CN102094886A - Bolted connection structure and lock washer and luggage rack thereof - Google Patents
Bolted connection structure and lock washer and luggage rack thereof Download PDFInfo
- Publication number
- CN102094886A CN102094886A CN2011100260236A CN201110026023A CN102094886A CN 102094886 A CN102094886 A CN 102094886A CN 2011100260236 A CN2011100260236 A CN 2011100260236A CN 201110026023 A CN201110026023 A CN 201110026023A CN 102094886 A CN102094886 A CN 102094886A
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- bolt
- lock washer
- screwed
- connected piece
- luggage rack
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Abstract
The invention provides a bolted connection structure capable of effectively reducing bolt movement and a lock washer thereof, and an automobile luggage rack with the structure. The center of the lock washer (1) is provided with a round hole (2), and the diameter of the round hole (2) is slightly larger than the external diameter of threads of a bolt (3) to be locked by the round hole (2), so that the round hole (2) and the bolt (3) are in interference fit after the bolt (3) is screwed in; and the periphery of the round hole (2) is provided with a plurality of grooves (4) among which a plurality of deformation teeth (5) are formed. In the bolted connection structure suitable for the automobile luggage rack, the bolt (3) passes through two connected pieces (6 and 7), the lock washer (1) is screwed in or pressed in the bolt (3), and the deformation teeth (5) are deformed to be embedded into the threads of the bolt (3); or the bolt (3) passes through an upper connected piece (6), the lock washer (1) is screwed in or pressed in the bolt (3), the bolt (3) passes through a lower connected piece (7), and a nut (8) is screwed in.
Description
Technical field
The present invention relates to a kind of bolt fastening structure and lock washer thereof, and adopt the automobile luggage racks of this structure.
Background technique
Generally speaking, in the time will connecting two parts with screw bolt and nut that can be free movable, if non-structure comes caging bolt, bolt can up be scurried when then nut being installed, and causes inconvenience is installed.Especially product the roof rack luggage rack is installed when picture, one of screw bolt and nut outside car, one in car, when being inconvenient to pin bolt, just particularly strong to the demand that can limit the minor structure that bolt up scurries.
Common structure has some locked spacers, self-locking structure etc., but have in limited time when the fitting operation space, how stop has just become problem.
The present invention solves this problem just.
Summary of the invention
Technical problem to be solved by this invention is at the above-mentioned state of the art, and a kind of bolt fastening structure and lock washer thereof of the play of bolt effectively is provided, and adopts the automobile luggage racks of this structure.
The present invention solves the problems of the technologies described above the technological scheme that is adopted:
A kind of bolted lock washer (1) that is used for, its center is provided with a circular hole (2), the diameter of described circular hole (2) is a bit larger tham the major diameter of thread of its bolt of wanting stop (3), form interference fit to guarantee that it is screwed between back and the described bolt, offer some grooves (4) around the described circular hole (2), form several distortion teeth (5) between the described groove (4).
Described lock washer (1) is the shape of intermediate projections.
Described groove (4) radially offering along described circular hole (2).
Described groove (4) is 6, and is circumferentially uniform along circular hole (2).
Described lock washer (1) for circular symmetry ground prune about formed kidney shape behind two-part, wherein two of above-below direction grooves (4) are shorter than other groove (4).
A kind of bolt fastening structure, comprise two connected piece (6,7), bolt (3) and nuts (8) that have attachment hole, described connected piece (6,7) comprises last connected piece (6) that is positioned at the top and the following connected piece (7) that is positioned at the below, it is characterized in that, described bolt (3) passes described two connected pieces (6,7), nut (8) is preceding being screwed into, earlier be screwed into or be pressed into aforesaid lock washer (1) to described connected piece (7) surface down on described bolt (3), described distortion tooth (5) deforms and is embedded in the screw thread of described bolt (3); Perhaps, described bolt (3) passes the described connected piece (6) of wherein going up earlier, is screwed into or is pressed into aforesaid lock washer (1) to the described connected piece (6) of going up on described bolt (3), after pass described connected piece (7) down again and be screwed into nut (8).Like this, bolt is just limited, has reached the effect of stop, not play up.
Attachment hole position, described two ends lower surface is provided with deep gouge (9), and described lock washer (1) sinks to wherein.Deep gouge (9) has and the corresponding shape of lock washer (1).
A kind of confession is fixedly mounted on the roof rack luggage rack assembly on the automobile ceiling (10), comprise and be used for two ends (11) that it is fixedlyed connected with automobile ceiling (10), each end (11) all has attachment hole (12), bolt (3) passes described end (11) from top to down from described attachment hole, its threaded end exposes sufficient length for fixedlying connected with described ceiling (10), is screwed into or is pressed into aforesaid lock washer (1) to described end (11) at the described threaded end that exposes.
Attachment hole position, described two ends lower surface is provided with deep gouge (9), and described lock washer (1) sinks to wherein.
Described lock washer (1) for circular symmetry ground prune about formed kidney shape behind two-part, described deep gouge (9) also is corresponding kidney shape.
Adopt the bolt fastening structure of technical solution of the present invention, bolt play up not when nut is installed; Installation process is very efficient and convenient.And has a following advantage: when last connected piece and following connected piece are that two tame enterprises make the back respectively when assembling, the MANUFACTURER of last connected piece can with go up connected piece and bolt, lock washer offers down-stream enterprise's general assembly after assembling, and is convenient to sharing out the work and helping one another of supporting enterprise.Its further be provided with deep gouge scheme, bolt 3 is play up not only, nor can rotate along turning direction, stopping effect is better.The present invention especially is suitable for being connected of automobile luggage racks and ceiling.
Description of drawings
Fig. 1 is the circular lock washer front schematic view of the present invention.
Fig. 2 is a kidney shape lock washer front schematic view of the present invention; Fig. 3 is its A-A sectional drawing; Fig. 5 is its schematic perspective view.
Fig. 4 is a bolt schematic perspective view of the present invention; The nut schematic perspective view of Fig. 6 for matching with it.
Fig. 7 is first kind of bolt fastening structure schematic representation of the present invention
Fig. 8 is second kind of bolt fastening structure schematic representation of the present invention.
Fig. 9 is the third bolt fastening structure schematic representation of the present invention.
Figure 10-13 is the concrete Application Example schematic representation of the present invention at the car boot frame component, wherein preceding associated part separates schematic representation to Figure 10 for bolt connects, Figure 11 connects back roof rack luggage rack end view for bolt, Figure 12 is its linkage structure generalized section, and Figure 13 is a roof rack luggage rack assembly finished product schematic perspective view.
Embodiment
A kind ofly be used for bolted lock washer 1, its basic structure scheme as shown in Figure 1, its center is provided with a circular hole 2, the diameter of circular hole 2 is a bit larger tham the major diameter of thread of its bolt of wanting stop 3, forms interference fit to guarantee that it is screwed between back and the described bolt; Around the circular hole 2 along described circular hole (2) radially offer 6 grooves 4, circumferentially uniform along circular hole (2), thus thereby make and form 6 distortion teeth 5 between the groove 4.Below be referred to as circular lock washer.
As Fig. 2, Fig. 3, lock washer 1 shown in Figure 5, be the improvement project on the basis of as shown in Figure 1 basic structure scheme; Improvement is: 1, described lock washer (1) for circular symmetry ground prune about formed kidney shape behind two-part, wherein two of above-below direction grooves 4 are shorter than other groove 4, as Fig. 2, shown in Figure 5; 2, lock washer (1) is the shape of intermediate projections, as shown in Figure 3.Below be referred to as kidney shape lock washer.
With the supporting bolt (3) of lock washer 1 as shown in Figure 4, nut 8 is as shown in Figure 6.
First kind of bolt fastening structure: as shown in Figure 7, comprise two connected piece, bolt 3 and nuts 8 that have attachment hole, connected piece comprises last connected piece 6 that is positioned at the top and the following connected piece 7 that is positioned at the below, bolt 3 passes two connected pieces, before being screwed into nut 8, earlier be screwed into or be pressed into aforesaid lock washer 1 to described connected piece 7 surfaces down on described bolt 3, lock washer 1 can be selected circular lock washer or kidney shape lock washer for use; Described distortion tooth 5 deforms and is embedded in the screw thread of described bolt 3, and bolt 3 is just limited, has reached the effect of stop, not play up.
Second kind of bolt fastening structure: first kind of bolt fastening structure done following improvement, and following connected piece 7 lower surfaces are provided with deep gouge 9, and described lock washer 1 sinks to wherein during connection.Deep gouge 9 has and lock washer 1 corresponding shape.Lock washer 1 can be selected circular lock washer or kidney shape lock washer for use.But, select for use kidney shape lock washer to have better stopping effect, as shown in Figure 8, select kidney shape lock washer 1 for use, corresponding deep gouge 9 also is a kidney shape, is positioned at wherein and can not rotates for kidney shape lock washer 1; So, bolt 3 is play up not only, nor can rotate along turning direction, and stopping effect is better.Certainly, lock washer 1 also can be selected other shape for use with deep gouge 9, as long as non-circular, has the effect that prevents its rotation equally.
Perhaps, described bolt 3 passes the described connected piece 6 of wherein going up earlier, is screwed into or is pressed into aforesaid lock washer 1 supreme connected piece 6 on bolt 3, after pass down connected piece 7 again and be screwed into nut 8, as shown in Figure 9, have same stopping effect.And has a following advantage: when last connected piece 6 and following connected piece 7 are that two tame enterprises make the back respectively when assembling, the MANUFACTURER of last connected piece 6 can offer down-stream enterprise's general assembly after connected piece 6 assembles with bolt 3, lock washer 1 with going up, and is convenient to sharing out the work and helping one another of supporting enterprise.
Figure 10-13 is the concrete Application Example schematic representation of the present invention at the car boot frame component, this roof rack luggage rack assembly comprises and is used for two ends 11 that it is fixedlyed connected with automobile ceiling 10, its link comprises end 11, bolt 3, lock washer 1, and as Figure 10, lock washer 1 is selected kidney shape for use; Each end 11 all has attachment hole position, 12, two ends of attachment hole lower surface and is provided with corresponding kidney shape deep gouge (9), sinks to wherein for kidney shape lock washer 1.During connection, bolt 3 passes end 11 from top to down from attachment hole, and its threaded end exposes sufficient length for fixedlying connected with item fluffy 10, is screwed into or is pressed into aforesaid lock washer 1 at the threaded end that exposes and sink in deep gouge (9), as shown in figure 11.Thereafter, this roof rack luggage rack assembly also needs to install upper end cap 13 additional in two end 11, as shown in figure 13, as the supplier as the roof rack luggage rack assembly, this roof rack luggage rack assembly can be offered down-stream enterprise and finish itself and automobile ceiling 10 are linked and packed.
The linkage structure of this roof rack luggage rack assembly and automobile ceiling 10 as shown in figure 12, Figure 12 is that the axial location B of this roof rack luggage rack assembly bolt 3 when being fixedly mounted on automobile ceiling 10 states is to sectional drawing, main part comprises above-mentioned luggage frame component and automobile ceiling 10, be equipped with a protrusion piece 15 that installs and fixes usefulness below the installation base plate 14 of two ends 11 of this roof rack luggage rack assembly, base plate 14 be installed and protruded piece 15 jointly as last connected piece 6; The connection part conduct of ceiling 10 is connected piece 7 down.Protrude piece 15 because two ends 11 of this roof rack luggage rack are provided with, the connection part of ceiling 10 also is provided with corresponding recesses; Concavo-convex cooperation like this can make it interconnect firm stable more, especially this means of transportation that is in vibrations under steam of automobile.In addition, immerse, between the connection part of protrusion piece 15 and ceiling 10 one deck waterproof foamed cotton layer 16 is set in order to prevent rainwater.
As can be seen from Figure 12, if there is not the bolt chocking construction, when being screwed into nut 8, because still there is a segment distance on the top of bolt 3 from the inner roof wall of end cap 13, bolt 3 is play and rotate along turning direction up, make that the connection of roof rack luggage rack assembly and automobile ceiling 10 is very inconvenient, be difficult to it is tightened; And use this roof rack luggage rack assembly, the installation process of itself and automobile ceiling 10 is just very efficient and convenient, connection part at automobile ceiling 10 is to fill up foamed cotton layer 16 in the groove, this roof rack luggage rack assembly is placed on the connection part of automobile ceiling 10, the threaded end of the bolt 3 that will expose inserts in the attachment hole of ceiling 10, make the threaded end of bolt 3 will pass ceiling 10, just can in car, be screwed into nut 8 easily, because the effect of kidney shape lock washer 1 and corresponding deep gouge 9, bolt 3 is play up not only, nor can rotate along turning direction, can like a cork it be tightened.
Claims (10)
1. one kind is used for bolted lock washer (1), its center is provided with a circular hole (2), the diameter of described circular hole (2) is a bit larger tham the major diameter of thread of its bolt of wanting stop (3), form interference fit to guarantee that it is screwed between back and the described bolt, it is characterized in that, offer some grooves (4) around the described circular hole (2), form several distortion teeth (5) between the described groove (4).
2. lock washer as claimed in claim 1 (1) is characterized in that, described lock washer (1) is the shape of intermediate projections.
3. lock washer as claimed in claim 1 (1) is characterized in that, described groove (4) radially offering along described circular hole (2).
4. lock washer as claimed in claim 3 (1) is characterized in that, described groove (4) is 6, and is circumferentially uniform along circular hole (2).
5. lock washer as claimed in claim 4 (1) is characterized in that, described lock washer (1) for circular symmetry ground prune about formed kidney shape behind two-part.
6. bolt fastening structure, comprise two connected pieces (6 that have attachment hole, 7), bolt (3) and nut (8), described connected piece (6,7) comprise last connected piece (6) that is positioned at the top and the following connected piece (7) that is positioned at the below, it is characterized in that, described bolt (3) passes described two connected pieces (6,7), nut (8) is preceding being screwed into, earlier on described bolt (3), be screwed into or be pressed into as each described lock washer (1) of claim 1 to 5 to as described in connected piece (7) surface down, described distortion tooth (5) deforms and is embedded in the screw thread of described bolt (3); Perhaps, described bolt (3) passes the described connected piece (6) of wherein going up earlier, on described bolt (3), be screwed into or be pressed into as each described lock washer (1) of claim 1 to 5 to as described in go up connected piece (6), after pass described connected piece (7) down again and be screwed into nut (8).
7. bolt fastening structure as claimed in claim 6 is characterized in that, described following connected piece (7) lower surface or last connected piece (6) lower surface are provided with deep gouge (9), and described lock washer (1) sinks to wherein.
8. a confession is fixedly mounted on the roof rack luggage rack assembly on the automobile ceiling (10), comprise and be used for two ends (11) that it is fixedlyed connected with automobile ceiling (10), each end (11) all has attachment hole (12), bolt (3) passes described end (11) from top to down from described attachment hole, its threaded end exposes sufficient length for fixedlying connected with described ceiling (10), it is characterized in that, the described threaded end that exposes be screwed into or be pressed into as each described lock washer (1) of claim 1 to 5 to as described in end (11).
9. roof rack luggage rack assembly as claimed in claim 8 is characterized in that, described two ends (11) attachment holes (12) position lower surface is provided with deep gouge (9), and described lock washer (1) sinks to wherein.
10. roof rack luggage rack assembly as claimed in claim 9 is characterized in that, described lock washer (1) for circular symmetry ground prune about formed kidney shape behind two-part, described deep gouge (9) also is corresponding kidney shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110026023 CN102094886B (en) | 2011-01-20 | 2011-01-20 | Bolted connection structure and lock washer and luggage rack thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110026023 CN102094886B (en) | 2011-01-20 | 2011-01-20 | Bolted connection structure and lock washer and luggage rack thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102094886A true CN102094886A (en) | 2011-06-15 |
| CN102094886B CN102094886B (en) | 2013-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110026023 Active CN102094886B (en) | 2011-01-20 | 2011-01-20 | Bolted connection structure and lock washer and luggage rack thereof |
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| Country | Link |
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| CN (1) | CN102094886B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359466A (en) * | 2011-09-16 | 2012-02-22 | 贵州航太精密制造有限公司 | Stopper ring used on quick-release fastener |
| CN102913530A (en) * | 2011-08-02 | 2013-02-06 | 通用电气公司 | Self locking nut and bolt assembly |
| CN103352910A (en) * | 2013-07-30 | 2013-10-16 | 昆山宜德金属工业有限公司 | Snap ring for noise damping link mechanism of track protecting cover of numerical control machine tool |
| CN103362926A (en) * | 2013-08-05 | 2013-10-23 | 无锡市张泾宇钢机械厂 | Elastic sheet of arch structure |
| EP2871097A1 (en) * | 2013-11-07 | 2015-05-13 | Thule Sweden AB | A load carrier foot |
| US9291061B2 (en) | 2012-04-13 | 2016-03-22 | General Electric Company | Turbomachine blade tip shroud with parallel casing configuration |
| CN108649513A (en) * | 2018-05-27 | 2018-10-12 | 徐峰 | Reduce the mask of corona discharge |
| CN108736462A (en) * | 2018-05-27 | 2018-11-02 | 徐峰 | Reduce the device of corona discharge |
| CN108736424A (en) * | 2018-05-27 | 2018-11-02 | 徐峰 | The anticorona mask of wire clamp |
| WO2020143276A1 (en) * | 2019-01-11 | 2020-07-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Loose-proof screw assembly and fastened structure comprising the same |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB538426A (en) * | 1939-05-05 | 1941-08-01 | Tinnerman Products Inc | Improvements relating to locking devices for rotary clamping members |
| CN1043635A (en) * | 1988-12-28 | 1990-07-11 | 铃诚有限公司 | The packing ring that the meccano parts are used |
| US5170920A (en) * | 1991-02-15 | 1992-12-15 | Masco Corporation | Luggage rack |
| CN2181589Y (en) * | 1993-07-27 | 1994-11-02 | 宦根宝 | Tooth wedge type anti-loose fastener |
| US20050135896A1 (en) * | 2003-12-23 | 2005-06-23 | Federal-Mogul World Wide, Inc. | Push-on screw-off attachment device |
| US6966722B1 (en) * | 2003-05-16 | 2005-11-22 | B&W Custom Truck Beds, Inc. | Adaptor for reducing and locating bolt hole in a larger opening |
| CN1764009A (en) * | 2004-10-18 | 2006-04-26 | 株式会社友华 | Structure for mounting antenna base on vehicle body |
| EP1705066A1 (en) * | 2005-03-21 | 2006-09-27 | SportRack GmbH | Attachment device |
| CN201908933U (en) * | 2011-01-20 | 2011-07-27 | 宁波信泰机械有限公司 | Bolt connection structure, stop washer thereof and baggage rack |
-
2011
- 2011-01-20 CN CN 201110026023 patent/CN102094886B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB538426A (en) * | 1939-05-05 | 1941-08-01 | Tinnerman Products Inc | Improvements relating to locking devices for rotary clamping members |
| CN1043635A (en) * | 1988-12-28 | 1990-07-11 | 铃诚有限公司 | The packing ring that the meccano parts are used |
| US5170920A (en) * | 1991-02-15 | 1992-12-15 | Masco Corporation | Luggage rack |
| CN2181589Y (en) * | 1993-07-27 | 1994-11-02 | 宦根宝 | Tooth wedge type anti-loose fastener |
| US6966722B1 (en) * | 2003-05-16 | 2005-11-22 | B&W Custom Truck Beds, Inc. | Adaptor for reducing and locating bolt hole in a larger opening |
| US20050135896A1 (en) * | 2003-12-23 | 2005-06-23 | Federal-Mogul World Wide, Inc. | Push-on screw-off attachment device |
| CN1764009A (en) * | 2004-10-18 | 2006-04-26 | 株式会社友华 | Structure for mounting antenna base on vehicle body |
| EP1705066A1 (en) * | 2005-03-21 | 2006-09-27 | SportRack GmbH | Attachment device |
| CN201908933U (en) * | 2011-01-20 | 2011-07-27 | 宁波信泰机械有限公司 | Bolt connection structure, stop washer thereof and baggage rack |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913530A (en) * | 2011-08-02 | 2013-02-06 | 通用电气公司 | Self locking nut and bolt assembly |
| CN102913530B (en) * | 2011-08-02 | 2017-03-01 | 通用电气公司 | Self-locking nut and bolt assembly |
| CN102359466A (en) * | 2011-09-16 | 2012-02-22 | 贵州航太精密制造有限公司 | Stopper ring used on quick-release fastener |
| US9291061B2 (en) | 2012-04-13 | 2016-03-22 | General Electric Company | Turbomachine blade tip shroud with parallel casing configuration |
| CN103352910A (en) * | 2013-07-30 | 2013-10-16 | 昆山宜德金属工业有限公司 | Snap ring for noise damping link mechanism of track protecting cover of numerical control machine tool |
| CN103362926A (en) * | 2013-08-05 | 2013-10-23 | 无锡市张泾宇钢机械厂 | Elastic sheet of arch structure |
| EP2871097A1 (en) * | 2013-11-07 | 2015-05-13 | Thule Sweden AB | A load carrier foot |
| CN108649513A (en) * | 2018-05-27 | 2018-10-12 | 徐峰 | Reduce the mask of corona discharge |
| CN108736462A (en) * | 2018-05-27 | 2018-11-02 | 徐峰 | Reduce the device of corona discharge |
| CN108736424A (en) * | 2018-05-27 | 2018-11-02 | 徐峰 | The anticorona mask of wire clamp |
| WO2020143276A1 (en) * | 2019-01-11 | 2020-07-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Loose-proof screw assembly and fastened structure comprising the same |
| EP3908759A4 (en) * | 2019-01-11 | 2022-09-07 | Telefonaktiebolaget LM Ericsson (publ) | Loose-proof screw assembly and fastened structure comprising the same |
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| CN102094886B (en) | 2013-01-23 |
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