CN103615458B - A kind of eccentric rotation-type unilateral bolt fastener - Google Patents
A kind of eccentric rotation-type unilateral bolt fastener Download PDFInfo
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- CN103615458B CN103615458B CN201310587223.8A CN201310587223A CN103615458B CN 103615458 B CN103615458 B CN 103615458B CN 201310587223 A CN201310587223 A CN 201310587223A CN 103615458 B CN103615458 B CN 103615458B
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- adjusting sleeve
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Abstract
The present invention relates to a kind of eccentric rotation-type unilateral bolt fastener, be set for the eccentric between bolt head and bolt shank, the arc surface matched with pipe fitting inner wall when bolt head surface of contact is and installs, eccentric adjusting sleeve and bolt shank match, and the two has identical throw of eccentric, during installation, by bolt shank through eccentric adjusting sleeve, swivel bolt or eccentric adjusting sleeve, make the dead in line of bolt head and eccentric adjusting sleeve cylindrical, then the two is together penetrated mounting hole, notice that throw of eccentric direction and the pipe fitting axial direction of now eccentric adjusting sleeve are consistent, when bolt head enters inside mounting hole, by bolt shank, bolt head is rotated 180 °, and press pipe fitting inner wall, then clamping washer on mounting hole outer surface pad, use nut check more below, with being threaded of bolt, bolt head is pressed on tube wall by nut, thus the effectively monolateral connection of implementation structure part and fastening.The present invention can realize one-sided operation, complete the connection of structural member and fastening, and can realize recycling.
Description
Technical field
The present invention relates to a kind of can be used for structural member connect fastening in carry out the bolt fastener of monolateral installation, belong to civil construction project, mechanical assembly technique field.
Background technique
Current in civil construction and mechanical erection field, fastening installation requirements amount is connected to structural member large.With regard to the bolt generally used at present, when implementing to connect terminal operation to component, staff needs, simultaneously in the operation of component both sides, namely to insert nut bolt in side, then at opposite side instrument by nut screwing clamping.This method for fastening connection structure is simple, easy to operate, carry, but be only applicable in opening section component, in some special occasions, such as to closed cross-section member or inconvenience when the component that other side operates connects fastening, just cannot use this conventional bolt and nut method for fastening connection.Such as: in steel-pipe construction and concrete filled steel tube, beam-column connection place, because Steel Cylindrical Column is closed section, can not operate on both sides, can only one-sided connection, this conventional bolt and nut therefore cannot be adopted to connect fastening and to carry out fastening installation.And the domestic and international monolateral locking device for plate, pipe connection is little at present, and need more complicated setting tool and more loaded down with trivial details installation steps.
Summary of the invention
The present invention is the deficiency for avoiding existing for above-mentioned prior art, provides a kind of eccentric rotation-type unilateral bolt fastener, realizes monolateral enforcement terminal operation, also can as required, for convenience detach, reusable.
The eccentric rotation-type unilateral bolt fastener that the present invention proposes, described device is made up of bolt 1, eccentric adjusting sleeve 2, pad 3 and nut 4, it is characterized in that bolt head 1a and the bolt shank 1c of bolt 1 are set for the eccentric, the arc surface that the surface of contact 1b of bolt head 1a matches with pipe fitting inner wall when being and installing, bolt shank 1c is provided with screw thread, eccentric adjusting sleeve 2 and bolt shank 1c match, and its internal diameter equals the bolt diameter of axle, and its external diameter equals bolt head diameter, and the two has identical throw of eccentric, during installation, first bolt shank 1c is passed eccentric adjusting sleeve 2, swivel bolt 1 or eccentric adjusting sleeve 2, make the dead in line of bolt head 1a and eccentric adjusting sleeve 2 cylindrical, then the two is together penetrated the mounting hole of pipe fitting 6 and the superimposed composition of plate 5, notice that throw of eccentric direction and pipe fitting 6 axial direction of now eccentric adjusting sleeve 2 are consistent, when bolt head 1a enters inside mounting hole, by bolt shank 1c, bolt head 1a is rotated 180 °, and press pipe fitting 6 inwall, then clamping washer 3 on mounting hole outer surface pad, lock with nut 4 more below, with being threaded of bolt 1, bolt head is pressed on tube wall by nut 4, thus the effectively monolateral connection of implementation structure part and fastening.
In the present invention, in bolt 1, bolt head 1a and bolt shank 1c is set for the eccentric, the arc surface 1b matched with pipe fitting inner wall when the surface of contact of bolt head 1a is and installs.
In the present invention, eccentric adjusting sleeve 2 and bolt shank 1c have identical throw of eccentric, and during the dead in line of bolt head 1a and eccentric adjusting sleeve 2 cylindrical, the two together can pass mounting hole, can be pressed in pipe fitting 6 inwall when bolt head 1a relative eccentric sleeve 2 rotates 180 °.
The structural feature of unilateral bolt fastener of the present invention is: bolt head and the bolt shank of bolt are set for the eccentric, the arc surface matched with pipe fitting inner wall when the surface of contact of bolt head is and installs; Eccentric adjusting sleeve and bolt shank match, and its internal diameter equals the bolt diameter of axle, and its external diameter equals bolt head diameter, and the two has identical throw of eccentric.
Compared with the prior art, beneficial effect of the present invention is:
1, the present invention only needs side operation, just can complete the connection terminal operation of bolt;
2, structure of the present invention is simple, cheap, easy to assembly, easy to implement;
3, the present invention can realize for convenience detach, reusable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 a is the plan view of bolt in the present invention, and Fig. 2 b is the right elevation of Fig. 2 a, and Fig. 2 c is the stereogram of bolt;
Fig. 3 is the stereogram of eccentric adjusting sleeve in the present invention;
Fig. 4 is installation process schematic diagram of the present invention;
Fig. 5 is the plan view after installation of the present invention,
Fig. 6 is the sectional view of Fig. 5.
Number in the figure: 1a bolt head, 1b bolt head installs surface of contact, and 1c bolt shank, 2 eccentric adjusting sleeves, 3 pads, 4 nuts, 5 plates, 6 pipe fittings, outside 7a mounting hole, 7b mounting hole, inside 7c mounting hole.
Embodiment
The present invention is further illustrated by reference to the accompanying drawings below by embodiment.
Embodiment 1: the present invention is made up of bolt 1, eccentric adjusting sleeve 2, pad 3 and nut 4, bolt head 1a and the bolt shank 1c of described bolt 1 are set for the eccentric, the arc surface that the surface of contact 1b of bolt head 1a matches with pipe fitting inner wall when being and installing, bolt shank 1c is provided with screw thread; Eccentric adjusting sleeve 2 and bolt shank 1c match, and its internal diameter equals the bolt diameter of axle, and its external diameter equals bolt head diameter, and the two has identical throw of eccentric.
Mounting type:
1, first bolt shank 1c is passed eccentric adjusting sleeve 2, swivel bolt 1 or eccentric adjusting sleeve 2, make the dead in line of bolt head 1a and eccentric adjusting sleeve 2 cylindrical, then the two is together stretched into mounting hole outside mounting hole, notice that the throw of eccentric direction of now eccentric adjusting sleeve 2 and pipe fitting 6 axial direction are consistent;
2, when bolt head 1a enters inside mounting hole, by bolt shank 1c, bolt head 1a is rotated 180 °, and press pipe fitting 6 inwall;
3, then clamping washer 3 on mounting hole outer surface pad, after lock with nut 4 again, with being threaded of bolt 1, bolt head is pressed on tube wall by nut 4, completes connection between structural member and fastening.
4, during dismounting, after unscrewing nut 4, take off nut 4 and pad 3, bolt head 1a is rotated 180 ° toward mounting hole medial movement by operating screw bar 1c a little, just can bolt and eccentric adjusting sleeve be taken out in the lump smoothly.
Claims (1)
1. an eccentric rotation-type unilateral bolt fastener, be made up of bolt (1), eccentric adjusting sleeve (2), pad (3) and nut (4), it is characterized in that bolt (1) is made up of bolt head (1a) and bolt shank (1c), described bolt head (1a) and bolt shank (1c) are set for the eccentric, the arc surface that the surface of contact (1b) of bolt head (1a) matches with pipe fitting (6) inwall when being and installing, bolt shank (1c) is provided with screw thread, eccentric adjusting sleeve (2) and bolt shank (1c) match, and its internal diameter equals the bolt shank diameter of axle, and its external diameter equals bolt head diameter, and the two has identical throw of eccentric, during installation, bolt shank (1c) is through eccentric adjusting sleeve (2), swivel bolt (1) or eccentric adjusting sleeve (2), make the dead in line of bolt head (1a) and eccentric adjusting sleeve (2) cylindrical, then the two is together passed the mounting hole of pipe fitting (6) and plate (5) superimposed composition, throw of eccentric direction and pipe fitting (6) axial direction of eccentric adjusting sleeve (2) need be consistent, when bolt head (1a) enters inside mounting hole, by bolt shank (1c), bolt head (1a) is rotated 180 °, and press pipe fitting (6) inwall, fastening gasket (3) on mounting hole outer surface pad, lock with nut (4), by nut (4) and bolt (1) be threaded bolt head is pressed on pipe fitting (6) tube wall on, the monolateral connection of implementation structure part and fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310587223.8A CN103615458B (en) | 2013-11-21 | 2013-11-21 | A kind of eccentric rotation-type unilateral bolt fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310587223.8A CN103615458B (en) | 2013-11-21 | 2013-11-21 | A kind of eccentric rotation-type unilateral bolt fastener |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103615458A CN103615458A (en) | 2014-03-05 |
| CN103615458B true CN103615458B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310587223.8A Active CN103615458B (en) | 2013-11-21 | 2013-11-21 | A kind of eccentric rotation-type unilateral bolt fastener |
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Families Citing this family (8)
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| CN104002277B (en) * | 2014-05-19 | 2016-04-06 | 同济大学 | A kind of split type nested monolateral fastener installation tool |
| CN109008418B (en) * | 2015-08-13 | 2021-01-05 | 郑牧之 | Round palm-shaped trampoline and manufacturing method thereof |
| CN106438644B (en) * | 2016-11-04 | 2018-06-29 | 同济大学 | A kind of eccentric turn round cuts damage type self-retaining unilateral bolt fastener |
| CN106801695A (en) * | 2017-03-03 | 2017-06-06 | 四川东树新材料有限公司 | A kind of fastener and fastening method of unilateral low-angle flange connection |
| CN109459445A (en) * | 2018-12-19 | 2019-03-12 | 杭州戬威机电科技有限公司 | Fan blade of wind driven generator scanning device |
| CN110345140A (en) * | 2019-08-01 | 2019-10-18 | 瑞安市新华机械标准件厂 | Positive and negative bidirectional fastening screw |
| CN111785561B (en) * | 2020-04-02 | 2022-09-30 | 平高集团有限公司 | Control switch for controllable lightning arrester and operating mechanism fixing structure thereof |
| CN111927870A (en) * | 2020-07-31 | 2020-11-13 | 国住人居工程顾问有限公司 | Assembly type unilateral bolt assembly |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6997658B2 (en) * | 2003-10-20 | 2006-02-14 | Fly David E | Alignment pin and fastener with bi-directional clamping |
| CN201164434Y (en) * | 2008-03-07 | 2008-12-17 | 柳志芳 | Installation structure of closet cover board |
| CN201507052U (en) * | 2009-09-29 | 2010-06-16 | 泛华建设集团有限公司 | Removable inner curtain wall eccentric screw bolt connection hanging element |
| CN202451568U (en) * | 2012-01-20 | 2012-09-26 | 重庆长安汽车股份有限公司 | Automobile chassis four-wheel positioning parameter adjusting bolt assembly |
| JP5122009B1 (en) * | 2012-04-13 | 2013-01-16 | 株式会社ナニワ製作所 | Mounting fixing device and mounting fixing method |
| CN202991777U (en) * | 2012-12-15 | 2013-06-12 | 周述文 | Three-eccentric combination bolt |
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| CN103615458A (en) | 2014-03-05 |
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