CN109322890B - Quick installation type expansion bolt - Google Patents
Quick installation type expansion bolt Download PDFInfo
- Publication number
- CN109322890B CN109322890B CN201811539906.5A CN201811539906A CN109322890B CN 109322890 B CN109322890 B CN 109322890B CN 201811539906 A CN201811539906 A CN 201811539906A CN 109322890 B CN109322890 B CN 109322890B
- Authority
- CN
- China
- Prior art keywords
- bolt
- expansion
- sleeve
- holes
- bottom plate
- 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.)
- Active
Links
- 238000009434 installation Methods 0.000 title description 4
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000000630 rising effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
- F16B13/063—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander
- F16B13/066—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/282—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dowels (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a quick-mounting expansion bolt, which comprises a sleeve and a bolt, wherein the bolt comprises a screw rod, screw heads and expansion heads, the screw heads and the expansion heads are positioned at two ends of the screw rod, the expansion heads are of inverted truncated cone shapes, a plurality of annular first cutting grooves are formed in the outer surface of the expansion heads, a first platform is formed between the first cutting grooves, the sleeve comprises a bottom plate and a sleeve body positioned at the bottom of the bottom plate, through holes are formed in the bottom plate and the sleeve body in a penetrating manner, the through holes comprise first-stage holes and second-stage holes, the first-stage holes are threaded holes which are matched with the screw rod and have diameters larger than those of the second-stage holes, annular second cutting grooves which are corresponding to the first cutting grooves are formed in the inner wall of the second-stage holes, a plurality of annular third cutting grooves which extend to the bottom end and penetrate through the wall of the bottom end are arranged between the second cutting grooves, and the sleeve body is small in number of integral parts and convenient to install.
Description
[ field of technology ]
The invention relates to the technical field of expansion bolts, in particular to the technical field of quick-mounting expansion bolts.
[ background Art ]
The expansion bolt generally comprises a screw column body, an expansion head, an expansion sleeve, a nut, a gasket and other parts, and can be divided into an external nut expansion bolt and an internal nut expansion bolt according to the position of the nut. The expansion bolt with the external nut is in a form that the nut is exposed outside, and the expansion bolt is fastened by screwing the nut; the expansion bolt with built-in nut is in a form that the nut (namely, the expansion head) is buried in a drilling hole of a connecting body such as a wall body or concrete, and the expansion bolt is fastened by screwing a screw head at the end part of a screw column body. The common expansion bolts have more parts, are easy to lose, have more mounting steps and are more troublesome.
[ invention ]
The invention aims to solve the problems in the prior art, and provides a quick-mounting expansion bolt, which can prevent a sleeve from rotating in a hole along with the screwing of the bolt by a hexagonal cylindrical sleeve body and a bottom plate with a spike arranged on the sleeve body, ensure the tightness of the expansion bolt, enable the sleeve to expand along a second-order hole through the screwing of an expanding head so as to firmly prop up an external preset hole and an internal bolt of the sleeve, and prevent the bolt from falling out from the opposite direction of the screwing direction of the bolt by propping a first platform of a first cutting groove and a second platform of a second cutting groove.
In order to achieve the above purpose, the invention provides a quick-mounting expansion bolt, which comprises a sleeve and a bolt, wherein the bolt comprises a screw rod, screw heads and expansion heads, the screw heads and the expansion heads are positioned at two ends of the screw rod, the expansion heads are in an inverted truncated cone shape, a plurality of annular first cutting grooves are formed on the outer surface of the expansion heads, a first platform is formed between the first cutting grooves, the sleeve comprises a bottom plate and a sleeve body positioned at the bottom of the bottom plate, through holes are formed in the bottom plate and the sleeve body in a penetrating manner, the through holes comprise first-stage holes and second-stage holes, the first-stage holes are threaded holes which are matched with the screw rod, the diameter of the first-stage holes is larger than that of the second-stage holes, annular second cutting grooves which are corresponding to the first cutting grooves are formed on the inner wall of the second-stage holes, a plurality of third cutting grooves which extend to the bottom end of the sleeve body and penetrate through the wall are formed between the second cutting grooves.
Preferably, the sleeve body is hexagonal cylindrical.
Preferably, the bottom plate and the sleeve body are of an integrated structure, the outer diameter of the bottom plate is larger than that of the sleeve body, and a plurality of spines are arranged on the bottom surface of the bottom plate around the sleeve body.
Preferably, the screw head, the screw rod and the expansion head are of an integrated structure, the outer diameter of the top of the expansion head is the same as the diameter of the screw rod, and the outer diameter of the bottom of the expansion head is slightly larger than the diameter of the second-order hole.
Preferably, the starting point of the third slot is lower than the connection between the first step hole and the second step hole.
Preferably, the retaining direction of the first and second slots is opposite to the screwing direction of the bolt into the sleeve.
The invention has the beneficial effects that: according to the invention, the hexagonal cylindrical sleeve body and the bottom plate with the spines are arranged on the sleeve body, so that the sleeve is prevented from rotating in the hole along with the screwing of the bolt, the tightness of the expansion bolt is ensured, the sleeve is expanded along the second-order hole by screwing of the expansion head, so that the sleeve is firmly propped against the external preset hole and the internal bolt, the first platform of the first cutting groove is propped against the second platform of the second cutting groove, the bolt is prevented from falling out from the direction opposite to the screwing direction of the bolt, the whole parts are few, and the installation is convenient.
The features and advantages of the present invention will be described in detail by way of example with reference to the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a front view of a quick-install expansion bolt of the present invention;
FIG. 2 is a front view of a bushing of a quick-install expansion bolt of the present invention;
FIG. 3 is a top view of a sleeve of a quick-install expansion bolt of the present invention;
FIG. 4 is a front view of a bolt of a quick-install expansion bolt of the present invention;
FIG. 5 is an enlarged view of a portion at A of FIG. 2;
fig. 6 is a partial enlarged view at B of fig. 4.
In the figure: 1-sleeve, 11-bottom plate, 111-spike, 12-sleeve body, 121-third cutting groove, 13-through hole, 131-first step hole, 132-second step hole, 1321-second platform, 2-bolt, 21-spiral head, 22-screw, 23-expansion head and 231-first platform.
[ detailed description ] of the invention
Referring to fig. 1 to 6, the quick-mounting expansion bolt of the present invention comprises a sleeve 1 and a bolt 2, the bolt 2 comprises a screw 22, a screw head 21 and an expansion head 23 positioned at two ends of the screw 22, the expansion head 23 is in a shape of an inverted circular truncated cone, a plurality of annular first cutting grooves are arranged on the outer surface of the expansion head 23, a first platform 231 is formed between the first cutting grooves, the sleeve 1 comprises a bottom plate 11 and a sleeve body 12 positioned at the bottom of the bottom plate 11, through holes 13 are arranged in the bottom plate 11 and the sleeve body 12 in a penetrating way, the through holes 13 comprise a first step hole 131 and a second step hole 132, the first step hole 131 is a threaded hole which is matched with the screw 22 and has a diameter larger than that of the second step hole 132, annular second cutting grooves corresponding to the first cutting grooves are arranged on the inner wall of the second step hole 132, a second platform 1321 is formed between the second cutting grooves, the lower extreme of sleeve pipe body 12 is equipped with the third incision 121 that runs through the pipe wall of a plurality of extension to the bottom, sleeve pipe body 12 is the hexagonal cylindricality, bottom plate 11 and sleeve pipe body 12 be integrated into one piece structure, the external diameter of bottom plate 11 be greater than sleeve pipe body 12's external diameter, the bottom surface of bottom plate 11 is equipped with a plurality of spine 111 around sleeve pipe body 12, spiral shell head 21, screw rod 22 and rising head 23 be integrated into one piece structure, the external diameter at rising head 23 top is the same with the diameter of screw rod 22, the external diameter of rising head 23 bottom slightly is greater than the diameter of second order hole 132, the starting point position of third incision 121 is less than the junction of first order hole 131 and second order hole 132, the stopping direction of first incision and second incision is opposite with the screw bolt 2 entering sleeve pipe 1's screw in direction.
The working process of the invention comprises the following steps:
in the working process of the quick-mounting expansion bolt, firstly, the sleeve 2 is inserted into a preset hole on the ground or a wall surface in a downward direction at one end with the third cutting groove 121, then, the through hole of a piece to be fixed is aligned with the preset hole, and then, the bolt 1 is directly inserted into the through hole 13 of the sleeve 2 in a downward direction at one end with the expansion head 23. As the bolt 1 is screwed in, the expansion head 23 is gradually screwed into the second hole 132 of the sleeve 2 so that the sleeve 2 gradually expands along the third slot 121.
According to the invention, the hexagonal cylindrical sleeve body and the bottom plate with the spines are arranged on the sleeve body, so that the sleeve is prevented from rotating in the hole along with the screwing of the bolt, the tightness of the expansion bolt is ensured, the sleeve is expanded along the second-order hole by screwing of the expansion head, so that the sleeve is firmly propped against the external preset hole and the internal bolt, the first platform of the first cutting groove is propped against the second platform of the second cutting groove, the bolt is prevented from falling out from the direction opposite to the screwing direction of the bolt, the whole parts are few, and the installation is convenient.
The above embodiments are illustrative of the present invention, and not limiting, and any simple modifications of the present invention fall within the scope of the present invention.
Claims (2)
1. A quick install expansion bolt, characterized by: the screw bolt comprises a sleeve (1) and a bolt (2), wherein the bolt (2) comprises a screw rod (22) and screw heads (21) and expansion heads (23) which are positioned at two ends of the screw rod (22), the expansion heads (23) are in inverted truncated cone shapes, a plurality of annular first cutting grooves are formed in the outer surface of the expansion heads (23), a first platform (231) is formed between the first cutting grooves, the sleeve (1) comprises a bottom plate (11) and a sleeve body (12) positioned at the bottom of the bottom plate (11), through holes (13) are formed in the bottom plate (11) and the sleeve body (12) in a penetrating manner, the through holes (13) comprise first step holes (131) and second step holes (132), the first step holes (131) are threaded holes which are matched with the screw rod (22) and are larger than the second step holes (132), annular second cutting grooves which are corresponding to the first cutting grooves are formed in the inner wall of the second step holes (132), a plurality of the sleeve body (12) are provided with lower ends which are provided with third cutting grooves which extend to the bottom ends of the sleeve body (12) and are in a cylindrical shape, the screw rod (23) is in the same diameter, the screw heads (23) are in the expansion heads (23) and the screw rod (23) are in the cylindrical structures, the outer diameter of the bottom of the expansion head (23) is slightly larger than the diameter of the second-order hole (132), the starting point position of the third cutting groove (121) is lower than the joint of the first-order hole (131) and the second-order hole (132), and the stopping direction of the first cutting groove and the second cutting groove is opposite to the screwing direction of the bolt (2) into the sleeve (1).
2. A quick install expansion bolt according to claim 1, wherein: the bottom plate (11) and the sleeve body (12) are of an integrated structure, the outer diameter of the bottom plate (11) is larger than that of the sleeve body (12), and a plurality of spines (111) are arranged on the bottom surface of the bottom plate (11) around the sleeve body (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811539906.5A CN109322890B (en) | 2018-12-17 | 2018-12-17 | Quick installation type expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811539906.5A CN109322890B (en) | 2018-12-17 | 2018-12-17 | Quick installation type expansion bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109322890A CN109322890A (en) | 2019-02-12 |
| CN109322890B true CN109322890B (en) | 2023-08-25 |
Family
ID=65256968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811539906.5A Active CN109322890B (en) | 2018-12-17 | 2018-12-17 | Quick installation type expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109322890B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2231729Y (en) * | 1995-12-13 | 1996-07-24 | 林仙富 | Internal thread expansive bolt |
| CN2639603Y (en) * | 2003-07-08 | 2004-09-08 | 马志龙 | Large force expansion tube bolt |
| JP2004332848A (en) * | 2003-05-08 | 2004-11-25 | Koyo Kizai Kk | Blind bolt |
| CN101975211A (en) * | 2010-10-12 | 2011-02-16 | 魏民 | Pin shaft assembly |
| JP2016223116A (en) * | 2015-05-28 | 2016-12-28 | Ｆｓテクニカル株式会社 | Hole-in anchor, and installation method thereof |
| CN207848139U (en) * | 2017-12-13 | 2018-09-11 | 苏州茂隆电梯配件有限公司 | A kind of hollow anchor bolt |
| CN209398694U (en) * | 2018-12-17 | 2019-09-17 | 嘉兴钰丰汽车零部件有限公司 | A kind of Fast Installation type expansion bolt |
-
2018
- 2018-12-17 CN CN201811539906.5A patent/CN109322890B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2231729Y (en) * | 1995-12-13 | 1996-07-24 | 林仙富 | Internal thread expansive bolt |
| JP2004332848A (en) * | 2003-05-08 | 2004-11-25 | Koyo Kizai Kk | Blind bolt |
| CN2639603Y (en) * | 2003-07-08 | 2004-09-08 | 马志龙 | Large force expansion tube bolt |
| CN101975211A (en) * | 2010-10-12 | 2011-02-16 | 魏民 | Pin shaft assembly |
| JP2016223116A (en) * | 2015-05-28 | 2016-12-28 | Ｆｓテクニカル株式会社 | Hole-in anchor, and installation method thereof |
| CN207848139U (en) * | 2017-12-13 | 2018-09-11 | 苏州茂隆电梯配件有限公司 | A kind of hollow anchor bolt |
| CN209398694U (en) * | 2018-12-17 | 2019-09-17 | 嘉兴钰丰汽车零部件有限公司 | A kind of Fast Installation type expansion bolt |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109322890A (en) | 2019-02-12 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 314300 Qinshan Street Industrial Park, Haiyan County, Jiaxing City, Zhejiang Province Applicant after: Jiaxing Yufeng Auto Parts Co.,Ltd. Address before: 314300 Qinshan Street Industrial Park, Haiyan County, Jiaxing City, Zhejiang Province Applicant before: JIAXING YUFENG CAR PARTS Co.,Ltd. |
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| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |