CN217090087U

CN217090087U - Foldable and openable writing board

Info

Publication number: CN217090087U
Application number: CN202121329501.6U
Authority: CN
Inventors: 杜斌超
Original assignee: Guangdong Jianfengchao Furniture Technology Co ltd
Current assignee: Guangdong Jianfengchao Furniture Technology Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2022-08-02
Anticipated expiration: 2031-06-15

Abstract

The utility model discloses a foldable and board of opening, including board main part, tray, rotating head, bolt, handrail, the board main part is installed on the tray, and tray and handrail are connected to the rotating head, and the rotating head drives the tray and rotates with the board main part, and the bolt includes spring and round pin axle, and spring and round pin axle are installed on the rotating head, be provided with on the tray with the spacing hole of bolt complex. The utility model has the advantages that: the working space occupied by the writing board when the writing board is opened and folded can be effectively saved, friction and blocking among the writing board mechanisms can be avoided, and the writing board is beneficial to use in production and life.

Description

Foldable and openable writing board

Technical Field

The utility model relates to an office furniture equipment field, especially a board that can fold and open.

Background

In some large conferences and academic seminars, due to limited places, only one stool is generally provided for participants, particularly a conference stool, and due to the fact that no conventional desk equipment is provided, the conference recording is quite inconvenient for the participants.

SUMMERY OF THE UTILITY MODEL

The utility model provides a but folding and the board of opening drives the rotatory folding or opening of tray and board main part through the rotating head, shared working space when can practicing thrift the board effectively and use to can avoid rubbing between the board mechanism, be favorable to using in the production life.

In order to realize the purpose of the utility model, the utility model provides a following technical scheme:

the utility model provides a foldable and board of opening, including the board main part, a tray, the rotating head, the bolt, the handrail, the board main part is installed on the tray, tray and handrail are connected to the rotating head, the tray is along the connection face relative rotation of tray and rotating head, the rotating head is along the connection face relative rotation of rotating head and handrail, the bolt includes spring and round pin axle, spring and round pin axle are installed on the rotating head, be provided with on the tray with the spacing hole of bolt complex, be provided with the inclined plane recess on the spacing hole, the bolt is from this inclined plane recess gets into in the spacing hole.

Preferably, the tray is provided with screw holes, the bottom of the tablet main body is provided with mounting holes, and the tray is mounted at the bottom of the tablet main body in a mode that fixing screws penetrate through the screw holes and the mounting holes to be locked, so that firm mounting between the tray and the tablet main body can be ensured.

Preferably, the both sides of rotating head are provided with first arc recess and second arc recess, be provided with the arch that corresponds with first arc recess on the tray, be provided with the kingpin that corresponds with second arc recess on the handrail, arch and kingpin insert respectively in first arc recess and the second arc recess, when such setting can guarantee that the rotating head is rotatory, kingpin and arch are the back and forth movement in the first arc recess and the second arc recess that correspond, first arc recess and second arc recess provide the route for the back and forth movement of arch and kingpin to the angle of restriction arch and kingpin movement.

Preferably, be provided with first circular gasket on the first arc recess, be provided with the recess the same with first arc recess on the first circular gasket, first circular gasket can provide buffering and shock attenuation for the rotation of rotating head and tray, and the recess can avoid blockking the protruding motion in first arc recess.

Preferably, a second circular gasket is arranged on the second arc-shaped groove, and the second circular gasket can provide buffering and shock absorption for the rotation of the rotating head and the tray.

Preferably, the two ends of the rotating head are provided with the large gaskets and the butterfly-shaped elastic pieces, the rotating head is mounted on the handrail and the tray in a mode that the large gaskets and the butterfly-shaped elastic pieces are tightly pressed by the locking screws, and the large gaskets and the butterfly-shaped elastic pieces can reduce rigid collision between the rotating head and the locking screws and play a role in shock absorption and buffering.

Compared with the prior art, the utility model has the advantages of it is following:

the utility model discloses a rotating head connection tray and handrail, the board main part is installed on the tray, the utility model discloses have three kinds of main operating condition, when need not use the board, the tray drives the vertical folding of board main part beside the handrail, and the bolt is compressed this moment, and the spring contracts, the utility model discloses be in fold condition; when the writing board needs to be used, the writing board main body is vertically taken up, the rotating head can relatively rotate along the connecting surface of the rotating head and the handrail to drive the writing board main body to rotate along the vertical direction, and the rotating head drives the tray and the writing board main body to rotate to a position where the tray and the writing board main body are separated from the limit of the handrail, so that the writing board is in a middle transition state; then, the tray can relatively rotate along the connecting surface of the tray and the rotating head, and the tray rotates anticlockwise along the connecting surface of the tray and the rotating head, so that the writing board main body rotates anticlockwise to a horizontal plane from the original vertical direction, compared with the prior art, the rotating mode directly turns the writing board main body from the original vertical direction to the horizontal direction downwards, people are not easily injured by pounding, the space required by turning is smaller, at the moment, the bolt on the rotating head moves on the connecting surface of the tray, when the writing board moves to the horizontal plane, the bolt enters the limiting hole along the inclined plane groove of the limiting hole for limiting, the spring extends, and the pin shaft is extruded into the limiting hole, the utility model is in a working state, because the inclined plane groove is arranged on the limiting hole, the writing board main body is folded, and the tray rotates clockwise to the vertical plane from the horizontal plane, can only be along the angle opposite direction rotation of spacing hole inclined plane recess, just can take out the bolt from spacing hole, all be difficult to take out the bolt from spacing hole from other directions and angle, rotatory originated direction and angle when such setting has reached the restriction tray folding, because rotatory direction and angle are improper when can avoiding using, looks mutual friction and card are dead between tray and the rotating head, do benefit to the user and use.

Therefore, the utility model provides a but folding and the board of opening can practice thrift the board effectively and open and shared working space when folding, can also avoid rubbing and card between the board mechanism to die, is favorable to using in the production life.

Drawings

Fig. 1 is a schematic view of the split structure of the present invention;

fig. 2 is a schematic structural view of the folded state of the present invention;

FIG. 3 is a schematic diagram of an intermediate transition state according to the present invention;

fig. 4 is a schematic structural view of the working state of the present invention;

fig. 5 is a schematic structural view of the middle tray of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature; further, in the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "secured" are to be construed broadly, and thus, for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Referring to fig. 1-5, fig. 1 is a schematic view of the split structure of the present invention; fig. 2 is a schematic structural view of the folded state of the present invention; FIG. 3 is a schematic diagram of an intermediate transition state according to the present invention; fig. 4 is a schematic structural view of the working state of the present invention; fig. 5 is a schematic structural view of the middle tray of the present invention.

The utility model provides a but folding and board of opening, the part name that each reference numeral corresponds in the picture as follows: the writing board comprises a writing board main body 1, a tray 2, a rotating head 3, a handrail 4, a spring 5, a pin shaft 6, a limiting hole 7, a screw hole 8, a fixing screw 9, a first arc-shaped groove 10, a second arc-shaped groove 11, a protrusion 12, a roller pin 13, a first round gasket 14, a second round gasket 15, a large gasket 16, a butterfly-shaped elastic sheet 17 and a locking screw 18.

The utility model provides a collapsible and board of opening, including board main part 1, tray 2, rotating head 3, the bolt, handrail 4, board main part 1 is installed on

tray

2, 3 connection tray 2 and handrail 4 of rotating head, tray 2 is along the connection face relative rotation of tray 2 and rotating head 3, rotating head 3 is along the connection face relative rotation of rotating head 3 and handrail 4, the bolt includes spring 5 and round pin axle 6, spring 5 and round pin axle 6 are installed on rotating head 3, be provided with on tray 2 with the spacing hole 7 of bolt complex, be provided with the inclined plane recess on the spacing hole 7, the bolt is from this in the spacing hole 7 of inclined plane recess entering.

The tray 2 is provided with the screw holes 8, the bottom of the tablet main body 1 is provided with the mounting holes, and the tray 2 is mounted at the bottom of the tablet main body 1 in a mode that the fixing screws 9 penetrate through the screw holes 8 and are locked with the mounting holes, so that firm mounting between the tray 2 and the tablet main body 1 can be ensured.

The both sides of swivel head 3 are provided with first arc recess 10 and second arc recess 11, be provided with the arch 12 that corresponds with first arc recess 10 on the tray 2, be provided with the kingpin 13 that corresponds with second arc recess 11 on the handrail 4, arch 12 and kingpin 13 insert respectively in first arc recess 10 and second arc recess 11, when swivel head 3 is rotatory can be guaranteed in such setting, kingpin 13 and arch 12 round trip movement in first arc recess 10 and the second arc recess 11 that correspond, first arc recess 10 and second arc recess 11 provide the route for the round trip movement of arch 12 and kingpin 13, and the angle of restriction arch 12 and kingpin 13 motion.

Be provided with first circular gasket 14 on first arc recess 10, be provided with the recess the same with first arc recess 10 on the first circular gasket 14, first circular gasket 14 can provide buffering and shock attenuation for the rotation of rotating head 3 and tray 2, and the recess can avoid blockking the motion of arch 12 in first arc recess 10.

The second arc-shaped groove 11 is provided with a second circular gasket 15, and the second circular gasket 15 can provide buffering and damping for the rotation of the rotary head 3 and the tray 2.

The two ends of the rotating head 3 are provided with the large gaskets 16 and the butterfly-shaped elastic sheets 17, the rotating head 3 is arranged on the handrail 4 and the tray 2 in a mode that the large gaskets 16 and the butterfly-shaped elastic sheets 17 are tightly pressed by the locking screws 18, and the large gaskets 16 and the butterfly-shaped elastic sheets 17 can reduce hard collision between the rotating head 3 and the locking screws 18 and play roles in shock absorption and buffering.

the utility model discloses a rotating head 3 connects tray 2 and handrail 4, and board main part 1 is installed on tray 2, the utility model discloses have three kinds of main operating condition, when need not use the board, tray 2 drives board main part 1 vertical folding by handrail 4, and the bolt is compressed this moment, and spring 5 contracts, the utility model discloses be in fold condition; when the tablet needs to be used, the tablet main body 1 is vertically taken up, the rotating head 3 can relatively rotate along the connecting surface of the rotating head 3 and the handrail 4 to drive the tablet main body 1 to rotate along the vertical direction, and the rotating head 3 drives the tray 2 and the tablet main body 1 to rotate until the tray and the tablet main body 1 are separated from the limit of the handrail 4, so that the utility model is in a middle transition state; then, because the tray 2 can relatively rotate along the connecting surface of the tray 2 and the rotating head 3, the tray 2 rotates along the connecting surface of the tray 2 and the rotating head 3 anticlockwise, so that the writing board main body 1 rotates to the horizontal plane from the original vertical direction anticlockwise, compared with the prior art, the rotating mode directly turns the writing board main body 1 from the original vertical direction to the horizontal direction downwards, people are not easy to be injured by smashing, the space required by turning is safer, the bolt on the rotating head 3 moves on the connecting surface of the tray 2, when the writing board moves to the horizontal plane, the bolt enters the limiting hole 7 along the inclined groove of the limiting hole 7 for limiting, the spring 5 extends, and the pin shaft 6 is extruded into the limiting hole 7, the utility model is in a working state, because the inclined groove is arranged on the limiting hole 7, the writing board main body 1 is folded, with tray 2 from horizontal plane clockwise turning to vertical face, can only be along the angle opposite direction rotation of 7 inclined plane recesses in spacing hole, just can take out the bolt from spacing hole 7, all relatively difficult taking out the bolt from spacing hole 7 from other directions and angle, rotatory initial direction and angle when such setting has reached restriction tray 2 folding, because rotatory direction and angle are improper when can avoiding using, looks mutual friction and card die between tray 2 and the rotating head 3, do benefit to the user and use.

The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the spirit and scope of the invention, and such modifications and enhancements are intended to be within the scope of the invention.

Claims

1. The foldable and openable writing board is characterized by comprising a writing board main body, a tray, a rotating head, a bolt and a handrail, wherein the writing board main body is installed on the tray, the rotating head is connected with the tray and the handrail, the tray rotates relatively along the connecting surface of the tray and the rotating head, the rotating head rotates relatively along the connecting surface of the rotating head and the handrail, the bolt comprises a spring and a pin shaft, the spring and the pin shaft are installed on the rotating head, a limiting hole matched with the bolt is formed in the tray, an inclined plane groove is formed in the limiting hole, and the bolt enters the limiting hole from the inclined plane groove.

2. The foldable and openable tablet of claim 1, wherein the tray is provided with screw holes, the bottom of the tablet body is provided with mounting holes, and the tray is mounted on the bottom of the tablet body by fastening screws through the screw holes and the mounting holes.

3. The foldable and openable tablet of claim 1, wherein the rotary head is provided at both sides thereof with first and second arc-shaped grooves, the tray is provided with a projection corresponding to the first arc-shaped groove, the armrest is provided with a needle roller corresponding to the second arc-shaped groove, and the projection and the needle roller are inserted into the first and second arc-shaped grooves, respectively.

4. A foldable and openable tablet according to claim 3, wherein the first arc-shaped groove is provided with a first circular pad, and the first circular pad is provided with the same groove as the first arc-shaped groove.

5. A foldable and openable tablet according to claim 3, wherein the second arc-shaped groove is provided with a second circular washer.

6. The foldable and openable tablet of claim 1, wherein the rotating head has a large washer and a butterfly spring at both ends, and the rotating head is mounted on the armrest and the tray by pressing the large washer and the butterfly spring with locking screws.