CN114955157A

CN114955157A - Folding assembly and linkage folding goods shelf

Info

Publication number: CN114955157A
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: 2022-08-30
Anticipated expiration: 2042-06-09
Also published as: CN114955157B

Abstract

An embodiment of the present invention provides a folding assembly and a linked folding shelf, 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 connected with the mounting seat in a sliding manner 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 limiting 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 limiting sliding seat slides to the first position, the folding frame is located in the through groove, so that the folding frame can be hidden, and the occupied space is reduced; after the limiting sliding seat slides to the second position, the rotating amplitude of the folding frame is larger than 90 degrees, after the worker places the goods on the goods shelf plate, the folding frame of the folding assembly can continue 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 goods shelves, in particular to a folding assembly and a linkage folding goods shelf.

Background

In the goods shelves of correlation technique, adopt a plurality of bracing pieces to support the goods shelves board, when the goods shelves is not using, the bracing piece can not in time be packed up, occupation space.

Disclosure of Invention

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

Another object of an embodiment of the present invention is to provide a linked folding shelf 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 rotatably connected with the mounting seat; spacing subassembly includes: the limiting sliding seat is arranged in the through groove, is connected with the mounting seat in a sliding manner, is connected with the folding frame, can slide between a first position and a second position, slides to the first position, and is positioned in the through groove; the limiting sliding seat slides from the first position to the second position, the rotating angle of the folding frame is alpha, and the value range of the alpha is 93 degrees to 95 degrees.

According to the embodiment of the folding assembly provided by the invention, after the limiting sliding seat slides to the first position, the folding frame is positioned in the through groove, and the folding assembly is in a folded state, so that the folding frame can be hidden, and the occupied space is reduced. After the limiting sliding seat slides to the second position, the folding assembly is in an unfolding state. In the process that the limiting sliding seat slides from the first position to the second position, the rotating angle of the folding frame is alpha, and the value of the alpha is larger than 90 degrees. Because the rotation range of folding leg is greater than 90 degrees, after the staff placed the goods on the shelf board of the folding goods shelves of linkage, folding leg of folding assembly can have the trend that continues to expand the direction pivoted under the action of gravity, avoids the folding leg to rotate to the direction opposite with the expansion direction, is favorable to improving folding assembly's support stability.

Specifically, folding assembly includes mount pad, folding leg and spacing subassembly. Wherein, the top of mount pad is used for linking to each other with the shelf board of the folding goods shelves of linkage, and the bottom of mount pad is equipped with logical groove, and the length direction who leads to the groove is unanimous with the length direction of mount pad. The folding leg has first end and second end, and the first end of folding leg stretches into the logical groove of mount pad and rotates with the mount pad to be connected, and the folding leg can rotate the mount pad relatively promptly.

It should be noted that the mounting seat may be a channel steel, or may be another structure with a through groove.

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

After the limiting sliding seat slides to the first position, the folding frame is located in the through groove, and the folding assembly is in a folding state. Because folding assembly is in when packing up the state, the folding leg is arranged in the logical groove of mount pad, is favorable to hiding the folding leg, reduces occupation space.

The limiting 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 limiting slide seat slides to the second position, the folding assembly is in an unfolded state. In the process that the limiting sliding seat slides from the first position to the second position, the rotating angle of the folding frame is alpha, and the value of the alpha is larger than 90 degrees. Because the rotation range of folding leg is greater than 90 degrees, after the staff placed the goods on the shelf board of the folding goods shelves of linkage, folding leg of folding assembly can have the trend that continues to the rotation of expansion direction under the action of gravity, avoids the folding leg to rotate to the direction opposite with the expansion direction, is favorable to improving folding assembly's support stability.

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

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

In this technical scheme, spacing subassembly still includes limit switch. Specifically, the top of mount pad is equipped with first spacing hole and the spacing hole of second, first spacing hole with lead to groove intercommunication, and the spacing hole of second and lead to the 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. Through stretching into first spacing hole or the spacing hole of second with limit switch, can carry on spacingly to spacing slide, and then make the folding leg keep no longer rotating under certain position state.

After the limiting slide seat slides to the first position, the limiting switch can stretch into the first limiting hole, the folding frame at the moment 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; after the limiting slide seat slides to the second position, the limiting switch can stretch into the second limiting hole, and the folding assembly is in an unfolding state.

In the above technical solution, the value range of α is 93 degrees to 95 degrees.

In this technical scheme, set up to 93 degrees to 95 degrees through the value with alpha, after the staff placed the goods on the shelf plate of the folding goods shelves of linkage, folding assembly's folding leg can have under the action of gravity and continue to the orientation pivoted trend that expandes, avoids the folding leg to rotate to the orientation opposite with the direction that expandes, is favorable to improving folding assembly's support stability.

In above-mentioned technical scheme, the quantity of folding leg is at least two, two adjacent folding leg parallel arrangement, and folding assembly still includes: and the connecting frame is used for connecting two adjacent folding frames, the connecting frame is rotatably connected with the second end, and the length direction of the connecting frame is consistent with that of the mounting seat.

In this solution, the folding assembly further comprises a connecting frame. In particular, the number of folding legs is at least two, i.e. two or more folding legs, the different folding legs being parallel to each other. The connecting frame is used for connecting two adjacent folding frames. The connecting frame is connected with the second end of the folding frame in a rotating mode, namely the connecting frame is connected with one end, far away from the mounting seat, of the folding frame in a rotating mode. The length direction of the connecting frame is consistent with that of the mounting seat, and it can be 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 connecting strength, the occupied space size, the cost and other factors. Through setting up the link, can realize that different folding legs in same folding assembly rotate in step.

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

In this technical scheme, through setting up first connecting piece, can realize that the first end of folding leg is connected with the rotation of mount pad. It is noted that the first connecting member is a connecting pin, a pin, or other structure for connection. The first connecting piece penetrates through the groove wall of the through groove and the end part of the folding frame to realize the rotating connection of the folding frame and the mounting seat.

In the above technical solution, the method further comprises: the stop 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 stop piece.

In this solution, the folding assembly further comprises a blocking member. Specifically, block and locate the logical inslot of mount pad, block the rotation range that can restrict the folding leg, after the folding leg rotated to a certain position, the folding leg offseted with blocking, and it plays spacing effect to block. 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 mechanical property is good, the connection strength is higher, the number of parts is favorably reduced, and the mounting efficiency is improved.

In the above technical solution, the limiting component further includes: one end of the connecting rod is rotatably connected with the limiting sliding seat, and the other end of the connecting rod is rotatably connected with a folding frame.

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

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

In this technical scheme, folding assembly still includes the linkage assembly. Specifically, the linkage assembly is connected with the first connecting piece. 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 of the folding frame. The first link also rotates with the linkage assembly. Or the linkage assembly is connected with the limiting sliding seat, and the linkage assembly can move along with the limiting sliding seat in the process of sliding in the through groove.

The linkage folding goods shelf can simultaneously comprise a plurality of folding assemblies, and different folding assemblies are connected in a transmission mode through the linkage assemblies. Only one driving unit can be arranged in the plurality of folding assemblies, and the rest driving units 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 expand a plurality of folding assembly in the folding goods shelves of linkage in step.

Each folding assembly in the linkage folding goods shelf is regarded as a folding unit, and different folding units are linked through the linkage assembly, so that on one hand, in the process of unfolding the linkage folding goods shelf, if a certain unit is accidentally blocked due to friction of a local structure and the like, all the folding units can stop unfolding, a prompt effect can be achieved, and the situation that goods are placed on the goods shelf board without finding out that a fault unit is not unfolded in time is avoided; on the other hand, the unit without the fault is rotated, and the recovery and the expansion of the fault unit can be realized under the action of the linkage assembly until all the folding units complete the expansion action.

In 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 limiting sliding seat is provided with a mounting hole, the elastic piece is arranged in the mounting hole, the limiting switch is arranged in the mounting hole, and the limiting switch can move relative to the mounting hole. The elastic member has a third end and a fourth end. The third end of the elastic element is connected with the hole wall of the mounting hole, and the fourth end of the elastic element is connected with the limit switch. After the limiting sliding seat slides to the first position, the limiting switch receives the upward elastic force of the elastic piece, the top of the limiting switch extends into the first limiting hole through the mounting hole to limit the limiting sliding seat, the folding frame at the moment is located in the through groove of the mounting seat, and the folding assembly is in a folding state. When folding assembly is unfolded to needs, press limit switch, the elastic component is in compression state, and limit switch no longer carries on spacingly to spacing slide, and spacing slide slides to the second position by the primary importance, and until spacing slide is in the second place, limit switch was under the effect of the elasticity of elastic component this moment, and its top stretches into in the spacing hole of second to carry on spacingly to spacing slide, folding assembly is in the state of unfolding.

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

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 the switch body is connected with the fourth end; the switch head is arranged at the top of the switch body, is positioned in the first hole section and can extend into the first limiting hole or the second limiting hole; one end of the switch handle is connected with the switch body, an extending hole is formed in the hole wall of the second hole section, 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 located above the second hole section and communicated with the through groove.

The aperture of the first bore section is smaller than the aperture of the second bore section, it being understood that the mounting bore is a stepped bore.

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

Further, the spacing slide includes first portion and second portion. First portion and second portion can dismantle the connection, make things convenient for the staff to pull down the latter half after, maintain or change the elastic component.

Furthermore, limit switch includes switch body, switch head and 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 the spacing hole of second. The switch head of the limit switch is the upper half part, the switch body is the 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 the spacing hole of second by the first hole section of mounting hole, and the switch body can not enter into the first hole section of mounting hole. Furthermore, one end of the switch handle is connected with the switch body, an extending hole is formed in the hole wall of the second hole section of the mounting hole and communicated with the sliding groove, and therefore the other end of the switch handle can extend out of the mounting seat through the mounting hole, the extending hole and the sliding groove in sequence. The staff only need be at one side manipulation switch handle of folding subassembly, alright control limit switch. Through setting up mounting hole and limit switch to stair structure, be favorable to reducing limit switch by the ejecting possibility in mounting hole of the elasticity of elastic component.

In the above technical solution, the mount 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 penetrates through the first sliding groove and the second sliding groove 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 limiting hole or the second limiting 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 located at the bottom of the seat body, and the seat body is provided with a first sliding groove. Furthermore, the mounting plate is arranged on one side of the base body, and the first limiting hole and the second limiting hole of the mounting seat are located on the mounting plate. The mounting plate is provided with a second sliding groove, the first sliding groove and the second sliding groove form a sliding groove structure, and the limiting sliding seat penetrates through the first sliding groove and the second sliding groove.

Furthermore, limit switch includes switch body and switch head. Specifically, the switch body is arranged in the first sliding groove and the second sliding groove in a penetrating mode, and the switch body is connected with the fourth end of the elastic piece. The switch head is arranged at the top of the switch body and can extend into the first limiting hole or the second limiting hole.

In the technical scheme, the folding frame is rotatably connected with the connecting frame through the second connecting piece, the mounting seat is provided with the avoiding groove, the limiting sliding seat slides to the first position, and the second connecting piece is positioned in the avoiding 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 the folding leg is connected with the rotation of connecting frame, and the folding leg can rotate relative connecting frame promptly. Be equipped with on the mount pad and dodge the groove, after spacing slide slided to the first position, the second connecting piece can be arranged in dodging 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 above-mentioned technical scheme, the cell wall that leads to the groove is equipped with the spout, is equipped with the pulley on the spacing slide, and the spout is located to the pulley, and the pulley can rotate by relative spout to realize the relative slip of spacing slide and mount pad.

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

In the above technical solution, 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; and the fifth end is connected with the first connecting piece through the elastic shaft sleeve.

In the technical scheme, the linkage assembly comprises a linkage shaft, a gear and an elastic shaft 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, the sixth end of the linkage shaft is connected with the gear, and the gear is arranged at one end, far away from the first connecting piece, of the linkage shaft. Because the first end of folding leg and mount pad are connected through first connecting piece rotation, and first connecting piece and folding leg relatively fixed, consequently, carry out pivoted in-process at the folding leg, first connecting piece can be along with rotating. The linkage shaft and the first connecting piece are relatively fixed, and the first connecting piece can drive the linkage shaft and the gear to rotate together. The linkage folding goods shelf can simultaneously comprise a plurality of folding assemblies, and different folding assemblies are connected in a transmission mode through the linkage assemblies. Only one driving unit can be arranged in the plurality of folding assemblies, and the rest driving units 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 a plurality of folding assembly in the folding goods shelves of linkage in step or expand.

Furthermore, the fifth end of the linkage shaft is connected with the first connecting piece through an elastic shaft sleeve. The elastic sleeve can be understood as an elastic coupling, which has a certain elasticity in the circumferential direction. When the driven unit in the folding goods shelves of folding assembly for the linkage, owing to there is transmission error or assembly error, if the folding leg of initiative unit has offseted with blockking, the folding leg of driven unit has not rotated to extreme position yet, and the elastic shaft sleeve can drive the folding leg small-amplitude rotation of driven unit this moment for the driven unit who still offsets with blockking, can continue to rotate under the action of gravity, until offseting with blockking, in order to eliminate transmission error's influence. In a similar way, when the active unit of folding assembly for in the folding goods shelves of linkage, owing to there is transmission error or assembly error, if the folding leg of driven unit has offseted with blockking, and the folding leg of active unit has not rotated to extreme position yet, and the elastic shaft sleeve can drive the small-amplitude rotation of folding leg of active unit this moment for the active unit that still does not offset with blockking, can continue to rotate under the action of gravity, offset until blockking, in order to eliminate transmission error's influence.

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

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

In this aspect, the linkage assembly includes a first linkage portion. Specifically, first linkage portion links to each other with spacing slide, is equipped with the chute on the first linkage portion. Alternatively, the linkage assembly includes a second linkage portion. Specifically, the second linkage portion is connected with the limiting sliding seat, and the second linkage portion is provided with a roller. It is understood that only one of the first linkage portion and the second linkage portion is provided in each folding assembly, and in different folding assemblies, the rollers and the chutes are matched with each other, so that the folding assemblies can drive the other folding assembly to be unfolded or folded.

Embodiments of a second aspect of the invention provide a linked folding shelf comprising: a shelf board; the folding assembly in any of the above embodiments is mounted on the shelf board.

According to an embodiment of the linked folding shelf, the linked folding shelf comprises a shelf plate and a folding assembly, and the folding assembly is arranged on the shelf plate. The folding assembly mainly plays a supporting role for the goods shelf board. Optionally, the number of the shelf boards is at least two, and the folding assemblies are flexibly arranged according to actual requirements in consideration of the supporting stability degree of the shelf boards, the occupied space size, 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 bulge, and the positioning bulge is matched with the positioning groove.

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

In the technical scheme, the quantity of folding assembly is four, the bottom of pallet board is located to folding assembly's mount pad, four mount pad components are square, four folding assembly are including the horizontal folding assembly of initiative, driven horizontal folding assembly and two are indulged folding assembly, two are indulged folding assembly and are located the both ends of the horizontal folding assembly of initiative respectively, driven horizontal folding assembly sets up with the horizontal folding assembly of initiative relatively, the linkage assembly among the vertical folding assembly is connected with the linkage assembly transmission among the horizontal folding assembly of initiative, and the linkage assembly transmission among the vertical folding assembly is connected with the linkage assembly transmission among the driven horizontal folding assembly.

According to the embodiment of the linked folding goods shelf, the four mounting seats form a square, which can be a square or a rectangle. The four folding assemblies comprise a driving transverse folding assembly, a driven transverse folding assembly and two longitudinal folding assemblies. It can be 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. Two longitudinal folding assemblies are respectively arranged at two ends of the driving transverse folding assembly, the driven transverse folding assembly and the driving transverse folding assembly are arranged oppositely, a linkage assembly in the longitudinal folding assembly is in transmission connection with a linkage assembly in the driving transverse folding assembly, and the linkage assembly in the longitudinal folding assembly is in transmission connection with a linkage assembly in the driven transverse folding assembly.

Different folding units are linked through a linkage assembly, on one hand, in the process of linkage folding shelf unfolding, if a certain unit is accidentally blocked due to friction of a local structure and the like, all the folding units can stop unfolding, so that a prompt effect can be achieved, and the problem that goods are placed on the shelf board without timely finding out that a fault unit is not unfolded is avoided; on the other hand, the unit without the fault is rotated, and the recovery and the expansion of the fault unit can be realized under the action of the linkage assembly until all the folding units complete the expansion action.

Further, the folding leg of the driving transverse folding assembly rotates in the opposite direction of the folding leg of the driven transverse folding assembly. Because the rotation angle of the folding frame is 93 degrees to 95 degrees, when the linkage folding goods 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-shaped structure, and on one hand, the support stability of the folding assembly can be ensured; on the other hand, the folding leg can be prevented from rotating in the direction opposite to the unfolding direction to a large extent.

Wherein, because the linkage folding goods shelves include any folding assembly in above-mentioned first aspect, so have the beneficial effect of any above-mentioned embodiment, no longer describe herein.

Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

FIG. 1 illustrates a first schematic view of a folding assembly in accordance with 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 illustrates a second schematic view of a folding assembly in accordance with one embodiment of the invention;

FIG. 4 illustrates a third schematic view of a folding assembly in accordance with one embodiment of the invention;

FIG. 5 illustrates a fourth schematic view of a folding assembly in accordance with one embodiment of the invention;

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

FIG. 7 illustrates a fifth schematic view of a folding assembly in accordance with an embodiment of the present invention;

FIG. 8 illustrates a sixth schematic view of a folding assembly in accordance with an embodiment of the invention;

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

FIG. 10 illustrates a seventh schematic view of a folding assembly in accordance with an embodiment of the invention;

FIG. 11 illustrates a first schematic view of a linked folding shelf according to one embodiment of the present invention;

FIG. 12 illustrates a second schematic view of a linked folding shelf according to one embodiment of the present invention;

FIG. 13 is an enlarged partial view of portion B of FIG. 12;

FIG. 14 illustrates a third schematic view of a linked folding shelf according to one embodiment of the present invention;

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

FIG. 16 illustrates a fourth schematic view of a linked folding shelf according to one embodiment of the present invention;

FIG. 17 illustrates a fifth schematic view of a linked folding shelf according to one embodiment of the present invention;

FIG. 18 shows a schematic view of a linked folding shelf according to another embodiment of the present invention;

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

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

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

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 21 is:

100: a folding assembly; 110: a mounting seat; 111: a through groove; 112: a chute; 1121: a first chute; 1122: a second chute; 113: a first limit hole; 114: a second limiting hole; 115: an avoidance groove; 116: a base body; 117: mounting a plate; 120: a folding frame; 121: positioning the projection; 122: a first end; 123: a second end; 130: a connecting frame; 131: a yielding groove; 141: a first connecting member; 142: a second connecting member; 150: a blocking member; 160: a linkage assembly; 161: a linkage shaft; 1611: a fifth end; 1612: a sixth terminal; 162: a gear; 163: an elastic shaft sleeve; 164: a first linkage section; 1641: a chute; 165: a second linkage portion; 1651: a roller; 170: a limiting component; 171: a limiting sliding seat; 1711: a first part; 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: mounting holes; 1761: a first bore section; 1762: a second bore section; 1763: an outlet hole; 200: the goods shelf is folded in a linkage manner; 210: a shelf board; 211: positioning a groove; 212: a switch via; 220: a support frame; 230: a protection frame.

Detailed Description

In order that the above objects, features and advantages of the embodiments of the present invention can be more clearly understood, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

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 present invention may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited to the specific embodiments disclosed below.

A folding assembly 100 and a linked folding shelf 200 provided according to some embodiments of the present invention are described below with reference to fig. 1-21.

Example one

As shown in fig. 1, 2, 3, 4, 5, 7, 8 and 10, one embodiment of the present invention provides a folding assembly 100 including a mounting base 110, a folding leg 120 and a limiting assembly 170. The top of the mounting seat 110 is used for being connected with a shelf board 210 of the linked folding shelf 200, a through groove 111 is formed in 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. 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 seat 110 and is rotatably connected with the mounting seat 110, i.e. the folding leg 120 can rotate relative to the mounting seat 110.

It should be noted that the mounting seat 110 may be a channel steel, or may be another structure with a through slot 111.

Further, the spacing assembly 170 includes a spacing slider 171. The limiting slide seat 171 is disposed in the through groove 111, and the limiting slide seat 171 is slidably connected to the mounting seat 110, that is, the limiting slide seat 171 can slide relative to the mounting seat 110. The limiting slider 171 is connected to the folding leg 120. It can be understood that the folding leg 120 will drive the limiting slide 171 to slide in the through slot 111 during the rotation process.

After the limiting slide 171 slides to the first position, the folding leg 120 is located in the through slot 111, and the folding assembly 100 is in the retracted state. When the folding assembly 100 is in the retracted state, the folding frame 120 is located in the through slot 111 of the mounting seat 110, which is beneficial to hiding the folding frame 120 and reducing the occupied space.

The limiting slide 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 slide 171 slides to the second position, the folding assembly 100 is in the unfolded state. In the process that the limiting 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. Because the rotation amplitude of the folding frame 120 is greater than 90 degrees, after the worker places the goods on the shelf board 210 of the linked folding shelf 200, the folding frame 120 of the folding assembly 100 can have a tendency of continuously rotating 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 frame 120, a connecting frame 130, a blocking member 150, a linkage assembly 160 and a limiting assembly 170. The top of the mounting seat 110 is used for being connected with a shelf board 210 of the linked folding shelf 200, a through groove 111 is formed in 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 legs 120 is at least two, that is, the number of the folding legs 120 may be two or more, and the different folding legs 120 are parallel to each other. 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 seat 110 and is rotatably connected with the mounting seat 110 through the first connecting member 141, i.e. the folding leg 120 can rotate relative to the mounting seat 110.

It should be noted that the mounting seat 110 may be a channel steel, or may be another structure with a through slot 111. The first connecting member 141 is a connecting pin, a dowel, or other structure for connection. The first connecting member 141 passes through the groove wall of the through groove 111 and the end of the folding leg 120 to realize the rotational connection of the folding leg 120 and the mounting seat 110.

Further, the connecting frame 130 serves to connect the adjacent two folding frames 120. The connecting frame 130 is rotatably connected with one end of the folding frame 120 far away from the through slot 111. The length direction of the connecting frame 130 is the same as the length direction of the mounting seat 110, and it is understood that a portion of the mounting seat 110, a portion of the connecting 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, that is, the connection frames 130 may be one, two or more, and the connection frames 130 are flexibly arranged in consideration of connection strength, size of occupied space, cost and other factors. By providing the connecting frame 130, the different folding frames 120 in the same folding assembly 100 can be rotated synchronously.

Further, as shown in fig. 9, the connecting frame 130 is provided with a relief groove 131, and the folding frame 120 passes through the relief groove 131 and is rotatably connected with the connecting frame 130. By providing the receding groove 131, the interference of the folding leg 120 with the connecting leg 130 can be largely avoided.

Further, as shown in fig. 1, 5 and 7, the blocking member 150 is disposed in the through groove 111 of the mounting base 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 role of limiting. The blocking member 150 and the mounting base 110 can be detachably connected through bolts or other methods; or, the blocking member 150 and the mounting seat 110 are of an integrated structure, and compared with a post-processing mode, 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, a magnet is disposed on the blocking member 150, 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 the staff member to unfold the folding assembly 100.

Further, as shown in fig. 1 and 2, the limit assembly 170 includes a limit slider 171, a connecting rod 173, and a limit switch 174. The limiting slide seat 171 is disposed in the through groove 111, and the limiting slide seat 171 is slidably connected to the mounting seat 110, that is, the limiting slide seat 171 can slide relative to the mounting seat 110. One end of the connecting rod 173 is rotatably connected to the restricting slider 171, and the other end of the connecting rod 173 is rotatably connected to one of the folding legs 120. In other words, the connection rod 173 can rotate relative to the restricting slider 171, and the connection rod 173 can rotate relative to the folding leg 120. During the rotation of the folding leg 120, the connecting rod 173 drives the limiting slide 171 to slide in the sliding slot 112. Further, the top of the mounting base 110 is provided with a first limiting hole 113 and a second limiting hole 114, 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 slide 171, and the limit switch 174 can extend into the first limit hole 113 or the second limit hole 114. The limit switch 174 is inserted into the first limit hole 113 or the second limit hole 114, so that the limit slider 171 can be limited, and the folding leg 120 is kept at a certain position and does not rotate.

As shown in fig. 4, after the limiting slide 171 slides to the first position, the limiting switch 174 can extend into the first limiting hole 113, and the folding leg 120 is located in the through slot 111 at this time, and the folding assembly 100 is in the retracted state. When the folding assembly 100 is in the retracted state, the folding frame 120 is located in the through slot 111 of the mounting seat 110, which is beneficial to hiding the folding frame 120 and reducing the occupied space.

As shown in fig. 1 and fig. 3, after the limiting slide 171 slides to the second position, the limiting switch 174 can extend into the second limiting hole 114, and the folding leg 120 abuts against the blocking member 150 at this time, so that the folding assembly 100 is in the unfolded state. In the process that the limiting 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 range of the alpha is 93 degrees to 95 degrees. Because the rotation amplitude of the folding frame 120 is greater than 90 degrees, after the worker places the goods on the shelf board 210 of the linked folding shelf 200, the folding frame 120 of the folding assembly 100 can have a tendency of continuously rotating 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 to the first link 141. Since the first end 122 of the folding frame 120 is rotatably connected to the mounting base 110 through the first connecting member 141, and the first connecting member 141 is relatively fixed to the folding frame 120, the first connecting member 141 rotates along with the folding frame 120. The first link 141 also rotates with the linkage assembly 160. Alternatively, as shown in fig. 21, the linkage assembly 160 is connected to the limiting slide 171, and the linkage assembly 160 moves along with the limiting slide 171 during the sliding process in the through groove 111.

As shown in fig. 11 and 12, the linked folding shelf 200 may simultaneously include a plurality of folding assemblies 100, and the different folding assemblies 100 are drivingly connected by the linking assembly 160. There may be only one driving unit in the plurality of folding assemblies 100, with the remainder being driven units; 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 linkage folding shelf 200 can be folded or unfolded simultaneously.

Each folding assembly 100 in the linked folding shelf 200 is regarded as a folding unit, and different folding units are linked through the linkage assembly 160, so that on one hand, in the process of unfolding the linked folding shelf 200, if a certain unit is accidentally stuck due to friction of a local structure and the like, all the folding units can stop unfolding, a prompt effect can be achieved, and the situation that goods are placed on the shelf board 210 without finding out that a fault unit is not unfolded in time is avoided; on the other hand, when the non-fault unit is rotated, the fault unit can be restored and unfolded under the action of the linkage assembly 160 until all the folding units are unfolded.

EXAMPLE III

As shown in fig. 1 and 2, the stop assembly 170 further includes an elastic member 175. Specifically, the limit slide 171 is provided with a mounting hole 176, the elastic member 175 is disposed in the mounting hole 176, and the limit switch 174 can move 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 member 175 is connected to the wall of the mounting hole 176, and the fourth end 1752 of the elastic member 175 is connected to the limit switch 174. After the limiting sliding seat 171 slides to the first position, the limiting switch 174 is subjected to upward elastic force of the elastic member 175, the top of the limiting switch 174 extends into the first limiting hole 113 through the mounting hole 176 to limit the limiting sliding seat 171, the folding leg 120 is located in the through groove 111 of the mounting seat 110 at this time, and the folding assembly 100 is in the retracted state. When the folding assembly 100 needs to be unfolded, the limit switch 174 is pressed, the elastic member 175 is in a compressed state, the limit switch 174 no longer limits the limit slide seat 171, 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, under the action of the elastic force of the elastic member 175, the top of the limit switch 174 extends into the second limit hole 114 to limit the limit slide seat 171, and the folding assembly 100 is in an unfolded state.

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

Example four

As shown in FIG. 2, mounting hole 176 includes a first hole segment 1761 and a second hole segment 1762. Specifically, first bore segment 1761 and second bore segment 1762 communicate with one another. First bore section 1761 is located above second bore section 1762 and first bore section 1761 is in communication with through-slot 111. First bore segment 1761 has a smaller bore diameter than second bore segment 1762, it being understood that mounting bore 176 is a stepped bore.

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 the limit switch 174 can extend into the first limit hole 113 or the second limit hole 114 from the first hole 1761 of the mounting hole 176, and the lower half of the limit switch 174 cannot enter the first hole 1761 of the mounting hole 176.

Further, as shown in fig. 2, the limiting slide 171 includes a first portion 1711 and a second portion 1712. First portion 1711 and second portion 1712 can dismantle the connection, make things convenient for the staff to pull down the latter half after, maintain or change elastic component 175.

Further, as shown in fig. 2, the limit switch 174 includes a switch body 1741, a switch head 1742, and a switch handle 1743. Specifically, switch body 1741 is located within second bore segment 1762 of mounting bore 176, switch head 1742 is located at the top of switch body 1741, and switch head 1742 is located in first bore segment 1761 and cannot enter first bore segment 1761. The switch body 1741 is connected to the fourth end 1752 of the elastic member 175, and the switch head 1742 can extend into the first stopper hole 113 or the second stopper hole 114. It is understood that the switch head 1742 of the limit switch 174 is in the upper half, the switch body 1741 is in the lower half of the limit switch 174, and the size of the switch head 1742 is smaller than that of the switch body 1741. The switch head 1742 can extend from the first hole 1761 of the mounting hole 176 into the first limiting hole 113 or the second limiting hole 114, and the switch body 1741 cannot enter the first hole 1761 of the mounting hole 176. Further, one end of the switch handle 1743 is connected to the switch body 1741, the wall of the mounting hole 176 is provided with a protruding hole 1763, and the protruding hole 1763 is communicated with the sliding groove 112, so that the other end of the switch handle 1743 can sequentially extend out of the mounting seat 110 through the mounting hole 176, the protruding hole 1763 and the sliding groove 112. The limit switch 174 can be controlled by the operator by merely manipulating the switch handle 1743 on one side of the folding assembly 100. By providing the mounting hole 176 and the limit switch 174 with 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 mounting base 110 includes a base body 116 and a mounting plate 117, i.e., the mounting base 110 is divided into two parts. Specifically, the through slot 111 of the mounting base 110 is located at the bottom of the base 116, and the base 116 is provided with a first sliding slot 1121. Further, the mounting plate 117 is disposed on one side of the seat 116, and the first limiting hole 113 and the second limiting hole 114 of the mounting seat 110 are disposed on the mounting plate 117. The mounting plate 117 is provided with a second sliding groove 1122, the first sliding groove 1121 and the second sliding groove 1122 are communicated and form a sliding groove structure, and the limiting sliding seat 171 penetrates through the first sliding groove 1121 and the second sliding groove 1122.

Further, the limit switch 174 includes a switch body 1741 and a switch head 1742. Specifically, the switch body 1741 is inserted into the first sliding slot 1121 and the second sliding slot 1122, and the switch body 1741 is connected to the fourth end 1752 of the elastic member 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 connected to the connecting leg 130 by a second connecting member 142. By providing the second connecting member 142, and the second connecting member 142 passes through the folding leg 120 and the mounting seat 110, the folding leg 120 and the connecting leg 130 can be rotatably connected, that is, the folding leg 120 can rotate relative to the connecting leg 130. Be equipped with on mount pad 110 and dodge groove 115, after spacing slide 171 slides to first position, second connecting piece 142 can be located and dodge groove 115 for can accomodate in logical groove 111 of mount pad 110 after folding leg 120 rotates, conveniently hide folding leg 120, reduce occupation space.

In another embodiment, as shown in fig. 3 and 4, linkage assembly 160 includes a linkage shaft 161, a gear 162, and an elastic bushing 163. Specifically, linkage shaft 161 has a fifth end 1611 and a sixth end 1612 (as shown in FIG. 3). The fifth end 1611 of the linkage shaft 161 is connected to the first connecting member 141, and the sixth end 1612 of the linkage shaft 161 is connected to the gear 162, that is, the gear 162 is disposed at an end of the linkage shaft 161 away from the first connecting member 141. Since the first end 122 of the folding frame 120 is rotatably connected to the mounting base 110 through the first connecting member 141, and the first connecting member 141 is relatively fixed to the folding frame 120, the first connecting member 141 rotates along with the folding frame 120. The linkage shaft 161 and the first connecting member 141 are fixed relatively, and the first connecting member 141 also drives the linkage shaft 161 and the gear 162 to rotate together. The linked folding shelf 200 may include a plurality of folding assemblies 100 at the same time, with the various folding assemblies 100 being drivingly connected by the linkage assembly 160. There may be only one driving unit in the plurality of folding assemblies 100, with the remainder being driven units; 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 linkage folding shelf 200 can be folded or unfolded simultaneously.

Further, the fifth end 1611 of the linkage shaft 161 is connected to the first connecting member 141 through the elastic bushing 163. The elastic sleeve 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, because there is a transmission error, if the folding leg 120 of the driving unit already abuts against the blocking member 150, the folding leg 120 of the driven unit has not yet rotated to the limit position, and at this time, the elastic shaft sleeve 163 can drive the folding leg 120 of the driven unit to rotate by a small amount, so that the driven unit which has not abutted against the blocking member 150 can continue to rotate under the action of gravity until abutting against the blocking member 150, so as to eliminate the influence of the transmission error. Similarly, when the folding assembly 100 is the driving unit in the linked folding shelf 200, because there is a transmission error or an assembly error, if the folding leg 120 of the driven unit already abuts against the blocking member 150, and the folding leg 120 of the driving unit has not yet rotated to the limit position, at this time, the elastic shaft sleeve 163 can drive the folding leg 120 of the driving unit to rotate by a small amount, so that the driving unit which has not abutted against the blocking member 150 can continue to rotate under the action of gravity until abutting against the blocking member 150, so as to eliminate the influence of the transmission error.

It is worth noting that the elastic collar 163 is capable of storing elastic potential energy. As shown in fig. 3 and 18, the gear 162 of the linkage assembly 160 may be a straight gear or a bevel gear, and may be 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 limiting slide 171, and an inclined groove 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 position limiting slide 171, and a roller 1651 is disposed on the second linkage portion 165. It is understood that each folding assembly 100 is provided with only one of the first linkage 164 and the second linkage 165, and that in different folding assemblies 100, the roller 1651 cooperates with the chute 1641 such that the folding assembly 100 can bring another folding assembly 100 to unfold or fold.

EXAMPLE six

As shown in fig. 3, 4 and 5, the groove wall of the through groove 111 is provided with a sliding groove 112, the limiting sliding seat 171 is provided with a pulley 172, the pulley 172 is provided on the sliding groove 112, and the pulley 172 can rotate relative to the sliding groove 112 to realize the relative sliding between the limiting sliding seat 171 and the mounting seat 110. Because the pulley 172 can rotate relative to the sliding chute 112, the pulley 172 moves in the sliding chute 112 in a rolling forward manner, and compared with the manner that the pulley 172 is fixedly connected with the limiting sliding seat 171, the design manner is that rolling friction replaces sliding friction, which is beneficial to reducing the friction resistance between the pulley 172 and the sliding chute 112, and further reducing the risk of clamping stagnation during the sliding process.

Further, the number of the sliding grooves 112 is two, 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, two of the pulleys 172 are located on one side of the limiting sliding seat 171, the other two pulleys 172 are located on the other side of the limiting sliding seat 171, and the two pulleys 172 located on the same side of the limiting sliding seat 171 are matched with the corresponding one of the sliding grooves 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 number of the pulleys 172 are controlled, the connection strength between the limiting sliding seat 171 and the mounting seat 110 is ensured, and the cost is favorably controlled. In addition, the two pulleys 172 on the same side of the limiting sliding seat 171 are matched with one corresponding sliding groove 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, the linked folding shelf 200 according to an embodiment of the present invention includes a shelf plate 210 and the folding assembly 100 of the above embodiment, wherein the folding assembly 100 is disposed on the shelf plate 210. The folding assembly 100 primarily serves as a support for the deck boards 210. Alternatively, the number of the deck boards 210 is at least two, and the folding assemblies 100 can be flexibly arranged according to actual needs in consideration of the stability of the support of the deck 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 slot 211, and the folding leg 120 of the folding assembly 100 is provided with a positioning protrusion 121, and the positioning protrusion 121 is matched with the positioning slot 211. Through setting up location arch 121 and constant head tank 211 for linkage folding shelf 200 is at the stacking in-process, folding assembly 100 can with shelf board 210 interconnect, improve stability. In addition, the volume of the linked folding shelf 200 in the folded state can be reduced.

In another embodiment, the number of folding assemblies 100 is four. The mounting base 110 of each folding assembly 100 is disposed at the bottom of the shelf board 210, and the four mounting bases 110 form a square, either a square or a rectangle. The four folding assemblies 100 include a driving lateral folding assembly, a driven lateral folding assembly, and two longitudinal folding assemblies. It is understood 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. Two longitudinal folding assemblies are respectively arranged at two ends of the driving transverse folding assembly, the driven transverse folding assembly and the driving transverse folding assembly are arranged oppositely, 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.

Different folding units are linked through the linkage assembly 160, on one hand, in the process of unfolding the linkage folding shelf 200, if a certain unit is accidentally stuck due to friction of a local structure and the like, all the folding units can stop unfolding, so that a prompt effect can be achieved, and the situation that goods are placed on the shelf plate 210 without being accidentally found that a fault unit is not unfolded in time is avoided; on the other hand, when the non-fault unit is rotated, the fault unit can be restored and unfolded under the action of the linkage assembly 160 until all the folding units are unfolded.

Further, as shown in fig. 14 and 16, the folding leg 120 of the driving cross-folding assembly 100 rotates in the opposite direction to the folding leg 120 of the driven cross-folding assembly 100. Since 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 horizontal folding assembly 100 and the folding frame 120 in the driven horizontal folding assembly 100 form a similar eight shape, on one hand, the support stability of the folding assembly 100 can be ensured; on the other hand, the folding leg 120 can be prevented from being rotated in the direction opposite to the unfolding direction to a large extent.

Further, as shown in fig. 12, the linked folding shelf 200 further includes a support frame 220, the mounting seats 110 in different folding assemblies 100 are connected by the support frame 220, and the support frame 220 can 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 flexible arrangement is performed according to the actual requirement.

Further, as shown in fig. 12 and 13, the linked folding shelf 200 further includes a protection frame 230. The protection bracket 230 is arranged on one side of the mounting base 110, and the switch handle 1743 in the folding assembly 100 passes through the protection bracket 230, so that the switch handle 1743 can be conveniently controlled by a worker. By providing the protection frame 230, on one hand, the structural strength of the mount base 110 can be improved to some extent; on the other hand, the mounting seat 110 can be protected. It should be noted that the protection frame 230 may be U-shaped, or may be in other shapes.

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

Example eight

As shown in fig. 1, the active cross-axis unit (i.e., the folding assembly 100) is composed of a cross-axis base (i.e., the mounting base 110), a cross-axis folding frame (i.e., the folding frame 120), a cross-axis base plate (i.e., the connecting frame 130), and a cross-axis backrest (i.e., the blocking member 150). The transverse shaft 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 shaft 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 base plate form a parallelogram. Optionally, the spacing between adjacent two of the cross-folding frames is the same everywhere. The transverse folding frame rotates on the transverse shaft seat together by arranging the transverse shaft bottom plate. The transverse folding frame is folded towards the inside of the transverse shaft seat when rotating anticlockwise, and is unfolded from the transverse shaft seat when rotating clockwise. The horizontal axis backer has the function of limiting the unfolding angle alpha of the horizontal folding frame, and alpha can be a value from 93 degrees to 95 degrees. A magnet (not shown in fig. 1) is fixed on the horizontal axis backer, and the function is that when the horizontal folding frame reaches the vertical position of 90 degrees, the horizontal folding frame can continue to rotate through magnetic force until the horizontal folding frame abuts against the horizontal axis backer, so that the unfolding angle alpha of the horizontal folding frame in the active horizontal axis unit reaches the designed value.

In another embodiment, as shown in fig. 2, the switch unit (i.e., the limit stop assembly 170) includes a switch link (i.e., the connecting rod 173), a switch carriage (i.e., the first portion 1711 of the limit carriage 171), a switch base plate (i.e., the second portion 1712 of the limit carriage 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 and the mounting hole 176 of the switch sliding seat form an enveloping space, a certain stroke is given to the switch column and the pressure spring in the vertical direction, and meanwhile, the switch column extends upwards through the switch hole (the first limiting hole 113 or the second limiting hole 114) under the action of the elastic force of the pressure spring. The length of the mounting hole 176 allows the switch post to extend out of the cross bar mount and also allows the switch post to retract fully into the switch slide without interference from the cross bar mount. Optionally, the switch bottom plate is connected with the switch slide from the switch slide below through the screw, can conveniently change the pressure spring.

In another embodiment, as shown in fig. 3, the traverse shaft seat is a semi-closed beam (i.e. a mounting seat 110 with a through slot 111 at the bottom) with a downward opening, and sliding slots (i.e. sliding slots 112) are symmetrically formed at two sides of the traverse shaft seat near the switch unit. Two pulleys 172 are provided on either side of the switch carriage (i.e., the number of pulleys 172 is four in total), and the pulleys 172 can roll in the sliding grooves, so that the switch carriage can move laterally along the cross-bar. The top end of the horizontal 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 horizontal shaft seat is also provided with a plurality of positioning grooves. The two sides of the cross shaft seat are also provided with accommodating grooves (namely avoiding grooves 115), and the number of the accommodating grooves is consistent with that of the transverse folding frames. As shown in fig. 3, the foldable frame is unfolded on the horizontal shaft seat, and the switch post can protrude from the switch hole (i.e., the second limit hole 114) on the left side.

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

In another embodiment, as shown in fig. 6, the switch post includes a switch head 1742, a switch body 1741, and a switch handle 1743. Wherein the switch head can extend out of the switch hole, the switch body slides in the mounting hole of the switch slide, and the switch handle extends out of the side groove (i.e., the extension 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 sliding seat, and the switch sliding seat can transversely move along the transverse shaft seat at the moment.

As shown in fig. 9, the bottom of the transverse folding frame is further provided with a transverse positioning protrusion (i.e. positioning protrusion 121), and the transverse base plate is provided with an abdicating groove 131, which is used for providing an abdicating space for the transverse positioning protrusion during the folding process of the transverse folding frame, so as to prevent the interference between the transverse base plate and the transverse positioning protrusion.

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

As shown in fig. 4, after the transverse folding frame is folded due to the counterclockwise rotation, the transverse folding frame moves the switch slider 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-axis unit (i.e., folding assembly 100) comprises a cross-axis base (i.e., mount 110), a cross-folding stand (i.e., folding stand 120), a driven cross-axis base plate (i.e., attachment stand 130), and a cross-axis cam (i.e., stop 150). The horizontal shaft seat, the horizontal folding frame and the driven horizontal 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 between 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 cross shaft bottom plate is provided with a yielding groove 131 which is used for providing a yielding space for the cross positioning bulge in the folding process of the cross folding frame and preventing the interference between the cross shaft bottom plate and the cross positioning bulge.

Further, a magnet (not shown in fig. 5) is fixed to the horizontal axis backer, and functions to enable the horizontal folding rack to continue to rotate by magnetic force until the horizontal folding rack abuts against the horizontal axis backer when the horizontal folding rack reaches the vertical position of 90 degrees, so that the unfolding angle β of the driven horizontal axis unit reaches a design value between 93 degrees and 95 degrees.

Furthermore, a linkage mechanism is arranged on the driven horizontal shaft unit. The coupler is fixedly connected with a pin (namely, 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 coupler and the linkage shaft. The coupling has a certain elasticity in the circumferential direction.

In another embodiment, as shown in fig. 8, the longitudinal folding unit (i.e., folding assembly 100) comprises a longitudinal shaft base (i.e., mounting base 110), a longitudinal folding leg (i.e., folding leg 120), a longitudinal shaft base (i.e., attachment base 130), and a longitudinal shaft 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 shaft bottom 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 storage groove (namely an avoiding groove 115). The function of the accommodating groove is to provide an accommodating space for the pin (i.e. the second connecting piece 142) of the longitudinal shaft base plate, and reduce the folding volume of the longitudinal folding frame on the longitudinal shaft base. The longitudinal shaft bottom plate is provided with a yielding groove which is used for providing a yielding space for the longitudinal positioning protrusion of the longitudinal folding frame and preventing the longitudinal shaft bottom plate from interfering with the longitudinal positioning protrusion.

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

Furthermore, 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.

Furthermore, a linkage mechanism is arranged on the vertical shaft unit. The coupler is fixedly connected with a pin (namely, 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 coupler and the linkage shaft. The coupling has a certain elasticity in the circumferential direction.

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

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

Further, as shown in fig. 12, the linked folding shelf 200 further includes a support frame 220, a handle, a switch guard (i.e., guard 230), and a shelf plate 210. The supporting frame 220 is located between the driving horizontal axis unit, the vertical axis unit a, the vertical axis unit B and the driven horizontal axis unit, and the supporting frame 220 has a through hole 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 functions of improving the connection strength of the driving transverse shaft unit, the longitudinal shaft unit A, the longitudinal shaft unit B and the driven transverse shaft unit; secondly, the fixing rigidity of the linkage shaft 161 is improved; and third to support the shelf board 210. A plurality of handles are arranged on the outer sides of 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 on the outer side of the switch column of the driving transverse shaft unit, and a groove is formed in the switch protection frame to allow a switch handle 1743 of the switch column to extend out.

As shown in fig. 14 and 16, when the lateral folding legs and the vertical folding legs are completely unfolded, since the unfolding angles α, β, and γ are all the same values between 93 degrees and 95 degrees, the lateral folding legs of the driving lateral axis unit and the lateral folding leg holder of the driven lateral axis unit are arranged in a splayed shape, and the vertical folding legs of the vertical axis unit a and the vertical axis unit B are also arranged in a splayed shape. The support structure has the advantages that firstly, the support stability of the transverse folding frame and the longitudinal folding frame is improved, and the transverse folding frame and the longitudinal folding frame mainly bear the compressive stress in the gravity direction and do not bear overlarge bending stress; secondly, under the action of the gravity of the linked folding goods shelf 200 and the goods loaded thereon, the transverse folding shelf and the longitudinal folding shelf cannot rotate in the folding direction to be retracted (if the transverse folding shelf and the longitudinal folding shelf rotate in the folding direction, the linked folding goods shelf 200 and the weight need to be jacked up against the gravity, 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), and only the transverse axis stopper (i.e. the blocking piece 150) and the longitudinal axis stopper (i.e. the blocking piece 150) can be respectively propped against, so that the stability of the mechanism of the linked folding goods shelf 200 when the weight is loaded can be maintained.

Since the linkage (i.e., the linkage assembly 160) has a transmission error and the lateral axis stopper and the longitudinal axis stopper have an assembly error, when the lateral folding frame of the driving lateral axis unit has abutted against the lateral axis stopper and the lateral folding frame of the driving lateral axis unit has failed to continue to rotate, the longitudinal folding frame of the longitudinal axis unit and the lateral folding frame of the driven lateral axis unit may not abut against the corresponding longitudinal axis stopper and lateral axis stopper, but since the couplers are elastic couplers having elasticity in the circumferential direction, the longitudinal folding frame of the longitudinal axis unit and the lateral folding frame of the driven lateral axis unit may continue to rotate slightly under the magnetic force of the magnets on the longitudinal axis stopper and the lateral axis stopper until reaching the unfolded position under the magnetic force.

As shown in fig. 11, the shelf board 210 has transverse positioning slots, longitudinal positioning slots (i.e., positioning slots 211), and switch vias 212. The number and the positions of the transverse positioning grooves are matched with the transverse positioning bulges of the transverse folding frame, and the transverse positioning bulges can be inserted into the transverse positioning grooves; the longitudinal positioning groove is matched with the longitudinal positioning bulge of the longitudinal folding frame, and the longitudinal positioning bulge can be inserted into the longitudinal positioning groove. The transverse positioning grooves, the longitudinal positioning grooves, the transverse positioning protrusions and the longitudinal positioning protrusions are arranged, so that when the plurality of linked folding goods shelves 200 are stacked, a certain connection relation can be formed between the transverse direction and the longitudinal direction, and the stability of the stacking is kept.

According to the embodiment of the folding assembly and the linked folding goods shelf, after the limiting slide seat slides to the first position, the limiting switch can extend into the first limiting hole, the folding frame is located in the through groove at the moment, and the folding assembly is in a folded state. Because folding assembly is in when packing up the state, the folding leg is arranged in the logical groove of mount pad, is favorable to hiding the folding leg, reduces occupation space. After the limiting slide base slides to the second position, the limiting switch can stretch into the second limiting hole, the folding leg at the moment is abutted to the blocking piece, and the folding assembly is in an unfolding state. In the process that the limiting sliding seat slides from the first position to the second position, the rotating angle of the folding frame is alpha, and the value range of the alpha is 93 degrees to 95 degrees. Because the rotation range of folding leg is greater than 90 degrees, after the staff placed the goods on the shelf board of the folding goods shelves of linkage, folding leg of folding assembly can have the trend that continues to the rotation of expansion direction under the action of gravity, avoids the folding leg to rotate to the direction opposite with the expansion direction, is favorable to improving folding assembly's support stability.

In the present invention, the terms "first", "second", and "third" 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 limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means 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 invention. In this specification, the schematic representations of the terms used above 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, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement 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) comprising:

the mounting structure comprises a mounting base (110), wherein a through groove (111) is formed in the bottom of the mounting base (110);

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 base (110);

a stop assembly (170) comprising:

the limiting sliding seat (171) is arranged in the through groove (111), the limiting sliding seat (171) is connected with the mounting seat (110) in a sliding manner, 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 located in the through groove (111); the limiting sliding seat (171) slides from the first position to the second position, the rotating angle of the folding frame (120) is alpha, and the value of the alpha is larger than 90 degrees.

2. The folding assembly (100) of claim 1, wherein the mounting seat (110) is provided with a first limiting hole (113) and a second limiting hole (114), the first limiting hole (113) is communicated with the through slot (111), and the second limiting hole (114) is communicated with the through slot (111), the limiting assembly (170) further comprising:

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

3. The folding assembly (100) of claim 1 or 2, wherein α ranges from 93 degrees to 95 degrees.

4. Folding assembly (100) according to claim 1 or 2, characterized in that said folding legs (120) are at least two in number, two adjacent folding legs (120) being arranged 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 rotatably connected with the second end (123), and the length direction of the connecting frame (130) is consistent with that of the mounting base (110).

5. The folding assembly (100) of claim 1 or 2, characterized in that the first end (122) is rotatably connected to the mounting seat (110) by a first connecting member (141), the first connecting member (141) being mutually fixed to the folding leg (120).

6. The folding assembly (100) of claim 1 or 2, 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 abutted to the blocking piece (150).

7. The folding assembly (100) of claim 1 or 2, wherein the stop assembly (170) further comprises:

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

8. The folding assembly (100) of claim 5, further comprising:

the linkage assembly (160), the linkage assembly (160) with first connecting piece (141) link to each other, or the linkage assembly (160) with spacing slide (171) link to each other.

9. The folding assembly (100) of claim 2, wherein said restraining carriage (171) is provided with a mounting hole (176), said restraining assembly (170) further comprising:

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.

10. The folding assembly (100) of claim 9 wherein said mounting hole (176) includes a first hole segment (1761) and a second hole segment (1762) in communication with each other, said first hole segment (1761) being located above said second hole segment (1762), said first hole segment (1761) having a smaller bore diameter than said second hole segment (1762);

the limit switch (174) includes:

a switch body (1741) located within said second bore segment (1762) and inaccessible to said first bore segment (1761), said switch body (1741) connected to said fourth end (1752);

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

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

11. The folding assembly (100) of claim 9, wherein said mounting base (110) comprises:

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

the mounting plate (117) is arranged on one side of the seat body (116), the first limiting hole (113) and the second limiting hole (114) are both located 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:

a switch body (1741) disposed through the first sliding slot (1121) and the second sliding slot (1122), wherein the switch body (1741) is connected to the fourth end (1752);

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

12. The folding assembly (100) of claim 4, wherein the folding leg (120) and the connecting leg (130) are rotatably connected by a second connecting member (142), the mounting seat (110) is provided with an avoiding groove (115), the limiting slide (171) slides to the first position, and the second connecting member (142) is located in the avoiding groove (115).

13. The folding assembly (100) according to claim 1 or 2, wherein a sliding groove (112) is formed in a wall of the through groove (111), a pulley (172) is formed on the limiting sliding seat (171), the pulley (172) is disposed on the sliding groove (112), and the pulley (172) can rotate relative to the sliding groove (112) to realize relative sliding between the limiting sliding seat (171) and the mounting seat (110).

14. The folding assembly (100) according to claim 13, wherein the number of sliding slots (112) is two, two sliding slots (112) are respectively located on two opposite slot walls of the through slot (111), the number of the pulleys (172) is four, two of the pulleys (172) are located on one side of the limiting slide (171), the other two pulleys (172) are located on the other side of the limiting slide (171), and two of the pulleys (172) located on the same side of the limiting slide (171) are engaged with a corresponding one of the sliding slots (112).

15. The folding assembly (100) of claim 8, wherein said linkage assembly (160) comprises:

a linkage shaft (161) having a fifth end (1611) and a sixth end (1612), the fifth end (1611) being connected to the first connector (141);

a gear (162) disposed at the sixth end (1612);

an elastic shaft sleeve (163), wherein the fifth end (1611) is connected with the first connecting piece (141) through the elastic shaft sleeve (163).

16. The folding assembly (100) of claim 8, wherein said linkage assembly (160) comprises:

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

And the second linkage part (165) is connected with the limiting sliding seat (171), and a roller (1651) is arranged on the second linkage part (165).

17. A linked folding pallet (200) comprising:

a deck board (210);

the folding assembly (100) of any of claims 1 to 16, disposed on the deck boards (210).

18. The linked folding pallet (200) according to claim 17, characterized in that the pallet board (210) is provided with positioning slots (211), the folding leg (120) of the folding assembly (100) is provided with positioning protrusions (121), and the positioning protrusions (121) are engaged with the positioning slots (211).

19. The linked folding pallet (200) of claim 17, the number of the folding assemblies (100) is four, the mounting seats (110) of the folding assemblies (100) are arranged at the bottom of the goods shelf plate (210), the four mounting seats (110) form a square shape, 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 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 a linkage assembly (160) in the longitudinal folding assembly is in transmission connection with a linkage assembly (160) in the driven transverse folding assembly.