一种基坑爆破布孔器
By designing a counterweight support, measurement and positioning, and angle reference mechanism, and combining it with a magnet to fix a semi-circular scale plate, the operation of the pit blasting hole-laying device has been simplified and the scale has been protected. This solves the problems of cumbersome operation and easy damage to the scale in the existing technology, and improves the hole-laying efficiency and equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO LEIYE CONSTRUCTION ENGINEERING CO LTD
- Filing Date
- 2025-09-10
- Publication Date
- 2026-07-17
AI Technical Summary
Existing pit blasting hole-laying tools require frequent rotation and locking of the measuring angle during circumferential hole laying, which makes operation cumbersome and the scale markings are easily damaged, affecting service life.
A hole-laying device for foundation pit blasting was designed. It adopts a counterweight support mechanism, a measurement and positioning mechanism and an angle reference mechanism. A semi-circular scale plate is fixed by magnetic adsorption to form a circular scale, which simplifies the hole-laying operation and protects the scale marks when not in use.
It reduces the operational difficulty of the perforation process, improves efficiency, extends the service life of the equipment, and protects the scale markings from damage.
Smart Images
Figure CN224517565U_ABST
Abstract
Claims
1. A blast hole distributor for a foundation pit blast, characterised in that, include: A counterweight support mechanism is provided to provide an installation base for the measuring and positioning mechanism and the angle reference mechanism. A measuring and positioning mechanism, used to locate the borehole in conjunction with an angle reference mechanism; and An angle reference mechanism includes a semi-circular scale plate A fixedly sleeved on the top outer side of the mounting column. A semi-circular scale plate B is movably connected to the top right side of the semi-circular scale plate A via a hinge. Both the semi-circular scale plate A and the semi-circular scale plate B are transparent plates. An avoidance groove is provided in the middle of the side of the semi-circular scale plate B closest to the semi-circular scale plate A. Multiple scale marks are evenly arranged on the top of the semi-circular scale plate A and the semi-circular scale plate B. The included angle between two adjacent scale marks is 30°. A magnet A is fixedly nested on the top of the semi-circular scale plate A, and a magnet B is fixedly nested on the top of the semi-circular scale plate B.
2. The excavation blast hole distributor of claim 1, wherein: The counterweight support mechanism includes a counterweight base, and a mounting column is fixedly installed at the top center of the counterweight base.
3. A foundation pit blast hole distributor according to claim 2, characterized in that: A lifting handle is fixedly installed on the left side of the counterweight base, and a rubber anti-slip sleeve is fitted on the outside of the lifting handle.
4. A foundation pit blast hole distributor according to claim 3, characterized in that: The measuring and positioning mechanism includes a rotating block that is rotatably sleeved on the outer side of the mounting column, and a scale pointer is fixedly installed on the top of the back of the rotating block.
5. A foundation pit blast hole distributor according to claim 4, characterized in that: The scale pointer is fixedly provided with a placement box on its front side. The placement box has an opening at the top and an avoidance passage on its front side.
6. A foundation pit blast hole distributor according to claim 5, characterized in that: A measuring tape is fixed inside the placement box by friction, and the tape measure extends to the outside of the placement box through a clearance channel.