Pressing rivet type stainless steel screw

Abstract

The utility model relates to the technical field of pressing rivet screws, in particular to a pressing rivet type stainless steel screw which comprises a horizontal nut portion and a vertical thread portion, the top of the vertical thread portion is installed in the center of the bottom of the horizontal nut portion, and the vertical thread portion and the horizontal nut portion are connected together to form an integrally-formed piece. According to the pressing rivet type stainless steel screw, the circular ring type loosening teeth and the corresponding radial drainage grooves are formed in the bottom face of the horizontal nut part, so that the bottom face of the horizontal nut part keeps the reinforcing and anti-twisting functions, and meanwhile the external water flow dredging function is added; and the condition that the screwdriver is polluted by external liquid when being mounted in a liquid pipeline is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure riveting screws, in particular to a pressure riveting stainless steel screw. Background Art

[0002] During the use of self-clinching screws, a small hole needs to be opened on the base, and the self-clinching screw is placed in the hole. The head is evenly and parallelly pressed using riveting equipment. Because there are teeth embossed under the head of the self-clinching screw, when pressed in, the base deforms around the self-clinching screw and bites with the teeth to form a strong external thread. The current self-clinching screws generally have the defect of poor anti-loosening effect, which can easily cause the product to fall off, thus affecting the normal use of the workpiece and bringing safety hazards.

[0003] China Patent Network discloses a self-clinching screw CN204878233U, which effectively prevents the self-clinching screw from rotating by firmly engaging with the connector through the anti-loosening teeth, has a certain torque resistance, and is equipped with a pipeline structure, which is suitable for riveting on some oil pipelines or liquid pipelines to avoid the problem of pipeline blockage. However, the gap between the nut part and the connector of the utility model is large, which makes it easy for external water sources, such as rainwater, to enter the connector and cause pollution. Utility Model Content

[0004] The utility model aims to provide a self-clinching stainless steel screw, which has the characteristics of high stability and a hydrophobic structure, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a self-riveting stainless steel screw, comprising a horizontal nut part and a vertical threaded part, the top of the vertical threaded part is installed at the bottom center of the horizontal nut part, and the two are connected together as an integrally formed part.

[0006] Preferably, the horizontal nut portion includes anti-loosening teeth, a hydrophobic groove and a transition shoulder, the anti-loosening teeth are a combination structure of multiple concentric circular convex strips with different diameters arranged at the bottom of the horizontal nut portion, the hydrophobic groove is a rectangular long strip groove structure arranged in a circle center array at the center of the circle connecting the bottom of the horizontal nut portion, and the transition shoulder is an arc-shaped annular groove structure arranged in the center of the horizontal nut portion.

[0007] Preferably, the hydrophobic groove passes through the anti-loosening teeth, and together with the anti-loosening teeth, forms a staggered concave-convex structure similar to a maze.

[0008] By forming a complex maze structure, a complex interlocking structure can be formed between the screw and the connector when the screw is installed on the connector, thereby improving the stress bearing capacity of the screw. The hydrophobic groove can prevent a large amount of external liquid from accumulating in the gap between the horizontal nut part and the connector.

[0009] Preferably, the vertical threaded portion includes an external thread, an oil passage, an oil passage opening and an end portion, wherein the external thread is a threaded structure arranged on the surface of the vertical threaded portion, the oil passage passage is three through-type circular pipe structures arranged on the vertical threaded portion, the three oil passage passages are arranged in a vertical array, and oil passage openings with beveled structures are provided at both ends of the oil passage passage, and the end portion is a truncated cone arranged at the bottom of the vertical threaded portion, and the bevel is at an angle of °.

[0010] The screw is suitable for riveting on some oil pipelines or liquid pipelines. Conventional self-clinching screws are easy to block the pipeline after riveting, while the oil channel and oil port on the screw can ensure smooth flow of liquid on both sides of the screw.

[0011] Preferably, the horizontal nut portion and the vertical thread portion are both made of stainless steel.

[0012] Reduce the risk of screws being damaged due to metal corrosion and aging after long-term use.

[0013] Compared with the prior art, the utility model provides a self-riveting stainless steel screw having the following beneficial effects: the self-riveting stainless steel screw, by arranging a plurality of annular loosening teeth and corresponding radial drain grooves on the bottom surface of the horizontal nut portion, maintains the reinforcement and anti-twist functions of the bottom surface of the horizontal nut portion, and adds the function of clearing external water flow, thereby avoiding the situation where the screwdriver is contaminated by external liquid when installed in the liquid pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional demonstration diagram of the structure of the utility model;

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

[0016] Figure 3 This is a demonstration diagram of the bottom of the horizontal nut portion of the utility model structure.

[0017] Among them: 1. horizontal nut part; 101. anti-loosening teeth; 102. drain groove; 103. transition shoulder; 2. vertical thread part; 201. external thread; 202. oil passage; 203. oil passage opening; 204. end. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-3 The utility model provides a technical solution: a self-riveting stainless steel screw, comprising a horizontal nut part 1 and a vertical threaded part 2, the top of the vertical threaded part 2 is installed at the bottom center of the horizontal nut part 1, and the two are connected together as an integrally formed part.

[0020] Specifically, the horizontal nut portion 1 includes anti-loosening teeth 101, a hydrophobic groove 102 and a transition shoulder 103. The anti-loosening teeth 101 are a combination structure of concentric circular convex strips with different diameters arranged at the bottom of the horizontal nut portion 1. The hydrophobic groove 102 is a rectangular long strip groove structure arranged in a circular array at the center of the circle connected at the bottom of the horizontal nut portion 1. The transition shoulder 103 is an arc-shaped annular groove structure arranged in the center of the horizontal nut portion 1.

[0021] Specifically, the hydrophobic groove 102 passes through the anti-loosening teeth 101 , and together with the anti-loosening teeth 101 , forms a staggered concave-convex structure similar to a maze.

[0022] Through the above technical solution, by forming a complex maze structure, when the screw is installed on the connecting piece, a complex bite structure can be formed between the screw and the connecting piece, thereby improving the stress bearing capacity of the screw. The hydrophobic groove 102 can prevent a large amount of external liquid from accumulating in the gap between the horizontal nut part 1 and the connecting piece.

[0023] Specifically, the vertical threaded portion 2 includes an external thread 201, an oil passage 202, an oil passage opening 203 and an end portion 204. The external thread 201 is a threaded structure arranged on the surface of the vertical threaded portion 2. The oil passage 202 is three through-type circular pipe structures arranged on the vertical threaded portion 2. The three oil passages 202 are arranged in a vertical array. Beveled structure oil passage openings 203 are provided at both ends of the oil passage 202. The end portion 204 is a truncated cone arranged at the bottom of the vertical threaded portion 2, and the bevel is at an angle of 45°.

[0024] Through the above technical solution, the screw is suitable for riveting on some oil pipelines or liquid pipelines. Conventional self-riveting screws are easy to block the pipeline after riveting, while the oil channel 202 and oil port 203 on the screw can ensure smooth flow of liquid on both sides of the screw.

[0025] Specifically, the horizontal nut portion 1 and the vertical threaded portion 2 are both made of stainless steel.

[0026] Through the above technical solution, the damage of screws due to metal corrosion and aging during long-term use can be reduced.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-clinching stainless steel screw, comprising a horizontal nut portion (1) and a vertical threaded portion (2), characterized in that: The top of the vertical threaded portion (2) is mounted at the bottom center of the horizontal nut portion (1), and the two are integrally formed parts connected together. The horizontal nut portion (1) comprises anti-loosening teeth (101), a water-repellent groove (102) and a transition shoulder (103). The anti-loosening teeth (101) are a combination structure of a plurality of concentric circular convex strips of different diameters arranged at the bottom of the horizontal nut portion (1). The water-repellent groove (102) is a rectangular long strip groove structure arranged in a circle array at the center of the circle at the bottom of the horizontal nut portion (1). The transition shoulder (103) is an arc-shaped groove arranged at the center of the horizontal nut portion (1). The vertical threaded portion (2) comprises an external thread (201), an oil passage (202), an oil passage opening (203) and an end portion (204); the external thread (201) is a thread structure arranged on the surface of the vertical threaded portion (2); the oil passage (202) is a three-through circular pipe structure arranged on the vertical threaded portion (2); the three oil passages (202) are arranged in a vertical array; oil passage openings (203) with bevel structures are provided at both ends of the oil passage (202); and the end portion (204) is a truncated cone arranged at the bottom of the vertical threaded portion (2), with the bevel forming an angle of 45°.

2. The self-clinching stainless steel screw according to claim 1, characterized in that: The hydrophobic groove (102) penetrates the anti-loosening teeth (101), and together with the anti-loosening teeth (101) forms a staggered concave-convex structure similar to a maze.

3. The self-clinching stainless steel screw according to claim 1, characterized in that: The horizontal nut portion (1) and the vertical thread portion (2) are both made of stainless steel.

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