CN114955157B

CN114955157B - Folding assembly and linkage folding goods shelf

Info

Publication number: CN114955157B
Application number: CN202210647209.1A
Authority: CN
Inventors: 渠源; 李方见; 马健; 郭丽莎; 潘品李
Original assignee: China Banknote Printing Technology Research Institute Co ltd; China Banknote Printing and Minting Group Co Ltd
Current assignee: China Banknote Printing Technology Research Institute Co ltd; China Banknote Printing and Minting Group Co Ltd
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2024-03-01
Anticipated expiration: 2042-06-09
Also published as: CN114955157A

Abstract

Embodiments of the present invention provide a folding assembly and a linked folding pallet, wherein the folding assembly comprises: the mounting seat is provided with a through groove; one end of the folding frame extends into the through groove and is rotationally connected with the mounting seat; spacing subassembly includes: the limiting sliding seat is arranged in the through groove, is in sliding connection with the mounting seat and is connected with the folding frame, the limiting sliding seat slides to a first position, and the folding frame is positioned in the through groove; the limit sliding seat slides from the first position to the second position, and the rotating angle of the folding frame is larger than 90 degrees. According to the technical scheme, after the limit sliding seat slides to the first position, the folding frame is positioned in the through groove, so that the folding frame is hidden, and the occupied space is reduced; after the limiting sliding seat slides to the second position, the rotation amplitude of the folding frame is greater than 90 degrees, after a worker places goods on the goods shelf board, the folding frame of the folding assembly can have a trend of continuing to rotate towards the unfolding direction under the action of gravity, the folding frame is prevented from rotating towards the opposite direction, and the supporting stability of the folding assembly is improved.

Description

Folding assembly and linkage folding goods shelf

Technical Field

The embodiment of the invention relates to the technical field of shelves, in particular to a folding assembly and a linkage folding shelf.

Background

In the goods shelves of the related art, a plurality of supporting rods are used for supporting the goods shelves, and when the goods shelves are not used, the supporting rods cannot be retracted in time, so that the space is occupied.

Disclosure of Invention

In order to solve at least one of the above problems, an object of an embodiment of the present invention is to provide a folding assembly.

It is another object of an embodiment of the present invention to provide a ganged folding pallet having the above folding assembly.

To achieve the above object, an embodiment of a first aspect of the present invention provides a folding assembly, including: the bottom of the mounting seat is provided with a through groove; the folding frame is provided with a first end and a second end, and the first end extends into the through groove and is rotationally connected with the mounting seat; spacing subassembly includes: the limiting sliding seat is arranged in the through groove and is in sliding connection with the mounting seat, the limiting sliding seat is connected with the folding frame, the limiting sliding seat can slide between a first position and a second position, the limiting sliding seat slides to the first position, and the folding frame is positioned in the through groove; the limit sliding seat slides from the first position to the second position, the rotation angle of the folding frame is alpha, and the value range of alpha is 93-95 degrees.

According to the embodiment of the folding assembly provided by the invention, after the limit sliding seat slides to the first position, the folding frame is positioned in the through groove, and the folding assembly is in the folding state, so that the folding frame is hidden, and the occupied space is reduced. When the limit sliding seat slides to the second position, the folding assembly is in an unfolding state. In the process that the limit sliding seat slides from the first position to the second position, the rotation angle of the folding frame is alpha, and the value of alpha is larger than 90 degrees. Because the rotation range of folding leg is greater than 90 degrees, after the staff places the goods on the goods shelf plate of linkage folding goods shelves, folding assembly's folding leg can have under the action of gravity and continue to rotate the trend to the unfolding direction, avoids the folding leg to rotate to the opposite direction with the unfolding direction, is favorable to improving folding assembly's supporting stability.

Specifically, the folding assembly comprises a mounting seat, a folding frame and a limiting assembly. Wherein, the top of mount pad is used for linking to each other with the goods shelves board of linkage folding goods shelves, and the bottom of mount pad is equipped with logical groove, and the length direction in logical groove is unanimous with the length direction of mount pad. The folding frame has first end and second end, and the first end of folding frame stretches into the logical groove of mount pad and rotates with the mount pad to be connected, and the folding frame can rotate relative to the mount pad promptly.

It should be noted that the mounting base may be a channel steel, or may be other structures with through grooves.

Further, the limit assembly includes a limit slide. The limiting sliding seat is arranged in the through groove and is in sliding connection with the mounting seat, namely, the limiting sliding seat can slide relative to the mounting seat. The limit sliding seat is connected with the folding frame. It can be understood that the folding frame can drive the limit sliding seat to slide in the sliding groove in the rotating process.

When the limit sliding seat slides to the first position, the folding frame is positioned in the through groove, and the folding assembly is in a folding state. When the folding assembly is in the folding state, the folding frame is positioned in the through groove of the mounting seat, so that the folding frame is hidden, and the occupied space is reduced.

The limit sliding seat can slide between a first position and a second position. The first position and the second position are two extreme positions. Specifically, after the limit sliding seat slides to the second position, the folding assembly is in an unfolding state. In the process that the limit sliding seat slides from the first position to the second position, the rotation angle of the folding frame is alpha, and the value of alpha is larger than 90 degrees. Because the rotation range of folding leg is greater than 90 degrees, after the staff places the goods on the goods shelf plate of linkage folding goods shelves, folding assembly's folding leg can have under the action of gravity and continue to rotate the trend to the unfolding direction, avoids the folding leg to rotate to the opposite direction with the unfolding direction, is favorable to improving folding assembly's supporting stability.

In addition, the technical scheme provided by the invention can also have the following additional technical characteristics:

in the above-mentioned technical scheme, the mount pad is equipped with first spacing hole and the spacing hole of second, and first spacing hole and logical groove intercommunication, and the spacing hole of second and logical groove intercommunication, spacing subassembly still includes: the limit switch is arranged on the limit sliding seat, can extend into the first limit hole or the second limit hole, slides to the first position, and extends into the first limit hole; the limit sliding seat slides to a second position, and the limit switch stretches into the second limit hole.

In this technical scheme, spacing subassembly still includes limit switch. Specifically, the top of mount pad is equipped with first spacing hole and second spacing hole, and first spacing hole and logical groove intercommunication, and second spacing hole and logical groove intercommunication. The limit switch is arranged on the limit sliding seat and can extend into the first limit hole or the second limit hole. The limit switch stretches into the first limit hole or the second limit hole, so that the limit sliding seat can be limited, and the folding frame is kept at a certain position and is not rotated any more.

When the limit sliding seat slides to the first position, the limit switch can extend into the first limit hole, the folding frame is positioned in the through groove, and the folding assembly is in a folding state. When the folding assembly is in a folding state, the folding frame is positioned in the through groove of the mounting seat, so that the folding frame is hidden, and the occupied space is reduced; when the limit sliding seat slides to the second position, the limit switch can extend into the second limit hole, and the folding assembly is in an unfolding state.

In the technical scheme, the value range of alpha is 93-95 degrees.

In this technical scheme, through setting the value of alpha to 93 degrees to 95 degrees, the staff places the goods back on the goods frame plate of linkage folding goods shelves, and folding assembly's folding frame can have to continue to the trend of unfolding direction pivoted under the action of gravity, avoids the folding frame to rotate to the opposite direction with the unfolding direction, is favorable to improving folding assembly's supporting stability.

In the above-mentioned technical scheme, the quantity of folding leg is two at least, and two adjacent folding legs parallel arrangement, folding subassembly still includes: at least one link, link is used for connecting two adjacent folding shelves, and the link rotates with the second end to be connected, and the length direction of link is unanimous with the length direction of mount pad.

In this technical solution, the folding assembly further comprises a connecting frame. In particular, the number of folding frames is at least two, i.e. the folding frames may be two or more, the different folding frames being parallel to each other. The connecting frame is used for connecting the two adjacent folding frames. The connecting frame is rotationally connected with the second end of the folding frame, namely, the connecting frame is rotationally connected with one end of the folding frame far away from the mounting seat. The length direction of the connecting frame is consistent with the length direction of the mounting seat, and it is understood that a part of the mounting seat, a part of the connecting frame and two adjacent folding frames form a parallelogram together. The number of the connecting frames is at least one, namely, the connecting frames can be one, two or more, and the connecting frames are flexibly arranged in consideration of the connection strength, the occupied space, the cost and other factors. Through setting up the link, can realize the synchronous rotation of different folding shelves in the same folding subassembly.

In the above technical scheme, the first end is rotationally connected with the mounting seat through the first connecting piece, and the first connecting piece is mutually fixed with the folding frame.

In this technical scheme, through setting up first connecting piece, can realize the rotation of folding leg's first end and mount pad and be connected. It should be noted that the first connector is a connecting pin, a pin, or other structure for connection. The first connecting piece passes through the groove wall of the through groove and the end part of the folding frame so as to realize the rotary connection between the folding frame and the mounting seat.

In the above technical solution, further includes: the blocking piece is arranged in the through groove and used for limiting the rotation range of the folding frame, the limiting sliding seat slides to the second position, and the folding frame abuts against the blocking piece.

In this solution, the folding assembly further comprises a blocking member. Specifically, the blocking piece is arranged in the through groove of the mounting seat, the blocking piece can limit the rotation range of the folding frame, and after the folding frame rotates to a certain position, the folding frame abuts against the blocking piece, and the blocking piece plays a limiting role. The blocking piece and the mounting seat can be detachably connected through bolts or other modes; or, the blocking piece and the mounting seat are of an integrated structure, and compared with a post-processing mode, the structure is good in mechanical property and higher in connection strength, and is beneficial to reducing the number of parts so as to improve the mounting efficiency.

In the above technical scheme, spacing subassembly still includes: the connecting rod, the one end and the spacing slide of connecting rod rotate to be connected, and the other end and a folding leg of connecting rod rotate to be connected.

In this technical scheme, spacing subassembly still includes the connecting rod. Specifically, one end of the connecting rod is rotationally connected with the limiting sliding seat, and the other end of the connecting rod is rotationally connected with one of the folding frames. In other words, the connecting rod can rotate relative to the limiting sliding seat, and the connecting rod can rotate relative to the folding frame. The folding frame can drive the limit sliding seat to slide in the sliding groove through the connecting rod in the rotating process.

In the above technical solution, further includes: and the linkage assembly is connected with the first connecting piece or the limit sliding seat.

In this technical scheme, folding subassembly still includes the linkage subassembly. Specifically, the linkage assembly is coupled to the first connector. Because the end part of the folding frame is rotationally connected with the mounting seat through the first connecting piece, and the first connecting piece is relatively fixed with the folding frame, the first connecting piece can rotate along with the folding frame in the rotating process. The first link also rotates with the linkage assembly. Or the linkage assembly is connected with the limit sliding seat, and the limit sliding seat moves along with the linkage assembly in the sliding process of the through groove.

The linkage folding goods shelf can simultaneously comprise a plurality of folding assemblies, and different folding assemblies are in transmission connection through the linkage assemblies. Only one driving unit and the rest of the plurality of folding assemblies are driven units; there may also be two or more active units in the plurality of folding assemblies. Through setting up the linkage subassembly, can realize folding or expanding a plurality of folding assemblies in the linkage folding goods shelves in step.

On one hand, if a certain unit is accidentally stuck due to friction of a local structure and the like in the unfolding process of the linked folding goods shelf, all folding units can stop unfolding, so that the prompt effect can be realized, and goods can be placed on a goods shelf plate in a trade way under the condition that the failure unit is not found to be unfolded in time; on the other hand, the fault-free units are rotated, and the recovery and the expansion of the fault units can be realized under the action of the linkage assembly until all the folding units complete the expansion action.

In the above-mentioned technical scheme, spacing slide is equipped with the mounting hole, and spacing subassembly still includes: the elastic piece is arranged in the mounting hole, the limit switch is arranged in the mounting hole, the elastic piece is provided with a third end and a fourth end, the third end is connected with the hole wall of the mounting hole, and the fourth end is connected with the limit switch.

In this technical scheme, spacing subassembly still includes the elastic component. Specifically, the limit sliding seat is provided with a mounting hole, the elastic piece is arranged in the mounting hole, the limit switch is arranged in the mounting hole, and the limit switch can move relative to the mounting hole. The elastic piece is provided with a third end and a fourth end. The third end of the elastic piece is connected with the hole wall of the mounting hole, and the fourth end of the elastic piece is connected with the limit switch. When the limit sliding seat slides to the first position, the limit switch receives upward elasticity of the elastic piece, the top of the limit switch stretches into the first limit hole through the mounting hole so as to limit the limit sliding seat, the folding frame is positioned in the through groove of the mounting seat, and the folding assembly is in a folding state. When the folding assembly needs to be unfolded, the limit switch is pressed down, the elastic piece is in a compressed state, the limit switch does not limit the limit sliding seat any more, the limit sliding seat slides from the first position to the second position until the limit sliding seat is in the second position, at the moment, the top of the limit switch stretches into the second limit hole under the action of the elastic force of the elastic piece so as to limit the limit sliding seat, and the folding assembly is in an unfolding state.

It should be noted that the elastic member may be a spring, an elastic rubber, or other elastic structures.

In the technical scheme, the mounting hole comprises a first hole section and a second hole section which are communicated with each other, the first hole section is positioned above the second hole section, and the aperture of the first hole section is smaller than that of the second hole section; the limit switch includes: the switch body is positioned in the second hole section and cannot enter the first hole section, and is connected with the fourth end; the switch head is arranged at the top of the switch body, is positioned at the first hole section and can extend into the first limit hole or the second limit hole; one end of the switch handle is connected with the switch body, the hole wall of the second hole section is provided with an extending hole, and the switch handle can extend out of the mounting seat through the extending hole.

In this solution, the mounting hole comprises a first hole section and a second hole section. Specifically, the first bore section and the second bore section are in communication with each other. The first hole section is positioned above the second hole section, and the first hole section is communicated with the through groove.

The aperture of the first hole section is smaller than that of the second hole section, and the mounting hole is understood to be a stepped hole.

Further, the limit switch may be divided into two sections, and the size of the upper section is smaller than that of the lower section. The first hole section of mounting hole can be stretched into in limit switch's the first half in limit switch's the first hole section of mounting hole or the second limit hole, limit switch's the second half can not enter into.

Further, the limit slide comprises a first portion and a second portion. The first part and the second part are detachably connected, so that the elastic piece is maintained or replaced after the lower half part is detached by a worker conveniently.

Further, the limit switch comprises a switch body, a switch head and a switch handle. Specifically, the switch body is located the second hole section of mounting hole, and the top of switch body is located to the switch head, and the switch head is located first hole section and can not get into first hole section, and the switch body is connected with the fourth end of elastic component, and the switch head can stretch into first spacing hole or second spacing hole. The switch head of the limit switch is an upper half part, the switch body is a lower half part of the limit switch, and the size of the switch head is smaller than that of the switch body. The switch head can stretch into first spacing hole or second spacing hole by the first hole section of mounting hole, and the switch body can not enter into the first hole section of mounting hole. Further, one end of the switch handle is connected with the switch body, the hole wall of the second hole section of the mounting hole is provided with an extending hole, and the extending hole is communicated with the sliding groove, so that the other end of the switch handle can sequentially extend to the outer side of the mounting seat through the mounting hole, the extending hole and the sliding groove. The staff only need to operate the switch handle on one side of the folding assembly, and can control the limit switch. Through setting up mounting hole and limit switch into the ladder structure, be favorable to reducing limit switch by the possibility of the ejecting mounting hole of elasticity of elastic component.

In the above technical scheme, the mount pad includes: the through groove is positioned at the bottom of the seat body, and the seat body is provided with a first sliding groove; the mounting plate is arranged on one side of the seat body, the first limiting hole and the second limiting hole are both positioned on the mounting plate, the mounting plate is provided with a second sliding groove, and the first sliding groove is communicated with the second sliding groove; the limit switch includes: the switch body is penetrated through the first chute and the second chute and is connected with the fourth end; the switch head is arranged at the top of the switch body and can extend into the first limit hole or the second limit hole.

In this technical scheme, the mount pad includes pedestal and mounting panel, and the mount pad divide into two parts promptly. Specifically, the through groove of the mounting seat is positioned at the bottom of the seat body, and the seat body is provided with a first chute. Further, the mounting panel is located one side of pedestal, and the first spacing hole and the second spacing hole of mount pad are located the mounting panel. The mounting plate is provided with a second chute, the first chute and the second chute form a chute structure, and the limiting sliding seat is arranged on the first chute and the second chute in a penetrating way.

Further, the limit switch comprises a switch body and a switch head. Specifically, the switch body wears to locate first spout and second spout, and the switch body is connected with the fourth end of elastic component. The switch head is arranged at the top of the switch body, and can extend into the first limit hole or the second limit hole.

In the technical scheme, the folding frame is rotationally connected with the connecting frame through the second connecting piece, the mounting seat is provided with the avoidance groove, the limiting sliding seat slides to the first position, and the second connecting piece is positioned in the avoidance groove.

In this technical scheme, through setting up the second connecting piece, and the second connecting piece passes folding leg and mount pad, can realize that folding leg and link rotate to be connected, the folding leg can rotate relative to the link promptly. Be equipped with on the mount pad and dodge the groove, after spacing slide slides to the first position, the second connecting piece can be located dodge the groove for can accomodate in the logical groove of mount pad after the folding leg rotates, conveniently hide the folding leg, reduce occupation space.

In the technical scheme, the groove wall of the through groove is provided with the sliding groove, the limiting sliding seat is provided with the pulley, the pulley is arranged on the sliding groove, and the pulley can rotate relative to the sliding groove so as to realize the relative sliding of the limiting sliding seat and the mounting seat.

In the technical scheme, through setting up the spout at the cell wall of logical groove, and set up the pulley on the spacing slide, the pulley is in the spout, and the pulley can rotate relative spout to realize the relative slip of spacing slide and mount pad. Because the pulley can rotate relative to the chute, the pulley moves in the chute in a rolling forward mode, and the design mode is that the rolling friction replaces the sliding friction relative to the mode that the pulley is fixedly connected with the limiting sliding seat, so that the friction resistance between the pulley and the chute is reduced, and the risk of clamping stagnation in the sliding process is further reduced.

In the above technical scheme, the linkage assembly includes: the linkage shaft is provided with a fifth end and a sixth end, and the fifth end is connected with the first connecting piece; the gear is arranged at the sixth end; the fifth end of the elastic shaft sleeve is connected with the first connecting piece through the elastic shaft sleeve.

In this technical scheme, the linkage subassembly includes universal driving shaft, gear and elastic sleeve. Specifically, the linkage shaft has a fifth end and a sixth end. The fifth end of the linkage shaft is connected with the first connecting piece, and the sixth end of the linkage shaft is connected with the gear, namely the gear is arranged at one end of the linkage shaft far away from the first connecting piece. Because the first end of the folding frame is rotationally connected with the mounting seat through the first connecting piece, and the first connecting piece is relatively fixed with the folding frame, the first connecting piece can rotate along with the folding frame in the rotating process. The linkage shaft is fixed relative to the first connecting member, and the first connecting member also rotates together with the linkage shaft and the gear. The linkage folding goods shelf can simultaneously comprise a plurality of folding assemblies, and different folding assemblies are in transmission connection through the linkage assemblies. Only one driving unit and the rest of the plurality of folding assemblies are driven units; there may also be two or more active units in the plurality of folding assemblies. Through setting up the linkage subassembly, can realize folding or expanding a plurality of folding assemblies in the linkage folding goods shelves in step.

Further, the fifth end of the linkage shaft is connected to the first connecting member through an elastic sleeve. An elastic sleeve is understood to mean an elastic coupling having a certain elasticity in the circumferential direction. When the folding component is a driven unit in the linkage folding goods shelf, due to transmission error or assembly error, if the folding frame of the driving unit is propped against the blocking piece, the folding frame of the driven unit is not rotated to the limit position, and at the moment, the elastic shaft sleeve can drive the folding frame of the driven unit to rotate in a small amplitude, so that the driven unit which is not propped against the blocking piece can continue to rotate under the action of gravity until the driven unit is propped against the blocking piece, and the influence of the transmission error is eliminated. Similarly, when the folding assembly is a driving unit in the linkage folding goods shelf, due to transmission errors or assembly errors, if the folding frame of the driven unit is propped against the blocking piece, but the folding frame of the driving unit is not rotated to the limit position, the elastic shaft sleeve can drive the folding frame of the driving unit to rotate in a small amplitude at the moment, so that the driving unit which is not propped against the blocking piece yet can continue to rotate under the action of gravity until the driving unit is propped against the blocking piece, and the influence of the transmission errors is eliminated.

It is worth mentioning that the elastic sleeve is capable of storing elastic potential energy. The gears in the linkage assembly can be straight gears or bevel gears, and are flexibly arranged according to actual requirements.

In the above technical scheme, the linkage assembly includes: the first linkage part is connected with the limit sliding seat and is provided with a chute; or the second linkage part is connected with the limit sliding seat, and the second linkage part is provided with a roller.

In this aspect, the linkage assembly includes a first linkage portion. Specifically, the first linkage part is connected with the limit sliding seat, and the first linkage part is provided with a chute. Alternatively, the linkage assembly includes a second linkage portion. Specifically, the second linkage part is connected with the limit sliding seat, and the second linkage part is provided with a roller. It is understood that only one of the first linkage part and the second linkage part is arranged in each folding assembly, and in different folding assemblies, the rollers are mutually matched with the chute, so that the folding assembly can drive the other folding assembly to unfold or fold.

Embodiments of the second aspect of the present invention provide a linked folding pallet comprising: a cargo rack plate; the folding assembly of any of the above embodiments is provided on a deck.

According to an embodiment of the linked folding pallet of the invention, the linked folding pallet comprises a pallet plate and a folding assembly, the folding assembly being provided to the pallet plate. The folding component mainly plays a role in supporting the shelf board. Optionally, the number of the shelf boards is at least two, and the folding assembly is flexibly arranged according to actual requirements in consideration of the stability degree of the support of the shelf boards, the size of the occupied space, the cost and other factors.

In the technical scheme, the goods shelf plate is provided with the positioning groove, the folding frame of the folding assembly is provided with the positioning protrusion, and the positioning protrusion is matched with the positioning groove.

In this technical scheme, through setting up location arch and constant head tank for linkage folding goods shelves are at the stack in-process, and folding subassembly can with goods shelves board interconnect, improve stability. In addition, the volume of the linkage folding goods shelf in the folding state can be reduced.

In the above technical scheme, the quantity of folding subassembly is four, and the bottom of goods frame plate is located to folding subassembly's mount pad, and square is constituteed to four mount pads, and four folding subassemblies include initiative horizontal folding subassembly, driven horizontal folding subassembly and two indulge folding subassembly, and two indulge folding subassembly and locate the both ends of initiative horizontal folding subassembly respectively, and driven horizontal folding subassembly sets up with initiative horizontal folding subassembly relatively, and the linkage subassembly in the vertical folding subassembly is connected with the linkage subassembly transmission in the initiative horizontal folding subassembly, and the linkage subassembly in the vertical folding subassembly is connected with the linkage subassembly transmission in the driven horizontal folding subassembly.

According to the embodiment of the linkage folding goods shelf, the four mounting seats form a square, which can be square or rectangular. The four folding assemblies comprise a driving transverse folding assembly, a driven transverse folding assembly and two longitudinal folding assemblies. It is understood that among the four folding assemblies, the driving transverse folding assembly is a driving unit, and the driven transverse folding assembly and the two longitudinal folding assemblies are three driven units. The two longitudinal folding assemblies are respectively arranged at two ends of the driving transverse folding assembly, the driven transverse folding assembly is arranged opposite to the driving transverse folding assembly, the linkage assembly in the longitudinal folding assembly is in transmission connection with the linkage assembly in the driving transverse folding assembly, and the linkage assembly in the longitudinal folding assembly is in transmission connection with the linkage assembly in the driven transverse folding assembly.

On one hand, if a certain unit is accidentally stuck due to friction of a local structure and the like in the unfolding process of the linked folding shelf, all folding units can stop unfolding, so that the function of prompting can be achieved, and goods can be placed on the shelf plate in a trade mode under the condition that the fault unit is not found to be unfolded in time; on the other hand, the fault-free units are rotated, and the recovery and the expansion of the fault units can be realized under the action of the linkage assembly until all the folding units complete the expansion action.

Further, the folding frames in the driving transverse folding assembly are rotated in the opposite direction to the folding frames in the driven transverse folding assembly. Because the rotation angle of the folding frame is 93-95 degrees, when the linked folding shelf is in an unfolding state, the folding frame in the driving transverse folding assembly and the folding frame in the driven transverse folding assembly form an eight-like structure, and on one hand, the supporting stability of the folding assembly can be ensured; on the other hand, rotation of the folding leg in a direction opposite to the unfolding direction can be avoided to a large extent.

The linked folding shelf includes any folding component of the first aspect, so that the linked folding shelf has the beneficial effects of any embodiment described above, and will not be described herein.

Additional aspects and advantages of embodiments of the invention will be made apparent in the description which follows or may be learned by practice of the invention.

Drawings

FIG. 1 shows a first schematic view of a folding assembly according to one embodiment of the invention;

FIG. 2 illustrates a schematic view of a spacing assembly according to one embodiment of the present invention;

FIG. 3 shows a second schematic view of a folding assembly according to one embodiment of the invention;

FIG. 4 shows a third schematic view of a folding assembly according to one embodiment of the invention;

FIG. 5 shows a fourth schematic view of a folding assembly according to an embodiment of the invention;

FIG. 6 shows a schematic diagram of a limit switch according to one embodiment of the invention;

FIG. 7 shows a fifth schematic view of a folding assembly according to an embodiment of the invention;

FIG. 8 shows a sixth schematic view of a folding assembly according to an embodiment of the invention;

FIG. 9 shows an enlarged partial schematic view of portion A of FIG. 8;

FIG. 10 shows a seventh schematic view of a folding assembly according to one embodiment of the invention;

FIG. 11 illustrates a first schematic view of a ganged folding pallet in accordance with an embodiment of the present invention;

FIG. 12 illustrates a second schematic view of a ganged folding pallet in accordance with an embodiment of the present invention;

FIG. 13 shows a partially enlarged schematic illustration of portion B of FIG. 12;

FIG. 14 illustrates a third schematic view of a ganged folding pallet in accordance with an embodiment of the present invention;

FIG. 15 shows an enlarged partial schematic view of portion C of FIG. 14;

FIG. 16 illustrates a fourth schematic view of a ganged folding pallet in accordance with an embodiment of the present invention;

FIG. 17 illustrates a fifth schematic view of a ganged folding pallet in accordance with an embodiment of the present invention;

FIG. 18 shows a schematic view of a ganged folding pallet in accordance with another embodiment of the present invention;

FIG. 19 shows a schematic view of a spacing assembly according to another embodiment of the present invention;

FIG. 20 shows a schematic view of a spacing assembly according to another embodiment of the present invention;

FIG. 21 shows a schematic view of a linkage assembly according to one embodiment of the invention.

The correspondence between the reference numerals and the component names in fig. 1 to 21 is:

100: a folding assembly; 110: a mounting base; 111: a through groove; 112: a chute; 1121: a first chute; 1122: a second chute; 113: a first limiting hole; 114: a second limiting hole; 115: an avoidance groove; 116: a base; 117: a mounting plate; 120: a folding frame; 121: positioning the bulge; 122: a first end; 123: a second end; 130: a connecting frame; 131: a relief groove; 141: a first connector; 142: a second connector; 150: a blocking member; 160: a linkage assembly; 161: a linkage shaft; 1611: a fifth end; 1612: a sixth end; 162: a gear; 163: an elastic sleeve; 164: a first linkage part; 1641: a chute; 165: a second linkage part; 1651: a roller; 170: a limit component; 171: a limit sliding seat; 1711: a first section; 1712: a second section; 172: a pulley; 173: a connecting rod; 174: a limit switch; 1741: a switch body; 1742: a switch head; 1743: a switch handle; 175: an elastic member; 1751: a third end; 1752: a fourth end; 176: a mounting hole; 1761: a first bore section; 1762: a second bore section; 1763: a protruding hole; 200: linkage folding goods shelves; 210: a cargo rack plate; 211: a positioning groove; 212: a switch via; 220: a support frame; 230: and a protective frame.

Detailed Description

In order that the above-recited objects, features and advantages of embodiments of the present invention can be more clearly understood, a further detailed description of embodiments of the present invention will be rendered by reference to the appended drawings and detailed description thereof. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, embodiments of the invention may be practiced otherwise than as described herein, and therefore the scope of the present application is not limited to the specific embodiments disclosed below.

The following describes a folding assembly 100 and a linked folding shelf 200 provided according to some embodiments of the present invention with reference to fig. 1-21.

Example 1

As shown in fig. 1, 2, 3, 4, 5, 7, 8 and 10, a folding assembly 100 according to an embodiment of the present invention includes a mounting base 110, a folding leg 120 and a limiting assembly 170. The top of the mounting seat 110 is connected to a shelf board 210 of the linked folding shelf 200, and a through groove 111 is formed at the bottom of the mounting seat 110, and the length direction of the through groove 111 is consistent with the length direction of the mounting seat 110. The folding leg 120 has a first end 122 and a second end 123 (shown in fig. 1). The first end 122 of the folding leg 120 extends into the through slot 111 of the mount 110 and is rotatably coupled to the mount 110, i.e., the folding leg 120 is capable of rotating relative to the mount 110.

It should be noted that the mounting base 110 may be a channel steel, or may be other structures with a through slot 111.

Further, the stopper assembly 170 includes a stopper slider 171. The limiting sliding seat 171 is disposed in the through groove 111, and the limiting sliding seat 171 is slidably connected with the mounting seat 110, that is, the limiting sliding seat 171 can slide relative to the mounting seat 110. The limit slider 171 is connected to the folding frame 120. It can be understood that the folding frame 120 drives the limit sliding seat 171 to slide in the through groove 111 during the rotation process.

When the limit slider 171 slides to the first position, the folding frame 120 is located in the through slot 111, and the folding assembly 100 is in the retracted state. Because the folding frame 120 is positioned in the through groove 111 of the mounting seat 110 when the folding assembly 100 is in the folded state, the folding frame 120 is hidden, and the occupied space is reduced.

The limit slider 171 is slidable between a first position and a second position. The first position and the second position are two extreme positions. Specifically, after the limit slider 171 slides to the second position, the folding assembly 100 is in the unfolded state. In the process of sliding the limit sliding seat 171 from the first position to the second position, the rotation angle of the folding frame 120 is α, and the value of α is greater than 90 degrees. Because the rotation range of the folding frame 120 is greater than 90 degrees, after the worker places goods on the shelf board 210 of the linkage folding shelf 200, the folding frame 120 of the folding assembly 100 can have a trend of continuing to rotate towards the unfolding direction under the action of gravity, so that the folding frame 120 is prevented from rotating towards the direction opposite to the unfolding direction, and the support stability of the folding assembly 100 is improved.

Example two

As shown in fig. 1, 3, 4, 5, 7, 8 and 10, a folding assembly 100 according to an embodiment of the present invention includes a mounting base 110, a folding leg 120, a connecting leg 130, a blocking member 150, a linkage assembly 160 and a limiting assembly 170. The top of the mounting seat 110 is connected to a shelf board 210 of the linked folding shelf 200, and a through groove 111 is formed at the bottom of the mounting seat 110, and the length direction of the through groove 111 is consistent with the length direction of the mounting seat 110. The number of the folding frames 120 is at least two, i.e. the folding frames 120 may be two or more, and different folding frames 120 are parallel to each other. The folding leg 120 has a first end 122 and a second end 123 (shown in fig. 1). The first end 122 of the folding leg 120 extends into the through-slot 111 of the mounting block 110 and is rotatably coupled to the mounting block 110 by a first coupling member 141, i.e., the folding leg 120 is capable of rotating relative to the mounting block 110.

It should be noted that the mounting base 110 may be a channel steel, or may be other structures with a through slot 111. The first connector 141 is a connecting pin, dowel, or other structure for connection. The first connection member 141 passes through the groove wall of the through groove 111 and the end of the folder 120 to achieve the rotational connection of the folder 120 with the mount 110.

Further, the connection frame 130 is used to connect two adjacent folding frames 120. The connecting frame 130 is rotatably connected to an end of the folding frame 120 remote from the through groove 111. The length direction of the connection frame 130 is identical to the length direction of the mounting base 110, and it is understood that a portion of the mounting base 110, a portion of the connection frame 130, and two adjacent folding frames 120 together form a parallelogram. As shown in fig. 3, 5, 7, 8 and 10, the number of the connection frames 130 is at least one, i.e., the connection frames 130 may be one, two or more, and the connection frames 130 are flexibly arranged in consideration of connection strength, occupied space, cost and other factors. By providing the connection frame 130, synchronous rotation of different folding frames 120 in the same folding assembly 100 can be achieved.

Further, as shown in fig. 9, the connecting frame 130 is provided with a relief groove 131, and the folding frame 120 is rotatably connected with the connecting frame 130 through the relief groove 131. By providing the relief groove 131, the folding leg 120 and the connection leg 130 can be prevented from interfering to a large extent.

Further, as shown in fig. 1, 5 and 7, the blocking member 150 is disposed in the through groove 111 of the mounting seat 110, the blocking member 150 can limit the rotation range of the folding frame 120, and after the folding frame 120 rotates to a certain position, the folding frame 120 abuts against the blocking member 150, and the blocking member 150 plays a limiting role. The barrier 150 and the mount 110 may be detachably connected by bolts or other means; or, the blocking member 150 and the mounting seat 110 are integrally formed, so that the mechanical property is good, the connection strength is higher, and the number of parts is reduced, so that the mounting efficiency is improved.

Further, the blocking member 150 is provided with a magnet, and when the folding frame 120 rotates to a position close to the blocking member 150, the magnet can attract the folding frame 120, and the attractive force can assist a worker to unfold the folding assembly 100.

Further, as shown in fig. 1 and 2, the limit assembly 170 includes a limit slider 171, a connection lever 173, and a limit switch 174. The limiting sliding seat 171 is disposed in the through groove 111, and the limiting sliding seat 171 is slidably connected with the mounting seat 110, that is, the limiting sliding seat 171 can slide relative to the mounting seat 110. One end of the connecting rod 173 is rotatably connected with the limit slider 171, and the other end of the connecting rod 173 is rotatably connected with one of the folding frames 120. In other words, the connecting rod 173 can rotate relative to the limit slider 171, and the connecting rod 173 can rotate relative to the folding frame 120. During the rotation of the folding frame 120, the connecting rod 173 drives the limit sliding seat 171 to slide in the sliding groove 112. Further, a first limiting hole 113 and a second limiting hole 114 are arranged at the top of the mounting seat 110, the first limiting hole 113 is communicated with the through groove 111, and the second limiting hole 114 is communicated with the through groove 111. The limit switch 174 is disposed on the limit slider 171, and the limit switch 174 can extend into the first limit hole 113 or the second limit hole 114. By extending the limit switch 174 into the first limit hole 113 or the second limit hole 114, the limit slider 171 can be limited, so that the folding frame 120 is kept at a certain position and is not rotated any more.

As shown in fig. 4, after the limit slider 171 slides to the first position, the limit switch 174 can extend into the first limit hole 113, and the folding frame 120 is located in the through slot 111, and the folding assembly 100 is in the folded state. Because the folding frame 120 is positioned in the through groove 111 of the mounting seat 110 when the folding assembly 100 is in the folded state, the folding frame 120 is hidden, and the occupied space is reduced.

As shown in fig. 1 and fig. 3, after the limit slider 171 slides to the second position, the limit switch 174 can extend into the second limit hole 114, where the folding frame 120 abuts against the blocking member 150, and the folding assembly 100 is in the unfolded state. In the process of sliding the limit sliding seat 171 from the first position to the second position, the rotation angle of the folding frame 120 is α, and the value range of α is 93 to 95 degrees. Because the rotation range of the folding frame 120 is greater than 90 degrees, after the worker places goods on the shelf board 210 of the linkage folding shelf 200, the folding frame 120 of the folding assembly 100 can have a trend of continuing to rotate towards the unfolding direction under the action of gravity, so that the folding frame 120 is prevented from rotating towards the direction opposite to the unfolding direction, and the support stability of the folding assembly 100 is improved.

Further, as shown in fig. 3, 4, 5, 7 and 10, the linkage assembly 160 is connected with the first connector 141. Since the first end 122 of the folding frame 120 is rotatably connected to the mounting base 110 by the first connecting member 141, and the first connecting member 141 is fixed relative to the folding frame 120, the first connecting member 141 rotates along with the folding frame 120 during the rotation process. The first connector 141 also rotates with the linkage assembly 160. Alternatively, as shown in fig. 21, the linkage assembly 160 is connected to the limit slider 171, and the linkage assembly 160 moves together during the sliding process of the limit slider 171 in the through slot 111.

As shown in fig. 11 and 12, the linked folding shelf 200 may include a plurality of folding assemblies 100 at the same time, with different folding assemblies 100 being drivingly connected by a linkage assembly 160. There may be only one driving unit and the rest driven units in the plurality of folding assemblies 100; there may also be two or more active units in the plurality of folding assemblies 100. By providing the linkage assembly 160, the plurality of folding assemblies 100 in the linked folding shelf 200 can be synchronously folded or unfolded.

Each folding assembly 100 in the linkage folding goods shelf 200 is regarded as a folding unit, and different folding units are linked through the linkage assembly 160, so that on one hand, if a certain unit is accidentally stuck due to friction of a local structure and the like in the unfolding process of the linkage folding goods shelf 200, all folding units can stop unfolding, the function of prompting can be achieved, and goods can be placed on the goods shelf plate 210 in a trade way under the condition that the failure unit is not found in time; on the other hand, the failure-free unit is rotated, and the recovery and unfolding of the failure unit can be realized under the action of the linkage assembly 160 until all the folding units complete the unfolding action.

Example III

As shown in fig. 1 and 2, the spacing assembly 170 further includes an elastic member 175. Specifically, the limit slider 171 is provided with a mounting hole 176, the elastic member 175 is provided in the mounting hole 176, and the limit switch 174 is provided in the mounting hole 176, the limit switch 174 being movable relative to the mounting hole 176. The spring 175 has a third end 1751 and a fourth end 1752 (shown in fig. 2). The third end 1751 of the elastic element 175 is connected to the wall of the mounting hole 176, and the fourth end 1752 of the elastic element 175 is connected to the limit switch 174. When the limit sliding seat 171 slides to the first position, the limit switch 174 receives the upward elastic force of the elastic member 175, and the top of the limit switch 174 extends into the first limit hole 113 from the mounting hole 176 to limit the limit sliding seat 171, and the folding frame 120 is located in the through slot 111 of the mounting seat 110, so that the folding assembly 100 is in a folded state. When the folding assembly 100 needs to be unfolded, the limit switch 174 is pressed, the elastic piece 175 is in a compressed state, the limit switch 174 does not limit the limit slide seat 171 any more, the limit slide seat 171 slides from the first position to the second position until the limit slide seat 171 is in the second position, at this time, the top of the limit switch 174 stretches into the second limit hole 114 under the action of the elastic force of the elastic piece 175 so as to limit the limit slide seat 171, and the folding assembly 100 is in an unfolding state.

It should be noted that the elastic member 175 may be a spring, an elastic rubber, or other elastic structures.

Example IV

As shown in fig. 2, the mounting bore 176 includes a first bore segment 1761 and a second bore segment 1762. Specifically, the first hole segment 1761 and the second hole segment 1762 communicate with each other. The first hole segment 1761 is located above the second hole segment 1762, and the first hole segment 1761 communicates with the through slot 111. The first hole segment 1761 has a smaller aperture than the second hole segment 1762, and it is understood that the mounting hole 176 is a stepped hole.

Further, the limit switch 174 may be divided into two sections, and the size of the upper section is smaller than that of the lower section. The upper half of limit switch 174 can extend from first hole segment 1761 of mounting hole 176 into either first limit hole 113 or second limit hole 114, and the lower half of limit switch 174 cannot enter first hole segment 1761 of mounting hole 176.

Further, as shown in fig. 2, the limit slider 171 includes a first portion 1711 and a second portion 1712. The first portion 1711 and the second portion 1712 are detachably connected, so that a worker can conveniently maintain or replace the elastic member 175 after removing the lower half.

Further, as shown in fig. 2, limit switch 174 includes a switch body 1741, a switch head 1742, and a switch handle 1743. Specifically, the switch body 1741 is positioned within the second bore segment 1762 of the mounting bore 176 with the switch head 1742 disposed atop the switch body 1741 and the switch head 1742 is positioned within the first bore segment 1761 and is not accessible to the first bore segment 1761. The switch body 1741 is connected to the fourth end 1752 of the elastic element 175, and the switch head 1742 can extend into the first limiting hole 113 or the second limiting hole 114. It will be appreciated that the switch head 1742 of the limit switch 174 is an upper half, the switch body 1741 is a lower half of the limit switch 174, and the size of the switch head 1742 is smaller than the size of the switch body 1741. The switch head 1742 can extend from the first hole segment 1761 of the mounting hole 176 into either the first limiting aperture 113 or the second limiting aperture 114, and the switch body 1741 cannot enter the first hole segment 1761 of the mounting hole 176. Further, one end of the switch handle 1743 is connected to the switch body 1741, and an extending hole 1763 is formed in a wall of the mounting hole 176, and the extending hole 1763 is communicated with the chute 112, so that the other end of the switch handle 1743 can extend to the outer side of the mounting seat 110 through the mounting hole 176, the extending hole 1763 and the chute 112 in sequence. The operator need only manipulate the switch lever 1743 on one side of the folding assembly 100 to control the limit switch 174. By arranging the mounting hole 176 and the limit switch 174 in a stepped structure, it is advantageous to reduce the possibility that the limit switch 174 is pushed out of the mounting hole 176 by the elastic force of the elastic member 175.

In another embodiment, as shown in fig. 19 and 20, the mount 110 includes a base 116 and a mounting plate 117, i.e., the mount 110 is divided into two parts. Specifically, the through groove 111 of the mounting seat 110 is located at the bottom of the seat 116, and the seat 116 is provided with a first chute 1121. Further, the mounting plate 117 is disposed on one side of the base 116, and the first limiting hole 113 and the second limiting hole 114 of the mounting base 110 are disposed on the mounting plate 117. The mounting plate 117 is provided with a second chute 1122, and the first chute 1121 is communicated with the second chute 1122 to form a chute structure, and the limit sliding seat 171 is arranged through the first chute 1121 and the second chute 1122.

Further, the limit switch 174 includes a switch body 1741 and a switch head 1742. Specifically, the switch body 1741 is disposed through the first chute 1121 and the second chute 1122, and the switch body 1741 is connected to the fourth end 1752 of the elastic element 175. The switch head 1742 is disposed at the top of the switch body 1741, and the switch head 1742 can extend into the first limiting hole 113 or the second limiting hole 114.

Example five

As shown in fig. 1, the folding leg 120 is rotatably coupled to the coupling leg 130 by a second coupling member 142. By providing the second connecting member 142, and the second connecting member 142 passes through the folding frame 120 and the mounting seat 110, the folding frame 120 and the connecting frame 130 can be rotationally connected, that is, the folding frame 120 can rotate relative to the connecting frame 130. Be equipped with on the mount pad 110 and dodge the groove 115, after spacing slide 171 slides to the first position, the second connecting piece 142 can be arranged in dodging the groove 115 for folding leg 120 can be accomodate in the logical groove 111 of mount pad 110 after rotating, conveniently hide folding leg 120, reduces occupation space.

In another embodiment, as shown in fig. 3 and 4, the linkage assembly 160 includes a linkage shaft 161, a gear 162, and an elastic sleeve 163. Specifically, the linkage shaft 161 has a fifth end 1611 and a sixth end 1612 (shown in fig. 3). The fifth end 1611 of the linkage shaft 161 is coupled to the first connector 141 and the sixth end 1612 of the linkage shaft 161 is coupled to the gear 162, i.e., the gear 162 is disposed at an end of the linkage shaft 161 remote from the first connector 141. Since the first end 122 of the folding frame 120 is rotatably connected to the mounting base 110 by the first connecting member 141, and the first connecting member 141 is fixed relative to the folding frame 120, the first connecting member 141 rotates along with the folding frame 120 during the rotation process. The linkage shaft 161 is fixed relative to the first link 141, and the first link 141 also rotates with the linkage shaft 161 and the gear 162. The linked folding shelf 200 may include a plurality of folding assemblies 100 at the same time, with different folding assemblies 100 being drivingly connected by the linkage assembly 160. There may be only one driving unit and the rest driven units in the plurality of folding assemblies 100; there may also be two or more active units in the plurality of folding assemblies 100. By providing the linkage assembly 160, the plurality of folding assemblies 100 in the linked folding shelf 200 can be synchronously folded or unfolded.

Further, the fifth end 1611 of the linkage shaft 161 is coupled to the first connector 141 by the elastic bushing 163. The elastic bushing 163 may be understood as an elastic coupling having a certain elasticity in the circumferential direction. When the folding assembly 100 is a driven unit in the linked folding shelf 200, if the folding frame 120 of the driving unit is already abutted against the blocking member 150 due to transmission error, the folding frame 120 of the driven unit is not yet rotated to the limit position, and at this time, the elastic shaft sleeve 163 can drive the folding frame 120 of the driven unit to rotate by a small extent, so that the driven unit which is not yet abutted against the blocking member 150 can continue to rotate under the action of gravity until being abutted against the blocking member 150, so as to eliminate the influence of the transmission error. Similarly, when the folding assembly 100 is a driving unit in the linked folding shelf 200, due to transmission error or assembly error, if the folding frame 120 of the driven unit is already propped against the blocking member 150, but the folding frame 120 of the driving unit has not yet rotated to the limit position, the elastic shaft sleeve 163 can drive the folding frame 120 of the driving unit to rotate in a small extent, so that the driving unit which is not yet propped against the blocking member 150 can continue to rotate under the action of gravity until being propped against the blocking member 150, so as to eliminate the influence of transmission error.

It should be noted that the elastic sleeve 163 is capable of storing elastic potential energy. As shown in fig. 3 and 18, the gear 162 in the linkage assembly 160 may be a spur gear or a bevel gear, and is flexibly arranged according to actual requirements.

In another embodiment, as shown in fig. 21, the linkage assembly 160 includes a first linkage 164. Specifically, the first linkage portion 164 is connected to the limit slider 171, and a chute 1641 is provided on the first linkage portion 164. Alternatively, the linkage assembly 160 includes a second linkage 165. Specifically, the second linkage portion 165 is connected to the limit slider 171, and a roller 1651 is disposed on the second linkage portion 165. It will be appreciated that only one of the first linkage 164 and the second linkage 165 is provided in each folding assembly 100, and that the rollers 1651 cooperate with the chute 1641 in different folding assemblies 100 such that one folding assembly 100 can be extended or retracted by the other folding assembly 100.

Example six

As shown in fig. 3, 4 and 5, the slot wall of the through slot 111 is provided with a slot 112, the limit slide 171 is provided with a pulley 172, the pulley 172 is provided on the slot 112, and the pulley 172 can rotate relative to the slot 112 to realize the relative sliding of the limit slide 171 and the mounting seat 110. Because the pulley 172 can rotate relative to the chute 112, the pulley 172 moves in the chute 112 in a rolling forward manner, and the design manner is that the rolling friction replaces the sliding friction relative to the manner in which the pulley 172 is fixedly connected with the limit sliding seat 171, so that the friction resistance between the pulley 172 and the chute 112 is reduced, and the risk of jamming in the sliding process is further reduced.

Further, the number of the sliding grooves 112 is two, the two sliding grooves 112 are respectively located on two opposite groove walls of the through groove 111, the number of the pulleys 172 is four, wherein two pulleys 172 are located on one side of the limit sliding seat 171, the other two pulleys 172 are located on the other side of the limit sliding seat 171, and the two pulleys 172 located on the same side of the limit sliding seat 171 are matched with the corresponding one sliding groove 112. By setting the number of the sliding grooves 112 to two and the number of the pulleys 172 to four, the number of the sliding grooves 112 and the pulleys 172 are controlled, the connection strength between the limit sliding seat 171 and the mounting seat 110 is ensured, and the cost is favorably controlled. In addition, two pulleys 172 located on the same side of the limit slide 171 are matched with a corresponding one of the slide grooves 112, which is beneficial to improving the sliding stability of the mounting seat 110 relative to the through groove 111.

Example seven

As shown in fig. 11, 12, 15 and 17, an embodiment of the present invention provides a linked folding pallet 200, which includes a pallet plate 210 and the folding assembly 100 of the above embodiment, wherein the folding assembly 100 is disposed on the pallet plate 210. The folding assembly 100 primarily supports the deck boards 210. Optionally, the number of shelf boards 210 is at least two, and the folding assembly 100 is flexibly arranged according to actual needs in consideration of the stability of the support of the shelf boards 210, the size of the occupied space, the cost and other factors.

In another embodiment, the shelf board 210 is provided with a positioning groove 211, the folding board 120 of the folding assembly 100 is provided with a positioning protrusion 121, and the positioning protrusion 121 is matched with the positioning groove 211. By providing the positioning protrusions 121 and the positioning grooves 211, the folding assembly 100 can be connected with the shelf board 210 during stacking of the linked folding shelf 200, and stability is improved. In addition, the volume of the linked folding pallet 200 in the folded state can be reduced.

In another embodiment, the number of folding assemblies 100 is four. The mounting seat 110 of each folding assembly 100 is disposed at the bottom of the deck plate 210, and four mounting seats 110 form a square, which may be square or rectangular. The four folding assemblies 100 include a driving transverse folding assembly, a driven transverse folding assembly, and two longitudinal folding assemblies. It will be appreciated that of the four folding assemblies 100, the driving transverse folding assembly is a driving unit, and the driven transverse folding assembly and the two longitudinal folding assemblies are three driven units. The two longitudinal folding assemblies are respectively arranged at two ends of the driving transverse folding assembly, the driven transverse folding assembly is arranged opposite to the driving transverse folding assembly, a linkage assembly 160 in the longitudinal folding assembly is in transmission connection with a linkage assembly 160 in the driving transverse folding assembly, and the linkage assembly 160 in the longitudinal folding assembly is in transmission connection with the linkage assembly 160 in the driven transverse folding assembly.

On the one hand, if a certain unit is accidentally stuck due to friction of a local structure and the like in the unfolding process of the linked folding shelf 200, all folding units can stop unfolding, so that a prompting effect can be achieved, and goods can be placed on the shelf board 210 in a trade way under the condition that a fault unit is not found to be unfolded in time; on the other hand, the failure-free unit is rotated, and the recovery and unfolding of the failure unit can be realized under the action of the linkage assembly 160 until all the folding units complete the unfolding action.

Further, as shown in fig. 14 and 16, the folding leg 120 in the driving transverse folding assembly 100 is rotated in the opposite direction to the folding leg 120 in the driven transverse folding assembly 100. Because the rotation angle of the folding frame 120 is 93 degrees to 95 degrees, when the linked folding shelf 200 is in the unfolded state, the folding frame 120 in the driving transverse folding assembly 100 and the folding frame 120 in the driven transverse folding assembly 100 form an eight-like structure, so that on one hand, the supporting stability of the folding assembly 100 can be ensured; on the other hand, the folding leg 120 can be largely prevented from rotating in the direction opposite to the unfolding direction.

Further, as shown in fig. 12, the linked folding shelf 200 further includes a supporting frame 220, the mounting seats 110 in different folding assemblies 100 are connected by the supporting frame 220, and the supporting frame 220 may function as a reinforcing rib. The number of the supporting frames 220 is at least one, that is, the number of the supporting frames 220 can be one, two or more, and the supporting frames 220 can be flexibly arranged according to actual requirements.

Further, as shown in fig. 12 and 13, the ganged folding pallet 200 further includes a protective frame 230. The protection frame 230 is arranged at one side of the mounting seat 110, and the switch handle 1743 in the folding assembly 100 passes through the protection frame 230, so that a worker can conveniently control the switch handle 1743. By providing the protection frame 230, on the one hand, the structural strength of the mount 110 can be improved to some extent; on the other hand, the mount 110 may be protected. It should be noted that the protection frame 230 may have a U-shape, or may have a structure with other shapes.

Further, as shown in fig. 17, at least two switch through holes 212 are further provided on the shelf board 210, wherein one switch through hole 212 is communicated with the first limiting hole 113, and the other switch through hole 212 is communicated with the second limiting hole 114.

Example eight

As shown in fig. 1, the active cross-axis unit (i.e., folding assembly 100) is comprised of a cross-axis seat (i.e., mounting seat 110), a cross-axis fold rack (i.e., folding rack 120), a cross-axis base (i.e., connecting rack 130), and a cross-axis back (i.e., stop 150). The transverse axle seat is connected with the transverse folding frame through a first pin (namely a first connecting piece 141), and the transverse folding frame is connected with the transverse axle bottom plate through a second pin (namely a second connecting piece 142). Optionally, the transverse folding frames are made of steel materials, two adjacent transverse folding frames are arranged in parallel, and the transverse shaft seat, the transverse folding frames and the transverse shaft bottom plate form a parallelogram. Optionally, the spacing of adjacent two transverse folding shelves is everywhere the same. By arranging the transverse shaft bottom plate, the transverse folding frame rotates on the transverse shaft seat together. The transverse folding frame is folded into the transverse shaft seat when rotating anticlockwise, and is unfolded from the transverse shaft seat when rotating clockwise. The function of the transverse axis backer is to limit the unfolding angle α of the transverse fold, which may be a value of 93 degrees to 95 degrees. A magnet (not depicted in fig. 1) is fixed on the transverse arm rest, which is effective in enabling the transverse arm rest to continue to rotate by magnetic force until the transverse arm rest is propped against the transverse arm rest when the transverse arm rest reaches a vertical position of 90 degrees, so that the unfolding angle alpha of the transverse arm rest in the active transverse arm unit reaches a design value.

In another embodiment, as shown in fig. 2, the switch unit (i.e., the limit assembly 170) includes a switch link (i.e., the connecting rod 173), a switch slide (i.e., the first portion 1711 of the limit slide 171), a switch base plate (i.e., the second portion 1712 of the limit slide 171), a switch post (i.e., the limit switch 174), and a compression spring (i.e., the elastic member 175). One end of the switch connecting rod is connected with the switch sliding seat through a pin, and the other end of the switch connecting rod is connected with the transverse folding frame. The switch bottom plate forms an envelope space with the mounting hole 176 of the switch slide, a certain stroke is given to the switch column and the pressure spring in the vertical direction, and meanwhile, the switch column stretches out upwards through the switch hole (the first limit hole 113 or the second limit hole 114) under the elastic force of the pressure spring. The mounting hole 176 has a length that allows the switch post to extend from the cross-shaft seat and also allows the switch post to fully retract into the switch slide without interfering with the cross-shaft seat. Optionally, the switch bottom plate is connected with the switch slide through the screw from the switch slide below, can conveniently change the pressure spring.

In another embodiment, as shown in fig. 3, the transverse axle seat is a semi-closed beam with downward opening (i.e. the mounting seat 110 with a through slot 111 at the bottom), and two sides of the transverse axle seat, which are close to the switch unit, are symmetrically provided with sliding slots (i.e. sliding slots 112). Two pulleys 172 are respectively arranged on two sides of the switch slide (namely, four pulleys 172 are provided), and the pulleys 172 can roll in the sliding grooves, so that the switch slide can transversely move along the transverse shaft seat. The top end of the transverse shaft seat is also provided with two switch holes (namely a first limit hole 113 and a second limit hole 114). The top end of the transverse shaft seat is also provided with a plurality of positioning grooves. The two sides of the transverse axle seat are provided with storage grooves (namely avoiding grooves 115), and the number of the storage grooves is consistent with that of the transverse folding frames. The unfolded state of the cross folding frame on the cross shaft seat is shown in fig. 3, and the switch post can extend from the switch hole (i.e. the second limiting hole 114) located at the left side.

In another embodiment, there is also a linkage (i.e., linkage assembly 160) on the active cross-axis unit. The linkage mechanism is composed of a coupling (i.e., an elastic shaft sleeve 163), a linkage shaft 161, and a gear 162. Wherein the coupling is fixedly connected with the pin (i.e., the first connector 141) of the lateral folding frame. When the transverse folding frame rotates, the gears can be driven to rotate together through the coupler and the linkage shaft. The coupling is elastic with a certain elasticity in the circumferential direction.

In another embodiment, as shown in fig. 6, a switch post includes a switch head 1742, a switch body 1741, and a switch handle 1743. Wherein, the switch head can stretch out from the switch hole, the switch body slides in the mounting hole of the switch slide, and the switch handle stretches out from the side slot (namely the stretching hole 1763) of the switch slide. When the switch handle is pressed down, the switch head is completely retracted into the mounting hole of the switch slide, and at the moment, the switch slide can transversely move along the transverse shaft seat.

As shown in fig. 9, the bottom of the transverse folding frame is also provided with a transverse positioning protrusion (i.e. positioning protrusion 121), and the transverse base plate is provided with a yielding groove 131, which has the function of providing a yielding space for the transverse positioning protrusion during the folding process of the transverse folding frame, so as to prevent the transverse base plate from interfering with the transverse positioning protrusion.

As shown in fig. 4, which illustrates a folded state of the transverse folding frame on the transverse shaft seat, it can be seen that the receiving groove (i.e., the avoiding groove 115) is used for providing a receiving space for a pin (i.e., the first connecting member 141) for connecting the transverse folding frame with the transverse shaft bottom plate, so as to reduce the folded volume of the transverse folding frame on the transverse shaft seat.

As shown in fig. 4, when the transverse folding frame is folded due to the counterclockwise rotation, the transverse folding frame moves the switch slide to the right through the switch link so that the switch post protrudes through the switch hole (i.e., the second limit hole 114).

In another embodiment, as shown in fig. 5, the driven cross axle unit (i.e., folding assembly 100) includes a cross axle seat (i.e., mounting seat 110), a cross fold rack (i.e., folding rack 120), a driven cross axle base (i.e., connecting rack 130), and a cross axle backer (i.e., stop 150). The transverse shaft seat, the transverse folding frame and the driven transverse shaft bottom plate form a parallelogram.

When the transverse folding frame of the driven transverse shaft unit is unfolded on the transverse shaft seat, the unfolding angle of the transverse folding frame and the transverse shaft bottom plate is beta, and the beta value is the same as the unfolding angle alpha of the driving transverse shaft unit. The transverse shaft bottom plate is provided with a yielding groove 131, and the yielding groove is used for providing a yielding space for the transverse positioning bulge in the folding process of the transverse folding frame so as to prevent the transverse shaft bottom plate from interfering with the transverse positioning bulge.

Further, a magnet (not depicted in fig. 5) is fixed on the transverse arm rest, so that when the transverse folding frame reaches a vertical position of 90 degrees, the transverse folding frame can be enabled to continue to rotate through magnetic force until the transverse folding frame is propped against the transverse arm rest, and the unfolding angle beta of the driven transverse arm unit reaches a design value between 93 degrees and 95 degrees.

Further, a linkage mechanism is arranged on the driven transverse shaft unit. The coupling is fixedly connected with the pin (i.e. the first connecting piece 141) of the transverse folding frame, and when the transverse folding frame rotates, the gear can be driven to rotate together through the coupling and the coupling shaft. The coupling has a certain elasticity in the circumferential direction.

In another embodiment, as shown in fig. 8, a longitudinal folding unit (i.e., folding assembly 100) includes a longitudinal shaft seat (i.e., mounting seat 110), a longitudinal folding leg (i.e., folding leg 120), a longitudinal base plate (i.e., connecting leg 130), and a longitudinal stop (i.e., stop 150). The longitudinal shaft seat is connected with the longitudinal folding frame through a first pin (namely a first connecting piece 141), and the longitudinal folding frame is connected with the longitudinal base plate through a second pin (namely a second connecting piece). The longitudinal shaft seat is provided with a longitudinal positioning groove (namely a through groove 111) and a containing groove (namely a avoiding groove 115). The function of the receiving groove is to provide a receiving space for the pin (i.e., the second connecting piece 142) of the longitudinal axis base plate, and reduce the folding volume of the longitudinal folding frame on the longitudinal axis seat. The longitudinal axis bottom plate is provided with a yielding groove, and the yielding groove is used for providing a yielding space for the longitudinal positioning bulge of the longitudinal folding frame and preventing the longitudinal axis bottom plate from interfering with the longitudinal positioning bulge.

Further, the magnets are fixed on the longitudinal axis backer, so that when the longitudinal folding frame reaches the vertical position of 90 degrees, the longitudinal folding frame can be enabled to continue to rotate through magnetic force until the longitudinal folding frame abuts against the longitudinal axis backer, and the unfolding angle gamma of the longitudinal folding frame in the longitudinal axis unit reaches a design value between 93 degrees and 95 degrees.

Further, the longitudinal shaft seat, the longitudinal folding frame and the longitudinal shaft bottom plate form a parallelogram, when the longitudinal folding frame is unfolded on the longitudinal shaft seat, the unfolding angle of the longitudinal folding frame and the longitudinal shaft bottom plate is gamma, and the gamma value is the same as the unfolding angle alpha of the active transverse shaft unit.

Further, a linkage mechanism is arranged on the longitudinal axis unit. The shaft coupling is fixedly connected with the pin (i.e. the first connecting piece 141) of the longitudinal folding frame, and when the longitudinal folding frame rotates, the gear can be driven to rotate together through the shaft coupling and the coupling shaft. The coupling has a certain elasticity in the circumferential direction.

In another embodiment, as shown in FIG. 11, the linked folding pallet 200 includes an active transverse axis unit, a longitudinal axis unit A, a longitudinal axis unit B, and a driven shaft stack unit (it is understood that the linked folding pallet 200 includes four folding assemblies 100). The linkage mechanism connects the driving transverse axis unit and the vertical axis unit A, the vertical axis unit A and the driven transverse axis unit, the driven transverse axis unit and the vertical axis unit B, and the vertical axis unit B and the driving transverse axis unit.

As shown in fig. 11, when the driving transverse axis unit is folded, the vertical axis unit a can be driven by the linkage mechanism to fold, and the vertical axis unit a drives the left half part of the driven transverse axis unit to fold by the linkage mechanism; meanwhile, when the driving transverse shaft unit is folded, the vertical shaft unit B can be driven to be folded through the linkage mechanism, and the vertical shaft unit B drives the right half part of the driven transverse shaft unit to be folded through the linkage mechanism. Conversely, when the active transverse axis unit is deployed, the vertical axis unit a, the vertical axis unit B, and the passive transverse axis unit can be deployed by the link mechanism.

Further, as shown in fig. 12, the ganged folding pallet 200 further includes a support frame 220, a handle, a switch protection frame (i.e., a protection frame 230), and a pallet plate 210. The supporting frame 220 is located between the driving transverse axis unit, the longitudinal axis unit a, the longitudinal axis unit B and the driven transverse axis unit, and a through hole is formed in the supporting frame 220 at a position corresponding to the linkage device (i.e. the linkage assembly 160) to allow the linkage shaft 161 of the linkage device to pass through. The supporting frame 220 has the function of improving the connection strength of the driving transverse shaft unit, the vertical shaft unit A, the vertical shaft unit B and the driven transverse shaft unit; secondly, to improve the fixing rigidity of the linkage shaft 161; third, the deck boards 210 are supported. A plurality of handles are arranged outside the driving transverse shaft unit, the longitudinal shaft unit A, the longitudinal shaft unit B and the driven transverse shaft unit, a switch protection frame is arranged outside the switch column of the driving transverse shaft unit, and the switch protection frame is provided with a groove which allows the switch handle 1743 of the switch column to extend out.

As shown in fig. 14 and 16, when the horizontal folding frames and the vertical folding frames are fully unfolded, the unfolding angles α, β, γ are the same values between 93 degrees and 95 degrees, so that the horizontal folding frames of the driving horizontal shaft unit and the horizontal folding frame frames of the driven horizontal shaft unit are arranged in a splayed manner, and the vertical folding frames of the vertical shaft unit a and the vertical shaft unit B are also arranged in a splayed manner. The transverse folding frame and the longitudinal folding frame mainly bear the compressive stress in the gravity direction, but not overlarge bending stress; secondly, under the gravity action of the linked folding goods shelf 200 and the goods loaded by the linked folding goods shelf, the transverse folding shelf and the longitudinal folding shelf cannot rotate and retract in the folding direction (if the linked folding goods shelf 200 and the weight are required to be jacked up against the gravity in the folding direction, the transverse folding shelf and the longitudinal folding shelf can pass through the vertical position of 90 degrees and continue to rotate in the folding direction), but only can respectively prop against the transverse shaft stop block (namely the stop piece 150) and the longitudinal shaft stop block (namely the stop piece 150), so that the stability of the mechanism of the linked folding goods shelf 200 when the weight is loaded is maintained.

Because the linkage (i.e., linkage assembly 160) has a transmission error and the transverse and longitudinal axis stops have an assembly error, when the transverse fold of the active transverse axis unit has been forced against the transverse axis stop and the transverse fold of the active transverse axis unit has not been able to continue to rotate, the longitudinal fold of the longitudinal axis unit and the transverse fold of the driven transverse axis unit may not be forced against the respective longitudinal and transverse axis stops, but because the coupling is a circumferentially resilient, elastic coupling, the longitudinal fold of the longitudinal axis unit and the transverse fold of the driven transverse axis unit may continue to rotate slightly under the magnetic force of the magnets on the longitudinal and transverse axis stops until the extended position is reached under the magnetic force.

As shown in fig. 11, the shelf board 210 has a horizontal positioning groove, a vertical positioning groove (i.e., positioning groove 211) and a switch via 212. The number and the positions of the transverse positioning grooves are matched with those of the transverse positioning protrusions of the transverse folding frame, and the transverse positioning protrusions can be inserted into the transverse positioning grooves; the longitudinal positioning groove is adapted to the longitudinal positioning protrusion of the longitudinal folding frame, and the longitudinal positioning protrusion can be inserted into the longitudinal positioning groove. The significance of arranging the transverse positioning groove, the longitudinal positioning groove, the transverse positioning bulge and the longitudinal positioning bulge is that a certain connection relation can be arranged between the transverse direction and the longitudinal direction when the plurality of linked folding shelves 200 are stacked, so that the stability of the stack is maintained.

According to the embodiment of the folding assembly and the linkage folding goods shelf, after the limit sliding seat slides to the first position, the limit switch can extend into the first limit hole, the folding frame is positioned in the through groove, and the folding assembly is in a folding state. When the folding assembly is in the folding state, the folding frame is positioned in the through groove of the mounting seat, so that the folding frame is hidden, and the occupied space is reduced. When the limit sliding seat slides to the second position, the limit switch can extend into the second limit hole, the folding frame and the blocking piece are propped against each other, and the folding assembly is in an unfolding state. In the process that the limit sliding seat slides from the first position to the second position, the rotation angle of the folding frame is alpha, and the value range of alpha is 93-95 degrees. Because the rotation range of folding leg is greater than 90 degrees, after the staff places the goods on the goods shelf plate of linkage folding goods shelves, folding assembly's folding leg can have under the action of gravity and continue to rotate the trend to the unfolding direction, avoids the folding leg to rotate to the opposite direction with the unfolding direction, is favorable to improving folding assembly's supporting stability.

In the present invention, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A folding assembly (100), characterized by comprising:

the mounting seat (110), the bottom of the mounting seat (110) is provided with a through groove (111);

a folding leg (120) having a first end (122) and a second end (123), the first end (122) extending into the through slot (111) and being rotatably connected to the mounting block (110);

A spacing assembly (170), comprising:

the limiting sliding seat (171) is arranged in the through groove (111), the limiting sliding seat (171) is in sliding connection with the mounting seat (110), the limiting sliding seat (171) is connected with the folding frame (120), the limiting sliding seat (171) can slide between a first position and a second position, the limiting sliding seat (171) slides to the first position, and the folding frame (120) is positioned in the through groove (111); the limit sliding seat (171) slides from the first position to the second position, the rotation angle of the folding frame (120) is alpha, and the value of alpha is larger than 90 degrees;

the first end (122) is rotatably connected with the mounting seat (110) through a first connecting piece (141), and the first connecting piece (141) and the folding frame (120) are mutually fixed;

the linkage assembly (160) is connected with the first connecting piece (141), or the linkage assembly (160) is connected with the limit sliding seat (171), wherein different folding assemblies are in transmission connection through the linkage assembly;

the linkage assembly (160) includes:

-a linkage shaft (161) having a fifth end (1611) and a sixth end (1612), said fifth end (1611) being connected to said first connection member (141);

A gear (162) provided at the sixth end (1612);

-an elastic sleeve (163), said fifth end (1611) being connected to said first connection (141) by means of said elastic sleeve (163); or (b)

The linkage assembly (160) includes:

the first linkage part (164) is connected with the limit sliding seat (171), and a chute (1641) is arranged on the first linkage part (164); or (b)

The second linkage part (165) is connected with the limit sliding seat (171), and a roller (1651) is arranged on the second linkage part (165);

the mount pad (110) is equipped with first spacing hole (113) and second spacing hole (114), first spacing hole (113) with logical groove (111) intercommunication, just second spacing hole (114) with logical groove (111) intercommunication, spacing subassembly (170) still include:

the limit switch (174) is arranged on the limit slide seat (171), the limit switch (174) can extend into the first limit hole (113) or the second limit hole (114), the limit slide seat (171) slides to the first position, and the limit switch (174) extends into the first limit hole (113); the limit sliding seat (171) slides to the second position, and the limit switch (174) stretches into the second limit hole (114);

The limit sliding seat (171) is provided with a mounting hole (176), and the limit assembly (170) further comprises:

elastic component (175), locate in mounting hole (176), limit switch (174) are located in mounting hole (176), elastic component (175) have third end (1751) and fourth end (1752), third end (1751) with the pore wall of mounting hole (176) links to each other, fourth end (1752) with limit switch (174) link to each other.

2. The folding assembly (100) of claim 1, wherein a has a value in the range of 93 degrees to 95 degrees.

3. The folding assembly (100) of claim 1, wherein the number of folding legs (120) is at least two, adjacent two of the folding legs (120) being disposed in parallel,

the folding assembly (100) further comprises:

the connecting frame (130) is used for connecting two adjacent folding frames (120), the connecting frame (130) is rotationally connected with the second end (123), and the length direction of the connecting frame (130) is consistent with the length direction of the mounting seat (110).

4. The folding assembly (100) of claim 1, further comprising:

The blocking piece (150) is arranged in the through groove (111), the blocking piece (150) is used for limiting the rotation range of the folding frame (120), the limiting sliding seat (171) slides to the second position, and the folding frame (120) is propped against the blocking piece (150).

5. The folding assembly (100) of claim 1, wherein the spacing assembly (170) further comprises:

the connecting rod (173), one end of connecting rod (173) with spacing slide (171) rotate to be connected, the other end of connecting rod (173) with folding leg (120) rotate to be connected.

6. The folding assembly (100) of claim 1, wherein the mounting hole (176) includes a first hole section (1761) and a second hole section (1762) in communication with each other, the first hole section (1761) being located above the second hole section (1762), the first hole section (1761) having a smaller pore size than the second hole section (1762);

the limit switch (174) includes:

-a switch body (1741) located within the second hole section (1762) and not accessible to the first hole section (1761), the switch body (1741) being connected with the fourth end (1752);

The switch head (1742) is arranged at the top of the switch body (1741), the switch head (1742) is positioned at the first hole section (1761), and the switch head (1742) can extend into the first limit hole (113) or the second limit hole (114);

the switch handle (1743), the one end of switch handle (1743) with the switch body (1741) links to each other, the pore wall of second hole section (1762) is equipped with stretches out hole (1763), switch handle (1743) can by stretch out hole (1763) stretch out mount pad (110).

7. The folding assembly (100) of claim 1, wherein the mount (110) comprises:

the base body (116), the through groove (111) is positioned at the bottom of the base body (116), and the base body (116) is provided with a first chute (1121);

the mounting plate (117) is arranged on one side of the base body (116), the first limiting hole (113) and the second limiting hole (114) are both positioned on the mounting plate (117), the mounting plate (117) is provided with a second sliding groove (1122), and the first sliding groove (1121) is communicated with the second sliding groove (1122);

the limit switch (174) includes:

The switch body (1741) is arranged in the first chute (1121) in a penetrating way and is connected with the second chute (1122), and the switch body (1741) is connected with the fourth end (1752);

the switch head (1742) is arranged at the top of the switch body (1741), and the switch head (1742) can extend into the first limit hole (113) or the second limit hole (114).

8. The folding assembly (100) according to claim 3, wherein the folding frame (120) is rotatably connected with the connecting frame (130) through a second connecting piece (142), the mounting seat (110) is provided with a avoiding groove (115), the limit sliding seat (171) slides to the first position, and the second connecting piece (142) is located in the avoiding groove (115).

9. The folding assembly (100) according to claim 1, wherein a chute (112) is provided on a chute wall of the through slot (111), a pulley (172) is provided on the limit slide (171), the pulley (172) is provided on the chute (112), and the pulley (172) can rotate relative to the chute (112) to realize relative sliding of the limit slide (171) and the mounting base (110).

10. The folding assembly (100) according to claim 9, wherein the number of sliding grooves (112) is two, two sliding grooves (112) are respectively positioned on two opposite groove walls of the through groove (111), the number of pulleys (172) is four, two pulleys (172) are positioned on one side of the limit slide (171), the other two pulleys (172) are positioned on the other side of the limit slide (171), and two pulleys (172) positioned on the same side of the limit slide (171) are matched with the corresponding sliding groove (112).

11. A ganged folding pallet (200), comprising:

a deck plate (210);

the folding assembly (100) of any of claims 1 to 10, provided to the shelf panel (210).

12. The linked folding shelf (200) of claim 11, wherein the shelf board (210) is provided with a positioning groove (211), the folding frame (120) of the folding assembly (100) is provided with a positioning protrusion (121), and the positioning protrusion (121) is matched with the positioning groove (211).

13. The linked folding pallet (200) of claim 11, wherein the number of folding assemblies (100) is four, the mounting seats (110) of the folding assemblies (100) are arranged at the bottom of the pallet board (210), the four mounting seats (110) form a square, the four folding assemblies (100) comprise a driving transverse folding assembly, a driven transverse folding assembly and two longitudinal folding assemblies, the two longitudinal folding assemblies are respectively arranged at two ends of the driving transverse folding assembly, the driven transverse folding assembly is arranged opposite to the driving transverse folding assembly, a linkage assembly (160) in the longitudinal folding assemblies is in transmission connection with a linkage assembly (160) in the driving transverse folding assembly, and the linkage assembly (160) in the longitudinal folding assemblies is in transmission connection with a linkage assembly (160) in the driven transverse folding assembly.