CN106567331A - Adjustable wire stay rope anchor - Google Patents
Adjustable wire stay rope anchor Download PDFInfo
- Publication number
- CN106567331A CN106567331A CN201610903578.7A CN201610903578A CN106567331A CN 106567331 A CN106567331 A CN 106567331A CN 201610903578 A CN201610903578 A CN 201610903578A CN 106567331 A CN106567331 A CN 106567331A
- Authority
- CN
- China
- Prior art keywords
- self
- centering locking
- swivel nut
- locking fixture
- tapered sleeve
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
- E04C5/12—Anchoring devices
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to an adjustable wire stay rope anchor. The anchor is composed of a first self-centering locking jig, a second self-centering locking jig, a compression spring and a plane bearing, wherein the first self-centering locking jig is provided with a connecting base, the middle part of one end of the connecting base is provided with a cylindrical boss which extends axially, the boss is internally provided with a first conical clamping jaw formed by 3-5 claws, a tension thread sleeve sleeves on the peripheral surface of the boss, the second self-centering locking jig is provided with a taper sleeve, the taper sleeve is internally provided with a second conical clamping jaw formed by 3-5 claws, and a hollow bolt sequentially along the axis, the second self-centering locking jig is positioned outside the head of the tension thread sleeve, the plane bearing is positioned between the tension thread sleeve and the taper sleeve, and the compression spring is arranged in the inner hole in the tension thread sleeve. According to the anchor, not only can wire stay ropes be prevented from loosening, but also the tension of the wire stay ropes can be fine-tuned.
Description
Technical field
The present invention relates to a kind of structural elements of building, and in particular to the anchoring device of wire digging line.
Background technology
Anchorage is the common component in wire digging line two, the anchor ring (including single anchor ring and group's anchor ring) of its basic structure and with
Matching cone-shaped clip composition.In order to avoid cone-shaped clip loosens, utility model patent of the Authorization Notice No. for CN211543Y
Application has carried out following improvement to which：A parallel pressing plate is set up on the end face of anchor slab (equivalent to anchor ring), is worn on the pressing plate
Hollow bolt is provided with, the rear end (one end being relatively large in diameter) of cone-shaped clip is held out against by hollow bolt, and then realize preventing taper
The purpose that intermediate plate loosens.Authorization Notice No. similarly discloses above-mentioned side for the utility application of CN204174840U
Case.Although the scheme described in above-mentioned patent application can be locked by cone-shaped clip, it is to avoid cone-shaped clip loosens, if there is certain
The tension force of a piece wire digging line is not enough, results in the decline of cable wire overall performance.And the tension force of the wire digging line will be supplied, not only to
Large-scale pulling apparatus (such as hoist engine) are employed, but also there is the difficulty being connected with pulling apparatus.
The application for a patent for invention of Publication No. CN102926507A discloses a kind of internal-extrusion type dragline anchorage, by the patent
The embodiment of application combines that accompanying drawing 2-5 is visible in the lump, and although the scheme disclosed in the patent application is a kind of monolithic extruded formula steel
Twisted wire anchorage, but its locking principle is still identical with above-mentioned utility model patent, i.e., with locking plug screw (effect and hollow bolt phase
The intermediate plate of extruding anchor cup (also corresponding to anchor ring) inner conical is promoted to clamp steel strand wires together)), therefore the application for a patent for invention is also same
There is the same deficiency of above-mentioned utility model patent in sample.
The content of the invention
The technical problem to be solved is to provide a kind of adjustable steel wire dragline anchorage, and the anchorage can not only be prevented
Wire digging line is released, and the tension force of wire digging line can be finely adjusted.
The present invention solves the technical scheme of above-mentioned technical problem：
A kind of adjustable steel wire dragline anchorage, the anchorage by the first self-centering locking fixture, the second self-centering locking fixture,
Compression spring and plane bearing composition, wherein,
The first described self-centering locking fixture has a connecting seat, is provided with axially extending circle in the middle part of the connecting seat one end
Cylindrical end tangs, the internal of the boss are provided with the first taper jaw being made up of 3-5 claw pieces along axial line, and outer peripheral face is arranged with to be opened
Tight swivel nut；Wherein, the microcephaly of first tapered clamp points to connecting seat, and the outer peripheral face of the tensioning swivel nut is regular hexagon；
The second described self-centering locking fixture has a tapered sleeve, and the internal of the tapered sleeve is sequentially provided with by 3-5 lobes along axis
The second taper jaw and hollow bolt of calvus composition, wherein, the head of described hollow bolt is big with the second taper jaw
Head is relative, and the outer peripheral face of the tapered sleeve is regular hexagon；
The second self-centering locking fixture be located at it is described tensioning swivel nut head outside, and the second taper jaw microcephaly with
The sensing of the first taper jaw microcephaly is consistent；Described plane bearing is located between the tensioning swivel nut and tapered sleeve, described pressure
Contracting spring is located in the endoporus of tensioning swivel nut；When compressed bullet between the calvus of wire digging line to be anchored by the first taper jaw
After passing between the calvus of the centre bore and the second taper jaw of spring and plane bearing, under wire digging line tension force effect, institute
State compression spring one is acted on the first taper jaw, and other end is acted on tapered sleeve.
It is in order to simplify structure, cost-effective, and the globality of the anchorage is improved, the plane bearing described in above-mentioned anchorage
It is made up of ball-retainer component and the ring raceway being respectively provided on the tensioning swivel nut end face relative with tapered sleeve, wherein described
Ring raceway match with the ball in ball-retainer component.
Wire digging line of the present invention can be steel wire rope, or steel hinge line.
The operation principle of anchorage of the present invention is as described below：
The first self-centering locking fixture is fixed to into anchoring body (e.g., the anchoring used by building, building foundation or group's anchor
Plate etc.) on after, just by wire digging line from passing between the calvus of the first taper jaw of the first self-centering locking fixture, and successively
(wire digging line is also from the of the second self-centering locking fixture to put compression spring, plane bearing and the second self-centering locking fixture
Pass between the calvus of two tapered clamp pawls), then wire digging line is pulled using pulling apparatus (such as hoist engine).When wire digging line
After tension force reaches preset value, the second self-centering locking fixture is just moved forward, while adjust turning tensioning swivel nut so that plane axis
Hold and be clamped tightly between the tensioning swivel nut and tapered sleeve, and compression spring is compressed, the tension force produced by which promotes first to bore
Wire digging line is clamped by the reach of clevis pawl；Finally, turn described hollow bolt wire digging line is clipped and blocked.Work as institute
When the tension force of the wire digging line stated is not enough or certain reason causes its tension force to decline, by turning tensioning swivel nut, second is driven to make by oneself
Heart locking fixture pulls wire digging line so as to reach default tension force.During tensioning swivel nut is turned, even if rubbing at the beginning
Wiping power may drive the second self-centering locking to rotate, but due to the synergy of compression spring and the first taper jaw, first
Before self-centering locking fixture, the active section of wire digging line still will not be twisted, i.e., therefore will not change the characteristic ginseng of wire digging line
Number.
Adjustable steel wire dragline anchorage of the present invention is had the advantages that compared with prior art：
1st, can not only prevent wire digging line from releasing, and the tension force of wire digging line can be finely adjusted.
2nd, adaptability is good, can be not only used for single anchor, can be used for group anchor again.
3rd, tension force fine setting is convenient, it is not necessary to employ large-scale pulling apparatus.
Description of the drawings
Structural representation of Fig. 1～5 for a specific embodiment of adjustable steel wire dragline anchorage of the present invention, its
In, Fig. 1 is front view (dotted line represents wire digging line to be anchored in figure), and Fig. 2 is upward view, and Fig. 3 is A-A sections of Fig. 1
Figure, B-B profiles of the Fig. 4 for Fig. 1, C-C sectional views of Fig. 5 Fig. 1.
Fig. 6 and Tu are that adjustable steel wire dragline anchorage shown in Fig. 1～5 shows for a kind of concrete structure of group's anchor anchor
It is intended to, wherein, Fig. 6 is front view, and Fig. 7 is left view.
Specific embodiment
Referring to Fig. 1～5, the adjustable steel wire dragline anchorage described in this example is made by oneself by the first self-centering locking fixture, second
Heart locking fixture, compression spring 1 and plane bearing 2 are constituted.
Referring to Fig. 1～3, the first described self-centering locking fixture has a connecting seat 3, and the edge of the connecting seat 3 is provided with peace
Dress hole 12, is provided with axially extending cylindrical boss 4 in the middle part of lower end, the internal of the boss 4 is provided with the first taper hole along axial line
5, the first taper jaw 6 being made up of 3 claw pieces is provided with the taper hole, the outer peripheral face of the boss 4 is arranged with tensioning swivel nut 7,
Therebetween it is threadedly coupled；Wherein, the microcephaly of first tapered clamp 6 points to connecting seat 3, the outer peripheral face of the tensioning swivel nut 7
For regular hexagon.
Referring to Fig. 1,2 and 4, the second described self-centering locking fixture has a tapered sleeve 8, the tapered sleeve 8 it is internal along axis
It is sequentially provided with one section of second taper hole 9 and one section of screwed hole；Wherein, the second taper being made up of 3 claw pieces is provided with the second taper hole 9
Jaw 10, is provided with hollow bolt 11 in described screwed hole, the major part phase of the head of hollow bolt 11 and the second taper jaw 10
Right, the outer peripheral face of the tapered sleeve 8 is regular hexagon.
Referring to Fig. 1～5, the second self-centering locking fixture is located at the outside of tensioning 7 head of swivel nut, and the second tapered clamp
The microcephaly of pawl 10 is consistent with the sensing of 6 microcephaly of the first taper jaw；Described plane bearing is located at the tensioning swivel nut 7 and tapered sleeve
Between 8, described compression spring 1 is located in the endoporus of tensioning swivel nut 7.When wire digging line 13 to be anchored is by the first taper jaw
After passing between the calvus of the centre bore and the second taper jaw 10 of compressed spring 1 and plane bearing 2 between 6 calvus,
Under 13 tension force effect of wire digging line to be anchored, of the compression spring 1 is acted on the first taper jaw 6, another
Head is acted on tapered sleeve 8.
Referring to Fig. 1 and Fig. 5, the plane bearing 2 described in this example is by ball-retainer component 2-1 and is respectively provided at tensioning
Ring raceway on the end face relative with tapered sleeve 8 of swivel nut 7 is constituted, wherein described ring raceway and ball-retainer component 2-
Ball in 1 matches.
Adjustable steel wire dragline anchorage of the present invention can be used for single anchor, can be used for group anchor again, below in conjunction with accompanying drawing letter
A kind of wire digging line group anchor device for group's anchor is described, the concrete structure of the device is as follows.
Referring to Fig. 6 and Fig. 7 and with reference to Fig. 1～5, the wire digging line group anchor device includes anchor slab 15, in the anchor slab 15
Portion's 13 through holes for wearing wire digging line of weary cloth, the left head of each through hole fix an institute of the present invention by screw (omitting in figure) respectively
The adjustable steel wire dragline anchorage 14 (as shown in Fig. 1～5) stated, in the adjustable steel wire dragline anchorage 14 first taper hole 5 with wear
If the through hole of wire digging line is with respect to insertion.Each wire digging line 13 is bored by the through hole Jing first that wire digging line is worn on anchor slab 15
Wear between the calvus of clevis pawl 6, between the calvus of the centre bore and the second taper jaw 10 of compression spring 1 and plane bearing 2
Go out.
Referring to Fig. 6 and Fig. 7 and with reference to Fig. 1～5, as adjustable steel wire guy anchor 14 of the present invention is in described plane
When being divided into the first independent self-centering locking fixture and the second self-centering locking fixture at bearing 2, therefore installing first by first from
Stator locking fixture is screwed on anchor slab 15, then wire digging line 13 is worn the through hole of wire digging line from anchor slab 15
And first self-centering locking fixture the first taper jaw 6 calvus between pass, then put compression spring 1, plane axis successively
Hold 2 ball-retainer component 2-1 and the second self-centering locking fixture (wire digging line 13 is also from the second self-centering locking fixture
The second taper jaw 10 calvus between pass)；Then, wire digging line 13 is pulled with hoist engine, when opening for wire digging line 13
After power reaches preset value, the second self-centering locking fixture is just moved forward, while adjust turning tensioning swivel nut 7 so that plane axis
Hold 2 ball-retainer component 2-1 to be clamped tightly between the tensioning swivel nut 7 and tapered sleeve 8, and compression spring 1 compressed,
Tension force produced by which promotes the first taper jaw 6 to move forward and clamps wire digging line 13；Finally, turn described hollow bolt 11
Wire digging line 13 is clipped and blocked.
Referring to Fig. 6 and Fig. 7 and with reference to Fig. 1～5, when the tension force deficiency for having a certain wire digging line 13 in 13 wire digging lines
When, the second self-centering locking fixture drawing wire digging line 13 is driven by turning tensioning swivel nut 7 so as to reach default tension force,
And then ensure that the tension force of each wire digging line 13 is equal.
The other structures of above-mentioned wire digging line group anchor device are prior art, can refer to Authorization Notice No. and are
The description of the utility application of CN204174840U is implemented.
Claims (2)
1. a kind of adjustable steel wire dragline anchorage, the anchorage is by the first self-centering locking fixture, the second self-centering locking fixture, pressure
Contracting spring and plane bearing composition, wherein,
The first described self-centering locking fixture has a connecting seat, is provided with axially extending cylinder in the middle part of the connecting seat one end
Boss, the internal of the boss are provided with the first taper jaw being made up of 3-5 claw pieces along axial line, and outer peripheral face is arranged with tensioning spiral shell
Set；Wherein, the microcephaly of first tapered clamp points to connecting seat, and the outer peripheral face of the tensioning swivel nut is regular hexagon；
The second described self-centering locking fixture has a tapered sleeve, and the internal of the tapered sleeve is sequentially provided with by 3-5 claw pieces along axis
The second taper jaw and hollow bolt of composition, wherein, the head of described hollow bolt and the major part phase of the second taper jaw
Right, the outer peripheral face of the tapered sleeve is regular hexagon；
The second self-centering locking fixture is located at the outside of the tensioning swivel nut head, and the second taper jaw microcephaly and first
The sensing of taper jaw microcephaly is consistent；Described plane bearing is located between the tensioning swivel nut and tapered sleeve, described compression bullet
Spring is located in the endoporus of tensioning swivel nut；When between the calvus of wire digging line to be anchored by the first taper jaw compressed spring with
After passing between the calvus of the centre bore of plane bearing and the second taper jaw, under wire digging line tension force effect, the pressure
One of contracting spring is acted on the first taper jaw, and other end is acted on tapered sleeve.
2. a kind of adjustable steel wire dragline anchorage according to claim 1, it is characterised in that described plane bearing is by rolling
Pearl-retainer component and the ring raceway being respectively provided on the tensioning swivel nut end face relative with tapered sleeve are constituted, wherein described ring
Shape raceway is matched with the ball in ball-retainer component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610903578.7A CN106567331B (en) | 2016-10-17 | 2016-10-17 | A kind of adjustable steel wire dragline anchorage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610903578.7A CN106567331B (en) | 2016-10-17 | 2016-10-17 | A kind of adjustable steel wire dragline anchorage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106567331A true CN106567331A (en) | 2017-04-19 |
| CN106567331B CN106567331B (en) | 2018-04-17 |
Family
ID=58532052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610903578.7A Active CN106567331B (en) | 2016-10-17 | 2016-10-17 | A kind of adjustable steel wire dragline anchorage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106567331B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107225200A (en) * | 2017-07-21 | 2017-10-03 | 河北建筑工程学院 | A kind of hollow delivery type automatic shredding mechanism |
| CN110468711A (en) * | 2019-07-16 | 2019-11-19 | 武汉希萌科技有限公司 | A kind of tool anchor device of adjustable hole location |
| CN110485457A (en) * | 2019-09-06 | 2019-11-22 | 柳州欧维姆机械股份有限公司 | A kind of screw thread rod iron and presstressed reinforcing steel connector and its construction method for connection |
| CN110804941A (en) * | 2019-11-20 | 2020-02-18 | 佛山科学技术学院 | Stay cable stretching anchoring anti-retraction device |
| CN112617627A (en) * | 2020-12-24 | 2021-04-09 | 安徽旭众智能科技有限公司 | Multilayer dish oven that is heated evenly |
| CN113415381A (en) * | 2021-06-15 | 2021-09-21 | 巢湖群力船用锚链有限公司 | Novel dual fail-safe is broken out for lamp buoy tether based on internet of things |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2235468Y (en) * | 1995-12-18 | 1996-09-18 | 吕文炎 | Pier protective device with anchoring and clamping device |
| JP2002227343A (en) * | 2001-02-02 | 2002-08-14 | Ps Corp | Engaging device of prestressing bar, connecting device and anchoring deice therefor |
| JP2005048406A (en) * | 2003-07-31 | 2005-02-24 | Kyokuto Kogen Concrete Shinko Kk | Tendon anchorage device |
| CN201605077U (en) * | 2009-12-31 | 2010-10-13 | 平煤建工集团有限公司 | Super-strong tension device of stable mine rope |
| CN102359231A (en) * | 2011-08-05 | 2012-02-22 | 建研科技股份有限公司 | Heat treatment high-yield-ratio steel bar pre-tensioning clamp and using method thereof |
| CN103343593A (en) * | 2013-07-25 | 2013-10-09 | 长沙理工大学 | Prestressed-tendon anchor with high accuracy and free adjustment and control functions |
| CN204266120U (en) * | 2014-10-24 | 2015-04-15 | 江阴法尔胜住电新材料有限公司 | Guy of twisted steel cable single tendon stretch anchoring converter |
| CN204738293U (en) * | 2015-06-04 | 2015-11-04 | 江苏山海建设工程有限公司 | Prestressing force concrete side stake tip morse taper lock solid cover quick -connect machanism |
-
2016
- 2016-10-17 CN CN201610903578.7A patent/CN106567331B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2235468Y (en) * | 1995-12-18 | 1996-09-18 | 吕文炎 | Pier protective device with anchoring and clamping device |
| JP2002227343A (en) * | 2001-02-02 | 2002-08-14 | Ps Corp | Engaging device of prestressing bar, connecting device and anchoring deice therefor |
| JP2005048406A (en) * | 2003-07-31 | 2005-02-24 | Kyokuto Kogen Concrete Shinko Kk | Tendon anchorage device |
| CN201605077U (en) * | 2009-12-31 | 2010-10-13 | 平煤建工集团有限公司 | Super-strong tension device of stable mine rope |
| CN102359231A (en) * | 2011-08-05 | 2012-02-22 | 建研科技股份有限公司 | Heat treatment high-yield-ratio steel bar pre-tensioning clamp and using method thereof |
| CN103343593A (en) * | 2013-07-25 | 2013-10-09 | 长沙理工大学 | Prestressed-tendon anchor with high accuracy and free adjustment and control functions |
| CN204266120U (en) * | 2014-10-24 | 2015-04-15 | 江阴法尔胜住电新材料有限公司 | Guy of twisted steel cable single tendon stretch anchoring converter |
| CN204738293U (en) * | 2015-06-04 | 2015-11-04 | 江苏山海建设工程有限公司 | Prestressing force concrete side stake tip morse taper lock solid cover quick -connect machanism |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107225200A (en) * | 2017-07-21 | 2017-10-03 | 河北建筑工程学院 | A kind of hollow delivery type automatic shredding mechanism |
| CN110468711A (en) * | 2019-07-16 | 2019-11-19 | 武汉希萌科技有限公司 | A kind of tool anchor device of adjustable hole location |
| CN110485457A (en) * | 2019-09-06 | 2019-11-22 | 柳州欧维姆机械股份有限公司 | A kind of screw thread rod iron and presstressed reinforcing steel connector and its construction method for connection |
| CN110804941A (en) * | 2019-11-20 | 2020-02-18 | 佛山科学技术学院 | Stay cable stretching anchoring anti-retraction device |
| CN112617627A (en) * | 2020-12-24 | 2021-04-09 | 安徽旭众智能科技有限公司 | Multilayer dish oven that is heated evenly |
| CN113415381A (en) * | 2021-06-15 | 2021-09-21 | 巢湖群力船用锚链有限公司 | Novel dual fail-safe is broken out for lamp buoy tether based on internet of things |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106567331B (en) | 2018-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106567331B (en) | A kind of adjustable steel wire dragline anchorage | |
| US8215886B2 (en) | Coupler bolt termination system | |
| AU687929B2 (en) | A rock anchor assembly | |
| WO2015083214A1 (en) | Rope end-fastening method, rope with end fastener, and end fitting for use in rope end-fastening method | |
| JP2005522641A5 (en) | ||
| JP2017523355A (en) | High strength fixing device | |
| CN1682037A (en) | Pull type swage fasteners with removable mandrel | |
| CN106192768B (en) | A kind of pressing device and steel strand prestress tensioning system | |
| CN209509532U (en) | A kind of self-locking anchorage of compressor wire tensioning | |
| CN111636301B (en) | Low-retraction secondary tensioning anchorage device capable of reducing prestress loss and tensioning method | |
| CN210830087U (en) | Pull rod nut component with high fatigue performance | |
| CN210767891U (en) | Post-tensioned prestressing corrugated pipe internal bundling device | |
| CN103264125B (en) | Tool for manufacturing stay wire | |
| CN113565269B (en) | Clamping piece thread composite steel bar connecting joint | |
| CN209292897U (en) | Fining twisted steel anchorage spanner and concrete continuous beam pre-stress stretching device | |
| CN208815422U (en) | A kind of cast-in-place floorings many places steel strand wires penetrating device simultaneously | |
| CN208803374U (en) | A kind of low retracting secondary stretch-draw anchorage | |
| CN204492012U (en) | A kind of bar connecting device | |
| CN113374177A (en) | Anchor device | |
| JPWO2020058777A5 (en) | ||
| CN211648729U (en) | Novel fastener | |
| CN201288734Y (en) | Connecting driftbolt of structural member | |
| CN209760322U (en) | Adjustable wire connector | |
| CN109629565A (en) | Rapid reinforcement geotechnique threaded anchor rod and its application method | |
| CN216446346U (en) | Pressing plate monofilament reinforcing device of steel strand clamping piece anchorage device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |