CN201377494Y - Conical cap internal expansion flat head bolt - Google Patents
Conical cap internal expansion flat head bolt Download PDFInfo
- Publication number
- CN201377494Y CN201377494Y CN200920069818U CN200920069818U CN201377494Y CN 201377494 Y CN201377494 Y CN 201377494Y CN 200920069818 U CN200920069818 U CN 200920069818U CN 200920069818 U CN200920069818 U CN 200920069818U CN 201377494 Y CN201377494 Y CN 201377494Y
- Authority
- CN
- China
- Prior art keywords
- screw rod
- sleeve pipe
- conical cap
- awl cap
- flat head
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Revetment (AREA)
Abstract
The utility model relates to a conical cap internal expansion flat head bolt, which comprises a screw rod and a casing, upper part of the screw rod is provided with a screwthread section, upper part of the casing is provided with a longitudinal trough groove. The flat head bolt also includes a conical cap, one end of the conical cap is a big head, the other end of the conical cap is a small head, a middle hole of the conical cap is provided with internal screw threads. Inner wall of the casing is provided with screw threads. The tail of the screw rod is a flat head, the screw rod is connected to the casing through the screwthread section at upper part of the screw rod, the conical cap is connected to upper part of the screwthread section of the screw rod through the internal screw threads, and the small head of the conical cap is connected with upper end of the casing. The conical cap internal expansion flat head bolt has simple structure and reduces parts, therefore, relevant materials are decreased and production cost is reduced. The conical cap internal expansion flat head bolt is more solid, convenient, and fast on installation and using, and has the advantages of not taking up exterior space, being beautiful and practical, and being easy to disassemble.
Description
Technical field
The utility model relates to fastener bolt, particularly a kind of flush bolt that expands in the cap of boring.
Background technique
Traditional expansion bolt generally has an interior bar and overcoat, and the afterbody of interior bar is a up big and down small conical section, and a thread section is arranged at the top of interior bar, and nut, elastic washer and plain washer are installed on this thread section; The bottom of overcoat is provided with vertical groove.When using EXPANSION ANCHOR BOLTS, on body of wall, punch earlier, again the afterbody of EXPANSION ANCHOR BOLTS is filled in the hole, put nuts and washers then EXPANSION ANCHOR BOLTS is tightened, the conical section of bar afterbody struts vertical groove of overcoat bottom in this moment, thereby EXPANSION ANCHOR BOLTS is fastened in the body of wall hole.
The part of this EXPANSION ANCHOR BOLTS is more, and the material of usefulness is just many, causes cost of production higher, and is installing and using all cumbersome.
The model utility content
Task of the present utility model provides the flush bolt that expands in a kind of improved awl cap, and it has solved, and existing EXPANSION ANCHOR BOLTS part is more, cost of production is higher, install and use cumbersome problem.
Technical solution of the present utility model is as follows:
Bloated flush bolt in a kind of awl cap, it comprises screw rod and sleeve pipe, a thread section is arranged at the top of screw rod, the top of sleeve pipe is provided with vertical groove, it is characterized in that, described flush bolt also comprises an awl cap, one end of this awl cap is a major part, and the other end is the microcephaly, and the mesopore of awl cap is provided with internal thread;
The inwall of described sleeve pipe is provided with screw thread;
The afterbody of described screw rod is a tack, and screw rod is screwed onto in the sleeve pipe by the thread section on its top, and the awl cap is screwed onto the top of screw flight section by its internal thread, and the microcephaly of awl cap engages with the upper end portion of sleeve pipe.
The utility model is taked following further technical measures:
Described screw rod is equipped with plain washer on the shaft between its tack and the sleeve pipe underpart.
Described screw rod is equipped with elastic washer on the shaft between its tack and the sleeve pipe underpart.
Described screw rod is equipped with plain washer and elastic washer on the shaft between its tack and the sleeve pipe underpart.
Vertical groove on described sleeve pipe top is several vertical grooves.
The length dimension of several vertical grooves on described sleeve pipe top is unequal.
The flush bolt that expands in the awl cap of the present utility model is compared with traditional expansion bolt, the utility model is simple in structure, has reduced part, has therefore reduced associated materials, reduced cost of production, particularly advocated the principle of economizing, save under the situation of resource and seem particularly important as far as possible in current society.
Expand in the awl cap of the present utility model flush bolt install and use aspect more firm, convenient, fast, screw rod is not pulled out metope or ground and forms obstacle during use.The utility model also has the advantage that does not take space outerpace, both artistic and practical, convenient disassembly.
Description of drawings
Accompanying drawing is a kind of structural representation of boring the flush bolt that expands in the cap of the present utility model.
Number in the figure:
1 is screw rod, and 2 is sleeve pipe, and 3 are the awl cap, and 4 is plain washer, and 5 is elastic washer, and 11 is the screw flight section, and 21 is the vertical groove of sleeve pipe, and 31 are awl cap internal thread.
Embodiment
Describe a preferred embodiment of the present utility model in detail below in conjunction with accompanying drawing.
Referring to accompanying drawing, the flush bolt that expands in a kind of awl cap of the present utility model is equipped with screw rod 1, sleeve pipe 2 and awl cap 3.
Screw rod 1 has a shaft, and a thread section 11 is arranged at the top of screw rod 1, and the afterbody of screw rod 1 is a tack 12.
The top of sleeve pipe 2 is provided with vertical groove 21, and this vertical groove 21 can be a plurality of vertical grooves, and the length dimension of these a plurality of vertical grooves 21 can be unequal.The inwall of sleeve pipe 2 is provided with screw thread.
One end of awl cap 3 is major parts, and the other end is the microcephaly.The mesopore of awl cap 3 is provided with internal thread 31.
Screw rod 1 is screwed onto in the sleeve pipe 2 by the thread section 11 on its top, and awl cap 3 is screwed onto the top of screw flight section 11 by its internal thread 31, and the microcephaly of awl cap 3 engages with the upper end portion of sleeve pipe 2.
As shown in FIG., screw rod 1 is equipped with plain washer 4 and elastic washer 5 on the shaft between its tack 12 and sleeve pipe 2 underparts.Screw rod 1 also can only be equipped with plain washer 4 or elastic washer 5 on the shaft between its tack 12 and sleeve pipe 2 underparts.
When using this bolt, will be equipped with the screw rod and the sleeve pipe of awl cap insert in the body of wall hole, rotating screw bolt tack, the sleeve pipe upper end portion i.e. groove distending along the longitudinal, forms swelling state, makes this bolton in the body of wall hole.
Certainly, those skilled in the art in the present technique field will be appreciated that, the foregoing description only is to be used for illustrating the utility model, and be not with opposing qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in the scope of the utility model claim conversion, the modification of the foregoing description.
Claims (6)
1. bore the flush bolt that expands in the cap for one kind, it comprises screw rod and sleeve pipe, and a thread section is arranged at the top of screw rod, the top of sleeve pipe is provided with vertical groove, it is characterized in that, described flush bolt also comprises an awl cap, one end of this awl cap is a major part, and the other end is the microcephaly, and the mesopore of awl cap is provided with internal thread;
The inwall of described sleeve pipe is provided with screw thread;
The afterbody of described screw rod is a tack, and screw rod is screwed onto in the sleeve pipe by the thread section on its top, and the awl cap is screwed onto the top of screw flight section by its internal thread, and the microcephaly of awl cap engages with the upper end portion of sleeve pipe.
2. bloated flush bolt is characterized in that described screw rod is equipped with plain washer on the shaft between its tack and the sleeve pipe underpart in the awl cap according to claim 1.
3. bloated flush bolt is characterized in that described screw rod is equipped with elastic washer on the shaft between its tack and the sleeve pipe underpart in the awl cap according to claim 1.
4. bloated flush bolt is characterized in that described screw rod is equipped with plain washer and elastic washer on the shaft between its tack and the sleeve pipe underpart in the awl cap according to claim 1.
5. bloated flush bolt is characterized in that vertical groove on described sleeve pipe top is several vertical grooves in the awl cap according to claim 1.
6. bloated flush bolt is characterized in that the length dimension of several vertical grooves on described sleeve pipe top is unequal in the awl cap according to claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920069818U CN201377494Y (en) | 2009-04-02 | 2009-04-02 | Conical cap internal expansion flat head bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920069818U CN201377494Y (en) | 2009-04-02 | 2009-04-02 | Conical cap internal expansion flat head bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201377494Y true CN201377494Y (en) | 2010-01-06 |
Family
ID=41517602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920069818U Expired - Fee Related CN201377494Y (en) | 2009-04-02 | 2009-04-02 | Conical cap internal expansion flat head bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201377494Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246675A (en) * | 2015-06-10 | 2016-12-21 | 上海振纯新型建材有限公司 | A kind of expansion bolt with stability |
| CN108867677A (en) * | 2018-07-26 | 2018-11-23 | 中交航局第三工程有限公司 | Facilitate expansible stopper and the application of installing and dismounting |
-
2009
- 2009-04-02 CN CN200920069818U patent/CN201377494Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246675A (en) * | 2015-06-10 | 2016-12-21 | 上海振纯新型建材有限公司 | A kind of expansion bolt with stability |
| CN106246675B (en) * | 2015-06-10 | 2023-10-27 | 上海振纯新型建材有限公司 | Expansion bolt with stability |
| CN108867677A (en) * | 2018-07-26 | 2018-11-23 | 中交航局第三工程有限公司 | Facilitate expansible stopper and the application of installing and dismounting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201599289U (en) | Expansion screw with convenient disassembly | |
| CN201818611U (en) | Pressing core-pulling type wedge screw | |
| CN108643951B (en) | Mining self-drilling umbrella-shaped grouting anchor rod and anchoring method | |
| CN203532467U (en) | Combined bolt | |
| CN201377494Y (en) | Conical cap internal expansion flat head bolt | |
| CN201695520U (en) | Expansion anchor bolt sleeve for wallboard installation | |
| CN201679510U (en) | Drilling-injecting-anchoring integrated anchor rod | |
| CN202192566U (en) | Clamp for fixing workpiece | |
| CN201433992Y (en) | Double-positioning bolt | |
| CN202900298U (en) | Anchor rod | |
| CN210715466U (en) | Detachable and reusable expansion bolt | |
| CN201187501Y (en) | Multi-point expansion bolt | |
| CN102140925B (en) | Expansion type high-strength anchor rod | |
| CN201635750U (en) | Novel resin anchor-rod installer | |
| CN201605671U (en) | Pull-resistance pre-buried threaded fastening element positioning sleeve pipe | |
| CN207044108U (en) | A kind of dismounting component for taper bolt | |
| CN203515629U (en) | Anchor rod capable of conducting continuous fastening | |
| CN201007308Y (en) | Novel expansive crew bolt | |
| CN205715168U (en) | A kind of efficiently fastening bolt | |
| CN203097291U (en) | Reinforcing and counter-pulling device of building construction formwork | |
| CN202627508U (en) | Mandrel adjustable support rod | |
| CN202194907U (en) | Internally-fastening demounting type expansion bolt | |
| CN202645432U (en) | Anchor rod drill bit | |
| CN205683021U (en) | A kind of screw-type quick dismounting hinge | |
| CN206449085U (en) | A kind of two-part screw rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100106 Termination date: 20110402 |