Book shelf with adjustment function

Abstract

The present invention relates to the field of book management technology, and discloses a bookshelf with an adjustment function, the bookshelf with an adjustment function comprising a bottom plate, support legs fixedly mounted at the four corners of the bottom plate, side plates fixedly mounted on the tops of the left and right sides of the bottom plate, side grooves penetrating the vertical center axis of the side walls of the side plates, and the top inner side of the bottom plate fixedly connected to the bottom of the back plate. In order to better adjust the pitch angle of the books when they are laid flat, the bookshelf with an adjustment function is provided with a moving mechanism. When the rectangular sleeve is pressed downward, the pressing spring is compressed and deformed, and at the same time, the arc surface block leaves between two adjacent protrusions, thereby cooperating with the U-shaped frame, the thin groove and the arc-shaped slider to realize the forward and backward movement of the rectangular strip, and to lay the books on the rectangular strip, thereby cooperating with the lifting plate in the auxiliary component to press against the bottom edge of the book, thereby adjusting the pitch angle of the books when they are laid flat.

Description

Technical Field

[0001] The present invention relates to the technical field of book management, in particular to a book shelf with an adjustment function. Background Art

[0002] Bookshelves, also known as bookcases, are commonly found in libraries, bookstores, supermarkets and other places. There are many styles of bookshelves, which are generally divided into wooden bookshelves and iron bookshelves according to the materials. Wooden bookshelves can hold a large number of books, while iron bookshelves combine placement and display, so they are commonly found in bookstores and supermarkets.

[0003] The birth of bookshelves has greatly promoted the dissemination of knowledge. People can use bookshelves to quickly and easily access information and acquire new knowledge they want to learn.

[0004] Bookshelves used in supermarkets, bookstores, and other places need to display more book cover information, so books are laid out flat instead of stacked. However, current bookshelves are simply spliced ​​together with outer shell panels and partitions, and the pitch angle of the books cannot be adjusted to meet different needs. In addition, when shorter children want to take books, the height of the partitions cannot be adjusted from the ground, which will be very troublesome. In view of this, we propose a bookshelf with an adjustable function. Summary of the Invention

[0005] The object of the present invention is to provide a bookshelf with an adjustment function to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a book shelf with an adjustable function, comprising a bottom plate, wherein the four corners of the bottom plate are fixedly mounted with supporting legs, the tops of the left and right sides of the bottom plate are fixedly mounted with side plates, the vertical center axis of the side plates is provided with a penetrating side groove, the top inner side of the bottom plate is fixedly connected to the bottom of the back plate, the inner outer wall of the side plate is fixedly connected to the outer outer wall of the back plate, a drawer is slidably mounted on the top of the bottom plate, a pull ring is fixedly mounted on the outer outer wall of the drawer, a moving mechanism and an auxiliary component are provided on the top of the bottom plate, and the moving mechanism includes a rectangular slide The top of the partition is fixedly connected to the bottom of the U-shaped frame, and a rectangular sleeve is provided on the outer side of the top of the U-shaped frame. The upper surface of the top of the U-shaped frame is provided with a fine groove in the inner and outer directions, and an arcuate slider is slidably installed in the inner part of the fine groove. The top surface of the inner part of the rectangular sleeve is fixedly connected to the top of the pressing spring, and the bottom of the pressing spring is fixedly connected to the top of the arcuate slider.

[0007] Preferably, the inner walls of the rectangular sleeve in the left and right directions slide in contact with the side walls of the U-shaped frame, the inner bottom surface of the rectangular sleeve is fixedly connected to the bottom of the arc block, and the lower surface of the top of the U-shaped frame is fixedly connected to the top of the protrusion. The protrusions are provided in multiple groups and are arranged in an equidistant linear array on the lower surface of the top of the U-shaped frame. The distance between two adjacent protrusions is equal to the width of the arc block, and the arc outer wall of the arc block slides in contact with the arc outer wall of the protrusion, so that the rectangular bar can be limited and fixed by the cooperation of the arc block and the protrusion.

[0008] Preferably, the rectangular slide rails and side sliders are provided in four groups and are respectively arranged on the four corners of the side panels. The U-shaped frame, rectangular sleeve, fine groove, arc slider, pressure spring and arc surface block are provided in two groups and are symmetrically arranged on the top of the left and right ends of the partition with the horizontal center line in the inner and outer directions of the partition as the symmetry axis. The left and right ends of the rectangular strip are fixedly connected between the side walls facing each other of the two rectangular sleeves.

[0009] Preferably, the auxiliary component includes an L-shaped bar, the bottom of the rectangular sleeve is fixedly connected to the top of the L-shaped bar, a slope block is fixedly installed on the upper surface of the bottom of the L-shaped bar, a U-shaped groove is provided on the top of the partition, the L-shaped bar is located inside the U-shaped groove, and the inside of the U-shaped groove slides and fits the side walls in the inner and outer directions of the lifting plate.

[0010] Preferably, the top ends of the side walls of the lifting plate in the left and right directions are fixedly connected to the side walls of the block, the bottom of the block is fixedly connected to the top of the return spring, the bottom of the return spring is fixedly connected to the top of the partition, and the bottom end of the inner and outer walls of the lifting plate is fixedly connected to one end of a round rod, the round rod is located directly above the inclined block, and the end of the round rod away from the lifting plate slides and fits the inclined outer wall of the inclined block. The L-shaped strip, inclined block, block, return spring and round rod are provided in two groups and are symmetrically arranged with the horizontal center line in the inner and outer directions of the partition as the axis of symmetry.

[0011] Preferably, a lifting mechanism is provided on the top of the bottom plate, and a rotating shaft that passes through the side plate and the back plate is rotatably installed at the bottom end of the side wall in the inner and outer directions of the side plate, and a crank is fixedly installed at one end of the rotating shaft located on the right side when viewed from the back, and the arc-shaped outer wall of the rotating shaft is fixedly connected to the arc-shaped inner wall of the pulley, and the two arc-shaped outer walls of the pulley are respectively connected to the left and right ends of the transmission belt, and the pulley and the transmission belt are located on the inner side of the back plate when viewed from the front.

[0012] Preferably, the arcuate outer wall at one end of the rotating shaft located inside the side groove is fixedly connected to the arcuate inner wall of the active bevel gear, a threaded rod is provided inside the side groove, the upper and lower ends of the threaded rod are rotatably connected to the inner wall of the side plate, the arcuate outer wall at the bottom end of the threaded rod is fixedly connected to the arcuate inner wall of the driven bevel gear, the active bevel gear is meshed and connected to the driven bevel gear, a threaded block is installed on the outer thread of the threaded rod, the side wall of the threaded block is fixedly connected to the side wall of the partition, a limit block fixedly connected to the inner wall of the side plate is provided at the bottom end of the side groove, and the threaded rod passes through the limit block.

[0013] Preferably, a dustproof component is provided on the top of the base plate, and the outer walls of the two side plates away from the center of the base plate are fixedly installed with arc-shaped slide rails, and an external slider is slidably installed inside the arc-shaped slide rails. The side walls of the external slider are fixedly connected to the bottom side walls of the side blocks, and the top side walls of the two side blocks are respectively fixedly connected to the left and right side walls of the connecting shaft. The arc-shaped outer wall of the connecting shaft is hinged with a draw hook, and the dustproof cloth can be fixed in the unfolded state by cooperating with the draw hook and the pull ring.

[0014] Preferably, fixed blocks are fixedly installed on the top of the left and right ends of the back panel, and the arc-shaped inner walls of the two fixed blocks are rotatably connected to the arc-shaped outer walls of the left and right ends of the winding roller. The arc-shaped outer wall of the winding roller is fixedly installed with the center end of the dustproof cloth, and the outer end of the dustproof cloth is fixedly connected to the arc-shaped outer wall of the connecting shaft.

[0015] Compared with the prior art, the present invention provides a bookshelf with an adjustable function, which has the following beneficial effects:

[0016] 1. This bookshelf with an adjustable function is equipped with a moving mechanism to better adjust the pitch angle of the books when they are laid flat. When the rectangular sleeve is pressed downward, the pressing spring is compressed and deformed, and the arc block leaves the space between the two adjacent protrusions. Thus, in conjunction with the U-shaped frame, the thin groove and the arc-shaped slider, the rectangular bar can be moved back and forth. Books can be laid on the rectangular bar, and the lifting plate in the auxiliary component can be used to press against the bottom edge of the books, thereby adjusting the pitch angle of the books when they are laid flat.

[0017] 2. In order to better cooperate with the moving mechanism, the bookshelf with an adjustable function needs to raise the lifting plate to stabilize the books because the pitch angle of the books changes and the center of gravity of the books increases as they move forward. When the rectangular bar moves forward, the L-shaped bar, the inclined block and the U-shaped groove are combined to enable the round rod to drive the lifting plate upward. At the same time, the square block is combined to cause the return spring to stretch and deform, thereby better stabilizing the books.

[0018] 3. In order to better accommodate people of different heights in taking books, the adjustable bookshelf is equipped with a lifting mechanism. When the crank is turned, the two active bevel gears rotate synchronously in the same direction in conjunction with the rotating shaft, pulley and transmission belt, thereby cooperating with the driven bevel gear and threaded rod to make the threaded block move up and down in the side groove, thereby driving the partition to move up and down, thereby improving the adaptability of the bookshelf.

[0019] 4. In order to better prevent dust from entering the bookshelf and on the books, the bookshelf with an adjustable function is provided with a dustproof component. When the drawer is pulled, the dustproof cloth is stretched out on the outside of the winding roller in cooperation with the arc-shaped slide rail, the external slider, the side block and the connecting shaft. When the drawer is pulled down to the drawer, the drawer hook is hooked on the pull ring, so that the dustproof cloth wraps the front side of the bookshelf, thereby achieving the dustproof effect when the bookshelf is not in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of a front view of the overall structure of the present invention, viewed from the right side and looking down;

[0021] Figure 2 This is a schematic diagram of the overall structure of the present invention from a front perspective, looking from the right and looking downward;

[0022] Figure 3 For the present invention Figure 2 Schematic diagram of the enlarged structure of area A in the middle;

[0023] Figure 4 This is a schematic diagram of the cross-section connection of the outer structure of the partition of the present invention;

[0024] Figure 5 This is a schematic top view of the outer structure of the partition of the present invention;

[0025] Figure 6 This is a schematic diagram of a structure of the present invention as a whole, viewed from the back and from the right side;

[0026] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of the middle B area;

[0027] Figure 8 For the present invention Figure 6 Schematic diagram of the enlarged structure of the middle C area;

[0028] Figure 9 This is a schematic diagram of the outer structural connection of the coupling shaft according to the present invention.

[0029] In the figure: 1. bottom plate; 2. supporting legs; 3. side plates; 4. side grooves; 5. back plate; 6. drawer; 7. pull ring; 8. moving mechanism; 81. rectangular slide rail; 82. side slider; 83. partition; 84. U-shaped frame; 85. rectangular sleeve; 86. thin groove; 87. arc-shaped slider; 88. pressing spring; 89. arc block; 810. protrusion; 811. rectangular bar; 9. auxiliary component; 91. L-shaped bar; 92. inclined block; 93. U-shaped groove; 94. lifting plate; 95. block ;96. Return spring;97. Round rod;10. Lifting mechanism;101. Rotating shaft;102. Crank handle;103. Pulley;104. Transmission belt;105. Driving bevel gear;106. Threaded rod;107. Driven bevel gear;108. Threaded block;109. Limit block;11. Dustproof assembly;111. Arc slide rail;112. External slider;113. Side block;114. Connecting shaft;115. Draw hook;116. Fixed block;117. Winding roller;118. Dustproof cloth. DETAILED DESCRIPTION

[0030] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] See also Figure 1-9 The present invention provides a technical solution: a bookshelf with an adjustable function, comprising a base plate 1, with support legs 2 fixedly mounted at the four corners of the bottom of the base plate 1. The support legs 2 not only support and fix the books, but also lift the books off the bottom surface to prevent moisture. Side panels 3 are fixedly mounted on the tops of the left and right sides of the base plate 1, and a through side groove 4 is provided at the vertical center axis of the side wall of the side panel 3. The top inner side of the base plate 1 is fixedly connected to the bottom of the back panel 5, and the inner outer wall of the side panel 3 is fixedly connected to the outer outer wall of the back panel 5. A drawer 6 is slidably mounted on the top of the base plate 1, and the drawer 6 can be used to store book inventory. A pull ring 7 is fixedly mounted on the outer outer wall of the drawer 6. A moving mechanism 8 and an auxiliary component 9 are provided on the top of the base plate 1.

[0032] See also Figure 1-5In one embodiment of the present invention, the moving mechanism 8 includes a rectangular slide rail 81, a side wall of the side plate 3 facing the center of the bottom plate 1 is fixedly connected to the side wall of the rectangular slide rail 81, a side slider 82 is slidably installed inside the side of the rectangular slide rail 81 away from the side plate 3, and the outer wall of the side slider 82 away from the rectangular slide rail 81 is fixedly connected to the left and right side walls of the partition 83. There are two partitions 83. The rectangular slide rail 81 and the side slider 82 make the partition 83 move up and down more stable and play a certain load-bearing role. The top of the partition 83 is fixedly connected to the bottom of the U-shaped frame 84, and the outer side of the top of the U-shaped frame 84 is provided with a rectangular sleeve 85. When the rectangular sleeve 85 is pressed downward, the pressing spring 88 is compressed and deformed, and the arc surface The block 89 will leave between the two adjacent protrusions 810, thereby cooperating with the U-shaped frame 84, so that the arc-shaped slider 87 can slide back and forth inside the fine groove 86, thereby realizing the forward and backward movement of the rectangular bar 811. The upper surface of the top of the U-shaped frame 84 is provided with a fine groove 86 in the inner and outer directions, and the arc-shaped slider 87 is slidably installed inside the fine groove 86. The top surface of the interior of the rectangular sleeve 85 is fixedly connected to the top of the pressing spring 88, and the bottom of the pressing spring 88 is fixedly connected to the top of the arc-shaped slider 87. The pressing spring 88 also plays the role of supporting the rectangular sleeve 85. The inner wall of the rectangular sleeve 85 slides in the left and right directions to fit the side wall of the U-shaped frame 84. The inner bottom surface of the rectangular sleeve 85 is fixedly connected to the bottom of the arc block 89, and the lower surface of the top of the U-shaped frame 84 is fixedly connected to the top of the protrusion 810 The convex blocks 810 are provided with multiple groups, and are arranged in an equidistant linear array on the lower surface of the top of the U-shaped frame 84, and the distance between two adjacent convex blocks 810 is equal to the width of the arc block 89, and the arc outer wall of the arc block 89 slides and fits the arc outer wall of the convex block 810, that is, two adjacent convex blocks 810 can clamp the arc block 89 for fixing, so that the rectangular bar 811 can be limited and fixed by the cooperation of the arc block 89 and the convex block 810. The design of the two opposite surfaces of the arc block 89 and the convex block 810 are both arc surfaces, which is conducive to the former entering between the two adjacent convex blocks 810. There are four groups of rectangular slide rails 81 and side sliders 82, and they are respectively arranged on the four corners of the side plate 3. The U-shaped frame 84, the rectangular sleeve 85, and the fine groove 86, arc-shaped slider 87, pressing spring 88 and arc-surface block 89 are provided in two groups, and are symmetrically arranged on the top of the left and right ends of the partition 83 with the horizontal midline in the inner and outer directions of the partition 83 as the symmetry axis. The left and right ends of the rectangular strip 811 are fixedly connected between the side walls facing each other of the two rectangular sleeves 85. When the pressing hand is released, the arc-surface block 89 will re-enter between the two adjacent protrusions 810 at the current position, thereby fixing the rectangular strip 811 at the current position. When the book is laid against the rectangular strip 811, the lifting plate 94 in the auxiliary component 9 is pressed against the bottom edge of the book, so that the pitch angle of the flat placement of the book can be adjusted. The closer the rectangular strip 811 is to the front, the larger the angle between the book and the partition 83.

[0033] See also Figure 1-5In one embodiment of the present invention, the auxiliary component 9 includes an L-shaped bar 91, the bottom of the rectangular sleeve 85 is fixedly connected to the top of the L-shaped bar 91, and an inclined block 92 is fixedly installed on the upper surface of the bottom of the L-shaped bar 91. A U-shaped groove 93 is provided on the top of the partition 83. The L-shaped bar 91 is located inside the U-shaped groove 93. The inside of the U-shaped groove 93 slides and fits the side walls of the lifting plate 94 in the inner and outer directions. The top of the side wall of the lifting plate 94 in the left and right directions is fixedly connected to the side wall of the block 95. The bottom of the block 95 is fixedly connected to the top of the return spring 96. The bottom of the return spring 96 is fixedly connected to the top of the partition 83. Due to the change in the pitch angle of the book laying, the closer it is to the front, the higher the center of gravity of the book will be, so the lifting plate 94 needs to be raised to stabilize the book. When the rectangular bar 811 moves forward, the L-shaped bar 91 will drive the inclined plate 91 to move forward. The surface block 92 moves forward, and the bottom end of the inner outer wall of the lifting plate 94 is fixedly connected to one end of the round rod 97. The round rod 97 is located directly above the inclined block 92, and the end of the round rod 97 away from the lifting plate 94 slides and fits the inclined outer wall of the inclined block 92. The L-shaped bar 91, the inclined block 92, the square 95, the return spring 96 and the round rod 97 are provided in two groups, and are symmetrically arranged with the horizontal center line in the inner and outer directions of the partition 83 as the symmetry axis, so that the inclined block 92 pushes the round rod 97 upward, so that the round rod 97 can drive the lifting plate 94 to move upward. At the same time, the return spring 96 is stretched and deformed in cooperation with the square 95, so that the book can be better stabilized. On the contrary, when the rectangular bar 811 moves backward, the return spring 96 releases the elastic potential energy, which can make the lifting plate 94 reset downward.

[0034] See also Figure 1 、 Figure 6 and Figure 7In one embodiment of the present invention, a lifting mechanism 10 is provided on the top of the bottom plate 1, and a rotating shaft 101 is rotatably installed at the bottom end of the side wall in the inner and outer directions of the side plate 3, which passes through the side plate 3 and the back plate 5. When viewed from the back, a crank 102 is fixedly installed at one end of the rotating shaft 101 located on the right side. When the crank 102 is turned, the rotating shaft 101 is driven to rotate. The arc-shaped outer wall of the rotating shaft 101 is fixedly connected to the arc-shaped inner wall of the pulley 103. The arc-shaped outer walls of the two pulleys 103 are respectively connected to the left and right ends of the transmission belt 104. Internally, the pulley 103 and the transmission belt 104 are located on the inner side of the back plate 5 as viewed from the front, so that the transmission of the transmission belt 104 will drive the two pulleys 103 to rotate synchronously in the same direction. The arc-shaped outer wall of one end of the rotating shaft 101 is located inside the side groove 4 and is fixedly connected to the arc-shaped inner wall of the active bevel gear 105. A threaded rod 106 is provided inside the side groove 4, so that the two active bevel gears 105 rotate synchronously in the same direction. The upper and lower ends of the threaded rod 106 are both rotatably connected to the inner wall of the side plate 3. The arc-shaped outer wall at the bottom end of the threaded rod 106 is fixedly connected to the arc-shaped inner wall of the driven bevel gear 107, and the active bevel gear 105 is meshed with the driven bevel gear 107. The outer surface of the threaded rod 106 is threadedly installed with a threaded block 108, and the side wall of the threaded block 108 is fixedly connected to the side wall of the partition 83, thereby driving the driven bevel gear 107 to rotate in the horizontal direction, thereby making the threaded rod 106 rotate in the vertical direction, so that the threaded block 108 can move up and down in the side groove 4, thereby cooperating with the rectangular slide rail 81 and the side slider 82 in the moving mechanism 8 to drive the partition 83 to move up and down, thereby improving the adaptability of the bookshelf, so as to better adapt to people of different heights to take books. A limit block 109 is fixedly connected to the inner wall of the side panel 3 at the bottom end of the side groove 4. The threaded rod 106 passes through the limit block 109. The limit block 109 can prevent the threaded block 108 from falling too much and plays a blocking role. It is worth noting that when the drawer 6 is pulled out, the height of the partition 83 can be lowered.

[0035] See also Figure 1 、 Figure 6 、 Figure 8 and Figure 9In one embodiment of the present invention, a dustproof component 11 is provided on the top of the bottom plate 1, and the outer walls of the two side plates 3 on one side away from the center of the bottom plate 1 are fixedly installed with an arc-shaped slide rail 111, and an external slider 112 is slidably installed inside the arc-shaped slide rail 111. When the hook 115 is pulled, the connecting shaft 114 is driven to move downward, so that the external slider 112 slides downward inside the arc-shaped slide rail 111, and the side wall of the external slider 112 is fixedly connected to the bottom side wall of the side block 113. The top side walls of the two side blocks 113 are respectively fixedly connected to the left and right side walls of the connecting shaft 114. The arc-shaped outer wall of the connecting shaft 114 is hinged with a hook 115, and the left and right top ends of the back plate 5 are respectively fixedly installed with fixed blocks 116. The arc-shaped inner walls of the two fixed blocks 116 are respectively rotatably connected to the winding rollers. The curved outer walls on the left and right ends of 117. It is worth noting that the internal structure and working principle of the winding roller 117 are existing technologies (analogous to a tape measure, which is pulled back by a spring when retracted), so they will not be described in detail here. The center end of the dustproof cloth 118 is fixedly installed on the curved outer wall of the winding roller 117, and the outer end of the dustproof cloth 118 is fixedly connected to the curved outer wall of the connecting shaft 114. The dustproof cloth 118 can be fixed in the unfolded state by the cooperation of the drawer 115 and the pull ring 7, so that the dustproof cloth 118 is stretched out on the outside of the winding roller 117 in cooperation with the side block 113. When it is pulled down to the drawer 6, the draw hook 115 is hooked on the pull ring 7, so that the dustproof cloth 118 wraps the front side of the bookshelf, thereby achieving the dust-proof effect when the bookshelf is not in use.

[0036] Working principle: When the rectangular sleeve 85 is pressed downward, the compression spring 88 will be compressed and deformed, and the arc block 89 will leave between the two adjacent protrusions 810, thereby cooperating with the U-shaped frame 84 to allow the arc slider 87 to slide back and forth inside the slot 86, thereby realizing the forward and backward movement of the rectangular bar 811. When the pressing hand is released, the arc block 89 will re-enter between the two adjacent protrusions 810 at the current position, thereby fixing the rectangular bar 811 at the current position. When the book is placed on the rectangular bar 811, the lifting plate 94 in the auxiliary component 9 will press against the bottom of the book. The edge of the rectangular bar 811 can adjust the pitch angle of the books when they are laid flat. The closer the rectangular bar 811 is to the front, the larger the angle between the books and the partition 83. Furthermore, due to the change in the pitch angle of the books when they are laid, the closer they are to the front, the higher the center of gravity of the books will be. Therefore, the lifting plate 94 needs to be raised to stabilize the books. When the rectangular bar 811 moves forward, it cooperates with the L-shaped bar 91 to drive the inclined block 92 to move forward, so that the inclined block 92 pushes the round rod 97 upward, so that the round rod 97 can drive the lifting plate 94 to move upward. At the same time, the square block 95 cooperates to cause the return spring 96 to be stretched and deformed, thereby It can better stabilize the books. On the contrary, when the rectangular bar 811 moves backward, the elastic potential energy of the reset spring 96 is released, so that the lifting plate 94 can be reset downward. Further, when the crank 102 is turned, the rotating shaft 101 is driven to rotate, so that the transmission belt 104 drives the two pulleys 103 to rotate synchronously in the same direction, so that the two active bevel gears 105 rotate synchronously in the same direction, thereby driving the driven bevel gear 107 to rotate in the horizontal direction, so that the threaded rod 106 rotates in the vertical direction, so that the threaded block 108 can rotate in the side groove. 4 moves up and down, thereby driving the partition 83 to move up and down, thereby improving the adaptability of the bookshelf, so as to better adapt to people of different heights to take books. Further, when the drawer 115 is pulled, the connecting shaft 114 is driven to move downward, so that the external slider 112 slides downward inside the arc-shaped slide rail 111, thereby cooperating with the side block 113 to make the dustproof cloth 118 be stretched out on the outside of the winding roller 117. When it is pulled down to the drawer 6, the drawer 115 is hooked on the pull ring 7, so that the dustproof cloth 118 wraps the front side of the bookshelf, achieving the dustproof effect when the bookshelf is not in use.

[0037] While the present invention has been generally described above, modifications and improvements are readily apparent to those skilled in the art. Therefore, modifications and improvements that do not depart from the spirit of the present invention are intended to be within the scope of the present invention.

Claims

1. A bookshelf with an adjustable function, comprising a bottom plate (1), characterized in that: The bottom four corners of the bottom plate (1) are respectively fixedly mounted with support legs (2), the tops of the left and right sides of the bottom plate (1) are respectively fixedly mounted with side plates (3), the vertical center axis of the side walls of the side plates (3) is provided with a through side groove (4), the top of the inner side of the bottom plate (1) is fixedly connected to the bottom of the back plate (5), the inner outer wall of the side plate (3) is fixedly connected to the outer outer wall of the back plate (5), a drawer (6) is slidably mounted on the top of the bottom plate (1), and a pull ring (7) is fixedly mounted on the outer outer wall of the drawer (6), a moving mechanism (8) and an auxiliary component (9) are provided on the top of the bottom plate (1), the moving mechanism (8) includes a rectangular slide rail (81), the side wall of the side plate (3) facing the center of the bottom plate (1) is fixedly connected to the rectangular slide rail (81), and the side wall of the side plate (3) facing the center of the bottom plate (1) is fixedly connected to the rectangular slide rail (81). A side wall of the rail (81), a side slider (82) is slidably installed inside the side of the rectangular slide rail (81) away from the side plate (3), the outer wall of the side slider (82) away from the rectangular slide rail (81) is fixedly connected to the left and right side walls of the partition (83), the top of the partition (83) is fixedly connected to the bottom of the U-shaped frame (84), the top outer side of the U-shaped frame (84) is provided with a rectangular sleeve (85), the top upper surface of the U-shaped frame (84) is provided with a fine groove (86) in the inner and outer directions, the fine groove (86) is slidably installed inside the arc-shaped slider (87), the inner top surface of the rectangular sleeve (85) is fixedly connected to the top of the pressing spring (88), and the bottom of the pressing spring (88) is fixedly connected to the top of the arc-shaped slider (87); The inner wall of the rectangular sleeve (85) slides in contact with the side wall of the U-shaped frame (84) in the left and right directions, the inner bottom surface of the rectangular sleeve (85) is fixedly connected to the bottom of the arc block (89), and the top lower surface of the U-shaped frame (84) is fixedly connected to the top of the protrusion (810), and the protrusions (810) are provided in multiple groups and arranged in an equidistant linear array on the top lower surface of the U-shaped frame (84), and the distance between two adjacent protrusions (810) is equal to the width of the arc block (89), and the arc outer wall of the arc block (89) slides in contact with the arc outer wall of the protrusion (810); The auxiliary component (9) includes an L-shaped bar (91), the bottom of the rectangular sleeve (85) is fixedly connected to the top of the L-shaped bar (91), and a slope block (92) is fixedly installed on the upper surface of the bottom of the L-shaped bar (91). A U-shaped groove (93) is provided on the top of the partition (83). The L-shaped bar (91) is located inside the U-shaped groove (93). The inside of the U-shaped groove (93) slides in contact with the side walls of the lifting plate (94) in the inner and outer directions. The lifting plate (94) is on the left. The top of the side wall in the right direction is fixedly connected to the side wall of the block (95), the bottom of the block (95) is fixedly connected to the top of the return spring (96), the bottom of the return spring (96) is fixedly connected to the top of the partition (83), and the bottom end of the inner outer wall of the lifting plate (94) is fixedly connected to one end of a round rod (97), the round rod (97) is located directly above the inclined block (92), and the end of the round rod (97) away from the lifting plate (94) slides and fits the inclined outer wall of the inclined block (92).

2. The adjustable bookshelf according to claim 1, characterized in that: The rectangular slide rails (81) and the side sliders (82) are provided in four groups and are respectively provided at the four corners of the side plate (3); the U-shaped frame (84), the rectangular sleeve (85), the thin groove (86), the arc-shaped slider (87), the pressing spring (88) and the arc surface block (89) are provided in two groups and are symmetrically provided at the top of the left and right ends of the partition (83) with the horizontal center line in the inner and outer directions of the partition (83) as the symmetry axis; the left and right ends of the rectangular strip (811) are fixedly connected between the side walls facing each other of the two rectangular sleeves (85); the L-shaped strip (91), the inclined surface block (92), the square block (95), the return spring (96) and the round rod (97) are provided in two groups and are symmetrically provided with the horizontal center line in the inner and outer directions of the partition (83) as the symmetry axis.

3. The adjustable bookshelf according to claim 1, characterized in that: A lifting mechanism (10) is provided on the top of the bottom plate (1), and a rotating shaft (101) penetrating the side plate (3) and the back plate (5) is rotatably installed at the bottom end of the side wall in the inner and outer directions of the side plate (3), and a crank handle (102) is fixedly installed at one end of the rotating shaft (101) located on the right side when viewed from the back, and the arcuate outer wall of the rotating shaft (101) is fixedly connected to the arcuate inner wall of the pulley (103). The arcuate outer walls of the two pulleys (103) are respectively connected to the left and right ends of the transmission belt (104), and the pulley (103) and the transmission belt (104) are located on the inner side of the back plate (5) when viewed from the front.

4. The adjustable bookshelf according to claim 3, characterized in that: The arcuate outer wall of one end of the rotating shaft (101) is located inside the side groove (4) and is fixedly connected to the arcuate inner wall of the active bevel gear (105). A threaded rod (106) is provided inside the side groove (4). The upper and lower ends of the threaded rod (106) are both rotatably connected to the inner wall of the side plate (3). The arcuate outer wall of the bottom end of the threaded rod (106) is fixedly connected to the arcuate inner wall of the driven bevel gear (107). The active bevel gear (105) is meshedly connected to the driven bevel gear (107). A threaded block (108) is installed on the outer thread of the threaded rod (106). The side wall of the threaded block (108) is fixedly connected to the side wall of the partition (83). A limit block (109) fixedly connected to the inner wall of the side plate (3) is provided at the bottom end of the side groove (4). The threaded rod (106) passes through the limit block (109).

5. The adjustable bookshelf according to claim 1, characterized in that: A dustproof component (11) is provided on the top of the base plate (1), and an arc-shaped slide rail (111) is fixedly installed on the outer wall of the two side plates (3) away from the center of the base plate (1), and an external slider (112) is slidably installed inside the arc-shaped slide rail (111), and the side wall of the external slider (112) is fixedly connected to the bottom side wall of the side block (113), and the top side walls of the two side blocks (113) are respectively fixedly connected to the left and right side walls of the connecting shaft (114), and the arc-shaped outer wall of the connecting shaft (114) is hinged with a draw hook (115).

6. The adjustable bookshelf according to claim 5, characterized in that: The top of the left and right ends of the back plate (5) are respectively fixedly mounted with fixed blocks (116), and the arc-shaped inner walls of the two fixed blocks (116) are respectively rotatably connected to the arc-shaped outer walls of the left and right ends of the winding roller (117), and the arc-shaped outer wall of the winding roller (117) is fixedly mounted with a central end of a dustproof cloth (118), and the outer end of the dustproof cloth (118) is fixedly connected to the arc-shaped outer wall of the connecting shaft (114).

Images