CN214063509U - Anti-drop screw - Google Patents
Anti-drop screw Download PDFInfo
- Publication number
- CN214063509U CN214063509U CN202022495247.9U CN202022495247U CN214063509U CN 214063509 U CN214063509 U CN 214063509U CN 202022495247 U CN202022495247 U CN 202022495247U CN 214063509 U CN214063509 U CN 214063509U
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- China
- Prior art keywords
- screw
- groove
- locating lever
- seted
- locating
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Abstract
The utility model relates to a screw technical field aims at providing an anti-drop screw, and its technical scheme main points are including screw rod and nut, the screw rod is including setting up screwed screw portion and the location portion that is located screw portion top, the cross recess has been seted up to the upper surface of nut, location portion sets up the logical groove that runs through the cross recess middle part, the inner wall both sides that lead to the groove have been seted up and have been run through the constant head tank of location portion lateral wall, sliding connection has the locating piece in the constant head tank, it has the locating lever to lead to groove female connection, a word groove has been seted up at the top of locating lever, the bottom of locating lever is coniform, the locating piece becomes rather than the parallel inclined plane in bottom inclined plane towards the lateral wall of locating lever. The utility model discloses effectively reduce the emergence of the not hard up and condition that drops of screw, effectively promoted its fastening effect.
Description
Technical Field
The utility model relates to a screw technical field, more specifically say, it relates to an anti-drop screw.
Background
The screw is a tool for fastening the parts of an object step by utilizing the inclined circular rotation of the object and the physics and mathematics separation of friction.
The existing screw is easy to loosen and even fall off in the long-term use process, and the normal fastening effect of the existing screw is affected, so a new technical scheme needs to be provided to solve the problems.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide an anti-drop screw.
In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an anti-drop screw, includes screw rod and nut, the screw rod is including setting up screwed screw portion and the location portion that is located screw portion top, the cross groove has been seted up to the upper surface of nut, location portion sets up the logical groove that runs through the cross groove middle part, the inner wall both sides that lead to the groove have been seted up and have been run through the constant head tank of location portion lateral wall, sliding connection has the locating piece in the constant head tank, it has the locating lever to lead to groove female connection, a word groove has been seted up at the top of locating lever, the bottom of locating lever is coniform, the locating piece becomes the inclined plane parallel rather than the bottom inclined plane towards the lateral wall of locating lever.
Through adopting above-mentioned technical scheme, when installing this screw, will this screw in the work piece that needs to be fixed earlier, screw up the back with this screw again, screw in logical inslot with the locating lever, under the effect of locating lever tip, promote two locating pieces and remove towards both sides, make its lateral wall support tightly in the work piece to further promote the steadiness between screw and the work piece, thereby promote the fastening effect of screw, reduce the condition that the screw takes place not hard up or drops.
The utility model discloses further set up to: the outer side wall of the positioning block is an arc surface with the same radian as the outer side wall of the screw rod, and the surface of the positioning block is provided with a buffer layer made of an elastic material.
Through adopting above-mentioned technical scheme, through setting up the buffer layer, when the locating lever promoted two locating pieces and moves towards both sides, the buffer layer supported tightly in the work piece and was extruded and take place deformation to effectual frictional force between its and the work piece that promotes effectively promotes the fastening effect of screw.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a schematic sectional view of a part of the structure of the present invention;
fig. 3 is a schematic top view of the present invention.
Detailed Description
Embodiments of the present invention are further described with reference to fig. 1 to 3.
The utility model provides an anti-drop screw, including screw rod 1 and nut 2, screw rod 1 is including setting up screwed screw portion 3 and the location portion 4 that is located screw portion top, cross slot 5 has been seted up to the upper surface of nut 2, location portion 4 sets up the logical groove 6 that runs through 5 middle parts of cross slot, the constant head tank 7 that runs through 4 lateral walls in location portion is seted up to the inner wall both sides that lead to groove 6, sliding connection has locating piece 8 in constant head tank 7, it has locating lever 9 to lead to 6 female connection in the groove, a word groove 10 has been seted up at the top of locating lever 9, the bottom of locating lever 9 is coniform, locating piece 8 becomes the inclined plane parallel rather than the bottom inclined plane towards the lateral wall of locating lever 9.
When installing this screw, will twist into the work piece that needs to be fixed with this screw earlier, tighten this screw back again, twist logical groove 6 with locating lever 9 in, under the effect of locating lever 9 tip, promote two locating pieces 8 and remove towards both sides, make its lateral wall support tightly in the work piece to further promote the steadiness between screw and the work piece, thereby promote the fastening effect of screw, reduce the condition that the screw takes place not hard up or drops.
The lateral wall of locating piece 8 is the arc surface with the same radian of screw rod 1 lateral wall, and its surface is provided with the buffer layer 11 of being made by elastic material, and it is made by rubber materials in this embodiment, through setting up buffer layer 11, when locating piece 9 promoted two locating pieces 8 and moved towards both sides, buffer layer 11 supported tightly in the work piece and by the extrusion and take place deformation to effectual frictional force that promotes between its and the work piece effectively promotes the fastening effect of screw.
The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and the ordinary changes and replacements performed by those skilled in the art within the technical solution of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. The utility model provides an anti-drop screw, includes screw rod and nut, characterized by: the screw rod is including setting up screwed screw portion and the location portion that is located screw portion top, the cross groove has been seted up to the upper surface of nut, location portion sets up the logical groove that runs through the cross groove middle part, the inner wall both sides that lead to the groove have been seted up and have been run through the constant head tank of location portion lateral wall, sliding connection has the locating piece in the constant head tank, it has the locating lever to lead to the female connection of groove, a straight line groove has been seted up at the top of locating lever, the bottom of locating lever is coniform, the locating piece becomes the inclined plane parallel rather than the bottom inclined plane towards the lateral wall of locating lever.
2. A drop-preventing screw as claimed in claim 1, wherein: the outer side wall of the positioning block is an arc surface with the same radian as the outer side wall of the screw rod, and the surface of the positioning block is provided with a buffer layer made of an elastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022495247.9U CN214063509U (en) | 2020-11-02 | 2020-11-02 | Anti-drop screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022495247.9U CN214063509U (en) | 2020-11-02 | 2020-11-02 | Anti-drop screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214063509U true CN214063509U (en) | 2021-08-27 |
Family
ID=77399350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022495247.9U Active CN214063509U (en) | 2020-11-02 | 2020-11-02 | Anti-drop screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214063509U (en) |
-
2020
- 2020-11-02 CN CN202022495247.9U patent/CN214063509U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |