CN219655042U - Expansion bolt's fixed cover - Google Patents
Expansion bolt's fixed cover Download PDFInfo
- Publication number
- CN219655042U CN219655042U CN202320264904.XU CN202320264904U CN219655042U CN 219655042 U CN219655042 U CN 219655042U CN 202320264904 U CN202320264904 U CN 202320264904U CN 219655042 U CN219655042 U CN 219655042U
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- Prior art keywords
- expansion
- sleeve body
- holes
- sleeve
- side wall
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- 230000000694 effects Effects 0.000 abstract description 14
- 239000011324 bead Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model relates to a fixing sleeve of an expansion bolt, which relates to the technical field of fasteners and comprises a sleeve body, wherein a splicing groove for splicing the bolt is formed in the sleeve body, a plurality of first expansion holes are formed in the side wall of the splicing groove at intervals along the length direction of the splicing groove, a plurality of second expansion holes are formed in the side wall of the first expansion holes at intervals along the length direction of the first expansion holes, and a plurality of transverse lugs and a plurality of longitudinal lugs are formed between the second expansion holes and the second expansion holes. The utility model has the effect of more contact points between the fixed sleeve and the inner side wall of the hole when the fixed sleeve is expanded.
Description
Technical Field
The utility model relates to the technical field of fasteners, in particular to a fixing sleeve of an expansion bolt.
Background
Expansion bolts are a special threaded connection used for fixing brackets or equipment on walls, floors or columns, and are generally used for fastening guard rails, air conditioners and the like on materials such as cement, bricks and the like.
In the related art, when the expansion bolts need to be installed, workers beat the expansion bolts into holes on the ground or the wall surface, screw nuts on the expansion bolts by using a wrench, the bolts outwards move, the metal sleeves on the expansion bolts are kept static, at the moment, the bottoms of the bolts expand the fixing sleeves, so that the fixing sleeves are expanded to fill the whole holes, and at the moment, the expansion bolts are not easy to withdraw from the holes, so that the corresponding fixing effect is realized.
With respect to the related art described above, the inventors consider that there is less contact points of the current fixing sleeve with the inner side wall of the hole when the fixing sleeve of the expansion bolt is expanded, and there is room for improvement.
Disclosure of Invention
In order to enable the contact points between the fixing sleeve and the inner side wall of the hole to be more when the fixing sleeve is expanded, the utility model provides the fixing sleeve of the expansion bolt.
The utility model provides a fixing sleeve of an expansion bolt, which adopts the following technical scheme:
the utility model provides an expansion bolts's fixed cover, includes the cover body, set up the grafting groove that is used for supplying the bolt to peg graft on the cover body, be equipped with a plurality of first inflation holes along grafting groove length direction interval on the lateral wall of grafting groove, be equipped with a plurality of second inflation holes along first inflation hole length direction interval on the lateral wall of first inflation hole, form a plurality of horizontal lugs and a plurality of longitudinal lug between second inflation hole and the second inflation hole.
Through adopting above-mentioned technical scheme, the staff will fix the cover and peg graft in subaerial or the hole on the wall, when staff control bolt was pegged graft to the jack-in inslot, first inflation hole and second inflation hole all took place to expand for horizontal lug and vertical lug all with hole inside wall joint, fixed sheathe in this moment with the hole inside wall the contact point more, improved expansion bolt's fixed effect.
Optionally, a plurality of fixing grooves are arranged on the side wall of the sleeve body at intervals along the length direction of the sleeve body.
Through adopting above-mentioned technical scheme, when fixed cover was expanded, the setting of fixed slot made fixed cover be difficult for pulling out from downthehole after expanding to make fixed cover in downthehole fixed effect better.
Optionally, a rib is disposed in the fixing groove, and the height of the rib is greater than the depth of the fixing groove.
Through adopting above-mentioned technical scheme, when fixed cover is expanded, the bead is close to the direction that is close to the hole inside wall, bead and hole inside wall joint for fixed cover is gone up and the contact point of hole inside wall further increases, thereby makes fixed cover be difficult for downthehole pull out, has further improved expansion bolts's fixed effect.
Optionally, a guide hole is formed in a side wall of one end of the sleeve body along the length direction.
Through adopting above-mentioned technical scheme, when the bolt grafting in the jack groove, the setting of guide hole makes the fixed cover atress back more easily expand to make expansion bolts's expansion force increase.
Optionally, an arc surface is arranged at one end of the sleeve body provided with the guide hole.
By adopting the technical scheme, the arc-shaped surface has a certain guiding effect, so that a worker can conveniently insert the fixing sleeve into the inserting groove, and the fixing sleeve can be conveniently installed.
Optionally, one end of the rib facing the direction of the arc surface is obliquely provided with a guide surface, and the guide surface faces the direction away from the sleeve body.
Through adopting above-mentioned technical scheme, under the effect of guide surface, the staff can be comparatively convenient peg graft fixed cover in downthehole to the staff of being convenient for installs the operation to fixed cover.
Optionally, a plurality of limiting edges are arranged on the side wall of one end, far away from the guide hole, of the sleeve body along the circumferential direction of the sleeve body.
Through adopting above-mentioned technical scheme, when the bolt is pegged graft in the jack groove, spacing arris and hole inside wall butt have certain clearance with hole inside wall this moment fixed cover lateral wall to fixed cover takes place to expand.
Optionally, a base is arranged at one end of the sleeve body, which is close to the limiting edge.
Through adopting above-mentioned technical scheme, the setting of base has increased the atress area of fixed cover, and the staff of being convenient for carries out the application of force to fixed cover to make fixed cover pegging graft in downthehole, thereby the staff of being convenient for carries out operation to fixed cover and handles.
In summary, the present utility model includes at least one of the following beneficial technical effects:
1. the arrangement of the first expansion hole and the second expansion hole enables the transverse lug and the longitudinal lug to be clamped with the inner side wall of the hole when the fixed sleeve is expanded, so that the contact points between the fixed sleeve and the inner side wall of the hole are more when the fixed sleeve is expanded, and the fixing effect of the expansion bolt can be improved;
2. the arrangement of the guide hole enables the fixing sleeve to be easier to expand after being stressed, so that the expansion effect of the expansion bolt is better;
3. the setting of guide surface is convenient for the staff to peg graft fixed cover in downthehole to the staff of being convenient for installs the operation to fixed cover.
Drawings
FIG. 1 is a schematic view of the structure of a fixing sleeve of an expansion bolt according to an embodiment of the present utility model;
fig. 2 is a schematic view of the structure of a fixing sleeve of an expansion bolt according to an embodiment of the present utility model.
Reference numerals illustrate: 1. a sleeve body; 2. a plug-in groove; 3. a first expansion hole; 4. a second expansion hole; 5. a transverse tab; 6. a longitudinal tab; 7. a fixing groove; 8. a rib; 9. a guide hole; 10. an arc surface; 11. a guide surface; 12. limit edges; 13. a base; 14. and (3) a guide surface.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-2.
The embodiment of the utility model discloses a fixing sleeve of an expansion bolt. Referring to fig. 1 and 2, the fixing sleeve of the expansion bolt comprises a sleeve body 1, and a plugging groove 2 for plugging the bolt is formed in the sleeve body 1 along the length direction of the sleeve body 1, so that the sleeve body 1 integrally forms a hollow cylinder. The side wall of the inserting groove 2 is provided with a plurality of first expansion holes 3 at intervals along the depth direction of the inserting groove 2, the first expansion holes 3 are strip-shaped holes, the length direction of the first expansion holes 3 is parallel to the length direction of the sleeve body 1, the penetrating direction of the first expansion holes 3 is perpendicular to the depth direction of the inserting groove 2, the first expansion holes 3 penetrate through the outer side wall of the sleeve body 1, and the plurality of first expansion holes 3 are arranged at intervals to form a row.
In this embodiment, a plurality of rows of first expansion holes 3 are formed on the outer sidewall of the sleeve body 1, and the plurality of rows of first expansion holes 3 are relatively parallel to each other. A plurality of second expansion holes 4 are formed in the side wall of the first expansion hole 3 facing the other row of first expansion holes 3, the second expansion holes 4 are strip-shaped holes, the plurality of second expansion holes 4 are arranged along the length direction of the first expansion holes 3, the penetrating direction of the second expansion holes 4 is consistent with the penetrating direction of the first expansion holes 3, the length direction of the second expansion holes 4 is perpendicular to the length direction of the sleeve body 1, the plurality of first expansion holes 3 are opposite and staggered to form a plurality of transverse lugs 5 and a plurality of longitudinal lugs 6 with the plurality of second expansion holes 4, the length direction of the transverse lugs 5 is parallel to the length direction of the second expansion holes 4, and the length direction of the longitudinal lugs 6 is parallel to the length direction of the first expansion holes 3.
When the expansion bolts need to be installed, workers install the sleeve body 1 in holes on the ground or a wall surface and insert the bolts into the inserting grooves 2, at the moment, the sleeve body 1 is stressed, the first expansion holes 3 and the second expansion holes 4 are expanded, the transverse lugs 5 and the longitudinal lugs 6 are moved towards the direction close to the inner side walls of the holes, at the moment, the transverse lugs 5 and the longitudinal lugs 6 are expanded, the sleeve body 1 can be fully expanded in the whole holes, and therefore the sleeve body 1 is more in contact points with the inner side walls of the holes when being expanded, so that the fixing effect of the expansion bolts is improved. The sleeve body 1 is provided with the base 13 along the side wall of one end part in the length direction, the base 13 is sleeved on the sleeve body 1, the stress area of the sleeve body 1 is increased by the aid of the base 13, workers can conveniently carry out subsequent operation on the sleeve body 1, and meanwhile, the sleeve body 1 can be placed stably through the base 13.
A plurality of limit edges 12 are welded on the outer side wall of one end, close to the base 13, of the sleeve body 1 at intervals in the circumferential direction, the limit edges 12 extend along the length direction of the sleeve body 1, when the sleeve body 1 is inserted into a hole, the limit edges 12 are abutted with the inner side wall of the hole, and a certain space is reserved between the outer side wall of the sleeve body 1 and the inner side wall of the hole so that the sleeve body 1 can expand. One end of the limiting edge 12 far away from the base 13 is obliquely provided with a guide surface 14, the guide surface 14 faces away from the sleeve body 1, and when the sleeve body 1 is installed in a hole, the guide surface 14 on the limiting edge 12 can be abutted with a plane where an opening of the hole is located, so that a worker can conveniently insert the sleeve body 1 into the hole on the wall body or the ground.
A plurality of fixing grooves 7 are arranged on the outer side wall of the sleeve body 1 at intervals along the length direction of the sleeve body 1, and the depth direction of the fixing grooves 7 is perpendicular to the length direction of the sleeve body 1. The rib 8 is welded in the fixed slot 7, the rib 8 extends along the length direction of the sleeve body 1, the height of the rib 8 is greater than the depth of the fixed slot 7, and a plurality of ribs 8 are arranged along the length direction of the sleeve body 1 at intervals to form a row, a plurality of rows are arranged on the outer side wall of the sleeve body 1 along the circumferential direction of the sleeve body 1, one end of the rib 8, which faces the base 13, forms a certain included angle with the fixed slot 7, when the bolt is inserted into the inserting slot 2, the sleeve body 1 is stressed to expand, dust on the inner side wall of the hole can fall between the fixed slot 7 and the rib 8, so that the sleeve body 1 is not easy to move relative to the hole, the rib 8 is clamped with the inner side wall of the hole, the contact point between the sleeve body 1 and the inner side wall of the hole is further increased, and the fixing effect of the expansion bolt is further improved. The one end that keeps away from spacing arris 12 on bead 8 all slopes to be provided with guide surface 11, and guide surface 11 is towards the direction of keeping away from cover body 1, and when cover body 1 pegged graft in the downthehole, guide surface 11 and the terminal surface butt at hole opening place to the staff will overlap body 1 peg graft in the downthehole, further the installation of the cover body 1 of being convenient for.
The one end that keeps away from base 13 on the cover body 1 is provided with arcwall face 10 to make the overall shape of the one end that keeps away from base 13 on the cover body 1 be the bench, under arcwall face 10's guiding action, the cover body 1 can comparatively convenient grafting to downthehole, thereby the staff of being convenient for carries out the installation work to the cover body 1. The guide hole 9 is formed in the side wall of one end part of the sleeve body 1, which is provided with the arc-shaped surface 10, the depth direction of the guide hole 9 is perpendicular to the depth direction of the inserting groove 2, the guide hole 9 is communicated with the inserting groove 2 and penetrates through the outer side wall of the sleeve body 1, when a bolt is inserted into the inserting groove 2, the sleeve body 1 has stronger expansion force due to the arrangement of the guide hole 9, so that the sleeve body 1 is more easily expanded after being stressed, and the fixing effect of the sleeve body 1 in the hole is improved.
The implementation principle of the fixed sleeve of the expansion bolt provided by the embodiment of the utility model is as follows: when the expansion bolts need to be installed, workers plug the sleeve body 1 into holes on the wall surface or the ground, and control bolts are plugged into the plugging grooves 2, so that the first expansion holes 3 and the second expansion holes 4 are expanded, the transverse lugs 5 and the longitudinal lugs 6 are clamped with the inner side walls of the holes, the ribs 8 also move to be clamped with the inner side walls of the holes, the sleeve body 1 is fully expanded into the whole holes, the sleeve body 1 is more in contact points with the inner side walls of the holes when being expanded, and the fixing effect of the expansion bolts can be improved.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (8)
1. The utility model provides an expansion bolts's fixed cover which characterized in that: including the cover body (1), set up on the cover body (1) and be used for supplying the grafting groove (2) of screw grafting, be equipped with a plurality of first expansion holes (3) along grafting groove (2) depthwise spacing on the lateral wall of grafting groove (2), be equipped with a plurality of second expansion holes (4) along grafting groove (2) depthwise spacing on the lateral wall of first expansion holes (3), form a plurality of transverse lug (5) and a plurality of longitudinal lug (6) between second expansion holes (4) and second expansion holes (4).
2. The set of expansion bolts according to claim 1, wherein: a plurality of fixing grooves (7) are formed in the side wall of the sleeve body (1) at intervals along the length direction of the sleeve body (1).
3. The set of expansion bolts according to claim 2, wherein: and a rib (8) is arranged in the fixing groove (7), and the height of the rib (8) is greater than the depth of the fixing groove (7).
4. The set of expansion bolts according to claim 1, wherein: a guide hole (9) is formed in the side wall of one end of the sleeve body (1) along the length direction.
5. The set of expansion bolts according to claim 4, wherein: one end of the sleeve body (1) provided with a guide hole (9) is provided with an arc-shaped surface (10).
6. A fixing sleeve for an expansion bolt according to claim 3, wherein: one end of the convex rib (8) facing the direction of the arc-shaped surface (10) is obliquely provided with a guide surface (11), and the guide surface (11) faces the direction far away from the sleeve body (1).
7. The set of expansion bolts according to claim 4, wherein: a plurality of limiting edges (12) are arranged on the side wall of one end, far away from the guide hole (9), of the sleeve body (1) along the circumferential direction of the sleeve body (1).
8. The set of expansion bolts of claim 7, wherein: one end of the sleeve body (1) close to the limiting edge (12) is provided with a base (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320264904.XU CN219655042U (en) | 2023-02-08 | 2023-02-08 | Expansion bolt's fixed cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320264904.XU CN219655042U (en) | 2023-02-08 | 2023-02-08 | Expansion bolt's fixed cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219655042U true CN219655042U (en) | 2023-09-08 |
Family
ID=87858206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320264904.XU Active CN219655042U (en) | 2023-02-08 | 2023-02-08 | Expansion bolt's fixed cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219655042U (en) |
-
2023
- 2023-02-08 CN CN202320264904.XU patent/CN219655042U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |