Nick tap integrated self drilling screw with waterproof soft rubber mat

Abstract

The utility model discloses a nylon head integrated self drilling screw with a waterproof soft rubber mat, which comprises a nylon hexagon nut, a screw and the waterproof soft rubber mat, the screw comprises a screw rod, a screw head integrally formed with the screw rod is arranged at the upper end of the screw rod, a cutting portion is arranged at the lower end of the screw rod, and threads are arranged on the outer surface of the screw rod. The nylon hexagon nut is fixedly connected with the nail head through an injection molding process, a protruding supporting part is arranged on the upper end face of the nail head, a notch is formed in the supporting part and divides the supporting part into two symmetrically-distributed connecting parts, an inwards-concave part is formed between the outer side face of each connecting part and the end face of the nail head, two symmetrically-distributed convex teeth are arranged on the nail rod, and the two convex teeth are arranged on the nail rod. Due to the fact that the two protruding teeth are arranged on the nail rod, when the self drilling screw enables the resin tile and a steel plate to be screwed and fixed, the protruding teeth can form reamed holes in the resin tile, the resin tile and the nail rod are in a separated state, the phenomenon that the resin tile is cracked by pulling can be prevented, and maintenance frequency in the later period is reduced.

Description

Technical Field

[0001] The utility model relates to a screw, in particular to a nylon head integrated self-drilling screw with a waterproof soft rubber pad. Background Art

[0002] Self-drilling screws are widely used for connecting and installing metal plates, such as stainless steel, steel plates, and galvanized steel. Their surface and center hardness are higher than those of typical self-tapping screws. Their tails are drilled or pointed, requiring no additional processing. They can be directly drilled, tapped, and tightened into the base material, significantly reducing installation time.

[0003] Chinese patent authorization announcement number CN216666173U discloses a nylon-tipped self-drilling screw with an aluminum integrated gasket, which consists of a nut, a screw, and an integrated gasket assembly. The screw includes a shank, an upper end of which is provided with an integrally formed head, a lower end of which is provided with an integrally formed cutting portion, and an outer surface of the shank having threads. The nut and the head are connected and fixed by an injection molding process. The nut is made of nylon, and the integrated gasket assembly consists of a sealing plate and a sealing sheet made of EPDM rubber, which is fixedly connected to the sealing plate. Although this screw can prevent rust, water leakage, and aging, after the self-drilling screw tightens the resin tile to the steel plate, the resin tile is prone to cracking over time, causing trouble for later maintenance. At the same time, the resin tile will produce a "crackling" sound during thermal expansion and contraction, which brings inconvenience to construction. Utility Model Content

[0004] In order to overcome the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a nylon head integrated self-drilling screw with a waterproof soft rubber pad.

[0005] The utility model is realized through the following technical scheme: a nylon head integrated self-drilling screw with a waterproof soft rubber pad, comprising a nylon hexagonal nut, a screw and a waterproof soft rubber pad, wherein the screw comprises a nail rod, the upper end of the nail rod is provided with a nail head integrally formed therewith, the lower end of the nail rod is provided with a cutting portion integrally formed therewith, the outer surface of the nail rod is provided with a thread, the nylon hexagonal nut and the nail head are connected and fixed by an injection molding process, the upper end surface of the nail head is provided with a raised supporting portion, the supporting portion is provided with a notch, the notch divides the supporting portion into two symmetrically distributed connecting portions, an inner concave portion is formed between the outer side surface of each connecting portion and the end surface of the nail head, the nail rod is provided with two symmetrically distributed convex teeth, the two convex teeth are integrally formed with the nail rod, and the connection between the nail rod and the convex teeth is provided with an inclined concave surface.

[0006] Preferably, the waterproof soft rubber pad of the present invention includes a rubber pad body, an inner sealing ring formed inside the rubber pad body, and an outer sealing ring formed outside the rubber pad body. The inner sealing ring is protruded toward the inside of the rubber pad body, and the outer surface of the rubber pad body is an arc surface.

[0007] Preferably, the diameter of the inner sealing ring of the present invention is greater than the distance between the outer arc sections of the two convex teeth.

[0008] Preferably, the notch of the present invention is V-shaped.

[0009] Preferably, the outer diameter of the nail head of the present invention is greater than the outer diameter of the nail rod.

[0010] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0011] 1. The utility model is provided with two convex teeth on the nail rod. When the drill screw tightens the resin tile and the steel plate, the convex teeth can form an expanded hole on the resin tile, so that the resin tile and the nail rod are separated, so that the resin tile can be prevented from cracking after installation, thereby reducing the frequency of later maintenance. At the same time, the resin tile will not produce abnormal noises such as "crackling" during thermal expansion and contraction, and workers will have better control during construction, which brings convenience to construction.

[0012] 2. The utility model is provided with a waterproof soft rubber pad consisting of an inner sealing ring and an outer sealing ring on the nail rod, so that the two convex teeth can be sealed by the inner sealing ring and the outer sealing ring after drilling, and no foreign matter will enter the matching area of ​​the thread and the fastener from the drilled hole, preventing liquids such as water from penetrating into the threaded connection part and causing rust and other problems, thereby improving the service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 3 This is an exploded view of the utility model;

[0017] The reference numerals in the above drawings are described as follows:

[0018] 1—Nylon hexagonal nut;

[0019] 2—screws;

[0020] 3—waterproof soft rubber pad, 30—rubber pad body, 31—inner sealing ring, 32—outer sealing ring;

[0021] 4 - nail rod, 40 - convex teeth, 41 - nail rod, 42 - horizontal part, 43 - inclined part, 44 - arc segment;

[0022] 5—nail head;

[0023] 6—cutting part;

[0024] 7—thread;

[0025] 8—support portion, 80—connecting portion, 81—inner recessed portion;

[0026] 9—Slot. DETAILED DESCRIPTION

[0027] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] Reference Figure 1 、 Figure 2 and Figure 3As shown, a nylon head integrated self-drilling screw with a waterproof soft rubber pad includes a nylon hexagonal nut 1, a screw 2 and a waterproof soft rubber pad 3, wherein the screw 1 includes a nail rod 4, the upper end of the nail rod 4 is provided with a nail head 5 integrally formed therewith, the outer diameter of the nail head 5 is larger than the outer diameter of the nail rod 4, the lower end of the nail rod 4 is provided with a cutting portion 6 integrally formed therewith, the outer surface of the nail rod 4 is provided with a thread 7, and the nylon hexagonal nut 1 and the nail head 5 are connected and fixed by an injection molding process.

[0031] With this setting, the nylon hexagonal nut is made of reinforced nylon melt injection molding, which not only enhances the torsional strength but also prevents the weathering problem of the nylon hexagonal nut due to ultraviolet rays. The exposed part of the nylon hexagonal nut will not rust, age, crack, etc. in the natural environment. At the same time, it can also match the color of the resin tile, making the overall aesthetics of the two consistent.

[0032] In addition, in order to make the nylon hexagonal nut and the nail head more firm after injection molding and not easy to fall off, a raised support portion 8 is provided on the upper end surface of the nail head 5, and a notch 9 is provided on the support portion 8. The notch 9 divides the support portion into two symmetrically distributed connecting portions 80, and an inner recess 81 is formed between the outer side surface of each connecting portion 80 and the end surface of the nail head 5.

[0033] With this arrangement, when the nylon hexagonal nut and the nail rod are injection molded, the nylon raw material can be filled to the position of the slot 9 and the inner recess 81, so that the nylon hexagonal nut and the nail rod can be an integrated structure after injection molding, thereby increasing the overall structural strength and being firm after molding, wherein the slot 9 is V-shaped.

[0034] In order to be able to form an expanded hole on the resin tile, two symmetrically distributed convex teeth 40 are provided on the nail rod 4. The two convex teeth 40 are integrally formed with the nail rod 4. An inclined concave surface 41 is provided at the connection between the nail rod 4 and the convex tooth 40. The convex tooth 40 has a horizontal portion 42 and an inclined portion 43. An arc segment 44 is provided between the horizontal portion 42 and the inclined portion 43.

[0035] With this arrangement, when using a self-drilling screw to fix, the top of the threaded tail end first contacts the resin tile, and then gradually penetrates deeper, the cutting part of the top begins to work, and the discharge generated by the rotation is discharged through the inclined groove of the cutting part, which will not affect the continued drilling of the screw, reducing the friction and resistance caused by the discharge waste.

[0036] As the screw continues to drill, once the threads have entered and the convex teeth contact the resin tile, drilling begins. The resulting material is discharged through the inclined concave surface. As the convex teeth create a shaped hole, the diameter of the inner sealing ring 31 is greater than the distance between the outer arc segments 44 of the two convex teeth. The waterproof soft rubber pad 3 is made of elastic plastic. The contraction and compression of the inner and outer sealing rings 31, 32 allow them to seal the shaped hole in the resin tile, preventing external water, dust, and other objects from entering the threaded connection and damaging the tightness and secureness of the connection.

[0037] In addition, the waterproof soft rubber pad 3 includes a rubber pad body 30, an inner sealing ring 31 formed inside the rubber pad body 30, and an outer sealing ring 32 formed outside the rubber pad body 30. The inner sealing ring 31 is protruded toward the inside of the rubber pad body 30. The outer surface of the rubber pad body 30 is an arc surface. When it is pressed, the waterproof soft rubber pad will be elastically compressed and tightly combined with the resin tile.

[0038] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A nylon head integrated self-drilling screw with a waterproof soft rubber pad, comprising a nylon hexagonal nut (1), a screw (2) and a waterproof soft rubber pad (3), wherein the screw (2) comprises a nail rod (4), the upper end of the nail rod (4) is provided with a nail head (5) integrally formed therewith, the lower end of the nail rod (4) is provided with a cutting portion (6) integrally formed therewith, the outer surface of the nail rod (4) is provided with a thread (7), the nylon hexagonal nut (1) and the nail head (5) are connected and fixed by an injection molding process, and is characterized in that: The upper end surface of the nail head (5) is provided with a raised support portion (8), and the support portion (8) is provided with a notch (9), which divides the support portion into two symmetrically distributed connecting portions (80), and an inner concave portion (81) is formed between the outer side surface of each connecting portion (80) and the end surface of the nail head (5). The nail rod (4) is provided with two symmetrically distributed convex teeth (40), and the two convex teeth (40) are integrally formed with the nail rod (4). The connection between the nail rod (4) and the convex teeth (40) is provided with an inclined concave surface (41).

2. The nylon-tipped integrated self-drilling screw with a waterproof soft rubber pad according to claim 1, characterized in that: The convex tooth (40) has a horizontal portion (42) and an inclined portion (43), and a circular arc segment (44) is provided between the horizontal portion (42) and the inclined portion (43).

3. The nylon-tipped integrated self-drilling screw with a waterproof soft rubber pad according to claim 1, characterized in that: The waterproof soft rubber pad (3) comprises a rubber pad body (30), an inner sealing ring (31) formed inside the rubber pad body (30), and an outer sealing ring (32) formed outside the rubber pad body (30), wherein the inner sealing ring (31) is arranged to protrude toward the inside of the rubber pad body (30), and the outer surface of the rubber pad body (30) is an arc surface.

4. The nylon-tipped integrated self-drilling screw with a waterproof soft rubber pad according to claim 3, characterized in that: The diameter of the inner sealing ring (31) is greater than the distance between the outer arc sections (44) of the two convex teeth.

5. The nylon-tipped integrated self-drilling screw with a waterproof soft rubber pad according to claim 1, characterized in that: The notch (9) is V-shaped.

6. The nylon-tipped integrated self-drilling screw with a waterproof soft rubber pad according to claim 1, characterized in that: The outer diameter of the nail head (5) is greater than the outer diameter of the nail rod (4).

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