CN109989975B - Expansion screw sleeve for being installed on building wall - Google Patents
Expansion screw sleeve for being installed on building wall Download PDFInfo
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- CN109989975B CN109989975B CN201910241737.5A CN201910241737A CN109989975B CN 109989975 B CN109989975 B CN 109989975B CN 201910241737 A CN201910241737 A CN 201910241737A CN 109989975 B CN109989975 B CN 109989975B
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- locking block
- screw sleeve
- screw
- sleeve
- expansion
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- 238000004873 anchoring Methods 0.000 claims abstract description 23
- 238000003801 milling Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
- F16B13/063—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander
- F16B13/065—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting the screw, nail or the like
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
- Dowels (AREA)
Abstract
The invention discloses an expansion threaded sleeve for being installed on a building wall, which comprises a threaded sleeve, a jacking plate and a locking block, wherein an anchoring screw hole is formed in the shaft center of the threaded sleeve, a limiting disc is arranged at the outer end head of the threaded sleeve, at least two locking block placing openings are uniformly milled on the annular surface of the inner end part of the screw sleeve in a surrounding manner, the locking block placing openings are in a sickle shape, the bottom surface of each locking block placing opening is a wedge-shaped surface, the wedge-shaped surface inclines from the inner end to the outer end of the screw sleeve, each locking block placing opening is internally provided with a locking block which is arranged in the locking block placing opening and is matched with the screw sleeve to form a cylindrical structure, the cambered surface at the inner end of the locking block is provided with a groove, the jacking plate is arranged at the inner end of the screw sleeve, the jacking plate is provided with a hanging and buckling hole corresponding to the locking block, the end of the locking block is inserted into the hanging buckle hole and hooked on the top pressure plate through the groove on the locking block.
Description
Technical Field
The invention relates to the technical field of building installation equipment, in particular to an expansion threaded sleeve for being installed on a building wall.
Background
The expansion bolt is generally composed of two parts, namely a movable expansion screw rod and a fixed expansion pipe, the two parts move relatively under the action of external force, so that the fixed expansion pipe is locally deformed, the volume is enlarged and becomes larger than the inner diameter of a hole, thereby generating locking force, the situation that the diameter of an inner arm of a prefabricated hole is too much larger than the outer diameter of the expansion pipe frequently occurs in the use process, the expansion pipe of the expansion bolt is not in large friction connection with the inner wall of the prefabricated hole, the expansion pipe is not in mutual connection with the bolt, thereby the expansion bolt cannot be screwed in a nut along with the rotation of a spanner in the fastening process, the expansion bolt cannot be expanded and anchored, the problem that individual expansion bolts are not firm is caused, namely, the time is wasted, but also the expansion bolt can not achieve the required effect.
In addition, if the expansion bolt needs to be replaced by a screw with different functions according to different installation requirements, such as screwed, hooked, pulled or hung screws, which have various functions corresponding to different installation modes, due to different installation objects, the expansion bolt needs to be pulled out of the drilled hole, and then a new expansion bolt is installed again, so that the drilled hole is inevitably damaged, and the new expansion bolt cannot be normally installed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides an expansion screw sleeve for being installed on a building wall, and solves the problems that the existing expansion bolt is inconvenient to install and a screw rod with different functions cannot be replaced according to the installation requirement.
The invention is realized by the following technical scheme:
the utility model provides an inflation swivel nut for installing at building wall, includes swivel nut sleeve, roof pressure board and latch segment, be equipped with the anchor screw on the swivel nut sleeve axle center, the swivel nut sleeve outer end is equipped with spacing dish, and the equipartition is encircleed at swivel nut sleeve inner end anchor ring face and has milled at least that two latch segments place the mouth, the latch segment is placed the mouth and is the hook type, and the bottom surface that the mouth was placed to the latch segment is the wedge face, and the wedge face is from the inner outside end slope of swivel nut sleeve, is equipped with a latch segment in every latch segment is placed the mouth, the latch segment is installed and is constituted cylindrical structure with the cooperation of swivel nut sleeve in the latch segment is placed the mouth, is equipped with the slot in the cambered surface of latch segment inner, the roof pressure board sets up in swivel nut sleeve inner, is equipped with the string knot hole that corresponds with the latch segment on the roof pressure board, the end of latch segment is inserted and is set.
Compared with the traditional expansion bolt structure, the expansion screw sleeve for being installed on the building wall is creatively provided with the expansion screw sleeve, namely, the screw sleeve is anchored in a drilled hole, and then screws with different functions are selected to be installed in the screw sleeve according to installation requirements, so that the expansion screw sleeve can be repeatedly used, the screw sleeve cannot be damaged when the screws with different functions are replaced, and even if the expansion screw sleeve needs to be disassembled, only one screw is needed.
Furthermore, a barb tooth surface which increases friction with the inner wall of the drill hole is arranged on the outer arc surface of the locking block.
Furthermore, an inner barb tooth surface is arranged on a wedge surface of the locking block, an outer barb tooth surface is arranged on a wedge surface of the locking block placing opening, and the inner barb tooth surface and the outer barb tooth surface are matched with each other to enable the locking block to be limited at the locking block placing opening fastening position.
Furthermore, four locking block placing openings are uniformly and annularly milled on the ring surface of the inner end part of the screw sleeve, and four locking blocks are arranged on the corresponding screw sleeve.
Furthermore, an expansion dismantling screw hole is formed in the position, corresponding to the anchoring screw hole, of the top pressure plate, and the aperture of the expansion dismantling screw hole is smaller than that of the anchoring screw hole.
Furthermore, the limiting disc is provided with at least two wall nail counter bores, and the wall nails are adopted to fix the limiting disc on the wall surface through the wall nail counter bores.
Furthermore, the inner surface of the limiting disc and the included angle of the screw sleeve are welded into a horn shape.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. compared with the traditional expansion bolt structure, the expansion threaded sleeve for mounting on the building wall is creatively provided with the expansion threaded sleeve, namely, one threaded sleeve is anchored in a drilled hole, and then screws with different functions are selected according to mounting requirements and mounted in the threaded sleeve, so that the expansion threaded sleeve can be reused, the screws with different functions cannot damage the threaded sleeve, and even if the expansion threaded sleeve needs to be dismounted, only one screw is needed;
2. the expansion thread insert is convenient to anchor and install, even if a drill hole is too large as described in the background art, if the traditional expansion bolt is not good to install the anchor, the expansion thread insert can easily solve the problem, only the dislocation size of the locking block placing opening and the locking block is increased, the more the dislocation of the locking block and the locking block placing opening is, the larger the outer diameter of the locking block expands, and the thread insert is firmly supported in the drill hole, namely, a thread insert barrel is clamped and fixed through the locking block;
3. the expansion screw sleeve is convenient to install, only a screw matched with an anchoring screw hole of a screw sleeve and a wrench are needed, the screw is installed in the anchoring screw hole through the screw, a jacking plate is continuously extruded, a locking block and a locking block placing opening are staggered and unfolded, the outer diameter of the locking block can expand, the locking block is firmly supported in a drill hole, and the screw sleeve barrel is clamped and fixed through the locking block; after the screw sleeve is anchored, screws with different functions are selected according to installation requirements and installed in the screw sleeve.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic view of an expansion screw for installation in a building wall according to the present invention;
FIG. 2 is a schematic view of an anchoring state of an expansion screw sleeve for installation in a building wall according to the present invention;
FIG. 3 is a schematic view of an anchor rod installed on an expansion screw sleeve for installation on a building wall according to the present invention;
FIG. 4 is a schematic structural view of the screw sleeve of the present invention;
FIG. 5 is a schematic view of the top press plate according to the present invention;
FIG. 6 is a schematic view of the locking block of the present invention;
FIG. 7 is a side view of the locking segment of the present invention;
reference numbers and corresponding part names in the drawings:
1-screw sleeve, 2-top pressure plate, 3-locking block, 4-anchoring screw hole, 5-limiting disc, 6-locking block placing opening, 7-groove, 8-button hole, 9-drilling hole, 10-barb tooth surface, 11-inner barb tooth surface, 12-outer barb tooth surface, 13-expansion removal screw hole, 14-wall nail counter bore, 15-wall nail, 16-horn type, 17-wall surface and 18-anchoring screw rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Examples
As shown in fig. 1-7, the invention relates to an expansion screw sleeve for mounting on a building wall, which comprises a screw sleeve 1, a top pressure plate 2 and a locking block 3, wherein an anchoring screw hole 4 is arranged on the axis of the screw sleeve 1, a limiting disc 5 is arranged at the outer end of the screw sleeve 1 and welded at the outer end of the screw sleeve 1 in a flange structure, the limiting disc 5 mainly has a limiting function, the screw sleeve 1 is mounted in a drill hole 9, the screw sleeve 1 cannot be continuously inserted into the drill hole 9 through the limitation of the limiting disc 5, the screw sleeve 1 is in a cylindrical structure with the anchoring screw hole 4, four locking block placing openings 6 are uniformly and circumferentially milled on the annular surface of the inner end of the screw sleeve 1 through a milling cutter, the locking block placing openings 6 are in a sickle shape, namely, the shape of '7', the bottom surface of the locking block placing openings 6 is a wedge-shaped surface, the wedge-shaped bottom surface of the locking block placing openings 6 inclines outwards, a locking block 3 is arranged in each locking block placing opening 6, the locking blocks are arranged in the anchoring screw holes through screws, and the jacking plates are continuously extruded, so that the locking blocks and the locking block placing openings are staggered and unfolded, the outer diameters of the locking blocks can be expanded, the locking blocks are firmly supported in the drill holes, and the screw sleeve is clamped and fixed through the locking blocks; after the screw sleeve is anchored, screws with different functions are selected according to installation requirements and installed in the screw sleeve. The locking block 3 is arranged in the locking block placing opening 6 and is matched with the screw sleeve 1 to form a cylindrical structure, the four locking blocks 3 can be easily inserted into the drill hole 9 when matched with the screw sleeve 1, the groove 7 is arranged on the cambered surface of the inner end of the locking block 3, on one hand, the locking block 3 and the top pressure plate 2 can form a hanging buckle structure and cannot be separated, on the other hand, when the locking block 3 is moved towards the bottom of the drill hole 9 by the top pressure plate 2, due to the guiding effect of the locking block placing opening 6, the locking block 3 can be radially unfolded along the screw sleeve 1, the groove 7 can still be connected with the top pressure plate 2 in a hanging buckle mode in the outward unfolding process of the locking block 3 and cannot be separated, the radial unfolding of the locking block 3 cannot be influenced, the top pressure plate 2 is arranged at the inner end of the screw sleeve 1, the top pressure plate 2 is provided with a hanging buckle hole 8 corresponding to the locking block 3, the end of the locking block 3 is inserted into the hanging buckle hole, the locking block 3 is hooked on the top pressure plate 2 through a groove 7.
As shown in fig. 6, the outer arc surface of the locking block 3 is provided with a barbed tooth surface 10 which increases friction with the inner wall of the bore 9. The barb tooth surface 10 is provided with barb threads, and as can be seen from fig. 6, barbs are inclined inwards, the design can make the locking block 3 move towards the bottom of the drill hole 9 under the driving of the jacking plate 2 simpler, and when the screw sleeve 1 is pulled outwards by the anchoring screw 18, the barb tooth surface 10 can firmly grab the inner wall of the drill hole 9, so that the screw sleeve 1 is prevented from being pulled out of the drill hole 9.
The wedge surface of the locking block 3 is provided with an inner barb tooth surface 11, the wedge surface of the locking block placing opening 6 is provided with an outer barb tooth surface 12, and the inner barb tooth surface 11 and the outer barb tooth surface 12 are mutually matched to limit the locking block 3 at a fastening position on the locking block placing opening 6. The structure principle of the inner barbed tooth surface 11 and the outer barbed tooth surface 12 is the same as that of the barbed tooth surface 10, and the locking block 3 is limited by the friction force of the locking block placing opening 6 and cannot move reversely, namely can only move towards the bottom of the drill hole 9.
And an expansion dismantling screw hole 13 is arranged at the position, corresponding to the anchoring screw hole 4, on the top pressure plate 2, and the aperture of the expansion dismantling screw hole 13 is smaller than that of the anchoring screw hole 4. The screw sleeve 1 anchor is in drilling, can select the screw rod of different functions to install in the swivel nut according to the installation needs can, can used repeatedly, the screw rod of changing different functions can not destroy the swivel nut, even, need demolish the inflation swivel nut, only need a screw can, adopt an external diameter to be less than anchor screw 4 screw, demolish screw 13 screw-thread fit with the inflation, install on the inflation is demolishd screw 13 through anchor screw 4, then constantly rotate the screw until the latch segment 3 resets and gets into the latch segment and place mouthful 6 in, what just can relax demolishs screw sleeve 1.
The limiting disc 5 is provided with at least two wall nail counter bores 14, and the limiting disc 5 is fixed on a wall surface 17 through the wall nail counter bores 14 by adopting wall nails 15. Adopt wall nail 15 fixed spacing dish 5, mainly be in order to prevent that the screw sleeve 1 from rotating when anchor screw sleeve 1, also can play the fixed action to screw sleeve 1 through spacing dish 5 nail on the wall body.
And a horn-shaped 16 is welded on the included angle between the inner surface of the limiting disc 5 and the screw sleeve 1. The trumpet 16 forms a cone for mounting the screw sleeve 1 concentrically in the borehole on the one hand and for fitting the screw sleeve 1 tightly in the borehole 9 on the other hand.
As shown in fig. 1-3, in the anchoring step of the expansion screw sleeve for mounting on the building wall, a hole is drilled on the wall, the assembled expansion screw sleeve is mounted in the drilled hole 9, the limiting disc 5 is fixedly attached to the wall surface 17, a screw rod matched with the anchoring screw hole 4 and a wrench are adopted, the screw rod is mounted in the anchoring screw hole 4 to continuously press the jacking plate 2, so that the locking block and the locking block placing opening are staggered and unfolded, the outer diameter of the locking block is expanded, the locking block is firmly supported in the drilled hole, and the screw sleeve is clamped and fixed through the locking block; after the screw sleeve is anchored, screws with different functions are selected according to installation requirements and installed in the screw sleeve. The configuration of the anchor screw 18 can be selected to provide different functions, such as screwing, hooking, pulling or hooking, depending on the installation requirements.
Compared with the traditional expansion bolt structure, the expansion threaded sleeve for mounting on the building wall is creatively provided with the expansion threaded sleeve, namely, one threaded sleeve is anchored in a drilled hole, and then screws with different functions are selected according to mounting requirements and mounted in the threaded sleeve, so that the expansion threaded sleeve can be reused, the screws with different functions cannot damage the threaded sleeve, and even if the expansion threaded sleeve needs to be dismounted, only one screw is needed; the expansion threaded sleeve is convenient to anchor and install, even if a drill hole is too large as described in the background art, if the traditional expansion bolt is determined to be poor in anchoring, the expansion threaded sleeve can easily solve the problem, only the dislocation size of the locking block placing opening and the locking block is increased, the more the locking block is dislocated with the locking block placing opening, the larger the outer diameter of the locking block is expanded, and the locking block is firmly supported in the drill hole, namely, the threaded sleeve is clamped and fixed through the locking block; the expansion screw sleeve is convenient to install, only a screw matched with the anchoring screw hole of the screw sleeve and a wrench are needed, the top pressure plate is continuously extruded in the anchoring screw hole through the screw installation, the locking block and the locking block placing opening are staggered and unfolded, the outer diameter of the locking block is expanded, the locking block is firmly supported in a drill hole, and the screw sleeve barrel is clamped and fixed through the locking block; after the screw sleeve is anchored, screws with different functions are selected according to installation requirements and installed in the screw sleeve.
The invention has simple structure, convenient installation and removal, small influence by the size of the drilled hole and capability of eradicating the anchoring screw to realize the reuse of the screw sleeve.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. The utility model provides an inflation swivel nut for installing at building wall, includes swivel nut sleeve (1), roof pressure board (2) and latch segment (3), its characterized in that: the anchor screw hole (4) is arranged on the axis of the screw sleeve (1), the outer end of the screw sleeve (1) is provided with a limiting disc (5), the end ring surface of the inner end of the screw sleeve (1) is uniformly distributed and at least milled with two locking blocks to place the opening (6), the locking block placing opening (6) is in a sickle shape, the bottom surface of the locking block placing opening (6) is a wedge-shaped surface, the wedge-shaped bottom surface of the locking block placing opening (6) inclines from the inner end to the outer end of the screw sleeve (1), a locking block (3) is arranged in each locking block placing opening (6), the locking block (3) is arranged in the locking block placing opening (6) and is matched with the screw sleeve (1) to form a cylindrical structure, the inner end of the locking block (3) is provided with an arc groove (7), the jacking plate (2) is arranged at the inner end of the screw sleeve (1), and the jacking plate (2) is provided with a hanging buckling hole (8), the end of the locking block (3) is inserted into the hanging buckle hole (8) and is hooked on the top pressure plate (2) through the groove (7) on the locking block (3);
and the top pressure plate (2) is provided with an expansion dismantling screw hole (13) at a position corresponding to the anchoring screw hole (4), and the aperture of the expansion dismantling screw hole (13) is smaller than that of the anchoring screw hole (4).
2. An expansion screw sleeve for mounting on a building wall according to claim 1, wherein: and a barb tooth surface (10) which increases friction with the inner wall of the drill hole (9) is arranged on the outer arc surface of the locking block (3).
3. An expansion screw sleeve for mounting on a building wall according to claim 1, wherein: an inner barb tooth surface (11) is arranged on the wedge surface of the locking block (3), an outer barb tooth surface (12) is arranged on the wedge surface of the locking block placing opening (6), and the inner barb tooth surface (11) and the outer barb tooth surface (12) are mutually matched to limit the locking block (3) at the fastening position on the locking block placing opening (6).
4. An expansion screw sleeve for mounting on a building wall according to claim 1, wherein: four locking block placing openings (6) are uniformly distributed on the ring surface of the inner end part of the screw sleeve (1) in a surrounding and milling mode, and four locking blocks (3) are arranged on the corresponding screw sleeve (1).
5. An expansion screw sleeve for mounting on a building wall according to claim 1, wherein: the limiting disc (5) is provided with at least two wall nail counter bores (14), and the limiting disc (5) is fixed on a wall surface (17) through the wall nail counter bores (14) by adopting wall nails (15).
6. An expansion screw sleeve for mounting on a building wall according to claim 1, wherein: the inner surface of the limiting disc (5) and the included angle of the screw sleeve (1) are welded into a horn shape (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910241737.5A CN109989975B (en) | 2019-03-28 | 2019-03-28 | Expansion screw sleeve for being installed on building wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910241737.5A CN109989975B (en) | 2019-03-28 | 2019-03-28 | Expansion screw sleeve for being installed on building wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109989975A CN109989975A (en) | 2019-07-09 |
| CN109989975B true CN109989975B (en) | 2020-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910241737.5A Active CN109989975B (en) | 2019-03-28 | 2019-03-28 | Expansion screw sleeve for being installed on building wall |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB402375A (en) * | 1932-09-13 | 1933-11-30 | Nicolaas Sluyter | Improvements in or relating to wedge or anchor bolts |
| FR2367934B1 (en) * | 1976-10-13 | 1982-12-10 | Cocentall Ateliers Carspach Sa | |
| GB2145493A (en) * | 1983-08-23 | 1985-03-27 | Heinrich Sohnius | An expansion bolt |
| DE19740823A1 (en) * | 1997-09-17 | 1999-03-18 | Hilti Ag | Expansion dowels |
| CN201411689Y (en) * | 2009-05-08 | 2010-02-24 | 中冶实久建设有限公司 | Expansion type anchoring pile |
| WO2014119488A1 (en) * | 2013-02-01 | 2014-08-07 | 株式会社豊和 | Anchor bolt |
| WO2015019630A1 (en) * | 2013-08-08 | 2015-02-12 | 株式会社豊和 | Anchor bolt |
| WO2015052947A1 (en) * | 2013-10-09 | 2015-04-16 | 株式会社豊和 | Anchor bolt manufacturing method |
| JP2015087003A (en) * | 2013-11-01 | 2015-05-07 | 株式会社豊和 | Anchor blot |
-
2019
- 2019-03-28 CN CN201910241737.5A patent/CN109989975B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB402375A (en) * | 1932-09-13 | 1933-11-30 | Nicolaas Sluyter | Improvements in or relating to wedge or anchor bolts |
| FR2367934B1 (en) * | 1976-10-13 | 1982-12-10 | Cocentall Ateliers Carspach Sa | |
| GB2145493A (en) * | 1983-08-23 | 1985-03-27 | Heinrich Sohnius | An expansion bolt |
| DE19740823A1 (en) * | 1997-09-17 | 1999-03-18 | Hilti Ag | Expansion dowels |
| CN201411689Y (en) * | 2009-05-08 | 2010-02-24 | 中冶实久建设有限公司 | Expansion type anchoring pile |
| WO2014119488A1 (en) * | 2013-02-01 | 2014-08-07 | 株式会社豊和 | Anchor bolt |
| WO2015019630A1 (en) * | 2013-08-08 | 2015-02-12 | 株式会社豊和 | Anchor bolt |
| WO2015052947A1 (en) * | 2013-10-09 | 2015-04-16 | 株式会社豊和 | Anchor bolt manufacturing method |
| JP2015087003A (en) * | 2013-11-01 | 2015-05-07 | 株式会社豊和 | Anchor blot |
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| Publication number | Publication date |
|---|---|
| CN109989975A (en) | 2019-07-09 |
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Effective date of registration: 20200611 Address after: No.22-23, Tonghu Road, Huxia Development Zone, tangkeng Town, Fengshun County, Meizhou City, Guangdong Province Applicant after: GUANGDONG ZHUJIANG ENGINEERING GENERAL CONTRACT Co.,Ltd. Address before: 643214 No. 38, Group 4, Zhoujiacun, Gufo Town, Fushun County, Zigong City, Sichuan Province Applicant before: Wang Ping |
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