CN202811753U - Limit bolt - Google Patents
Limit bolt Download PDFInfo
- Publication number
- CN202811753U CN202811753U CN 201220521490 CN201220521490U CN202811753U CN 202811753 U CN202811753 U CN 202811753U CN 201220521490 CN201220521490 CN 201220521490 CN 201220521490 U CN201220521490 U CN 201220521490U CN 202811753 U CN202811753 U CN 202811753U
- Authority
- CN
- China
- Prior art keywords
- head
- protection section
- screw rod
- outer circumferential
- caging 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 relates to a limit bolt which comprises a screw and a head, threads are arranged on the periphery face of the screw, the periphery face of the head is in a regular hexagon shape, a protective portion is arranged on the head in a sleeved mode, an installing cavity is arranged on the protective portion and the shape of the installing cavity is matched with the shaped of the head, the periphery face of the protective portion is in the regular hexagon shape, the other side of the protective portion is relative to the head and provided with an arc surface, and the arc surface is arranged in a outward protruding mode relative to the screw. By adopting the scheme, the limit bolt has the advantages of being long in service life.
Description
Technical field
The utility model relates to a kind of bolt, is specifically related to a kind of caging bolt.
Background technique
Nowadays, bolt has been applied to various fields as most basic connector element, by head and a screw rod class fastening piece dimerous, need to cooperate with nut, be used for being fastenedly connected two with the part of through hole, caging bolt wherein then is to limit the relatively parts of slippage by head, but traditional caging bolt head all adopts rigid material, uses parts or head to slippage all can damage for a long time.
Summary of the invention
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of caging bolt of long service life.
For achieving the above object; the utility model provides following technological scheme: comprise screw rod and head; be provided with screw thread on the described screw rod outer circumferential face; it is characterized in that: described head outer circumferential face is regular hexagon; be arranged with protection section on the described head; described protection section is provided with the suitable installation cavity of shape and head; described protection section outer circumferential face is the regular hexagon setting; the opposite side of the relative head of described protection section is provided with arcuate surface, and the relative screw rod of described arcuate surface is the evagination setting.
By adopting technique scheme; increase protection section can increase the protection to head; make head not easy to wear; increased the life-span of caging bolt; protection section outer circumferential face and the identical shaped setting of head outer circumferential face make the instrument of applicable head also can be applied to protection section, and arcuate surface makes when spacing stressed effect better.
The utility model further is set to: described protection section is that nylon is made.
By adopting technique scheme; protection section can be made of various elastic materials; here preferably adopt nylon manufacturing protection section; nylon has good combination property; comprise mechanical property, heat resistance, wearability, chemical proofing and self lubricity; and friction factor is low, makes the parts long-term work wearing and tearing of slippage little, the life-span of improving simultaneously caging bolt and associated components.
The utility model further is set to: described screw rod and head are made by the 40Cr steel.
By adopting technique scheme, the 40cr steel has certain toughness, plasticity and wear resistance after heat treatment, is fit to very much the usage requirement of caging bolt, and the use of 40Cr steel extensively, is easy to buying and processing, brings very big facility to production.
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Description of drawings
Fig. 1 is the erection drawing of the utility model embodiment;
Fig. 2 is the explosive view of the utility model embodiment.
Embodiment
Such as Fig. 1-shown in Figure 2; the utility model discloses a kind of caging bolt; comprise screw rod 1 and head 2; be provided with screw thread 11 on screw rod 1 outer circumferential face; in the utility model embodiment; head 2 outer circumferential faces are regular hexagon; be arranged with protection section 3 on the head 2; protection section 3 is provided with the suitable installation cavity 31 of shape and head 2; protection section 3 outer circumferential faces are the regular hexagon setting; the opposite side of protection section 3 relative heads 2 is provided with arcuate surface 32; arcuate surface 32 relative screw rods 1 are the evagination setting; increase the protection that protection section 3 can increase head 2; make head 2 not easy to wear; increased the life-span of caging bolt; protection section 3 outer circumferential faces and the identical shaped setting of head 2 outer circumferential faces make the instrument of applicable head 2 also can be applied to protection section 3; arcuate surface 32 makes when spacing stressed effect better; protection section 3 can be made of various elastic materials; here preferably adopt nylon manufacturing protection section 3; nylon has good combination property; comprise mechanical property; heat resistance; wearability; chemical proofing and self lubricity; and friction factor is low; make the parts long-term work wearing and tearing of slippage little; improve simultaneously the life-span of caging bolt and associated components; screw rod 1 and head 2 are made by the 40Cr steel; the 40cr steel has certain toughness after heat treatment; plasticity and wear resistance are fit to the usage requirement of caging bolt very much, and the 40Cr steel uses extensively; be easy to buying and processing, bring very big facility to production.
Claims (3)
1. caging bolt; comprise screw rod and head; be provided with screw thread on the described screw rod outer circumferential face; it is characterized in that: described head outer circumferential face is regular hexagon; be arranged with protection section on the described head, described protection section is provided with the suitable installation cavity of shape and head, and described protection section outer circumferential face is the regular hexagon setting; the opposite side of the relative head of described protection section is provided with arcuate surface, and the relative screw rod of described arcuate surface is the evagination setting.
2. caging bolt according to claim 1 is characterized in that: described protection section is that nylon is made.
3. caging bolt according to claim 1 and 2, it is characterized in that: described screw rod and head are made by the 40Cr steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220521490 CN202811753U (en) | 2012-10-10 | 2012-10-10 | Limit bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220521490 CN202811753U (en) | 2012-10-10 | 2012-10-10 | Limit bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202811753U true CN202811753U (en) | 2013-03-20 |
Family
ID=47870633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220521490 Expired - Fee Related CN202811753U (en) | 2012-10-10 | 2012-10-10 | Limit bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202811753U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104688307A (en) * | 2015-03-13 | 2015-06-10 | 王国栋 | Compulsive shaping device of bone joint |
-
2012
- 2012-10-10 CN CN 201220521490 patent/CN202811753U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104688307A (en) * | 2015-03-13 | 2015-06-10 | 王国栋 | Compulsive shaping device of bone joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20141010 |
|
| EXPY | Termination of patent right or utility model |