CN203051440U - Convenient-to-lubricate anti-corrosion durable screw bolt - Google Patents
Convenient-to-lubricate anti-corrosion durable screw bolt Download PDFInfo
- Publication number
- CN203051440U CN203051440U CN 201220628174 CN201220628174U CN203051440U CN 203051440 U CN203051440 U CN 203051440U CN 201220628174 CN201220628174 CN 201220628174 CN 201220628174 U CN201220628174 U CN 201220628174U CN 203051440 U CN203051440 U CN 203051440U
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- CN
- China
- Prior art keywords
- screw bolt
- bolt head
- screw rod
- convenient
- bolt
- 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 - Fee Related
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Abstract
The utility model discloses a convenient-to-lubricate anti-corrosion durable screw bolt, which comprises a screw bolt head, a screw rod and a protection cap, wherein the upper end surface of the screw bolt head is provided with a dovetail groove, the inner top part of the protection cap is provided with a trapezoidal clamp block matched with the dovetail groove, the edge of the protection cap is provided with an outwards extending baffle edge, the protection cap is matched with the dovetail groove through the clamp block to be arranged on the screw bolt head, an arc-shaped connecting part is arranged at the connecting part of the upper end of the screw rod and the screw bolt head, the upper end of the screw rod is an unthreaded section, the lower end of the screw rod is a threaded section, a gasket is sheathed on the unthreaded section, and a shallow groove parallel to the axial line of the screw rod is arranged on the threaded section. The convenient-to-lubricate anti-corrosion durable screw bolt has the advantages that the structure is simple, the corrosion influence on the screw bolt caused by the contact between corrosive gas or liquid and the screw bolt is effectively prevented, the anti-corrosion performance of the screw bolt is improved, the stress concentration point is eliminated, the mechanical intensity of the screw bolt is effectively improved, service life is prolonged, lubricating oil can be added from the shallow groove part, and convenience is effectively brought for the dismounting operation.
Description
Technical field
The utility model relates to a kind of mechanical fastener, is specially the durable bolt of a kind of corrosion protection of being convenient to lubricate.
Background technique
Bolt is one of modal fastening piece, and it is made up of head and screw rod.It is cylindric that screw rod is, on have outside thread and can use with nut collocation.Screw bolt and nut uses jointly, can connect and fix two parts that have through hole.Existing bolt is applied in when having corrosive operational site, it is more serious that it is influenced by corrosion, makes can't reach fastening effect by bolt failure, the bolt head of conventional bolt and the joint of screw rod are the right angle, stress is comparatively concentrated when stressed, crack because of fatigue easily and then rupture, so intensity is not good, life-span is short, and after long-time the use, bolt is fixed together with nut because getting rusty easily, and dismounting is convenient inadequately.
The model utility content
The purpose of this utility model provides the durable bolt of a kind of corrosion protection of being convenient to lubricate, to solve traditional bolt poor corrosion resistance in the prior art, be subjected to corrosion to influence and can't reach fastening effect easily, and intensity is not good, life-span is short, be fixed together with nut because getting rusty easily, dismantle inadequately problem easily.
For achieving the above object, the technical solution adopted in the utility model is:
The durable bolt of a kind of corrosion protection of being convenient to lubricate, it is characterized in that: include bolt head, screw rod and protective hat, described bolt head upper-end surface is provided with dovetail groove, described protective hat inner top is provided with the trapezoidal fixture block that matches with dovetail groove, described protective hat edge is provided with the rib of outside extension, described protective hat cooperates with dovetail groove by fixture block and is installed on the bolt head, described screw rod upper end is provided with the arc joint with the joint of bolt head, described screw rod upper end is the polished rod section, the lower end is thread section, be with pad on the described polished rod section, described thread section is provided with the shallow slot parallel with screw axis.
The durable bolt of described a kind of corrosion protection of being convenient to lubricate, it is characterized in that: described protective hat adopts corrosion resistant plastics to make.
The durable bolt of described a kind of corrosion protection of being convenient to lubricate is characterized in that: described bolt head is cylindrical no bevel bolt head.
The durable bolt of described a kind of corrosion protection of being convenient to lubricate, it is characterized in that: described shallow slot is at least one, and the shallow slot degree of depth is 1-3mm.
The beneficial effects of the utility model are:
The utility model is simple in structure, easy to install, adopt the design that protective hat is set at bolt head, prevented effectively that corrosive gas or liquid from contact with bolt and bolt caused to corrode influence, promote the antiseptic property of bolt, guaranteed the safe operation of equipment; Employing arranges the design of arc joint in screw rod upper end and the joint of bolt head, eliminated stress concentration point, has effectively promoted the mechanical strength of bolt, has prolonged working life; Employing arranges the design of shallow slot in the screw flight section, when not quick detachable because get rusty when bolt, can add lubricant oil from shallow slot, thereby make things convenient for disassembling section effectively.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, the durable bolt of a kind of corrosion protection of being convenient to lubricate, include bolt head 1, screw rod 2 and protective hat 3, bolt head 1 upper-end surface is provided with dovetail groove 4, protective hat 3 inner tops are provided with the trapezoidal fixture block 5 that matches with dovetail groove 4, protective hat 3 edges are provided with the rib 6 of outside extension, protective hat 3 cooperates with dovetail groove 4 by fixture block 5 and is installed on the bolt head 1, the joint of screw rod 2 upper ends and bolt head 1 is provided with arc joint 7, screw rod 2 upper ends are polished rod section 8, the lower end is thread section 9, is with pad 10 on the polished rod section 8, and thread section 9 is provided with the shallow slot 11 parallel with screw rod 2 axis.
Claims (4)
1. durable bolt of the corrosion protection of being convenient to lubricate, it is characterized in that: include bolt head, screw rod and protective hat, described bolt head upper-end surface is provided with dovetail groove, described protective hat inner top is provided with the trapezoidal fixture block that matches with dovetail groove, described protective hat edge is provided with the rib of outside extension, described protective hat cooperates with dovetail groove by fixture block and is installed on the bolt head, described screw rod upper end is provided with the arc joint with the joint of bolt head, described screw rod upper end is the polished rod section, the lower end is thread section, be with pad on the described polished rod section, described thread section is provided with the shallow slot parallel with screw axis.
2. the durable bolt of a kind of corrosion protection of being convenient to lubricate according to claim 1, it is characterized in that: described protective hat adopts corrosion resistant plastics to make.
3. the durable bolt of a kind of corrosion protection of being convenient to lubricate according to claim 1, it is characterized in that: described bolt head is cylindrical no bevel bolt head.
4. the durable bolt of a kind of corrosion protection of being convenient to lubricate according to claim 1, it is characterized in that: described shallow slot is at least one, and the shallow slot degree of depth is 1-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220628174 CN203051440U (en) | 2012-11-25 | 2012-11-25 | Convenient-to-lubricate anti-corrosion durable screw bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220628174 CN203051440U (en) | 2012-11-25 | 2012-11-25 | Convenient-to-lubricate anti-corrosion durable screw bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203051440U true CN203051440U (en) | 2013-07-10 |
Family
ID=48734398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220628174 Expired - Fee Related CN203051440U (en) | 2012-11-25 | 2012-11-25 | Convenient-to-lubricate anti-corrosion durable screw bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203051440U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763096A (en) * | 2017-01-23 | 2017-05-31 | 上海金由氟材料股份有限公司 | A kind of clad type anticorrosion fastening bolt |
-
2012
- 2012-11-25 CN CN 201220628174 patent/CN203051440U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763096A (en) * | 2017-01-23 | 2017-05-31 | 上海金由氟材料股份有限公司 | A kind of clad type anticorrosion fastening bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20131125 |