Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A self-tapping screw and screw technology, which is applied in the direction of screws, threaded fasteners, connecting components, etc., can solve the problems of not taking into account the improvement of the waterproof performance of self-tapping screws, achieve good repeatability, improve tensile strength, and increase stability sexual effect
Active Publication Date: 2019-01-01
SUMSUN FASTENERS SYST SHENZHEN CO LTD
View PDF8 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
In addition, there is no solution to improve the waterproof performance of self-tapping screws
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0038] Please refer to the attached figure 1 with 2 , the waterproof combination self-tapping screw of this embodiment includes:
[0039] screw head 1, located at the head of the self-tapping screw;
[0040] The screw rod 2 is connected with the screw head 1 and is located at the tail of the self-tapping screw;
[0041] The thread 3 is arranged on the circumference of the screw 2;
[0042] Silicone gasket (not shown), arranged on the neck position where the screw head 1 and the screw rod 2 are connected, for waterproofing; and
[0043] The flat gasket 5 is arranged at the neck position where the screw head 1 and the screw rod 2 are connected, and is close to the side of the screw head 1; the screw head 1, the flat gasket 5 and the silicone gasket (not shown) are sequentially connected;
[0044] The thread 3 includes a first contact surface 6 near the tail of the self-tapping screw, and a second contact surface 7 near the head of the self-tapping screw.
[0045] A profile ...
Embodiment 2
[0055] Please refer to the attached Figures 3 to 5 , the waterproof combination self-tapping screw of this embodiment includes:
[0056] screw head 1, located at the head of the self-tapping screw;
[0057] The screw rod 2 is connected with the screw head 1 and is located at the tail of the self-tapping screw; the tail of the screw rod is tapered to facilitate self-tapping;
[0058] The thread 3 is arranged on the circumference of the screw rod 2;
[0059] Silicone gasket 4 is arranged at the neck position where the screw head 1 and the screw rod 2 are connected, and is used for waterproofing; and
[0060] The flat gasket 5 is arranged at the neck position where the screw head 1 and the screw rod 2 are connected, and is close to the side of the screw head 1; the screw head 1, the flat gasket 5 and the silicone gasket 4 are sequentially connected;
[0061] The screw head 1 is provided with a mounting hole 9, and the axis line of the mounting hole 9 deviates from the central...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention discloses a waterproof combined tapping screw. The waterproof combined tapping screw comprises a screw head, a screw rod and screw teeth. A silica gel washer is arranged at the neck where the screw head is connected with the screw rod. Each screw tooth comprises a first contact face located on the side close to the tail of the tapping screw and a second contact face located on the side close to the head of the tapping screw, a tooth-shaped angle is formed between each first contact face and the corresponding second contact face and ranges from 15 degrees to 45 degrees. The root of the first contact face of each screw tooth is axially connected with the screw rod through an arc-shaped transition section, the root of the second contact face of each screw tooth is directly and axially connected with the screw rod, and the root of the first contact face and the root of the second contact face linearly intersect to form an obtuse angle. The silica gel washer is arranged at the connecting neck of the screw head and the screw rod, and the waterproof sealing effect is achieved when the tapping screw is totally locked in a connecting material; and the arc-shaped transition sections are added on the first contact faces of the screw teeth, line connection of the second contact faces of the screw teeth are maintained, and the obtuse angles are formed, so that the tapping effect that the tapping screw can be tapped in easily and is not liable to be pulled out during tapping screw locking is achieved.
Description
technical field [0001] The invention relates to the technical field of self-tapping screws, and particularly discloses a waterproof combined self-tapping screw. Background technique [0002] Self-tapping screw, English name Self-tapping Screw, is a kind of threaded fastener that is self-tapping and drilling out the matching female thread in the pre-drilled hole of metal or non-metallic material. Self-tapping screws are mostly used for the connection between thin metal plates (steel plates, saw boards, etc.). When connecting, first make a threaded bottom hole for the connected part, and then screw the self-tapping screw into the threaded bottom hole of the connected part. Since the thread surface of the self-tapping screw has a high hardness (≥45HRC), the internal thread can be tapped in the threaded bottom hole of the connected part to form a connection. [0003] With the wide range of use, especially in outdoor or even underwater environments, higher requirements are plac...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more