CN204175772U - Bolt anti-drop device - Google Patents
Bolt anti-drop device Download PDFInfo
- Publication number
- CN204175772U CN204175772U CN201420643458.4U CN201420643458U CN204175772U CN 204175772 U CN204175772 U CN 204175772U CN 201420643458 U CN201420643458 U CN 201420643458U CN 204175772 U CN204175772 U CN 204175772U
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- Prior art keywords
- bolt
- protecting jacket
- drop device
- nut
- utility
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Abstract
The utility model discloses a kind of bolt anti-drop device; bolt-through connects the first main body and the second main body; the top of bolt is fixed by nut, and nut outer surfaces is provided with the first protecting jacket, is connected between the first protecting jacket be wherein disposed adjacent by the first junction button.The complex node bolt that bolt anti-drop device of the present utility model crosses for multiple rod member is applicable equally, can flexible arrangement, not by the impact of irregular alignment between bolt; Constructing operation is convenient, does not affect the construction of bolt in early stage, does not change the stressing conditions of bolt, make bolt secure for working life; Can not only prevent nut from coming off, coming off of bolt can also be prevented, realize duplicate protection, reduce potential safety hazard to greatest extent.
Description
Technical field
The utility model relates to a kind of Steel Structure Work fastening piece protective gear, particularly relates to a kind of bolt anti-drop device.
Background technique
One of the most general Placement that current engineering uses is exactly that bolt connects, compared to other Placement, there is self significant advantage: mounting or dismounting are convenient, be conducive to maintenance, pretightening force can be increased prevent from loosening, the change of joint material composition can not be caused.Just because of these advantages above-mentioned, bolt is connected and is generally used, but its shortcoming also displays simultaneously.In use easily there is fracture and loosening phenomenon in bolt, because bolt itself has certain quality, is positioned at the bolt of eminence once come off cause security threat by the vehicle of below and personnel.
Existing fewer about preventing the device of bolt falling, mainly contain steel wire guard and nuts protecting jacket.Steel wire guard protection simple structure; there is certain narrow limitation, compare the protection being applicable to simple node, such as post and column connected node bolt; be not suitable for bar-crossing, the node bolt protection of many components intersection, and steel wire guard well can not take into account the outward appearance of structure.Nuts protection then only can prevent nut from coming off, and tightening latch does not obtain anti-deprotection, and different pitch of bolts arranges inconvenience, needs overall customization, can not apply in a flexible way at the bolt of different Nodes.
Increasing steel structure comes into operation at present, and the bolt quantity come off every year is larger, and the potential safety hazard that bolt falling brings is badly in need of solving.
Model utility content
Main purpose of the present utility model is, overcomes the defect that existing bolt anti-drop device exists, and provides a kind of Novel bolt anti-drop device, easy construction, avoid coming off and cause potential safety hazard, thus be more suitable for practicality, and there is the value in industry.
The purpose of this utility model and solve its technical problem and realize by the following technical solutions.According to the bolt anti-drop device that the utility model proposes; bolt-through connects the first main body and the second main body; the top of bolt is fixed by nut, and nut outer surfaces is provided with the first protecting jacket, is connected between the first protecting jacket be wherein disposed adjacent by the first junction button.
Further, aforesaid bolt anti-drop device, the side of the first described protecting jacket is provided with draw-in groove, and described first junction button two ends are provided with snap close, by the connection fixedly realized between the first adjacent protecting jacket of snap close and draw-in groove.
Further, aforesaid bolt anti-drop device, the length of described first junction button is greater than the distance between two the first protecting jackets being disposed adjacent.
Further, aforesaid bolt anti-drop device, the bolt head outer surface at described bolt top is provided with the second protecting jacket, described in be connected by the second junction button between the second protecting jacket of being disposed adjacent.
Further, aforesaid bolt anti-drop device, the side of the second described protecting jacket is provided with draw-in groove, and described second junction button two ends are provided with snap close, by the connection fixedly realized between the second adjacent protecting jacket of snap close and draw-in groove.
Further, aforesaid bolt anti-drop device, the length of described second junction button is greater than the distance between two the second protecting jackets being disposed adjacent.
By technique scheme, bolt anti-drop device of the present utility model at least has following advantages:
The complex node bolt that bolt anti-drop device of the present utility model crosses for multiple rod member is applicable equally, can flexible arrangement, not by the impact of irregular alignment between bolt; Constructing operation is convenient, does not affect the construction of bolt in early stage, does not change the stressing conditions of bolt, make bolt secure for working life; Can not only prevent nut from coming off, coming off of bolt can also be prevented, realize duplicate protection, reduce potential safety hazard to greatest extent.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of specification, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present utility model.
Accompanying drawing explanation
Fig. 1 is the plan view of the utility model bolt anti-drop device;
Fig. 2 is the plan view of the utility model bolt anti-drop device;
Implication is marked: 1. the first protecting jacket, 2. the first junction button, 3. nut, 4. packing ring, 5. the first main body, 6. the second main body, 7. bolt head, 8. the second protecting jacket, 9. the second junction button, 10. draw-in groove, 11. snap closes in figure.
Embodiment
For further setting forth the utility model for the technological means reaching predetermined model utility object and take and effect, below in conjunction with accompanying drawing and preferred embodiment, embodiment of the present utility model is described in detail as follows.
Bolt anti-drop device structural representation of the present utility model as shown in Figure 1 and Figure 2, includes the first protecting jacket 1, first junction button 2, second protecting jacket 8, second junction button 9, draw-in groove 10 and snap close 11.
Wherein bolt-through connects the first main body 5 and the second main body 6, the top of bolt is fixed by nut 3, nut 3 outer surface is provided with the first protecting jacket 1, first protecting jacket 1 is circular, that there is certain flexible rubber protecting jacket, internal diameter is more smaller than nut 3 external diameter, height is a little more than nut 3 height, first protecting jacket 1 bends inwards and wraps nut 3, first protecting jacket 1 both sides are respectively provided with a roundlet annular slot 10, the two ends of the first junction button 2 are respectively arranged with snap close 11, snap close 11 is fixed with draw-in groove 10 respectively, snap close 11 has bayonet arrangement, can firmly be inserted in roundlet annular slot 10, and then realize the first protecting jacket 1 fixing of two adjacent nut 3 outer surfaces.Wherein the length of the first junction button 2 is slightly larger than the distance between two the first protecting jackets 1 be disposed adjacent, and ensures that when nut 3 does not loosen situation about dropping be the state do not stressed.
Bolt head 7 outer surface parcel at bolt top is provided with the second protecting jacket 8, second protecting jacket 8 is circular, there is certain flexible rubber protecting jacket, internal diameter is more smaller than bolt head 7 external diameter, height is a little more than the height of bolt head 7, second protecting jacket 8 bends inwards and wraps bolt head 7, respectively there is a roundlet annular slot 10 second protecting jacket 8 both sides, second junction button 9 two ends are respectively arranged with snap close 11, snap close 11 is fixed with draw-in groove 10 respectively, snap close 11 has bayonet arrangement, can firmly be inserted in roundlet annular slot 10, and then realize the second protecting jacket 8 fixing of two adjacent bolt head 7 outer surfaces.Wherein the length of the second junction button 9 is slightly larger than the distance between two the second protecting jackets 8 be disposed adjacent, and ensures that when bolt does not loosen and drops be the state do not stressed.
When concrete utilization; after bolt installation; first protecting jacket 1 is sleeved on outside nut 3; then be inserted in two adjacent the first protecting jacket 1 outer annular shape draw-in grooves 10 respectively with two snap close 11 of the first junction button 2; multiple nut 3 successively carries out; finally realize Nodes nut 3 to be connected successively, form the overall group of a nut.
After the whole installation of first protecting jacket 1; installation second protecting jacket 8 can be continued; second protecting jacket 8 is arranged on bolt head 7 outer surface; then be inserted in two adjacent the second protecting jacket 8 outer annular shape draw-in grooves 10 respectively with two snap close 11 of the second junction button 9; multiple bolt head 7 successively carries out; finally realize Nodes bolt shank to be connected successively, form the overall group of a bolt shank.
By installing the first protecting jacket 1 on nut 3; to be connected with the first junction button 2 between first protecting jacket 1 thus nut 3 forms overall group; rupture when wherein there being nut 3, loosen time; the nut 3 do not loosened will connect the nut 3 firmly come off; this nut 3 is made to be unlikely to, from high-altitude tenesmus, to jeopardize the pedestrian below structure and vehicle safety.
Form overall group by being set with at bolt head 7 outer surface between the second protecting jacket 8, second protecting jacket 8 by the second junction button 9, though have screw rod rupture, loosen, also can ensure screw rod be unlikely to high-altitude tenesmus, harm below pedestrian and traffic safety.
The first protecting jacket 1 outside nut and the second protecting jacket 8 acting in conjunction outside bolt, improve the Safety performance that bolt uses largely.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solutions of the utility model, according to any simple modification that technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (6)
1. a bolt anti-drop device; it is characterized in that: bolt-through connects the first main body (5) and the second main body (6); the top of bolt is fixed by nut (3); nut (3) outer surface is provided with the first protecting jacket (1), is connected by the first junction button (2) between the first protecting jacket (1) be wherein disposed adjacent.
2. bolt anti-drop device according to claim 1; it is characterized in that: the side of described the first protecting jacket (1) is provided with draw-in groove (10); described first junction button (2) two ends are provided with snap close (11), by the connection fixedly realized between adjacent the first protecting jacket (1) of snap close (11) and draw-in groove (10).
3. bolt anti-drop device according to claim 2, is characterized in that: the length of described first junction button (2) is greater than the distance between two the first protecting jackets (1) being disposed adjacent.
4. bolt anti-drop device according to claim 1; it is characterized in that: bolt head (7) outer surface at described bolt top is provided with the second protecting jacket (8), described in be connected by the second junction button (9) between the second protecting jacket (8) of being disposed adjacent.
5. bolt anti-drop device according to claim 4; it is characterized in that: the side of described the second protecting jacket (8) is provided with draw-in groove (10); described second junction button (9) two ends are provided with snap close (11), by the connection fixedly realized between adjacent the second protecting jacket (8) of snap close (11) and draw-in groove (10).
6. bolt anti-drop device according to claim 5, is characterized in that: the length of described second junction button (9) is greater than the distance between two the second protecting jackets (8) being disposed adjacent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420643458.4U CN204175772U (en) | 2014-10-31 | 2014-10-31 | Bolt anti-drop device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420643458.4U CN204175772U (en) | 2014-10-31 | 2014-10-31 | Bolt anti-drop device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204175772U true CN204175772U (en) | 2015-02-25 |
Family
ID=52564583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420643458.4U Active CN204175772U (en) | 2014-10-31 | 2014-10-31 | Bolt anti-drop device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204175772U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109462299A (en) * | 2018-11-02 | 2019-03-12 | 徐州惠博机电科技有限公司 | A kind of motor mounting bracket with built-in elastic regulating mechanism |
| CN109630526A (en) * | 2018-12-13 | 2019-04-16 | 广东省交通规划设计研究院股份有限公司 | Connection component, high-altitude retention mechanism and connection component assembly method |
| CN110762107A (en) * | 2019-11-29 | 2020-02-07 | 南京工业大学 | Complete technology for preventing bolt from falling and mounting and dismounting method |
-
2014
- 2014-10-31 CN CN201420643458.4U patent/CN204175772U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109462299A (en) * | 2018-11-02 | 2019-03-12 | 徐州惠博机电科技有限公司 | A kind of motor mounting bracket with built-in elastic regulating mechanism |
| CN109462299B (en) * | 2018-11-02 | 2021-08-10 | 徐州惠博机电科技有限公司 | Motor mounting bracket with built-in elastic adjusting mechanism for motor |
| CN109630526A (en) * | 2018-12-13 | 2019-04-16 | 广东省交通规划设计研究院股份有限公司 | Connection component, high-altitude retention mechanism and connection component assembly method |
| CN110762107A (en) * | 2019-11-29 | 2020-02-07 | 南京工业大学 | Complete technology for preventing bolt from falling and mounting and dismounting method |
| CN110762107B (en) * | 2019-11-29 | 2023-12-05 | 南京工业大学 | Complete device for preventing bolt from falling and mounting and dismounting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |