CN216842579U - Screw not easy to loosen - Google Patents
Screw not easy to loosen Download PDFInfo
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- CN216842579U CN216842579U CN202220292819.XU CN202220292819U CN216842579U CN 216842579 U CN216842579 U CN 216842579U CN 202220292819 U CN202220292819 U CN 202220292819U CN 216842579 U CN216842579 U CN 216842579U
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- screw
- stud
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- spring
- movable plate
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Abstract
The utility model discloses a screw which is not easy to loose in the screw field, comprising a stud, the upper surface of the stud is provided with a nut, the outer surface of the stud is provided with a spring seat, the bottom surface of the spring seat is provided with a fastening spring, when a tool is used for screwing the screw into wood, the positioning column is pushed to move downwards, thereby driving a movable plate to move downwards and enabling a compression spring to contract, when the movable plate moves downwards, the positioning column can be pulled to retract into the inside of a clamping hole through a movable frame, the normal screwing-in of the stud can not be influenced by the protrusion of the positioning column, after the screwing-in is completed, the movable plate can be pushed upwards by utilizing the elasticity provided by the compression spring, thereby the positioning column can be pushed out of the inside of the clamping hole, the external shape of the stud is changed, the reverse rotation of the stud due to vibration and shaking is prevented, and the screw is not easy to loose, the problem that the screw fastening effect is influenced due to the fact that the screw is easy to loosen when the screw vibrates and shakes is avoided.
Description
Technical Field
The utility model relates to a screw field specifically is a difficult not hard up screw.
Background
The screw is a tool for fastening machine parts of the device step by utilizing the physics and mathematical principles of the inclined plane circular rotation and the friction force of the object, the screw is a general term of the fastener, the daily oral words and the screw are indispensable industrial necessities in daily life, and the application range of the screw is very wide.
When the existing screw is used, the problem of looseness is easily caused due to the problems of vibration, shaking and the like, so that the fastening effect of the screw is poor, the structure of a fastened piece is unstable, the using effect of the screw is greatly reduced, and an object cannot be fixed more firmly.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a difficult not hard up screw to solve the problem of proposing among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a difficult not hard up screw, includes the double-screw bolt, the last surface mounting of double-screw bolt has the nut, the outer surface mounting of double-screw bolt has the spring holder, fastening spring is installed to the bottom surface of spring holder, the fly leaf has been placed to the inside of double-screw bolt, compression spring is installed to the inner diapire of double-screw bolt, two sets of joint holes have been seted up to the surface of double-screw bolt, the surface activity of fly leaf articulates there are two sets of adjustable shelves, every group the equal activity of inside of adjustable shelf articulates there is the reference column, every group the equal joint of reference column is in the inside in joint hole, movable through-hole, two have all been seted up on the bottom surface of nut and the top of double-screw bolt the common joint of movable through-hole has movable post, the bottom of movable post is connected with the last fixed surface of fly leaf.
As a further aspect of the present invention: the upper surface of the nut is provided with a rotating groove, and the outer surface of the stud is provided with a thread groove.
As a further aspect of the present invention: the outer surface of the movable column is provided with a reinforcing ring, and the bottom surface of the reinforcing ring is fixedly connected with the upper surface of the movable plate.
As a further aspect of the present invention: and a stabilizing ring is arranged below the reinforcing ring, the inner wall of the stabilizing ring is in contact with the outer surface of the compression spring, and the bottom surface of the stabilizing ring is fixedly connected with the inner bottom wall of the stud.
As a further aspect of the present invention: a base plate is arranged above the stabilizing ring, the bottom surface of the base plate is fixedly connected with the top end of the compression spring, and the upper surface of the base plate is in contact with the bottom surface of the movable plate.
As a further aspect of the present invention: the inner bottom wall in rotation groove has seted up the joint groove, the inside joint in joint groove has the bearing block, the bottom surface of bearing block and the top fixed connection of activity post.
As a further aspect of the present invention: and a gasket is arranged at the bottom end of the fastening spring, and the inner wall of the gasket is in contact with the outer surface of the stud.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses in, through being provided with reference column cooperation activity through-hole, when the use tool is in with bolt screw in timber, can promote the reference column downstream, thereby can drive the fly leaf downstream, and make the compression spring shrink, when the fly leaf downstream, can pull the inside in indentation joint hole of reference column indentation joint hole through the adjustable shelf, can not be because the outstanding normal screw in that influences the double-screw bolt of reference column, after the screw in is accomplished, the elasticity that utilizes compression spring to provide can upwards promote the fly leaf, thereby can release the downthehole portion of joint with the reference column, change double-screw bolt external shape, prevent because vibrations and rocking make double-screw bolt antiport, lead to the screw to take place to become flexible, avoid taking place vibrations and when rocking, the screw takes place not hard up easily, influence the problem of screw fastening effect.
2. The utility model discloses in, through spring holder cooperation fastening spring, when rotating the double-screw bolt and making the nut be close to the panel that needs the fastening, can force fastening spring to contract, after the completion of screwing, utilize the elasticity that fastening spring provided, can further increase the screw to the fastening degree of panel to can compensate vibrations and rock the gap of bringing, further prevented that the screw from taking place not hard up when using, play the increase screw result of use, make its effect of connecting and fixing to panel that can be more firm.
Drawings
Fig. 1 is a schematic structural view of a stud in the present invention;
FIG. 2 is a schematic structural view of a cross-sectional view of a stud in the present invention;
fig. 3 is a schematic structural view of a cross-sectional view of the nut of the present invention;
fig. 4 is a schematic structural diagram of a middle fastening spring according to the present invention.
In the figure: 1. a stud; 2. a gasket; 3. a nut; 4. a rotating groove; 5. a fastening spring; 6. a thread groove; 7. a movable through hole; 8. a reinforcing ring; 9. a positioning column; 10. a movable frame; 11. a compression spring; 12. a stabilizing ring; 13. a base plate; 14. a clamping hole; 15. a movable plate; 16. a movable post; 17. a clamping groove; 18. a pressure-bearing block; 19. a spring seat.
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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1-4, in the embodiment of the present invention, a screw not easy to loosen, including double-screw bolt 1, the last surface mounting of double-screw bolt 1 has nut 3, the surface mounting of double-screw bolt 1 has spring holder 19, fastening spring 5 is installed to the bottom surface of spring holder 19, fly leaf 15 has been placed to the inside of double-screw bolt 1, compression spring 11 is installed to the inner diapire of double-screw bolt 1, two sets of joint holes 14 have been seted up to the surface of double-screw bolt 1, the surface activity of fly leaf 15 articulates there are two sets of adjustable shelves 10, the equal activity of the inside of every adjustable shelf 10 articulates there is reference column 9, the equal joint of every reference column 9 is in the inside of joint hole 14, activity through-hole 7 has all been seted up on the bottom surface of nut 3 and the top of double-screw bolt 1, two common joints of activity through-hole 7 have activity post 16, the bottom of activity post 16 is connected with the last fixed surface of fly leaf 15.
Wherein, the upper surface of the nut 3 is provided with a rotating groove 4, the outer surface of the stud 1 is provided with a thread groove 6, the nut 3 can be conveniently rotated by using tools by people through the rotating groove 4, the screw can be conveniently screwed into wood, the screw tightness can be increased by using the thread groove 6, the connection between the screw and the wood is tighter and firmer, the outer surface of the movable column 16 is provided with a reinforcing ring 8, the bottom surface of the reinforcing ring 8 is fixedly connected with the upper surface of the movable plate 15, the connection between the movable column 16 and the movable plate 15 can be increased by using the reinforcing ring 8, the connection between the movable column 16 and the movable plate 15 is firmer, a stabilizing ring 12 is placed below the reinforcing ring 8, the inner wall of the stabilizing ring 12 is contacted with the outer surface of the compression spring 11, the bottom surface of the stabilizing ring 12 is fixedly connected with the inner bottom wall of the stud 1, and the stability of the compression spring 11 can be increased by using the stabilizing ring 12, prevent that compression spring 11 from taking place the skew, avoid compression spring 11 to take place the skew, influence the problem of fly leaf 15 resilience effect.
Wherein, a backing plate 13 is placed above the stabilizing ring 12, the bottom surface of the backing plate 13 is fixedly connected with the top end of the compression spring 11, the upper surface of the backing plate 13 is contacted with the bottom surface of the movable plate 15, the backing plate 13 can prevent the compression spring 11 from directly contacting the movable plate 15, thereby avoiding the problem that the compression spring 11 is directly contacted with the movable plate 15, which causes excessive abrasion and affects the service life of the compression spring 11, the inner bottom wall of the rotating groove 4 is provided with a clamping groove 17, the inside of the clamping groove 17 is clamped with a bearing block 18, the bottom surface of the bearing block 18 is fixedly connected with the top end of the movable column 16, through the clamping groove 17 and the bearing block 18, the movable column 16 can be protected, meanwhile, the motion stability of the movable column 16 can be improved, the operation stability of the device can be improved, the gasket 2 is installed at the bottom end of the fastening spring 5, the inner wall of the gasket 2 is contacted with the outer surface of the stud 1, the gasket 2 can prevent the fastening spring 5 from directly contacting the plate, avoid inside fastening spring 5 imbeds panel, reduce the problem of the resilience force of fastening spring 5.
The utility model discloses a theory of operation is: when the tool is used, firstly, the stud 1 is placed perpendicular to a plate, then the tool is clamped into the rotating groove 4, when the tool is clamped into the rotating groove 4, the bearing block 18 is pushed to enter the clamping groove 17, the movable column 16 and the movable plate 15 are pushed to move downwards, the compression spring 11 is forced to contract, the movable frame 10 drives the positioning column 9 to retract into the clamping hole 14, the stud 1 can be smoothly screwed into the plate, when the stud 1 is screwed in, the tool is taken out of the rotating groove 4, the compression spring 11 pushes the movable plate 15 to move upwards, so that the positioning column 9 can be pushed out of the clamping hole 14 by matching with the movable frame 10, the external shape of the stud 1 can be changed by utilizing the positioning column 9, the stud 1 cannot rotate, the position of the stud 1 can be fixed more firmly, and the stud 1 is not easy to loosen, prevent that panel from taking place to rock and when vibrations, lead to the screw to take place to become flexible easily, make fastening effect worsen, make by fastener structure unstable, influence the screw result of use, and when screw in double-screw bolt 1, can shorten the distance of nut 3 between panel equally, thereby can make fastening spring 5 contract, utilize the elasticity that fastening spring 5 provided, can further increase the fastening effect of screw, and can compensate the gap that vibrations produced, it is not hard up further to have prevented that the screw from taking place, its fastening effect has been guaranteed.
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 (7)
1. The utility model provides a difficult not hard up screw, includes double-screw bolt (1), its characterized in that: the upper surface of the stud (1) is provided with a nut (3), the outer surface of the stud (1) is provided with a spring seat (19), a fastening spring (5) is installed on the bottom surface of the spring seat (19), a movable plate (15) is placed inside the stud (1), a compression spring (11) is installed on the inner bottom wall of the stud (1), two groups of clamping holes (14) are formed in the outer surface of the stud (1), two groups of movable frames (10) are movably hinged to the outer surface of the movable plate (15), positioning columns (9) are movably hinged inside the movable frames (10), each group of positioning columns (9) are clamped inside the clamping holes (14), movable through holes (7) are formed in the bottom surface of the nut (3) and the top end of the stud (1), and movable columns (16) are clamped together by the movable through holes (7), the bottom end of the movable column (16) is fixedly connected with the upper surface of the movable plate (15).
2. A non-loosening screw as claimed in claim 1, wherein: the upper surface of the nut (3) is provided with a rotating groove (4), and the outer surface of the stud (1) is provided with a thread groove (6).
3. A non-loosening screw as claimed in claim 1, wherein: the outer surface of the movable column (16) is provided with a reinforcing ring (8), and the bottom surface of the reinforcing ring (8) is fixedly connected with the upper surface of the movable plate (15).
4. A non-loosening screw as claimed in claim 3, wherein: a stabilizing ring (12) is arranged below the reinforcing ring (8), the inner wall of the stabilizing ring (12) is in contact with the outer surface of the compression spring (11), and the bottom surface of the stabilizing ring (12) is fixedly connected with the inner bottom wall of the stud (1).
5. A non-loosening screw as claimed in claim 4, wherein: a backing plate (13) is arranged above the stabilizing ring (12), the bottom surface of the backing plate (13) is fixedly connected with the top end of the compression spring (11), and the upper surface of the backing plate (13) is in contact with the bottom surface of the movable plate (15).
6. A non-loosening screw as claimed in claim 2, wherein: the inner bottom wall of the rotating groove (4) is provided with a clamping groove (17), the inner part of the clamping groove (17) is clamped with a bearing block (18), and the bottom surface of the bearing block (18) is fixedly connected with the top end of the movable column (16).
7. A non-loosening screw as claimed in claim 1, wherein: the bottom end of the fastening spring (5) is provided with a gasket (2), and the inner wall of the gasket (2) is in contact with the outer surface of the stud (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220292819.XU CN216842579U (en) | 2022-02-14 | 2022-02-14 | Screw not easy to loosen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220292819.XU CN216842579U (en) | 2022-02-14 | 2022-02-14 | Screw not easy to loosen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216842579U true CN216842579U (en) | 2022-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220292819.XU Active CN216842579U (en) | 2022-02-14 | 2022-02-14 | Screw not easy to loosen |
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| Country | Link |
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| CN (1) | CN216842579U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115110827A (en) * | 2022-08-08 | 2022-09-27 | 科宁工程科技(南京)有限公司 | Friction damping shock insulation rubber support |
-
2022
- 2022-02-14 CN CN202220292819.XU patent/CN216842579U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115110827A (en) * | 2022-08-08 | 2022-09-27 | 科宁工程科技(南京)有限公司 | Friction damping shock insulation rubber support |
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