CN204878222U - Check bolt - Google Patents
Check bolt Download PDFInfo
- Publication number
- CN204878222U CN204878222U CN201520614716.0U CN201520614716U CN204878222U CN 204878222 U CN204878222 U CN 204878222U CN 201520614716 U CN201520614716 U CN 201520614716U CN 204878222 U CN204878222 U CN 204878222U
- Authority
- CN
- China
- Prior art keywords
- bolt
- hollow cylinder
- thrust
- nut
- cylinder body
- 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
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Dowels (AREA)
Abstract
The utility model discloses a check bolt, bolt are close to nut one end and are equipped with the thrust of three equipartition on bolt cylindrical surface. Have the hollow cylinder body with bolt cooperation, it has the recess of mutually supporting with the thrust to open on the cylinder, and the surface of the hollow cylinder body is bored and is had the three screw hole fixed of being used for. Behind the the threaded portion screw in screw hole of bolt, the surface of screw hole can be stayed to the thrust, and contacts with ATTACH SURFACES, embolias the hollow cylinder body from the nut, and messenger's recess is mutually supported with the thrust, and reuse holding screw fixes the locking work that the bolt can be accomplished to the hollow cylinder body, and is simple and convenient, the reliable operation.
Description
Technical field
The utility model relates to the field of being threaded, and is specifically related to a kind of chek bolt.
Background technique
Being threaded is Placement the most basic in various machinery, is also the most frequently used union piece.But be threaded often because the reasons such as mechanical vibration occur to loosen, machine broken down, even causes great personnel casualty accidents.The locking cardinal principle of threaded fastener is relatively rotating due to screw thread, thus locking thread be just at all prevent screw thread from relatively rotating.
At present comparatively conventional locking thread method mainly contains that friction is locking, machinery is locking and it is locking to destroy screw pair.The locking reliability that wherein rubs is poor, especially more easily causes danger under the operating mode that vibration, impact and load are larger.Machinery is locking is utilize slotted nut and cotter pin, round nut and the mode such as locked spacer, series connection steel wire to come locking.But the shortcoming of this anti-loose method not easily mounts and dismounts.And it is more obvious to destroy the locking shortcoming of screw pair, bolt can only use once, greatly reduces the utilization rate of material, and installing/dismounting is also very difficult.So a kind of structure is simple, reliable operation, and the invention of the chek bolt that can reuse seems particularly important.
Model utility content
The purpose of this utility model is a kind of chek bolt of design, can realize the function of screw retention simply and easily, and reliable operation, can reuse.
For achieving the above object, the technological scheme of a kind of middle chek bolt of the utility model is:
A kind of chek bolt, comprise bolt and hollow cylinder, described bolt and described hollow cylinder cooperatively interact between the two; Described bolt comprises helical thread portion and unthreaded sections, is provided with three thrusts at unthreaded sections and near described nut one end; Described hollow cylinder wall thickness offers three grooves corresponding with described thrust, and on the surface of described hollow cylinder, be drilled with three tapped holes; The shape of described hollow cylinder groove is corresponding with described thrust, and is Spielpassung between the two, and the diameter of described hollow cylinder hollow parts is greater than the diameter of nut.
Described thrust is all distributed in non-threaded cylindrical on the surface, and shape is rectangular-shaped or flat key shape.
Devise near one end of nut three thrusts that three are distributed in bolt periphery at bolt.The shape of thrust can be rectangular-shaped or flat key shape.A matching design open circles column piece with it, hollow diameter is greater than the diameter of nut, and on the wall thickness of open circles column piece, offered three grooves corresponding with three of the body of bolt thrusts.The surface of hollow cylindrical element is provided with three tapped holes.
Compared with prior art, in the utility model, a kind of chek bolt has following beneficial effect:
After in the utility model, the helical thread portion of chek bolt screws in tapped hole, three thrusts outside tapped hole, and contact with workpiece surface.Hollow cylindrical element is inserted in bolt from nut, and by groove and thrust corresponding matching, principle coordinates with keyway as key.With Cock screw hollow cylindrical element is fixed in connecting surface again and can completes the locking of bolt.
Accompanying drawing explanation
Fig. 1 is isometric drawing of the present utility model;
Fig. 2 is the plan view of the hollow cylinder coordinated with Fig. 1;
Fig. 3 is the erection drawing of Fig. 1 and Fig. 2.
Embodiment
A kind of chek bolt comprises bolt 1 and hollow cylinder 2.Described bolt 1 is provided with near nut 12 one end the thrust 11 that three are distributed in bolt circle damaged surface.Described hollow cylinder 2 comprises three grooves 21 cooperatively interacted with thrust 11 and for fixing tapped hole 22.After the helical thread portion screw-in tapped hole of bolt 1, thrust 11, outside tapped hole, contacts with connecting surface, then is inserted in from nut 12 by hollow cylinder 2, thrust 11 and groove 21 is cooperatively interacted and fixes hollow cylinder 2 to prevent loosening of bolt.
As shown in Figure 1, 2, described bolt 1 comprises helical thread portion and unthreaded sections to specific embodiment, and unthreaded sections is provided with three and is distributed in the cylindrical thrust 11 of bolt near nut 12 one end.The shape of described thrust 11 can be rectangular-shaped, flat key shape or other analogous shape, and thrust 11 exceeds the edge of nut 12.Groove 21 shape of described hollow cylinder 2 is corresponding with thrust 11, and is Spielpassung between the two.The hollow parts diameter of hollow cylinder 2 is greater than the diameter of nut 12, and the surface of hollow cylinder 2 is drilled with three uniform through holes, for positioning action.
Further embodiment as shown in Figure 3, after the helical thread portion screw-in tapped hole of bolt 1, can stay outside tapped hole by thrust 11, and contact with connecting surface, if now do not loosen measure, bolt gradually can loosen in work from now on, causes unnecessary accident.So be inserted in from nut 12 by hollow cylinder 2, groove 21 and thrust 11 are cooperatively interacted, and fasten hollow cylinder 2 with Cock screw and can complete the locking of screw thread.
Working principle of the present utility model screws in tapped hole by the helical thread portion of bolt 1, again hollow cylinder 2 is inserted in from nut 12, and groove 21 and thrust 11 are cooperatively interacted, and fasten hollow cylinder 2 with Cock screw and can complete the locking of screw thread, simple and convenient, and reliable operation, can reuse.
It will be understood by those skilled in the art that the embodiment of the present utility model shown in foregoing description and accompanying drawing only limits the utility model as an example and not.Function of the present utility model and structural principle can be revised arbitrarily under the principle not deviating from above-mentioned displaying.
Claims (2)
1. a chek bolt, is characterized in that: comprise bolt (1) and hollow cylinder (2), and described bolt (1) and described hollow cylinder (2) cooperatively interact between the two;
Described bolt (1) comprises helical thread portion and unthreaded sections, is provided with three thrusts (11) at unthreaded sections and near described nut (12) one end;
Described hollow cylinder (2) wall thickness offers three grooves (21) corresponding with described thrust (11), and on the surface of described hollow cylinder (2), be drilled with three tapped holes (22);
The shape of described hollow cylinder (2) groove (21) is corresponding with described thrust (11), and be Spielpassung between the two, and the diameter of described hollow cylinder hollow parts is greater than the diameter of nut (12).
2. chek bolt as claimed in claim 1, it is characterized in that: described thrust (11) is all distributed in non-threaded cylindrical on the surface, shape is rectangular-shaped or flat key shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520614716.0U CN204878222U (en) | 2015-08-14 | 2015-08-14 | Check bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520614716.0U CN204878222U (en) | 2015-08-14 | 2015-08-14 | Check bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204878222U true CN204878222U (en) | 2015-12-16 |
Family
ID=54822598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520614716.0U Expired - Fee Related CN204878222U (en) | 2015-08-14 | 2015-08-14 | Check bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204878222U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952760A (en) * | 2016-06-27 | 2016-09-21 | 无锡迪奥机械有限公司 | Fixedly-cooperated bolt and nut assembly |
| CN107717845A (en) * | 2017-11-21 | 2018-02-23 | 索格菲（苏州）汽车部件有限公司 | A kind of predetermined set of the not de- bolt of pine |
| CN115823089A (en) * | 2022-11-25 | 2023-03-21 | 昆明理工大学 | Part rotating structure and method for preventing screw from being compressed |
-
2015
- 2015-08-14 CN CN201520614716.0U patent/CN204878222U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952760A (en) * | 2016-06-27 | 2016-09-21 | 无锡迪奥机械有限公司 | Fixedly-cooperated bolt and nut assembly |
| CN107717845A (en) * | 2017-11-21 | 2018-02-23 | 索格菲（苏州）汽车部件有限公司 | A kind of predetermined set of the not de- bolt of pine |
| CN115823089A (en) * | 2022-11-25 | 2023-03-21 | 昆明理工大学 | Part rotating structure and method for preventing screw from being compressed |
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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: 20151216 |