Double-layer adjustment centering observation support

Abstract

The utility model discloses a double-layer adjusting and centering observation support which is characterized by comprising a base platform, a rotary supporting column, a support, a bottom centering disc, a fixing device, a fixing hollow screw, a screwing hollow handle and a connecting device. The base platform is connected with the bottom centering disc through a support in a welded mode, the fixing device is installed in the connecting device and rotates and slides with the rotating supporting column as the circle center, and the fixing hollow screw and the screwing hollow handle are connected in an embedded mode to form the fixing device. During measurement and monitoring, the double-layer adjustment centering observation support is mounted on a pouring observation pillar, a total station is mounted on a base platform and centered, and then a prism is mounted on a bottom centering disc, so that up-down forced centering can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to surveying and mapping monitoring field especially a double -deck regulation and calibration centring observation support. BACKGROUND

[0002] The most common measuring instrument used in foundation pit monitoring is a total station, which is used to observe monitoring items such as settlement and horizontal displacement of the foundation pit. When using the total station for manual observation, a tripod is often used to install the total station, or a concrete observation pier is built on the side of the foundation pit to install the total station. The tripod needs to be re-erected for each measurement and is taken away after measurement, which is time-consuming and labor-intensive. The concrete observation pier cannot be recycled after the project is completed, resulting in waste. In addition, sometimes a measurement point needs to serve as both a measurement point and a station, which requires repeated erection of the tripod and is cumbersome.

[0003] The commonly used double-layer centring disc on the market is coaxially connected by two centring discs through a support, which to some extent solves the problem that a measurement point sometimes needs to serve as both a measurement point and a station. However, due to the non-absolute flatness of the observation pier surface and the structural defects of the centring disc itself, the center point of the upper centring disc deviates from that of the lower centring disc, which cannot be corrected. If the above problems occur, the measurement data will have a large error.

[0004] In addition, the existing observation support usually requires complex operation steps and a large amount of time when installing, which not only reduces the work efficiency, but also may cause excessive errors. Therefore, there is an urgent need in the market for an observation support that can simplify the centering operation and improve the measurement accuracy.

[0005] The applicant found that the conventional centering disc has the following deficiencies in measurement work: large measurement error.

[0006] Therefore, a double-layer regulation and calibration centring observation support is provided. CONTENT OF THE UTILITY MODEL

[0007] The utility model aims at providing a double-layer regulation and calibration centring observation support, which is more stable and ensures accurate measurement data.

[0008] The application provides a double-layer regulation and calibration centring observation support, which adopts the following technical scheme:

[0009] A double-layer regulation and calibration centring observation support, characterized by comprising a base platform, a rotating support, a support, a bottom centring disc, a fixing device, a fixed hollow screw, a rotating hollow handle, and a connecting device. The base platform and the bottom centring disc are connected by welding through the support, the fixing device is installed in the connecting device to rotate and slide around the rotating support as the center, and the fixed hollow screw and the rotating hollow handle are embeddedly connected to form the fixing device.

[0010] By adopting the technical scheme, during measurement monitoring, the double-layer calibration centering observation support is installed on the pouring observation pier, the total station instrument is installed on the base platform and is centered, and then the prism is installed on the bottom centering disc, so that the forced centering centering can be guaranteed.

[0011] Further, the base platform is a circular material with a thickness of 30mm at the back, and the middle movable area has a thickness of 10mm, and the movable area of the connecting device is equally divided at the edge of the base platform.

[0012] Further, the base platform, the rotating column, the support, the bottom centering disc, the fixing device, the fixed hollow screw and the connecting device are all metal materials.

[0013] Further, the hollow handle is made of plastic material.

[0014] Further, the fixed hollow screw and the hollow handle are coaxial with the hollow parts thereof.

[0015] Further, the hollow bottom of the fixed hollow screw has the same diameter as the hollow upper part of the hollow handle.

[0016] Further, the fixed hollow screw and the hollow handle are coaxially embedded.

[0017] Beneficial effects

[0018] Compared with the prior art, the double-layer calibration centering observation support has the advantages that installation is convenient and stable, and the total station instrument and the prism can be forced to be centered after being installed on the upper and lower layers. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be further explained in connection with the drawings and embodiments.

[0020] Figure 1 It is a front perspective view of the utility model.

[0021] Figure 2 It is a front inclined view of the utility model.

[0022] Figure 3 It is a schematic view of the upper part of the utility model.

[0023] Figure 4 It is a top view of the upper part of the utility model.

[0024] In Figure 1 1, base platform, 11, rotating column, 2, support, 3, bottom centering disc, 4, fixing device, 41, fixed hollow screw, 42, hollow handle, 5, connecting device. DETAILED DESCRIPTION

[0025] The application will be further described in detail below with reference to the accompanying drawings.

[0026]

Example 1

[0027] The technical solutions of the present application will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments.

[0028] The components of the embodiments of the present application generally described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application.

[0029] Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of the present application.

[0030] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] The circuits, electronic components and control modules involved are all prior art, and those skilled in the art can implement them without further description. The content protected by the present application does not involve improvement of software and methods.

[0033] The utility model provides a double -deck regulation and adjustment centering observation support, its characterized in being: including base platform 1, rotating support 11, support 2, bottom centering disc 3, fixing device 4, fixed hollow screw 41, screw hollow handle 42, connecting device 5, base platform 1 and bottom centering disc 3 are connected through support 2 welding, fixing device 4 is installed in connecting device 5 to rotate and slide with rotating support 11 as the center, fixed hollow screw 41 and screw hollow handle 42 inlayed connection constitute fixing device 4.

[0034] By adopting the above technical scheme, when measuring and monitoring, the double -deck regulation and adjustment centering observation support is installed on the pouring observation pier, the total station is installed on the base platform and is centered, and then the prism is installed on the bottom centering disc, so that the forced centering and centering can be guaranteed.

[0035] Further, the base platform 1 is a circular material with a thickness of 30mm at the back, and the middle movable area is 10mm thick, and the connecting device 5 is divided into three parts at the edge of the base platform 1.

[0036] Further, the base platform 1, rotating support 11, support 2, bottom centering disc 3, fixing device 4, fixed hollow screw 41 and connecting device 5 are all made of metal material.

[0037] Further, the screw hollow handle 42 is made of plastic material.

[0038] Further, the fixed hollow screw 41 and the screw hollow handle 42 are coaxial with the hollow parts, respectively.

[0039] Further, the diameter of the hollow bottom of the fixed hollow screw 41 is the same as the diameter of the hollow upper part of the screw hollow handle 42.

[0040] Further, the fixed hollow screw 41 and the screw hollow handle 42 are coaxially inlaid connected.

[0041] The double -deck regulation and adjustment centering observation support is suitable for many measurement and monitoring occasions, and is mainly used for opposite observation, deformation monitoring and the like.

[0042] Opposite observation refers to the position exchange between the instrument and the target rod in the trigonometric leveling, that is, observing another to-be-determined elevation point from a known elevation point, and then observing the known elevation point from the to-be-determined elevation point, so as to eliminate or reduce errors and improve the measurement accuracy.

[0043] According to the design drawing and actual measurement requirements, the base position is positioned, and then the concrete is poured to the observation pier bottom base, the center point is accurately laid out, and the template wood box (steel mold) center position is determined. The reinforcement template is fixed, the concrete is poured, the double-layer calibration centering observation support is fixed and installed, the level is used, and the bottom centering disc 3 of the double-layer calibration centering observation support is adjusted to be horizontal. After the correction is completed, the wood box is removed after the concrete reaches the design requirement.

[0044] After installation is completed, the total station instrument is placed on the base platform 1, the position of the total station instrument is roughly determined, the rotating fixing device 4 is used to fix the total station instrument, but is not tightened, so that the total station instrument can be freely moved on the base platform 1, the optical pointing device is adjusted, the crosshair imaging is clear, the position of the total station instrument is adjusted through observation of the optical pointing device. When the pointing device is roughly aligned with the center of the bottom centering disc 3, the rotating fixing device 4 is tightened. The total station instrument foot screw is adjusted to be leveled, the rotating fixing device 4 is slightly loosened through observation of the pointing device, the instrument is translated (the instrument cannot be rotated), and the instrument is accurately aligned with the survey station. The rotating fixing device 4 is tightened again, and the instrument is accurately leveled again; the operation is repeated until the instrument is accurately aligned with the survey station.

[0045] After the total station instrument is installed, the prism is installed on the bottom centering disc 3.

[0046] After the installation of the two survey stations is completed, the opposite observation can be performed.

[0047] Meanwhile, the prism and the total station instrument also need to be installed at one survey station for deformation monitoring of a foundation pit, and the same installation mode is used.

[0048] The working process and beneficial effects of the utility model are as follows: convenient and stable installation, and the two-layer total station instrument and prism are more easily centered.

Claims

1. A two-layer calibration centering observation support, characterized in that: It includes base platform (1), rotating column (11), support (2), bottom centering disc (3), fixing device (4), fixed hollow screw (41), rotating hollow handle (42), connecting device (5), the base platform (1) and bottom centering disc (3) are welded with support (2) connection, fixing device (4) is installed in connecting device (5) to rotate sliding with rotating column (11) as the center, fixed hollow screw (41) and rotating hollow handle (42) inlayed connection constitute fixing device (4).

2. The dual-layer calibrated centering observation support according to claim 1, characterized in that, The base platform (1) is a circular material with 30mm thickness at the back, 10mm thickness at the middle movable area, and the movable area of connecting device (5) is equally divided into three parts at the edge of base platform (1).

3. The dual-layer calibrated centering observation support of claim 1, wherein, The base platform (1), rotating column (11), support (2), bottom centering disc (3), fixing device (4), fixed hollow screw (41) and connecting device (5) are all metal materials.

4. The dual-layer calibrated centering observation support of claim 1, wherein, The rotating hollow handle (42) is plastic material.

5. The dual-layer calibrated centering observation support of claim 1, wherein, The fixed hollow screw (41) and rotating hollow handle (42) are coaxial with the hollow parts respectively.

6. The dual-layer calibrated centering observation support of claim 1, wherein, The diameter of the hollow bottom of fixed hollow screw (41) is the same as the diameter of the hollow upper part of rotating hollow handle (42).

7. The dual-layer calibrated centering observation support of claim 1, wherein, The fixed hollow screw (41) and rotating hollow handle (42) are coaxially inlaid connected.

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