CN115597570A

CN115597570A - Steel structure aerial measuring device and construction method

Info

Publication number: CN115597570A
Application number: CN202211373905.4A
Authority: CN
Inventors: 张帅; 钱元弟; 倪淑梅; 袁军文
Original assignee: China MCC17 Group Co Ltd
Current assignee: China MCC17 Group Co Ltd
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2023-01-13
Anticipated expiration: 2042-11-04
Also published as: CN115597570B

Abstract

The invention discloses a steel structure aerial measuring device and a construction method, and belongs to the technical field of steel structure measurement. The measuring device comprises a base, wherein a supporting seat is arranged on the base, and a limiting mechanism is arranged on the supporting seat and comprises a clamping component and a clamping component; the clamping component comprises a clamping ring and a clamping groove formed in the clamping ring; the clamping assembly comprises a sliding plate and a clamping plate, wherein one end of the sliding plate is connected with the supporting seat, the other end of the sliding plate is connected with the clamping plate, the sliding plate drives the clamping plate to move in the horizontal direction, and the clamping plate slides in the vertical direction. The limiting mechanism is arranged, so that the horizontal and vertical limiting of the measuring instrument can be realized, and the stability of the measuring instrument in the working process can be ensured. In addition, the base of the measuring device is also provided with a protection mechanism, so that damage to the measuring instrument caused by falling of other articles can be effectively prevented.

Description

Steel structure aerial measuring device and construction method

Technical Field

The invention belongs to the technical field of steel structure measurement, and particularly relates to an aerial measurement device for a steel structure and a construction method.

Background

When a steel structure building is built, in order to ensure that a steel member can be horizontally installed, a laser level gauge is commonly used for measuring a reference line. In the actual construction process, because the environment of a construction site is complex, construction needs to be carried out in mid-air sometimes, and the laser level measuring instrument is difficult to be directly placed on the ground for use.

In the prior art, a base which can be hung on a building beam is usually used for supporting the laser level measuring instrument, so that the laser level measuring instrument can normally work. However, in the actual operation process, because the laser level measuring instrument is directly placed on the supporting plate of the base, the situation that a worker accidentally touches the laser level measuring instrument or an object falls to smash the laser level measuring instrument easily occurs, so that the laser level measuring instrument shakes or even falls down to fall off from the supporting plate, thereby affecting the measuring result and even causing the situation that the measuring instrument is broken.

Through retrieval, the application with the Chinese patent application number of 202123187562.6 and the application date of 2021.12.17 discloses a measurement and correction base for a steel column of an ultra-high-rise steel structure. This application includes the base main part, and the mounting groove has been seted up at the top middle part of base main part, and the square groove has been seted up to one side of base main part, and the top inner wall in square groove has seted up the extending groove, and the opening part activity in square groove has the commentaries on classics board, changes the positive bottom mounting of board and runs through and be provided with the pivot, and the both ends of pivot all are connected through bearing and square groove inner wall rotation. This application passes through handle groove pulling fixed plate and changes the board rotation, makes and changes the board and roll out to drive the annular plate and roll out, change the board and roll out the back horizontal bracket on the dog, the annular plate keeps the level after, can erect and place the measuring instrument. But the connection stability of the application to the measuring instrument needs to be further improved.

Disclosure of Invention

1. Problems to be solved

The invention provides a steel structure aerial measuring device and a construction method, aiming at the problems that the existing horizontal measuring equipment is poor in stability when operated at high altitude, so that the measuring result is influenced, and even the existing horizontal measuring equipment falls off. The measuring device can limit the measuring instrument in the horizontal and vertical directions, and ensure the stability of the measuring instrument in the working process, thereby ensuring the accuracy of the measuring result; in addition, the damage to the measuring instrument caused by the falling of other articles can be effectively prevented.

2. Technical scheme

In order to solve the problems, the technical scheme adopted by the invention is as follows:

the invention discloses a steel structure aerial measuring device, which comprises a base, wherein a supporting seat is arranged on the base, and a limiting mechanism is arranged on the supporting seat and comprises a clamping component and a clamping component; the clamping component comprises a clamping ring and a clamping groove formed in the clamping ring; the clamping assembly comprises a sliding plate and a clamping plate, wherein one end of the sliding plate is connected with the supporting seat, the other end of the sliding plate is connected with the clamping plate, the sliding plate drives the clamping plate to move in the horizontal direction, and the clamping plate moves in the vertical direction.

Further, the clamping assembly further comprises a first guide rod, an adjusting plate and an elastic piece, wherein the first guide rod is located in a limiting hole in the supporting seat, the sliding plate is sleeved on the first guide rod, one end of the adjusting plate is connected with the clamping plate, the other end of the adjusting plate is inserted into a sliding groove formed in the sliding plate, one end of the elastic piece is connected with the inner wall of the limiting hole, and the other end of the elastic piece is connected with the sliding plate.

Furthermore, the sliding plate is also provided with a fixing component, the fixing component comprises a screw rod, one end of the screw rod penetrates through the sliding plate to abut against the surface of the adjusting plate, and the other end of the screw rod is connected with a rotating block.

Furthermore, the sliding plate is connected with an adjusting mechanism, and the adjusting mechanism comprises a telescopic rod, an extrusion assembly and a transmission assembly; the extrusion subassembly include the push pedal and change the board, wherein, the push pedal erects on the telescopic link, the one end of changeing the board is articulated with the push pedal, the other end is connected with drive assembly's driving plate, the slide is connected to this driving plate.

Furthermore, the connecting part of the push plate and the rotating plate is provided with a baffle plate, the contact part of the rotating plate and the supporting seat is provided with a roller, and the supporting seat is also provided with a second guide rod for the driving plate to move.

Further, adjustment mechanism still include locating component, this locating component includes dead lever, locating plate and L shaped plate, and wherein, the one end setting of dead lever is on the supporting seat, and the locating plate is connected to the other end, L shaped plate one end is connected with the push pedal, the other end cooperatees with the locating plate.

Further, still include protection machanism, protection machanism include first connecting plate and guard plate, be equipped with two sets of picture pegs on this first connecting plate, the guard plate passes through the slot on the picture peg and is connected with first connecting plate.

Further, first connecting plate be connected with the base through the arc, and the end connection of picture peg has the guide board.

Furthermore, the protection mechanism further comprises an anti-slip assembly, the anti-slip assembly comprises a support rod, a second connecting plate and a magnetic ring, the magnetic ring is sleeved on the support rod and is adsorbed to a knob at the end of the support rod, one end of the second connecting plate is connected with the magnetic ring, and the other end of the second connecting plate is provided with a sucking disc.

The invention relates to a construction method of a steel structure aerial measuring device, which utilizes the measuring device to measure and comprises the following steps,

s1, fixing a measuring device on a cross beam of a building;

s2, pressing a push plate of the adjusting mechanism, driving the sliding plates to be away from each other through the driving plate, and limiting the push plate through the positioning assembly;

s3, placing the measuring instrument on the clamping ring, and clamping the elastic clamping blocks on the periphery of the bottom of the measuring instrument with the clamping grooves;

s4, releasing the limit of the positioning assembly on the push plate, moving the clamping plate to enable the upper end of the clamping plate to press the outer edge of the measuring instrument, and locking and limiting the moving clamping plate through the fixing assembly;

s5, inserting the protection plate into the plug board, and adsorbing and positioning the protection plate through the sucking disc.

3. Advantageous effects

Compared with the prior art, the invention has the beneficial effects that:

(1) According to the structure of the steel structure aerial measuring device, the limiting mechanism is arranged, so that the measuring instrument can be limited in the horizontal and vertical directions, and the stability of the measuring instrument in the working process is ensured; in addition, the damage to the measuring instrument caused by the falling of other articles can be effectively prevented through the arrangement of the protection mechanism; the setting of adjustment mechanism can make the spacing operation to the measuring apparatu more convenient.

(2) According to the structure of the steel structure aerial measuring device, through further optimization design of the specific structure of the limiting mechanism, the clamping component comprises the clamping ring and the clamping groove formed in the clamping ring, and the measuring instrument is clamped with the clamping groove through the elastic clamping block at the bottom of the measuring instrument, so that horizontal limiting of the measuring instrument is realized; the clamping assembly comprises a sliding plate, an adjusting plate, an elastic piece and clamping plates, the sliding plate is elastically extruded through the elastic piece, the clamping plates are close to the two sides of the measuring instrument, the height of the clamping plates is adjusted through the adjusting plate, the measuring instrument is compressed from the upper side, and the effect of limiting the vertical direction of the tight measuring instrument is achieved.

(3) According to the structure of the steel structure aerial measuring device, the specific structure of the adjusting mechanism is further optimized, the structure comprises the telescopic rod, the push plate, the rotating plate and the transmission plate, the push plate is pressed, the push plate drives the transmission plates to be away from each other through the rotating plate, so that the sliding plates are driven to be away from each other, a worker can open the limiting mechanism through one hand, and the operation is more convenient and rapid; meanwhile, the second guide rod can play a role in guiding and limiting the movement of the transmission plate; the arrangement of the roller can effectively reduce the friction resistance between the rotating plate and the supporting seat.

(4) According to the structure of the steel structure aerial measuring device, the protection mechanism comprises the protection plate, the plug board, the guide plate and the sucker, the protection plate is connected with the first connecting plate through the plug board, the guide plate is arranged to guide the sliding path of the protection plate, and a worker can conveniently slide the protection plate into the slot of the plug board; the setting of sucking disc can adsorb the location to the guard plate, guarantees the stability in its working process.

Drawings

FIG. 1 is a schematic structural diagram of a steel structure aerial measuring device of the present invention;

FIG. 2 is a schematic structural view of the support base of the present invention;

FIG. 3 is a schematic structural view of the support base of the present invention without a measuring instrument installed thereon;

FIG. 4 is an enlarged partial schematic view of FIG. 3;

FIG. 5 is a schematic structural view of a spacing mechanism according to the present invention;

FIG. 6 is a cross-sectional view of the present invention at the slide plate;

FIG. 7 is a schematic view of the guard mechanism of the present invention;

FIG. 8 is an enlarged view taken at A in FIG. 7;

FIG. 9 is a schematic view of the connection between the adjustment mechanism and the limiting mechanism of the present invention;

fig. 10 is a schematic structural view of the rotating plate of the present invention.

In the figure: 1. a base; 2. a hanging rod; 3. reinforcing ribs; 4. a supporting seat; 5. a measuring instrument;

6. a limiting mechanism; 61. a clamping component; 611. a snap ring; 612. a card slot; 62. a clamping assembly; 621. a first guide bar; 622. a slide plate; 623. a chute; 624. an adjusting plate; 625. a splint; 626. an elastic member; 627. a limiting hole; 628. a gasket; 629. a fixing assembly; 6291. a screw; 6292. rotating the block;

7. a protection mechanism; 71. a fixing plate; 72. an arc-shaped plate; 73. a first connecting plate; 74. inserting plates; 75. a protection plate; 76. a guide plate; 77. an anti-slip assembly; 771. a support bar; 772. a second connecting plate; 773. a pressure lever; 774. a suction cup; 775. a magnetic ring; 776. a knob;

8. an adjustment mechanism; 81. a telescopic rod; 82. an extrusion assembly; 821. pushing a plate; 822. rotating the plate; 823. a baffle plate; 824. a drum; 83. a transmission assembly; 831. a second guide bar; 832. a drive plate; 84. a positioning assembly; 841. fixing the rod; 842. positioning a plate; 843. an L-shaped plate; 844. and (4) a groove.

Detailed Description

The invention is further described with reference to specific examples.

Example 1

As shown in fig. 1 and 2, the steel structure aerial measuring device of the embodiment comprises a base 1, wherein the base 1 is integrally step-shaped, two hanging rods 2 are welded on the step of the upper portion of the base 1, reinforcing ribs 3 are welded on the arc surfaces of the hanging rods 2, and the lower ends of the reinforcing ribs 3 are welded on the side wall of the base 1. Be equipped with supporting seat 4 on the lower part step of base 1, be equipped with stop gear 6 on the supporting seat 4, through setting up stop gear 6, reach and restrict the position of measuring apparatu 5, prevent measuring apparatu 5 slip as far as possible and empty to make things convenient for the staff to carry out normal operating to measuring apparatu 5. The upper step of the base 1 is further provided with a protection mechanism 7, and the protection mechanism 7 can prevent falling objects from smashing the measuring instrument 5 as much as possible, so that the service life of the measuring instrument 5 is prolonged. Of course, the protective means 7 should not interfere with the normal use of the measuring device 5 when it is illuminated upwards. The support seat 4 is further provided with an adjusting mechanism 8, and by means of the adjusting mechanism 8, a worker can slide the two sliding plates 622 by using one hand and limit the positions of the sliding plates 622, so that the operation of the worker is facilitated.

The specific structures and functions of the limiting mechanism 6, the protecting mechanism 7 and the adjusting mechanism 8 are further described below.

Referring to fig. 1 to 3, the limiting mechanism 6 includes a clamping assembly 61 and a clamping assembly 62, the clamping assembly 61 includes a clamping ring 611, the clamping ring 611 is disposed on the upper surface of the supporting seat 4, a clamping groove 612 is formed on an arc surface of the clamping ring 611, a vertical cross section of the clamping groove 612 is bullet-shaped, the clamping groove 612 is matched with elastic clamping blocks around the bottom of the measuring instrument 5, and the horizontal positioning of the measuring instrument 5 is completed by the mutual clamping of the elastic clamping blocks and the clamping groove 612.

Referring to fig. 4-6, the clamping assembly 62 includes two first guide rods 621, and the first guide rods 621 are disposed in limiting holes 627 formed in the support base 4. The sliding sleeve of the peripheral wall of the first guide rod 621 is provided with a sliding plate 622, the upper surface of the sliding plate 622 is provided with a sliding groove 623, an adjusting plate 624 is slidably connected in the sliding groove 623, and the end of the adjusting plate 624 is connected with a clamping plate 625. The end of the sliding plate 622 inside the limiting hole 627 is connected with an elastic member 626, the other end of the elastic member 626 is connected with the inner wall of the limiting hole 627, and the elastic member 626 can be a spring.

The side wall of slide 622 is equipped with fixed subassembly 629, and fixed subassembly 629 includes screw 6291, screw 6291 and slide 622 threaded connection, and screw 6291 passes slide 622 and supports the surface at regulating plate 624, and the one end fixedly connected with commentaries on classics piece 6292 that screw 6291 kept away from regulating plate 624, and the arc surface of commentaries on classics piece 6292 evenly is equipped with a plurality of antiskid arch.

Specifically, in the present embodiment, the clamping plate 625 is in an "L" shape, a gasket 628 is fixedly connected to the clamping plate 625 and the lower surface of the contact arm of the measuring instrument 5, and the gasket 628 is preferably made of rubber. The sliding of the clamp plate 625 brings the pad 628 into contact with the measuring instrument 5, and at this time, the rubber pad 628 plays a role of reducing the abrasion between the measuring instrument 5 and the clamp plate 625. Meanwhile, the section of the adjusting plate 624 is dovetail-shaped, and the bottom cross-sectional dimension of the sliding groove 623 is larger than the top cross-sectional dimension, so that when the adjusting plate 624 slides upwards, the sliding groove 623 can limit the sliding path and the sliding distance of the adjusting plate 624, and the adjusting plate 624 is prevented from being out of contact with the sliding groove 623.

Referring to fig. 1 and 7, the protection mechanism 7 includes a fixing plate 71, the fixing plate 71 is connected to the upper step of the base 1, an arc plate 72 is fixedly connected to the upper surface of the fixing plate 71, and a first connecting plate 73 is fixedly connected to one end of the arc plate 72 far away from the fixing plate 71. Two inserting plates 74 are fixedly connected to one side of the first connecting plate 73 far away from the arc-shaped plate 72, and the section of each inserting plate 74 is U-shaped. The two insertion plates 74 are symmetrically distributed with respect to a vertical middle section of the first connection plate 73, and a protection plate 75 is slidably connected to an inner wall of the two insertion plates 74. The shield 75 is located above the meter 5 and is preferably made of polycarbonate.

As shown in fig. 8, the upper surface of the first connecting plate 73 is provided with an anti-slip component 77, the anti-slip component 77 includes two supporting rods 771, one end of each supporting rod 771 is connected with the first connecting plate 73, the outer peripheral wall of each supporting rod 771 is connected with a second connecting plate 772 in a sliding manner, the other end of each second connecting plate 772 is connected with a pressing rod 773, and one end of each pressing rod 773 far away from the second connecting plate 772 is fixedly connected with a suction cup 774.

The end of the insert plate 74 is connected with a guide plate 76 in an inclined manner, and the guide plate 76 is in an L shape as a whole. Slide protection plate 75 along the surface of guide plate 76, guide plate 76 guides protection plate 75's slip route this moment, makes things convenient for the staff to slide protection plate 75 in the slot of picture peg 74. In addition, the upper surface of the second connecting plate 772 is connected with a magnetic ring 775, and the magnetic ring 775 is slidably sleeved on the supporting rod 771. A knob 776 is coupled to an upper end of the support bar 771, and the knob 776 is preferably made of iron.

Referring to fig. 3, 9 and 10, the adjusting mechanism 8 includes two telescopic rods 81, the lower ends of the telescopic rods 81 are connected to the supporting base 4, and the upper ends thereof are provided with squeezing assemblies 82. The extrusion assembly 82 comprises a push plate 821, the push plate 821 is erected at the upper end of the telescopic rod 81, and both sides of the push plate 821 are rotatably connected with a rotating plate 822. The upper surface of supporting seat 4 is equipped with drive assembly 83, and drive assembly 83 includes second guide bar 831, and the both ends of second guide bar 831 all with supporting seat 4 fixed connection. The outer peripheral wall of the second guiding rod 831 is slidably sleeved with two driving plates 832, and the two driving plates 832 are located between the two sliding plates 622 and connected with the sliding plates 622. A baffle 823 is arranged at the joint of the push plate 821 and the rotating plate 822, the baffle 823 is arc-shaped, and one end of the baffle 823 is fixedly connected to the upper surface of the push plate 821.

The upper surface of the supporting seat 4 is provided with a positioning assembly 84, the positioning assembly 84 comprises a fixing rod 841, the lower end of the fixing rod 841 is connected with the supporting seat 4, the upper end of the fixing rod 841 is rotatably connected with a positioning plate 842, the lower surface of the push plate 821 is connected with an L-shaped plate 843, a groove 844 is formed in the contact surface of the L-shaped plate 843 and the positioning plate 842, and the size of the groove 844 is matched with that of the rotating plate 822. The lower extreme of commentaries on classics board 822 rotates and is connected with cylinder 824, and the arc surface and the supporting seat 4 sliding contact of cylinder 824 change board 822 and drive cylinder 824 and roll along the upper surface of supporting seat 4, reducible commentaries on classics board 822 and the frictional resistance between the supporting seat 4.

Example 2

The construction method of the steel structure aerial measuring device in the embodiment utilizes the measuring device in the embodiment 1 to carry out aerial detection, and comprises the following steps:

firstly, hanging the hanging rod 2 on a cross beam of a building, and enabling the base 1 to be propped against the cross beam, so that the purpose of hanging the base 1 on the cross beam is achieved, and meanwhile, the base 1 is ensured not to shake; then, the push plate 821 is pressed downward, the two slide plates 622 are slid in directions away from each other, and the position of the push plate 821 is restricted by the positioning plate 842; then, sliding a clamping block on the measuring instrument 5 into the inner wall of the clamping groove 612, and ensuring that the measuring instrument 5 is in contact with the supporting seat 4; then, the positioning plate 842 is rotated to make the positioning plate 842 separate from the L-shaped plate 843, and at this time, the position of the measuring instrument 5 is limited by the clamp ring 611 and the clamp plate 625; meanwhile, the protection plate 75 is installed above the measuring instrument 5 to protect the measuring instrument 5, and finally, the parameters of the measuring instrument 5 are adjusted, so that construction measurement can be performed.

Specifically, when the position limiting mechanism 6 is required to be used, the sliding plates 622 are made to slide along the first guide bars 621 in a direction away from each other, and the sliding plates 622 press the elastic members 626, so that the elastic members 626 are in a compressed state. The adjusting plate 624 slides through the sliding plate 622 to drive the clamping plate 625 to slide, when the clamping plate 625 slides to a proper position, the measuring instrument 5 is placed on the clamping ring 611 to rotate, and when the elastic clamping block on the measuring instrument 5 is completely clamped with the clamping groove 612, the measuring instrument 5 can be effectively prevented from sliding in the horizontal direction. The slides 622 are then released, at which point the elastic members 626 begin to stretch and the two slides 622 will approach each other by the tension of the elastic members 626. Sliding the slide plate 622 causes the clamp plate 625 to contact the meter 5, then rotating the rotary block 6292 to rotate the screw 6291, and the screw 6291 disengages from the adjustment plate 624, and then sliding the clamp plate 625 downward to prevent the meter 5 from sliding in the vertical direction. The clamp plate 625 and the snap ring 611 cooperate to limit the position of the measuring device 5 and prevent the measuring device 5 from falling down as much as possible. Meanwhile, due to the cooperation between the adjusting plate 624 and the sliding groove 623, when the adjusting plate 624 slides upwards, the sliding groove 623 can limit the sliding path and the sliding distance of the adjusting plate 624, and the adjusting plate 624 is prevented from being out of contact with the sliding groove 623 as much as possible.

When the protection mechanism 7 needs to be used, the second connection plate 772 slides along the axial direction of the support rod 771, and the second connection plate 772 drives the magnetic ring 775 to move. After the magnetic ring 775 is in contact with the knob 776, the knob 776 is made of an iron material, the magnetic ring 775 is attracted to the lower surface of the knob 776 by means of the magnetic force of the knob 776, and the knob 776 achieves the effect of limiting the position of the magnetic ring 775 and further limiting the position of the sucking disc 774. The shielding plate 75 is then slid along the surface of the guide plate 76, at which time the guide plate 76 reaches to guide the sliding path of the shielding plate 75. When the protection plate 75 slides into the slot of the insertion plate 74, the insertion plate 74 limits the position of the protection plate 75. Then, the second connecting plate 772 is moved downwards, the pressing rod 773 slides via the second connecting plate 772 to suck the suction disc 774 on the upper surface of the protection plate 75, and at this time, the supporting rod 771 has the effect of limiting the position of the second connecting plate 772, so that the position of the protection plate 75 is finally limited. Since the polycarbonate material is colorless and transparent and has high strength, the protection plate 75 made of polycarbonate material can prevent the measurement instrument 5 from being hit by a falling object as much as possible without affecting the upward irradiation of the measurement instrument 5.

Before the measuring instrument 5 is placed on the upper surface of the support base 4, the push plate 821 is pressed downwards, the telescopic rod 81 is compressed by sliding the push plate 821, and the telescopic rod 81 plays a role of limiting the sliding path of the push plate 821. Sliding the push plate 821 causes the two rotating plates 822 to rotate, and the rotating plates 822 rotate to drive the rollers 824 to roll along the upper surface of the supporting base 4. At this time, the rotating plate 822 pushes the driving plate 832, so that the driving plate 832 slides along the axial direction of the second guiding rod 831. Sliding the driving plate 832 causes the sliding plates 622 to slide, and the sliding plates 622 slide away from each other. In the process of rotating the rotating plate 822, the shield 823 acts to restrict the rotation angle of the rotating plate 822.

The movement of the push plate 821 can also drive the L-shaped plate 843 to move synchronously, when the L-shaped plate 843 slides to a proper position, the positioning plate 842 is rotated to align the positioning plate 842 with the groove 844, at the moment, the push plate 821 is loosened, the L-shaped plate 843 can slide upwards under the tension of the elastic element 626 to contact the inner wall of the groove 844 with the positioning plate 842, and the positioning plate 842 plays a role in limiting the position of the L-shaped plate 843 and further limiting the positions of the two sliding plates 622. After the measuring instrument 5 is mounted on the positioning block 61, the push plate 821 is pressed again, and the positioning plate 842 is rotated to unlock the L-shaped plate 843. At this time, the elastic member 626 begins to extend, and the sliding plate 622 drives the two driving plates 832 to approach each other by the tension of the elastic member 626, so that the push plate 821 is reset for the next use.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.

Claims

1. The utility model provides an aerial measuring device of steel construction, includes base (1), base (1) on be equipped with supporting seat (4), its characterized in that: a limiting mechanism (6) is arranged on the supporting seat (4), and the limiting mechanism (6) comprises a clamping component (61) and a clamping component (62); the clamping component (61) comprises a clamping ring (611) and a clamping groove (612) formed in the clamping ring (611); centre gripping subassembly (62) include slide (622) and splint (625), wherein, the one end of slide (622) is connected with supporting seat (4), splint (625) are connected to the other end, slide (622) drive splint (625) and remove along the horizontal direction, splint (625) self removes along vertical direction.

2. The steel structure aerial measuring device of claim 1, characterized in that: the clamping assembly (62) further comprises a first guide rod (621), an adjusting plate (624) and an elastic piece (626), wherein the first guide rod (621) is located in a limiting hole (627) in the supporting seat (4), the sliding plate (622) is sleeved on the first guide rod (621), one end of the adjusting plate (624) is connected with the clamping plate (625), the other end of the adjusting plate is inserted into a sliding groove (623) formed in the sliding plate (622), one end of the elastic piece (626) is connected with the inner wall of the limiting hole (627), and the other end of the elastic piece is connected with the sliding plate (622).

3. The steel structure aerial measuring device of claim 2, characterized in that: the sliding plate (622) is further provided with a fixing component (629), the fixing component (629) comprises a screw (6291), one end of the screw (6291) penetrates through the sliding plate (622) and abuts against the surface of the adjusting plate (624), and the other end of the screw is connected with a rotating block (6292).

4. A steel structure aerial surveying device according to any one of claims 1-3, characterized in that: the sliding plate (622) is connected with an adjusting mechanism (8), and the adjusting mechanism (8) comprises a telescopic rod (81), an extrusion assembly (82) and a transmission assembly (83); the extrusion assembly (82) comprises a push plate (821) and a rotating plate (822), wherein the push plate (821) is erected on the telescopic rod (81), one end of the rotating plate (822) is hinged to the push plate (821), the other end of the rotating plate is connected with a transmission plate (832) of the transmission assembly (83), and the transmission plate (832) is connected with the sliding plate (622).

5. The steel structure aerial measuring device of claim 4, characterized in that: the push plate (821) and the rotating plate (822) are connected through a baffle (823), a roller (824) is arranged at the contact position of the rotating plate (822) and the supporting seat (4), and a second guide rod (831) for the driving plate (832) to move is further arranged on the supporting seat (4).

6. The steel structure aerial measuring device of claim 5, characterized in that: adjustment mechanism (8) still include locating component (84), this locating component (84) include dead lever (841), locating plate (842) and L shaped plate (843), wherein, the one end setting of dead lever (841) is on supporting seat (4), and locating plate (842) is connected to the other end, L shaped plate (843) one end is connected with push pedal (821), the other end cooperatees with locating plate (842).

7. The steel structure aerial measuring device of claim 6, characterized in that: still include protection machanism (7), protection machanism (7) including first connecting plate (73) and guard plate (75), be equipped with two sets of picture peg (74) on this first connecting plate (73), the slot that guard plate (75) pass through on picture peg (74) is connected with first connecting plate (73).

8. The steel structure aerial measuring device of claim 7, characterized in that: the first connecting plate (73) is connected with the base (1) through an arc-shaped plate (72), and the end part of the inserting plate (74) is connected with a guide plate (76).

9. The steel structure aerial measuring device of claim 8, characterized in that: protection machanism (7) still include anti-skidding subassembly (77), this anti-skidding subassembly (77) include bracing piece (771), second connecting plate (772) and magnetic ring (775), wherein, magnetic ring (775) cover is established on bracing piece (771), adsorbs mutually with knob (776) of bracing piece (771) tip, the one end of second connecting plate (772) is connected with magnetic ring (775), the other end is equipped with sucking disc (774).

10. A construction method of a steel structure aerial measuring device is characterized in that: the measurement is performed by using the measuring apparatus as set forth in claim 9, which comprises the steps of,

s1, fixing a measuring device on a building beam;

s2, pressing a push plate (821) of the adjusting mechanism (8), driving the sliding plate (622) to be away from each other through a driving plate (832), and limiting the push plate (821) through a positioning assembly (84);

s3, placing the measuring instrument (5) on the clamping ring (611) to enable the elastic clamping blocks on the periphery of the bottom of the measuring instrument (5) to be clamped with the clamping grooves (612) mutually;

s4, the limit of the push plate (821) by the positioning component (84) is released, the clamp plate (625) is moved, the upper end of the clamp plate is enabled to press the outer edge of the measuring instrument (5), and the movable clamp plate (625) is locked and limited through the fixing component (629);

s5, inserting the protection plate (75) into the inserting plate (74), and adsorbing and positioning the protection plate (75) through the sucking disc (774).