Foundation pit axis pay-off measuring tool
By designing a measuring tool for laying the axis of the foundation pit, the problem of unstable assembly of the tape ruler and the lead sinker is solved, and more efficient construction operations and longer equipment service life is achieved.
Patent Information
- Application Number
- CN202421546088.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-07-02
AI Technical Summary
During the process of laying the foundation pit axis, due to the lack of special tools, the tape ruler and the lead sinker cannot be stably assembled, resulting in easy damage to the tape ruler and difficult to shut down the lead sinker, resulting in cumbersome verification and calibration construction operations.
A foundation pit axis line measuring tool is designed, including a card sleeve, a wire reel and a lead sinker. A hole is set in the middle of the hood for the tape ruler to pass through, a rope is installed in the reel and a lead sinker is hung to achieve stable assembly and flexible sliding of the tape ruler and lead sinker.
Through this measuring tool, the damage to the tape ruler is reduced, the shutdown time of the lead sinker is shortened, and the verification and calibration construction operation becomes easier and more efficient, improving the efficiency of measuring the axis of the foundation pit.
Smart Images
Figure CN222671081U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of general surveying and mapping tools, in particular to a foundation pit axis laying-out measuring tool. Background Art
[0002] Laying out lines is an important process in the construction of structural components, especially for infrastructure projects that are developed in phases. Once there is a deviation in laying out lines, it will cause deviations in subsequent construction and the completed project, and the losses caused will be immeasurable.
[0003] The process of laying out and reviewing the foundation axis requires first using a total station to lay out and mark based on the drawings. It is best to use vertically crossed cross lines as the marking points, so that the foundation points can be found both horizontally and vertically. After the marking is completed, the shear wall or supporting column is used as the basis, and the laying-out marks are actually measured with tools such as a tape measure and a plumb bob, and the deviation is checked. The operation process involves multi-point verification, and auxiliary marking will be performed during the verification process. In the above construction process, due to the lack of special tools, the tape measure and the plumb bob cannot be stably assembled, resulting in the tape measure being easily damaged and the plumb bob being difficult to stop, making the verification construction operation cumbersome. There is currently a lack of specific solutions to the above problems. Utility Model Content
[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a foundation pit axis line-laying measuring tool with a simple structure, flexible assembly, stable assembly of a tape measure and a plumb bob, improved operating efficiency and the ability to assist in observing marking points.
[0005] The device includes a ferrule, wherein a hole is provided in the middle of the ferrule for a tape measure to pass through;
[0006] A wire reel is fixedly arranged at the center below the ferrule;
[0007] A wire rope is arranged inside the wire reel, and a lead weight is hung at the bottom of the wire rope.
[0008] The effect achieved in this way is that the tape measure passes through the hole in the middle of the ferrule, so that the ferrule can slide flexibly on the tape measure to avoid damaging the tape measure. The reel at the bottom is used to reel in and release the line, and the bottom lead sinker is used to measure or calibrate the marking line, and slides along the direction of the tape measure during the measurement or calibration process to measure the position, i.e. the verticality, of the marking line.
[0009] The beneficial effects of the utility model are as follows: the utility model fills a gap in the market, realizes the rapid positioning, observation and verification of the foundation pit axis line with a simple structure, solves the problems of unstable assembly, difficult movement and long downtime of the plumb bob and tape measure, improves the efficiency of the foundation pit axis line laying and measurement, and the equipment has low cost and long service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural schematic diagram of a foundation pit axis laying-out measuring tool described in the utility model;
[0011] Figure 2 is based on Figure 1 Schematic diagram of the assembly structure;
[0012] Figure 3 is a schematic structural diagram of Example 2;
[0013] Figure 4 is based on Figure 1 Perspective, schematic diagram of the structure of the protractor disc from a bird's-eye view;
[0014] Reference numerals:
[0015] 1- Angle disc 2- Clamp 3- Reel 4- Sinking weight
[0016] 21-upper pressure plate 22-lower pressure plate 31-cord
[0017] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0018] Reference Figure 1 , Figure 2 The utility model discloses a foundation pit axis laying-out measuring tool, comprising a ferrule 2, wherein a hole is provided in the middle of the ferrule 2 for a tape measure to pass through;
[0019] A wire reel 3 is fixedly arranged at the center below the ferrule 2;
[0020] The reel 3 is provided with a wire rope 31 , and a lead weight 4 is suspended at the bottom of the wire rope 31 .
[0021] The effect achieved in this way is that the tape measure passes through the hole in the middle of the ferrule 2, so that the ferrule 2 can slide flexibly on the tape measure to avoid damaging the tape measure. The reel 3 at the bottom is used to reel in and release the line, and the bottom plumb bob 4 is used to measure or calibrate the marking line, and slides along the direction of the tape measure during the measurement or calibration process to measure the position, i.e. the verticality, of the marking line.
[0022] Example 1, as shown in the accompanying drawings of the specification Figure 1 or Figure 2 As shown, the ferrule 2 is composed of a plate body connected in sequence on four sides, with both ends thereof being transparent and a rectangular hole being arranged in the center thereof.
[0023] Preferably, the width of the pore is arranged to fit the measuring tape, and the ferrule 2 is slidably arranged on the measuring tape in a pre-assembled form.
[0024] The effect achieved by this is to facilitate the overall storage and immediate use of the equipment.
[0025] Example 2, as shown in the accompanying drawings of the specification Figure 3 As shown, the ferrule 2 is a split structure, including an upper pressing plate 21 and a lower pressing plate 22. The outer sides of the upper pressing plate 21 and the lower pressing plate 22 are provided with corresponding buckles, and the upper pressing plate 21 and the lower pressing plate 22 are connected by bracket buckles.
[0026] The effect achieved by this is that the device can be quickly disassembled and assembled, and the device can be fixed on any measuring tape in an external form.
[0027] Preferably, a ball bearing is also provided on the bottom surface of the upper pressing plate 21. The effect achieved by this is to facilitate the device to slide on the tape measure.
[0028] Embodiment 3: An angle disc 1 is rotatably disposed on the upper surface of the ferrule 2, and the angle disc 1 is a transparent disc, and its diameter is larger than the length and width of the ferrule 2;
[0029] Scale marks are arranged on the protractor disc 1 , and the scale marks include angle scale marks arranged around the protractor disc 1 , and vertical marks that are cross-shaped and whose intersection is located at the center of the protractor disc 1 .
[0030] The effect achieved by this is that the protractor 1 and the plumb bob 4 can be used in coordination with each other to observe and verify the position and verticality of the marking line based on actual measurement.
[0031] In the fourth embodiment, the cable reel 3 comprises a housing, a coil spring and a cable 31, and a locking mechanism is also provided on the cable reel 3. The locking mechanism is used to lock the length of the cable 31 that leaks out.
[0032] Embodiment 5, the plumb bob 4 is in the form of a cone or a pyramid.
[0033] The effect achieved by this is a corresponding marking line.
[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims.
[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A foundation pit axis laying-out measuring tool, comprising a ferrule, wherein a hole is provided in the middle of the ferrule, and characterized in that: A wire reel is fixedly arranged at the center below the ferrule; A wire rope is arranged inside the wire reel, and a lead weight is hung at the bottom of the wire rope.
2. A foundation pit axis laying-out measuring tool according to claim 1, characterized in that: The ferrule is composed of a plate body connected in sequence on four sides, with two ends thereof being transparent and a rectangular hole being arranged in the center thereof.
3. A foundation pit axis laying-out measuring tool according to claim 1, characterized in that: The clamping sleeve is a split structure, including an upper pressing plate and a lower pressing plate. The outer sides of the upper pressing plate and the lower pressing plate are provided with corresponding buckles, and the upper pressing plate and the lower pressing plate bracket are buckled and connected.
4. A foundation pit axis laying-out measuring tool according to claim 1, characterized in that: An angle disc is rotatably arranged on the upper surface of the ferrule, and the angle disc is a transparent disc, and its diameter is larger than the length and width of the ferrule; The protractor disc is provided with scale marks, which include angle scale marks arranged around the protractor disc and vertical marks which are cross-shaped and whose intersection is located at the center of the protractor disc.
5. The foundation pit axis laying-out measuring tool according to claim 1, characterized in that: The wire reel comprises a housing, a coil spring and a wire rope, and a locking mechanism is also arranged on the wire reel.
6. A foundation pit axis laying-out measuring tool according to claim 1, characterized in that: The lead sinker is in the form of a cone or a pyramid.