CN217735401U - Reaming type combined drilling tool for anchor hole construction - Google Patents
Reaming type combined drilling tool for anchor hole construction Download PDFInfo
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- CN217735401U CN217735401U CN202221457602.6U CN202221457602U CN217735401U CN 217735401 U CN217735401 U CN 217735401U CN 202221457602 U CN202221457602 U CN 202221457602U CN 217735401 U CN217735401 U CN 217735401U
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- reamer
- drill bit
- spring
- fixed cylinder
- reaming
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Abstract
The utility model relates to an anchor technical field especially relates to a reaming formula combination drilling tool for anchor eye construction, including the drilling rod and with drilling rod threaded connection's drill bit and reamer, the reamer includes solid fixed cylinder, reamer, movable cylinder, spring and elastic bulge, the screw thread butt joint department of drilling rod and drill bit is located to solid fixed cylinder cover, and all connects drilling rod and drill bit respectively through many countersunk screw at its both ends, and the one end of a plurality of reamer is rotationally installed in the spacing inslot on solid fixed cylinder surface through round pin axle, torsional spring, solid fixed cylinder is located to the movable cylinder cover and is close to the one end of drill bit, and its one end and through the solid fixed cylinder of spring coupling, other end pore wall butt reamer is a plurality of elastic bulge locates movable cylinder outer wall, just elastic bulge butt anchor eye. The utility model discloses a junction setting at drilling rod and drill bit the reamer carries out the reaming after having realized drilling, can make the stock form a plurality of reaming region shapes in the anchor eye, improves the joint strength of stock and base member.
Description
Technical Field
The utility model relates to an anchor technical field especially relates to a reaming formula combination drilling tool is used in anchor eye construction.
Background
With the rapid development of economic construction in China, large-scale and high-rise buildings in cities emerge in large quantities. Deep foundation construction is an important link in large and high-rise building construction, and in the processes of underground engineering, mining engineering, foundation pit and side slope engineering related to geotechnical engineering, in order to prevent stratum from deforming, collapsing or destabilizing to endanger safety, a supporting structure must be built to ensure the smooth construction process, wherein the supporting structure building by adopting an anchor rod is the most commonly used mode. However, in the anchor hole construction of the drilling tool in the prior art, hole expansion cannot be completed while drilling, so that the bonding strength between the anchoring end of the anchor rod and the base body is difficult to guarantee.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving the technical problem who exists among the prior art. Therefore, the utility model provides a reaming formula combination drilling tool is used in anchor eye construction.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides an anchor eye construction is with reaming formula combination drilling tool, including the drilling rod and with drilling rod threaded connection's drill bit and reamer, the reamer includes solid fixed cylinder, reamer, movable cylinder, spring and elastic bulge, gu fixed cylinder cover is located the screw butt joint department of drilling rod and drill bit, and its both ends all connect drilling rod and drill bit respectively through many countersunk screw, and are a plurality of the one end of reamer is rotationally installed in through round pin axle, torsional spring gu fixed cylinder surface's spacing inslot, movable sleeve locates gu fixed cylinder is close to the one end of drill bit, and its one end and through the solid fixed cylinder of spring coupling, other end butt reamer, it is a plurality of elastic bulge locates movable sleeve outer wall, just the protruding butt anchor eye pore wall of elasticity.
The utility model provides a reaming formula combination drilling tool for anchor eye construction's a preferred embodiment, the elasticity top tight reaming sword that movable cylinder passes through the spring in the spacing inslot makes the reaming sword be the folded state, and the maximum external diameter of the reaming sword of folded state is less than the maximum external diameter of drill bit.
In the utility model provides a reaming formula combination drill's for anchor eye construction preferred embodiment, the elasticity of spring is greater than the torsion of torsional spring.
The utility model provides a reaming formula combination drilling tool for anchor eye construction's a preferred embodiment, the solid fixed cylinder is close to the tip outer wall of drill bit is equipped with the flange, the inner wall of movable cylinder is equipped with the flange, the one end of spring is connected the flange, the other end is connected the flange.
In a preferred embodiment of the reaming type combination drilling tool for anchor hole construction provided by the present invention, the movable cylinder is in clearance fit with the flange.
In the utility model provides a reaming formula combination drilling tool for anchor eye construction's a preferred embodiment, elastic bulge adopts the wear-resisting rubber material to make.
Compared with the prior art, the utility model provides a reaming formula combination drilling tool for anchor eye construction's beneficial effect is: the utility model discloses a junction at drilling rod and drill bit sets up reaming is carried out after having realized drilling to the enlarger, can make the stock form a plurality of reaming regional shapes in the anchor eye, improves the joint strength of stock and base member.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
fig. 1 is a schematic structural view of a reaming type combined drilling tool for anchor hole construction provided by the utility model;
FIG. 2 is a block diagram of the reaming type combination drill for anchor hole construction shown in FIG. 1 during reaming of a borehole;
fig. 3 is a partially enlarged view of the reamer type composite drill for anchor hole construction provided in fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
The present embodiment provides a reamer type combination drill for anchor hole construction, as shown in fig. 1 and 3, comprising a drill rod 10, a drill bit 20 screwed with the drill rod, and a reamer 30.
Preferably, the reamer 30 of the present embodiment includes a fixed barrel 301, a reamer 302, a movable barrel 303, a spring 304, and an elastic protrusion 305, which are as follows:
the fixing cylinder 301 is sleeved at the thread butt joint of the drill rod 10 and the drill bit 20, specifically, two ends of the fixing cylinder 301 are respectively connected with the drill rod 10 and the drill bit 20 through a plurality of countersunk screws, and the fixing cylinder is arranged at the thread butt joint of the drill rod and the drill bit to enhance the connection strength between the drill rod and the drill bit.
One end of each of the reamer blades 302 is rotatably mounted in the limiting groove 3010 on the surface of the fixing cylinder 301 through a pin 306 and a torsion spring (not shown). Specifically, one end of the expanding cutter is rotatably arranged in the limiting groove through a pin shaft, and the torsion spring is sleeved on the pin shaft and used for providing the torsional force for expanding the expanding cutter.
The movable cylinder 303 is sleeved at one end of the fixed cylinder 301 close to the drill bit 20, and one end of the movable cylinder is connected with the fixed cylinder 301 through a spring 304, and the other end abuts against the reamer 302. Preferably, the elastic force of the spring 304 is greater than the torsion force of the torsion spring, so that the movable cylinder 303 of this embodiment tightly pushes the reamer 302 in the limiting groove 3010 through the elastic force of the spring 304, so that the reamer is in a collapsed state, and the maximum outer diameter of the reamer in the collapsed state is smaller than the maximum outer diameter of the drill bit, so that the reamer of the reamer does not work during drilling of the drill rod.
A plurality of elastic protrusions 305 are arranged on the outer wall of the movable cylinder 303, and the elastic protrusions 305 abut against the wall of the anchor hole, preferably, the elastic protrusions 305 of the present embodiment are made of wear-resistant rubber. On one hand, the elastic bulge extrudes the hole wall in the drilling process, so that the collapse probability of the hole can be effectively reduced; on the other side, the elastic bulge can increase the friction force of the movable cylinder during broaching so as to expand the broaching knife.
The working principle is as follows:
in normal drilling, the reamer of the reamer is in a collapsed state as shown in fig. 1 and 3; when the drilling tool is drilled to a set depth, reaming is carried out, at the moment, the drilling tool stops rotating and retreats, the movable sleeve overcomes the elastic force of the spring under the action of the elastic bulge, the reaming cutter is released, the reaming cutter starts to expand, after the drilling tool is pressed into the hole wall, the drilling tool rotates and retreats continuously, the reaming cutter is completely expanded and reaming operation is carried out until the reaming length meets the requirement; after reaming is finished, the drilling tool is only required to be controlled to advance, and at the moment, the movable barrel draws the reaming cutter in under the action of the spring to finish reaming. The embodiment can realize the reaming of a plurality of positions in the anchor hole so as to strengthen the bonding strength of the anchor rod and the base body.
Preferably, the outer wall of the end part of the fixed cylinder 301 close to the drill bit 20 of the present embodiment is provided with a flange 3012, the inner wall of the movable cylinder 303 is provided with a flange 3032, one end of the spring 304 is connected to the flange 3032, and the other end is connected to the flange 3012. Further, the movable cylinder of this embodiment with flange clearance fit utilizes movable cylinder to cover the flange, prevents that soil bits from getting into in the movable cylinder.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes made by the present specification can be changed, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.
Claims (6)
1. The utility model provides an anchor eye construction is with reaming formula combination drilling tool, including the drilling rod and with drilling rod threaded connection's drill bit, its characterized in that: still include the enlarger, the enlarger includes solid fixed cylinder, reamer, a movable cylinder, spring and elastic bulge, gu fixed cylinder cover is located the screw butt joint department of drilling rod and drill bit, and its both ends are all connected drilling rod and drill bit respectively through many countersunk screw, and are a plurality of reamer's one end through round pin axle, torsional spring rotationally install in gu fixed cylinder surface's spacing inslot, movable cylinder cover is located gu fixed cylinder is close to the one end of drill bit, and its one end and through the solid fixed cylinder of spring coupling, other end butt reamer, it is a plurality of elastic bulge locates movable cylinder outer wall, just elastic bulge butt anchor eye pore wall.
2. The reaming type combined drilling tool for anchor hole construction as claimed in claim 1, characterized in that: the movable barrel tightly props the broaching cutter in the limiting groove through the elastic force of the spring, so that the broaching cutter is in a furled state, and the maximum outer diameter of the broaching cutter in the furled state is smaller than that of the drill bit.
3. The reamer type combined drilling tool for anchor hole construction according to claim 1, wherein: the elasticity of the spring is greater than the torsion of the torsion spring.
4. The reaming type combined drilling tool for anchor hole construction as claimed in claim 1, characterized in that: the fixed cylinder is close to the outer wall of the end part of the drill bit is provided with a flange, the inner wall of the movable cylinder is provided with a flange, one end of the spring is connected with the flange, and the other end of the spring is connected with the flange.
5. The reamer type combined drilling tool for anchor hole construction according to claim 4, wherein: the movable cylinder is in clearance fit with the flange.
6. The reamer type combined drilling tool for anchor hole construction according to claim 1, wherein: the elastic bulge is made of wear-resistant rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221457602.6U CN217735401U (en) | 2022-06-10 | 2022-06-10 | Reaming type combined drilling tool for anchor hole construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221457602.6U CN217735401U (en) | 2022-06-10 | 2022-06-10 | Reaming type combined drilling tool for anchor hole construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217735401U true CN217735401U (en) | 2022-11-04 |
Family
ID=83840348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221457602.6U Active CN217735401U (en) | 2022-06-10 | 2022-06-10 | Reaming type combined drilling tool for anchor hole construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217735401U (en) |
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2022
- 2022-06-10 CN CN202221457602.6U patent/CN217735401U/en active Active
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