CN203146546U - Double-locknut structure - Google Patents
Double-locknut structure Download PDFInfo
- Publication number
- CN203146546U CN203146546U CN 201320116850 CN201320116850U CN203146546U CN 203146546 U CN203146546 U CN 203146546U CN 201320116850 CN201320116850 CN 201320116850 CN 201320116850 U CN201320116850 U CN 201320116850U CN 203146546 U CN203146546 U CN 203146546U
- Authority
- CN
- China
- Prior art keywords
- nut
- center
- upper cap
- tapped hole
- cap nut
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a nut fastening structure, in particular to a double-locknut structure. The double-locknut structure comprises an upper nut and a lower nut, wherein thread holes are formed in the center of the upper nut and the center of the lower nut, a cone-shaped protruded block is arranged at the top of the lower nut, a thread hole is formed in the middle of the cone-shaped protruded block, and the center of the cone-shaped protruded block and the center of the thread hole of the cone-shaped protruded block are of an eccentric structure. A groove matched with the cone-shaped protruded block of the lower nut is formed in the bottom of the upper nut, a thread hole is formed in center of the groove in the bottom of the upper nut, the thread hole of the upper nut corresponds to the thread hole of the lower nut in position, and the center of the thread hole of the upper nut is the same as that of the groove in the bottom of the upper nut. According to the double-locknut structure, the upper nut can just press the widest end of the eccentric cone-shaped protruded block of the lower nut in a wedged mode after being screwed tightly, an effect of wedge knocking can be achieved without an additional wedge, and time and labor are saved.
Description
[technical field]
The utility model relates to the nut fastening structure, is specifically related to a kind of locking double nuts structure.
[background technique]
On building such as high-speed railway, bridge spanning the sea, iron tower, nuclear power facility, wind-powered electricity generation equipment or the equipment, all can come fastening each parts with screw thread usually, Fig. 1 is lock nut of the prior art.It is fastening to squeeze into chock between the nuts and bolt, and nut just can not become flexible basically.But real construction site wants whenever to tighten a screw and just throws chock possibility hardly into.
[summary of the invention]
In order to solve above-mentioned defective of the prior art, the utility model provides a kind of need not to add chock, the locking double nuts structure of wedging voluntarily.
For achieving the above object, design a kind of locking double nuts structure, comprise upper cap nut and lower nut, upper cap nut and lower nut center are equipped with tapped hole, described lower nut top is provided with a conical shaped projections, the conical shaped projections middle part is provided with tapped hole, the described conical shaped projections center of circle and the tapped hole center of circle are eccentric structure, described upper cap nut bottom is provided with a groove that matches with the lower nut conical shaped projections, described upper cap nut bottom groove center is provided with tapped hole, described upper cap nut tapped hole position is corresponding with lower nut tapped hole position, and the described upper cap nut tapped hole center of circle is identical with the upper cap nut bottom groove center of circle.
Described lower nut top conical shaped projections structural perimeter is provided with the gap with the upper cap nut bottom groove periphery place of matching.
The utility model is compared with prior art, nut is divided into has with respect to the lower nut of the eccentric conical shaped projections of thread center line with respect to the upper cap nut of thread center's line concentric grooves, upper cap nut can just can be closed the wideest end of the eccentric conical shaped projections of lower nut by dog wedge after screwing, need not to add chock and just can obtain and the same effect that drives a wedge into, time saving and energy saving.
[description of drawings]
Fig. 1 is the schematic cross-section of prior art voussoir tightening nut;
Fig. 2 is embodiment 1 schematic cross-section;
Fig. 3 is the top structure schematic representation of embodiment's 1 lower nut;
Fig. 4 is the polycrystalline substance schematic representation of embodiment's 1 upper cap nut;
Fig. 5 is that embodiment's 1 double nut is for the schematic representation of nut pressure;
1. voussoirs, 2. upper cap nuts, 3. lower nuts, 4. conical shaped projections, 5. grooves, 6. gaps among the figure.
[embodiment]
In order to make the purpose of this utility model, technological scheme and advantage clearer, by reference to the accompanying drawings the utility model is further elaborated.Manufacturing mechanism among the application all is the common equipment of related domain, should be appreciated that specific embodiment described herein only in order to explaining the utility model, and is not used in restriction the utility model.
Embodiment 1
The locking double nuts structure of present embodiment is made up of following two parts:
The double nuts structure of present embodiment comprises upper cap nut and lower nut, and upper cap nut and lower nut center are equipped with tapped hole,
As shown in Figure 3, the lower nut top is provided with a conical shaped projections, and as shown in Figure 2, conical shaped projections is up-small and down-big, and the conical shaped projections middle part is provided with tapped hole, and the described conical shaped projections center of circle and the tapped hole center of circle are eccentric structure,
As shown in Figure 4, described upper cap nut bottom is provided with a groove that matches with the lower nut conical shaped projections, described upper cap nut bottom groove center is provided with tapped hole, described upper cap nut tapped hole position is corresponding with lower nut tapped hole position, and the described upper cap nut tapped hole center of circle is identical with the upper cap nut bottom groove center of circle.
As Fig. 2, described lower nut top conical shaped projections structural perimeter is provided with the gap with the upper cap nut bottom groove periphery place of matching.
During use, earlier screw lower nut at threaded stem, precession again, screw upper cap nut, because the eccentric structure of lower nut, as shown in Figure 5, the wideer side of the conical shaped projections of lower nut is by the groove compressing concentric with tapped hole, one side and the screw thread place of lower nut are compressed, make the threaded stem P1 that is under pressure, and upper cap nut, since be subjected to lower nut the wideer side of conical shaped projections upper cap nut is had an outside thrust, drive upper cap nut opposite side since this thrust and screw thread place press, thereby make the threaded stem P2 that is under pressure reach the purpose of fastening screw.
Claims (2)
1. locking double nuts structure, comprise upper cap nut and lower nut, upper cap nut and lower nut center are equipped with tapped hole, it is characterized in that: described lower nut top is provided with a conical shaped projections, the conical shaped projections middle part is provided with tapped hole, the described conical shaped projections center of circle and the tapped hole center of circle are eccentric structure, described upper cap nut bottom is provided with a groove that matches with the lower nut conical shaped projections, described upper cap nut bottom groove center is provided with tapped hole, described upper cap nut tapped hole position is corresponding with lower nut tapped hole position, and the described upper cap nut tapped hole center of circle is identical with the upper cap nut bottom groove center of circle.
2. locking double nuts structure as claimed in claim 1 is characterized in that described lower nut top conical shaped projections structural perimeter is provided with the gap with the upper cap nut bottom groove periphery place of matching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320116850 CN203146546U (en) | 2013-03-14 | 2013-03-14 | Double-locknut structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320116850 CN203146546U (en) | 2013-03-14 | 2013-03-14 | Double-locknut structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146546U true CN203146546U (en) | 2013-08-21 |
Family
ID=48974072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320116850 Expired - Fee Related CN203146546U (en) | 2013-03-14 | 2013-03-14 | Double-locknut structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146546U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114436A (en) * | 2015-08-18 | 2015-12-02 | 孟周强 | Interlocked stop nut assembly |
| CN108916197A (en) * | 2018-08-15 | 2018-11-30 | 黄万强 | Anti-loosening bolt and nut lock solid structure |
| CN109764053A (en) * | 2019-03-22 | 2019-05-17 | 安徽理工大学 | A kind of stop nut |
| CN113417927A (en) * | 2017-05-29 | 2021-09-21 | 山下宝辉 | Nut and fastening method |
-
2013
- 2013-03-14 CN CN 201320116850 patent/CN203146546U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114436A (en) * | 2015-08-18 | 2015-12-02 | 孟周强 | Interlocked stop nut assembly |
| CN113417927A (en) * | 2017-05-29 | 2021-09-21 | 山下宝辉 | Nut and fastening method |
| CN113417927B (en) * | 2017-05-29 | 2023-06-09 | 山下宝辉 | Nut and method of fastening |
| CN108916197A (en) * | 2018-08-15 | 2018-11-30 | 黄万强 | Anti-loosening bolt and nut lock solid structure |
| CN109764053A (en) * | 2019-03-22 | 2019-05-17 | 安徽理工大学 | A kind of stop nut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20140314 |