CN211039328U

CN211039328U - Nylon head screw

Info

Publication number: CN211039328U
Application number: CN201921721459.5U
Authority: CN
Inventors: 屠乾宏; 林鹏起; 曹昌华
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: 2020-07-17
Anticipated expiration: 2029-10-11

Abstract

The utility model discloses a nylon head screw relates to fastener technical field, including screw rod, nut and nylon head, the nylon head sets up on the nut, and the nut is kept away from one of screw rod and is served and be provided with many bracing pieces that set up along screw rod length direction, and bracing piece evenly distributed is on same circumference. The utility model discloses have and prevent to take place relative rotation between nut and the nylon head, guarantee the screw in the use, can screw up and screw out's effect.

Description

Nylon head screw

Technical Field

The utility model relates to a fastener technical field, more specifically say, it relates to a nylon cap screw.

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.

At present, chinese patent with publication number CN208281324U discloses an anticorrosive screw with a nylon head, which comprises a screw rod, and a nut is arranged at the head of the screw rod, and is characterized in that a nylon tap is arranged outside the nut, a regular polygon groove is arranged in the nylon head, the regular polygon groove is engaged with the outer edge of the nut, and the nut is clamped in the regular polygon groove to form interference fit; the neck of the screw rod is provided with a vertical groove. The utility model discloses a set up the waterproof anticorrosion of buddhist nun tap outside the nut to the perpendicular capable recess of seting up at the screw rod neck is used for filling the plastic, and the sealed cross-section of punching the hole department plays waterproof anticorrosion's effect, increases the life of various steel sheet on the building.

The above prior art solutions have the following drawbacks: the nut joint forms interference fit, and the surplus of interference is less in the regular polygon recess of buddhist nun tap, and nylon head takes place relative rotation because of the expend with heat and contract with cold of nylon head and buddhist nun tap's elasticity easily with the joint structure of nut, leads to the screw to twist into at the in-process of screwing up and can't twist out at the in-process of twisting out the screw.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a nylon head screw, prevent to take place relative rotation between nut and the nylon head, guarantee the screw in the use, can screw up and screw out.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a nylon head screw, includes screw rod, nut and nylon head, the nylon head sets up on the nut, the nut is kept away from one of screw rod is served and is provided with many bracing pieces that set up along screw rod length direction, just bracing piece evenly distributed is on same circumference.

Through adopting above-mentioned technical scheme, make screw rod and nut earlier, the nylon tap is moulded plastics out to the mode of rethread injection moulding on the nut, the equal fixed connection of bracing piece on nylon head and the nut, when rotating the nylon tap, the nylon head passes through the nut and the bracing piece drives the screw rod rotates together, and the atress position is many, and the difficult phenomenon of skidding that leads to because of the nylon head expend with heat and contract with cold takes place to guarantee the screw in the use, can screw up smoothly and screw out.

The utility model discloses further set up to: and a first connecting rod and a second connecting rod which are mutually crossed are fixedly connected between every two adjacent supporting rods.

Through adopting above-mentioned technical scheme, be formed with stable triangle-shaped between bracing piece, head rod and the second connecting rod, strengthened the stability and the intensity of bracing piece, increased the area of nut with the first contact of nylon, share the effort of twisting when moving the buddhist nun tap to further consolidate the connection of buddhist nun tap and nut, prevent that buddhist nun tap and nut from taking place relative rotation.

The utility model discloses further set up to: the screw comprises a smooth section close to one end of the screw cap and a threaded section far away from one end of the screw cap; an oil storage tank is axially arranged in the smooth section, the oil storage tank is close to an oil inlet channel formed by extending out of the smooth section of the inclined angle at one end of the screw cap, an oil outlet formed by extending out of the smooth section of the inclined angle at one end of the screw cap is far away from the oil storage tank, and the oil outlet is close to the end part of the smooth section in the screw thread section.

Through adopting above-mentioned technical scheme, lubricating oil can flow to the screw thread section top of screw rod from the oil-out through oil feed passageway, oil storage tank during the use, later lubricating oil can flow along the screw thread of screw thread section to can lubricate the screw thread section from last to down, frictional resistance when reducing to twist the nylon head screw makes the nylon head screw tighten more easily.

The utility model discloses further set up to: the tail part of the thread section is arranged to be in a drill tail shape.

Through adopting above-mentioned technical scheme, be the tail portion setting of screw thread section on the screw rod and be the brill tail form, then need not supplementary processing, can directly set up on the material, can drill hole, tapping, locking on basic material, practice thrift operating time by a wide margin, reinforcing tough power of pulling out and holding power can not take place not hard up after long-time combination yet.

The utility model discloses further set up to: the screw thread section of the screw is provided with a chip removing groove, one end of the chip removing groove is communicated with the tail of the drill tail-shaped screw, and the other end of the chip removing groove is communicated with one end, far away from the smooth section, of the screw thread section.

Through adopting above-mentioned technical scheme, remove the piece discharge that the groove will bore tail form screw thread section afterbody and produce at drilling in-process, prevent that the piece from remaining in the downthehole that drills out, avoid its screwing up that influences the screw.

The utility model discloses further set up to: and one end of the screw rod, which is close to the screw cap, is provided with a rubber ring.

By adopting the technical scheme, the rubber ring plays a role in buffering in the process of screwing the screw, so that the screw is prevented from being excessively screwed into the material and damaging the material; and after the screw is fixed, the elasticity of rubber circle prevents effectively that the screw is not hard up.

The utility model discloses further set up to: the nylon head is close to one of screw rod is served and has been seted up the draw-in groove, the rubber circle is close to the one end of nut is provided with the arch, protruding on the rubber circle with the overhead draw-in groove interference fit of nylon.

Through adopting above-mentioned technical scheme, with rubber circle and the overhead draw-in groove interference fit of nylon, with the protruding joint of rubber circle in nylon tap, can prevent that the rubber circle from losing, can play the cushioning effect again, prevent that the screw from excessively twisting in the material to and the elasticity of rubber circle prevents that the screw is not hard up.

The utility model discloses further set up to: the nylon heads are arranged into regular polygons; a plurality of convex edges are arranged on the side wall of the nylon tap; and a medium head is arranged at one end of the nylon head close to the screw rod.

By adopting the technical scheme, the nylon head is arranged into a regular polygon and is arranged on the convex edge on the side wall of the nylon head, and when a wrench is used for screwing or unscrewing a screw, the friction force between the wrench and the side wall of the nylon head is enhanced; and when the screw is screwed or unscrewed, the wrench can apply force in the direction close to the screw rod and abut against the meson head, the wrench and the nylon tap do not need to be kept on the same horizontal plane, and the wrench is not easy to be separated from the nylon tap.

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

1. the connection between the nylon tap and the nut is fastened, and the nylon tap is prevented from being separated from the nut, so that the exposed nut is prevented from being corroded by rainwater and waste gas, and the service life of the color steel plate fixed by the nylon head screw is ensured;

2. the screw is prevented from loosening after the nylon head screw is installed and fixed;

3. drilling, tapping and locking can be carried out without auxiliary processing, and the working efficiency is improved.

Drawings

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

FIG. 2 is a partial schematic view of the nut and screw;

FIG. 3 is a sectional view of the internal structure of the screw;

fig. 4 is a schematic view of a card slot structure.

In the figure, 1, a nylon head; 11. a rib; 12. a media head; 13. a card slot; 14. a rubber ring; 141. a protrusion; 2. a nut; 21. a support bar; 211. a first connecting rod; 212. a second connecting rod; 3. a screw; 31. a smooth section; 311. an oil storage tank; 312. an oil inlet channel; 313. an oil outlet; 32. a threaded segment; 322. chip grooves are removed.

Detailed Description

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

Referring to fig. 1, for the utility model discloses a nylon head screw, including nylon tap 1, nut 2 and the screw rod 3 that connects gradually.

The nylon tap 1 is in a hexagonal prism shape, a convex edge 11 which is convexly arranged and is parallel to the side edge is fixed on the side surface of the nylon head 1, and a circular meson head 12 is fixed on one end, close to the screw rod 3, of the nylon head 1.

Referring to fig. 1 and 2, one end of the nut 2 away from the screw rod 3 is provided with a plurality of support rods 21 arranged along the length direction of the screw rod 3, and the plurality of support rods 21 are uniformly distributed in the circumferential direction with the center of the nut 2 as the center of a circle.

A first connecting rod 211 and a second connecting rod 212 which are mutually crossed are welded between every two adjacent support rods 21, and the first connecting rod 211 and the second connecting rod 212 are integrally arranged.

Referring to fig. 3, the screw 3 includes a smooth section 31 close to one end of the nut 2 and a threaded section 32 far from one end of the nut 2, an oil storage tank 311 is axially disposed in the smooth section 31, an oil inlet channel 312 is formed by extending one end of the oil storage tank 311 close to the nut 2 obliquely outward from the smooth section 31, an oil outlet 313 is formed by extending one end of the oil storage tank 311 away from the nut 2 obliquely outward from the smooth section 31, and the oil outlet 313 is connected with an end portion of the threaded section 32 close to the smooth section 31.

Referring to fig. 1, the tail of the threaded section 32 of the screw 3 is provided in the shape of a drill tail.

The thread section 32 of the screw 3 is also provided with a chip removing groove 322, one end of the chip removing groove 322 is communicated with the tail part of the screw 3 in a drilling tail shape, and the other end is communicated with one end of the thread section 32 far away from the smooth section 31.

Referring to fig. 2 and 4, a rubber ring 14 is sleeved on one end of the screw rod 3 close to the screw cap 2; the one end that rubber circle 14 is close to nut 2 is provided with arch 141, and nylon head 1 is close to one of screw rod 3 and serves and has seted up draw-in groove 13, and draw-in groove 13 is the ring shape with arch 141, and protruding 141 and the draw-in groove 13 interference fit on the rubber circle 14.

The use principle is as follows:

when the screw is tightened, the nylon head screw is tightened until the object to be fixed is tightly pressed against the rubber ring 14.

In the process of screwing, lubricating oil can be dripped into the oil inlet channel 312, and the lubricating oil enters the threaded section 32 along the oil inlet channel 312 through the oil storage groove 311 and the oil outlet 313.

The production process comprises the following steps:

in this embodiment, the screw 3 and the nut 2 are manufactured integrally, the nut 2 is placed in a mold having the same shape as the nylon head 1, and the nylon tap 1 is fixed to the nut 2 by injection molding.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a nylon head screw, includes screw rod (3), nut (2) and nylon head (1), its characterized in that, nylon head (1) sets up on nut (2), nut (2) are kept away from one of screw rod (3) is served and is provided with many bracing pieces (21) that set up along screw rod (3) length direction, just bracing piece (21) evenly distributed is on same circumference.

2. The nylon-headed screw according to claim 1, wherein a first connecting rod (211) and a second connecting rod (212) are fixedly connected between every two adjacent supporting rods (21).

3. A nylon-headed screw according to claim 1, characterized in that the screw (3) comprises a smooth section (31) near the end of the nut (2) and a threaded section (32) remote from the end of the nut (2); be provided with oil storage tank (311) along the axial in smooth section (31), oil storage tank (311) are close to the one end slope of nut (2) is stretched out to smooth section (31) and is formed with oil feed passageway (312) outward, oil storage tank (311) are kept away from the one end slope of nut (2) is stretched out outward to smooth section (31) and is formed with oil-out (313), just oil-out (313) with screw thread section (32) are close to the end connection of smooth section (31).

4. A nylon-headed screw according to claim 3, characterized in that the tail of the threaded section (32) is provided with a drill-tail shape.

5. The nylon-headed screw according to claim 3, characterized in that the threaded section (32) of the screw (3) is provided with a chip removal groove (322), one end of the chip removal groove (322) is communicated with the tail of the screw (3) in a drilling tail shape, and the other end is communicated with one end of the threaded section (32) far away from the smooth section (31).

6. The nylon-headed screw according to claim 1, characterized in that a rubber ring (14) is provided on the end of the threaded rod (3) close to the nut (2).

7. The nylon head screw according to claim 6, characterized in that a clamping groove (13) is formed in one end of the nylon head (1) close to the screw rod (3), a protrusion (141) is arranged at one end of the rubber ring (14) close to the nut (2), and the protrusion (141) on the rubber ring (14) is in interference fit with the clamping groove (13) on the nylon head (1).

8. The nylon-headed screw according to claim 1, characterized in that the nylon tap (1) is arranged in a regular polygon; a plurality of ribs (11) are arranged on the side wall of the nylon tap (1); one end of the nylon tap (1) close to the screw rod (3) is provided with a medium head (12).