Self-tapping screw sleeve

Abstract

The utility model discloses a self-tapping screw sleeve, comprising a sleeve body, wherein a self-tapping screw is vertically inserted inside the sleeve body, and the self-tapping screw penetrates the sleeve body, and the bottom end of the self-tapping screw is vertically located at the bottom end of the outside of the sleeve body, the sleeve body is formed with sleeve vertical ribs, and the sleeve vertical ribs are vertically and equidistantly distributed around the outside of the sleeve body, the top of the sleeve body is horizontally formed with a sleeve plate surface, and the sleeve plate surface and the sleeve body are interconnected, the sleeve plate surface is formed with a plurality of clamping thorns, and the plurality of spikes are vertically surrounded by the bottom surface of the sleeve plate surface, and the plurality of spikes are parallel to each other between the sleeve bodies.

Description

Technical Field

[0001] The utility model relates to the field of flexible roof installation, in particular to a self-tapping screw sleeve. Background Art

[0002] It is difficult to protect the finished products between the conventional flexible roof installation processes. During the rainy season, the insulation is easily affected by moisture and absorbs moisture. The surface layer of the waterproof membrane is fully adhered to the rock wool and then fixed with conventional self-tapping screws. Since the self-tapping screws are exposed to the air for a long time, the self-tapping screws are easily corroded, and then the connection between the self-tapping screws and the flexible roof becomes loose. In windy and rainy weather, the membrane bulges, blocking rainwater from draining down to the gutter, forming water accumulation at the joints of the membrane, and after the membrane bulges, a cavity is formed between the membrane and the insulation, forming a negative pressure, and the self-tapping screws are easily corroded and broken, resulting in rainwater being sucked into the lower part of the membrane to form leakage. For this reason, a self-tapping screw sleeve is proposed. Utility Model Content

[0003] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0004] A self-tapping screw sleeve comprises a sleeve body, wherein a self-tapping screw is vertically inserted inside the sleeve body, and the self-tapping screw penetrates the sleeve body, and the bottom end of the self-tapping screw is vertically located at the bottom end of the outside of the sleeve body, the sleeve body is formed with sleeve vertical ribs, and the sleeve vertical ribs are vertically and equidistantly distributed around the outside of the sleeve body, a sleeve plate surface is horizontally formed at the top end of the sleeve body, and the sleeve plate surface and the sleeve body are interconnected, a plurality of clamping thorns are formed on the sleeve plate surface, and a plurality of spikes are vertically surrounded by the bottom surface of the sleeve plate surface, and the plurality of spikes are parallel to each other between the sleeve bodies.

[0005] Preferably, the sleeve body is formed with a pointed head, and the pointed head is vertically located at the bottom end of the sleeve body, the pointed head and the sleeve body are interconnected, and the self-tapping screw passes through the pointed head and is located at the bottom end outside the pointed head.

[0006] Preferably, a channel is formed inside the sleeve body, and the self-tapping screw is vertically inserted inside the channel, and the channel and the pointed head are interconnected, a screw opening is formed between the sleeve body and the sleeve plate surface, and the screw opening and the channel are interconnected, and the self-tapping screw passes through the screw opening.

[0007] Preferably, the self-tapping screw is formed with a hexalobular groove, and the hexalobular groove is located at the top of the self-tapping screw, and the hexalobular groove and the self-tapping screw are in the same movement direction.

[0008] Compared with the prior art, the beneficial effects of the utility model are: the supporting capacity of the casing body is enhanced by the casing vertical ribs, and when the self-tapping screws are passed through the TPO polymer waterproof membrane together with the casing body and the TPO polymer waterproof membrane is fixed on the metal flexible roof, several spikes will penetrate the TPO polymer waterproof membrane and be inserted and fixed to the metal flexible roof, which is more conducive to fixing the TPO polymer waterproof membrane and preventing large-scale tearing of the TPO polymer waterproof membrane, and when the self-tapping screws and the casing body are combined and installed on the metal flexible roof, the trampling caused by installation and maintenance will not affect the performance of the product.

[0009] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 It is a structural schematic diagram of a self-tapping screw casing;

[0012] Figure 2 Another structural schematic diagram of a self-tapping screw sleeve;

[0013] Figure 3 It is another structural schematic diagram of a self-tapping screw casing;

[0014] Figure 4 A schematic diagram of the channel structure.

[0015] As shown in the figure: 1. casing body, 2. casing plate surface, 3. casing vertical ribs, 4. spikes, 5. pointed head, 6. channel, 7. screw opening, 8. self-tapping screws, 9. plum blossom slot. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-4In the embodiment of the utility model, the self-tapping screw sleeve comprises a sleeve body 1, a self-tapping screw 8 is vertically inserted inside the sleeve body 1, and the self-tapping screw 8 penetrates the sleeve body 1, and the bottom end of the self-tapping screw 8 is vertically located at the bottom end of the sleeve body 1, so that the self-tapping screw 8 and the sleeve body 1 are in the same movement direction, and the sleeve body 1 is composed of high-quality polypropylene PP, the sleeve body 1 is formed with sleeve vertical ribs 3, and the sleeve vertical ribs 3 are vertically equidistantly distributed around the outside of the sleeve body 1, so that the supporting capacity of the sleeve body 1 is enhanced by the sleeve vertical ribs 3, and the top of the sleeve body 1 is horizontally formed with a sleeve plate surface 2, and the sleeve plate surface 2 and the sleeve body 1 are mutually connected, the sleeve plate surface 2 is formed with a plurality of clamping thorns 4, and the plurality of spikes 4 are vertically surrounded by the bottom surface of the sleeve plate surface 2, and the plurality of spikes 4 are mutually parallel between the sleeve body 1, and then through the self-tapping screws 8 together with the sleeve body 1 to pass through the TPO polymer waterproof membrane and fix the TPO polymer waterproof membrane on the metal flexible roof, the plurality of spikes 4 will penetrate the TPO polymer waterproof membrane and be inserted and fixed to the metal flexible roof, so as to be more conducive to fixing the TPO polymer waterproof membrane and prevent the TPO polymer waterproof membrane from being torn over a large area.

[0018] The sleeve body 1 is formed with a pointed head 5, and the pointed head 5 is vertically located at the bottom end of the sleeve body 1. The pointed head 5 and the sleeve body 1 are interconnected, and the self-tapping screw 8 passes through the pointed head 5 and is located at the bottom end outside the pointed head 5. The bottom end of the self-tapping screw 8 is limited by the pointed head 5, so that the self-tapping screw 8 and the sleeve body 1 can penetrate the metal flexible roof faster.

[0019] A channel 6 is formed inside the sleeve body 1, and a self-tapping screw 8 is vertically inserted inside the channel 6, and the channel 6 and the pointed head 5 are interconnected. A screw opening 7 is formed between the sleeve body 1 and the sleeve plate surface 2, and the screw opening 7 and the channel 6 are interconnected, and the self-tapping screw 8 passes through the screw opening 7, so that the self-tapping screw 8 is inserted inside the sleeve body 1.

[0020] The self-tapping screw 8 is formed with a hexalobular groove 9, and the hexalobular groove 9 is located at the top of the self-tapping screw 8, and the hexalobular groove 9 and the self-tapping screw 8 have the same movement direction, so that the hexalobular groove 9 makes it difficult for an external tool to slip when screwing the self-tapping screw 8, and there is no need to increase the downward pressure of the tool during the tightening process.

[0021] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A self-tapping screw casing, comprising a casing body, characterized in that: A self-tapping screw is vertically inserted inside the sleeve body, and the self-tapping screw penetrates the sleeve body, and the bottom end of the self-tapping screw is vertically located at the bottom end of the outside of the sleeve body. The sleeve body is formed with sleeve vertical ribs, and the sleeve vertical ribs are vertically equidistantly distributed around the outside of the sleeve body. A sleeve plate surface is horizontally formed at the top of the sleeve body, and the sleeve plate surface and the sleeve body are interconnected. A plurality of clamping thorns are formed on the sleeve plate surface, and a plurality of spikes are vertically surrounded by the bottom surface of the sleeve plate surface, and the plurality of spikes are parallel to each other between the sleeve bodies.

2. The self-tapping screw sleeve according to claim 1, characterized in that: The sleeve body is formed with a pointed head, and the pointed head is vertically located at the bottom end of the sleeve body. The pointed head and the sleeve body are interconnected, and the self-tapping screw passes through the pointed head and is located at the bottom end outside the pointed head.

3. The self-tapping screw sleeve according to claim 2, characterized in that: A channel is formed inside the sleeve body, and the self-tapping screw is vertically inserted inside the channel, and the channel and the pointed head are interconnected. A screw opening is formed between the sleeve body and the sleeve plate surface, and the screw opening and the channel are interconnected, and the self-tapping screw passes through the screw opening.

4. The self-tapping screw sleeve according to claim 1, characterized in that: The self-tapping screw is formed with a hexalobular groove, and the hexalobular groove is located at the top of the self-tapping screw, and the hexalobular groove and the self-tapping screw are in the same moving direction.

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