CN210531385U - Novel combined type locknut and auxiliary locking device - Google Patents
Novel combined type locknut and auxiliary locking device Download PDFInfo
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- CN210531385U CN210531385U CN201921307015.7U CN201921307015U CN210531385U CN 210531385 U CN210531385 U CN 210531385U CN 201921307015 U CN201921307015 U CN 201921307015U CN 210531385 U CN210531385 U CN 210531385U
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- nut
- wrench
- auxiliary locking
- fixing piece
- locking
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Abstract
The utility model discloses a novel combined anti-loose nut and auxiliary locking device, which comprises an inner nut, an outer nut and a fixing piece, wherein the outer nut and the fixing piece are all sheathed on the inner nut, the inner nut is connected with a bolt through screw threads, the inner nut is provided with a first inner screw thread and a second outer screw thread, the first inner screw thread is matched with the screw thread of the bolt, the outer nut is provided with a second inner screw thread matched with the second outer screw thread, the fixing piece is fixedly arranged on the inner nut, the fixing piece and the inner nut are relatively static, and the outer nut locks the fixing piece; the inner nut is provided with a first locking connecting portion, and the outer nut is provided with a second locking connecting portion. The utility model discloses an outer nut compresses tightly the mounting, and the vibration load of interior nut along the circumferencial direction is offset by the mounting, and radial force is offset by the screw-thread fit of outer nut and interior nut. During the installation, the utility model discloses need not effort repeatedly, the axial tension bolt can reach required pretightning force, safe and reliable, the stable performance.
Description
Technical Field
The utility model relates to a mechanical fastener field, in particular to novel combination formula locknut and supplementary locking utensil.
Background
In the maintenance process of industrial fields such as hot rolling plants and the like, the connecting shaft of large-scale equipment on the spot can rotate forwards or backwards when bearing steel, so that the bolt is easy to loosen, and the bolt is easy to shear due to shearing force after loosening. At present, a hydraulic wrench is used for fastening, but due to the influence of other factors such as narrow installation space, the situation of inaccurate fastening pretightening force is caused, and the fastening effect is poor. Loosening and fracture almost occur every week, and hidden troubles are buried in the whole production link. Therefore, a new type of combined locknut is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a novel combination formula locknut.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a novel combined type anti-loose nut comprises an inner nut, an outer nut and a fixing piece, wherein the outer nut and the fixing piece are both sleeved on the inner nut, the inner nut is connected with a bolt through threads, the inner nut is provided with a first inner thread and a second outer thread, the first inner thread is matched with the threads of the bolt, the outer nut is provided with a second inner thread matched with the second outer thread, the fixing piece is fixedly arranged on the inner nut, the fixing piece and the inner nut are relatively static, and the outer nut locks the fixing piece;
the inner nut is provided with a first locking connecting portion, and the outer nut is provided with a second locking connecting portion.
Stated further, the inner nut and the fixing piece are connected by a key.
An auxiliary locking device is applied to the novel combined type locknut in any one of the technical schemes, and comprises a first auxiliary locking part and a second auxiliary locking part, wherein the first auxiliary locking part is provided with a first locking port matched with the first locking connecting part, and the second auxiliary locking part is provided with a second locking port matched with the second locking connecting part;
first supplementary retaining member is equipped with first spanner head, the supplementary retaining member of second is equipped with second spanner head.
Stated further, the first wrench head is polygonal, and a first wrench corresponding to the first wrench head in shape wrenches the first wrench head;
the second wrench head is polygonal, and a second wrench corresponding to the second wrench head in shape wrenches the second wrench head.
Further elaborating, the first wrench head is provided with a first wrench handle.
Stated further, the second wrench head is provided with a second wrench handle.
The beneficial effects of the utility model reside in that: the first internal thread of the internal nut of the utility model is matched with the bolt; the second internal thread of the outer nut is matched with the second external thread of the inner nut, the outer nut compresses the fixing piece, the vibration load of the inner nut along the circumferential direction is counteracted by the fixing piece, and the radial force is counteracted by the thread matching of the outer nut and the inner nut. The utility model discloses simple to operate is swift, need not the effort of relapse, and the axial tension bolt can reach required pretightning force, safe and reliable, the stable performance.
Drawings
Fig. 1 is a sectional view of a composite locknut.
Fig. 2 is a schematic structural view of the combined locknut.
Fig. 3 is an exploded view of the composite locknut.
Fig. 4 is a schematic usage diagram of the first usage method in the first embodiment or the second embodiment.
Fig. 5 is a schematic usage diagram of the first usage method in the first embodiment or the second embodiment.
Fig. 6 is a schematic usage diagram of a second usage method in the first or second embodiment.
Reference numerals: 10. an inner nut; 11. a first locking connection; 20. an outer nut; 21. a second locking connection; 30. a fixing member; 40. a first auxiliary locking member; 41. a first locking port; 42. a first wrench head; 50. a second auxiliary locking member; 51. a second locking port; 52. a second wrench head.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
A novel combined type anti-loose nut comprises an inner nut 10, an outer nut 20 and a fixing piece 30, wherein the inner nut 10 is sleeved with the outer nut 20 and the fixing piece 30, the inner nut 10 is connected with a bolt through threads, the inner nut 10 is provided with a first inner thread and a second outer thread, the first inner thread is matched with the threads of the bolt, the outer nut 20 is provided with a second inner thread matched with the second outer thread, the fixing piece 30 is fixedly arranged on the inner nut 10, the fixing piece 30 and the inner nut 10 are relatively static, the fixing piece 30 can move synchronously along with the inner nut, and the fixing piece 30 is locked by the outer nut 20;
the inner nut 10 is provided with a first locking connection 11 and the outer nut 20 is provided with a second locking connection 21. As shown in fig. 3, the first lock connection portion 11 is specifically spline-shaped, but the specific shape of the first lock connection portion 11 is not limited to the shape shown in fig. 3. As shown in fig. 3, the second lock coupling portion 21 is embodied in a crenellated shape, but the embodied shape of the second lock coupling portion 21 is not limited to the shape shown in fig. 3.
The inner nut 10 and the fixing member 30 are connected by a key. As shown in fig. 3, the internal nut 10 and the fixing member 30 are specifically connected by a spline, but the internal nut 10 and the fixing member 30 are not limited to the spline shown in fig. 3, and the internal nut 10 and the fixing member 30 may be connected by other types of keys such as a guide key, a sliding key, a flat key, etc.
An auxiliary locking device is applied to a novel combined type locknut and comprises a first auxiliary locking part 40 and a second auxiliary locking part 50, wherein the first auxiliary locking part 40 is provided with a first locking port 41 matched with a first locking connecting part 11, and the second auxiliary locking part 50 is provided with a second locking port 51 matched with a second locking connecting part 21; as shown in fig. 4, since the first locking port 41 of the first auxiliary locker 40 is engaged with the first locking connection part 11 of the inner nut 10, the first locking port 41 should have a specific shape corresponding to the first locking connection part 11. Similarly, as shown in fig. 5, since the second locking port 51 of the second auxiliary locker 50 is engaged with the second locking coupling portion 21 of the male nut 20, the second locking port 51 should have a specific shape corresponding to the second locking coupling portion 21.
The first auxiliary locker 40 is provided with a first wrench head 42, and the second auxiliary locker 50 is provided with a second wrench head 52.
The first wrench head 42 is polygonal, and a first wrench corresponding to the shape of the first wrench head 42 wrenches the first wrench head 42;
the second wrench head 52 has a polygonal shape, and a second wrench corresponding to the shape of the second wrench head 52 wrenches the second wrench head 52. As shown in fig. 6, the first wrench head 42 of the first auxiliary locker 40 has a quadrangular concave shape, but the specific shape of the first wrench head 42 is not limited to the shape shown in fig. 6. As shown in fig. 5, the second wrench head 52 of the second auxiliary locker 50 has a hexagonal shape, but the specific shape of the second wrench head 52 is not limited to the shape shown in fig. 5.
The first embodiment is as follows: the first wrench head 42 is polygonal, and a first wrench corresponding to the shape of the first wrench head 42 wrenches the first wrench head 42; the second wrench head 52 has a polygonal shape, and a second wrench corresponding to the shape of the second wrench head 52 wrenches the second wrench head 52.
The first use method of the combined locknut in the first embodiment is based on a novel combined locknut and an auxiliary locking device, and the use steps of the combined locknut comprise:
1, as shown in FIG. 4, the fixing member 30 is inserted into the inner nut 10, and the first locking port 41 of the first subsidiary locking member 40 is inserted into the first locking connection portion 11 of the inner nut 10;
2, driving the first auxiliary locking member 40 by a first wrench, locking the inner nut 10 to the bolt by the first wrench according to the pretightening force, and synchronously rotating the fixing member 30 along with the inner nut 10;
a3, pulling the first auxiliary locking member 40 from the first locking connecting portion 11 of the inner nut 10, as shown in fig. 5, and inserting the second locking port 51 of the second auxiliary locking member 50 into the second locking connecting portion 21 of the outer nut 20;
4, driving the second auxiliary locking member 50 by a second wrench, screwing the outer nut 20 by the second wrench according to the pretightening force, and propping the fixing member 30 by the outer nut 20;
5, the second auxiliary locking member 50 is removed from the second locking connection portion 21 of the outer nut 20, and the assembling of the combined locknut is completed.
In a second embodiment of the first embodiment, the second use method of the combined-type locknut is based on a novel combined-type locknut and an auxiliary locking device, and the use steps of the combined-type locknut include:
b1, as shown in fig. 6, the fixing member 30 is inserted into the lower part of the inner nut 10, and a part of the second internal thread of the outer nut 20 is screwed into the upper part of the inner nut 10;
inserting the first subsidiary lock 40 into the second subsidiary lock 50;
b2, inserting the first locking mouth 41 of the first auxiliary locking member 40 into the first locking connection portion 11 of the inner nut 10, and inserting the second locking mouth 51 of the second auxiliary locking member 50 into the second locking connection portion 21 of the outer nut 20;
b3, driving the first auxiliary locking member 40 by a first wrench, locking the inner nut 10 to the bolt by the first wrench according to the pretightening force, and synchronously rotating the fixing member 30 along with the inner nut 10;
b4, driving the second auxiliary locking member 50 by a second wrench, screwing the outer nut 20 by the second wrench according to the pretightening force, and propping the fixing member 30 by the outer nut 20;
b5, the first auxiliary locking member 40 and the second auxiliary locking member 50 are respectively detached from the inner nut 10 and the outer nut 20, and the installation of the combined locknut is finished.
Example two: the first wrench head 42 has a polygonal shape; the second wrench head 52 has a polygonal shape. The first wrench head 42 is provided with a first wrench handle. The second wrench head 52 is provided with a second wrench grip.
In the second embodiment, the first use method of the combined locknut is based on a novel combined locknut and an auxiliary locking device, and the use steps of the combined locknut comprise:
c1, as shown in fig. 4, the fixing member 30 is inserted into the inner nut 10, and the first locking port 41 of the first subsidiary locking member 40 is inserted into the first locking connection part 11 of the inner nut 10;
c2, driving the first auxiliary locking member 40 by a wrench corresponding to the shape of the first wrench head 42 or a first wrench handle to lock the inner nut 10 to the bolt with a pre-tightening force, and the fixing member 30 synchronously rotates along with the inner nut 10;
c3, pulling the first auxiliary locking member 40 from the first locking connection portion 11 of the inner nut 10, as shown in fig. 5, and inserting the second locking port 51 of the second auxiliary locking member 50 into the second locking connection portion 21 of the outer nut 20;
c4, driving the second auxiliary locking member 50 by a wrench corresponding to the shape of the second wrench head 52 or a second wrench handle to tighten the outer nut 20 with a pre-tightening force, and the fixing member 30 is supported by the outer nut 20;
c5, the second auxiliary locking member 50 is removed from the second locking connection part 21 of the outer nut 20, and the assembling of the combined locknut is completed.
In a second embodiment of the present invention, a second method for using a combined locknut is based on a novel combined locknut and an auxiliary locking device, and includes the following steps:
d1, as shown in FIG. 6, the fixing member 30 is inserted into the lower portion of the inner nut 10, and a part of the second internal thread of the outer nut 20 is screwed into the upper portion of the inner nut 10;
inserting the first subsidiary lock 40 into the second subsidiary lock 50;
d2, inserting the first locking hole 41 of the first auxiliary locking member 40 into the first locking connection portion 11 of the inner nut 10, and inserting the second locking hole 51 of the second auxiliary locking member 50 into the second locking connection portion 21 of the outer nut 20;
d3, driving the first auxiliary locking member 40 by a wrench corresponding to the shape of the first wrench head 42 or a first wrench handle to lock the inner nut 10 to the bolt with a pre-tightening force, so that the fixing member 30 rotates synchronously with the inner nut 10;
d4, driving the second auxiliary locking member 50 by a wrench corresponding to the shape of the second wrench head 52 or a second wrench handle, tightening the outer nut 20 by the second wrench according to the pre-tightening force, and enabling the fixing member 30 to be supported by the outer nut 20;
d5, the first auxiliary locking member 40 and the second auxiliary locking member 50 are respectively detached from the inner nut 10 and the outer nut 20, and the installation of the combined locknut is finished.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (6)
1. The utility model provides a novel combination formula locknut which characterized in that: the bolt fastening device comprises an inner nut (10), an outer nut (20) and a fixing piece (30), wherein the inner nut (10) is sleeved with the outer nut (20) and the fixing piece (30), the inner nut (10) is in threaded connection with a bolt, the inner nut (10) is provided with a first internal thread and a second external thread, the first internal thread is matched with the thread of the bolt, the outer nut (20) is provided with a second internal thread matched with the second external thread, the fixing piece (30) is fixedly arranged on the inner nut (10), the fixing piece (30) and the inner nut (10) are relatively static, and the fixing piece (30) is locked by the outer nut (20);
the inner nut (10) is provided with a first locking connecting portion (11), and the outer nut (20) is provided with a second locking connecting portion (21).
2. The novel combined locknut of claim 1, wherein: the inner nut (10) is in key connection with the fixing piece (30).
3. An auxiliary locking device, characterized in that: the auxiliary locking device is applied to the novel combined type anti-loose nut as claimed in any one of the claims 1 to 2, the auxiliary locking device comprises a first auxiliary locking member (40) and a second auxiliary locking member (50), the first auxiliary locking member (40) is provided with a first locking port (41) matched with the first locking connecting part (11), and the second auxiliary locking member (50) is provided with a second locking port (51) matched with the second locking connecting part (21);
the first auxiliary locking member (40) is provided with a first wrench head (42), and the second auxiliary locking member (50) is provided with a second wrench head (52).
4. An auxiliary locking device as claimed in claim 3, wherein: the first wrench head (42) is polygonal, and a first wrench corresponding to the first wrench head (42) in shape wrenches the first wrench head (42);
the second wrench head (52) is polygonal, and a second wrench corresponding to the second wrench head (52) in shape wrenches the second wrench head (52).
5. An auxiliary locking device as claimed in claim 3, wherein: the first wrench head (42) is provided with a first wrench handle.
6. An auxiliary locking appliance as claimed in claim 3 or 5, wherein: the second wrench head (52) is provided with a second wrench handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921307015.7U CN210531385U (en) | 2019-08-13 | 2019-08-13 | Novel combined type locknut and auxiliary locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921307015.7U CN210531385U (en) | 2019-08-13 | 2019-08-13 | Novel combined type locknut and auxiliary locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210531385U true CN210531385U (en) | 2020-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921307015.7U Active CN210531385U (en) | 2019-08-13 | 2019-08-13 | Novel combined type locknut and auxiliary locking device |
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| Country | Link |
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| CN (1) | CN210531385U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332209A (en) * | 2019-08-13 | 2019-10-15 | 东莞市鑫屹机械设备有限公司 | A kind of novel Combined locknut and its application method |
-
2019
- 2019-08-13 CN CN201921307015.7U patent/CN210531385U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332209A (en) * | 2019-08-13 | 2019-10-15 | 东莞市鑫屹机械设备有限公司 | A kind of novel Combined locknut and its application method |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 523000 Room 101, building 3, No. 182, kuiqing Road, Qingxi Town, Dongguan City, Guangdong Province Patentee after: Xinyi (Guangdong) Industrial Service Co.,Ltd. Address before: 523000 floor 3, building g, No. 182, kuiqing Road, Qinghuang Industrial Zone, Qinghuang village, Qingxi Town, Dongguan City, Guangdong Province Patentee before: DONGGUAN XINYI MACHINERY EQUIPMENT Co.,Ltd. |
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| CP03 | Change of name, title or address |