CN210565677U - Nut pair structure and vehicle - Google Patents
Nut pair structure and vehicle Download PDFInfo
- Publication number
- CN210565677U CN210565677U CN201921087800.6U CN201921087800U CN210565677U CN 210565677 U CN210565677 U CN 210565677U CN 201921087800 U CN201921087800 U CN 201921087800U CN 210565677 U CN210565677 U CN 210565677U
- Authority
- CN
- China
- Prior art keywords
- nut
- ratchet
- screw
- hole
- peripheral surface
- 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.)
- Active
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 13
- 235000008331 Pinus X rigitaeda Nutrition 0.000 abstract description 3
- 235000011613 Pinus brutia Nutrition 0.000 abstract description 3
- 241000018646 Pinus brutia Species 0.000 abstract description 3
- 239000011295 pitch Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002337 anti-port Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Landscapes
- Connection Of Plates (AREA)
Abstract
The utility model relates to a vehicle spare part field provides a nut substructure and vehicle, the nut substructure includes: the bolt comprises a head, a first screw rod and a second screw rod which are coaxially connected in sequence; the reference nut is in threaded connection with the first screw rod, and an outer ratchet is arranged on the outer peripheral surface of the reference nut; and the inner circumferential surface of the locking nut comprises a threaded part for being in threaded connection with the second screw rod and an inner ratchet for interlocking with the outer ratchet of the reference nut. The problem of decay and pine take off easily appear after the long-time use of traditional nut substructure is solved.
Description
Technical Field
The utility model relates to a vehicle parts field specifically, relates to a nut substructure and vehicle.
Background
Most parts of the vehicle are connected and fastened by using a nut pair, and the clamping force is generated by applying a set fastening torque, so that the parts connected with each other are tightly connected. However, the working condition of the vehicle is severe, and the fastening torque of the thread pair is attenuated and seriously loosened due to various reasons, particularly vibration, in the using process of the durability test. Particularly, for chassis parts directly bearing vehicle body loads, the chassis parts bear various larger impact and vibration loads, and the phenomena of thread pair moment attenuation and loosening are easily generated under the action of external force, so that various problems of abnormal sound, part damage, performance attenuation and the like of vehicles are caused.
Therefore, it is the problem that the utility model discloses need not to solve to provide an anti-attenuation, anti-loosening to ensure the stable nut substructure of vehicle performance.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a nut auxiliary structure and vehicle has solved the problem that decay and pine take off appear easily after traditional nut auxiliary structure uses for a long time.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this: the utility model provides a nut auxiliary structure, nut auxiliary structure includes:
the bolt comprises a head, a first screw rod and a second screw rod which are coaxially connected in sequence;
the reference nut is in threaded connection with the first screw rod, and an outer ratchet is arranged on the outer peripheral surface of the reference nut;
and the inner circumferential surface of the locking nut comprises a threaded part for being in threaded connection with the second screw rod and an inner ratchet for interlocking with the outer ratchet of the reference nut.
Preferably, the reference nut includes a nut head and a ratchet portion which are coaxially disposed, inner circumferential surfaces of the nut head and the ratchet portion are each provided with an internal thread which engages with the first screw, and an outer circumferential surface of the ratchet portion is provided with the external ratchet.
Preferably, the locking nut is provided with a first through hole and a second through hole which are communicated with each other and coaxially arranged, the first through hole is in threaded connection with the second screw rod, and the inner circumferential surface of the second through hole is provided with the inner ratchet.
Preferably, the ratchet portion has a tapered outer circumferential surface tapering away from the nut head, the second through hole is a circular truncated cone hole corresponding to the ratchet portion, and a small end of the circular truncated cone hole is communicated with the first through hole.
Preferably, the free end of the ratchet portion is provided with an axially extending slot.
Preferably, a plurality of the slots are circumferentially provided at a free end of the ratchet portion.
Preferably, the inner ratchet teeth are capable of at least partially snapping into the slots when the inner ratchet teeth and the outer ratchet teeth are in an interlocked state.
Preferably, the diameter of the first screw is larger than the diameter of the second screw.
Preferably, the minor diameter of the thread structure on the first screw is larger than the major diameter of the thread structure on the second screw; the thread pitch of the threads on the first screw is greater than the thread pitch of the thread structure on the second screw.
The utility model also provides a vehicle, the vehicle mounting has foretell nut substructure.
Compared with the prior art, the utility model provides a nut substructure and vehicle, including bolt, reference nut and lock nut, when specifically using, pass the locking hole of spare part with the screw rod part of bolt (including first screw rod and second screw rod), twist the reference nut soon on first screw rod and reach according to technical requirement and screw up the moment, press from both sides spare part tightly, twist lock nut soon again on reference nut, at this moment, lock nut's screw thread portion and second screw rod threaded connection, lock nut's interior ratchet and the outer ratchet interlock on the reference nut, in order to reach restriction reference nut antiport's purpose, the utility model provides an above-mentioned technical scheme has strengthened bolt, reference nut and lock nut locking force each other, thereby has solved the easy decay of nut substructure and the problem that the pine takes off.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a structural diagram of an embodiment of a nut pair structure provided by the present invention;
FIG. 2 is a block diagram of a bolt of the nut sub-assembly shown in FIG. 1;
FIG. 3 is a front view of a reference nut of the nut sub-assembly shown in FIG. 1;
FIG. 4 is a top view of the reference nut shown in FIG. 3;
FIG. 5 is a cross-sectional view of the reference nut shown in FIG. 3;
FIG. 6 is a block diagram of the outer ratchet of the reference nut shown in FIG. 3;
FIG. 7 is a block diagram of the slot of the reference nut shown in FIG. 3;
FIG. 8 is a block diagram of a lock nut of the nut sub-assembly shown in FIG. 1;
FIG. 9 is a top view of the lock nut shown in FIG. 8;
FIG. 10 is a cross-sectional view of the lock nut shown in FIG. 8;
fig. 11 is a structural view of an inner ratchet of the lock nut shown in fig. 8.
Description of reference numerals:
1-bolt, 101-head, 102-first screw, 103-second screw, 2-datum nut, 201-nut head, 202-ratchet part, 203-notch, 3-lock nut, 302-second through hole, 303-first through hole, 4-part.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
In the present invention, unless otherwise specified, the use of directional terms such as "upper, lower, left, and right" generally means upper, lower, left, and right as illustrated with reference to the accompanying drawings; "inner and outer" refer to the inner and outer relative to the profile of the components themselves. The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 and fig. 2, the utility model provides a nut auxiliary structure, nut auxiliary structure includes: the bolt comprises a bolt 1, wherein the bolt 1 comprises a head 101, a first screw 102 and a second screw 103 which are coaxially connected in sequence; the reference nut 2 is in threaded connection with the first screw 102, and an outer ratchet is arranged on the outer peripheral surface of the reference nut 2; and a lock nut 3, wherein the inner circumferential surface of the lock nut 3 comprises a threaded part for being in threaded connection with the second screw 103 and an inner ratchet for interlocking with the outer ratchet of the reference nut 2. When the bolt is used specifically, a screw part (including the first screw 102 and the second screw 103) of the bolt 1 penetrates through a locking hole of the part 4, the reference nut 2 is screwed on the first screw 102 to achieve a screwing torque according to technical requirements so as to clamp the part 4, and the locking nut 3 is screwed on the reference nut 2, at the moment, a thread part of the locking nut 3 is in threaded connection with the second screw 103, an inner ratchet of the locking nut 3 is interlocked with an outer ratchet on the reference nut 2 so as to achieve the purpose of limiting the reverse rotation of the reference nut 2, so that the problem that a nut pair structure is easy to attenuate and loosen is solved.
As shown in fig. 3 to 4, in a preferred embodiment of the present invention, in order to facilitate mutual locking of the inner ratchet and the outer ratchet, the reference nut 2 includes a nut head 201 (for facilitating screwing of the nut head 201, the nut head may be a nut hexagon head, and of course, may be another nut head structure commonly used by those skilled in the art) and a ratchet portion 202, which are coaxially disposed, inner circumferential surfaces of the nut head 201 and the ratchet portion 202 are both provided with inner threads engaged with the first screw 102, and an outer circumferential surface of the ratchet portion 202 is provided with the outer ratchet. Here, the inner ratchet and the outer ratchet are uniformly distributed on the inner circumferential surface of the lock nut 3 and the outer circumferential surface of the ratchet portion 202, respectively, and the specific structure thereof is as shown in fig. 11 and 6.
The specific structure of the locking nut 3 can be set according to the use situation, as shown in fig. 8, 9 and 10, in a preferred embodiment of the present invention, the locking nut 3 is provided with a first through hole 303 and a second through hole 302 which are mutually communicated and coaxially disposed, the first through hole 303 is in threaded connection with the second screw 103, and the inner peripheral surface of the second through hole 302 is provided with the inner ratchet. Here, the first through hole 303 is used for screwing with the second screw 103, and the second through hole 302 is used for interlocking with the ratchet portion 202.
Further, the ratchet portion 202 has a tapered outer peripheral surface tapering away from the nut head 201, the second through hole 302 is a circular truncated cone hole corresponding to the ratchet portion 202, and a small end of the circular truncated cone hole is communicated with the first through hole 303. When the lock nut 3 is screwed to the ratchet portion 202, the circular truncated cone hole makes the ratchet portion 202 having the tapered outer circumferential surface contract inwardly and deform, so that the ratchet portion 202 generates a resilient force outwardly, thereby increasing the locking force between the inner ratchet and the outer ratchet.
In a preferred embodiment of the present invention, as shown in fig. 5 and 7, the free end of the ratchet portion 202 is provided with a slot 203 extending in the axial direction. Preferably, a plurality of the slots 203 are circumferentially arranged at the free end of the ratchet portion 202. The arrangement of the slot 203 is more beneficial to the shrinkage deformation of the ratchet part 202, thereby providing larger resilience force, further increasing the locking force between the inner ratchet and the outer ratchet, enabling the locking nut 3 to be screwed in according to the screwing direction and not to be screwed out reversely, and playing a better anti-loosening role.
In a preferred embodiment of the present invention, when the inner ratchet and the outer ratchet are interlocked, the inner ratchet can be at least partially snapped into the slot 203. The outer peripheral surface of the ratchet part 202 is contracted and deformed under the action of the circular truncated cone hole, and the reverse resilience force generated by the ratchet part 202 can enable the inner ratchet to pass over the outer ratchet and be clamped into the open slot 203 and then cannot be retracted, so that the reverse rotation of the locking nut 3 is further limited.
In a preferred embodiment of the present invention, in order to facilitate the mutual locking between the bolt 1, the reference nut 2 and the lock nut 3, the diameter of the first screw 102 is larger than the diameter of the second screw 103.
In a preferred embodiment of the present invention, the minor diameter of the thread structure on the first screw 102 is larger than the major diameter of the thread structure on the second screw 103.
Further, the pitch of the thread on the first screw 102 is greater than the pitch of the thread on the second screw 103. Two sections of thread structures with different thread pitches and thread diameters are arranged on the first screw 102 and the second screw 103 of the bolt 1, and form thread pairs with the reference nut 2 and the locking nut 3 respectively, and due to the fact that the thread pitches and the thread diameters are different, the distances of axial movement of the two are different under the condition of the same circumferential rotation angle, the two are limited to rotate reversely at the same angle under the condition that the ratchets are embedded, the effect of preventing moment attenuation or loosening is achieved, and looseness cannot be generated even under the strong vibration condition.
The utility model also provides a vehicle, the vehicle mounting has foretell nut substructure.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A nut pair structure, characterized in that it comprises:
the bolt (1), the bolt (1) includes a head (101), a first screw (102) and a second screw (103) which are coaxially connected in sequence;
the datum nut (2) is in threaded connection with the first screw (102), and an outer ratchet is arranged on the outer peripheral surface of the datum nut (2);
a lock nut (3), an inner peripheral surface of the lock nut (3) including a threaded portion for threaded connection with the second screw (103) and an inner ratchet for interlocking with the outer ratchet of the reference nut (2).
2. The nut pair structure according to claim 1, characterized in that said reference nut (2) comprises a nut head (201) and a ratchet portion (202) which are coaxially arranged, an inner peripheral surface of said nut head (201) and an inner peripheral surface of said ratchet portion (202) are each provided with an internal thread which is engaged with said first screw (102), and an outer peripheral surface of said ratchet portion (202) is provided with said external ratchet.
3. The nut pair structure according to claim 2, characterized in that said lock nut (3) is provided with a first through hole (303) and a second through hole (302) which are communicated with each other and coaxially provided, said first through hole (303) and said second screw (103) are screw-coupled, and an inner peripheral surface of said second through hole (302) is provided with said inner ratchet.
4. The nut pair structure according to claim 3, characterized in that said ratchet portion (202) has a tapered outer peripheral surface tapered away from said nut head (201), and said second through hole (302) is a circular truncated cone hole corresponding to said ratchet portion (202), and a small end of said circular truncated cone hole communicates with said first through hole (303).
5. Nut pair according to claim 4, characterized in that the free end of the ratchet portion (202) is provided with an axially extending slot (203).
6. The nut pair structure according to claim 5, characterized in that a plurality of said slots (203) are circumferentially provided at a free end of said ratchet portion (202).
7. The nut pair according to claim 5, characterized in that said inner ratchet is capable of at least partially snapping into said slot (203) when said inner ratchet and said outer ratchet are in an interlocked condition.
8. The nut pair according to claim 1, characterized in that the diameter of the first screw (102) is larger than the diameter of the second screw (103).
9. The nut pair structure according to claim 1, characterized in that the minor diameter of the thread structure on the first screw (102) is larger than the major diameter of the thread structure on the second screw (103);
the thread pitch of the thread structure on the first screw (102) is larger than the thread pitch of the thread structure on the second screw (103).
10. A vehicle, characterized in that the vehicle is equipped with the nut pair structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921087800.6U CN210565677U (en) | 2019-07-11 | 2019-07-11 | Nut pair structure and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921087800.6U CN210565677U (en) | 2019-07-11 | 2019-07-11 | Nut pair structure and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210565677U true CN210565677U (en) | 2020-05-19 |
Family
ID=70631887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921087800.6U Active CN210565677U (en) | 2019-07-11 | 2019-07-11 | Nut pair structure and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210565677U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112013006A (en) * | 2020-08-21 | 2020-12-01 | 嘉兴海缙五金科技股份有限公司 | Novel effectual track nut of taking latch type protection of locking moving device |
-
2019
- 2019-07-11 CN CN201921087800.6U patent/CN210565677U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112013006A (en) * | 2020-08-21 | 2020-12-01 | 嘉兴海缙五金科技股份有限公司 | Novel effectual track nut of taking latch type protection of locking moving device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20100183399A1 (en) | Anti-loosening fastener | |
| CN201013719Y (en) | Self-tightening type anti-drop anti-theft screw | |
| CN215762733U (en) | Locknut with double locking mechanism | |
| CN110608225A (en) | Can realize from anti vibration check bolt subassembly of locking-type | |
| CN210565677U (en) | Nut pair structure and vehicle | |
| CN211449343U (en) | Tooth-shaped locknut assembly | |
| CN210565555U (en) | Large-scale pull rod fixing device | |
| CN211820309U (en) | Anti-loosening bolt | |
| CN206458706U (en) | Eccentric T-shaped self-locking nut | |
| CN211648729U (en) | Novel fastener | |
| CN201246394Y (en) | Multifunctional anti-theft bolt and nut | |
| CN107218286B (en) | Fastening external member | |
| CN202402444U (en) | Fastening lock bolt | |
| CN216343295U (en) | High strength car seat locking solid bolt | |
| CN215634305U (en) | Impact-resistant bolt for automobile chassis | |
| CN211550227U (en) | Anti-loosening nut | |
| CN210218371U (en) | Combined lock nut | |
| CN204878248U (en) | An extended hexagonal connection nut | |
| CN209083787U (en) | A kind of hexagon slotted nut fastener | |
| CN219529535U (en) | Vibration-resistant anti-loose fastener | |
| CN220910203U (en) | Rivet nut rises with protective structure | |
| CN210830089U (en) | Anti-loosening and dustproof nut | |
| CN215567180U (en) | Cap nut | |
| CN201802730U (en) | A set of anti-loosening bolts | |
| CN218177700U (en) | Locking nut for automobile damping system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |