CN214945544U - Anchoring structure with barbs - Google Patents
Anchoring structure with barbs Download PDFInfo
- Publication number
- CN214945544U CN214945544U CN202120645784.9U CN202120645784U CN214945544U CN 214945544 U CN214945544 U CN 214945544U CN 202120645784 U CN202120645784 U CN 202120645784U CN 214945544 U CN214945544 U CN 214945544U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- drill bit
- oversheath
- outer sheath
- sheetmetal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004873 anchoring Methods 0.000 title claims description 18
- 239000002184 metal Substances 0.000 claims description 20
- 238000009434 installation Methods 0.000 abstract description 8
- 239000002689 soil Substances 0.000 abstract description 5
- 238000005553 drilling Methods 0.000 abstract description 4
- 239000011435 rock Substances 0.000 abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Abstract
The utility model provides a take anchor structure of barb, establish the oversheath outside the interior screw rod including interior screw rod and cover, oversheath and interior screw rod have the interior of mutual matching respectively, the external screw thread, the oversheath top is provided with the oversheath nut, interior screw rod bottom is provided with the spear shape drill bit, the drill bit periphery is connected with the sheetmetal, the sheetmetal is provided with the slit with the drill bit junction, the interior screw rod body of rod and drill bit handing-over department are pre-opened there is the joint-cutting, the sheetmetal top has from interior to exterior inclined plane that rises gradually, the oversheath bottom has the inclined plane the same with drill bit top inclined plane angle. The utility model discloses a bottom sheetmetal and slit, joint-cutting setting for the anchor structure can drive the oversheath through rotatory oversheath nut and push open wing sheetmetal and form the umbrella-type head of great area after the installation, thereby forms the barb, effectively increases resistance to plucking ability. The utility model discloses can directly tamp the entering to soil texture structure, can adopt the mode of drilling to install again to rock or concrete structure.
Description
Technical Field
The invention belongs to the technical field of drilling or nailing installation of anchoring bodies, and relates to an anchoring structure with barbs.
Background
During drilling installation, holes are usually drilled in the wall and the pile body, and expansion screws are used for connection and fixation. One end of the screw is provided with threads, the other end of the screw is provided with a horn-shaped taper, and the fixation of the screw is realized by utilizing wedge-shaped inclination to promote expansion to generate friction gripping force so as to achieve the fixation effect. The existing expansion screw has insufficient anti-pulling capability because the rear part of the trumpet is along the direction of the hole, and when the pulling force is slightly large, the metal strip in the expansion screw just follows the direction of the force and is easy to pull out. Therefore, the existing expansion screw cannot be used in application scenes with high pulling force, such as a hook anchoring device, a deformation monitoring normal suspension point anchoring device and other occasions with high requirements on quick installation of anchoring bodies, which are required by tunnel convergence deformation monitoring.
Disclosure of Invention
In order to solve the problem, the utility model discloses not enough to current inflation screw existence has designed the anchor structure of a section area barb, and resistance to plucking ability is superior.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides an anchor structure of taking barb, establish the oversheath outside the interior screw rod including interior screw rod and cover, oversheath and interior screw rod have interior, the external screw thread of mutual matching respectively, the oversheath top is provided with the oversheath nut, interior screw rod bottom is provided with spear shape drill bit, the drill bit periphery is connected with the sheetmetal, the sheetmetal is provided with the slit with the drill bit junction, the interior screw rod body of rod and drill bit handing-over department have the joint-cutting in advance, the sheetmetal top has the inclined plane that rises gradually from inside to outside, the oversheath bottom has the inclined plane the same with drill bit top inclined plane angle.
Further, the cutting seams are streamline.
Further, the outer sheath has threads on an outer surface thereof.
Furthermore, the nut of the outer sheath is provided with two opposite inner and outer linkage bolt holes, and the inner screw rod is provided with through holes at corresponding positions for avoiding driving the inner screw rod when the outer sheath is screwed in, so that the outer sheath is used for opening the wing-shaped metal sheet when the outer sheath advances relative to the inner screw rod.
Furthermore, a through hole is formed in the top of the rod body of the inner screw rod.
Compared with the prior art, the utility model has the advantages of as follows and beneficial effect.
The utility model discloses a bottom sheetmetal and slit, joint-cutting setting for the anchor structure can drive the oversheath through rotatory oversheath nut after the nail is gone into or the installation and push away and form the umbrella-type head of great area under the oversheath effort behind the wing sheetmetal, thereby forms the barb, effectively increases resistance to plucking ability. The utility model discloses can directly tamp the entering to soil texture structure, can adopt the mode of drilling to install again to rock or concrete structure. For the application occasions which are increased or not embedded later, the installation can be carried out by adopting a mode of immediate installation and immediate use, and the method has engineering significance.
Drawings
Fig. 1 is the side view of the anchoring structure with barbs, which is wholly or partially cut open.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a bottom view of fig. 1.
Description of reference numerals:
1-internal screw thread, 2-outer sheath nut, 3-soil body, 4-internal screw, 5-clearance gap, 6-cutting seam, 7-outer sheath internal thread,
8-outer sheath, 9-drill bit, 10-inner screw positioning fixing bolt through hole, 11-wing-shaped metal sheet, 12-inner and outer linkage bolt hole during jacking,
13-slit.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and embodiments, which are to be understood as illustrative only and not limiting the scope of the invention.
The utility model provides a pair of take anchor structure of barb, as shown in fig. 1-3, including interior screw rod 4 and the oversheath 8 of setting outside the interior screw rod, be provided with interior screw rod external screw thread 1 on the interior screw rod, the oversheath is provided with oversheath internal thread 7, external screw thread and oversheath external screw thread phase-match on the interior screw rod. The top of the inner screw rod body is provided with an inner screw rod positioning fixing bolt through hole 10 which can be inserted into a stainless steel rod for fixing, abuts against the outer sheath to exit a path and can also be used as a prefabricated threading hole or a hook hole. The top end of the outer sheath is provided with an outer sheath nut 2, so that the operation is convenient. The inner screw has a protruding bit 9 at the bottom, which is spear-shaped and has a smaller cross-sectional area at the bottom to provide a higher pressure during driving. The widest position of the drill bit is larger than the outer diameter of the screw rod part of the inner screw rod and is the same as the outer diameter of the outer sheath. A joint 6 is pre-opened at the joint of the inner screw rod body and the drill bit along the downstream direction. The periphery of the drill bit is provided with a tilting metal sheet 11, and a slit 13 is arranged at the joint of the metal sheet and the drill bit, so that the metal sheet can be tilted downwards under the action of force and can be expanded to a larger range. The top of the metal sheet is provided with an inclined plane which gradually rises from inside to outside, the bottom of the outer sheath is provided with an inclined plane with the same angle as the inclined plane at the top of the drill bit, and when the outer sheath is sleeved on the inner screw rod in a rotating mode, the inclined plane at the bottom of the outer sheath props against the inclined plane at the top of the metal sheet to form better downward pressure, so that the separation of the screw rod at the cutting joint is facilitated. In fig. 1, a clearance gap 5 is formed between the outer sheath and the spear-shaped head of the inner bolt, and the clearance gap is used for showing that the outer sheath and the metal sheet are not integrated, when the barbed anchoring structure is used, the bottom inclined surface of the outer sheath is tightly pressed against the top inclined surface of the spear-shaped head of the inner bolt, and the metal sheet is deformed to a certain extent.
In order to facilitate the outer sheath to be screwed into the soft soil body, thick threads can be additionally arranged on the outer surface of the outer sheath, in order to ensure that the outer sheath and the inner screw rod are relatively fixed during screwing, two opposite inner and outer linkage bolt holes during jacking are additionally arranged at the position of a nut on the outer sheath, and through holes are formed in corresponding positions on the inner screw rod, so that a bolt can be conveniently inserted into the outer sheath and the inner screw rod to be positioned at the same time (a gap is formed between the bottom inclined plane of the outer sheath 8 and the top inclined plane of the metal sheet during positioning). When the inner and outer linkage bolt holes 12 are inserted into the cylindrical bolt (the length is consistent with the diameter of the nut) during jacking, the outer sheath 8 and the inner screw rod 4 are ensured to be synchronously screwed in.
When the anchoring structure with the barbs is used, the corresponding specification diameter is selected according to the requirement of tension, the outer sheath 8 is screwed outside the inner screw rod in advance, the inclined surface at the bottom of the outer sheath and the inclined surface at the top of the metal sheet can form a clearance gap, and a stainless steel rod with the corresponding diameter is selected to be inserted into the inner and outer linkage bolt holes. For the soil body 3, directly nailing into the anchoring structure, after penetrating into a preset position, pulling out the bolt, selecting a stainless steel bar with a corresponding diameter to be inserted into the inner screw rod positioning and fixing bolt hole, only rotating the nut at the top end of the outer sheath 8, so that the outer sheath 8 advances to push open the metal sheet 11 to form barb anchoring, then rotating the outer sheath nut 2, wherein the inclined plane at the bottom of the outer sheath 8 approaches the inclined plane at the top of the metal sheet and tightly pushes open the metal sheet 11, and because the bottom of the rod body of the inner screw rod is provided with a cutting seam, the metal sheet at the outer part of the rod body is also deformed along with the cutting seam and separated from the rod body, so that the metal sheet is diffused outwards to a larger range, thereby forming an umbrella-shaped structure larger than the outer diameter of the outer sheath, and achieving the anchoring effect. When the anchoring structure is used in concrete or rock, a drill hole is adopted for installation, and the diameter of the drill hole is consistent with that of the outer sheath.
The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.
Claims (5)
1. The utility model provides an anchor structure of tape barb which characterized in that: the drill bit comprises an inner screw rod and an outer sheath sleeved outside the inner screw rod, wherein the outer sheath and the inner screw rod are respectively provided with an inner thread and an outer thread which are matched with each other, an outer sheath nut is arranged at the top of the outer sheath, a spear-shaped drill bit is arranged at the bottom of the inner screw rod, a metal sheet is connected to the periphery of the drill bit, a slit is formed in the joint of the metal sheet and the drill bit, a joint of the inner screw rod body and the drill bit is pre-opened with a cutting seam, an inclined plane which gradually rises from inside to outside is formed in the top of the metal sheet, and an inclined plane which is the same as the inclined plane at the top of the drill bit is formed in the bottom of the outer sheath.
2. The barbed anchoring structure according to claim 1, wherein: the cutting seams are streamline.
3. The barbed anchoring structure according to claim 1, wherein: the outer sheath has threads on an outer surface thereof.
4. The barbed anchoring structure according to claim 1 or 3, wherein: the outer sheath nut is provided with two opposite inner and outer linkage bolt holes, and through holes are formed in corresponding positions on the inner screw rod.
5. The barbed anchoring structure according to claim 1, wherein: and a through hole is formed in the top of the inner screw rod body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120645784.9U CN214945544U (en) | 2021-03-30 | 2021-03-30 | Anchoring structure with barbs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120645784.9U CN214945544U (en) | 2021-03-30 | 2021-03-30 | Anchoring structure with barbs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214945544U true CN214945544U (en) | 2021-11-30 |
Family
ID=79039840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120645784.9U Expired - Fee Related CN214945544U (en) | 2021-03-30 | 2021-03-30 | Anchoring structure with barbs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214945544U (en) |
-
2021
- 2021-03-30 CN CN202120645784.9U patent/CN214945544U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211130 |