CN218844806U - Screw with anti-disengaging structure - Google Patents
Screw with anti-disengaging structure Download PDFInfo
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- CN218844806U CN218844806U CN202223432023.9U CN202223432023U CN218844806U CN 218844806 U CN218844806 U CN 218844806U CN 202223432023 U CN202223432023 U CN 202223432023U CN 218844806 U CN218844806 U CN 218844806U
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Abstract
The utility model provides a screw with an anti-disengaging structure, which comprises a screw body, wherein the front end of the screw body is provided with a slot, the slot is arranged along the two sides of the screw body which radially runs through the screw body, and the slot runs through the front end of the screw body; the front end of the slot is in a taper shape with a narrow front end and a wide rear end; an extrusion block matched with the slot is arranged in the slot; the screw body on be equipped with the through-hole that runs through both ends around it, its overall structure is the same with the structure of ordinary screw, is being connected the back with the screw hole, stretches into the through-hole through the instrument, orders about the extrusion piece and moves forward, makes the front end of screw take place to open deformation, makes the front end of screw and the wall of screw hole form the joint cooperation, so restriction screw outwards deviates from.
Description
Technical Field
The utility model relates to a five metals fastener technical field, concretely relates to screw with anti-disengaging structure.
Background
Screws are fasteners used to connect with threaded holes or nuts for securing two parts together. The problem of looseness of the connection of the screws often occurs under the influence of vibration, so that various anti-drop screws appear in the prior art.
For example, patent application No. CN2014204635235 discloses an anti-slip screw, which has a cavity 6 in the screw rod 2 for the insertion of the post rod 5 to drive the protrusion 4 to move out and clamp the connecting member. The foregoing is by reference to the prior art which is closer to the present application.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a be different from prior art's screw that has anti-disengaging structure, it can form non-detachable connection structure.
The technical scheme of the utility model is realized like this:
a screw with an anti-disengaging structure comprises a screw body, wherein the front end of the screw body is provided with a slot, the slot penetrates through two sides of the screw body along the radial direction of the screw body, and the slot penetrates through the front end of the screw body;
the front end of the slot is in a taper shape with a narrow front end and a wide rear end;
an extrusion block matched with the slot is arranged in the slot;
the screw body is provided with a through hole penetrating through the front end and the rear end of the screw body.
By adopting the technical scheme, the front end of the screw body forms a slotted structure, the extrusion block is connected in the slot, and the front end of the screw body is opened and deformed by driving the extrusion block to move forwards; the extrusion block is driven to move forwards by stretching a slender tool into the through hole, and the front end of the extrusion block is in a taper shape with a narrow front end and a wide rear end, so that the front end of the screw body can be forced to expand and deform when the extrusion block moves forwards, and the screw body connected in the threaded hole can be in clamping fit with the wall of the threaded hole to prevent the screw body from dropping out of the threaded hole.
The utility model discloses further set up to, the extrusion piece on be equipped with the screw hole, the screw hole runs through the both sides setting around the extrusion piece, the screw hole with the through-hole correspond the setting, screw hole female connection has the locating lever.
Through adopting above-mentioned technical scheme, the fluting and take out from the fluting can be packed into along the radial of screw body to the extrusion piece is fixed a position to the accessible locating lever, makes the extrusion piece connect in the fluting, prevents that the extrusion piece from deviating from the fluting, and the locating lever passes through the helicitic texture with the extrusion piece to be connected, easy dismounting, the dismouting of the piece of also making things convenient for like this.
The utility model discloses further set up to, the tip of locating lever be equipped with the operation groove of a font.
Through adopting above-mentioned technical scheme, conveniently use the screwdriver of a straight line shape to operate the locating lever.
The utility model discloses further set up to, the first half section of grooved cross-section trapezoidal, the cross-section of grooved latter half section is square.
Through adopting above-mentioned technical scheme, the cross-section setting of trapezium structure when the extrusion piece moves forward, can form the extrusion to the screw body, makes the screw body take place to open the deformation, and the cross-section of square structure makes the connection that the extrusion piece can be more stable in the fluting.
The utility model discloses further set up to, the front end of extrusion piece and the front end interval of screw body set up.
By adopting the technical scheme, a space for the forward movement of the extrusion block is reserved, and the difficulty of the forward movement of the extrusion block is reduced.
The utility model discloses further set up to, the length of locating bar be greater than the length of extrusion piece in front and back direction.
Through adopting above-mentioned technical scheme for the locating lever can stretch into in the through-hole, forms the location restriction to the extrusion piece.
The utility model discloses further set up to, the locating lever diameter equal to or be less than the diameter of through-hole.
By adopting the technical scheme, the beneficial effects of the utility model are that:
the utility model provides a screw with anti-disengaging structure, its overall structure is the same with the structure of ordinary screw, is being connected the back with the screw hole, stretches into the through-hole through the instrument, orders about the extrusion piece and moves forward, makes the front end of screw take place to open deformation, makes the front end of screw and the wall of screw hole form the joint cooperation, so the restriction screw outwards deviates from.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a side view of the present invention;
fig. 3 is a cross-sectional view of the present invention.
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 efforts belong to the protection scope of the present invention.
The present invention is described below with reference to fig. 1-3:
a screw with an anti-disengaging structure comprises a screw body 1, wherein the screw body 1 is composed of a screw rod part and a screw cap part. The front end of the screw body 1 is provided with a slot 2, the slot 2 is arranged along two sides of the screw body 1 which radially penetrate through the screw body 1, and the slot 2 penetrates through the front end of the screw body 1.
The front half section of the slot 2 is in a taper shape with a narrow front end and a wide rear end, the section of the front half section of the slot 2 is trapezoidal, the section of the rear half section of the slot 2 is square, an extrusion block 3 which is in adaptive connection with the slot 2 is arranged in the slot 2, the extrusion block 3 is limited to be separated from the slot 2 only along the radial direction of the screw body 1, the front end of the extrusion block 3 and the front end of the screw body 1 are arranged at intervals, and a space for the extrusion block 3 to move forwards is reserved; be equipped with screw hole 4 on the extrusion piece 3, screw hole 4 runs through the front and back both sides setting of extrusion piece 3, and screw hole 4 and the coaxial setting that corresponds of through-hole, and screw hole 4 female connection has locating lever 5, and the tip of locating lever 5 is equipped with the operation groove 6 of a font. The screw body 1 is provided with a through hole 7 penetrating through the front end and the rear end of the screw body, the through hole 7 is communicated with the open groove 2, and the through hole 7 is coaxial with the screw body 1.
The extrusion block 3 is firstly arranged in the open slot 2, the positioning rod 5 is operated to rotate through a screwdriver, the positioning rod 5 is rotated to enable the positioning rod 5 to enter the through hole 7, the extrusion block 3 is limited and fixed in the open slot 2, and the extrusion block 3 is prevented from falling out of the open slot 2.
How to operate the extrusion block 3: after the screw is screwed into the threaded hole, an elongated tool is inserted into the through hole 7, one end of the tool abuts against the extrusion block 3 or the positioning rod 5, and the other end of the tool can be struck by a hammer to drive the extrusion block 3 forward.
The length of locating lever 5 is greater than the length of extrusion piece 3 in the front and back direction, and the diameter of locating lever 5 is equal to or less than the diameter of through-hole 7 in the embodiment that this application provided, and the diameter of locating lever 5 is less than the diameter of through-hole 7.
The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a screw with anti-disengaging structure, includes the screw body, its characterized in that: the front end of the screw body is provided with a slot, the slot penetrates through two sides of the screw body along the radial direction of the screw body, and the slot penetrates through the front end of the screw body;
the front end of the slot is in a taper shape with a narrow front end and a wide rear end;
an extrusion block matched with the slot is arranged in the slot;
the screw body is provided with a through hole penetrating through the front end and the rear end of the screw body.
2. The screw with a retaining structure according to claim 1, wherein: the extrusion piece on be equipped with the screw hole, the screw hole runs through the front and back both sides setting of extrusion piece, the screw hole with the through-hole correspond the setting, screw hole female connection has the locating lever.
3. The screw with a retaining structure according to claim 2, wherein: the end part of the positioning rod is provided with a linear operation groove.
4. The screw with a retaining structure according to claim 1, wherein: the section of the front half section of the slot is trapezoidal, and the section of the rear half section of the slot is square.
5. The screw with the anti-dropping structure according to claim 1 is characterized in that: the front end of the extrusion block and the front end of the screw body are arranged at intervals.
6. The screw with a retaining structure according to claim 2, wherein: the length of the positioning rod is greater than that of the extrusion block in the front-back direction.
7. The screw with a retaining structure according to claim 2, wherein: the diameter of the positioning rod is equal to or smaller than that of the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223432023.9U CN218844806U (en) | 2022-12-21 | 2022-12-21 | Screw with anti-disengaging structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223432023.9U CN218844806U (en) | 2022-12-21 | 2022-12-21 | Screw with anti-disengaging structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218844806U true CN218844806U (en) | 2023-04-11 |
Family
ID=87293017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223432023.9U Active CN218844806U (en) | 2022-12-21 | 2022-12-21 | Screw with anti-disengaging structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218844806U (en) |
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2022
- 2022-12-21 CN CN202223432023.9U patent/CN218844806U/en active Active
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