Anti-loose self-tapping screw
By setting a spring ring and a pin hole on the rotating head of the self-tapping screw, and then hammering the pin post to cut off the rib plate and push out the spring ring after screwing it in, the problem of the self-tapping screw loosening in a vibration environment is solved, achieving excellent anti-loosening effect and tight connection.
Patent Information
- Application Number
- CN202520285814.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-02-21
AI Technical Summary
Self-tapping screws without washers are prone to loosening in vibrating environments. Even with pre-applied washers, they are difficult to screw in completely, resulting in gaps between the screw head and the connector, which affects the tightening effect.
The design is as follows: In the structure of the self-tapping screw, the rotating head is fitted with an embedded ring structure, the rotating head is equipped with a ring-shaped cloth, the rotating head is equipped with an elastic ring, the rotating head is equipped with a pin hole, the pin hole is equipped with a pin post, and a rib plate is provided between the pin post and the rotating head. After screwing in, the pin post is hammered to cut the rib plate and push out the elastic ring to compensate for the gap.
It achieves excellent anti-loosening effect in vibration environments, tight connection, complete overall function, and strong practicality.
Smart Images
Figure CN223806424U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fastener manufacturing technical field, more specifically, it relates to a kind of self-tapping screw. BACKGROUND
[0002] If the self-tapping screw without gasket is installed is completed after spinning, if working environment is in vibration environment for a long time, it can still be loose, and the anti-loose effect is weak.If gasket is installed in advance, it is difficult to make self-tapping screw spin completely, and there is gap between rotating head and connecting piece, and the overall effect is not good.Accordingly, the utility model provides a kind of self-tapping screw. UTILITY MODEL CONTENTS
[0003] The utility model aims at overcoming the deficiency in the prior art, provide a kind of self-tapping screw, the self-tapping screw has the characteristics that the anti-loose effect is good, and connection is tight.
[0004] To solve the above technical problems, the utility model aims at realizing as follows: a kind of self-tapping screw is involved in the utility model, including the screw body with self-tapping head in one end and rotating head in the other end, the rotating head is inverted circular table structure, cross rotating groove is formed in the rotating head, the side surface of the rotating head is provided with the closed ring-shaped accommodating groove, the rotating head is provided with the elastic ring embedded in the accommodating groove, the elastic ring is completely buried in the accommodating groove, the groove bottom of the accommodating groove is provided with the thimble hole penetrating the rotating head along the axial direction of the screw body, the thimble column is arranged in the thimble hole, one end of the thimble column extends out of the thimble hole, and the other end abuts against the elastic ring, and the outer wall of the thimble column is connected with the inner wall of the thimble hole by the rib plate to keep the thimble column fixed.
[0005] The utility model is further provided as follows: the number of the thimble hole is not less than three; the thimble hole is arranged in annular array around the axis of the screw body.
[0006] The utility model is further provided as follows: the interval angle between the adjacent two thimble holes is equal.
[0007] The utility model is further provided as follows: the elastic ring is rubber elastic ring.
[0008] The utility model is further provided as follows: the thimble column and the rib plate are integrated; the rib plate and the rotating head are integrated.
[0009] As described above, the utility model has the following beneficial effects: the self-tapping screw involved in the utility model is firstly spun by completing automatic screw, then the thimble column on the convex rotating head end face is hammered, so that it moves axially relative to the thimble hole, and the rib plate is cut off at the same time, and the elastic ring is ejected, the slight gap between the rotating head and the connecting piece is compensated, so as to play the anti-loose effect, the anti-loose effect is good, the connection is tight, the overall function is perfect, and the practicability is strong.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 is the overall structure schematic diagram of the utility model;
[0011] Figure 2 is the partial structure schematic diagram of the utility model. DETAILED DESCRIPTION
[0012] In order to make the technical personnel in the art better understand the technical scheme of the utility model, the preferred embodiment of the utility model is described below in conjunction with specific examples, but it should be understood that these descriptions are only to further illustrate the features and advantages of the utility model, and not to limit the utility model patent claims. Based on the examples in the utility model, all other examples obtained by the ordinary skilled person in the art without creative labor belong to the scope of protection of the utility model.
[0013] The utility model is further illustrated below in conjunction with the drawings and preferred examples.
[0014] Example 1
[0015] Referring to Figure 1 And Figure 2 As shown in the utility model, a self-tapping screw of the utility model relates to a self-tapping screw, including the screw body 2 with the self-tapping head (not shown) at one end and the rotating head 1 at the other end, the rotating head 1 is inverted circular cone structure, the rotating head 1 is provided with cross rotating groove (not shown), the side surface of the rotating head 1 is provided with the closed ring-shaped accommodating groove 3, the rotating head 1 is provided with the elastic ring 4 embedded in the accommodating groove, the elastic ring 4 is completely buried in the accommodating groove 3, the groove bottom of the accommodating groove 3 is provided with the thimble hole 5 penetrating the rotating head up and down along the axial direction of the screw body 2, the thimble hole 5 is provided with the thimble column 6, one end of the thimble column 6 extends out of the thimble hole, the other end abuts against the elastic ring, the outer wall of the thimble column 6 and the inner wall of the thimble hole 4 are connected with the rib plate 7 for fixing the thimble column.
[0016] Further, the number of the thimble hole 5 is not less than three, and the thimble hole 5 is arranged in annular array around the axis of the screw body 2.
[0017] Further, the interval angle between the adjacent two thimble holes 5 is equal.
[0018] Further, the elastic ring 4 is a rubber elastic ring.
[0019] Further, the thimble column 6 and the rib plate 7 are integrated, and the rib plate 7 and the rotating head 1 are integrated.
[0020] In the embodiment, the self-tapping screw is first screwed, at which time the elastic ring 4 on the self-tapping screw is completely embedded in the accommodating groove 3, the end of the rotating head 1 facing the connecting piece is a smooth surface, the connection is convenient and tight, after the screwing is completed, the plunger column 6 protruding from the end surface of the rotating head 1 is hammered by a hammer, so that it moves axially relative to the plunger hole 5, and at the same time, the rib plate 7 is cut off, until the elastic ring 4 is ejected, so as to compensate for the slight gap between the rotating head 1 and the connecting piece, so as to achieve the anti-loose effect.
[0021] The anti-loose self-tapping screw of the utility model relates to the technical field of fasteners, and relates to an anti-loose self-tapping screw which comprises a rotating head 1, a connecting piece 2, an accommodating groove 3, an elastic ring 4, a plunger hole 5, a rib plate 7 and a plunger column 6.
[0022] Unless otherwise specified and limited, in the utility model, if there are terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, the orientation or positional relationship is based on the actual shown orientation or positional relationship, and is only for the convenience of describing the utility model and simplifying the description, and therefore the utility model does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore the terms describing the orientation or positional relationship in the utility model are only used for exemplary description, and cannot be understood as a limitation on the patent, and for ordinary skilled persons in the art, the specific meaning of the above terms can be understood in combination with the embodiments and according to the specific circumstances.
[0023] Unless otherwise specified and limited, in the utility model, if there are terms "setting", "connection" and "connection", they should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium; can be the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0024] The above describes the preferred embodiments of the utility model in detail. It should be understood that ordinary skilled persons in the art can make many modifications and changes without creative labor according to the concept of the utility model. Therefore, any technical scheme obtained by logical analysis, reasoning or limited experiment on the basis of the prior art according to the concept of the utility model should be within the protection scope determined by the claims.
Claims
1. A self-locking self-tapping screw comprising a screw body having a self-tapping head at one end and a rotating head at the other end, the rotating head being in the shape of an inverted circular truncated cone, a cross-shaped rotating groove being formed in the rotating head, characterized in that: The side of the rotating head is provided with a closed ring-shaped accommodating groove, the rotating head is sleeved with an elastic ring embedded in the accommodating groove, the elastic ring is completely embedded in the accommodating groove, the bottom of the accommodating groove is provided with a thimble hole penetrating the rotating head along the axial direction of the screw body, the thimble hole is provided with a thimble column, one end of the thimble column extends out of the thimble hole and the other end abuts against the elastic ring, and a rib plate connecting the outer wall of the thimble column and the inner wall of the thimble hole is arranged to fix the thimble column.
2. The locking screw of claim 1, wherein: The number of the thimble holes is not less than three, and the thimble holes are arranged in an annular array around the axis of the screw body.
3. The locking screw of claim 2, wherein: The interval angle between adjacent two thimble holes is equal.
4. The locking screw of claim 3, wherein: The elastic ring is a rubber elastic ring.
5. The locking screw of Claim 1, wherein: The thimble column and the rib plate are integrated, and the rib plate and the rotating head are integrated.