CN102840215B - A kind of Novel bolt nut protective structure - Google Patents
A kind of Novel bolt nut protective structure Download PDFInfo
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- CN102840215B CN102840215B CN201210349171.6A CN201210349171A CN102840215B CN 102840215 B CN102840215 B CN 102840215B CN 201210349171 A CN201210349171 A CN 201210349171A CN 102840215 B CN102840215 B CN 102840215B
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- interior hoop
- cover body
- nut
- groove
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Abstract
The present invention relates to a kind of Novel bolt nut protective structure, comprise the cover body detained and cover on to be protected, it is characterized in that being provided with between described cover body and described to be protected hoop in annular, be provided with suitable projection and groove between the madial wall of this interior hoop and the outer side wall of described to be protected, by the cooperation of projection and groove, described interior hoop and described to be protected linked together; Described cover body be threaded described interior hoop and button cover on outside described interior hoop.Compared with prior art; the present invention has established a screwed interior hoop at nut overcoat to be protected; this interior hoop is connected on to be protected by the cooperation of groove and projection tightly; then by screw thread compact siro spinning technology cover body; therefore global design is simple, convenient disassembly; effectively can prevent cover body from departing to be protected, comprehensive protective action is served to the anticorrosion of bolt and nut, and the use of safety cover provided by the present invention is by the impact of screw piece structure, geographical position and external environment.
Description
Technical field
The present invention relates to a kind of Novel bolt nut protective structure.
Background technique
Bolt and nut, as a kind of fastening piece, is widely used in the various industries such as bridge, railway, machinery.Bolt and nut on various equipment due to long term exposure in atmosphere, oxidizedly very soon to get rusty, thus affect use and the Security of equipment.In order to effectively control the corrosion of bolt and nut, need to carry out anticorrosion to the outer surface of bolt and nut.The most frequently used bolt and nut anti-corrosion method is at bolt and nut external coating rust preventive oil or rust proof paint, this method can obtain good corrosion-resisting function at short notice, but the impact and occurring easily by outside climatic, temperature of rust proof paint, rust preventive oil comes off, leakage, working life is shorter, needs regularly to brush.
For this reason, people improve protectiving scheme, use protective housing buckle cover on bolt and nut antirust.Protective housing due to simple to operate, convenient disassembly, and can effectively stop extraneous air to contact with bolt and nut with moisture, can digital preservation screw piece be widely used not by corrosion.Bolt and nut protective housing known at present, what have directly makes the profile protective housing identical with bolt and nut, and upper part has the screw thread suitable with bolt, and it is connected with the partial threads of bolt evagination.This protective roof structure is fairly simple, installs and also facilitates, but it is longer to need bolt to stretch out the length of nut.And it is shorter to stretch out nut length for bolt, this kind of protective housing just can not well and screw piece fix.Further, the impact of this protective housing owing to being expanded with heat and contract with cold, also has certain requirement to Environmental Conditions; If be applied on marine carrier, time at sea wind is large, protective housing is easy to by screw piece of blowing off, and needs to be fixed further protective housing by additional fastening piece.
Also have so a kind of bolt and nut protective housing at present, it adopts with the cover body of bolt and nut external form nominal size interference fit antirust, and inner chamber and the hexagon nut of this cover body are slidably matched, and two ends are fixed by rivet.But this protective housing uses rivet to fix, although overcome the problem that bolt exposes size short protective housing difficulty location, also can marine carrier be applied to, rivet is all fabricated metals and is also easy to be corroded, and therefore its use is still subject to certain limitation.
Summary of the invention
Technical problem to be solved by this invention provides a kind of ambient adaptability strong and the Novel bolt nut protective structure that can not come off under misoperation External Force Acting for the present situation of prior art.
The present invention solves the problems of the technologies described above adopted technological scheme: this Novel bolt nut protective structure, comprise the cover body detained and cover on to be protected, it is characterized in that being provided with between described cover body and described to be protected hoop in annular, be provided with suitable projection and groove on the madial wall of this interior hoop and between the outer side wall of described to be protected, by the cooperation of projection and groove, described interior hoop and described to be protected linked together; Described cover body be threaded described interior hoop and button cover on outside described interior hoop.
Described projection can be arranged on the inner circle wall of described interior hoop, and accordingly, described groove is arranged on the outer side wall of described to be protected.
Or described groove can be arranged on the inner circle wall of described interior hoop, and accordingly, described projection is arranged on the outer side wall of described to be protected.
Above-mentioned two schemes, groove and projection can be designed to loop configuration; Also can be respectively multiple, circumferentially spaced apart.If groove or projection are arranged on the nut side of to be protected; must customize especially nut; preferably; the pad below the nut being positioned at described to be protected can be arranged with on the bolt of described to be protected; the external diameter of this pad is less than the external diameter of the nut of described to be protected, and both differences form described groove.By pad formation groove different from the external diameter of nut, avoid the processing of groove.
Can also be arranged with on the bolt of described to be protected be positioned at described to be protected nut below and the different annular gasket of two external diameters, the groove described in the difference of the external diameter of these two pads is formed.
Preferably, described groove can open the nut side bottom place at described to be protected, and the distance that this structure makes interior hoop depart from slip needed for nut is the longest, further ensures the Assembly stability of interior hoop and nut.
The assembling of binding round conveniently and reduction machining accuracy, the sidewall of described interior hoop has longitudinally through crack, to facilitate the installation between interior hoop and nut.Certainly, if the elasticity that interior hoop is certain because own material has, above-mentioned crack can need not be offered on interior hoop; pass through natural resiliency; make interior cuff outside protected, the effect of hoop selfer power in simultaneously utilizing, interior hoop and to be protected can be made again to snap together tightly.
As the improvement of such scheme, described groove and described projection are interference fit, to ensure the stability connected between interior hoop and nut.
Preferably, in described cover body, dope can be filled with, to ensure antiseptic effect further.
In above-mentioned each scheme, described cover body and described interior hoop adopt same material preparation, or cover body and interior hoop adopt the foreign material of similar thermal expansion coefficient to make, and to expand with heat and contract with cold caused relaxation phenomenon to avoid different materials.
Compared with prior art; the present invention has established a screwed interior hoop at nut overcoat to be protected; this interior hoop is connected on to be protected by the cooperation of groove and projection tightly; then by screw thread compact siro spinning technology cover body; therefore global design is simple, convenient disassembly; effectively can prevent cover body from departing to be protected, comprehensive protective action is served to the anticorrosion of bolt and nut, and the use of safety cover provided by the present invention is by the impact of screw piece structure, geographical position and external environment.
Accompanying drawing explanation
Fig. 1 is the longitudinal sectional view of embodiment of the present invention assembly structure;
Fig. 2 and Fig. 3 is the sectional view of the other two kinds of structures of the embodiment of the present invention;
Fig. 4 is the plan view of inventive embodiments assembly structure;
Fig. 5 is the plan view of interior hoop in Fig. 1 (or Fig. 3) embodiment.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
As shown in Figure 1, Figure 4 and Figure 5, this Novel bolt nut protective structure for surface exposed through equipment 5 of the bolt 1 of to be protected of protection, the nut 2 of to be protected is threaded on bolt 1; The first pad 3 and the second pad 4 is arranged with outside bolt 1; first pad 3 and the second pad 4 link together; and the external diameter of the first pad 3 is less than the external diameter of the second pad 4; first pad 3 and the second pad 4 are between nut 2 and the surface of equipment 5; both external diameter differences form the groove in the present embodiment, are namely arranged on the annular groove on to be protected outer side wall.
To be protected is arranged with hoop 7 in annular outward.The madial wall of this interior hoop 7 has the annular lug 8 suitable with above-mentioned annular groove, and interior hoop 7 has longitudinally through crack 6, the annular lug 8 on interior hoop is interference fit with annular groove.The outer side wall of interior hoop has outside thread, and interior hoop 7 is threaded togather with cover body 9.
The madial wall of cover body 9 has internal thread, and cover body 9 is threaded on interior hoop 7, and whole interior hoop 7 and bolt 1, nut 2 are all buckled and covered in cover body 9.The end face of the cover body in the present embodiment has certain tapering, for landing rainwater.
During installation, first interior hoop 7 is broken into two with one's hands a little with hand, be enclosed within nut 2, the annular lug 8 on interior hoop 7 is contained in annular groove and forms interference fit, thus interior hoop 7 is fixed on nut; Be coated with in cavity rich in cover body 9 and spread dope 10, then cover body 9 is tightened on interior hoop 7, until cover body 9 wraps interior hoop 7 and two pads completely.
Need repairing equipment or change cover body time, directly cover body 9 is screwed down from interior hoop, simple, convenient.
Above-mentioned annular groove and annular lug can also be designed to the structure shown in Fig. 2 or Fig. 3.
As shown in Figure 2, annular groove is opened on interior hoop 12, and annular lug 11 is arranged on the periphery wall of nut.This method needs to customize especially nut to be protected.Or on the outer side surface of plain nut, form annular lug after turning one deck.
As shown in Figure 3, annular groove also can be opened in the side bottom place of nut, and interior hoop arranges annular lug 13.This method also needs to customize especially nut to be protected.Or get on the bus at the outer side surface of plain nut and cut out annular groove.
Can also adopt: between nut 2 and the surface of equipment 5, added a pad, the external diameter of this pad is less than the external diameter of nut, both difference looping grooves.Annular lug is arranged on interior hoop.The method does not need the structure changing nut, and nut can use standard fitting.
In the present embodiment, cover body 9 and interior hoop 7 adopt identical material preparation; Or cover body 9 and interior hoop 7 adopt the foreign material of similar thermal expansion coefficient to make, and have identical coefficient of thermal expansion and contraction so between the two, to avoid caused relaxation phenomenon of expanding with heat and contract with cold.
Claims (2)
1. a Novel bolt nut protective structure, comprise the cover body detained and cover on to be protected, it is characterized in that being provided with between described cover body and described to be protected hoop in annular, be provided with suitable projection and groove between the madial wall of this interior hoop and the outer side wall of described to be protected, by the cooperation of projection and groove, described interior hoop and described to be protected linked together; Described cover body be threaded described interior hoop and button cover on outside described interior hoop; The sidewall of described interior hoop has longitudinally through crack;
The bolt of described to be protected is arranged with the pad below the nut being positioned at described to be protected, the external diameter of this pad is less than the external diameter of the nut of described to be protected, and both differences form described groove;
Dope is filled with in described cover body;
Described cover body and described interior hoop adopt same material or adopt the foreign material preparation of similar thermal expansion coefficient.
2. Novel bolt nut protective structure according to claim 1, is characterized in that described groove and described projection are interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210349171.6A CN102840215B (en) | 2012-09-20 | 2012-09-20 | A kind of Novel bolt nut protective structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210349171.6A CN102840215B (en) | 2012-09-20 | 2012-09-20 | A kind of Novel bolt nut protective structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102840215A CN102840215A (en) | 2012-12-26 |
| CN102840215B true CN102840215B (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210349171.6A Active CN102840215B (en) | 2012-09-20 | 2012-09-20 | A kind of Novel bolt nut protective structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102840215B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884849A (en) * | 2017-03-02 | 2017-06-23 | 保定华铁电气化供电器材设备有限公司 | Anchor bolt antisepsis protector |
| CN109356931A (en) * | 2018-12-12 | 2019-02-19 | 保定华铁电气化供电器材设备有限公司 | A kind of anticreep pedestal and the bolt anti-corrosion protective device with anticreep pedestal |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2531155A1 (en) * | 1982-07-27 | 1984-02-03 | Delta Mics | Device for preventing a nut, a screw or a fixing bolt from loosening. |
| JPH0354377U (en) * | 1989-09-30 | 1991-05-27 | ||
| JP3054377U (en) * | 1998-03-25 | 1998-12-04 | 光陽産業株式会社 | Bolt and nut removal prevention bracket |
| DE29906012U1 (en) * | 1999-04-01 | 1999-07-08 | Heintges | protective cap |
| CN2413081Y (en) * | 2000-01-11 | 2001-01-03 | 汪洋 | Guard nut |
| CN1727702A (en) * | 2004-07-30 | 2006-02-01 | 锐奥克斯·安锐 | Antitheft nut and bolt assembly |
| CN200955544Y (en) * | 2006-08-10 | 2007-10-03 | 王有刚 | Screw cap protective sleeve |
| CN201141385Y (en) * | 2007-10-29 | 2008-10-29 | 张德丰 | Bolt protection device |
| CN202851603U (en) * | 2012-09-20 | 2013-04-03 | 浙江龙驰防腐技术有限公司 | Novel bolt and nut protective structure |
-
2012
- 2012-09-20 CN CN201210349171.6A patent/CN102840215B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102840215A (en) | 2012-12-26 |
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