CN209800497U - Stud plants end anti loosening structure - Google Patents
Stud plants end anti loosening structure Download PDFInfo
- Publication number
- CN209800497U CN209800497U CN201920286315.5U CN201920286315U CN209800497U CN 209800497 U CN209800497 U CN 209800497U CN 201920286315 U CN201920286315 U CN 201920286315U CN 209800497 U CN209800497 U CN 209800497U
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- stud
- loosening
- locking
- jackscrew
- stud body
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Abstract
The utility model provides a stud plants end anti loosening structure, including the stud body, nut and connecting piece, be equipped with the screw hole on the connecting piece, still include locking double-screw bolt, locking jackscrew, stud body lower extreme and locking double-screw bolt scarf joint, leave the clearance between the two, locking double-screw bolt is equipped with the external screw thread the same with stud body screw thread parameter, locking double-screw bolt and stud body screw in the screw hole of connecting piece in proper order, locking jackscrew is with the direction screw in connecting piece of perpendicular to stud body, locking jackscrew front end inserts in the clearance between locking double-screw bolt and the stud body. The utility model discloses locking effectual, the operational reliability is high, and locking jackscrew does not hinder and stud body and screw hole, is applicable to the occasion that the locking requirement is high to the stud.
Description
The technical field is as follows:
the utility model relates to a bolt anti loosening structure, especially stud insert end anti loosening structure.
Background art:
Stud is a mechanical connecting piece for fixed connection, and stud both ends all have the screw thread, are used for mining machinery, bridge, vehicle, boiler steel construction, tower crane, large-span steel construction and metallurgical equipment mostly. In actual work, one end of the stud bolt is planted into the internal thread of the fastened piece and screwed with the internal thread, and the other end of the stud bolt is fastened by a nut. The external load has vibration, change, material high temperature creep deformation and other factors to reduce friction force, so that the threaded connection is loosened, and the threaded connection is loosened to fail under the repeated action. Therefore, the locking is needed, otherwise, the normal work is affected, and accidents are caused. At present, when the stud is used for preventing looseness, the nut is usually prevented from loosening, and an anti-loosening structure for a stud inserting end is rare. The anti-loosening of the stud embedded end can improve the working reliability of the stud.
the utility model has the following contents:
An object of the utility model is to provide a stud that can effectively prevent the bolt not hard up end anti loosening structure of planting.
The problem of the utility model is realized with following technical scheme:
the utility model provides a stud plants end anti loosening structure, including the stud body, nut and connecting piece, be equipped with the screw hole on the connecting piece, still include locking double-screw bolt, locking jackscrew, stud body lower extreme and locking double-screw bolt scarf joint, leave the clearance between the two, locking double-screw bolt is equipped with the external screw thread the same with stud body screw thread parameter, locking double-screw bolt and stud body screw in the screw hole of connecting piece in proper order, locking jackscrew is with the direction screw in connecting piece of perpendicular to stud body, locking jackscrew front end inserts in the clearance between locking double-screw bolt and the stud body.
Above-mentioned stud plants end anti loosening structure, locking double-screw bolt are equipped with the hexagonal hole, and the bottom of stud body is equipped with the hexagonal head of inserting with the hexagonal hole matching closes.
Above-mentioned stud plants end anti loosening structure, the terminal surface that locking double-screw bolt and stud body correspond each other all is equipped with the chamfer that the angle is unanimous, locking jackscrew front end inserts the end for the circular cone, and the circular cone angle that the circular cone inserted the end is two times of locking double-screw bolt terminal surface or stud body terminal surface chamfer.
Above-mentioned stud plants end anti loosening structure, the chamfer that the terminal surface that locking double-screw bolt and stud body corresponded to each other set up is 45 degrees.
The utility model discloses to stud planting the end locking and design, its structure includes stud body, locking double-screw bolt and locking jackscrew. The stud body and the anti-loosening stud are embedded and connected with each other, and a gap for inserting the end part of the anti-loosening jackscrew is reserved between the stud body and the anti-loosening stud. During the use, the screw-in screw hole of locking double-screw bolt, stud body interconnect, then the locking jackscrew of screw-in, the clearance between locking double-screw bolt, the stud body is got into to the front end of locking jackscrew, and the position of stud body is reliably fixed promptly like this. The utility model discloses locking effectual, the operational reliability is high, and locking jackscrew does not hinder and stud body and screw hole, is applicable to the occasion that the locking requirement is high to the stud.
Drawings
the present invention will be further explained with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic structural view of the stud body;
FIG. 4 is a schematic structural view of a lock stud;
fig. 5 is a schematic structural view of the anti-loosening jackscrew.
the list of labels in the figure is: 1. the bolt comprises a connecting piece, 2, a stud body, 2-1, a hexagonal head, 3, a nut, 4, a locking stud, 4-1, a hexagonal hole, 5, a locking jackscrew, 5-1 and a conical insertion end.
Detailed Description
referring to fig. 1, the utility model discloses a stud body 2, match nut 3 and connecting piece 1 of closure with the stud body, be equipped with the screw hole on the connecting piece, the end screw in threaded hole of planting of stud body. For preventing that the stud body is not hard up in the use, the utility model discloses be equipped with locking double-screw bolt and locking jackscrew.
Referring to fig. 2 to 5, the bottom of the insertion end of the stud body 2 is provided with a hexagonal head 2-1. The anti-loosening stud 4 is provided with external threads with the same thread parameters as the stud body, the anti-loosening stud is also provided with a hexagonal hole 4-1, a hexagonal head is inserted into the hexagonal hole matched with the hexagonal head, and a gap is reserved between the lower end of the stud body and the anti-loosening stud. The end faces of the anti-loosening stud and the stud body, which correspond to each other, are provided with chamfers with the same angle. The front end of the anti-loosening jackscrew 5 is a conical insertion end 5-1, the anti-loosening jackscrew is screwed into the connecting piece in a direction perpendicular to the stud body, and the conical insertion end of the anti-loosening jackscrew is inserted into a gap between the anti-loosening stud and the stud body. In order to enable the conical insertion end of the anti-loosening jackscrew to be smoothly inserted into the anti-loosening stud and be matched and attached with the end faces of the anti-loosening stud and the stud body, chamfers with consistent angles are arranged on the end faces of the anti-loosening stud and the stud body, and the conical angle of the conical insertion end is twice of the chamfer angle of the end face of the anti-loosening stud or the end face of the stud body. In the illustrated embodiment, the chamfers of the end surface of the anti-loosening stud and the end surface of the stud body are both 45 °, and the taper angle of the conical insertion end of the anti-loosening jackscrew is 90 °.
When the utility model is used, the anti-loosening stud is sleeved on the hexagonal head of the stud body, the 45-degree chamfer of the anti-loosening stud is outward and screwed into the threaded hole of the connecting piece, after the end face of the anti-loosening stud is screwed into the threaded hole for a certain distance (smaller than the diameter of a jackscrew), the stud body is embedded into the threaded hole, and the stud body and the anti-loosening stud are screwed into the threaded hole together along the threaded hole; when the gap between the anti-loosening stud and the stud body is approximately aligned with the center of the internal thread hole of the anti-loosening jackscrew, the anti-loosening jackscrew is screwed in, the screwing position of the stud body is adjusted simultaneously, the screwing depth of the anti-loosening jackscrew is made to be the maximum, and then the anti-loosening jackscrew is screwed, so that the anti-loosening effect of the stud body can be realized. Because the anti-loosening jackscrew is not contacted with the thread part of the stud body, the threads of the stud body cannot be damaged in the anti-loosening process.
Claims (4)
1. The utility model provides a stud end of planting locking structure, includes stud body (2), nut (3) and connecting piece (1), is equipped with screw hole on the connecting piece, its characterized in that: the anti-loosening stud bolt structure is characterized by further comprising an anti-loosening stud bolt (4) and an anti-loosening jackscrew (5), wherein the lower end of the stud bolt body is embedded and connected with the anti-loosening stud bolt, a gap is reserved between the anti-loosening stud bolt and the anti-loosening stud bolt, the anti-loosening stud bolt is provided with external threads with the same thread parameters as those of the stud bolt body, the anti-loosening stud bolt and the stud bolt body are sequentially screwed into threaded holes of the connecting piece, the anti-loosening jackscrew is screwed into the connecting piece in the direction perpendicular to the stud.
2. The stud-embedded end looseness prevention structure of claim 1, wherein: the anti-loosening stud is provided with a hexagonal hole (4-1), and the bottom of the stud body is provided with a hexagonal head (2-1) which is matched and inserted with the hexagonal hole.
3. The stud-embedded end looseness prevention structure of claim 2, wherein: the corresponding end faces of the anti-loosening stud and the stud body are provided with chamfers with the same angle, the front end of the anti-loosening jackscrew is a conical insertion end (5-1), and the conical angle of the conical insertion end is twice of the chamfer of the end face of the anti-loosening stud or the end face of the stud body.
4. The stud-embedded end looseness prevention structure of claim 3, wherein: the chamfer angle of the end face of the anti-loosening stud and the end face of the stud body, which correspond to each other, are 45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920286315.5U CN209800497U (en) | 2019-03-07 | 2019-03-07 | Stud plants end anti loosening structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920286315.5U CN209800497U (en) | 2019-03-07 | 2019-03-07 | Stud plants end anti loosening structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209800497U true CN209800497U (en) | 2019-12-17 |
Family
ID=68823973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920286315.5U Active CN209800497U (en) | 2019-03-07 | 2019-03-07 | Stud plants end anti loosening structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209800497U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306410A (en) * | 2020-03-11 | 2020-06-19 | 苏州睿达矩自动化设备有限公司 | Installation support convenient for installing infrared camera |
-
2019
- 2019-03-07 CN CN201920286315.5U patent/CN209800497U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306410A (en) * | 2020-03-11 | 2020-06-19 | 苏州睿达矩自动化设备有限公司 | Installation support convenient for installing infrared camera |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |