CN219284285U

CN219284285U - Pile foundation construction measurement lofting device

Info

Publication number: CN219284285U
Application number: CN202223429789.1U
Authority: CN
Inventors: 高磊; 罗华松; 尚彩霞; 武进广; 潘良才; 孙奉阳
Original assignee: China Railway Seventh Group Co Ltd; Wuhan Engineering Co Ltd of China Railway Seventh Group Co Ltd
Current assignee: China Railway Seventh Group Co Ltd; Wuhan Engineering Co Ltd of China Railway Seventh Group Co Ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-06-30
Anticipated expiration: 2032-12-21

Abstract

The utility model provides a pile foundation construction measurement lofting device which comprises a central seat board, wherein an upright post is fixedly arranged at the top of the central seat board, a positioning seat board is rotatably connected to the top of the upright post, a laser measuring instrument is arranged on the positioning seat board, and a dial is arranged on the upper end face of the central seat board. According to the utility model, the central seat board is arranged, the stand column is arranged on the central seat board, the top of the stand column is rotationally connected with the positioning seat board, the laser measuring instrument is arranged on the positioning seat board, the dial is arranged on the central seat board, the eccentrically distributed laser lamps are arranged below the positioning seat board, and when the positioning seat board rotates, the laser lamps can take the rotating angle of the laser measuring instrument through the indication of the dial, so that the laser measuring lofting can be realized by controlling the rotation of the positioning seat board according to the position angle of each corner of the foundation pit measured by the construction drawing, and the lofting precision is high and the convenience is good.

Description

Pile foundation construction measurement lofting device

Technical Field

The utility model relates to the technical field of bridge pile foundation lofting, in particular to a pile foundation construction measuring lofting device.

Background

The foundation pile needs to be installed before bridge construction, the foundation pit needs to be excavated before the pile foundation construction, the foundation pit is usually polygonal in specification, the foundation pit needs to be lofted during excavation, the existing lofting mode has the following defects, lofting precision is low, a plurality of laser measuring instruments are usually used for measuring and selecting at different positions, that is to say, the precision of foundation pit lofting can be influenced by frequent moving positions of the laser measuring instruments, and the laser measuring instruments need to be leveled again after each moving position, so that the direction efficiency is low.

Therefore, the utility model provides a pile foundation construction measurement lofting device.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide a pile foundation construction measurement lofting device for solving the problems in the background art.

In order to achieve the above object, the present utility model is realized by the following technical scheme: the utility model provides a pile foundation construction measurement lofting device, includes the center bedplate, the fixed stand that is provided with in top of center bedplate, the top rotation of this stand is connected with the location bedplate, is provided with laser measuring apparatu on this location bedplate, the up end of center bedplate is provided with the calibrated scale, the lower terminal surface of location bedplate is provided with the laser lamp of relative axis of rotation eccentric distribution.

Furthermore, the connecting hole has been seted up at the top of stand, the bottom welding of location bedplate has the cover to establish at the connecting hole and for rotating the connecting axle of connection.

Further, the outer peripheral wall of the upright post is provided with an elastic bayonet lock, and one end of the elastic bayonet lock is matched with the outer peripheral wall of the connecting shaft for use.

Further, an anchor rod and a supporting leg positioned at the periphery of the anchor rod are welded at the bottom of the central seat plate, and the anchor rod and the upright post are coaxially arranged.

Further, the center seat board is disc-shaped, and the number of the supporting legs is three and the supporting legs are uniformly distributed in the circumferential direction relative to the center seat board.

Further, the supporting leg and the central seat board are connected through screwing, and a handle rod is welded at the top of the supporting leg.

The utility model has the beneficial effects that: the utility model relates to a pile foundation construction measurement lofting device, which comprises a central seat board; a column; positioning a seat board; a connecting shaft; a laser measuring instrument; a dial; a laser lamp; an elastic bayonet lock; a bolt; a support leg; a handle bar.

Set up central bedplate, set up the stand on the central bedplate, the top of stand rotates and connects the location bedplate, installs laser measuring apparatu on the location bedplate, installs the calibrated scale on the central bedplate, sets up the laser lamp of eccentric distribution in the below of location bedplate, and when the location bedplate was rotatory, the laser lamp can get nail laser measuring apparatu rotatory angle through the instruction of calibrated scale, from this according to the position angle of each corner of foundation ditch of construction drawing measuring, then control the rotation of location bedplate just can realize laser measurement lofting, lofting precision is high, and the convenience is good.

Drawings

FIG. 1 is a schematic diagram of a structure of a central seat plate, a positioning seat plate, a laser measuring instrument, a laser lamp, a dial, supporting legs and an anchor rod in a pile foundation construction measurement lofting device;

FIG. 2 is a schematic cross-sectional view of the elastic bayonet and the connecting shaft of the pile foundation construction measuring and lofting device according to the present utility model;

in the figure: 1. a central seat plate; 2. a column; 3. positioning a seat board; 31. a connecting shaft; 4. a laser measuring instrument; 5. a dial; 6. a laser lamp; 7. an elastic bayonet lock; 8. a bolt; 9. a support leg; 91. a handle bar.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

Referring to fig. 1 and 2, the present utility model provides a technical solution: the utility model provides a pile foundation construction measurement lofting device, including center bedplate 1, center bedplate 1 places subaerial at the area excavation middle part, center bedplate 1's top is fixed to be provided with stand 2, this stand 2's top rotates and is connected with location bedplate 3, specifically, the connecting hole has been seted up at stand 2's top, the bottom welding of location bedplate 3 has the cover to establish at the connecting hole and be the connecting axle 31 that rotates the connection, stand 2 ensures to be vertical state, be provided with laser measuring instrument 4 on this location bedplate 3, laser measuring instrument 4 installs on location bedplate 3, its rotatory appearance scope that can measure the excavation, for example when the foundation ditch of polygon needs to excavate, laser measuring instrument 4 can survey the distance of polygon turning position, center bedplate 1's up end is provided with calibrated scale 5, calibrated scale 5 is the scale of setting up the angle on it, location bedplate 3's lower terminal surface is provided with the laser lamp 6 of relative axis of rotation eccentric distribution, the laser that laser lamp 6 sent shines on the scale on calibrated scale 5, be used for instructing the rotatory angle of laser measuring instrument 4, be convenient for measure the position of each corner of polytropic shape based on the drawing.

In this embodiment, the outer peripheral wall of the upright post 2 is provided with an elastic bayonet lock 7, one end of the elastic bayonet lock 7 is matched with the outer peripheral wall of the connecting shaft 31 for use, specifically, a guide sleeve is arranged on the upright post 2, a spring is installed in the guide sleeve, the elastic bayonet lock 7 is sleeved in the guide sleeve, one end of the elastic bayonet lock is pressed against the connecting shaft 31 under the action of elastic force, and the elastic bayonet lock is convenient to fix when the positioning seat plate 3 rotates to a proper angle.

In this embodiment, the bottom of the central seat board 1 is welded with an anchor rod 8 and supporting legs 9 located at the periphery of the anchor rod 8, the anchor rod 8 is used for being inserted below the ground to improve the stability of the placement of the central seat board 1, the anchor rod 8 and the upright posts 2 are coaxially arranged, the central seat board 1 is disc-shaped, the number of the supporting legs 9 is three and are located in the circumferential direction of the central seat board 1 and evenly distributed, and the supporting legs 9 are used for supporting the ground.

In this embodiment, the supporting leg 9 and the central seat board 1 are connected through screwing, the top of the supporting leg 9 is welded with a handle bar 91, and when the upright post 2 is inclined, the position of the supporting leg 9 is adjusted by manually controlling the handle bar 91 to rotate, so that the central seat board 1 can be leveled, and the leveling function is provided.

When the lofting device is used for measuring the excavation range of a foundation pit, the central seat board 1 is inserted on the ground in the middle of the foundation pit to be excavated through the anchor rods 8, then the supporting legs 9 are rotated to adjust the verticality of the upright post 2 until the ranging laser of the laser measuring instrument 4 is in a horizontal state, then the positioning seat board 3 is rotated based on the included angle of each corner of the polygonal foundation pit measured by a drawing relative to a central connecting line, then the positions of each corner of the foundation pit are sequentially determined by combining the laser measuring instrument 4 with auxiliary personnel, and then each corner connecting line is the excavation position in the connecting line range.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a lofting device is measured in pile foundation construction, includes center bedplate (1), its characterized in that, the fixed stand (2) that is provided with in top of center bedplate (1), the top rotation of this stand (2) is connected with location bedplate (3), is provided with laser survey meter (4) on this location bedplate (3), the up end of center bedplate (1) is provided with calibrated scale (5), the lower terminal surface of location bedplate (3) is provided with laser lamp (6) of relative axis of rotation eccentric distribution.

2. The pile foundation construction survey lofting device of claim 1, wherein: the top of stand (2) has seted up the connecting hole, the bottom welding of positioning seat board (3) has the cover to establish at the connecting hole and be connecting axle (31) of swivelling joint.

3. The pile foundation construction survey lofting device of claim 2, wherein: the periphery wall of stand (2) is provided with elasticity bayonet lock (7), and the one end and the periphery wall cooperation of connecting axle (31) of this elasticity bayonet lock (7) use.

4. The pile foundation construction survey lofting device of claim 1, wherein: the bottom of the center seat board (1) is welded with an anchor rod (8) and a supporting leg (9) positioned at the periphery of the anchor rod (8), and the anchor rod (8) and the upright post (2) are coaxially arranged.

5. The pile foundation construction survey lofting device of claim 4, wherein: the center seat board (1) is disc-shaped, and the number of the supporting legs (9) is three and are uniformly distributed in the circumferential direction relative to the center seat board (1).

6. The pile foundation construction survey lofting device of claim 5, wherein: the supporting leg (9) and the central seat board (1) are connected in a penetrating and screwing mode, and a handle rod (91) is welded at the top of the supporting leg (9).