CN212382284U - Teaching book fixing bracket - Google Patents

Abstract

The utility model belongs to the technical field of teaching appliances, in particular to a fixing bracket for teaching books, which comprises a supporting plate and two clamps respectively arranged at the left side edge and the right side edge of the supporting plate for clamping the page edges of the books; the two clamps are symmetrically arranged; the clamp comprises a seat part, a bearing part and a buckling part, wherein the buckling part is of a semi-annular structure, one end of the buckling part is hinged with the seat part, a torsion spring which enables the other end of the buckling part to have a downward pressing trend is distributed at the hinged part, the bearing part is fixed with the seat part, the bearing part is of a plate-shaped structure, the free end of the buckling part is pressed on the upper surface of the bearing part, and the ventral side of the buckling part is opposite to the upper surface of the bearing part; the upper surface of the bearing part and the upper surface of the supporting plate are in the same horizontal plane. The utility model discloses can press from both sides books on the layer board, appear the page when avoiding reading and fold naturally, or because of the problem of the automatic page turning of the page of blowing.

Description

Teaching book fixing bracket

Technical Field

The utility model belongs to the technical field of the teaching aid, especially, relate to a teaching books fixing bracket.

Background

When a thick book is read, the turned pages are naturally folded due to the tension of the book, and particularly, the book is naturally folded when the book is newer and the book is thicker, which brings great inconvenience to a reader. Or when the book is read outdoors, the pages of the book can be automatically turned due to wind, and bad experience is brought to the reader.

The problem of the existing deficiency of a teaching book fixing bracket is urgently needed.

Disclosure of Invention

The utility model aims to solve the technical problem that not enough among the above-mentioned prior art is directed at, provide a teaching books fixing bracket, can press from both sides books on the layer board, appear the page when avoiding reading and fold naturally, or because of the problem of the automatic page turning of the page of blowing.

In order to solve the technical problem, the utility model discloses a technical scheme is: a teaching book fixing bracket comprises a supporting plate and two clamps which are respectively arranged at the left side edge and the right side edge of the supporting plate and used for clamping the page edges of books; the two clamps are symmetrically arranged; the clamp comprises a seat part, a bearing part and a buckling part, wherein the buckling part is of a semi-annular structure, one end of the buckling part is hinged with the seat part, a torsion spring which enables the other end of the buckling part to have a downward pressing trend is distributed at the hinged part, the bearing part is fixed with the seat part, the bearing part is of a plate-shaped structure, the free end of the buckling part is pressed on the upper surface of the bearing part, and the ventral side of the buckling part is opposite to the upper surface of the bearing part; the upper surface of the bearing part and the upper surface of the supporting plate are positioned on the same horizontal plane;

the middle parts of the end surfaces of the left side edge and the right side edge of the supporting plate are respectively provided with a first hole and a second hole, a rack is inserted in the first hole, and a guide rod is inserted in the second hole; the outer end of the rack and the outer end of the guide rod are fixed with the seat part of the clamp;

rotating parts for driving the racks to move are uniformly distributed at the positions, close to the left side edge and the right side edge, of the bottom of the supporting plate; the upper end of the rotating part is of a gear structure, and the gear structure extends into the supporting plate and is meshed with the rack; through the rotation piece, can drive the rack and drive the clip and remove along left and right sides direction.

Above-mentioned teaching books fixing bracket, the recess that supplies the bearing part embedding of clip is all offered to the position department that the layer board upper surface is close to left side edge and right side edge.

Above-mentioned teaching books fixed bolster, the boss that is used for cocking the buckling parts is installed to the dorsal part of the buckling parts of clip.

The teaching book fixing bracket also comprises a bracket for supporting the supporting plate, wherein the bracket comprises a reinforcing rib plate, an angle adjusting mechanism and a base; the reinforcing rib plate is fixed at the bottom of the supporting plate; the angle adjusting mechanism comprises a main upright post vertically fixed on the base, a cross beam fixed at the top of the main upright post, two upright posts fixed at two ends of the cross beam, a linear guide rail vertically fixed on the front side surface of the main upright post, a sliding block capable of moving up and down along the linear guide rail and a connecting rod hinged on the sliding block; the center of the reinforcing rib plate and the center of the angle adjusting mechanism are on the same vertical axis; the upper ends of the two vertical rods are respectively hinged with the middle part of the left side edge and the middle part of the right side edge of the reinforcing rib plate; the upper end of the connecting rod is hinged with the middle part of the front side edge of the reinforcing rib plate;

the front side surface of the linear guide rail is provided with a positioning hole, and the sliding block is provided with a pin which can be inserted into the positioning hole.

Compared with the prior art, the utility model has the following advantage: the utility model discloses an install the clip in layer board both sides, can press from both sides books and establish on the layer board. Through making between clip and the layer board position adjustable, make the utility model discloses can adapt to the books of a plurality of sizes.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

Fig. 1 is a front partial sectional view of the present invention.

Fig. 2 is an enlarged sectional view of a rack portion at a in fig. 1.

Fig. 3 is an enlarged cross-sectional view of the guide bar portion at B in fig. 1.

Fig. 4 is a right side view of fig. 1.

Description of reference numerals:

1-a supporting plate;	2, a clamp;	3, a clamping groove;
			4-a rack;	5, rotating the part;	6, a boss;
7-a reinforcing rib plate;	8, a base;	9-main upright post;
			10-a cross beam;	11-erecting a rod;	12-a linear guide;
13-a slide block;	14-a connecting rod;	15-positioning holes;
			16-pins;	17-a guide rod;
2-1-a seat portion;	2-a carrier;	2-3-buckling part.

Detailed Description

The present invention is explained with reference to fig. 1 to 4.

A teaching book fixing bracket comprises a supporting plate 1 and two clamps 2 which are respectively arranged at the left side edge and the right side edge of the supporting plate 1 and used for clamping the page edges of books; the two clamps 2 are symmetrically arranged; the clamp 2 comprises a seat part 2-1, a bearing part 2-2 and a buckling part 2-3, wherein the buckling part 2-3 is of a semi-annular structure, one end of the buckling part 2-3 is hinged with the seat part 2-1, a torsion spring enabling the other end of the buckling part 2-3 to have a downward pressing trend is arranged at the hinged position, the bearing part 2-2 is fixed with the seat part 2-1, the bearing part 2-2 is of a plate-shaped structure, the free end of the buckling part 2-3 is pressed on the upper surface of the bearing part 2-2, and the ventral side of the buckling part 2-3 is opposite to the upper surface of the bearing part 2-2; the upper surface of the bearing part 2-2 and the upper surface of the supporting plate 1 are in the same horizontal plane.

A vertical clamping groove 3 is arranged between the front lateral edge and the rear lateral edge of the supporting plate 1, and the side wall of the vertical clamping groove 3 is in round angle transition with the upper surface of the supporting plate 1.

The middle parts of the end surfaces of the left side edge and the right side edge of the supporting plate 1 are respectively provided with a first hole and a second hole, the first hole is internally inserted with a rack 4, and the second hole is internally inserted with a guide rod 17; the outer end of the rack 4 and the outer end of the guide rod 17 are fixed with the seat part 2-1 of the clamp 2; rotating pieces 5 for driving the racks 4 to move are uniformly distributed at the positions, close to the left side edge and the right side edge, of the bottom of the supporting plate 1; the upper end of the rotating part 5 is of a gear structure, and the gear structure extends into the supporting plate 1 and is meshed with the rack 4; by rotating the rotating member 5, the rack 4 can be driven to move the clip 2 in the left-right direction.

The positions of the upper surface of the supporting plate 1, which are close to the left side edge and the right side edge, are provided with grooves for embedding the bearing parts 2-2 of the clips 2.

The back side of the buckling part 2-3 of the clip 2 is provided with a boss 6 for turning up the buckling part 2-3.

In the embodiment, the supporting device further comprises a bracket for supporting the supporting plate 1, wherein the bracket comprises a reinforcing rib plate 7, an angle adjusting mechanism and a base 8; the reinforcing rib plate 7 is fixed at the bottom of the supporting plate 1; the angle adjusting mechanism comprises a main upright post 9 vertically fixed on the base 8, a cross beam 10 fixed at the top of the main upright post 9, two upright posts 11 fixed at two ends of the cross beam 10, a linear guide rail 12 vertically fixed on the front side surface of the main upright post 9, a sliding block 13 capable of moving up and down along the linear guide rail 12, and a connecting rod 14 hinged on the sliding block 13; the center of the reinforcing rib plate 7 and the center of the angle adjusting mechanism are on the same vertical axis; the upper ends of the two upright posts 11 are respectively hinged with the middle parts of the left side edge and the right side edge of the reinforcing rib plate 7; the upper end of the connecting rod 14 is hinged with the middle part of the front side edge of the reinforcing rib plate 7; the front side surface of the linear guide rail 12 is provided with a positioning hole 15, and the sliding block 13 is provided with a pin 16 which can be inserted into the positioning hole 15.

The utility model discloses during the in-service use, open books and place on layer board 1, if books are too big, then drive rack 4 through rotatory rotation piece 5 and remove, make clip 2 remove to the direction of keeping away from layer board 1 suitable distance, then place books and open on layer board 1, pull up buckling parts 2-3 through boss 6 and carry out the centre gripping to the edge of books, when considering that in reality when books are too thick, when books turn over to the centre, page edge can constitute a broad lateral part, so make buckling parts 2-3 into half ring spare, can make the space in buckling parts 2-3 satisfy the problem that the broad lateral part was held; the connecting rod 14 is driven by moving the sliding block 13, and the connecting rod 14 is further driven to pull the reinforcing rib plate 7 to rotate, so that the aim of adjusting the inclination angle of the supporting plate 1 is fulfilled.

The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.

Claims (4)

1. Teaching books fixed bolster, its characterized in that: comprises a supporting plate and two clamps which are respectively arranged at the left side edge and the right side edge of the supporting plate and used for clamping the page edges of books; the two clamps are symmetrically arranged; the clamp comprises a seat part, a bearing part and a buckling part, wherein the buckling part is of a semi-annular structure, one end of the buckling part is hinged with the seat part, a torsion spring which enables the other end of the buckling part to have a downward pressing trend is distributed at the hinged part, the bearing part is fixed with the seat part, the bearing part is of a plate-shaped structure, the free end of the buckling part is pressed on the upper surface of the bearing part, and the ventral side of the buckling part is opposite to the upper surface of the bearing part; the upper surface of the bearing part and the upper surface of the supporting plate are positioned on the same horizontal plane;

the middle parts of the end surfaces of the left side edge and the right side edge of the supporting plate are respectively provided with a first hole and a second hole, a rack is inserted in the first hole, and a guide rod is inserted in the second hole; the outer end of the rack and the outer end of the guide rod are fixed with the seat part of the clamp;

rotating parts for driving the racks to move are uniformly distributed at the positions, close to the left side edge and the right side edge, of the bottom of the supporting plate; the upper end of the rotating part is of a gear structure, and the gear structure extends into the supporting plate and is meshed with the rack; through the rotation piece, can drive the rack and drive the clip and remove along left and right sides direction.

2. An instructional book holding bracket as claimed in claim 1, wherein: the position department that the layer board upper surface is close to left side edge and right side edge all sets up the recess that supplies the bearing part embedding of clip.

3. An instructional book holding bracket according to claim 1 or 2, wherein: and a boss for pulling up the buckling part is arranged on the back side of the buckling part of the clamp.

4. An instructional book holding bracket according to claim 1 or 2, wherein: the support is used for supporting the supporting plate and comprises a reinforcing rib plate, an angle adjusting mechanism and a base; the reinforcing rib plate is fixed at the bottom of the supporting plate; the angle adjusting mechanism comprises a main upright post vertically fixed on the base, a cross beam fixed at the top of the main upright post, two upright posts fixed at two ends of the cross beam, a linear guide rail vertically fixed on the front side surface of the main upright post, a sliding block capable of moving up and down along the linear guide rail and a connecting rod hinged on the sliding block; the center of the reinforcing rib plate and the center of the angle adjusting mechanism are on the same vertical axis; the upper ends of the two vertical rods are respectively hinged with the middle part of the left side edge and the middle part of the right side edge of the reinforcing rib plate; the upper end of the connecting rod is hinged with the middle part of the front side edge of the reinforcing rib plate;

the front side surface of the linear guide rail is provided with a positioning hole, and the sliding block is provided with a pin which can be inserted into the positioning hole.

Images