CN203297265U - Oval bolt - Google Patents
Oval bolt Download PDFInfo
- Publication number
- CN203297265U CN203297265U CN2013202221457U CN201320222145U CN203297265U CN 203297265 U CN203297265 U CN 203297265U CN 2013202221457 U CN2013202221457 U CN 2013202221457U CN 201320222145 U CN201320222145 U CN 201320222145U CN 203297265 U CN203297265 U CN 203297265U
- Authority
- CN
- China
- Prior art keywords
- bolt
- oval
- screw
- bolt head
- screw rod
- 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
Links
Abstract
The utility model provides an oval bolt, comprising a bolt head and a screw; the bolt head is oval; the screw is arranged at the lower end of the bolt head; the outer wall of the bolt head is provided with a pentagon groove; threads are arranged at the outer cylinder of the tail of the screw; a withdrawing slot for machining threads is further arranged at the outer cylindrical face of the screw; and sharp tips are arranged at the two sides of the upper end of the screw. The utility model aims to design the oval bolt which is simple in structure, more durable, convenient and practical, the sharp tips arranged at two sides of the screw prevent the bolt from falling and enhance the fastening effect of the bolt, and only a special tool can be used for disassembling the oval bolt due to the arranging of the groove at the outer wall of the bolt head.
Description
Technical field
The utility model relates to a kind of fastening piece, particularly a kind of oval bolt.
Background technique
Fastening piece on market also referred to as standard piece, that two or more parts (or member) are fastenedly connected the general name that becomes class mechanical parts that adopt when whole, its feature is that description is various, the performance purposes is different, and standardization, seriation, unitized strong, fastening piece is most widely used mechanical basic part, is in great demand.
Oval bolt is used for fastening ball mill lining board, belongs to non-standard fastener, needs to coordinate other accessories to use, traditional oval bolt strength is poor, fracture or the phenomenon that comes off easily occur, and has affected working life, common bolt does not have special fastening structure, and fastening effect is not very desirable.
Summary of the invention
For addressing the above problem, the utility model discloses a kind of oval bolt, this bolt arrangement is simple, and more durable convenient and practical, has effectively solved the fixing unstable problem of bolt falling.
The utility model provides a kind of oval bolt, comprise bolt head, screw rod, described bolt head ovalize, be provided with screw rod in the bolt head lower end, be provided with the pentagon groove on the outer wall of bolt head, be provided with screw thread on the outer cylinder of described screw rod tail, also have the tool withdrawal groove for machining screw on the external cylindrical surface of screw rod, be provided with spur on both sides, screw rod upper end.A kind of oval bolt of the purpose of this utility model design, this bolt arrangement is simple, and more durable convenient and practical, the spur that is arranged on the screw rod both sides prevents coming off of bolt, the fastening effect of strengthening stud, the setting of bolt head unit with grooves in outer wall can only be dismantled with particular tool, and anti-theft effect is better.
The utility model discloses a kind of a kind of improvement of oval bolt, the length of described screw thread is 1/5th of bolt total length.The length of this improvement screw thread is 1/5th of bolt total length, and purpose further improves the intensity of bolt, extends the working life of bolt, and fixation.
The utility model discloses a kind of a kind of improvement of oval bolt, the both sides of described tool withdrawal groove cave inward.The both sides of this improvement tool withdrawal groove cave inward, and purpose is strengthened the bolton effect.
A kind of oval bolt of the purpose of this utility model design, this bolt arrangement is simple, and more durable convenient and practical, the spur that is arranged on the screw rod both sides prevents coming off of bolt, the fastening effect of strengthening stud, the setting of bolt head unit with grooves in outer wall can only be dismantled with particular tool, and anti-theft effect is better.
Description of drawings
Fig. 1, be a kind of structural representation of oval bolt.
Reference numerals list:
11, bolt head;
21, spur;
31, screw rod;
41, tool withdrawal groove;
51, screw thread;
61, groove.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand following embodiment and only be used for explanation the utility model and be not used in restriction scope of the present utility model.Need to prove, word 'fornt', 'back', " left side ", " right side ", "up" and "down" that use is described below refer to the direction in accompanying drawing, word " interior " and " outward " refer to respectively towards or away from the direction of specific features geometrical center.
Embodiment 1:
As shown in Figure 1, the utility model provides a kind of oval bolt, comprise bolt head 11, screw rod 31, described bolt head 11 ovalizes, be provided with screw rod 31 in bolt head 11 lower ends, be provided with pentagon groove 61 on the outer wall of bolt head 11, be provided with screw thread 51 on the outer cylinder of described screw rod 31 afterbodys, also have the tool withdrawal groove 41 for machining screw 51 on the external cylindrical surface of screw rod 31, be provided with spur 21 on screw rod 31 both sides, upper end.A kind of oval bolt of the purpose of this utility model design, this bolt arrangement is simple, and more durable convenient and practical, the spur that is arranged on the screw rod both sides prevents coming off of bolt, the fastening effect of strengthening stud, the setting of bolt head unit with grooves in outer wall can only be dismantled with particular tool, and anti-theft effect is better.
Embodiment 2:
The described a kind of oval bolt of embodiment 1, the length of described screw thread 51 is 1/5th of bolt total length.The length of this improvement screw thread is 1/5th of bolt total length, and purpose further improves the intensity of bolt, extends the working life of bolt, and fixation.
Embodiment 3:
The described a kind of oval bolt of embodiment 1, the both sides of described tool withdrawal groove 41 cave inward.The both sides of this improvement tool withdrawal groove cave inward, and purpose is strengthened the bolton effect.
A kind of oval bolt of the purpose of this utility model design, this bolt arrangement is simple, and more durable convenient and practical, the spur that is arranged on the screw rod both sides prevents coming off of bolt, the fastening effect of strengthening stud, the setting of bolt head unit with grooves in outer wall can only be dismantled with particular tool, and anti-theft effect is better.
The above; it is only preferred embodiment of the present utility model; be not the utility model to be done the restriction of any other form, and, according to any modification or equivalent variations that technical spirit of the present utility model is done, still belong to the utility model scope required for protection.
Claims (3)
1. oval bolt, it is characterized in that: comprise bolt head (11), screw rod (31), described bolt head (11) ovalize, be provided with screw rod (31) in bolt head (11) lower end, be provided with pentagon groove (61) on the outer wall of bolt head (11), be provided with screw thread (51) on the outer cylinder of described screw rod (31) afterbody, also have the tool withdrawal groove (41) for machining screw (51) on the external cylindrical surface of screw rod (31), be provided with spur (21) on screw rod (31) both sides, upper end.
2. a kind of oval bolt according to claim 1, it is characterized in that: the length of described screw thread (51) is 1/5th of bolt total length.
3. a kind of oval bolt according to claim 1, it is characterized in that: the both sides of described tool withdrawal groove (41) cave inward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202221457U CN203297265U (en) | 2013-04-27 | 2013-04-27 | Oval bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202221457U CN203297265U (en) | 2013-04-27 | 2013-04-27 | Oval bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203297265U true CN203297265U (en) | 2013-11-20 |
Family
ID=49573274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202221457U Expired - Fee Related CN203297265U (en) | 2013-04-27 | 2013-04-27 | Oval bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203297265U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113994109A (en) * | 2020-05-11 | 2022-01-28 | 波尔茨原株式会社 | Bolt with opening |
-
2013
- 2013-04-27 CN CN2013202221457U patent/CN203297265U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113994109A (en) * | 2020-05-11 | 2022-01-28 | 波尔茨原株式会社 | Bolt with opening |
| CN113994109B (en) * | 2020-05-11 | 2023-05-23 | 波尔茨原株式会社 | Bolt with opening |
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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: 20131120 Termination date: 20140427 |