CN211174939U - Big round thread hexagon bolt of awl countersunk head - Google Patents
Big round thread hexagon bolt of awl countersunk head Download PDFInfo
- Publication number
- CN211174939U CN211174939U CN201921832594.7U CN201921832594U CN211174939U CN 211174939 U CN211174939 U CN 211174939U CN 201921832594 U CN201921832594 U CN 201921832594U CN 211174939 U CN211174939 U CN 211174939U
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- screw rod
- head
- thread
- outside
- hexagon bolt
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Abstract
The utility model relates to a big round tooth hexagon bolt of awl countersunk head, the screw rod that includes screw rod head and be located screw rod head one end, screw rod head and screw rod between link to each other through conical connection portion, the outside of screw rod be provided with the round tooth screw thread, the outside of screw rod cup jointed hexagon nut, conical connection portion's the outside cup jointed the inside taper sleeve that is provided with the taper hole. The utility model discloses simple structure adopts the big circular tooth of coarse pitch, and toper and taper sleeve cooperation under the head can freely look for parallelly when pressing from both sides tightly with the work piece, can not produce the intervalve with the tight work piece of needs clamp, and the spiral tooth is made big circular tooth and is closed speed and promote greatly.
Description
Technical Field
The utility model relates to a fastener field especially relates to a big round tooth hexagon bolt of awl countersunk head.
Background
Connecting bolts are often used in industrial and mechanical fastening, the bolts and the gaskets of common clamping fasteners are matched with nuts to clamp the workpieces, gaps can be generated between the bolts and the workpieces after the workpieces are uneven or irregularly clamped, the clamping strength is influenced, the clamping condition cannot be met, and the connecting bolts are inconvenient to use.
Disclosure of Invention
The utility model aims to solve the technical problem that a big circular tooth hexagon bolt of awl countersunk head is provided, simple structure adopts the big circular tooth of coarse pitch, and toper and taper sleeve cooperation under the head can freely look for parallelly when pressing from both sides tightly with the work piece, can not produce the intervallum with the work piece that needs the clamp tightly, and the thread is made big circular tooth and closes speed and promote greatly soon.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a big round thread hexagon bolt of awl countersunk head, includes screw rod head and the screw rod that is located screw rod head one end, screw rod head and screw rod between link to each other through conical connection portion, the outside of screw rod be provided with round thread, the outside of screw rod cup jointed hexagon nut, conical connection portion's the outside cup jointed the taper sleeve that inside was provided with the taper hole.
Furthermore, the thread pitch of the round thread is 5mm, the round radius of the round thread is 1.2mm, and the thread depth is 2.6 mm.
Furthermore, a conical guide part is arranged at the end part of the screw rod.
Has the advantages that: the utility model relates to a big circular tooth hexagon bolt of awl countersunk head, simple structure adopts big circular tooth of coarse pitch, and toper and taper sleeve cooperation under the head can freely look for parallelly when pressing from both sides tightly with the work piece, can not produce the intervalve with the tight work piece of needs clamp, and the thread is made big circular tooth and closes speed and promote greatly.
Drawings
FIG. 1 is a front view structural diagram of the present invention;
fig. 2 is a partially enlarged structure view of the thread of the present invention.
The figure is as follows: 1. the screw rod head 2, the conical connecting part 3, the conical sleeve 4 and the hexagon nut; a. pitch of the thread; b. depth of the thread; r, round tooth radius.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
As shown in fig. 1-2, the utility model discloses an embodiment relates to a big round thread hexagon bolt of awl countersunk head, include screw head 1 and the screw rod 5 that is located screw head 1 one end, screw head 1 and screw rod 5 between link to each other through conical connection portion 2, the outside of screw rod 5 be provided with round thread 6, the outside of screw rod 5 cup jointed hexagon nut 4, conical connection portion 2's the outside cup jointed the taper sleeve 3 that inside was provided with the taper hole.
The screw pitch a of the round thread 6 is 5mm, the round thread radius R of the round thread 6 is 1.2mm, the thread depth b is 2.6mm, the rotation is faster by adopting the thread, and the bearing capacity of the thread is greatly improved.
The end part of the screw rod 5 is provided with a conical guide part 7, so that the screw hole can be stably guided into when the screw rod is conveniently rotated.
The utility model discloses compare with ordinary bolt, the result of use is better in the aspect of engineering and mechanical fastening, promotes and produces property ability intensity, and the fastening is twisted soon convenient more fast, promotes production work efficiency.
Claims (3)
1. The utility model provides a big circular thread hexagon bolt of awl countersunk head, its characterized in that includes screw rod head (1) and screw rod (5) that are located screw rod head (1) one end, screw rod head (1) and screw rod (5) between link to each other through circular cone connecting portion (2), the outside of screw rod (5) be provided with circular thread (6), the outside of screw rod (5) cup jointed hexagon nut (4), the outside of circular cone connecting portion (2) cup jointed inside taper sleeve (3) that are provided with the taper hole.
2. The tapered countersunk large round hexagon bolt according to claim 1, characterized in that: the thread pitch (a) of the round thread (6) is 5mm, the round thread radius (R) of the round thread (6) is 1.2mm, and the thread depth (b) is 2.6 mm.
3. The tapered countersunk large round hexagon bolt according to claim 1, characterized in that: the end part of the screw rod (5) is provided with a conical guide part (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921832594.7U CN211174939U (en) | 2019-10-29 | 2019-10-29 | Big round thread hexagon bolt of awl countersunk head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921832594.7U CN211174939U (en) | 2019-10-29 | 2019-10-29 | Big round thread hexagon bolt of awl countersunk head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211174939U true CN211174939U (en) | 2020-08-04 |
Family
ID=71807174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921832594.7U Active CN211174939U (en) | 2019-10-29 | 2019-10-29 | Big round thread hexagon bolt of awl countersunk head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211174939U (en) |
-
2019
- 2019-10-29 CN CN201921832594.7U patent/CN211174939U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |