CN216407434U

CN216407434U - Anti-loosening screw for hardware

Info

Publication number: CN216407434U
Application number: CN202123223919.1U
Authority: CN
Inventors: 王会泽; 王会君; 金洪山
Original assignee: Dongguan Lingmao Industrial Co ltd
Current assignee: Dongguan Lingmao Industrial Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-04-29
Anticipated expiration: 2031-12-21

Abstract

The utility model belongs to the technical field of screws, and particularly relates to a hardware anti-loosening screw, wherein a movable groove is arranged inside a screw head, a limiting insertion rod is arranged inside the movable groove, a baffle ring is welded on the surface of the outer side of the lower end of the limiting insertion rod, which is positioned inside the movable groove, a compression spring is sleeved outside the limiting insertion rod, the lower end of the compression spring is welded and fixed with the upper surface of the baffle ring, a linkage ring is welded at the upper end of the limiting insertion rod, and a metal foil baffle plate is sleeved outside a screw rod; when being convenient for the screw rod to close soon and seting up the screw hole on equipment surface, the inside of activity groove is withdrawed to spacing inserted bar under the effect of metal forming baffle, takes out the metal forming baffle after the screw rod is twisted completely in the screw hole, and spacing inserted bar resets under the effect of fender ring and compression spring this moment for spacing inserted bar inserts in the locating hole that equipment surface was seted up, thereby is convenient for fix a position the screw that closes soon, avoids the screw to tighten the back not hard up.

Description

Anti-loosening screw for hardware

Technical Field

The utility model belongs to the technical field of screws, and particularly relates to a screw for preventing hardware from loosening.

Background

The screw is a tool for fastening the parts of the object step by utilizing the physics and mathematical principles of the inclined circular rotation and friction of the object. Screws are a common term for fasteners; widely used in machinery, electrical appliances and buildings. Generally, the material is metal or plastic, and is cylindrical, and the grooves with the concave and convex surfaces are called as screw threads. Because the vibration of equipment leads to the screw to become flexible easily after traditional screw installation, leads to the fixed poor problem of firm nature of equipment.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a screw for preventing hardware from loosening.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a locking screw that moves of hardware, includes the screw rod to and screw rod upper end integrated into one piece's pin fin, the inside of pin fin is provided with movable groove, the internally mounted in movable groove has spacing inserted bar, the outside skin weld that spacing inserted bar lower extreme is located movable inslot portion has the fender ring, compression spring has been cup jointed to the outside of spacing inserted bar, and compression spring's lower extreme and the last surface weld who keeps off the ring are fixed, the upper end welding of spacing inserted bar has the link ring, the metal forming baffle has been cup jointed to the outside of screw rod, the edge integrated into one piece of metal forming baffle has the brace, the surface of metal forming baffle has been seted up and has been torn the kerve.

According to the preferable technical scheme of the anti-loosening screw for the hardware, the sealing ring is arranged on the lower surface of the nail head, the buffer cavity is formed inside the sealing ring, the limiting convex ring is integrally formed on the upper surface of the sealing ring, the limiting groove is formed in the lower surface of the nail head, and the limiting convex ring is installed inside the limiting groove.

According to the preferable technical scheme of the screw for preventing the hardware from loosening, the section of the sealing ring is a quarter circle.

According to the preferable technical scheme of the anti-loosening screw for the hardware, two lifting strips are integrally formed on the surface of the metal foil baffle, the two lifting strips are located at two ends of the diameter of the metal foil baffle, and the connecting line of the two lifting strips is perpendicular to the tearing groove.

As a preferable technical scheme of the anti-loosening screw for hardware products, six movable grooves are formed in the nail head, and the six movable grooves are distributed in an annular shape at equal intervals.

As the preferable technical scheme of the anti-loosening screw for the hardware, the cross section of the linkage ring is in an isosceles trapezoid shape.

Compared with the prior art, the utility model has the beneficial effects that:

1. through the inside movable groove that sets up of pin fin, through the inside of keeping off ring and compression spring movable mounting at the movable groove of spacing inserted bar, the metal forming baffle has been cup jointed to the screw rod outside simultaneously, be convenient for the screw rod close soon when seting up the screw hole on the equipment surface, the inside of activity groove is withdrawed to spacing inserted bar under the effect of metal forming baffle, take out the metal forming baffle after the screw rod twists the screw hole completely, spacing inserted bar resets under the effect of keeping off ring and compression spring this moment, make spacing inserted bar insert in the locating hole that the equipment surface was seted up, thereby be convenient for fix a position the screw that closes soon, it is not hard up to avoid the screw to screw up the back, metal forming baffle edge integrated into one piece's lifting bar simultaneously, and the foil tearing groove of seting up on the metal forming baffle surface, be convenient for through outer pulling lifting bar, make the metal forming baffle separate along tearing the groove.

2. Through the sealing ring that pin fin lower surface set up for when screw and equipment revolve, airtight through the sealing ring between pin fin and the equipment, the buffering cavity that sets up in the sealing ring has increased the shock-absorbing capacity of sealing ring simultaneously, and the spacing bulge loop of sealing ring upper surface integrated into one piece installs in the spacing recess that the pin fin lower surface was seted up simultaneously, thereby is convenient for fix a position the sealing ring.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is a schematic view of a metal foil baffle according to the present invention;

in the figure: 1. a screw; 2. a nail head; 3. a movable groove; 4. a limiting inserted rod; 5. a baffle ring; 6. a compression spring; 7. a link ring; 8. a metal foil baffle; 9. lifting the pull strip; 10. tearing and pulling the groove; 11. a seal ring; 12. a buffer cavity; 13. a limit convex ring; 14. and a limiting groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides a technical solution: a hardware anti-loosening screw comprises a screw rod 1 and a screw head 2 integrally formed at the upper end of the screw rod 1, wherein a movable groove 3 is formed inside the screw head 2, a limiting inserting rod 4 is installed inside the movable groove 3, a baffle ring 5 is welded on the surface of the outer side, located inside the movable groove 3, of the lower end of the limiting inserting rod 4, a compression spring 6 is sleeved outside the limiting inserting rod 4, the lower end of the compression spring 6 is welded and fixed with the upper surface of the baffle ring 5, a linkage ring 7 is welded at the upper end of the limiting inserting rod 4, a metal foil baffle plate 8 is sleeved outside the screw rod 1, a lifting strip 9 is integrally formed at the edge of the metal foil baffle plate 8, a tearing groove 10 is formed in the surface of the metal foil baffle plate 8, two lifting strips 9 integrally formed on the surface of the metal foil baffle plate 8 are arranged, the two lifting strips 9 are located at the two ends of the diameter of the metal foil baffle plate 8, and the connecting line of the two lifting strips 9 is perpendicular to the tearing groove 10, six movable grooves 3 are formed in the nail head 2, the six movable grooves 3 are distributed in an annular shape at equal intervals, and the cross section of the linkage ring 7 is in an isosceles trapezoid shape.

In the embodiment, the movable groove 3 arranged in the nail head 2 is movably arranged in the movable groove 3 through the limit inserted bar 4, the baffle ring 5 and the compression spring 6, meanwhile, the metal foil baffle 8 is sleeved outside the screw rod 1, so that when the screw rod 1 is screwed in a screw hole formed in the surface of the equipment, the limiting inserted rod 4 is retracted into the movable groove 3 under the action of the metal foil baffle 8, when the screw 1 is completely screwed into the screw hole and the metal foil baffle 8 is pulled out, the limit inserted bar 4 is reset under the action of the baffle ring 5 and the compression spring 6, so that the limit inserted bar 4 is inserted into a positioning hole arranged on the surface of the equipment, thereby being convenient for positioning the screwed screw and avoiding the screw from loosening after being screwed down, and meanwhile, the edge of the metal foil baffle plate 8 is provided with the lifting strip 9 which is integrally formed, and the tearing groove 10 is formed in the surface of the metal foil baffle 8, so that the metal foil baffle 8 is separated along the tearing groove 10 through the external pulling lifting strip 9.

Specifically, the lower surface of the nail head 2 is provided with a sealing ring 11, a buffer cavity 12 is arranged inside the sealing ring 11, a limiting convex ring 13 is integrally formed on the upper surface of the sealing ring 11, a limiting groove 14 is formed in the lower surface of the nail head 2, the limiting convex ring 13 is arranged inside the limiting groove 14, and the cross section of the sealing ring 11 is a quarter circle. In this embodiment, through the sealing ring 11 of 2 lower surfaces of pin fin, make screw and equipment when rotatory, airtight through sealing ring 11 between pin fin 2 and the equipment, the buffering cavity 12 that sets up in the sealing ring 11 has increased sealing ring 11's shock-absorbing capacity simultaneously, and simultaneously sealing ring 11 upper surface integrated into one piece's spacing bulge loop 13 is installed in the spacing recess 14 that 2 lower surfaces of pin fin were seted up, thereby is convenient for fix a position sealing ring 11.

The working principle and the using process of the utility model are as follows: during the use, 8 covers the metal forming baffle in the outside of screw rod 1, when screw rod 1 closes at the equipment surface soon, earlier offer the hole with 4 adaptations of spacing inserted bar on the equipment surface, when screw rod 1 closes in the screw soon, metal forming baffle 8 at first with the surface contact of equipment, metal forming baffle 8 takes the tip removal of spacing inserted bar 4 simultaneously, make spacing inserted bar 4 take compression spring 6 to compress through keeping off ring 5, when pin fin 2 and metal forming baffle 8 hug closely, carry brace 9 and draw outward through outside pliers, make metal forming baffle 8 separate along tearing the broach groove 10, spacing inserted bar 4 inserts the downthehole that the equipment surface was seted up under the effect of fender ring 5 and compression spring 6 this moment.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a locking screw that moves of hardware, includes screw rod (1) to and screw rod (1) upper end integrated into one piece's pin fin (2), its characterized in that: the novel nail head structure is characterized in that a movable groove (3) is arranged inside the nail head (2), a limiting inserting rod (4) is arranged inside the movable groove (3), a baffle ring (5) is welded on the surface of the outer side, located inside the movable groove (3), of the lower end of the limiting inserting rod (4), a compression spring (6) is sleeved outside the limiting inserting rod (4), the lower end of the compression spring (6) is fixed to the upper surface of the baffle ring (5) in a welded mode, a linkage ring (7) is welded at the upper end of the limiting inserting rod (4), a metal foil baffle (8) is sleeved outside the screw rod (1), a lifting strip (9) is integrally formed at the edge of the metal foil baffle (8), and a tearing groove (10) is formed in the surface of the metal foil baffle (8).

2. The anti-loosening screw for hardware according to claim 1, is characterized in that: the lower surface of the nail head (2) is provided with a sealing ring (11), a buffer cavity (12) is arranged inside the sealing ring (11), a limiting convex ring (13) is integrally formed on the upper surface of the sealing ring (11), a limiting groove (14) is formed in the lower surface of the nail head (2), and the limiting convex ring (13) is arranged inside the limiting groove (14).

3. The anti-loosening screw for hardware according to claim 2, is characterized in that: the section of the sealing ring (11) is a quarter circle.

4. The anti-loosening screw for hardware according to claim 1, is characterized in that: the lifting strips (9) integrally formed on the surface of the metal foil baffle (8) are arranged in two numbers, the two lifting strips (9) are located at two ends of the diameter of the metal foil baffle (8), and the connecting line of the two lifting strips (9) is perpendicular to the tearing groove (10).

5. The anti-loosening screw for hardware according to claim 1, is characterized in that: the number of the movable grooves (3) arranged in the nail head (2) is six, and the six movable grooves (3) are distributed in an annular shape at equal intervals.

6. The anti-loosening screw for hardware according to claim 1, is characterized in that: the cross section of the linkage ring (7) is isosceles trapezoid.