CN103423267B - Expansion screw for launching - Google Patents
Expansion screw for launching Download PDFInfo
- Publication number
- CN103423267B CN103423267B CN201210160982.1A CN201210160982A CN103423267B CN 103423267 B CN103423267 B CN 103423267B CN 201210160982 A CN201210160982 A CN 201210160982A CN 103423267 B CN103423267 B CN 103423267B
- Authority
- CN
- China
- Prior art keywords
- screw
- expansion
- bullet
- setscrew
- neck
- 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
- 239000007787 solid Substances 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Bolts, Nuts, And Washers (AREA)
Abstract
The expansion screw for launching consists of a nut (1), a screw rod (2), an expansion fixing barrel (3), an expansion barrel wall (4), an expansion barrel wall crack (5), a screw bullet (6), a threadless screw rod (7), a wall rod cavity (8), a screw rod expansion neck (9), a bullet fixing rod stop (10), a head and neck cavity (11), a screw rod expansion head (12) and a thin rod (13). The front end of the expansion screw for launching is additionally provided with the screw bullet (6) which can facilitate the expansion screw to shoot into an embedded object, and the rear part of the screw bullet (6) is also provided with the thin rod (13) and the bullet fixing rod stop (10), so that the shot expansion screw not only can play a bearing function as a known expansion screw, but also does not influence the embedding solidity of the screw bullet (6), and the fixing capacity of the expansion screw is increased. The expansion screw for launching is simple to manufacture, strong in operability, low in cost and obvious in effect.
Description
Technical field
The present invention relates to a kind of transmitting setscrew, belong to instrument and ironware technical field.
Background technique
Need first electricity consumption to be drilled on Inset during known setscrew use to make a call to a hole, then could install, comparatively waste time and energy, more inconvenient when installing aloft, even also have certain danger.
Summary of the invention
In order to overcome known setscrew time install time the difficult problem that comparatively wastes time and energy.How to allow setscrew promptly be mounted in practical operation to be badly in need of the great difficult problem solved.
The technical solution adopted for the present invention to solve the technical problems is: transmitting setscrew by nut, lead screw, the solid cylinder of expansion, expansion barrel, expansion barrel crack, screw bullet, to fix span without silk screw rod, wall bar chamber, screw expansion neck, bullet, neck chamber, screw expansion head, thin bar form.Hexagon outside nut, central, circular, inside has screw thread, with the threaded engagement in lead screw, nut and lead screw with known setscrew, for fixed object.The solid cylinder that expands is without the metal cylinder outside silk screw rod, lead screw by nut screw outwards drop time, the frictional force consolidated between cylinder and Inset that expands can prevent whole setscrew from being pulled out.The solid cylinder of expansion and expansion barrel connect together, all identical with the diameter of screw bullet rear end.The vertical wall thickness of expansion barrel increases gradually, when screw expansion head is pulled backward with screw expansion neck, by expansion barrel spreading, fastening screw screw mandrel, without silk screw rod, screw expansion neck composition screw rod while, whole setscrew is tightly locked in Inset.Expansion barrel crack is that expansion barrel spreading provides spreading point, adds the risen performance of setscrew.Screw warhead form is with known bullet head, and steel, front end is tapering, and rear end is circle slightly, facilitates whole setscrew under external force, has huge kinetic energy, to enter in Inset smoothly.Without the load-bearing member that silk screw rod is whole setscrew, be positioned at the solid cylinder that expands, front end connecting screw rod expansion neck, rear end connecting screw bar.Wall bar chamber is the cavity between expansion barrel and screw expansion neck, so that screw expansion head within it moves, by expansion barrel spreading.In order to prevent screw bullet from sliding out from bullet setscrew, protrude the thin bar that an end expands at screw bullet rear, the expanding of thin bar end is bullet and fixes span.Cavity between thin bar and screw expansion neck is neck chamber, after preventing screw bullet from embedding Inset, due to pulling and Panasonic of screw expansion head, reduces the tight embedding of whole setscrew.
Beneficial effect of the present invention is, transmitting setscrew has added the screw bullet that setscrew can be facilitated to inject Inset due to front end, screw warhead form is with known bullet head, front end is tapering, rear end is circle slightly, facilitate whole setscrew under external force, there is huge kinetic energy, to enter in Inset smoothly.Screw bullet rear also has thin bar and fixing span, and the cavity between thin bar and screw expansion neck is neck chamber, after preventing screw bullet from embedding Inset, due to pulling and Panasonic of screw expansion head, reduces the tight embedding of whole setscrew.The vertical wall thickness of expansion barrel increases gradually, when screw expansion head is pulled backward with screw expansion neck, by expansion barrel spreading, fastening screw screw mandrel, without silk screw rod, screw expansion neck composition screw rod while, whole setscrew is tightly locked in Inset.Make the setscrew injected not only can play weight-bearing function by setscrew as is well known, and do not affect the embedding solidity of bullet, add the crystallized ability of setscrew.Transmitting makes simple, workable, with low cost of setscrew, successful.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 is the overall structure schematic diagram of transmitting setscrew of the present invention.
Fig. 2 is the vertical section structure schematic diagram of transmitting setscrew of the present invention.
1. nuts, 2. lead screw in figure, 3. expand solid cylinder, 4. expansion barrel, 5. expansion barrel crack, 6. screw bullet, and 7. without silk screw rod, 8. wall bar chamber, 9. screw expansion neck, 10. span fixed by bullet, 11. neck chambeies, 12. screw expansion heads, 13. thin bars.
Embodiment
Embodiment one, a kind of transmitting setscrew, by nut 1, lead screw 2, expand solid cylinder 3, expansion barrel 4, expansion barrel crack 5, without silk screw rod 7, wall bar chamber 8, screw expansion neck 9, screw expansion head 12 forms, nut 1 central, circular, inside there is screw thread, with the threaded engagement in lead screw 2, the solid cylinder 3 that expands is without the metal cylinder outside silk screw rod 7, lead screw 2 by nut 1 screw outwards drop time, the solid frictional force between cylinder 3 and Inset that expands can prevent whole setscrew from being pulled out, without silk screw rod 7 front end connecting screw rod expansion neck 9, rear end connecting screw bar 2.Wall bar chamber 8 is the cavity between expansion barrel 4 and screw expansion neck 9, so that screw expansion head 12 within it moves, by expansion barrel 4 spreading, also comprise setscrew front end and be provided with the screw bullet 6 that setscrew can be facilitated to inject Inset, screw warhead form is with known bullet head, steel, front end is tapering, and rear end is circle slightly, facilitates whole setscrew under external force, there is huge kinetic energy, to enter in Inset smoothly.
Embodiment two, and on the basis of embodiment one, restriction nut 1 and lead screw 2 are known setscrew further.
Embodiment three, the basis of embodiment one limit Hexagon outside nut 1 further, central, circular.
Embodiment four, on the basis of embodiment one, the thin bar 13 that an end expands is protruded at further restriction screw bullet 6 rear, thin bar 13 end expand for span 10 fixed by bullet, cavity between thin bar 13 and screw expansion neck 9 is neck chamber 11, after preventing screw bullet 6 from embedding Inset, due to pulling and Panasonic of screw expansion head 12, reduce the tight embedding of whole setscrew.
Embodiment five, the basis of embodiment one limits further the solid cylinder 3 that expands and connects together with expansion barrel 4, and diameter is identical with the diameter of screw bullet 6 rear end, are convenient to when transmitting setscrew enters Inset without hindrance.
Embodiment six, the basis of embodiment one limits expansion barrel 4 vertical wall thickness further increase gradually, when screw expansion head 12 is pulled backward with screw expansion neck 9, by expansion barrel 4 spreading, fastening screw screw mandrel 2, without silk screw rod 7, screw expansion neck 9 form screw rod while, whole setscrew is tightly locked in Inset.
More than show and describe basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should be appreciated that; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications; these changes and improvements all fall in the claimed scope of the invention, and application claims protection domain is defined by its equivalent of appending claims.
Claims (4)
1. a transmitting setscrew, by nut (1), lead screw (2), expand solid cylinder (3), expansion barrel (4), expansion barrel crack (5), without silk screw rod (7), wall bar chamber (8), screw expansion neck (9) and screw expansion head (12) composition, nut (1) central authorities are circular, inside there is screw thread, with the threaded engagement in lead screw (2), the solid cylinder (3) that expands is without silk screw rod (7) metal cylinder outward, without silk screw rod (7) front end connecting screw rod expansion neck (9), rear end connecting screw bar (2), wall bar chamber (8) is the cavity between expansion barrel (4) and screw expansion neck (9), characterized by further comprising setscrew front end and be provided with the screw bullet (6) that setscrew can be facilitated to inject Inset, screw warhead form is with known bullet head, front end is tapering, rear end is circle slightly, the thin bar (13) that an end expands is protruded at screw bullet (6) rear, thin bar (13) end expand for span (10) fixed by bullet, cavity between thin bar (13) and screw expansion neck (9) is neck chamber (11), screw expansion head (12) is positioned at the front end of screw expansion neck (9), screw expansion head (12) moves expansion barrel (4) spreading in wall bar chamber (8).
2. transmitting setscrew according to claim 1, it is characterized in that nut (1) outside is for Hexagon, central authorities are circular.
3. transmitting setscrew according to claim 1, the solid cylinder (3) that it is characterized in that expanding connects together with expansion barrel (4), and the solid cylinder (3) that expands is identical with the diameter of expansion barrel (4) diameter and screw bullet (6) rear end.
4. transmitting setscrew according to claim 1, is characterized in that expansion barrel (4) vertical wall thickness increases gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210160982.1A CN103423267B (en) | 2012-05-23 | 2012-05-23 | Expansion screw for launching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210160982.1A CN103423267B (en) | 2012-05-23 | 2012-05-23 | Expansion screw for launching |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103423267A CN103423267A (en) | 2013-12-04 |
| CN103423267B true CN103423267B (en) | 2016-03-02 |
Family
ID=49648485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210160982.1A Expired - Fee Related CN103423267B (en) | 2012-05-23 | 2012-05-23 | Expansion screw for launching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103423267B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112944044B (en) * | 2021-04-25 | 2022-06-17 | 三峡大学 | Concrete pump pipe fixing structure for super high-rise building construction |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4037512A (en) * | 1973-10-24 | 1977-07-26 | Nordisk Kartro Aktiebolag | Wire nail |
| DE2748631A1 (en) * | 1977-10-29 | 1979-05-03 | Wuerth Adolf Schrauben | Anchor dowel taper plug expanding screw - has saw tooth thread profile on cylindrical body with sharp point |
| CN2312358Y (en) * | 1997-11-03 | 1999-03-31 | 揭阳市南光实业有限公司 | Expanding screw bolt used for soft wall |
| CN2854171Y (en) * | 2005-12-27 | 2007-01-03 | 詹定元 | Pointed expansion bolt |
| CN202012547U (en) * | 2011-01-25 | 2011-10-19 | 毛雪祥 | Strong expansion device |
-
2012
- 2012-05-23 CN CN201210160982.1A patent/CN103423267B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4037512A (en) * | 1973-10-24 | 1977-07-26 | Nordisk Kartro Aktiebolag | Wire nail |
| DE2748631A1 (en) * | 1977-10-29 | 1979-05-03 | Wuerth Adolf Schrauben | Anchor dowel taper plug expanding screw - has saw tooth thread profile on cylindrical body with sharp point |
| CN2312358Y (en) * | 1997-11-03 | 1999-03-31 | 揭阳市南光实业有限公司 | Expanding screw bolt used for soft wall |
| CN2854171Y (en) * | 2005-12-27 | 2007-01-03 | 詹定元 | Pointed expansion bolt |
| CN202012547U (en) * | 2011-01-25 | 2011-10-19 | 毛雪祥 | Strong expansion device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103423267A (en) | 2013-12-04 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20160523 |
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| CF01 | Termination of patent right due to non-payment of annual fee |