CN209644268U - An automatic card position limit reading and writing board and reading and writing platform - Google Patents

Abstract

The utility model provides a kind of automatic detent limit read-write board and reading and writing platform, and the automatic detent limit read-write board includes that panel, bracket and the retractable support plate comprising limit component, the panel are connect with holder pivots；One end of the retractable support plate is connect with holder pivots, and the other end of the retractable support plate and the back of panel or side are rotatablely connected.It using the technical solution of the utility model, is designed by special structure, realizes automatic detent limit, flexible, folding and folding and unfolding are very convenient and slim, take up little area, easy to carry；As support panel, provide for being engaging in some gradient automatically facilitates function；What be can be convenient is used in combination with various workbenches, desk, desk, computer desk etc., and the sitting posture for improving people sits state, protects backbone and healthy with eye；Structure is simple, at low cost.

Description

An automatic card position limit reading and writing board and reading and writing platform

technical field

The utility model relates to a read-write board, in particular to an automatic card position limiting read-write board and a read-write platform.

Background technique

Traditional reading and writing platforms are generally in the form of ordinary desktops and teas, which are not suitable for users to write, read, draw, and type for a long time on them. However, if humans make the desktop into a slope, it is completely inconvenient to place things. Therefore, the vast majority of people have been forced to carry out the above-mentioned activities at their desks in desperation.

Some angle-adjustable read-write boards and read-write racks that have appeared on the market in recent years have simple and backward structures. Users need to manually lock or fix supports behind the panels, which is extremely inconvenient to use. Instead of an external whole adjustable angle study desk, it is heavy, occupies a large area, is inflexible to place and use, and is also expensive. It is not convenient to use in conjunction with the desks of primary and middle school students, and its use range is narrow.

Utility model content

Aiming at the above technical problems, the utility model discloses an automatic card position limiting reading and writing board and a reading and writing platform, which realizes automatic card position limiting, and at the same time is very slim, and can be flexibly combined with various platforms, desks, etc. use.

To this end, the technical scheme of the utility model is:

An automatic clamping position limiting reading and writing board, which includes a panel, a bracket and a telescopic support plate containing a limit member, the panel is rotatably connected to the bracket; one end of the telescopic support plate is rotatably connected to the bracket, and the telescopic support The other end of the plate is pivotally connected to the back or side of the panel.

With this technical solution, when the panel is lifted, the telescopic support plate is stretched out and fixed by the limit member to realize the automatic locking function, and the user does not need to manually lock or lock any support behind the panel. When closing the panel, you only need to lift the panel up slightly, and then lower it to release the card position, and then you can put it all the way to the bottom and return to the horizontal state. It is easy to use, simple in structure, can be made very slim, flexible and convenient.

As a further improvement of the utility model, the telescopic support plate includes a support plate and a support plate base; the support plate is movably connected with the support plate base; the support plate is rotationally connected with the back or side of the panel, and the The base of the support plate is connected to the bracket in rotation; after the support plate is stretched out, the base of the support plate is connected to the support plate through a limiting member. Further, the support plate is slidably connected with the base of the support plate. With this technical solution, lift the panel, drive the support plate to slide relative to the base of the support plate, protrude from the base of the support plate, limit the position of the limit member, and stop sliding between the support plate and the base of the support plate, so that the support plate Play the role of supporting the panel, so that the panel and the bracket form a certain angle, which is convenient for users to use.

As a further improvement of the utility model, the support plate base is provided with a slideway, the support plate cooperates with the slideway, and the support plate is slidingly connected with the support plate base through the slideway;

The limiting member includes a clamping piece and a matching piece, the clamping piece is arranged on or in the base of the support plate, and the fitting piece is arranged at the lower part of the support plate.

As a further improvement of the utility model, the clamping part is a buckle, and the buckle is rotatably connected to the base of the support plate; the fitting part is a slot.

As a further improvement of the utility model, the middle part of the buckle is rotatably connected with the base of the support plate through a rotating shaft, and the two ends of the buckle are provided with notches; The lower part of the slot is provided with an impact angle opposite to the notch of the buckle. Further, the notch is a V-shaped notch. The clamping position is located on the stroke of the buckle and within the range of rotation of the buckle. With this technical solution, when the panel is lifted, the support plate extends out of the support plate base, and when the buckle of the support plate base matches the slot of the support plate, the support plate is locked, and the panel is also in the open position at this time. state, fixed at a certain angle with the bracket. Then lift up the panel to disengage the buckle of the support plate base from the slot of the support plate, then lower the panel, at this time the buckle and the slot are disengaged, continue to lower the panel, the support plate is folded into the support plate base, Thereby, the panel and the support are closed together, and shrinkage is realized.

Further, the distance from the top of the locking position to the rotating shaft is smaller than the distance from the top of the V-shaped notch at either end of the buckle to the rotating shaft.

As a further improvement of the present invention, when the support plate is extended so that the notch of the buckle contacts the impact angle, the apex of the impact angle contacts the side of the notch of the buckle.

The apex of the impact angle is located outside a circle with the rotation axis of the buckle as the center and the apex of the notch of the buckle as the radius.

As a further improvement of the utility model, the support plate is provided with a limiting groove, the buckle is located in the limiting groove, the width of the limiting groove is larger than the width of the buckle, and the limiting groove communicates with the locking groove.

As a further improvement of the utility model, the support plate is connected to the base of the support plate through a damped pneumatic support rod.

As a further improvement of the utility model, a movable toggle is provided inside the panel, and when the panel and the support are closed, the toggle is moved to make it contact with the toggle. By adopting this technical solution, when the panel is folded, the telescopic support plate can be fixed, which is convenient for carrying. Further, when the panel is folded, the bracket is embedded in the back of the panel.

As a further improvement of the utility model, a foldable movable pallet is provided at the lower part of the panel. With this technical solution, when the panel is lifted, the movable small shelf can be opened to facilitate the placement of stationery.

The utility model also discloses a reading and writing platform, which includes a support frame and a writing plane, and the writing plane is provided with the automatic card position limiting reading and writing board as described in any one of the above items. When the panel of the automatic card position limit reading and writing board is folded, the panel and the writing plane are in the same plane; when the panel is lifted, the panel and the writing plane form an obtuse angle. Further, the bracket is connected with the writing plane. The reading and writing platform can be a student's desk or a design workbench used by designers.

The automatic card position limit read-write board of the utility model can be used as an independent read-write board, a desk board for a desk, and a base for a notebook.

Compared with the prior art, the beneficial effects of the utility model are:

Adopting the technical scheme of the utility model, through its special structural design, it realizes the automatic clamping position limit, and it is very convenient to stretch, fold and retract, and it is slim, occupies a small area, and is easy to carry; when used as a support panel, it can provide The convenient function of automatically locking on a certain slope; it can be conveniently used in combination with various work platforms and desks to improve the sitting posture of primary and middle school students, protect the spine and eye health; the structure is simple and the cost is low.

Description of drawings

Fig. 1 is a schematic diagram of the structure of an automatic card position limiting read-write board in Embodiment 1 of the present invention when it is opened.

Fig. 2 is a schematic diagram of the side view structure of an automatic card position limiting read-write board in Embodiment 1 of the present invention when it is opened.

Fig. 3 is another schematic diagram of the structure of an automatic card position limiting read-write board in Embodiment 1 of the present invention when it is opened.

Fig. 4 is a side view of an automatic card position limiting read-write board in Embodiment 1 of the utility model when it is folded.

Fig. 5 is a schematic structural diagram of the retracted state of the telescopic support plate of an automatic card position limiting reading and writing board according to Embodiment 1 of the present utility model.

Fig. 6 is a structural schematic diagram of the extended state of the telescopic support plate of the automatic card positioning limit reading and writing board according to the first embodiment of the present invention.

Fig. 7 is a structural schematic diagram of a toggle button of an automatic card position limiting read-write board according to Embodiment 1 of the present utility model.

Fig. 8 is a schematic diagram of an exploded structure of a desk in Embodiment 2 of the present invention.

Fig. 9 is a schematic structural view of a desk in Embodiment 2 of the present invention.

Fig. 10 is a structural schematic diagram of the opening of the automatic card position limiting reading and writing board of a desk according to the second embodiment of the present invention.

Fig. 11 is a schematic structural view of a desk according to Embodiment 3 of the present invention.

Fig. 12 is a structural schematic diagram of the opening of the automatic card position limiting reading and writing board of a desk according to Embodiment 3 of the present invention.

Reference signs include: 1-panel, 2-bracket, 3-telescopic support plate, 31-support plate, 32-support plate base, 33-slide, 34-buckle, 35-card slot, 36-limit Slot, 37-notch, 38-card position, 39-impact angle, 4-toggle button, 5-movable pallet, 6-support frame, 7-desktop, 8-desktop.

Detailed ways

Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in further detail.

Example 1

As shown in Figures 1 to 7, an automatic clamping and limiting reading and writing board includes a panel 1, a bracket 2 and a telescopic support plate 3 containing a limiting member, and one side of the panel 1 and the bracket 2 passes through a rotating shaft Rotational connection; the telescopic support plate 3 includes a support plate 31 and a support plate base 32 . The support plate base 32 is rotatably connected to the other side of the bracket 2 through a rotating shaft, and the support plate 31 is rotatably connected to the back of the panel 1 through a rotating shaft. The support plate base 32 is provided with a slideway 33 , the support plate 31 extends into the slideway 33 , and the support plate 31 is slidably connected with the support plate base 32 through the slideway 33 . After the support plate 31 is stretched out, the support plate base 32 is connected with the support plate 31 through a limiting member.

Further, the limiting member includes a clamping piece and a matching piece, the clamping piece is arranged in the slideway 33 of the support plate base 32 , and the fitting piece is set at the lower part of the support plate 31 . In this embodiment, the clamping member is a buckle 34 , and the buckle 34 is rotatably connected to the support plate base 32 . The matching part is a card slot 35 . The support plate 31 is provided with a limiting groove 36, the buckle 34 is located in the limiting groove 36, the width of the limiting groove 36 is greater than the width of the buckle 34, the limiting groove 36 communicates with the locking groove 35, The width of the engaging slot 35 is greater than that of the limiting slot 36 . That is, the buckle 34 relatively moves to the locking slot 35 in the limiting slot 36 . The middle part of the buckle 34 is rotatably connected to the support plate base 32 through a rotating shaft, and two ends of the buckle 34 are symmetrically provided with V-shaped notches 37 . One side of the card slot 35 is provided with a protruding card position 38, and the lower part of the card slot 35 is provided with a protruding bump angle 39 opposite to the notch 37 of the buckle 34, so as to hit the buckle 34 to make it The role of rotation. The clamping position 38 is located on the stroke of the buckle 34 and within the range of rotation of the buckle 34, that is, the distance from the top of the clamping position 38 to the rotating shaft is smaller than the distance from the top of the V-shaped notch 37 at either end of the buckle 34 to the rotating shaft the distance. The apex of the impact angle 39 is located outside the circle with the rotation axis of the buckle 34 as the center and the apex of the notch 37 of the buckle 34 as the radius. When the support plate 31 protrudes so that the notch 37 of the buckle 34 touches the impact angle 39 , the apex of the impact angle 39 contacts the side of the notch 37 of the buckle 34 . Under normal circumstances, the length direction of the buckle 34 is the same as the extension direction of the limiting groove 36, the notches 37 on both sides are located in the length direction, and the notches 37 are located in the vertical direction, so that when the notch 37 of the buckle 34 hits the impact angle 39 , the impact angle 39 makes the buckle 34 rotate, so that the buckle 34 is located below the locking position 38, when the buckle 34 touches the locking position 38, it is blocked by the locking position 38, and plays a position-limiting role.

Further, the panel 1 is provided with a movable toggle 4. When the panel 1 and the bracket 2 are folded, the toggle 4 is moved to make it contact with the bracket 2. When the panel 1 needs to be opened, the toggle 4 is turned first. , so that it does not contact with the support 2, the panel 1 and the support 2 can rotate, so that the telescopic support plate 3 can be opened. In this way, when the panel 1 is folded, the relative positions of the panel 1 and the bracket 2 can be fixed, so that the panel 1 and the bracket 2 do not rotate, thereby fixing the telescopic support plate 3 and being easy to carry. Further, the back of the panel 1 is provided with a groove for accommodating the bracket 2 , and the bracket 2 is embedded into the back of the panel 1 when folded. Further, the lower part of the panel 1 is provided with a foldable movable pallet 5 . By adopting this technical scheme, when the panel 1 is lifted, the movable small support can be opened to facilitate the placement of stationery.

With this technical solution, when the panel 1 is lifted, the panel 1 rotates relative to the support 2, so that the support plate 31 connected to the panel 1 protrudes from the support plate base 32, and the support plate base 32 also rotates relative to the support 2; The buckle 34 moves relative to the limit groove 36. When the buckle 34 reaches the slot 35, the buckle 34 hits the impact angle 39, so that the buckle 34 rotates, and the support plate 31 moves back relative to the support plate base 32, so that the rotation The notch 37 of the rear buckle 34 snaps into the card position 38, thereby realizing the limit. When it is folded up, the panel 1 is lifted up a little, so that the buckle 34 turns in the opposite direction to the original, and returns to or approaches the initial state, that is, the length direction of the buckle 34 is the same as or close to the extending direction of the limiting groove 36 Similarly, in this way, the support plate 31 can be retracted into the support plate base 32 smoothly, so that the panel 1 can be folded.

During the whole process, the support plate 31 is stretched out and fixed by the limiting member to realize the automatic locking function, and the user does not need to manually lock or lock any support behind the panel 1 . When closing the panel 1, it is only necessary to lift the panel 1 upwards slightly, and then lower the panel 1 to release the locking position 38, and then it can be lowered to the lowest level and returned to the horizontal state. It is easy to use, simple in structure, can be made very slim, flexible and convenient.

Example 2

As shown in Figures 8 to 10, a desk includes a support frame 6 and a desktop 7, the desktop 7 is provided with the automatic card position limiting reading and writing board described in Embodiment 1, and the support 2 is connected to the writing desk. flat connection. When the panel 1 of the automatic card position limit reading and writing board is folded, the panel 1 and the desktop 7 are in the same plane; when the panel 1 is lifted, the panel 1 and the desktop 7 form an obtuse angle, which is convenient for reading and writing. The automatic card position limit read-write board of the utility model can be used as an independent read-write board, a desk board for a desk, and a base for a notebook.

Example 3

As shown in Figures 11 to 12, a desk includes a desk top 8, and the desk top 8 is provided with the automatic card position limit reading and writing board described in Embodiment 1, and the automatic card position limit The support 2 of the bit reading and writing board is connected with the office desktop 8. When the panel 1 of the automatic card position limit reading and writing board is folded, the panel 1 and the desk surface 8 are in the same plane; when the panel 1 is lifted, the panel 1 and the desk surface 8 form an obtuse angle, which is convenient for reading and writing.

The specific implementations described above are preferred implementations of the present utility model, and are not intended to limit the specific implementation scope of the present utility model. The scope of the present utility model includes but is not limited to this specific implementation. , The equivalent changes made by the structure are all within the protection scope of the present utility model.

Claims (10)

1. a kind of automatic detent limits read-write board, it is characterised in that: it includes panel, bracket and the flexible branch comprising limit component Fagging, the panel are connect with holder pivots；One end of the retractable support plate is connect with holder pivots, the retractable support plate The other end and panel back or side be rotatablely connected.

2. automatic detent according to claim 1 limits read-write board, it is characterised in that: the retractable support plate includes support Plate and support plate pedestal；The support plate is connect with support plate base runner；The back or side of the support plate and panel turn Dynamic connection, the support plate pedestal are connect with holder pivots；Support plate stretch out after, the support plate pedestal by limit component with Support plate connection.

3. automatic detent according to claim 2 limits read-write board, it is characterised in that: the support plate pedestal, which is equipped with, to be slided Road, the support plate and slideway cooperate, and the support plate is slidably connected by slideway and support plate pedestal；

The limit component includes shackle member and matching piece, and the shackle member is located at support plate pedestal, and the matching piece is located at branch The lower part of fagging.

4. automatic detent according to claim 3 limits read-write board, it is characterised in that: the shackle member is buckle, described Buckle is rotatablely connected with support plate pedestal；The matching piece is card slot.

5. automatic detent according to claim 4 limits read-write board, it is characterised in that: pass through shaft in the middle part of the buckle It is rotatablely connected with support plate pedestal, the both ends of the buckle are equipped with notch；The side of the card slot is equipped with the detent of protrusion, described The lower part of card slot is equipped with the angle of impingement opposite with the notch of buckle.

6. automatic detent according to claim 5 limits read-write board, it is characterised in that: the support plate, which is stretched out, makes buckle When notch contact impact angle, the contact aside of the notch on the vertex and buckle of the angle of impingement.

7. automatic detent according to claim 5 limits read-write board, it is characterised in that: the support plate is equipped with limiting slot, The buckle is located in limiting slot, and the width of the limiting slot is greater than the width of buckle, and the limiting slot is connected to card slot.

8. automatic detent according to claim 1 limits read-write board, it is characterised in that: the support plate and support plate pedestal Pass through damping Pneumatic power support lever connection.

9. automatic detent described in any one limits read-write board according to claim 1 ~ 8, it is characterised in that: set in the panel There is moveable toggle, when panel and bracket gathering, mobile toggle contacts it with bracket.

10. a kind of reading and writing platform, it is characterised in that: it includes support frame and writing plane, and the writing plane is equipped with such as 1 ~ 9 Automatic detent described in meaning one limits read-write board.