CN208364581U - A kind of check bolt and screw connector - Google Patents
A kind of check bolt and screw connector Download PDFInfo
- Publication number
- CN208364581U CN208364581U CN201821044981.XU CN201821044981U CN208364581U CN 208364581 U CN208364581 U CN 208364581U CN 201821044981 U CN201821044981 U CN 201821044981U CN 208364581 U CN208364581 U CN 208364581U
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- Prior art keywords
- helix
- return
- bolt
- screw
- nut
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- 244000098674 Pinus cembroides Species 0.000 claims abstract description 3
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- 235000008591 Pinus cembroides var edulis Nutrition 0.000 claims abstract description 3
- 235000015593 Pinus monophylla Nutrition 0.000 claims abstract description 3
- 235000015594 Pinus parryana Nutrition 0.000 claims abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 238000005457 optimization Methods 0.000 description 1
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Abstract
The utility model discloses a kind of check bolt and screw connectors.It solves the problems, such as existing bolts and nuts there are locking components that various, assembly is inconvenient.It include a bolt and one with the nut of bolt thread cooperation, bolt includes that a screw head and a screw rod, feature are: several non-return slots are successively offered along hand of helix on side of the externally threaded lug boss towards screw head of screw rod；At least one non-return piece is equipped with along hand of helix on the lug boss of the internal screw thread of nut；Non-return piece turns with non-return slot cooperation limitation nut pine.The utility model structure is simple, easy to assembly, and anti-loosening property is good.
Description
Technical field
The utility model relates to the bolt or nut of the work joint surface locking with special shape, especially a kind of locking spiral shells
Bolt and screw connector.
Background technique
It is known that the cooperation of bolts and nuts has many advantages, such as that structure is simple, connection is reliable, it is a kind of extensive by people
The connection type used.Currently, being to rub to realize locking functions by thread between conventional stud and nut, in varying load
Or under bump and oscillating load, the threaded connection between bolts and nuts is easily reversely rotated, and connection is caused to loosen.
Used to prevent screw thread from loosening and bolt being made to keep pretightning force, in industry install additional double nut, spring washer, nut fluting with
All multimodes such as cooperation, stop washer are sold, components are more, assembly is inconvenient.
Summary of the invention
That there are locking components in order to overcome the shortcomings of existing bolts and nuts is various, assembly is inconvenient, and the utility model mentions
Check bolt and screw connector simple for a kind of structure, anti-loosening property is good, easy to assembly.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of check bolt and screw connector,
It include a bolt and one with bolt thread cooperation nut, the bolt include a screw head and a screw rod, it is characterised in that:
Several non-return slots are successively offered along hand of helix on side of the externally threaded lug boss towards screw head of the screw rod；
At least one non-return piece is equipped with along hand of helix on the lug boss of the internal screw thread of the nut；Described non-return piece with it is non-return
Slot cooperation limitation nut pine turns.
The non-return slot is wedge shaped comprising a motion-stopping surface and a sliding surface, the motion-stopping surface perpendicular to helix,
The sliding surface intersects with helix；The angle α of the motion-stopping surface and sliding surface is 75 °~80 °.
Described non-return piece is wedge shaped comprising a top pressure face and a guide surface, the top pressure face perpendicular to helix,
The guide surface intersects with helix；The angle β of the top pressure face and guide surface is 75 °~80 °.
The motion-stopping surface of the non-return slot and the angle α of sliding surface are 76 °；Non-return piece of the top pressure face and guide surface
Angle β be 79 °.
The utility model successively opens up several non-return slots on the externally threaded lug boss of screw rod along hand of helix, in spiral shell
It is equipped at least one non-return piece along hand of helix on the lug boss of female internal screw thread, non-return piece cooperates limitation nut with non-return slot
Pine turns, and structure is simple, and anti-loosening property is good.Compared with existing locking mode, the utility model number of parts is few and assembly side
Just.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of bolt in the utility model；
Fig. 2 is the partial enlarged view in Fig. 1 at A；
Fig. 3 is a kind of structural schematic diagram of nut in the utility model；
Fig. 4 is the partial enlarged view in Fig. 3 at B；
Fig. 5 is a kind of cooperation schematic diagram of the utility model bolts and nuts.
Marked in the figure: 1. bolts, 101. screw heads, 102. screw rods, 103. external screw threads, 104. non-return slots, 1041. motion-stopping surfaces,
1042. sliding surfaces, 2. nuts, 201. through-holes, 202. internal screw threads, 203. non-return pieces, 2031. top pressure faces, 2032. guide surfaces.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
As shown in Figure 1, Figure 3, a kind of check bolt and screw connector comprising a bolt 1 and a nut 2.
In Fig. 1, bolt 1 includes a screw head 101 and a screw rod 102, and 101 coaxial line of screw head is fixedly connected on screw rod 102
One end on, on outer peripheral surface of the screw rod 102 far from 101 one end of screw head be equipped with external screw thread 103.
In Fig. 3, internal screw thread 202 is equipped on the through-hole 201 of nut 2, nut 2 is through the outer of its internal screw thread 202 and bolt 1
The cooperation of screw thread 103 screws.
In Fig. 2, several non-return slots 104 are equipped on the external screw thread 103 of screw rod 102, the non-return slot 104 is along helix side
To being successively provided with the lug boss of external screw thread 103 towards the side of screw head 101.As shown in Fig. 2, non-return slot 104 is along helix side
To continuous setting, in the present embodiment, each non-return slot 104 is wedge shaped comprising a motion-stopping surface 1041 and a sliding surface
1042, wherein motion-stopping surface 1041 intersects perpendicular to helix, sliding surface 1042 with helix, and sliding surface 1042 is along nut 2
Relative to the rotation direction setting that bolt 1 pre-tightens, the angle α of the motion-stopping surface 1041 and sliding surface 1042 is advisable at 75 °~80 °.
It should be further noted that the quantity of non-return slot 104 is according to actual needs setting, it is in the present embodiment, non-return
Slot 104 is continuously arranged along the overall length of external screw thread 103.
In Fig. 3, Fig. 4, Fig. 5, at least one non-return piece 203 is equipped on the lug boss of the internal screw thread 202 of nut 2, in spiral shell
When mother 2 screws with bolt 1, in the non-return piece 203 non-return slot 104 of insertion.
For convenient for cooperating with non-return slot 104, as shown in figure 4, each non-return piece 203 wedge shaped comprising a top pressure face
2031 and a guide surface 2032, wherein top pressure face 2031 is arranged perpendicular to helix, and guide surface 2032 intersects with helix, and
And the rotation direction setting that guide surface 2032 is pre-tightened along nut 2 relative to bolt 1, the angle β of the top pressure face 2031 and guide surface 2032
It is advisable at 75 °~80 °.
It should be further noted that the quantity setting of non-return slot 104 can be corresponded to for non-return piece 203 along hand of helix,
In view of production cost and service efficiency, non-return piece 203 can also be arranged along hand of helix interval.In use, stopping because several
Inverse block 203 needs synchronization to cooperate with corresponding non-return slot 104, and non-return piece 203 of quantity is set as can be by the quantity of non-return slot 104
Divide exactly.
By test of many times the study found that when non-return slot 104 motion-stopping surface 1041 and sliding surface 1042 angle α be 76 °,
When the angle β of top pressure face 2031 and guide surface 2032 is 79 °, the bolt 1 of the utility model and nut 2 screw performance, locking
Performance obtains largest optimization.
The utility model is successively to open up several stop along hand of helix on the lug boss of the external screw thread 103 of screw rod 102
Inverse slot 104, is equipped at least one non-return piece 203, non-return piece 203 along hand of helix on the lug boss of the internal screw thread 202 of nut 2
The pine of limitation nut 2 is cooperated to turn to realize the locking of bolt 1 and nut 2 with non-return slot 104, number of parts is few, structure is simple, fills
With convenient, anti-loosening property is good.
Claims (4)
1. a kind of check bolt and screw connector comprising the nut of a bolt and one and bolt thread cooperation, the spiral shell
Bolt includes a screw head and a screw rod, it is characterised in that: on side of the externally threaded lug boss towards screw head of the screw rod
Several non-return slots are successively offered along hand of helix；It is set on the lug boss of the internal screw thread of the nut along hand of helix
There is at least one non-return piece；Described non-return piece turns with non-return slot cooperation limitation nut pine.
2. a kind of check bolt according to claim 1 and screw connector, it is characterised in that: the non-return slot is in wedge
Shape a comprising motion-stopping surface and a sliding surface, the motion-stopping surface is perpendicular to helix, the sliding surface and helix phase
It hands over；The angle α of the motion-stopping surface and sliding surface is 75 °~80 °.
3. a kind of check bolt according to claim 2 and screw connector, it is characterised in that: described non-return piece is in wedge
Shape a comprising top pressure face and a guide surface, the top pressure face is perpendicular to helix, the guide surface and helix phase
It hands over；The angle β of the top pressure face and guide surface is 75 °~80 °.
4. a kind of check bolt according to claim 3 and screw connector, it is characterised in that: the non-return slot stops
The angle α of dynamic face and sliding surface is 76 °；The angle β of non-return piece of the top pressure face and guide surface is 79 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821044981.XU CN208364581U (en) | 2018-07-03 | 2018-07-03 | A kind of check bolt and screw connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821044981.XU CN208364581U (en) | 2018-07-03 | 2018-07-03 | A kind of check bolt and screw connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208364581U true CN208364581U (en) | 2019-01-11 |
Family
ID=64924481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821044981.XU Expired - Fee Related CN208364581U (en) | 2018-07-03 | 2018-07-03 | A kind of check bolt and screw connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208364581U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110034457A (en) * | 2019-05-06 | 2019-07-19 | 深圳市雄韬电源科技股份有限公司 | Threaded anti-loosing structure, aviation socket, aviation plug and aviation inserting structure |
| CN111120497A (en) * | 2020-01-13 | 2020-05-08 | 广东轻工职业技术学院 | Permanent anti-loose thread pair with barb type fine teeth on tooth type helical surface and manufacturing device |
-
2018
- 2018-07-03 CN CN201821044981.XU patent/CN208364581U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110034457A (en) * | 2019-05-06 | 2019-07-19 | 深圳市雄韬电源科技股份有限公司 | Threaded anti-loosing structure, aviation socket, aviation plug and aviation inserting structure |
| CN111120497A (en) * | 2020-01-13 | 2020-05-08 | 广东轻工职业技术学院 | Permanent anti-loose thread pair with barb type fine teeth on tooth type helical surface and manufacturing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |