CN203655857U - Anti-loose locking gasket suitable for round hole and thread hole bolts - Google Patents
Anti-loose locking gasket suitable for round hole and thread hole bolts Download PDFInfo
- Publication number
- CN203655857U CN203655857U CN201420165431.9U CN201420165431U CN203655857U CN 203655857 U CN203655857 U CN 203655857U CN 201420165431 U CN201420165431 U CN 201420165431U CN 203655857 U CN203655857 U CN 203655857U
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- Prior art keywords
- intermediate washer
- pad
- stepped
- plane
- tooth platform
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Abstract
The utility model discloses an anti-loose locking gasket suitable for round hole and thread hole bolts. The anti-loose locking gasket comprises an upper outer gasket, a lower outer gasket and at least one intermediate gasket, both the outer gaskets and the intermediate gasket are circular ring-shaped, the inner diameters of the circular rings of all the outer gaskets and intermediate gasket are equal, the outer diameters are also equal, and the center of each circular ring serves as a through hole through which a bolt screw passes; the inner surfaces of the outer gaskets are assembled together relative to the upper and lower surfaces of the intermediate gasket, and moreover, the inner surfaces of the outer gaskets and the upper and lower surfaces of the intermediate gasket are ladder-shaped tooth surfaces; each ladder-shaped tooth surface is uniformly distributed with a plurality of ladder-shaped tooth tables, and the predetermined lift angle is 5% to 300% larger than the lead angle of the bolt. The anti-loose locking gasket suitable for round hole and thread hole bolts uses the geometric principle, the gaskets can be combined tightly, the connection tightness between the gasket and the bolt is strengthened, so that the bolt is avoided from loosening in vibration, and the safety is guaranteed.
Description
Technical field
The utility model relates to bolt type fixed structure, more specifically, relates to a kind of anti-loosening locking pad that is applicable to circular hole and tapped hole bolt.
Background technique
Bolt is to realize between metallic element in conjunction with fixing common structure.In use, can, by bolt through the perforate on a metallic element, then insert the tapped hole on another metallic element, by tightening the mutual interlock that realizes screw thread, thereby realize in conjunction with fixing.For this class formation, need the fastening reliability of strengthening stud, particularly under the environment of vibration, need to prevent due to vibration and dynamic load cause that bolt rotates with respect to tapped hole, cause bolt looseness even to come off, cause metallic element to be separated from each other and cause various faults and potential safety hazard.
In order to increase the area of contact of nut and metallic element of bolt, can put pad at the screw jacket being positioned at below nut, in the process of bolt tightening, nut is by pad contacting metal component indirectly.But, in the case of the spiro rod length of bolt is certain, add pad likely to shorten the running length of interlock between screw rod and the tapped hole of metallic element, bolt is more easily rotated with respect to tapped hole, cause bolt to get loose and outwards shift out.
Visible, pad of the prior art does not have wholesome effect for improving secure bond between bolt and metallic element, even has negative effect, is unfavorable for the anti-loose effect of strengthening stud.There is no a kind of anti-loosening locking pad that is applicable to circular hole and tapped hole bolt.
Model utility content
Based on above-mentioned deficiency of the prior art and defect, the utility model provides a kind of anti-loosening locking pad that is applicable to circular hole and tapped hole bolt, this pad by upper and lower two outer pads and at least one deck intermediate washer form, each pad combines based on the stepped flank of tooth respect to one another, and the step inclined lift angle of the stepped flank of tooth is greater than the lift angle of screw thread, makes bolt more be not easy to rotate and cause the situation getting loose.
A kind of anti-loosening locking pad that is applicable to circular hole and tapped hole bolt of profit described in the utility model, comprise upper and lower two outer pads and one deck intermediate washer at least, described outer pad and intermediate washer are ring, internal radius, the external diameter of all outer pads and intermediate washer are equal, and the central authorities of annulus are as the through hole passing for bolt screw rod, with respect to the upper and lower surface-assembled of described intermediate washer together, and the upper and lower surface of the internal surface of outer pad and intermediate washer is the stepped flank of tooth to the internal surface of described outer pad, on each stepped flank of tooth, be uniformly distributed several stepped tooth platforms, wherein, the each stepped tooth platform of superposed outer pad is outstanding downwards from the basal plane of this skin gasket body, this stepped tooth platform comprise along have with respect to described basal plane predetermined lift angle the downward-sloping extension of direction inclined-plane and from the end on inclined-plane perpendicular end surface vertically upward, the each stepped tooth platform that is positioned at the outer pad of bottom projects upwards from the basal plane of this skin gasket body, and this stepped tooth platform comprises along the be inclined upwardly inclined-plane that extends and from the end on inclined-plane perpendicular end surface vertically downward of the direction with respect to described basal plane with described predetermined lift angle, the each stepped tooth platform of described intermediate washer upper surface projects upwards from the basal plane of this intermediate washer main body, this stepped tooth platform comprises along the be inclined upwardly inclined-plane that extends and from the end on inclined-plane perpendicular end surface vertically downward of the direction with respect to described basal plane with described predetermined lift angle, and the each stepped tooth platform of described intermediate washer lower surface is outstanding downwards from the basal plane of this intermediate washer main body, this stepped tooth platform comprise along have with respect to described basal plane described predetermined lift angle the downward-sloping extension of direction inclined-plane and from the end on inclined-plane perpendicular end surface vertically upward, the relative laminating in inclined-plane of the inclined-plane of the stepped tooth platform of upper and lower outer pad and the stepped tooth platform on adjacent intermediate washer up/down surface after assembling, and the perpendicular end surface of the stepped tooth platform of upper and lower outer pad embeds the perpendicular end surface of the stepped tooth platform on adjacent intermediate washer up/down surface, thus make upper and lower outer pad and intermediate washer mutually chimeric, and described predetermined lift angle is greater than the lead angle of described bolt.
Preferably, described predetermined lift angle is than the lead angle of bolt large 5% to 300%.Further preferably, described predetermined lift angle is than the lead angle of bolt large 25%.
Preferably, described anti-loosening locking pad comprises one deck intermediate washer.
Preferably, described anti-loosening locking pad comprises multilayer intermediate washer, wherein the stepped flank of tooth of the upper surface of the intermediate washer of the topmost part is for mating the internal surface of upper outer layer pad, and the stepped flank of tooth of the lower surface of the intermediate washer of foot is for mating the internal surface of the outer pad in bottom.
Preferably, described stepped tooth platform is uniformly distributed along the toroidal surface of upper and lower outer pad and intermediate washer.
The quantity of the stepped tooth platform preferably, arranging on the stepped flank of tooth of each in the middle of outer pad and intermediate washer is no less than 8.
Preferably, the extended length on the inclined-plane of the each stepped tooth platform of outer pad and intermediate washer is identical, and the height of its perpendicular end surface is identical.
The utility model utilizes the wedge-like engagement between the stepped flank of tooth of outer pad and intermediate washer, and the high strength of material, high tenacity and high hardness, has reached the object that improves screw pair axial force under vibration environment; By suitable increasing, subtract the quantity of intermediate washer, pretightening force that can adjusting bolt, no matter pretightening force size all can ensure its reliability, goes for every field, can significantly improve Safety performance.
Be applicable to circular hole and tapped hole bolt utilizes geometrical principle, make can combine closely between pad, strengthen the close-coupled between pad and bolt simultaneously, thereby prevent that bolt from getting loose in vibration processes, reach safe effect.
Brief description of the drawings
Fig. 1 is the side view of the utility model embodiment's gasket construction;
Fig. 2 is the worm's eye view of the utility model embodiment's outer gasket construction;
Fig. 3 is the utility model embodiment's shim pack assembling structure schematic diagram;
Fig. 4 is the side view of another embodiment's of the utility model gasket construction;
Fig. 5 is another embodiment's of the utility model shim pack assembling structure schematic diagram.
Embodiment
By describing technology contents of the present utility model, structure characteristics in detail, being realized object and effect, below in conjunction with embodiment and coordinate accompanying drawing to be explained in detail.
Fig. 1 is the side view of the utility model embodiment's gasket construction.A kind of anti-loosening locking pad that is applicable to circular hole and tapped hole bolt described in the utility model, comprises upper and lower two outer pads, i.e. outer pad 1 and 2, and at least one deck intermediate washer, i.e. intermediate washer 3 in the present embodiment.Described outer pad 1,2 and intermediate washer 3 are ring, and internal radius, the external diameter of all outer pads and intermediate washer are equal, and the central authorities of annulus are as the through hole passing for bolt screw rod.After pad assembling, described outer pad 1 is positioned at the topmost part, and its internal surface fits together with respect to the upper surface of described intermediate washer 3; Outer pad 2 is positioned at foot, and its internal surface fits together with respect to the lower surface of intermediate washer 3.The outer internal surface of pad 1,2 and the upper and lower surface of intermediate washer 3 are the stepped flank of tooth 4, and on each stepped flank of tooth 4, are uniformly distributed several stepped tooth platforms.Wherein, the each stepped tooth platform 41 of superposed outer pad 1 is outstanding downwards from the basal plane of this skin pad 1 main body, this stepped tooth platform 41 comprise along have with respect to described basal plane predetermined lift angle α the downward-sloping extension of direction inclined-plane 41A and from the end on inclined-plane perpendicular end surface 41B vertically upward, similar ground, the each stepped tooth platform 42 that is positioned at the outer pad 2 of bottom projects upwards from the basal plane of these skin pad 2 main bodys, and this stepped tooth platform 42 comprises along the be inclined upwardly inclined-plane 42A that extends and from the end on inclined-plane perpendicular end surface 42B vertically downward of the direction with respect to described basal plane with described predetermined lift angle, the each stepped tooth platform 43 of described intermediate washer 3 upper surfaces projects upwards from the basal plane of this intermediate washer main body, this stepped tooth platform 43 comprises along the be inclined upwardly inclined-plane 43A that extends and from the end on inclined-plane perpendicular end surface 43B vertically downward of the direction with respect to described basal plane with described predetermined lift angle, and the each stepped tooth platform 43 of described intermediate washer 3 lower surfaces is outstanding downwards from the basal plane of this intermediate washer main body, this stepped tooth platform comprise along have with respect to described basal plane described predetermined lift angle the downward-sloping extension of direction inclined-plane 43A and from the end on inclined-plane perpendicular end surface 43B vertically upward.The worm's eye view of outer pad 1 as shown in Figure 2, wherein said stepped tooth platform 41 is uniformly distributed along the stepped flank of tooth of the toroidal of this skin pad 1, the quantity of the stepped tooth platform arranging on the stepped flank of tooth is no less than 8, and the extended length on the inclined-plane of stepped tooth platform is identical, and the height of its perpendicular end surface is identical.Quantity and the distribution of the stepped tooth platform that the outer internal surface of pad 2 and the upper and lower surface of intermediate washer 3 have are identical with outer pad 1, are no longer repeated in this description at this.
The relative laminating in inclined-plane of the inclined-plane of the stepped tooth platform of upper and lower outer pad 1,2 and the stepped tooth platform of adjacent intermediate washer 3 upper surfaces and lower surface after assembling, and the perpendicular end surface of the stepped tooth platform of upper and lower outer pad 1,2 embeds the perpendicular end surface of the stepped tooth platform of adjacent intermediate washer 3 upper surfaces and lower surface, thus make upper and lower outer pad and intermediate washer mutually chimeric.The Main Function of described stepped tooth platform is to improve screw pair axial force, avoid inserting bolt the rotating and moving down relative to tapped hole in pad, in order to reach this effect, as shown in Figure 3, require described predetermined lift angle α to be greater than the lead angle β of bolt, thereby what pad had makes bolt more be difficult for rotating getting loose compared with great-lift angle.Described predetermined lift angle α should be larger 5% to 300% than the lead angle β of bolt, through experiment repeatedly, when described predetermined lift angle α is during than the lead angle β of bolt large 25%, in improving screw pair axial force, can also make installing/dismounting more easy.
The object that the utility model is introduced intermediate washer in the middle of upper and lower outer pad is, can carry out by increasing or reduce the quantity of intermediate washer between the two pretightening force of fitted bolt, no matter pretightening force is to be greatly little, all can ensure its reliability.Fig. 4 shows the side view of another embodiment's of the utility model gasket construction.From this figure, this embodiment comprises two-layer intermediate washer, wherein the stepped flank of tooth of the upper surface of the intermediate washer 3 of the topmost part is for mating the internal surface of upper outer layer pad 1, and the stepped flank of tooth of the lower surface of the intermediate washer 3 of foot is for mating the internal surface of the outer pad 2 in bottom; And intermediate washer 3 is also realized and is embedded combination by the adjacent stepped flank of tooth each other.Fig. 5 is this embodiment's package assembly schematic diagram.
Thereby the utility model utilizes the wedge-like engagement between the stepped flank of tooth of outer pad and intermediate washer, and the high strength of material, high tenacity and high hardness, has reached the object that improves screw pair axial force under vibration environment; By suitable increasing, subtract the quantity of intermediate washer, pretightening force that can adjusting bolt, no matter pretightening force size all can ensure its reliability, goes for every field, can significantly improve Safety performance.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model specification and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (7)
1. one kind is applicable to the anti-loosening locking pad of circular hole and tapped hole bolt, it is characterized in that, comprise upper and lower two outer pads and one deck intermediate washer at least, described outer pad and intermediate washer are ring, internal radius, the external diameter of all outer pads and intermediate washer are equal, and the central authorities of annulus are as the through hole passing for bolt screw rod, with respect to the upper and lower surface-assembled of described intermediate washer together, and the upper and lower surface of the internal surface of outer pad and intermediate washer is the stepped flank of tooth to the internal surface of described outer pad, on each stepped flank of tooth, be uniformly distributed several stepped tooth platforms, wherein, the each stepped tooth platform of superposed outer pad is outstanding downwards from the basal plane of this skin gasket body, this stepped tooth platform comprise along have with respect to described basal plane predetermined lift angle the downward-sloping extension of direction inclined-plane and from the end on inclined-plane perpendicular end surface vertically upward, the each stepped tooth platform that is positioned at the outer pad of bottom projects upwards from the basal plane of this skin gasket body, and this stepped tooth platform comprises along the be inclined upwardly inclined-plane that extends and from the end on inclined-plane perpendicular end surface vertically downward of the direction with respect to described basal plane with described predetermined lift angle, the each stepped tooth platform of described intermediate washer upper surface projects upwards from the basal plane of this intermediate washer main body, this stepped tooth platform comprises along the be inclined upwardly inclined-plane that extends and from the end on inclined-plane perpendicular end surface vertically downward of the direction with respect to described basal plane with described predetermined lift angle, and the each stepped tooth platform of described intermediate washer lower surface is outstanding downwards from the basal plane of this intermediate washer main body, this stepped tooth platform comprise along have with respect to described basal plane described predetermined lift angle the downward-sloping extension of direction inclined-plane and from the end on inclined-plane perpendicular end surface vertically upward, the relative laminating in inclined-plane of the inclined-plane of the stepped tooth platform of upper and lower outer pad and the stepped tooth platform on the adjacent upper and lower surface of intermediate washer after assembling, and the perpendicular end surface of the stepped tooth platform of upper and lower outer pad embeds the perpendicular end surface of the stepped tooth platform on the adjacent upper and lower surface of intermediate washer, thus make upper and lower outer pad and intermediate washer mutually chimeric, and described predetermined lift angle is than the lead angle of bolt large 5% to 300%.
2. a kind of anti-loosening locking pad that is applicable to circular hole and tapped hole bolt according to claim 1, is characterized in that, described predetermined lift angle is than the lead angle of bolt large 25%.
3. a kind of anti-loosening locking pad that is applicable to circular hole and tapped hole bolt according to claim 1, is characterized in that, described anti-loosening locking pad comprises one deck intermediate washer.
4. a kind of anti-loosening locking pad that is applicable to circular hole and tapped hole bolt according to claim 1, it is characterized in that, described anti-loosening locking pad comprises multilayer intermediate washer, wherein the stepped flank of tooth of the upper surface of the intermediate washer of the topmost part is for mating the internal surface of upper outer layer pad, and the stepped flank of tooth of the lower surface of the intermediate washer of foot is for mating the internal surface of the outer pad in bottom.
5. a kind of anti-loosening locking pad that is applicable to circular hole and tapped hole bolt according to claim 1, is characterized in that, described stepped tooth platform is uniformly distributed along the toroidal surface of upper and lower outer pad and intermediate washer.
6. a kind of anti-loosening locking pad that is applicable to circular hole and tapped hole bolt according to claim 5, is characterized in that, the quantity of the stepped tooth platform arranging on the stepped flank of tooth of each in the middle of outer pad and intermediate washer is no less than 8.
7. a kind of anti-loosening locking pad that is applicable to circular hole and tapped hole bolt according to claim 5, is characterized in that, the extended length on the inclined-plane of the each stepped tooth platform of outer pad and intermediate washer is identical, and the height of its perpendicular end surface is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420165431.9U CN203655857U (en) | 2014-04-07 | 2014-04-07 | Anti-loose locking gasket suitable for round hole and thread hole bolts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420165431.9U CN203655857U (en) | 2014-04-07 | 2014-04-07 | Anti-loose locking gasket suitable for round hole and thread hole bolts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203655857U true CN203655857U (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420165431.9U Expired - Fee Related CN203655857U (en) | 2014-04-07 | 2014-04-07 | Anti-loose locking gasket suitable for round hole and thread hole bolts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203655857U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257668A (en) * | 2015-10-23 | 2016-01-20 | 青岛嘉恒新能源设备有限公司 | Novel loosening and disengaging preventing gasket |
| CN105909663A (en) * | 2016-06-03 | 2016-08-31 | 太仓市浏河镇巧梅五金加工厂 | Sealing gasket with buffering device |
-
2014
- 2014-04-07 CN CN201420165431.9U patent/CN203655857U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257668A (en) * | 2015-10-23 | 2016-01-20 | 青岛嘉恒新能源设备有限公司 | Novel loosening and disengaging preventing gasket |
| CN105909663A (en) * | 2016-06-03 | 2016-08-31 | 太仓市浏河镇巧梅五金加工厂 | Sealing gasket with buffering 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: 20140618 Termination date: 20190407 |
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| CF01 | Termination of patent right due to non-payment of annual fee |