CN220037195U - Screw structure - Google Patents

Abstract

The utility model provides a screw structure, comprising: the screw head is provided with a first end face, a second end face opposite to the first end face, a first driving groove concavely arranged from the first end face towards the second end face and provided with a first groove bottom surface, a second driving groove concavely arranged from the first groove bottom surface towards the second end face, and a first driving outside arranged between the first end face and the second end face; the screw rod is arranged on the second end surface of the screw head and is provided with external threads, so that no matter the screw rod is used for locking or removing, at least three different types of operation selections are provided, and the convenience of locking and removing the screw rod is improved.

Description

Screw structure

Technical Field

The utility model relates to a fastener, in particular to a screw structure.

Background

Screws are a common type of fastener, the primary function of which is to connect two objects, or to fix the position of an object. The screw is typically removable or re-tightened at will without compromising its efficiency.

The screw comprises a screw head and a screw rod arranged on the screw head, wherein the screw head can be sleeved and rotated by a wrench when the screw head is hexagonal, the screw head can be inserted and driven by a hexagonal wrench when the screw head is provided with a hexagonal groove, and the screw rod is provided with threads, so that the screw can be tightly locked with a screw cap (nut) or other objects by using a screw mechanism.

However, in the case of the locking operation of the screw, since the screw head has only one design, the screw can be locked by only a single specific tool, which is inconvenient for the locking operation of the screw, particularly when the screw with a plurality of different screw head designs is used for construction, the inconvenience of the constructor in carrying the tool and the construction is more remarkable. On the other hand, in the case of screw removing operation, since the screw head has only one design, the screw can be removed only by a single specific tool, which is inconvenient for screw removing operation, especially when the screw head is damaged (usually broken teeth) due to improper operation, long-term unscrewing or screwing, the broken screw can be removed only by a specific tool, and the applicability is inconvenient.

Disclosure of Invention

The utility model aims to provide a screw structure which improves the convenience of locking and detaching screws.

To achieve the above object, the present utility model is a screw structure comprising: the screw head is provided with a first end face, a second end face opposite to the first end face, a first driving groove concavely arranged from the first end face towards the second end face and provided with a first groove bottom surface, a second driving groove concavely arranged from the first groove bottom surface towards the second end face, and a first driving outside arranged between the first end face and the second end face; and

the screw is arranged on the second end face of the screw head and is provided with external threads.

The utility model has the following effects: the screw is provided with the first driving groove, the second driving groove and the first driving outside, so that the screw has three different types of operation selections no matter the screw is locked or disassembled, the screw can be used corresponding to various driving tools, namely, the driving tools taken by a constructor can be locked or disassembled only according to one type of screw head design, thereby improving the convenience of locking and disassembling the screw.

Preferably, the first drive groove has a first drive ring wall having a minimum diameter and the second drive groove has a second drive ring wall having a maximum diameter, the maximum diameter of the second drive ring wall being less than or equal to the minimum diameter of the first drive ring wall.

Preferably, the first driving ring wall surface of the first driving groove is quincuncial or polygonal, and the second driving ring wall surface of the second driving groove is quincuncial or polygonal.

Preferably, the first driving outer part is provided with a first driving outer ring surface surrounded by a plurality of convex teeth, and the number of teeth of the convex teeth is a multiple of three or four.

Preferably, the screw head further comprises a second driving outer part arranged between the first end surface and the first driving outer part.

Preferably, the first driving outer portion has a first driving outer annulus having a minimum diameter, the second driving outer portion has a second driving outer annulus having a maximum diameter, and the maximum diameter of the second driving outer annulus is less than or equal to the minimum diameter of the first driving outer annulus.

Preferably, the screw head further comprises a driving groove concavely arranged from the first end face to the second end face and positioned outside the second driving part.

Preferably, the driving groove of the screw head is in a straight shape.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a perspective view of a first embodiment of the present utility model;

FIG. 2 is a top view of a first embodiment of the present utility model;

FIG. 3 is a perspective view of a second embodiment of the present utility model;

FIG. 4 is a top view of a second embodiment of the present utility model;

fig. 5 is a perspective view of a third embodiment of the present utility model.

The correspondence of the reference numerals with the components is as follows: screw head 10, first end face 11, second end face 12, first drive groove 13, first groove bottom face 131, first drive ring wall 132, minimum diameter 133, second drive groove 14, second drive ring wall 141, maximum diameter 142, first drive outer 15, first drive outer ring surface 151, minimum diameter 152, second drive outer 16, second drive outer ring surface 161, maximum diameter 162, drive groove 17, screw 20, and external thread 21.

Detailed Description

In order to facilitate the understanding of the present utility model, the following description is provided with reference to the drawings and examples.

Before the detailed description is set forth, it is noted that in the following description, like components and part names are denoted by the same reference numerals.

Referring to fig. 1 and 2, a screw structure according to a first embodiment of the present utility model is mainly formed by integrally forming a screw head 10 and a screw rod 20, wherein:

the screw head 10 has a first end face 11, a second end face 12 opposite to the first end face 11, a first driving groove 13 concavely provided from the first end face 11 toward the second end face 12 and having a first groove bottom face 131, a second driving groove 14 concavely provided from the first groove bottom face 131 toward the second end face 12, and a first driving outer portion 15 provided between the first end face 11 and the second end face 12; in this embodiment, the first driving groove 13 has a first driving ring wall 132, the first driving ring wall 132 has a minimum diameter 133, the second driving groove 14 has a second driving ring wall 141, the second driving ring wall 141 has a maximum diameter 142, and the maximum diameter 142 of the second driving ring wall 141 is smaller than (or equal to) the minimum diameter 133 of the first driving ring wall 132; in addition, the first driving ring wall 132 of the first driving groove 13 is quincuncial for driving a wrench or a screwdriver with a quincuncial driving portion, but not limited thereto, the first driving ring wall 132 may be polygonal, and may be a multiple of three or four; the second driving ring wall 141 of the second driving groove 14 has a hexagonal shape for driving a wrench or a screwdriver having a hexagonal driving portion, but not limited thereto, the second driving ring wall 141 may have a multiple of three or four or a quincuncial shape; furthermore, the first driving outer portion 15 has a first driving outer ring surface 151 surrounded by twelve teeth for driving the sleeve with the inner twelve-angle driving slot, but not limited thereto, the number of teeth of the first driving outer portion 15 may be three or four, and may be a polygonal shape.

The screw 20 is arranged on the second end face 12 of the screw head 10 and is provided with an external thread 21; in the present embodiment, the external thread 21 is right-handed, so that the screw can be locked when the screw is rotated clockwise, but the external thread 21 is not limited thereto, and the external thread 21 can be left-handed.

The above-mentioned structures and configurations of the main parts of the first embodiment of the present utility model have at least the following effects:

firstly, the convenience of locking and dismounting the screw is improved. In particular, the first driving slot 13 with a quincuncial shape, the second driving slot 14 with a hexagonal shape and the first driving outer part 15 with a dodecagonal shape are arranged on the screw head 10, so that when the locking operation or the dismounting operation is performed, a constructor only needs to take a wrench (or a screwdriver head) with a quincuncial driving part or a wrench (or a screwdriver head) with a hexagonal driving part or a sleeve with an inner dodecagonal driving slot to drive the screw head 10 to rotate, and therefore, the screw has three different types of operation options no matter when the locking operation or the dismounting operation is performed, so that the screw can be used corresponding to various driving tools, namely, the driving tool taken by the constructor only needs to conform to one type of screw head design, and the locking operation or the dismounting operation of the screw is performed, thereby improving the convenience of locking and dismounting of the screw.

Secondly, the easiness of locking and dismounting the screw is improved. Because the first driving groove 13 with a quincuncial shape, the second driving groove 14 with a hexagonal shape and the first driving outer part 15 with a dodecagonal shape are arranged on the screw head 10, a constructor can simultaneously take two driving tools when in locking or removing operation, one driving tool is inserted into the first driving groove 13 or the second driving groove 14, the other driving tool is sleeved on the first driving outer part 15, and then the two driving tools are simultaneously pulled or driven, so that the screw bears the driving force exerted by the two driving tools at the same time.

Referring to fig. 3 and 4, a screw structure according to a second embodiment of the present utility model is different from the first embodiment in that:

the screw head 10 further comprises a second driving outer portion 16 arranged between the first end face 11 and the first driving outer portion 15; in this embodiment, the first driving outer portion 15 has a first driving outer annulus 151 with a dodecagonal shape, the first driving outer annulus 151 has a minimum diameter 152, the second driving outer portion 16 has a second driving outer annulus 161 with a hexagonal shape, the second driving outer annulus 161 has a maximum diameter 162, and the maximum diameter 162 of the second driving outer annulus 161 is smaller than (or equal to) the minimum diameter 152 of the first driving outer annulus 151; accordingly, the second embodiment provides four different types of operation options, which facilitates the locking and the removal of the screw.

In addition, in the second embodiment of the present utility model, the first driving outer portion 15 is particularly disposed between the second driving outer portion 16 and the screw 20, and the maximum diameter 162 of the second driving outer ring surface 161 is smaller than the minimum diameter 152 of the first driving outer ring surface 151, so that when the driving tool is sleeved on the second driving outer portion 16, the driving tool can be supported on the first driving outer portion 15, so that the driving tool can be combined on the second driving outer portion 16 more easily, and accordingly, the design of the first driving outer portion 15 can be used as a driving tool, and the driving tool can be combined on the second driving outer portion 16 more reliably and accurately.

Referring to fig. 5, a third embodiment of the present utility model provides a screw structure, which is different from the second embodiment in that:

the screw head 10 further comprises a driving groove 17 concavely arranged from the first end face 11 towards the second end face 12 and positioned at the second driving outer portion 16; in the present embodiment, the driving groove 17 of the screw head 10 is in a shape of a Chinese character 'i', but not limited thereto, and may be in a cross shape, so as to add and provide another driving option.

The present utility model is not limited to the above-mentioned embodiments, but is not limited to the above-mentioned embodiments, and any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical matters of the present utility model can be made by those skilled in the art without departing from the scope of the present utility model.

Claims (8)

1. A screw structure, comprising:

the screw head is provided with a first end face, a second end face opposite to the first end face, a first driving groove concavely arranged from the first end face towards the second end face and provided with a first groove bottom surface, a second driving groove concavely arranged from the first groove bottom surface towards the second end face, and a first driving outside arranged between the first end face and the second end face; and

the screw is arranged on the second end face of the screw head and is provided with external threads.

2. The screw structure of claim 1, wherein the first drive groove has a first drive ring wall having a minimum diameter and the second drive groove has a second drive ring wall having a maximum diameter, the maximum diameter of the second drive ring wall being less than or equal to the minimum diameter of the first drive ring wall.

3. The screw structure of claim 2, wherein the first driving ring wall of the first driving groove is quincuncial or polygonal, and the second driving ring wall of the second driving groove is quincuncial or polygonal.

4. The screw structure of claim 1, wherein the first driving outer portion has a first driving outer ring surface surrounded by a plurality of teeth, and the number of teeth of the teeth is a multiple of three or four.

5. The screw structure of claim 1, wherein the screw head further comprises a second drive exterior disposed between the first end face and the first drive exterior.

6. The screw structure of claim 5, wherein the first drive outer portion has a first drive outer annulus having a minimum diameter, the second drive outer portion has a second drive outer annulus having a maximum diameter, and the maximum diameter of the second drive outer annulus is less than or equal to the minimum diameter of the first drive outer annulus.

7. The screw structure of claim 5, wherein the screw head further comprises a drive groove recessed from the first end face toward the second end face and located outside the second drive.

8. The screw structure according to claim 7, wherein the driving groove of the screw head is in a straight shape.