CN107202056A - A kind of expansion bolt - Google Patents
A kind of expansion bolt Download PDFInfo
- Publication number
- CN107202056A CN107202056A CN201710489233.6A CN201710489233A CN107202056A CN 107202056 A CN107202056 A CN 107202056A CN 201710489233 A CN201710489233 A CN 201710489233A CN 107202056 A CN107202056 A CN 107202056A
- Authority
- CN
- China
- Prior art keywords
- kelly
- rod
- mounting
- push rod
- screw
- 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.)
- Pending
Links
- 238000009434 installation Methods 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000009466 transformation 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of expansion bolt, including screw rod, screw head, nut, sleeve, mounting groove, push rod, kelly, magnet piece, first spring, mounting hole, mounting rod, second spring, driver flutes and pad, the upper end integral type of the screw rod is provided with screw head, nut is threaded with the screw rod, the outside of the screw rod and positioned between screw head and nut slip cap be provided with sleeve, the outside of the screw rod and positioned at offering multiple axially extending mounting grooves along screw rod between screw head and sleeve, push rod and kelly are provided with the mounting groove, the upper end of the kelly and the upper end of mounting groove are hinged, the push rod is slidably mounted in mounting groove, the upper end of the push rod is relative with the free end of kelly, compared with prior art, effectively it can prevent expansion bolt from loosening, improve the fastness that expansion bolt is connected with mounting hole, effectively prevent expansion bolt from producing rotation during tightening, enhance the reliability of expansion bolt connection.
Description
【Technical field】
The present invention relates to standard component technical field, particularly a kind of expansion bolt.
【Background technology】
Expansion bolt, be by pipeline pernetti or equipment fix on the wall, on floor, a kind of special thread used on post
Connector.Expansion bolt is generally made up of dormant bolt, expansion sleeve, plain washer, spring pad and hex nut.In use, must be first
Get out the hole of corresponding size on fixed body, then in bolt, expansion sleeve load hole, tightening nut can make bolt, expansion sleeve,
Swelling is integrally formed between installed part and fixed body.
Existing expansion bolt reaches fixed effect only with the expansion of expansion sleeve.But its fixation very may not be used
Lean on, because expansion sleeve is made with very thin iron plate, later expansion sleeve, which can shape, over time causes the expansive force of expansion sleeve
It is wholly absent, when load has significant shock, the phenomenon for loosening even Joint failure easily occurs, in addition, existing expansion
Bolt is when the hex nut on its top is tightened, and dormant bolt also easily causes hex nut not as hex nut is rotated
Easily it is tightened, causes expansion sleeve to expand to greatest extent.
【The content of the invention】
The purpose of the present invention is exactly to solve the problems of the prior art, proposes a kind of expansion bolt, can effectively prevent swollen
Swollen bolt looseness, improves the fastness that expansion bolt is connected with mounting hole, effectively prevents expansion bolt during tightening
Rotation is produced, the reliability of expansion bolt connection is enhanced.
To achieve the above object, the present invention proposes a kind of expansion bolt, including screw rod, screw head, nut, sleeve, installation
Groove, push rod, kelly, magnet piece, the first spring, mounting hole, mounting rod, second spring, driver flutes and pad, the screw rod
Upper end integral type is provided with screw head, is threaded with nut on the screw rod, the outside of the screw rod and positioned at screw head and nut it
Between slip cap be provided with sleeve, the outside of the screw rod and positioned at offered between screw head and sleeve it is multiple along the axially extending of screw rod
Mounting groove, push rod and kelly are provided with the mounting groove, the upper end of the kelly and the upper end of mounting groove are hinged, described to push away
Bar is slidably mounted in mounting groove, and the upper end of the push rod is relative with the free end of kelly, the lower end of the push rod and sleeve
Inwall is fixedly connected, and the bottom of the mounting groove and the magnet piece for being available for adsorbing kelly, institute is embedded with immediately below the kelly
State and the first spring is provided between the upper end of push rod and the free end of kelly, the sidepiece of the screw head offers multiple footpaths along screw head
To the mounting hole of distribution, slided in the mounting hole and be provided with mounting rod, between the bottom of the mounting hole and the inner of mounting rod
Second spring is connected with, the one end of the screw rod away from screw head offers driver flutes, is arranged between the nut and sleeve
Pad.
Preferably, the total length of the push rod and kelly be less than mounting groove length, the push rod and kelly it is relative
Hold to be engaged scarf design and push rod upper end be located at kelly free end downside so that push rod towards kelly slide when
The free end of kelly can be ejected mounting groove by push rod, and one end of first spring is fixedly connected with push rod and the first spring is parallel
Set in mounting groove.
Preferably, the length of the mounting rod is slightly less than the depth of mounting hole, the outer end of the mounting rod is in scarf
The inclined-plane of design and the outer end of mounting rod is towards the top of screw head.
Preferably, the two ends of the second spring is are fixedly connected with, the driver flutes are Philip's head screw cutter groove.
Preferably, the cross section of the screw head is circle, the quantity of the mounting groove is at least 3 and is distributed in a balanced way
In the outside portion of screw rod.
Beneficial effects of the present invention：The present invention is provided with screw head by the upper end integral type in screw rod, and screw thread connects on screw rod
Nut is connected to, sleeve is provided with the outside of screw rod and positioned at slip cap between screw head and nut, in the outside of screw rod and positioned at spiral shell
Multiple axially extending mounting grooves along screw rod are offered between head and sleeve, push rod and kelly, kelly are provided with mounting groove
Upper end and the upper end of mounting groove be hinged, push rod is slidably mounted in mounting groove, the upper end of push rod and the free end phase of kelly
Right, the lower end of push rod is fixedly connected with the inwall of sleeve, is available in the bottom of mounting groove and being embedded with immediately below the kelly
The magnet piece of kelly is adsorbed, the first spring is provided between the upper end of push rod and the free end of kelly, is opened up in the sidepiece of screw head
There are multiple radially-arranged mounting holes along screw head, slided in mounting hole and be provided with mounting rod, in the bottom of mounting hole and installation
Bar it is inner between be connected with second spring, offer driver flutes in the one end of screw rod away from screw head, nut and sleeve it
Between be arranged with pad, can be by screw head towards the mounting hole on wall when when using the expansion bolt, then will expansion
Bolt hammer enters in the mounting hole on wall, after screw head enters the mounting hole on wall, the mounting rod of screw head sidepiece
Can by the mounting hole on wall side wall extruding and in retraction mounting hole, now second spring give mounting rod resilient support
So that the side wall of mounting hole on the outer end and wall of mounting rod produces larger frictional force, effectively prevent expansion bolt by compared with
Mounting hole during big load on abjection wall, after expansion bolt is pounded into mounting hole on wall, can clamp spiral shell with spanner
Mother tightens nut, and nut can be up along screw rod during tightening, and nut promotes sleeve up, sleeve is driven on push rod
OK, because push rod and the opposite end of kelly are that the scarf being engaged is designed so that the free end of kelly is ejected and installed by push rod
Groove, push rod continues up, and the free end of kelly is pushed up higher and higher and causes the free end of kelly to be clamped on the mounting hole on wall
Side wall, now the first spring can give kelly lasting resilient support so that the free end of kelly always with the installation on wall
The side wall in hole is mutually held out against, and effectively prevents expansion bolt from loosening, when when screw rod is rotated together with nut during tightening nut,
It can be stuck in the cutter head of Phillips screwdriver in driver flutes, effectively prevent screw rod from rotating, convenience tightens expansion bolt, with showing
There is technology to compare, effectively can prevent expansion bolt from loosening, improve the fastness that expansion bolt is connected with mounting hole, it is effectively anti-
Only expansion bolt produces rotation during tightening, and enhances the reliability of expansion bolt connection.
The feature and advantage of the present invention will be described in detail by embodiment combination accompanying drawing.
【Brief description of the drawings】
Fig. 1 is a kind of structural representation of expansion bolt of the invention.
In figure：1- screw rods, 2- screw heads, 3- nuts, 4- sleeves, 5- mounting grooves, 6- push rods, 7- kellies, 8- magnet pieces, 9-
One spring, 10- mounting holes, 11- mounting rods, 12- second springs, 13- driver flutes, 14- pads.
【Embodiment】
Refering to Fig. 1, a kind of expansion bolt of the invention, including screw rod 1, screw head 2, nut 3, sleeve 4, mounting groove 5, push rod 6,
Kelly 7, magnet piece 8, the first spring 9, mounting hole 10, mounting rod 11, second spring 12, driver flutes 13 and pad 14, it is described
The upper end integral type of screw rod 1 is provided with screw head 2, is threaded with nut 3 on the screw rod 1, the outside of the screw rod 1 and positioned at spiral shell
Slip cap is provided with sleeve 4, the outside of the screw rod 1 and multiple positioned at being offered between screw head 2 and sleeve 4 between first 2 and nut 3
Along the axially extending mounting groove 5 of screw rod 1, push rod 6 and kelly 7, the upper end of the kelly 7 and peace are provided with the mounting groove 5
The upper end of tankage 5 is hinged, and the push rod 6 is slidably mounted in mounting groove 5, the upper end of the push rod 6 and the free end of kelly 7
Relatively, the lower end of the push rod 6 is fixedly connected with the inwall of sleeve 4, the bottom of the mounting groove 5 and positioned at kelly 7 just under
Side is embedded with the magnet piece 8 for being available for adsorbing kelly 7, and the first spring is provided between the upper end of the push rod 6 and the free end of kelly 7
9, the sidepiece of the screw head 2 is offered to slide in multiple radially-arranged mounting holes 10 along screw head 2, the mounting hole 10 and is provided with
Mounting rod 11, is connected with second spring 12, the screw rod 1 is remote between the bottom of the mounting hole 10 and the inner of mounting rod 11
One end of screw head 2 offers driver flutes 13, and pad 14, the push rod 6 and kelly 7 are arranged between the nut 3 and sleeve 4
Total length be less than the length of mounting groove 5, the push rod 6 and the opposite end of kelly 7 are that the scarf being engaged is designed and push rod 6
The upper end free end that is located at kelly 7 downside cause push rod 6 towards kelly 7 slides when push rod 6 can be by the ejection of the free end of kelly 7
Mounting groove 5, one end of first spring 9 is fixedly connected with push rod 6 and the first spring 9 is set parallel to mounting groove 5, the peace
The length of dress bar 11 is slightly less than the depth of mounting hole 10, the outer end of the mounting rod 11 designed in scarf and mounting rod 11 it is outer
The inclined-plane at end is towards the top of screw head 2, and the two ends of the second spring 12 is are fixedly connected with, and the driver flutes 13 are cross spiral shell
Silk cutter groove, the cross section of the screw head 2 is circle, and the quantity of the mounting groove 5 is at least 3 and is distributed in screw rod 1 in a balanced way
Outside portion.
The course of work of the present invention：
A kind of expansion bolt of the present invention in the course of the work, can be by the court of screw head 2 when the expansion bolt is being used
To the mounting hole on wall, then expansion bolt hammer is entered in the mounting hole on wall, when screw head 2 enters on wall
After mounting hole, the mounting rod 11 of the sidepiece of screw head 2 can by the side wall of the mounting hole on wall extruding and retraction mounting hole 10
Interior, now second spring 12 gives the side wall that mounting rod 11 flexibly supports the mounting hole on the outer end and wall that cause mounting rod 11
Larger frictional force is produced, effectively prevents expansion bolt from, by the mounting hole deviate from during larger load on wall, working as expansion bolt
Pound into after the mounting hole on wall, nut 3 can be tightened with spanner clamping screw nut 3, nut 3 can edge during tightening
Screw rod 1 up, nut 3 promotes sleeve 4 up, sleeve 4 drives push rod 6 up, because the opposite end of push rod 6 and kelly 7 is
The scarf design being engaged so that the free end of kelly 7 is ejected mounting groove 5 by push rod 6, and push rod 6 continues up, kelly 7
Free end is pushed up higher and higher and causes the free end of kelly 7 to be clamped on the side wall of the mounting hole on wall, and now the first spring 9 can be given
The resilient support for giving kelly 7 lasting so that the free end of kelly 7 is always mutually held out against with the side wall of the mounting hole on wall, effectively
Prevent expansion bolt from loosening, when when screw rod 1 is rotated together with nut 3 during tightening nut 3, Phillips screwdriver can be used
Cutter head be stuck in driver flutes 13, effectively prevent screw rod 1 from rotating, it is convenient to tighten expansion bolt, compared with prior art, energy
It is enough effectively to prevent expansion bolt from loosening, the fastness that expansion bolt is connected with mounting hole is improved, effectively prevents expansion bolt from existing
Rotation is produced during tightening, the reliability of expansion bolt connection is enhanced.
Above-described embodiment is the description of the invention, is not limitation of the invention, it is any to simple transformation of the present invention after
Scheme belong to protection scope of the present invention.
Claims (5)
1. a kind of expansion bolt, it is characterised in that：Including screw rod (1), screw head (2), nut (3), sleeve (4), mounting groove (5),
Push rod (6), kelly (7), magnet piece (8), the first spring (9), mounting hole (10), mounting rod (11), second spring (12), screw
Cutter groove (13) and pad (14), the upper end integral type of the screw rod (1), which is provided with screw head (2), the screw rod (1), to be threaded with
Nut (3), the outside of the screw rod (1) and positioned at slip cap between screw head (2) and nut (3) provided with sleeve (4), the screw rod
(1) outside and positioned at offering multiple axially extending mounting grooves (5) along screw rod (1) between screw head (2) and sleeve (4),
Push rod (6) and kelly (7) are provided with the mounting groove (5), the upper end and the upper end of mounting groove (5) of the kelly (7) are hinged,
The push rod (6) is slidably mounted in mounting groove (5), and the upper end of the push rod (6) is relative with the free end of kelly (7), described
The lower end of push rod (6) is fixedly connected with the inwall of sleeve (4), the bottom of the mounting groove (5) and the underface for being located at kelly (7)
The magnet piece (8) for being available for adsorbing kelly (7) is embedded with, the is provided between the upper end of the push rod (6) and the free end of kelly (7)
One spring (9), the sidepiece of the screw head (2) offers multiple radially-arranged mounting holes (10) along screw head (2), described to install
Slide in hole (10) and be provided with mounting rod (11), the is connected between the bottom of the mounting hole (10) and the inner of mounting rod (11)
Two springs (12), the one end of the screw rod (1) away from screw head (2) offers driver flutes (13), the nut (3) and sleeve
(4) pad (14) is arranged between.
2. a kind of expansion bolt as claimed in claim 1, it is characterised in that：The push rod (6) and the total length of kelly (7) are small
Length in mounting groove (5), the push rod (6) is that the scarf being engaged is designed and push rod (6) with the opposite end of kelly (7)
Upper end be located at kelly (7) free end downside cause push rod (6) towards kelly (7) slides when push rod (6) can by kelly (7) oneself
By end ejection mounting groove (5), one end of first spring (9) is fixedly connected with push rod (6) and the first spring (9) is parallel to peace
Tankage (5) is set.
3. a kind of expansion bolt as claimed in claim 1, it is characterised in that：The length of the mounting rod (11) is slightly less than installation
The depth in hole (10), the outer end of the mounting rod (11) designed in scarf and the outer end of mounting rod (11) inclined-plane towards screw head
(2) top.
4. a kind of expansion bolt as claimed in claim 1, it is characterised in that：The two ends of the second spring (12) connect to be fixed
Connect, the driver flutes (13) are Philip's head screw cutter groove.
5. a kind of expansion bolt as any one of Claims 1-4, it is characterised in that：The cross section of the screw head (2)
For circle, the quantity of the mounting groove (5) is at least 3 and is distributed in the outside portion of screw rod (1) in a balanced way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710489233.6A CN107202056A (en) | 2017-06-24 | 2017-06-24 | A kind of expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710489233.6A CN107202056A (en) | 2017-06-24 | 2017-06-24 | A kind of expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107202056A true CN107202056A (en) | 2017-09-26 |
Family
ID=59907711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710489233.6A Pending CN107202056A (en) | 2017-06-24 | 2017-06-24 | A kind of expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107202056A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111219396A (en) * | 2020-02-28 | 2020-06-02 | 赵宝臣 | Cam drive formula expansion bolts |
| CN112628270A (en) * | 2020-12-11 | 2021-04-09 | 彭志远 | Positioning stud |
| CN112727893A (en) * | 2020-12-25 | 2021-04-30 | 浦江武鑫科技有限公司 | Expansion nut with large opening degree |
| CN117432695A (en) * | 2023-12-13 | 2024-01-23 | 江苏佳杰特种螺钉有限公司 | Bolt and nut assembly for fixing air conditioner outdoor unit |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2441018A (en) * | 2006-04-25 | 2008-02-20 | Romtech Ltd | Rock bolt and method of use |
| US20100247269A1 (en) * | 2009-03-27 | 2010-09-30 | Chih-Ching Hsieh | Threaded member with antirust effect |
| CN102359463A (en) * | 2011-08-02 | 2012-02-22 | 裴志胜 | Shear expansion bolt |
| CN203035684U (en) * | 2013-02-02 | 2013-07-03 | 李苏亭 | Umbrella supporting type expansion bolt |
| CN103195041A (en) * | 2013-04-25 | 2013-07-10 | 浙江海洋学院 | Anti-sedimentation pile for ocean wave power generation platform |
| CN105604057A (en) * | 2016-03-14 | 2016-05-25 | 北京科技大学 | Extension swing type anchor rod device |
| CN105714823A (en) * | 2016-03-22 | 2016-06-29 | 兰州理工大学 | Recoverable quick-anchoring and body-expanding type anchor rope and construction method |
| CN106638570A (en) * | 2016-11-23 | 2017-05-10 | 南京工业大学 | Hinge enlarged footing steel-pipe pile |
| CN207049143U (en) * | 2017-06-24 | 2018-02-27 | 海盐三鑫机械有限公司 | A kind of expansion bolt |
-
2017
- 2017-06-24 CN CN201710489233.6A patent/CN107202056A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2441018A (en) * | 2006-04-25 | 2008-02-20 | Romtech Ltd | Rock bolt and method of use |
| US20100247269A1 (en) * | 2009-03-27 | 2010-09-30 | Chih-Ching Hsieh | Threaded member with antirust effect |
| CN102359463A (en) * | 2011-08-02 | 2012-02-22 | 裴志胜 | Shear expansion bolt |
| CN203035684U (en) * | 2013-02-02 | 2013-07-03 | 李苏亭 | Umbrella supporting type expansion bolt |
| CN103195041A (en) * | 2013-04-25 | 2013-07-10 | 浙江海洋学院 | Anti-sedimentation pile for ocean wave power generation platform |
| CN105604057A (en) * | 2016-03-14 | 2016-05-25 | 北京科技大学 | Extension swing type anchor rod device |
| CN105714823A (en) * | 2016-03-22 | 2016-06-29 | 兰州理工大学 | Recoverable quick-anchoring and body-expanding type anchor rope and construction method |
| CN106638570A (en) * | 2016-11-23 | 2017-05-10 | 南京工业大学 | Hinge enlarged footing steel-pipe pile |
| CN207049143U (en) * | 2017-06-24 | 2018-02-27 | 海盐三鑫机械有限公司 | A kind of expansion bolt |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111219396A (en) * | 2020-02-28 | 2020-06-02 | 赵宝臣 | Cam drive formula expansion bolts |
| CN112628270A (en) * | 2020-12-11 | 2021-04-09 | 彭志远 | Positioning stud |
| CN112727893A (en) * | 2020-12-25 | 2021-04-30 | 浦江武鑫科技有限公司 | Expansion nut with large opening degree |
| CN117432695A (en) * | 2023-12-13 | 2024-01-23 | 江苏佳杰特种螺钉有限公司 | Bolt and nut assembly for fixing air conditioner outdoor unit |
| CN117432695B (en) * | 2023-12-13 | 2024-05-24 | 江苏佳杰特种螺钉有限公司 | Bolt and nut assembly for fixing air conditioner outdoor unit |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for 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: 20170926 |