CN108953329B - Expansion nail - Google Patents
Expansion nail Download PDFInfo
- Publication number
- CN108953329B CN108953329B CN201811062607.7A CN201811062607A CN108953329B CN 108953329 B CN108953329 B CN 108953329B CN 201811062607 A CN201811062607 A CN 201811062607A CN 108953329 B CN108953329 B CN 108953329B
- Authority
- CN
- China
- Prior art keywords
- expansion
- screw
- sleeve
- baffle
- nail
- 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
- 230000002093 peripheral effect Effects 0.000 abstract description 12
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 239000011464 hollow brick Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000717 retained effect 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
- F16B13/068—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 expanded in two or more places
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention relates to an expansion nail, which comprises a sleeve, a screw and a positioning rod, wherein the sleeve is sleeved on the periphery of the positioning rod, a gap is reserved between the inner wall of the sleeve and the outer wall of the positioning rod, a screw hole matched with the screw rod of the screw is formed in the positioning rod, a baffle plate which is blocked at one end part of the sleeve is arranged at one end of the positioning rod, a nut which is blocked at the other end part of the sleeve is arranged at one end of the screw, the diameter of the nut is larger than the inner diameter of the sleeve, expansion grooves are uniformly distributed on the peripheral wall of the sleeve along the axial direction, the sleeve between adjacent expansion grooves forms an expansion strip, a V-shaped groove is formed at the end part of the expansion strip, which is close to the baffle plate, so that a V-shaped expansion block is formed on the expansion strip, and when the screw is screwed in the screw hole, the nut extrudes the expansion strip at the position of the sleeve to deform outwards so that the V-shaped expansion block protrudes outwards to form a barb. The invention can be firmly supported in the hole, has very high strength of connection with the wall, can bear very high force, can not fall off, and is safe and convenient to use.
Description
Technical Field
The invention relates to the technical field of fasteners, in particular to an expansion nail.
Background
In the field of fasteners, expansion bolts are widely used, for example, when other hanging objects are installed on walls, beams, columns and the like of a building, holes are generally drilled in the required positions of the building, then the expansion bolts are installed in the holes, and then the other hanging objects are fixed on the expansion bolts. The current common expansion nail comprises a screw and a sleeve outside the screw, an expansion joint is arranged on the sleeve, and the change of the volume of the sleeve is realized through the change of the relative positions of the screw and the sleeve so as to achieve the aim of fixation. However, the nail inlet of the expansion nail is loosened firstly in the use process, so that a gap is formed between the expansion nail and the wall body, the firmness between the expansion nail and the wall hole is affected, and the expansion nail is not firm in installation and easy to loosen especially in the wall body with small density, such as an aerated block wall body, a gypsum board wall body, a hollow brick wall body and the like. In addition, the expansion nails are tightly attached to the sleeve after assembly, the disassembly is difficult, the screws are easy to deform in the disassembly process, the screws cannot be reused, resources are wasted, the expansion nails are retained on the wall, the decoration effect is affected, and the appearance is not attractive.
Disclosure of Invention
The invention aims to solve the technical problem of providing an expansion nail which can be firmly combined with a wall hole and is safe and convenient to use.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides an inflation nail, including the sleeve pipe, screw and locating lever, the sleeve pipe cover is in the periphery of locating lever, leave the clearance between the outer wall of telescopic inner wall and locating lever, set up the screw with the screw rod matched with of screw in the locating lever, the one end of keeping away from the screw on the locating lever is equipped with the baffle that keeps off at sleeve pipe one end, the one end of keeping away from the baffle on the screw is equipped with the nail cap that keeps off at sleeve pipe other end, the diameter of nail cap is greater than the internal diameter of sleeve pipe, there is the expansion groove along the axial equipartition on the sheathed tube perisporium, the sleeve pipe between the adjacent expansion groove has constituted the expansion strip, the V type groove has been seted up to be close to the tip of baffle on the expansion strip and has been formed with V type expansion piece on the expansion strip, when the screw is screwed in the screw cap extrusion sleeve pipe order to drive the outward deformation of V type expansion piece and makes the outwards protruding formation barb.
Preferably, a nail removing pipe is sleeved between the sleeve and the positioning rod, wherein an external thread is arranged on the outer peripheral wall of the positioning rod, an internal thread matched with the external thread is arranged on the inner peripheral wall of the nail removing pipe, an end plate is fixed at one end of the nail removing pipe, which is close to the screw, a through hole for the screw to pass through is formed in the end plate, a clamping groove matched with a screwdriver is formed in the end face of the end plate, a baffle ring is fixed on the inner peripheral wall of one end, which is close to the screw, of the sleeve, and the inner diameter of the baffle ring is smaller than the outer diameter of the nail removing pipe.
Preferably, a T-shaped positioning groove is formed in one end, close to the baffle, of the sleeve, and a clamping pin corresponding to the T-shaped positioning groove is fixed on the peripheral wall of the positioning rod.
Preferably, expansion notches which are arranged in a splayed shape are symmetrically arranged on two sides of the edge of the expansion groove at one end, close to the positioning rod, of the sleeve.
Preferably, the clamping groove is a straight clamping groove.
Preferably, the baffle is a circular plate, and the diameter of the baffle is larger than the inner diameter of the sleeve.
According to the invention, the expansion grooves are uniformly distributed on the peripheral wall of the sleeve in the axial direction, the sleeve between adjacent expansion grooves forms the expansion strips, the V-shaped grooves are formed at the ends, close to the baffle plates, of the expansion strips so as to form the expansion blocks, when the screw is screwed in the screw hole, the sleeve is extruded by the nut so as to compress the sleeve, the expansion strips at the V-shaped grooves are driven to deform outwards to be larger in diameter, meanwhile, the V-shaped expansion blocks protrude outwards to form barbs, an expansion effect is formed between the expansion strips and the wall body, the barbs can further increase expansion force, the expansion diameter is large, the expansion device is particularly suitable for the wall body with low density, such as an aerated block wall body, a gypsum board wall body or a hollow brick wall body, and the like, can be firmly supported in the wall hole, has very high connection strength with the wall, can bear very high force, and can not fall off condition, and is safe and convenient to use.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic view of an external overall structure according to an embodiment of the present invention.
Fig. 3 is an exploded view of an embodiment of the present invention.
Fig. 4 is a schematic view of the structure of the sleeve of the present invention in an expanded state.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in figures 1-4, the expansion nail comprises a sleeve 1, a screw 2 and a positioning rod 3, wherein the sleeve 1 is sleeved on the periphery of the positioning rod 3, a gap is reserved between the inner wall of the sleeve 1 and the outer wall of the positioning rod 3 so that the sleeve can freely move, a screw hole 4 matched with a screw rod of the screw is formed in the positioning rod 3, a baffle 5 is arranged at one end, far away from the screw, of the positioning rod 3, the baffle 5 is blocked at one end part of the sleeve 1, a nut 6 is arranged at one end, far away from the baffle, of the screw 2, the diameter of the nut 6 is larger than the inner diameter of the sleeve, the nut 6 is blocked at the other end part of the sleeve, the length of the screw 2 is smaller than the length of the sleeve 1, the length of the positioning rod 3 is smaller than the length of the sleeve 1, after the screw rod of the screw 2 is screwed in the screw hole 4, the baffle 5 and the nut 6 are matched to fix the sleeve 1 in the middle, the peripheral wall of the sleeve 1 is uniformly distributed with expansion grooves 7 along the axial direction, three, four or more expansion grooves can be formed on the peripheral wall of the sleeve, of course, different numbers of expansion grooves can be formed according to the requirement, the sleeve between adjacent expansion grooves forms an expansion strip 8, the end part of the expansion strip 8, which is close to the baffle, is provided with a V-shaped groove 9 so as to form a V-shaped expansion block 10, the expansion strips between the two end edges of the V-shaped groove 9 and the expansion grooves on two sides are narrower, the sleeve is easy to bend and deform after being extruded, thus the V-shaped expansion block 10 protrudes outwards to form a barb, other grooves such as U-shaped grooves or trapezoid grooves can be formed, and the sleeve is compressed by the screw cap 6 when the screw is screwed in the screw hole, so that the expansion strip at the V-shaped groove is driven to deform outwards to have a larger diameter, and the V-shaped expansion block protrudes outwards to form a barb, the V-shaped expansion block is clamped into the wall body, so that the sleeve is firmly connected with the wall body.
A nail removing pipe 11 is sleeved between the sleeve 1 and the positioning rod 3, the length of the nail removing pipe is smaller than that of the positioning rod, a gap is reserved between the inner wall of the sleeve and the outer wall of the nail removing pipe, an external thread 12 is arranged on the outer peripheral wall of the positioning rod, an internal thread matched with the external thread is arranged on the inner peripheral wall of the nail removing pipe 11, an end plate 13 is fixed at one end of the nail removing pipe close to a screw, the end plate 13 is a circular plate, a through hole 14 for the screw to pass through is arranged on the end plate, the screw rod of the screw passes through the through hole and then is screwed in the screw hole, a clamping groove 15 matched with a screw driver is arranged on the end surface of the end plate, the nail removing pipe 11 is convenient to assemble and disassemble, a baffle ring 16 is fixed on the inner peripheral wall of one end of the sleeve close to the screw, the inner diameter of the baffle ring 16 is smaller than the outer diameter of the nail removing pipe, the baffle ring 16 will keep off at the tip of nail-withdrawing pipe like this, the internal diameter of baffle ring is greater than the diameter of the screw rod of screw, when the inflation nail needs to be dismantled, at first loosen screw 2 through the screwdriver instrument for screw 2 and locating lever 3 separation, then inwards beat sleeve pipe 1, make V type expansion piece 10 and wall body separation, then outwards rotate nail-withdrawing pipe 11 through the screwdriver instrument, end plate 13 on the nail-withdrawing pipe 11 is pushing up baffle ring 16 and is moved to the outside, thereby baffle ring 16 pulls the sleeve pipe and extends outwards and make the expansion strip of V type groove department inwards shrink diameter diminish, so can take out sleeve pipe 1 from the wall hole, it is very convenient to dismantle it, and the inflation nail that can not damage in the dismantlement process, can reuse for the inflation nail that dismantles, the cost is saved, and it is even clean pleasing to the eye when having guaranteed the wall fitment moreover.
The T-shaped positioning groove 17 is formed in one end, close to the baffle, of the sleeve 1, the clamping pin 18 corresponding to the T-shaped positioning groove is fixed on the peripheral wall of the positioning rod, when the expansion nail is installed, the clamping pin 18 is clamped at one end in the T-shaped positioning groove, as shown in fig. 3, the clamping pin 18 is clamped at the upper end of the T-shaped positioning groove, so that the sleeve cannot rotate, the clamping wall cannot be loosened when the expansion block protrudes outwards, the clamping pin 18 is clamped at the other end in the T-shaped positioning groove when the expansion nail is disassembled, as shown in the drawing, the clamping pin 18 is clamped at the lower end of the T-shaped positioning groove, and the sleeve is connected with the positioning rod 3, so that the positioning rod is conveniently taken out, and the positioning rod cannot be detained in a wall hole.
Expansion notches 19 which are arranged in a splayed shape are symmetrically arranged on two sides of the edge of the expansion groove at one end, close to the positioning rod, of the sleeve 1, and when the sleeve is extruded under force, the expansion strips are easy to deform and protrude outwards.
The end face of the nut is provided with a cross-shaped clamping groove 20, and other grooves can be selected, such as a straight groove or an inner hexagon, so that the screw can be driven to rotate, and the operation is convenient.
The clamping groove 15 is a straight clamping groove, and other clamping grooves with other shapes, such as a cross shape, can be selected, so that the clamping groove is within the protection scope of the invention.
Claims (3)
1. An expansion nail, characterized in that: including sleeve pipe, screw and locating lever, the sleeve pipe cover is in the periphery of locating lever, leave the clearance between the outer wall of telescopic inner wall and locating lever, set up in the locating lever with the screw rod matched with screw, the one end of keeping away from the screw on the locating lever is equipped with the baffle that keeps off in sleeve pipe tip, the one end of keeping away from the baffle on the screw is equipped with the nail cap that keeps off in sleeve pipe other tip, the diameter of nail cap is greater than the internal diameter of sleeve pipe, there is the expansion tank on the sheathed tube perisporium along axial equipartition, the sleeve pipe between the adjacent expansion tank has constituted the expansion strip, V type expansion block has been offered to the tip that is close to the baffle on the expansion strip, when the screw is in the screw, the outside deformation of expansion strip that the V type expansion block outwards makes V type expansion block outwards protrude the barb, the cover has the nail that moves back between sleeve pipe and the locating lever, be equipped with the external screw on the perisporium wherein, be equipped with on the perisporium with the internal thread matched with of external screw on the perisporium of nail cap, the one end plate that is close to the sleeve pipe screw's one end plate is fixed with, the end plate has been offered the end plate that passes on the neck that the neck is close to the T on the baffle, the T type is close to the baffle on the neck that the neck is equipped with the baffle on the baffle, the neck is equipped with the fixed ring, the end of the T-shaped on the neck is equipped with the neck.
2. The expansion nail according to claim 1, characterized in that: expansion notches which are arranged in a splayed shape are symmetrically arranged on two sides of the edge of the expansion groove at one end, close to the positioning rod, of the sleeve.
3. The expansion nail according to claim 1, characterized in that: the baffle is the circular plate, and the diameter of baffle is greater than the internal diameter of cover pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811062607.7A CN108953329B (en) | 2018-09-12 | 2018-09-12 | Expansion nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811062607.7A CN108953329B (en) | 2018-09-12 | 2018-09-12 | Expansion nail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108953329A CN108953329A (en) | 2018-12-07 |
| CN108953329B true CN108953329B (en) | 2023-07-25 |
Family
ID=64476823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811062607.7A Active CN108953329B (en) | 2018-09-12 | 2018-09-12 | Expansion nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108953329B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374973A (en) * | 2019-08-22 | 2019-10-25 | 闫自超 | A kind of detachable expansion nail |
| CN112983951A (en) * | 2021-04-21 | 2021-06-18 | 福州百益百利自动化科技有限公司 | Expansion nail with expansion block |
| WO2023023933A1 (en) * | 2021-08-24 | 2023-03-02 | 江仲恒 | Fast expansion screw |
| CN114294310B (en) * | 2022-01-12 | 2024-04-09 | 江苏省艾维德紧固件有限公司 | Roller bearing composite riveting fastener and installation method thereof |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0182565A1 (en) * | 1984-11-10 | 1986-05-28 | Hayden John Adams | Anchoring bolt |
| JPH0392612A (en) * | 1989-08-29 | 1991-04-17 | Enka Ri | Dismountable expansion bolt |
| CN2439561Y (en) * | 2000-09-13 | 2001-07-18 | 张绍喜 | Self-locking and dismountable type expending bolt |
| CN202132333U (en) * | 2010-12-31 | 2012-02-01 | 江苏振亚特种螺钉有限公司 | Expansion bolt |
| DE202013005407U1 (en) * | 2013-06-14 | 2013-06-28 | Alfred Stelz | Variable fixing anchor with right and left hand thread, and two axially variably positionable expansion bodies, each with one right and left hand thread |
| CN203189452U (en) * | 2013-02-21 | 2013-09-11 | 陈龙兴 | Detachable expansion nail |
| JP2014074300A (en) * | 2012-10-05 | 2014-04-24 | Tsutomu Niimura | Post-installed anchor |
| CN205478751U (en) * | 2016-02-01 | 2016-08-17 | 赵希誉 | Expansion screw |
| CN205715141U (en) * | 2016-06-02 | 2016-11-23 | 苏州市职业大学 | A kind of dismountable expansion bolt |
| DE202017101335U1 (en) * | 2017-03-09 | 2017-03-30 | Chun Yen Huang | Improved assembly for threaded screws |
| CN106898976A (en) * | 2017-04-24 | 2017-06-27 | 闫自超 | A kind of termination for being easy to fast wiring |
| CN206329593U (en) * | 2016-12-28 | 2017-07-14 | 红塔烟草(集团)有限责任公司 | Novel expansion bolt that is a kind of detachable and can reusing |
| WO2017161962A1 (en) * | 2016-03-25 | 2017-09-28 | 张子豹 | V-shaped universal expansion bolt |
| CN207161490U (en) * | 2017-09-06 | 2018-03-30 | 王星宇 | A kind of swell fixture |
| CN108343660A (en) * | 2017-01-21 | 2018-07-31 | 马培博 | A kind of reusable expansion bolt |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208686754U (en) * | 2018-09-12 | 2019-04-02 | 闫自超 | A kind of expandable nail |
-
2018
- 2018-09-12 CN CN201811062607.7A patent/CN108953329B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0182565A1 (en) * | 1984-11-10 | 1986-05-28 | Hayden John Adams | Anchoring bolt |
| JPH0392612A (en) * | 1989-08-29 | 1991-04-17 | Enka Ri | Dismountable expansion bolt |
| CN2439561Y (en) * | 2000-09-13 | 2001-07-18 | 张绍喜 | Self-locking and dismountable type expending bolt |
| CN202132333U (en) * | 2010-12-31 | 2012-02-01 | 江苏振亚特种螺钉有限公司 | Expansion bolt |
| JP2014074300A (en) * | 2012-10-05 | 2014-04-24 | Tsutomu Niimura | Post-installed anchor |
| CN203189452U (en) * | 2013-02-21 | 2013-09-11 | 陈龙兴 | Detachable expansion nail |
| DE202013005407U1 (en) * | 2013-06-14 | 2013-06-28 | Alfred Stelz | Variable fixing anchor with right and left hand thread, and two axially variably positionable expansion bodies, each with one right and left hand thread |
| CN205478751U (en) * | 2016-02-01 | 2016-08-17 | 赵希誉 | Expansion screw |
| WO2017161962A1 (en) * | 2016-03-25 | 2017-09-28 | 张子豹 | V-shaped universal expansion bolt |
| CN205715141U (en) * | 2016-06-02 | 2016-11-23 | 苏州市职业大学 | A kind of dismountable expansion bolt |
| CN206329593U (en) * | 2016-12-28 | 2017-07-14 | 红塔烟草(集团)有限责任公司 | Novel expansion bolt that is a kind of detachable and can reusing |
| CN108343660A (en) * | 2017-01-21 | 2018-07-31 | 马培博 | A kind of reusable expansion bolt |
| DE202017101335U1 (en) * | 2017-03-09 | 2017-03-30 | Chun Yen Huang | Improved assembly for threaded screws |
| CN106898976A (en) * | 2017-04-24 | 2017-06-27 | 闫自超 | A kind of termination for being easy to fast wiring |
| CN207161490U (en) * | 2017-09-06 | 2018-03-30 | 王星宇 | A kind of swell fixture |
Non-Patent Citations (1)
| Title |
|---|
| 涨管螺钉的特点及其应用;华昕若, 华丽萍;住宅科技(第03期);第37-40页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108953329A (en) | 2018-12-07 |
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