CN202805110U - Rapid fastening and disengaging device of double-end stud - Google Patents
Rapid fastening and disengaging device of double-end stud Download PDFInfo
- Publication number
- CN202805110U CN202805110U CN 201220504897 CN201220504897U CN202805110U CN 202805110 U CN202805110 U CN 202805110U CN 201220504897 CN201220504897 CN 201220504897 CN 201220504897 U CN201220504897 U CN 201220504897U CN 202805110 U CN202805110 U CN 202805110U
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- China
- Prior art keywords
- screw
- double
- studs
- fastening
- end stud
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- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of threaded connection, and particularly discloses a rapid fastening and disengaging device of a double-end stud. The rapid fastening and disengaging device of the double-end stud comprises a puller screw and a connecting nut. The puller screw comprises a screw head arranged at the upper end of the puller screw, a screw arranged at the lower end of the puller screw, and external threads processed on the outside of the screw. A clearance groove is processed inside the connecting nut. A through hole is formed in the bottom portion of the clearance groove. Internal threads are respectively processed inside the clearance groove and the through hole. The puller screw is adopted to be screwed into the connecting nut. The double-end stud needing to be tightened is screwed in the connecting nut. With the above method, the double-end stud is good in fastening effects, and meanwhile the double-end stud is capable of being disengaged.
Description
Technical field
The utility model belongs to the technical field that is threaded, and is specifically related to a kind of tightening up and release.
Background technology
In the assembling of engine turbine pump, the most forms that adopt blind-hole type studs, nut to connect of the connection of housing part flange, exist a large amount of studs to tighten up, when turbine pump decomposes, also need behind the engine test studs under the housing decomposition.Common studs uses version to see Fig. 1.
It is to adopt the double nut back of the body tight that traditional studs tightens up mode, that is: at first studs 1 is screwed in shell connected piece 3 and the housing 2, then the studs 1 at bared end is screwed into two nuts, with spanner two nuts are fixed in the middle of the double-screw bolt, back out end nut with spanner again, studs 1 is tightened up, divide at last and take off double nut.This kind mode not only installation effectiveness is low, and when decomposing double nut, make easily double-screw bolt loosening, if more disadvantageously in the assembled product kit without the plain nut of dimension, then need specially join two nuts and use as frock, easily cause the nut misloading, bring hidden danger to product quality.
Summary of the invention
The purpose of this utility model be to provide a kind of can improve Assembling Production efficient, have fastening studs quick-fastening and the release with mold release function of stud concurrently.
The realization the technical solution of the utility model is as follows:
A kind of studs quick-fastening and release, it comprises and holds out against screw and attaching nut, described hold out against screw comprise the upper end screw head, the screw rod of lower end is processed with external screw thread outward, described attaching nut inside is processed with undercut, the bottom opening through hole of undercut all is processed with internal thread in undercut and the through hole.
At above-mentioned studs quick-fastening and release, the height of described undercut is 6 ~ 10mm.
At above-mentioned studs quick-fastening and release, the described screw thread nominal diameter size that holds out against screw equates with the internal thread diameter of attaching nut upper end.
The obtained beneficial effect of the utility model is as follows: adopt to hold out against screw and screw in the attaching nut, the attaching nut is screwed into the stud that need tighten up, this kind mode studs tightens up effective, has simultaneously the function that stud is got loose.
Description of drawings
Fig. 1 is that common studs uses structure chart;
Fig. 2 is studs quick-fastening of the present utility model and release schematic diagram;
Among the figure: 1. studs; 2. housing; 3. connected piece; 4. hold out against screw; 5. attaching nut; 6. undercut.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in detail.
As shown in Figure 2, attaching nut's 5 profiles are identical with common left and right sides nut structure, and right-hand thread nominal diameter, pitch dimension are identical with fastened studs 1 bared end, about 6～8 buttons of reach, and present embodiment is got 7 buttons; The left-hand thread nominal diameter is more than or equal to the right-hand thread end.Width between two screwed holes, namely the height of undercut 6 is 8mm.The screw thread nominal diameter size that holds out against screw 4 is identical with attaching nut's 5 left-hand thread ends, and the screw thread effective length is greater than attaching nut's 5 left-hand thread length and 1/2nd undercuts, 6 width sums.
1) tightens up studs: at first will hold out against screw 4 and screw in attaching nut 5, the degree of depth is for holding out against screw 4 end faces at undercut 6 places (as shown in Figure 2), then attaching nut 5 is screwed into the stud 1(that need tighten up as shown in Figure 3), make the end face of stud 1 and hold out against screw 4 end contacts, be screwed to connect clockwise nut 5 to the required degree that tightens up with spanner, twist clockwise again and hold out against screw, take off frock after unloading power.
2) studs that gets loose: at first will hold out against screw 4 and screw in attaching nuts 5, the degree of depth is for holding out against screw 4 end faces at undercut 6 places (as shown in Figure 2), then attaching nut 5 is screwed into the stud 1(that need get loose as shown in Figure 3), make studs 1 end face and hold out against screw 4 end contacts, be fixedly connected with nut 5 six sides with spanner, twist counterclockwise with spanner simultaneously and hold out against screw 4, whereby power attaching nut 5 with hold out against screw 4 and be rotated counterclockwise simultaneously a low-angle, studs 1 can get loose.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from the spirit and scope of the present invention.If these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (3)
1. a studs quick-fastening and release, it is characterized in that: it comprises and holds out against screw (4) and attaching nut (5), described hold out against screw (4) comprise the upper end screw head, the screw rod of lower end is processed with external screw thread outward, described attaching nut (5) inside is processed with undercut (6), the bottom opening through hole of undercut (6) all is processed with internal thread in undercut (6) and the through hole.
2. studs quick-fastening as claimed in claim 1 and release, it is characterized in that: the height of described undercut (6) is 6 ~ 10mm.
3. studs quick-fastening as claimed in claim 1 or 2 and release is characterized in that: the described screw thread nominal diameter size that holds out against screw (4) equates with the internal thread diameter of attaching nut (5) upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220504897 CN202805110U (en) | 2012-09-28 | 2012-09-28 | Rapid fastening and disengaging device of double-end stud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220504897 CN202805110U (en) | 2012-09-28 | 2012-09-28 | Rapid fastening and disengaging device of double-end stud |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202805110U true CN202805110U (en) | 2013-03-20 |
Family
ID=47864053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220504897 Expired - Fee Related CN202805110U (en) | 2012-09-28 | 2012-09-28 | Rapid fastening and disengaging device of double-end stud |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202805110U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978461A (en) * | 2014-06-03 | 2014-08-13 | 安徽江淮汽车股份有限公司 | Tightening tool acting on stud bolt |
| CN105159392A (en) * | 2015-10-15 | 2015-12-16 | 国网浙江省电力公司丽水供电公司 | Magnetic adhesion operating handle |
| CN109746870A (en) * | 2019-03-08 | 2019-05-14 | 中铁工程装备集团有限公司 | Studs screwing device |
-
2012
- 2012-09-28 CN CN 201220504897 patent/CN202805110U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978461A (en) * | 2014-06-03 | 2014-08-13 | 安徽江淮汽车股份有限公司 | Tightening tool acting on stud bolt |
| CN103978461B (en) * | 2014-06-03 | 2016-03-16 | 安徽江淮汽车股份有限公司 | A kind of screwing tool acting on studs |
| CN105159392A (en) * | 2015-10-15 | 2015-12-16 | 国网浙江省电力公司丽水供电公司 | Magnetic adhesion operating handle |
| CN105159392B (en) * | 2015-10-15 | 2017-07-07 | 国网浙江省电力公司丽水供电公司 | A kind of magnetic suck operating handle |
| CN109746870A (en) * | 2019-03-08 | 2019-05-14 | 中铁工程装备集团有限公司 | Studs screwing device |
| CN109746870B (en) * | 2019-03-08 | 2023-04-28 | 中铁工程装备集团有限公司 | Double-end stud screwing device |
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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: 20180928 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |