CN219139570U - High-strength anti-pulling screw assembly - Google Patents
High-strength anti-pulling screw assembly Download PDFInfo
- Publication number
- CN219139570U CN219139570U CN202223074400.6U CN202223074400U CN219139570U CN 219139570 U CN219139570 U CN 219139570U CN 202223074400 U CN202223074400 U CN 202223074400U CN 219139570 U CN219139570 U CN 219139570U
- Authority
- CN
- China
- Prior art keywords
- wheel platform
- hollow nut
- nut
- expansion pipe
- platform hollow
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model relates to the technical field of fasteners and discloses a high-strength anti-pulling screw assembly which comprises a nut, wherein the outer wall of the nut is fixedly connected with a screw, the front end of the outer wall of the screw is provided with a front expansion pipe, the rear end of the outer wall of the screw is provided with a rear expansion pipe, the front half part of the screw is provided with a bidirectional wheel platform hollow nut, the middle and rear part of the screw is provided with a unidirectional wheel platform hollow nut, and the tail part of the screw is provided with a petal bolt. According to the utility model, the structural design is novel, the high-strength anti-pulling capacity of the petal bolts is overlapped through multi-channel expansion and locking, the high-strength anti-pulling capacity of the fasteners is achieved, the nuts cannot loose physical effects, and accidents caused by failure in time to maintain and repair equipment in the later period are avoided, so that economic loss is avoided, the safety guarantee is improved, and the self-loosening nut cannot be used for industrial, building, mechanical and various equipment with high-strength anti-pulling fastening requirements.
Description
Technical Field
The utility model relates to the technical field of fasteners, in particular to a high-strength anti-pulling screw assembly.
Background
Common nuts and screw columns on the market are the most common fasteners for people, the nuts and the screw columns are mainly meshed through screw teeth, gaps are still reserved between inner threads of the nuts and outer threads of the screw columns during meshing, and when objects fixed between the nuts and the screw columns vibrate, the nuts and the screw columns are loosened, particularly the fastened objects are materials which are formed by weathering of concrete, bricks, stones and the like along with time, the pulling resistance of the fasteners is insufficient, the objects are unstable and collapse, and serious economic loss and safety accidents are possibly caused.
In order to increase the pulling resistance of a fastener when a common nut and a screw column are used for fixing an object in the market, an expansion pipe is usually added on a screw rod, when the nut is screwed down, the screw rod moves outwards, and the expansion pipe is expanded through axial movement of threads, so that the screw is fixed on a wall. However, in the long-term use process of the screw, loosening is easy to occur due to vibration and the like, the pulling resistance is greatly reduced, at the moment, the nut is required to be screwed again, the expansion pipe is enabled to be continuously expanded, and the screw is enabled to be fixed on the wall again; however, in the practical operation process, the inventor finds that the anti-pulling action of the fastener is only supported at a single joint point of the expansion pipe and the wall body, the friction force generated by expanding the expansion pipe is completely relied on, the stress point is too single, after a gap appears at the wall body part where the screw is located, the gap appears at the wall body part where the expansion screw is located, the expansion pipe is expanded to the maximum, the screw is still in a loose state, and the problem that the fastener is fixed and fails because the larger anti-pulling force is difficult to bear.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides a high-strength anti-pulling screw assembly.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a high strength anti-pulling screw assembly, includes the nut, the outer wall fixedly connected with screw rod of nut, the outer wall sliding connection of screw rod has the gasket, the outer wall front end of screw rod is provided with leading expansion pipe, the outer wall rear end of screw rod is provided with rearmounted expansion pipe, the first half of screw rod is provided with two-way wheel platform hollow nut, the well rear portion of screw rod is provided with one-way wheel platform hollow nut, the afterbody of screw rod is provided with the petal bolt.
As a further description of the above technical solution:
the front end of the front expansion pipe is provided with a first front expansion pipe cylinder, the rear end of the outer wall of the front expansion pipe is provided with a front expansion pipe slot, the front end and the rear end of the outer wall of the rear expansion pipe are both provided with front expansion pipe slots, and the middle end of the outer wall of the rear expansion pipe is provided with a second front expansion pipe cylinder.
As a further description of the above technical solution:
the bidirectional wheel platform hollow nut comprises a bidirectional wheel platform hollow nut hole, a bidirectional wheel platform hollow nut cone and a bidirectional wheel platform hollow nut hoop, wherein threads are formed in the bidirectional wheel platform hollow nut cone and the bidirectional wheel platform hollow nut hoop at the center of the inside of the bidirectional wheel platform hollow nut.
As a further description of the above technical solution:
the unidirectional wheel platform hollow nut comprises a unidirectional wheel platform hollow nut hole, a unidirectional wheel platform hollow nut cone body and a unidirectional wheel platform hollow nut hoop, wherein the unidirectional wheel platform hollow nut hole is formed in the unidirectional wheel platform hollow nut, and threads are arranged in the unidirectional wheel platform hollow nut cone body and the unidirectional wheel platform hollow nut hoop.
As a further description of the above technical solution:
the petal bolt comprises a petal bolt head gasket, a petal bolt tail nut head, a petal bolt middle bolt wing and a side bolt wing, wherein a first hole is formed in the petal bolt head gasket, a second hole is formed in the petal bolt tail nut head, and threads are arranged in the second hole.
As a further description of the above technical solution:
the front ends of the two-way wheel platform hollow nut and the one-way wheel platform hollow nut are of wheel platform conical structures.
As a further description of the above technical solution:
the novel expansion device comprises a front expansion pipe, a rear expansion pipe, a two-way wheel platform hollow nut, a one-way wheel platform hollow nut and petal bolts, wherein the front expansion pipe, the rear expansion pipe, the two-way wheel platform hollow nut and the petal bolts are of an integrated structure, a wall body is arranged on one side of the outer wall of the gasket, and a wall body pre-opening hole is formed in the wall body.
The utility model has the following beneficial effects:
according to the utility model, the high-strength anti-pulling capacity of the petal bolts is overlapped through multi-channel expansion and locking, so that the high-strength anti-pulling effect of the fastening piece is achieved, the nut cannot loose by itself, and accidents caused by failure in the maintenance of equipment in time in the later period are avoided, so that economic loss is avoided, and the safety guarantee is improved.
Drawings
FIG. 1 is a schematic view of a high strength anti-pull screw assembly according to the present utility model during the process of mounting and fixing the assembly into a mounting hole;
FIG. 2 is a three-dimensional isometric view of FIG. 1 at A;
FIG. 3 is a three-dimensional isometric view of FIG. 1 at B;
FIG. 4 is a three-dimensional isometric view of FIG. 1 at B;
FIG. 5 is a front view of FIG. 4;
FIG. 6 is a three-dimensional isometric view of FIG. 1 at D;
FIG. 7 is a front view of FIG. 6;
FIG. 8 is an enlarged view of a portion of FIG. 1 after installation at E;
FIG. 9 is an enlarged partial view of FIG. 1 before installation at E;
FIG. 10 is a cross-sectional view of F-F in FIG. 9;
fig. 11 is a section H-H of fig. 9.
Legend description:
1. a nut; 2. a gasket; 3. a front expansion pipe; 3.1, a first preposed expansion pipe cylinder; 3.2, slotting the front expansion pipe; 4. a screw; 5. a two-way wheel platform hollow nut; 5.1, a hollow nut hole of the bidirectional wheel platform; 5.2, a hollow nut cone of the two-way wheel platform; 5.3, a hollow nut hoop of the two-way wheel platform; 6. pre-perforating a wall body; 7. a unidirectional wheel platform hollow nut; 7.1, a hollow nut hole of the unidirectional wheel platform; 7.2, a hollow nut cone of the unidirectional wheel platform; 7.3, a hollow nut hoop of the unidirectional wheel platform; 8. petal bolts; 8.1, a petal bolt head gasket; 8.2, a petal bolt tail nut head; 8.3, a middle bolt wing of the petal bolt; 8.4, side bolt wings; 9. a rear expansion pipe; 9.1, a second preposed expansion pipe cylinder; 9.2, grooving the front expansion pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-11, one embodiment provided by the present utility model is: the utility model provides a high strength anti-pulling screw assembly, including nut 1, the outer wall fixedly connected with screw rod 4 of nut 1, nut 1 and screw rod 4 integrated structure as an organic whole, the outer wall sliding connection of screw rod 4 has gasket 2, the outer wall front end of screw rod 4 is provided with leading expansion pipe 3, the outer wall rear end of screw rod 4 is provided with rearmounted expansion pipe 9, the first half of screw rod 4 is provided with two-way wheel platform hollow nut 5, the well rear portion of screw rod 4 is provided with one-way wheel platform hollow nut 7, the afterbody of screw rod 4 is provided with petal bolt 8, increased the area of force with the wall body, in order to reach the purpose of anti-pulling, make the bolt after the installation difficult not hard up, make the structure firm more convenient.
The front end of the preposed expansion pipe 3 is provided with a first preposed expansion pipe cylinder 3.1, the rear end of the outer wall of the preposed expansion pipe 3 is provided with a preposed expansion pipe slot 3.2, the front end and the rear end of the outer wall of the postposed expansion pipe 9 are both provided with preposed expansion pipe slots 9.2, the middle end of the outer wall of the postposed expansion pipe 9 is provided with a second preposed expansion pipe cylinder 9.1, the cylinder 3.1 and the cylinder with the slot 3.2 are of an integrated forming structure, the cylinder 9.1 and the cylinder with the slot 9.2 are of an integrated forming structure, the bidirectional wheel hollow nut 5 comprises a bidirectional wheel hollow nut hole 5.1, a bidirectional wheel hollow nut cone 5.2 and a bidirectional wheel hollow nut hoop 5.3, the inner centers of the bidirectional wheel hollow nut 5.2 and the bidirectional wheel hollow nut 5.3 are both provided with threads, the bidirectional wheel hollow nut 5 is of a hollow structure, the unidirectional wheel platform hollow nut 7 comprises a unidirectional wheel platform hollow nut hole 7.1, a unidirectional wheel platform hollow nut cone 7.2 and a unidirectional wheel platform hollow nut hoop 7.3, the unidirectional wheel platform hollow nut 7 is internally provided with a unidirectional wheel platform hollow nut hole 7.1, the unidirectional wheel platform hollow nut cone 7.2 and the unidirectional wheel platform hollow nut hoop 7.3 are internally provided with threads, the unidirectional wheel platform hollow nut 7 is of a hollow structure, the petal bolt 8 comprises a petal bolt head gasket 8.1, a petal bolt tail nut head 8.2, a petal bolt middle bolt wing 8.3 and a side bolt wing 8.4, a first hole is formed in the petal bolt head gasket 8.1, a second hole is formed in the petal bolt tail nut head 8.2, the interior of the second hole is provided with threads, the petal bolt 8 is of a hollow structure, the petal bolt head gasket 8.1 is provided with a first hole which is convenient for the screw 4 to pass through, the first hole size is suitable for the screw rod 4 to freely pass through, no screw thread is arranged in the first hole, a second hole which is convenient for the screw rod 4 to pass through is reserved in the valve bolt tail nut head 8.2, screw threads are arranged in the second hole, the size of the second hole is consistent with the diameter size of the screw rod 4, the butterfly bolt head gasket 8.1, the valve bolt tail nut head 8.2, the valve bolt middle bolt wing 8.3 and the side bolt wing 8.4 are of an integrated forming structure, the front ends of the bidirectional wheel platform hollow nut 5 and the unidirectional wheel platform hollow nut 7 are of wheel platform conical structures, the front expansion pipe 3, the rear expansion pipe 9, the bidirectional wheel platform hollow nut 5, the unidirectional wheel platform hollow nut 7 and the valve bolt 8 are of an integrated structure, a wall body is arranged on one side of the outer wall body of the gasket 2, and the wall body is internally provided with a wall body pre-opening 6.
Working principle: when the high-strength anti-pulling screw assembly is required to be used, the nut 1 is screwed, so that the bidirectional wheel platform hollow nut 5 and the unidirectional wheel platform hollow nut 7 are pushed forward, the front expansion pipe 3 and the rear expansion pipe 9 are expanded and are in close contact with a wall body, and the friction force between the wall body and the expansion pipe 3 is increased; when the nut 1 is screwed down, the petal bolt 8 deforms under the action of tensile force, the petal shape is changed into a petal shape by a cylinder shape, the middle bolt wings 8.3 and the side bolt wings 8.4 deform under the action of the tensile force, the stressed area of the bolt and a wall body is increased, the purpose of pulling out resistance is achieved, the bolt after installation is difficult to loose, the structure is firmer and more convenient, when the nut 1 is screwed down, the bidirectional wheel platform hollow nut 5 and the unidirectional wheel platform hollow nut 6 are pushed forward, the front expansion pipe 3 and the rear expansion pipe 9 are expanded and are in tight contact with the wall body, the friction force between the wall body and the expansion pipe 3 and the expansion pipe 9 is increased, the bolt after installation is difficult to loose, the bolt is firmer, when the nut 1 is screwed down, the bidirectional wheel platform hollow nut 5 and the unidirectional wheel platform hollow nut 6 are pushed forward, the bidirectional wheel platform hollow nut 7 is pushed forward, the front expansion pipe 3 and the rear expansion pipe 9 are easy to expand, and the joint effect is further improved after the bolt is more convenient and the bolt is more convenient to install through the parts.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (7)
1. The utility model provides a high strength anti-pulling screw subassembly, includes nut (1), its characterized in that: the outer wall fixedly connected with screw rod (4) of nut (1), the outer wall sliding connection of screw rod (4) has gasket (2), the outer wall front end of screw rod (4) is provided with leading expansion pipe (3), the outer wall rear end of screw rod (4) is provided with rearmounted expansion pipe (9), the first half of screw rod (4) is provided with two-way wheel platform hollow nut (5), the well rear portion of screw rod (4) is provided with one-way wheel platform hollow nut (7), the afterbody of screw rod (4) is provided with petal bolt (8).
2. The high strength anti-pull screw assembly of claim 1, wherein: the front end of the front expansion pipe (3) is provided with a first front expansion pipe cylinder (3.1), the rear end of the outer wall of the front expansion pipe (3) is provided with a front expansion pipe slot (3.2), the front end and the rear end of the outer wall of the rear expansion pipe (9) are both provided with front expansion pipe slots (9.2), and the middle end of the outer wall of the rear expansion pipe (9) is provided with a second front expansion pipe cylinder (9.1).
3. The high strength anti-pull screw assembly of claim 1, wherein: the bidirectional wheel platform hollow nut (5) comprises a bidirectional wheel platform hollow nut hole (5.1), a bidirectional wheel platform hollow nut cone body (5.2) and a bidirectional wheel platform hollow nut hoop (5.3), the hollow nut hole (5.1) is formed in the center of the inside of the bidirectional wheel platform hollow nut (5), and threads are arranged in the bidirectional wheel platform hollow nut cone body (5.2) and the inside of the bidirectional wheel platform hollow nut hoop (5.3).
4. The high strength anti-pull screw assembly of claim 1, wherein: the unidirectional wheel platform hollow nut (7) comprises a unidirectional wheel platform hollow nut hole (7.1), a unidirectional wheel platform hollow nut cone body (7.2) and a unidirectional wheel platform hollow nut hoop (7.3), the unidirectional wheel platform hollow nut hole (7.1) is formed in the unidirectional wheel platform hollow nut (7), and threads are arranged in the unidirectional wheel platform hollow nut cone body (7.2) and the unidirectional wheel platform hollow nut hoop (7.3).
5. The high strength anti-pull screw assembly of claim 1, wherein: petal bolt (8) are including petal bolt head gasket (8.1), petal bolt afterbody nut head (8.2), petal bolt middle part bolt wing (8.3) and side bolt wing (8.4), first hole has been seted up to the inside of petal bolt head gasket (8.1), the second hole has been seted up to the inside of petal bolt afterbody nut head (8.2), the inside of second hole is provided with the screw thread.
6. The high strength anti-pull screw assembly of claim 1, wherein: the front ends of the bidirectional wheel platform hollow nut (5) and the unidirectional wheel platform hollow nut (7) are of wheel platform conical structures.
7. The high strength anti-pull screw assembly of claim 1, wherein: the novel expansion device is characterized in that the front expansion pipe (3), the rear expansion pipe (9), the bidirectional wheel platform hollow nut (5), the unidirectional wheel platform hollow nut (7) and the petal bolt (8) are of an integrated structure, a wall body is arranged on one side of the outer wall of the gasket (2), and a wall body pre-opening hole (6) is formed in the wall body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223074400.6U CN219139570U (en) | 2022-11-18 | 2022-11-18 | High-strength anti-pulling screw assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223074400.6U CN219139570U (en) | 2022-11-18 | 2022-11-18 | High-strength anti-pulling screw assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219139570U true CN219139570U (en) | 2023-06-06 |
Family
ID=86593976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223074400.6U Active CN219139570U (en) | 2022-11-18 | 2022-11-18 | High-strength anti-pulling screw assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219139570U (en) |
-
2022
- 2022-11-18 CN CN202223074400.6U patent/CN219139570U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202768570U (en) | Shearing type expansion bolt | |
| US3276308A (en) | Blind fasteners | |
| CN204476975U (en) | A kind of EXPANSION ANCHOR BOLTS | |
| CN209990751U (en) | Novel expansion bolt | |
| CN103967902A (en) | Overturn deforming type unilateral bolt fastener | |
| CN102954079B (en) | A kind of rotating expansion bolt | |
| CN103075407A (en) | Bracing type single-edge bolt fastener | |
| CN219139570U (en) | High-strength anti-pulling screw assembly | |
| CN204387068U (en) | Anti-loosen screw nut component and use the threaded anti-loosing structure of this assembly | |
| CN207005028U (en) | A kind of hidden-type expansion bolt | |
| CN2809311Y (en) | Expansion bolt | |
| CN205858899U (en) | A kind of anchor expansion nut assembly | |
| CN212155400U (en) | Double-hexagon bolt head bolt | |
| CN213575014U (en) | Thread-based slow-moving embedded veneer expansion nail | |
| CN115773299A (en) | High-strength anti-pulling screw assembly and mounting method thereof | |
| CN213808408U (en) | Standardized anti-loose bolt and nut assembly for railway large-scale assembly | |
| CN112628273A (en) | Anti-loosening mechanism | |
| CN211231192U (en) | Stable form expansion screw | |
| CN210739094U (en) | Automatic locking anti-loosening composite nut | |
| CN211039311U (en) | Dismantle convenient novel expansion bolts | |
| CN219623038U (en) | Reusable expansion bolt | |
| CN207848136U (en) | A kind of antidetonation self-locking anchor bolt | |
| CN105863696A (en) | Corrugated anchored rod device high in strength and large in deformation | |
| CN206017366U (en) | A kind of back of the body bolt | |
| CN205781404U (en) | A kind of anti-loosening pipe clamp that is locked |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |