and lockpin hole can't be eliminated with cuboid and cylinder.During as lock pin, perpendicular other two sides is difficult to enter lockpin hole, or the gap is very big, the problem that exists the gap identical with the cuboid lock pin to eliminate with the single face voussoir.Resemble US Patent 4,353,520 usefulness single face voussoirs are as lock pin.With ellipsoid during as lock pin, be to utilize to relatively rotate between lock pin and the lockpin hole to produce axial off-centre and come wedging, there is major part not contact between lock pin and the lockpin hole.During as lock pin, though do not have the gap between locking back lock pin and lockpin hole, when corner post was subjected to the power of wigwag motion, corner post rotated around taper pin easily, and corner post stability is affected with taper pin.Resembling the GB2073149 of British patent just is to use taper pin as lock pin.

Because lock pin 23 has adopted the rectangular pyramid pin in the present embodiment, the lockpin hole 24 in the cooresponding with it inside and outside flap has adopted the rectangular pyramid hole.Rectangular pyramid pin 23 can make it lock in the rectangular pyramid hole or unclamp by moving axially in rectangular pyramid hole 24.When taper pin 23 was in locking state in taper hole 24, taper pin 23 contacted fully with the surface of taper hole 24, has sizable coupling mechanism force, can bear bigger load.Because this taper pin 23 is the rectangular pyramid pin, taper hole 24 is rectangular pyramid with matching hole, taper pin 23 in taper hole 24 without any the trend of rotating, as long as taper pin 23 does not also withdraw from taper hole 24 fully, corner post 5 just is in stabilized conditions, can not topple over, the stability of corner post and processing safety strengthen greatly with the lock pin of other shape.

Be subjected to the restriction of the distance between baffle plate 29 and the riser 31, rectangular pyramid pin 23 can only axially move in taper hole 24, and when latching device unclamped, rectangular pyramid pin 23 residing positions neither can hinder folding of inner hinge plate 18 can not drop out outer flap 19 again.

Corner post 5 is in stand up position among Fig. 3, and latching device is in locking state.Its locking process is as follows: after corner post 5 is in stand up position, at first upwards start clamp 26, make it center on upwards upset of rotating shaft 33, hold the U-shaped operating handle 27 on the sliding hammer 28, applying an external force makes sliding hammer 28 along the axis of slide-bar 30 impingement baffles 25 forward, make rectangular pyramid pin 23 and be fixed on all other part on the slide-bar 30 along with slide-bar 30 levels move forward, under the effect of the sliding hammer 28 horizontal axis power that produced, in rectangular pyramid pin 23 progresses into, in the rectangular pyramid hole 24 of outer flap, make the surface of rectangular pyramid pin 23 and the surperficial close fit of taper hole 24, to reach in the locking, the purpose of outer flap and corner post 5.Simultaneously, putting down clamp 26 makes on its side that is stuck in baffle plate 25 34.Clamp 26 bottoms can have the circular shape similar to the shape of slide-bar 30.Clamp 26 engages with baffle plate 25, has limited all parts that comprise rectangular pyramid pin 23 that are fixed on the slide-bar 30, can not arbitrarily move.

Fig. 4 is the cutaway view in inside and outside flap rectangular pyramid hole, represented latching device relation between the rectangular pyramid hole 24 on rectangular pyramid pin 23 and the inside and outside flap in the locking process.When just beginning to insert rectangular pyramid pin 23, the surface in the rectangular pyramid hole 24 in taper pin 23 and the inside and outside flap has only small part to contact, but work as along with taper pin 23 going deep in taper hole 24, just make the taper pin 23 and the surface contact area of taper hole 24 increase gradually, along with taper pin 23 is pushed ahead more, taper pin 23 is also just got over closed contact with the taper hole 24 of inside and outside flap, has just reached the purpose of locking.

Folding carton end angle axonometric drawing when Fig. 5 unclamps for latching device of the present invention.When under latching device is in locking state, needing to unclamp latching device, at first upwards start clamp 26, make it center on upwards upset of rotating shaft 33, hold the U-shaped operating handle 27 on the sliding hammer 28, applying an external force makes sliding hammer 28 along the axis of slide-bar 30 impingement baffles 29 backward, make rectangular pyramid pin 23 and be fixed on all other part on the slide-bar 30 along with slide-bar 30 levels move backward, under the effect of the sliding hammer 28 horizontal axis power that produced, rectangular pyramid pin 23 with in, taper hole 24 original closed contacts of outer flap are removed gradually, so that rectangular pyramid pin 23 withdraws from taper hole 24 gradually.When baffle plate 29 contacted with riser 31, rectangular pyramid pin 23 had just fallen back on the position of the rotation that does not hinder inner hinge plate 18 and corner post 5, and can put down clamp 26 this moment, and the pin 20 that then corner post 5 rotated is down folding in platform.

Claims

1, a kind of foldable box corner post locking device of easy-to-operate, comprise the outer flap (19) that inner hinge plate (18) is parallel with two, described inner hinge plate (18) is positioned between the two outer flaps (19) and is parallel with outer flap (19), captives joint with corner post (5) in the end of described inner hinge plate (18); Described inner hinge plate (18) is coupled to each other by ship and resell on another market (20) perpendicular to them with outer flap (19); Outer flap (19) is parallel with the curb girder (4) of platform underframe (1) and captive joint with the curb girder (4) and the end carriage (3) of platform underframe (1); Be provided with pin-and-hole (24) vertical with each flap and that each flap is connected on flap outside described (19) and the inner hinge plate (18), and be provided with the lock pin (23) with described pin-and-hole (24) corresponding matching; Described lock pin (23) is fixedly connected on an end of slide-bar (30), and the other end of slide-bar (30) passes the hole (32) on the riser (31), and riser (31) is vertical with described end carriage (3) and captive joint with end carriage (3); On described slide-bar (30), be provided with baffle plate (25) vertical with slide-bar (30) and that captive joint with slide-bar (30) and baffle plate (29), and between baffle plate (25) and baffle plate (29), be provided with the sliding hammer (28) that borehole jack by the axle center can slide along slide-bar (30) on slide-bar (30); It is characterized in that, on described sliding hammer (28), be provided with the U-shaped handle (27) of captiveing joint with it.

2, foldable box corner post locking device according to claim 1 is characterized in that, described sliding hammer (28) is the cylinder that an axle center is provided with the hole.

3, foldable box corner post locking device according to claim 1 is characterized in that, is provided with the clamp (26) that flexibly connects by rotating shaft (33) and described end carriage (3) in the appropriate location corresponding to described slide-bar (30).

4, foldable box corner post locking device according to claim 1 is characterized in that, described lock pin (23) is the rectangular pyramid pin, and cooresponding with it pin-and-hole (24) is the rectangular pyramid hole.