Folding bookshelf based on hydraulic device

Abstract

The utility model relates to the technical field of bookshelves, in particular to a folding bookshelf based on a hydraulic device, a lifting mechanism comprises a lower frame, an upper frame and a lifting assembly, and the lifting assembly is movably connected with the lower frame and the upper frame; a supporting bottom plate is fixedly arranged at the top of the upper frame, a vertical plate groove is formed in the top of the supporting bottom plate, vertical plates are symmetrically arranged in the vertical plate groove, and one end of each vertical plate is movably connected with the supporting bottom plate; a newspaper board groove is further formed in the top of the supporting bottom plate, a newspaper board is arranged in the newspaper board groove, and the side, close to the vertical plate groove, of the newspaper board is movably connected with the supporting bottom plate. A supporting assembly is arranged at the bottom of the newspaper board. The height of the device can be adjusted conveniently, and the device can flexibly adapt to the space environment and actual requirements; meanwhile, the multifunctional bookshelf can be used as a bookshelf, a desk, a flower and plant placing frame and a newspaper and periodical frame, flexible function switching can be achieved according to needs, and the application range of the bookshelf is widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to bookshelf technical field, concretely relates to a folding bookshelf based on hydraulic device. BACKGROUND

[0002] Bookshelf is the appliance that is used to store books, it has multiple forms and structures, including book cabinet, book cupboard, book partition and different names. Bookshelf is the common appliance in life, not only is limited to the study use, also is suitable for being placed in the living room and so on place, can increase the elegant and atmosphere of atmosphere of the room. In addition, the material quality of bookshelf is various, including wood, metal, plastic and so on, when selecting, the practicability, the aesthetic property and the durability of bookshelf need to be considered. The bookshelf of prior art is assembled by transporting accessories to the user site, and a large amount of manpower and time is needed to disassemble the bookshelf after the bookshelf is fixed, and the height of the bookshelf is not easy to adjust, and the height cannot be adjusted according to the space and actual demand, and the adjustment is difficult in the later period, and there is the phenomenon of insufficient utilization or waste; meanwhile, after the bookshelf is installed, the main structure of the bookshelf is fixed, and flexible function switching cannot be realized according to the need, and there is the defect of single function. SUMMARY

[0003] The utility model discloses to solve the problem that the bookshelf of prior art is difficult to adjust the height and single function, provide a folding bookshelf based on hydraulic device, this lifting bookshelf is convenient for adjusting the height, can be flexibly adapted to the space environment and actual demand, and can be used as a bookshelf, also can be used as a desk, flower and plant placing rack and newspaper and periodical rack, can realize flexible function switching according to the need, improve the application range of bookshelf.

[0004] In order to realize the above-mentioned purpose, the technical scheme of the utility model is: a folding bookshelf based on hydraulic device, including lifting mechanism, the lifting mechanism includes lower frame, upper frame and lifting assembly, the lifting assembly is movably connected with the lower frame and the upper frame, and the lifting assembly is located between the lower frame and the upper frame. The height of the upper frame can be adjusted by the lifting assembly, so as to adjust the height of the bookshelf, so as to flexibly adapt to the space environment and actual demand.

[0005] The upper frame is fixedly provided with a supporting bottom plate at the top, a vertical plate slot is opened at the top of the supporting bottom plate, vertical plates are symmetrically arranged in the vertical plate slot, and one end of the vertical plate is movably connected with the supporting bottom plate. The state of the vertical plate can be adjusted, and the book can be placed in the vertical plate slot when the vertical plate is in the vertical state, and the vertical plate is used for limiting the book to be used as a bookshelf.

[0006] The top of the support bottom plate is also provided with a newspaper and magazine plate slot, the inside of the newspaper and magazine plate slot is provided with a newspaper and magazine plate, and the side close to the vertical plate slot of the newspaper and magazine plate is movably connected with the support bottom plate; and the bottom of the newspaper and magazine plate is provided with a supporting assembly. The newspaper and magazine plate can be supported by the supporting assembly to be in an inclined state, so that the bookshelf is used as a newspaper and magazine rack.

[0007] The top of the vertical plate and the newspaper and magazine plate is provided with a circular slot one, and the circular slot one is provided with a placing slot one. The flower and plant pot can be placed in the placing slot one, so that the bookshelf is used as a flower and plant placing rack.

[0008] Further, the inner side of the longitudinal beam of the lower frame is fixedly provided with a sliding rail one, and the inner side of the longitudinal beam of the upper frame is fixedly provided with a sliding rail two; the lifting assembly comprises a U-shaped frame one, a U-shaped frame two, a push-pull oil cylinder and a lifting oil cylinder, the U-shaped frame one and the U-shaped frame two are staggered arranged between the lower frame and the upper frame, the middle part of the U-shaped frame two is provided with a transverse shaft, and the U-shaped frame one and the U-shaped frame two are rotationally connected with the transverse shaft. The transverse shaft is used so that the U-shaped frame one and the U-shaped frame two rotate relative to the transverse shaft.

[0009] Further, the two sides of the lower part of the U-shaped frame one are fixedly provided with sliding blocks one, the sliding blocks one are slidingly arranged on the sliding rail one, and the two ends of the upper part of the U-shaped frame one are hingedly connected with the upper frame; the two sides of the lower part of the U-shaped frame two are rotationally connected with the lower frame, the two outer sides of the upper part of the U-shaped frame two are fixedly provided with sliding blocks two, and the sliding blocks two are slidingly arranged on the sliding rail two. The purpose is to make the U-shaped frame one and the U-shaped frame two do unfolding movement or folding movement, so as to adjust the height of the upper frame.

[0010] Further, the cross beams of the U-shaped frame one and the U-shaped frame two are fixedly provided with hinged seats one, the tail end of the push-pull oil cylinder and the piston rod are hingedly connected with the hinged seats one on the U-shaped frame two and the U-shaped frame one respectively, the cross beams of the U-shaped frame one and the transverse shaft are fixedly provided with hinged seats two, and the tail end of the lifting oil cylinder and the piston rod are hingedly connected with the hinged seats two on the U-shaped frame one and the transverse shaft respectively. The push-pull oil cylinder and the lifting oil cylinder can drive the U-shaped frame one and the U-shaped frame two to do unfolding movement or folding movement.

[0011] Further, one end of the vertical plate is provided with a hinge one, and the vertical plate is connected with the support bottom plate through the hinge one. The hinge one is used to rotate the vertical plate and change the state of the vertical plate.

[0012] Further, the top of the two ends of the two vertical plates close to each other is provided with an arc-shaped groove, and the arc-shaped groove is provided with an arc-shaped recess; the arc-shaped grooves on the two vertical plates form a circular groove two, and the arc-shaped recesses on the two vertical plates form a placing groove two; the circular groove one and the circular groove two are detachably provided with a blocking disc matched with the circular groove one and the circular groove two. The blocking disc is used for closing the placing groove one and the placing groove two, and the blocking disc in the circular groove two also serves to fix the two vertical plates.

[0013] Further, the length of the newspaper and magazine board groove is greater than the length of the vertical plate groove; the newspaper and magazine board is provided with a hinge two, and the newspaper and magazine board is connected with the support bottom plate through the hinge two. The hinge two is used for rotating the newspaper and magazine board and changing the state of the newspaper and magazine board.

[0014] Further, the bottom of the newspaper and magazine board is provided with a hidden groove, and the support assembly is arranged in the hidden groove; the support assembly comprises a fixed shaft, a support rod and a rotating sleeve; the fixed shaft is fixedly arranged in the hidden groove; one end of the support rod is fixedly provided with the rotating sleeve; and the rotating sleeve is rotatably arranged on the fixed shaft. The support rod is used for supporting the newspaper and magazine board to make the newspaper and magazine board in an inclined state, so that the bookshelf can be used as a newspaper and magazine stand, and the newspaper and magazine and the like can be placed on the newspaper and magazine board in the inclined state.

[0015] Further, the lower frame and the upper frame are provided with L-shaped plates, and the upper surfaces of the L-shaped plates are provided with the vertical plates which are movably connected with the L-shaped plates.

[0016] Through the above technical scheme, the bookshelf has the following beneficial effects:

[0017] The bookshelf has the advantages of reasonable structure, good use effect, adjustable height, flexible adaptation to space environment and actual demand, use as a bookshelf, desk, flower and plant placing rack and newspaper and magazine stand, flexible function switching, improved application range, high practicability and solved single function of the existing bookshelf.

[0018] The push-pull oil cylinder and the lifting oil cylinder of the lifting assembly can drive the U-shaped frame one and the U-shaped frame two to perform unfolding movement or folding movement, so as to adjust the height of the upper frame, adjust the height of the bookshelf, and flexibly adapt to the space environment and actual demand.

[0019] The vertical plates are arranged in the vertical plate grooves, the newspaper and magazine board is arranged in the newspaper and magazine board groove, and the blocking disc is arranged in the circular groove one and the circular groove two; and the bookshelf can be used as a desk at this time; and the blocking disc in the circular groove two also serves to fix the two vertical plates.

[0020] The circular groove one and the circular groove two on the vertical plate and the newspaper and periodical board are provided with the blocking round plate, when the blocking round plate is disassembled, the bookshelf can be used as a flower and plant placing rack, the flower and plant pots can be placed in the placing groove one and the placing groove two, and the placing groove one and the placing groove two provide the placing positions for the flower and plant pots and limit the flower and plant pots.

[0021] The newspaper and periodical board is located in the newspaper and periodical board groove, and the blocking round plate is installed in the circular groove one, the two vertical plates can be rotated through the hinges one on the two vertical plates, so that the vertical plates are in the vertical state, and the bookshelf is used at the moment; the books can be placed in the vertical plate groove, and the two vertical plates limit the books.

[0022] The vertical plate is located in the vertical plate groove, and the blocking round plate is installed in the circular groove one and the circular groove two; the newspaper and periodical board is supported by the supporting assembly, so that the newspaper and periodical board is in the inclined state, and the bookshelf is used as a newspaper and periodical rack at the moment, the supporting rod of the supporting assembly supports the newspaper and periodical board, the supporting rod is rotated through the cooperation of the rotating sleeve and the fixed shaft, and the supporting assembly can be hidden in the hidden groove, so that the supporting assembly does not interfere with the placement of the newspaper and periodical board in the newspaper and periodical board groove. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structure schematic diagram of the bookshelf state of the utility model Figure 1 ;

[0024] Figure 2 It is a structure schematic diagram of the bookshelf state of the utility model Figure 2 ;

[0025] Figure 3 It is a structure schematic diagram of the bookshelf state of the utility model Figure 3 ;

[0026] Figure 4 It is a structure schematic diagram of the flower and plant placing rack state of the utility model

[0027] Figure 5 It is a structure schematic diagram of the bookshelf state of the utility model

[0028] Figure 6 It is a structure schematic diagram of the newspaper and periodical rack state of the utility model Figure 1 ;

[0029] Figure 7 It is a structure schematic diagram of the newspaper and periodical rack state of the utility model Figure 2 ;

[0030] Figure 8 It is a structure schematic diagram of the lifting mechanism of the utility model

[0031] Figure 9It is the structure schematic view of the newspaper and magazine board of the utility model;

[0032] Figure 10 It is Figure 9 The enlarged structure schematic view of A in the middle;

[0033] Figure 11 It is the state structure schematic view of the bookshelf of the utility model;

[0034] Figure 12 It is the use state structure schematic view of the utility model.

[0035] In the drawing, 1 is a lower frame, 2 is a sliding rail one, 3 is an upper frame, 4 is a sliding rail two, 5 is a U-shaped frame one, 6 is a U-shaped frame two, 7 is a hinged seat one, 8 is a push-pull oil cylinder, 9 is a horizontal shaft, 10 is a hinged seat two, 11 is a lifting oil cylinder, 12 is a supporting bottom plate, 13 is a vertical plate groove, 14 is a vertical plate, 15 is a hinge one, 16 is a circular groove one, 17 is a placing groove one, 18 is an arc-shaped groove, 19 is an arc-shaped recess, 20 is a newspaper and magazine board groove, 21 is a newspaper and magazine board, 22 is a hinge two, 23 is a blocking round plate, 24 is a hidden groove, 25 is a fixing shaft, 26 is a supporting rod, 27 is a rotating sleeve, and 28 is an L-shaped plate. DETAILED DESCRIPTION

[0036] The utility model will be further described below in combination with the drawings and specific embodiments:

[0037] Embodiment 1:

[0038] As Figures 1-10 Indicated, a folding bookshelf based on hydraulic device, including lifting mechanism, the lifting mechanism includes lower frame 1, upper frame 3 and lifting assembly, the lifting assembly with lower frame 1 and upper frame 3 are movably connected, and the lifting assembly is located between the lower frame 1 and the upper frame 3.In this embodiment, lower frame 1 and upper frame 3 are installed in correspondence with up and down, and the height of upper frame 3 can be adjusted by lifting assembly, so as to reach the purpose of adjusting the height of the bookshelf itself.

[0039] The upper frame 3 is provided with a support bottom plate 12 at the top, the top of the support bottom plate 12 is provided with a vertical plate slot 13, the inside of the vertical plate slot 13 is symmetrically provided with a vertical plate 14, one end of the vertical plate 14 is movably connected with the support bottom plate 12. In the embodiment, the support bottom plate 12 is bolted with the upper frame 3, the number of the vertical plate 14 is two, when the vertical plate 14 is located in the vertical plate slot 13, the upper surface of the vertical plate 14 is in the same horizontal plane with the upper surface of the support bottom plate 12; wherein the state of the vertical plate 14 can be adjusted, when the vertical plate 14 is in the horizontal state, the bookshelf can be used as a desk or a newspaper stand, and when the vertical plate 14 is in the horizontal state, the bookshelf is used as a bookshelf, the books are vertically placed in the vertical plate slot 13, and the two vertical plates 14 limit the books to avoid the phenomenon of book falling.

[0040] The top of the support bottom plate 12 is also provided with a newspaper plate slot 20, the inside of the newspaper plate slot 20 is provided with a newspaper plate 21, one side of the newspaper plate 21 close to the vertical plate slot 13 is movably connected with the support bottom plate 12; the bottom of the newspaper plate 21 is provided with a support assembly. In the embodiment, when the newspaper plate 21 is located in the newspaper plate slot 20, the upper surface of the newspaper plate 21 is in the same horizontal plane with the upper surface of the support bottom plate 12; the newspaper plate slot 20 is spaced apart from the vertical plate slot 13, the newspaper plate 21 can be supported by the support assembly to be in an inclined state, at this time, the bookshelf can be used as a newspaper stand, and newspapers, magazines and the like can be placed on the newspaper plate 21 in the inclined state.

[0041] The top of the vertical plate 14 and the newspaper plate 21 is provided with a circular slot 16, and the circular slot 16 is provided with a placing slot 17. In the embodiment, one circular slot 16 and one placing slot 17 are provided on each vertical plate 14, and three circular slots 16 and three placing slots 17 are provided on the newspaper plate 21, wherein the diameter of the circular slot 16 is greater than the diameter of the placing slot 17, when the vertical plate 14 and the newspaper plate 21 are in the horizontal state, the flower and plant pots can be placed in the placing slot 17, the placing slot 17 provides a mounting position for the flower and plant pots and limits the flower and plant pots, at this time, the bookshelf is used as a flower and plant placing rack.

[0042] The inner side of the longitudinal beam of the lower frame 1 is fixedly provided with a slide rail one 2, and the inner side of the longitudinal beam of the upper frame 3 is fixedly provided with a slide rail two 4; the lifting assembly comprises a U-shaped frame one 5, a U-shaped frame two 6, a push-pull oil cylinder 8 and a lifting oil cylinder 11, the U-shaped frame one 5 and the U-shaped frame two 6 are staggered and arranged between the lower frame 1 and the upper frame 3, the middle part of the U-shaped frame two 6 is provided with a transverse shaft 9, and the U-shaped frame one 5 and the U-shaped frame two 6 are rotationally connected with the transverse shaft 9. In the embodiment, the two ends of the transverse shaft 9 are both provided with a pin shaft, and the two ends of the transverse shaft 9 are rotationally connected with the longitudinal beams of the U-shaped frame one 5 and the U-shaped frame two 6 through the pin shafts, so that the U-shaped frame one 5 and the U-shaped frame two 6 can be unfolded or folded, thereby avoiding adjusting the height of the upper frame 3 and achieving the effect of conveniently adjusting the height of the bookshelf.

[0043] The lower sides of the lower part of the U-shaped frame one 5 are both fixedly provided with a slide block one, the slide block one is slidingly arranged on the slide rail one 2, and the upper two ends of the U-shaped frame one 5 are hingedly connected with the upper frame 3; the lower sides of the lower part of the U-shaped frame two 6 are both rotationally connected with the lower frame 1, the outer sides of the upper two ends of the U-shaped frame two 6 are both fixedly provided with a slide block two, and the slide block two is slidingly arranged on the slide rail two 4. In the embodiment, the lower part of the U-shaped frame one 5 slides on the lower frame 1 through the cooperation of the slide block one and the slide rail one 2, and the upper part of the U-shaped frame two 6 slides on the upper frame 3 through the cooperation of the slide block two and the slide rail two 4, so that the U-shaped frame one 5 and the U-shaped frame two 6 can be unfolded or folded.

[0044] The cross beams of the U-shaped frame one 5 and the U-shaped frame two 6 are both fixedly provided with a hinge seat one 7, the tail end of the push-pull oil cylinder 8 and the piston rod are respectively hingedly connected with the hinge seat one 7 on the U-shaped frame two 6 and the U-shaped frame one 5, and the cross beams of the U-shaped frame one 5 and the transverse shaft 9 are both fixedly provided with a hinge seat two 10, and the tail end of the lifting oil cylinder 11 and the piston rod are respectively hingedly connected with the hinge seat two 10 on the U-shaped frame one 5 and the transverse shaft 9. In the embodiment, the lifting oil cylinder 11 and the push-pull oil cylinder 8 are opened, the piston rod of the lifting oil cylinder 11 is retracted, the piston rod of the push-pull oil cylinder 8 is extended, the U-shaped frame one 5 and the U-shaped frame two 6 are folded, the piston rod of the lifting oil cylinder 11 is extended, the piston rod of the push-pull oil cylinder 8 is retracted, the U-shaped frame one 5 and the U-shaped frame two 6 are unfolded.

[0045] One end of the vertical plate 14 is provided with a hinge one 15, and the vertical plate 14 is connected with the supporting bottom plate 12 through the hinge one 15. In the embodiment, the number of the hinge one 15 on each vertical plate 14 is two, and the vertical plate 14 is conveniently rotated under the action of the hinge one 15, the state of the vertical plate 14 is changed, and the vertical plate 14 is in a horizontal state or a vertical state.

[0046] Two top ends of the two vertical plates 14 are provided with arc-shaped grooves 18, and arc-shaped recesses 19 are arranged at the arc-shaped grooves 18; the arc-shaped grooves 18 on the two vertical plates 14 form a circular groove two, and the arc-shaped recesses 19 on the two vertical plates 14 form a placing groove two; the circular groove one 16 and the circular groove two are detachably provided with blocking circular plates 23 matched with the circular groove one 16 and the circular groove two. In the embodiment, the blocking circular plates 23 block the placing groove one 17 and the placing groove two; the blocking circular plates 23 in the circular groove two also fix the two vertical plates 14; the flower pots can be placed in the placing groove one 17 and the placing groove two, so that the bookshelf is used as a pot placing rack; when the bookshelf is not used as a pot placing rack, the blocking circular plates 23 are bolted in the circular groove one 16 and the circular groove two, respectively.

[0047] The length of the newspaper board groove 20 is greater than the length of the vertical plate groove 13; the newspaper board 21 is provided with hinges two 22, and the newspaper board 21 is connected with the supporting bottom plate 12 through the hinges two 22. In the embodiment, the number of the hinges two 22 on the newspaper board 21 is three, and the newspaper board 21 is conveniently rotated under the action of the hinges two 22, so that the state of the newspaper board 21 is changed to be in a horizontal state or an inclined state.

[0048] The bottom of the newspaper board 21 is provided with hidden grooves 24, and the supporting assembly is arranged in the hidden grooves 24; the supporting assembly comprises a fixed shaft 25, a supporting rod 26 and a rotating sleeve 27; the fixed shaft 25 is fixedly arranged in the hidden groove 24; one end of the supporting rod 26 is fixedly provided with the rotating sleeve 27, and the rotating sleeve 27 is rotatably arranged on the fixed shaft 25. In the embodiment, the number of the hidden grooves 24 and the supporting assembly is two; the supporting rod 26 is rotated through the cooperation of the rotating sleeve 27 and the fixed shaft 25, and the supporting rod 26 supports the newspaper board 21 to make the newspaper board 21 in an inclined state; when the newspaper board 21 is in a horizontal state, the supporting rod is hidden in the hidden groove 24.

[0049] When the height of the bookshelf is adjusted, the lifting oil cylinder 11 and the push-pull oil cylinder 8 are opened, the piston rod of the lifting oil cylinder 11 is retracted, the piston rod of the push-pull oil cylinder 8 is extended, the U-shaped frame one 5 and the U-shaped frame two 6 are folded, the height of the upper frame 3 is lowered, and the height of the bookshelf is lowered; when the piston rod of the lifting oil cylinder 11 is extended and the piston rod of the push-pull oil cylinder 8 is retracted, the U-shaped frame one 5 and the U-shaped frame two 6 are unfolded, the height of the upper frame 3 is increased, and the height of the bookshelf is increased.

[0050] When used as a desk, the upright board 14 is positioned horizontally in the upright board groove 13, and the newspaper board 21 is positioned horizontally in the newspaper board groove 20. The sealing circular plate 23 is bolted to the circular groove 16 and circular groove 2 on the upright board 14 and the newspaper board 21, respectively.

[0051] When used as a plant stand, the upright plate 14 is in a horizontal position in the upright plate groove 13, and the newspaper plate 21 is in a horizontal position in the newspaper plate groove 20. The sealing circular plates 23 located in the circular groove 16 and the circular groove 2 are removed, and then the potted plants are placed in the placement groove 17 and the placement groove 2.

[0052] When used as a bookshelf, the newspaper tray 21 is positioned horizontally in the newspaper tray groove 20. The sealing circular plate 23 located in the circular groove 2 is removed. Then, the two upright plates 14 are rotated by the hinge 15 to make both upright plates 14 vertical. Books can then be placed in the upright plate groove 13 and positioned between the two upright plates 14. The two upright plates 14 limit the books to prevent them from tipping over.

[0053] When used as a newspaper rack, the upright plate 14 is positioned horizontally in the upright plate groove 13, and the sealing circular plate 23 is bolted to the circular groove 16 and circular groove 2 on the upright plate 14 and the newspaper plate 21, respectively. Then, the newspaper plate 21 is rotated by the hinge 22 to make the newspaper plate 21 tilted. Then, the support rod 26 is rotated by the rotating sleeve 27 and the support rod 26 is pressed against the newspaper plate groove 20 on the support base plate 12. The support rod 26 supports the newspaper plate 21, and newspapers, magazines, etc. can then be placed on the tilted newspaper plate 21.

[0054] Example 2:

[0055] like Figures 11-12 As shown, the similarities between Embodiment 2 and Embodiment 1 will not be described in detail. The difference is that both the lower frame 1 and the upper frame 3 are provided with L-shaped plates 28, and the upper surface of the L-shaped plates 28 is also provided with the upright plates 14. The upright plates 14 are movably connected to the L-shaped plates 28. In this embodiment, the L-shaped plates 28 are detachably installed on the front and left sides of the lower frame 1 and the upper frame 3. The vertical and horizontal surfaces of the L-shaped plates 28 are provided with upright plate grooves 13. Two upright plates 14 are symmetrically installed in the upright plate grooves 13. The upright plates 14 are connected to the L-shaped plates 28 by hinges 15. Multiple lifting bookshelves can be stacked side by side as a whole for use as a bookshelf. The L-shaped plates 28 on the lower frame 1 of the lifting bookshelf, the upper lifting bookshelf support base plate 12, and its L-shaped plates 28 provide a place for books. The way the books are placed in the upright plate grooves 13 is the same as in Embodiment 1.

[0056] The above-described embodiments are only preferred embodiments of the utility model, and are not intended to limit the utility model implementation scope, so equivalent changes or modifications made according to the technical solutions described in the utility model patent scope should be included in the utility model application patent scope.

Claims

1. A hydraulic device-based folding bookshelf, characterized by, Including lifting mechanism, lifting mechanism includes lower frame (1), upper frame (3) and lifting assembly, the lifting assembly is movably connected with lower frame (1) and upper frame (3), and the lifting assembly is located between the lower frame (1) and the upper frame (3); The top of the support bottom plate (12) is provided with a vertical plate slot (13), and the inside of the vertical plate slot (13) is symmetrically provided with a vertical plate (14), one end of the vertical plate (14) is movably connected with the support bottom plate (12); The top of the support bottom plate (12) is also provided with a newspaper and magazine plate slot (20), and the inside of the newspaper and magazine plate slot (20) is provided with a newspaper and magazine plate (21), one side of the newspaper and magazine plate (21) close to the vertical plate slot (13) is movably connected with the support bottom plate (12);The bottom of the newspaper and magazine plate (21) is provided with a support assembly;The top of the vertical plate (14) and the newspaper and magazine plate (21) is provided with a circular slot (16), and the circular slot (16) is provided with a placing slot (17).

2. The folding bookshelf based on hydraulic devices according to claim 1, characterized in that, The inside of the longitudinal beam of the lower frame (1) is fixedly provided with a sliding rail one (2), and the inside of the longitudinal beam of the upper frame (3) is fixedly provided with a sliding rail two (4);The lifting assembly includes a U-shaped frame one (5), a U-shaped frame two (6), a push-pull oil cylinder (8) and a lifting oil cylinder (11), the U-shaped frame one (5) and the U-shaped frame two (6) are staggered between the lower frame (1) and the upper frame (3), and the middle part of the U-shaped frame two (6) is provided with a transverse shaft (9), and the U-shaped frame one (5) and the U-shaped frame two (6) are rotatably connected with the transverse shaft (9).

3. A folding book stand based on hydraulic devices according to claim 2, characterized in that, The lower part of the U-shaped frame one (5) is fixedly provided with a sliding block one on both sides, the sliding block one is slidably arranged on the sliding rail one (2), and the upper part of the U-shaped frame one (5) is hingedly connected with the upper frame (3) on both ends;The lower part of the U-shaped frame two (6) is rotatably connected with the lower frame (1) on both sides, and the upper part of the U-shaped frame two (6) is fixedly provided with a sliding block two on both outer sides, and the sliding block two is slidably arranged on the sliding rail two (4).

4. A folding book stand based on hydraulic device according to claim 3, characterized in that, The crossbeam of the U-shaped frame one (5) and the U-shaped frame two (6) is fixedly provided with a hinge seat one (7), and the tail end and the piston rod of the push-pull oil cylinder (8) are hingedly connected with the hinge seat one (7) on the U-shaped frame two (6) and the U-shaped frame one (5) respectively;The crossbeam of the U-shaped frame one (5) and the transverse shaft (9) are fixedly provided with a hinge seat two (10), and the tail end and the piston rod of the lifting oil cylinder (11) are hingedly connected with the hinge seat two (10) on the U-shaped frame one (5) and the transverse shaft (9) respectively.

5. The folding bookshelf based on hydraulic devices according to claim 1, characterized in that, One end of the vertical plate (14) is provided with a hinge one (15), and the vertical plate (14) is connected with the support bottom plate (12) through the hinge one (15).

6. The folding bookshelf based on hydraulic devices according to claim 1, characterized in that, Two said end of the stand plate (14) close to each other top are provided with arc-shaped groove (18), the arc-shaped groove (18) is provided with arc-shaped groove (19), two said stand plate (14) on the arc-shaped groove (18) constitute circular groove two, two said stand plate (14) on the arc-shaped groove (19) constitute the placement groove two;The circular groove one (16) and circular groove two are detachably provided with the blocking round plate (23), the blocking round plate (23) is matched with the circular groove one (16) and circular groove two.

7. The folding bookshelf based on hydraulic devices according to claim 1, characterized in that, The length of the newspaper and magazine board slot (20) is greater than the length of the stand plate slot (13);The newspaper and magazine board (21) is provided with hinge two (22), and the newspaper and magazine board (21) is connected with the supporting bottom plate (12) through the hinge two (22).

8. The hydraulic device-based folding bookshelf of claim 1, wherein, The bottom of the newspaper and magazine board (21) is provided with a hidden groove (24), and the supporting assembly is arranged in the hidden groove (24);The supporting assembly comprises a fixed shaft (25), a supporting rod (26) and a rotating sleeve (27), the fixed shaft (25) is fixedly arranged in the hidden groove (24), one end of the supporting rod (26) is fixedly provided with the rotating sleeve (27), and the rotating sleeve (27) is rotatably arranged on the fixed shaft (25).

9. The hydraulic device based folding bookshelf of claim 1, wherein, The lower frame (1) and the upper frame (3) are provided with L-shaped plates (28), and the upper surfaces of the L-shaped plates (28) are also provided with the stand plates (14), and the stand plates (14) are movably connected with the L-shaped plates (28).

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