阅读说明：本技术 一种图书馆可折叠书桌 (Library's collapsible desk ) 是由 刘硕伟 于 2021-08-05 设计创作，主要内容包括：本发明公开了一种图书馆可折叠书桌,所述活动桌腿的顶端贴合有卡接座,所述卡接座的上表面活动连接有斜拉杆,且卡接座的外侧表面活动安装有滑块,所述斜拉杆的顶端活动安装在书桌体的内部,所述滑块套接在中通杆的外部,且滑块的内部设置有磁铁,所述磁铁的上方且在中通杆的顶端设置有相对应的线圈。通过身高来自行挤压副板在书桌体内部移动,直至金属块组接触后接通线圈内部电流,保证线圈产生的磁场磁极推动磁铁,保证滑块在中通杆向下移动,滑块带动卡接座移动的同时斜拉杆压迫卡接座摆动,使卡接座与活动桌腿脱离后无法继续支撑书桌,从而在折叠的作用下使整体的书桌规格改变,整体能够根据使用者的身高改变书桌的规格大小。(The invention discloses a foldable desk for a library, wherein a clamping seat is attached to the top end of a movable desk leg, an inclined pull rod is movably connected to the upper surface of the clamping seat, a sliding block is movably mounted on the surface of the outer side of the clamping seat, the top end of the inclined pull rod is movably mounted inside a desk body, the sliding block is sleeved outside a through rod, a magnet is arranged inside the sliding block, and a corresponding coil is arranged above the magnet and at the top end of the through rod. The auxiliary plate is extruded to move in the desk body through the height, the current inside the coil is conducted until the metal block is connected, the magnetic field magnetic poles generated by the coil push the magnet, the slider is guaranteed to move downwards in the through rod, the slider drives the clamping seat to move, meanwhile, the oblique pull rod presses the clamping seat to swing, the clamping seat and the movable desk legs cannot continue to support the desk after being separated, the integral desk is changed under the folding effect, and the integral desk can be changed in size according to the height of a user.)

1. A foldable library desk, comprising a desk body (1), characterized in that: the desk is characterized in that movable desk legs (2) are arranged at the bottom of the desk body (1) in a sliding mode, hinge cover plates (3) are movably arranged on the upper surface of the desk body (1), auxiliary plates (4) are slidably arranged on the left side and the right side of the hinge cover plates (3) in the desk body (1), metal block groups (5) are arranged at the joints of the auxiliary plates (4) and the desk body (1), and a vertical bookshelf (6) is arranged in the middle of the desk body (1) and below the hinge cover plates (3).

2. A library foldable desk according to claim 1, wherein: the top swing joint of book shelf (6) found has connecting rod (7), and found the bottom front surface movable mounting of book shelf (6) have arc pole (8), the top movable mounting of connecting rod (7) is in the inside of the desk body (1), the top movable mounting of arc pole (8) is at the rear surface of toothed disc (9), the surface engagement of toothed disc (9) has toothed plate frame (10), toothed plate frame (10) cup joints the outside at expansion plate (11), the laminating of the outside upper surface of expansion plate (11) has swinging arms (12).

3. A library foldable desk according to claim 2, wherein: expansion plate (11) set up the top at activity table leg (2), swing arm (12) and activity table leg (2) correspond the setting for from top to bottom, upright bookshelf (6) use the center of hinge apron (3) for accurate be bilateral symmetry setting, the outside of rack (10) is provided with the lug corresponding with swing arm (12).

4. A library foldable desk according to claim 1, wherein: the utility model discloses a desk, including activity table leg (2), joint seat (13) have been laminated on the top of activity table leg (2), the upper surface swing joint of joint seat (13) has oblique pull rod (14), and the outside surface movable mounting of joint seat (13) has slider (15), the top movable mounting of oblique pull rod (14) is in the inside of desk body (1), slider (15) cup joint the outside of well logical pole (16), and the inside of slider (15) is provided with magnet (18), the top of magnet (18) and the top of well logical pole (16) are provided with corresponding coil (17).

5. The library foldable desk of claim 4, wherein: the magnetic field magnetic pole that coil (17) below produced is opposite with the magnetic pole of opposite face magnet (18), electric connection between coil (17) and the metal block group (5), the spring has been taken in to the surface cover of well logical pole (16), well logical pole (16) and activity table leg (2) are for controlling parallel arrangement.

6. The library foldable desk of claim 4, wherein: the clamping seat (13) is of an L-shaped structure, the clamping seat (13) and the movable table legs (2) are arranged correspondingly, spring columns are arranged at the joints of the movable table legs (2) and the desk body (1), and the inclined pull rods (14) are obliquely arranged based on the inside of the desk body (1).

Technical Field

The invention relates to the technical field of school supplies, in particular to a foldable desk for a library.

Background

The library is a mechanism for collecting, arranging and collecting book information for people to read and reference, in the library, except most books, the study desk is the study desk, the study desk is at the same height at present, the study desk is used for different student heights based on the relative simplicity of manufacture and the requirement of integral aesthetic feeling of use occasions, and the study desk is required to be specifically folded for study.

At present, folding desk can't change the specification size of desk according to user's height, receives the influence to user's eyesight and skeleton, to the desk that uses less at age, under the too much condition of books, the desk surface storage area is not enough, occupies a large amount of area spaces in library's inside easily, and more books of inconvenient user are put.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a foldable desk for a library, which has the advantages of saving the floor space area of the desk, facilitating book placement and the like, and solves the problem that the vision and bones of a user are affected because the specification and size of the desk cannot be changed according to the height of the user.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a collapsible desk in library, includes the desk body, the bottom slidable mounting of the desk body has movable table leg, and desk body upper surface movable mounting has a hinge apron, the left and right sides of hinge apron and the inside slidable mounting at the desk body have the subplate, the junction of subplate and desk body is provided with the metal block group, the inside and the below at the hinge apron of department of the middle of the desk body is provided with the vertical bookshelf.

Preferably, the top swing joint of standing the bookshelf has the connecting rod, and stands the bottom front surface movable mounting of bookshelf and have the arc pole, the top movable mounting of connecting rod is in the inside of the desk body, the top movable mounting of arc pole is at the rear surface of toothed disc, the surface toothing of toothed disc has the toothed plate frame, the outside at the expansion plate is cup jointed to the toothed plate frame, the laminating of the outside upper surface of expansion plate has the swinging arms.

Preferably, the expansion plate sets up the top at the activity table leg, swinging arms and activity table leg correspond the setting from top to bottom, the book stand uses the center of hinge apron to be accurate the bilateral symmetry setting, the outside of rack is provided with the lug corresponding with the swinging arms, when moving leg rebound to the top, after the activity table leg extrudees the swinging arms, the inner oppression rack back downstream of swinging arms, the rack meshing with the toothed disc at the downward in-process of expansion plate surface, makes the curved bar on toothed disc surface rotate, drives the book stand when the curved bar rotates, under the book stand top connecting rod effect to rotate gradually and push away the hinge apron to the top.

Preferably, the laminating of the top of activity table leg has the joint seat, the upper surface swing joint of joint seat has oblique pull rod, and the outside surface movable mounting of joint seat has the slider, the top movable mounting of oblique pull rod is in the inside of the desk body, the slider cup joints the outside of well through-rod, and the inside of slider is provided with magnet, the top of magnet and the top of well through-rod are provided with corresponding coil.

Preferably, the magnetic field magnetic pole that the coil below produced is opposite with the magnetic pole of opposite face magnet, electric connection between coil and the metal block group, the spring has been taken care of to the surface cover of well logical pole, well logical pole and activity table leg are for controlling parallel arrangement, if user's height is less, come to extrude the subplate by oneself and remove at the internal portion of desk according to user's height, switch on coil internal current after the metal block montage until, guarantee the magnetic field magnetic pole that the coil produced and promote magnet, guarantee the slider and lead to the pole downstream in well, the slider drives oblique pull rod oppression joint seat swing when joint seat removes, makes joint seat and activity table leg break away from the back, the desk body downstream to make holistic desk specification change.

Preferably, the clamping seat is of an L-shaped structure, the clamping seat and the movable table legs are arranged correspondingly, a spring column is arranged at the joint of the movable table legs and the desk body, and the diagonal draw bars are obliquely arranged based on the inner part of the desk body.

(III) advantageous effects

Compared with the prior art, the invention provides a foldable desk for a library, which has the following beneficial effects:

1. this collapsible desk in library, come to extrude the subplate by oneself at the internal portion removal of desk through the height according to the user, switch on the inside electric current of coil after the metal block montage, guarantee the magnetic field magnetic pole that the coil produced and promote magnet, guarantee the slider and lead to the pole downstream in, the slider drives oblique pull rod oppression joint seat swing when joint seat removes, make joint seat and activity table leg break away from the back, the desk body downstream, thereby make holistic desk specification change under the folding effect, whole specification size that can change the desk according to the user's height, convenient to use person's reading custom, protect eyesight.

2. This collapsible desk in library, when desk specification changes the minimum, the subplate is folded completely inside the desk body, the not enough use in space on desk body surface, this moment when activity table leg rebound to when topmost, activity table leg extrusion swinging arms back, the inner oppression pinion rack back downstream of swinging arms, the pinion rack meshes with the toothed disc at the flexible plate surface in-process down, make the arc pole on toothed disc surface rotate, drive when the arc pole rotates and found the bookshelf, under the effect of book shelf top connecting rod, thereby rotate gradually and open hinge cover board top to the top, make and found the bookshelf present the surface at the desk body completely, when having saved the desk occupation of land space area in the library, more books of convenient to use are put.

Drawings

FIG. 1 is a schematic front view of a desk body according to the present invention;

FIG. 2 is a schematic view of the internal structure of the desk body according to the present invention;

fig. 3 is a schematic structural view of a joint of the gear plate and the toothed plate frame of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3 according to the present invention.

Wherein: 1. a desk body; 2. a movable table leg; 3. a hinge cover plate; 4. a sub-board; 5. a group of metal blocks; 6. erecting a bookshelf; 7. a connecting rod; 8. an arcuate bar; 9. a gear plate; 10. a rack frame; 11. a retractable plate; 12. a swing lever; 13. a clamping seat; 14. a diagonal member; 15. a slider; 16. a middle through rod; 17. a coil; 18. and a magnet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a foldable desk for a library comprises a desk body 1, movable desk legs 2 are slidably mounted at the bottom of the desk body 1, a hinge cover plate 3 is movably mounted on the upper surface of the desk body 1, auxiliary plates 4 are slidably mounted on the left side and the right side of the hinge cover plate 3 and inside the desk body 1, a metal block group 5 is arranged at the joint of the auxiliary plates 4 and the desk body 1, a vertical shelf 6 is arranged inside the middle of the desk body 1 and below the hinge cover plate 3, the vertical shelves 6 are symmetrically arranged in the left-right direction with the center of the hinge cover plate 3 as the standard, a connecting rod 7 is movably connected to the top end of the vertical shelf 6, an arc-shaped rod 8 is movably mounted on the front surface of the bottom end of the vertical shelf 6, the top end of the connecting rod 7 is movably mounted inside the desk body 1, the top end of the arc-shaped rod 8 is movably mounted on the rear surface of a gear plate 9, and a rack 10 is engaged with the outer surface of the gear plate 9, rack 10 cup joints the outside at expansion plate 11, the laminating of expansion plate 11's outside upper surface has swinging arms 12, rack 10's the outside is provided with the lug corresponding with swinging arms 12, expansion plate 11 sets up the top at activity table leg 2, swinging arms 12 and activity table leg 2 are the corresponding setting from top to bottom, when upwards moving to the top through activity table leg 2, activity table leg 2 extrudes behind swinging arms 12, downwards movement behind swing arms 12's the inner oppression rack 10, rack 10 meshes with toothed disc 9 at the decurrent in-process in expansion plate 11 surface, make toothed disc 9 surperficial arc pole 8 rotate, drive book stand 6 when arc pole 8 rotates, under 6 top connecting rods 7 effects of book stand, thereby rotate gradually to the top and push up hinge cover plate 3.

The top end of the movable table leg 2 is attached with a clamping seat 13, the upper surface of the clamping seat 13 is movably connected with an inclined pull rod 14, the clamping seat 13 is of an L-shaped structure, the clamping seat 13 and the movable table leg 2 are arranged correspondingly, a spring column is arranged at the joint of the movable table leg 2 and the desk body 1, the inclined pull rod 14 is obliquely arranged based on the interior of the desk body 1, a slide block 15 is movably arranged on the outer side surface of the clamping seat 13, the top end of the inclined pull rod 14 is movably arranged in the desk body 1, the slide block 15 is sleeved outside the through rod 16, a magnet 18 is arranged inside the slide block 15, a corresponding coil 17 is arranged above the magnet 18 and at the top end of the through rod 16, the magnetic pole of a magnetic field generated below the coil 17 is opposite to the magnetic pole of the magnet 18 opposite to the magnetic pole of the opposite side, the coil 17 is electrically connected with the metal block group 5, a spring is sleeved on the outer surface of the through rod 16, the through rod 16 and the movable table leg 2 are arranged in parallel left and right, if the user's height is less, come to extrude by oneself subplate 4 and remove in desk body 1 according to user's height, switch on coil 17 internal current after the metal block group 5 contacts, guarantee that the magnetic field magnetic pole that coil 17 produced promotes magnet 18, guarantee slider 15 and lead to 16 downstream in, slider 15 drives draw diagonal member 14 oppression joint seat 13 swing when joint seat 13 removes, make joint seat 13 and activity table leg 2 break away from the back, desk body 1 moves down to make holistic desk specification change.

When the desk is used, if the height of a user is small, the auxiliary plate 4 is automatically squeezed to move in the desk body 1 according to the height of the user until the metal block group 5 is contacted with the inner current of the coil 17, the magnetic field generated by the coil 17 pushes the magnet 18, the sliding block 15 is ensured to move downwards in the through rod 16, the sliding block 15 drives the clamping seat 13 to move, the inclined pull rod 14 presses the clamping seat 13 to swing, the clamping seat 13 cannot continuously support the desk body 1 after being separated from the movable desk legs 2, the desk body 1 moves downwards, the specification of the whole desk is changed under the folding action, the specification of the whole desk can be changed according to the height of the user, the reading habit of the user is facilitated, the eyesight is protected, when the specification of the desk is changed to the minimum, the auxiliary plate 4 is completely folded in the desk body 1, the space on the surface of the desk body 1 is not enough to be used, when the movable desk legs 2 move upwards to the top, after the movable table legs 2 extrude the oscillating rod 12, the inner of the oscillating rod 12 oppresses the rack of teeth 10 after and moves down, the rack of teeth 10 meshes with toothed disc 9 at the 11 decurrent in-process in surface of expansion plate, make the curved bar 8 on toothed disc 9 surface rotate, drive the vertical bookshelf 6 when the curved bar 8 rotates, under the effect of 6 top connecting rods 7 of vertical bookshelf, thereby rotate gradually and open hinge cover plate 3 to the top, make vertical bookshelf 6 present the surface at the desk body 1 completely, when having saved the desk occupation of land space area in the library, more books of the person of facilitating the use are put.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.