CN212985729U - High-stability expansion bolt - Google Patents
High-stability expansion bolt Download PDFInfo
- Publication number
- CN212985729U CN212985729U CN202021565967.1U CN202021565967U CN212985729U CN 212985729 U CN212985729 U CN 212985729U CN 202021565967 U CN202021565967 U CN 202021565967U CN 212985729 U CN212985729 U CN 212985729U
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- expansion
- screw rod
- bolt
- expansion pipe
- stability
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Abstract
The utility model discloses an expansion bolts of high stability, the electric iron comprises a screw rod, the screw rod surface is equipped with bolt expansion mechanism, bolt expansion mechanism one end is equipped with rotation anti-skidding mechanism. The beneficial effects of the utility model are that, when using expansion bolts, can prevent effectively that screw rod and expansion pipe from taking place with the condition of changeing, make expansion bolts have better compatibility when improving expansion bolts stability.
Description
Technical Field
The utility model relates to an expansion bolts technical field, more specifically the theory relates to an expansion bolts of high stability.
Background
The expansion screw is fixed by utilizing the wedge slope to promote expansion to generate friction bond force so as to achieve the fixing effect, one end of the screw is provided with threads, the other end of the screw is provided with a taper, the outer side of the screw is coated with a steel sheet, a plurality of notches are arranged on one half of a steel sheet cylinder, the steel sheet cylinder and the screw are plugged into a hole drilled on a wall together, then a nut is locked, the nut pulls the screw outwards to pull the taper into the steel sheet cylinder, the steel sheet cylinder is expanded, and the aim of tightly fixing the screw on the wall is achieved;
the hole diameter formed in the ground or the wall in advance may be slightly larger than the actual outer diameter of the expansion bolt housing, so that the problem that the expansion bolt housing rotates along with the rotation of the screw rod (namely, the expansion bolt housing rotates along with the screw rod) occurs in the process of screwing the screw rod, the tension of the expansion bolt on the bolt housing is small at the moment, or the expansion bolt is not stressed at all, the expansion bolt cannot reach the expected pre-tightening force, and the installation of equipment or a device is not stable.
SUMMERY OF THE UTILITY MODEL
To above defect, the utility model provides an expansion bolts of high stability to the problem of solution.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a high-stability expansion bolt comprises a screw, wherein a bolt expansion mechanism is arranged on the outer surface of the screw, and a rotating anti-skidding mechanism is arranged at one end of the bolt expansion mechanism;
the bolt expansion mechanism comprises a fastening nut at one end of a screw rod, a conical block is mounted at the other end of the screw rod, an expansion pipe is mounted on one side of the screw rod, the screw rod is connected with the expansion pipe in a sleeved mode, a triangular opening is formed in one end of the expansion pipe, four triangular openings are formed in the triangular opening, and a rectangular opening is formed in one end of the triangular opening;
the anti-skid mechanism comprises a limiting block on the side surface of the screw rod, the limiting block corresponds to the position of the rectangular opening, the fixing plate is installed at one end of the expansion pipe, the triangular block is installed on one side of the fixing plate, and the triangular block is fixedly connected with the fixing plate.
Furthermore, a circular gasket is arranged on one side of the fastening nut.
The utility model has the advantages that: when using expansion bolts, can prevent effectively that screw rod and expansion pipe from following the condition of changeing and taking place, make expansion bolts have better compatibility when improving expansion bolts stability.
Drawings
Fig. 1 is a schematic structural view of a high stability expansion bolt according to the present invention;
FIG. 2 is a schematic view of an expansion tube;
FIG. 3 is a schematic cross-sectional view of an expansion tube;
in the figure, 1, a screw; 2. fastening a nut; 3. a conical block; 4. an expansion tube; 5. a triangular opening; 6. a rectangular opening; 7. a limiting block; 8. a fixing plate; 9. a triangular block; 10. a circular gasket.
Detailed Description
The utility model will be described in detail with reference to the accompanying drawings, as shown in fig. 1-3, a high-stability expansion bolt comprises a screw rod 1, a bolt expansion mechanism is arranged on the outer surface of the screw rod 1, and a rotation anti-skid mechanism is arranged at one end of the bolt expansion mechanism;
the bolt expansion mechanism comprises a fastening nut 2 at one end of a screw rod 1, a conical block 3 is mounted at the other end of the screw rod 1, an expansion pipe 4 is mounted at one side of the screw rod 1, the screw rod 1 is connected with the expansion pipe 4 in a sleeved mode, a triangular opening 5 is formed in one end of the expansion pipe 4, four triangular openings 5 are formed in the other end of the expansion pipe, and a rectangular opening 6 is formed in one end of each triangular opening 5;
the anti-skid mechanism comprises a limiting block 7 on the side surface of the screw rod 1, the limiting block 7 corresponds to the rectangular opening 6 in position, a fixing plate 8 is installed at one end of the expansion pipe 4, a triangular block 9 is installed on one side of the fixing plate 8, and the triangular block 9 is fixedly connected with the fixing plate 8.
A circular washer 10 is provided on one side of the fastening nut 2.
In the embodiment, when the expansion bolt is used, the whole expansion bolt is firstly plugged into a pre-drilled fixing hole, then the fastening nut 2 is manually screwed, so that the screw rod 1 and the expansion pipe 4 are in relative motion, only linear relative motion can be generated between the screw rod 1 and the expansion pipe 4 under the action of the limiting block 7 and the rectangular opening 6, the screw rod 1 and the expansion pipe 4 cannot rotate, and the screw rod 1 and the expansion pipe 4 are prevented from rotating;
through fastening nut 2 last precession, can drive toper piece 3 and continuously be close to expansion pipe 4, when toper piece 3 contacted expansion pipe 4, can outwards expand 6 partial expansion pipes 4 of rectangle mouth, make 4 one end extrusion fixed orificess of expansion pipe, through the effect of fixed plate 8, triangle piece 9, can increase the frictional force between expansion pipe 4 and the fixed orifices, avoid the whole and fixed orifices of bolt to take place to rotate.
Above-mentioned technical scheme has only embodied the utility model discloses technical scheme's preferred technical scheme, some changes that this technical field's technical personnel probably made to some parts wherein have all embodied the utility model discloses a principle belongs to within the protection scope of the utility model.
Claims (2)
1. The high-stability expansion bolt comprises a screw rod (1) and is characterized in that a bolt expansion mechanism is arranged on the outer surface of the screw rod (1), and a rotary anti-skid mechanism is arranged at one end of the bolt expansion mechanism;
the bolt expansion mechanism comprises a fastening nut (2) at one end of a screw rod (1), a conical block (3) is mounted at the other end of the screw rod (1), an expansion pipe (4) is mounted on one side of the screw rod (1), the screw rod (1) is connected with the expansion pipe (4) in a sleeved mode, a triangular opening (5) is formed in one end of the expansion pipe (4), four triangular openings (5) are formed, and a rectangular opening (6) is formed in one end of each triangular opening (5);
rotate anti-skidding mechanism and include stopper (7) of screw rod (1) side surface, stopper (7) are corresponding with the position of rectangle mouth (6), and fixed plate (8) are installed to expansion pipe (4) one end, and three hornblocks (9) are installed to fixed plate (8) one side, and three hornblocks (9) and fixed plate (8) fixed connection.
2. A high stability expansion bolt according to claim 1, characterized in that the fastening nut (2) is provided with a circular washer (10) on one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021565967.1U CN212985729U (en) | 2020-08-01 | 2020-08-01 | High-stability expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021565967.1U CN212985729U (en) | 2020-08-01 | 2020-08-01 | High-stability expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212985729U true CN212985729U (en) | 2021-04-16 |
Family
ID=75430769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021565967.1U Active CN212985729U (en) | 2020-08-01 | 2020-08-01 | High-stability expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212985729U (en) |
-
2020
- 2020-08-01 CN CN202021565967.1U patent/CN212985729U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |