CN214998759U - Fastener capable of avoiding loosening - Google Patents
Fastener capable of avoiding loosening Download PDFInfo
- Publication number
- CN214998759U CN214998759U CN202121504116.0U CN202121504116U CN214998759U CN 214998759 U CN214998759 U CN 214998759U CN 202121504116 U CN202121504116 U CN 202121504116U CN 214998759 U CN214998759 U CN 214998759U
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- CN
- China
- Prior art keywords
- screw
- limiting
- screw thread
- bolt
- spiro union
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Abstract
The utility model discloses a fastener that can avoid pine to take off, bolt and nut including the looks spiro union, the bolt includes bolt head and screw rod, the screw rod lower extreme is provided with limit structure, the screw rod lower part is provided with the cavity, the cavity inner wall is provided with the screw thread, limit structure is including the spiro union portion that is provided with the second screw thread, screw thread and second screw thread looks adaptation, spiro union portion lower extreme is provided with two symmetrical limiting plates, the limiting plate is articulated mutually with spiro union portion lower extreme, two be connected with compression spring between the limiting plate. The utility model discloses be equipped with limit structure in the bolt lower part, limit structure can carry on spacingly to the nut behind the bolt at the nut spiro union, has guaranteed that the nut can not drop easily even when not hard up yet, and then has guaranteed the steadiness that the fastener is connected.
Description
Technical Field
The utility model relates to a bolt and nut fastener technical field, concretely relates to fastener that can avoid the pine to take off.
Background
Bolt and nut fastener is one of common fastener, but links by the screw thread between the bolt and nut, has the problem of easy not hard up, simultaneously, when bolt and nut received the vibration, not hard up bolt and nut can further lead to the pine of nut to take off, and then influences the fastening effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a simple structure, the fastener of avoiding the relative bolt pine of nut to take off to the not enough of existence among the above-mentioned background art.
In order to achieve the above object, the utility model relates to a fastener that can avoid the pine to take off has adopted following technical scheme:
the utility model provides a fastener that can avoid pine to take off, includes the bolt and the nut of looks spiro union, the bolt includes bolt head and screw rod, the screw rod lower extreme is provided with limit structure, the screw rod lower part is provided with the cavity, the cavity inner wall is provided with the screw thread, limit structure is including the spiro union portion that is provided with the second screw thread, screw thread and second screw thread looks adaptation, spiro union portion lower extreme is provided with two symmetrical limiting plates, the limiting plate is articulated mutually with spiro union portion lower extreme, two be connected with compression spring between the limiting plate.
The utility model relates to a can avoid further improvement part of fastener that pine takes off lies in, the limiting plate lower extreme also is provided with spacing chamber, the limiting plate below is provided with the setting element, the setting element includes the location head, and the overhead inserted bar that inserts spacing chamber that is provided with of location, location head cross-section equals with screw rod cross-section size.
The utility model relates to a can avoid further improvement part of fastener that pine takes off lies in, the inside spacing passageway that is provided with the slope of spiro union portion, spacing passageway runs through the bottom and the lateral wall of spiro union portion, be equipped with the gag lever post in the spacing passageway, gag lever post one end is equipped with the cushion, the cushion is inconsistent with the screw thread on the cavity inner wall, spacing passageway lower extreme is equipped with the shrouding, shrouding upper portion is equipped with the second cushion, the other end of gag lever post supports the second cushion.
The utility model relates to a can avoid the fastener's of pine to take off further improvement part lies in, the envelope card embedding spacing passageway.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses be equipped with limit structure in the bolt lower part, limit structure can carry on spacingly to the nut behind the bolt at the nut spiro union, has guaranteed that the nut can not drop easily even when not hard up yet, and then has guaranteed the steadiness that the fastener is connected.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: the screw bolt comprises a bolt head 1, a screw rod 2, a cavity 3, a thread joint part 4, a limiting plate 5, a compression spring 6, a positioning head 7, an insertion rod 8, a limiting channel 9, a limiting rod 10 and a sealing plate 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, a fastener capable of avoiding loosening comprises a bolt and a nut which are connected with each other in a threaded manner, wherein the bolt comprises a bolt head 1 and a screw rod 2, the lower end of the screw rod 2 is provided with a limiting structure, specifically, the lower part of the screw rod 2 is provided with a cavity 3, the inner wall of the cavity 3 is provided with threads, the limiting structure comprises a threaded connection part 4 provided with second threads, the threads are matched with the second threads, the lower end of the threaded connection part 4 is provided with two symmetrical limiting plates 5, the lower ends of the limiting plates 5 and the threaded connection part 4 are hinged, and two compression springs 6 are connected between the limiting plates 5. Rotate limit structure, the spiro union can descend, and at this moment, limit structure's limiting plate can not contact with the cavity inner wall of screw rod lower part gradually, receives the influence of compression spring elasticity, and the limiting plate can open, and at this moment, the limiting plate has played anti-drop's effect to the nut of spiro union on the screw rod.
Furthermore, the lower end of the limiting plate 5 is also provided with a limiting cavity, a positioning piece is arranged below the limiting plate and comprises a positioning head 7, an insertion rod 8 inserted into the limiting cavity is arranged on the positioning head, and the cross section of the positioning head is equal to the cross section of the screw rod in size. The positioning head is convenient to rotate the limiting structure, and meanwhile, the limiting plate is limited to be opened, so that the limiting structure can be conveniently rotated.
Further, the inside spacing passageway 9 that is provided with the slope of spiro union portion, spacing passageway runs through the bottom and the lateral wall of spiro union portion, be equipped with gag lever post 10 in the spacing passageway, gag lever post one end is equipped with the cushion, the cushion is inconsistent with the screw thread on the cavity inner wall, spacing passageway lower extreme is equipped with shrouding 11, the shrouding inlay card spacing passageway. And a second elastic pad is arranged on the upper part of the sealing plate, and the other end of the limiting rod is propped against the second elastic pad. The stop lever plays the conflict effect to threaded connection department on screwed part and the bolt inner chamber, reduces to take place behind the screwed part spiro union that the drunkenness is not hard up can, and then has guaranteed the locking pine of nut and has taken off.
The utility model discloses a theory of operation does: with the nut spiro union on the screw rod of bolt, rotate the location head, realize the whole rotation of limiting plate, spiro union portion, rotate the position back, extract the location head in the limiting plate, the limiting plate opens under the effect of elasticity, plays anti-drop effect to the nut, at this moment, the gag lever post also contradicts spiro union portion and screw rod inner chamber threaded connection department, guarantees the stability that the spiro union portion is connected, has guaranteed indirectly that the locking of nut takes off.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. A fastener capable of avoiding loosening, which comprises a bolt and a nut which are in threaded connection, wherein the bolt comprises a bolt head and a screw rod, and is characterized in that: the utility model discloses a screw rod, including screw rod, limiting structure, screw rod, screw thread, limiting structure, screw thread and second screw thread, the screw rod lower extreme is provided with the cavity, the cavity inner wall is provided with the screw thread, limiting structure is including the spiro union portion that is provided with the second screw thread, screw thread and second screw thread looks adaptation, spiro union portion lower extreme is provided with two symmetrical limiting plates, limiting plate and spiro union portion lower extreme are articulated, two be connected with compression spring between the limiting plate.
2. A fastener which avoids loosening according to claim 1, wherein: the lower end of the limiting plate is also provided with a limiting cavity, a positioning piece is arranged below the limiting plate and comprises a positioning head, an insertion rod inserted into the limiting cavity is arranged on the positioning head, and the cross section of the positioning head is equal to the cross section of the screw rod in size.
3. A fastener which avoids loosening according to claim 1, wherein: the utility model discloses a spacing passageway of screw-thread portion, including screw-thread portion, spacing passageway, sealing plate, the inside spacing passageway that is provided with the slope of screw-thread portion, spacing passageway runs through the bottom and the lateral wall of screw-thread portion, be equipped with the gag lever post in the spacing passageway, gag lever post one end is equipped with the cushion, the cushion is inconsistent with the screw thread on the cavity inner wall, spacing passageway lower extreme is equipped with the shrouding, shrouding upper portion is equipped with the second cushion, the other end of gag lever post supports the second cushion.
4. A fastener which avoids loosening according to claim 3, wherein: the sealing plate is embedded into the limiting channel in a clamping mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121504116.0U CN214998759U (en) | 2021-07-03 | 2021-07-03 | Fastener capable of avoiding loosening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121504116.0U CN214998759U (en) | 2021-07-03 | 2021-07-03 | Fastener capable of avoiding loosening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214998759U true CN214998759U (en) | 2021-12-03 |
Family
ID=79102054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121504116.0U Active CN214998759U (en) | 2021-07-03 | 2021-07-03 | Fastener capable of avoiding loosening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214998759U (en) |
-
2021
- 2021-07-03 CN CN202121504116.0U patent/CN214998759U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |