CN217271359U - Positive and negative nut fastening anti-loosening sleeve - Google Patents
Positive and negative nut fastening anti-loosening sleeve Download PDFInfo
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- CN217271359U CN217271359U CN202123081292.0U CN202123081292U CN217271359U CN 217271359 U CN217271359 U CN 217271359U CN 202123081292 U CN202123081292 U CN 202123081292U CN 217271359 U CN217271359 U CN 217271359U
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- loosening
- nut
- locknut
- fastener
- sleeve
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Abstract
The utility model provides a positive and negative nut fastening anti-loosening cover, including first by fastener, second by fastener, fastening bolt, first by fastener and second by seted up the through-hole on the fastener, and fastening bolt one end runs through first by fastener and second by the fastener, fastening bolt one end is provided with locking extension, the fastening bolt outside is provided with second locknut, one side of second locknut is provided with first locknut, first locknut is equipped with the anti-loosening cover with second locknut's outside cover. The utility model discloses an anti-loosening sleeve is the setting of hexagonal prism form, and inside cavity setting, then can laminate mutually with a locknut and second locknut outside through anti-loosening sleeve is inboard for just restrict the rotation of nut behind first locknut and second locknut outside with anti-loosening sleeve, make externally shake also unable rotary displacement of lower nut, improve the locking effect of nut.
Description
Technical Field
The utility model relates to a mechanical fastening equipment technical field specifically is a positive and negative nut fastening anti-loosening cover.
Background
The bolt and nut are used for fixing various fastened pieces in the frequently-vibrated occasion without being loosened, and are important parts for connecting mechanical equipment parts and devices, and if the relative position of objects of the connected devices is displaced, loosening and gaps can be generated between the whole structures, so that the devices cannot normally operate or are damaged.
But the locking between bolt and the nut between current bolt and the nut is not hard up, can use pin or glue usually, and the former is too troublesome, and the latter can't guarantee for a long time not to become flexible to can't guarantee under the abominable condition in external environment not to produce between bolt and the nut not to become flexible.
SUMMERY OF THE UTILITY MODEL
The utility model provides a positive and negative nut fastening locking cover to solve the technical problem that ordinary bolt and nut connection structure is not hard up easily under externally shaking.
In order to realize the above object, the utility model provides a positive and negative nut fastening anti-loosening sleeve, including first by fastener, second by fastener, fastening bolt, first by the fastener with the second by seted up the through-hole on the fastener, and fastening bolt one end runs through first by fastener and second by the fastener, fastening bolt one end is provided with locking extension, the fastening bolt outside is provided with second locknut, one side of second locknut is provided with first locknut, first locknut is equipped with anti-loosening sleeve with second locknut's outside cover.
Further, the first locknut is arranged outside the locking extension part.
Furthermore, the screwing direction of the thread occlusion of the first locknut and the locking extension part is opposite to the screwing direction of the thread occlusion of the second locknut and the fastening bolt.
Furthermore, the anti-loosening sleeve is arranged in a hexagonal prism shape, and the inner part of the anti-loosening sleeve is arranged in a hollow mode.
Furthermore, check washers are installed outside the fastening bolts, the check washers are provided with bent portions outside, and the bent portions are arranged in six directions of the check washers.
Furthermore, the anti-loosening sleeve is provided with reinforcing plates on the outer side, and the number of the reinforcing plates is six.
The positive and negative nut fastening anti-loosening sleeve has the following beneficial effects: 1. the device is provided with locking extension through fastening bolt one end, the turning of first locknut and locking extension screw thread interlock is to opposite with second locknut and fastening bolt screw thread interlock, then when outside vibrations are transmitted to bolt and nut on, need let first locknut not hard up earlier just can let second locknut and fastening bolt produce not hard up simultaneously, need let first locknut and second locknut two opposite direction rotation mutually just can let first by the clearance that produces not hard up between fastener and the second by the fastener, make to improve greatly by the locking effect of fastener under the outside vibrations.
2. The device is arranged in a hexagonal prism shape through the anti-loosening sleeve, and the anti-loosening sleeve is arranged in a hollow mode, so that the anti-loosening sleeve can be attached to the outer side of the second anti-loosening nut through the inner side of the anti-loosening sleeve, the anti-loosening sleeve and the second anti-loosening nut are connected into a whole, the anti-loosening sleeve is sleeved on the outer side of the first anti-loosening nut and the outer side of the second anti-loosening nut, the rotation of the nuts is limited, the nuts cannot rotate and move under external vibration, and the anti-loosening effect of the nuts is improved.
3. And the anti-loosening sleeve is arranged in a structure which can be taken down at any time, so that the device also has the function of convenient disassembly at any time.
Drawings
Fig. 1 is a perspective view of a first embodiment of the present invention.
Fig. 2 is an internal perspective view of a first embodiment of the anti-loosening sleeve of the present invention.
Fig. 3 is a perspective view of the anti-loose sleeve according to the first embodiment of the present invention.
Fig. 4 is a perspective view of a second embodiment of the present invention.
Fig. 5 is an internal perspective view of a second embodiment of the present invention.
Fig. 6 is a perspective view of the anti-loose gasket of the present invention.
Fig. 7 is a perspective view of a second embodiment of the anti-loose cover of the present invention.
In FIGS. 1-7: 1-a first fastened piece, 2-a second fastened piece, 3-a fastening bolt, 4-an anti-loose sleeve, 5-a first locknut, 6-a second locknut, 7-an anti-loose extension part, 8-an anti-loose gasket, 9-a bending part and 10-a reinforcing sheet.
Detailed Description
Referring to fig. 1 to 7, an exploded view and a plan view of a front and back nut tightening anti-loosening sleeve are shown.
Example one
This embodiment provides a positive and negative nut fastening anti-loosening cover, including first by fastener 1, the second is by fastener 2, fastening bolt 3, first by fastener 1 and the second by seted up the through-hole on fastener 2, and fastening bolt 3 one end runs through first by fastener 1 and second by fastener 2, fastening bolt 3 one end is provided with locking extension 7, the fastening bolt 3 outside is provided with second locknut 6, one side of second locknut 6 is provided with first locknut 5, the outside cover of first locknut 5 and second locknut 6 is equipped with anti-loosening cover 4.
When the external vibration is transmitted to the bolt and the nut, the first locknut 5 needs to be loosened firstly to enable the second locknut 6 and the fastening bolt to generate loosening and simultaneously the first locknut 5 and the second locknut 6 need to be rotated in two opposite directions to enable the first fastened piece 1 and the second fastened piece 2 to generate loosening gaps, so that the loosening prevention effect of the fastened piece under the external vibration is greatly improved.
When the anti-loosening sleeve is specifically implemented, the anti-loosening sleeve 4 is arranged in a hexagonal prism shape, the inner part of the anti-loosening sleeve is also arranged in a hollow hexagonal prism shape, and the two nuts in the forward and reverse rotation directions are connected together to form a whole after being sleeved together, so that the nuts cannot rotate and displace under external vibration, and the anti-loosening effect of the nuts is improved.
Example two
This embodiment provides a positive and negative nut fastening locking cover, including first by fastener 1, the second by fastener 2, fastening bolt 3, first by fastener 1 and second by seted up the through-hole on fastener 2, and 3 one end of fastening bolt runs through first by fastener 1 and second by fastener 2, 3 one end of fastening bolt is provided with locking extension 7, the 3 outsides of fastening bolt are provided with second locknut 6, one side of second locknut 6 is provided with first locknut 5, the outside cover of first locknut 5 and second locknut 6 is equipped with locking cover 4, locking gasket 8 is installed in the 3 outsides of fastening bolt.
When the implementation, the 8 outside of check washer is provided with kink 9, the 4 outside of locking bush is provided with reinforcing plate 10, then can place check washer 8 between second locknut 6 and second by fastener 2 for after locking bush 4 cover is in first locknut 5 and the 6 outside of second locknut, can buckle the 9 kink on the check washer 8 to reinforcing plate 10 on the locking bush 4, thereby link into an integrated entity check washer 8 and locking bush 4, avoid locking bush 4 to drop in long-time the use.
The utility model relates to a positive and negative nut fastening anti-loosening cover theory of operation as follows: firstly, an anti-loose extension part 7 is arranged at one end of a fastening bolt 3, the screwing direction of the thread occlusion of a first anti-loose nut 5 and the anti-loose extension part 7 is opposite to the screwing direction of the thread occlusion of a second anti-loose nut 6 and the fastening bolt 3, when external vibration is transmitted to the bolt and the nut, the first anti-loose nut 5 needs to be loosened firstly to enable the second anti-loose nut 6 and the fastening bolt to be loosened, and simultaneously, the first anti-loose nut 5 and the second anti-loose nut 6 need to rotate in two opposite directions to enable a gap between a first fastened piece 1 and a second fastened piece 2 to be loosened, so that the anti-loose effect of the fastened pieces under the external vibration is greatly improved, then, the anti-loose sleeves 4 are arranged in a hexagonal prism shape, the inner parts of the anti-loose sleeves are arranged in a hollow mode, the inner sides of the anti-loose sleeves 4 can be attached and connected with the outer sides of the first anti-loose nut 5 and the second anti-loose nut 6 through the inner sides of the anti-loose sleeves 4, and the anti-loose sleeves can rotate the nuts 6 after the anti-loose sleeves 5 are sleeved on the outer sides of the first nut 5 and the second nut 6 The anti-loosening gasket 8 is provided with a bending part 9 at the outer side, the anti-loosening gasket 8 is installed at the outer side of the fastening bolt 3, and a reinforcing sheet 10 is arranged at the outer side of the anti-loosening sleeve 4, so that the anti-loosening gasket 8 can be placed between the second anti-loosening nut 6 and the second fastened piece 2, the bending part 9 on the anti-loosening gasket 8 can be bent towards the reinforcing sheet 10 on the anti-loosening sleeve 4 after the anti-loosening sleeve 4 is sleeved at the outer sides of the first anti-loosening nut 5 and the second anti-loosening nut 6, the anti-loosening gasket 8 and the anti-loosening sleeve 4 are connected into a whole, and the anti-loosening sleeve 4 is prevented from falling off in long-time use.
Claims (5)
1. The utility model provides a positive and negative nut fastening anti-loosening cover, includes that first by fastener (1), second by fastener (2), its characterized in that: the anti-loosening device is characterized in that a fastening bolt (3) penetrating through the first fastened piece (1) and the second fastened piece (2) is arranged on the first fastened piece, a first anti-loosening nut (5) and a second anti-loosening nut (6) which are meshed with threads and are opposite in screwing direction are arranged on the fastening bolt (3), and anti-loosening sleeves (4) are arranged on the outer sides of the first anti-loosening nut (5) and the second anti-loosening nut (6).
2. The positive and negative nut tightening anti-loosening sleeve as claimed in claim 1, wherein: one end of the fastening bolt (3) is provided with an anti-loosening extending part (7), and the first anti-loosening nut (5) is arranged on the outer side of the anti-loosening extending part (7).
3. The positive and negative nut tightening anti-loosening sleeve according to claim 1, characterized in that: the anti-loosening sleeve (4) is hollow, and the anti-loosening sleeve (4) is made of 304 stainless steel.
4. The positive and negative nut tightening anti-loosening sleeve as claimed in claim 1, wherein: the inner side of the anti-loosening sleeve (4) is attached to the outer sides of the first anti-loosening nut (5) and the second anti-loosening nut (6).
5. The positive and negative nut tightening anti-loosening sleeve according to claim 1, characterized in that: anti-loosening gaskets (8) are installed on the outer sides of the fastening bolts (3), bent portions (9) are arranged on the outer sides of the anti-loosening gaskets (8), and reinforcing plates (10) are arranged on the outer sides of the anti-loosening sleeves (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123081292.0U CN217271359U (en) | 2021-12-09 | 2021-12-09 | Positive and negative nut fastening anti-loosening sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123081292.0U CN217271359U (en) | 2021-12-09 | 2021-12-09 | Positive and negative nut fastening anti-loosening sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217271359U true CN217271359U (en) | 2022-08-23 |
Family
ID=82883141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123081292.0U Active CN217271359U (en) | 2021-12-09 | 2021-12-09 | Positive and negative nut fastening anti-loosening sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217271359U (en) |
-
2021
- 2021-12-09 CN CN202123081292.0U patent/CN217271359U/en active Active
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