CN213282004U

CN213282004U - Angle-adjustable bookshelf

Info

Publication number: CN213282004U
Application number: CN202021439733.2U
Authority: CN
Inventors: 蔡松; 袁颖; 朱海宽; 蔡十华
Original assignee: Nanchang University College Of Science And Technology
Current assignee: Nanchang University College Of Science And Technology
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-05-28
Anticipated expiration: 2030-07-21

Abstract

An angle-adjustable bookshelf comprises a book rest plate, a bottom plate, a baffle, a first baffle, a second baffle, a first hinge, a second hinge, a speed reduction motor, a first gear and a second gear, wherein the baffle is connected with the book rest plate through the first hinge, and the book rest plate is connected with the bottom plate through the second hinge; a lithium battery, a battery charging interface, a power indicator lamp and a three-gear toggle switch are embedded in the bottom plate; the speed reducing motor is arranged on the bottom plate, the first gear is sleeved on an output shaft of the speed reducing motor, the second gear is sleeved on a central shaft of the second hinge, and the first gear is meshed with the second gear; an avoidance groove is formed in the book leaning plate, and when the book leaning plate and the bottom plate are combined together, the speed reduction motor enters the avoidance groove; the first stop block and the second stop block are arranged on the baffle. The bookshelf with the adjustable angle can adjust the angle of the bookshelf.

Description

Angle-adjustable bookshelf

Technical Field

The utility model relates to a bookshelf technical field, concretely relates to bookshelf with adjustable angle.

Background

The quality education provides larger learning space for students. Wherein, the extensive extracurricular reading becomes the indispensable class of the student. The reading outside class can not only widen the vision of students, increase knowledge and cultivate good self-learning ability and reading ability, but also further consolidate various knowledge learned by students in class, and is helpful for forming good moral character. However, students are easy to feel tired when keeping the same posture for a long time, and poor reading angle also easily causes the problem of stiff spine of the students, so that a reading support with simple structure and flexibly adjustable supporting angle becomes a practical need.

In the prior art, referring to the "foldable reading rack" described in the chinese patent (patent application No. 201820296348.3), the invention changes the angle of the reading rack by changing the position of the supporting rod connected with the book rest on the lower supporting plate, so that the angle of the reading rack is adjustable, but the inevitable disadvantages are: (1) the number of the grooves of the lower supporting plate is limited, and a user can only adjust the limited number of angles and cannot flexibly adjust the angles; (2) the book-rest plate of the bookshelf lacks a book fixer, a reader needs to manually fix the book-rest plate, and the using effect is influenced when the reader reads books for a long time.

In the prior art, referring to the 'easy-to-use reading rack' described in the Chinese patent (patent application number: 201620685317.8), the invention changes the angle of the book supporting plate by changing the position of the supporting rod in the clamping groove, but the inevitable disadvantages are that: (1) the supporting rod belongs to a sight blind area in the adjusting process, and a reader cannot quickly and accurately adjust the angle; (2) the number of the clamping grooves is limited, and the angle adjustable range of the reading rack is narrow.

Disclosure of Invention

The utility model provides a bookshelf with adjustable angle solves the problem that exists among the prior art to a certain extent at least.

The utility model provides a bookshelf with adjustable angle, which comprises a book rest plate, a bottom plate, a baffle, a first stop block, a second stop block, a first hinge, a second hinge, a gear motor, a first gear and a second gear, wherein the baffle is connected with the book rest plate through the first hinge, and the book rest plate is connected with the bottom plate through the second hinge; a lithium battery, a battery charging interface, a power indicator lamp and a three-gear toggle switch are embedded in the bottom plate; the speed reducing motor is arranged on the bottom plate, the first gear is sleeved on an output shaft of the speed reducing motor, the second gear is sleeved on a central shaft of the second hinge, and the first gear is meshed with the second gear; an avoidance groove is formed in the book leaning plate, and when the book leaning plate and the bottom plate are combined together, the speed reduction motor enters the avoidance groove; the first stop block and the second stop block are arranged on the baffle.

Further, the lithium battery is electrically connected with the battery charging interface. The battery charging interface can be connected with an external power supply and is used for charging the lithium battery.

Furthermore, the three-gear toggle switch is electrically connected with the power indicator lamp, the lithium battery and the speed reduction motor. The power indicator lamp is used for indicating the power supply state of the angle-adjustable bookshelf.

Furthermore, the first stop block and the second stop block are respectively hinged with the baffle.

Further, the book rest comprises an angle sensor, the angle sensor is used for detecting the size of an included angle between the book rest plate and the bottom plate, and the angle sensor is electrically connected with the speed reducing motor. When the detected angle is larger than a threshold value (for example, 150 degrees), the speed reducing motor is controlled to stop rotating, so that the book rest board does not continuously open.

The utility model discloses a theory of operation does: (1) the lithium battery supplies power to the bookshelf with the adjustable angle, the lithium battery is electrically connected with the battery charging interface, and an external power supply can charge the lithium battery; (2) the three-gear toggle switch is electrically connected with the power indicator lamp, the lithium battery and the speed reducing motor and is provided with three gears; (3) when the third-gear toggle switch is toggled upwards, the lithium battery supplies power to the power indicator lamp and the speed reducing motor, the power indicator lamp is on, the speed reducing motor rotates forwards, the second hinge rotates forwards due to the fact that the first gear is meshed with the second gear which is sleeved on the central shaft of the second hinge, and the included angle between the book leaning plate and the bottom plate is increased; (4) when the third-gear toggle switch is toggled downwards, the lithium battery supplies power to the power indicator lamp and the speed reducing motor, the power indicator lamp is on, the speed reducing motor rotates reversely, and the second hinge rotates reversely because the first gear is meshed with the second gear which is sleeved on the central shaft of the second hinge, so that the included angle between the book leaning plate and the bottom plate is reduced; (5) when the three-gear toggle switch is shifted to the middle gear, the lithium battery does not supply power to the power indicator lamp and the speed reducing motor, the power indicator lamp is turned off, because of the existence of the multi-stage speed reducing gears and the static friction force in the speed reducing motor, the included angle between the book leaning plate and the bottom plate is kept unchanged, and the size of the included angle between the book leaning plate and the bottom plate can be changed only when a larger external rotating torque acts on the book leaning plate and the bottom plate.

The utility model has the advantages that: (1) the bottom plate plays a supporting role, the book plate, the baffle, the first stop block and the second stop block are used for fixing the book, and the bookshelf is simple in integral structure and low in cost; (2) the angle of the bookshelf can be quickly and accurately adjusted through the three-gear toggle switch arranged on the bottom plate, the angle adjusting range is wide, and the adjustment is convenient; (3) when the three-gear toggle switch is toggled up or down, the speed reducing motor rotates to drive the book leaning plate to rotate, electric energy loss exists at the moment, when the three-gear toggle switch is in a middle gear, the lithium battery does not supply power to the power indicator lamp and the speed reducing motor, an included angle between the book leaning plate and the bottom plate can be maintained unchanged only by utilizing multi-stage speed reducing gears and static friction force in the speed reducing motor, the bookshelf does not have electric energy loss at the moment, the average power consumption of the whole bookshelf is very low, and the bookshelf is energy-saving and environment-friendly.

Drawings

Fig. 1 is a schematic structural view of the book stand with adjustable angle in the closed state of the present invention.

Fig. 2 is a schematic structural view of the book stand with adjustable angle of the present invention in an open state.

Fig. 3 is a schematic view of the connection between the gear motor and the second hinge in the angle-adjustable bookshelf of the present invention.

Fig. 4 is a schematic diagram of a control circuit in the angle-adjustable bookshelf of the present invention.

The main elements in the figures are symbolically illustrated: 1-book rest, 2-bottom plate, 3-lithium battery, 4-battery charging interface, 5-power indicator, 6-three-gear toggle switch, 7-baffle, 8-first stop block, 9-second stop block, 10-first hinge, 11-second hinge, 12-avoidance groove, 13-speed reducing motor, 14-first gear and 15-second gear.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-3, the utility model discloses a bookshelf with adjustable angle, including by book board 1, bottom plate 2, baffle 7, first dog 8, second dog 9, first hinge 10, second hinge 11, gear motor 13, first gear 14 and second gear 15. The baffle 7 is connected with the book leaning plate 1 through a first hinge 10, and the book leaning plate 1 is connected with the bottom plate 2 through a second hinge 11. The bottom plate 2 is provided with a lithium battery 3, a battery charging interface 4, a power indicator lamp 5 and a three-gear toggle switch 6 in an embedded mode. The gear motor 13 is installed on the bottom plate 2, a first gear 14 is sleeved on an output shaft of the gear motor 13, the first gear 14 is meshed with a second gear 15, and the second gear 15 is sleeved on a central shaft of the second hinge 11. The book leaning plate 1 is also provided with an avoiding groove 12, and when the book leaning plate 1 and the bottom plate 2 are combined together, the speed reducing motor 13 enters the avoiding groove 12. The first stopper 8 and the second stopper 9 are respectively located on the sides of the free end (opposite to the end hinged to the book rest board 1) of the flap, and the first stopper 8 and the second stopper 9 are respectively hinged to the flap 7.

Wherein, lithium cell 3 and battery charge interface 4 electricity and connect, and external power source can be connected to battery charge interface 4 for charge for lithium cell 3.

The third-gear toggle switch 6 is electrically connected with the power indicator lamp 5, the lithium battery 3 and the speed reducing motor 13. The power indicator lamp 5 is used for indicating the power supply state of the angle-adjustable bookshelf. The circuit principle among the three-gear toggle switch 6, the power indicator Lamp 5, the lithium Battery 3 and the speed reducing Motor 13 is shown in fig. 4, wherein Battery represents the lithium Battery, SS23D23 represents the three-gear toggle switch, Lamp represents the power indicator Lamp, and Motor represents the speed reducing Motor.

When in use, the bottom plate 2 is placed on a table top, a book is placed on the book leaning plate 1, and the bottom of the book is propped against the baffle 7; after the pages are turned, the first stop block 8 and the second stop block 9 can be rotated to be perpendicular to the baffle 7, so that the turned pages can be pressed, and a reader does not need to manually fix the book. When the angle of books needs to be adjusted, the three-gear toggle switch 6 controls the speed reduction motor 13 to rotate forwards or backwards, the first gear 14 and the second gear 15 drive the second hinge 11 to rotate, so that the book leaning plate 1 rotates relative to the base plate 2, the inclination angle of the book leaning plate 1 is adjusted, and the books move along with the book leaning plate 1 to adjust the angle.

The above-mentioned embodiments are only to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.

Claims

1. An angle-adjustable bookshelf comprises a book rest plate, a bottom plate, a baffle, a first baffle block, a second baffle block, a first hinge, a second hinge, a speed reducing motor, a first gear and a second gear, wherein the baffle is connected with the book rest plate through the first hinge, and the book rest plate is connected with the bottom plate through the second hinge; a lithium battery, a battery charging interface, a power indicator lamp and a three-gear toggle switch are embedded in the bottom plate; the speed reducing motor is arranged on the bottom plate, the first gear is sleeved on an output shaft of the speed reducing motor, the second gear is sleeved on a central shaft of the second hinge, and the first gear is meshed with the second gear; an avoidance groove is formed in the book leaning plate, and when the book leaning plate and the bottom plate are combined together, the speed reduction motor enters the avoidance groove; the first stop block and the second stop block are arranged on the baffle.

2. The angle-adjustable bookrack according to claim 1, wherein: the lithium battery is electrically connected with the battery charging interface.

3. The angle-adjustable bookrack according to claim 1, wherein: and the three-gear toggle switch is electrically connected with the power indicator lamp, the lithium battery and the speed reduction motor.

4. The angle-adjustable bookrack according to claim 1, wherein: the first stop block and the second stop block are hinged to the baffle respectively.

5. An angularly adjustable bookrack according to any one of claims 1 to 4 in which: the angle sensor is used for detecting the size of an included angle between the book leaning plate and the bottom plate, and the angle sensor is electrically connected with the speed reducing motor.