CN211059169U

CN211059169U - Full-thread screw

Info

Publication number: CN211059169U
Application number: CN201921721514.0U
Authority: CN
Inventors: 屠乾宏; 薛建东; 谢忠超
Original assignee: Shanghai Hongting Fastener Manufacturing Co ltd
Current assignee: Shanghai Hongting Fastener Manufacturing Co ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-07-21
Anticipated expiration: 2029-10-11

Abstract

The utility model relates to a full thread screw relates to hardware fastening's technical field, double-screw bolt including spiral shell head and full thread, the spiral shell head is kept away from the cross slot has been seted up to double-screw bolt one end, the cross slot with the lateral wall intercommunication of spiral shell head. The utility model discloses a borrow the instrument and violently insert in the horizontal groove, can twist out the double-screw bolt to realize dismantling.

Description

Full-thread screw

Technical Field

The utility model belongs to the technical field of the technique of hardware fastening spare and specifically relates to a full thread screw is related to.

Background

The structure of the full-thread screw comprises a screw head and a full-thread stud, the full-thread screw commonly used at present is a standard part of a fastener, and the cross section of the screw head of the full-thread screw is of a regular hexagon or regular octagon structure.

The screw is usually tightened or loosened by using a wrench, and a clamping part of the wrench is clamped on two parallel side walls of the outer side wall of the screw head, so that when the screw is tightened or loosened, the torque of the wrench is completely applied on the two parallel side walls of the outer side wall of the screw head, and if the torque is too strong or too hard, the edges and corners of the outer side wall of the screw head are worn, so that the service life of the screw is shortened. If the edges and corners of the outer side wall of the screw head are seriously abraded, the wrench can slip, and the screw cannot be screwed out.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a full thread screw violently inserts in the horizontal groove through borrowing the instrument, can twist out the double-screw bolt to realize dismantling.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a full thread screw, includes spiral shell head and full threaded double-screw bolt, the spiral shell head is kept away from double-screw bolt one end has seted up the cross slot, the cross slot with the lateral wall intercommunication of spiral shell head.

Through adopting above-mentioned technical scheme, after the spiral shell head wearing and tearing, the staff can borrow the horizontal pole and violently insert in the horizontal groove, then rotates the horizontal pole and can rotate the spiral shell head, can twist out the double-screw bolt to realize dismantling.

Preferably, the groove wall of the transverse groove is provided with a convex pattern.

Through adopting above-mentioned technical scheme, improve the roughness of horizontal groove cell wall, improve the frictional force between instrument and the horizontal groove, reduce the probability of skidding.

Preferably, the screw head is close to the periphery of one end of the stud and is provided with a convex arc ring, and the bottom of the transverse groove is parallel to the arc surface of the convex arc ring.

By adopting the technical scheme, the convex arc ring increases the contact area of the screw head and increases the compression range of the screw head; when the tool is not horizontally clamped in the transverse groove, if the groove bottom of the transverse groove is in a convex arc shape, the contact area between the transverse rod and the groove wall of the transverse groove can be increased when the transverse rod is inclined, and the slipping probability is reduced.

Preferably, the stud sleeve is provided with an elastic waterproof ring, and the outer diameter of the waterproof ring is smaller than the diameter of the convex arc ring.

Through adopting above-mentioned technical scheme, can play the effect of stopping the water circulation for water can not contact the double-screw bolt, plays the protecting effect, reduces rusty probability.

Preferably, the screw head and the side connected with the stud are provided with an accommodating cavity, the accommodating cavity is in a circular truncated cone shape, and the outer diameter of the waterproof ring is within the diameter range of the middle area of the accommodating cavity.

Through adopting above-mentioned technical scheme for waterproof ring partly can be extruded into and hold the chamber, reduces the outstanding volume of spiral shell head, improves pleasing to the eye degree.

Preferably, one side, deviating from the stud, of the screw head is provided with a sinking groove, the transverse groove penetrates through the sinking groove, and the bottom of the sinking groove is provided with a cross groove.

Through adopting above-mentioned technical scheme, after the edges and corners wearing and tearing, the staff also can come the unscrewing through cross recess, convenient to detach.

Preferably, the groove bottom of the groove on one straight line in the cross-shaped grooves is provided with a straight groove.

By adopting the technical scheme, a detachable method is further added, and the applicability is improved.

Preferably, the included angle between the groove wall of the straight groove and the groove wall of the cross groove is an obtuse angle.

By adopting the technical scheme, the straight screwdriver with various different models can be used.

Preferably, the straight groove and the cross groove are both provided with glue layers.

Through adopting above-mentioned technical scheme, improve the friction of the lateral wall of line groove and cross groove, and play the effect of abrasionproof decreases.

To sum up, the utility model discloses a beneficial technological effect does:

1. the stud can be screwed out by transversely inserting the stud into the transverse groove by using a tool, so that the disassembly is realized;

2. through the arrangement of the straight groove and the cross groove, a method for screwing out the screw head is added, and the screw head is convenient to disassemble.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of the present invention;

fig. 2 is a cross-sectional view of the present invention.

Reference numerals: 1. a screw head; 11. sinking a groove; 12. a cross groove; 13. a straight slot; 14. a glue layer; 15. a transverse groove; 151. a relief pattern; 2. a stud; 21. a waterproof ring; 3. a convex arc ring; 31. a receiving cavity.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model provides a full thread screw, refers to fig. 1, including spiral shell head 1 and full-thread double-screw bolt 2, spiral shell head 1 and double-screw bolt 2 fixed connection, spiral shell head 1 is provided with convex arc ring 3 near the week side integrated into one piece of double-screw bolt 2 one end, and convex arc ring 3 deviates from double-screw bolt 2 one side and is convex arc, and the cross sectional area of convex arc ring 3 is greater than the cross sectional area of spiral shell head 1.

Referring to fig. 2, a sunken groove 11 is formed in the middle of one side of the screw head 1, which is far away from the stud 2, a cross groove 12 is formed in the bottom of the sunken groove 11, a straight groove 13 is formed in the bottom of one straight groove of the cross groove 12, and an included angle between the wall of the straight groove 13 and the wall of the cross groove 12 is an obtuse angle. The cross-shaped groove 12 and the straight groove 13 are arranged so that a worker can unscrew the screw with a screwdriver; and in order to reduce the abrasion, glue layers 14 are coated on the straight grooves 13 and the cross grooves 12.

A transverse groove 15 is formed in one end, far away from the stud 2, of the screw head 1, the transverse groove 15 penetrates through the sinking groove 11, and the transverse groove 15 is communicated with the side wall of the screw head 1. The groove wall of the transverse groove 15 is provided with a convex pattern 151 (see figure 1), and the groove bottom of the transverse groove 15 is parallel to the convex arc surface of the convex arc ring 3.

The screw head 1 is connected with one side of the stud 2 and is provided with an accommodating cavity 31, the accommodating cavity 31 is in a circular truncated cone shape, the stud 2 is sleeved with an elastic waterproof ring 21, and the outer diameter of the waterproof ring 21 is within the diameter range of the middle area of the accommodating cavity 31.

The working principle of the embodiment is as follows:

when the waterproof ring 21 is installed, the waterproof ring is sleeved on the stud 2 and then screwed in by using a spanner or a screwdriver.

When the screw head 1 is worn, the worker can screw out the straight groove 13 or the cross groove 12, or can screw out the cross groove by rotating the cross bar in the transverse groove 15.

The above description is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and for those skilled in the art, a plurality of improvements and decorations are not departed from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a full thread screw, includes screw head (1) and full thread double-screw bolt (2), its characterized in that: a transverse groove (15) is formed in one end, far away from the stud (2), of the screw head (1), and the transverse groove (15) is communicated with the side wall of the screw head (1).

2. A full-thread screw according to claim 1, wherein: the wall of the transverse groove (15) is provided with a convex pattern (151).

3. A full-thread screw according to claim 1, wherein: the screw head (1) is close to the peripheral side of one end of the stud (2) is provided with a convex arc ring (3), and the bottom of the transverse groove (15) is parallel to the arc surface of the convex arc ring (3).

4. A full-thread screw according to claim 3, wherein: the double-screw bolt (2) cover is equipped with waterproof ring (21) that have elasticity, the external diameter of waterproof ring (21) is less than the diameter of convex arc ring (3).

5. A full-thread screw according to claim 4, wherein: the screw head (1) and the side connected with the stud (2) are provided with an accommodating cavity (31), the accommodating cavity (31) is in a circular truncated cone shape, and the outer diameter of the waterproof ring (21) is in the diameter range of the middle area of the accommodating cavity (31).

6. A full-thread screw according to claim 1, wherein: the screw head (1) deviates from one side of the stud (2) is provided with a sinking groove (11), the transverse groove (15) penetrates through the sinking groove (11), and the bottom of the sinking groove (11) is provided with a cross groove (12).

7. A full-thread screw according to claim 6, wherein: the bottoms of the grooves on one straight line in the cross grooves (12) are provided with straight grooves (13).

8. A full-thread screw according to claim 7, wherein: the included angle between the groove wall of the straight groove (13) and the groove wall of the cross groove (12) is an obtuse angle.

9. A full-thread screw according to claim 7, wherein: the straight groove (13) and the cross groove (12) are both provided with glue layers (14).