A frame box with end frames that can rotate 270 degrees

Abstract

This utility model relates to the field of frame boxes, specifically a frame box with a 270-degree rotatable end frame. It includes a base platform, end frames, and a hinge device. The hinge device includes an outer hinge and an inner hinge connected by a hinge shaft. The outer hinge is fixed to the base platform, and the inner hinge is fixed to the end frame. The hinge shaft is detachably connected to the hinge device and has a first position and a second position. The first position corresponds to the end frame rotating between a 0-degree and a 90-degree rotation position relative to the base platform. The second position corresponds to the end frame rotating from a 90-degree to a 270-degree rotation position relative to the base platform. In this utility model, the end frame has a 0-degree to 270-degree rotation function, allowing for free switching of the rotation angle according to desired functionality. These three different states enable diverse platform utilization—it can be used for single-platform transport and stacking of goods, or for double-platform loading of goods.

Description

Technical Field

[0001] This utility model relates to the field of frame boxes, specifically a frame box with end frames that can rotate 270 degrees. Background Technology

[0002] Current flat rack containers, limited by mechanical transmission design and structural form, only support two modes: fixed configuration or 90-degree right-angle rotation. This results in poor flexibility, limited applicability, and an inability to dynamically adjust the frame angle for flexible space division, making it difficult to fully utilize storage space. Generally used only for platform loading, goods can only be stacked flat, reducing loading efficiency and increasing the risk of damage due to compression and collisions. Utility Model Content

[0003] The purpose of this invention is to provide a frame box with an end frame that can rotate 270 degrees, in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a frame box with an end frame that can rotate 270 degrees, comprising a base platform, an end frame, and a hinge device, wherein the hinge device comprises an outer hinge and an inner hinge connected by a hinge shaft, the outer hinge is fixed to the base platform, and the inner hinge is fixed to the end frame;

[0005] The hinge shaft is detachably connected to the hinge device and has a first position and a second position. The first position corresponds to the end frame rotating between a 0-degree rotation position and a 90-degree rotation position relative to the base platform. The second position corresponds to the end frame rotating between a 90-degree rotation position and a 270-degree rotation position relative to the base platform.

[0006] Preferably, both the inner hinge and the outer hinge have two hinge holes, the hinge shaft is threadedly connected to the hinge hole of the outer hinge, and the hinge shaft is slidably engaged with the hinge hole of the inner hinge.

[0007] Preferably, the hinge hole includes a first hinge hole and a second hinge hole. When the hinge shaft is simultaneously inserted into the first hinge hole of both the inner hinge and the outer hinge, it is located in a first position; when the hinge shaft is simultaneously inserted into the second hinge hole of both the inner hinge and the outer hinge, it is located in a second position.

[0008] Preferably, the end of the base platform is provided with a square pin, the outer hinge has a locking pin hole, and the inner hinge has a first pin hole and a second pin hole, the first pin hole and the second pin hole being symmetrical about the second hinge hole; when the square pin is inserted into the locking pin hole and the first pin hole, the end frame is locked in a 90-degree rotation position; when the square pin is inserted into the locking pin hole and the second pin hole, the end frame is locked in a 270-degree rotation position.

[0009] Preferably, a support base is fixed to the end of the base platform, and the square pin passes through the support base; a positioning block is hinged to the side of the support base, and two slots distributed along the length direction are opened above the square pin. The square pin can be moved laterally to allow the positioning block to fall into different slots, so as to lock or unlock the inner hinge.

[0010] Preferably, the outer hinge includes two parallel outer hinge plates, the inner hinge is sandwiched between the outer hinge plates, the outer hinge plates are provided with bushings, the bushings extend toward the inner hinge, and the inner side of the bushings is the hinge hole of the outer hinge.

[0011] Preferably, at least one of the outer hinge plates has internal threads on its bushing.

[0012] Preferably, a rectangular groove is provided below the end of the base platform to restrict the end frame to a 270-degree rotation position and prevent it from continuing to rotate downwards from the base platform.

[0013] Preferably, the end frame includes two parallel corner posts, which are respectively connected to the two ends of the base platform via the hinge device, and the other end of each corner post is fixed with a corner piece.

[0014] Preferably, the side of the base platform is provided with a cylindrical pin, and when the end frame is in the 0-degree rotation position, the cylindrical pin is inserted into the corner hole of the corner piece.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: the middle frame of this utility model has a rotation function from 0 degrees to 270 degrees, and the rotation angle can be freely switched according to the desired functional effect. The three different states realize the diversified use of the platform - it can transport and stack goods on a single platform; it can also load goods on a double-layer platform to increase the loading capacity of vertical space, while realizing the isolation of upper and lower spaces to avoid damage to goods. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the end frame in the embodiment of this utility model when it is located at a 90-degree rotation position;

[0017] Figure 2 This is a front view of the end frame in the embodiment of this utility model when it is in the 0-degree rotation position;

[0018] Figure 3 yes Figure 1 The main view;

[0019] Figure 4 This is a schematic diagram of the structure when the end frame is in a 270-degree rotation position in an embodiment of this utility model;

[0020] Figure 5 yes Figure 4 The main view;

[0021] Figure 6 yes Figure 1 A structural diagram of the central hinge device and its surrounding structure;

[0022] Figure 7 yes Figure 6 A schematic diagram of the inner hinge and its vicinity along the length of the base platform;

[0023] Figure 8 yes Figure 4 A structural diagram of the central hinge device and its surrounding structure;

[0024] Figure 9 yes Figure 8 A cross-sectional schematic diagram of the inner hinge and nearby structures along the length of the base platform.

[0025] Figure 10 yes Figure 2 An enlarged schematic diagram of part A in the middle;

[0026] Figure 11 yes Figure 4 Side view;

[0027] Figure 12 yes Figure 11 Structural diagram of the Chinese side and surrounding structures;

[0028] Figure 13 yes Figure 2 Enlarged schematic diagram of part B. Detailed Implementation

[0029] See Figure 1 A conventional folding frame box includes a base platform 1, end frames 2, and a hinge device 3. The hinge device 3 includes an outer hinge and an inner hinge 32 connected by a hinge shaft 4. The outer hinge is fixed to the base platform 1, and the inner hinge 32 is fixed to the end frame 2. The axis of the hinge shaft is parallel to the width direction of the base platform 1. The end frame 2 includes two parallel corner posts 21, which are connected to the two ends of the base platform 1 respectively via the hinge device 3. The other end of each corner post 21 is fixed with a corner piece 22.

[0030] The position of hinge shaft 4 satisfies the requirement that end frame 2 rotates between a 0-degree rotation position and a 90-degree rotation position, such as... Figure 2 As shown, at the 0-degree rotation position, end frame 2 is folded onto the upper surface of the base platform 1, facilitating the stacking and storage of the folding frame boxes; as... Figure 1 or Figure 3As shown, the 90-degree rotation position is such that the end frame 2 is perpendicular to the base platform 1 in the space above the base platform 1. When the frame box is loaded with goods, the end frame 2 protects the goods above the base platform 1 and acts as a barrier.

[0031] To ensure that the end frame 2 fits perfectly against the upper surface of the base platform 1 when rotated at 0 degrees, the inner hinge 32 is typically shaped as follows: a straight surface on the back side and two straight surfaces combined on the front side. One straight surface is inclined relative to the straight surface on the back side, while the other straight surface is parallel to the straight surface on the back side. The inclined straight surface on the front side is further away from the straight surface on the back side than the parallel straight surface. The two parallel straight surfaces are fixed to the corner post 21, and the two sides of the corner post 21 are almost flush with the parallel straight surfaces. The hinge holes in a conventional folding frame box are located near the inclined straight surface on the front side.

[0032] Based on the above structure, this utility model discloses a frame box with an end frame that can rotate 270 degrees, such as... Figure 4 and Figure 5 As shown. To ensure that the inner hinge 32 does not collide with other structures of the base platform 1 when the end frame 2 rotates from a 90-degree rotation position to a 270-degree rotation position, both the inner hinge 32 and the outer hinge in this embodiment of the invention have two hinge holes, see reference. Figures 6 to 10 The outer hinge includes two parallel outer hinge plates 31, with an inner hinge 32 sandwiched between them. Figure 11 and Figure 12 The outer hinge plate 31 is provided with a bushing 33, which extends toward the inner hinge 32, and the inner side of the bushing 33 is the hinge hole of the outer hinge.

[0033] The hinge holes include a first hinge hole 34 and a second hinge hole 35. When the hinge shaft 4 is simultaneously inserted into the first hinge hole 34 of both the inner hinge 32 and the outer hinge, it is in the first position. (See reference...) Figure 6 , Figure 7 and Figure 10 When the hinge shaft 4 is simultaneously inserted into the second hinge hole 35 of both the inner hinge 32 and the outer hinge, it is in the second position. (See reference...) Figure 8 and Figure 9 The first hinge hole 34 is close to the inclined straight surface on the front side of the inner hinge 32, and the second hinge hole 35 is close to the straight surface on the back side of the inner hinge 32. That is, when the hinge shaft 4 is in the first position, it is close to the inclined straight surface on the front side of the inner hinge 32, and when the hinge shaft 4 is in the second position, it is close to the straight surface on the back side of the inner hinge 32.

[0034] Since this invention requires changing the position of the hinge shaft 4, the connection between the hinge shaft 4 and the hinge device 3 must be detachable. When replacing the hinge shaft 4, one end of the hinge shaft 4 needs to pass through the first outer hinge plate 31 and the inner hinge 32 in sequence until it reaches the second outer hinge plate 31. To facilitate the assembly and disassembly of the hinge shaft 4, this invention uses a threaded connection between the hinge shaft 4 and the outer hinge to make the hinge shaft 4 detachably connected. That is, the corresponding end of the hinge shaft 4 is threaded, while the middle part of the hinge shaft 4 slides in conjunction with the hinge hole of the inner hinge 32.

[0035] In this embodiment, only the bushing 33 on one outer hinge plate 31 has a thread, and the corresponding end of the hinge shaft 4 also has a thread to engage with it. The hinge shaft 4 has a smooth end, a smooth middle part, and a threaded end. The smooth end passes through the first outer hinge plate 31 and the inner hinge 32 in sequence, and the threaded end is threadedly fixed to the first outer hinge plate 31; or, the threaded end passes through the first outer hinge plate 31 and the inner hinge 32 in sequence, and the threaded end is threadedly fixed to the second outer hinge plate 31. In this way, when assembling and disassembling the hinge shaft 4, the threaded structure at both ends of the hinge shaft 4 can avoid affecting the other two hinge holes, thereby making the non-threaded part of the hinge shaft 4 more compatible with the inner hinge 32 and the other bushing 33.

[0036] Based on the first hinge hole 34, this utility model adds a second hinge hole 35, and realizes the detachable connection between the hinge shaft 4 and the hinge device 3, so as to realize the replacement of the hinge shaft 4 between the first position and the second position: when the hinge shaft 4 is in the first position, the end frame 2 rotates between the 0-degree rotation position and the 90-degree rotation position relative to the base platform 1; when the hinge shaft 4 is in the second position, the end frame 2 rotates from the 90-degree rotation position to the 270-degree rotation position relative to the base platform 1. The 270-degree rotation position is 180 degrees different from the 90-degree rotation position, that is, the end frame 2 can rotate on the outer sides of both ends of the base platform 1.

[0037] A 270-degree rotation position means that end frame 2 is perpendicular to base platform 1 in the space below base platform 1. (See reference...) Figure 4 and Figure 5 The end frame 2 can be used as a support leg for the base platform 1, forming a double-layer cargo platform between the base platform 1 and the ground. This allows for layered placement of multi-layered stacked goods, reducing damage. A rectangular groove 11 is provided at the lower end of the base platform 1. (See reference...) Figure 6 The size of the rectangular groove 11 is approximately the size of the back profile of the corner post 21. During the rotation of the end frame 2 from 90 degrees to 270 degrees, the corner post 21 gradually enters the rectangular groove 11 until it stops rotating due to the restriction of the base frame platform 1, and the end frame 2 is thus restricted to the 270-degree rotation position.

[0038] See Figure 11 and Figure 12The base platform 1 has a square pin 12 at its end for locking the end frame 2 to a 90-degree or 270-degree rotation position. A support base 13 is fixed to the end of the base platform 1, and the square pin 12 passes through the support base 13. The length direction of the square pin 12 is parallel to the width direction of the base platform 1. The outer hinge plate 31 has a locking pin hole 36, and the inner hinge 32 has a first pin hole 37 and a second pin hole 38. The first pin hole 37 and the second pin hole 38 are symmetrical about the second hinge hole 35.

[0039] Combination Figure 6 and Figure 7 When end frame 2 is in a 90-degree rotation position, the first pin hole 37 is opposite to the locking pin hole 36; combined Figure 8 and Figure 9 When end frame 2 is in the 270-degree rotation position, the second pin hole 38 is opposite to the locking pin hole 36. Therefore, when the square pin 12 is inserted into the locking pin hole 36 and the first pin hole 37, the end frame 2 is locked in the 90-degree rotation position; when the square pin 12 is inserted into the locking pin hole 36 and the second pin hole 38, the end frame 2 is locked in the 270-degree rotation position.

[0040] A small positioning block 14 is hinged to the side of the support base 13. Two slots 18 are provided above the square pin 12 along its length, and the distance between the two slots 18 is approximately equal to the distance between the two outer hinge plates 31. When the free end of the positioning block 14 falls into the two slots 18, it corresponds to the locking and unlocking functions of the square pin 12, respectively. When the positioning block 14 falls into the slot 18 away from the hinge device 3, the square pin 12 simultaneously inserts into both outer hinge plates 31 and the inner hinge 32 between them, locking the inner hinge 32. When the positioning block 14 falls into the slot 18 close to the hinge device 3, the square pin 12 only inserts into the nearest outer hinge plate 31, unlocking the inner hinge 32.

[0041] When end frame 2 is in the 0-degree rotation position, the square pin 12 at the end of the base platform 1 cannot lock it. Therefore, a mounting base 15 is fixed to the side of the base platform 1. (See reference...) Figure 13 The mounting base 15 contains a spring 16, through which a cylindrical pin 17 passes. The spring 16 is fitted onto the cylindrical pin 17. When the handle at the end of the cylindrical pin 17 is pulled, the cylindrical pin 17 can be moved laterally to the position of the handle. When the handle is released, the cylindrical pin 17 is reset by the action of the spring 16. The cylindrical pin 17 is located at the corner piece 22 of the end frame 2 in the 0-degree rotation position. The cylindrical pin 17 is used to insert into the corner piece hole of the corner piece 22 to fix the non-hinged end of the end frame 2.

[0042] The end frame 2 of this invention needs to achieve 270-degree rotation. When it reaches the 90-degree rotation position, it cannot be restricted by the corner piece 22 and back plate of the conventional hinge device 3. Therefore, hoisting equipment is needed to assist the end frame 2 in reaching the 90-degree rotation position before inserting the square pin 12, or the hinge shaft 4 can be moved from the first position to the second position. A reinforcing angle iron can also be connected between the inner hinge 32 and the outer hinge plate 31 to enhance the strength of the hinge device 3.

[0043] The specific process for realizing each state of this utility model is as follows:

[0044] With end frame 2 in the 0-degree rotation position, release the cylindrical pin 17, ensure that the hinge shaft 4 is in the first position, and use the hoisting equipment to assist end frame 2 to rotate to the 90-degree rotation position and stop, then insert the square pin 12.

[0045] If the end frame 2 needs to be rotated to the 270-degree rotation position, first insert another hinge shaft 4 in the second position, then remove the hinge shaft 4 in the first position, unlock the square pin 12, then add a forklift to lift the underframe platform 1, and use the hoisting equipment to assist the end frame 2 to continue rotating until the corner post 21 falls into the rectangular groove 11 and is in the 270-degree rotation position, and finally insert the square pin 12.

[0046] If end frame 2 rotates from a 270-degree rotation position back to a 0-degree rotation position, then simply reverse the above steps.

[0047] In summary, the mid-frame 2 of this utility model has a rotation function from 0 degrees to 270 degrees, allowing for free switching of the rotation angle according to the desired functional effect. Three different states enable diversified use of the platform—it can be used for single-platform transportation and stacking of goods; or it can be used as a double-layer platform for loading goods, increasing the loading capacity of vertical space, while simultaneously achieving vertical space isolation to prevent damage to goods. Based on diverse application scenarios, this utility model improves loading efficiency and safety through convenient and safe angle rotation control of the mid-frame 2 structure.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A frame box with an end frame that can rotate 270 degrees, comprising a base platform (1), an end frame (2), and a hinge device (3), wherein the hinge device (3) comprises an outer hinge and an inner hinge (32) connected by a hinge shaft (4), the outer hinge being fixed to the base platform (1), and the inner hinge (32) being fixed to the end frame (2); characterized in that: The hinge shaft (4) is detachably connected to the hinge device (3) and has a first position and a second position. The first position corresponds to the end frame (2) rotating between a 0-degree rotation position and a 90-degree rotation position relative to the base platform (1). The second position corresponds to the end frame (2) rotating between a 90-degree rotation position and a 270-degree rotation position relative to the base platform (1).

2. The frame box according to claim 1, characterized in that: Both the inner hinge (32) and the outer hinge have two hinge holes. The hinge shaft (4) is threadedly connected to the hinge hole of the outer hinge, and the hinge shaft (4) is slidably engaged with the hinge hole of the inner hinge (32).

3. The frame box according to claim 2, characterized in that: The hinge hole includes a first hinge hole (34) and a second hinge hole (35). When the hinge shaft (4) is simultaneously inserted into the first hinge hole (34) of the inner hinge (32) and the outer hinge, it is located in a first position; when the hinge shaft (4) is simultaneously inserted into the second hinge hole (35) of the inner hinge (32) and the outer hinge, it is located in a second position.

4. The frame box according to claim 3, characterized in that: The base platform (1) has a square pin (12) at its end. The outer hinge has a locking pin hole (36). The inner hinge (32) has a first pin hole (37) and a second pin hole (38). The first pin hole (37) and the second pin hole (38) are symmetrical about the second hinge hole (35). When the square pin (12) is inserted into the locking pin hole (36) and the first pin hole (37), the end frame (2) is locked at a 90-degree rotation position. When the square pin (12) is inserted into the locking pin hole (36) and the second pin hole (38), the end frame (2) is locked at a 270-degree rotation position.

5. The frame box according to claim 4, characterized in that: The base platform (1) is fixed with a support base (13) at its end, and the square pin (12) passes through the support base (13). The side of the support base (13) is hinged with a positioning block (14). Two slots (18) are provided above the square pin (12) along its length. The square pin (12) can be moved laterally so that the positioning block (14) falls into different slots (18) to lock or unlock the inner hinge (32).

6. The frame box according to claim 2, characterized in that: The outer hinge includes two parallel outer hinge plates (31), the inner hinge (32) is sandwiched between the outer hinge plates (31), the outer hinge plates (31) are provided with bushings (33), the bushings (33) extend toward the inner hinge (32), and the inner side of the bushings (33) is the hinge hole of the outer hinge.

7. The frame box according to claim 6, characterized in that: At least one of the outer hinge plates (31) has a bushing (33) with internal threads.

8. The frame box according to claim 1, characterized in that: A rectangular groove (11) is provided below the end of the base platform (1) to restrict the end frame (2) to a 270-degree rotation position and prevent it from continuing to rotate below the base platform (1).

9. The frame box according to claim 1, characterized in that: The end frame (2) includes two parallel corner posts (21), which are connected to the two ends of the base platform (1) via the hinge device (3). The other end of the corner post (21) is fixed with a corner piece (22).

10. The frame box according to claim 9, characterized in that: The base platform (1) is provided with a cylindrical pin (17) on its side. When the end frame (2) is in the 0-degree rotation position, the cylindrical pin (17) is inserted into the corner hole of the corner piece (22).

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