CN208778455U - A kind of anti-loose connection bolt assembly - Google Patents
A kind of anti-loose connection bolt assembly Download PDFInfo
- Publication number
- CN208778455U CN208778455U CN201821321511.3U CN201821321511U CN208778455U CN 208778455 U CN208778455 U CN 208778455U CN 201821321511 U CN201821321511 U CN 201821321511U CN 208778455 U CN208778455 U CN 208778455U
- Authority
- CN
- China
- Prior art keywords
- bolt
- screw thread
- fastening nut
- screw
- loose
- 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
Landscapes
- Connection Of Plates (AREA)
Abstract
The utility model relates to machanical fastener fields, disclose a kind of anti-loose connection bolt assembly, it include: the first bolt, fastening nut and the second bolt, the first screw thread is equipped on the outside of the screw rod of first bolt, and it is internal through there is the first screw hole, second screw thread reversed with the first screw thread is equipped on the inside of first screw hole, the screw thread of first screw thread and fastening nut matches, the first end of fastening nut has the first pyramidal structure, the screw rod of second bolt is equipped with third screw thread, and third screw thread matches with the second screw thread, the head of second bolt is equipped with anti-loose structure, anti-loose structure is hollow structure, and the end edge of hollow structure is the second pyramidal structure, second pyramidal structure matches with the first pyramidal structure.While the utility model realizes bidirectional helical fastening, is contacted using fastening nut with the pyramidal structure of the second bolt, solve the problems, such as that fastening nut outward turning loosens, the utility model is designed reasonably, structure is simple, and fastening performance is good, convenient for disassembly and assembly.
Description
Technical field
The utility model relates to machanical fastener technical fields, more particularly to a kind of anti-loose connection bolt assembly.
Background technique
Bolt or screw assembly are used to the component to play the role of fastening, if the object loosening fastened can generate it is serious after
Fruit, such as the bolt connection of aircraft, rail, lathe transmission mechanism, will lead to serious accident and occur.So preventing from connecting
Component loosens the project of always people's research.The reason of nut bolt loosens has very much, such as in the case where sharp pounding, or
Due to since the body of bolt and fastener changes, leading to nut rubbing surface under alternating load or when temperature change is higher
On normal pressure reduce or disappear, cause on rubbing surface generate promote nut to loosen aspect rotation loosen torque, cause spiral shell
Mother loosens.The mode for preventing bolt looseness common at present has: double nut compresses, bolt and nut inserts key, bolt and nut aperture is inserted
Locking metallic rod, winding iron wire, the occlusion of bolt and nut latch or direct gluing or soldering etc. are connect, but the above method is due to that can not mention
For effectively preventing the opposing torque of bolt looseness, therefore effect is bad.The eccentric stop nut of country's Introduced from Japan at present, by
It is complicated higher technical using operation needs in processing, it promotes and bad.It is capable of providing the scheme of opposing torque at present, is to adopt
With the structure of positive and negative two kinds of screw threads, as Chinese patent discloses a kind of check bolt (application number: CN00202235.4): its structure is
It can be to needs when perhaps spacer for bolt is combined due to locking reversed nut or bolt operation using the nut of ordinary construction
One torque reversely loosened of bolt of fastening, therefore loosening for work nut is had resulted in operation.
Utility model content
(1) technical problems to be solved
The purpose of the utility model is to provide a kind of anti-loose connection bolt assemblies, solve screw bolt and nut in the prior art
The problem of loosening.
(2) technical solution
In order to solve the above-mentioned technical problem, the utility model provides a kind of anti-loose connection bolt assembly, comprising: the first spiral shell
The screw rod outside of bolt, fastening nut and the second bolt, first bolt is equipped with the first screw thread, and the screw rod of first bolt
Inside is equipped with the first screw hole, is equipped with second screw thread reversed with first screw thread, first spiral shell on the inside of first screw hole
The screw thread of line and the fastening nut matches, and the first end of the fastening nut has the first taper knot axially protruded
Structure, first pyramidal structure are that the direction extended axially outwardly gradually tapers up, and the screw rod of second bolt is equipped with third
Screw thread, and the third screw thread matches with second screw thread, the head of second bolt axially inward direction one
End is equipped with anti-loose structure, and the anti-loose structure is hollow structure, and the end edge of the hollow structure is the second pyramidal structure,
Second pyramidal structure matches with first pyramidal structure.
Wherein, the second end of the fastening nut is flat construction.
It wherein, further include the first gasket and the second gasket, first gasket and second gasket are set to described first
Between the head of bolt and the second end of the fastening nut.
Wherein, the depth of first screw hole is through entire first bolt.
Wherein, the hollow structure of second bolt and the cross of first pyramidal structure and second pyramidal structure
Section is circle.
Wherein, second bolt is interior angle screw or exterior angle screw, and the cross section shape on the head of second bolt
Shape is regular polygon.
Wherein, crack is radially equipped in first pyramidal structure.
Wherein, the crack number is multiple.
Wherein, the anti-loose structure of second bolt covers the first pyramidal structure of the fastening nut completely.
Wherein, the anti-loose structure of the head of second bolt and second bolt is dismountable separate structure.
(3) beneficial effect
A kind of anti-loose connection bolt assembly provided by the utility model, is revolved respectively using the bidirectional helical on the first bolt
Enter fastening nut and the second bolt, realizes bidirectional helical fastening, and connect using the pyramidal structure of fastening nut and the second bolt
Touching, when the second bolt screws, the fastening nut that opposing torque is not enough to have fastened originally is loosened, and is solved due to second
Bolt reversely screws in touch fastening nut after, the problem of causing fastening nut outward turning to loosen to fastening nut opposing torque,
And the anti-loose structure of the second bolt is hollow structure, and the outer cover of hollow structure can also protect the end of fastening nut and the first bolt
Mouth will not intake and by external force destruction.The anti-loose connection bolt assembly design of one kind provided by the utility model rationally, is tied
Structure is simple, and fastening performance is good, convenient for disassembly and assembly.
Detailed description of the invention
Fig. 1 is a kind of cross-sectional view of anti-loose connection bolt assembly of the utility model；
Fig. 2 is a kind of side structure schematic diagram of anti-loose connection bolt assembly of the utility model；
Fig. 3 is the cross-sectional view of the first bolt of the utility model；
Fig. 4 is the side structure schematic diagram of the first bolt of the utility model；
Fig. 5 is the cross-sectional view of the utility model fastening nut；
Fig. 6 is the side structure schematic diagram of the utility model fastening nut；
Fig. 7 is the cross-sectional view of the second bolt of the utility model；
Fig. 8 is the side structure schematic diagram of the second bolt of the utility model.
In figure, the 1, first bolt；111, the first screw thread；12, the first screw hole, the 121, second screw thread；2, the first gasket；30 Hes
31, fastening apparatus；4, the second gasket；5, fastening nut；512, the first pyramidal structure；513, crack；6, the second bolt；611,
The head of two bolts；612, anti-loose structure；613, the second pyramidal structure；621, third screw thread.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Example is not intended to limit the scope of the present invention for illustrating the utility model.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
As Figure 1-Figure 8, the utility model discloses a kind of anti-loose connection bolt assembly, comprising: the first bolt 1, tight
Gu the screw rod outside of nut 5 and the second bolt 6, first bolt 1 is equipped with the first screw thread 111, and the spiral shell of first bolt 1
It is equipped with the first screw hole 12 inside bar, is equipped on the inside of first screw hole 12 and the second reversed screw thread of first screw thread 111
121, the screw thread of first screw thread 111 and the fastening nut 5 matches, and the first end of the fastening nut 5 has along axis
To the first pyramidal structure 512 outstanding, first pyramidal structure 512 is that the direction extended axially outwardly gradually tapers up, institute
The screw rod for stating the second bolt 6 is equipped with third screw thread 621, and the third screw thread 621 matches with second screw thread 121, institute
The one end for stating the head 611 of the second bolt direction axially inward is equipped with anti-loose structure 612, and the anti-loose structure 612 is hollow
Structure, and the end edge of the hollow structure is the second pyramidal structure 613, second pyramidal structure 613 and described first
Pyramidal structure 512 matches.
Specifically, the thread parameters such as the first screw thread 111 and the rotation direction of the screw thread of fastening nut 5 and screw pitch are consistent, it can
Enough matchings screw in, and the thread parameters such as third screw thread 621 and the rotation direction of the second screw thread 121 and screw pitch are consistent, can match rotation
Enter.Fastening apparatus 30 and 31 is arranged between the head and fastening nut 5 of the first bolt 1, and the first bolt 1 passes through the first screw thread
111 are mutually matched screw-ins with the internal screw thread of fastening nut 5, and by third screw thread 621, (third screw thread 621 is outer spiral shell to the second bolt 6
Line) with the second screw thread 121 of the first screw hole 12 it is mutually matched screw-ins, reversely because of the first screw thread 111 and the second screw thread 121, utilization
The mode that bidirectional helical screws in, avoids loosening.Such as first screw thread 111 be it is left-handed, the second screw thread 121 is dextrorotation, can also be with the
One screw thread 111 is dextrorotation, and the second screw thread 121 is left-handed setting.Due to the second bolt 6 and fastening nut 5 screw-in direction on the contrary,
Therefore when screwing, the second bolt 6 can give fastening nut 5 one opposing torques, lead to loosening for bolt assembly, the utility model
In order to avoid this problem, the contact position of fastening nut 5 and the second bolt 6 is made into pyramidal structure, pyramidal structure suffers oppression deformation
Fastening nut 5 and the first bolt 1 are locked, due to being in contact at the taper of fastening nut 5 at this time, opposing torque is insufficient
To loosen the fastening nut fastened originally 5, solve after touching fastening nut 5 due to the reversed screw-in of the second bolt 6,
The possibility for causing 5 outward turning of fastening nut to loosen to 5 opposing torque of fastening nut.As shown in Figure 1, the first pyramidal structure 512 by
Main view is viewed as protruding axially outward, and the second pyramidal structure 613 matches with the first pyramidal structure 512, the first taper
Structure 512 and the gradient and height equidimension of the second pyramidal structure 613 are completely the same, realize matching, the first pyramidal structure 512
Long side far from the second bolt 6, short side close to the second bolt 6, the long side of the second hollow pyramidal structure 613 close to fastening nut 5,
Short side is far from fastening nut 5.After fastening nut 5 and the first bolt 1 are locked, as the continuation of the second bolt 6 reversely screws in the
The screw rod of one bolt 1 with fastening nut 5 until completely attach to, the entire bolt fastening course of work terminates.When 30 He of fastening apparatus
31 generation strenuous vibrations and cause fastening nut 5 occur loose moment when, will by both close contact to the second bolt 6 one
A Tightening moment reversely screwed, the more big Tightening moment reversely screwed of the torque of loosening is also bigger, causes the second bolt 6 completely
It can not loosen.It is in particular in that the gradient of the first pyramidal structure 512 is slightly less than the second pyramidal structure 613, in the first pyramidal structure
When 512 pressure by anti-loose structure, small deflection can be generated, after compression, force the gradient of the first pyramidal structure 512 with
The gradient of second pyramidal structure 613 is roughly the same.And since the anti-loose structure 612 of the second bolt 6 is hollow structure, hollow knot
The outer cover of structure can also protect the port of fastening nut 5 and the first bolt 1 will not intake and by external force destruction.
A kind of anti-loose connection bolt assembly provided by the utility model, is revolved respectively using the bidirectional helical on the first bolt
Enter fastening nut and the second bolt, realizes bidirectional helical fastening, and connect using the pyramidal structure of fastening nut and the second bolt
Touching, when the second bolt screws, the fastening nut that opposing torque is not enough to have fastened originally is loosened, and is solved due to second
Bolt reversely screws in touch fastening nut after, the problem of causing fastening nut outward turning to loosen to fastening nut opposing torque,
And the anti-loose structure of the second bolt is hollow structure, and the outer cover of hollow structure can also protect the end of fastening nut and the first bolt
Mouth will not intake and by external force destruction.The anti-loose connection bolt assembly design of one kind provided by the utility model rationally, is tied
Structure is simple, and fastening performance is good, convenient for disassembly and assembly.
As shown in figure 5, the second end of the fastening nut 5 is flat construction.Specifically, the second end of fastening nut 5 with
The end construction of plain nut is consistent, screws in towards the head of the first bolt 1, the head collective effect with the first bolt 1, folder
Tight fastening apparatus 30 and 31.
As shown in Figure 1, further including the first gasket 2 and the second gasket 4, first gasket 2 and second gasket 4 are set to
Between the head of first bolt 1 and the second end of the fastening nut 5.First gasket 2 is arranged in fastening apparatus 30,31 and
Between the head of first bolt 1, the second gasket 4 is arranged between fastening apparatus 30,31 and fastening nut 5, avoids wearing this spiral shell
Bolt assembly and fastening apparatus.According to actual needs, it can repeat to increase or decrease the quantity of gasket.
Wherein, the depth of first screw hole 12 is through entire first bolt 1.According to the actual situation, the first spiral shell
The depth in hole 12 can also be shorter than entire first bolt 1, i.e. the first screw hole 12 is deep from the screw rod end of the first bolt 1 to head
Enter, as shown in figure 3, the first screw hole 12 is entire first bolt 1 of non-through.
Wherein, the hollow structure of second bolt 6 and first pyramidal structure 512 and second pyramidal structure
613 cross section is circle.As shown in Fig. 3-Fig. 8, circle is processed into the cross section of above structure by the present embodiment, does not interfere
The normal screw-in of fastening nut 5 and the second bolt 6.
As shown in Figure 7 and Figure 8, the cross-sectional shape on the head 611 of second bolt is regular polygon.Specifically, the
The cross-sectional shape on the head 611 of two bolts can for quadrangle, hexagonal or other carry out tightening operation convenient for the tools such as spanner
Shape.
Wherein, crack 513 is radially equipped in first pyramidal structure 512, playing the first pyramidal structure 512 can fit
Spend the effect of deformation.Preferably, 513, crack number is multiple.Specifically, according to actual needs, such crack 513 to
Less it is two, and forms any split form for being more than or equal to binary fission.Preferably, as shown in Figure 5 and Figure 6, crack number is
Four, the first pyramidal structure 512 constitutes the split form of quadripartion.
As shown in Figure 1 and Figure 7, the anti-loose structure 612 of second bolt 6 is by the first taper knot of the fastening nut 5
Structure 512 covers completely, can protect fastening nut 5 and the first bolt 1 port will not intake and by external force destruction.
As shown in fig. 7, the anti-loose structure 612 of the head 611 of second bolt and second bolt 6 is dismountable
Separate structure.Specifically, the anti-loose structure 612 of the head 611 of the second bolt and second bolt 6 can use buckle etc. even
The mode of connecing is fixed and dismantles.
A kind of anti-loose connection bolt assembly provided by the utility model, is revolved respectively using the bidirectional helical on the first bolt
Enter fastening nut and the second bolt, realizes bidirectional helical fastening, and connect using the pyramidal structure of fastening nut and the second bolt
Touching, when the second bolt screws, the fastening nut that opposing torque is not enough to have fastened originally is loosened, and is solved due to second
Bolt reversely screws in touch fastening nut after, the problem of causing fastening nut outward turning to loosen to fastening nut opposing torque,
And the anti-loose structure of the second bolt is hollow structure, and the outer cover of hollow structure can also protect the end of fastening nut and the first bolt
Mouth will not intake and by external force destruction.The anti-loose connection bolt assembly design of one kind provided by the utility model rationally, is tied
Structure is simple, and fastening performance is good, convenient for disassembly and assembly.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. a kind of anti-loose connection bolt assembly characterized by comprising the first bolt, fastening nut and the second bolt, it is described
It is equipped with the first screw thread on the outside of the screw rod of first bolt, and the inside screw of first bolt is equipped with the first screw hole, described first
Second screw thread reversed with first screw thread, the screw thread phase of first screw thread and the fastening nut are equipped on the inside of screw hole
Match, the first end of the fastening nut has the first pyramidal structure axially protruded, and first pyramidal structure is along axial direction
Outwardly extending direction gradually tapers up, and the screw rod of second bolt is equipped with third screw thread, and the third screw thread and described the
Two screw threads match, the head of second bolt axially inward direction one end be equipped with anti-loose structure, the anti-loose structure
For hollow structure, and the end edge of the hollow structure is the second pyramidal structure, second pyramidal structure and described first
Pyramidal structure matches.
2. anti-loose connection bolt assembly as described in claim 1, which is characterized in that the second end of the fastening nut is flat
Straight structure.
3. anti-loose connection bolt assembly as claimed in claim 2, which is characterized in that further include the first gasket and the second pad
Piece, first gasket and second gasket be set to first bolt head and the fastening nut second end it
Between.
4. anti-loose connection bolt assembly as described in claim 1, which is characterized in that the depth of first screw hole be through
Entire first bolt.
5. anti-loose connection bolt assembly as described in claim 1, which is characterized in that the hollow structure of second bolt with
And the cross section of first pyramidal structure and second pyramidal structure is circle.
6. anti-loose connection bolt assembly as described in claim 1, which is characterized in that second bolt be interior angle screw or
Exterior angle screw, and the cross-sectional shape on the head of second bolt is regular polygon.
7. anti-loose connection bolt assembly as described in claim 1, which is characterized in that in first pyramidal structure radially
Equipped with crack.
8. anti-loose connection bolt assembly as claimed in claim 7, which is characterized in that the number in the crack is multiple.
9. anti-loose connection bolt assembly as described in claim 1, which is characterized in that the anti-loose structure of second bolt will
First pyramidal structure of the fastening nut covers completely.
10. the anti-loose connection bolt assembly as described in any one of claim 1-9, which is characterized in that second spiral shell
The anti-loose structure of the head of bolt and second bolt is dismountable separate structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821321511.3U CN208778455U (en) | 2018-08-15 | 2018-08-15 | A kind of anti-loose connection bolt assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821321511.3U CN208778455U (en) | 2018-08-15 | 2018-08-15 | A kind of anti-loose connection bolt assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208778455U true CN208778455U (en) | 2019-04-23 |
Family
ID=66157104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821321511.3U Active CN208778455U (en) | 2018-08-15 | 2018-08-15 | A kind of anti-loose connection bolt assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208778455U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757706A (en) * | 2018-08-15 | 2018-11-06 | 吴雁南 | A kind of anti-loose connection bolt assembly |
| CN111536131A (en) * | 2020-05-12 | 2020-08-14 | 三一重机有限公司 | Bolt locking structure |
| CN113931918A (en) * | 2020-07-13 | 2022-01-14 | 何天麟 | Taper needle type anti-loose nut |
-
2018
- 2018-08-15 CN CN201821321511.3U patent/CN208778455U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757706A (en) * | 2018-08-15 | 2018-11-06 | 吴雁南 | A kind of anti-loose connection bolt assembly |
| CN111536131A (en) * | 2020-05-12 | 2020-08-14 | 三一重机有限公司 | Bolt locking structure |
| CN113931918A (en) * | 2020-07-13 | 2022-01-14 | 何天麟 | Taper needle type anti-loose nut |
| CN113931918B (en) * | 2020-07-13 | 2023-03-14 | 何天麟 | Taper needle type anti-loose nut |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108757706A (en) | A kind of anti-loose connection bolt assembly | |
| CN208778454U (en) | A kind of anti-loose fastener of compound thread | |
| CN208778455U (en) | A kind of anti-loose connection bolt assembly | |
| CN211398229U (en) | Positive and negative rotation interlocking anti-loosening threaded connection assembly suitable for strong vibration large load | |
| CN208778453U (en) | A kind of anti-loose fastening assembly | |
| CN110645256A (en) | Positive and negative rotation interlocking anti-loosening threaded connection assembly suitable for strong vibration large load | |
| CN206364283U (en) | One kind threaded connection electric connector self-locking component | |
| CN201763767U (en) | Lock nut | |
| CN204716711U (en) | One can repeat the locking wing attachment structure of dismounting | |
| CN105545921B (en) | A kind of coaxial bolts group of packing ring stop | |
| CN208997142U (en) | A kind of screw thread machinery anti-loosing connecting structure | |
| CN201221545Y (en) | Double-cap anti-loose bolt | |
| CN202768602U (en) | Double-thread bolt | |
| CN204003910U (en) | A kind of checknut fastening structure | |
| CN207364078U (en) | A kind of anti-loosening bolt assembly easily assembled | |
| CN206221474U (en) | The locking combination nut of prefastening | |
| CN203051378U (en) | Anti-loosening preloaded bolt | |
| CN210087795U (en) | High-strength bolt | |
| CN204082861U (en) | A kind of high ferro contact net to be interlocked locking securing means with special-shaped sour jujube pad | |
| CN207569022U (en) | A kind of never becoming loose bolt | |
| CN208364581U (en) | A kind of check bolt and screw connector | |
| CN207879827U (en) | A kind of spine dentition formula floor clip | |
| CN206257148U (en) | Eccentric lever type stop nut | |
| CN207261422U (en) | A kind of plug screw with auto-lock function | |
| CN207131703U (en) | A kind of fastening connection piece for maintaining to limit elasticity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230706 Address after: Room 559, 5th Floor, Building A, Building 1, Yard 2, Yongcheng North Road, Haidian District, Beijing, 100094 Patentee after: Beijing Anda Sichuang Management Consulting Co.,Ltd. Address before: Room 601, Building 919, Zhongguancun, Haidian District, Beijing, 100190 Patentee before: Wu Yannan |
|
| TR01 | Transfer of patent right |