Turnover folding book stand

Abstract

The utility model discloses a turnover folding book stand which comprises a vertical plate and a transverse plate, one end of the vertical plate is provided with a shaft groove, one end of the transverse plate is provided with a shaft rod assembled with the shaft groove, the shaft rod and the shaft groove are connected in a limiting and rotating mode so that the vertical plate and the transverse plate can be turned over or folded in a limiting mode, and at least one special-shaped hole groove is formed in the shaft groove. The shaft rod is provided with a flat shaft part in interference fit with the special-shaped hole groove, and the special-shaped hole groove is provided with a limiting buckle used for preventing the shaft rod from being separated. The turnover folding book stand is easy to store and small in occupied space, the complex structure of a traditional folding book stand is simplified, and the shaft rod is in interference fit with the special-shaped hole groove of the shaft groove to achieve fixation in the unfolded state.

Description

Technical Field

[0001] The utility model relates to the technical field of stationery, and particularly relates to a flip - fold bookend. Background Art

[0002] A bookend is an item used to support books to stand steadily. It is mostly made of materials such as iron and stainless steel in an "L" shape and appears in pairs. There are many types of bookends on the market, made of various materials such as metal, plastic, and acrylic, which can prevent a row of standing books from tilting and falling, so as to prevent the corners, bending, or damage of the books.

[0003] Conventional bookends are not easy to store when not in use, take up a large amount of space, and have a large product packaging. While foldable bookends can greatly reduce the packaging. They can be folded and stored when not in use. The technical solution in patent CN202222830833.3 describes a bookend in the form of plug - in assembly. However, it still has a fixed gear in the folded state, or the vertical plate and the horizontal plate have to be disassembled to ensure relatively flat storage, which is very cumbersome, and there are many parts, which is not convenient for production and manufacturing. Summary of the Utility Model

[0004] To solve the above - mentioned technical problems, the utility model provides a flip - fold bookend.

[0005] The technical solution of the utility model is: a flip - fold bookend, including a vertical plate and a horizontal plate. One end of the vertical plate has an axial groove, and one end of the horizontal plate has a shaft rod assembled with the axial groove. The shaft rod is in limit rotational connection with the axial groove so that the vertical plate and the horizontal plate can be limitedly flipped or folded. At least one special - shaped hole groove is arranged in the axial groove, and the shaft rod has a flat shaft part in interference fit with the special - shaped hole groove. The special - shaped hole groove has a limit buckle for preventing the shaft rod from separating.

[0006] Further, a limit edge is arranged on the axial groove, and a limit stop edge is arranged on the shaft rod and is matched with the limit edge to make the included angle between the vertical plate and the horizontal plate a right angle.

[0007] Explanation: Through the setting of the limit edge on the axial groove and the limit stop edge on the shaft rod, the rotation angle can be limited and controlled, avoiding excessive flipping of the bookend, affecting the use effect of the bookend and the stability of the bookend structure. Through the mutual cooperation of the limit baffle and the limit edge, the unfolded state of the vertical plate and the horizontal plate can be in a 90° state perpendicular to each other.

[0008] Further, the special - shaped hole groove is a D - shaped hole.

[0009] Explanation: Using a D - shaped hole as the structure design of the special - shaped hole groove can facilitate the insertion of the flat shaft part and the interference fit between the flat shaft part and the special - shaped hole groove during rotation, thereby effectively realizing the fixing function of the unfolded state of the flip - fold bookend.

[0010] As an interference fit technical solution of the present utility model, the interference fit is the expansion and fixation of the flat shaft portion and the special-shaped hole groove in the unfolded state.

[0011] Explanation: By adopting the method of expanding and fixing the flat shaft portion and the special-shaped hole groove, it is also possible to achieve the fixation of the flat shaft portion and the special-shaped hole groove in the unfolded state, and there is no need to provide protrusions on the flat shaft portion, reducing the production and processing difficulty and making it more convenient for production and manufacturing.

[0012] As another interference fit technical solution of the present utility model, the interference fit is the unilateral interference fit of the flat shaft portion and the special-shaped hole groove. One side of the flat shaft portion has a protrusion, and there is a groove on the inner wall of the special-shaped hole groove of the inner side of the limit buckle that cooperates with the protrusion.

[0013] Explanation: By the cooperation of the protrusion on the flat shaft portion and the groove in the special-shaped hole groove, the stability of the interference fit between the flat shaft portion and the special-shaped hole groove can be improved, preventing the vertical plate or the horizontal plate from flipping in the unfolded state.

[0014] As another interference fit technical solution of the present utility model, the interference fit is the bilateral interference fit of the flat shaft portion and the special-shaped hole groove. Both sides of the flat shaft portion are symmetrically provided with protrusions, and there are two grooves on the inner wall of the special-shaped hole groove of the inner side of the limit buckle that cooperate with the protrusions one by one.

[0015] Explanation: On the basis of the unilateral interference fit, by the one-to-one cooperation of the protrusions on both sides of the flat shaft portion and the grooves in the special-shaped hole groove, the stability of the interference fit between the flat shaft portion and the special-shaped hole groove can be further improved, thereby preventing the vertical plate or the horizontal plate from flipping in the unfolded state.

[0016] The beneficial effects of the present utility model are as follows:

[0017] (1) The flip-fold bookend of the present utility model is easy to store, occupies little space, can greatly reduce the product packaging, and solves the problem that the traditional foldable bookend still has fixed gears in the folded state. Through the structural design of the flip-fold bookend, not only the complex structure of the traditional foldable bookend is simplified, but also the production and processing difficulty is reduced, making it convenient for production and manufacturing.

[0018] (2) The flip-fold bookend of the present utility model realizes the fixation in the unfolded state by the interference fit of the shaft rod and the special-shaped hole groove of the shaft groove, and provides a variety of ways to achieve the interference fit, which can be selected and manufactured according to actual production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the overall structural schematic diagram of the flip-fold bookend of the present utility model;

[0020] Figure 2It is a schematic structural diagram of the vertical plate of the present utility model;

[0021] Figure 3 It is a schematic structural diagram of the horizontal plate of Embodiment 1 of the present utility model;

[0022] Figure 4 It is a schematic structural diagram of the horizontal plate of Embodiment 2 of the present utility model;

[0023] Figure 5 It is a schematic structural diagram of the horizontal plate of Embodiment 3 of the present utility model;

[0024] Figure 6 It is a schematic assembly structure diagram of the flat shaft part and the special-shaped hole groove of the flip-fold bookstand of Embodiment 1 of the present utility model in the folded state;

[0025] Figure 7 It is a schematic assembly structure diagram of the flat shaft part and the special-shaped hole groove of the flip-fold bookstand of Embodiment 1 of the present utility model in the unfolded state;

[0026] Figure 8 It is a schematic assembly structure diagram of the flat shaft part and the special-shaped hole groove of the flip-fold bookstand of Embodiment 2 of the present utility model in the unfolded state;

[0027] Figure 9 It is a schematic assembly structure diagram of the flat shaft part and the special-shaped hole groove of the flip-fold bookstand of Embodiment 3 of the present utility model in the unfolded state;

[0028] Wherein, 1 - vertical plate, 11 - shaft groove, 12 - special-shaped hole groove, 13 - limit buckle, 14 - limit edge, 15 - protrusion, 16 - groove, 2 - horizontal plate, 21 - shaft rod, 22 - flat shaft part, 23 - limit stop edge. Specific embodiments

[0029] The following further details the present utility model in combination with specific embodiments to better reflect the advantages of the present utility model.

[0030] Embodiment 1:

[0031] A flip-fold bookstand, as Figure 1 shown, includes a vertical plate 1 and a horizontal plate 2, as Figure 2 shown, one end of the vertical plate 1 has a shaft groove 11, as Figure 3As shown, one end of the horizontal plate 2 has a shaft rod 21 that fits into the shaft groove 11. The shaft rod 21 is rotationally connected to the shaft groove 11 with limited movement, enabling the vertical plate 1 and the horizontal plate 2 to be flipped or folded with limited movement. Four special-shaped hole grooves 12 are provided in the shaft groove 11. Two special-shaped hole grooves 12 are respectively arranged at both ends of the shaft groove 11, and the other two special-shaped hole grooves 12 are equidistantly arranged on both sides of the shaft groove 11. The special-shaped hole groove 12 is a D-shaped hole, and the shaft rod 21 has a flat shaft part 22 that is in interference fit with the special-shaped hole groove 12. On the inner wall of the opening of the special-shaped hole groove 12, there is a limit buckle 13 for preventing the shaft rod 21 from separating; a limit edge 14 is provided on the shaft groove 11, and a limit stop edge 23 that cooperates with the limit edge 14 is provided on the shaft rod 21 to make the included angle between the vertical plate 1 and the horizontal plate 2 a right angle; among them, as Figure 6 and Figure 7 shown, the interference fit is the expansion and fixation of the flat shaft part 22 and the special-shaped hole groove 12 in the unfolded state.

[0032] The usage method of the above-mentioned flip-fold bookend is as follows:

[0033] Align each flat shaft part 22 of the shaft rod 21 of the horizontal plate 2 with each special-shaped hole groove 12 of the vertical plate 1 and press. Snap the shaft rod 21 into the shaft groove 11, and the installation of the horizontal plate 2 and the vertical plate 1 is completed;

[0034] When in use, just rotate the horizontal plate 2 or the vertical plate 1 forcefully to make the included angle between the horizontal plate 2 and the vertical plate 1 90°. Rotate the flat part of the flat shaft part 22 to the non-flat part to expand and tighten the special-shaped hole groove 12, and complete the fixation of the horizontal plate 2 and the vertical plate 1 in the unfolded state.

[0035] Embodiment 2: The difference between this embodiment and Embodiment 1 is that, as Figure 4 and Figure 8 shown, the interference fit is the unilateral interference fit between the flat shaft part 22 and the special-shaped hole groove 12. One side of the flat shaft part 22 has a protrusion 15, and on the inner wall of the special-shaped hole groove 12 inside the limit buckle 13, there is a groove 16 that cooperates with the protrusion 15; it can be understood that the flat shaft part 22 is a shaft rod with a small shaft diameter of 10mm that can be snapped into the special-shaped hole groove 12, and flat parts with a depth of 3mm along this direction are symmetrically arranged on both shaft parts perpendicular to the horizontal plate direction, and the protrusion 15 is arranged on the non-flat part on one side of the shaft rod 21.

[0036] The usage method of the above-mentioned flip-fold bookend:

[0037] It is basically the same as the usage method of the flip-fold bookend in Embodiment 1. The difference is that when in use, just rotate the horizontal plate 2 or the vertical plate 1 forcefully to make the included angle between the horizontal plate 2 and the vertical plate 1 90°. Snap the protrusion 15 into the groove 16 to complete the fixation of the horizontal plate 2 and the vertical plate 1 in the unfolded state.

[0038] Example 3: The difference between this example and Example 1 is that, as Figure 5 and Figure 9 shown, the interference fit is an interference fit between both sides of the flat shaft portion 22 and the special-shaped hole groove 12. Both sides of the flat shaft portion 22 are symmetrically provided with protrusions 15, and there are two grooves 16 on the inner wall of the special-shaped hole groove 12 inside the limit buckle 13 that cooperate with the protrusions 15 one by one.

[0039] The usage method of the flip-fold bookend in Example 1 is basically the same. The difference is that when it is needed to be used, just rotate the cross plate 2 or the vertical plate 1 forcefully to make the included angle between the cross plate 2 and the vertical plate 1 be 90°, and the protrusions 15 on both sides are respectively snapped into the corresponding grooves 16 to complete the fixation of the cross plate 2 and the vertical plate 1 in the unfolded state.

Claims

1. A flip - fold bookend, comprising a vertical board (1) and a horizontal board (2), characterized in that, One end of the vertical plate (1) has a shaft groove (11), one end of the horizontal plate (2) has a shaft rod (21) assembled with the shaft groove (11), and the shaft rod (21) is rotationally connected with the shaft groove (11) in a limited manner so that the vertical plate (1) and the horizontal plate (2) can be flipped or folded in a limited manner. At least one special-shaped hole groove (12) is arranged in the shaft groove (11), and a flat shaft portion (22) in interference fit with the special-shaped hole groove (12) is arranged on the shaft rod (21). A limit buckle (13) for preventing the shaft rod (21) from separating is arranged on the special-shaped hole groove (12).

2. The flip-fold bookend according to claim 1, wherein, A limit edge (14) is arranged on the shaft groove (11), and a limit stop edge (23) for making the included angle between the vertical plate (1) and the horizontal plate (2) a right angle is arranged on the shaft rod (21) and is matched with the limit edge (14).

3. The flip-fold bookend according to claim 1, wherein The special-shaped hole groove (12) is a D-shaped hole.

4. The flip - fold bookend according to claim 1, characterized in that, The interference fit is the expansion fixation of the flat shaft portion (22) and the special-shaped hole groove (12) in the unfolded state.

5. The flip-fold bookend according to claim 1, wherein The interference fit is the unilateral interference fit of the flat shaft portion (22) and the special-shaped hole groove (12). A protrusion (15) is arranged on one side of the flat shaft portion (22), and a groove (16) matched with the protrusion (15) is arranged on the inner wall of the special-shaped hole groove (12) on the inner side of the limit buckle (13).

6. The flip-fold bookend according to claim 1, wherein The interference fit is the bilateral interference fit of the flat shaft portion (22) and the special-shaped hole groove (12). Protrusions (15) are symmetrically arranged on both sides of the flat shaft portion (22), and two grooves (16) respectively matched with the protrusions (15) are arranged on the inner wall of the special-shaped hole groove (12) on the inner side of the limit buckle (13).

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