CN210087798U - High-strength bolt convenient to screw up - Google Patents
High-strength bolt convenient to screw up Download PDFInfo
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- CN210087798U CN210087798U CN201920839340.1U CN201920839340U CN210087798U CN 210087798 U CN210087798 U CN 210087798U CN 201920839340 U CN201920839340 U CN 201920839340U CN 210087798 U CN210087798 U CN 210087798U
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- auxiliary
- screw rod
- screw
- bolt head
- bolt
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Abstract
The utility model discloses a high strength bolt convenient to screw up, including king bolt head, lead screw rod, auxiliary bolt head, auxiliary screw rod, king bolt head bottom is fixed with a lead screw rod, is equipped with first external screw thread on the lead screw rod, the top of king bolt head is equipped with a screw hole, is equipped with the internal thread on the screw hole, has twisted an auxiliary screw rod on the screw hole, be equipped with on the auxiliary screw rod with internal thread matched with second external screw thread, the top of auxiliary screw rod links to each other with an auxiliary bolt head, the external diameter of king bolt is greater than the external diameter of auxiliary screw rod. The utility model discloses a cooperate auxiliary bolt head, auxiliary screw rod, screw hole for the bolt can fracture earlier if too big auxiliary screw rod hard when twisting, makes the main screw rod difficult fracture, is convenient for screw up.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a technical field of bolt, especially high strength bolt's technical field.
[ background of the invention ]
The bolt is a common fastener and is widely applied. Bolts are used in the fields of high-speed rails, oil exploitation, wind power and the like, and sometimes part of the bolts are required to be screwed when in use. However, during the tightening process, the bolt is sometimes broken due to the excessive force. Broken bolts are cumbersome and time consuming to handle.
[ Utility model ] content
The utility model aims at solving the problem in the prior art, providing a high strength bolt convenient to tighten, can make the bolt be convenient for tighten, difficult quilt is twisted absolutely.
For the purpose of realizing the above-mentioned, the utility model provides a high strength bolt convenient to screw up, including main bolt head, main screw rod, auxiliary bolt head, auxiliary screw rod, main bolt head bottom is fixed with a main screw rod, is equipped with first external screw thread on the main screw rod, the top of main bolt head is equipped with a screw hole, is equipped with the internal thread on the screw hole, has twisted an auxiliary screw rod on the screw hole, be equipped with on the auxiliary screw rod with internal thread matched with second external screw thread, the top of auxiliary screw rod links to each other with an auxiliary bolt head, the external diameter of main screw rod is greater than the external diameter of auxiliary screw rod.
Preferably, the length of the auxiliary screw is smaller than the depth of the threaded hole.
Preferably, the main bolt head and the main screw rod are of an integrated structure, and the auxiliary bolt head and the auxiliary screw rod are of an integrated structure.
Preferably, the side wall of the auxiliary screw is provided with a plurality of auxiliary grooves, and the direction of the auxiliary grooves is the same as that of the auxiliary screw.
Preferably, the main screw, the auxiliary bolt head and the auxiliary screw are located on the same axis.
The utility model has the advantages that: the auxiliary bolt head, the auxiliary screw rod and the threaded hole are matched, so that the auxiliary screw rod can be firstly broken if the bolt is too strong when being screwed, the main screw rod is not easy to break, and the bolt is convenient to screw; the auxiliary groove is arranged, so that the auxiliary screw rod after being twisted off is convenient to clean, and the use is more convenient.
The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.
[ description of the drawings ]
Fig. 1 is a front view of a high-strength bolt of the present invention, which is easy to tighten.
In the figure: 1-main bolt head, 2-auxiliary bolt head, 10-main screw rod, 11-first external thread, 15-threaded hole, 16-internal thread, 20-auxiliary screw rod, 21-second external thread and 22-auxiliary groove.
[ detailed description ] embodiments
Referring to fig. 1, the high strength bolt convenient for tightening of the present invention includes a main bolt head 1, a main screw 10, an auxiliary bolt head 2, and an auxiliary screw 20, wherein a main screw 10 is fixed at the bottom of the main bolt head 1, a first external thread 11 is provided on the main screw 10, a threaded hole 15 is provided at the top of the main bolt head 1, an internal thread 16 is provided on the threaded hole 15, an auxiliary screw 20 is screwed on the threaded hole 15, a second external thread 21 matched with the internal thread 16 is provided on the auxiliary screw 20, the top of the auxiliary screw 20 is connected to the auxiliary bolt head 2, the external diameter of the main screw 10 is larger than the external diameter of the auxiliary screw 20, the length of the auxiliary screw 20 is smaller than the depth of the threaded hole 15, the main bolt head 1 and the main screw 10 are of an integrated structure, the auxiliary bolt head 2 and the auxiliary screw 20 are of an integrated structure, a plurality of auxiliary grooves 22 are provided on the side wall, the auxiliary groove 22 has the same direction as the auxiliary screw rod 20, and the main screw rod 10, the auxiliary bolt head 2 and the auxiliary screw rod 20 are located on the same axis.
The utility model discloses the working process:
in the working process of the high-strength bolt convenient to tighten, the auxiliary bolt head 2, the auxiliary screw rod 20 and the threaded hole 15 are matched, so that the auxiliary screw rod 20 can be firstly broken if the bolt is too strong during screwing, the main screw rod 10 is not easy to break, and the bolt is convenient to tighten; the auxiliary groove 22 is arranged, so that the twisted auxiliary screw 20 is convenient to clean and use.
The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.
Claims (5)
1. The utility model provides a high strength bolt convenient to screw up which characterized in that: including the king bolt head (1), king screw rod (10), auxiliary bolt head (2), auxiliary screw rod (20), king bolt head (1) bottom is fixed with a king screw rod (10), is equipped with first external screw thread (11) on king screw rod (10), the top of king bolt head (1) is equipped with a screw hole (15), is equipped with internal thread (16) on screw hole (15), and it has an auxiliary screw rod (20) to twist on screw hole (15), be equipped with on auxiliary screw rod (20) with internal thread (16) matched with second external screw thread (21), the top and an auxiliary bolt head (2) of auxiliary screw rod (20) link to each other, the external diameter of king screw rod (10) is greater than the external diameter of auxiliary screw rod (20).
2. A high strength bolt for facilitating tightening as set forth in claim 1, wherein: the length of the auxiliary screw rod (20) is smaller than the depth of the threaded hole (15).
3. A high strength bolt for facilitating tightening as set forth in claim 1, wherein: the main bolt head (1) and the main screw rod (10) are of an integrated structure, and the auxiliary bolt head (2) and the auxiliary screw rod (20) are of an integrated structure.
4. A high strength bolt for facilitating tightening as set forth in claim 1, wherein: the side wall of the auxiliary screw rod (20) is provided with a plurality of auxiliary grooves (22), and the trend of the auxiliary grooves (22) is the same as that of the auxiliary screw rod (20).
5. A high strength bolt for facilitating tightening as set forth in claim 1, wherein: the main screw rod (10), the auxiliary bolt head (2) and the auxiliary screw rod (20) are positioned on the same axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920839340.1U CN210087798U (en) | 2019-06-04 | 2019-06-04 | High-strength bolt convenient to screw up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920839340.1U CN210087798U (en) | 2019-06-04 | 2019-06-04 | High-strength bolt convenient to screw up |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210087798U true CN210087798U (en) | 2020-02-18 |
Family
ID=69481686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920839340.1U Active CN210087798U (en) | 2019-06-04 | 2019-06-04 | High-strength bolt convenient to screw up |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210087798U (en) |
-
2019
- 2019-06-04 CN CN201920839340.1U patent/CN210087798U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 314300 Fengshan village, Qinshan street, Haiyan County, Jiaxing, Zhejiang Patentee after: Haiyan Dingfeng Fastener Co., Ltd Address before: 314300 Fengshan village, Qinshan street, Haiyan County, Jiaxing, Zhejiang Patentee before: HAIYAN DINGFENG FASTENER Co.,Ltd. |