CN206507576U - A kind of bookcase - Google Patents

Abstract

The utility model discloses a bookcase, which comprises a frame and a vertical partition, wherein the vertical partition is arranged in the frame and is parallel to two side walls of the frame, and the vertical partition is connected to the two side walls of the frame. The spacing is adjustable; it can be seen that the bookcase provided by the utility model can adjust the distance between the vertical partition and the two side walls of the frame during use, so that two adjacent vertical partitions or the vertical partition and the frame One of the side walls cooperates to clamp the printed matter to form an effective support to prevent it from toppling over or torsionally deformed, so as to avoid forming wrinkles, creases or damage on the printed matter, and achieve the purpose of better preserving the printed matter.

Description

a bookcase

technical field

The utility model relates to the technical field of furniture, in particular to a bookcase.

Background technique

Bookcase is a kind of common furniture, and people can utilize bookcase to store various types of printed matter and organize it, so that consult, and keep the surrounding environment clean and tidy, therefore, bookcase has become a kind of very important furniture in office or family.

In the prior art, the bookcase generally includes a main body and a plurality of horizontal partitions and a plurality of vertical partitions arranged in the main body. The horizontal partitions and the vertical partitions form a grid for holding printed materials. The spacing between the partitions is fixed. When the number of books in the grid is small, the books at one end cannot be supported by the vertical partitions, so they are easy to fall over, twist and deform, resulting in wrinkles, creases, or even damage at the corners of the cover or pages. , It will make the bookcase become messy, which is not conducive to the preservation of books.

Therefore, how to provide a bookcase that can effectively support the printed matter inside, protect the printed matter, avoid wrinkles and creases, and better preserve the printed matter has become an important technical problem to be solved urgently by those skilled in the art.

Utility model content

In view of this, the utility model provides a bookcase to achieve the purpose of effectively supporting the printed matter inside, protecting the printed matter, avoiding wrinkles and creases, and better preserving the printed matter.

In order to achieve the above object, the utility model provides the following technical solutions:

A bookcase, comprising:

frame;

A vertical partition arranged in the frame and parallel to the two side walls of the frame, and the distance between the vertical partition and the two side walls of the frame is adjustable.

Preferably, it also includes a first drive assembly for driving the movement of the vertical partition, the first drive assembly includes a first screw rod rotatably arranged on the side wall of the frame, the vertical partition A threaded hole is provided on the separator, and the first threaded rod cooperates with the threaded hole to convert the rotational movement of the threaded rod into the linear motion of the vertical partition along the axial direction of the threaded rod.

Preferably, a horizontal partition is also provided in the frame, and a first through slot a through which the horizontal partition can pass is provided on the vertical partition, and the horizontal partition passes through the slot And its two ends are respectively connected with the two side walls of the frame.

Preferably, the horizontal partition includes an upper board and a lower board arranged in parallel, and two first through slots a are opened on the vertical partition, and the upper board and the lower board respectively pass through two The first through slot a, the first threaded rod is located in the interlayer between the upper plate and the lower plate.

Preferably, it also includes a second drive assembly for driving the horizontal partition to move up and down along the width direction of the first through slot a, the second drive assembly includes a second screw rod and a second screw rod that cooperates with the second screw rod The first screw sleeve, the top wall of the frame and the horizontal partition are provided with slide grooves, the first end of the second screw rod is slidably arranged in the slide groove of the frame top wall and The axial direction is fixed relative to the frame, and the second end cooperates with the first screw sleeve which is slidably arranged in the slide groove of the horizontal partition and fixed axially and circumferentially relative to the horizontal partition.

Preferably, the vertical partition includes a left side plate and a right side plate, and the second screw rod and the first screw sleeve are both located in the interlayer between the left side plate and the right side plate.

Preferably, it also includes a box body, the frame is arranged on the top of the box body, a first container is opened at the bottom of the side wall of the box body, a lift chair is arranged in the first container body, and the lift chair Chair includes:

a first bracket, one end of which is rotatably disposed in the first container, and the other end is a free end capable of being rotated out of the first container;

a first lifting mechanism, the bottom end of which is arranged on the first bracket;

The cushion board is fixedly connected to the top of the first lifting mechanism.

Preferably, the bottom of the free end of the first bracket is provided with a groove, and foldable feet are arranged in the groove, and the bottom surface of the unfolded feet is on the same plane as the bottom surface of the box.

Preferably, the first lifting mechanism includes two upper hinged arms whose middle parts are hinged to each other, two lower hinged arms whose middle parts are hinged to each other, and a screw rod, and the lower ends of the two upper hinged arms are connected to the lower ends of the two lower hinged arms. The upper ends are hinged one by one through hinged shafts, the screw rods are matched with the threaded through holes on the two hinged shafts respectively, the upper end of one of the two upper hinged arms is hinged with the cushion board, and the other The upper end is slidably connected with the cushion board, the lower end of one of the two lower articulated arms is articulated with the first bracket, and the lower end of the other is slidably connected with the first bracket.

Preferably, the bottom of the side wall of the box is also provided with a second container, and a lifting table is arranged in the second container, and the lifting table includes:

a second bracket, one end of which is rotatably disposed in the second container, and the other end is a free end capable of turning out from the second container;

a second lifting mechanism, the bottom end of which is arranged on the second bracket;

The desktop board is fixedly connected to the top of the second lifting mechanism.

Preferably, a blocking assembly is provided in the box, and the blocking assembly includes a baffle and a third drive assembly that drives the baffle up and down, and the third drive assembly can drive the baffle from the box. The frame protrudes from the second through slot on the top of the body to block the frame.

Preferably, the third drive assembly includes a third screw rod vertically arranged in the box and a second screw sleeve fixed to the side of the baffle, the third screw rod and the The second screw sleeve cooperates to drive the baffle up and down.

Preferably, the third drive assembly further includes a first bevel gear disposed at the end of the third screw rod and an upper second bevel gear rotatably disposed on the side wall of the box, the first bevel gear The bevel gear meshes with the second bevel gear, and a handle is connected to the second bevel gear through a transmission shaft.

It can be seen from the above technical solutions that the bookcase provided by the utility model includes a frame and a vertical partition, wherein the vertical partition is arranged in the frame and is parallel to the two side walls of the frame, and the vertical partition and the frame The distance between the two side walls is adjustable;

It can be seen that when the bookcase provided by the utility model is in use, the distance between the two adjacent vertical partitions or the vertical partition and one of the side walls of the frame can be adjusted by adjusting the distance between the vertical partition and the two side walls of the frame. Cooperate with clamping the printed matter to form an effective support to prevent it from toppling or torsion deformation, so as to avoid forming wrinkles, creases or damage on the printed matter, and achieve the purpose of better preserving the printed matter.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the three-dimensional structure schematic diagram of the bookcase provided by the embodiment of the present invention;

Fig. 2 is the front view of the bookcase provided by the embodiment of the utility model;

Fig. 3 is a structural diagram of cooperation between the vertical partition and the first drive assembly in the bookcase provided by the embodiment of the present invention;

Fig. 4 is a schematic structural view of the lift chair in the bookcase provided by the embodiment of the present invention;

Fig. 5 is a schematic structural view of the lift table in the bookcase provided by the embodiment of the present invention;

Fig. 6 is a schematic structural diagram of the sealing assembly in the bookcase provided by the embodiment of the present invention.

detailed description

The utility model provides a bookcase to achieve the purpose of effectively supporting the printed matter in the bookcase, protecting the printed matter, avoiding wrinkles and creases, and better preserving the printed matter.

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1 and Fig. 2, Fig. 1 is a three-dimensional structural schematic diagram of the bookcase provided by the embodiment of the present utility model, and Fig. 2 is a front view of the bookcase provided by the embodiment of the present utility model.

A bookcase provided by an embodiment of the utility model includes a frame 1 and a vertical partition 2 .

Wherein, the frame 1 is used to surround a cavity, and the vertical partition 2 is used to separate a grid for holding printed matter in the cavity, and the vertical partition 2 is arranged in the frame 1 and is connected with the two sides of the frame 1. The two side walls are parallel, and the distance between the vertical partition 2 and the two side walls of the frame 1 is adjustable.

Compared with the prior art, the bookcase provided by the embodiment of the utility model can adjust the distance between the vertical partition 2 and the two side walls of the frame 1 during use, so that two adjacent vertical partitions 2 or vertical The partition 2 cooperates with one of the side walls of the frame 1 to clamp the printed matter, forming an effective support for it, avoiding its toppling or torsion deformation, thereby avoiding the formation of wrinkles, creases or damage on the printed matter, so as to achieve better preservation of the printed matter the goal of.

The frame 1 can adopt various structures. In the embodiment of the present invention, as shown in FIG. 1 , the frame 1 is surrounded by two side plates, a top plate and a bottom plate to form a closed structure with two sides open.

In order to be able to push the vertical partition 2 to move and fix it at a predetermined position, in the embodiment of the utility model, please refer to FIG. The structural diagram of the drive assembly, the bookcase also includes a first drive assembly for driving the vertical partition 2 to move, the first drive assembly includes a first screw 8 rotatably arranged on the side wall of the frame 1, vertically The partition plate 2 is provided with a threaded hole, and the cooperation of the first screw mandrel 8 with the threaded hole can convert the rotary motion of the screw mandrel into a linear motion of the vertical partition plate 2 along the screw shaft axis, so that when the first screw mandrel 8 rotates At this time, the vertical partition 2 is pushed to move by cooperating with the threaded hole on the vertical partition 2, and the vertical partition 2 will not move in the opposite direction when being squeezed by the printed matter, resulting in the phenomenon that the printed matter cannot be clamped.

In order to facilitate operation, the driving end of the first screw rod 8 is also provided with a hexagonal knob 9 .

In the common bookcase, a horizontal partition 3 is usually arranged to layer the cavity in the frame 1. Therefore, in the embodiment of the utility model, a horizontal partition 3 is also provided in the frame 1, and in order not to make the horizontal partition The plate 3 affects the movement of the vertical partition 2. The vertical partition 2 is provided with a first through slot 8a for the horizontal partition 3 to pass through. The horizontal partition 3 passes through the slot and its two ends are respectively connected to the frame 1. The two side walls are connected.

Whether the first screw mandrel 8 is located above the horizontal partition 3 or is arranged below the horizontal partition 3, it may affect the placement of the printed matter, and it is easy to damage the printed matter when rotating, which is unfavorable for preservation and unattractive. Therefore, in this practical In the new embodiment, the horizontal partition 3 includes an upper board 31 and a lower board 32 arranged in parallel, and the vertical partition 2 is provided with two first through grooves 8a, and the upper board 31 and the lower board 32 respectively pass through the two second slots. A through groove 8a, the first threaded mandrel 8 is located in the interlayer between the upper plate 31 and the lower plate 32, by arranging the first threaded mandrel 8 in the interlayer of the horizontal partition 3, the appearance can be beautified, and the second threaded mandrel can also be avoided. The thread rod 8 damages the printed matter when rotating, and plays the role of protecting the printed matter.

Due to the different opening sizes of the printed matter, the distance between adjacent horizontal partitions 3, or the distance between the horizontal partition 3 and the top wall or bottom wall of the frame 1 may not be able to meet the requirements of larger printed matter, and if In order to hold small printed matter, it will lead to waste of space. Therefore, in the embodiment of the present utility model, the bookcase also includes a second drive assembly for driving the horizontal partition 3 to move up and down along the width direction of the first through slot 8a. , the second drive assembly includes a second screw rod and a first threaded sleeve cooperating with the second screw rod, the top wall of the frame 1 and the horizontal partition 3 are provided with slide grooves, and the first end of the second screw rod can slide is arranged in the chute of the top wall of the frame 1 and fixed axially relative to the frame 1, the second end is slidably arranged in the chute of the horizontal partition 3 and fixed axially and circumferentially relative to the horizontal partition 3 A screw fits. In the manufacturing process, the width of the first through groove 8a can be made greater than the thickness of the horizontal partition 3, leaving room for the horizontal partition 3 to move, and slide grooves are provided on the top wall of the horizontal partition 3 and the frame 1 , so that when the vertical partition 2 moves, the second screw and the first threaded sleeve will not interfere with the vertical partition 2, and by rotating the second screw, the horizontal partition 3 can be lifted or lowered, thereby The distance between the adjacent horizontal partitions 3 or the distance between the horizontal partitions 3 and the top wall or bottom wall of the frame 1 is fine-tuned to make full use of the space in the bookcase and store more printed matter.

To further optimize the above-mentioned technical solution, in the embodiment of the present utility model, the vertical partition 2 includes a left side plate and a right side plate, and the second screw rod and the first screw sleeve are located in the interlayer between the left side plate and the right side plate In this way, the second screw rod and the first screw sleeve can be hidden, which not only beautifies the appearance, but also prevents the second screw rod from damaging the printed matter.

In actual use, especially in the family environment, the space is relatively narrow. In addition to bookcases, office furniture such as desks and chairs should be placed, which will occupy a large space and make the small indoor space even more crowded. Therefore, in the embodiment of the present invention, in order to solve the above problems, as shown in Figure 1 and Figure 2, the bookcase also includes a box body 4, the frame 1 is arranged on the top of the box body 4, and the side wall bottom of the box body 4 is opened There is a first storage tank, and a lift chair 6 is arranged in the first storage tank. Please refer to FIG. 4 . FIG. , the first lifting mechanism 61 and the cushion board 63, wherein, one end of the first bracket 62 is rotatably arranged in the first container, and the other end is a free end and can be turned out from the first container; the first lifting The bottom end of the mechanism 61 is arranged on the first bracket 62 ; the cushion board 63 is fixedly connected to the top end of the first lifting mechanism 61 .

Lift table 5 can also be set in the first container, and lift table 5 and lift chair 6 can be respectively arranged at the two ends of the first container, but in this case, it is easy to cause lift table 5 and lift chair 6 to unfold. The distance between the rear is relatively large, and when the length of the bookcase is small, the length of the upper surface of the lift table 5 and the lift chair 6 is relatively small, which is inconvenient to use.

In order to solve the above problems, in the embodiment of the present utility model, the bottom of the side wall of the box body 4 is also provided with a second container, and the second container can be set above the first container, or can be opened in the first container Below, in the embodiment shown in Figure 1 and Figure 2, the second container is opened above the first container, and the second container is provided with a lifting table 5, please refer to Figure 5, Figure 5 is the utility model The structure diagram of the lift table in the bookcase provided by the new embodiment, the lift table 5 includes a second bracket 51, a second lifting mechanism 52 and a desktop board 53, wherein one end of the second bracket 51 is rotatably arranged on the second In the container, the other end is a free end and can be turned out from the second container; the bottom end of the second elevating mechanism 52 is arranged on the second bracket 51; .

Because the width of the bookcase is usually small, if the width of the table top 53 is consistent with the depth of the second container, the table top 53 will be too narrow and the effect will be limited. Therefore, in the embodiment of the present invention, the table top 53 has a folding structure. It includes a main board 531 and two folding plates 532 respectively hinged on both sides of the main board 531, and the sum of the widths of the two folding plates 532 is not greater than the width of the main board 531, so that when not in use, the two folding plates 532 can be upwardly Fold it so that it is buckled on the upper surface of the main board 531, so that the lifting table 5 can be folded up. When in use, if the width cannot meet the usage requirements, you can open the two folding boards 532 so that they can be spliced with the main board 531 into a complete desktop.

Since the lift chair 6 is arranged in the first container, after unfolding, there will be a certain gap between the bottom of the first bracket 62 and the ground. When the user sits on it, the bookcase will easily tilt and the printed matter will slip. Therefore, , in this utility model embodiment, the bottom of the free end of the first bracket 62 is provided with a groove, and a foldable leg is arranged in the groove, and the bottom surface of the unfolded leg is on the same plane as the bottom surface of the box body 4 . One or more legs can be provided. In this way, when the lift chair 6 is unfolded, the legs can be expanded to support the lift chair 6 to prevent the bookcase from tilting. When the lift chair 6 needs to be folded, the legs can also be folded. So that the lift chair 6 can smoothly enter the first container, and further, the bottom of the second bracket 51 can also be provided with foldable legs.

The first lifting mechanism 61 is used to lift the cushion board 63 to a required height and can keep it at this height. In the embodiment of the utility model, the first lifting mechanism 61 includes two upper hinged arms whose middle parts are hinged to each other. 611, two lower hinged arms 612 and screw rods 614 whose middle parts are hinged to each other, the lower ends of the two upper hinged arms 611 and the upper ends of the two lower hinged arms 612 are hinged by hinge shafts 613 in one-to-one correspondence, and the screw rods 614 are hinged to the two hinged arms respectively. The threaded through hole on the shaft 613 is matched, and the upper end of one of the two upper hinged arms 611 is hinged with the cushion plate 63, and the upper end of the other is slidably connected with the cushion plate 63, and the lower end of one of the two lower hinged arms 612 is connected with the second hinged arm 612. One bracket 62 is hinged, and the lower end of the other is slidingly connected with the first bracket 62. The height of the cushion plate 63 can be adjusted by rotating the screw rod 614, and when the thread lead angle between the screw rod 614 and the two threaded through holes is smaller than the screw pair When the equivalent friction angle is , self-locking can be realized, so that the first lifting mechanism 61 can bear a relatively large weight.

There are multiple modes of sliding connection between the upper hinged arm 611 and the cushion board 63 and between the lower hinged arm 612 and the first bracket 62, such as on the lower surface of the cushion board 63 and the upper surface of the first bracket 62. Offer a slideway, the upper end of the upper hinge arm 611 and the lower end of the lower hinge arm 612 are all hinged sliders, the upper hinge arm 611 slides with the slideway on the lower surface of the cushion plate 63 through the slider, and the lower hinge arm 612 is connected with the slider by the slider. The slideways on the upper surface of the first bracket 62 are slidably fitted. In the embodiment of the present invention, as shown in FIG. There is a stopper 615 with a chute, the upper end of the upper articulated arm 611 and the lower end of the lower articulated arm 612 are hinged with a square slider 616, and the direction slider is slidably matched with the chute on the stopper 615.

In the embodiment of the present utility model, the second lifting mechanism 52 is basically the same as the first lifting mechanism 61 .

The bookcase is usually placed against the wall, so that it is easy to hit the wall when placing the printed matter in the above-mentioned frame 1, leaving marks on the wall, and when the bookcase is not used for a long time, dust is easy to fall on the bookcase and the printed matter in the bookcase , in order to solve the above problems, in the embodiment of the present utility model, the box body 4 is provided with a sealing assembly 10, please refer to Fig. 6, which is a schematic structural diagram of the sealing assembly in the bookcase provided by the embodiment of the present utility model The blocking assembly 10 includes a baffle 101 and a third drive assembly 102 that drives the baffle 101 up and down, and the third drive assembly 102 can drive the baffle 101 to protrude from the second through slot on the top of the box body 4 to block the frame 1 . The above-mentioned sealing assembly 10 can be provided with two or more. In the embodiment shown in FIG. The baffle 101 on the side close to the wall can be raised to prevent printed matter from leaning against the wall and leaving traces on the wall. When the bookcase is not used for a long time, the baffle 101 on the side away from the wall can be raised , the whole frame 1 is sealed to prevent dust from falling into the inside of the frame 1 and on the printed matter.

In the embodiment of the present utility model, as shown in the figure, the third driving assembly 102 includes a third threaded rod 1021 vertically arranged in the box body 4 and a second screw sleeve 1022 fixedly connected to the side of the baffle plate 101 , the third threaded rod 1021 cooperates with the second screw sleeve 1022 to drive the baffle plate 101 up and down.

Since the third screw rod 1021 is vertically arranged, its driving end cannot be arranged at the bottom of the box body 4, but being arranged at the top of the box body 4 will take up space and affect the placement of the frame 1. Therefore, in the embodiment of the present invention The third driving assembly 102 also includes a first bevel gear 1023 arranged at the end of the third screw rod 1021 and an upper second bevel gear 1024 rotatably arranged on the side wall of the box body 4, the first bevel gear 1023 and the second bevel gear 1023 The two bevel gears 1024 mesh, and the second bevel gear 1024 is connected with the handle 7 through the transmission shaft 11. Through the two bevel gears, the rotation in the horizontal direction can be converted into the rotation in the vertical direction, which is convenient for operation without affecting Placement of frame 1.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (13)

1. a kind of bookcase, it is characterised in that including：

Framework (1)；

It is arranged in the framework (1) and the vertical clapboard (2) parallel with two side walls of the framework (1), and it is described vertical The spacing of dividing plate (2) and two side walls of the framework (1) is adjustable.

2. bookcase according to claim 1, it is characterised in that also including for driving the vertical clapboard (2) movement First drive component, first drive component includes the first screw mandrel being rotatablely arranged on the side wall of the framework (1) (8) screwed hole, is provided with the vertical clapboard (2), first screw mandrel (8) coordinates with the screwed hole can be by the silk The convert rotational motion of bar is linear motion of the vertical clapboard (2) along screw mandrel axial direction.

3. bookcase according to claim 2, it is characterised in that be additionally provided with horizontal baffle (3), institute in the framework (1) The first groove (8a) for being provided with vertical clapboard (2) and being available for the horizontal baffle (3) to pass through is stated, the horizontal baffle (3) is worn Cross the groove and its two ends is connected with two side walls of the framework (1) respectively.

4. bookcase according to claim 3, it is characterised in that the horizontal baffle (3) includes the top plate be arrangeding in parallel (31) two first grooves (8a), the top plate (31) and lower plywood (32), are offered on the vertical clapboard (2) And the lower plywood (32) is each passed through two first grooves (8a), first screw mandrel (8) is located at the top plate (31) and in the interlayer between the lower plywood (32).

5. bookcase according to claim 3, it is characterised in that also including for driving the horizontal baffle (3) along described First groove (8a) width lifting the second drive component, second drive component include the second screw mandrel and with it is described Chute is provided with the first swivel nut that second screw mandrel coordinates, the roof and the horizontal baffle (3) of the framework (1), institute The first end for stating the second screw mandrel is slidably disposed in the chute of the framework (1) roof and axially with respect to the framework (1) it is fixed, the second end and be slideably positioned in the horizontal baffle (3) chute it is interior and axial and it is circumferentially opposed in the level every Fixed first swivel nut of plate (3) coordinates.

6. bookcase according to claim 5, it is characterised in that the vertical clapboard (2) includes left plate and right plate, Second screw mandrel and first swivel nut are respectively positioned in the interlayer between the left plate and the right plate.

7. bookcase according to claim 1, it is characterised in that also including casing (4), the framework (1) is arranged at described The top of casing (4), the sidewall bottom of the casing (4), which is offered in the first tank, first tank, is provided with chair lift (6), the chair lift (6) includes：

First bracket (62), one end is rotatablely arranged in first tank, and the other end is free end and can be described in Produced in first tank；

First elevating mechanism (61), bottom is arranged on first bracket (62)；

Seating pad (63), is fixed on the top of first elevating mechanism (61).

8. bookcase according to claim 7, it is characterised in that the bottom of the free end of first bracket (62) is provided with Folding leg is provided with groove, the groove, the bottom surface after the leg expansion is in the bottom surface of the casing (4) On same plane.

9. bookcase according to claim 7, it is characterised in that it is mutual that first elevating mechanism (61) includes two middle parts Lower articulated jib (612) and screw rod (614) that the upper articulated jib (611) that is hinged, two middle parts are hinged, two upper hinges The lower end and the upper end of two lower articulated jibs (612) for connecing arm (611) are hinged by jointed shaft (613) correspondingly, institute State screw rod (614) respectively with the tapped through hole on two jointed shafts (613) to coordinate, in two upper articulated jibs (611) The upper end of one be hinged with the seating pad (63), another upper end is slidably connected with the seating pad (63), two institutes The lower end of one stated in lower articulated jib (612) is hinged with first bracket (62), another lower end and first support Frame (62) is slidably connected.

10. bookcase according to claim 7, it is characterised in that the sidewall bottom of the casing (4) is further opened with the second appearance Same table (5) is provided with groove, second tank, the same table (5) includes：

Second bracket (51), one end is rotatablely arranged in second tank, and the other end is free end and can be described in Produced in second tank；

Second elevating mechanism (52), bottom is arranged on second bracket (51)；

Desktop (53), is fixed on the top of second elevating mechanism (52).

11. bookcase according to claim 7, it is characterised in that be provided with block component (10), institute in the casing (4) Threeth drive component (102) of the block component (10) including baffle plate (101) and driving baffle plate (101) lifting is stated, it is described 3rd drive component (102) can drive the baffle plate (101) to be stretched out from the second groove at the top of the casing (4) to described Framework (1) carries out block.

12. bookcase according to claim 11, it is characterised in that the 3rd drive component (102) includes being vertically arranged In the 3rd screw mandrel (1021) in the casing (4) and the second swivel nut being fixed on the side of the baffle plate (101) (1022), the 3rd screw mandrel (1021) coordinates the driving baffle plate (101) to lift with second swivel nut (1022).

13. bookcase according to claim 12, it is characterised in that the 3rd drive component (102) also includes being arranged at The first bevel gear (1023) of 3rd screw mandrel (1021) end and it is rotatablely arranged on the wall of the casing (4) side Upper second bevel gear (1024), the first bevel gear (1023) is engaged with the second bevel gear (1024), and described second Handle (7) is connected with by power transmission shaft (11) on bevel gear (1024).