CN106617770B

CN106617770B - Adjustable book stand

Info

Publication number: CN106617770B
Application number: CN201710150148.7A
Authority: CN
Inventors: 张效贞
Original assignee: Weifang Medical University
Current assignee: Weifang Medical University
Priority date: 2017-03-14
Filing date: 2017-03-14
Publication date: 2023-06-02
Anticipated expiration: 2037-03-14
Also published as: CN106617770A

Abstract

The invention provides an adjustable bookend, which comprises a fixed plate, wherein two bases which are symmetrically arranged are arranged on the fixed plate, the bases comprise a first connecting rod, the first connecting rod is fixedly connected with the fixed plate, a second connecting rod is connected with the first connecting rod in a sliding manner, and a side plate is arranged on the second connecting rod. Due to the adoption of the technical scheme, the support has the advantages of good support strength, adjustable length and convenience in use.

Description

Adjustable book stand

Technical Field

The invention relates to a bookend.

Background

Book stands are items used to support books standing steady. Materials such as iron, stainless steel and the like are made into L-shaped materials and are arranged in pairs. The book stand can prevent a row of standing books from tilting and falling down so as to prevent the book from being folded, bent or damaged. The existing book stand has poor supporting strength or cannot be adjusted in length, and is very inconvenient to use.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects, and provide the book end with good supporting strength and adjustable length.

In order to solve the problems, the invention adopts the following technical scheme:

the adjustable bookend comprises a fixed plate, two bases which are symmetrically arranged are arranged on the fixed plate, each base comprises a first connecting rod, the first connecting rods are fixedly connected with the fixed plate, the first connecting rods are slidably connected with second connecting rods, and side plates are arranged on the second connecting rods.

As an improvement: the base upside is equipped with first belt, the base below is equipped with first belt roll, first belt one end is connected with the curb plate, and the other end walks around first connecting rod and is connected with first belt roll.

As an improvement: the fixed plate is provided with a back plate, the back plate comprises a second belt and a second guide wheel, a second belt roll is arranged behind the second belt, one end of the second belt is connected with the side plate, and the other end of the second belt bypasses the second guide wheel to be connected with the second belt roll.

As an improvement: the second connecting rod is connected with the fixed plate in a sliding way.

As an improvement: the second connecting rod is provided with a sliding seat, the fixed plate is provided with a guide rail, the guide rail is provided with a dovetail groove, and the sliding seat is provided with a dovetail-shaped bulge.

As an improvement: the one end that the curb plate was kept away from to first connecting rod is equipped with first axle, be equipped with first leading wheel on the first axle.

As an improvement: the second connecting rod is provided with a second shaft, the first connecting rod is provided with a strip-shaped groove, the second shaft is arranged in the strip-shaped groove, and the section of the second shaft is in a runway shape.

As an improvement: the fixed plate is provided with a second accommodating groove, and the first belt is wound in the second accommodating groove.

As an improvement: and the middle plate is arranged on the fixing plate and is positioned above the gap between the two bases.

As an improvement: the first connecting rod is connected with a support, and the support is connected with the fixed plate.

Due to the adoption of the technical scheme, the support has the advantages of good support strength, adjustable length and convenience in use.

The invention is further described below with reference to the drawings and examples.

Drawings

FIG. 1 is a schematic view of the adjustable book end of the invention;

FIG. 2 is a schematic top view of FIG. 1;

FIG. 3 is a schematic view of the structure of the base of the adjustable book end of the invention;

FIG. 4 is a schematic view of the structure of the fixing plate in the adjustable book end of the invention;

FIG. 5 is a schematic diagram of the adsorption device in the adjustable book end of the invention;

FIG. 6 is a schematic view of the structure of section A-A of FIG. 5;

FIG. 7 is a schematic view of the structure of the inflatable body in the adjustable book end of the invention;

fig. 8 is a schematic structural view of a first link in the adjustable book end of the invention.

In the figure: 1-a first roll of tape; 2-a bracket; 3-a slide; 4-a first shaft; 5-second axis; 6-a first link; 7-a second link; 8-a first belt; 9-side plates; 10-a second belt; 11-an intermediate plate; 12-a second guide wheel; 13-a second roll of tape; 14-a guide rail; 15-a first receiving groove; 16-a second receiving groove; 17-a fixed plate; 18-screw; 19-a guide rail; 20-sliding blocks; 21-spanner bar; 22-limiting blocks; 23-jacks; 24-plug pins; 25-handle; 26-sucking disc; 27-slotting; 28-an elastic layer; 29-an expansion body; 30-a swivel cap; 31-a spanner rod hole; 32-a housing; 33-rotating shaft; 34-stretching grooves; 35-avoiding grooves; 36-a spindle groove; 37-a first guide wheel; 38-a through hole; 39-a bar-shaped groove.

Detailed Description

Examples:

as shown in fig. 1 and 2, the adjustable bookend comprises a fixed plate 17, two bases which are symmetrically arranged are arranged on the fixed plate 17, the bases comprise a first connecting rod 6, the first connecting rod 6 is fixedly connected with the fixed plate 17, a second connecting rod 7 is slidably connected with the first connecting rod 6, and a side plate 9 is arranged on the second connecting rod 7.

The base upside is equipped with first belt 8, the base below is equipped with first belt roll 1, first belt 8 one end is connected with curb plate 9, and the other end bypasses first connecting rod 6 and is connected with first belt roll 1.

Magnets are arranged on the upper sides of the first connecting rod 6 and the second connecting rod 7, and the first belt 8 is magnetically arranged.

The fixing plate 17 is provided with a back plate, the back plate comprises a second belt 10 and a second guide wheel 12, a second belt roll 13 is arranged behind the second belt 10, one end of the second belt 10 is connected with the side plate 9, and the other end bypasses the second guide wheel 12 to be connected with the second belt roll 13.

The second connecting rod 7 is in sliding connection with the fixed plate 17.

The second connecting rod 7 is provided with a sliding seat 3, the fixed plate 17 is provided with a guide rail 14, the guide rail 14 is provided with a dovetail groove, and the sliding seat 3 is provided with a dovetail-shaped bulge.

As shown in fig. 3, the end of the first link 6 away from the side plate 9 is provided with a first shaft 4, and the first shaft 4 is provided with a first guiding wheel 37.

The number of the first connecting rods 6 is three, and the first guide wheels 37 are arranged between two adjacent first connecting rods 6. The first link 6 is provided with a through hole 38.

As shown in fig. 8, the second link 7 is provided with a second shaft 5, the first link 6 is provided with a bar-shaped groove 39, the second shaft 5 is disposed in the bar-shaped groove 39, and the section of the second shaft 5 is in a racetrack shape.

The number of the second connecting rods 7 is two.

The fixing plate 17 is provided with a second accommodating groove 16, and the first belt roll 1 is arranged in the second accommodating groove 16.

The middle plate 11 is arranged on the fixed plate 17, and the middle plate 11 is arranged above the gap between the two pieces of bases.

The first connecting rod 6 is connected with a bracket 2, and the bracket 2 is connected with a fixed plate 17.

The first and

second rolls

1 and 13 are connected with a spring.

As shown in fig. 4 to 7, the fixing plate 17 is provided with an adsorption device.

The adsorption device comprises a sucker 26, an expansion body 29 is arranged at the rear part of the sucker 26, a rotating shaft groove 36 is arranged at the rear part of the expansion body 29, a slit 27 is formed between the rotating shaft groove 36 and the sucker 26, an elastic layer 28 is arranged on the slit 27, a rotating shaft 33 is arranged in the rotating shaft groove 36, the rotating shaft 33 is rotatably arranged, the section of the rotating shaft 33 is elliptical, and the section of the rotating shaft groove 36 is elliptical.

The elastic layer 28 is located at the bottom of the rotating shaft groove 36, and may also be disposed at one side of the slit 27 near the inner portion of the suction cup 26.

The slit 27 is normally in a tight state, when the rotating shaft 33 rotates for a certain angle, the rotating shaft groove 36 expands to drive the slit 27 to open, so that the area of the sucker 26 is increased, the pressure difference between the inside and the outside of the sucker 26 is increased, and the adsorption force of the sucker 26 is larger.

The expansion body 29 is arranged in the shell 32, and the expansion body 29 is provided with a avoiding groove 35.

The shell 32 is cylindrical, the shell 32 is connected with the fixing plate 17, the rotating shaft 33 extends out of the shell 32, and the part of the rotating shaft 33 extending out of the shell 32 is cylindrical. The expansion body 29 is cylindrical, the avoidance grooves 35 are trapezoidal, and the number of the avoidance grooves 35 is two.

The rear part of the expansion body 29 is also provided with a stretching groove 34, and the stretching groove 34 is communicated with a rotating shaft groove 36. The cross section of the stretching groove 34 is triangular. The number of the drawing grooves 34 is two.

The rotating shaft 33 is provided with a spanner 21.

Be equipped with spanner hole 31 on the pivot 33, spanner hole 31 internalization is provided with spanner 21, spanner 21 one end is equipped with stopper 22, spanner 21 other end is equipped with jack 23, fixed plate 17 upside is equipped with first holding tank 15, be equipped with guide rail 19 and screw rod 18 in the first holding tank 15, screw rod 18 is connected with handle 25, the last slip of guide rail 19 is provided with slider 20, be equipped with bolt 24 on the slider 20, bolt 24 corresponds the setting with jack 23. The number of guide rails 19 is two.

The bolt 24 is inserted into the jack 23, the handle 25 is rotated, the sliding block 20 slides on the guide rail 19, the spanner 21 rotates, the expansion body 29 is opened, and the expansion body is conveniently adsorbed on a tabletop.

The rotating shaft 33 is provided with a rotating shaft cap 30, and the spanner hole 31 is arranged on the rotating shaft cap 30.

The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.

Claims

1. Adjustable book end, its characterized in that: the device comprises a fixed plate (17), wherein two bases which are symmetrically arranged are arranged on the fixed plate (17), the bases comprise a first connecting rod (6), the first connecting rod (6) is fixedly connected with the fixed plate (17), the first connecting rod (6) is slidably connected with a second connecting rod (7), and a side plate (9) is arranged on the second connecting rod (7);

the upper side of the base is provided with a first belt (8), a first belt roll (1) is arranged below the base, one end of the first belt (8) is connected with the side plate (9), and the other end of the first belt is connected with the first belt roll (1) by bypassing the first connecting rod (6);

magnets are arranged on the upper sides of the first connecting rod (6) and the second connecting rod (7), and the first belt (8) is magnetically arranged;

the fixing plate (17) is provided with a back plate, the back plate comprises a second belt (10) and a second guide wheel (12), a second belt roll (13) is arranged behind the second belt (10), one end of the second belt (10) is connected with the side plate (9), and the other end of the second belt is connected with the second belt roll (13) by bypassing the second guide wheel (12);

the second connecting rod (7) is in sliding connection with the fixed plate (17); the second connecting rod (7) is provided with a sliding seat (3), the fixed plate (17) is provided with a guide rail (14), the guide rail (14) is provided with a dovetail groove, and the sliding seat (3) is provided with a dovetail-shaped bulge;

a first shaft (4) is arranged at one end, far away from the side plate (9), of the first connecting rod (6), and a first guide wheel (37) is arranged on the first shaft (4);

an intermediate plate (11) is arranged on the fixed plate (17), and the intermediate plate (11) is positioned above the gap between the two bases;

the first connecting rod (6) is connected with a bracket (2), and the bracket (2) is connected with a fixed plate (17);

the first belt roll (1) and the second belt roll (13) are respectively connected with a clockwork spring;

an adsorption device is arranged on the fixed plate (17);

the adsorption device comprises a sucker (26), an expansion body (29) is arranged at the rear part of the sucker (26), a rotating shaft groove (36) is formed in the rear part of the expansion body (29), a slit (27) is formed between the rotating shaft groove (36) and the sucker (26), an elastic layer (28) is arranged in the slit (27), a rotating shaft (33) is arranged in the rotating shaft groove (36), the rotating shaft (33) is rotatably arranged, the section of the rotating shaft (33) is elliptical, and the section of the rotating shaft groove (36) is elliptical;

the elastic layer (28) is positioned at the bottom of the rotating shaft groove (36);

the slit (27) is normally in a closed state, when the rotating shaft (33) rotates for a certain angle, the rotating shaft groove (36) expands to drive the slit (27) to open, so that the area of the sucker (26) is increased, the pressure difference between the inside and the outside of the sucker (26) is increased, and the adsorption force of the sucker (26) is increased;

the expansion device further comprises a shell (32), wherein the expansion body (29) is arranged in the shell (32), and an avoidance groove (35) is formed in the expansion body (29);

the shell (32) is cylindrical, the shell (32) is connected with the fixing plate (17), the rotating shaft (33) extends out of the shell (32), and the part of the rotating shaft (33) extending out of the shell (32) is cylindrical; the expansion body (29) is cylindrical, the avoidance grooves (35) are trapezoidal, and the number of the avoidance grooves (35) is two;

a stretching groove (34) is further formed in the rear portion of the expansion body (29), and the stretching groove (34) is communicated with the rotating shaft groove (36); the cross section of the stretching groove (34) is triangular; the number of the stretching grooves (34) is two;

a spanner rod (21) is arranged on the rotating shaft (33);

the wrench is characterized in that a wrench rod hole (31) is formed in the rotating shaft (33), a wrench rod (21) is movably arranged in the wrench rod hole (31), a limiting block (22) is arranged at one end of the wrench rod (21), an inserting hole (23) is formed in the other end of the wrench rod (21), a first accommodating groove (15) is formed in the upper side of the fixing plate (17), a guide rail (19) and a screw rod (18) are arranged in the first accommodating groove (15), the screw rod (18) is connected with a handle (25), a sliding block (20) is arranged on the guide rail (19) in a sliding mode, a bolt (24) is arranged on the sliding block (20), and the bolt (24) is correspondingly arranged with the inserting hole (23); the number of the guide rails (19) is two;

the bolt (24) is inserted into the jack (23), the handle (25) is rotated, the sliding block (20) slides on the guide rail (19), the spanner (21) rotates, the expansion body (29) is opened, and the expansion body is conveniently adsorbed on a tabletop;

the rotating shaft (33) is provided with a rotating shaft cap (30), and the spanner rod hole (31) is arranged on the rotating shaft cap (30).

2. The method according to claim 1, wherein: the second connecting rod (7) is provided with a second shaft (5), the first connecting rod (6) is provided with a strip-shaped groove (39), the second shaft (5) is arranged in the strip-shaped groove (39), and the section of the second shaft (5) is in a runway shape.

3. The adjustable book stand of claim 1, wherein: the fixing plate (17) is provided with a second accommodating groove (16), and the first belt roll (1) is arranged in the second accommodating groove (16).