Folding shelf and its linkage locking structure

Abstract

The present invention discloses a folding shelf and its linkage locking structure; the linkage locking structure comprises: a fixed frame, a support rod and a linkage switch; the fixed frame is connected to a support plate of the folding shelf, one end of the support rod is slidably connected to the fixed frame, and the other end is hinged to a mounting bracket of the folding shelf; the linkage switch is rotationally connected to the fixed frame; when the support plate is in an unfolded state, one end of the linkage switch presses the support rod; when the support plate is in a folded state, the other end of the linkage switch hooks the folding plate group of the folding shelf; the folding shelf comprises a mounting bracket, a folding plate group, a support plate and the linkage locking structure. The present invention can lock the support plate in a folded state to the mounting bracket, thereby preventing the support plate in the folded state from shaking, and the folding shelf also has a hidden handle, which is convenient for users to move the folded shelf in a folded state.

Description

Technical Field

[0001] The invention relates to the technical field of folding shelves, and in particular to a folding shelf and a linkage locking structure thereof. Background Art

[0002] Shelves are commonly used daily necessities in daily life, because they have many layers and can hold more items, and take up less space when the same number of items is placed; but the shelves are not very convenient to move, and are not convenient to store; therefore, people set up hinge structures so that the shelves can be folded, and even set foldable trays on both sides of the shelves.

[0003] However, the folded support plate is easy to open; when a person moves the folding shelf, his fingers are placed on the mounting bracket of the folding shelf, and the support plate will keep shaking as the folding shelf moves, so the support plate is easy to pinch the person's fingers; on the other hand, the constantly shaking support plate makes the moving work of the folding shelf very inconvenient. Summary of the invention

[0004] The object of the present invention is to provide a linkage locking structure of a folding shelf, which can lock a folded tray on a mounting bracket to prevent the folded tray from shaking.

[0005] In order to achieve the above object, the technical solution of the present invention is:

[0006] A linkage locking structure for a folding shelf, comprising:

[0007] A fixed frame connected to the support plate of the folding shelf;

[0008] A support rod, one end of which is connected to the fixed frame and moves back and forth on the fixed frame, and the other end of which is hinged to the mounting bracket of the folding shelf;

[0009] A linkage switch, which is rotatably connected to the fixed frame;

[0010] When the support plate is in the unfolded state, one end of the linkage switch presses the support rod to prevent the support rod from moving back and forth on the fixed frame;

[0011] When the supporting plate is in a folded state, the other end of the linkage switch hooks the folding plate group of the folding shelf.

[0012] The interlocking locking structure of the present invention connects the fixed frame to the supporting plate of the folding shelf, thereby allowing the support rod hinged to the mounting bracket to slide back and forth on the fixed frame; when the supporting shelf is fully unfolded, one end of the interlocking switch connected to the fixed frame is rotated to press the support rod to prevent the support rod from moving back and forth on the fixed frame, thereby fixing the supporting shelf in a fully unfolded state; when the supporting shelf is in a folded state, the other end of the interlocking switch hooks the folding plate group of the folding shelf, thereby preventing the folded supporting plate from shaking continuously.

[0013] Another object of the present invention is to provide a folding shelf, which includes a mounting bracket, a plurality of folding plate groups and a supporting plate connected to the mounting bracket, and the above-mentioned interlocking locking structure.

[0014] Furthermore, the folding shelf also includes a hidden handle;

[0015] The folding plate group includes a top plate group, a bottom plate group and / or a middle plate group, and the hidden handle is arranged at the bottom of the top plate group.

[0016] As a specific embodiment, each of the folding plate groups includes a first folding plate and a second folding plate hinged to each other;

[0017] When the folding plate group is folded, a gap is formed between the first folding plate and the second folding plate, and the gap matches the height of the hidden handle protrusion.

[0018] The folding shelf of the present invention is provided with a hidden handle on the top folding plate group, and when the folding plate group is in the unfolded state, the hidden handle is hidden at the bottom of the folding plate group; when the folding plate group is in the folded state, because the distance from the hinge of the first and second folding plates to the hinge of the second folding plate and the mounting bracket is greater than the distance from the hinge to the hinge of the first folding plate and the mounting bracket, the bottom portion of the first folding plate is exposed, thereby exposing the hidden handle arranged at the bottom of the first folding plate, and the user can hold the hidden handle by hand.

[0019] For better understanding and implementation, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the linkage locking structure of Example 1 of the present invention when the support plate is unfolded;

[0021] Figure 2 is a schematic structural diagram of the linkage locking structure of Example 1 of the present invention when the support plate is folded;

[0022] Figure 3is a schematic structural diagram of a folding shelf with three-layer folding plate groups in an unfolded state according to Embodiment 2 of the present invention;

[0023] Figure 4 is a schematic structural diagram of a folding shelf with two folding plate groups in an unfolded state according to Embodiment 2 of the present invention;

[0024] Figure 5 is a schematic diagram of the connection between the hidden handle and the folding plate group in the folding shelf of Example 2 of the present invention;

[0025] Figure 6 is a schematic diagram of the positions of the folding plate group and the hidden handle when the folding shelf of Example 2 of the present invention is in an unfolded state;

[0026] Figure 7 is a schematic diagram of the positions of the folding plate group and the hidden handle when the folding shelf of Example 2 of the present invention is in the folding process;

[0027] Figure 8 is a cross-sectional schematic diagram of the folding plate group and the hidden handle when the folding shelf of Example 2 of the present invention is in the folding process;

[0028] Fig. 9 is a cross-sectional schematic diagram of the folding plate group and the hidden handle when the folding shelf of Example 2 of the present invention is in a folded state;

[0029] Fig.10 It is a schematic diagram of the local structure of the folding shelf of Example 2 of the present invention when it is in a folded state. DETAILED DESCRIPTION

[0030] In order to better illustrate the present invention, the present invention is further described in detail below with reference to the accompanying drawings.

[0031] Example 1

[0032] See also Figure 1 , a linkage locking structure of a folding shelf, comprising:

[0033] A fixed frame 4 connected to the support plate 3 of the folding shelf;

[0034] Specifically, the fixing frame 4 includes a left fixing frame 402 and a right fixing frame 403 that are symmetrically arranged, and a first connecting rod 401 connected between the left fixing frame 402 and the right fixing frame 403;

[0035] The left fixing frame 402 , the right fixing frame 403 and the first connecting rod 401 are all arranged at the bottom of the supporting plate 3 .

[0036] A support rod 5, one end of which is slidably connected to the fixed frame 4, and the other end of which is hinged to the mounting bracket 2 of the folding shelf;

[0037] Specifically, the left and right fixing frames 402 and 403 are both provided with long holes, which are arranged along the length direction of the supporting plate to form a sliding groove 404 of the fixing frame 4;

[0038] One end of the support rod 5 slidably connected to the fixed frame 4 is provided with a second connecting rod 502 , and the second connecting rod 502 is clamped in the sliding groove 404 .

[0039] A linkage switch 6, which is rotatably connected to the fixed frame 4;

[0040] When the support plate 3 is in the unfolded state, one end of the linkage switch 6 presses the support rod 5 to prevent the support rod 5 from moving back and forth on the fixed frame 4;

[0041] Specifically, the linkage switch 6 is sleeved on the first connecting rod 401 , and a torsion spring 7 is connected between the linkage switch 6 and the first connecting rod 401 .

[0042] When the supporting plate 3 is in the folded state, the other end of the linkage switch 6 hooks the folding plate group 2 of the folding shelf.

[0043] Specifically, a locking strip 601 is provided at one end of the linkage switch 6. When the support plate 3 is in the unfolded state, the locking strip 601 is pressed against the second connecting rod 502. A locking hook 602 is provided at the other end of the linkage switch 6. When the support plate 3 is in the folded state, the locking hook 602 hooks the folding plate group 2 of the folding shelf.

[0044] like Figure 1 As shown, when the support plate 3 is in the unfolded state, the second connecting rod 502 of the support rod 5 is in the sliding groove 404 close to the end of the mounting bracket 1; in the absence of other external forces, the torsion spring 7 pulls the linkage switch 6 back to the initial position, at which time one end of the linkage switch 6 presses the second connecting rod 502 against the end of the sliding groove 404 close to the mounting bracket 1 to prevent the second connecting rod 502 from sliding in the sliding groove 404, thereby fixing the support rack in the fully unfolded state.

[0045] When the support plate 3 needs to be turned from the unfolded state to the folded state, an upward external force is applied to the other end of the linkage switch 6, so that the end of the linkage switch 6 pressed against the second link 502 rotates downward, so that the linkage switch 6 is separated from the support rod 5. At this time, the second link 502 can slide freely in the sliding groove 404, and then the support plate 3 is turned downward under the action of gravity, and the second link 502 slides to the other end of the sliding groove until the support plate 3 is folded on the mounting bracket 1; Figure 2As shown, at this time, no force is applied to the other end of the linkage switch 6, and the torsion spring 7 pulls the linkage switch 6 back to the initial position, and the other end of the linkage switch 6 hooks the folding plate group 2 on the folding shelf, thereby preventing the support plate 3 in the folded state from shaking continuously.

[0046] It should be noted that when the supporting plate 3 is in a folded state, no matter whether the folding plate group 2 of the folding shelf is in a folded state or an unfolded state, as long as no external force is applied to the locking hook 602 of the linkage switch 6, the locking hook 602 can be hooked on the folding plate group 2.

[0047] Moreover, if Figure 3 As shown, the folding plate group 2 includes a top plate group, a middle plate group and a bottom plate group; Figure 4 As shown, the folding plate group 2 includes a top plate group and a bottom plate group.

[0048] When the linkage locking structure is installed on a folding shelf with three-layer folding plate groups, the locking buckle 602 hooks the middle plate group when the supporting plate is in a folded state; when the linkage locking structure is installed on a folding shelf with only two-layer folding plate groups, the locking buckle 602 hooks the bottom plate group when the supporting plate is in a folded state.

[0049] Example 2

[0050] like Figure 1 , 3 As shown, this embodiment provides a folding shelf, which includes a mounting bracket 1, a plurality of folding plate groups 2 and a supporting plate 3 connected to the mounting bracket 1, and the above-mentioned linkage locking structure.

[0051] Preferably, if Figure 5 As shown, the foldable shelf also includes a hidden handle 8;

[0052] Specifically, whether in Figure 3 The folding shelf with three folding plate groups shown is still in Figure 4 In the folding shelf shown having only two layers of folding board groups, the hidden handle 8 is arranged at the bottom of the top board group.

[0053] like Figure 3 , 4 As shown in FIG. 5 , each of the folding plate groups 2 includes a first folding plate 201 and a second folding plate 202 that are hinged to each other;

[0054] like Figure 6-9 As shown, when the folding plate set 2 is folded, a gap d is formed between the first folding plate 201 and the second folding plate 202 , and the gap d matches the height h of the protrusion of the hidden handle 8 .

[0055] Preferably, if Figure 6 As shown, the hinge of the first folding plate and the mounting bracket forms a rotation axis A, the hinge of the second folding plate and the mounting bracket forms a rotation axis B, and the hinge of the first and second folding plates forms a rotation axis C; Figure 7 , 8 As shown, during the folding process of the folding plate group 2, the rotation axis C simultaneously performs a circular motion with the rotation axes A and B as the center, so that the rotation axes A and B gradually approach each other, thereby causing the first and second folding plates to change from unfolding to folding; during the above process, the gap d formed between the first and second folding plates gradually increases, and when the hidden handle 8 at the bottom of the first folding plate 201 approaches the gap d, the gap d is just greater than the height h of the hidden handle 8 protrusion, so that the hidden handle 8 can just pass through the gap d and be exposed on the outside of the folding shelf; as shown in FIG. Fig. 9 As shown, the user can pull the folding shelf to move by pulling the hidden handle, which is convenient for the user to move the folding shelf in the folded state.

[0056] On the contrary, when the first and second folding plates are turned from folding to unfolding, the gap d formed between the first and second folding plates gradually becomes smaller; when the hidden handle 8 at the bottom of the first folding plate 201 is close to the gap d, the gap d still matches the height h of the protrusion of the hidden handle 8, so that the hidden handle 8 can just pass through the gap d, and the hidden handle is hidden under the folding plate group 2 again.

[0057] Preferably, a positioning column 2011 is provided on the first folding plate 201, and a positioning hook 2021 is provided on the second folding plate 202; Figure 6 As shown, when the folding plate group 2 is in the unfolded state, the positioning hook 2021 is hooked on the positioning column 2011. Since the positions of the positioning column 2011 and the positioning hook 2021 match each other, the first folding plate 201 and the second folding plate 202 are parallel to each other; Figure 7 As shown, when the folding plate set 2 is in a folded state, the positioning column 2011 and the positioning hook 2021 rotate with the first folding plate 201 and the second folding plate 202 respectively.

[0058] Preferably, a roller 9 is provided at the bottom of the mounting bracket 1 on one side; when the folding plate group 2 is folded or unfolded, the user can use the mounting bracket 1 on one side as a fulcrum and move the mounting bracket on the other side inward or outward through the action of the roller 9, making the use of the folding shelf more convenient.

[0059] Preferably, if Figure 3 As shown, the folding shelf further comprises a folding pull rod 10, which is respectively connected to the hinges of the first folding plate 201 and the second folding plate 202 in each group of the folding plate groups 2.

[0060] Specifically, a sliding sleeve 11 is sleeved on the folding pull rod 10, and support beams 12 are hinged on both sides of the sliding sleeve 11, and the other ends of the support beams 12 are respectively connected to the hinges of the folding plate group 2 at the bottom layer and the mounting bracket;

[0061] Among them, Figure 3 As shown, the two support beams 12 are hinged at the hinge between the first folding plate 201 or the second folding plate 202 and the mounting bracket 1 .

[0062] In this embodiment, a folding rod is connected to the hinge of the first folding plate and the second folding plate in each group of folding plates; when the folding rod is lifted upward, the hinge between the first folding plate and the second folding plate is also lifted upward, thereby causing the hinges between the first folding plate and the mounting bracket, and the hinges between the second folding plate and the mounting bracket to move inward, so that the user only needs to pull the folding rod upward with one hand to change the folding shelf from an unfolded state to a folded state.

[0063] Furthermore, in this embodiment, a sliding sleeve is provided on the folding pull rod, and two support beams are hinged on the sliding sleeve. The other ends of the support beams are respectively connected to the hinges between the folding plate group at the bottom layer and the mounting bracket. In addition, by setting the lengths of the support beams to be equal, the movements of the first and second folding plates are synchronized, and the folding shelves can be provided with stable support.

[0064] Preferably, if Figure 3 , 4 As shown in FIG. 10 , a limiting column 13 is provided at the hinge between the folding plate group 2 and the mounting bracket 1 , and the limiting column is provided correspondingly to the folding pull rod 10 .

[0065] Specifically, by setting a limit column at the hinge of the folding plate group and the mounting bracket, and the limit column and the folding pull rod are set on the same side; Fig.10 As shown, when the folding shelf is in a folded state, the limit column is close to the folding rod; when the folding shelf is moved diagonally, the limit column on one side will abut against the folding rod, so that the first or second folding plate on that side can no longer bend downward, and since the movement of the first and second folding plates is synchronized, the second or first folding plate on the other side can no longer bend downward; therefore, when the user moves the folding shelf diagonally, the folding plate group of the folding shelf can still remain in a folded state.

[0066] Preferably, a pull ring 14 is also provided on the top of the folding pull rod 10, so that the user can lift the folding pull rod upward more conveniently and easily.

[0067] The folding shelf and the linkage locking structure thereof of the present invention can lock the supporting plate in the folded state onto the mounting bracket, thereby preventing the supporting plate in the folded state from shaking.

[0068] Moreover, the folding shelf also has a hidden handle, which is hidden under the folding plate group when the folding shelf is unfolded and does not affect normal use. When the folding shelf is folded, the hidden handle can be exposed on the outside of the folding shelf, making it convenient for users to move the folded folding shelf.

[0069] Furthermore, those skilled in the art may combine and associate different embodiments or examples and features of different embodiments or examples described in this specification without mutual contradiction.

[0070] In the description of the present invention, it is necessary to understand that the terms "vertical", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection content of the present invention.

[0071] If the words "first", "second", etc. are used in this document to limit components, those skilled in the art should know that the use of "first" and "second" is only to facilitate the description of the present invention and simplify the description. Unless otherwise stated, the above words have no special meaning.

[0072] The present invention is not limited to the above-mentioned embodiments. If various changes or modifications to the present invention do not depart from the spirit and scope of the present invention, and if these changes and modifications fall within the scope of the claims and equivalent technologies of the present invention, the present invention is also intended to include these changes and modifications.

Claims

1. A linkage locking structure for a folding shelf, characterized in that: include: A fixed frame connected to the support plate of the folding shelf; A support rod, one end of which is slidably connected to the fixed frame, and the other end of which is hinged to the mounting bracket of the folding shelf; A linkage switch, which is rotatably connected to the fixed frame; When the support plate is in the unfolded state, one end of the linkage switch presses the support rod to prevent the support rod from moving back and forth on the fixed frame; When the supporting plate is in the folding state, the other end of the linkage switch hooks the folding plate group of the folding shelf; The fixed frame includes a left fixed frame and a right fixed frame which are symmetrically arranged, and a first connecting rod connected between the left fixed frame and the right fixed frame; The linkage switch is sleeved on the first connecting rod, and a torsion spring is connected between the linkage switch and the first connecting rod; The left and right fixing frames are both provided with long holes, and the long holes are arranged along the length direction of the supporting plate to form a sliding groove of the fixing frame; A second connecting rod is provided at one end of the support rod, and the second connecting rod is inserted into the sliding groove; A locking strip is provided at one end of the linkage switch, and when the support plate is in the unfolded state, the locking strip is pressed against the second connecting rod; The other end of the linkage switch is provided with a locking hook, and when the supporting plate is in a folded state, the locking hook hooks the folding plate group of the folding shelf.

2. A folding shelf, comprising a mounting bracket, a plurality of folding plate groups connected to the mounting bracket and a supporting plate, characterized in that: Including the interlocking locking structure according to claim 1; Hidden carry handle; The folding plate group includes a top plate group, a bottom plate group and / or a middle plate group, and the hidden handle is arranged at the bottom of the top plate group; Each of the folding plate groups comprises a first folding plate and a second folding plate hinged to each other; When the folding plate group is folded, a gap is formed between the first folding plate and the second folding plate, and the gap matches the height of the hidden handle protrusion.

3. The folding shelf according to claim 2, characterized in that: Also includes: A folding pull rod is respectively connected to the hinges of the first folding plate and the second folding plate in each group of folding plates.

4. The folding shelf according to claim 3, characterized in that: Also includes: The folding pull rod is sleeved with a sliding sleeve, and support beams are hinged on both sides of the sliding sleeve, and the other ends of the support beams are respectively connected to the hinges of the folding plate group at the bottom layer and the mounting bracket; Wherein, the support beam is hinged at a hinge between the first folding plate or the second folding plate and the mounting bracket.

5. The folding shelf according to claim 4, characterized in that: Also includes: A limiting column is arranged at the hinge between the folding plate group and the mounting bracket, and the limiting column is correspondingly arranged on the side of the folding pull rod.

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