CN105134724A - Novel expansion screw - Google Patents
Novel expansion screw Download PDFInfo
- Publication number
- CN105134724A CN105134724A CN201510621336.4A CN201510621336A CN105134724A CN 105134724 A CN105134724 A CN 105134724A CN 201510621336 A CN201510621336 A CN 201510621336A CN 105134724 A CN105134724 A CN 105134724A
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- screw rod
- external diameter
- novel expansion
- end external
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Abstract
The invention discloses a novel expansion screw which comprises a first screw rod, a second screw rod and a third screw rod, wherein the first screw rod is arranged to be truncated cone-shaped, and the outer diameter of the upper end of the first screw rod is larger than that of the lower end of the first screw rod; the second screw rod is arranged to be cylindrical; a line-shaped tank body is arranged on the third screw rod; the tank body divides the third screw rod into a left screw rod and a right screw rod which are symmetrical; a plurality of symmetrical bulges are arranged on both the left screw rod and the right screw rod. Through the manner, the novel expansion screw is convenient and quick to mount, high in bearing capacity after mounting, long in service life and good in use effect.
Description
Technical field
The present invention relates to five metals manufacture field, particularly relate to a kind of Novel expansion bolt.
Background technique
In present stage daily life, setscrew is usually used to fixing electrical equipment or curtain etc., television support is fixed to use setscrew, because the bearing capacity of setscrew is limited, along with the accumulation of time, substantially after 3 to five years, often can expand the phenomenon that screw comes off, at this moment TV is fixed with regard to needing to reuse new setscrew, and the joint of new setscrew and wall can not be selected in the position of originally old setscrew, therefore, the angle of TV may be caused or highly change, affect eye-angle or height that Consumer sees TV to a certain extent.
Summary of the invention
The technical problem that the present invention mainly solves be to provide a kind of install convenient, install after higher, the better Novel expansion bolt of longer service life, using effect of bearing capacity.
For solving the problems of the technologies described above, the invention provides a kind of Novel expansion bolt, comprise: the first screw rod, the second screw rod and the 3rd screw rod, described first screw rod is arranged to frustoconic shape, and the upper end external diameter of described first screw rod is greater than the lower end external diameter of described first screw rod, described second screw rod is arranged to cylindrical, and described 3rd screw rod is provided with yi word pattern cell body, 3rd screw rod is divided into symmetrical left screw rod and right screw rod by described cell body, and described left screw rod and right screw rod are all provided with multiple symmetrical projection.
In a preferred embodiment of the present invention, the upper end external diameter of described 3rd screw rod is greater than the lower end external diameter of described 3rd screw rod.
In a preferred embodiment of the present invention, the lower end external diameter of described first screw rod, the upper end external diameter of described 3rd screw rod are identical with the external diameter of described second screw rod.
In a preferred embodiment of the present invention, described at least one, projection is provided with barb, and triangle is arranged to by described barb, and the height of the upper end of described barb is higher than the height of the upper end of described projection.
The invention has the beneficial effects as follows: Novel expansion bolt installation of the present invention is convenient, the rear bearing capacity of installation is higher, longer service life, using effect are better.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the structural representation of Novel expansion bolt one of the present invention preferred embodiment.
Embodiment
Be clearly and completely described to the technological scheme in the embodiment of the present invention below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, the embodiment of the present invention comprises:
A kind of Novel expansion bolt, comprise: the first screw rod 1, second screw rod 2 and the 3rd screw rod 3, described first screw rod 1 is arranged to frustoconic shape, and the upper end external diameter of described first screw rod 1 is greater than the lower end external diameter of described first screw rod 1, described second screw rod 2 is arranged to cylindrical, described 3rd screw rod 3 is provided with yi word pattern cell body 33, and the 3rd screw rod 3 is divided into symmetrical left screw rod 31 and right screw rod 32 by described cell body 33, and described left screw rod 31 and right screw rod 32 are all provided with multiple symmetrical projection 34.
Cell body 33 makes the 3rd screw rod 3 have certain elasticity, be convenient to setscrew be squeezed on the objects such as body of wall, and setscrew is once squeeze among body of wall, multiple symmetrical projection 34 can under the effect of body of wall pressure, produce the active force outwards expanded, and body of wall can think to multiple protruding 34 1 the active force that cell body 33 is gathered, thus ensure that setscrew and body of wall strong bonded, ensure that setscrew has higher bearing capacity.
The upper end external diameter of described 3rd screw rod 3 is greater than the lower end external diameter of described 3rd screw rod 3.Namely ensure that setscrew can be encased in body of wall easily to go, can ensure that again setscrew has very high bearing capacity.
The lower end external diameter of described first screw rod 1, the upper end external diameter of described 3rd screw rod 3 are identical with the external diameter of described second screw rod 2.
Described at least one, protruding 34 are provided with barb 35, and triangle is arranged to by described barb 35, and the height of the upper end of described barb 35 is higher than the height of the described upper end of protruding 34.In the present embodiment, two symmetrical projections 34 are provided with barb 35, and namely barb 35 ensures that setscrew can be encased in body of wall easily and go, and can ensure that again setscrew has very high bearing capacity, longer service life, using effect is better.
Be different from prior art, Novel expansion bolt installation of the present invention is convenient, the rear bearing capacity of installation is higher, longer service life, using effect are better.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (4)
1. a Novel expansion bolt, it is characterized in that, comprise: the first screw rod, the second screw rod and the 3rd screw rod, described first screw rod is arranged to frustoconic shape, and the upper end external diameter of described first screw rod is greater than the lower end external diameter of described first screw rod, described second screw rod is arranged to cylindrical, and described 3rd screw rod is provided with yi word pattern cell body, 3rd screw rod is divided into symmetrical left screw rod and right screw rod by described cell body, and described left screw rod and right screw rod are all provided with multiple symmetrical projection.
2. Novel expansion bolt according to claim 1, is characterized in that, the upper end external diameter of described 3rd screw rod is greater than the lower end external diameter of described 3rd screw rod.
3. Novel expansion bolt according to claim 1, is characterized in that, the lower end external diameter of described first screw rod, the upper end external diameter of described 3rd screw rod are identical with the external diameter of described second screw rod.
4. Novel expansion bolt according to claim 1, is characterized in that, described at least one, projection is provided with barb, and triangle is arranged to by described barb, and the height of the upper end of described barb is higher than the height of the upper end of described projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510621336.4A CN105134724A (en) | 2015-09-28 | 2015-09-28 | Novel expansion screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510621336.4A CN105134724A (en) | 2015-09-28 | 2015-09-28 | Novel expansion screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105134724A true CN105134724A (en) | 2015-12-09 |
Family
ID=54720221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510621336.4A Pending CN105134724A (en) | 2015-09-28 | 2015-09-28 | Novel expansion screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105134724A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2285844Y (en) * | 1996-01-26 | 1998-07-08 | 薛俊生 | Plastic expansion pipe with protrusion rear end |
| US20030108397A1 (en) * | 2000-05-30 | 2003-06-12 | Hartmut Hoppe | Expansion anchor which can be fixed to a panel-type building material |
| CN1682036A (en) * | 2002-08-08 | 2005-10-12 | 特纳知识产权有限公司 | Fixing plug |
-
2015
- 2015-09-28 CN CN201510621336.4A patent/CN105134724A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2285844Y (en) * | 1996-01-26 | 1998-07-08 | 薛俊生 | Plastic expansion pipe with protrusion rear end |
| US20030108397A1 (en) * | 2000-05-30 | 2003-06-12 | Hartmut Hoppe | Expansion anchor which can be fixed to a panel-type building material |
| CN1682036A (en) * | 2002-08-08 | 2005-10-12 | 特纳知识产权有限公司 | Fixing plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151209 |