CN203847542U - Bolt cover - Google Patents
Bolt cover Download PDFInfo
- Publication number
- CN203847542U CN203847542U CN201420275288.9U CN201420275288U CN203847542U CN 203847542 U CN203847542 U CN 203847542U CN 201420275288 U CN201420275288 U CN 201420275288U CN 203847542 U CN203847542 U CN 203847542U
- Authority
- CN
- China
- Prior art keywords
- bolt
- bolt cover
- cavity
- shell
- inlay
- 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.)
- Expired - Lifetime
Links
- 238000005260 corrosion Methods 0.000 claims description 19
- 230000007797 corrosion Effects 0.000 claims description 18
- 239000004519 grease Substances 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 8
- 239000007769 metal material Substances 0.000 claims description 7
- 239000002184 metal Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011513 prestressed concrete Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexamethylene diamine Natural products NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- -1 poly-adipoyl hexamethylene diamine Chemical compound 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The utility model provides a bolt cover. The bolt cover comprises a shell. A metal embedded body is embedded in the shell. A threaded hole is formed in the embedded body. A first cavity with an opening in the lower end is arranged at the lower end of the shell. The first cavity is located below the embedded body and communicated with the threaded hole. The cross section area of the first cavity is larger than the cross section area of the threaded hole. The bolt cover is connected with a threaded rod, extending out of a bolt and nut, of a bolt through the threaded hole in the metal embedded body. Metal threads can reliably fix the embedded boy and the shell where the embedded body is embedded. Reliability of connection between the bolt cover and the bolt is ensured.
Description
Technical field
The utility model relates to cover, relates in particular to bolt cover.
Background technique
Bolt is a kind of conventional fastening piece, in various fields, is all widely used.Bolt is after fastening object, and its nut and the threaded stem stretching out from nut are usually exposed in air, and the nut of exposure and threaded stem are easily corroded and get rusty, particularly occasion in the open.For example, in wind power generating set, the flange of wind-driven generator tower frame bottom is generally fixed by bolt and tower foundation, maximization day by day along with wind power generating set, its bolt adopting is usually inside and outside two circles and distributes, the bolt that is wherein positioned at outer ring is positioned at the outside of pylon, easily be subject to the erosion of sleet, usually have the situation of corrosion to occur, threatening the safety of wind power generating set.In order to protect exposed nut and threaded stem, prior art is protective housing in its outer cup generally, and protective housing generally adopts plastic material to make, and by buckle or plastic spiral pit, is connected with bolt.
State in realization in the process of technological scheme, inventor finds that in prior art, at least there are the following problems:
1, the protective housing that adopts buckle means of fixation to be fixed, easily comes off when it is subject to external force, can not form firm being fixedly connected with, and affects the reliability of its work.
2, the protective housing that adopts plastic spiral pit to connect, the poor-performing of its screw thread, plastic whorl is easily destroyed when screwing, and also causes it not to be connected on bolt reliably.
Model utility content
The utility model object is to provide a kind of fixing more reliable bolt cover.
To achieve these goals, the utility model provides a kind of bolt cover, it comprises shell, in described shell, be embedded with the interior inlay of metal material, in described interior inlay, be provided with tapped hole, in the lower end of described shell, be provided with the first cavity of lower ending opening, described the first cavity is positioned at the below of described inlay and is communicated with described tapped hole, and the sectional area of described the first cavity is greater than the sectional area of described tapped hole.
The bolt cover that the utility model provides wherein can also be provided with the second cavity in described shell, and described the second cavity is positioned at the top of described inlay and is communicated with described tapped hole, and the sectional area of described the second cavity is more than or equal to the sectional area of described tapped hole.
The bolt cover that the utility model provides wherein can be provided with oil hole on described shell, and described oil hole is communicated with described the second cavity.
The bolt cover that the utility model provides, wherein said interior inlay can be nut or inner thread steel pipe.
The bolt cover that the utility model provides, wherein said interior inlay can be inner thread steel pipe, on described inner thread steel pipe, is provided with perforation, on described shell, is provided with oil hole, described oil hole is communicated with described perforation.
The bolt cover that the utility model provides, wherein said shell can shutoff described in the upper end of inner thread steel pipe.
The bolt cover that the utility model provides wherein can be provided with seal element on the lower end surface of described shell.
The bolt cover that the utility model provides, wherein said seal element can be seal washer, sealer or magnetic element.
The bolt cover that the utility model provides, the material of wherein said shell can be plastics.
The bolt cover that the utility model provides wherein can be provided with corrosion protection grease in described the second cavity.
The bolt cover that the utility model provides wherein can be filled with corrosion protection grease in described oil hole.
The main beneficial effect of the technique scheme that the utility model provides is, the bolt cover that the utility model provides is connected with the threaded stem stretching out from bolt and nut of bolt by the tapped hole in the interior inlay of metal material, the screw thread of metal material can be reliably fixed interior inlay and the shell that is embedded with interior inlay, guarantees bolt cover and bolted reliability that the utility model provides.When the bolt cover that uses the utility model to provide; the bolt cover that the utility model can be provided covers on the exposed end of bolt; the threaded stem of bolt is screwed in tapped hole after the first cavity; screw afterwards the bolt cover that the utility model provides; the nut of bolt is just accommodated in the first cavity; also fit with bolt object wall around in the end of shell, thereby bolt is protected.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment one bolt cover;
Fig. 2 is the structural representation of the utility model embodiment two bolt cover;
Fig. 3 is the structural representation of the utility model embodiment three bolt cover.
Drawing reference numeral explanation:
1-shell; 11-the first cavity; 12-oil hole; 13-the second cavity; Inlay in 2-; 21-tapped hole; 22-perforation; 3-seal element.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment's bolt cover is described in detail.
Embodiment one
As shown in Figure 1, it is the structural representation of the utility model embodiment one bolt cover, the bolt cover of the present embodiment, it comprises shell 1, in shell 1, be embedded with the interior inlay 2 of metal material, in interior inlay 2, be provided with tapped hole 21, in the lower end of shell 1, be provided with the first cavity 11 of lower ending opening, the first cavity 11 is positioned at the below of inlay 2 and is communicated with tapped hole 21, and the sectional area of the first cavity 11 is greater than the sectional area of tapped hole 21.
The bolt cover of the present embodiment is connected with the threaded stem that stretches out bolt and nut by the tapped hole 21 in the interior inlay 2 of metal material, the screw thread of metal material can be reliably by interior inlay 2 and to be embedded with the shell 1 of interior inlay 2 fixing, guarantee bolt cover and the bolted reliability of the present embodiment.When using the bolt cover of the present embodiment; the bolt cover of the present embodiment can be covered on to the exposed end of bolt; the threaded stem of bolt is screwed in tapped hole 21 after the first cavity 11; screw afterwards the bolt cover of the present embodiment; the nut of bolt is just accommodated in the first cavity 11; also fit with bolt object wall around in the end of shell 1, thereby bolt is protected.Preferably, the sectional area of the first cavity 11 is greater than the sectional area of interior inlay 2.
Preferably, at tapped hole 21 with the first cavity 11 is interior can be provided with corrosion protection grease.Corrosion protection grease can carry out anti-corrosion protection to bolt, and user can spread upon corrosion protection grease on bolt before screwing on the bolt cover of the present embodiment.
The material of shell 1 can be metal or timber.Preferably, the material of shell 1 can be plastics.Adopt the shell of plastic material to be difficult for being corroded, processing technology is also comparatively simple, and cost is lower, can adopt Shooting Technique that interior inlay 2 is just embedded in shell 1 when shell 1 moulding, has reduced the manufacture difficulty of bolt cover.Preferably, the material of shell 1 can be poly-adipoyl hexamethylene diamine (being nylon 66 resin).
The sectional shape of interior inlay 2 can be circular, square, polygonal etc.As shown in Figure 1, preferably, interior inlay 2 can be inner thread steel pipe.The threaded stem that this structure is applicable to bolt stretches out the situation of longer distance from bolt and nut.Particularly in the prestressed concrete foundation of wind power generating set, because the crab-bolt in prestressed concrete foundation will be carried out prestressed stretch-draw, the one section of longer threaded stem that has of crab-bolt stretches out from nut, and inner thread steel pipe can have longer screw-thread fit with threaded stem, makes to connect more firm.
The outer wall of shell 1 can be non-porous structure, when needs maintenance bolt, the bolt cover of the present embodiment can be screwed off from bolt, in tapped hole 21 and the first cavity 11 or on bolt, supplement and smear corrosion protection grease, again the bolt cover of the present embodiment be screwed on again afterwards.Further, as shown in Figure 1, can be provided with perforation 22 on inner thread steel pipe, on shell 1, can be provided with oil hole 12, oil hole 12 is communicated with perforation 22.At bolt during one's term of military service, user can be as required 22 supplements corrosion protection grease through boring a hole from oil hole 12 in inner thread steel pipe, so that bolt is carried out to maintenance under the condition of bolt cover of not dismantling the present embodiment, increase work efficiency, thereby and inner thread steel pipe and the bolt clearance space that can reduce component in shell 1 that is connected closely reduce the consumption of corrosion protection grease and avoid waste.Further, the upper end that shell 1 can shutoff inner thread steel pipe, thus the clearance space that can further reduce like this between shell 1 and the upper end of inner thread steel pipe reduces the consumption of corrosion protection grease and avoids waste.
Preferably, can in oil hole 12, fill corrosion protection grease, corrosion protection grease can play certain plugging action to oil hole 12 like this, prevents that a small amount of rainwater from entering in oil hole 12.
Further, on the lower end surface of shell 1, can be provided with seal element 3.User is when screwing the bolt cover of the present embodiment, the end of shell 1 can crush seal element 3, seal element 3 and bolt object wall are around close to, thereby the opening end of the first cavity 11 is sealed, prevent the loss of corrosion protection grease and entering of rainwater.Seal element 3 can adopt sealer or seal washer, the material of seal washer can be selected rubber, seal element 3 can also adopt magnetic element, this is applicable to the fixing object of bolt is the situation of steel equimagnetic sorbing material, and magnetic element can be issued to certain sealing effect in magnetic-adsorption effect.
Embodiment two
As shown in Figure 2, it is the structural representation of the utility model embodiment two bolt cover, and the main distinction of the bolt cover of the present embodiment and embodiment one bolt cover is, interior inlay 2 is nut.Adopt nut to there is more advantage as interior inlay, nut is the existing accessory extensively existing, and is easy to obtain bulk purchase from the market easily, thereby the bolt cover that makes the present embodiment is easier to produce in enormous quantities, can further reduce the bolt cover manufacture cost of the present embodiment.
If the exposed end of bolt only has shorter threaded stem to stretch out from bolt and nut, the shell on interior inlay 2 can be for solid.For the longer situation of the threaded stem stretching out from bolt and nut, as shown in Figure 2, in shell 1, can also be provided with the second cavity 13, the second cavitys 13 and be positioned at the top of inlay 2 and be communicated with the tapped hole of inlay 2, the sectional area of the second cavity 13 is more than or equal to the sectional area of tapped hole.Utilize the second cavity 13 also can hold longer threaded stem.Preferably, the sectional area of the second cavity 13 can be less than the sectional area of interior inlay 2.
Further, as shown in Figure 2, on shell 1, can be provided with oil hole 12, oil hole 12 can be communicated with the second cavity 13.At bolt during one's term of military service, user can be as required from oil hole 12 to the interior supplementary corrosion protection grease of the second cavity 13 so that bolt is carried out to maintenance under the condition of bolt cover of not dismantling the present embodiment, increase work efficiency.Preferably, can in oil hole 12, fill corrosion protection grease, corrosion protection grease can play certain plugging action to oil hole 12 like this, prevents that a small amount of rainwater from entering in oil hole 12.
Embodiment three
As shown in Figure 3, it is the structural representation of the utility model embodiment three bolt cover, the main distinction of the bolt cover of the present embodiment and embodiment two bolt cover is, the interior inlay 2 in the present embodiment is homemade interior inlay, when producing, can process voluntarily tapped hole 21.
About above embodiment, the profile of shell 1 is flexible design as required, as being cylindrical shape, hexagon, bullet-shaped or be the multilayer steps shape convolution bodily form etc.The first cavity 11 and the second cavity 13 are mainly used in holding object wherein, so its shape of cross section can be circular, polygonal or other shapes arbitrarily.
It should be noted that, said in above embodiment " lower end of shell 1 is provided with the first cavity 11 of lower ending opening ", it is for the ease of being described with reference to the accompanying drawings that the upper-lower position relation that " the first cavity 11 is arranged in the below of inlay 2 " and " the second cavity 13 is positioned at the top of inlay 2 " mentioned should be understood to it, during embodiment that user states in the use, the direction of whole bolt cover can arrange according to the direction of the exposed head of bolt in concrete Environmental Conditions, as can be as vertically arranged in accompanying drawing, also can be inverted, be obliquely installed or be horizontally disposed with.
The above; it is only embodiment of the present utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (11)
1. a bolt cover, it is characterized in that, comprise shell, in described shell, be embedded with the interior inlay of metal material, in described interior inlay, be provided with tapped hole, in the lower end of described shell, be provided with the first cavity of lower ending opening, described the first cavity is positioned at the below of described inlay and is communicated with described tapped hole, and the sectional area of described the first cavity is greater than the sectional area of described tapped hole.
2. bolt cover according to claim 1, it is characterized in that, in described shell, be also provided with the second cavity, described the second cavity is positioned at the top of described inlay and is communicated with the tapped hole of described inlay, and the sectional area of described the second cavity is more than or equal to the sectional area of described tapped hole.
3. bolt cover according to claim 2, is characterized in that, on described shell, is provided with oil hole, and described oil hole is communicated with described the second cavity.
4. according to the bolt cover described in arbitrary claim in claims 1 to 3, it is characterized in that, described interior inlay is nut or inner thread steel pipe.
5. bolt cover according to claim 1, is characterized in that, described interior inlay is inner thread steel pipe, on described inner thread steel pipe, is provided with perforation, on described shell, is provided with oil hole, and described oil hole is communicated with described perforation.
6. bolt cover according to claim 5, is characterized in that, the upper end of inner thread steel pipe described in described shell shutoff.
7. bolt cover according to claim 1, is characterized in that, on the lower end surface of described shell, is provided with seal element.
8. bolt cover according to claim 7, is characterized in that, described seal element is seal washer, sealer or magnetic element.
9. bolt cover according to claim 1, is characterized in that, the material of described shell is plastics.
10. bolt cover according to claim 2, is characterized in that, in described the second cavity, is provided with corrosion protection grease.
11. according to the bolt cover described in claim 3 or 5, it is characterized in that, is filled with corrosion protection grease in described oil hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420275288.9U CN203847542U (en) | 2014-05-27 | 2014-05-27 | Bolt cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420275288.9U CN203847542U (en) | 2014-05-27 | 2014-05-27 | Bolt cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203847542U true CN203847542U (en) | 2014-09-24 |
Family
ID=51560566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420275288.9U Expired - Lifetime CN203847542U (en) | 2014-05-27 | 2014-05-27 | Bolt cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203847542U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131196A (en) * | 2017-05-27 | 2017-09-05 | 华信咨询设计研究院有限公司 | A kind of sill anchor protection device and guard method |
| CN110735842A (en) * | 2018-07-19 | 2020-01-31 | 中国石油天然气股份有限公司 | Bolt protection tool and bolt connecting assembly |
-
2014
- 2014-05-27 CN CN201420275288.9U patent/CN203847542U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131196A (en) * | 2017-05-27 | 2017-09-05 | 华信咨询设计研究院有限公司 | A kind of sill anchor protection device and guard method |
| CN110735842A (en) * | 2018-07-19 | 2020-01-31 | 中国石油天然气股份有限公司 | Bolt protection tool and bolt connecting assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140924 |
|
| CX01 | Expiry of patent term |