Material frame capable of being placed in stacking mode

Abstract

The invention relates to the technical field of intelligent warehousing, and particularly discloses a stackable material frame which comprises a material frame body, the material frame body comprises a plurality of supporting legs located at the bottom of the material frame body and a plurality of positioning heads located at the top of the material frame body and corresponding to the supporting legs, and positioning insertion holes allowing the positioning heads to be inserted are formed in the bottom faces of the supporting legs; the positioning head comprises a bearing platform and a first positioning part connected with the top surface of the bearing platform, the first positioning part protrudes upwards, and the outer diameter of the first positioning part is gradually reduced in the upward direction; a convex ring is arranged on the inner wall of the positioning insertion hole, the inner side of the convex ring comprises a first guide part, the positioning insertion hole further comprises a second guide part located below the first guide part, the inner diameters of the first guide part and the second guide part are gradually reduced in the upward direction, and the inner diameter of the top end of the second guide part is larger than the inner diameter of the bottom end of the first guide part. According to the material frame stacking device, the material frames can be conveniently and accurately aligned during stacking.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent warehousing, and particularly relates to a stackable material frame. BACKGROUND

[0002] In the field of intelligent warehousing, material frames are commonly used for storage and turnover of materials. In order to reduce the space occupied by the material frame, the existing material frame is usually stacked, as shown in the Chinese patent with the publication number CN220949224U. The material frame in the patent document is positioned by the cooperation of the positioning head and the positioning base. However, when there are special conditions such as uneven ground, the positioning structure still has the problem of inconvenience in alignment. SUMMARY

[0003] The present application provides a stackable material frame, which facilitates accurate alignment of the material frame when stacked.

[0004] To solve the above problems, the present application adopts the following technical scheme: The embodiment of the present application provides a stackable material frame, which comprises a material frame body, the material frame body comprises a plurality of supporting feet at the bottom thereof and a plurality of positioning heads corresponding to the supporting feet at the top thereof, and the bottom surface of the supporting feet is provided with a positioning insertion hole for the positioning head to be inserted; the positioning head comprises a bearing platform and a first positioning part connected to the top surface of the bearing platform, the first positioning part protrudes upward, and the outer diameter of the first positioning part gradually decreases in the upward direction; the inner wall of the positioning insertion hole is provided with a convex ring, the inner side of the convex ring comprises a first guide part, and the positioning insertion hole further comprises a second guide part below the first guide part, the inner diameters of the first guide part and the second guide part gradually decrease in the upward direction, and the inner diameter of the top end of the second guide part is greater than the inner diameter of the bottom end of the first guide part; when two material frame bodies are stacked, the first positioning part of the lower material frame body is inserted into the first guide part of the upper material frame body, and the convex ring of the upper material frame body abuts against the top surface of the bearing platform of the lower material frame body.

[0005] In some embodiments, the second guide part comprises an upper guide part and a lower guide part, the upper guide part is located at the top of the lower guide part, and the bottom end of the upper guide part is connected to the top end of the lower guide part; the included angle between the inner side wall of the upper guide part and the horizontal direction is greater than the included angle between the inner side wall of the lower guide part and the horizontal direction.

[0006] In some embodiments, the inner side surface of the upper guide part is located on the extension surface of the inner side surface of the first guide part.

[0007] In some embodiments, the positioning head further comprises a second positioning part, the second positioning part is located at the bottom of the platform, the top end of the second positioning part is connected with the bottom end of the platform, the outer diameter of the second positioning part gradually decreases in the upward direction, and the outer side wall of the platform is equidiameter.

[0008] In some embodiments, the outer side surface of the second positioning part is located on the extension surface of the outer side surface of the first positioning part.

[0009] In some embodiments, the positioning head further comprises a round head part located at the top end of the first positioning part, and the surface of the round head part is arc-shaped.

[0010] In some embodiments, the material frame body further comprises a bottom frame, two side column assemblies, two front columns, a rear fence assembly and a front pull rod, the two side column assemblies are respectively located at the left side and the right side of the bottom frame, the two front columns are respectively located at the left side and the right side of the front side of the bottom frame, and the rear fence assembly is located at the rear side of the bottom frame, each of the two side column assemblies comprises a side column; the bottom frame is provided with four connecting holes matched with the two side columns and the two front columns, the lower ends of the two side columns and the two front columns are respectively inserted into the matched connecting holes, and the two side columns and the two front columns are fixedly connected with the bottom frame; the two ends of the front pull rod are respectively inserted into the two front columns and are fixedly connected with the two front columns; the front ends of the two side column assemblies are respectively inserted into the two front columns and are fixedly connected with the two front columns; the rear fence assembly is inserted into the bottom frame and the two side column assemblies, and is fixedly connected with the bottom frame and the two side column assemblies.

[0011] In some embodiments, the rear fence assembly comprises a rear pull rod and an inclined pull rod, the two ends of the rear pull rod are respectively inserted into the two side column assemblies and are fixedly connected with the two side column assemblies, and the two ends of the inclined pull rod are respectively inserted into the bottom frame and one of the side column assemblies and are fixedly connected with the bottom frame and the side column assembly.

[0012] In some embodiments, the material frame body further comprises a bottom frame, a first side fence located at the left side of the bottom frame, a second side fence located at the right side of the bottom frame, and a third side fence located at the rear side of the bottom frame, the first side fence, the second side fence and the third side fence are rotationally connected with the bottom frame, and the first side fence, the second side fence and the third side fence can be rotated to an unfolded use state and a folded storage state on the bottom frame; the two sides of the third side fence are provided with locking mechanisms, and the first side fence and the second side fence are provided with alignment mechanisms; when the first side fence, the second side fence and the third side fence are in the use state, the locking mechanisms on the two sides of the third side fence can be respectively locked with the alignment mechanisms of the first side fence and the second side fence or separated from each other.

[0013] In some embodiments, the locking mechanism comprises a first locking mechanism and a second locking mechanism, the aligning mechanism comprises a first aligning mechanism matched with the first locking mechanism and a second aligning mechanism matched with the second locking mechanism; when the first side fence, the second side fence and the third side fence are all in the use state, the first locking mechanism on both sides of the third side fence can be locked with the first aligning mechanism of the first side fence and the first aligning mechanism of the second side fence respectively to limit the rotation of the third side fence, and the second locking mechanism on both sides of the third side fence can be locked with the second aligning mechanism of the first side fence and the second aligning mechanism of the second side fence respectively to limit the rotation of the first side fence and the second side fence.

[0014] The present application has at least the following beneficial effects: when the material frame of the present application is stacked, the first positioning part of the material frame body located below is inserted into the positioning insertion hole of the material frame body located above, since the outer diameter of the first positioning part gradually decreases in the upward direction, the inner diameters of the first guide part and the second guide part also gradually decrease, and the inner diameter of the top end of the second guide part is greater than the inner diameter of the bottom end of the first guide part, which makes the caliber of the lower opening of the positioning insertion hole larger, and the first guide part and the second guide part can gradually guide the first positioning part to be inserted into the first guide part, facilitating accurate alignment of the material frame when stacked. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The structural schematic diagram of the stackable material frame of an embodiment of the present application; Figure 2 The structural schematic diagram of the positioning head of an embodiment of the present application; Figure 3 The structural schematic diagram of the support leg of an embodiment of the present application; Figure 4 The cross-sectional view of the positioning head inserted into the positioning insertion hole of the support leg of an embodiment of the present application; Figure 5 The structural schematic diagram of the stackable material frame of another embodiment of the present application; Figure 6 The structural schematic diagram of the stackable material frame of another embodiment of the present application; Figure 5 The exploded schematic diagram of the stackable material frame shown; Figure 7 The structural schematic diagram of the bottom frame of an embodiment of the present application; Figure 8 The structural schematic diagram of the side column assembly of an embodiment of the present application; Figure 9 The structural schematic diagram of the side column assembly of another embodiment of the present application; Figure 10 The structural schematic diagram of the rear pull rod of an embodiment of the present application; Figure 11 Structure diagram of diagonal pull rod of one embodiment of the present application; Figure 12 Structure diagram of front upright of one embodiment of the present application; Figure 13 Structure diagram of stackable material frame of another embodiment of the present application in use state; Figure 14 Structure diagram of stackable material frame of another embodiment of the present application in storage state; Figure 15 Structure diagram of Figure 13 Enlarged diagram of A in FIG. 6; Figure 16 Structure diagram of third side fence of one embodiment of the present application; Figure 17 Structure diagram of Figure 16 Enlarged diagram of B in FIG. 7; Figure 18 Structure diagram of first side fence of one embodiment of the present application; Figure 19 Structure diagram of Figure 18 Enlarged diagram of C in FIG. 8; Figure 20 Sectional view diagram of second side fence and bottom frame of one embodiment of the present application.

[0016] In the drawings, reference numerals are: Material frame body 10; Bottom frame 100, connecting hole 101, support rod 110, positioning pin 120, connecting bracket 130; Vertical rod 201, connecting plate 202, third locking mechanism 203, first side fence 210, second side fence 220, third side fence 230, side upright assembly 240, side upright 241, front upright 250, rear fence assembly 260, front pull rod 270, rear pull rod 280, diagonal pull rod 290, pre-positioning hole 291; Locking mechanism 300, first locking mechanism 310, locking rod 311, elastic member 312, holding rod 313, fixed seat 314, limiting groove 315, accommodating groove 316, second locking mechanism 320, positioning rod 321, limiting disc 322; Alignment mechanism 400, first alignment mechanism 410, alignment hole 411, second alignment mechanism 420, positioning plate 421, positioning groove 422; First support member 510, first insertion slot 511, second support member 520, second insertion slot 521, third support member 530, third insertion slot 531, first insertion piece 540, second insertion piece 550; supporting legs 60, positioning heads 70, positioning holes 600, first guiding parts 610, second guiding parts 620, upper guiding parts 621, lower guiding parts 622, convex rings 630; positioning heads 70, positioning holes 600, first guiding parts 610, second guiding parts 620, upper guiding parts 621, lower guiding parts 622, convex rings 630; DETAILED DESCRIPTION

[0017] The present application provides the following description with reference to the accompanying drawings to help comprehensively understand various embodiments of the present application as defined by the claims and their equivalents. The description includes various specific details to help understanding, but these details should be regarded as merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the present application.

[0018] In the description of the present application, the orientation description, such as the orientation or positional relationship indicated by the upper, lower, front, rear, left, right, etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0019] It should be understood that when one element (e.g., a first element) is "connected" to another element (e.g., a second element), the element can be directly connected to the other element, or there can be an intervening element (e.g., a third element) between the element and the other element.

[0020] Embodiments of the present application provide a stackable material frame, such as Figures 1-4 As shown, it comprises a material frame body 10, which comprises a plurality of supporting legs 60 at the bottom thereof and a plurality of positioning heads 70 corresponding to the supporting legs 60 at the top thereof. The supporting legs 60 are used to support the entire material frame, and the number of the positioning heads 70 is the same as that of the supporting legs 60, each supporting leg 60 corresponds to one positioning head 70, and the corresponding supporting leg 60 and positioning head 70 are in the same vertical position. The bottom surface of the supporting leg 60 is provided with a positioning hole 600 for the positioning head 70 to be inserted into, which creates conditions for the material frame to be stacked and placed.

[0021] The positioning head 70 comprises a bearing platform 730 and a first positioning part 710 connected to the top surface of the bearing platform 730. The first positioning part 710 protrudes upward, and the outer diameter of the first positioning part 710 gradually decreases in the upward direction, which makes the first positioning part 710 easily slide relative to the inner wall of the positioning hole 600 when the first positioning part 710 is not aligned with the positioning hole 600. The inner wall of the positioning hole 600 is provided with a convex ring 630, and the inner side space of the convex ring 630 comprises a first guide part 610. The positioning hole 600 further comprises a second guide part 620 below the first guide part 610. The inner diameter of the first guide part 610 and the second guide part 620 gradually decreases in the upward direction, and the inner diameter of the top end of the second guide part 620 is greater than the inner diameter of the bottom end of the first guide part 610. In this way, the positioning head 70 can be guided to gradually move to the center of the positioning hole 600, and the outer diameter of the bottom end of the second guide part 620 is greater, which is equivalent to expanding the opening of the bottom end of the positioning hole 600, so that the positioning head 70 is more easily inserted into the positioning hole 600.

[0022] When the two material frame bodies 10 are stacked one above the other, the positioning head 70 of the lower material frame body 10 is inserted into the positioning hole 600 of the upper material frame body 10. Even if the first positioning part 710 cannot be aligned with the first guide part 610, the upper material frame body 10 can be gradually displaced under the action of the first guide part 610 and the second guide part 620, so that the first positioning part 710 of the lower material frame body 10 is finally inserted into the first guide part 610 of the upper material frame body 10, and the convex ring 630 of the upper material frame body 10 abuts against the top surface of the bearing platform 730 of the lower material frame body 10, so that the support leg 600 of the upper material frame body 10 is stably supported by the bearing platform 730. Therefore, the embodiment facilitates accurate alignment of the material frame when it is stacked, so that the stacked material frame can be kept stable.

[0023] In some embodiments, the second guide part 620 comprises an upper guide part 621 and a lower guide part 622. The upper guide part 621 is located on top of the lower guide part 622, and the bottom end of the upper guide part 621 is connected to the top end of the lower guide part 622. The included angle between the inner side wall of the upper guide part 621 and the horizontal direction is greater than the included angle between the inner side wall of the lower guide part 622 and the horizontal direction. When the positioning head 70 abuts against the inner wall of the lower guide part 622 and moves to the axis of the positioning hole 600, the positioning head 70 will be separated from the lower guide part 622, and the convex ring 630 and the bearing platform 730 have a certain height difference, which may cause the upper material frame to quickly drop. The upper guide part 621 of the embodiment can play the role of intermediate transition. After the positioning head 70 is separated from the lower guide part 622, the positioning head 70 will abut against the upper guide part 621 to reduce the height difference between the convex ring 630 and the bearing platform 730, so as to avoid too large difference between the two.

[0024] Further, the inner side surface of the upper guiding portion 621 is located on the extension surface of the inner side surface of the first guiding portion 610, and when the positioning head 70 abuts against the upper guiding portion 621 and slides along the upper guiding portion 621, the first positioning portion 710 is more easily inserted into the first guiding portion 610.

[0025] In some embodiments, the positioning head 70 further comprises a second positioning portion 720, which is located at the bottom of the support 730, and the top end of the second positioning portion 720 is connected to the bottom end of the support 730; in the upward direction, the outer diameter of the second positioning portion 720 gradually decreases, the outer side wall of the support 730 is equidiameter, and the outer diameter of the top end of the second positioning portion 720 is equal to the outer diameter of the support 730.

[0026] The added second positioning portion 720 can abut against the second guiding portion 620, thereby strengthening the guiding movement of the positioning head 70.

[0027] Further, the outer side surface of the second positioning portion 720 is located on the extension surface of the outer side surface of the first positioning portion 710. When the first guiding portion 610 abuts against the first positioning portion 710, the upper guiding portion 621 can abut against the second positioning portion 720 at the same time, and the first positioning portion 710 is more easily inserted into the first guiding portion 610.

[0028] In some embodiments, the positioning head 70 further comprises a round head portion 740 located at the top end of the first positioning portion 710, and the surface of the round head portion 740 is arc-shaped, so that the round head portion 740 is more smooth, the round head portion 740 is more easily moved on the inner wall of the positioning hole 600, and the inner wall of the positioning hole 600 and the user are not easily scratched, and the use is relatively safe.

[0029] In some embodiments, the first guiding portion 610, the upper guiding portion 621, the lower guiding portion 622, the first positioning portion 710 and the second positioning portion 720 of the above-mentioned embodiments can all be circular truncated cone-shaped, and in the horizontal direction, they can all guide the positioning head 70 to slide along the radial direction relative to the support leg 60, and then accurately inserted into the positioning hole 600.

[0030] In some embodiments, the support 730 can be in the shape of a cylinder, and the positioning hole 600 between the upper guiding portion 621 and the convex ring 630 can be a cylindrical hole.

[0031] On the basis of the above-mentioned embodiments, the present embodiment further provides another stackable material frame, which is specifically as follows Figures 5-12As shown, the material frame body further comprises a bottom frame 100, two side column assemblies 240, two front columns 250, a rear fence assembly 260 and a front pull rod 270. The two side column assemblies 240 are respectively located on the left side and the right side of the bottom frame 100. The two front columns 250 are respectively located on the left side and the right side of the front side of the bottom frame 100. The rear fence assembly 260 is located on the rear side of the bottom frame 100. Thus, the left side, the right side and the rear side of the material frame are all provided with fence structures. The goods are placed on the bottom frame 100. The two side column assemblies 240 and the rear fence assembly 260 respectively block the goods from the left side, the right side and the rear side to prevent the goods from falling. The front side of the material frame is used for the goods to enter or move out of the bottom frame 100.

[0032] Each of the two side column assemblies 240 comprises a side column 241. The bottom frame 100 is provided with four connecting holes 101 adapted to the two side columns 241 and the two front columns 250. The lower ends of the two side columns 241 and the two front columns 250 are respectively inserted into the connecting holes 101 adapted thereto. The two side column assemblies 240 and the two front columns 250 are pre-positioned by the insertion and fitting of the columns and the connecting holes 101. The two side columns 241 and the two front columns 250 are fixedly connected with the bottom frame 100. The two ends of the front pull rod 270 are respectively inserted into the two front columns 250. The connection between the front pull rod 270 and the front columns 250 is positioned by the insertion. The two ends of the front pull rod 270 can also be fixedly connected with the two front columns 250 by rivet connection, screw connection and the like. The front ends of the two side column assemblies 240 are respectively inserted into the two front columns 250. The connection between the side column assemblies 240 and the front columns 250 is positioned by the insertion. The front ends of the two side column assemblies 240 can also be fixedly connected with the two front columns 250 by rivet connection, screw connection and the like. The rear fence assembly 260 is respectively inserted into the bottom frame 100 and the two side column assemblies 240. The connection between the rear fence assembly 260 and the bottom frame 100 and the connection between the rear fence assembly 260 and the side column assemblies 240 are positioned by the insertion. The rear fence assembly 260 can also be fixedly connected with the bottom frame 100 and the two side column assemblies 240 by rivet connection, screw connection and the like.

[0033] Therefore, the components of the material frame of the embodiment are positioned by insertion. After the insertion is completed, the hole positions on the components can be accurately aligned. Thus, the operation of connecting the hole positions by the operator is omitted. The adjacent components can be fixed together by rivet connection, screw connection and the like in the subsequent process. Thus, the assembly process of the material frame is simplified and the production efficiency is improved.

[0034] In some embodiments, as shown in Figure 5 The positioning head 70 of the above embodiment can be fixed on the top of the side column 241 and the front column 250. The support leg 60 of the above embodiment is connected with the bottom frame 100.

[0035] In some embodiments, the rear fence assembly includes a rear pull rod 280 and an inclined pull rod 290. Both ends of the rear pull rod 280 are respectively inserted into the two side column assemblies 240, and the connection between the rear pull rod 280 and the side column assemblies 240 is positioned by the insertion. The two ends of the rear pull rod 280 can be respectively fixedly connected with the two side column assemblies 240 by rivet connection, screw connection or the like. Both ends of the inclined pull rod 290 are respectively inserted into the bottom frame 100 and one of the side column assemblies 240, and the connection between the inclined pull rod 290 and the bottom frame 100 and the connection between the inclined pull rod 290 and the side column assembly 240 are positioned by the insertion. The two ends of the inclined pull rod 290 can be respectively fixedly connected with the bottom frame 100 and one of the side column assemblies 240 by rivet connection, screw connection or the like.

[0036] In this embodiment, the rear pull rod 280 mainly serves to connect the two side column assemblies 240, and the inclined pull rod 290 mainly serves to block the goods.

[0037] Further, both of the side column assemblies 240 include a first support 510, and the first support 510 is provided with a first insertion slot 511. The bottom surface of each end of the rear pull rod 280 is provided with a first insertion piece 540 extending downward, and the first insertion piece 540 of each end of the rear pull rod 280 is respectively inserted into the first insertion slot 511 of the first support 510 of the two side column assemblies 240 to realize the insertion of the rear pull rod 280 and the side column assembly 240.

[0038] Since the first insertion piece 540 extends downward, the first insertion piece 540 is inserted downward into the first insertion slot 511. This insertion manner does not need to make a large adjustment to the spacing between the two side column assemblies 240, and facilitates the insertion of the rear pull rod 280. The first support 510 can extend in the horizontal direction, and the rear pull rod 280 can be placed on the first support 510, thereby serving to support the rear pull rod 280.

[0039] In some embodiments, the bottom frame 100 and the side column assembly 240 connected with the inclined pull rod 290 each include a positioning pin 120, both ends of the inclined pull rod 290 are provided with a pre-positioning hole 291, and the positioning pins 120 of the bottom frame 100 and the side column assembly 240 are respectively inserted into the pre-positioning holes 291 at both ends of the inclined pull rod 290. The connection between the inclined pull rod 290 and the side column assembly 240 and the connection between the inclined pull rod 290 and the bottom frame 100 are positioned by the cooperation of the positioning pins 120 and the pre-positioning holes 291, which facilitates subsequent fixation by rivet connection or screw connection or the like.

[0040] In some embodiments, the two ends of the rear pull rod 280 are fixedly connected with the two side column assemblies 240 by rivets respectively, and the two ends of the diagonal pull rod 290 are fixedly connected with the bottom frame 100 and the side column assemblies 240 by rivets respectively. Correspondingly, the rear pull rod 280, the diagonal pull rod 290, the bottom frame 100 and the side column assemblies 240 are all provided with rivet holes through which the rivets can pass. In this embodiment, the relevant components are connected by rivets, which, compared with screw connection, does not need to screw the screws, thereby shortening the operation time.

[0041] In this embodiment, the two ends of the rear pull rod 280 can be fixedly connected with the first support pieces 510 of the two side column assemblies 240 by rivets.

[0042] In some embodiments, the two front columns 250 each include a second support piece 520, and the second support piece 520 is provided with a second insertion slot 521. The bottom surface of the front end of the two side column assemblies 240 is provided with a downwardly extending second insertion piece 550. The second insertion piece 550 of the two side column assemblies 240 is respectively inserted into the second insertion slot 521 of the second support piece 520 of the two front columns 250, so as to realize the insertion of the side column assemblies 240 and the front columns 250.

[0043] Since the second insertion piece 550 extends downwardly, the second insertion piece 550 is inserted downwardly into the second insertion slot 521. This insertion mode does not need to make a large adjustment to the spacing between the side column assemblies 240 and the front columns 250. In the process of inserting the side column 241 into the connecting hole, the second insertion piece 550 can be inserted into the second insertion slot 521 at the same time, thereby facilitating the insertion of the second insertion piece 550.

[0044] The second support piece 520 can extend in the horizontal direction, and the front end of the side column assembly 240 can be placed on the second support piece 520, thereby playing a role in supporting the side column assembly 240.

[0045] Further, the two side column assemblies 240 are fixedly connected with the two second support pieces 520 by rivets respectively. Correspondingly, the side column assemblies 240 and the second support pieces 520 are all provided with rivet holes through which the rivets can pass. In this embodiment, the side column assemblies 240 and the second support pieces 520 are connected by rivets, which, compared with screw connection, does not need to screw the screws, thereby shortening the operation time.

[0046] In some embodiments, the two front columns 250 each include a third support piece 530, and the third support piece 530 is provided with a third insertion slot 531. The bottom surface of the two ends of the front pull rod is provided with a downwardly extending third insertion piece. The third insertion piece of the two ends of the front pull rod is respectively inserted into the third insertion slot 531 of the third support piece 530 of the two front columns 250, so as to realize the insertion of the front pull rod and the front columns 250.

[0047] Since the third insertion piece extends downward, the third insertion piece is correspondingly inserted into the third insertion slot 531, and this insertion manner does not need to make a large adjustment to the distance between the two front columns 250. After the front columns 250 are inserted into the connecting holes, the front pull rod can be moved from top to bottom, and the third insertion piece at the two ends of the front pull rod can be inserted into the third insertion slot 531.

[0048] The third support 530 can extend in the horizontal direction, and the front pull rod can be placed on the third support 530, thereby playing a role in supporting the front pull rod.

[0049] In the embodiment, the structure of the front pull rod can be the same as that of the rear pull rod 280, and correspondingly, the structure of the third insertion piece can be the same as that of the second insertion piece.

[0050] Further, the two ends of the front pull rod are fixedly connected to the two third supports 530 through rivets. Correspondingly, the front pull rod and the third support 530 are both provided with rivet holes through which the rivets pass. In the embodiment, the front pull rod and the third support 530 are connected through the rivets, and compared with the screw connection, the operation time is shortened without screwing the screws.

[0051] In some embodiments, the two side columns 241 and the two front columns 250 are both provided with the connecting bracket 130, and the connecting bracket 130 of the two side columns 241 and the connecting bracket 130 of the two front columns 250 are fixedly connected to the bottom frame 100 through the rivets.

[0052] The connecting bracket 130 and the bottom frame 100 are both provided with rivet through holes through which the rivets pass. Since the components of the material frame are positioned through the insertion, after the insertion is in place, the rivet through hole of the connecting bracket 130 and the rivet through hole of the bottom frame 100 can be accurately aligned, thereby facilitating the connection.

[0053] On the basis of the above-mentioned embodiments, the embodiment further provides another material frame which can be stacked and placed, and specifically as shown in Figures 13-20 The material frame body further includes a bottom frame 100, a first side fence 210 located on the left side of the bottom frame 100, a second side fence 220 located on the right side of the bottom frame 100, and a third side fence 230 located on the rear side of the bottom frame 100. The first side fence 210, the second side fence 220, and the third side fence 230 are all rotationally connected to the bottom frame 100. The first side fence 210 and the second side fence 220 can be rotated towards each other or away from each other, and the third side fence 230 can be rotated towards the front side or the rear side. The first side fence 210, the second side fence 220, and the third side fence 230 can all be rotated to an unfolded use state, as shown in Figure 13As shown, the first side fence 210, the second side fence 220 and the third side fence 230 are in a vertical state to prevent the goods on the bottom frame 100 from moving to the side. The first side fence 210, the second side fence 220 and the third side fence 230 can also be folded on the bottom frame 100 to be stored, as shown in Figure 14 As shown, the first side fence 210, the second side fence 220 and the third side fence 230 are folded and stored.

[0054] The third side fence 230 is provided with a locking mechanism 300 on both sides, and the first side fence 210 and the second side fence 220 are provided with a positioning mechanism 400. The positioning mechanism 400 of the first side fence 210 and the positioning mechanism 400 of the second side fence 220 are respectively matched with the locking mechanism 300 on both sides of the third side fence 230. When the first side fence 210, the second side fence 220 and the third side fence 230 are in the use state, the locking mechanism 300 on both sides of the third side fence 230 can be locked with the positioning mechanism 400 of the first side fence 210 and the positioning mechanism 400 of the second side fence 220 respectively or separated from each other.

[0055] When the material frame of the embodiment needs to be used, the first side fence 210, the second side fence 220 and the third side fence 230 are all rotated to the use state, and then the locking mechanism 300 on both sides of the third side fence 230 is locked with the positioning mechanism 400 of the first side fence 210 and the positioning mechanism 400 of the second side fence 220 respectively. This will limit the rotation of the first side fence 210, the second side fence 220 and the third side fence 230, so that the first side fence 210, the second side fence 220 and the third side fence 230 can remain in the use state, avoiding the first side fence 210, the second side fence 220 and the third side fence 230 from falling by themselves, and ensuring the normal use of the material frame by the user.

[0056] When the material frame of the embodiment does not need to be used, the locking mechanism 300 on both sides of the third side fence 230 is separated from the positioning mechanism 400 of the first side fence 210 and the positioning mechanism 400 of the second side fence 220 respectively, so as not to limit the rotation of the first side fence 210, the second side fence 220 and the third side fence 230. The first side fence 210, the second side fence 220 and the third side fence 230 can all be rotated to the storage state of being folded on the bottom frame 100, thereby reducing the space occupied by the entire material frame and facilitating the transportation of the material frame.

[0057] In some embodiments, as shown in Figure 13 The positioning head 70 of the above embodiment can be fixed on the top of the first side fence 210 and the second side fence 220. The support leg 60 of the above embodiment is connected with the bottom frame 100.

[0058] In some embodiments, the locking mechanism 300 comprises a first locking mechanism 310 and a second locking mechanism 320, and the alignment mechanism 400 comprises a first alignment mechanism 410 matched with the first locking mechanism 310 and a second alignment mechanism 420 matched with the second locking mechanism 320. When the first side fence 210, the second side fence 220 and the third side fence 230 are all in the use state, the first locking mechanism 310 on both sides of the third side fence 230 can be locked with the first alignment mechanism 410 of the first side fence 210 and the first alignment mechanism 420 of the second side fence 220 respectively, so as to limit the rotation of the third side fence 230. When the first locking mechanism 310 on both sides of the third side fence 230 is separated from the first alignment mechanism 410 of the first side fence 210 and the first alignment mechanism 420 of the second side fence 220 respectively, the rotation of the third side fence 230 is no longer limited, and the third side fence 230 can be rotated to the storage state. The second locking mechanism 320 on both sides of the third side fence 230 can be locked with the second alignment mechanism 420 of the first side fence 210 and the second alignment mechanism 420 of the second side fence 220 respectively, so as to limit the rotation of the first side fence 210 and the second side fence 220. When the second locking mechanism 320 on both sides of the third side fence 230 is separated from the second alignment mechanism 420 of the first side fence 210 and the second alignment mechanism 420 of the second side fence 220 respectively, the rotation of the first side fence 210 and the second side fence 220 is no longer limited, and the first side fence 210 and the second side fence 220 can be rotated to the storage state.

[0059] Since the first side fence 210 and the second side fence 220 are different from the rotation direction of the third side fence 230, the first locking mechanism 310 and the first alignment mechanism 410 are matched to limit the rotation of the third side fence 230, and the second locking mechanism 320 and the second alignment mechanism 420 are matched to limit the rotation of the first side fence 210 and the second side fence 220, so as to ensure the locking effect, and the first side fence 210, the second side fence 220 and the third side fence 230 can be stably kept in the use state.

[0060] Further, the first locking mechanism 310 comprises a locking rod 311 movable in the left-right direction, and the first alignment mechanism 410 is a jack 411 matched with the locking rod 311. Since the third side fence 230 is rotated forward or backward, when the locking rod 311 is inserted into the jack 411, the third side fence 230 cannot be rotated, and the first locking mechanism 310 is locked with the first alignment mechanism 410. When the locking rod 311 is separated from the jack 411, the rotation of the third side fence 230 is no longer limited, and the first locking mechanism 310 can be separated from the first alignment mechanism 410.

[0061] The structure of the locking rod 311 cooperating with the insertion hole 411 is simple and easy to operate. The user can manually control the locking rod 311 to move in the left-right direction, and the locking rod 311 can be extended outward and inserted into the insertion hole 411, or the locking rod 311 can be retracted inward and separated from the insertion hole 411.

[0062] Further, the first locking mechanism 310 further comprises an elastic member 312 for applying an elastic force to the locking rod 311 to extend outward. Thus, under the action of no other external force, the elastic member 312 applies a force to the locking rod 311 to keep the locking rod 311 in an extended state, so that the locking rod 311 is not easy to separate from the insertion hole 411, and the locking effect on the third side fence 230 is ensured. When the user wants to separate the locking rod 311 from the insertion hole 411, a certain force is needed to overcome the elastic force of the elastic member 312.

[0063] Further, the locking rod 311 is connected with a holding rod 313 for the user to hold, and the user can grasp the holding rod 313 to drive the locking rod 311 to move in the left-right direction. The holding rod 313 extends in the radial direction of the locking rod 311 to form a bent structure, which can facilitate the user to apply force and is more labor-saving to operate.

[0064] The first locking mechanism 310 further comprises a fixing seat 314 provided with a through hole extending in the left-right direction, and the locking rod 311 is arranged in the through hole and can move and rotate in the through hole. The fixing seat 314 is provided with a limiting groove 315, and when the locking rod 311 is separated from the insertion hole 411, the holding rod 313 can be rotated to be inserted into the limiting groove 315 to limit the locking rod 311 from extending outward. Since the elastic member 312 applies an outward force to the locking rod 311, if the locking rod 311 is to be separated from the insertion hole 411, a force needs to be continuously applied to the locking rod 311, which is not convenient for the user to operate. In this regard, after the holding rod 313 is inserted into the limiting groove 315, the inner wall of the limiting groove 315 is used to limit the locking rod 311 from extending outward, so that the user does not need to continuously apply force to the locking rod 311, and the user is more convenient and labor-saving to operate.

[0065] The fixing seat 314 is further provided with a containing groove 316, and when the locking rod 311 is inserted into the insertion hole 411, the holding rod 313 can be rotated to be inserted into the containing groove 316. The containing groove 316 is used to accommodate the holding rod 313, and the containing groove 316 can also limit the holding rod 313 to limit the distance of the locking rod 311 inserted into the insertion hole 411, so as to avoid over-insertion.

[0066] In some embodiments, the elastic member 312 is a spring sleeved outside the locking rod 311, one end of the spring abutting against the fixing seat 314, and the other end of the spring connected with the locking rod 311, or the locking rod 311 is provided with a convex ring, and the other end of the spring abutting against the convex ring.

[0067] In the embodiment, the elastic member 312 is limited to a spring, which is sleeved outside the locking rod 311 and is not easy to be separated from the locking rod 311, and can stably provide elastic force along the axial direction of the locking rod 311.

[0068] In some embodiments, the second locking mechanism 320 includes a hook member, and the second positioning mechanism 420 includes a positioning plate 421 provided with a positioning groove 422 opening to the front side. When the third side fence 230 rotates from the folded state to the use state, the hook member can be inserted into the positioning groove 422 and hooked on the positioning plate 421, so as to limit the rotation of the first side fence 210 and the second side fence 220.

[0069] In the embodiment, the hook member is used to limit the rotation of the first side fence 210 and the second side fence 220, and the structure is simple. During the rotation of the third side fence 230 from the folded state to the use state, the hook member can be hooked on the positioning plate 421 automatically, and during the rotation of the third side fence 230 from the use state to the folded state, the hook member can be separated from the positioning plate 421 automatically, so that the user can save the step of switching the locking state, the operation of the user is simplified, and the use is more convenient.

[0070] Further, the hook member includes a positioning rod 321 extending outwardly in the left-right direction and a limiting disc 322 located at the end of the positioning rod 321, and the outer diameter of the limiting disc 322 is greater than the width of the positioning groove 422. When the third side fence 230 rotates from the folded state to the use state, the positioning rod 321 can be inserted into the positioning groove 422, and the positioning plate 421 is located between the limiting disc 322 and the third side fence 230. In this state, the limiting disc 322 can abut against the outer side surface of the positioning plate 421 (the side surface away from the third side fence 230), so as to limit the rotation of the first side fence 210 and the second side fence 220 away from each other, and the third side fence 230 can abut against the inner side surface of the positioning plate 421 (the side surface close to the third side fence 230), so as to limit the rotation of the first side fence 210 and the second side fence 220 toward each other, thereby limiting the rotation of the first side fence 210 and the second side fence 220.

[0071] In some embodiments, the first side fence 210 and the second side fence 220 are each provided with a third locking mechanism 203, and the bottom frame 100 is provided with two sets of third alignment mechanisms respectively matched with the third locking mechanism 203 of the first side fence 210 and the third locking mechanism 203 of the second side fence 220. When the first side fence 210 is in the use state, the third locking mechanism 203 of the first side fence 210 can be locked and matched with the third alignment mechanism to limit the rotation of the first side fence 210; when the second side fence 220 is in the use state, the third locking mechanism 203 of the second side fence 220 can be locked and matched with the third alignment mechanism to limit the rotation of the second side fence 220.

[0072] Thus, by the cooperation of the third locking mechanism 203 and the third alignment mechanism, the rotation of the first side fence 210 and the second side fence 220 can be further limited, and the rotation of the first side fence 210 and the second side fence 220 can be stably in the use state. Of course, when the first side fence 210 and the second side fence 220 need to be rotated to the storage state, the third locking mechanism 203 needs to be separated from the third alignment mechanism.

[0073] Further, the first side fence 210 and the second side fence 220 each include a vertical rod 201, and both sides of the lower end of the vertical rod 201 are fixed with a connecting plate 202. The bottom frame 100 includes a support rod 110 extending vertically upward, the support rod 110 can be located between the two connecting plates 202 and is rotationally connected with the two connecting plates 202 respectively, and the third locking mechanism 203 can be arranged on the connecting plate 202.

[0074] In some embodiments, the third locking mechanism 203 includes an elastic pin that can be elastically extended and retracted, the third alignment mechanism is a limiting hole arranged on the bottom frame 100, the elastic pin can be inserted into or separated from the limiting hole, when the elastic pin is inserted into the limiting hole, the third locking mechanism 203 is locked and matched with the third alignment mechanism, and when the elastic pin is separated from the limiting hole, the third locking mechanism 203 is separated from the third alignment mechanism. The default state of the elastic pin can be the state of extending into the limiting hole, so that the third locking mechanism 203 and the third alignment mechanism can be kept in the state of locked matching, avoiding the elastic pin from being separated from the limiting hole by itself. When the first side fence 210 and the second side fence 220 need to be rotated to the storage state, the user can apply a force to the elastic pin to make it separate from the limiting hole.

[0075] In some embodiments, the bottom frame 100 and / or the third side fence 230 is provided with a limiting mechanism, when the third side fence 230 is in the use state, the limiting mechanism is used to limit the rotation of the third side fence 230 to the rear side, which can avoid the third side fence 230 from being flipped to the rear.

[0076] The limiting mechanism can be a baffle, which abuts against the rear side of the third side fence 230 when the third side fence 230 is in a use state, thereby blocking the third side fence 230 from rotating to the rear side.

[0077] The terms and words used in the above description and claims are not limited to the bibliographical meanings, but are merely used to enable a clear and complete understanding of the application by those skilled in the art. Accordingly, it should be apparent to those skilled in the art that the above description is provided only to illustrate the various embodiments of the present application and not to limit the present application defined by the appended claims and their equivalents.

Claims

1. A stackable material frame, characterized in that: The locking mechanism is configured to lock the locking cam of the locking cam, wherein the locking cam has a lockhole configured to lock the locking cam of the locking cam and the lockhole to lock the locking cam.

2. The stackable material frame according to claim 1, characterized in that: The second guide portion includes an upper guide portion and a lower guide portion, the upper guide portion is located at the top of the lower guide portion, and the bottom end of the upper guide portion is connected to the top end of the lower guide portion; the angle formed between the inner side wall of the upper guide portion and the horizontal direction is greater than the angle formed between the inner side wall of the lower guide portion and the horizontal direction.

3. The stackable material frame according to claim 2, characterized in that: The inner side surface of the upper guide portion is located on an extension surface of the inner side surface of the first guide portion.

4. The stackable material frame according to claim 1, characterized in that: The positioning head also includes a second positioning portion, which is located at the bottom of the platform, and the top end of the second positioning portion is connected to the bottom end of the platform; in the upward direction, the outer diameter of the second positioning portion gradually decreases, and the outer side wall of the platform is set with equal diameter; the outer diameter of the top end of the second positioning portion is equal to the outer diameter of the platform.

5. The stackable material frame according to claim 4, characterized in that: The outer side surface of the second positioning portion is located on an extension surface of the outer side surface of the first positioning portion.

6. The stackable material frame according to claim 1, characterized in that: The positioning head further includes a round head portion located at the top end of the first positioning portion, and the surface of the round head portion is arc-shaped.

7. The stackable material frame according to any one of claims 1 to 6, characterized in that: The material frame body also includes a bottom frame, two side column assemblies, two front columns, a rear fence assembly and a front pull rod, the two side column assemblies are respectively located on the left and right sides of the bottom frame, the two front columns are respectively located on the left and right sides of the front side of the bottom frame, the rear fence assembly is located on the rear side of the bottom frame, and the two side column assemblies each include a side column; the bottom frame is provided with four connecting holes that are respectively adapted to the two side columns and the two front columns, the lower ends of the two side columns and the lower ends of the two front columns are respectively inserted into the connecting holes adapted thereto, and the two side columns and the two front columns are fixedly connected to the bottom frame; the two ends of the front pull rod are respectively inserted into the two front columns and fixedly connected to the two front columns respectively; the front ends of the two side column assemblies are respectively inserted into the two front columns and fixedly connected to the two front columns; the rear fence assembly is respectively inserted into the bottom frame and the two side column assemblies, and the rear fence assembly is fixedly connected to the bottom frame and the two side column assemblies.

8. The stackable material frame according to claim 7, characterized in that: The rear fence assembly includes a rear pull rod and a diagonal pull rod. The two ends of the rear pull rod are respectively inserted into the two side column assemblies and fixedly connected to the two side column assemblies. The two ends of the diagonal pull rod are respectively inserted into the bottom frame and one of the side column assemblies and fixedly connected to the bottom frame and one of the side column assemblies.

9. The stackable material frame according to any one of claims 1 to 6, characterized in that: The material frame body also includes a bottom frame, a first side fence located on the left side of the bottom frame, a second side fence located on the right side of the bottom frame, and a third side fence located on the rear side of the bottom frame. The first side fence, the second side fence and the third side fence are all rotatably connected to the bottom frame, and the first side fence, the second side fence and the third side fence can all be rotated to an unfolded use state and a storage state folded on the bottom frame; locking mechanisms are provided on both sides of the third side fence, and the first side fence and the second side fence are both provided with alignment mechanisms; when the first side fence, the second side fence and the third side fence are all in use, the locking mechanisms on both sides of the third side fence can be respectively locked with the alignment mechanisms of the first side fence and the alignment mechanisms of the second side fence or separated from each other.

10. The stackable material frame according to claim 9, characterized in that: The locking mechanism includes a first locking mechanism and a second locking mechanism, and the alignment mechanism includes a first alignment mechanism adapted to the first locking mechanism and a second alignment mechanism adapted to the second locking mechanism; when the first side fence, the second side fence and the third side fence are all in use, the first locking mechanisms on both sides of the third side fence can be respectively locked and matched with the first alignment mechanism of the first side fence and the first alignment mechanism of the second side fence to limit the rotation of the third side fence, and the second locking mechanisms on both sides of the third side fence can respectively lock and match with the second alignment mechanism of the first side fence and the second alignment mechanism of the second side fence to limit the rotation of the first side fence and the second side fence.

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