CN108547289B - Three-jaw type fixing anchor - Google Patents
Three-jaw type fixing anchor Download PDFInfo
- Publication number
- CN108547289B CN108547289B CN201810404464.7A CN201810404464A CN108547289B CN 108547289 B CN108547289 B CN 108547289B CN 201810404464 A CN201810404464 A CN 201810404464A CN 108547289 B CN108547289 B CN 108547289B
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- China
- Prior art keywords
- anchor
- claw
- claw body
- fastening
- fastening cover
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- 210000000078 claw Anatomy 0.000 claims abstract description 48
- 238000007789 sealing Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000004873 anchoring Methods 0.000 abstract description 5
- 239000011435 rock Substances 0.000 description 7
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/008—Anchoring or tensioning means
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to the technical field of anchoring, in particular to a three-jaw type fixed anchor; the anchor head comprises an anchor head body, a fastening cover device and three groups of claw bodies, wherein an oil pipe seat and a claw body seat corresponding to the claw bodies are arranged on the anchor head body; one end of the claw body is connected with the claw body seat, the other end of the claw body is provided with a toothed clamping piece, and the claw body is also provided with a second through hole for inserting a second anchor rod; the fastening cover device comprises a fastening cover body and a tensioning rope corresponding to the claw body, one end of the tensioning rope is connected with the fastening cover body, the other end of the tensioning rope is fixedly connected with the claw body, and the fastening cover is also provided with a spring; through simple structure, can be very firm fixed, convenient to use can ensure that the anchor is successful.
Description
Technical Field
The invention relates to the technical field of anchoring, in particular to a three-jaw type fixing anchor.
Background
The anchoring technology is that one end of a novel tension member is fixed in a rock stratum or a soil layer of a side slope or a foundation; the fixed end of the novel tension member is called an anchoring end, and the other end of the novel tension member is connected with an engineering building and can bear the thrust applied to the building by soil pressure, water pressure or wind power, so that the anchoring force of the stratum is utilized to maintain stability.
At present, anchor heads commonly applied in hydraulic engineering, mines and the like are made of deformed steel bars, and the anchor heads are fixedly connected to the wall of a rock drill hole at the designed installation part after cement paste is poured; when the anchor head is installed on the top rock borehole wall, failure often occurs because cement slurry is not easy to fill; when the anchor head is used on a rock body with joint fracture development, the consolidation effect is not good due to slurry leakage, and the change of the hole diameter of a drill hole is caused by the stress adjustment of the rock body, so that the anchor head consolidated on the wall of the drill hole of the rock is disengaged.
Disclosure of Invention
The present invention aims to overcome the above-mentioned deficiencies of the prior art and to provide a three-jaw type anchor.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the anchor head body is provided with an oil pipe seat and a claw body seat corresponding to the claw body, the center of the anchor head body is provided with a first through hole for inserting a first anchor rod, and the first through hole is internally provided with a thread matched with the first anchor rod; one end of the claw body is connected with the claw body seat, the other end of the claw body is provided with a toothed clamping piece, and the claw body is also provided with a second through hole for inserting a second anchor rod; the fastening cover device comprises a fastening cover body and a fastening rope corresponding to the claw body, one end of the fastening rope is connected with the fastening cover body, the other end of the fastening rope is fixedly connected with the claw body, the fastening cover body is further provided with a spring, when the fastening cover body is pressed downwards, a buffering force is generated, the first anchor rod can be prevented from generating an instantaneous acting force on the fastening cover body, and an adjusting device for adjusting the length of the fastening rope is arranged at the joint of the claw body and the fastening rope.
The three-jaw type fixing anchor is characterized in that the anchor head body is further provided with a spring group, a sliding top block and a sliding piece.
The three-claw type fixing anchor is characterized in that two ends of the claw body are connected with the claw body seat and the toothed clamping piece through pins.
The three-jaw type fixing anchor is characterized in that the tensioning rope is a steel bar rope.
The invention relates to a three-jaw type fixing anchor, wherein an adjusting screw rod and a locking nut are arranged on the part, deviating from the ground, of an anchor head body.
The invention relates to a three-jaw type fixing anchor, wherein a sealing cap is arranged on the part, close to the ground, of an anchor head body, and a sealing rubber ring is arranged on the sealing cap.
The invention relates to a three-jaw type fixing anchor, wherein a connecting piece for connecting a transmission rod is further arranged on an anchor head body.
The three-jaw type fixing anchor is characterized in that an auxiliary oil pipe connecting seat is fixedly connected to the anchor head body.
The invention has the beneficial effects that: according to the three-jaw type fixing anchor, after a first anchor rod penetrates through a first through hole to be fixed on a wall surface, the three jaws are contracted by adding oil pressure, the three-jaw type fixing anchor is placed in a wall hole and is decompressed, three jaw bodies are expanded under the action of spring force and are firmly clamped on the wall hole, a second anchor rod penetrates through a second through hole of the jaw body to be fixed on the wall surface, and downward pressure is applied to the first anchor rod by a fastening cover body through the tension of a tensioning rope, so that the fixing anchor can be fixed very stably; through simple structure, can be very firm fixed, convenient to use can ensure that the anchor is successful.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only part of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive efforts according to the accompanying drawings:
FIG. 1 is a cross-sectional view of a three-jaw type tie-down anchor according to a preferred embodiment of the present invention;
FIG. 2 is a top view of the preferred embodiment of the present invention showing the three-jaw type tie-down anchor; and
FIG. 3 is a schematic structural view of a fastening cover body of a three-jaw type anchor according to a preferred embodiment of the present invention;
the device comprises an anchor head body 11, a first through hole 12, a claw body seat 13, a sealing cap 14, a sliding part 15, a spring set 16, a sliding top block 17, an adjusting screw 18, a locking nut 19, a claw body 21, a tooth-shaped clamping piece 22, a second through hole 23, a fastening cover body 31, a tensioning rope 32, a spring 33, an adjusting device 34, a connecting piece 41 and an oil pipe connecting seat 42.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements 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," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
A three-jaw type anchor according to a preferred embodiment of the present invention is shown in fig. 1-3, and comprises an anchor head body 11, a fastening cover device and three sets of jaw bodies 21, wherein the anchor head body 11 is provided with an oil pipe seat and jaw body 21 seats 13 corresponding to the jaw bodies 21, the center of the anchor head body 34 is provided with a first through hole 12 for inserting a first anchor rod, and the first through hole 12 is provided with a thread matching with the first anchor rod; one end of the claw body 21 is connected with the claw body 21 seat 13, the other end is provided with a dentate clamping piece 22, and the claw body 21 is also provided with a second through hole 23 for inserting a second anchor rod; the fastening cover device comprises a fastening cover body 31 and a fastening rope 32 corresponding to the claw body 21, one end of the fastening rope 32 is connected with the fastening cover body 31, the other end of the fastening rope is fixedly connected with the claw body 21, the fastening cover body 31 is further provided with a spring 33, when the fastening cover body 31 is pressed downwards through the spring 33, a buffering force is generated, and an instant acting force of the first anchor rod on the fastening cover body 31 can also be prevented; the oil pump in the oil pipe seat is pressurized, so that the claw body 21 on the anchor head body 11 is contracted and placed in the wall hole, the pressure is released, the three claw bodies 21 are opened under the action of spring force and are firmly clamped in the wall hole, the first through hole 12 is formed in the center of the anchor head body 11, the first anchor rod penetrates through the first through hole 12 to be fixed on the wall surface, then the first anchor rod penetrates through the tooth-shaped clamping piece 22 on the claw body 21 and the second anchor rod to penetrate through the second through hole 23 of the claw body 21 to be fixed on the wall surface, and the fastening cover body 31 is enabled to apply downward pressure to the first anchor rod through the tension of the tensioning rope 32, so that the fixing anchor can be fixed stably; through simple structure, can be very firm fixed, convenient to use can ensure that the anchor is successful.
As shown in fig. 1-2, the anchor head body 11 is further provided with a spring 33 group 16, a sliding top block 17 and a sliding piece 15; the claw body 21 contracts under the action of hydraulic pressure and simultaneously compresses the spring 33, and the spring 33 with proper elasticity can ensure that the spring 33 in the anchor head body 11 has enough tension after the hydraulic pressure is released, so that the toothed clamping piece 22 of the claw body 21 is embedded into rock.
As shown in fig. 1-2, two ends of the claw body 21 are connected with the claw body 21 seat 13 and the dentate clamping piece 22 through pins; is convenient for better adjustment and rotation.
As shown in fig. 1-3, the tension cord 32 is a rebar cord; the tensioning rope 32 can effectively play a downward tensile force and is not easy to break.
As shown in fig. 2, an adjusting device 34 for adjusting the length of the tension rope 32 is arranged at the connection position of the claw body 21 and the tension rope 32; be convenient for through taut rope 32 length to improve the pulling force that taut rope 32 provided to fastening lid body 31, effectual improvement taut rope 32's effect.
As shown in fig. 1, the part of the anchor head body 11 facing away from the ground is provided with an adjusting screw 18 and a locking nut 19; the fixing effect is improved conveniently again.
As shown in fig. 1, the anchor head body 11 is provided with a sealing cap 14 near the ground part, and a sealing rubber ring is arranged on the sealing cap 14; facilitating better sealing and fixing.
As shown in fig. 2, the anchor head body 11 is further provided with a connecting piece 41 for connecting the transmission rod; the measuring transmission rod can adapt to measuring transmission rods with different specifications.
As shown in fig. 2, the anchor head body 11 is also fixedly connected with an auxiliary oil pipe connecting seat 42; the anchor head can be installed in series as required, a plurality of anchor heads in one hole can be installed at the same time, and oil pipes can be saved.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (8)
1. A three-jaw type anchor, which is characterized in that: the anchor head comprises an anchor head body, a fastening cover device and three groups of claw bodies, wherein an oil pipe seat and a claw body seat corresponding to the claw body are arranged on the anchor head body; one end of the claw body is connected with the claw body seat, the other end of the claw body is provided with a toothed clamping piece, and the claw body is also provided with a second through hole for inserting a second anchor rod; the fastening cover device comprises a fastening cover body and a fastening rope corresponding to the claw body, one end of the fastening rope is connected with the fastening cover body, the other end of the fastening rope is fixedly connected with the claw body, the fastening cover body is further provided with a spring, when the fastening cover body is pressed downwards, a buffering force is generated, the first anchor rod can be prevented from generating an instant acting force on the fastening cover body, and an adjusting device for adjusting the length of the fastening rope is arranged at the joint of the claw body and the fastening rope.
2. The triple-jaw tie-down anchor of claim 1, wherein: and the anchor head body is also provided with a spring group, a sliding top block and a sliding piece.
3. The triple-jaw tie-down anchor of claim 1, wherein: the two ends of the claw body are connected with the claw body seat and the dentate clamping piece through pins.
4. The triple-jaw tie-down anchor of claim 1, wherein: the tensioning rope is a steel bar rope.
5. The triple-jaw tie-down anchor of claim 1, wherein: and the part of the anchor head body deviating from the ground is provided with an adjusting screw rod and a locking nut.
6. The triple-jaw tie-down anchor of claim 1, wherein: the anchor head body is provided with a sealing cap close to the ground, and a sealing rubber ring is arranged on the sealing cap.
7. The triple-jaw tie-down anchor of claim 1, wherein: the anchor head body is also provided with a connecting piece for connecting the transmission rod.
8. The triple-jaw tie-down anchor of claim 1, wherein: and the anchor head body is also fixedly connected with an auxiliary oil pipe connecting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810404464.7A CN108547289B (en) | 2018-04-28 | 2018-04-28 | Three-jaw type fixing anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810404464.7A CN108547289B (en) | 2018-04-28 | 2018-04-28 | Three-jaw type fixing anchor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108547289A CN108547289A (en) | 2018-09-18 |
| CN108547289B true CN108547289B (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810404464.7A Active CN108547289B (en) | 2018-04-28 | 2018-04-28 | Three-jaw type fixing anchor |
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| Country | Link |
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| CN (1) | CN108547289B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751067B (en) * | 2019-03-16 | 2020-10-23 | 安徽航睿电子科技有限公司 | Method for improving pre-pulling force of anchor rod |
| CN110629755A (en) * | 2019-10-22 | 2019-12-31 | 航天建筑设计研究院有限公司 | Recyclable anchoring device and green construction method thereof |
| CN113026595A (en) * | 2021-03-30 | 2021-06-25 | 北京国电成达电力工程有限公司 | Electric power construction safety warning device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03235812A (en) * | 1990-02-13 | 1991-10-21 | Kurosawa Kensetsu Kk | Underground earth removal anchor establishment method |
| CN2240546Y (en) * | 1995-10-13 | 1996-11-20 | 厉瑞祥 | Detachable loading head for anchor shaft |
| CN201531025U (en) * | 2009-10-29 | 2010-07-21 | 季良杰 | Three-jaw type hydraulic anchor head |
| CN106193063A (en) * | 2016-06-23 | 2016-12-07 | 衡水力能新材料工程有限公司 | A kind of semi-rigid guard system |
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2018
- 2018-04-28 CN CN201810404464.7A patent/CN108547289B/en active Active
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| CN108547289A (en) | 2018-09-18 |
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