CN2599304Y - Anti-loosing fastening structure for expanding mouth bolt - Google Patents
Anti-loosing fastening structure for expanding mouth bolt Download PDFInfo
- Publication number
- CN2599304Y CN2599304Y CNU032367678U CN03236767U CN2599304Y CN 2599304 Y CN2599304 Y CN 2599304Y CN U032367678 U CNU032367678 U CN U032367678U CN 03236767 U CN03236767 U CN 03236767U CN 2599304 Y CN2599304 Y CN 2599304Y
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- cone shape
- shape hole
- screw rod
- nut
- hole
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- Expired - Fee Related
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Abstract
A bulging-type bolt anti-loosening structure comprises a bulging-type bolt or a dual-head bulging screw rod, a nut and a cone top thread; the nut is arranged on the bulging-type bolt, the cone top thread is arranged on a thread hole inside the cone hole at the end of the screw rod with a screw column body arranged on the top end of the cone top thread, the cone column body arranged at the tail end of the top thread expands the end head of the bulging screw rod to tighten the nut so as to prevent the loosening or loss of the nut, thereby guarantee the safety and reliability of the facility connection parts.
Description
Technical field
A kind of expanding mouth type screw retention fastening structure is the fasten structural elements together that parts connect in the machinery, and the parts that are specially adapted under the vibration environment connect, and belong to the chek bolt technical field.
Background technique
Bolt or double threaded screw fastening piece commonly used, though can play good fastening effect, but when in the environment that is vibrated for a long time, using, nut is produced to be become flexible, comes off and lose, lead especially for use in outdoor electric equipment connects, because the loosening poor wire connection that causes of nut, cause equipment failure and influence normal use.
Summary of the invention
The utility model is a kind ofly can prevent the loosening bolton member lost can avoided again, with the safety reliability that guarantees that the facility parts connect.
The utility model is made of expand mouthful bolt or expand a mouthful double threaded screw, nut and taper jackscrew, the nut spinning is on mouthful screw rod that expands, the taper jackscrew is contained on the tapped hole in the screw end head cone shape hole with the spiro column spiral shell on its top, the conical cylinder of jackscrew tail end is with the screw end head distending, the jam-packed nut is with anti-loosening.Vertically make cone shape hole in the termination of bolt shank or the two ends of double threaded screw, the top of cone shape hole is shaped on an aperture and equates tapped hole with the cone shape hole outside diameter circle, along several break slots that vertically have certain depth of taper hole wall.One end of taper jackscrew is made spiro column, tapped hole in the cross-sectional diameter of cylinder and cylinder length and the cone shape hole is complementary, the screw thread screw thread is meshed, the other end is made conical cylinder, conical cylinder surface gradient is consistent with draft in the cone shape hole, its tail end face is shaped on the groove of "-" font or "+" font, so that insert the instrument of turn-knob jackscrew.
The utility model makes the screw end head distending be toroidal with the cone shape hole of taper jackscrew screw-in screw end head, with the nut swelling on the screw rod, has prevented the loosening of nut.In the time will taking off nut, must screw out jackscrew earlier with special tool, can take off nut, this has been avoided losing of bolt fastener again, guarantees the safety that connected element is used.
Description of drawings
Fig. 1 is expanding mouth type bolt fastening structure assembling schematic representation.
Fig. 2 is an expanding mouth type bolt longitudinal section schematic representation.
Fig. 3 looks schematic representation for the right side of Fig. 2.
Fig. 4 is an expanding mouth type double threaded screw longitudinal section schematic representation.
Fig. 5 is the schematic side view of Fig. 4.
Fig. 6 looks schematic representation for taper jackscrew master.
Fig. 7 looks schematic representation for the left side of Fig. 6.
Among the figure: the bloated mouthful screw rod of 1-; The 2-nut; 3-taper jackscrew; The 4-break slot; The 5-cone shape hole; The 6-tapped hole; The 7-spiro column; The 8-conical cylinder; The 9-groove.
Specific embodiments
As shown in Figure 1, the utility model is made of mouthful screw rod 1 that expands, nut 2, taper jackscrew 3, nut 2 spinnings are on mouthful screw rod 1 that expands, taper jackscrew 3 is packed in the cone shape hole 5 of screw end head, with the spiro column 7 at its top and the tapped hole bolt in the cone shape hole 5, with the gap distending on the screw rod 1 termination cone shape hole 5, jam-packed nut 2 is with anti-loosening by the conical cylinder 8 of its afterbody.
Shown in Fig. 2,3,4,5, cone shape hole 5 is vertically made in two ends center at bolt screw rod or double threaded screw, the top of cone shape hole 5 is shaped on the tapped hole 6 that the aperture equates with the cone shape hole outside diameter circle, along several break slots that vertically have certain depth of cone shape hole 5 perisporiums.
Shown in Fig. 6,7, one end of taper jackscrew 3 is made round spiro column 7, tapped hole 6 in the cross-section disc diameter of spiro column 7 and length and the screw rod cone shape hole 5 matches, the other end is made conical cylinder 8, the surperficial gradient of conical cylinder 8 is consistent with the interior draft of cone shape hole 5, and its tail end face is shaped on the groove of "-" font or "+" font.
Claims (3)
1, expanding mouth type screw retention fastening structure, constitute by mouthful screw rod that expands, nut, taper jackscrew, it is characterized in that: the nut spinning is on mouthful screw rod that expands, and the taper jackscrew is packed in the cone shape hole of screw end head, with the spiro column on its top and the tapped hole bolt in the cone shape hole.
2, expanding mouth type screw retention fastening structure according to claim 1, it is characterized in that: cone shape hole is made in the center, termination at screw rod, the cone shape hole top is shaped on the tapped hole that an aperture equates with the cone shape hole outside diameter circle, along several break slots that vertically have certain depth of cone shape hole perisporium.
3, expanding mouth type screw retention fastening structure according to claim 1, it is characterized in that: an end of taper jackscrew is made round spiro column, tapped hole in the cross-section disc diameter of spiro column and length and the screw rod cone shape hole matches, the other end is made conical cylinder, the performance gradient of conical cylinder is consistent with the interior draft of cone shape hole, is shaped on the groove of "-" word or "+" font on its tail end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032367678U CN2599304Y (en) | 2003-01-24 | 2003-01-24 | Anti-loosing fastening structure for expanding mouth bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032367678U CN2599304Y (en) | 2003-01-24 | 2003-01-24 | Anti-loosing fastening structure for expanding mouth bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2599304Y true CN2599304Y (en) | 2004-01-14 |
Family
ID=34166972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032367678U Expired - Fee Related CN2599304Y (en) | 2003-01-24 | 2003-01-24 | Anti-loosing fastening structure for expanding mouth bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2599304Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156435A (en) * | 2015-09-12 | 2015-12-16 | 冯仓武 | Pressurized double-spiral lock cylinder nut rod |
| CN107255114A (en) * | 2017-07-06 | 2017-10-17 | 江苏永昊高强度螺栓有限公司 | Prevent the bolt and nut component loosened |
| CN108361267A (en) * | 2018-05-04 | 2018-08-03 | 宁波洋丹尔母婴用品有限公司 | A kind of included clamping head stop nut |
| CN108644207A (en) * | 2018-06-26 | 2018-10-12 | 浙江长瑞精密零部件制造有限公司 | A kind of flexible Anti-off bolt of petrochemical industry |
| CN108775326A (en) * | 2018-06-26 | 2018-11-09 | 浙江长瑞精密零部件制造有限公司 | A kind of flexible check bolt of nuclear power |
| CN109958693A (en) * | 2019-03-25 | 2019-07-02 | 陈朋 | It is a kind of will not be from the screw column assembly of loose nut |
| CN111779751A (en) * | 2020-07-07 | 2020-10-16 | 河北北汽福田汽车部件有限公司 | Locking bolt structure that moves |
-
2003
- 2003-01-24 CN CNU032367678U patent/CN2599304Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156435A (en) * | 2015-09-12 | 2015-12-16 | 冯仓武 | Pressurized double-spiral lock cylinder nut rod |
| CN107255114A (en) * | 2017-07-06 | 2017-10-17 | 江苏永昊高强度螺栓有限公司 | Prevent the bolt and nut component loosened |
| CN108361267A (en) * | 2018-05-04 | 2018-08-03 | 宁波洋丹尔母婴用品有限公司 | A kind of included clamping head stop nut |
| CN108644207A (en) * | 2018-06-26 | 2018-10-12 | 浙江长瑞精密零部件制造有限公司 | A kind of flexible Anti-off bolt of petrochemical industry |
| CN108775326A (en) * | 2018-06-26 | 2018-11-09 | 浙江长瑞精密零部件制造有限公司 | A kind of flexible check bolt of nuclear power |
| CN109958693A (en) * | 2019-03-25 | 2019-07-02 | 陈朋 | It is a kind of will not be from the screw column assembly of loose nut |
| CN109958693B (en) * | 2019-03-25 | 2023-12-26 | 深圳市力达精工工业有限公司 | Screw column assembly capable of preventing nut from loosening |
| CN111779751A (en) * | 2020-07-07 | 2020-10-16 | 河北北汽福田汽车部件有限公司 | Locking bolt structure that moves |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |