CN114557545A - Single desk capable of being inserted with books - Google Patents

Abstract

The invention relates to a desk, in particular to a single desk capable of being inserted with books. The single desk which can be conveniently inserted with books and is not easy to slide down needs to be designed. The utility model provides a can insert single desk of putting books, including fixed under casing, support desktop, sealing bottom plate, crashproof sponge strip, location chassis, lifting support etc. fixed under casing top rigid coupling has the support desktop, and fixed under casing bottom rigid coupling has sealing bottom plate, and support desktop lateral surface rigid coupling has crashproof sponge strip, and the outer left and right sides of fixed under casing symmetry rigid coupling all around has the location chassis, is equipped with lifting support through the bolt dismantlement formula on the chassis of location. According to the invention, the sealing top plate is pulled to swing upwards, then people can insert a book between the two clamping plates, and the limiting idler wheel plays a role in guiding, so that the two clamping plates always move inwards to clamp and limit the book due to the action of the clamping spring, therefore, people can conveniently insert the book, and the book is not easy to slip.

Description

Single desk capable of being inserted with books

Technical Field

The invention relates to a desk, in particular to a single desk capable of being inserted with books.

Background

With the continuous improvement of modern life quality, the requirements and functions of teaching articles are more and more, and students use the most desks in daily life.

Patent application CN210018387U, published as 20200207, discloses a desk convenient for transportation, comprising a desk panel, a desk drawer under the desk panel and four supporting desk legs arranged under the desk drawer, wherein the desk drawer is formed by splicing four boards and the desk panel, the desk panel and the four boards are spliced by adopting a tenon-and-mortise structure, the bottom of each supporting desk leg is provided with a supporting groove, a permanent magnet is arranged on the wall of the supporting groove adjacent to the desk drawer, a moving upright is arranged under the permanent magnet, the top end of the moving upright is attracted and fixed by the permanent magnet, a pressure applying device is connected between the moving uprights, the moving upright is driven by the pressure applying device to move up and down in the supporting groove, the lower end of the moving upright is inserted with an ejection pulley, the ejection pulley extends out of the supporting groove under the driving of the moving upright, the student is convenient to carry by virtue of the ejection pulley, the supporting groove is arranged to accommodate the ejection pulley, the stability of the desk during use is improved. Although the device makes things convenient for the student to carry, books are put on end unstably, and the landing phenomenon often appears, influences the student.

Therefore, a single desk which can be conveniently inserted with books by people and is not easy to slide down needs to be designed to solve the problems in the prior art.

Disclosure of Invention

In order to overcome the defects that the books are unstable in standing and frequently slide off to influence students, the invention provides the single desk which can be used for conveniently inserting the books into people and is not easy to slide off.

The invention is realized by the following technical approaches:

the utility model provides a can insert single desk of putting books, including fixed under casing, support the desktop, sealing bottom plate, anticollision sponge strip, the location chassis, lifting support, remove the chassis, connect the horizontal pole, place the under casing, stop gear and sealing mechanism, fixed under casing top rigid coupling has the support desktop, fixed under casing bottom rigid coupling has sealing bottom plate, it has anticollision sponge strip to support desktop lateral surface rigid coupling, the outer left and right sides of fixed under casing symmetry rigid coupling all around has the location chassis, be equipped with lifting support through the bolt dismantlement formula on the location chassis, lifting support lateral surface rigid coupling has the removal chassis, the rigid coupling has the connection horizontal pole in the middle of the left and right sides removal chassis lower part, the slidingtype is equipped with places the under casing in the fixed under casing, it is equipped with the stop gear who is used for pressing from both sides the book to place the under casing, be equipped with on the support desktop and be used for sealed sealing mechanism.

Further explaining, the limiting mechanism comprises a separating middle plate, an installing bottom block, clamping plates, clamping springs and limiting idler wheels, the separating middle plate is fixedly connected to the middle of the inner side of the placing bottom box, the installing bottom block is fixedly connected to the left side and the right side of the placing bottom box in a front-back symmetrical mode, the installing bottom block is fixedly connected to the left side and the right side of the separating middle plate in an interval mode, the two clamping plates used for clamping books are arranged on the installing bottom block in a hinged mode, the clamping springs are arranged between the inner side faces of the two clamping plates, and the limiting idler wheels are arranged on the inner side of the clamping plates in a rotating mode.

The sealing mechanism comprises a sealing top plate, a fixed middle shaft, a stress block, a limiting shaft and a torsion spring, the fixed middle shaft is rotatably arranged on the left side and the right side of the supporting desktop, the sealing top plate is fixedly connected to the middle of the fixed middle shaft, the limiting shaft is rotatably arranged on the inner side of the middle of the sealing top plate, the stress block for driving is fixedly connected to the middle of the limiting shaft, and the torsion spring is symmetrically wound between the inside of the sealing top plate and the limiting shaft in a front-back mode.

Further, the device also comprises a lifting mechanism which is used for driving the placing bottom box to lift, the lifting mechanism comprises a pressure button, a servo motor, a heat dissipation window, a first slide block, a first reset guide pillar, a first reset spring, a cross sliding frame, a first limit rod, a roller positioning block, a lifting cross rod, a second limit rod, a second slide block, a third limit rod, a driving worm, a driven worm wheel, a positioning screw rod and a positioning sleeve, the pressure button is fixedly connected to the right part of the front side surface of the fixing bottom box, the servo motor is arranged on the rear side of the right part of the sealing bottom plate, the pressure button can control the servo motor, the heat dissipation window which is used for heat dissipation is arranged on the rear side of the servo motor and is fixedly connected to the left and right sides of the fixing bottom box, the first reset guide pillar is slidably arranged on the first reset guide pillar, the first slide block is fixedly connected with the placing bottom box, the first reset spring is wound on the first reset guide pillar, one end of a first reset spring is connected with a first sliding block, the other end of the first reset spring is connected with a fixed bottom box, the left side and the right side of the upper part of the fixed bottom box are respectively provided with two first limiting rods, a cross sliding frame is arranged between the four first limiting rods in a sliding way, the left side and the right side of the cross sliding frame are fixedly connected with a second limiting rod, a lifting cross rod is arranged between the second limiting rods on the left side and the right side in a sliding way, the left side and the right side of the lifting cross rod are fixedly connected with roller positioning blocks, the lower part of the placing bottom box is provided with four third limiting rods at intervals, every two third limiting rods form a group, a second sliding block is arranged between the two third limiting rods in a sliding way, the second sliding block is fixedly connected with the lifting cross rod, an output shaft of a servo motor is connected with a driving worm, the left side and the right side of a sealing bottom plate are respectively provided with a positioning screw in a rotating way, the rear part of the positioning screw is fixedly connected with a driven worm wheel which is meshed with the driving worm, the positioning sleeve is symmetrically fixedly connected with the left side and right side of the bottom of the cross sliding frame, the positioning sleeve is in threaded connection with the positioning screw rod.

Further explaining, the device also comprises an opening and closing mechanism for opening the sealing top plate, the opening and closing mechanism comprises a reversing gear, a first reversing shaft, a transmission belt component, a second reversing shaft, an installation box, a reversing bevel gear, a third reversing shaft, a driven gear, a transverse moving bottom plate, a driving rack, a second reset guide post and a second reset spring, the first reversing shaft is arranged on the upper side of the front part of the fixed bottom box in a left-right symmetrical and rotating mode, the reversing gear is fixedly connected to the front part of the first reversing shaft and the front part of the fixed middle shaft, two adjacent reversing gears are mutually meshed, the second reversing shaft is fixedly connected to the middle of the front part of the fixed bottom box in a left-right symmetrical mode, the transmission belt component is connected between the rear part of the adjacent first reversing shaft and the front part of the second reversing shaft and consists of two belt wheels and a belt, one belt wheel is arranged on the rear part of the first reversing shaft, the other belt wheel is arranged on the front part of the second reversing shaft, the belt is wound between the two belt pulleys, the mounting boxes are fixedly connected in a bilateral symmetry mode in the middle of the fixed bottom box and are rotatably connected with the second reversing shaft, the third reversing shaft is rotatably arranged in the middle of the upper portion of the mounting box, reversing bevel gears are fixedly connected to the lower portion of the third reversing shaft and the rear portion of the second reversing shaft and are located in the mounting boxes, adjacent reversing bevel gears are meshed with each other, driven gears are fixedly connected to the upper portion of the third reversing shaft, second reset guide pillars are arranged on the left side and the right side of the transverse moving frame in a sliding mode, transverse moving bottom plates are fixedly connected to the second reset guide pillars, driving racks are arranged on the outer sides of the transverse moving bottom plates in an embedded mode, the adjacent driving racks are meshed with the driven gears, second reset springs are wound on the second reset guide pillars, one ends of the second reset springs are connected with the transverse moving bottom plates, and the other ends of the second reset springs are connected with the transverse moving frame.

Further, the device also comprises a clamping mechanism which is used for clamping and placing the bottom box, the clamping mechanism comprises a connecting short rod, a hinged connecting rod, a positioning transverse plate, a fixed bottom block, a positioning clamping plate, third resetting guide pillars, a third resetting spring and a buffer spring, the connecting short rod is fixedly connected with the outer side of the rear part of the sealing top plate, the hinged connecting rod is hinged outside the connecting short rod, a group of third resetting guide pillars is arranged on the left side and the right side of the upper part of the fixed bottom box, every four third resetting guide pillars are in a group, the positioning transverse plate is arranged between the four third resetting guide pillars in a sliding way, the fixed bottom block is fixedly connected with the rear part of the positioning transverse plate, the adjacent fixed bottom blocks are rotatably connected with the hinged connecting rod, the third resetting guide pillars are wound with the third resetting spring, one end of the third resetting spring is connected with the positioning transverse plate, the other end of the third resetting spring is connected with the fixed bottom box, the positioning clamping plate for limiting is arranged on the front part of the positioning transverse plate in a sliding way, the positioning clamp plate is sleeved on the third reset guide pillar, and two buffer springs are wound between the inner side surface of the positioning transverse plate and the front part of the positioning clamp plate.

The positioning mechanism comprises a positioning fixture block, fourth reset guide columns, fourth reset springs and an assisting roller, two groups of fourth reset guide columns are arranged on the left portion of the right sealing top plate, every two fourth reset guide columns are in one group, the positioning fixture block used for clamping the sealing top plate is arranged between every two fourth reset guide columns in a sliding mode, the left portion of the positioning fixture block is rotatably provided with the assisting roller, the fourth reset guide columns are wound with the fourth reset springs, one ends of the fourth reset springs are connected with the positioning fixture block, and the other ends of the fourth reset springs are connected with the right sealing top plate.

The dustproof mechanism comprises dustproof cloth, positioning installation rods, spring ropes, positioning wheels, fifth reset guide columns and fifth reset springs, wherein the fifth reset guide columns are symmetrically arranged on the front and back of the upper portion of the bottom case, the two positioning installation rods are arranged between the fifth reset guide columns on the front side and the back side in a sliding mode, the dustproof cloth is arranged between the inner side surfaces of the positioning installation rods and the inner side surfaces of the bottom case, the fifth reset guide columns are wound with the fifth reset springs, one ends of the fifth reset springs are connected with the positioning installation rods, the other ends of the fifth reset springs are connected with the bottom case, the spring ropes are connected between the rear portions of the positioning installation rods and the fixed bottom case, the positioning wheels for guiding are arranged on the upper side of the rear portion of the bottom case in a bilaterally symmetrical rotating mode, and the positioning wheels are in contact with the spring ropes.

Compared with the prior art, the invention has the remarkable improvements that:

1. according to the invention, the sealing top plate is pulled to swing upwards, then people can insert a book between the two clamping plates, and the limiting idler wheel plays a role in guiding, so that the two clamping plates always move inwards to clamp and limit the book due to the action of the clamping spring, therefore, people can conveniently insert the book, and the book is not easy to slip.

2. Under the action of the lifting mechanism, the second sliding block moves upwards to drive the third limiting rod to move upwards, the third limiting rod moves upwards to drive the placing bottom box to move upwards, and people can place or take books.

3. According to the invention, under the action of the clamping mechanism, the positioning transverse plate moves inwards to drive the positioning clamping plate to move inwards, and the positioning clamping plate moves inwards to limit the placing bottom box, so that the placing bottom box can be prevented from moving.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

FIG. 2 is a schematic view of a first partial body structure according to the present invention.

FIG. 3 is a schematic view of a second partial body structure according to the present invention.

Fig. 4 is a schematic partial perspective view of the limiting mechanism of the present invention.

Fig. 5 is a partial perspective view of the sealing mechanism of the present invention.

Fig. 6 is an enlarged schematic view of part a of the present invention.

Fig. 7 is a perspective view of a third embodiment of the present invention.

Fig. 8 is a schematic view of a first partially separated body structure of the lifting mechanism of the present invention.

Fig. 9 is a schematic view of a second partial body structure of the lifting mechanism of the present invention.

Fig. 10 is a perspective view of a third part of the lifting mechanism of the present invention.

Fig. 11 is a schematic view of a first partially-separated body structure of the opening and closing mechanism of the present invention.

Fig. 12 is a schematic view of a second partial structure of the opening and closing mechanism of the present invention.

Fig. 13 is a perspective view of a fourth embodiment of the present invention.

Fig. 14 is a schematic view of a first partially assembled configuration of the clamping mechanism of the present invention.

Fig. 15 is a schematic view of a second partially assembled body of the clamping mechanism of the present invention.

Fig. 16 is a partial perspective view of the positioning mechanism of the present invention.

Fig. 17 is a partial perspective view of the dustproof mechanism of the present invention.

Fig. 18 is an enlarged view of part B of the present invention.

The parts are labeled as follows: 1-fixed bottom box, 2-supporting table top, 3-sealing bottom plate, 4-crashproof sponge strip, 5-positioning bottom frame, 6-lifting support, 7-moving bottom frame, 8-connecting cross bar, 9-placing bottom box, 10-limiting mechanism, 101-separating middle plate, 102-mounting bottom block, 103-clamping plate, 104-clamping spring, 105-limiting roller, 11-sealing mechanism, 111-sealing top plate, 112-fixed middle shaft, 113-stress block, 114-limiting shaft, 115-torsion spring, 12-lifting mechanism, 121-pressure button, 122-servo motor, 123-heat dissipation window, 124-first sliding block, 125-first reset guide pillar, 126-first reset spring, 127-transverse moving frame, 128-a first limit rod, 129-a roller positioning block, 1210-a lifting cross bar, 1211-a second limit rod, 1212-a second sliding block, 1213-a third limit rod, 1214-a driving worm, 1215-a driven worm gear, 1216-a positioning screw, 1217-a positioning sleeve, 13-an opening and closing mechanism, 131-a reversing gear, 132-a first reversing shaft, 133-a transmission belt assembly, 134-a second reversing shaft, 135-a mounting box, 136-a reversing bevel gear, 137-a third reversing shaft, 138-a driven gear, 139-a traversing bottom plate, 1310-a driving rack, 1311-a second reset guide post, 1312-a second reset spring, 14-a clamping mechanism, 141-a connecting short rod, 142-a hinged connecting rod, 143-a positioning transverse plate and 144-a fixed bottom block, 145-positioning clamping plate, 146-third resetting guide pillar, 147-third resetting spring, 148-buffer spring, 15-positioning mechanism, 151-positioning clamping block, 152-fourth resetting guide pillar, 153-fourth resetting spring, 154-auxiliary roller, 16-dustproof mechanism, 161-dustproof cloth, 162-positioning mounting rod, 163-spring rope, 164-positioning wheel, 165-fifth resetting guide pillar and 166-fifth resetting spring.

Detailed Description

The invention is further explained by combining the drawings in the specification and the embodiments of the invention are given by combining the drawings in the specification.

Example 1

A single desk capable of being inserted with books comprises a fixed bottom box 1, a supporting desktop 2, a sealing bottom plate 3, anti-collision sponge strips 4, a positioning bottom frame 5, a lifting support 6, a movable bottom frame 7, connecting cross rods 8, a placing bottom box 9, a limiting mechanism 10 and a sealing mechanism 11, wherein the top of the fixed bottom box 1 is connected with the supporting desktop 2 in a bolt mode, the left side and the right side of the fixed bottom box 1 are provided with chutes, the bottom of the fixed bottom box 1 is connected with the sealing bottom plate 3 in a bolt mode, the outer side surface of the supporting desktop 2 is fixedly connected with the anti-collision sponge strips 4, the front side and the rear side of the left side and the right side outside the fixed bottom box 1 are fixedly connected with the positioning bottom frame 5 in a symmetrical mode, the lifting support 6 is arranged on the positioning bottom frame 5 in a bolt dismounting mode, the outer side surface of the lifting support 6 is fixedly connected with the movable bottom frame 7, the middle of the lower parts of the left side and the movable bottom frame 7 is connected with the connecting cross rods 8 in a bolt mode, fixed under casing 1 internal sliding type is equipped with places under casing 9, places and is equipped with stop gear 10 in the under casing 9, and stop gear 10 can realize cliping books, is equipped with sealing mechanism 11 on the support desktop 2, and sealing mechanism 11 can realize sealing.

As shown in fig. 3 and 4, the limiting mechanism 10 includes a separation middle plate 101, an installation bottom block 102, a clamping plate 103, a clamping spring 104 and a limiting roller 105, the separation middle plate 101 is fixedly connected to the middle part of the inner side of the placement bottom box 9, the installation bottom block 102 is fixedly connected to the left and right sides of the placement bottom box 9 in a front-back symmetrical manner, three installation bottom blocks 102 are fixedly connected to the left and right sides of the separation middle plate 101 in an interval manner, two clamping plates 103 for clamping books are hinged to the installation bottom block 102, the clamping spring 104 is arranged between the inner sides of the two clamping plates 103 on the same installation bottom block 102, and the limiting roller 105 is rotatably arranged on the inner side of the clamping plate 103.

As shown in fig. 3, 5 and 6, the sealing mechanism 11 includes a sealing top plate 111, a fixed center shaft 112, a stress block 113, a limiting shaft 114 and a torsion spring 115, the fixed center shaft 112 is rotatably disposed on both left and right sides of the supporting table top 2, the sealing top plate 111 is fixedly connected to the middle of the fixed center shaft 112, the limiting shaft 114 is rotatably disposed on the inner side of the middle of the sealing top plate 111, the stress block 113 for driving is fixedly connected to the middle of the limiting shaft 114, and the torsion spring 115 is symmetrically wound around the space between the inside of the sealing top plate 111 and the limiting shaft 114.

People accessible supports desktop 2 at ordinary times and learns, anticollision sponge strip 4 is avoided carelessly falling down and is caused the injury, when people need insert books, at first operating personnel through 113 pulling sealed roofs 111 upswing of atress piece, torque spring 115 plays the cushioning effect, then people can insert books between two clamp plates 103, spacing gyro wheel 105 plays the guide effect, thereby because of clamp spring 104's effect, two clamp plates 103 are inwards removed all the time and are pressed from both sides tight spacing to books, and then reset through 113 pulling sealed roofs 111 downswings of atress piece, the same is clear up, if need take out books, according to above-mentioned operation take out books can.

Example 2

On the basis of embodiment 1, as shown in fig. 7-10, the lifting device 12 further includes a lifting mechanism 12, the lifting mechanism 12 includes a pressure button 121, a servo motor 122, a heat dissipation window 123, a first slider 124, a first reset guide post 125, a first reset spring 126, a traverse frame 127, a first limit rod 128, a roller positioning block 129, a lifting cross rod 1210, a second limit rod 1211, a second slider 1212, a third limit rod 1213, a driving worm 1214, a driven worm wheel 1215, a positioning screw 1216, and a positioning sleeve 1217, the pressure button 121 is fixedly connected to the right portion of the front side of the fixed bottom case 1, the servo motor 122 is arranged on the rear side of the right portion of the sealed bottom case 3, the pressure button 121 can control the servo motor 122, the heat dissipation window 123 is arranged on the rear side of the right portion of the sealed bottom case 3, when the servo motor 122 operates, the heat dissipation window 123 can dissipate heat, the heat dissipation window 123 is arranged on the rear side of the servo motor 122, the first reset guide posts 125 are symmetrically arranged on the front and the rear sides of the fixed bottom case 1, a first slide block 124 is arranged on a first reset guide post 125 in a sliding way, the first slide block 124 is fixedly connected with the placing bottom box 9, a first reset spring 126 is wound on the first reset guide post 125, one end of the first reset spring 126 is connected with the first slide block 124, the other end of the first reset spring 126 is connected with the fixed bottom box 1, two first limiting rods 128 are arranged on the left and right sides of the upper part of the fixed bottom box 1, a cross moving frame 127 is arranged between the four first limiting rods 128 in a sliding way, second limiting rods 1211 are fixedly connected on the left and right sides of the cross moving frame 127, a lifting cross rod 1210 is arranged between the left and right second limiting rods 1211 in a sliding way, roller positioning blocks 129 are connected on the left and right sides of the lifting cross rod 1210 in a bolt way, inclined grooves are arranged on the left and right sides in the fixed bottom box 1, the roller positioning blocks 129 are matched with the inclined grooves, four third limiting rods 1213 are arranged on the lower part of the placing bottom box 9 at intervals, every two third limiting rods 1213 form a group, a second sliding block 1212 is slidably arranged between the two third limiting rods 1213, the second sliding block 1212 is fixedly connected with the lifting cross bar 1210, a driving worm 1214 is connected on the output shaft of the servo motor 122, positioning screws 1216 are rotatably arranged on both left and right sides of the sealing bottom plate 3, a driven worm wheel 1215 is fixedly connected to the rear portion of the positioning screws 1216, the driven worm wheel 1215 is meshed with the driving worm 1214, positioning sleeves 1217 are fixedly connected to the bottom of the traversing frame 127 in a bilateral symmetry manner, and the positioning sleeves 1217 are in threaded connection with the positioning screws 1216.

As shown in fig. 7, 11 and 12, the folding device 13 further comprises an opening and closing mechanism 13, the opening and closing mechanism 13 comprises a reversing gear 131, a first reversing shaft 132, a transmission belt assembly 133, a second reversing shaft 134, a mounting box 135, a reversing bevel gear 136, a third reversing shaft 137, a driven gear 138, a traverse bottom plate 139, a driving rack 1310, a second return guide post 1311 and a second return spring 1312, the first reversing shaft 132 is arranged on the upper side of the front portion of the fixed bottom box 1 in a left-right symmetric and rotatable manner, the reversing gear 131 is fixedly connected to the front portion of the first reversing shaft 132 and the front portion of the fixed middle shaft 112, two adjacent reversing gears 131 are engaged with each other, the second reversing shaft 134 is fixedly connected to the middle of the front portion of the fixed bottom box 1 in a left-right symmetric manner, the transmission belt assembly 133 is connected between the rear portion of the adjacent first reversing shaft 132 and the front portion of the second reversing shaft 134, the transmission belt assembly 133 is composed of two pulleys and a belt, one pulley is mounted on the rear portion of the first reversing shaft 132, the other belt pulley is arranged at the front part of the second reversing shaft 134, a belt is wound between the two belt pulleys, the mounting boxes 135 are fixedly connected at the left and right sides of the middle part of the fixed bottom box 1 symmetrically, the mounting boxes 135 are rotatably connected with the second reversing shaft 134, the third reversing shaft 137 is rotatably arranged at the middle of the upper part of the mounting boxes 135, reversing bevel gears 136 are fixedly connected at the lower part of the third reversing shaft 137 and the rear part of the second reversing shaft 134, the reversing bevel gears 136 are positioned in the mounting boxes 135, the adjacent reversing bevel gears 136 are mutually meshed, a driven gear 138 is fixedly connected at the upper part of the third reversing shaft 137, second reset guide columns 1311 are slidably arranged at the left side and the right side of the transverse moving frame 127, a transverse moving bottom plate 139 is fixedly connected on the second reset guide columns 1311, a driving rack 1310 is embedded outside the transverse moving bottom plate 139, the adjacent driving rack 1310 is meshed with the driven gear 138, a second reset spring 1312 is wound on the second reset guide columns 1311, and one end of the second reset spring 1312 is connected with the transverse moving bottom plate 139, the other end of the second return spring 1312 is connected to the cross-frame 127.

As shown in fig. 13-15, the clamping mechanism 14 further comprises a clamping mechanism 14, the clamping mechanism 14 comprises a connecting short rod 141, a hinge connecting rod 142, a positioning cross plate 143, a fixed bottom block 144, a positioning catch plate 145, third returning guide posts 146, third returning springs 147 and buffer springs 148, the connecting short rod 141 is connected to the outer side of the rear portion of the sealing top plate 111 in a bolt manner, the hinge connecting rod 142 is hinged to the outer portion of the connecting short rod 141, a set of third returning guide posts 146 is arranged on each of the left and right sides of the upper portion of the fixed bottom box 1, every four third returning guide posts 146 form a set, the positioning cross plate 143 is slidably arranged between the four third returning guide posts 146, the fixed bottom block 144 is connected to the rear portion of the positioning cross plate 143 in a bolt manner, the adjacent fixed bottom blocks 144 are rotatably connected to the hinge connecting rod 142, the third returning guide posts 146 are wound with third returning springs 147, one end of the third returning springs 147 is connected to the positioning cross plate 143, the other end of the third return spring 147 is connected to the fixed bottom case 1, a positioning catch plate 145 is slidably disposed in front of the positioning cross plate 143, the positioning catch plate 145 can clamp the bottom case 9, the positioning catch plate 145 is sleeved on the third return guide post 146, and two buffer springs 148 are wound between the inner side surface of the positioning cross plate 143 and the front portion of the positioning catch plate 145.

When people pull the sealing top plate 111 to swing upwards, the pressure button 121 is pressed once to drive the servo motor 122 to rotate forwards, the servo motor 122 rotates forwards to drive the driving worm 1214 to rotate forwards, the driving worm 1214 rotates forwards to drive the driven worm wheel 1215 to rotate forwards, the driven worm wheel 1215 rotates forwards to drive the positioning screw 1216 to rotate forwards, the positioning screw 1216 rotates forwards to drive the positioning sleeve 1217 to move backwards, the positioning sleeve 1217 moves backwards to drive the transverse moving frame 127 to move backwards, the transverse moving frame 127 moves backwards to drive the lifting cross bar 1210 to move backwards, the lifting cross bar 1210 moves backwards to drive the roller positioning block 129 to move backwards, meanwhile, the roller positioning block 129 moves backwards to continuously move upwards through the chute in the fixed bottom box 1, the roller positioning block 129 moves upwards to drive the second sliding block 1212 to move upwards, the second sliding block 1212 moves upwards to drive the third limiting rod 1213 to move upwards, the third limiting rod 1213 moves upwards to drive the placing bottom box 9 to move upwards, the first return spring 126 is compressed, thereby the servo motor 122 stops working after positively rotating to the maximum stroke, the driving worm 1214 stops driving the driven worm wheel 1215 to positively rotate, the placing bottom box 9 also stops upwards moving and resetting, people can place or take books, when people place or take books, the pressure button 121 is pressed again to drive the servo motor 122 to reversely rotate, the driving worm 1214 reversely rotates to drive the positioning screw 1216 to reversely rotate through the driven worm wheel 1215, the third limiting rod 1213 also drives the placing bottom box 9 to downwards move and reset, the first return spring 126 plays a role in assisting power, the servo motor 122 stops working after reversely rotating to the maximum stroke in the same way, the placing bottom box 9 also stops moving, the sealing top plate 111 is pulled to downwards swing, and therefore people can more conveniently place or take books.

When the servo motor 122 rotates forward, the positioning sleeve 1217 moves backward to drive the traverse frame 127 to move backward, the second return spring 1312 is compressed, so that the second return spring 1312 is compressed to the maximum stroke, the traverse frame 127 continues to move backward to drive the driving rack 1310 to move backward, the driving rack 1310 moves backward to drive the driven gear 138 to rotate, the driven gear 138 rotates to drive the third reversing shaft 137 to rotate, the third reversing shaft 137 rotates to drive the second reversing shaft 134 to rotate through the reversing bevel gear 136, the second reversing shaft 134 rotates to drive the transmission belt assembly 133 to rotate, the transmission belt assembly 133 rotates to drive the first reversing shaft 132 to rotate, the first reversing shaft 132 rotates to drive the fixed middle shaft 112 to rotate through the reversing gear 131, the fixed middle shaft 112 rotates to drive the seal top plate 111 to swing upward, so that the servo motor 122 stops working after reaching the maximum stroke, the traverse frame 127 stops driving the driving rack 1310 to move backward, the sealing top plate 111 stops swinging upwards, when people place or take books, the pressure button 121 is pressed again to drive the servo motor 122 to rotate reversely, the positioning sleeve 1217 drives the transverse moving frame 127 to move forwards for resetting, similarly, the second reset spring 1312 resets to the maximum stroke, the transverse moving frame 127 continues to drive the driving rack 1310 to move forwards, the fixed middle shaft 112 also drives the sealing top plate 111 to swing downwards for resetting, the servo motor 122 stops working after rotating to the maximum stroke, and therefore people do not need to pull the sealing top plate 111.

When the sealing top plate 111 swings upwards, the sealing top plate 111 swings upwards to drive the connecting short rod 141 to swing downwards, the connecting short rod 141 swings downwards to drive the fixed bottom block 144 to move inwards through the hinged connecting rod 142, the fixed bottom block 144 moves inwards to drive the positioning transverse plate 143 to move inwards, the third return spring 147 is stretched, the positioning transverse plate 143 moves inwards to drive the positioning clamping plate 145 to move inwards, the positioning clamping plate 145 moves inwards to limit the placing bottom box 9, the buffer spring 148 plays a role in buffering, when the sealing top plate 111 swings downwards to return, the connecting short rod 141 drives the fixed bottom block 144 to move outwards through the hinged connecting rod 142 to return, the positioning transverse plate 143 also drives the positioning clamping plate 145 to move outwards to return, and the third return spring 147 plays a role in assisting power, so that the placing bottom box 9 can be prevented from moving.

Example 3

On the basis of the embodiments 1 and 2, as shown in fig. 13 and 16, the positioning device 15 further includes a positioning mechanism 15, the positioning mechanism 15 includes a positioning fixture block 151, a fourth returning guide post 152, a fourth returning spring 153 and an assist roller 154, two sets of fourth returning guide posts 152 are disposed at the left portion of the right sealing top plate 111, every two fourth returning guide posts 152 form a set, a positioning fixture block 151 is slidably disposed between the two fourth returning guide posts 152, a clamping groove for the positioning fixture block 151 to cooperate with is disposed at the right portion of the left sealing top plate 111, the positioning fixture block 151 can clamp the two sealing top plates 111, the assist roller 154 is rotatably disposed at the left portion of the positioning fixture block 151, the fourth returning spring 153 is wound around the fourth returning guide post 152, one end of the fourth returning spring 153 is connected to the positioning fixture block 151, and the other end of the fourth returning spring 153 is connected to the right sealing top plate 111.

As shown in fig. 13, 17 and 18, the dust-proof mechanism 16 further comprises a dust-proof mechanism 16, the dust-proof mechanism 16 comprises a dust-proof cloth 161, a positioning installation rod 162, a spring rope 163, a positioning wheel 164, a fifth reset guide post 165 and a fifth reset spring 166, the fifth reset guide post 165 is symmetrically arranged on the upper portion of the placing bottom case 9 in the front-back direction, two positioning installation rods 162 are slidably arranged between the fifth reset guide posts 165 on the front side and the rear side, the dust-proof cloth 161 is arranged between the inner side surface of the positioning installation rod 162 and the inner side surface of the placing bottom case 9, the fifth reset spring 166 is wound on the fifth reset guide post 165, one end of the fifth reset spring 166 is connected with the positioning installation rod 162, the other end of the fifth reset spring 166 is connected with the placing bottom case 9, the spring rope 163 is connected between the rear portion 162 of the positioning installation rod and the fixed bottom case 1, the positioning wheel 164 is symmetrically arranged on the upper side of the rear portion of the placing bottom case 9 in the left-right direction, the positioning wheel 164 is in contact with the spring rope 163, the positioning wheel 164 may be implemented to guide the spring line.

When the top sealing plate 111 swings upward, the left top sealing plate 111 slides over the positioning fixture block 151 under the action of the fourth return spring 153, and the auxiliary roller 154 plays a guiding role, and similarly, when the top sealing plate 111 swings downward and returns, the positioning fixture block 151 is inserted into the left top sealing plate 111, so that the top sealing plate 111 can be prevented from deviating.

When placing under casing 9 and upwards removing, spring rope 163 pulling location installation pole 162 outwards removes, and positioning wheel 164 plays the guide effect, and fifth reset spring 166 is compressed, and location installation pole 162 outwards removes and drives dustproof cloth 161 and outwards folds, and then places under casing 9 and downwards move and reset, because of fifth reset spring 166's effect, location installation pole 162 drives dustproof cloth 161 and inwards stretches the restoration, so, can avoid the dust to get into and place under casing 9 in.

Finally, it is necessary to state that: the above-mentioned contents are only used to help understanding the technical solution of the present invention, and should not be interpreted as limiting the scope of the present invention; insubstantial modifications and adaptations of the invention as described above will occur to those skilled in the art and are intended to be within the scope of the invention as claimed.

Claims (8)

1. A single desk capable of being inserted with books comprises a fixed bottom box (1), a supporting desktop (2), a sealing bottom plate (3), anti-collision sponge strips (4), a positioning bottom frame (5), a lifting support (6), a movable bottom frame (7), connecting cross rods (8), a placing bottom box (9) and a limiting mechanism (10), wherein the top of the fixed bottom box (1) is fixedly connected with the supporting desktop (2), the bottom of the fixed bottom box (1) is fixedly connected with the sealing bottom plate (3), the outer side surface of the supporting desktop (2) is fixedly connected with the anti-collision sponge strips (4), the front and the back of the left side and the right side outside the fixed bottom box (1) are symmetrically fixedly connected with the positioning bottom frame (5), the lifting support (6) is arranged on the positioning bottom frame (5) in a bolt-down mode, the outer side surface of the lifting support (6) is fixedly connected with the movable bottom frame (7), the middle of the lower parts of the left side and the movable bottom frame (7) is fixedly connected with the connecting cross rods (8), a placing bottom box (9) is arranged in the fixed bottom box (1) in a sliding mode, a limiting mechanism (10) used for clamping books is arranged in the placing bottom box (9), the limiting mechanism (10) comprises a separating middle plate (101), an installing bottom block (102), clamping plates (103), clamping springs (104) and limiting idler wheels (105), the middle of the inner side of the placing bottom box (9) is fixedly connected with the separating middle plate (101), the left side and the right side of the placing bottom box (9) are fixedly connected with the installing bottom block (102) in a front-back symmetrical mode, the left side and the right side of the separating middle plate (101) are also fixedly connected with the installing bottom block (102) in a spaced mode, two clamping plates (103) used for clamping books are arranged on the installing bottom block (102) in a hinged mode, the clamping springs (104) are arranged between the inner side faces of the two clamping plates (103), the limiting idler wheels (105) are rotatably arranged on the inner sides of the clamping plates (103), and the book clamping mechanism is characterized by further comprising a sealing mechanism (11), the supporting table top (2) is provided with a sealing mechanism (11) for sealing.

2. The single desk capable of being inserted with books as claimed in claim 1, wherein the sealing mechanism (11) comprises a sealing top plate (111), a fixed center shaft (112), a stress block (113), a limiting shaft (114) and a torsion spring (115), the fixed center shaft (112) is rotatably arranged on the left side and the right side of the supporting desktop (2), the sealing top plate (111) is fixedly connected to the middle of the fixed center shaft (112), the limiting shaft (114) is rotatably arranged on the inner side of the middle of the sealing top plate (111), the stress block (113) for driving is fixedly connected to the middle of the limiting shaft (114), and the torsion spring (115) is symmetrically wound in the sealing top plate (111) and between the limiting shaft (114) in a front-back manner.

3. The single desk capable of being inserted with books as claimed in claim 2, further comprising a lifting mechanism (12) for driving the bottom case (9) to lift, wherein the lifting mechanism (12) comprises a pressure button (121), a servo motor (122), a heat dissipation window (123), a first slider (124), a first reset guide post (125), a first reset spring (126), a traverse frame (127), a first limit rod (128), a roller positioning block (129), a lifting cross rod (1210), a second limit rod (1211), a second slider (1212), a third limit rod (1213), a driving worm (1214), a driven worm wheel (1215), a positioning screw (1216) and a positioning sleeve (1217), the pressure button (121) is fixedly connected to the right portion of the front side of the fixed bottom case (1), the servo motor (122) is arranged on the rear side of the right portion of the sealing bottom plate (3), and the pressure button (121) can control the servo motor (122), a heat dissipation window (123) for heat dissipation is arranged on the rear side of the right part of the sealing bottom plate (3), the heat dissipation window (123) is positioned on the rear side of the servo motor (122), first reset guide posts (125) are fixedly connected with the front side and the rear side of the fixed bottom box (1) in a bilateral symmetry manner, first sliding blocks (124) are arranged on the first reset guide posts (125) in a sliding manner, the first sliding blocks (124) are fixedly connected with the placing bottom box (9), first reset springs (126) are wound on the first reset guide posts (125), one ends of the first reset springs (126) are connected with the first sliding blocks (124), the other ends of the first reset springs (126) are connected with the fixed bottom box (1), two first limiting rods (128) are arranged on the left side and the right side of the upper part of the fixed bottom box (1), a transverse moving frame (127) is arranged between the four first limiting rods (128) in a sliding manner, second limiting rods (1211) are fixedly connected on the left side and the right side of the transverse frame (127), and a lifting cross rod (1210) is arranged between the second limiting rods (1211) on the left side and the right side in a sliding manner, the left side and the right side of a lifting cross rod (1210) are fixedly connected with roller positioning blocks (129), four third limiting rods (1213) are arranged at the lower part of a bottom box (9) at intervals, every two third limiting rods (1213) form a group, a second sliding block (1212) is arranged between every two third limiting rods (1213) in a sliding mode, the second sliding block (1212) is fixedly connected with the lifting cross rod (1210), a driving worm (1214) is connected onto an output shaft of a servo motor (122), positioning screws (1216) are arranged on the left side and the right side of a sealing bottom plate (3) in a rotating mode, a driven worm wheel (1215) is fixedly connected to the rear portion of each positioning screw (1216), the driven worm wheel (1215) is meshed with the driving worm (1214), positioning sleeves (1217) are fixedly connected to the left side and the right side of the bottom of a transverse moving frame (127), and the positioning sleeves (1217) are in threaded connection with the positioning screws (1216).

4. A single desk capable of being inserted with books as claimed in claim 3, further comprising an opening and closing mechanism (13) for opening the sealing top plate (111), wherein the opening and closing mechanism (13) comprises a reversing gear (131), a first reversing shaft (132), a transmission belt assembly (133), a second reversing shaft (134), a mounting box (135), a reversing bevel gear (136), a third reversing shaft (137), a driven gear (138), a traverse bottom plate (139), a driving rack (1310), a second reset guide post (1311) and a second reset spring (1312), the first reversing shaft (132) is rotatably arranged on the upper side of the front part of the fixed bottom box (1) in a left-right symmetrical manner, the reversing gear (131) is fixedly connected to the front part of the first reversing shaft (132) and the front part of the fixed middle shaft (112), two adjacent reversing gears (131) are mutually engaged, the second reversing shaft (134) is fixedly connected to the middle of the front part of the fixed bottom box (1) in a left-right symmetrical manner, a transmission belt component (133) is connected between the rear part of the adjacent first reversing shaft (132) and the front part of the second reversing shaft (134), the transmission belt component (133) consists of two belt pulleys and a belt, one belt pulley is arranged at the rear part of the first reversing shaft (132), the other belt pulley is arranged at the front part of the second reversing shaft (134), the belt is wound between the two belt pulleys, mounting boxes (135) are fixedly connected in the left-right symmetry way in the middle of the fixed bottom box (1), the mounting boxes (135) are rotatably connected with the second reversing shaft (134), a third reversing shaft (137) is rotatably arranged in the middle of the upper part of the mounting boxes (135), reversing bevel gears (136) are fixedly connected with the lower part of the third reversing shaft (137) and the rear part of the second reversing shaft (134), the reversing bevel gears (136) are positioned in the mounting boxes (135), the adjacent reversing bevel gears (136) are mutually meshed, and a driven gear (138) is fixedly connected with the upper part of the third reversing shaft (137), the left side and the right side of the transverse moving frame (127) are both provided with a second reset guide post (1311) in a sliding mode, a transverse moving bottom plate (139) is fixedly connected onto the second reset guide post (1311), a driving rack (1310) is embedded into the outer side of the transverse moving bottom plate (139), the adjacent driving rack (1310) is meshed with the driven gear (138), a second reset spring (1312) winds the second reset guide post (1311), one end of the second reset spring (1312) is connected with the transverse moving bottom plate (139), and the other end of the second reset spring (1312) is connected with the transverse moving frame (127).

5. The single desk capable of being inserted with books as claimed in claim 4, further comprising a clamping mechanism (14) for clamping and placing the bottom case (9), wherein the clamping mechanism (14) comprises a connecting short rod (141), a hinged connecting rod (142), a positioning transverse plate (143), a fixed bottom block (144), a positioning clamping plate (145), a third reset guide post (146), a third reset spring (147) and a buffer spring (148), the connecting short rod (141) is fixedly connected to the outer side of the rear portion of the sealing top plate (111), the hinged connecting rod (142) is hinged to the outer portion of the connecting short rod (141), a group of third reset guide posts (146) is respectively arranged on the left side and the right side of the upper portion of the fixed bottom case (1), every four third reset guide posts (146) form a group, the positioning transverse plate (143) is slidably arranged between the four third reset guide posts (146), the rear portion of the positioning transverse plate (143) is fixedly connected with the fixed bottom block (144), the adjacent fixed bottom block (144) is rotatably connected with the hinged connecting rod (142), a third reset spring (147) is wound on the third reset guide post (146), one end of the third reset spring (147) is connected with the positioning transverse plate (143), the other end of the third reset spring (147) is connected with the fixed bottom box (1), a positioning clamping plate (145) used for limiting is arranged in the front portion of the positioning transverse plate (143) in a sliding mode, the positioning clamping plate (145) is sleeved on the third reset guide post (146), and two buffer springs (148) are wound between the inner side surface of the positioning transverse plate (143) and the front portion of the positioning clamping plate (145).

6. The single desk capable of being inserted with books as claimed in claim 5, further comprising a positioning mechanism (15) for positioning, wherein the positioning mechanism (15) comprises a positioning block (151) and a fourth reset guide post (152), fourth reset spring (153) and power-assisted roller (154), right side seal roof (111) left part is equipped with two sets of fourth guide pillar (152) that resets, per two fourth guide pillar (152) that resets are a set of, slidingly be equipped with between two fourth guide pillar (152) that resets and be used for can be to the location fixture block (151) of seal roof (111) screens, location fixture block (151) left part rotary type is equipped with power-assisted roller (154), around fourth reset spring (153) on fourth guide pillar (152) that resets, fourth reset spring (153) one end is connected with location fixture block (151), the fourth reset spring (153) other end is connected with right side seal roof (111).

7. The single desk capable of being inserted with books as claimed in claim 6, further comprising a dustproof mechanism (16) for preventing dust from entering, wherein the dustproof mechanism (16) comprises dustproof cloth (161), a positioning installation rod (162), a spring rope (163), a positioning wheel (164), a fifth reset guide post (165) and a fifth reset spring (166), the fifth reset guide post (165) is symmetrically arranged at the front and back of the upper part of the placing bottom box (9), two positioning installation rods (162) are slidably arranged between the fifth reset guide posts (165) at the front and back sides, the dustproof cloth (161) is arranged between the inner side of the positioning installation rod (162) and the inner side of the placing bottom box (9), the fifth reset guide post (165) is wound with the fifth reset spring (166), one end of the fifth reset spring (166) is connected with the positioning installation rod (162), the other end of the fifth reset spring (166) is connected with the placing bottom box (9), a spring rope (163) is connected between the rear part of the positioning installation rod (162) and the fixed bottom box (1), positioning wheels (164) used for guiding are arranged on the upper side of the rear part of the placing bottom box (9) in a left-right symmetrical rotating mode, and the positioning wheels (164) are in contact with the spring rope (163).

8. A single person desk capable of holding books as claimed in claim 1, wherein the left and right sides of the bottom box (9) are provided with chutes on which the roller positioning blocks (129) slide.

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