CN202991792U - Lock washer - Google Patents
Lock washer Download PDFInfo
- Publication number
- CN202991792U CN202991792U CN 201220756267 CN201220756267U CN202991792U CN 202991792 U CN202991792 U CN 202991792U CN 201220756267 CN201220756267 CN 201220756267 CN 201220756267 U CN201220756267 U CN 201220756267U CN 202991792 U CN202991792 U CN 202991792U
- Authority
- CN
- China
- Prior art keywords
- packing ring
- washer
- angle
- plane
- sawtooth
- 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 - Lifetime
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Abstract
The utility model discloses a lock washer which comprises a first washer (1) and a second washer (2), wherein the first washer (1) and the second washer (2) are of round sheet shapes, and the centers of the first washer (1) and the second washer (2) are both provided with through holes; the upper surface of the first washer (1) is provided saw teeth (11) distributed along the circumference; the lower surface of the first washer (1) is provided with contact saw teeth (12) distributed along the circumference; saw tooth clamping grooves are arranged between adjacent contact saw teeth; the lower surface of the first washer (1) is mutually fit with the upper surface of the second washer (2); and the lower surface of the second washer (2) and the upper surface of the first washer (2) are the same in structure. The lock washer disclosed by the utility model is simple in structure, is convenient to install and detach, and can improve the lock performance obviously.
Description
Technical field
The utility model relates to a kind of locking device, relates in particular to a kind of lock washer.
Background technique
At present, the locking mode of conventional fasteners has following two kinds:
1. can realize the short-term anti-loosing effect by increasing frictional force, such as: spring washer, outer flank of tooth lock washer etc., but through after certain hour, can be because of former thereby reduction anti-loosing effects such as vibrations.
2. be out of shape by screw thread or machinery type realizes anti-loosing effect, but this mode stability is not high, has very large potential safety hazard.
The model utility content
The technical problems to be solved in the utility model is, for the prior art defects, provides a kind of installation, dismounting easily, the lock washer that anti-loosening property obviously improves.
The utility model adopts following technological scheme: a kind of lock washer, comprise the first packing ring (1) and the second packing ring (2), and the first packing ring, the second rounded sheet of packing ring, and the center is equipped with through hole; The first packing ring (1) upper surface is provided with circumferential sawtooth (11), the first packing ring (1) lower surface is provided with circumferential contact sawtooth (12), it is the sawtooth draw-in groove between the adjacent contact sawtooth, contact sawtooth (12) is comprised of the first inclined-plane (121) and the second inclined-plane (122), wherein the first inclined-plane (121) lift angle be acute angle and greater than with the matching used bolt of lock washer or nut on lead angle; The first packing ring (1) lower surface and the second packing ring (2) upper surface coincide mutually, and the second packing ring (2) lower surface is identical with the first packing ring (1) surface structure; The first inclined-plane lift angle refers to the angle of the first inclined-plane and horizontal plane, and lead angle refers to the angle of screw thread and horizontal plane.
Preferably, above-mentioned the first packing ring and the second washer-shaped, big or small identical.
Preferably, second inclined-plane (122) of above-mentioned contact sawtooth (12) is right angle or obtuse angle with the angle of horizontal plane.
The utility model is simple in structure, and installing/dismounting is all very convenient, can obviously improve anti-loosening property simultaneously, is fit to be applied to the occasion of high vibration or dynamic load.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in accompanying drawing:
Fig. 1 is the utility model structural representation;
Fig. 2 is the enlarged view of partial structurtes A in Fig. 1;
Fig. 3 is the first packing ring lower surface configuration schematic diagram;
Fig. 4 is the first upper surface of washer structural representation.
In above figure, 1-the first packing ring; 2-the second packing ring; The 11-sawtooth; 12-contacts sawtooth; 121-the first inclined-plane; 122-the second inclined-plane.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
As shown in Fig. 1～4, a kind of lock washer comprises the first packing ring 1 and the second packing ring 2, the first packing rings, the second rounded sheet of packing ring, and the center is equipped with through hole, the size of this through hole and suitable with the matching used bolt of lock washer or nut; The first packing ring 1 upper surface is provided with circumferential sawtooth 11, the first packing ring 1 lower surface is provided with circumferential contact sawtooth 12, it is the sawtooth draw-in groove between the adjacent contact sawtooth, contact sawtooth 12 forms (seeing Fig. 2) by the first inclined-plane 121 and the second inclined-plane 122, wherein the first inclined-plane 121 lift angles are acute angle, and greater than with the matching used bolt of lock washer or nut on lead angle namely the first inclined-plane lift angle and this screw thread screw opposite direction; The first packing ring 1 lower surface and the second packing ring 2 upper surfaces coincide mutually, and the second packing ring 2 lower surfaces are identical with the first packing ring 1 surface structure; Above-mentioned the first inclined-plane lift angle refers to the angle of the first inclined-plane and horizontal plane, and lead angle refers to the angle of screw thread and horizontal plane.
Can choose with the first washer-shaped, size, thickness all identical the second packing ring be used in conjunction with.
The second inclined-plane 122 of above-mentioned contact sawtooth 12 is right angle or obtuse angle with the angle of horizontal plane.
When there is no pretightening force, the first packing ring and the second packing ring can freely rotate, and in the situation that has pretightening force, the first packing ring is connected with sawtooth draw-in groove methods of anastomosis by the contact sawtooth with the second packing ring.In use, the first upper surface of washer sawtooth applying bolt or nut, when being subjected to external force vibration, bolt or nut have the trend that screws out toward loose direction, and at this moment the first bead outer surface sawtooth withstands bolt or nut, stops bolt or nut to screw out.Simultaneously, because being subject to the resistance of outer surface sawtooth, nut can't screw out, vibration force makes first, second packing ring that the trend of relative separation be arranged, because of the contact sawtooth the first inclined-plane lift angle slightly larger than lead angle, first, second packing ring can not produce very large mutual displacement, and namely first, second packing ring is motionless, and bolt or nut are more loose tighter, cause and to get loose, thereby play locking effect.
The utility model is simple in structure, and installing/dismounting is all very convenient, can obviously improve anti-loosening property simultaneously, is fit to be applied to the occasion of high vibration or dynamic load.
Claims (3)
1. a lock washer, comprise the first packing ring (1) and the second packing ring (2), it is characterized in that:
Described the first packing ring, the second rounded sheet of packing ring, and the center is equipped with through hole;
The first packing ring (1) upper surface is provided with circumferential sawtooth (11), the first packing ring (1) lower surface is provided with circumferential contact sawtooth (12), it is the sawtooth draw-in groove between the adjacent contact sawtooth, contact sawtooth (12) is comprised of the first inclined-plane (121) and the second inclined-plane (122), wherein the first inclined-plane (121) lift angle be acute angle and greater than with the matching used bolt of lock washer or nut on lead angle;
Described the first packing ring (1) lower surface and the second packing ring (2) upper surface coincide mutually, and the second packing ring (2) lower surface is identical with the first packing ring (1) surface structure;
Described the first inclined-plane lift angle refers to the angle of the first inclined-plane and horizontal plane, and lead angle refers to the angle of screw thread and horizontal plane.
2. lock washer according to claim 1, is characterized in that: described the first packing ring and the second washer-shaped, big or small identical.
3. lock washer according to claim 1 is characterized in that: second inclined-plane (122) of described contact sawtooth (12) is right angle or obtuse angle with the angle of horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220756267 CN202991792U (en) | 2012-12-24 | 2012-12-24 | Lock washer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220756267 CN202991792U (en) | 2012-12-24 | 2012-12-24 | Lock washer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202991792U true CN202991792U (en) | 2013-06-12 |
Family
ID=48562976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220756267 Expired - Lifetime CN202991792U (en) | 2012-12-24 | 2012-12-24 | Lock washer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202991792U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389883A (en) * | 2014-09-12 | 2015-03-04 | 奥展实业有限公司 | Powerful locking nut structure |
| CN104847803A (en) * | 2014-02-19 | 2015-08-19 | 本田技研工业株式会社 | Engaged configuration of transmission component |
| CN109139669A (en) * | 2018-10-26 | 2019-01-04 | 北京中车重工机械有限公司 | A kind of check washer |
| CN109958703A (en) * | 2017-12-25 | 2019-07-02 | 比亚迪股份有限公司 | A kind of lock washer and preparation method thereof for threaded connector |
-
2012
- 2012-12-24 CN CN 201220756267 patent/CN202991792U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847803A (en) * | 2014-02-19 | 2015-08-19 | 本田技研工业株式会社 | Engaged configuration of transmission component |
| CN104847803B (en) * | 2014-02-19 | 2018-09-11 | 本田技研工业株式会社 | The joint construction of transmission parts |
| CN104389883A (en) * | 2014-09-12 | 2015-03-04 | 奥展实业有限公司 | Powerful locking nut structure |
| CN109958703A (en) * | 2017-12-25 | 2019-07-02 | 比亚迪股份有限公司 | A kind of lock washer and preparation method thereof for threaded connector |
| CN109958703B (en) * | 2017-12-25 | 2022-03-18 | 比亚迪股份有限公司 | Anti-loose washer for threaded connector and preparation method thereof |
| CN109139669A (en) * | 2018-10-26 | 2019-01-04 | 北京中车重工机械有限公司 | A kind of check washer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |