CN111923002A

CN111923002A - Adjustable rack that has high security for building engineering

Info

Publication number: CN111923002A
Application number: CN202010867448.9A
Authority: CN
Inventors: 刘宽勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2020-11-13

Abstract

The invention discloses an adjustable placing rack with high safety for constructional engineering, and relates to the technical field of constructional engineering. This building engineering is with adjustable rack that has high security, through the controller, motor one, the worm wheel rim, the guard ring, the hinge bar, place the fill, the articulated slab, round pin axle and magnetite guarantee that building instrument is placing the placing of fighting removal in-process building engineering instrument for the building is stable, thereby guarantee that the device places the building engineering instrument and is removing and the stability when fixed, and the expansion helix angle through the worm is less than the friction angle production auto-lock effect of worm wheel rim and worm contact, and then guarantee the safety in utilization of the device, thereby solved current building engineering when placing article for the rack and not stable very easily cause the rack slope and adjust the rack in-process and probably lead to the fact the staff injured problem that the rack drops.

Description

Adjustable rack that has high security for building engineering

Technical Field

The invention relates to the technical field of constructional engineering, in particular to an adjustable placing rack with high safety for constructional engineering.

Background

The building engineering refers to an engineering entity formed by the construction of various house buildings and their auxiliary facilities and the installation activities of lines, pipelines and equipment matched with the house buildings, wherein the house buildings refer to the engineering which has a top cover, a beam column, a wall, a foundation and can form an internal space and meet the requirements of production, living, learning and public activities of people.

Nowadays, with the continuous development of social economy and the continuous improvement of building level, various buildings all over the country are pulled out of the ground, various buildings appear, the life quality of people is greatly improved, a placing rack is often needed in a building construction site, the placing rack is generally used for supporting and placing some tools, the placing rack is quite wide in application, but the placing rack in the prior art is single in structure, cannot lift required building engineering tools according to the requirements of users and supply the required building engineering tools to workers working at a certain height, further brings certain trouble to the workers working at a certain height, meanwhile, due to the fact that the tools for building are different in weight, the placing of the building tools is not convenient when the placing racks are used, and the existing adjustable building placing rack is poor in adjusting and stabilizing effect, and the security is also not high when adjusting the rack height, can lead to instrument for building engineering to drop and cause the staff injured in accommodation process, and unstable very easily causes the rack slope to cause the inconvenient people of potential safety hazard to use when current rack is placed, and current rack can not adapt to the complex environment removal on building site yet, thereby has brought certain trouble for building engineering's staff, has consequently provided a building engineering and has solved above-mentioned problem with the adjustable rack that has high security.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an adjustable placing rack with high safety for constructional engineering, which solves the problems that the placing rack is not stable and is easy to incline when articles are placed on the placing rack for constructional engineering, and workers are injured due to falling of tools for constructional engineering possibly in the process of adjusting the placing rack.

(II) technical scheme

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: an adjustable placing rack with high safety for constructional engineering comprises a bottom plate, wherein four corners of the upper surface of the bottom plate are fixedly connected with electric push rods, the four electric push rods are divided into a front group and a rear group and are respectively and fixedly connected to lower side surfaces of two supporting plates, the centers of the upper side surfaces of the two supporting plates are fixedly connected with vertical plates, the centers of the upper end surfaces of the two vertical plates are respectively and fixedly connected with outer rings of bearings, the two inner rings of bearings are respectively and fixedly connected with the front end and the rear end of a supporting column, the outer surface of the center of the supporting column is fixedly connected with two connecting rings, the opposite surfaces of the two connecting rings are uniformly and movably connected with a plurality of transmission shafts, the centers of the plurality of transmission shafts are respectively and fixedly connected with rolling discs, the front ends of the plurality of transmission shafts penetrate through the front connecting rings and are, a plurality of rolling discs are fixedly connected with pulling ropes, the other ends of the pulling ropes are fixedly connected with one ends of corresponding connecting plates, the front sides and the back sides of the other ends of the connecting plates are fixedly connected with telescopic rods, the other ends of the telescopic rods are fixedly connected with the inner side surface of a protective ring, springs are sleeved on the telescopic rods, two ends of each spring are fixedly connected with the connecting plates and the opposite surfaces of the protective ring respectively, the centers of the other ends of the connecting plates are fixedly connected with hinge rods, the other ends of the hinge rods penetrate through the protective ring to be arranged on the outer side of the protective ring through sliding sleeves, the sliding sleeves are uniformly and fixedly connected on the outer surfaces of the left side and the right side of the protective ring, one ends of the hinge rods arranged on the outer side surface of the protective ring are hinged with hinged plates through hinge pins, and a group of every two hinged plates are fixedly connected with, the protection ring comprises a protection ring inner ring surface, two connection ring outer ring surfaces, a worm wheel ring, a worm shaft, a worm right-end optical shaft, a motor I, a motor II, a mounting groove, a mounting plate, a worm wheel ring, a worm shaft, a mounting groove and a mounting plate, wherein the protection ring inner ring surface and the two connection ring outer ring surfaces are fixedly connected through a plurality of fixing plates, the worm wheel ring is fixedly connected to the front side surface of the protection ring, the worm wheel ring is in transmission connection with a worm, the.

Preferably, both ends all swing joint has the back shaft about the bottom plate, two the equal fixedly connected with of side is followed the sprocket around the back shaft, and four two liang of a set of and all connect through chain drive around the follow sprocket two the equal transmission in chain center department is connected with the main sprocket, two the main sprocket is fixed connection respectively on two output shafts around the double-shaft motor, double-shaft motor fixed connection is in bottom plate center department.

Preferably, two equal even fixedly connected with a plurality of minutes clamp plates on the sprocket, the biax motor input is connected with the controller output electricity.

Preferably, the unfolding spiral angle of the worm is smaller than the friction angle between the worm wheel ring and the worm, the spring is a tension spring, and the height and the width of the placing hopper are matched with the height and the width of a hinge opening formed in the hinge rod.

Preferably, the inside fixedly connected with battery one of support column, the rear side the inside fixedly connected with battery two of backup pad.

Preferably, the output of battery two is connected with the controller input electricity, be provided with the wireless connector in the battery one, and wireless connector control end and controller input radio connection, it is a plurality of the small motor input all is connected with wireless connector output electricity, the controller output is connected with four electric putter and motor one input electricity, controller fixed connection is on preceding collateral branch fagging leading flank.

Preferably, the front side and the rear side of each vertical plate are fixedly connected with one end of a plate rib, and the other ends of the plate ribs are respectively and fixedly connected to the upper side surfaces of the two supporting plates.

Preferably, it is a plurality of place equal fixedly connected with magnetite in fighting, it is a plurality of place the fill and be the lower extreme and heavier setting.

(III) advantageous effects

The invention has the beneficial effects that:

1. this building engineering is with adjustable rack that has high security, through the controller, motor one, worm and worm wheel circle drive the guard ring and rotate, and then rotate through the guard ring and will drive a plurality of hinge arms and rotate, a plurality of hinge arms rotate and will drive a plurality of fill of placing and rotate under the support of articulated slab and round pin axle, place the fill and place the instrument for building engineering in placing the fill when rotating the minimum by the staff, and will be downward all the time under the support of gravity placing the fill rotation in-process, also utilize the magnetite of placing fill inner wall fixed connection to guarantee simultaneously that the instrument for building engineering is placing the stability of placing of the instrument for building engineering of placing fill removal in-process, thereby guarantee that the device places the stability of building engineering apparatus when removing and fixing, and then guarantee that the device places the security of building engineering apparatus, and the device can be less than the friction angle that worm wheel circle and worm contacted through the expansion helix angle of motor under the sudden damage condition and produce Self-locking effect, and then further guarantee the safety in utilization of the device to unstable very easily causes the rack slope and adjusts the rack in-process and probably lead to building engineering to use the instrument to drop and cause the injured problem of staff when having solved current rack for building engineering and placing object article.

2. The adjustable placing rack with high safety for the building engineering controls the corresponding small motor to reversely rotate through the controller and the wireless connector, further drives the corresponding hinge rod to extend to the outer side of the protective ring under the support of the corresponding sliding sleeve through the corresponding rolling disc between the two connecting rings, the corresponding pulling rope, the corresponding connecting plate, the corresponding telescopic rod and the spring, further adjusts the corresponding distance of the placing hopper, thereby being convenient for rapidly sending tools for the building engineering to the hands of workers working at a certain height, and when the tools for the building engineering need to be sent to a higher distance, the controller can control the extension of the four electric push rods, further adjusting the height position of the device, further ensuring the practicability and the adjusting functionality of the device, and then further guaranteed the device's functionality to solved current rack structure singleness, can not lift the building engineering apparatus that needs according to user's demand and supply with the staff of operation on a take the altitude, and then brought certain trouble problem for the staff of operation on a take the altitude.

3. This building engineering is with adjustable rack that has high security, it rotates to control the biax motor through the controller, the biax motor rotates and will drive two main sprocket and rotate, two main sprocket rotate and will drive two chains and rotate, two chains rotate and will take four to rotate under the support of two back shafts from the sprocket, two back shafts will guarantee the position stability of self through the bottom plate at the rotation in-process, and then guarantee that four are supported two chains from the sprocket and rotate steadily under the power of two main sprocket, and then guarantee that the device can be at complicated building engineering building site steady removal through a plurality of partial pressure boards of fixed connection on two chains, and the chain that the device set up and a plurality of partial pressure boards will also guarantee the stability of placing of the device when the device need not remove, and then further guarantee the safety in utilization of the device, thereby solved when current rack is placed and cause the rack slope very easily and cause the inconvenient people of potential safety hazard to incline Use, current rack also can not adapt to the complex environment of building site and remove moreover to bring certain troublesome problem for building engineering's staff, and then make the device more practical.

Drawings

FIG. 1 is a schematic front sectional view of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic left-side view of a partial cross-sectional structure of the present invention;

FIG. 4 is a schematic perspective view of the bucket of the present invention;

FIG. 5 is a schematic left side view of a partial cross-sectional structure of a connection ring according to the present invention;

fig. 6 is a schematic perspective view of a two-shaft motor according to the present invention.

In the figure: 1 chain, 2 minute pressing plates, 3 slave chain wheels, 4 supporting shafts, 5 bottom plates, 6 electric push rods, 7 supporting plates, 8 storage battery I, 9 plate ribs, 10 placing buckets, 11 hinged plates, 12 hinged rods, 13 pin shafts, 14 worm wheel rings, 15 sliding sleeves, 16 telescopic rods, 17 springs, 18 connecting plates, 19 pulling ropes, 20 transmission shafts, 21 winding disks, 22 storage battery II, 23 connecting rings, 24 fixing plates, 25 vertical plates, 26 double-shaft motors, 27 main chain wheels, 28 small motors, 29 supporting columns, 30 placing grooves, 31 motor I, 32 worms, 33 controllers, 34 protecting rings and 35 magnets.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 6, the present invention provides a technical solution: an adjustable placing rack with high safety for construction engineering comprises a bottom plate 5, wherein electric push rods 6 are fixedly connected to four corners of the upper surface of the bottom plate 5, the four electric push rods 6 are divided into a front group and a rear group and are respectively and fixedly connected to the lower side surfaces of two supporting plates 7, the electric push rods 6 are used for adjusting the position of a placing hopper 10 in a first-stage manner, so that the height of the device can be stably adjusted, workers at a certain height can conveniently take construction engineering tools, and further the functionality of the device is ensured, vertical plates 25 are fixedly connected to centers of the upper side surfaces of the two supporting plates 7, bearing outer rings are fixedly connected to centers of the upper end surfaces of the two vertical plates 25, the two bearing inner rings are respectively and fixedly connected with the front end and the rear end of a supporting column 29, the supporting column 29 is arranged for supporting and connecting relative positions of two connecting rings 23, and simultaneously ensuring stable rotation, the outer surface of the center of the supporting column 29 is fixedly connected with two connecting rings 23, the opposite surfaces of the two connecting rings 23 are uniformly and movably connected with a plurality of transmission shafts 20, the transmission shafts 20 are used for supporting a winding disc 21 and simultaneously ensuring that the winding disc 21 can be wound and loosened by being driven by a small motor 28 to pull a rope 19, so as to ensure the secondary adjusting effect generated by the movement of the hinge rod 12 realized by the device through a spring 17 and a telescopic rod 16, so as to further ensure the adjusting functionality of the device, the centers of the plurality of transmission shafts 20 are fixedly connected with the winding disc 21, the front ends of the plurality of transmission shafts 20 penetrate through the front connecting ring 23 and are fixedly connected with the small motor 28, the small motor 28 is used for rotating the electric transmission shafts 20 to wind and loosen the pulling rope 19, so as to ensure the functionality of the device, and the plurality of small motors 28 are uniformly and fixedly connected on the front, the winding disks 21 are fixedly connected with pulling ropes 19, the other ends of the pulling ropes 19 are fixedly connected with one ends of corresponding connecting plates 18, the connecting plates 18 are used for connecting the pulling ropes 19, the telescopic rods 16, the springs 17 and the hinge rods 12 and further ensuring the functionality of the device, the telescopic rods 16 are fixedly connected to the front side and the rear side of the other ends of the connecting plates 18, the other ends of the telescopic rods 16 are fixedly connected to the inner side surface of a protective ring 34, the springs 17 are sleeved on the telescopic rods 16, the springs 17 are arranged for ensuring the resilience of the hinge rods 12 and the adjustability of the hinge rods 12 and further ensuring the structural functionality of the device, the two ends of the springs 17 are fixedly connected with the opposite surfaces of the connecting plates 18 and the protective ring 34 respectively, the hinge rods 12 are fixedly connected to the centers of the other ends of the connecting plates 18, the other ends of the hinge rods 12 penetrate through the protective ring 34 through sliding sleeves 15 and are arranged outside the protective ring 34, the sliding sleeves 15 are uniformly and fixedly connected to the outer surfaces of the left side and the right side of the protective ring 34, the hinge plates 11 are hinged to one ends of the hinge rods 12 arranged on the outer side surface of the protective ring 34 through hinge pins 13, the hinge plates 11 are arranged to connect the hinge rods 12 with the placing buckets 10 and further ensure the structural connection stability of the device, the hinge plates 11 are fixedly connected with the placing buckets 10 in a group of two hinge plates 11, the inner ring surface of the protective ring 34 is fixedly connected with the outer ring surfaces of the two connecting rings 23 through fixing plates 24, the front side surface of the protective ring 34 is fixedly connected with the worm wheel rim 14, the worm wheel rim 14 is in transmission connection with the worm 32, the worm wheel rim 14 and the worm 32 are arranged to ensure the stable slow rotation of the protective ring 34 and further facilitate workers to place constructional engineering tools into the placing buckets 10, so as to ensure the convenient use of the device and further ensure that the left-end optical axis of the worm 32 is fixedly connected to, the right end optical axis of the worm 32 is fixedly connected to the output shaft of the first motor 31, the first motor 31 is fixedly connected to the inner wall of the placing groove 30, and the placing groove 30 is formed in the front supporting plate 7.

Equal swing joint in both ends has back shaft 4 about bottom plate 5, the equal fixedly connected with in side is from sprocket 3 around two back shafts 4, the setting of sprocket 3 and chain 1 is for guaranteeing the device's structurality, and then guarantee the device's mobility, and four follow sprocket 3 around two liang of a set of and all connect through 1 transmission of chain, two 1 center departments of chain are all the transmission and are connected with main sprocket 27, two main sprocket 27 respectively fixed connection are on two output shafts around double-

shaft motor

26, 26 fixed connection of double-shaft motor are in 5 center departments of bottom plate, its purpose is in order to guarantee the device at the complicated construction place smooth movement of building engineering.

Equal a plurality of minute clamp plates of fixedly connected with 2 on two sprockets 3, its purpose is in order to assist two chains 1 to guarantee that the device can steadily move at the complicated construction place of building engineering, also is the stable placement when guaranteeing the device is unmovable simultaneously, and then further guarantees the safety in utilization of the device, and biax motor 26 input is connected with controller 33 output electricity.

The expansion helix angle of worm 32 is less than the friction angle that worm wheel rim 14 and worm 32 contacted, its purpose is in order to guarantee that the device produces the stability that self-locking effect guaranteed guard ring 34 with worm 32 when motor 31 damages, and then further guarantee the security of the device, thereby improve the device's practicality, spring 17 is tension spring 17, place the height of fighting 10 and the width and the articulated mouthful height and the width looks adaptation that articulated rod 12 was seted up, its purpose can receive gravity perpendicularly downwards all the time in order to guarantee to place to fight 10, and then guarantee the device's security.

The first storage battery 8 is fixedly connected inside the supporting column 29, and the second storage battery 22 is fixedly connected inside the rear supporting plate 7, so that the mobile usability of the device is ensured, and the practicability of the device is improved.

The output of battery two 22 is connected with controller 33 input electricity, be provided with the wireless connector in battery one 8, and wireless connector control end and controller 33 input radio connection, its purpose is to avoid the connection of electric lines to cause electric wire and the winding of guard ring 34, and then guarantee the device's rational in infrastructure nature, a plurality of small motor 28 inputs all are connected with wireless connector output electricity, controller 33 output is connected with four electric putter 6 and 31 input electricity of motor, controller 33 fixed connection is on preceding side fagging 7 leading flank, its purpose is in order to ensure the device's facilitates the use controllability, and then make the device's use more convenient, thereby guarantee the device's functionality.

The equal fixedly connected with slab muscle 9 one end in side around two vertical boards 25, four slab muscle 9 other ends are fixed connection respectively on two backup pad 7's the last side, and its purpose is firm in order to stabilize vertical board 25's relative position, and then guarantees the device's structural stability.

A plurality of equal fixedly connected with magnetite 35 in fighting 10 of placing, its purpose is in order to place the stable bucket 10 of placing of most of iron apparatus for building engineering, and then avoids building engineering to drop from placing bucket 10 in to guarantee the device's security, a plurality of buckets 10 of placing are the lower extreme heavier setting, and its purpose is downward all the time in order to guarantee to place bucket 10, and then further guarantees the device's security performance.

The method comprises the following operation steps:

s1, when the device is used for placing the device for the construction engineering, the rotation of the motor 31 can be controlled by the controller 33, the rotation of the motor 31 drives the worm 32 to rotate, the rotation of the worm 32 drives the worm wheel rim 14 to rotate, the rotation of the worm wheel rim 14 drives the guard ring 34 to rotate, the rotation of the guard ring 34 drives the plurality of hinge rods 12 to rotate, the rotation of the plurality of hinge rods 12 drives the plurality of placing buckets 10 to rotate under the support of the hinge plates 11 and the hinge pins 13, the tools for the construction engineering are placed in the placing buckets 10 by workers when the placing buckets 10 rotate to the lowest point, and are always downward under the support of gravity in the rotation process of the placing buckets 10, and the magnets 35 fixedly connected with the inner wall of the placing buckets 10 are also used for ensuring the stable placement of the tools for the construction engineering in the moving process of the placing buckets 10, so as to ensure the stability of the device for placing the tools for the construction engineering in moving and fixing, the safety of placing the building engineering tool in the device is further ensured, even if the motor I31 in the device suddenly damages the device, the self-locking effect is generated because the expansion spiral angle of the worm 32 is smaller than the friction angle of the worm wheel ring 14 in contact with the worm 32, the stable placement of the protective ring 34 is further ensured, and the use safety of the device is further improved;

s2, when the device needs to be adjusted, the corresponding wireless connector is controlled by the corresponding button on the controller 33, and then the corresponding small motor 28 is controlled to reversely rotate, so as to drive the corresponding winding disc 21 between the two connecting rings 23 to reversely rotate, the corresponding winding disc 21 reversely rotates to drive the corresponding pulling rope 19 to be loosened, the corresponding pulling rope 19 is loosened to loosen the corresponding connecting plate 18, the corresponding connecting plate 18 is loosened to move the pulling plate to the outer side of the protective ring 34 through the corresponding telescopic rod 16 and the spring 17, so as to drive the corresponding hinge rod 12 to extend to the outer side of the protective ring 34 under the support of the corresponding sliding sleeve 15, and further the corresponding distance of the placing bucket 10 is adjusted, so that the building engineering tools can be conveniently and quickly sent to workers working at a certain height, when the position of the placing bucket 10 does not need to be adjusted, the small motor 28 can be controlled by the controller 33, the hinge rod 12 is further recovered by the corresponding pulling rope 19 coiled by the corresponding forward rotation of the coiling plate 21, and when a tool for construction engineering needs to be sent to a higher distance, the controller 33 can control the four electric push rods 6 to extend, so that the height position of the device is further adjusted, and when the tool needs to be shortened, the controller 33 can control the four electric push rods 6 to shorten, so that the adjustability and the performance of the device are ensured, and the practicability of the device is ensured;

s3, when the device needs to be moved, the controller 33 can control the rotation of the dual-shaft motor 26, the rotation of the dual-shaft motor 26 can drive the two main chain wheels 27 to rotate, the rotation of the two main chain wheels 27 can drive the two chains 1 to rotate, the rotation of the two chains 1 can drive the four auxiliary chain wheels 3 to rotate under the support of the two support shafts 4, the two support shafts 4 can ensure the position stability of the device through the bottom plate 5 in the rotating process, further ensure the stable rotation of the two chains 1 supported by the four auxiliary chain wheels 3 under the power of the two main chain wheels 27, further ensure the stable movement of the device in complex construction sites through the plurality of pressure dividing plates 2 fixedly connected on the two chains 1, and when the device does not need to be moved, the chain 1 and the plurality of pressure dividing plates 2 arranged on the device can also ensure the placement stability of the device, further ensure the use safety of the device, thereby ensuring the utility of the device.

The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only illustrative of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an adjustable rack with high security for building engineering, includes bottom plate (5), its characterized in that: bottom plate (5) upper surface four corners department all fixedly connected with electric putter (6), four electric putter (6) divide into around two sets of and respectively fixed connection on the downside of two backup pads (7), two the equal fixedly connected with vertical board (25) of side center department, two on vertical board (25) the equal fixedly connected with bearing outer lane of side center department, and two bearing inner rings are fixedly connected with support column (29) front and back both ends respectively, support column (29) center department surface fixedly connected with two go-between (23), two the even swing joint of go-between (23) opposite face has a plurality of transmission shafts (20), and is a plurality of transmission shaft (20) center department all fixedly connected with rolling dish (21), and is a plurality of transmission shaft (20) front end all passes front side go-between (23) and fixedly connected with small motor (28), the small motors (28) are uniformly and fixedly connected to the front side face of a front side connecting ring (23), the winding disc (21) is fixedly connected with a pulling rope (19), the other ends of the pulling ropes (19) are fixedly connected with one end of a corresponding connecting plate (18), the front side and the rear side of the other end of each connecting plate (18) are fixedly connected with telescopic rods (16), the other ends of the telescopic rods (16) are fixedly connected to the inner side face of a guard ring (34), springs (17) are sleeved on the telescopic rods (16), two ends of each spring (17) are fixedly connected with opposite faces of the connecting plates (18) and the guard ring (34), the centers of the other ends of the connecting plates (18) are fixedly connected with hinged rods (12), and the other ends of the hinged rods (12) penetrate through the guard ring (34) through sliding sleeves (15) and are arranged on the outer side of the guard ring (34), the sliding sleeves (15) are uniformly and fixedly connected to the outer surfaces of the left side and the right side of the protective ring (34), the hinge rods (12) are arranged at one end of the outer side surface of the protective ring (34) and are hinged with hinge plates (11) through hinge pins (13), the hinge plates (11) are in two-by-two group and are respectively and fixedly connected with a plurality of placing buckets (10), the inner ring surface of the protective ring (34) is fixedly connected with the outer ring surfaces of the two connecting rings (23) through a plurality of fixing plates (24), the front side surface of the protective ring (34) is fixedly connected with a worm wheel rim (14), the worm wheel rim (14) is in transmission connection with a worm (32), the left end optical axis of the worm (32) is fixedly connected to the left side surface of the placing groove (30), the right end optical axis of the worm (32) is fixedly connected to the output shaft of the motor I (31), and the motor I (31) is fixedly connected, the placing groove (30) is arranged in the front side supporting plate (7).

2. The adjustable rack with high safety for construction engineering according to claim 1, characterized in that: the equal swing joint in both ends has back shaft (4), two about bottom plate (5) the equal fixedly connected with in side is from sprocket (3) around back shaft (4), and four two liang of a set of and all connect through chain (1) transmission around from sprocket (3), two chain (1) center department all transmits and is connected with main sprocket (27), two main sprocket (27) fixed connection is on two output shafts around double-shaft motor (26) respectively, double-shaft motor (26) fixed connection is located at bottom plate (5) center.

3. The adjustable rack with high safety for construction engineering according to claim 2, characterized in that: two equal even fixedly connected with a plurality of minute clamp plates (2) on sprocket (3), biax motor (26) input is connected with controller (33) output electricity.

4. The adjustable rack with high safety for construction engineering according to claim 1, characterized in that: the unfolding spiral angle of the worm (32) is smaller than the friction angle between the worm wheel ring (14) and the worm (32), the spring (17) is a tension spring (17), and the height and the width of the placing hopper (10) are matched with the height and the width of a hinge opening formed in the hinge rod (12).

5. The adjustable rack with high safety for construction engineering according to claim 1, characterized in that: the inside fixedly connected with battery one (8) of support column (29), the rear side the inside fixedly connected with battery two (22) of backup pad (7).

6. The adjustable rack with high safety for construction engineering according to claim 5, characterized in that: the output and the controller (33) input of battery two (22) are connected electrically, be provided with the wireless connector in battery one (8), and wireless connector control end and controller (33) input radio connection, it is a plurality of micromotor (28) input all is connected with wireless connector output electricity, controller (33) output is connected with four electric putter (6) and motor one (31) input electricity, controller (33) fixed connection is on front side backup pad (7) leading flank.

7. The adjustable rack with high safety for construction engineering according to claim 1, characterized in that: the front side and the rear side of each vertical plate (25) are fixedly connected with one end of a plate rib (9), and the other end of each plate rib (9) is fixedly connected to the upper side of each support plate (7).

8. The adjustable rack with high safety for construction engineering according to claim 1, characterized in that: it is a plurality of place equal fixedly connected with magnetite (35) in fill (10), it is a plurality of place fill (10) and be the heavier setting of lower extreme.