Furniture screw and furniture
Technical Field
The utility model relates to the technical field of furniture, in particular to a furniture screw and furniture.
Background
Screws are a common fastener and are widely used in machinery, electrical appliances, furniture and buildings. Most of screws are made of metal, are cylindrical, have concave-convex grooves engraved on the surfaces, and are called threads, wherein the threads are spiral inclined surfaces encircling the side surfaces of the screws. Many screws have special functions such as anti-loose, anti-leak, adjustable, lubrication, anti-lock, pre-assembly, etc. in the modern industry.
In the prior art, as disclosed in the chinese patent of publication No. CN209115487U, a straight-head screw is disclosed, which comprises a screw head, a straight-head deep groove is provided at the middle position of the top of the screw head, an inward curled protrusion is provided at one end of the screw head outside the straight-head deep groove, a groove is provided at the middle position of the screw head outside, vertical thread rolling is uniformly provided above the groove on the screw head outside, a screw is connected at the bottom of the screw head, and a transverse thread rolling is provided at the bottom of the screw outside. The screw with the structural design is not easy to complete the tightening operation of the screw when the screw driver is not used, the phenomenon that external force cannot be applied to the screw to twist the screw can exist when the screw driver is used, the screw is easy to slip and the phenomenon that external force cannot be applied to the screw to twist the screw when the screw is tightened by bare hands, and the tightening operation of the screw is not easy to complete.
Accordingly, there is a need for improvements and enhancements in the art.
Disclosure of utility model
The object of the present utility model is to provide a new furniture screw which solves the above mentioned problems of the prior art.
Another object of the present utility model is to provide a piece of furniture with the above furniture screw.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
a furniture screw comprises a screw head, wherein a one-to-one groove is formed in the middle of the top of the screw head, a screw rod is connected to the bottom of the screw head, and a twisting hole penetrates through the screw head corresponding to the one-to-one groove along the radial direction.
As a further scheme of the utility model, the first side surface of the straight groove comprises a first straight surface and a first inclined surface, the second side surface of the straight groove comprises a second straight surface and a second inclined surface, the first straight surface is opposite to the second inclined surface, and the first inclined surface is opposite to the second straight surface.
As a further scheme of the utility model, the included angle between the first inclined plane and the second inclined plane and the end face of the screw head is 20 degrees.
As a further proposal of the utility model, the length of the top edges of the first inclined surface and the second inclined surface is 1/2 of the diameter of the screw head, and the length of the bottom edges of the first inclined surface and the second inclined surface is less than 1/2 of the diameter of the screw head.
As a further proposal of the utility model, the outer circumferential surface of the screw head is provided with a plurality of strip-shaped bulges arranged along the axial direction.
As a further scheme of the utility model, a V-shaped groove is arranged between two adjacent strip-shaped bulges.
As a further proposal of the utility model, one end of the screw rod far away from the screw head is provided with external threads.
As a further proposal of the utility model, an annular bulge is arranged on the external thread of the screw rod near the screw head.
As a further scheme of the utility model, two annular cambered surfaces are arranged at the two inlets of the twisting hole.
A piece of furniture comprising any one of the furniture screws described above.
Compared with the prior art, the utility model has the beneficial effects that:
Due to the adoption of the structural design, the screw head is radially penetrated with the twisting hole, so that a worker can twist or assist the screw head by twisting or assisting the screw head by hand to realize the screw tightening operation even if the worker does not have the screw driver and cannot twist or can not complete the screw tightening operation by hand.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
FIG. 2 is a side view of an embodiment of the present utility model;
Fig. 3 is a cross-sectional view of an embodiment of the present utility model.
The reference numerals in the figures are respectively:
100-screw heads, 200-screw rods;
101-a straight slot, 102-a twisting hole, 103-a strip-shaped protrusion and 104-a groove;
1011-first straight face, 1012-first inclined face, 1013-second straight face, 1014-second inclined face;
201-external threads, 202-annular protrusions;
1021-annular cambered surface.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
For the convenience of understanding the present embodiment, a furniture screw and furniture disclosed in the embodiments of the present utility model will be described in detail.
Examples:
As shown in FIGS. 1-3, the furniture screw comprises a screw head 100, wherein a one-to-one groove 101 is formed in the middle position of the top of the screw head 100, a groove is formed in the bottom of the screw head 101, a screw rod 200 is connected to the bottom of the groove for reducing weight of the screw, so that cost is reduced, a twisting hole 102 is formed in the screw head 100, corresponding to the one-to-one groove 101, in a penetrating manner in the radial direction below the one-to-one groove 101, and through the structural design, when a worker cannot twist or cannot complete tightening operation of the screw by hands without a screw driver, the worker can twist or assist the screw driver and twist the screw head by hands through penetrating rod-shaped objects, so that the screw tightening operation is improved in practicability.
As a preferred mode of this embodiment, the first side surface of the straight slot 101 includes a first straight surface 1011 and a first inclined surface 1012, the second side surface of the straight slot 101 includes a second straight surface 1013 and a second inclined surface 1014, the first straight surface 1011 is opposite to the second inclined surface 1014, the first inclined surface 1012 is opposite to the second straight surface 1013, and by the above-mentioned structure design, when the screw is screwed down clockwise to a certain extent, the friction force exerted by the first inclined surface 1012 and the second inclined surface 1013 on the head of the screw is smaller than the torsion force of the screw, the screw slides out of the straight slot 101 through the first inclined surface 1012 and the second inclined surface 1013, so that the torsion force of the screw cannot be applied on both sides of the straight slot 101, and the screw is prevented from being twisted off due to excessive force.
As a preferable mode of the embodiment, the included angle between the first inclined plane 1012 and the second inclined plane 1013 and the end face of the screw head is 20 degrees, the length of the top edges of the first inclined plane 1012 and the second inclined plane 1013 is 1/2 of the diameter of the screw head 100, and the length of the bottom edges of the first inclined plane 1012 and the second inclined plane 1013 is less than 1/2 of the diameter of the screw head 100, by setting the relevant parameters of the first inclined plane 1012 and the second inclined plane 1013, the corresponding function of the screwdriver can be better played when the screwdriver is used for screwing the screw.
Specifically, the outer circumferential surface of the screw head 100 is provided with a plurality of strip-shaped protrusions 103 arranged along the axial direction, and a V-shaped groove 104 is arranged between two adjacent strip-shaped protrusions 103, so that the screw head can be mounted by hand even when no screw driver is provided, and the friction force of the strip-shaped protrusions 103 for mounting by hand can be increased, thereby achieving the effect of tightening and fixing.
Specifically, the screw 200 has an external thread 201 at one end far away from the screw head 100, typically, two thirds of the bottom end of the screw 200 is a screw rod, and one third of the screw near the screw head 100 is a polished rod, so that the screw head 100 can be fixed with respect to a product, and the screw head can be smoothly abutted thereon, and the fixing effect is good.
As a preferred mode of this embodiment, an annular protrusion 202 is provided on the external thread of the screw rod 200 near the screw head 100, and the screw is prevented from loosening by the design of the annular protrusion 202.
As a preferred mode of this embodiment, the two inlets of the twisting hole 102 are provided with an annular arc surface 1021, and by providing the annular arc surface 1021 at the inlet of the twisting hole 102, the rod-shaped object can be conveniently and rapidly inserted into the twisting hole 102.
A piece of furniture comprising any one of the furniture screws described above.
In conclusion, the utility model solves the defects in the prior art through the structural design, and has the characteristics of reasonable structure, improved practicability and the like.
In addition, in the description of embodiments of the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intermediate medium, or in communication between two elements. The specific meaning of the above terms in the present utility model will be understood by those skilled in the art in specific cases.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
It should be noted that the foregoing embodiments are merely illustrative embodiments of the present utility model, and not restrictive, and the scope of the utility model is not limited to the foregoing embodiments, but it should be understood by those skilled in the art that any modification, variation or substitution of some technical features described in the foregoing embodiments may be easily made within the scope of the present utility model without departing from the spirit and scope of the technical solutions of the embodiments. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.