CN211059174U

CN211059174U - Large flat head terrace screw

Info

Publication number: CN211059174U
Application number: CN201921722385.7U
Authority: CN
Inventors: 屠乾宏; 林乾来; 陈光赢
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 big flat head balcony screw relates to the technical field of connecting piece, including big flat head, set up on big flat head and on the lateral wall set up the screwed screw rod, the cover is equipped with the anti-rotation subassembly of contradicting with big flat head lateral wall on the screw rod, prevent that rotation subassembly includes that the cover is established on the screw rod and contradicts and be the annular anti-rotation ring of circle, set up the barb on the lateral wall of keeping away from big flat head one side at the anti-rotation ring with big flat head lateral wall. The utility model discloses an barb on the anti-rotating ring is supported tightly on panel, has reduced the screw because the not hard up probability of vibration to this has improved the fixed effect of screw.

Description

Large flat head terrace screw

Technical Field

The utility model belongs to the technical field of the technique of connecting piece and specifically relates to a big flat head balcony screw is related to.

Background

The screw is a widely applied fastener, is a tool for fastening machine parts of the device step by utilizing the physics and mathematical principles of the inclined plane circular rotation and the friction of the object, and is a common invention in the production and the life of people for thousands of years; the large flat head screw is one of the screws, and is generally used for fixedly connecting plates and the like.

However, after the large flat-head screw is used for locking the device, the large flat-head screw has poor anti-loosening performance and is easy to rotate under the action of vibration and external force, so that the fixing effect of the screw is reduced, and even the fixing effect is lost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a big flat-head deck screw has reduced the screw because the vibration and not hard up probability to this has improved the fixed effect of screw.

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

the utility model provides a big flat head balcony screw, includes big flat head, sets up on big flat head and on the lateral wall set up the screwed screw rod, the cover is equipped with the subassembly that prevents changeing of contradicting with big flat head lateral wall on the screw rod, prevent changeing the subassembly including the cover establish on the screw rod and conflict and be the annular anti-rotating ring of circle, set up the barb on the lateral wall of keeping away from big flat head one side at the anti-rotating ring with big flat head lateral wall.

Through adopting above-mentioned technical scheme, establish the anti-rotating ring cover on the screw rod, then on screwing up the screw rod to the panel that needs the fastening for the barb supports tightly on panel, supports tightly on panel through the barb on the anti-rotating ring, has reduced the screw because vibration and not hard up probability, with this fixed effect that has improved the screw.

Preferably, the lateral wall of the large flat head, which is close to one side of the anti-rotation ring, is provided with two positioning grooves at intervals, and the lateral wall of the anti-rotation ring, which is close to one side of the large flat head, is provided with positioning columns which are matched with the positioning grooves in an inserting manner.

Through adopting above-mentioned technical scheme, peg graft the reference column and arrive on the constant head tank to this comes to install the anti-rotating ring on big flat head, thereby so that the dismouting of anti-rotating ring, simultaneously can make the anti-rotating ring alone easily, the anti-rotating ring is in the same place with big flat head fixed mounting moreover, has reduced and has produced relative pivoted probability between big flat head and the anti-rotating ring, has improved the locking effect of anti-rotating ring to the screw with this.

Preferably, a connecting column is arranged between the large flat head and the screw, a thread-shaped knurl is arranged on the outer side wall of the connecting column around the axis array of the connecting column, and the anti-rotation ring is sleeved on the connecting column.

Through adopting above-mentioned technical scheme, through the setting of annular knurl, increased the frictional force between screw rod and the panel, reduced the not hard up probability of screw rod.

Preferably, the thread of the screw is provided with a sawtooth-shaped cutting line groove in an array manner.

By adopting the technical scheme, the material of the plate is cut by the cutting line groove after the screw rod is driven into the plate through the arrangement of the cutting line groove, so that the screw is easier to be driven; while guiding the chips to facilitate their discharge.

Preferably, the cutting line grooves are distributed spirally.

Through adopting above-mentioned technical scheme, through the setting of spiral helicine secant groove, further improved piece exhaust convenience.

Preferably, the side wall of the large flat head, which is far away from the screw rod, is a spherical surface, a quincuncial groove is formed in the spherical surface, and a wear-resistant layer is arranged on the side wall of the quincuncial groove.

Through adopting above-mentioned technical scheme, through the setting of skid resistant course for when use instrument is pegged graft the plum blossom groove and is twisted the screw, reduced the wearing and tearing of instrument to the plum blossom groove, improved the life in plum blossom groove.

Preferably, one end of the screw, which is far away from the large flat head, is provided with a conical nail head, and the side wall of the nail head is provided with chip removal grooves in an array around the circumference of the axis of the screw.

Through adopting above-mentioned technical scheme, through the setting of conical pin fin and chip groove for after the screw attacks panel, the likepowder piece behind the smear metal is discharged more easily, thereby has reduced the effort of screw to panel, has reduced the probability of panel fracture.

Preferably, one end of the positioning column, which is close to the large flat head, is provided with a chamfer.

Through adopting above-mentioned technical scheme, through the setting of chamfer, lead when the constant head tank is pegged graft to the reference column to the installation of reference column.

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

1. the barbs on the anti-rotation rings are tightly abutted against the plate, so that the probability of loosening of the screw due to vibration is reduced, and the fixing effect of the screw is improved;

2. through the matching of the positioning column and the positioning groove, the probability of relative rotation between the large flat head and the anti-rotation ring is reduced, so that the anti-loosening effect of the anti-rotation ring on the screw is improved;

3. through the arrangement of the cutting groove, the material of the plate is cut after the screw is tapped into the plate, so that the screw is easier to tap; simultaneously guiding the scraps to facilitate the discharge of the scraps;

4. through the setting of skid resistant course for when use tool pegged graft the plum blossom groove and twist the screw, reduced the wearing and tearing of instrument to the plum blossom groove, improved the life of plum blossom groove.

Drawings

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

FIG. 2 is a partial exploded view of the present invention, showing primarily the anti-rotation assembly;

fig. 3 is an exploded view of the present invention, mainly showing the quincunx groove of the anti-rotation component.

Reference numerals: 10. a large flat head; 11. connecting columns; 12. knurling; 13. a screw; 2. an anti-rotation component; 21. an anti-rotation ring; 22. a barb; 30. positioning a groove; 31. a positioning column; 32. chamfering; 40. cutting a wire groove; 41. a nail head; 42. a chip groove; 50. a plum blossom groove; 51. and a wear-resistant layer.

Detailed Description

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

The utility model provides a big flat head 10 balcony screw, refers to fig. 1, including big flat head 10, fixed mounting spliced pole 11 on big flat head 10, offer around spliced pole 11 axis array on spliced pole 11's the lateral wall and be the annular knurl 12 of screw form, annular knurl 12 has increased the frictional force between screw 13 and the panel, has reduced the not hard up probability of screw 13.

Referring to fig. 2, an anti-rotation component 2 which is abutted against the side wall of the large flat head 10 is sleeved on a connecting column 11, the anti-rotation component 2 comprises an anti-rotation ring 21 and an agnail 22, the anti-rotation ring 21 is sleeved on the connecting column 11, the anti-rotation ring 21 is abutted against the side wall of the large flat head 10 and is in a ring shape, two positioning grooves 30 are arranged on the side wall of the large flat head 10 close to one side of the anti-rotation ring 21 at intervals, and a positioning column 31 which is in inserted connection with the positioning grooves 30 is fixedly installed on the side wall of the anti-; the barb 22 is fixedly arranged on the side wall of the side of the anti-rotation ring 21 far away from the large flat head 10.

A screw 13 is fixedly arranged at one end of the connecting column 11 far away from the large flat head 10, and threads are fixedly arranged on the outer side wall of the screw 13; establish the spliced pole 11 with the anti-rotating ring 21 cover on, peg graft the constant head tank 30 with reference column 31 on next to this installs anti-rotating ring 21 on big flat head 10, then on screwing up the panel that needs the fastening with screw 13, make barb 22 support tightly on panel, reduced the screw because the vibration not hard up probability.

A chamfer 32 is arranged at one end of the positioning column 31 close to the large flat head 10, and the chamfer 32 guides when the positioning column 31 is inserted into the positioning groove 30 so as to facilitate the installation of the positioning column 31; zigzag cutting grooves 40 are formed in the threads of the screw 13 in an array mode, the cutting grooves 40 are distributed in a spiral mode, and the cutting grooves 40 cut the material of the plate after the screw 13 taps the plate, so that the screw 13 is easier to tap.

Referring to fig. 3, a conical nail head 41 is fixedly mounted at one end of the screw 13, which is far away from the large flat head 10, chip removal grooves 42 are formed in the side wall of the nail head 41 in an array around the axis circumference of the screw 13, and after the chip removal grooves 42 are screwed into a plate, the cut powder chips are more easily discharged, so that the acting force of the nail head 41 on the plate is reduced; the side wall of the large flat head 10 far away from the connecting column 11 is a spherical surface, the spherical surface is provided with a plum blossom groove 50, the inner side wall of the plum blossom groove 50 is plated with a wear-resistant layer 51, the wear-resistant layer 51 is a diamond coating, and the wear of the tool on the plum blossom groove 50 is reduced by the wear-resistant layer 51.

The working principle of the embodiment is as follows:

establish the spliced pole 11 with the retaining ring 21 cover on, peg graft the constant head tank 30 with reference column 31 on next to this with the retaining ring 21 installation arrive big flat head 10 on, then screw up the screw rod 13 on the panel that needs the fastening, make barb 22 support tightly on panel, reduced the screw because the not hard up probability of vibration, improved the locking effect of retaining ring 21 to the screw with this.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a big flat head balcony screw which characterized in that: including big flat head (10), set up on big flat head (10) and be provided with screw rod (13) of external screw thread on the lateral wall, the cover is equipped with the anti-rotation subassembly (2) of contradicting with big flat head (10) lateral wall on screw rod (13), prevent changeing subassembly (2) including the cover establish on screw rod (13) and conflict and be the annular anti-rotation ring (21) of circle with big flat head (10) lateral wall, set up barb (22) on the lateral wall of keeping away from big flat head (10) one side at anti-rotation ring (21).

2. The large flathead deck screw of claim 1, wherein: big flat head (10) are close to spacing on the lateral wall of anti-rotating ring (21) one side and are equipped with two constant head tanks (30), be provided with on the lateral wall of anti-rotating ring (21) one side with constant head tank (30) grafting complex reference column (31).

3. The large flathead deck screw of claim 1, wherein: be provided with spliced pole (11) between big flat head (10) and screw rod (13), be provided with annular knurl (12) that are the screw thread form around spliced pole (11) axis array on the lateral wall of spliced pole (11), stop collar (21) cover is established on spliced pole (11).

4. The large flathead deck screw of claim 1, wherein: the thread of the screw (13) is provided with zigzag secant grooves (40) in an array manner.

5. The large flathead deck screw of claim 4, wherein: the cutting grooves (40) are distributed in a spiral shape.

6. The large flathead deck screw of claim 1, wherein: the side wall of one side, away from the screw rod (13), of the large flat head (10) is a spherical surface, a quincuncial groove (50) is formed in the spherical surface, and a wear-resistant layer (51) is arranged on the side wall of the quincuncial groove (50).

7. The large flathead deck screw of claim 1, wherein: one end of the screw rod (13) far away from the large flat head (10) is provided with a conical nail head (41), and chip removal grooves (42) are formed in the side wall of the nail head (41) in a circumferential array around the axis of the screw rod (13).

8. A large flat head (10) deck screw according to claim 2, characterized in that: and one end of the positioning column (31) close to the large flat head (10) is provided with a chamfer (32).