CN213145055U - Anti-drop bolt - Google Patents
Anti-drop bolt Download PDFInfo
- Publication number
- CN213145055U CN213145055U CN202022026747.8U CN202022026747U CN213145055U CN 213145055 U CN213145055 U CN 213145055U CN 202022026747 U CN202022026747 U CN 202022026747U CN 213145055 U CN213145055 U CN 213145055U
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- China
- Prior art keywords
- screw rod
- nut
- rod
- installation cavity
- connecting rod
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Abstract
The utility model relates to the technical field of bolts, in particular to an anti-falling bolt, which comprises a screw rod, wherein the end part of the screw rod is in threaded connection with a nut, the inside of the end part of the screw rod is provided with an installation cavity, one side of the installation cavity, which is close to the nut, is rotated to be provided with a rotating rod, the end part of the rotating rod is fixedly provided with a connecting rod, the end part of the connecting rod, which is far away from the nut, is penetrated and extended to the outside of the screw rod, the end part of the connecting rod, which is extended to the outside of the screw rod, is fixedly provided with a rotating handle, the inside of the screw rod is provided with through holes at both sides of the installation cavity, the through holes are movably penetrated and provided with anti-falling blocks, the inner end parts of the anti-falling blocks are extended into the, is worthy of popularization.
Description
Technical Field
The utility model relates to a bolt technical field especially relates to an anti-drop bolt.
Background
The bolt is used for installing and fixing workpieces between machines, is widely applied, and is connected in a threaded connection mode of the screw and the nut when being installed, so that the screw and the nut have the hidden trouble of falling off in the use process, the falling off of the screw and the nut directly affects the performance of the machines, and the safety is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the prior art has the hidden trouble of breaking away from and providing an anti-drop bolt.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an anti-drop bolt, includes the screw rod, screw rod tip threaded connection has the nut, the installation cavity has been seted up to screw rod tip inside, the installation cavity is inside to be close to one side of nut is rotated and is equipped with the dwang, the connecting rod tip fixed mounting has the connecting rod, the connecting rod is kept away from the tip of nut runs through and extends to the screw rod outside, the connecting rod extends to the tip fixed mounting in the screw rod outside has the turning handle, the screw rod is inside and is located the through-hole has all been seted up to the installation cavity both sides, the through-hole internalization runs through and is equipped with the anticreep piece, the inner end of anticreep piece extends to in the installation cavity, the anticreep piece extends to the inboard tip fixed mounting of installation cavity has linkage piece, two fixedly connected with spring between.
Preferably, a chamfer is formed on one side of the end part, far away from the anti-falling block, of the rotating disc, the chamfer is close to one side of the nut, the linkage block is of a circular truncated cone structure, the radius of the surface, close to one side of the nut, of the linkage block is larger than that of the surface, close to the other side of the nut, of the linkage block, and the inclination of the outer side of the linkage block is the same as that of the chamfer of the rotating.
Preferably, a limiting plate is fixedly mounted between the rotating rod and the connecting rod, the limiting plate is located in the mounting cavity, and the radius of the limiting plate is larger than that of the rotating rod and that of the connecting rod.
Preferably, a fixed block is fixedly mounted on the outer side of the rotating rod and located below the spring.
The utility model provides an anti-drop bolt, beneficial effect lies in: this bolt is in the installation, the nut cooperatees the back with the screw rod, can drive the connecting rod through rotatory rotation handle and rotate, the connecting rod rotates and to drive the dwang and rotate, the dwang rotates and to drive the rolling disc and rotates, the rolling disc upwards moves, the rolling disc can drive the outside removal of linkage piece, thereby the linkage piece can take the anticreep piece to move to the outside, the spring is in by tensile state, at this moment, the tip of anticreep piece extends to the through-hole outside, can restrict the screw, can prevent that nut and screw rod from breaking away from anti-drop effectually.
Drawings
Fig. 1 is a schematic structural view of an anti-drop bolt provided by the present invention;
fig. 2 is a schematic cross-sectional view of a-a in fig. 1 of an anti-drop bolt according to the present invention;
fig. 3 is an enlarged schematic structural diagram of a B in fig. 1 of an anti-drop bolt according to the present invention.
In the figure: screw rod 1, installation cavity 2, through-hole 3, linkage piece 4, anticreep piece 5, dwang 6, rolling disc 7, spring 8, connecting rod 9, turning handle 10, limiting plate 11, fixed block 12, nut 13.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example 1
Referring to fig. 1-3, an anti-drop bolt, including screw rod 1, screw rod 1 tip threaded connection has nut 13, installation cavity 2 has been seted up to screw rod 1 tip inside, the inside one side that is close to nut 13 of installation cavity 2 rotates and is equipped with dwang 6, dwang 6 tip fixed mounting has connecting rod 9, the tip that nut 13 was kept away from to connecting rod 9 runs through and extends to the screw rod 1 outside, the tip fixed mounting that connecting rod 9 extended to the screw rod 1 outside has rotation handle 10, rotatory rotation handle 10, rotation handle 10 can drive connecting rod 9 and rotate, connecting rod 9 rotates and can drive dwang 6 and rotate.
Through-hole 3 has all been seted up to 1 inside and lie in 2 both sides of installation cavity of screw rod, the activity runs through and is equipped with anticreep piece 5 in the through-hole 3, tip extension in the anticreep piece 5 extends to installation cavity 1, the tip fixed mounting that anticreep piece 5 extended to 1 inboard of installation cavity has linkage block 4, fixedly connected with spring 8 between two linkage blocks 4, linkage block 4 can remove in installation cavity 1, anticreep piece 5 can remove in through-hole 3, when spring 8 is not atress, anticreep piece 5 is located 3 inboards of through-hole, at this moment, anticreep piece 5 hides in through-hole 3.
The outer side of the rotating rod 6 is in threaded connection with a rotating disc 7, one side, far away from the anti-falling block 5, of the end portion of the rotating disc 7 is provided with a chamfer, the chamfer is close to one side of the nut 13, the linkage block 4 is of a circular truncated cone structure, the radius of the surface, close to one side of the nut 13, of the linkage block is larger than that of the surface, close to the other side of the nut, of the linkage block, and the inclination of the outer.
Dwang 6 rotates and can drive rolling disc 7 and rotate, 7 pivoted while still can reciprocate of rolling disc, when 7 upward movements of rolling disc, rolling disc 7 can drive linkage block 4 and outwards remove, thereby linkage block 4 can take anticreep piece 5 to outwards remove, spring 8 is in by tensile state, and at this moment, the tip of anticreep piece 5 extends to the 3 outsides of through-hole, can restrict nut 13, prevents that nut 13 from breaking away from with screw rod 1.
Example 2
Referring to fig. 1-3, as another preferred embodiment of the present invention, on the basis of embodiment 1, a fixed block 12 is fixedly installed outside the rotating rod 6, the fixed block 12 is located below the spring 8, and the fixed block 12 limits the movement of the rotating disc 7, so that when the rotating disc 7 moves to the side close to the spring 8 at each time, the fixed block 12 blocks the movement, thereby having a good limiting effect.
Example 3
Referring to fig. 1 and 3, as the utility model discloses a another preferred embodiment, on embodiment 1 or embodiment 2's basis, fixed mounting has limiting plate 11 between dwang 6 and the connecting rod 9, and limiting plate 11 is located installation cavity 2, and limiting plate 11's radius is greater than the radius of dwang 6 and connecting rod 9, and limiting plate 11 restricts connecting rod 9, prevents that connecting rod 9 from droing, even if break away from mutually between 6 lower extremes of dwang and installation cavity 2, under limiting plate 11's restriction, connecting rod 9 and dwang 6 also can normal use.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (4)
1. The anti-falling bolt comprises a screw rod (1), wherein the end part of the screw rod (1) is in threaded connection with a nut (13), and is characterized in that an installation cavity (2) is formed inside the end part of the screw rod (1), one side, close to the nut (13), of the installation cavity (2) is rotated to be provided with a rotating rod (6), the end part of the rotating rod (6) is fixedly provided with a connecting rod (9), the end part, far away from the nut (13), of the connecting rod (9) penetrates through and extends to the outer side of the screw rod (1), the end part, extending to the outer side of the screw rod (1), of the connecting rod (9) is fixedly provided with a rotating handle (10), through holes (3) are formed in the two sides of the installation cavity (2) and are formed inside the screw rod (1), anti-falling blocks (5) are arranged in the through holes (3) in a movable, anticreep piece (5) extend to the tip fixed mounting of installation cavity (2) inboard has linkage piece (4), two fixedly connected with spring (8) between linkage piece (4), dwang (6) outside threaded connection has rolling disc (7).
2. An anti-drop bolt according to claim 1, characterized in that the side of the end of the rotating disc (7) far from the anti-drop block (5) is provided with a chamfer near one side of the nut (13), the linkage block (4) is a truncated cone structure, the radius of the surface near one side of the nut (13) is larger than that of the surface near the other side, and the inclination of the outer side of the linkage block (4) and the chamfer of the rotating disc (7) is the same.
3. An anti-drop bolt according to claim 1, characterized in that a limiting plate (11) is fixedly installed between the rotating rod (6) and the connecting rod (9), the limiting plate (11) is located in the installation cavity (2), and the radius of the limiting plate (11) is larger than the radius of the rotating rod (6) and the connecting rod (9).
4. The anti-drop bolt of claim 1, characterized in that a fixed block (12) is fixedly mounted on the outer side of the rotating rod (6), and the fixed block (12) is located below the spring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022026747.8U CN213145055U (en) | 2020-09-16 | 2020-09-16 | Anti-drop bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022026747.8U CN213145055U (en) | 2020-09-16 | 2020-09-16 | Anti-drop bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213145055U true CN213145055U (en) | 2021-05-07 |
Family
ID=75718138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022026747.8U Active CN213145055U (en) | 2020-09-16 | 2020-09-16 | Anti-drop bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213145055U (en) |
-
2020
- 2020-09-16 CN CN202022026747.8U patent/CN213145055U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |