CN212131030U - Anti-loosening bolt assembly - Google Patents
Anti-loosening bolt assembly Download PDFInfo
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- CN212131030U CN212131030U CN202020646127.1U CN202020646127U CN212131030U CN 212131030 U CN212131030 U CN 212131030U CN 202020646127 U CN202020646127 U CN 202020646127U CN 212131030 U CN212131030 U CN 212131030U
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- loose
- hole
- nut
- rod
- locking
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Abstract
The utility model provides a locking bolt assembly, which comprises a bolt, a nut and a locking unit, wherein the bolt comprises a bolt head and a screw rod extending outwards from the bolt head, and the free end of the screw rod deviating from the bolt head is provided with a locking hole; the nut is provided with a threaded hole matched with the screw rod; the locking unit comprises a locking rod, the locking rod can be inserted into the locking hole and can provide anti-falling resistance for the nut so as to prevent the nut from loosening.
Description
Technical Field
The utility model belongs to the technical field of the bolt, especially, relate to a locking bolt subassembly.
Background
The bolt is a fastener consisting of a bolt head and a screw (a cylinder with external threads), the fastener is matched with a corresponding nut and used for fastening and connecting one component to another component, and the bolt belongs to a detachable connecting piece and is widely applied to the fields of plate fastening, equipment assembly, part connection and the like.
When mechanical equipment runs, mechanical vibration is inevitably generated, long-term mechanical vibration causes the bolt to shake, the thread is worn, the fastening effect of the bolt is further poor, and the stability of the mechanical equipment is affected.
Currently, the nuts on the bolts are generally prevented from loosening by the operator for regular maintenance in a torque-up manner, which increases the labor cost of the mechanical equipment.
SUMMERY OF THE UTILITY MODEL
At least one object of the present invention is to provide a lock bolt assembly to prevent loosening of a nut.
To the above purpose, the present invention provides the following technical solutions:
according to an aspect of the present invention, there is provided a locking bolt assembly, comprising a bolt, a nut and a locking unit, wherein the bolt comprises a bolt head and a screw rod extending outwards from the bolt head, and a free end of the screw rod, which is away from the bolt head, is provided with a locking hole; the nut is provided with a threaded hole matched with the screw rod; the anti-loosening unit comprises an anti-loosening rod, the anti-loosening rod can be inserted into the anti-loosening hole, and can provide anti-loosening resistance for the nut.
According to the utility model discloses an exemplary embodiment, the first end of locking pole is provided with the external screw thread, the second end of locking pole has the locking pole head, the locking hole be with the internal thread hole that the external screw thread of locking pole matches, locking unit still includes the locking cap, the first end of locking cap is provided with can cup joint nut accommodation hole on the surface of nut, the second end of locking cap is provided with the permission the through-hole that the locking pole passed works as the locking pole set up in during the locking hole, the locking pole head support press in the second end of locking cap.
Further, the nut is a polygonal nut, and the nut receiving hole is a polygonal hole having the same outer contour as the nut.
According to the utility model discloses a further exemplary embodiment, the cross section of locking pole is non-circular, locking unit is still including being fixed in deviating from of nut the locking piece of the one end of bolt head, locking piece is provided with the permission the through-hole that locking pole passed, the through-hole and locking hole respectively with the outline of locking pole is the same.
Optionally, the cross section of the anti-loosening rod is polygonal, semicircular or elliptical.
Further, the cross section of the anti-loosening rod is a regular hexagon.
According to the utility model discloses a first end is provided with the external screw thread, the second end of locking pole has the locking pole head, the locking hole be with the internal thread hole that the external screw thread of locking pole matches, work as the locking pole set up in during the locking hole, the locking pole head support press on the nut.
Further, the thread direction of the anti-loosening hole is opposite to the thread direction of the screw.
Preferably, the locking rod head is provided with a projection, and the projection can abut against the nut.
The utility model provides a check bolt subassembly has following beneficial effect: the check bolt assembly comprises a bolt, a nut and a check unit, one end of the bolt, which deviates from the bolt head, is provided with a check hole, the check rod can be inserted into the check hole, and anti-falling resistance can be provided for the nut, so that the nut can be prevented from loosening.
Drawings
The above and/or other objects and advantages of the present invention will become more apparent from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:
fig. 1 is a structural diagram of a locking bolt assembly applied to a mechanical device according to an exemplary embodiment of the present invention.
Fig. 2 is an exploded view of the lockbolt assembly of fig. 1.
Fig. 3 is a sectional view a-a of the lockbolt assembly in fig. 2.
Fig. 4 is a structural diagram of a check bolt assembly applied to a mechanical device according to another embodiment of the present invention.
Fig. 5 is an exploded view of the lockbolt assembly of fig. 4.
Fig. 6 is a B-B sectional view of the lockbolt assembly in fig. 5.
Description of reference numerals:
1: a bolt; 2: a nut;
3: a loosening prevention unit; 11: anti-loosening holes;
21: a threaded hole; 31: a locking bar;
32: a locking cap; 33: an anti-loosening element;
311: a locking rod head; 321: a nut receiving bore;
322. 331: a through hole; 4: and (4) mechanical equipment.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, it should not be understood that the aspects of the present invention are limited to the embodiments set forth herein. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
According to an aspect of the utility model, a locking bolt subassembly is provided, locking bolt subassembly includes bolt 1, nut 2 and locking unit 3, and bolt 1 includes the bolt head and the screw rod that outwards extends from the bolt head, and the free end that deviates from the bolt head of screw rod is provided with anti-loosening hole 11. The loosening prevention unit 3 includes a loosening prevention rod 31, and one end of the loosening prevention rod 31 can be inserted into the loosening prevention hole 11 and can provide resistance against the loosening prevention for the nut 2. For example, but not limited to, the nut 2 fastened on the bolt 1 can be disengaged from the bolt 1 by rotating in the clockwise direction, and the anti-loosing rod 31 will apply a resistance to the nut 2 in the counterclockwise direction, so as to prevent the nut 2 from being loosened, and further reduce the labor cost.
Fig. 1 is a structural diagram of a check bolt assembly applied to a mechanical device according to an exemplary embodiment of the present invention. Fig. 2 is an exploded view of the lockbolt assembly of fig. 1. Fig. 3 is a sectional view a-a of the lockbolt assembly in fig. 2.
As an example, referring to fig. 1 to 3, in the present embodiment, the loosening prevention unit 3 includes a loosening prevention rod 31 and a loosening prevention cap 32. The first end of the check rod 31 may be provided with external threads, and the second end of the check rod 31 has a check rod head 311, and the cross-sectional area of the check rod head 311 may be greater than that of the check rod 31. The anti-loosening hole 11 is an internal threaded hole that matches the external thread of the anti-loosening rod 31 so that the first end of the anti-loosening rod 31 can be inserted into the anti-loosening hole 11.
The first end of the locking cap 32 may be provided with a nut receiving hole 321 capable of being sleeved on the outer surface of the nut 2, and when the nut receiving hole 321 is sleeved on the nut 2, the locking cap 32 and the nut 2 do not rotate relatively.
Further, the second end of the locking cap 32 may be provided with a through hole 322 allowing the locking rod 31 to pass therethrough, the through hole 322 being capable of communicating with the nut receiving hole 321, and the locking rod 31 may be inserted into the locking hole 11 after passing through the through hole 322 and the nut receiving hole 321 in sequence. When the locking rod 31 is disposed in the locking hole 11, the locking rod head 311 can press against the second end of the locking cap 32. In this embodiment, since the locking cap 32 and the nut 2 do not rotate relatively, when the locking rod head 311 abuts against the second end of the locking cap 32, the locking rod head 311 can provide resistance against rotation of the locking cap 32, so as to provide resistance against loosening of the nut 2, and further achieve the purpose of preventing loosening of the nut 2.
Further, the through hole 322 of the locking cap 32 may be a light hole or a threaded hole.
In this embodiment, the cross section of the through hole 322 of the locking cap 32 may be circular, rectangular, oval, etc. The cross-sectional area of the through hole 322 of the locking cap 32 can be S2, the cross-sectional area of the first anti-loosening hole 11 can be S3, and the cross-sectional area of the head 311 of the locking rod can be S1, so that S3 is not less than S2 and is less than S1.
Further, the thread direction of the locking hole 11 and the thread direction of the screw may be opposite, so that in the case of the nut 2 having a loosening tendency, the locking rod 31 will have the same rotation tendency with the nut 2 under the action of the friction force between the locking rod head 311 and the nut 2, thereby tightening the threaded connection between the locking rod 31 and the bolt 1 to prevent the nut 2 from loosening.
Specifically, referring to fig. 3, the longitudinal section of the locking rod 31 may be a T-shaped structure, and the locking rod head 311 may be disposed perpendicular to the central axis of the rod portion of the locking rod 31, but is not limited thereto. The external thread of the first end of the anti-loosening rod 31 can continuously extend to the second end, and the length of the external thread can be set according to actual needs. Further, the nut 2 is a polygonal nut, and the nut receiving hole 321 is a polygonal hole having the same outer contour as the nut 2.
Specifically, the nut 2 may be a hexagonal nut, and the cross section of the nut receiving hole 321 may be a regular hexagon, so that the locking cap 32 can be sleeved on the periphery of the nut 2 and has no relative rotation with the nut 2, so that the locking rod head 311 is pressed against the second end of the locking cap 32, and the nut 2 is indirectly prevented from being loosened from the bolt 1 by preventing the locking cap 32 from rotating.
In this embodiment, the cross section of the locking rod head 311 in the direction perpendicular to the central axis of the locking rod 31 may be non-circular, so as to facilitate the screwing thereof, and of course, in the case that the cross section of the locking rod head 311 in the direction perpendicular to the central axis of the locking rod 31 is circular, the screwing may also be achieved by providing a "straight" groove or a "cross" groove on the outer end surface of the locking rod head 311, which facilitates the use of a screwing tool.
In this embodiment, the nut 2 may be firstly sleeved on the outer circumference of the screw and rotated to a predetermined position, then the nut receiving hole 321 of the locking cap 32 may be sleeved on the outer circumference of the nut 2, the locking rod 31 is inserted into the locking hole 11 and the locking rod 11 is screwed until the head 311 of the locking rod tightly abuts against the second end of the locking cap 32.
Fig. 4 is a structural diagram of a check bolt assembly applied to a mechanical device according to another embodiment of the present invention. Fig. 5 is an exploded view of the lockbolt assembly of fig. 4. Fig. 6 is a B-B sectional view of the lockbolt assembly in fig. 5.
The utility model discloses a further exemplary embodiment, locking unit 3 can include locking pole 31 and the fixed anti-loosening member 33 that sets up the one end that deviates from bolt 1 at nut 2, and the cross section of locking pole 31 in this embodiment can be the non-circular, and anti-loosening member 33 is provided with through-hole 331, and through-hole 331 and the locking hole 11 of anti-loosening member 33 can match with locking pole 31 respectively, and in this embodiment, the cross section of anti-loosening hole 11 can be the non-circular that matches with locking pole 31 promptly. Under the condition that the anti-loosening rod 31 penetrates into the anti-loosening hole 11 and the through hole 331 at the same time, the nut 2 can be prevented from loosening due to no relative rotation of the three.
The cross section of the locking bar 31 may be oval, semicircular, polygonal (e.g., rectangular, triangular, etc.), and preferably, the cross section of the locking bar 31 is regular polygonal, so as to be capable of uniformly applying force in the case where the nut 2 has a tendency to loosen. In this embodiment, the cross section of the locking rod 31 is a regular hexagon.
The anti-loosening element 33 and the nut 2 may be integrally formed, or the anti-loosening element 33 and the nut 2 may be fixed together by welding or the like after being separately formed.
In the present embodiment, the outer peripheral surface profile of the anti-loosening element 33 is the same as the outer peripheral surface profile of the nut 2, but not limited thereto.
In this embodiment, the nut 2 may be firstly sleeved on the outer circumference of the screw and rotated to a predetermined position, and the through hole 331 and the anti-loosening hole 11 are adjusted to be aligned, so that the anti-loosening rod 31 can be simultaneously inserted into the through hole 331 and the anti-loosening hole 11, and the anti-loosening rod 31 can be inserted.
In this embodiment, since the cross section of the locking rod 31, the cross section of the through hole 331, and the cross section of the locking hole 11 are non-circular shapes that match each other, in the case where the locking rod 31 is inserted into the through hole 331 and the locking hole 11 at the same time, the locking rod 31, the nut 2, and the bolt 2 cannot rotate relatively, and thus the nut 2 can be prevented from being loosened. In this embodiment, since the anti-loosening element 33 is directly connected to the nut 2, the anti-loosening rod 31 can directly provide resistance against loosening of the nut 2 when the nut 2 tends to loosen.
In addition to the above two embodiments, the present invention also provides a locking bolt assembly, which can omit the locking cap 32 and directly support the locking rod head 311 on the nut 2 (not shown) relative to the first embodiment.
Specifically, the side of the locking rod head 311 connected to the rod protrudes outward with a projection that is annularly arranged around the rod. Further, in this embodiment, a plurality of projections spaced apart from each other may be provided on the outer ring of the rod portion, and of course, there may be a connected ring structure on the outer ring of the rod portion. In the case where the check rod 31 is provided in the check hole 11, the protrusion may be pressed against the nut 2, that is, the check rod 31 in the present embodiment provides resistance to the nut 2 from being loosened by directly contacting the nut 2. In this embodiment, the length of the protrusion along the axial direction of the shaft portion can be selected according to actual needs.
The described features, structures, or characteristics of the invention may be combined in any suitable manner in one or more embodiments. In the description above, numerous specific details are provided to give a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the invention.
Claims (9)
1. A lockbolt assembly, comprising:
a bolt (1) comprising a bolt head and a screw extending outwardly from the bolt head, a free end of the screw facing away from the bolt head being provided with an anti-loosening hole (11);
the nut (2), the said nut (2) has threaded hole (21) matching with said threaded spindle;
locking unit (3), locking unit (3) include locking pole (31), locking pole (31) can insert in preventing pine hole (11), and can for nut (2) provide anti-drop's resistance.
2. A lock bolt assembly as defined in claim 1, wherein the first end of the lock rod (31) is provided with an external thread, the second end of the lock rod (31) has a lock rod head (311), the lock hole (11) is an internal thread hole matching the external thread of the lock rod (31), the lock unit (3) further comprises a lock cap (32), the first end of the lock cap (32) is provided with a nut receiving hole (321) capable of being sleeved on the outer surface of the nut (2), the second end of the lock cap (32) is provided with a first through hole (322) allowing the lock rod (31) to pass therethrough, and when the lock rod (31) is disposed in the lock hole (11), the lock rod head (311) is pressed against the second end of the lock cap (32).
3. A lockbolt assembly as claimed in claim 2, wherein the nut (2) is a polygonal nut, and the nut receiving hole (321) is a polygonal hole having the same outer profile as the nut (2).
4. Anti-loose bolt assembly according to claim 1, characterized in that the cross-section of the anti-loose rod (31) is non-circular, the anti-loose unit (3) further comprises an anti-loose piece (33) fixed to the end of the nut (2) facing away from the bolt head, the anti-loose piece (33) is provided with a second through hole (331) allowing the anti-loose rod (31) to pass through, and the second through hole (331) and the anti-loose hole (11) are respectively identical to the outer contour of the anti-loose rod (31).
5. Anti-loose bolt assembly according to claim 4, characterized in that the cross-section of the anti-loose rod (31) is polygonal, semicircular or elliptical.
6. Anti-loose bolt assembly according to claim 5, characterized in that the cross section of the anti-loose rod (31) is a regular hexagon.
7. Anti-loose bolt assembly according to claim 1, characterized in that the first end of the anti-loose rod (31) is provided with an external thread, the second end of the anti-loose rod (31) is provided with an anti-loose rod head (311), the anti-loose hole (11) is an internal thread hole matching with the external thread of the anti-loose rod (31), and when the anti-loose rod (31) is arranged in the anti-loose hole (11), the anti-loose rod head (311) is pressed against the nut (2).
8. Anti-loose bolt assembly according to claim 2, characterized in that the thread direction of the anti-loose hole (11) is opposite to the thread direction of the screw.
9. Anti-loose bolt assembly according to claim 8, characterized in that the anti-loose shank head (311) is provided with a projection which can abut on the nut (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020646127.1U CN212131030U (en) | 2020-04-24 | 2020-04-24 | Anti-loosening bolt assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020646127.1U CN212131030U (en) | 2020-04-24 | 2020-04-24 | Anti-loosening bolt assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212131030U true CN212131030U (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020646127.1U Active CN212131030U (en) | 2020-04-24 | 2020-04-24 | Anti-loosening bolt assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212131030U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113250449A (en) * | 2021-06-21 | 2021-08-13 | 江苏昊钢建筑科技有限公司 | Assembled steel bar truss building carrier plate |
-
2020
- 2020-04-24 CN CN202020646127.1U patent/CN212131030U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113250449A (en) * | 2021-06-21 | 2021-08-13 | 江苏昊钢建筑科技有限公司 | Assembled steel bar truss building carrier plate |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 830026 No. 107, Shanghai Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee after: Jinfeng Technology Co.,Ltd. Address before: 830026 No. 107, Shanghai Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee before: XINJIANG GOLDWIND SCIENCE & TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |