CN2601944Y - Improved folding case and locking device - Google Patents

Abstract

An improved collapsible box and a locking device of the collapsible box, wherein the collapsible convey box comprises two side wall plates, four fixing sheets are near each angle of the side wall plate; and two end face plates, each of the two end face wall plates has two angle alar plates. Locking filling-in sheets are meshed with the fixing sheets. The convey box further comprises at least one cover, which comprises a base plate, two side plates, two end plates and four angle plates connected with the end plate as a whole. The collapsible convey box of the whole plate also comprises a base plate having two side edges and two end edges. At least one locking filling-in sheet is formed on each angle plate, and at least one fixing sheet is formed on each of the other two angle plates, which mesh with the corresponding locking filling-in sheets when the box is being assembled. The convey box further comprises a cover plate, which connects with the top edge of one side plate opposite to a first collapsing line. The cover plate further comprises a pair of inserting plates arranged on each side. The convey box further comprises a plurality of cuttings, which are arranged along the top edges of the side plates and the corresponding top edges of the angle plates, and the opening of the box is defined, the cuttings can clip the flexible material of any thin sheets, or the materials alike.

Description

Improved collapsible box and latching device thereof

Technical field

The utility model relates to the further improvement to collapsible box or tote box, particularly relates to a kind of tote box that is used for taking up ordinary goods and fresh products.More particularly, tote box of the present utility model be make by a corrugated material plate, particularly corrugation sheet of plastic material and a kind of improved latching device is arranged so that the quick assembling of chest, and strengthen the stability and the intensity of chest.Case lid is furnished with a similar latching device, is used for assembling and enhanced stability fast.Tote box design of the present utility model is used not only out of doors, as fine, rainy day or or even snow day condition under the farmland, but also,, particularly should remain under the specific environment to keep the fresh products of its quality as the refrigeration or the refrigeration transportation of article indoor.

Background technology

Under the prior art part, known have a variety of chests or a carboard, is used for that splendid attire is stored or the article of transportation.These known chests are made by various materials, as cardboard, timber, metal and plastics.Yet all known chests all respectively have various shortcomings, as moisture immersion, expensive or too heavy.Particularly, known collapsible chest all is not suitable for all environmental conditionss, as sunny or hot environment, and humidity or wetability environment, cold or freezing environment, and the pile heavy duty of getting up.Therefore, need a kind of durable chest, can use and use under any environment of chest.Simultaneously, the necessary cost efficiency of this chest is high or economical, be easy to fold and need not use any glue, adhesive tape, nail or instrument, be easy to transport object as flat, reusable, ability in light weight, moistureproof, capable of washing and have pile to get up is with the heavy duty accumulation with the long period.This chest also should be callable.

At present, there is not chest can satisfy all these requirements.But whole plate of great majority bellows made by cardboard, waxing cardboard or plastic board, because thick plastic flagstone is not easy to fold.This chest utilizes lamination layer structure or weighting material to strengthen the side of chest, end face or case angle usually, with better support, for example, the 3rd, 310, No. 219 disclosed chests of the US Patent of Dlugopolski; Yet used latching device insufficient strength on it is not enough to using when chest in harsh and unforgiving environments condition following time, as under moist, hot, the heavy duty condition, box-board is kept together.But this new type of locking device of the present utility model can satisfy the powerful requirement that keeps and assemble fast of chest, even chest used in harsh following time of environmental conditions.

The common latching device of chest is that inserted sheet and slot are meshed, but is not locked.For example, inserted sheet and the slot that uses in No. the 3rd, 708,103, the US Patent of No. the 3rd, 310,219, the US Patent of Dlugopolski and Events.The inserted sheet of the band barb that uses in No. the 3rd, 991,932, the US Patent of No. the 4th, 463,997, the US Patent of Densen and Carmel etc.These locks are the paper board material design-calculateds for more soft flexibility.The latching device of Densen is an inserted sheet--the engagement of-slot combines with band barb inserted sheet.The inserted sheet of band barb must be crooked on the case angle, to guarantee other inserted sheet-slot ingear locking.Slower in this chest assembling, and this locking can not be used on the chest of thicker plastic material.Owing to the immersion of moisture or only owing to wearing and tearing, the inserted sheet of the engagement of inserted sheet---slot or band barb, even the intensity of its combination in Densen is with weakened.

Therefore, the purpose of this utility model provides a kind of improved, Foldable tote box of satisfying above-mentioned all requirements.

Another purpose of the present utility model is for Foldable tote box provides a kind of new type of locking device, both has been convenient to the quick assembling or the dismounting of chest, the chest that provides intensity and stability to strengthen simultaneously again.

Further purpose of the present utility model provides a kind of folding tote box, in desirable position, as both sides or all four sides, or four jiaos, have the hollow support beam, be used to strengthen support strength, thereby the chest pile is got up, and interlayer and bed course function are provided, impact to absorb.

The utility model content

According to the utility model, a kind of folding tote box comprises the die cutting plate of whole corrugated material, and described plate comprises rectangular base plate, and predetermined length and width are arranged, by two side and two end limit definition; A pair of side wall panel respectively has a folded edge, integrally is connected to the base plate side, and folding along the first indentation fold line at folded edge place, to form the sidewall of chest; Described side wall panel respectively has a cover plate to connect, and receives its top margin, relative folded edge and two end limits, the width of definition side wall panel, the height of definition chest; The pair of end plate of facing the wall and meditating integrally is connected to the end limit of base plate respectively and stretches from it, and folding along the second indentation fold line herein; The a pair of filling beam slab that is connected to each end face wallboard end limit, the described beam slab of respectively filling stretches from the described limit of holding separately of described end face wallboard, and folding along the 3rd indentation fold line at place, end face wallboard end limit, to form the hollow support beam; Wherein the first pair of locking embeds inserted sheet and is formed on desired location on the side wall panel with line of cut, and with first pair fixedly inserted sheet be meshed, each fixedly inserted sheet be formed on pre-position on the corresponding filling beam slab, so that when chest is assembled, fixing by cooresponding side wall panel by filling the support beam that beam slab forms, wherein, each locking embedding inserted sheet and its corresponding fixedly inserted sheet are with the equidirectional orientation.

On the other hand, except that first pair of locking inserted sheet and fixed plate, second pair of locking inserted sheet is formed on the desired location of described end face wallboard, and is meshed with second pair of fixed plate, and each fixed plate is formed on the desired location of filling on the beam slab.In the case, fill the support beam of beam slab formation just near corresponding end face wallboard.

Each is filled beam slab and is divided into four or five parts.In the embodiment of one five partially filled beam slab, the first pair of fixed plate be contained in the 3rd fold line in part and lock inserted sheet accordingly on side wall panel.In the embodiment of another four partially filled beam slab, it is on the end face wallboard away from the 3rd fold line and corresponding second pair of locking inserted sheet that second pair of fixed plate is contained in outermost portion in addition.Further in the embodiment, four partially filled beam slabs constitute triangle hollow angle support beams, and these parts are slightly by five equilibrium, but second in part longer.First pair of locking inserted sheet is contained on the end face wallboard, rather than on side wall panel, and first pair of fixed plate is on the third part of the 3rd fold line.

In addition, outstanding inserted sheet forms along the top margin of filling beam slab and end face wallboard, and simultaneously, the pre-determined bit on each cover plate is equipped with a pair of or two pairs of openings.Opening is face the wall and meditate plate and fill the outstanding inserted sheet of beam slab of receiving terminal respectively.

Outstanding inserted sheet also can be used as in the desired location fills the pile inserted sheet that the beam slab top margin forms at each.The function of pile inserted sheet is open in No. the 5th, 913,474, same contriver and cessionary's US Patent.In this patent, the line of weakness on the end face wallboard is equipped with notch opening or opening in pre-determined bit, passes notch opening or opening so that fill the inserted sheet of beam slab when folded sheet forms chest.Therefore, below the pile inserted sheet of chest, on end wall or sidewall beam, be meshed with the pile opening of top chest so that top chest locking is put in place, promptly above the restriction chest all directions on move.In addition, the outstanding inserted sheet in the utility model embodiment also is meshed with opening on the cover plate, so that the cover plate fixedly on the chest.

New type of locking device comprises one or more locking inserted sheets, is formed on the appropriate location of end face wallboard or side wall panel.One or more fixed plates are formed on the part of filling beam slab.Therefore, the locking inserted sheet can be extruded and insert, and keeps by the fixed plate on the hollow support beam that is formed by the filling beam slab.Embed inserted sheet when chest is assembled, with the direction location identical with fixed plate, that is, and cooresponding locking inserted sheet and fixed plate by with the intermeshing equidirectional of inserted sheet location.Embedding and the fixed plate generally appropriate location on side or end face wallboard and filling beam slab are cut into U-shaped.The length of embedding inserted sheet is longer than the fixed plate on the support beam slightly.Because the elasticity of corrugated sheet or plastic flagstone, be extruded and insert from its initial position by extruding and pass the fixed plate of removing when embedding inserted sheet, and in the time of on the crooked initial position that turns back to support beam, the fixed plate on the support beam keeps embedding the wall of inserted sheet near support beam.

And cover plate can be furnished with new type of locking device.Cover plate comprises nine blocks of plates, a top board, and two blocks of side plates, two end plates and four blocks of gussets integrally are connected to end plate or side plate.If gusset is connected to end plate, the locking inserted sheet is provided on the side plate, and vice versa.The fixed plate of latching device is formed on the gusset.

By below in conjunction with the description of the drawings, different embodiments of the present utility model is easy to be understood.

Brief Description Of Drawings

Fig. 1 is the transparent view of first embodiment of the utility model Foldable tote box, the support beam of at both ends wall is arranged and at the new-type latching device of assembling process;

Fig. 2 is the planar view of first embodiment of Foldable tote box plate of the present utility model;

Fig. 3 and Fig. 4 are transparents view, and the assembling process of the chest second optional embodiment is shown, and have at the chest end wall by filling the support beam that beam slab forms;

Fig. 5 is the planar view of the utility model second embodiment carrying boxboard;

Fig. 6 is a transparent view, and the assembling process of chest the 3rd optional embodiment is shown, and the gusseted beam is arranged, and is formed on all four jiaos of chest;

Fig. 7 is the planar view of the boxboard of the 3rd embodiment shown in Figure 6;

Fig. 8,9,10 and 11 illustrate the shape and the engagement of the embedding inserted sheet and the fixed plate of the utility model new type of locking device respectively;

Fig. 8 A, 9A, 10A and 11A illustrate the optional shape of fixed plate respectively and embed the engagement of inserted sheet and fixed plate;

Figure 12 is a planar view of being furnished with the cover plate of the new-type latching device of the utility model;

Figure 13 is the transparent view that the case lid of the new-type latching device of the utility model is housed;

Figure 14 and 15 illustrates the planar view of boxboard and the transparent view of the utility model the 4th embodiment respectively, comprises the structure similar with case lid shown in 13 to Figure 12, and the size of palette is bigger, and forms chest rather than lid;

Figure 16 A and 16B illustrate the 5th embodiment of the utility model chest, comprise two blocks of independent plates, are respectively applied for end wall and sidewall;

Figure 17 illustrates the 5th embodiment of chest assembling, only comprises end wall and sidewall and is positioned inserted sheet with direction different directions shown in the preceding figure;

Figure 18 is the block diagram of the 5th embodiment chest, and it is furnished with two case lids;

Figure 19 to 21 illustrates the optional joint of the utility model latching device inserted sheet;

Figure 22 to Figure 24 illustrates the 6th embodiment of the present utility model, and the optional use of the new-type latching device of the utility model is shown.

The specific embodiment

Fig. 1 and Fig. 2 summarize first embodiment that the utility model tote box 88 is shown.The chest 88 of the utility model first embodiment, as shown in Figure 1, comprise one at the bottom of 1, two end wall 3 and two sidewalls 2, strengthen by hollow support beam 89.On each sidewall, is furnished with locking inserted sheet 66.Each locking inserted sheet is extruded and inserts the fixed plate 77 that provides on the hollow support beam 89 that is passed in the part 15 that matches with sidewall 2.The part 15 that matches at the filling beam slab 4 that forms hollow support beam 89 is furnished with outstanding inserted sheet 23.Is furnished with outstanding inserted sheet 24 at the top margin of each sidewall 3.Be connected to each sidewall top margin 33 be cover plate 5, be formed with several openings on it, to accept outstanding inserted sheet 23 and 24.

Fig. 2 illustrates whole plate of the utility model first embodiment chest 88.This plate is whole the cross cutting and the indentation plate of corrugated material, preferred plastics corrugated material.Fig. 2 illustrates the flat board of unassembled Foldable tote box.This plate comprises base plate 1, and two end limits and two sides are arranged, the size of definition chest.Two end face wallboards are connected respectively to the end limit, and can be along first line of weakness 35 of base plate 1 folding and two side wall panel 2 be connected respectively to side, and can be folding along second line of weakness 36 of base plate 1.A pair of filling beam slab 4 is connected respectively to the side of end face wallboard 3, and can be folding along the 3rd line of weakness 34.

Each is filled beam slab 4 and is divided into different modes, for example, is divided into five parts 13,14,15,55 and 56, as shown in Figure 2.Part 15 is furnished with fixed plate 77, can match with the locking inserted sheet 66 on the side wall panel 2.Part 55 and 56 is respectively by two line of weakness 37 and 38 definition of isolated part 13,14 and 15.Two line of weakness 37 and 38 or the thickness of part 55 and 56 definition tote box hollow support beams 89, the width of the part that matches simultaneously 15 definition support beams 89.

The first couple locking inserted sheet 66 of new type of locking device is formed by the line of cut on the side wall panel 2.Locking inserted sheet 66 is parallel with the side of side wall panel 2.Each of first pair of fixed plate 77 is formed on the part 15 that matches, and when chest is assembled, to locate with the equidirectional of first stay.

Fig. 3 and Fig. 4 illustrate the chest 86 of the utility model second optional embodiment in the assembling process and the boxboard that Fig. 5 illustrates second embodiment.The first couple locking inserted sheet 68 on side wall panel 2, on end face wallboard 3, also have second pair of locking inserted sheet 67.Therefore, the second couple who is formed on the outermost portion of filling beam slab 4 sheet 76 that is locked is arranged, simultaneously in part 46 first pair of fixed plate 78 arranged.

In the present embodiment, indentation fold line 30 and 31 will be filled beam slab and will be divided into four parts 46,11,45 and 12.Part 46 is narrow parts, and the thickness of the support beam 87 that beam slab forms is filled in definition.Outermost portion 12 is the parts that match with end face wallboard 3.Therefore, outstanding inserted sheet 28 and 29 is positioned at along the appropriate location of filling beam slab and each limit of end face wallboard, and these are different with outstanding inserted sheet 23 and 24.Pair of openings 27 is positioned on the cover plate 5, and is different with the opening 21 and 22 in first embodiment.Opening 27 sizes are bigger, thereby when chest is assembled, accept two inserted sheets 28 and 29, as shown in Figure 3 and Figure 4.

In Fig. 6 and the utility model the 3rd embodiment shown in Figure 7, the hollow support beam is a triangle pillar 85, is each positioned on the angle of chest.Chest 84 has most of plate similar to the chest 89 of first embodiment, except difform support beam.Outstanding inserted sheet 23 and 24, also similar with cover plate 5 openings 21 and 22 position in first embodiment those, referring to Fig. 6.

Yet the filling beam slab is different with the filling beam slab of first embodiment.Form the filling beam slab of triangular support beam 85,, be divided into four approximate parts 16,17,18 and 19 of width by indentation fold line 32,39 and 40.Second in part 17 wideer than other parts, to form the oblique side of triangular beam.Fixed plate 79 fits on the third part of the 3rd fold line 34.Locking inserted sheet 69 is formed on the end face wallboard, and is similar to the locking inserted sheet 67 of second embodiment.

All above-mentioned three embodiments all comprise single-piece cover plate 5, thereby have got rid of the use of independent case lid.Therefore, these embodiments and U.S. serial the 09/150th, 402 in the disclosed difference of first to file, it needs independent case lid.More than first and second embodiments hollow support beam is shown along the sidewall of chest or the possible position of end wall, so can select suitable chest, to hold for load-bearing or to prevent that the impact of different directions from having the various article of specific (special) requirements.Similarly, the 3rd embodiment can provide the protection of whole directions, absorbs as the prevention pile with at the case angle and impacts.

The cross cutting of the utility model tote box and indentation plate are made by corrugation plastic flagstone of cross cutting, it has smooth surface on both sides, to obtain base plate, end face wallboard, side wall panel and filling beam slab or gusset, and obtain the locking inserted sheet and the fixed plate of the new type of locking device of above-mentioned all line of weakness and above-mentioned explanation in the desired location.As be ready that some cross cuttings handle socket and breather port can be arranged.

As Fig. 2, Fig. 5 and shown in Figure 7, there is groove 25 to be formed on and fills between beam slab and the side wall panel.Be equipped with this groove, fill the assembling that beam slab forms the hollow support beam and is convenient to chest so that fold, because plate has certain thickness.In some cases, when observing from the side of support beam 89,87 and 85, the ripple of corrugated sheet when chest is assembled by perpendicular positioning.Serial number the 09/150th, 402 in first to file, each end face wallboard is upwards folding, and has hinge parts to be folded on the hollow beam, makes beam be surrounded near end wall portion by hinge parts.The top that this part is placed on support beam provides a broad and stable stayed surface.When hinge parts was closed to hollow beam, the locking inserted sheet was extruded and inserts near the fixed plate on the beam, so that fixed plate fall home and embedding inserted sheet insert in the hollow beam.Because elasticity, in case unclamp extruding, its initial position is gone back in the inserted sheet bending, that is, the surface separately of inner beam partial sum hinge parts flashes across.

In embodiment of the present utility model, the locking inserted sheet is formed directly on end face wallboard or the side wall panel.Hinge parts at the end face wallboard of first to file is removed.Powerful support still can obtain by hollow beam and being connected of cover plate.

Shown in Fig. 8-11, locking inserted sheet 66 is done slightly longlyer than fixed plate 77, and fixed plate 77 is slightly wideer than embedding inserted sheet.Therefore, when embed inserted sheet 66 pass corresponding fixed plate 77 and enter in each empty beam the time, each embeds inserted sheet 66 sheet 77 that is fixed and keeps near the appropriate section of filling beam slab.The engagement of other all locking inserted sheets and fixed plate is all identical with the engagement of locking inserted sheet 66 and fixed plate 77, just in different positions.

Be appreciated that locking inserted sheet and fixed plate can be formed on support beam or fill any suitable position on the suitable part of beam slab, see various embodiment of the present utility model.Therefore, it must be different near the inserted sheet-groove and the inserted sheet-inserted sheet engagement at case angle with traditional.The utility model latching device, form and point to identical inserted sheet, and the inserted sheet of broad can keep long inserted sheet as long as two boards can have corresponding part to be cut and cut applicable to the connection of any two blocks of parallel plates.Details is seen shown in Fig. 8-11.

Be appreciated that handle socket can make by cross cutting.Handle socket is usually located at and is suitable for portable position on the end face wallboard and sometimes, is filling between the support beam that beam slab forms.Other holes can be made in the cross cutting process, to satisfy the needs not of the same race of transport fresh produce or storage marine product.

Fig. 8 illustrates the locking inserted sheet 66 of the utility model new type of locking device.Fixed plate 77 illustrates at Fig. 9.As shown in the figure, fixed plate 77 is wideer than locking inserted sheet 66, and embeds inserted sheet 66 than fixed plate 77 length.Embed inserted sheet 66 and fixed plate 77 and cut U type shape,, be respectively formed on sidewall or the end face wallboard and on padding girder in the desired location by cutting.Usually, they are by predetermined U type line of cut definition, and with the surface of plate separately in same plane.Figure 10 and Figure 11 illustrate this ingear lateral plan and planar view.Be appreciated that owing to the oppositely engagement of stay, new type of locking device can closely keep the stack-mounted chest in predetermined shape.Anything unexpected all is not easy to make stay to throw off.Inserted sheet must squeeze in the hollow beam and with hand and pull out with the opposite sense that embeds.

Fig. 8 A, 9A, 10A and 11A illustrate the optional engagement of locking and fixed plate.Fixed plate 77 is done slightly shortly, so that slot 79 is made the embedding of being convenient to stay 66.Shown in Figure 10 A, short fixed plate 77 is given lower profile, is used to lock the engagement with fixed plate.

Further, locking inserted sheet 66 and fixed plate 77 turn back to its initial position when chest is unassembled.Each inserted sheet will show U type line of cut again.These lockings and fixedly form the plate of integraty separately.Thereby they are not easy to be twisted.Therefore, have the Foldable tote box of new type of locking device of the present utility model, can be repeated to use repeatedly.Be appreciated that this latching device can be used in various chests, rather than must be used in the chest of corrugation plastic material.But latching device can play better effect in the chest of plastic material or corrugated material.Use precise design, fixed plate 77 can be done slightly widelyer and embed inserted sheet 66 and do slightly longlyer than fixed plate 77 than embedding inserted sheet 66, so that guarantee its engagement closely.

In addition, the case lid part can be furnished with identical new type of locking device.Shown in Figure 12 and 13, case lid is made up of nine blocks of plates, comprises 6, two blocks of side plates 7 of top board, two end plates 8, and four blocks of gussets 83, and integral body is connected to end plate or side plate.Fixed plate 77 ' fit on the gusset 83.Locking inserted sheet 66 ' fit on the side plate 7, if gusset 83 is connected on the end plate 8.The locking inserted sheet 66 of lid ' can fit on the end plate 8 of lid, if gusset is connected on the side plate 7 of lid.Figure 13 illustrates stack-mounted lid 82, and the ingear inserted sheet points to the end wall of case lid 82.

The 4th embodiment of case and plate illustrates with Figure 14 and 15 respectively.Locking inserted sheet 66 " with fixed plate 77 " is different with the orientation of the inserted sheet of Figure 13 with 15 orientation at Figure 14.They turn over turnback from the direction of the sensing end wall of Figure 13, to the direction of pointing to away from end wall, as shown in figure 15.Figure 14 and Figure 15 chest, each plate are just dimensionally greater than the cover plate of Figure 12 and 13.Inserted sheet points to can make the assembling and the easy disassembling of chest away from the location of end face wallboard direction, and still plate can be kept together.The 4th embodiment illustrates, if the size of side plate and end plate is amplified, does not have the folding chest of hollow support beam to make by using new type of locking device.

Figure 16 A and 16B illustrate the use of new type of locking device on two separate board of the chest 100 that is used for the utility model the 5th embodiment.Side wall panel 105 has four fixed plates (or locking inserted sheet) 104 and end face wallboard 101 that two blocks of angle folding wing plates 102 are arranged.Gusset 102 has two cooresponding locking inserted sheets (or fixed plate) 103.Figure 17 illustrates the chest of the 5th embodiment, uses the side wall panel of two Figure 16 A and the end face wallboard of two Figure 16 B.The location of inserted sheet is different with Figure 13 lid, but identical with the chest of Figure 15.This makes several piece plate chest that stable structure can be arranged.Locking and fixed plate also can be positioned, and as shown in figure 18, wherein inserted sheet turn 90 degrees, and leaves direction shown in Figure 17.Figure 18 also illustrates the chest 100 of the utility model the 5th embodiment, and the lid of two Figure 12 and Figure 13 is housed.

In addition, Figure 19 to Figure 21 illustrates optional locking inserted sheet 66, and is narrow more a lot of than fixed plate 77.Narrower embedding inserted sheet 66 can help convenient the insertion.In the case, ingear inserted sheet 66 and 77 closes maintenance possibility undercapacity.Therefore, locking inserted sheet 66 can be made with rolling up part 66A, promptly with the head part of barb.Band barb and part 66A have its top margin 66B, less than the top margin 77B of fixed plate part 77A.

Figure 22 to Figure 24 illustrates the 6th embodiment of the present utility model.It is different with any previous embodiments, but has used identical latching device.The plate that Figure 22 illustrates different size can constitute different chests, to meet the different needs.In Figure 23 and scheme shown in Figure 24, chest can be used as rubbish container, or is used to reclaim the purpose collection box that article are thought environmental protection, or makes things convenient for case.As shown, one or two locking or fixed plate 97 and 98 are arranged on each gusset.During assembling, gusset 94 and 96 lumps together the end wall that forms chest, and simultaneously, end face wallboard 95 folds in inlet as brace panel.The cover plate 92 of band plate 93 folds, and removes to cover the opening of chest.Yes for cover plate 92 optionally.A plurality of otch 10 of preparation can be with the thin slice of any flexible material, as, the otch of any hope is clamped or is clamped at plastic sheet or sack edge, so that sack is remained on that.For example, chest can keep one, two or even more sack be used for different recovery article.Under any circumstance, do not need to use any instrument, adhesive tape, glue, nail to assemble this tote box.

Above-mentioned case lid and the 4th, the 5th and the 6th embodiment show that further this two inserted sheets locking can be provided on any surface or position of wanting on connected any two boards.Therefore, this locked position can be on side or end plate and corresponding gusset.Locked position also can be in independent being with or without on the plate of filling beam slab, as shown in FIG..

The principal feature of the utility model chest more than has been described.Chest of the present utility model has higher characteristic than conventional box aspect stable support.Whole plate makes plank be easy to deposit before the assembled use of chest.The durability of corrugation plastic material provides wet, capable of washing, the reusable characteristic of moisture resistance and has born heavy duty ability for the utility model chest.Chest of the present utility model can not only be used for the open air in rainy day or snow sky, and can be used for the refrigeration or the refrigeration transportation of food, particularly fresh products, meat or marine product, to keep the quality of fresh products.

In addition, the strong support beam of strong plastic material and chest can protect fresh products in the chest not to be subjected to the extruding of external force.The hollow support beam, or at the chest end wall, or, can be used as bed course in its four side, with any impact on the absorption chest, or to sunlight heat or any cold interlayer.

This new type of locking device can help chest fast, assembling smoothly, and stable locking is provided for the stack-mounted chest.The smooth appearance of the utility model stay can give boxboard better integraty.

Be appreciated that, cut the chest of cutting of the present utility model with above-mentioned variety of way, can use any proper method assembling, as using adhesive tape, glue etc., replace locking and fixed plate, or sidewall or end face wallboard or angle or fill beam slab or or even base plate on any suitable position.These substitute also still aforesaid, at least nine blocks of plates, having the gusset of the formation hollow beam relevant with specific line of weakness, whole boxboard within the scope of the present utility model.

Claims (8)

1. one kind is used for latching device that two boards is linked together, it is characterized in that, described latching device comprises a locking inserted sheet that cuts out with the line of cut form on a described plate, with a fixed plate that on described other another piece plate, cuts out with the line of cut form, described locking inserted sheet can intermesh with fixed plate and be connected described two boards, wherein, described locking inserted sheet and described fixed plate are with the engagement of equidirectional location, described locking inserted sheet is longer than described fixed plate, and described fixed plate is wideer than described locking inserted sheet, thereby described locking inserted sheet was inserted the opening that the surface of described fixed plate and described plate occurs, and described fixed plate keeps and pins described locking inserted sheet.

2. latching device as claimed in claim 1 is characterized in that, at described narrower locking inserted sheet the head of being with barb is arranged, and is hooked on the described fixed plate.

3. latching device as claimed in claim 1 is characterized in that described fixed plate is short U-shaped, forms a groove in the front, top of described fixed plate, is convenient to the insertion of described locking inserted sheet.

4. collapsible box that has the latching device of claim 1, it is characterized in that comprising two side wall panel, four fixed plates each angle near described plate is respectively arranged, with two end face wallboards, two blocks of angle blade plates are respectively arranged, be formed with two locking inserted sheets on it, be meshed with described fixed plate on the respective side wallboard.

5. collapsible box as claimed in claim 4, it is characterized in that further comprising at least one lid, it comprises a base plate, two blocks of side plates, two end plates, with four blocks of gussets that integrally are connected to described end plate, described be stamped locking inserted sheet on the described side plate and fixed plate be formed on the described gusset, in the described chest that is folded to form, described locking inserted sheet was inserted described fixed plate, and was kept by described fixed plate.

6. the collapsible box of one kind whole the latching device that has claim 1, it is held to levy and is to comprise a base plate that dual-side and limit, two ends are arranged, two blocks of side plates, be connected to the side of described base plate respectively along the first indentation fold line, two end plates, be connected to described base plate along the second indentation fold line respectively, with four blocks of gussets, be connected to the side of described side plate respectively along the 3rd indentation fold line, two of described gusset respectively have at least one locking inserted sheet to form thereon, respectively have at least one fixed plate to form thereon with other two of described gusset, said fixed plate with lock the inserted sheet formation chest that is meshed accordingly.

7. collapsible box as claimed in claim 6 is characterized in that further comprising cover plate, is connected to the top margin of a described side plate, and described relatively first fold line, described cover plate comprise that further a pair of plate is at its each side.

8. but case as claimed in claim 6, it is characterized in that further comprising several otch, along the top margin of described side plate and the corresponding top margin of described gusset, it defines the opening of described chest, described otch can be clamped the flexible material of any thin slice, or suchlike article.

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