CN220045217U - Multifunctional folding mechanism and folding bookshelf - Google Patents

Abstract

The utility model provides a multifunctional folding mechanism which comprises a fixed rod, an upper cover and a lower cover, wherein the upper cover and the lower cover are rotationally connected with the fixed rod to form a supporting state and a folding state, the upper cover and the lower cover are rotationally connected with the fixed rod, and the multifunctional folding mechanism further comprises a book holder which is connected with the upper cover and the lower cover and is slidably arranged with the fixed rod, so that the upper cover, the lower cover and the fixed rod can be rotationally used for the supporting state or the upper cover, the lower cover and the fixed rod can be locked for the folding state. The utility model can lock the whole folding mechanism in the folding state by utilizing the book holder which is arranged in a sliding way with the fixed rod on the basis of the prior art, adopts simple parts, avoids the problem that the upper cover and the lower cover are easy to separate in the folding state due to the fact that the locking mechanism is not necessarily arranged in the prior art, and has the advantages of simple structure, less number of required parts, less material loss and better use experience.

Description

Multifunctional folding mechanism and folding bookshelf

Technical Field

The utility model belongs to the technical field of bookshelves, and particularly relates to a multifunctional folding mechanism and a folding bookshelf.

Background

The bookshelf is mainly used for office work and study processes and is used for supporting books or books so as to reduce the conditions of eye fatigue, blind points of visual angles and the like caused by larger angles between the surfaces of objects and the visual lines of eyes.

For example, the patent application No. cn202222269955.X filed by the inventor in the prior art is entitled a support fixing mechanism and a support bookshelf, and the bookshelf described in the patent includes a fixed body, and a left body and a right body rotatably provided on the fixed body, wherein the left body and the right body are in a plate-shaped structure and are rotatably connected with the fixed body through shaft pins, so that the left body and the right body can be unfolded for supporting a book or folded for storage.

The bookshelf can lock the fixed main body with the left main body and the right main body in the unfolding and using process, so that the left main body and the right main body are prevented from being folded in the using process, and the using appearance is prevented from being influenced. However, in the technology of the patent, the left main body and the right main body can be locked and limited in use, the use is not affected, and corresponding locking mechanisms are not arranged after the left main body and the right main body are folded after unlocking, so that the folded bookshelf actually has the problem of unstable folding.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a multifunctional folding mechanism and a folding bookshelf, which solve the problem that the folded bookshelf in the prior art is not firm in folding in practice.

According to the embodiment of the utility model, the multifunctional folding mechanism comprises a fixed rod, an upper cover and a lower cover which are both rotationally connected with the fixed rod, wherein the upper cover and the lower cover are rotationally connected with the fixed rod to form a supporting state and a folding state, and the multifunctional folding mechanism also comprises a book holder which is both connected with the upper cover and the lower cover,

the book rest and the fixed rod are arranged in a sliding way, so that the upper cover, the lower cover and the fixed rod can rotate for a supporting state or can be locked for a folding state.

Further, the book rest is provided with two sliding limit grooves respectively matched with the upper cover and the lower cover, the upper cover and the lower cover are respectively provided with limit protrusions matched with the two sliding limit grooves,

the sliding limiting groove comprises a sliding groove and a rotating groove which are communicated, the limiting protrusion and the sliding groove slide along the sliding direction of the book rest and the fixed rod, the limiting protrusion is positioned in the sliding groove to enable the upper cover or the lower cover to be locked with the fixed rod, and the limiting protrusion slides into the rotating groove to enable the upper cover or the lower cover to be rotated with the fixed rod.

Further, the spacing arch is square, the width and the spacing protruding adaptation of sliding tray, it is greater than the width of sliding tray to rotate the groove width and make spacing protruding rotatable setting in rotating the inslot.

Further, two limiting blocks which are matched with the upper cover and the lower cover respectively are arranged on the book rest and are used for limiting the rotation angles of the upper cover, the lower cover and the fixed rod to form a supporting state.

Further, the upper cover and the lower cover are respectively provided with a limiting groove matched with the limiting block, and the limiting block is positioned in the matched limiting groove when in a folding state.

Further, upper cover, lower cover are all rotated through the pin and are connected with the dead lever, be equipped with the pin groove of perpendicular pin axial bar on the book holds in the palm, arbitrary the one end of pin is inlayed and is established to the pin inslot and follow pin groove length direction and slide, just when the pin level sets up the state, the pin groove is located vertical direction.

Further, the book rest is of a groove type structure, the pin groove is formed in the outer bottom of the book rest, and the two sliding limit grooves are symmetrically formed in the book rest and are formed by a plurality of limit strips arranged in the bottom of the book rest.

Further, the plurality of limiting strips comprise a center strip, two straight strips and arc strips, wherein the two straight strips and the arc strips are arranged at intervals on two sides of the center strip, are arranged outside the two straight strips, are parallel to the length direction of the pin groove, are arranged near any end parts of the straight strips,

the center strip and the two straight strips form two sliding grooves respectively, the straight strips and the arc strips which are positioned on the same side of the center strip form a rotating groove, and the length of the straight strips is smaller than that of the center strip so that the sliding grooves are communicated with the rotating groove.

Further, the arc side of the arc strip is outwards protruded along the center strip.

The utility model also provides a folding bookshelf, which comprises the folding mechanism.

Compared with the prior art, the utility model has the following beneficial effects: the utility model can lock the whole folding mechanism in the folding state by utilizing the book holder which is arranged in a sliding way with the fixed rod on the basis of the prior art, adopts simple parts, avoids the problem that the upper cover and the lower cover are easy to separate in the folding state due to the fact that the locking mechanism is not necessarily arranged in the prior art, and has the advantages of simple structure, less number of required parts, less material loss and better use experience.

Drawings

FIG. 1 is a schematic view of the structure of the present utility model in a supporting state;

FIG. 2 is a schematic view of the structure of FIG. 1 at another angle;

FIG. 3 is an exploded view of the structure of FIG. 1;

FIG. 4 is a schematic view of the structure of the utility model without the book holder;

FIG. 5 is an enlarged view of portion A of FIG. 4;

FIG. 6 is a schematic view of the structure of the cradle-type side of the present utility model;

FIG. 7 is a schematic view of the structure of FIG. 6 at another angle;

FIG. 8 is a schematic view of the structure of the outer bottom side of the book block of the utility model;

FIG. 9 is a front view of FIG. 1;

FIG. 10 is a cross-sectional view taken along line A-A of FIG. 9;

FIG. 11 is a schematic view of the structure of the present utility model in a folded state;

FIG. 12 is a rear view of FIG. 11;

fig. 13 is a sectional view taken along line B-B of fig. 12.

In the above figures: 1. a fixed rod; 11. a pin; 2. an upper cover; 20. a lower cover; 21. a notch groove; 22. a limit groove; 23. a limit step; 24. a limit protrusion; 3. a book rest; 31. a limiting block; 32. an arc-shaped strip; 33. a straight line; 34. a center bar; 35. a rotating groove; 36. a sliding groove; 37. a sliding limit groove; 38. pin grooves.

Detailed Description

The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.

Example 1

As shown in fig. 1, 2, 3 and 11, the embodiment of the utility model provides a multifunctional folding mechanism, which comprises a fixed rod 1, and an upper cover 2 and a lower cover 20 which are both rotatably connected with the fixed rod 1, wherein the upper cover 2 and the lower cover 20 are rotatably connected with the fixed rod 1 to form a supporting state and a folding state, and specifically, the fixed rod 1 provided by the utility model is in a strip-shaped structure, the upper cover 2 and the lower cover 20 are in a plate-shaped structure, the upper cover 2 and the lower cover 20 are connected with the fixed rod 1 through pins 11 consistent with the length direction of the fixed rod 1, so that the upper cover 2 and the lower cover 20 can be rotatably opened with the fixed rod 1 to form a supporting state for placing books or other components, or the upper cover 2 and the lower cover 20 are rotatably contacted to realize a folding state convenient to carry. Since the upper cover 2, the lower cover 20 and the fixing rod 1 are connected by the pins 11, the connection positions of the upper cover 2, the lower cover 20 and the fixing rod 1 are not limited, so that the upper cover 2 and the lower cover 20 are easy to separate in the portable process, and if the folding mechanism is used for clamping devices, articles placed in the upper cover 2 and the lower cover 20 may fall down. For this purpose, the embodiment is further provided with a book rest 3 on the basis of the prior art, the book rest 3 is connected with the upper cover 2 and the lower cover 20, and the book rest 3 and the fixing rod 1 are slidably arranged to enable the upper cover 2, the lower cover 20 and the fixing rod 1 to be rotatable for a supporting state or enable the upper cover 2, the lower cover 20 and the fixing rod 1 to be locked for a folding state.

As shown in fig. 3, 4, 5, 6, 7 and 8, specifically, in order to enable the upper cover 2 and the lower cover 20 to rotate or not when the book holder 3 slides with the fixing rod 1, in this embodiment, the book holder 3 is provided with two sliding limiting grooves 37 respectively matched with the upper cover 2 and the lower cover 20, the upper cover 2 and the lower cover 20 are respectively provided with limiting protrusions 24 matched with the two sliding limiting grooves 37, the sliding limiting grooves 37 include sliding grooves 36 and rotating grooves 35 which are arranged in a communicating manner, the limiting protrusions 24 and the sliding grooves 36 slide along the sliding direction of the book holder 3 and the fixing rod 1, the limiting protrusions 24 are located in the sliding grooves 36 to lock the upper cover 2 or the lower cover 20 with the fixing rod 1, and the limiting protrusions 24 slide into the rotating grooves 35 to enable the upper cover 2 or the lower cover 20 to rotate with the fixing rod 1. By utilizing the cooperation of the limiting bulge 24, the sliding groove 36 and the rotating groove 35, when the limiting bulge 24 is in the sliding groove 36, the upper cover 2 or the upper cover 2 cannot rotate, and only under the action of external force, the book holder 3 is slid, so that the limiting bulge 24 enters the corresponding rotating groove 35, the upper cover 2 and the lower cover 20 can be rotated by the external force, and the upper cover 2, the lower cover 20 and the fixed rod 1 can form a supporting state.

As shown in fig. 4, 5, 6, 7 and 8, specifically, in order to make the limit protrusion 24 only slide in the sliding groove 36, the limit protrusion 24 is limited in this embodiment, the limit protrusion 24 is square, the sliding groove 36 is in a rectangular groove structure, the width of the sliding groove 36 is adapted to the limit protrusion 24, the limit protrusion 24 only slides in the sliding groove 36 and cannot rotate, and then when the book holder 3 slides by an external force to place the limit protrusion 24 in the sliding groove 36, the upper cover 2, the lower cover 20 and the fixing rod 1 are folded for carrying conveniently. The rotation groove 35 is convenient for the rotation of the limit protrusion 24, and thus the supporting state can be realized, and for this purpose, the groove width of the rotation groove 35 is larger than that of the sliding groove 36, so that the limit protrusion 24 can be rotatably arranged in the rotation groove 35. When the folding book holder is used, the book holder 3 is pushed by external force, the limiting bulge 24 moves to the outside of the rotating groove 35 along the sliding groove 36, the upper cover 2 and the lower cover 20 are controlled to rotate by external force, so that the book holder 3 can reach a supporting state, when folding is needed, the upper cover 2 and the lower cover 20 are rotated and overlapped, then the book holder 3 is pulled by the external force, the limiting bulge 24 enters the sliding groove 36, locking in the folding state can be realized, the problem that a folding mechanism after folding can be unfolded is avoided, the folding mechanism can be used for clamping and portability with other objects, and the application scene of the folding mechanism is expanded.

As shown in fig. 3, in order to enable the upper cover 2 and the lower cover 20 to realize angle control in the supporting state, in this embodiment, two limiting blocks 31 are disposed on the book rest 3 and used in cooperation with the upper cover 2 and the lower cover 20 respectively, and the two limiting blocks 31 are used for limiting the rotation angles of the upper cover 2, the lower cover 20 and the fixing rod 1 to form a supporting state.

In order to facilitate the folding state, the presence of the limiting block 31 does not affect the closing of the upper cover 2 and the lower cover 20, in this embodiment, the upper cover 2 and the lower cover 20 are respectively provided with limiting grooves 22 matched with the limiting block 31, and in the folding state, the limiting block 31 is located in the matched limiting grooves 22.

Example 2

In embodiment 1, the specific positional relationship of each component is not limited, the setting positions of each component in time may be multiple, and the above functions and matching relationships may be achieved, and in this embodiment, on the basis of embodiment 1, one positional relationship of each component is described, specifically, as shown in fig. 1, 9, 10, 11, 12, and 13, in order to achieve sliding connection between the book holder 3 and the fixing rod 1, a strip-shaped pin slot 38 perpendicular to the axial direction of the pin 11 is provided on the book holder 3, one end of any pin 11 is embedded into the pin slot 38 and slides along the length direction of the pin slot 38, and when the pin 11 is in a horizontal setting state, the pin slot 38 is located in a vertical direction. By the positional relationship of the pin 11 and the pin groove 38, the mounting position and the movement relationship of the slide restricting groove 37 and the restricting projection 24 can be defined. As shown in fig. 6-8, specifically, the book rest 3 has a groove structure, the pin groove 38 is formed at the outer bottom of the book rest 3, and two sliding limiting grooves 37 are symmetrically formed in the book rest 3 and are formed by a plurality of limiting strips arranged at the bottom of the book rest 3. The limiting strips comprise a center strip 34, two straight strips 33 and an arc strip 32 positioned outside the two straight strips 33, wherein the two straight strips 33 are arranged at intervals on two sides of the center strip 34, the center strip 34 and the straight strips 33 are parallel to the length direction of the pin groove 38, the arc strip 32 is arranged close to any end part of the straight strips 33, the center strip 34 and the two straight strips 33 respectively form two sliding grooves 36, the straight strips 33 positioned on the same side of the center strip 34 and the arc strip 32 form a rotating groove 35, and the length of the straight strips 33 is smaller than that of the center strip 34 so that the sliding grooves 36 are communicated with the rotating groove 35. The arcuate sides of the arcuate strips 32 project outwardly along the central strip 34.

As shown in fig. 4 and 5, the upper cover 2 and the lower cover 20 are provided with notch grooves 21 for sliding the book rest 3, the notches of the two notch grooves 21 are arranged oppositely to form a mounting space for sliding the book rest 3, and the limiting protrusions 24 are arranged on the inner sides of the notch grooves 21 and embedded in the book rest 3 to be matched with a plurality of limiting strips. The two limiting blocks 31 are respectively arranged on the two straight lines 33 and protrude towards the opening of the book holder 3, can be contacted with the upper cover 2 or the lower cover 20 in a supporting state, and are used for supporting and limiting the trend of the upper cover 2 or the lower cover 20 continuously overturning along the pin 11. And a limit step 23 matched with the limit bulge 24 is arranged on the inner side of each notch groove 21, and the limit bulge 24 and the concave part of the limit step 23 form a limit groove 22.

As shown in fig. 1-13, the working principle and the action process of the folding mechanism are as follows:

1. when the product is in a supporting state during unfolding and using, the book rest 3 is firstly pulled out a certain distance, so that the rotating groove 35 arranged on the book rest 3 reaches the maximum angle position where the square limiting protrusions 24 arranged on the upper cover 2 and the lower cover 20 need to rotate, and the upper cover 2 and the lower cover 20 can rotate by a certain angle. After the upper cover 2 and the lower cover 20 are rotated and unfolded, the limiting blocks 31 arranged on the book rest 3 are abutted against the corresponding surface planes of the upper cover 2 and the lower cover 20, so that the position of the book rest 3 can be limited, and the book rest 3 is prevented from backing when a book is put on.

2. When the product is folded, the upper cover 2 and the lower cover 20 are folded, the book rest 3 is pushed into the upper cover 2 and the lower cover 20, the straight parts of the sliding grooves 36 formed in the book rest 3 are abutted against the planes at the two ends of the square limiting protrusions 24 of the upper cover 2 and the lower cover 20, the upper cover 2 and the lower cover 20 are fixed at the moment and cannot be opened or rotated, the limiting blocks 31 formed in the book rest 3 are clamped in the corresponding limiting grooves 22 formed in the upper cover 2 and the lower cover 20, and at the moment, the book rest 3, the upper cover 2 and the lower cover 20 are fixed, so that the product is folded.

Example 3

The utility model also provides a folding bookshelf, which is provided with the folding mechanism expressed in the embodiment 1 or the embodiment 2.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims (10)

1. The utility model provides a multi-functional folding mechanism, includes the dead lever and all rotates upper cover and the lower cover of being connected with the dead lever, upper cover, lower cover rotate with the dead lever and form supporting state and folding state, its characterized in that: also comprises a book holder which is connected with the upper cover and the lower cover,

the book rest and the fixed rod are arranged in a sliding way, so that the upper cover, the lower cover and the fixed rod can rotate for a supporting state or can be locked for a folding state.

2. A multi-function folding mechanism as recited in claim 1, wherein: the book rest is provided with two sliding limit grooves respectively matched with the upper cover and the lower cover, the upper cover and the lower cover are respectively provided with limit protrusions matched with the two sliding limit grooves,

the sliding limiting groove comprises a sliding groove and a rotating groove which are communicated, the limiting protrusion and the sliding groove slide along the sliding direction of the book rest and the fixed rod, the limiting protrusion is positioned in the sliding groove to enable the upper cover or the lower cover to be locked with the fixed rod, and the limiting protrusion slides into the rotating groove to enable the upper cover or the lower cover to be rotated with the fixed rod.

3. A multi-function folding mechanism as defined in claim 2, wherein: the spacing arch is square, the width and the spacing protruding adaptation of sliding tray, it is greater than the width of sliding tray to rotate the groove width and make spacing protruding rotatable setting in rotating the inslot.

4. A multi-function folding mechanism as defined in claim 2, wherein: the book rest is provided with two limiting blocks which are respectively matched with the upper cover and the lower cover, and the two limiting blocks are used for limiting the rotation angles of the upper cover, the lower cover and the fixed rod to form a supporting state.

5. A multi-function folding mechanism as defined in claim 4, wherein: the upper cover and the lower cover are respectively provided with a limiting groove matched with the limiting block, and the limiting block is positioned in the matched limiting groove when in a folding state.

6. A multi-function folding mechanism according to any one of claims 2-5, wherein: the upper cover and the lower cover are both rotationally connected with the fixed rod through pins, the book rest is provided with a pin groove perpendicular to the axial direction of the pins, one end of each pin is embedded into the pin groove to slide along the length direction of the pin groove, and the pin groove is positioned in the vertical direction when the pins are horizontally arranged.

7. A multi-function folding mechanism as defined in claim 6, wherein: the book rest is of a groove type structure, the pin grooves are formed in the outer bottom of the book rest, and the two sliding limiting grooves are symmetrically formed in the book rest and are formed by a plurality of limiting strips arranged in the bottom of the book rest.

8. A multi-function folding mechanism as recited in claim 7, wherein: the plurality of limit bars comprise a center bar, two straight bars and an arc bar, wherein the two straight bars and the arc bar are arranged at intervals and positioned outside the two straight bars, the center bar and the straight bars are parallel to the length direction of the pin groove, the arc bar is arranged close to any end part of the straight bar,

the center strip and the two straight strips form two sliding grooves respectively, the straight strips and the arc strips which are positioned on the same side of the center strip form a rotating groove, and the length of the straight strips is smaller than that of the center strip so that the sliding grooves are communicated with the rotating groove.

9. A multi-function folding mechanism as recited in claim 8, wherein: the arc side of the arc strip is outwards protruded along the center strip.

10. A folding bookshelf, characterized in that: comprising a folding mechanism according to any of claims 1-9.