CN213929079U - High stability bolt coupling assembling - Google Patents
High stability bolt coupling assembling Download PDFInfo
- Publication number
- CN213929079U CN213929079U CN202022073785.9U CN202022073785U CN213929079U CN 213929079 U CN213929079 U CN 213929079U CN 202022073785 U CN202022073785 U CN 202022073785U CN 213929079 U CN213929079 U CN 213929079U
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- sleeve
- nut
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- head
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- 230000008878 coupling Effects 0.000 title description 6
- 238000010168 coupling process Methods 0.000 title description 6
- 238000005859 coupling reaction Methods 0.000 title description 6
- 230000001154 acute effect Effects 0.000 claims description 5
- 238000003466 welding Methods 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 210000003781 tooth socket Anatomy 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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- 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
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- 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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/282—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses a high-stability bolt connecting assembly, which comprises a screw rod and a nut with an internal thread, wherein the screw rod comprises a spiral part with an external thread and a head part which is positioned at one end of the spiral part and has an external diameter larger than the external diameter of the spiral part, and the nut is arranged on the spiral part of the screw rod; a sleeve is sleeved on the spiral part between the head of the screw and the nut, the end face of one end of the sleeve is contacted with the head of the screw, a plurality of wire grooves axially parallel to the spiral part are formed in the end face of the other end of the sleeve at intervals along the circumferential direction, and a plurality of raised strips embedded into the wire grooves are formed in the outer surface of the nut at intervals along the circumferential direction; the nut further comprises a first end part with a convex strip and a second end part far away from the sleeve, and the outer surface of the first end part is a conical surface. The utility model discloses can replace the welding, realize fastening connection to one side for a plurality of parts (like the tube column body) in airtight space, and can not appear skidding completely, with the condition that changes even not hard up and drop.
Description
Technical Field
The utility model relates to a building field especially relates to high stability bolt coupling assembling.
Background
As technology has matured, fabricated buildings have begun to emerge and are of general interest to the construction industry. The prefabricated building refers to a building assembled on a construction site by using prefabricated components. The building has the advantages of high building speed, less restriction by climatic conditions, labor saving and building quality improvement.
For the connection of various tubular components in a fabricated building, the method in the technical code of light steel structure houses (JGJ 209-2010) is to sleeve and connect a steel pipe column by a steel sleeve, and then weld the steel pipe column and the steel sleeve together by spot welding on the steel sleeve. However, the method has the disadvantages that the binding force between the steel sleeve and the steel pipe column is not strong, the overall performance is insufficient, the assembly is complex and time-consuming, and the method is better dependent on the professional degree of constructors.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high stability bolt coupling assembling, this high stability bolt coupling assembling can replace the welding, realize fastening connection to one side for a plurality of parts (like the tube column body) of airtight space, and can not appear skidding completely, with the condition that changes even not hard up and drop.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a high-stability bolt connecting assembly comprises a screw and a nut with internal threads, wherein the screw comprises a spiral part with external threads and a head part which is positioned at one end of the spiral part and has an external diameter larger than that of the spiral part, and the nut is arranged on the spiral part of the screw;
a sleeve is sleeved on the spiral part between the head of the screw and the nut, the end face of one end of the sleeve is contacted with the head of the screw, a plurality of wire grooves axially parallel to the spiral part are formed in the end face of the other end of the sleeve at intervals along the circumferential direction, and a plurality of raised strips embedded into the wire grooves are formed in the outer surface of the nut at intervals along the circumferential direction;
the nut further comprises a first end part with a convex strip and a second end part far away from the sleeve, the outer surface of the first end part is a conical surface, the outer diameter of the joint of the first end part and the second end part is the maximum outer diameter of the nut, and the maximum outer diameter is the same as the outer diameter of the sleeve;
the outer wall of the end, far away from the nut, of the sleeve is provided with a first flange part extending outwards in the radial direction, one end face of the first flange part is flush with the end face, far away from the nut, of the sleeve to form a first contact surface, the outer wall, near the end of the sleeve, of the head part of the screw rod is provided with a second flange part extending outwards in the radial direction, and one end face of the second flange part is flush with the end face, near the sleeve, of the head part of the screw rod to form a second contact surface;
all be provided with a plurality of tooth bodies of arranging along circumference on first contact surface, the second contact surface in succession to form a tooth's socket between adjacent tooth body, the tooth body imbeds respectively in the tooth's socket that corresponds, with first contact surface, second contact surface joint, a face of tooth body is for being on a parallel with screw rod, the axial vertical face of sleeve, another face of tooth body is the inclined plane, and the contained angle that forms between this vertical face and the inclined plane is the acute angle.
The further improved scheme in the technical scheme is as follows:
1. in the scheme, an included angle formed between the vertical surface and the inclined surface of the tooth body is 55-65 degrees.
2. In the above scheme, the inner walls of the first end part and the second end part are cylindrical surfaces with the same diameter and threads.
3. In the above scheme, the outer diameter of the first end portion far away from the second end portion is smaller than the inner diameter of the sleeve.
4. In the above scheme, the head part of the screw rod and the spiral part thereof are of an integrally formed structure.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:
1. the utility model discloses high stability bolted connection subassembly, it can replace the welding, realize the fastening connection to one side for a plurality of parts of airtight space (if between two tube cylinder bodies, between a tube cylinder body and other parts), and convenient operation, fastening are effectual, and can not appear skidding completely, with the condition that turns to become flexible even and drop, and then guarantee the stability of connecting between the part.
2. The high-stability bolt connecting component of the utility model has the advantages that the end face of one end of the sleeve is contacted with the head of the screw, the end face of the other end of the sleeve is provided with a plurality of wire grooves which are axially parallel to the spiral part along the circumferential direction at intervals, the outer surface of the nut is provided with a plurality of raised bars for being embedded into the wire grooves along the circumferential direction at intervals, the nut further comprises a first end part with the raised bars and a second end part far away from the sleeve, the outer surface of the first end part is a conical surface, the outer diameter of the joint of the first end part and the second end part is the maximum outer diameter of the nut, the maximum outer diameter is the same as the outer diameter of the sleeve, the relative fixation of the nut and the sleeve is ensured by the embedded joint of the raised bar end part and the wire grooves, thereby realizing the rapid screwing of the nut and the bolt from the outer side, further, having a guiding function and being matched with the conical surface of the first end part, through further to sleeve direction removal of nut, strut sleeve one end outwards, further guarantee connection structure's stability and joint strength, avoid taking place to connect the condition such as not hard up.
3. The high-stability bolt connecting component of the utility model is characterized in that a first flange part extending outwards along the radial direction is arranged on the outer wall of one end of the sleeve far away from the nut, one end face of the first flange part is flushed with the end face of the sleeve far away from the nut to form a first contact surface, a second flange part extending outwards along the radial direction is arranged on the outer wall of one end of the screw head near the sleeve, one end face of the second flange part is flushed with the end face of the screw head near the sleeve to form a second contact surface, a plurality of tooth bodies distributed along the circumferential direction are continuously arranged on the first contact surface and the second contact surface, so that a tooth socket is formed between the adjacent tooth bodies, the tooth bodies are respectively embedded into the corresponding tooth sockets to clamp the first contact surface and the second contact surface, one surface of the tooth bodies is a vertical surface parallel to the axial direction of the screw rod and the sleeve, and the other surface of the tooth bodies is an inclined surface, an included angle formed between the vertical surface and the inclined surface is an acute angle, the screw can only rotate in one direction through the mutual matching of the inclined teeth with right-angled triangle sections, the connection looseness caused by rotation after the installation is avoided, the tooth bodies are directly arranged on the sleeve and the head of the screw, and the structural integrity and the stability are good; furthermore, the contact area between the sleeve and the head of the screw can be increased by the arrangement of the two flange parts, the clamping area between the upper tooth body and the tooth groove of the sleeve is further increased, the resistance of reverse rotation of the screw is increased, and the loosening of connection caused by the rotation of the screw is further avoided.
Drawings
Fig. 1 is a schematic structural view of the high-stability bolt connection assembly of the present invention;
fig. 2 is an exploded view of the high-stability bolt connection assembly of the present invention;
fig. 3 is a schematic view of the high-stability bolt connection assembly according to the present invention;
figure 4 is the utility model discloses high stability bolt coupling assembling's a use scene sketch map.
In the above drawings: 1. a screw; 2. a nut; 3. a spiral portion; 4. a head portion; 5. a sleeve; 6. a wire slot; 7. a convex strip; 8. a first end portion; 9. a second end portion; 11. a tooth body; 12. a tooth socket; 13. a first flange portion; 14. a second flange portion.
Detailed Description
Example 1: a high-stability bolt connecting assembly comprises a screw rod 1 and a nut 2 with internal threads, wherein the screw rod 1 comprises a spiral part 3 with external threads and a head part 4 which is positioned at one end of the spiral part 3 and has an external diameter larger than that of the spiral part 3, and the nut 2 is arranged on the spiral part 3 of the screw rod 1;
a sleeve 5 is sleeved on the spiral part 3 between the head 4 of the screw rod 1 and the nut 2, the end face of one end of the sleeve 5 is contacted with the head 4 of the screw rod 1, a plurality of wire grooves 6 which are parallel to the axial direction of the spiral part 3 are arranged on the end face of the other end of the sleeve 5 at intervals along the circumferential direction, and a plurality of convex strips 7 which are embedded into the wire grooves 6 are arranged on the outer surface of the nut 2 at intervals along the circumferential direction;
the nut 2 further comprises a first end portion 8 with a raised line 7 and a second end portion 9 far away from the sleeve 5, the outer surface of the first end portion 8 is a conical surface, the outer diameter of the joint of the first end portion 8 and the second end portion 9 is the maximum outer diameter of the nut 2, the maximum outer diameter is the same as the outer diameter of the sleeve 5, and the nut and the sleeve are ensured to be relatively fixed through the embedded clamping of the raised line end portion and a wire groove, so that the nut and the bolt can be quickly screwed down only from the outer side, further, a guiding effect can be achieved, the nut is matched with the conical surface of the first end portion, the nut further moves towards the sleeve, one end of the sleeve is outwards propped open, the stability and the connection strength of the connection structure are further ensured, and the situations of connection looseness and the like are avoided;
the outer wall of the sleeve 5 at the end far away from the nut 2 is provided with a first flange part 13 extending outwards along the radial direction, one end face of the first flange part 13 is flush with the end face of the sleeve 5 at the end far away from the nut 2 to form a first contact surface, the outer wall of the head part 4 of the screw rod 1 at the end near the sleeve 5 is provided with a second flange part 14 extending outwards along the radial direction, one end face of the second flange part 14 is flush with the end face of the head part 4 of the screw rod 1 at the end near the sleeve 5 to form a second contact surface;
the first contact surface and the second contact surface are both continuously provided with a plurality of tooth bodies 11 which are distributed along the circumferential direction, so that a tooth groove 12 is formed between the adjacent tooth bodies 11, the tooth bodies 11 are respectively embedded into the corresponding tooth grooves 12, the first contact surface and the second contact surface are clamped, one surface of each tooth body 11 is a vertical surface which is parallel to the axial direction of the screw rod 1 and the sleeve 5, the other surface of each tooth body 11 is an inclined surface, an included angle formed between the vertical surface and the inclined surface is an acute angle, and the screw rod can only rotate in one direction by the mutual matching of inclined teeth with right-angled triangles in section, so that the connection looseness caused by the rotation after the installation is avoided, and the tooth bodies are directly arranged on the sleeve and the head of the screw rod, so that the structure integrity and stability are good; furthermore, the contact area between the sleeve and the head of the screw can be increased by the arrangement of the two flange parts, the clamping area between the upper tooth body and the tooth groove of the sleeve is further increased, the resistance of reverse rotation of the screw is increased, and the loosening of connection caused by the rotation of the screw is further avoided.
The head part 4 of the screw rod 1 is fixedly connected with the spiral part 3 thereof through threads; an included angle formed between the vertical surface and the inclined surface of the tooth body 11 is 56 degrees; the inner walls of the first end portion 8 and the second end portion 9 are cylindrical surfaces having the same diameter and having threads.
Example 2: a high-stability bolt connecting assembly comprises a screw rod 1 and a nut 2 with internal threads, wherein the screw rod 1 comprises a spiral part 3 with external threads and a head part 4 which is positioned at one end of the spiral part 3 and has an external diameter larger than that of the spiral part 3, and the nut 2 is arranged on the spiral part 3 of the screw rod 1;
a sleeve 5 is sleeved on the spiral part 3 between the head 4 of the screw rod 1 and the nut 2, the end face of one end of the sleeve 5 is contacted with the head 4 of the screw rod 1, a plurality of wire grooves 6 which are parallel to the axial direction of the spiral part 3 are arranged on the end face of the other end of the sleeve 5 at intervals along the circumferential direction, and a plurality of convex strips 7 which are embedded into the wire grooves 6 are arranged on the outer surface of the nut 2 at intervals along the circumferential direction;
the nut 2 further comprises a first end part 8 with convex strips 7 and a second end part 9 far away from the sleeve 5, the outer surface of the first end part 8 is a conical surface, the outer diameter of the joint of the first end part 8 and the second end part 9 is the maximum outer diameter of the nut 2, and the maximum outer diameter is the same as the outer diameter of the sleeve 5;
the outer wall of the sleeve 5 at the end far away from the nut 2 is provided with a first flange part 13 extending outwards along the radial direction, one end face of the first flange part 13 is flush with the end face of the sleeve 5 at the end far away from the nut 2 to form a first contact surface, the outer wall of the head part 4 of the screw rod 1 at the end near the sleeve 5 is provided with a second flange part 14 extending outwards along the radial direction, one end face of the second flange part 14 is flush with the end face of the head part 4 of the screw rod 1 at the end near the sleeve 5 to form a second contact surface;
all be provided with a plurality of tooth bodies 11 of arranging along circumference in succession on first contact surface, the second contact surface to form a tooth's socket 12 between adjacent tooth body 11, tooth body 11 imbeds respectively in the tooth's socket 12 that corresponds, with first contact surface, second contact surface joint, a face of tooth body 11 is for being on a parallel with screw rod 1, the 5 axial vertical faces of sleeve, another face of tooth body 11 is the inclined plane, and the contained angle that forms between this vertical face and the inclined plane is the acute angle.
The head 4 of the screw 1 and the spiral part 3 are integrally formed; the included angle formed between the vertical surface and the inclined surface of the tooth body 11 is 62 degrees; the outer diameter of the first end portion 8 remote from the second end portion 9 is smaller than the inner diameter of the sleeve 5.
During the use, earlier with the screw rod, nut and sleeve equipment bolt assembly as an organic whole, it is interior to make the thread groove on the sleeve imbed to sand grip one end on the nut, thereby make nut and sleeve keep relatively fixed, pass bolt assembly again and treat adapting unit's installation through-hole, then fix the sleeve through instruments such as spanner, rotatory screw rod, along with the rotation of screw rod, the nut moves towards the direction that is close to the screw head along the axial of screw rod, further make sand grip imbed in the thread groove on the sleeve, the sleeve outwards opens under the first end effect that the nut has the conical surface simultaneously, move to suitable position when the nut, stop rotatory screw rod, through the mutually supporting of tooth body and tooth's socket on screw head and the sleeve, avoid the screw rod to take place reverse rotation and make the connection not hard up.
When the high-stability bolt connecting assembly is adopted, the high-stability bolt connecting assembly can replace welding and realize fastening connection of a plurality of parts (such as pipe columns) with one side being a closed space, is convenient to operate and good in fastening effect, and completely avoids the situations of slipping, follow-up rotation and even loosening and falling, so that the connection stability of the parts is ensured;
the nut and the sleeve are relatively fixed through the embedded clamping of the end part of the raised line and the wire groove, so that the nut and the bolt can be quickly screwed only from the outer side, further, the nut and the bolt can also play a role in guiding, and one end of the sleeve is outwards propped open through the further movement of the nut towards the sleeve direction by matching with the conical surface of the first end part, so that the stability and the connection strength of a connection structure are further ensured, and the situations of connection looseness and the like are avoided;
the screw can only rotate in one direction by the mutual matching of the helical teeth with right-angled triangle sections, so that the connection looseness caused by rotation after the installation is avoided, and the tooth bodies are directly arranged on the sleeve and the head of the screw, so that the structural integrity and the stability are good;
furthermore, the contact area between the sleeve and the head of the screw can be increased by the arrangement of the two flange parts, the clamping area between the upper tooth body and the tooth groove of the sleeve is further increased, the resistance of reverse rotation of the screw is increased, and the loosening of connection caused by the rotation of the screw is further avoided.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (5)
1. The utility model provides a high stability bolted connection subassembly which characterized in that: the nut is characterized by comprising a screw rod (1) and a nut (2) with an internal thread, wherein the screw rod (1) comprises a spiral part (3) with an external thread and a head part (4) which is positioned at one end of the spiral part (3) and has an external diameter larger than that of the spiral part (3), and the nut (2) is arranged on the spiral part (3) of the screw rod (1);
a sleeve (5) is sleeved on the spiral part (3) between the head (4) of the screw (1) and the nut (2), the end face of one end of the sleeve (5) is in contact with the head (4) of the screw (1), a plurality of wire grooves (6) which are axially parallel to the spiral part (3) are formed in the end face of the other end of the sleeve (5) at intervals along the circumferential direction, and a plurality of raised strips (7) which are embedded into the wire grooves (6) are formed in the outer surface of the nut (2) at intervals along the circumferential direction;
the nut (2) further comprises a first end part (8) with a convex strip (7) and a second end part (9) far away from the sleeve (5), the outer surface of the first end part (8) is a conical surface, the outer diameter of the joint of the first end part (8) and the second end part (9) is the maximum outer diameter of the nut (2), and the maximum outer diameter is the same as the outer diameter of the sleeve (5);
a first flange part (13) extending outwards along the radial direction is arranged on the outer wall of one end, away from the nut (2), of the sleeve (5), one end face of the first flange part (13) is flush with the end face, away from the nut (2), of the sleeve (5) to form a first contact surface, a second flange part (14) extending outwards along the radial direction is arranged on the outer wall of one end, close to the sleeve (5), of the head part (4) of the screw (1), and one end face of the second flange part (14) is flush with the end face, close to the sleeve (5), of the head part (4) of the screw (1) to form a second contact surface;
all be provided with a plurality of tooth bodies (11) of arranging along circumference on first contact surface, the second contact surface in succession to form a tooth's socket (12) between adjacent tooth body (11), tooth body (11) imbed respectively in tooth's socket (12) that correspond, with first contact surface, second contact surface joint, a face of tooth body (11) is for being on a parallel with screw rod (1), sleeve (5) axial vertical face, another face of tooth body (11) is the inclined plane, and the contained angle that forms between this vertical face and the inclined plane is the acute angle.
2. The high stability bolting assembly of claim 1, wherein: an included angle formed between the vertical surface and the inclined surface of the tooth body (11) is 55-65 degrees.
3. A high stability bolt connection assembly according to claim 1 or 2, wherein: the inner walls of the first end part (8) and the second end part (9) are cylindrical surfaces with the same diameter and threads.
4. A high stability bolt connection assembly according to claim 1 or 2, wherein: the outer diameter of one end of the first end part (8) far away from the second end part (9) is smaller than the inner diameter of the sleeve (5).
5. A high stability bolt connection assembly according to claim 1 or 2, wherein: the head (4) of the screw (1) and the spiral part (3) are of an integrally formed structure.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022073785.9U CN213929079U (en) | 2020-09-21 | 2020-09-21 | High stability bolt coupling assembling |
| PCT/CN2021/086741 WO2022057245A1 (en) | 2020-09-21 | 2021-04-12 | High-stability bolt connection assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022073785.9U CN213929079U (en) | 2020-09-21 | 2020-09-21 | High stability bolt coupling assembling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213929079U true CN213929079U (en) | 2021-08-10 |
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ID=77217372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022073785.9U Active CN213929079U (en) | 2020-09-21 | 2020-09-21 | High stability bolt coupling assembling |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN213929079U (en) |
| WO (1) | WO2022057245A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113612066A (en) * | 2021-08-24 | 2021-11-05 | 云南电网有限责任公司电力科学研究院 | Sleeve threaded electric connection device with adjustable contact area |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5702216A (en) * | 1996-08-27 | 1997-12-30 | Wu; Ming-Hsin | Expanding wall plug |
| GB2385398B (en) * | 2002-02-14 | 2005-06-29 | Tyco Europe Metal Framing Ltd | Device |
| GB2421554B (en) * | 2004-12-23 | 2008-03-26 | Tyco Europe Metal Framing Ltd | Blind fastener device |
| GB2491805B (en) * | 2011-05-12 | 2015-07-08 | Tension Control Bolts Ltd | Fastening assembly |
| EP2871374A1 (en) * | 2013-11-06 | 2015-05-13 | HILTI Aktiengesellschaft | Expansion anchor with grooves in the expanding cone |
| EP2876311A1 (en) * | 2013-11-25 | 2015-05-27 | HILTI Aktiengesellschaft | Expansion anchor with swelling element for sleeve fixing |
| CN104454865B (en) * | 2014-12-05 | 2017-06-16 | 斯泰科技（杭州）有限公司 | A kind of back of the body bolt |
| CN106050883B (en) * | 2016-06-21 | 2018-05-11 | 四川大学 | A kind of unilateral bolt connection piece of dual fastening |
| CN106969015A (en) * | 2017-05-25 | 2017-07-21 | 刘韦明 | A kind of expansion bolt external member |
| JP7010429B2 (en) * | 2017-10-27 | 2022-01-26 | ポップリベット・ファスナー株式会社 | Blind bolt |
| EP3564540A1 (en) * | 2018-05-03 | 2019-11-06 | HILTI Aktiengesellschaft | Expansion anchor with protected optical code |
| CN211501235U (en) * | 2019-10-19 | 2020-09-15 | 浙江希玛科技有限公司 | Spiral anchor bolt with self-locking function |
-
2020
- 2020-09-21 CN CN202022073785.9U patent/CN213929079U/en active Active
-
2021
- 2021-04-12 WO PCT/CN2021/086741 patent/WO2022057245A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113612066A (en) * | 2021-08-24 | 2021-11-05 | 云南电网有限责任公司电力科学研究院 | Sleeve threaded electric connection device with adjustable contact area |
| CN113612066B (en) * | 2021-08-24 | 2023-09-29 | 云南电网有限责任公司电力科学研究院 | Sleeve thread electric connection device with adjustable contact area |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022057245A1 (en) | 2022-03-24 |
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