CN212775120U - Screw nail - Google Patents

Abstract

The utility model discloses a screw, which comprises a head part and a cylindrical rod part, wherein one end of the rod part is connected with the head part; the head comprises a front surface, a back surface opposite to the front surface and four side surfaces connected between the front surface and the back surface; the front surface is provided with a circular boss and a pair of ring grooves, the circular boss is arranged in the center of the front surface and is concavely provided with an assembly groove, and the pair of ring grooves are symmetrically arranged on two sides of the circular boss; the side is circular-arc and is connected with circular-arc connection face between two adjacent sides, and every connection face is protruding to form the sand grip of a plurality of intervals settings. Compared with the prior art, the beneficial effects of the utility model reside in that: the manual installation performance is improved by the four concave side faces and the convex strips used for preventing skidding on the connecting faces, the structure is simple and effective, and meanwhile, the annular grooves are formed in the head of the spring screw, so that the spring screw can be detached under specific conditions, and the attractiveness of the spring screw can be improved.

Description

Screw nail

[ technical field ] A method for producing a semiconductor device

The utility model relates to a screw technical field, specificly relate to a screw.

[ background of the invention ]

The screw is also referred to as a screw, and is a tool for fastening machine parts of an object step by utilizing the physics and mathematical principles of the inclined circular rotation and the friction force of the object, and the screw becomes an essential fastening piece for people in daily life or industry. The variety of the screws is various, however, the heads of the existing screws are usually made into hexagonal shapes or circular shapes, and both of the screws are not designed for manual operation, so that the spring nails are difficult to install quickly through manual operation during assembly.

In view of the above, it is desirable to provide a new screw to overcome the deficiencies of the prior art.

[ Utility model ] content

The utility model aims at providing a screw aims at improving the assembly performance of screw.

In order to achieve the above object, the present invention provides a screw, which comprises a head and a cylindrical rod part with one end connected with the head; the head comprises a front surface, a back surface opposite to the front surface and four side surfaces connected between the front surface and the back surface; the front surface is provided with a circular boss and a pair of ring grooves, the circular boss is arranged in the center of the front surface and is concavely provided with an assembling groove used for connecting a corresponding assembling tool when the screw is installed, the pair of ring grooves are symmetrically arranged on two sides of the circular boss, each ring groove comprises a semicircular first groove and a second groove communicated with the middle part of the first groove, and the second groove is arranged on one side, far away from the circular boss, of the first groove; the side is circular-arc and is connected with circular-arc connection face between two adjacent sides, and every connection face is protruding to form the sand grip that a plurality of intervals set up.

As an improvement of the screw of the present invention, the central axis of the circular boss and the central axis of the first groove all coincide with the central axis of the rod portion.

As an improvement of the screw of the present invention, the cross-sectional shape of the first groove and the cross-sectional shape of the second groove are rectangular.

As an improvement of the utility model, the shape of the assembly groove is any one of cross, in-line, regular hexagon and rectangle.

As an improvement of the screw of the present invention, the length direction of the raised strip is parallel to the central axis of the rod portion.

As an improvement of the screw of the present invention, the middle portion of the side face is close to the direction indent of the rod portion.

As an improvement of the screw, the side with it has the soft glue layer all to cover on the connection face, just the soft glue layer covers through the mode of rubber coating the side with on the connection face.

As an improvement of the utility model, the back is concave to be equipped with the mounting groove, the one end of pole portion with the bottom of mounting groove links to each other and stretches out the other end the mounting groove.

As an improvement of the screw of the utility model, the head is made of stainless steel material.

Compared with the prior art, the utility model provides a screw's beneficial effect lies in: the manual installation performance is improved by arranging the four concave side faces on the head and arranging the convex strips used for preventing skidding on the connecting face between the two side faces, the structure is simple and effective, the head is also provided with the annular groove, the screw can be detached under specific conditions, and the attractiveness of the screw can be improved.

[ description of the drawings ]

Fig. 1 is a perspective view of the screw of the present invention;

FIG. 2 is a perspective view of the screw of FIG. 1 at another angle;

fig. 3 is a perspective view of the screw of fig. 1 in another embodiment.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantageous technical effects of the present invention more clearly understood, the present invention is further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration only and not by way of limitation.

Referring to fig. 1, the present invention provides a screw 100, which is mainly used to improve the assembling performance of the screw 100.

In an embodiment of the present invention, screw 100 includes a head 10 and a cylindrical shaft 20 connected to head 10 at one end.

Specifically, the head 10 includes a front surface 101, a back surface 102 opposite to the front surface 101, and four side surfaces 103 connected between the front surface 101 and the back surface 102; the front surface 101 is provided with a circular boss 1011 and a pair of circular grooves 1012, the circular boss 1011 is arranged at the center of the front surface 101 and is concavely provided with an assembling groove 1013 used for connecting a corresponding assembling tool when a screw is installed, the pair of circular grooves 1012 are symmetrically arranged at two sides of the circular boss 1011, each circular groove 1012 comprises a semicircular first groove 1014 and a second groove 1015 communicated with the middle part of the first groove 1014, and the second groove 1015 is arranged at one side of the first groove 1014 far away from the circular boss 1011; the side surfaces 103 are arc-shaped, an arc-shaped connecting surface 104 is connected between two adjacent side surfaces 103, and a plurality of convex strips 1041 arranged at intervals are formed on each connecting surface 104 in a protruding manner.

In the present embodiment, the middle portion of the side surface 103 is recessed toward the direction close to the shaft 20, so as to facilitate the clamping by the fingers, that is, the screw 100 can be conveniently screwed or unscrewed by hand, for example, when the fastening requirement of the screw 100 is not high or the screw 100 is in the initial stage of installation, the stress on the screw 100 is small, and at this time, the installation is faster by hand. The fitting groove 1013 is in the shape of any one of a cross, a line, a regular hexagon, and a rectangle, and is used to connect fitting tools such as a cross wrench, a line wrench, and an allen wrench. The central axis of the circular boss 1011 and the central axis of the first groove 1014 are both coincident with the central axis of the rod 20, and the cross-sectional shapes of the first groove 1014 and the second groove 1015 are both rectangular, although the cross-sectional shapes of the first groove 1014 and the second groove 1015 may also be set to be triangular or trapezoidal, again without specific limitation.

It can be understood that the hand-operated mounting hand feeling of the screw 100 can be improved through the concave side surface 103 (which is convenient for finger clamping), then the raised strip 1041 on the connecting surface 104 can play a role of anti-slip, the hand-operated mounting hand feeling of the screw 100 can be further improved, meanwhile, the weight of the head 10 can be effectively reduced under the condition of ensuring the strength by the annular groove 1012, thereby reducing the material cost of the screw 100, the annular groove 1012 can also be used as a stress point for rotating the screw 100 under a specific condition, namely, when the assembling groove 1013 causes the screw 100 to be disassembled by a corresponding assembling tool due to damage, the annular groove 1012 can be used for disassembling the screw 100, thereby improving the disassembling performance of the screw 100, in addition, the symmetrical structure of the annular groove 1012 can also play a role of beauty, thereby improving the beauty of the screw 100.

Further, in order to reduce the labor intensity of the screw 100 during manual installation, the side surface 103 and the connection surface 104 are covered with a soft adhesive layer (not shown), so that the fingers of the installer can be effectively protected through the soft adhesive layer, and the labor intensity of the installer is also reduced. In the embodiment, the soft rubber layer covers the side surface 103 and the connecting surface 104 in a rubber coating manner, so that the process is mature and stable, and the production yield of the screw 100 is improved.

Further, in order to improve the anti-slip effect of the head 10 and further reduce the labor intensity of manual installation, the length direction of the protruding strip 1041 is parallel to the central axis of the rod portion 20, so that the protruding strip 1041 is more easily stressed, and the purpose of improving the anti-slip effect is achieved.

Further, the head 10 may be made of a stainless steel material, which may improve the corrosion resistance of the screw 100, so that the screw 10 has a better performance in a salt spray resistance experiment, thereby expanding the application range of the screw 100. Of course, the head 10 may be made of 45# steel, titanium alloy or copper alloy material, and is not limited in this regard.

Further, the head 10 may further have a mounting groove 1021 recessed on the back 102 to further reduce the weight of the head 10, the mounting groove 1021 is also used for connecting the rod 20, specifically, one end of the rod 20 is connected to the bottom of the mounting groove 1021, and the other end extends out of the mounting groove 1021 to be used for connecting an article to be fastened, in this embodiment, one end of the rod 20 extending out of the mounting groove 1021 is provided with an external thread 201 on the surface, so that the screw 100 may be screwed with the article to be fastened through the external thread 201 of the rod 20.

In another embodiment, the screw 100 may further include a spring 302 assembly 30 sleeved outside the shaft 20 and connected to the head 10, wherein the spring 302 assembly 30 is used for pressing between the head 10 and an object to be fastened and connected to act as a pre-tightening force, so as to improve the fastening effect of the screw 100.

Specifically, the spring 302 assembly 30 includes a circular gasket 301 and a spring 302, the gasket 301 and the spring 302 are both sleeved outside the rod portion 20, and the spring 302 is connected between the gasket 301 and the bottom of the mounting groove 1021, it can be understood that the gasket 301 is used for pressing against an article needing threaded connection, and the spring 302 plays a role in improving a pre-tightening force after being compressed.

To sum up, the utility model provides a screw 100 is through setting up the side 103 of four indents at head 10 and be equipped with on the face 104 of being connected between two sides 103 and be used for skid-proof sand grip 1041 to improve manual installation performance, and simple structure is effective, and head 10 still is equipped with annular 1012 simultaneously, not only can be used for dismantling screw 100 under particular circumstances, can improve screw 100's pleasing to the eye degree moreover.

The invention is not limited solely to that described in the specification and the embodiments, and additional advantages and modifications will readily occur to those skilled in the art, and it is not intended to be limited to the specific details, representative apparatus, and illustrative examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.

Claims (9)

1. A screw, characterized by: comprises a head part and a rod part with one end connected with the head part and in a cylindrical shape; the head comprises a front surface, a back surface opposite to the front surface and four side surfaces connected between the front surface and the back surface; the front surface is provided with a circular boss and a pair of ring grooves, the circular boss is arranged in the center of the front surface and is concavely provided with an assembling groove used for connecting a corresponding assembling tool when the screw is installed, the pair of ring grooves are symmetrically arranged on two sides of the circular boss, each ring groove comprises a semicircular first groove and a second groove communicated with the middle part of the first groove, and the second groove is arranged on one side, far away from the circular boss, of the first groove; the side is circular-arc and is connected with circular-arc connection face between two adjacent sides, and every connection face is protruding to form the sand grip that a plurality of intervals set up.

2. The screw of claim 1, wherein: the central axis of the circular boss and the central axis of the first groove are coincided with the central axis of the rod part.

3. The screw of claim 2, wherein: the cross section shape of the first groove and the cross section shape of the second groove are both rectangular.

4. The screw of claim 1, wherein: the shape of the assembling groove is any one of a cross shape, a straight line shape, a regular hexagon and a rectangle.

5. The screw of claim 1, wherein: the length direction of the convex strip is parallel to the central axis of the rod part.

6. The screw of claim 1, wherein: the middle part of the side surface is concave towards the direction close to the rod part.

7. The screw of claim 1, wherein: the side with connect all to have covered the soft glue layer on the face, just the soft glue layer covers through the mode of rubber coating the side with connect on the face.

8. The screw of claim 1, wherein: the back is concavely provided with a mounting groove, one end of the rod part is connected with the bottom of the mounting groove and extends out of the mounting groove from the other end.

9. The screw of claim 1, wherein: the head is made of stainless steel materials.

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