CN113883142A - Reusable expansion bolt - Google Patents
Reusable expansion bolt Download PDFInfo
- Publication number
- CN113883142A CN113883142A CN202111227137.7A CN202111227137A CN113883142A CN 113883142 A CN113883142 A CN 113883142A CN 202111227137 A CN202111227137 A CN 202111227137A CN 113883142 A CN113883142 A CN 113883142A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- base
- screw
- wedge
- screw rod
- 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
- 210000002105 tongue Anatomy 0.000 claims description 33
- 238000010276 construction Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 6
- 230000002093 peripheral effect Effects 0.000 abstract description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 5
- 239000002699 waste material Substances 0.000 description 4
- 230000002265 prevention Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000746 Structural steel Inorganic materials 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention relates to the field of construction engineering auxiliary parts, in particular to a detachable and reusable expansion bolt, which can be used repeatedly, thereby reducing the cost, and comprises a sleeve and a screw rod which can be slidably arranged in the sleeve, and a base which is fixedly connected with one end of the sleeve, wherein a base nut is arranged in the base, the tip end of the screw rod is in threaded connection with the base nut, the side wall of the sleeve is provided with at least one lateral opening, each lateral opening is internally provided with a wedge-shaped movable tongue, and the wedge-shaped movable tongue is arranged between a flexible fastening ring and the inclined surface of the screw rod; when the screw rotates towards the direction of the base, the inclined surface of the screw drives the wedge-shaped movable tongue to move towards the peripheral direction of the sleeve, and when the screw rotates towards the direction far away from the base, the flexible fastening ring drives the wedge-shaped movable tongue to move towards the inner direction of the sleeve. The invention has ingenious design concept, successfully realizes the repeated utilization of the expansion bolt, has stable and reliable fixing effect and is particularly suitable for the field of constructional engineering.
Description
Technical Field
The invention relates to the field of construction auxiliary parts of constructional engineering, in particular to a reusable expansion bolt.
Background
With the development of construction technology, expansion bolts are widely used in engineering construction and become necessities in construction. However, the metal expansion bolts and the chemical expansion bolts are often used once. Therefore, the following problems are involved in construction: one-time use causes waste of resources. In engineering construction, a plurality of temporary components or temporary facilities are fixed by expansion bolts, and after the expansion bolts are used, the expansion bolts cannot be pulled out, only can be used as waste to be reserved in related structures, and cannot be reused, so that a large amount of waste is caused; and secondly, after the expansion bolt is used, the exposed structure part is generally subjected to cutting and rust prevention treatment. The rust prevention omission or poor rust prevention quality can cause the rusting of the bolt left in the structure, cause the rust return of the outer layer decoration and finishing, and more serious people can cause hidden troubles to the structure safety. If the bolt body contacts with the steel bar in the structure, the corrosion of the structural steel bar can be caused. Thirdly, water seepage at the holes of the mounting bolts: the hole drilling of the bolt hole or the installation of the expansion bolt can cause the structure to generate fine cracks at the hole, and the hole can not be treated after the bolt is used, so that water is easy to leak. The above is a common problem in the use of expansion bolts. How to accomplish saving, environmental protection, expansion bolts uses and does not leave the quality hidden danger for the engineering and is a problem that needs to solve.
Disclosure of Invention
The invention aims to provide a reusable expansion bolt which is detachable and reusable, so that the cost is reduced.
The technical scheme adopted by the invention for solving the technical problems is as follows: the reusable expansion bolt comprises a sleeve and a screw rod which is slidably arranged in the sleeve, and comprises a base fixedly connected with one end of the sleeve, wherein a base nut is arranged in the base, the tip end of the screw rod is in threaded connection with the base nut, the side wall of the sleeve is provided with at least one lateral opening, a wedge-shaped movable tongue is arranged in each lateral opening, and the wedge-shaped movable tongue is arranged between the flexible fastening ring and the inclined plane of the screw rod; when the screw rotates towards the direction of the base, the inclined surface of the screw drives the wedge-shaped movable tongue to move towards the peripheral direction of the sleeve, and when the screw rotates towards the direction far away from the base, the flexible fastening ring drives the wedge-shaped movable tongue to move towards the inner direction of the sleeve.
Further, including fixed cup joint set up in the screw rod card at screw rod most advanced, the screw rod card sets up between base nut and screw rod inclined plane, the screw rod card passes through the base spring and is connected with the base nut.
Further, the wedge-shaped movable tongues are uniformly distributed around the central axis of the sleeve.
Furthermore, the number of the wedge-shaped movable tongues is three.
Further, the flexible fastening ring is a fixed rubber sleeve.
Furthermore, an expansion bolt and a nut are arranged at the end of the screw rod extending out of one end of the sleeve.
Furthermore, a gasket is arranged at the end of the screw rod extending out of one end of the sleeve, and a spring gasket is arranged between the gasket and the expansion bolt nut.
Furthermore, a screw inner hexagonal structure is arranged on the end face of the end of the screw extending out of one end of the sleeve.
The invention has the beneficial effects that: when the bolt is practically used, when the screw rotates towards the base, the inclined surface of the screw drives the wedge-shaped movable tongue to move towards the peripheral direction of the sleeve, so that the wedge-shaped movable tongue expands outwards, and the expansion bolt is fixed. When the screw rod rotates towards the direction far away from the base, the flexible fastening ring drives the wedge-shaped movable tongue to move towards the inner direction of the sleeve, and the expansion bolt is not fixed any more, so that the expansion bolt can be taken out conveniently and quickly, and reutilization is realized. The invention has ingenious design concept, successfully realizes the repeated utilization of the expansion bolt, has stable and reliable fixing effect and is particularly suitable for the field of constructional engineering.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic view of the screw of the present invention.
Fig. 3 is a schematic view of the construction of the bushing of the present invention.
Fig. 4 is a schematic structural view of the base of the present invention.
FIG. 5 is a schematic illustration of the position of the wedge-shaped flapper when the expansion effect is not achieved in accordance with the present invention.
Fig. 6 is a schematic diagram of the position of the wedge-shaped flap when the expansion effect is achieved according to the present invention.
Labeled as: the screw rod clamping device comprises a base 1, a sleeve 2, a lateral opening 21, a screw rod 3, a screw rod tip 31, a screw rod inclined surface 32, a wedge-shaped movable tongue 4, a base nut 5, a base spring 6, a screw rod clamping piece 7, a flexible fastening ring 8, a gasket 9, a spring gasket 10, an expansion bolt nut 11 and a screw rod inner hexagonal structure 12.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The reusable expansion bolt shown in fig. 1 to 6 comprises a sleeve 2 and a screw 3 slidably arranged in the sleeve 2, and comprises a base 1 fixedly connected with one end of the sleeve 2, wherein a base nut 5 is arranged in the base 1, a screw tip 31 of the screw 3 is in threaded connection with the base nut 5, the side wall of the sleeve 2 is provided with at least one lateral opening 21, each lateral opening 21 is internally provided with a wedge-shaped loose tongue 4, and the wedge-shaped loose tongue 4 is arranged between a flexible fastening ring 8 and a screw inclined surface 32 of the screw 3; when the screw 3 rotates towards the base 1, the screw inclined surface 32 drives the wedge-shaped movable tongue 4 to move towards the outer periphery of the sleeve 2, and when the screw 3 rotates towards the direction far away from the base 1, the flexible fastening ring 8 drives the wedge-shaped movable tongue 4 to move towards the inner direction of the sleeve 2.
As shown in figure 5, the peripheral arc line of the wedge-shaped movable tongue 4 can be selected to be consistent with the peripheral arc line of the sleeve 2, so that the outer wall surface of the sleeve 2 cannot protrude outwards when the sleeve is not expanded. And as shown in fig. 6, when the expansion effect is realized, the wedge-shaped movable tongue 4 can outwards support out the flexible fastening ring 8, so that the expansion effect is realized and the fixation is realized. The bolt of the reusable expansion bolt is simple in structure, convenient to install and disassemble, capable of being operated and used through simple training, capable of reducing resource waste and construction cost. Meanwhile, the flexible fastening ring 8 is arranged at the expansion supporting point, so that the defects of fine cracks generated at the hole, structural steel bar corrosion and structural water leakage are avoided.
For greater convenience in the withdrawal of the screw 3, the following is preferred: screw rod card 7 of establishing in screw rod point 31 is established including fixed cup, screw rod card 7 sets up between base nut 5 and screw rod inclined plane 32, screw rod card 7 passes through base spring 6 and is connected with base nut 5. The base spring 6 can provide elastic support when the screw rod 3 is withdrawn, so that the screw rod 3 can move towards the direction far away from the base 1 conveniently.
In order to ensure an even distribution of the expansion force provided by the wedge-shaped tongues 4, said wedge-shaped tongues 4 are preferably evenly distributed around the central axis of the casing 2. Generally, three wedge-shaped movable tongues 4 are preferred.
In practical use, the flexible fastening ring 8 is preferably a fixed rubber sleeve, so that the wedge-shaped movable tongue 4 can be effectively limited, the wedge-shaped movable tongue 4 is limited in a space formed by the flexible fastening ring 8, the screw inclined plane 32 and the lateral opening 21, and the wedge-shaped movable tongue 4 is ensured to have a sufficient moving space when expansion or contraction is realized.
In order to facilitate the operation when rotating the screw rod 3, it is preferable that the end of the screw rod 3 extending out of the casing 2 is provided with an expansion bolt and nut 11. In addition, such a scheme may also be selected: and a gasket 9 is arranged at the end of the screw rod 3 extending out of one end of the sleeve 2, and a spring gasket 10 is arranged between the gasket 9 and the expansion bolt nut 11. Such structure can let the end portion of screw rod 3 get into the base nut within range to let expansion bolts need not additionally again to expose the general cutting of structure part, rust-resistant treatment after the fastening, improved the efficiency of construction greatly, also improved construction environment's factor of safety.
Similarly, a screw inner hexagonal structure 12 may also be optionally arranged on the end surface of the end of the screw 3 extending out of one end of the sleeve 2.
In combination with the above structure, in actual manufacturing and use, the following steps can be referred to: firstly, processing all structural parts according to a drawing, then, installing a screw rod 3 into a sleeve 2, installing a wedge-shaped movable tongue 4 into the sleeve 2 through a lateral opening 21 of the sleeve, adjusting the positions of the wedge-shaped movable tongue 4 and the screw rod 3, tightly hooping the wedge-shaped movable tongue by using a fixed rubber sleeve, connecting a base 1 and the sleeve 2 through respective end part threads, rotating the screw rod 3 to enable a tip 31 of the screw rod to enter a base nut 5, and adjusting the screw rod 3 to a proper position to complete bolt assembly. Then, a hole is drilled in the structure and an expansion bolt is fed into the structural hole. And then, the bolt is rotated by an inner hexagonal wrench to push the wedge-shaped movable tongue 4 to move outwards the sleeve 2 and tightly push against the wall of the bolt hole, so that the bolt and the hole are fixed. The expansion bolt can be used after being fixed. After the bolt is used, the screw rod 3 is rotated reversely, and the wedge-shaped movable tongue 4 is contracted under the pushing of the contraction force of the fixed rubber sleeve and is separated from the wall of the hole. And (5) pulling out the expansion bolt to plug the hole. And repeating the steps to reuse the bolt.
Claims (8)
1. Reusable expansion bolt, including sleeve pipe (2) and slidable screw rod (3) that set up in sleeve pipe (2), its characterized in that: the clamp comprises a base (1) fixedly connected with one end of a sleeve (2), a base nut (5) is arranged in the base (1), a screw tip (31) of a screw (3) is in threaded connection with the base nut (5), at least one lateral opening (21) is arranged on the side wall of the sleeve (2), a wedge-shaped movable tongue (4) is arranged in each lateral opening (21), and each wedge-shaped movable tongue (4) is arranged between a flexible fastening ring (8) and a screw inclined surface (32) of the screw (3); when the screw (3) rotates towards the base (1), the inclined surface (32) of the screw drives the wedge-shaped movable tongue (4) to move towards the periphery of the sleeve (2), and when the screw (3) rotates towards the direction far away from the base (1), the flexible fastening ring (8) drives the wedge-shaped movable tongue (4) to move towards the inner direction of the sleeve (2).
2. The reusable expansion bolt of claim 1, wherein: set up in screw rod card (7) at screw rod point end (31) including fixed cup jointing, screw rod card (7) set up between base nut (5) and screw rod inclined plane (32), screw rod card (7) are connected with base nut (5) through base spring (6).
3. A reusable expansion bolt according to claim 1 or 2, characterized in that: the wedge-shaped movable tongues (4) are uniformly distributed around the central axis of the sleeve (2).
4. A reusable expansion bolt according to claim 3, wherein: the number of the wedge-shaped movable tongues (4) is three.
5. A reusable expansion bolt according to claim 1 or 2, characterized in that: the flexible fastening ring (8) is a fixed rubber sleeve.
6. A reusable expansion bolt according to claim 1 or 2, characterized in that: an expansion bolt and nut (11) is arranged at the end of the screw rod (3) extending out of one end of the sleeve (2).
7. The reusable expansion bolt of claim 6, wherein: and a gasket (9) is arranged at the end of the screw rod (3) extending out of one end of the sleeve (2), and a spring gasket (10) is arranged between the gasket (9) and the expansion bolt nut (11).
8. The reusable expansion bolt of claim 6, wherein: and a screw inner hexagonal structure (12) is arranged at the end face of the end of the screw (3) extending out of one end of the sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111227137.7A CN113883142A (en) | 2021-10-21 | 2021-10-21 | Reusable expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111227137.7A CN113883142A (en) | 2021-10-21 | 2021-10-21 | Reusable expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113883142A true CN113883142A (en) | 2022-01-04 |
Family
ID=79004154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111227137.7A Pending CN113883142A (en) | 2021-10-21 | 2021-10-21 | Reusable expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113883142A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX9301222A (en) * | 1992-03-04 | 1993-09-01 | Vsi Corp | BRA SET. |
| US20090064488A1 (en) * | 2005-04-14 | 2009-03-12 | Brian Davies | Fastener |
| CN103052813A (en) * | 2011-05-10 | 2013-04-17 | 路德维希·戴美勒 | Pin and clamping system having pins |
| CN205278044U (en) * | 2015-12-28 | 2016-06-01 | 刘联 | Can extract used repeatedly's expansion bolts |
| CN205823842U (en) * | 2016-07-11 | 2016-12-21 | 沈阳大学 | A kind of dismountable expansion bolt |
| CN106662136A (en) * | 2014-08-04 | 2017-05-10 | 贝尔恩德·西格蒙德 | Bolt for bracing parts lying on one another |
| CN210978117U (en) * | 2019-04-25 | 2020-07-10 | 安徽思帕德信息技术有限公司 | Harmless removable inflation screw |
-
2021
- 2021-10-21 CN CN202111227137.7A patent/CN113883142A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX9301222A (en) * | 1992-03-04 | 1993-09-01 | Vsi Corp | BRA SET. |
| US20090064488A1 (en) * | 2005-04-14 | 2009-03-12 | Brian Davies | Fastener |
| CN103052813A (en) * | 2011-05-10 | 2013-04-17 | 路德维希·戴美勒 | Pin and clamping system having pins |
| CN106662136A (en) * | 2014-08-04 | 2017-05-10 | 贝尔恩德·西格蒙德 | Bolt for bracing parts lying on one another |
| CN205278044U (en) * | 2015-12-28 | 2016-06-01 | 刘联 | Can extract used repeatedly's expansion bolts |
| CN205823842U (en) * | 2016-07-11 | 2016-12-21 | 沈阳大学 | A kind of dismountable expansion bolt |
| CN210978117U (en) * | 2019-04-25 | 2020-07-10 | 安徽思帕德信息技术有限公司 | Harmless removable inflation screw |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2016150212A1 (en) | Impact-type anchor cable anchor-unhooking apparatus having preinstalled anchor-unhooking rings and method therefor | |
| CN113883142A (en) | Reusable expansion bolt | |
| CN205857565U (en) | The column mounting seat on stair provisional protection hurdle and mounting structure thereof | |
| JP2009091789A (en) | Clamp | |
| CN204591908U (en) | Easily detachable expansion bolt | |
| CN103362304A (en) | Self-anchoring and positioning bolt device and method for mounting a template | |
| CN106958297B (en) | Temporary plugging device and plugging method for reserved hole in basement outer wall | |
| CN210034108U (en) | Bolt lengthening device | |
| CN203769083U (en) | Steel tube fixer | |
| CN204487442U (en) | The auxiliary spanner that a kind of flanged dish Large Diameter Pipeline iron pipe is installed | |
| CN108916499B (en) | Improved marine duplex blind flange and position switching method thereof | |
| CN110497359A (en) | A kind of mining geomantic omen pipeline flange disassembly opening device and method | |
| CN214274682U (en) | Temporary fixing support for cantilever pipeline | |
| CN206845526U (en) | A kind of leak clamping device of water pump bearing case | |
| CN219365548U (en) | Be used for supplementary channel of steel construction factory building construction | |
| CN218176611U (en) | Wall connecting piece structure | |
| CN212250052U (en) | Elastic positioning device | |
| CN218374912U (en) | Pre-buried back bolt | |
| CN221780195U (en) | Drain pipe anti-seepage device for subway civil engineering | |
| CN218094808U (en) | Water supply and drainage pipeline connection structure | |
| CN216618166U (en) | Expansion bolt for improving tightness | |
| CN204456187U (en) | A kind of underground pipe gallery construction inner formword support member | |
| CN214402704U (en) | Tool type wall connecting piece structure and steel pipe scaffold structure | |
| CN221347548U (en) | Detachable prestress anchor bolt | |
| CN221972984U (en) | Clamping piece for transverse connection of steel pipes |
Legal Events
| 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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220104 |