一种钢筋笼与浇筑模板间距测量装置
By designing a device for measuring the distance between a steel cage and a casting template, equipped with a laser rangefinder and an electromagnet, the problems of measurement difficulties and safety hazards before pile foundation pouring were solved, and accurate and safe distance measurement was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU HUAYUMING TECH CO LTD
- Filing Date
- 2025-09-11
- Publication Date
- 2026-07-17
AI Technical Summary
Before the pile foundation is poured, it is difficult and inaccurate to measure the distance between the steel cage and the pouring formwork. There are safety hazards for operators when they go down into the foundation pit, and it is difficult to place manual measuring tools in place.
Design a device for measuring the distance between a rebar cage and a casting formwork. A laser rangefinder is lowered to the bottom of the foundation pit under the pull of a traction rope. The distance between the rebar cage and the casting formwork is measured by the laser rangefinder. An electromagnet and a tilt sensor are also provided to ensure the accuracy and safety of the measurement.
It enables accurate measurement of the distance between the rebar cage and the casting formwork in confined spaces, eliminating the need for operators to go down into the pit, thus improving the accuracy and safety of the measurement results.
Smart Images

Figure CN224517705U_ABST
Abstract
Claims
1. A device for measuring the distance between a reinforcement cage and a formwork, characterised in that, include: An outer casing, within which an instrument mounting bracket is provided; A laser rangefinder is mounted on the instrument mounting bracket. The instrument mounting bracket includes: Adjustable guide rail frame, wherein two adjustable guide rail frames are provided, which are symmetrically arranged on the left and right sides inside the outer shell; The rangefinder suspension bracket is horizontally mounted on the two aforementioned distance adjustment guide rails; The laser rangefinder is centrally positioned below the rangefinder suspension frame; The laser rangefinder has a through hole on the bottom surface of the outer casing.
2. The device for measuring the distance between the reinforcement cage and the pouring form according to claim 1, characterized in that, The rangefinder suspension frame is provided in several groups, with each group arranged at equal intervals; Each set of rangefinders has a laser rangefinder centrally located below its suspension bracket. Each of the laser rangefinders has a through hole on the bottom surface of the housing.
3. The device for measuring the distance between the reinforcement cage and the pouring form according to claim 1, characterized in that, The rangefinder suspension bracket is provided in several groups, and the rangefinder suspension bracket is laterally movably mounted on the distance adjustment guide rail. Each set of rangefinders has a laser rangefinder centrally located below its suspension bracket. An opening is provided on the bottom surface of the outer casing; The open area of the passage can simultaneously cover several sets of the laser rangefinders.
4. The device for measuring the distance between the reinforcement cage and the pouring form according to claim 1, characterized in that, A set of electromagnets is installed at each of the front and rear ends near the interior of the outer casing; Each set of electromagnets is equipped with a power module; The power module is used to provide electrical energy to the electromagnet.
5. The device for measuring the distance between the reinforcement cage and the pouring form according to claim 1, characterized in that, A double wire-passing hole is provided on the side wall at the front end of the housing; a single wire-passing hole is provided on the side wall at the rear end of the housing.
6. The device for measuring the distance between the reinforcement cage and the pouring form according to claim 1, characterized in that, A tilt sensor is installed inside the housing. The tilt sensor is communicatively connected to the input terminal of the microprocessor, and the output terminal of the microprocessor is communicatively connected to a buzzer.
7. The device for measuring the distance between the reinforcement cage and the pouring form according to claim 1, characterized in that, The outer shell has a "spindle-shaped" structure, and the four side walls of the outer shell are inclined outward.