CN215294343U

CN215294343U - On-spot mapping device of building engineering cost

Info

Publication number: CN215294343U
Application number: CN202121119690.4U
Authority: CN
Inventors: 陈箐蕾
Original assignee: Shanghai Aerospace Architectural Design Institute Co ltd
Current assignee: Shanghai Aerospace Architectural Design Institute Co ltd
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2021-12-24
Anticipated expiration: 2031-05-24

Abstract

The utility model relates to a construction cost on-site mapping device, which comprises an adjusting bracket and a mapping instrument, wherein the mapping instrument is arranged on the adjusting bracket, and the adjusting bracket comprises a plurality of telescopic supporting legs, a supporting plate, a bottom plate and two clamping mechanisms; the support plate is fixedly arranged at the upper ends of the telescopic support legs, and a rotary groove is formed in the position of a central shaft of the support plate; the bottom plate is arranged at the upper end of the supporting plate, the lower end of the bottom plate is provided with a rotating column, the rotating column is arranged in a rotating groove, the upper end of the bottom plate is symmetrically provided with two adjusting grooves, the side wall of each adjusting groove is provided with a plurality of gear holes, the side end of the bottom plate is provided with a square hole communicated with the adjusting groove, and the bottom plate is used for placing a surveying and mapping instrument; the two clamping mechanisms are correspondingly arranged in the two adjusting grooves and used for clamping the surveying instrument. The utility model discloses an on-spot mapping device of building engineering cost, simple structure is reasonable, can carry out the centre gripping to the mapping appearance of different kind size fixed to protect the mapping appearance, have good practical value and popularization and application and worth.

Description

On-spot mapping device of building engineering cost

Technical Field

The utility model relates to an engineering cost technical field especially relates to an on-spot mapping device of building engineering cost.

Background

The project cost refers to the construction cost of the project predicted or actually paid in the construction period, and the work of predicting, planning, controlling, accounting, analyzing and evaluating the project cost by comprehensively using knowledge and skills in the aspects of management, economics, engineering technology and the like is called project cost management.

In the process of surveying and mapping by using the surveying and mapping device on a building site, the surveying and mapping device cannot be adjusted according to the actual situation of the site, so that the difficulty of site surveying and mapping is increased, for example, the height of a support frame of the surveying and mapping device cannot be adjusted; in addition, current mapping device also can not carry out the centre gripping to the measuring instrument of equidimension not fixed, more can't protect the measuring instrument, and this inevitably can cause inconvenience to on-the-spot survey and drawing.

At present, the problems that an existing surveying and mapping device cannot be flexibly adjusted and cannot clamp and fix measuring instruments of different sizes are solved.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: aiming at the defects in the prior art, the construction engineering cost on-site mapping device is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an on-spot mapping device of building engineering cost, including adjusting support and surveying instrument, the surveying instrument install in adjust the support, it includes to adjust the support:

a plurality of telescopic support legs;

the supporting plate is fixedly arranged at the upper ends of the telescopic supporting legs, and a rotating groove is formed in the central shaft position of the supporting plate;

the bottom plate is arranged at the upper end of the supporting plate, a rotating column is arranged at the lower end of the bottom plate and arranged in the rotating groove, two adjusting grooves are symmetrically formed in the upper end of the bottom plate, a plurality of gear holes are formed in the side walls of the adjusting grooves, square holes communicated with the adjusting grooves are formed in the side ends of the bottom plate, and the bottom plate is used for placing the surveying instrument;

two fixture, two fixture correspondence sets up in two the adjustment tank is used for the centre gripping the surveying instrument, fixture includes:

the sliding block is arranged inside the adjusting groove, a mounting hole is formed in the side end of the sliding block, and the mounting hole and the gear hole are correspondingly arranged;

the first end of the adjusting rod penetrates through the square hole, the mounting hole is positioned inside one gear hole, and the second end of the adjusting rod is arranged outside the square hole;

the telescopic base plate is fixedly arranged at the upper end of the sliding block, and an installation groove is formed in the upper end face of the telescopic base plate;

the first end of the gear is embedded in the side wall of the telescopic base plate, and the second end of the gear is positioned in the installation groove;

the L-shaped fixing plate is arranged inside the mounting groove, and a moving groove matched with the gear is formed in the L-shaped fixing plate;

and the rack is arranged on the side wall of the moving groove and is meshed and connected with the second end of the gear.

Further, in the construction cost on-site mapping apparatus, the clamping mechanism further includes:

the reset spring is arranged in the mounting hole, the first end of the reset spring is fixedly connected with the inner side wall of the mounting hole, and the second end of the reset spring is fixedly connected with the outer surface wall of the adjusting rod.

and the pull ring is arranged at the second end of the adjusting rod.

the rotating piece is arranged at the first end of the gear and is coaxially connected with the gear.

the crank is eccentrically arranged at the side end of the rotating piece.

Further, in the construction cost on-site mapping apparatus, the adjusting bracket further includes:

and the rotating bearing is arranged in the rotating groove and sleeved with the rotating column.

and the plurality of anti-collision mechanisms are correspondingly arranged at the side end of the bottom plate.

Further, in the construction cost on-site surveying and mapping apparatus, the collision avoidance mechanism includes:

the anti-collision base plate is arranged at the side end of the bottom plate, and a plurality of anti-collision grooves are formed in the side end of the anti-collision base plate;

the buffer spring is arranged in each anti-collision groove, and the first end of each buffer spring is fixedly connected with the bottom of the anti-collision groove;

the connecting columns are arranged in the anti-collision grooves, and the first ends of the connecting columns are fixedly connected with the second ends of the buffer springs;

the buffer board, the buffer board set up in the anticollision base plate is kept away from one side of bottom plate, and respectively with a plurality of spliced pole fixed connection.

Further, in the construction cost on-site mapping apparatus, the collision avoidance mechanism further includes:

the two fixing blocks are symmetrically arranged on the side wall of the connecting column and are correspondingly positioned inside the two sliding grooves formed in the two side walls of the anti-collision groove.

Further, in the construction cost on-site surveying and mapping apparatus, the telescopic support leg includes:

the lower end of the upper support leg is provided with a threaded hole;

the lower supporting leg, the lower supporting leg set up in the screw hole, the upper end of lower supporting leg with screw hole threaded connection.

The above technical scheme is adopted in the utility model, compared with the prior art, following technological effect has:

(1) the utility model discloses a building engineering cost on-spot mapping device can adjust the height and the inclination of adjusting the support through telescopic support leg, makes the mapping appearance can the level place in the building scene, through setting up two fixture on the bottom plate to can carry out the centre gripping to the mapping appearance of different kind sizes, avoid carrying too much installing support in the building scene in order to carry out the centre gripping to different installing supports and fix;

(2) the side end of the bottom plate is provided with the anti-collision mechanism, so that the surveying instrument is protected under the condition that the adjusting bracket is inclined;

(3) the utility model discloses an on-spot mapping device of building engineering cost, simple structure is reasonable, can carry out the centre gripping to the mapping appearance of different kind size fixed to can protect the mapping appearance, have good practical value and popularization and application and worth.

Drawings

FIG. 1 is a schematic structural view of the construction cost on-site surveying and mapping device of the present invention;

FIG. 2 is a schematic structural view of an adjusting bracket in the construction cost on-site surveying and mapping device of the present invention;

FIG. 3 is a cross-sectional view of the support plate and the bottom plate of the construction cost on-site surveying and mapping device of the present invention;

FIG. 4 is an assembly view of the bottom plate and the clamping mechanism of the construction cost on-site surveying and mapping apparatus of the present invention;

FIG. 5 is a cross-sectional view of the bottom plate of the construction cost on-site surveying and mapping apparatus of the present invention;

FIG. 6 is a cross-sectional view of the clamping mechanism of the construction cost on-site surveying and mapping apparatus of the present invention;

FIG. 7 is a schematic view of the structure of portion A in FIG. 6;

FIG. 8 is a cross-sectional view of the bottom plate and the slide block of the construction cost on-site surveying and mapping apparatus of the present invention;

FIG. 9 is a cross-sectional view of an anti-collision mechanism in the construction cost on-site surveying and mapping apparatus of the present invention;

wherein the reference symbols are:

1. adjusting the bracket; 2. a surveying instrument; 3. a telescopic support leg; 4. a support plate; 5. a rotating tank; 6. a base plate; 7. a spin column; 8. an adjustment groove; 9. a gear hole; 10. a square hole; 11. a clamping mechanism; 12. a slider; 13. mounting holes; 14. adjusting a rod; 15. a flexible substrate; 16. installing a groove; 17. a gear; 18. an L-shaped fixing plate; 19. a moving groove; 20. a rack; 21. a return spring; 22. a pull ring; 23. a rotating sheet; 24. a crank; 25. a rotating bearing; 26. an anti-collision mechanism; 27. an anti-collision substrate; 28. an anti-collision groove; 29. a buffer spring; 30. connecting columns; 31. a buffer plate; 32. a fixed block; 33. a chute; 34. an upper support leg; 35. and a lower support leg.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "upper", "lower", "inner", "outer", "vertical", "horizontal", and the like as used herein are used in the description to indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

The utility model provides an on-spot mapping device of building engineering cost, as shown in figure 1, including adjusting support 1 and surveying instrument 2, surveying instrument 2 is installed in adjusting support 1.

Wherein, adjust support 1 and be used for adjusting surveying instrument 2's angle and height to make surveying instrument 2 can keep the level, so that surveying instrument 2 can survey and draw at the job site.

As shown in figure 2, the adjusting bracket 1 comprises a plurality of telescopic supporting legs 3, a supporting plate 4, a bottom plate 6 and two clamping mechanisms 11.

A plurality of telescopic support legs 3 are used for supporting the height of adjusting backup pad 4, make backup pad 4 can keep the level, and then make surveying instrument 2 above backup pad 4 keep the level.

Wherein, a plurality of telescopic support legs 3 are obliquely arranged at the lower end of the support plate 4 to support the support plate 4. Preferably, the lower end of the support plate 4 is provided with three telescopic support legs 3 to support and adjust the support plate 4.

In some of these embodiments, the telescopic support legs 3 comprise an upper support leg 34 and a lower support leg 35.

The lower end of the upper support leg 34 is provided with a threaded hole, and the upper support leg 34 is obliquely arranged at the lower end of the support plate 4 and used for supporting the support plate 4.

The lower support leg 35 is disposed inside the threaded hole, and the upper end of the lower support leg 35 is in threaded connection with the threaded hole for adjusting the height of the support plate 4.

Specifically, under the condition that the height of the support plate 4 is insufficient, the surveying and mapping staff can rotate the lower support leg 35 to make the lower support leg 35 away from the upper support leg 34 to increase the height of the telescopic support leg 3, thereby adjusting the height of the support plate 4.

As shown in fig. 2-3, the supporting plate 4 is fixedly arranged at the upper ends of the telescopic supporting legs 3, the rotating groove 5 is formed in the center shaft position of the supporting plate 4, the supporting plate 4 is used for installing the bottom plate 6, the bottom plate 6 can rotate in the supporting plate 4, and the surveying instrument 2 on the bottom plate 6 is used for surveying and mapping buildings in different directions.

In some of the embodiments, the support plate 4 is slidably provided with a wedge block, and the wedge block is used for fixing the bottom plate 6 and preventing the bottom plate 6 from rotating.

Specifically, in the case where the bottom plate 6 needs to be fixed, the surveying and mapping staff may slide the wedge block toward the central axis direction of the bottom plate 6 to press the bottom plate 6 to fix the bottom plate 6.

Bottom plate 6 sets up in the upper end of backup pad 4, and the lower extreme of bottom plate 6 is provided with column spinner 7, and column spinner 7 sets up in swivelling chute 5, and two adjustment tanks 8 have been seted up to the upper end symmetry of bottom plate 6, and a plurality of gear holes 9 have been seted up to the lateral wall of adjustment tank 8, and square hole 10 of intercommunication adjustment tank 8 is seted up to the side of bottom plate 6, and bottom plate 6 is used for installing surveying instrument 2.

Specifically, install in the condition of bottom plate 6 at surveying instrument 2, if surveying personnel need carry out the condition of surveying and mapping to the building of equidirectional not, surveying personnel can swivel bottom plate 6, and bottom plate 6 passes through column spinner 7 and rotates in the inside of swivelling chute 5 to adjust surveying instrument 2's orientation, and then survey and draw the building of equidirectional not.

As shown in FIG. 2, two clamping mechanisms 11 are correspondingly arranged on the two adjusting grooves 8 for clamping the surveying instrument 2, so that the surveying instrument 2 is prevented from shaking or falling off from the bottom plate 6.

As shown in fig. 4 to 7, the clamping mechanism 11 includes a slider 12, an adjusting rod 14, a telescopic base plate 15, a gear 17, an L-shaped fixing plate 18, and a rack 20.

The slider 12 is arranged in the adjusting groove 8, a mounting hole 13 is formed in the side end of the slider 12, the central shaft of the mounting hole 13 and the central shafts of the gear holes 9 are located on the same horizontal plane, and the slider 12 is used for being connected with the telescopic substrate 15 to drive the telescopic substrate 15 to move along the adjusting groove 8.

The first end of the adjusting rod 14 penetrates through the square hole 10 and the mounting hole 13 and is located inside the gear hole 9, the second end of the adjusting rod 14 is arranged outside the square hole 10, and the adjusting rod 14 is used for limiting the sliding block 12.

Specifically, in the case where the adjustment lever 14 passes through the square hole 10 and the mounting hole 13 is located at the one-step hole 9, the slider 12 is restricted by the adjustment lever 14 so as not to move inside the adjustment groove 8.

The flexible base plate 15 is fixed to be set up in the upper end of a slider 12, and mounting groove 16 has been seted up to the up end of flexible base plate 15, and flexible base plate 15 is used for carrying out the centre gripping to the side of surveying instrument 2 and fixes, avoids surveying instrument 2 to take place to drop from bottom plate 6.

Specifically, under the flexible base plate 15 needs to carry out the centre gripping fixed condition to surveying instrument 2, surveying personnel will adjust pole 14 and pull out from the inside of gear hole 9, then be close to surveying instrument 2 with flexible base plate 15, then surveying personnel will adjust the inside of pole 14 insertion corresponding gear hole 9 in order to be fixed in the inside of adjustment tank 8 with slider 12, and then fix flexible base plate 15.

In some embodiments, a buffer film is coated on one side of the flexible substrate 15 close to the surveying instrument 2 for filling a gap existing between the flexible substrate 15 and the surveying instrument 2, and further enhancing the clamping and fixing capacity of the surveying instrument 2.

A first end of the gear 17 is disposed on the side wall of the retractable base plate 15, and a second end of the gear 17 is located inside the installation groove 16 formed on the upper end surface of the retractable base plate 15, and is used for driving the L-shaped fixing plate 18 to ascend or descend inside the installation groove 16.

L shape fixed plate 18 sets up in the inside of installing groove 16, and L shape fixed plate 18 is seted up and is equipped with the shifting chute 19 with gear 17 matched with, and L shape fixed plate 18 is used for carrying out the centre gripping respectively to surveying instrument 2's upper end and side, further carries out the centre gripping to surveying instrument 2 and fixes.

The rack 20 is disposed on a side wall of the moving groove 19 and engaged with a second end of the gear 17 for cooperating with the gear 17 to raise or lower the L-shaped fixing plate 18 inside the mounting groove 16.

Specifically, under the condition that a surveying and mapping staff needs to heighten the L-shaped fixing plate 18 to clamp and fix the surveying and mapping instrument 2, the surveying and mapping staff rotates the gear 17 to drive the rack 20 to move upwards, and the rack 20 drives the L-shaped fixing plate 18 to ascend in the installation groove 16; the survey and drawing personnel need turn down L shape fixed plate 18 and carry out the centre gripping under the fixed condition to surveying appearance 2, and survey and drawing personnel can rotating gear 17, drive rack 20 and remove downwards, and rack 20 drives L shape fixed plate 18 and descends in the inside of installing groove 16.

Further, as shown in fig. 8, the clamping mechanism 11 further includes a return spring 21, the return spring 21 is disposed inside the mounting hole 13, the return spring 21 is sleeved on the adjusting rod 14 and arranged, the first end of the return spring 21 is fixedly connected with the inner side wall of the mounting hole 13, the second end of the return spring 21 is fixedly connected with the outer surface wall of the adjusting rod 14, and the return spring 21 is used for resetting the adjusting rod 14 when the surveying and mapping staff pulls the adjusting rod 14 out of the gear hole 9, and if the surveying and mapping staff is not applying a pulling force to the adjusting rod 14, and then the adjusting rod 14 is reset to the corresponding gear hole 9, so as to limit the slide block 12.

Further, as shown in fig. 4, the clamping mechanism 11 further includes a pull ring 22, and the pull ring 22 is disposed at the second end of the adjustment lever 14 to facilitate pulling out the adjustment lever 14.

Further, the clamping mechanism 11 further includes a rotating plate 23, the rotating plate 23 is disposed at a first end of the gear 17 and is coaxially connected to the gear 17, so as to rotate the gear 17, and the gear 17 drives the rack 20 to move up and down.

Specifically, under the condition that needs make L shape fixed plate 18 reciprocate in the inside of installing groove 16, surveying personnel can initiative rotor 23, and rotor 23 drives gear 17 and takes place to rotate, and then drives rack 20 and reciprocate in the inside of installing groove 16, and L shape fixed plate 18 reciprocates in the inside of installing groove 16 afterwards.

Further, the clamping mechanism 11 further includes a crank 24, and the crank 24 is eccentrically disposed at a side end of the rotary piece 23 so as to rotate the rotary piece 23.

Further, as shown in fig. 3, the construction cost on-site surveying and mapping device further includes a rotation bearing 25, the rotation bearing 25 is disposed inside the rotation groove 5, and the rotation column 7 is sleeved on the rotation bearing 25, so as to eliminate the friction between the rotation column 7 and the rotation groove 5, and facilitate the rotation of the bottom plate 6 on the support plate 4.

Further, on-spot mapping device of building engineering cost still includes a plurality of anticollision institution 26, and a plurality of anticollision institution 26 correspond and set up in the side of bottom plate 6 for protect surveying appearance 2, avoid adjusting support 1 and empty, damage surveying appearance 2.

In some embodiments, an anti-collision mechanism 26 is fixedly disposed at each side end of the bottom plate 6 where the square hole 10 is not formed, so as to protect the surveying instrument 2.

The anti-collision mechanism 26 may be fixedly connected to the bottom plate 6 by a plurality of screws, or may be welded to the bottom plate 6.

In some of these embodiments, as shown in fig. 9, the crash mechanism 26 includes a crash base 27, a plurality of cushioning springs 29, a plurality of attachment posts 30, and a cushioning plate 31.

The crash base plate 27 is disposed at a side end of the bottom plate 6, a plurality of crash grooves 28 are formed at a side end of the crash base plate 27, and the crash grooves 28 are used for mounting a buffer spring 29.

A buffer spring 29 is arranged in each anti-collision groove 28, and the first end of each buffer spring 29 is fixedly connected with the groove bottom of the anti-collision groove 28; a connecting column 30 is arranged inside each collision avoidance groove 28, and a first end of the connecting column 30 is fixedly connected with a second end of the buffer spring 29 and is used for installing and connecting a buffer plate 31.

Wherein the buffer spring 29 is used for buffering the impact on the bottom plate 6 when the connecting column 30 is impacted.

The buffer board 31 is disposed on one side of the anti-collision substrate 27 away from the bottom board 6, and is respectively fixedly connected with the connecting posts 30, so as to play a role in buffering to protect the surveying instrument 2 when the adjusting bracket 1 is inclined.

Wherein, the buffer board 31 includes buffer substrate and buffer layer, and buffer substrate sets up in the one side that bottom plate 6 was kept away from to crashproof base plate 27, and the buffer layer sets up in the one side that crashproof base plate 27 was kept away from to buffer substrate, and the buffer layer is used for playing the cushioning effect, reduces outside impact to buffer substrate. Preferably, the cushioning layer is made of rubber.

Specifically, under the condition that regulation support 1 emptys, buffer board 31 at first with ground contact and cushioning effect, reduce the impact to bottom plate 6, then buffer board 31 extrusion spliced pole 30 makes spliced pole 30 extrusion buffer spring 29, and buffer spring 29 further plays the cushioning effect to further reduce and adjust support 1 and emptys the impact that produces bottom plate 6, thereby avoid surveying instrument 2 to suffer to strike and take place to damage.

Further, in order to avoid the connection column 30 moving inside the anti-collision groove 28 and avoid the connection column 30 moving out of the anti-collision groove 28, the anti-collision mechanism 26 further includes two fixing blocks 32, and the two fixing blocks 32 are symmetrically disposed on the side walls of the connection column 30 and correspond to two sliding grooves 33 disposed on the two side walls of the anti-collision groove 28.

The utility model discloses an on-spot mapping device of building engineering cost is when using, the staff will adjust support 1 and place the construction scene, then adjust telescopic support leg 3, make backup pad 4 keep the horizontality, then will adjust pole 14 and pull out gear hole 9, adjust the position of flexible base plate 15, it is fixed to carry out the centre gripping to surveying instrument 2, rotatory gear 17 again, it is fixed to make rack 20 drive L shape fixed plate 18 further carry out the centre gripping to surveying instrument 2, last rotating bottom plate 6, make surveying instrument 2 towards await measuring and drawing the building.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides an on-spot mapping device of building engineering cost, its characterized in that, is including adjusting support (1) and mapping instrument (2), mapping instrument (2) install in adjust support (1), adjust support (1) and include:

a plurality of telescopic support legs (3);

the supporting plate (4) is fixedly arranged at the upper ends of the telescopic supporting legs (3), and a rotating groove (5) is formed in the position of a central shaft of the supporting plate (4);

the bottom plate (6) is arranged at the upper end of the supporting plate (4), a rotating column (7) is arranged at the lower end of the bottom plate (6), the rotating column (7) is arranged in the rotating groove (5), two adjusting grooves (8) are symmetrically formed in the upper end of the bottom plate (6), a plurality of gear holes (9) are formed in the side wall of each adjusting groove (8), square holes (10) communicated with the adjusting grooves (8) are formed in the side end of the bottom plate (6), and the bottom plate (6) is used for placing the surveying instrument (2);

two fixture (11), two fixture (11) correspond set up in two adjustment tank (8) are used for the centre gripping surveying instrument (2), fixture (11) include:

the sliding block (12) is arranged inside the adjusting groove (8), a mounting hole (13) is formed in the side end of the sliding block (12), and the mounting hole (13) is arranged corresponding to the gear hole (9);

the first end of the adjusting rod (14) penetrates through the square hole (10), the mounting hole (13) is located inside the gear hole (9), and the second end of the adjusting rod (14) is arranged outside the square hole (10);

the telescopic base plate (15) is fixedly arranged at the upper end of the sliding block (12), and an installation groove (16) is formed in the upper end face of the telescopic base plate (15);

the first end of the gear (17) is embedded in the side wall of the telescopic base plate (15), and the second end of the gear (17) is positioned in the mounting groove (16);

the L-shaped fixing plate (18) is arranged inside the mounting groove (16), and the L-shaped fixing plate (18) is provided with a moving groove (19) matched with the gear (17);

the rack (20) is arranged on the side wall of the moving groove (19) and is meshed and connected with the second end of the gear (17).

2. The construction cost on-site mapping apparatus according to claim 1, wherein the clamping mechanism (11) further includes:

reset spring (21), reset spring (21) set up in the inside of mounting hole (13), reset spring (21) first end with the inside wall fixed connection of mounting hole (13), reset spring (21) the second end with adjust the exterior wall fixed connection of pole (14).

3. The construction cost on-site mapping apparatus according to claim 1, wherein the clamping mechanism (11) further includes:

a pull ring (22), wherein the pull ring (22) is arranged at the second end of the adjusting rod (14).

4. The construction cost on-site mapping apparatus according to claim 1, wherein the clamping mechanism (11) further includes:

the rotating piece (23) is arranged at the first end of the gear (17), and the rotating piece (23) is coaxially connected with the gear (17).

5. The construction cost on-site mapping apparatus according to claim 4, wherein the clamping mechanism (11) further includes:

the crank (24), the crank (24) is eccentrically arranged at the side end of the rotating sheet (23).

6. The construction cost on-site mapping device according to claim 1, wherein the adjusting bracket (1) further comprises:

and the rotating bearing (25) is arranged in the rotating groove (5) and sleeved with the rotating column (7).

7. The construction cost on-site mapping device according to claim 1, wherein the adjusting bracket (1) further comprises:

the plurality of anti-collision mechanisms (26) are correspondingly arranged at the side ends of the bottom plate (6).

8. The construction cost on-site mapping apparatus according to claim 7, wherein the collision avoidance mechanism (26) includes:

the anti-collision base plate (27) is arranged at the side end of the bottom plate (6), and a plurality of anti-collision grooves (28) are formed in the side end of the anti-collision base plate (27);

the buffer springs (29) are arranged in each anti-collision groove (28), and the first ends of the buffer springs (29) are fixedly connected with the groove bottom of the anti-collision groove (28);

the connecting columns (30) are arranged in the anti-collision grooves (28), and the first ends of the connecting columns (30) are fixedly connected with the second ends of the buffer springs (29);

the buffer plate (31), the buffer plate (31) set up in keeping away from of crashproof base plate (27) one side of bottom plate (6), and respectively with a plurality of spliced pole (30) fixed connection.

9. The construction cost on-site mapping apparatus according to claim 8, wherein the collision avoidance mechanism (26) further includes:

the two fixing blocks (32) are symmetrically arranged on the side walls of the connecting column (30) and are correspondingly positioned inside two sliding grooves (33) formed in the two side walls of the anti-collision groove (28).

10. Construction cost on-site surveying device according to claim 1, characterized in that said telescopic support leg (3) comprises:

the lower end of the upper support leg (34) is provided with a threaded hole;

the lower supporting leg (35), lower supporting leg (35) set up in the screw hole, the upper end of lower supporting leg (35) with screw hole threaded connection.