CN2226168Y - Self-locking bolt assembly - Google Patents
Self-locking bolt assembly Download PDFInfo
- Publication number
- CN2226168Y CN2226168Y CN 95211203 CN95211203U CN2226168Y CN 2226168 Y CN2226168 Y CN 2226168Y CN 95211203 CN95211203 CN 95211203 CN 95211203 U CN95211203 U CN 95211203U CN 2226168 Y CN2226168 Y CN 2226168Y
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- CN
- China
- Prior art keywords
- space washer
- self
- shape
- nut
- bolt assembly
- 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
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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model discloses a self-locking and anti-loosing screw bolt assembly, being composed of a screw nut, screw bolt and a positioning washer. The bottom surface of the screw nut is provided with a thorn-shaped notch, a concave groove is arranged on the screw bolt in an axial direction, and the inner edge of the positioning washer is provided with a convexity corresponding to the notch on the screw bolt. A sponge gasket with a convex lug and a non-return gasket with a convex lug are designed in the utility model and are installed on the step surface of the positioning washer, and the upper end of the non-return gasket is provided with a pallet-shaped convexity corresponding to the thorn-shaped notch on the screw nut. The utility model can be demounted only by pressing the convex lugs into an open groove. The utility model which has the advantages of reliable loosing prevention and convenient demounting is suitable for dusty and dirty occasions.
Description
The utility model relates to a kind of screw bolt fastening piece, especially a kind of self-lock bolt assembly.
Notification number is the utility application of CN2102403U, provided a kind of " subassembly of lock bolt ", comprise: nut, bolt, packing ring, wherein, the nut bottom surface is provided with a plurality of circumferential sour jujube shape recesses that are uniformly distributed along the circumference, the thread section of bolt is provided with at least one radial groove that extends vertically, packing ring mesopore inner edge is provided with the radial protrusion of the groove tabling at least one and the bolt, and also be provided with at least one circumferential spinous shape that can be meshed on the packing ring and upwarp portion with all sour jujube shape recesses on the nut, this model utility is simple in structure, locking reliable, but exist following two defectives during the occasion that still need unclamp after being used to install: one is inconvenient for dismounting, in order to unclamp nut again, must set up a dismounting packing ring, use special-purpose rotation rod or little rod, it is many more that the spinous shape that is provided with on packing ring upwarps portion's quantity, and dismounting is trouble more; It two is that this subassembly of lock bolt is unsuitable for using in the many occasions of dust, grease, because under this occasion, the portion that upwarps of described packing ring following often because of long-pending completely dust, grease are blocked, bolt assembly is unclamped.
The purpose of this utility model is to overcome the above-mentioned defective that prior art exists, and provides a kind of locking reliable, simple in structure, and dismounting easily, and the self-lock bolt assembly that also can use in dust, occasion that grease is many.
The purpose of this utility model is achieved through the following technical solutions: the self-lock bolt assembly is by nut, bolt, space washer three parts are formed, on the nut bottom surface, be provided with a plurality of circumferential sour jujube shape recesses that are uniformly distributed along the circumference, the thread section of bolt is provided with at least one radial groove that extends vertically or is gone a part by truncation, the mesopore inner edge of space washer be provided with at least one can with the radial protrusion of the above groove tabling of bolt or with the radially convex surface that is matched by screw cutting, in the utility model, it is step-like in space washer is designed to, on space washer, be provided with " L " type or opening slot of falling the T-shape, this self-lock bolt assembly comprises that also one has stopping shim and sponge pad that has outer lug of outer lug, the upper-end surface of stopping shim is provided with at least one circumferential spinous shape projection that can be meshed with the sour jujube shape recess on the nut, sponge pad and stopping shim are placed on the interior step surface of space washer successively, embed in " L " type on the space washer or the groove of falling the T-shape by its outer lug to make it to interfix with space washer.
Be further to realize the purpose of this utility model, can be positioned on the interior step surface of space washer the sponge mat sheet below set up a spring again or set up an elastic ring that has lug, this elastic ring is provided with some shell fragments that are upturned.
The purpose of this utility model also can realize by the another kind of scheme of same design: this self-lock bolt assembly is by nut, bolt, space washer three parts are formed, on the nut bottom surface, be provided with a plurality of circumferential sour jujube shape recesses that are uniformly distributed along the circumference, the thread section of bolt is provided with at least one radial groove that extends vertically or is gone a part by truncation, the mesopore inner edge of space washer be provided with at least one can with the radial protrusion of the above groove tabling of bolt or with the radially convex surface that is matched by screw cutting, in this kind pattern, space washer is designed to outer step-like, on space washer, be provided with " L " type or opening slot of falling the T-shape, this self-lock bolt assembly comprises that also one has stopping shim and ring-type sponge pad of outer lug, the upper-end surface of stopping shim is provided with at least one circumferential spinous shape projection that can be meshed with the sour jujube shape recess on the nut, its inner rim be provided with space washer on " L " type or the corresponding internal lobes of the opening slot of falling the T-shape, sponge pad and stopping shim are placed on the outer step surface of space washer successively, and stopping shim embeds the opening slot on the space washer by the internal lobes on it and interfixes with space washer.
The purpose of this utility model also can realize by directly improving on prior art, that is this self-lock bolt assembly is by nut, bolt, packing ring is formed, the nut bottom surface is provided with a plurality of circumferential sour jujube shape recesses that are uniformly distributed along the circumference, the thread section of bolt is provided with at least one radial groove that extends vertically or side grain, the mesopore inner edge of packing ring is provided with the radial protrusion that groove at least one and the bolt or side grain match, and upwarp portion also being provided with at least one circumferential spinous shape that can be meshed on the packing ring with all sour jujube shape recesses on the nut, it is characterized in that: this self-lock bolt assembly also is provided with a sponge pad that is placed in below the packing ring, the sponge pad be provided with packing ring on circumferential spinous shape upwarp the corresponding triangular shape projection of portion.
Self-lock bolt assembly of the present utility model, during use, with the sponge pad, stopping shim is packed on the space washer, space washer interfixes by the projection on its inner rim or convex surface and bolt, floor clip is entrenched on the space washer by outer lug on it or internal lobes again, when fastening nut, sour jujube shape recess on the stopping shim upper-end surface on spinous shape projection and the nut is meshing with each other, make the nut self-locking, can only advance, can not move back, when need demounting bolt assembly, only need the outer lug of stopping shim is depressed angle of rotation, make outer lug snap in " L " type of space washer or the bottom of the opening slot of falling the T-shape, the spinous shape projection on the stopping shim withdraws from the sour jujube shape recess on the nut, just can back out nut, unclamp assembly, therefore adorn, it is very convenient to tear open, and because the effect of sponge pad, " L " type on the space washer or the opening slot of falling the T-shape are unlikely to be blocked, do not influence dismounting, thereby at dust, the occasion that grease is many also can be used as usual.
The Figure of description drawing is described as follows:
Fig. 1 is first kind of pattern self-lock bolt assembly perspective exploded view.
Fig. 2 be among Fig. 1 the locking and dismounting of self-locking with each member schematic representation.
Fig. 3 is the self-lock bolt assembly perspective exploded view of second kind of pattern.
Fig. 4 be among Fig. 3 the locking and dismounting of self-locking with each member schematic representation.
Fig. 5 is for being applicable to directly improved self-lock bolt assembly perspective exploded view on prior art.
Provide specific embodiment of the present utility model below in conjunction with Figure of description.As shown in Figure 1, the self-lock bolt assembly of first kind of pattern is by nut (1), space washer (2) and bolt (3) three parts are formed, shown in Figure 1A, on nut (1) bottom surface, be provided with a plurality of circumferential sour jujube shape recesses (101) that are uniformly distributed along the circumference, in Fig. 1 C, the thread section of bolt (3) is provided with at least one radial groove that extends vertically or is gone a part (301) by truncation, shown in Fig. 2 D, the mesopore inner edge of space washer (2) be provided with at least one can with the radial protrusion of the above groove tabling of bolt (3) or with the radially convex surface (201) that is matched by the screw cutting face, it is step-like in space washer (2) is designed to, on space washer (2), be provided with " L " type or the opening slot of falling the T-shape (202), as Fig. 2 A, shown in Fig. 2 B, this self-lock bolt assembly also comprises the stopping shim (4) and the sponge pad (5) that has outer lug (501) that have outer lug (401), the upper-end surface of stopping shim (4) is provided with at least one circumferential spinous shape projection (402) that can be meshed with the sour jujube shape recess (101) on the nut (1), sponge pad (5) and stopping shim (4) are placed on the interior step surface of space washer (2) successively, shown in Figure 1B, in " L " type or the opening slot of falling the T-shape (202) on its outer lug embedding space washer (2), make it to interfix with space washer (2).
Use when installing, with sponge pad (5), stopping shim (4) is put on space washer (2) step successively, and embed by its lug in the opening slot of space washer (2), spinous shape projection (402) on stopping shim this moment (4) exceeds the upper-end surface of space washer (2), space washer (2) is contained on the bolt (3), corresponding tangent plane (301) matches on sagittal plane (201) and the bolt because space washer (2) is gone up, make it to rotate mutually, screw on behind the nut (1), the spinous shape projection (402) of stopping shim (4) is meshed with sour jujube shape recess on the nut (1), nut (1) can only be advanced, can not move back, thereby reach self-locking, locking effect, when need demounting bolt assembly,, make the spinous shape projection (402) of stopping shim (4) be lower than the upper-end surface of space washer (2) by depressing outer lug (401) on the stopping shim (4) with its bottom that snaps in space washer (2) upper shed groove, and throw off, thereby can unclamp nut with nut.
In order to strengthen elasticity, reach better effect, can on the interior step surface of space washer (2), be positioned at and set up a spring again or set up an elastic ring (6) that has lug (601) below the sponge mat sheet (5), shown in Fig. 2 C, this elastic ring (6) is provided with some shell fragments that are upturned (602).
As shown in Figure 3, it is the perspective exploded view of the self-lock bolt assembly of second kind of pattern, form by nut (1), space washer (2) and bolt (3) three parts, on the nut shown in Fig. 3 A (1) bottom surface, be provided with a plurality of circumferential sour jujube shape recesses (101) that are uniformly distributed along the circumference, the thread section of bolt (3) is provided with at least one radial groove that extends vertically or is gone a part (301) by truncation, shown in Fig. 3 C.The mesopore inner edge of space washer (2) be provided with at least one can with the radial protrusion of the above groove tabling of bolt (3) or with the radially convex surface (201) that is matched by the screw cutting face, in this kind pattern, space washer (2) is designed to outer step-like, shown in Fig. 4 D, on space washer (2), be provided with " L " type or the opening slot of falling the T-shape (202), similarly, this self-lock bolt assembly also comprises the stopping shim (4) and the annular sponge pad (5) that have outer lug (401), respectively shown in Fig. 4 A and Fig. 4 B, the upper-end surface of stopping shim (4) is provided with at least one circumferential spinous shape projection (402) that can be meshed with the sour jujube shape recess (101) on the nut (1), its inner rim is provided with space washer (2) and goes up " L " type or the corresponding internal lobes of the opening slot of falling the T-shape (403), sponge pad (5) and stopping shim (4) are placed on the outer step surface of space washer (2) successively, shown in Fig. 3 B, stopping shim (4) is by in " L " type or the opening slot of falling the T-shape (202) on embedding space washer of the internal lobes (403) on it (2), make it to interfix, can not rotate with space washer (2).Fastening, the locking principle of this self-lock bolt and installation, method for dismounting are identical with first kind of pattern, similarly, also can below sponge pad (5), set up a spring (7), shown in Fig. 4 C, or set up an elastic ring (6) shown in Fig. 2 C to increase elasticity.
Another embodiment of the present utility model as shown in Figure 5, be directly on prior art, to improve to realize, that is this self-lock bolt assembly is by nut (1), bolt (3), packing ring (8) is formed, nut (1) bottom surface is provided with a plurality of circumferential sour jujube shape recesses (101) that are uniformly distributed along the circumference, the thread section of bolt (3) is provided with at least one radial groove that extends vertically or side grain (301), shown in Fig. 5 B, the mesopore inner edge of packing ring (8) is provided with the radial protrusion (802) that groove at least one and the bolt (3) or side grain (301) match, and upwarp portion (801) also being provided with at least one circumferential spinous shape that can be meshed on the packing ring (8) with all sour jujube shape recesses (101) on the nut (1), in the present embodiment, this self-lock bolt assembly also is provided with one and is placed in the following sponge pad (9) of packing ring (8), sponge pad (9) be provided with packing ring (8) on circumferential spinous shape upwarp the corresponding triangular shape projection of portion (801) (901), make the portion of upwarping (801) below be unlikely to be blocked and influence dismounting by dust or grease.
Self-lock bolt assembly of the present utility model, because of self-locking is locking reliably, dismounting is easy, can with the screw thread design of described bolt (3) multi start thread, its helical pitch is 2～20 times of standard same specification lead of screw thread, can be fastening fast in the use, can greatly increase work efficiency.
Claims (7)
1. self-lock bolt assembly, by nut, bolt, space washer three parts are formed, on the nut bottom surface, be provided with a plurality of circumferential sour jujube shape recesses that are uniformly distributed along the circumference, the thread section of bolt is provided with at least one radial groove that extends vertically or is gone a part by truncation, the mesopore inner edge of space washer be provided with at least one can with the radial protrusion of the above groove tabling of bolt or with the radially convex surface that is matched by screw cutting, of the present utility model being characterised in that: step-like in space washer is designed to, on space washer, be provided with " L " type or opening slot of falling the T-shape, this self-lock bolt assembly comprises that also one has stopping shim and sponge pad that has outer lug of outer lug, the upper-end surface of stopping shim is provided with at least one circumferential spinous shape projection that can be meshed with the sour jujube shape recess on the nut, sponge pad and stopping shim are placed on the interior step surface of space washer successively, embed in " L " type on the space washer or the groove of falling the T-shape by its outer lug to make it to interfix with space washer.
2. self-lock bolt assembly according to claim 1 is characterized in that: be positioned on the interior step surface of described space washer the sponge mat sheet below have additional a spring.
3. self-lock bolt assembly according to claim 1, it is characterized in that: be positioned on the interior step surface of described space washer the sponge mat sheet below have additional an elastic ring that has lug, this elastic ring is provided with some shell fragments that are upturned.
4. self-lock bolt assembly, by nut, bolt, space washer three parts are formed, on the nut bottom surface, be provided with a plurality of circumferential sour jujube shape recesses that are uniformly distributed along the circumference, the thread section of bolt is provided with at least one radial groove that extends vertically or is gone a part by truncation, the mesopore inner edge of space washer be provided with at least one can with the radial protrusion of the above groove tabling of bolt or with the radially convex surface that is matched by screw cutting, it is characterized in that: space washer is designed to outer step-like, on space washer, be provided with " L " type or opening slot of falling the T-shape, this self-lock bolt assembly comprises that also one has stopping shim and ring-type sponge pad of outer lug, the upper-end surface of stopping shim is provided with at least one circumferential spinous shape projection that can be meshed with the sour jujube shape recess on the nut, its inner rim be provided with space washer on " L " type or the corresponding internal lobes of the opening slot of falling the T-shape, sponge pad and stopping shim are placed on the outer step surface of space washer successively, and stopping shim embeds the opening slot on the space washer by the internal lobes on it and interfixes with space washer.
5. self-lock bolt assembly according to claim 4 is characterized in that: be positioned on the outer step surface of described space washer the sponge mat sheet below have additional a spring.
6. self-lock bolt assembly according to claim 4, it is characterized in that: be positioned on the outer step surface of described space washer the sponge mat sheet below have additional an elastic ring that has lug, this elastic ring is provided with some shell fragments that are upturned.
7. self-lock bolt assembly, by nut, bolt, packing ring is formed, the nut bottom surface is provided with a plurality of circumferential sour jujube shape recesses that are uniformly distributed along the circumference, the thread section of bolt is provided with at least one radial groove that extends vertically or side grain, the mesopore inner edge of packing ring is provided with the radial protrusion that groove at least one and the bolt or side grain match, and upwarp portion also being provided with at least one circumferential spinous shape that can be meshed on the packing ring with all sour jujube shape recesses on the nut, it is characterized in that: this self-lock bolt assembly also is provided with a sponge pad that is placed in below the packing ring, the sponge pad be provided with packing ring on circumferential spinous shape upwarp the corresponding triangular shape projection of portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95211203 CN2226168Y (en) | 1995-05-09 | 1995-05-09 | Self-locking bolt assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95211203 CN2226168Y (en) | 1995-05-09 | 1995-05-09 | Self-locking bolt assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2226168Y true CN2226168Y (en) | 1996-05-01 |
Family
ID=33861728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95211203 Expired - Fee Related CN2226168Y (en) | 1995-05-09 | 1995-05-09 | Self-locking bolt assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2226168Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005083278A1 (en) * | 2004-02-27 | 2005-09-09 | Yuen Liu | A loose-proof method used for secrew fastening unit and a device thereof |
| WO2012171241A1 (en) * | 2011-06-13 | 2012-12-20 | 励国庆 | Threaded connection device |
| CN102883979A (en) * | 2010-04-08 | 2013-01-16 | 霓达株式会社 | Paper sheet conveying roller |
| CN106437852A (en) * | 2016-08-30 | 2017-02-22 | 西安科技大学 | Fastening device of multiple information life detecting system for mine drilling rescue |
| CN109114092A (en) * | 2018-10-22 | 2019-01-01 | 鲁东大学 | A kind of Anti-loosen stop nut |
| CN109340240A (en) * | 2018-12-12 | 2019-02-15 | 哈尔滨电气动力装备有限公司 | Screw locking mechanism |
| CN109994978A (en) * | 2019-04-30 | 2019-07-09 | 宸逸电力科技有限公司 | A kind of self-locking type socket-clevis eye |
| CN116557402A (en) * | 2023-07-04 | 2023-08-08 | 四川蓝海智能装备制造有限公司 | Bolt anti-loosening structure, mounting and dismounting method and motor speed reducer structure |
-
1995
- 1995-05-09 CN CN 95211203 patent/CN2226168Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005083278A1 (en) * | 2004-02-27 | 2005-09-09 | Yuen Liu | A loose-proof method used for secrew fastening unit and a device thereof |
| CN100376811C (en) * | 2004-02-27 | 2008-03-26 | 刘玉恩 | Method of locking fastening device with screw thread and equipment |
| US7661914B2 (en) | 2004-02-27 | 2010-02-16 | Xiamen Yuchengjie Electromechanical Science & Technology Co., Ltd | Loosening-proof method used for a screw fastening unit and the device thereof |
| CN102883979A (en) * | 2010-04-08 | 2013-01-16 | 霓达株式会社 | Paper sheet conveying roller |
| CN102883979B (en) * | 2010-04-08 | 2016-06-29 | 霓达株式会社 | Paper transfer roller |
| WO2012171241A1 (en) * | 2011-06-13 | 2012-12-20 | 励国庆 | Threaded connection device |
| CN106437852A (en) * | 2016-08-30 | 2017-02-22 | 西安科技大学 | Fastening device of multiple information life detecting system for mine drilling rescue |
| CN109114092A (en) * | 2018-10-22 | 2019-01-01 | 鲁东大学 | A kind of Anti-loosen stop nut |
| CN109340240A (en) * | 2018-12-12 | 2019-02-15 | 哈尔滨电气动力装备有限公司 | Screw locking mechanism |
| CN109994978A (en) * | 2019-04-30 | 2019-07-09 | 宸逸电力科技有限公司 | A kind of self-locking type socket-clevis eye |
| CN109994978B (en) * | 2019-04-30 | 2024-06-21 | 宸逸电力科技有限公司 | Self-locking bowl head hanging plate |
| CN116557402A (en) * | 2023-07-04 | 2023-08-08 | 四川蓝海智能装备制造有限公司 | Bolt anti-loosening structure, mounting and dismounting method and motor speed reducer structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |