CN204646933U - A kind of bolt - Google Patents
A kind of bolt Download PDFInfo
- Publication number
- CN204646933U CN204646933U CN201520291779.7U CN201520291779U CN204646933U CN 204646933 U CN204646933 U CN 204646933U CN 201520291779 U CN201520291779 U CN 201520291779U CN 204646933 U CN204646933 U CN 204646933U
- Authority
- CN
- China
- Prior art keywords
- screw
- round platform
- bolt
- screw rod
- cylindrical
- 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 a kind of bolt, comprising: bolt head; And bolt shank, bolt shank comprises cylindrical screw and round platform screw rod, the first end of cylindrical screw is fixedly connected with bolt head, second end of cylindrical screw is fixedly connected with the first end of round platform screw rod, and the first end of round platform screw rod is one end that diameter is larger, cylindrical screw and round platform screw coaxial, and the diameter of the first end of round platform screw rod equals the diameter of cylindrical screw; Wherein, cylindrical screw is provided with the first screw thread, and round platform screw rod is provided with the second screw thread, and the pitch of the first screw thread and tooth depth are identical with the pitch of the second screw thread and tooth depth respectively.Bolt of the present utility model, threaded round platform screw rod is established by increasing, make the second screw thread on the internal thread on nut and round platform screw rod automatically can recognize button, ensure that the nut after being inserted in is unlikely to landing, ensure when using spanner to tighten further simultaneously, can make at once energetically, to improve working efficiency.
Description
Technical field
The utility model relates to fastening-connecting device technical field, particularly relates to a kind of bolt.
Background technique
In conventional bolt, threaded attachment portion is all columned, when therefore conventional bolt, nut connect, all needs manually nut to be screwed into two to three circles on bolt, after making nut can freely rest on bolt surface, could tighten further with the instrument such as manual wrench or autowrench.When needing a large amount of bolt and nut to be connected in assembly process, cause the inconvenience of operation and the reduction of working efficiency.
Model utility content
In order to overcome the above-mentioned problems in the prior art, the utility model provides a kind of bolt, can fast and nut screw connection carry out fastening, thus to increase work efficiency.
In order to solve the problems of the technologies described above, the utility model adopts following technological scheme:
According to an aspect of the present utility model, provide a kind of bolt, comprising:
Bolt head; And
Bolt shank, bolt shank comprises cylindrical screw and round platform screw rod, the first end of cylindrical screw is fixedly connected with bolt head, second end of cylindrical screw is fixedly connected with the first end of round platform screw rod, and the first end of round platform screw rod is one end that diameter is larger, cylindrical screw and round platform screw coaxial, and the diameter of the first end of round platform screw rod equals the diameter of cylindrical screw;
Wherein, cylindrical screw is provided with the first screw thread, and round platform screw rod is provided with the second screw thread, and the pitch of the first screw thread and tooth depth are identical with the pitch of the second screw thread and tooth depth respectively.
Alternatively, bolt head, cylindrical screw and round platform screw rod are one-body molded.
Alternatively, less one end of diameter of round platform screw rod is the second end, and the external diameter of the second screw thread at the second end place of round platform screw rod and the difference of the external diameter of the first screw thread are 1 ~ 2 millimeter.
Alternatively, cylindrical screw comprises the smooth surface that a part of cylinder of first end is formed.
Alternatively, bolt head is outer-hexagonal bolt head, and outer-hexagonal bolt head is coaxial with bolt shank.
The beneficial effects of the utility model are:
Bolt of the present utility model, add one section of round platform screw rod, and the larger first end of the diameter of this round platform screw rod is fixedly connected with the second end of cylindrical screw, and second screw thread identical with the first screw thread on cylindrical screw is set on this round platform screw rod, make bolt of the present utility model in the process fastening with nut screw connection, under the Action of Gravity Field of nut, the second screw thread on the internal thread on nut and round platform screw rod is made automatically to recognize button, ensure that the nut after being inserted in is unlikely to landing, and ensure that when using spanner to tighten further, can make energetically at once, and then nut and cylindrical screw are tightened, thus increase work efficiency.
Accompanying drawing explanation
Fig. 1 represents one of structural representation of the bolt of the utility model embodiment;
Fig. 2 represents the structural representation two of the bolt of the utility model embodiment.
Wherein in figure: 1, bolt head; 2, cylindrical screw; 3, round platform screw rod; 4, the first end of round platform screw rod; 5, the second end of round platform screw rod; 6, the first screw thread; 7, the second screw thread; 8, smooth surface.
Embodiment
For making the purpose of this utility model, technological scheme and advantage clearly, below in conjunction with the accompanying drawings and the specific embodiments the utility model is described in detail.
According to an aspect of the utility model embodiment, provide a kind of bolt, as depicted in figs. 1 and 2, this bolt comprises:
Bolt head 1; And
Bolt shank, bolt shank comprises cylindrical screw 2 and round platform screw rod 3, the first end of cylindrical screw 2 is fixedly connected with bolt head 1, second end of cylindrical screw 2 is fixedly connected with the first end 4 of round platform screw rod, and the first end 4 of round platform screw rod is one end that diameter is larger, cylindrical screw 2 is coaxial with round platform screw rod 3, and the diameter of the first end of round platform screw rod 3 equals the diameter of cylindrical screw 2;
Wherein, cylindrical screw 2 is provided with the first screw thread 6, and round platform screw rod 3 is provided with the second screw thread 7, and the pitch of the first screw thread 6 and tooth depth are identical with the pitch of the second screw thread 7 and tooth depth respectively.
The bolt of the utility model embodiment, add a round platform screw rod 3, and the first end 4 of round platform screw rod is fixedly connected with the second end of cylindrical screw 2, this round platform screw rod 3 arranges the second screw thread 7, and makes the pitch of the second screw thread 7 and tooth depth all identical with the pitch of the first screw thread 6 on cylindrical screw 2 and tooth depth.Again because the first screw thread 6 on cylindrical screw 2 matches with the internal thread of nut, so the internal thread that is same and nut of the second screw thread 7 on round platform screw rod 3 matches.Therefore, the bolt of the utility model embodiment in use, by the Action of Gravity Field of nut, make the second screw thread 7 on the internal thread of nut and round platform screw rod 3 automatically can recognize button, ensure that the nut after being inserted in is unlikely to landing, ensure, when using spanner to tighten further, can make at once energetically, to improve working efficiency simultaneously.
In another embodiment of the present utility model, bolt head 1, cylindrical screw 2 and round platform screw rod 3 are one-body molded, make the course of working of the bolt of the utility model embodiment simpler.
In another embodiment of the present utility model, less one end of diameter of round platform screw rod 3 is the second end, the external diameter of the second screw thread 7 at the second end 5 place of round platform screw rod and the difference of the external diameter of the first screw thread 6 are 1 ~ 2 millimeter, ensure that nut can be enclosed within bolt fast, and then the second screw thread 7 be beneficial on nut and round platform screw rod 3 recognizes button automatically.Certainly, be understandable that, the bolt of the utility model embodiment, the outside dimension for second screw thread 7 at the second end 5 place of round platform screw rod is not limited to this.
In another embodiment of the present utility model, cylindrical screw 2 comprises the smooth surface 8 that a part of cylinder of first end is formed.
In another embodiment of the present utility model, bolt head 1 is outer-hexagonal bolt head, and outer-hexagonal bolt head is coaxial with bolt shank.It is appreciated of course that in the bolt of the utility model embodiment, specifically do not limit the concrete shape of bolt head 1, therefore, bolt head 1 also can be set to hexagon socket head cap screw head or hemisphere bolt head.
Above-described is preferred implementation of the present utility model; should be understood that the ordinary person for the art; can also make some improvements and modifications not departing under principle prerequisite described in the utility model, these improvements and modifications are also in protection domain of the present utility model.
Claims (5)
1. a bolt, is characterized in that, comprising:
Bolt head (1); And
Bolt shank, described bolt shank comprises cylindrical screw (2) and round platform screw rod (3), the first end of described cylindrical screw (2) is fixedly connected with described bolt head (1), second end of described cylindrical screw (2) is fixedly connected with the first end (4) of described round platform screw rod, and the first end (4) of described round platform screw rod is the larger one end of diameter, described cylindrical screw (2) is coaxial with described round platform screw rod (3), and the diameter of the first end (4) of described round platform screw rod equals the diameter of described cylindrical screw (2);
Wherein, described cylindrical screw (2) is provided with the first screw thread (6), described round platform screw rod (3) is provided with the second screw thread (7), and the pitch of described first screw thread (6) and tooth depth are identical with the pitch of described second screw thread (7) and tooth depth respectively.
2. bolt as claimed in claim 1, it is characterized in that, described bolt head (1), described cylindrical screw (2) and described round platform screw rod (3) are one-body molded.
3. bolt as claimed in claim 1, it is characterized in that, less one end of diameter of described round platform screw rod (3) is the second end, and the difference of the external diameter of second screw thread (7) at the second end (5) place of described round platform screw rod and the external diameter of described first screw thread (6) is 1 ~ 2 millimeter.
4. bolt as claimed in claim 1, it is characterized in that, described cylindrical screw (2) comprises the smooth surface (8) that a part of cylinder of described first end is formed.
5. bolt as claimed in claim 1, it is characterized in that, described bolt head (1) is outer-hexagonal bolt head, and described outer-hexagonal bolt head is coaxial with described bolt shank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520291779.7U CN204646933U (en) | 2015-05-07 | 2015-05-07 | A kind of bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520291779.7U CN204646933U (en) | 2015-05-07 | 2015-05-07 | A kind of bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204646933U true CN204646933U (en) | 2015-09-16 |
Family
ID=54099690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520291779.7U Expired - Fee Related CN204646933U (en) | 2015-05-07 | 2015-05-07 | A kind of bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204646933U (en) |
-
2015
- 2015-05-07 CN CN201520291779.7U patent/CN204646933U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200507 Address after: 100130 Zhaofeng Town, Shunyi District, Beijing Zhaofeng industrial base Tongxin Road No. 1 Patentee after: BAIC GROUP ORV Co.,Ltd. Address before: 101300, 99, Shuanghe Avenue, Renhe Town, Beijing, Shunyi District Patentee before: BEIJING AUTOMOBILE RESEARCH GENERAL INSTITUTE Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20210507 |