CN115054059A

CN115054059A - Rollover prevention device for compact shelf

Info

Publication number: CN115054059A
Application number: CN202210733491.5A
Authority: CN
Inventors: 丁海新
Original assignee: Jiangxi Yangguang Safety Equipment Group Co ltd
Current assignee: Jiangxi Yangguang Safety Equipment Group Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2022-09-16
Anticipated expiration: 2042-06-27
Also published as: CN115054059B

Abstract

The invention relates to a side turning prevention device, in particular to a side turning prevention device for a movable rack. The invention aims to provide a side turning prevention device for a compact shelf, which can adjust the gravity center and has a supporting function. The invention provides a side turning prevention device for a compact shelf, which comprises a first slide rail, a compact shelf, a sealing door, an extension mechanism and the like, wherein the bottom of the compact shelf is connected with the first slide rail in a sliding manner, the front side of the compact shelf is connected with the sealing door in a rotating manner, the rear side of the compact shelf is also connected with the sealing door in a rotating manner for covering files, and the bottom of the compact shelf is provided with the extension mechanism for adjusting the gravity center. According to the invention, the wheels can move outwards by starting the motor, so that the supporting area of the compact shelf and the ground is increased, the gravity center of the anti-rollover device for the compact shelf is further adjusted, and during the movement of the compact shelf, the compact shelf can be assisted to move and prevented from rollover under the action of the wheels.

Description

Side turning prevention device for compact shelf

Technical Field

The invention relates to a side turning prevention device, in particular to a side turning prevention device for a compact shelf.

Background

Compact shelving is generally referred to as a compact case. Dense cabinets originally originated in japan. The intensive cabinet is a novel harness suitable for storing book data, archives, goods prices, archives financial certificates and goods in book data rooms, archive rooms, sample rooms and the like of institutions, enterprises and public institutions, and compared with conventional bookshelves, goods shelves and archive shelves, the intensive cabinet is large in storage capacity, saves space and is more traditional.

At present, when the compact shelving moves, the contact between the sliding rail at the bottom and the box body is small, so that the compact shelving is prone to rollover due to unstable gravity center, potential safety hazards to people exist, documents or articles in the compact shelving are prone to be disordered after rollover, and when people take articles on the upper portion of the compact shelving, the box body on the upper portion of the compact shelving is supported, so that the rollover of the upper portion of the compact shelving is prone to happen due to overweight.

Therefore, aiming at the defects, the side turning prevention device for the compact shelf, which can adjust the gravity center and has the supporting function, is provided.

Disclosure of Invention

The invention aims to overcome the defects that the existing compact shelving is easy to rollover due to unstable gravity center when moving, and people can hold the box body at the upper part of the compact shelving when taking objects at the upper part of the compact shelving, so that the upper part of the compact shelving is easy to rollover due to overweight.

The invention is realized by the following technical approaches:

the utility model provides a prevent device of turning on one's side for intensive, including first slide rail, intensive, sealing door, extend mechanism, supporting mechanism and trigger mechanism, intensive bottom sliding type is connected with first slide rail, intensive front side rotary type is connected with sealing door, intensive rear side also rotary type is connected with the sealing door that is used for hiding the file, intensive bottom is equipped with the extension mechanism that is used for adjusting focus, intensive lower part is equipped with the supporting mechanism that is used for the supporting role, through supporting mechanism and ground contact, make supporting mechanism support intensive, intensive upper portion is equipped with the trigger mechanism that is used for making supporting mechanism move.

As a preferred technical scheme of the invention, the stretching mechanism comprises a first guide sleeve, a first slide bar, a fixed shaft, wheels, a rack, a fixed frame, a motor and gears, wherein the first guide sleeve is symmetrically connected to the front side and the rear side of the bottom of the compact shelving left and right, the first slide bar is connected to the lower portion of the first guide sleeve in a sliding manner, the fixed shaft is connected between the front sides of the first slide bars on the front side, the fixed shaft is connected between the rear sides of the first slide bars on the rear side, the wheels are rotatably connected to the left side and the right side of the fixed shaft, the rack is connected to the bottom of the fixed shaft, the fixed frame is connected to the bottom of the compact shelving in a middle manner, the motor is connected to the fixed frame, the gears are connected to an output shaft of the motor, the racks are all meshed with the gears, the gears are driven to move when the gears rotate through the motor, and the racks drive the fixed shaft and the wheels to move.

As a preferred technical scheme of the invention, the supporting mechanism comprises a first guide rod, a sliding block and a supporting block, the lower parts of the left side and the right side of the compact shelf are symmetrically connected with the first guide rod in a front-back manner, the sliding block is connected on the first guide rod in a sliding manner, the supporting block is connected on the outer side of the bottom of the sliding block, and the sliding block moves on the first guide rod to drive the supporting block to move.

As a preferred technical scheme of the invention, the triggering mechanism comprises a second guide rod, a triggering rod, a second guide sleeve, a second slide rod, a first elastic piece, a diagonal rod, a second slide rail and a connecting seat, the upper parts of the left side and the right side of the compact shelving are symmetrically connected with the second guide rod in a front-back manner, the triggering rod is connected between the second guide rods on the left side in a sliding manner, the sealing door on the upper side can be contacted with the triggering rod when rotating, the triggering rod is also connected between the second guide rods on the right side in a sliding manner, the lower parts of the left side and the right side of the compact shelving are connected with the second guide sleeve, the second guide sleeve is positioned above the first guide rod, the second guide sleeve is connected with the second slide rod in a sliding manner, the tops of the second slide rods are connected with the diagonal rods on the left side, the diagonal rods on the right side are contacted with the triggering rod on the right side, the tops of the second guide sleeves on the left side and the right side are respectively connected with the first elastic piece between the diagonal rods on the left side and the right side, the second slide bar bottom all is connected with the second slide rail, slider top inboard all is connected with the connecting seat, left connecting seat upper portion and left second slide rail sliding type connection, the connecting seat upper portion on right side and the second slide rail sliding type connection on right side, touch the trigger bar when opening through the sealing door, make the type to one side pole, second slide bar and second slide rail motion, second slide rail extrusion connecting seat motion, the connecting seat drives the slider motion, first elastic component is used for the type to one side pole, the second slide bar, second slide rail and connecting seat to reset.

As a preferred technical scheme of the invention, the compact shelving also comprises a fixing mechanism for fixing the upper sealing door, the fixing mechanism comprises a third guide sleeve, a third slide bar, a second elastic piece, a first clamping plate and a third guide bar, the upper parts of the left side and the right side of the compact shelving are symmetrically connected with the third guide sleeve in the front and back direction, the third guide sleeve is positioned below the second guide bar, the third guide sleeve is connected with the third slide bar in a sliding way, the third slide bar is connected with the first clamping plate in a connecting way, the upper sealing door of the upper side can be contacted with the upper part of the adjacent first clamping plate when rotating, the third slide bar is wound with the second elastic piece, one end of the second elastic piece is connected with the bottom of the adjacent third guide sleeve, the other end of the second elastic piece is connected with the adjacent first clamping plate in a connecting way, the left side and the right side of the top of the compact shelving are symmetrically connected with the third guide bar in the front and back direction, the upper part of the first clamping plate is connected with the adjacent third guide bar in a sliding way, touching first cardboard when opening through sealing door makes first cardboard motion, and the second elastic component is used for first cardboard to restore to the throne, makes first cardboard block sealing door.

As a preferred technical scheme, the compact shelving comprises a shelf body and is characterized by further comprising a pedal mechanism used by people with insufficient height, wherein the pedal mechanism comprises a fourth guide sleeve, a fourth slide rod, a pedal and a handle, the left side and the right side of the lower portion of the compact shelving are symmetrically connected with the fourth guide sleeve in a front-back mode, the fourth guide sleeve is connected with the fourth slide rod in a front-back mode, the pedal is connected between the fourth slide rods on the front side, the pedal is connected between the fourth slide rods on the rear side, the handle is connected to the outer side of the pedal, the pedal is driven to move through the movement of the handle, and people stand on the pedal to access files.

As a preferred technical scheme of the invention, the compact shelving also comprises a limiting mechanism for fixing the pedals, the limiting mechanism comprises a fourth guide rod, a second clamping plate, a third elastic part and a lower pressing plate, the lower parts of the front side and the rear side of the compact shelving are symmetrically connected with the fourth guide rod in the left-right direction, the second clamping plate is connected between the fourth guide rods at the front side in a sliding way, the second clamping plate is also connected between the fourth guide rods at the rear side in a sliding way, the pedals at the front side and the rear side are respectively clamped by the second clamping plates at the front side and the rear side, the third elastic part is connected between the left side and the right side of the bottom of the second clamping plate and the compact shelving, the third elastic parts are wound on the adjacent fourth guide rods, the lower pressing plates are connected at the left side and the right side of the top of the second clamping plate, through the motion of holding down the board, drive the motion of second cardboard, remove the fixed to the footboard, the third elastic component is used for second cardboard and holding down the board and resets, fixes the footboard again.

As a preferable technical scheme of the invention, the pedals are all provided with the clamping grooves at intervals, the second clamping plate at the front side is clamped in the front side clamping groove of the front side pedal, and the second clamping plate at the rear side is clamped in the rear side clamping groove of the rear side pedal.

The invention provides a side turning prevention device for a movable rack, which has the advantages that:

1. according to the invention, the wheels can move outwards by starting the motor, so that the supporting area of the compact shelf and the ground is increased, the gravity center of the anti-rollover device for the compact shelf is further adjusted, and during the movement of the compact shelf, the compact shelf can be assisted to move and prevented from rollover under the action of the wheels.

2. According to the compact shelving, the upper sealing door is in contact with the trigger rod, so that the supporting block can move outwards, the supporting block is in contact with the ground, the supporting block supports the compact shelving, and the situation that the upper part of the compact shelving is too heavy and the compact shelving is turned over is avoided.

3. According to the invention, under the action of the first clamping plate, the upper sealing door is clamped by the first clamping plate, so that the upper sealing door can be fixed, and the upper sealing door is prevented from being reversed and reset.

4. Under the action of the pedal, people can access files or articles by standing on the pedal, so that people with insufficient height can access the files or articles conveniently.

Drawings

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

Fig. 2 is a partial perspective view of the present invention.

Fig. 3 is a schematic perspective view of a first extension mechanism of the present invention.

Fig. 4 is a schematic perspective view of a second extension mechanism of the present invention.

Fig. 5 is a schematic perspective view of the supporting mechanism of the present invention.

Fig. 6 is a schematic perspective view of the triggering mechanism of the present invention.

Fig. 7 is a schematic perspective view of the fixing mechanism of the present invention.

FIG. 8 is a first perspective view of the footrest mechanism of the present invention.

FIG. 9 is a second perspective view of the pedal mechanism of the present invention.

FIG. 10 is a third perspective view of the footrest mechanism of the present invention.

Fig. 11 is a schematic perspective view of the spacing mechanism of the present invention.

Labeled as: 1-a first slide rail, 2-a compact shelf, 3-a sealing door, 4-a stretching mechanism, 401-a first guide sleeve, 402-a first slide bar, 403-a fixed shaft, 404-a wheel, 405-a rack, 406-a fixed frame, 407-a motor, 408-a gear, 5-a supporting mechanism, 501-a first guide bar, 502-a slider, 503-a supporting block, 6-a triggering mechanism, 601-a second guide bar, 602-a triggering bar, 603-a second guide sleeve, 604-a second slide bar, 605-a first elastic member, 606-a diagonal bar, 607-a second slide rail, 608-a connecting seat, 7-a fixing mechanism, 701-a third guide sleeve, 702-a third slide bar, 703-a second elastic member, 704-a first snap-plate, 705-a third guide bar, 8-a pedal mechanism, 801-a fourth guide sleeve, 802-a fourth sliding rod, 803-a pedal, 804-a handle, 9-a limiting mechanism, 901-a fourth guide rod, 902-a second clamping plate, 903-a third elastic piece, 904-a lower pressing plate and 905-a clamping groove.

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

The utility model provides a prevent device of turning on one's side for intensive, including first slide rail 1, intensive 2, sealing door 3, extension mechanism 4, supporting mechanism 5 and trigger mechanism 6, refer to fig. 1-6 and show, intensive 2 bottom left and right sides all sliding type are connected with first slide rail 1, the upper and lower both sides of intensive 2 front sides all bilateral symmetry rotary type are connected with sealing door 3, close through sealing door 3 reversal, can hide the article of depositing, the upper and lower both sides of intensive 2 rear sides all bilateral symmetry also rotary type are connected with sealing door 3, intensive 2 bottom is equipped with extension mechanism 4, intensive 2 lower parts are equipped with supporting mechanism 5, intensive 2 upper portions are equipped with trigger mechanism 6.

The extending mechanism 4 comprises a first guide sleeve 401, a first slide bar 402, a fixed shaft 403, wheels 404, a rack 405, a fixed frame 406, a motor 407 and a gear 408, as shown in fig. 3 and 4, the front and back sides of the bottom of the compact shelving 2 are symmetrically welded with the first guide sleeve 401, the lower parts of the four first guide sleeves 401 are connected with the first slide bar 402 in a sliding manner, the fixed shaft 403 is connected between the front sides of the two first slide bars 402 at the front side, the fixed shaft 403 is connected between the back sides of the two first slide bars 402 at the back side, the wheels 404 are rotatably connected at the left and right sides of the two fixed shafts 403, the supporting area between the compact shelving 2 and the ground can be increased by moving the wheels 404 outwards, thereby adjusting the gravity center of the anti-rollover device for the compact shelving, the rack 405 is connected at the bottom of the two fixed shafts, the fixed frame 406 is connected in the middle of the bottom of the compact shelving 2, the fixed frame 406 is bolted with the motor 407, the output shaft of the motor 407 is connected with a gear 408, and both racks 405 are engaged with the gear 408.

The supporting mechanism 5 comprises first guide rods 501, sliders 502 and supporting blocks 503, as shown in fig. 5, the first guide rods 501 are symmetrically welded to the front and back of the lower portions of the left and right sides of the compact shelf 2, the sliders 502 are connected to the four first guide rods 501 in a sliding manner, the supporting blocks 503 are connected to the outer sides of the bottoms of the four sliders 502, and the compact shelf 2 can be supported by moving the supporting blocks 503 to the outside to contact with the ground.

The triggering mechanism 6 comprises a second guide rod 601, a triggering rod 602, a second guide sleeve 603, a second sliding rod 604, a first elastic part 605, an inclined rod 606, a second sliding rail 607 and a connecting seat 608, as shown in fig. 6, the upper parts of the left and right sides of the compact shelving 2 are symmetrically connected with the second guide rod 601 in front and back, the triggering rod 602 is connected between the two second guide rods 601 on the left side in a sliding manner, the supporting block 503 can move outwards by the contact of the sealing door 3 and the triggering rod 602, the four sealing doors 3 on the upper side can contact with the triggering rod 602 when rotating, the triggering rod 602 is also connected between the two second guide rods 601 on the right side in a sliding manner, the second guide sleeves 603 are welded on the lower parts of the left and right sides of the compact shelving 2, the second guide sleeves 603 are positioned above the first guide rods 501, the two second guide sleeves 603 are connected with the second sliding rods 604 in a sliding manner, the tops of the two second sliding rods 604 are connected with the inclined rods 606, the left oblique rod 606 is in contact with the left trigger rod 602, the right oblique rod 606 is in contact with the right trigger rod 602, the top of the left second guide sleeve 603 and the top of the right second guide sleeve are connected with a first elastic part 605 between the left oblique rod 606 and the right oblique rod 606, the bottoms of the two second sliding rods 604 are connected with a second sliding rail 607, the inner sides of the tops of the four sliding blocks 502 are connected with connecting seats 608, the upper parts of the two left connecting seats 608 are connected with the left second sliding rail 607 in a sliding manner, and the upper parts of the two right connecting seats 608 are connected with the right second sliding rail 607 in a sliding manner.

When people need to use the anti-rollover device for the compact shelf, firstly, the motor 407 is started, the output shaft of the motor 407 is controlled to rotate forwards, so that the gear 408 is driven to rotate forwards, the gear 408 drives the rack 405 to move outwards, the fixed shaft 403, the first sliding rod 402 and the wheel 404 are driven to move outwards, the supporting area of the compact shelf 2 and the ground is increased, then, the motor 407 is closed, then, people can pull the compact shelf 2 to move forwards, during the period, under the action of the wheel 404, the motion of the compact shelf 2 can be assisted, meanwhile, the compact shelf 2 can be prevented from rolling over, after the compact shelf 2 moves to a proper position, the compact shelf 2 is loosened, then, the sealing door 3 is pulled to rotate to open, when the sealing door 3 on the upper side is in contact with the trigger rod 602, the sealing door 3 on the upper side can press the trigger rod 602 to move outwards, so that the trigger rod 602 presses the inclined rod 606 to move downwards, the first elastic element 605 is compressed to drive the second sliding rod 604 and the second sliding rail 607 to move downwards, so that the second sliding rail 607 presses the connecting seat 608 to move outwards, so as to drive the sliding block 502 to move outwards on the first guiding rod 501, further drive the supporting block 503 to move outwards, so as to make the supporting block 503 contact with the ground, so as to make the supporting block 503 support the compact shelving 2, prevent the compact shelving 2 from turning over due to the overweight upper part of the compact shelving 2, then people can store the files or articles in the compact shelving 2, and then push the sealing door 3 to turn back and close, when the sealing door 3 on the upper side is separated from the trigger rod 602, the first elastic element 605 restores to the original state, the first elastic element 605 drives the inclined rod 606, the second sliding rod 604 and the second sliding rail 607 to move upwards to restore, so that the inclined rod 606 presses the trigger rod 602 to move inwards to restore, so as to make the second sliding rail 607 pull the connecting seat 608 to move inwards and restore, and then the sliding block 502 moves to the inner side on the first guide rod 501 to reset, thereby driving the supporting block 503 to move to the inner side to reset, thereby separating the supporting block 503 from the ground, then pushing the compact shelf 2 to move to the back to reset, then starting the motor 407, controlling the output shaft of the motor 407 to rotate reversely, thereby driving the gear 408 to drive the rack 405 to move to the inner side to reset, thereby driving the fixed shaft 403, the first sliding rod 402 and the wheel 404 to move to the inner side to reset, and then closing the motor 407.

Example 2

On the basis of embodiment 1, the compact shelving further comprises a fixing mechanism 7, wherein the fixing mechanism 7 comprises a third guide sleeve 701, a third slide bar 702, a second elastic member 703, a first snap-gauge 704 and a third guide bar 705, as shown in fig. 1 and fig. 7, the third guide sleeve 701 is symmetrically welded on the upper portion of the left side and the right side of the compact shelving 2 in a front-back manner, the third guide sleeve 701 is located below the second guide bar 601, the four third guide sleeves 701 are slidably connected with the third slide bar 702, the four third slide bars 702 are connected with the first snap-gauge 704, the sealing door 3 is clamped by the first snap-gauge 704 and can be fixed, the four sealing doors 3 on the upper side can be contacted with the upper portion of the adjacent first snap-gauge 704 when rotating, the four third slide bars 702 are wound with the second elastic member 703, one end of each of the four second elastic members 703 is connected with the bottom of the adjacent third slide bar 701, the other end of each of the four second elastic members 703 is connected with the adjacent first snap-gauge 704, the left side and the right side of the top of the compact shelf 2 are symmetrically connected with third guide rods 705 in a front-back manner, and the upper part of the first clamping plate 704 is connected with the adjacent third guide rods 705 in a sliding manner.

When the upper side sealing door 3 is rotated to be opened, the upper side sealing door 3 can be contacted with the first clamping plate 704, at the moment, the sealing door 3 can extrude the first clamping plate 704 to move upwards, the second elastic member 703 is compressed, after the upper side sealing door 3 passes through the first clamping plate 704, the second elastic member 703 returns to the original state, the second elastic member 703 drives the first clamping plate 704 to move downwards and reset, so that the first clamping plate 704 clamps the upper side sealing door 3, the upper side sealing door 3 is fixed, the upper side sealing door 3 is prevented from being reversed and reset, when people need to push the upper side sealing door 3 to be reversely closed, the first clamping plate 704 is firstly pulled to move upwards, the second elastic member 703 is compressed, the first clamping plate 704 is separated from the upper side sealing door 3, so that the first clamping plate 704 loosens the upper side sealing door 3, then people can push the upper side sealing door 3 to be reversely closed, and then loosens the first clamping plate 704, the second elastic member 703 is restored to its original state, and the second elastic member 703 drives the first clamping plate 704 to move downward for resetting.

The movable rack is characterized by further comprising a pedal mechanism 8, wherein the pedal mechanism 8 comprises fourth guide sleeves 801, fourth slide bars 802, pedals 803 and handles 804, as shown in fig. 1, 8, 9 and 10, the fourth guide sleeves 801 are symmetrically welded on the left side and the right side of the lower portion of the movable rack 2 front and back, the fourth guide sleeves 801 are connected with the fourth slide bars 802, the pedals 803 are connected between the two fourth slide bars 802 on the front side and are moved outwards through the pedals 803, people with insufficient height can stand on the pedals 803 to access files or articles, the pedals 803 are connected between the two fourth slide bars 802 on the rear side, and the handles 804 are connected to the outer sides of the two pedals 803.

When people get file or article in intensive 2 memory because of the height is not enough, can stimulate handle 804 to move to the outside to drive footboard 803 to move to the outside, then people can stand and access file or article on footboard 803, thereby make things convenient for the not enough people of height to access file or article, accomplish the access back with file or article when people, promote handle 804 to move to the inboard and reset, thereby drive footboard 803 to move to the inboard and reset can.

The movable rack is characterized by further comprising a limiting mechanism 9, the limiting mechanism 9 comprises fourth guide rods 901, second clamping plates 902, third elastic parts 903 and lower pressing plates 904, as shown in fig. 1 and 11, the lower parts of the front and rear sides of the movable rack 2 are symmetrically welded with the fourth guide rods 901 in a left-right mode, the second clamping plates 902 are connected between the two fourth guide rods 901 on the front side in a sliding mode, the second clamping plates 902 are also connected between the two fourth guide rods 901 on the rear side in a sliding mode, pedals 803 can be fixed by clamping the second clamping plates 902, the pedals 803 on the front and rear sides are respectively clamped by the second clamping plates 902 on the front and rear sides, the third elastic parts 903 are connected between the left and right sides of the bottoms of the two second clamping plates 902 and the movable rack 2, the four third elastic parts 903 are wound on the adjacent fourth guide rods 901, the left and right sides of the tops of the two second clamping plates 902 are connected with the lower pressing plates 904, the two pedals 803 are provided with clamping grooves 905 at intervals, the second card 902 at the front side is clamped in the two clamping slots 905 at the front side of the front pedal 803, and the second card 902 at the rear side is clamped in the two clamping slots 905 at the rear side of the rear pedal 803.

When people need to pull the handle 804 to move outwards, the pressing plate 904 is pressed to move downwards to drive the second clamping plate 902 to move downwards, the third elastic element 903 is compressed to enable the second clamping plate 902 to leave from the clamping groove 905, so that the pedal 803 is loosened from the second clamping plate 902, then people can pull the handle 804 to move outwards to drive the pedal 803 to move outwards, then the pressing plate 904 is loosened, the second clamping plate 902 and the pressing plate 904 are moved upwards under the action of the elastic force of the third elastic element 903, so that the second clamping plate 902 is contacted with the pedal 803, when the second clamping plate 902 is aligned with the clamping groove 905, the third elastic element 903 is restored, the third elastic element 903 drives the second clamping plate 902 and the pressing plate 904 to move upwards to reset, the second clamping plate 902 is clamped with the pedal 803, so that the pedal 803 is fixed, when people need to push the handle 804 to move inwards to reset, the pressing plate 904 is pressed again to move downwards, make second cardboard 902 loosen footboard 803, then people can promote handle 804 and move to the inboard and reset to drive footboard 803 and move to the inboard and reset, loosen holding down plate 904 once more, when second cardboard 902 aligns once more with draw-in groove 905, third elastic component 903 reconversion, third elastic component 903 drives second cardboard 902 and holding down plate 904 and moves to the upward and resets, it can to make second cardboard 902 block footboard 803.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention.

Claims

1. A side turning prevention device for a compact shelf comprises a first slide rail (1), a compact shelf (2) and a sealing door (3), wherein the bottom of the compact shelf (2) is connected with the first slide rail (1) in a sliding way, the front side of the compact shelf (2) is connected with the sealing door (3) in a rotating way, the rear side of the compact shelf (2) is also connected with the sealing door (3) in a rotating way for covering files, is characterized by also comprising an extension mechanism (4), a supporting mechanism (5) and a triggering mechanism (6), wherein the extension mechanism (4) for adjusting the gravity center is arranged at the bottom of the compact shelf (2), the supporting mechanism (5) for supporting is arranged at the lower part of the compact shelf (2), the supporting mechanism (5) is contacted with the ground to support the compact shelf (2), and the upper part of the compact shelf (2) is provided with a triggering mechanism (6) for moving the supporting mechanism (5).

2. The rollover prevention device for the compact shelving as claimed in claim 1, wherein the stretching mechanism (4) comprises a first guide sleeve (401), a first slide bar (402), a fixed shaft (403), a wheel (404), a rack (405), a fixed frame (406), a motor (407) and a gear (408), the front and the rear sides of the bottom of the compact shelving (2) are symmetrically connected with the first guide sleeve (401) left and right, the lower part of the first guide sleeve (401) is connected with the first slide bar (402) in a sliding manner, the fixed shaft (403) is connected between the front sides of the first slide bar (402) at the front side, the fixed shaft (403) is also connected between the rear sides of the first slide bar (402) at the rear side, the wheels (404) are rotatably connected at the left and the right sides of the fixed shaft (403), the rack (405) is connected at the bottom of the fixed shaft (403), the fixed frame (406) is connected in the middle of the bottom of the compact shelving (2), the fixed frame (406) is connected with a motor (407), an output shaft of the motor (407) is connected with a gear (408), racks (405) are all meshed with the gear (408), the gear (408) is driven by the motor (407), the gear (408) is driven to move when rotating, and the rack (405) drives the fixed shaft (403) and the wheel (404) to move.

3. The rollover prevention device for the compact shelf as set forth in claim 2, wherein the support mechanism (5) comprises a first guide rod (501), a slider (502) and a support block (503), the lower parts of the left and right sides of the compact shelf (2) are symmetrically connected with the first guide rod (501) in a front-back manner, the slider (502) is connected on the first guide rod (501) in a sliding manner, the support block (503) is connected on the outer side of the bottom of the slider (502), and the support block (503) is driven to move by the slider (502) moving on the first guide rod (501).

4. The rollover prevention device for the compact shelving as claimed in claim 3, wherein the triggering mechanism (6) comprises a second guide rod (601), a triggering rod (602), a second guide sleeve (603), a second sliding rod (604), a first elastic part (605), a diagonal rod (606), a second sliding rail (607) and a connecting seat (608), the second guide rod (601) is symmetrically connected to the upper parts of the left and right sides of the compact shelving (2) front and back, the triggering rod (602) is slidably connected between the second guide rods (601) on the left side, the upper sealing door (3) can be contacted with the triggering rod (602) when rotating, the triggering rod (602) is also slidably connected between the second guide rods (601) on the right side, the second guide sleeves (603) are connected to the lower parts of the left and right sides of the compact shelving (2), the second guide sleeves (603) are located above the first guide rod (501), the second sliding rods (604) are slidably connected to the second guide sleeves (603), the top of the second sliding rod (604) is connected with an inclined rod (606), the left inclined rod (606) is in contact with the left trigger rod (602), the right inclined rod (606) is in contact with the right trigger rod (602), the tops of the left and right second guide sleeves (603) are respectively connected with the left and right inclined rods (606) through a first elastic part (605), the bottoms of the second sliding rods (604) are respectively connected with a second sliding rail (607), the inner sides of the tops of the sliding blocks (502) are respectively connected with a connecting seat (608), the upper part of the left connecting seat (608) is in sliding connection with the left second sliding rail (607), the upper part of the right connecting seat (608) is in sliding connection with the right second sliding rail (607), the inclined rod (606), the second sliding rod (604) and the second sliding rail (607) move by touching the trigger rod (602) when the sealing door (3) is opened, and the second sliding rail (607) extrudes the connecting seat (608) to move, the connecting seat (608) drives the sliding block (502) to move, and the first elastic piece (605) is used for resetting the inclined rod (606), the second sliding rod (604), the second sliding rail and the connecting seat (608).

5. The rollover prevention device for the compact shelf according to claim 4, characterized in that it further comprises a fixing mechanism (7) for fixing the upper sealing door (3), the fixing mechanism (7) comprises a third guide sleeve (701), a third slide bar (702), a second elastic member (703), a first snap plate (704) and a third guide bar (705), the upper parts of the left and right sides of the compact shelf (2) are symmetrically connected with the third guide sleeve (701) in front and back, the third guide sleeve (701) is located below the second guide bar (601), the third guide sleeve (701) is connected with the third slide bar (702) in a sliding manner, the third slide bar (702) is connected with the first snap plate (704), the upper sealing door (3) rotates to contact with the upper part of the adjacent first snap plate (704), the third slide bar (702) is wound with the second elastic member (703), one end of the second elastic member (703) is connected with the bottom of the adjacent third guide sleeve (701), the other end of second elastic component (703) all with adjacent first cardboard (704), compact shelf (2) top left and right sides all front and back symmetric connection has third guide bar (705), first cardboard (704) upper portion all with adjacent third guide bar (705) sliding connection, touch first cardboard (704) when opening through sealing door (3), make first cardboard (704) motion, second elastic component (703) are used for first cardboard (704) to reset, make first cardboard (704) block sealing door (3).

6. The rollover prevention device for the compact shelf as claimed in claim 5, further comprising a pedal mechanism (8) for people with insufficient height, wherein the pedal mechanism (8) comprises fourth guide sleeves (801), fourth slide bars (802), pedals (803) and handles (804), the left and right sides of the lower part of the compact shelf (2) are symmetrically connected with the fourth guide sleeves (801) front and back, the fourth guide sleeves (801) are connected with the fourth slide bars (802), the pedals (803) are connected between the fourth slide bars (802) at the front side, the pedals (803) are connected between the fourth slide bars (802) at the rear side, the handles (804) are connected to the outer sides of the pedals (803), the pedals (803) are driven to move by the movement of the handles (804), and a person stands on the pedals (803) to access files.

7. The side turn preventing device for the compact shelving as claimed in claim 6, characterized in that it further comprises a limiting mechanism (9) for fixing the pedals (803), the limiting mechanism (9) comprises a fourth guide bar (901), a second clamping plate (902), a third elastic member (903) and a lower pressing plate (904), the lower parts of the front and rear sides of the compact shelving (2) are symmetrically connected with the fourth guide bar (901) in the left and right direction, the second clamping plate (902) is connected between the fourth guide bar (901) at the front side in a sliding way, the second clamping plate (902) is also connected between the fourth guide bar (901) at the rear side in a sliding way, the pedals (803) at the front and rear sides are respectively clamped by the second clamping plate (902) at the front and rear sides, the third elastic member (903) is connected between the left and right sides of the bottom of the second clamping plate (902) and the compact shelving (2), the third elastic members (903) are all wound on the adjacent fourth guide bar (901), the left side and the right side of the top of the second clamping plate (902) are both connected with a lower pressing plate (904), the second clamping plate (902) is driven to move through the movement of the lower pressing plate (904), the fixing of the pedal (803) is released, and the third elastic piece (903) is used for resetting the second clamping plate (902) and the lower pressing plate (904) and fixing the pedal (803) again.

8. The rollover prevention device for the compact shelf as set forth in claim 7, wherein the pallets (803) are spaced apart by clamping grooves (905), the second clamping plate (902) at the front side is clamped in the clamping grooves (905) at the front side of the front pallets (803), and the second clamping plate (902) at the rear side is clamped in the clamping grooves (905) at the rear side of the rear pallets (803).