CN211116065U - Expansion shell type anchoring head - Google Patents
Expansion shell type anchoring head Download PDFInfo
- Publication number
- CN211116065U CN211116065U CN201922116627.4U CN201922116627U CN211116065U CN 211116065 U CN211116065 U CN 211116065U CN 201922116627 U CN201922116627 U CN 201922116627U CN 211116065 U CN211116065 U CN 211116065U
- Authority
- CN
- China
- Prior art keywords
- shell
- expanding
- expansion
- inner wedge
- clamping piece
- 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.)
- Active
Links
Images
Landscapes
- Dowels (AREA)
Abstract
The utility model relates to a shell-expanding type anchoring head, a shell-expanding inner wedge and a piece-expanding component, wherein the piece-expanding component is arranged on the outer side surface of the shell-expanding inner wedge and can slide longitudinally relative to the shell-expanding inner wedge; the expansion piece assembly comprises a plurality of expansion shell clamping pieces, each expansion shell clamping piece is circumferentially arranged on the outer side surface of the expansion shell inner wedge, a butt joint part and a butt joint opening are formed at the end part, far away from the expansion shell inner wedge, of each expansion shell clamping piece, and the butt joint part of any expansion shell clamping piece is in butt joint fit with the butt joint opening of the other adjacent expansion shell clamping piece. The utility model provides a technical scheme is through each shell clamping piece that rises one end butt portion of shell inner wedge and the butt mouth looks butt cooperation of another adjacent shell clamping piece that rises to avoid respectively rising the shell clamping piece because of the crisscross current situation each appears in the extrusion that receives irregular anchor pore wall, have better anchor performance.
Description
Technical Field
The utility model relates to a geotechnical engineering anchor struts technical field, especially relates to a shell type anchor head rises.
Background
In the protection construction process of underground engineering, mine roadways, railway tunnels and side slopes, the stratum needs to be reinforced for preventing deformation, collapse and instability of ground survey, anchor rods with anchor heads are buried in the stratum during the adopted main measures, and the stratum is reinforced by utilizing the tension of the anchor rods and concrete grouting bodies integrated with the anchor rods, so that the stratum forms an integral structure, and the purpose of controlling the deformation of the stratum is achieved.
The existing shell-expanding type anchoring head adopts a method of propping the wedge body and the shell-expanding piece against the bottom of the anchoring hole when the shell-expanding piece is expanded, but the shell-expanding piece can slide along the inclined plane on the wedge body and also can be mutually staggered under the extrusion action of the wall of the irregular anchoring hole, so that the stability of the shell-expanding type anchoring head is poor, and the anchoring effect is poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel shell type anchor head that rises, this shell type anchor head that rises can prevent that the shell clamping piece that respectively rises in the shell inner wedge outside from appearing the phenomenon of staggering each other because of the atress difference, have better anchoring performance.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an expanding shell anchor head comprising: the expansion piece assembly is arranged on the outer side surface of the expansion shell inner wedge and can longitudinally slide relative to the expansion shell inner wedge; the expansion piece assembly comprises a plurality of expansion shell clamping pieces, each expansion shell clamping piece is circumferentially arranged on the outer side surface of the expansion shell inner wedge, a butt joint part and a butt joint opening are formed at the end part, far away from the expansion shell inner wedge, of each expansion shell clamping piece, and the butt joint part of any expansion shell clamping piece is in butt joint fit with the butt joint opening of the other adjacent expansion shell clamping piece.
Preferably, a plurality of arc-shaped teeth are formed on the outer side of the shell expansion clamping piece and can be abutted and tightly matched with the inner wall of the anchoring hole.
Preferably, a plurality of first inclined planes are formed on the outer side surface of the inner wedge of the expansion shell along the longitudinal direction, the first inclined planes are arranged at intervals, the number of the first inclined planes is the same as that of the clamping pieces of the expansion shell, and the clamping pieces of the expansion shell are in sliding fit with the first inclined planes.
Preferably, a second inclined surface is formed on the side surface of the expansion shell clamping piece facing the expansion shell inner wedge, and the second inclined surface is in sliding fit with the first inclined surface.
Preferably, a plurality of guide grooves are longitudinally formed in the outer side surface of the inner wedge of the expansion shell, and the expansion shell clamping piece can be in sliding fit with the first inclined surface along the guide grooves.
Preferably, an arc surface is formed on the side surface of the expansion shell clamping piece facing the expansion shell inner wedge, and the arc surface is connected with the second inclined surface.
Preferably, the inner wedge of the expanding shell is arranged in a conical shape.
Preferably, the inner wedge of the expanding shell is provided with a through hole, and the inner wedge of the expanding shell is in threaded connection with the anchor rod through the through hole.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the shell type anchor head that rises that provides among the above-mentioned technical scheme is through each shell clamping piece that rises one end butt portion of shell inner wedge and the butt mouth looks butt cooperation of another adjacent shell clamping piece that rises dorsad to avoid each shell clamping piece that rises to appear the current situation of crisscross each other because of the extrusion that receives irregular anchor pore wall, have better stability, have better anchor performance.
Drawings
Fig. 1 is a schematic structural diagram of an expanding-shell type anchoring head according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of the clip member shown in fig. 1.
Fig. 3 is a schematic structural view of the expanding-shell type anchor head shown in fig. 1 from another view angle.
Fig. 4 is a schematic structural view of the expanding-shell clip shown in fig. 3.
Fig. 5 is a schematic structural view of the inner wedge of the expanding shell shown in fig. 1.
Fig. 6 is a schematic structural view of another view angle of the inner wedge of the expanding shell shown in fig. 1.
Fig. 7 is a schematic view of the expansion shell clip shown in fig. 3 from another perspective.
100. An expanding-shell type anchoring head; 10. expanding the shell and wedging; 11. a through hole; 111. internal or external threads; 12. a first inclined plane; 13. a guide groove; 14. a limiting groove; 20. a clamp arm mechanism; 21. a clip member; 211. a first bent portion; 212. a first through hole; 213. a second through hole; 214. a second bent portion; 22. a first fixing member; 30. an expansion piece assembly; 31. a shell expansion clamping piece; 311. a third through hole; 312. a longitudinal groove; 313. an abutting portion; 314. abutting the interface; 315. arc-shaped teeth; 316. a second inclined plane; 317. and (4) cambered surface.
Detailed Description
The present invention will now be described in more detail with reference to the accompanying drawings, in which the description of the invention is given by way of illustration and not of limitation. The various embodiments may be combined with each other to form other embodiments not shown in the following description.
Referring to fig. 1, an embodiment of the present invention provides a novel expanding-shell type anchor head 100, in which the expanding-shell type anchor head 100 can avoid the situation that the anchor rod is difficult to construct due to the half way of being sent to the designated position being engaged with the surrounding rock, and has a better anchoring performance.
The expanding-shell anchor head 100 includes: the expansion shell inner wedge 10, the clamping arm mechanism 20 and the expansion piece assembly 30, wherein the expansion piece assembly 30 is circumferentially arranged on the outer side surface of the expansion shell inner wedge 10, and the expansion piece assembly 30 can longitudinally slide relative to the expansion shell inner wedge 10, so that the expansion piece assembly 30 gradually expands and tightly abuts against the side wall of an anchor hole (not shown) in the longitudinal sliding process; one end of the clamping arm mechanism 20 is fixedly connected with the expansion piece assembly 30, so that the clamping arm mechanism 20 and the expansion piece assembly 30 are integrally arranged; the other end of the clamping arm mechanism 20, which is opposite to the expansion piece assembly 30, can abut against the end of the expansion shell inner wedge 10, which is far away from the expansion piece assembly 30, and the side of the clamping arm mechanism 20 is circumferentially enclosed on the outer side of the expansion shell inner wedge 10.
It can be understood that a limiting station (not shown) for accommodating the inner expanding shell wedge 10 is formed between the clamping arm mechanism 20 and the expanding piece assembly 30, and the clamping arm mechanism 20 and the expanding piece assembly 30 cooperate to limit the inner expanding shell wedge 10, so as to prevent the expanding piece assembly 30 from being separated from the inner expanding shell wedge 10.
Wherein, the inner wedge 10 of the expansion shell is arranged in a conical shape, the expansion piece component 30 is circumferentially arranged at the narrow end (not shown) of the inner wedge 10 of the expansion shell and can longitudinally slide from the narrow end of the inner wedge 10 of the expansion shell to the wide end (not shown) of the inner wedge 10 of the expansion shell, and in the process that the expansion piece component 30 slides from the narrow end to the wide end, the expansion piece component 30 gradually expands and tightly abuts against the side wall of the anchor hole. In addition, the wide end of the inner wedge 10 of the expanding shell can abut against the clamping arm mechanism 20.
It can be understood that, when the expanding-shell type anchor head 100 is not anchored to the anchor hole (not shown), the expanding sheet assemblies 30 are distributed at the narrow end of the expanding-shell inner wedge 10 along the circumferential direction towards one end of the expanding-shell inner wedge 10; one end of the clamping arm mechanism 20 far away from the expansion piece component 30 is abutted against the end face of the wide end of the expansion shell inner wedge 10, and the other end is fixedly connected with the expansion piece component 30.
In addition, a through hole 11 is opened in the expanding case inner wedge 10, and the axial direction of the center axis of the through hole 11 is the same as the longitudinal direction of the expanding case inner wedge 10. In addition, a bolt (not shown) can extend into the through hole 11 and be screwed with the inner wedge 10 of the expanding shell.
It can be understood that an internal thread 111 is formed on the inner side wall of the through hole 11, and an external thread is formed on the end of the anchor rod, so that a technician can screw and cooperate the external thread on the anchor rod with the internal thread 111 at the through hole 11 to screw and connect the anchor rod with the inner expanding shell wedge 10 into an integrated structure; or, the inside wall in this through hole 11 department is formed with external screw thread 111, and the tip of stock is formed with the internal thread, and then, technical staff's accessible internal thread on the stock carries out the spiro union cooperation with the external screw thread 111 of through hole 11 department to with stock and the interior wedge 10 spiro union formula structure as an organic whole that rises.
The clamping arm mechanism 20 comprises a plurality of clamping arm members 21, and each clamping arm member 21 is arranged at intervals and connected with the expanding piece assembly 30, so that the clamping arm members 21 and the expanding piece assembly 30 are integrally arranged; in addition, the ends of the clip members 21 far away from the expansion piece assembly 30 are connected with each other so that the clip members 21 are integrally arranged, and the ends of the clip members 21 far away from the expansion piece assembly 30 can be abutted and matched with the side of the inner expansion shell wedge 10 back to the expansion piece assembly 30.
It can be understood that when the expanding-shell type anchor head 100 is not anchored to the anchor hole, the end surface of the wide end of the expanding-shell inner wedge 10 abuts against the end of the arm-clamping member 21 far away from the expanding sheet assembly 30; when a user drives the inner expanding shell wedge 10 to move towards a direction far away from the bottom of the anchor hole through the anchor rod, the wide part of the inner expanding shell wedge 10 is separated from the clamping arm member 21, and the inner expanding shell wedge 10 longitudinally penetrates into the inner expanding piece assembly 30 to expand the expanding piece assembly 30, so that the expanding piece assembly 30 is abutted and tightly matched with the side wall of the anchor hole.
Referring to fig. 2, a first bent portion 211 is formed at an end of each clip arm 21 away from the expanding piece assembly 30, the first bent portion 211 is radially disposed along an end surface (not shown) of the inner wedge 10 of the expanding shell, and the first bent portions 211 of the clip arms 21 are stacked and connected to each other to form an integrated structure. Namely: the first bent portion 211 is located at an end surface of a wide end of the inner expanding shell wedge 10, the first bent portion 211 is radially arranged along the end surface of the wide end of the inner expanding shell wedge 10, the first bent portions 211 of the arm clamping members 21 are overlapped with each other, and the overlapped position of each first bent portion 211 is located at a central axis of the through hole 11 in the inner expanding shell wedge 10.
It can be understood that the arm clamping pieces 21 are connected to each other by the first bent portions 211 to form an integrated structure, and are spaced from each other to enclose a limiting station forming a barrel shape, the inner expanding shell wedge 10 is disposed at the limiting station, and the end surface of the wide end of the inner expanding shell wedge 10 can be abutted and matched with the bottom of the limiting station formed by each first bent portion 211.
In addition, the clamping arm mechanism 20 further includes a first fixing member 22, the first bent portion 211 is provided with a first through hole 212, the first fixing member 22 can sequentially pass through the first through holes 212 provided on the first bent portions 211, and fixedly connect the first bent portions 211, so as to connect the clamping arm members 21 into an integrated structure.
Referring to fig. 3 and 4, the expanding piece assembly 30 includes a plurality of expanding shell clamping pieces 31, each expanding shell clamping piece 31 is installed on the outer side surface of the expanding shell inner wedge 10 along the circumferential direction, the number of the expanding shell clamping pieces 31 is the same as that of the clamping arm pieces 21, and the expanding shell clamping pieces 31 are connected with the clamping arm pieces 21 in a one-to-one correspondence manner. In addition, the end portions of the two adjacent expansion shell clamping pieces 31 far from the clamping arm mechanism 20 are mutually abutted and matched, so that the phenomenon that the expansion shell clamping pieces 31 are mutually staggered due to the extrusion action of the side walls of the irregular anchor holes is prevented.
The arm member 21 has a second through hole 213 at an end thereof close to the shell expansion clamping piece 31, the shell expansion clamping piece 31 has a third through hole 311, and the second through hole 213 is matched with the third through hole 311 in shape. A technician can align the second through hole 213 with the third through hole 311, and sequentially pass the second fixing member through the second through hole 213 and the third through hole 311, so that the second fixing member can fix the clip member 21 on the outer side surface of the shell expanding clip 31.
Wherein, the side of the shell expansion clamping piece 31 back to the shell expansion inner wedge 10 is formed with a longitudinal groove 312, the third through hole 311 is opened at the longitudinal groove 312, and the clamping arm piece 21 is in butt fit with the longitudinal groove 312, that is: the parts of the clip member 21 except the first bent portion 211 are disposed at the longitudinal grooves 312, so that the clip member 21 can be fixed and limited by the longitudinal grooves 312, and friction between the shell-expanding clip 31 and the clip member 21 can be prevented.
In addition, a second bent portion 214 is formed at an end of the clamping arm member 21 facing away from the first bent portion 211, the second bent portion 214 is located at a side of the second through hole 213 away from the first bent portion 211, and is bent towards a side facing away from the shell expansion clamping piece 31 to form a barb, so that in a process that the anchor rod is brought to the shell expansion inner wedge 10 to longitudinally move away from the bottom direction of the anchor hole, the second bent portion 214 can abut against a side wall of the anchor hole to prevent the shell expansion clamping piece 31 from longitudinally moving along with the shell expansion inner wedge 10, and anchoring capability can be improved.
Referring to fig. 5 to 7, an abutting portion 313 and an abutting opening 314 are formed at an end portion of each expansion shell clamping piece 31 far from the expansion shell inner wedge 10, and the abutting portion 313 of any expansion shell clamping piece 31 is in abutting fit with the abutting opening 314 of another adjacent expansion shell clamping piece 31, so that the expansion shell clamping pieces 31 are prevented from being staggered due to the extrusion action of the irregular anchor hole wall when the expansion shell type anchor head 100 is inserted into the bottom of the anchor hole; furthermore, the abutting cooperation between the abutting portion 313 and the abutting opening 314 of another adjacent expanding shell clamping piece 31 can avoid the deviation of the expanding shell clamping piece 31 caused by the mutual staggering of the expanding shell clamping pieces 31, so as to prevent the action direction of the anchoring force of the expanding shell clamping piece 31 and the wall of the anchoring hole from being seriously influenced by the deviation of the expanding shell clamping piece 31 in the expanding process, thereby effectively improving the structural stability of the expanding shell type anchoring head 100 and simultaneously improving the anchoring effect thereof.
In order to further improve the anchoring effect between the shell expansion clamping piece 31 and the wall of the anchor hole, a plurality of arc-shaped teeth 315 are formed on the outer side of the shell expansion clamping piece 31, the tooth mouth direction of the arc-shaped teeth 315 faces away from the bottom of the anchor hole, the anchoring force between the shell expansion clamping piece 31 and the wall of the anchor hole can be effectively improved, and the shell expansion clamping piece 31 is prevented from moving along with the longitudinal movement of the shell expansion inner wedge 10, namely, the shell expansion clamping piece 31 is prevented from moving along with the shell expansion inner wedge 10 towards the opening direction of the anchor hole.
Wherein, the outer side of this shell inner wedge 10 that rises vertically is formed with the first inclined plane 12 with the same quantity of shell splint 31 that rises to each first inclined plane 12 sets up each other at interval, and this first inclined plane 12 carries out sliding fit with shell splint 31 that rises, promptly: when the inner wedge 10 moves longitudinally towards the opening direction of the anchor hole, the clamping piece 31 is in a fixed state because of being abutted against the wall of the anchor hole, the first inclined surface 12 of the inner wedge 10 is attached to the clamping piece 31 and slides longitudinally relative to the clamping piece 31 to expand the clamping piece 31 outwards, so that the anchoring force of the clamping piece 31 on the wall of the anchor hole is improved, and the anchoring effect is improved. In addition, a second inclined surface 316 matched with the first inclined surface 12 is formed on the side surface of the expanding shell clamping sheet 31 facing the expanding shell inner wedge 10, and the second inclined surface 316 is in sliding fit with the first inclined surface 12; an arc face 317 is formed on the inner side of the expansion shell clip 31, and the arc face 317 is connected with the second inclined face 316.
Wherein, a plurality of guide grooves 13 are formed on the outer side surface of the inner wedge 10 of the expanding shell, and the guide grooves 13 are used for guiding and matching with the clamping sheets 31 of the expanding shell, namely: the expansion shell clamping piece 31 can be in sliding fit with the first inclined surface 12 along the guide groove 13. It can be understood that both sides of any one of the first inclined surfaces 12 are formed with guide grooves 13; when the inner expanding-shell wedge 10 moves toward the direction of the anchor eye opening, the inner expanding-shell wedge 10 can gradually slide to the inside of the expanding piece assembly 30 based on the guide groove 13 and expand each of the expanding-shell clamping pieces 31.
In addition, a limiting groove 14 is further formed in the outer side surface of the inner expanding shell wedge 10, the limiting groove 14 is connected with the first inclined surface 12, and the limiting groove 14 is located at the wide end of the inner expanding shell wedge 10. The clipping arm mechanism 20 and the limiting groove 14 are matched in a limiting manner, so that the clipping arm mechanism 20 can longitudinally slide along the limiting groove 14, namely: the part of the arm clamping member 21 is disposed in the limiting groove 14, and the inner shell expanding wedge 10 is based on the limiting cooperation between the limiting groove 14 and the arm clamping member 21, so that the inner shell expanding wedge 10 can slide in the length direction of the arm clamping member 21, and when the wide end of the inner shell expanding wedge 10 slides to the side of the shell expanding clamping piece 31 close to the first bending portion 211, the shell expanding clamping piece 31 abuts against the limiting groove 14, so as to prevent the inner shell expanding wedge 10 from separating from the arm clamping member 21 and the shell expanding clamping piece 31.
The working principle of the expanding-shell type anchor head 100 provided in the above embodiments can be detailed as follows:
a technician connects the anchor rod with the expansion shell type anchoring head 100 in a screw joint mode to form an integrated structure; the shell-expanding type anchoring head 100 is conveyed into the anchoring hole, the shell-expanding clamping piece 31 and the second bending part 214 are attached to the inner wall of the anchoring hole, and the first bending part 211 is tightly abutted to the bottom of the anchoring hole; the technician pulls the anchor rod to move towards the direction of the anchor hole opening, and drives the inner expanding shell wedge 10 to move towards the direction of the anchor hole opening, the inner expanding shell wedge 10 longitudinally moves to the inside of the expanding piece assembly 30 based on the sliding fit action of the first inclined surface 12 and the second inclined surface 316, and each expanding shell clamping piece 31 is expanded outwards, so that the expanding shell clamping piece 31 abuts against the side wall of the anchor hole, and the purpose that the expanding shell type anchoring head 100 is anchored at the anchor hole is achieved.
In the anchor head 100 with the expanding shell provided in the above embodiment, the clamping arms 20 are used to fixedly connect the expanding shell clamping pieces 31, so as to prevent the expanding shell clamping pieces 31 from falling off in the anchoring process; still through each shell clamping piece 31 that rises mutual butt cooperation of the one end of arm clamping mechanism 20 dorsad to each shell clamping piece 31 that rises is avoided appearing the current situation of crisscross each other because of the extrusion that receives irregular anchor pore wall, has better stability, has better anchoring performance.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (8)
1. An expanding shell anchor head, comprising: the expansion shell inner wedge (10) and the expansion piece assembly (30), wherein the expansion piece assembly (30) is arranged on the outer side surface of the expansion shell inner wedge (10) and can longitudinally slide relative to the expansion shell inner wedge (10); the expansion piece assembly (30) comprises a plurality of expansion shell clamping pieces (31), each expansion shell clamping piece (31) is circumferentially arranged on the outer side surface of the expansion shell inner wedge (10), a butting part (313) and a butting opening (314) are formed at the end part, far away from the expansion shell inner wedge (10), of each expansion shell clamping piece (31), and any butting part (313) of each expansion shell clamping piece (31) is in butt joint fit with the butting opening (314) of the other adjacent expansion shell clamping piece (31).
2. The expanding-shell type anchor head as claimed in claim 1, wherein a plurality of arc-shaped teeth (315) are formed on the outer side of the expanding-shell clamping piece (31), and the arc-shaped teeth (315) can be abutted against the inner wall of the anchor hole for tight fit.
3. The expanding-shell type anchor head as claimed in claim 1, wherein the outer side surface of the expanding-shell inner wedge (10) is longitudinally formed with a plurality of first inclined surfaces (12), the first inclined surfaces (12) are arranged at intervals, the number of the first inclined surfaces (12) is the same as that of the expanding-shell clamping pieces (31), and the expanding-shell clamping pieces (31) are in sliding fit with the first inclined surfaces (12).
4. The expanding shell anchor head according to claim 3, wherein the side of the expanding shell clip (31) facing the expanding shell inner wedge (10) is formed with a second inclined surface (316), and the second inclined surface (316) is in sliding fit with the first inclined surface (12).
5. The expanding-shell type anchoring head as claimed in claim 3, wherein the outer side surface of the expanding-shell inner wedge (10) is provided with a plurality of guide grooves (13) along the longitudinal direction, and the expanding-shell clamping piece (31) can be in sliding fit with the first inclined surface (12) along the guide grooves (13).
6. The expanding shell anchor head as claimed in claim 4, wherein the side of the expanding shell clip (31) facing the expanding shell inner wedge (10) is formed with an arc surface (317), and the arc surface (317) is engaged with the second slope (316).
7. An expanding shell anchor head according to claim 1, characterised in that the wedge (10) in the expanding shell is conically arranged.
8. The expanding-shell type anchor head as claimed in claim 1, wherein the expanding-shell inner wedge (10) is provided with a through hole (11), and the expanding-shell inner wedge (10) is screwed with the anchor rod through the through hole (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922116627.4U CN211116065U (en) | 2019-11-29 | 2019-11-29 | Expansion shell type anchoring head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922116627.4U CN211116065U (en) | 2019-11-29 | 2019-11-29 | Expansion shell type anchoring head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211116065U true CN211116065U (en) | 2020-07-28 |
Family
ID=71695723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922116627.4U Active CN211116065U (en) | 2019-11-29 | 2019-11-29 | Expansion shell type anchoring head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211116065U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761821A (en) * | 2019-11-29 | 2020-02-07 | 浙江聚能岩土锚固研究有限公司 | Expansion shell type anchoring head |
-
2019
- 2019-11-29 CN CN201922116627.4U patent/CN211116065U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761821A (en) * | 2019-11-29 | 2020-02-07 | 浙江聚能岩土锚固研究有限公司 | Expansion shell type anchoring head |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110621848B (en) | Friction rock anchor rod | |
| CN109184767A (en) | Tension intumescent hollow grouting anchor structure | |
| CN107620603B (en) | Novel grouting anchor rod with steel loop bar | |
| CN106460511A (en) | Friction bolt | |
| KR101359488B1 (en) | Micropile including radially extendable head unit for maximization of supporting force and constructing method of micropile using the same | |
| CN211116065U (en) | Expansion shell type anchoring head | |
| CN110761821A (en) | Expansion shell type anchoring head | |
| CN211174164U (en) | Anchor rod expansion shell head | |
| CN110043301A (en) | A kind of ultimate soft rock anchor structure and construction method | |
| CN110805450B (en) | Segment structure with combined mortise-tenon joint and female-head locking joint connecting assembly | |
| CN209457957U (en) | A kind of New Anchor Cable anchorage | |
| CN212836849U (en) | Planting rib anchoring structure | |
| KR20130029906A (en) | An expanding device of frictional force | |
| CN112963188A (en) | Assembly type precession grouting anchor rod structure and using method thereof | |
| CN110805463A (en) | Anchor rod expansion shell head | |
| CN218407488U (en) | Wedge seam type anchor rod | |
| CN214497500U (en) | High-strength anchor rod supporting structure of foundation pit | |
| CN115450676A (en) | Anchor rod assembly with energy absorption function | |
| CN212772328U (en) | Hollow barb anchor rod | |
| CN212104063U (en) | Grouting type double-anchor-head anchor rod | |
| KR101547320B1 (en) | Structure of Permanent Anchor | |
| KR102111691B1 (en) | Composite underground anchor supported by the entire cross section | |
| KR20150035122A (en) | Drill Root Pile And Construction Method Thereof | |
| RU204848U1 (en) | TUBULAR ANCHOR | |
| KR101017412B1 (en) | Permanent anchor of friction bearing pressure type and constructing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |