CN110027785B - Bottom support and packing box - Google Patents

Abstract

The application provides a collet and packing box, this collet includes that at least one set of shakes and covers the subassembly, each set of shake cover the subassembly including overlapping two of setting and shake the lid body and be used for connecting two at least a set of buckle subassemblies that shake the lid body mutually, buckle subassembly includes draw-in groove and buckles the tongue of inserting of draw-in groove, the draw-in groove is for running through the cell body that a set of first shake of shaking in the lid subassembly covers body thickness, it shakes the lid body outstanding from a set of second that shakes in the lid subassembly to insert the tongue, and the projection that the outline line that at least some inserted the tongue was covered in the first projection that shakes is located the draw-in groove. In above-mentioned collet, only need to insert the outline line of tongue and can realize the draw-in groove and insert the buckle connection of tongue towards the direction extrusion of draw-in groove in detaining the draw-in groove, the machine-shaping process is comparatively simple, and efficiency is higher, and above-mentioned collet only need through the material of rocking cover body self, need not to increase other connection structure and just can realize the machine-shaping of collet, and the single recycle of being convenient for of collet overall material moreover, and the cost of manufacture is lower.

Description

Bottom support and packing box

Technical Field

The embodiment of the application relates to the technical field of packaging, and especially relates to a bottom support and a packaging box.

Background

In the technical field of packaging, an outer packaging box is used for protecting products in the processes of moving, carrying and the like, and for liquid crystal products and electronic products, particularly large-size products of large-screen projects, the outer packaging box is generally in a corrugated box shape with a top cover and a bottom cover.

It is terminal to cover corrugated box including detachable case and collet, present collet most is by one or two or more corrugated paper, make required shape through certain connected mode, the shaping mode of collet on the existing market adopts the nailing mostly, the viscose, modes such as buckle, but increase the fixed connection mode of metal nail or binder on the corrugated paper, machining efficiency is lower on the one hand, on the other hand adopts many material combinations to be unfavorable for packaging material's decomposition to retrieve, the cost is higher, and the buckle shaping is difficult for realizing, card income in-process corrugated paper bellied tongue piece and draw-in groove are not well counterpointed when the clearance is less, easily lead to the corrugated paper layering, flute collet both sides face receives the rebound effort effect and easily rises and rises when the clearance is great to the card income clearance, it is inconvenient to embolia the incasement to the collet, thereby influence production efficiency and manufacturing cost.

Disclosure of Invention

The application provides a collet and packing box for improve the problem that collet machining efficiency is low and the cost of manufacture is high.

In a first aspect, the present application provides a bottom support, the bottom support comprises two sets of rocking cover assemblies, the two sets of rocking cover assemblies are arranged on two sides of the bottom support, each set of rocking cover assembly comprises two rocking cover bodies, the two rocking cover bodies are overlapped, in order to realize the fixed connection of the two rocking cover bodies, each set of rocking cover assembly further comprises at least one set of buckle assembly, the buckle assembly is arranged on the two rocking cover bodies and is used for connecting the two rocking cover bodies, when the rocking cover assembly is specifically arranged, the buckle assembly comprises a clamping groove and an inserting tongue buckled into the clamping groove, the clamping groove is arranged on a first rocking cover body in one set of rocking cover assembly, the inserting tongue is arranged on a second rocking cover body in the set of rocking cover assembly, the clamping groove is specifically a groove body penetrating through the thickness of the rocking cover body where the inserting tongue is arranged, the inserting tongue is arranged opposite to the clamping groove, and the inserting tongue protrudes from the rocking cover body where the inserting tongue is arranged, the outstanding direction is towards the draw-in groove, and in order to guarantee the stability of buckle connection, the size of tongue is slightly greater than the size of draw-in groove, and the projection of a part of contour line of tongue on first rocking cover body is located the outside of draw-in groove. In above-mentioned collet, only need to insert the outline line of tongue and can realize the draw-in groove and insert the buckle connection of tongue towards the direction extrusion of draw-in groove in detaining the draw-in groove, the machine-shaping process is comparatively simple, and efficiency is higher, and above-mentioned collet only need through the material of rocking cover body self, need not to increase other connection structure and just can realize the machine-shaping of collet, and the single recycle of being convenient for of collet overall material moreover, and the cost of manufacture is lower.

In a specific embodiment, in order to facilitate the insertion tongue to be buckled into the clamping groove, a partial cutting line is preset on the insertion tongue, and the projection of the partial cutting line on the first rocking cover body is limited to be positioned on the inner side of the clamping groove, so that the insertion tongue with a size slightly larger than the clamping groove can be buckled into the clamping groove conveniently.

In a specific embodiment, in order to prevent the snap connection from being disconnected, one end of the insert tongue is connected with the first rocking cover body, the connection part is provided with an oblique angle, the oblique angle is limited to face the outer part of the insert tongue, and the insert tongue can be prevented from being separated from the clamping groove through the oblique angle, so that the tripping phenomenon is avoided.

In a particular embodiment, the direction of projection of the tongues is the same in each set of rocker assemblies, so as to facilitate the formation of the tongues and the formation of the mounting.

In a specific embodiment, the protruding directions of the inserting tongues of the two groups of the rocking cover assemblies are opposite, so that the acting forces of the buckling connection are opposite, the uniform stress of the bottom support is ensured, and the stability of the bottom support is improved.

In a specific embodiment, in order to improve the stability of the connection between the insertion tongue and the clamping groove, at least two sets of fastening components are provided in each set of shake cover component, wherein the insertion tongue of one set of fastening components and the clamping groove of the other set of fastening components are provided on the first shake cover body in each set of shake cover component, and the clamping groove of one set of fastening components and the insertion tongue of the other set of fastening components are provided on the second shake cover body in each set of shake cover component. The buckling directions of the inserting tongues buckled into the slots in the same rocking cover component are different, and the reliability of buckling connection is ensured by arranging the bidirectional buckling components in one group of rocking cover components.

In a specific embodiment, in two sets of shake and cover the subassembly, a set of shake the draw-in groove on the subassembly with another set shake the draw-in groove on the subassembly symmetrical to make the effort that the buckle is connected distribute evenly, guarantee that the collet atress is even, improve the stability of collet.

In a specific embodiment, the number of the buckle components is at least three, and the buckle components are arranged in a triangular mode, so that the stress of each group of the rocking cover components is uniform, and the stability of the bottom support is improved.

In a specific embodiment, in order to improve the stability of the snap connection, the clamping grooves of each set of snap components at least comprise a first clamping groove and a second clamping groove; one of the insertion tongues is embedded in the first clamping groove and the second clamping groove. The inserting tongue is buckled into one clamping groove and then reversely inserted into the other clamping groove, so that the buckling connection is firmer and more reliable.

In a specific embodiment, in order to facilitate the buckling of one insertion tongue into two clamping grooves, a first insertion tongue portion and a second insertion tongue portion are arranged on the insertion tongue, the first insertion tongue portion is buckled into the first clamping groove, the second insertion tongue portion is buckled into the second clamping groove, the width of the first insertion tongue portion matched with the first clamping groove is not larger than the width of the second insertion tongue portion matched with the second clamping groove, and at least one part of the projection of the contour line of the second insertion tongue portion on the first rocking cover body is positioned on the outer side of the second clamping groove so as to ensure the stability of the buckling connection.

In a specific embodiment, in order to prevent the snap connection from being disengaged, the joint of the first tongue insertion portion and the second tongue insertion portion has a chamfer facing the outer portion of the first tongue insertion portion, and the second tongue insertion portion can be prevented from being disengaged from the second slot by the chamfer, so that the disengagement phenomenon is avoided.

In a second aspect, an embodiment of the present application further provides a packaging box, which includes an upper box, and further includes the bottom support according to any one of the above technical solutions, the upper box is disposed outside the bottom support, and the cover shaking assembly is located inside the upper box. Because only need to insert the outline line of tongue and can realize the machine-shaping of collet towards the direction extrusion of draw-in groove in detaining the draw-in groove, the process is comparatively simple, and efficiency is higher to the draw-in groove all with insert the tongue through the material preparation of rocking lid body self, collet monolithic material is single to be convenient for recycle, and the cost of manufacture is lower, consequently, the shaping process of the packing box that has this collet is comparatively simple, and machining efficiency is higher, has the advantage of cost of manufacture.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be briefly described below.

Fig. 1 is a schematic structural diagram of a packaging box provided in the prior art;

FIG. 2 is a bottom bracket provided in the prior art;

FIG. 3 is another collet provided by the prior art;

FIG. 4 is an expanded view of yet another prior art base;

fig. 5 is a schematic structural diagram of a packaging box according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a shoe according to an embodiment of the present application;

FIG. 7 is an expanded view of the shoe of FIG. 6 provided by an embodiment of the present application;

FIG. 8 is a schematic diagram of the forming of the shoe of FIG. 6 provided by an embodiment of the present application;

FIG. 9 is an enlarged schematic view of position A in FIG. 5 according to an embodiment of the present disclosure;

FIG. 10 is a side view taken along direction B of FIG. 8 according to an exemplary embodiment of the present disclosure;

fig. 11 is a schematic structural diagram of another shoe provided in the embodiments of the present application;

fig. 12 is a schematic structural diagram of a shoe according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of another shoe provided in the embodiment of the present application;

FIG. 14 is an expanded view of another shoe provided by embodiments of the present application;

FIG. 15 is a partial schematic view of another alternative shoe provided by an embodiment of the present application;

FIG. 16 is a schematic structural diagram taken along direction C in FIG. 15 according to an exemplary embodiment of the present disclosure;

fig. 17 is a schematic structural view of the tongue shown in fig. 15 according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

The technical background of the embodiments of the present application is described below.

In order to facilitate understanding of the bottom support and the packing box provided in the embodiments of the present application, first, a packing box is described, which refers to a top-bottom cover corrugated box type packing structure, as shown in fig. 1, when a large-sized (high-height) product is loaded, the packing box is made into two parts which can be separated to facilitate opening the box and taking the product, an upper box 100 located inside the packing box is made into two parts which can be separated, and a bottom support 200 sleeved inside the upper box 100 is made into a bottom support 200 for carrying, the bottom support 200 is low in height, and the bottom support 200 is generally in a structure form of a top opening surrounded by five surfaces, and is combined with the upper box 100 (the bottom support 200 is generally sleeved inside the upper box 100) to form a complete top-. The buckle component mentioned in the embodiment of the application comprises a protruding part (such as a tongue edge or an inserting tongue) and a corresponding clamping groove (such as a groove or a hole), the buckle connection is that the protruding part is clamped into the groove or the hole so as to connect, form and fix the corrugated boards of the movable part and the other parts of the corrugated boards, the rocking cover is that the corrugated boards outside three parallel side surfaces extend out when the bottom support is unfolded, the inner rocking cover is one of two overlapped rocking covers close to the inner part of the bottom support, and the outer rocking cover is one of two overlapped rocking covers far away from the inner part of the bottom support.

As shown in figure 1, the packing box includes upper box 100 and collet 200, collet 200 embolias the inside of upper box 100, the connected mode of a plurality of corrugated container boards of collet 200 has multiple choices at present, as shown in figure 2, collet 210 is through shaking the coincidence overlap joint nailing shaping of lid 211 and interior lid 212 outward, as shown in figure 3, collet 220 is through shaking the coincidence overlap joint sticking shaping of lid 221 and interior lid 222 outward, but adopt these two kinds of connected modes on the one hand machining efficiency lower, on the other hand adopt many material combinations to be unfavorable for the decomposition recovery of packaging material, the cost is higher. As shown in fig. 4, the insertion tongue 520 is inserted into the slot 510 to form a snap connection when the bottom support 230 is formed, but the insertion direction of the insertion tongue 520 is consistent with the corrugated direction or the vertical direction of the corrugated direction, so that the snap formation is not easy to realize. In order to solve the problems of low processing efficiency and high manufacturing cost of the existing bottom support, the embodiment of the application changes the position of the inserting tongue and the inserting direction of the inserting tongue in the buckle connection.

As shown in fig. 5, 6 and 7, fig. 5 shows the structure of the bottom bracket 240 after being formed, fig. 6 shows a schematic structural view of the bottom bracket 240, fig. 7 shows the structure of the bottom bracket 240 after being unfolded, and an opening at one end of the bottom bracket 240 provided by the embodiment of the present application includes four rocking cover bodies, wherein a first rocking cover body 241 and a second rocking cover body 242 are stacked to form one rocking cover assembly, a third rocking cover body 243 and a fourth rocking cover body 244 are stacked to form another rocking cover assembly, two rocking cover assemblies form two oppositely disposed side surfaces and together with a bottom surface 245, side surfaces 246 and side surfaces 247 form the bottom bracket 240 with an opening at one end, in order to realize the fixed connection of the first rocking cover body 241 and the second rocking cover body 242, the rocking cover assembly further includes at least one set of snap assemblies 600, the number of the snap assemblies 600 may be one set, two sets or more sets, the snap assemblies 600 include a snap groove 610 and a tongue 620 snapped into the snap groove 610, the buckle assembly 600 is respectively arranged on the two rocking cover bodies, when in specific arrangement, the clamping groove 610 is arranged on the first rocking cover body 241, the inserting tongue 620 is arranged on the second rocking cover body 242, of course, the clamping groove 610 can also be arranged on the second rocking cover body 242, the inserting tongue 620 is arranged on the first rocking cover body 241, the specific structure of the clamping groove 610 is a groove body penetrating the thickness of the first rocking cover body 241, the clamping groove 610 is a closed groove body and can be directly positioned in the surface of the first rocking cover body 241 or can be started from one end of the first rocking cover body 241 connected with the side surface 246, the inserting tongue 620 is arranged opposite to the clamping groove 610, the inserting tongue 620 protrudes from the second rocking cover body 242 where the inserting tongue 620 is positioned, the protruding direction is towards the clamping groove 610, in order to ensure the stability of the buckle connection, the size of the inserting tongue 620 is slightly larger than that of the size of the clamping groove 610, so that when the inserting tongue 620 is buckled into the clamping groove 610, the projection of a part of the contour line of the inserting tongue 620 on one cover body is positioned outside the, at this time, the tongue 620 and the groove 610 are not easily disengaged. Of course, the connection between the third rocking cover body 243 and the fourth rocking cover body 244 may adopt another set of snap components, and the connection principle and the arrangement mode thereof are similar to the snap components 600 for connecting the third rocking cover body 243 and the fourth rocking cover body 244, and thus the description thereof is omitted.

Continuing to refer to fig. 7, fig. 7 shows a housing for preparing the bottom support 240, and referring to fig. 8 together, fig. 8 shows a forming process of the bottom support 240, the housing shown in fig. 7 is formed on a corrugated board, and the insertion tongue 620 is punched and cut inside the second rocking cover body 242 in advance, at this time, the insertion tongue 620 is not separated from the second rocking cover body 242, the two are still a whole, then all surfaces are folded together along a creasing line, then, only a finger needs to press the insertion tongue 620 outwards along the direction F, the contour line of the insertion tongue 620 is extruded out of the clamping groove 610 along the direction F, so that the clamping connection of the clamping groove 610 and the insertion tongue 620 can be realized by clamping the insertion tongue 620 in the clamping groove 610, and the processing and forming process is simple. Referring to fig. 4 together, fig. 4 shows the expanded state of the bottom bracket in the prior art, a plurality of buckle assemblies 500 are added at the overlapped joint of the outer rocking cover 221 and the inner rocking cover 222, each buckle assembly 500 comprises a clamping groove 510 on the inner rocking cover 231 and a tongue 520 on the outer rocking cover 232, when the bottom bracket 220 is formed, the surfaces are firstly folded together, then the tongue 520 is turned over relative to the outer rocking cover 232, and the tongue 520 is pressed along the corrugation direction or the corrugation direction to insert the tongue 520 into the clamping groove 510 to form the buckle connection, the buckle connection mode provided by the embodiment of the application is different from that in the prior art, on one hand, the position of the tongue is different, the tongue 620 in the embodiment of the application is punched and cut from the inside of the second rocking cover body 242, and the tongue 520 in the prior art is located at the end of the outer rocking cover 232; on the other hand, the forming process of the bottom support is different, in the embodiment of the present application, the first shaking cover body 241 and the second shaking cover body 242 are stacked together, and then the inserting tongue 620 is pressed outwards forcibly along the F direction to realize the snap connection, whereas in the prior art, the first shaking cover body 241 and the second shaking cover body 242 are stacked together, and then the inserting tongue 520 is pressed along the vertical direction of the corrugation direction or the corrugation direction to realize the snap connection. Because the insertion direction of the insertion tongue 620 in the bottom support 240 provided by the embodiment of the application is not the corrugation direction or the vertical direction of the corrugation direction, the hidden danger of corrugation layering does not exist, the action does not need to be accurately matched, and the operation is easy to complete. And because the four-sided outline of large-area inserting tongue 620 enters into the clamping groove 610, the inserting tongue 620 can be inserted into the clamping groove 610 without accurate matching, the blind insertion effect that only fingers are used for extruding and buckling without the need of looking by eyes is realized, and meanwhile, because the forming process of the bottom support 240 is simpler, the automatic forming auxiliary equipment can be adopted for processing, and the processing efficiency is high. And above-mentioned collet 240 only need through the material of shaking lid body self, need not to increase other connection structure and just can realize the machine-shaping of collet 240, and collet 240 single recycle of being convenient for of overall material is lower in the cost of manufacture moreover.

Referring to fig. 9 and 10 together, fig. 9 shows a specific structure of a tongue, fig. 10 shows a schematic view of a snap-fit connection between the tongue and a slot, a local cutting line 630 is preset on the tongue 621, since the tongue 621 is slightly larger than the inner width of the slot 611, when the tongue is formed, a finger presses the tongue 621, the tongue 621 deforms through the local cutting line 630 to conveniently enter the slot 611, so as to avoid interference when the tongue 621 is inserted into the slot 611, and the projection of the local cutting line 630 on the second rocking cover body 242 is limited to be located on the inner side of the slot 611, so that the tongue 621 can be snapped on the slot 611 after penetrating out of the slot 611, so that the tongue 621 and the slot 611 are tightly and firmly matched, and further, the connection between the tongue 621 and the slot 611 is stable, a situation that a bottom base is bulged and difficult to be sleeved in the upper case due to a large snap-fit gap does not occur, and the molded tongue 621 is firm, the structural stability of collet is better.

Continuing to refer to fig. 9 and 10, fig. 9 shows a specific structure of a tongue, fig. 10 shows a schematic view of a snap-fit connection between the tongue and a slot, one end of the tongue 621 is connected to the second rocking cover body 242, the other end protrudes out of the second rocking cover body 242, when specifically configured, a bevel 640 is formed at a connection position of the tongue 621 and the second rocking cover body 242, and a tilt direction of the bevel 640 is defined to face an outer portion of the tongue 621, when in processing and molding, a finger presses the tongue 621, the tongue 621 can conveniently enter the slot 611 through the bevel 640, the tongue 621 passes through the slot 611 and is snapped on the slot 611 by the bevel 640, and since the tilt direction of the bevel 640 faces the outer portion of the tongue 621, the tongue 621 is not easily separated from the slot 611 after the tongue 621 is snap-fit connected to the slot 611, thereby avoiding a release phenomenon, and enabling a connection stability between the tongue 621 and the slot 611 to be good, thereby making the structural stability of the bottom support better.

With continuing reference to fig. 6, 8 and 10, fig. 6 shows the protruding direction of the insertion tongue on the same rocking cover body, fig. 8 shows the force-bearing direction of the insertion tongue on the same rocking cover body, fig. 9 shows the structural schematic of the insertion tongue on the same rocking cover body, in the rocking cover assembly composed of the first rocking cover body 241 and the second rocking cover body 242, the protruding directions of the two insertion tongues 621 are the same and both face the outer side of the bottom base 240, in the rocking cover assembly composed of the third rocking cover body 243 and the fourth rocking cover body 244, the protruding directions of the two insertion tongues 622 are the same and both face the outer side of the bottom base 240, the same protruding direction of the insertion tongue on the same rocking cover body can facilitate the manufacturing of the insertion tongue, and the process forming process of the bottom base 240 is faster. Referring also to fig. 11, fig. 11 shows one form of the direction of projection of the tongues of the two sets of rocking cover assemblies, two tongues 623 each projecting inwardly from the fourth rocking cover body 244 and two tongues 624 each projecting inwardly from the first rocking cover body 241, in such a way that the tongues project inwardly towards the inside of the shoe 240, so that the outer surface of the shoe 240 is free of protrusions, allowing the shoe 240 to easily nest within the upper box 100. On the contrary, as shown in fig. 6, the inserting tongues 621 protrude outward from the second rocking cover body 242, and the inserting tongues 622 protrude outward from the third rocking cover body 243, and by adopting the protruding manner, the protruding directions of the inserting tongues all face the outside of the bottom support 240, so that the inner surface of the bottom support 240 is flat, and is convenient for accommodating components such as a liquid crystal display, and meanwhile, as shown in fig. 8, the protruding manner can facilitate the buckling connection between the inserting tongues and the slots. And the protruding direction of the tongue of inserting of two sets of rocking cover subassemblies is opposite, can make the effort opposite direction of buckle connection, guarantees that the atress of collet 240 is even, improves collet 240's stability. While there are other forms of the direction of projection of the insert tongue, as shown in FIG. 12, FIG. 12 shows another form of the direction of projection of the insert tongue in two sets of the rocking cover assemblies, with insert tongue 624 projecting inwardly from the first rocking cover body 241 and insert tongue 622 projecting outwardly from the third rocking cover body 243. As shown in FIG. 13, FIG. 12 shows yet another pattern of the direction of projection of the insert tongues in the two sets of rocking cover assemblies, insert tongue 623 projecting inwardly from fourth rocking cover body 244 and insert tongue 621 projecting outwardly from second rocking cover body 242.

In order to improve the stability of the connection between the latch tongue and the latch groove, referring to fig. 14 together, fig. 14 shows another arrangement of the latch tongue and the latch groove, each set of the rocking cover assembly has at least two sets of the latch tongue assemblies, in the rocking cover assembly composed of the first rocking cover body 241 and the second rocking cover body 242, the latch groove 611 of the latch connection is arranged on the first rocking cover body 241, the latch tongue 621 is arranged on the second rocking cover body 242, the latch groove 615 of the latch connection is arranged on the second rocking cover body 242, the latch tongue 625 is arranged on the first rocking cover body 241, in the rocking cover assembly composed of the third rocking cover body 243 and the fourth rocking cover body 244, the latch groove 611 of the latch connection is arranged on the fourth rocking cover body 244, the latch tongue 622 is arranged on the third rocking cover body 243, the latch tongue 616 is arranged on the third rocking cover body 243, the latch tongue 626 is arranged on the fourth rocking cover body 244, that the latch tongue is latched into the slot in the same rocking cover assembly, the latch tongue and the latch groove are in different directions, the acting force of the snap connection is opposite, so that the connection between the rocking cover assemblies is firmer. Therefore, through the buckle assembly which is arranged in the cover shaking assembly in the two directions, the reliability of buckle connection can be ensured when the size of the bottom support is larger and the bounce force of the cover shaking is larger. With continued reference to fig. 14, the number of the snap-fit components on each rocking cover component is at least three, and the three snap-fit slots or the snap-fit slots and the tongue-shaped insertion tongue are arranged in a triangular shape, so as to ensure that each group of rocking cover components is stressed uniformly and improve the stability of the bottom support. Referring to fig. 6 and 11 together, in two sets of lid subassemblies that shake, the draw-in groove on a set of lid subassembly that shakes is symmetrical with the draw-in groove on another set of lid subassembly that shakes to make the effort that the buckle is connected evenly distribute on each lid subassembly that shakes, guarantee that the collet 240 atress is even, improve collet 240's stability.

In order to improve the stability of the snap connection, as shown in fig. 15 and 16, fig. 15 shows a specific structure of a tongue in the snap connection, fig. 16 shows a specific structure of a slot in the snap connection, each set of rocker cover assemblies at least includes a first slot 617 and a second slot 618, wherein the first slot 617 and the second slot 618 are adjacently disposed, and a tongue 627 is respectively inserted into the first slot 617 and the second slot 618. In order to facilitate the tongue 627 to be buckled into the first slot 617 and the second slot 618, wherein the tongue 627 has a first tongue 6271 and a second tongue 6272, the first tongue 6271 is buckled into the first slot 617, and the second tongue 6272 is buckled into the second slot 618, in order to facilitate the snap connection, it is defined that the width of the first tongue 6271 matched with the first slot 617 is not greater than the width of the second tongue 6272 matched with the second slot 618, and at least a part of the projection of the contour line of the second tongue 6272 on the fourth rocking cover body 244 is located outside the second slot 618, so that the second tongue 6272 is not easy to be separated when buckled into the second slot 618, and the stability of the snap connection is ensured. With continued reference to fig. 17, fig. 17 shows a specific structure of the latch tongue, in order to prevent the disengagement of the snap connection, when specifically arranged, the joint of the first latch tongue portion 6271 and the second latch tongue portion 6272 has a chamfer 650, the inclination direction of the chamfer 650 is toward the outside of the first latch tongue portion 6271, the second latch tongue portion 6272 can be prevented from disengaging from the first locking groove 617 by the chamfer, so as to avoid the occurrence of the disengagement phenomenon, and the stability of the snap connection can be further improved by the combination of the chamfer 650 and the bevel 640 arranged at the joint of the first latch tongue portion 6271 and the third rocking cover body 243.

With continuing reference to fig. 2, fig. 3 and fig. 4, as shown in fig. 2, a plurality of metal nails 300 are added at the overlapping position of the outer rocking cover 211 and the inner rocking cover 212, the shoe 210 is nailed and formed at the overlapping position of the outer rocking cover 211 and the inner rocking cover 212, but a nailing device and a consumed metal nail are needed in a connection mode of nailing and forming, and the metal nails are arranged in the shoe, on one hand, operators may be scratched in the box loading process, users may be scratched with the metal nails in the box unloading process, and on the other hand, the decomposition and recovery of the shoe are not facilitated. As shown in FIG. 3, the overlapping part of the outer rocking cover 221 and the inner rocking cover 222 is overlapped with a plurality of adhesive tapes 400, the bottom support 220 is formed by adhering the overlapping part of the outer rocking cover 221 and the inner rocking cover 222, but the connecting mode formed by adhering needs to use the equipment of the sealing adhesive tape and consume the sealing adhesive tape, the processing efficiency is lower, the adhesive tape is arranged in the bottom support, the processing efficiency is lower on the one hand, and the adhesive tape and the corrugated paper are adhered together to be not beneficial to the decomposition and recovery of the bottom support. As shown in fig. 4, a plurality of fastening components 500 are added at the overlapping position of the outer rocking cover 221 and the inner rocking cover 222, each fastening component 500 comprises a clamping groove 510 on the inner rocking cover 231 and a tongue 520 on the outer rocking cover 232, when the bottom support 220 is formed, the tongue 520 is inserted into the clamping groove 510 to form a fastening connection, the insertion direction of the tongue 520 is consistent with the vertical direction of the corrugation direction or the corrugation direction, so that the fastening formation is not easy to realize, when the fit clearance between the clamping groove 510 and the tongue 520 is too small, a blind insertion assembly form cannot be adopted, so that the tongue 520 is not easy to be inserted into the clamping groove hole, the tongue 520 is easy to delaminate the corrugated paper relative to the clamping groove 510 during the clamping process, when the fit clearance between the clamping groove 510 and the tongue 520 is too large, the fastening connection between the tongue 520 and the clamping groove 510 is loose, the bottom support 230 is easy to bulge after the forming, so that the assembly operation of the top support is inconvenient, meanwhile, the buckle connection mode needs folding of the inserting tongue and accurate alignment, is complex in action, is inconvenient to develop and use an automatic forming machine and adopts automatic forming processing, depends on manual operation, and is not high enough in overall processing efficiency.

For ease of understanding, the mounting of the prior art connection is compared with the mounting of the connection provided in the embodiments of the present application. The bottom supports are all suitable for the same large-screen item, and reference is made to table 1, fig. 2 and table 3, wherein table 1 shows the material cost of different connection modes, table 2 shows the time consumption of different connection modes, and table 3 shows the total cost of different connection modes.

TABLE 1

Connection mode	Amount of metal nail used	Cost/cost of metal nail	Amount of adhesive tape	Cost/cost of adhesive tape
					Metal nail
300	6-14 particles are different	0.1	/	/
					Adhesive tape 400	/	/	0.3-0.6 m	0.05-0.09
Buckle assembly 500	0	0	0	0
					Buckle assembly 600	0	0	0	0

TABLE 2

TABLE 3

Connection mode	Cost of material/yuan	Cost/cost of processing	Total cost/element	This scheme saves (Yuan/one)
					Metal nail 300	0.1	0.25	0.35	0.41
Adhesive tape 400	0.05-0.09	0.13	0.18-0.22	0.1-0.14
					Buckle assembly 500	0	0.1	0.2	0.125
Buckle assembly 600	0	0.075	0.075	/

As can be seen from table 1, compared with the nailing and gluing connection method in the prior art, the metal nails and the sealing tapes are not consumed by the shoe 240 provided in the embodiment of the present application during the forming process. It can be seen from table 2 that, comparing two types of snap-fit connection, taking 23 yuan/1 hour/person as the human cost as an example, the productivity of the bottom bracket 240 provided in the embodiment of the present application is improved by more than 20-30%, and compared with nailing, gluing and snap-fit connection in the prior art, the bottom bracket 240 provided in the embodiment of the present application has higher processing efficiency and lower processing cost, and is easier to develop a corresponding automatic auxiliary forming tool. As can be seen from table 3, the consumable items and the processing cost of the bottom bracket 240 provided in the embodiment of the present application are saved by 0.175-0.41 yuan/piece, and are calculated by 500 thousands of years, which saves 87.5-205 thousands of pieces.

In addition, as shown in fig. 5, the embodiment of the present application further provides a packaging box, which includes an upper box 100, and further includes a bottom base 240 as described above, the upper box 100 is sleeved on the outside of the bottom base 240, and the rocking cover assembly is located on the inner side of the upper box 100. Because only need to insert the outline line of tongue and can realize the machine-shaping of collet towards the direction extrusion of draw-in groove in detaining the draw-in groove, the process is comparatively simple, and efficiency is higher to the draw-in groove all with insert the tongue through the material preparation of rocking lid body self, collet monolithic material is single to be convenient for recycle, and the cost of manufacture is lower, consequently, the packing box machining efficiency who has this collet 240 is higher, has the advantage of cost of manufacture.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A bottom support is characterized by comprising at least one group of rocking cover assemblies, wherein each group of rocking cover assemblies comprises two rocking cover bodies which are arranged in an overlapped mode and at least one group of buckle assemblies used for connecting the two rocking cover bodies;

the clamping groove is a groove body penetrating through the thickness of a first rocking cover body in a group of rocking cover assemblies, the inserting tongue protrudes from a second rocking cover body in the group of rocking cover assemblies, and the projection of at least one part of the contour line of the inserting tongue on the first rocking cover body is positioned outside the clamping groove;

the clamping grooves of each group of clamping components at least comprise a first clamping groove and a second clamping groove; one insertion tongue is embedded into the first clamping groove and the second clamping groove;

the plug tongue is provided with a first plug tongue portion and a second plug tongue portion, the first plug tongue portion is buckled into the first clamping groove, the second plug tongue portion is buckled into the second clamping groove, the width of the first plug tongue portion matched with the first clamping groove is not larger than that of the second plug tongue portion matched with the second clamping groove, and at least one part of the projection of the contour line of the second plug tongue portion on the first rocking cover body is positioned on the outer side of the second clamping groove.

2. The shoe as set forth in claim 1, wherein a partial cut-off line is pre-defined on the tongue, and a projection of the partial cut-off line on the first rocking cover body is located inside the slot.

3. The shoe according to claim 1 or 2, characterized in that said tongue is connected at one end to said first rocking cover body and at the connection point with a bevel towards the outside of said tongue.

4. The shoe of claim 1, wherein the direction of projection of the tongue is the same in each set of rocker cover assemblies.

5. The shoe of claim 4, wherein the tongues of the two sets of rocker cover assemblies project in opposite directions.

6. The shoe of claim 1, wherein each set of rocker cover assemblies has at least two sets of snap assemblies, wherein the first rocker cover body in each set of rocker cover assemblies has a set of tabs of the snap assemblies and another set of slots of the snap assemblies, and wherein the second rocker cover body in each set of rocker cover assemblies has a set of slots of the snap assemblies and another set of tabs of the snap assemblies.

7. The shoe as set forth in claim 5 or 6, wherein the notches in one of said sets of said rocking cover assemblies are symmetrical with the notches in the other of said sets of said rocking cover assemblies.

8. The shoe of claim 6, wherein the number of snap assemblies is at least three, the snap assemblies being arranged in a triangle.

9. The shoe of claim 1, wherein the junction of the first tongue portion and the second tongue portion has a chamfer outward of the first tongue portion.

10. A package comprising an upper box, further comprising a base as claimed in any one of claims 1 to 9, the upper box being disposed externally of the base, and the rocking cover assembly being located inside the upper box.

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