Deep foundation pit surveying pay-off column

Abstract

The utility model discloses a deep foundation pit surveying and paying-off column which comprises an embedded part embedded in an inner supporting beam when the inner supporting beam is poured, four machine-made bolts are arranged on the embedded part, parts of the machine-made bolts are higher than a concrete finished surface of the inner supporting beam, and after the concrete inner supporting beam is poured, a chassis is fixed on the machine-made bolts. A column body is welded to the base plate, a centering disc is arranged above the column body, and a centering screw for fixing a total station is arranged in the center of the centering disc. The tripod solves the problem that when a tripod occupying a large space is used on a narrow supporting beam, measurement personnel do not have a standing space, and measurement cannot be conducted; and moreover, the device is simple in structure, convenient to mount and dismount, recyclable and very high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a deep foundation pit measurement and setting-out column. Background Art

[0002] In building construction projects with deep foundation pits, when the construction space is limited and the surrounding environment requirements are high, most of the support forms used are pile rows + reinforced concrete internal supports. In this support form, in order to be able to see the entire picture of the bottom of the foundation pit during the measurement and layout work of the basement, control points are generally set on the support beam in the middle of the reinforced concrete internal support for measurement and layout.

[0003] However, the support beam in the support structure is generally about 800 mm wide. After setting control points on the support beam, when the total station is set up for measurement, the tripod will occupy the entire width of the support beam after it is unfolded. There is no suitable place for the surveyor to stand during measurement, which causes certain difficulties in the line-laying work. Utility Model Content

[0004] The utility model aims to provide a deep foundation pit measurement and layout column in view of the deficiencies in the prior art, including an embedded part embedded in the support beam when the inner support beam is cast, the embedded part has four machine bolts, parts of the machine bolts are higher than the concrete finish surface of the inner support beam, after the concrete inner support beam is cast, the chassis is fixed on the machine bolts, a column body is welded on the chassis, a centering plate is arranged above the column body, and a centering screw for fixing a total station is provided at the center of the centering plate.

[0005] Preferably, the column body is a cylindrical steel pipe with a thickness of 2 mm.

[0006] Preferably, the centering disk is a circular disk with a diameter of 180 mm, and the centering screw is fixed at the center of the circular disk for fastening the total station.

[0007] Preferably, a rainproof cap made of plastic is provided on the centering screw.

[0008] Preferably, the cross section of the chassis is rectangular, and four holes are provided on the chassis, and the machine screws are correspondingly arranged in the holes.

[0009] Preferably, the chassis and the column body are reinforced by four triangular reinforcement members.

[0010] Preferably, when the reinforcement of the support beam is tied, the embedded parts and the beam reinforcement are welded together.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model solves the problem of insufficient space caused by the traditional tripod on the support beam by pre-embedding embedded parts on the support structure and installing the forced centering setting-out column at a later stage.

[0013] 2. Because the new centering plate is forced to be centered, the efficiency of measuring and setting out is improved. Each time the measuring instrument is set up, only leveling is required, and no centering is required.

[0014] 3. The utility model has a simple structure, is easy to install and disassemble, can be recycled, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the utility model when the total station is set up and in use.

[0017] Figure 2 It is a schematic diagram of the utility model when not in use.

[0018] Figure 3 It is a structural schematic diagram of the utility model.

[0019] In the figure: 1-total station, 21-centering plate, 22-centering screws, 23-rain cap, 3-column, 4-chassis, 5-embedded parts, 61-machine bolts, 62-reinforcement parts. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is described in detail below with reference to the accompanying drawings, but the protection scope of the utility model is not limited to the embodiments.

[0021] Reference Figures 1 to 3 The utility model is a deep foundation pit measurement and layout column, which can be understood as: a forced centering layout column is set on the reinforced concrete inner support, which avoids the situation that when the tripod that takes up a lot of space is used on a narrow support beam, the surveyor has no standing space and cannot measure.

[0022] The utility model includes an embedded part 5 embedded in the support beam when the inner support beam is cast, and there are four machine bolts 61 on the embedded part 5. After the concrete inner support beam is cast, the chassis 4 of the monitoring column is fixed on the machine bolts 61, and a column body 3 is welded on the chassis. Above the column body is a centering plate 21, and the center of the centering plate 21 has a centering screw 22 for fixing the total station.

[0023] Specifically, the chassis is a rectangular stainless steel plate with a thickness of 5 mm. There are four holes on the chassis, and there are machine screws in the holes to fix the chassis and the embedded parts in the concrete together. The embedded parts are rectangular steel plates with four legs, and the steel plates are connected with holes and machine screws.

[0024] Specifically, the column body is a 3mm thick cylindrical stainless steel pipe, and its height is free and can be determined according to the height of the measurement personnel.

[0025] Specifically, the centering disk is a stainless steel disk with a diameter of 180 mm. A centering screw matching the base of the total station is provided at the center of the disk to fasten the total station.

[0026] Specifically, four triangular reinforcement members are used to reinforce the chassis and the column body.

[0027] In actual applications, when tying the reinforcement of the inner support beam in concrete, the embedded parts are leveled with a level and welded together with the beam reinforcement. The embedded parts are connected with machine bolts, and the part of the machine bolts is higher than the finished surface of the inner support beam concrete. After pouring the inner support beam concrete, the machine bolts are connected to the chassis of the layout column.

[0028] It is worth noting that:

[0029] 1. There is a plastic rain cap on the centering screw. After the measurement work is completed and the total station is removed, the rain cap is screwed on the centering screw to prevent rainwater from entering the column.

[0030] 2. Except for the rain cap, the rest of the components of the utility model are made of 304 stainless steel.

[0031] As above, although the present invention has been described with reference to a specific preferred embodiment, it should not be interpreted as limiting the present invention itself. Various changes may be made to the form and details without departing from the spirit and scope of the present invention defined in the appended claims.

[0032] As above, although the utility model has been shown and described with reference to a specific preferred embodiment, it should not be interpreted as limiting the utility model itself. Various changes can be made to it in form and detail without departing from the spirit and scope of the utility model defined in the attached claims.

Claims

1. A deep foundation pit surveying and setting-out column, characterized in that: It includes embedded parts embedded in the support beam when the inner support beam is cast, and there are four machine bolts on the embedded parts. Parts of the machine bolts are higher than the concrete finish surface of the inner support beam. After the concrete inner support beam is cast, the chassis is fixed on the machine bolts, and a column body is welded on the chassis. A centering plate is arranged above the column body, and a centering screw for fixing the total station is provided in the center of the centering plate.

2. A deep foundation pit surveying and setting-out column according to claim 1, characterized in that: The column body is a cylindrical steel pipe with a thickness of 2 mm.

3. A deep foundation pit surveying and setting-out column according to claim 2, characterized in that: The centering disk is a disk with a diameter of 180 mm. The centering screw is fixed at the center of the disk and is used to fasten the total station.

4. A deep foundation pit surveying and setting-out column according to claim 3, characterized in that: A rainproof cap made of plastic is provided on the centering screw.

5. A deep foundation pit surveying and setting-out column according to claim 4, characterized in that: The cross section of the chassis is rectangular, and four holes are opened on the chassis, and the mechanism bolts are correspondingly arranged in the holes.

6. A deep foundation pit surveying and setting-out column according to claim 5, characterized in that: The chassis and the column body are reinforced by four triangular reinforcement members.

7. A deep foundation pit surveying and setting-out column according to claim 6, characterized in that: When the reinforcement of the support beam is tied, the embedded parts and the beam reinforcement are welded together.

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