Drilling tool guider
By combining the guide tube and positioning plate of the drill bit guide, the problem of unstable contact between the drill bit and the top surface of the cast-in-place pile during core drilling testing is solved, enabling safe vertical lowering of the drill bit and efficient testing.
Patent Information
- Application Number
- CN202520051500.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-01-09
AI Technical Summary
In core drilling testing, it is difficult for the drilling rig and drill bit to make safe and stable contact with the top surface of the pile being tested, especially at a distance or underwater, which can easily lead to damage to the drill rod and displacement of the drill bit, posing a safety hazard.
A drill string guide was designed, including a guide tube and a positioning plate. The guide tube provides a stable channel for lowering the drill string, and the top and bottom positioning plates ensure the vertical positioning of the drill string. The combined structure of the guide tube and the positioning plate stabilizes the position of the drill string.
It improves the stability and verticality of the drill string during the lowering process, avoids collisions and deviations, extends equipment life, improves detection efficiency, and ensures safety and accuracy.
Smart Images
Figure CN223952619U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of core drilling method detection, specifically is drilling tool guider. BACKGROUND
[0002] Core drilling method detection is a test method using special drilling machine to drill core sample from concrete, which is used to detect concrete strength, pile body integrity, pile length, sediment thickness, determine pile end bearing stratum rock shape and observe concrete internal quality, etc., has intuitive, reliable and other advantages, can provide important reference for construction unit, design unit to carry out pile foundation design.
[0003] Since core drilling method detection is a kind of semi-damaged detection means, it will cause local damage to the measured component, so there is certain limitation to the position and quantity of core drilling in actual core drilling process.If the distance between the drilling machine drilling tool and the concrete top surface of the cast-in-place pile is close in actual core drilling process, the drilling tool can be easily fixed by using the pressure of the drilling machine, and core drilling method detection can be carried out at the specified position. However, when the top surface of the measured cast-in-place pile is far away from the drilling machine, or even located underwater, it is almost impossible to fix the position of the drilling tool by using the drilling machine alone. If effective measures are not taken to control, problems such as drill rod damage and drill bit deviation may occur, and even serious safety accidents may occur. Therefore, how to safely and stably act the drilling machine drilling tool on the top surface of the cast-in-place pile is a key problem to be solved at present. UTILITY MODEL CONTENTS
[0004] (I) Technical problem solved
[0005] In view of the deficiencies of the prior art, the utility model provides a drilling tool guider, which has the advantage that the drilling tool of the drilling machine can be safely and stably contacted with the top surface of the measured concrete cast-in-place pile.
[0006] (II) Technical scheme
[0007] In order to achieve the above purpose that the drilling tool of the drilling machine can be safely and stably contacted with the top surface of the measured concrete cast-in-place pile, the utility model provides the following technical scheme: a drilling tool guider, comprising:
[0008] A guide pipe is used to provide a drilling tool lowering channel.
[0009] A bottom positioning plate is connected with the guide pipe and is used to position the core drilling detection position.
[0010] As a preferred technical scheme of the utility model, a top positioning plate is arranged opposite to the bottom positioning plate, and the guide pipe is installed between the bottom positioning plate and the top positioning plate.
[0011] As a preferred technical scheme of the utility model, the through hole for installing the guide pipe is reserved on the bottom positioning plate and the top positioning plate.
[0012] As a preferred technical scheme of the utility model, the through hole for installing the guide pipe is reserved on the bottom positioning plate and the top positioning plate.
[0013] The wing is fixedly arranged on the outer wall of the end of the guide pipe, and the wing is fixedly installed on the positioning plate by bolts, so that the end of the guide pipe is fixed in the through hole.
[0014] As a preferred technical scheme of the utility model, the bottom positioning plate, the top positioning plate and the guide pipe are integrally formed.
[0015] As a preferred technical scheme of the utility model, the shape of the bottom positioning plate and the top positioning plate corresponds to the shape of the steel casing of the concrete pouring pile.
[0016] As a preferred technical scheme of the utility model, the bottom positioning plate and the top positioning plate are triangular, circular or regular polygonal plates.
[0017] As a preferred technical scheme of the utility model, the guide pipe is provided with at least three.
[0018] (Three) beneficial effects
[0019] Compared with the prior art, the utility model provides a drill guide, which has the following beneficial effects:
[0020] 1、 the drill guide, through the setting of the guide pipe, provides stable passageway for the drill lowering, avoids the collision or interference of the drill with the surrounding environment in the lowering process, prolongs the service life of the equipment.
[0021] 2、 the drill guide, through the double-plate positioning of the top positioning plate and the bottom positioning plate, effectively improves the stability of the overall structure, ensures that the drill remains vertical in the lowering process, can accurately position the drill at the specified detection position of the concrete pouring pile, avoids deviation or shaking, and improves the detection efficiency.
[0022] 3、 the drill guide, through the through hole design on the top positioning plate and the bottom positioning plate, is convenient for the installation and replacement of the guide pipe, has simple structure, firm connection, and can also ensure that the device does not deform under the large drilling pressure in the use process. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 It is the top view of the utility model;
[0024] Figure 2 is a front view of the utility model.
[0025] In the figure: 1, steel casing; 2, bottom positioning plate; 3, guide pipe; 4, top positioning plate. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0027] Embodiment:
[0028] Please refer to Figure 1 and Figure 2 A drill guide comprises oppositely arranged top positioning plate 4 and bottom positioning plate 2, and guide pipe 3 is arranged between top positioning plate 4 and bottom positioning plate 2, which not only plays a connecting role, but also provides a drill lowering channel.
[0029] In use, bottom positioning plate 2 is placed on the top surface of the concrete bored pile, and the drill of the drilling machine enters and drills the core sample through guide pipe 3, and the guide pipe 3 provides a stable channel for the drill lowering, avoids collision or interference between the drill and the surrounding environment during the lowering process, and further prolongs the service life of the equipment, and at the same time, since bottom positioning plate 2 is placed on the top surface of the concrete bored pile, the verticality of the drill during the lowering process can also be effectively ensured, the drill can be accurately positioned at the specified detection position of the concrete bored pile, deviation or shaking is avoided, and the detection efficiency is improved.
[0030] In the utility model, guide pipe 3 is provided with at least three, such as three, four or five, and is uniformly arranged, which can provide better balance and supporting force, effectively disperse the vertical pressure of the drilling machine, and further improve the safety and stability of the device.
[0031] As Figure 1 shown, in the embodiment, the shapes of bottom positioning plate 2 and top positioning plate 4 are triangular, and in actual application, they can also be designed as circular, regular polygon and other shapes, which can correspond to the shape of steel casing 1 of the concrete bored pile, and can ensure that the guide is stably positioned in steel casing 1.
[0032] When the core drilling method is used for detecting the concrete bored pile, the length of the guide frame can be determined according to the distance between the bottom of the drilling machine and the top of the bored pile, and then the guide with a suitable specification is selected.
[0033] In the utility model, bottom positioning plate 2, top positioning plate 4 and guide pipe 3 can be integrally formed, simplify manufacturing process, reduce production cost, improve rigidity of overall structure simultaneously, reduce looseness or deviation problem due to assembly error, can also be designed as assembled type or detachable type;
[0034] For assembled type, the through hole for installing guide pipe 3 can be reserved on bottom positioning plate 2 and top positioning plate 4, then the end of guide pipe 3 is fixed by triangular steel plate welding at the through hole;
[0035] For detachable type, the through hole for installing guide pipe 3 can be reserved on bottom positioning plate 2 and top positioning plate 4, then the wing edge is fixedly arranged on the outer wall of the end of guide pipe 3, the wing edge is fixedly installed on the positioning plate by bolt, and then the end of guide pipe 3 is fixed in the through hole;
[0036] Preferably, the detachable type design is adopted, so that according to the distance between the bottom of the drilling machine and the top of the cast-in-place pile, the guide pipe 3 of different length can be replaced.
[0037] The utility model not only can be used for the core method detection of concrete cast-in-place pile, also can be used for the core method detection of other similar components.
[0038] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A drill guide, characterized in that, The utility model relates to a kind of concrete pouring pile core detection device, including: Guide pipe (3) for providing drill tool down channel; Bottom positioning plate (2) is connected with guide pipe (3), for positioning drill core detection position; Further including top positioning plate (4), it is oppositely arranged with bottom positioning plate (2), and the guide pipe (3) is installed between bottom positioning plate (2) and top positioning plate (4); The shape of the bottom positioning plate (2) and top positioning plate (4) corresponds with the shape of the steel casing (1) of concrete pouring pile.
2. The drill tool guide of claim 1, wherein: The bottom positioning plate (2) and top positioning plate (4) are both reserved with through hole for installing guide pipe (3), and the end of the guide pipe (3) is welded and fixed in through hole by triangular steel plate.
3. The drill tool guide of claim 1, wherein: The bottom positioning plate (2) and top positioning plate (4) are both reserved with through hole for installing guide pipe (3); The outer wall of the end of the guide pipe (3) is fixedly provided with wing, and the wing is fixedly installed on positioning plate by bolt, to fix the end of guide pipe (3) in through hole.
4. The drill tool guide of claim 1, wherein: The bottom positioning plate (2), top positioning plate (4) and guide pipe (3) are integrally formed.
5. The drill tool guide of claim 1, wherein: The bottom positioning plate (2) and top positioning plate (4) are triangular, circular or regular polygon plate.
6. The drill tool guide of claim 1, wherein: The guide pipe (3) is provided with at least three.