Combined stainless steel screw

Abstract

The utility model relates to the technical field of combined screws, in particular to a combined stainless steel screw which comprises a screw body, and the top of the screw body is provided with first connecting pieces with the number larger than that of the first connecting pieces and the first connecting pieces are evenly distributed. The first connecting piece is matched with the second connecting piece; and a pan head mounting hole for mounting a replaceable pan head is formed above the center of the second connecting piece. The utility model has the advantages that: 1, the disc head and the screw rod are replaced through the first connecting piece and the second connecting piece, and can be repeatedly used, especially on a large-sized bolt; and secondly, the connecting mechanism is stable and high in strength.

Description

TECHNICAL FIELD

[0001] The utility model relates to combined screw technical field, concretely is a combined stainless steel screw rod. BACKGROUND

[0002] Screw is the tool that the physical and mathematical principle of the round rotation of the inclined surface of object and friction is used to tighten each component gradually, is the most common fastener, and is widely used in various trades. General screw includes screw cap and screw rod, and is mostly made of metal material. At present, the fixing mode of the component in product is mostly screw locking.

[0003] Prior art, only screwdriver or wrench can be used to unscrew it, and when the screw is installed too tightly, the screwdriver or wrench is easy to damage the cross screw thread or groove, so that it cannot be disassembled. INVENTION CONTENTS

[0004] The utility model discloses a combined stainless steel screw rod to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a combined stainless steel screw rod, including screw rod, its characterized in that: the top of screw rod is equipped with the first connecting piece that the number is greater than 2 and is divided equally, the first connecting piece is equipped with the disc head installation hole that the disc head can be replaced with and is arranged on the second connecting piece cooperation and the top of the center of second connecting piece, the first connecting piece section is " 7 " character, the second connecting piece center is equipped with the equal number of installation groove with the first connecting piece number, and is evenly separated through the partition plate, installation groove and partition plate are all arranged below disc head installation hole, the limit block is arranged in installation groove, and the arc length of limit block is equal with the arc length of first connecting piece, the upper of replaceable disc head is equipped with the recess, and the lower is equipped with the limit insert plate.

[0006] The number of limit insert plate is equal with the number of first connecting piece.

[0007] The outer ring of replaceable disc head is equipped with the gap that is convenient for prying.

[0008] The utility model has the following beneficial effects: first, through first connecting piece and second connecting piece, the replacement of disc head and screw rod is realized, and can be reused, especially on large bolts, second, the connecting mechanism is stable and has high strength. DRAWING DESCRIPTION

[0009] Figure 1 It is the structure schematic diagram of the utility model;

[0010] Figure 2 It is Figure 1 The structure schematic diagram of screw rod (1) in it;

[0011] Figure 3is Figure 1 Structure diagram of second connecting piece (2) in the figure;

[0012] Figure 4 is Figure 1 Structure diagram of replaceable disc head (3) in the figure.

[0013] In the figure: 1, screw rod, 101, first connecting piece, 2, second connecting piece, 201, installation groove, 202, isolation plate, 203, disc head installation hole, 204, limiting block, 3, replaceable disc head, 301, groove, 302, notch, 303, limiting insert plate. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0015] Please refer to Figures 1-4 The present application provides a technical solution: a combined stainless steel screw rod, comprising a screw rod 1, the screw rod 1 top is provided with an equal first connecting piece 101, the number is greater than 2, and the first connecting piece 101 section is "7" character shape.

[0016] Meanwhile, the first connecting piece 101 is provided with a second connecting piece 2 matched therewith, and the second connecting piece 2 center top is provided with a disc head installation hole 203 for installing a replaceable disc head 3; the disc head installation hole 203 lower side is provided with

[0017] An installation groove 201 equal in number to the first connecting piece 101 is evenly separated by an isolation plate 202; the installation groove 201 is provided with a limiting block 204, and the arc length of the limiting block 204 is equal to the arc length of the first connecting piece 101, so that the first connecting piece 101 can be inserted into the installation groove 201 and rotated, so that the first connecting piece 101 is above the limiting block 204.

[0018] The replaceable disc head 3 upper side is provided with a groove 301, and the lower side is provided with a limiting insert plate 303 equal in number to the first connecting piece 101, the limiting insert plate 303 limits the movement of the first connecting piece 101, so that the first connecting piece 101, the second connecting piece 2 and the replaceable disc head 3 form an integral whole.

[0019] In order to replace the replaceable disc head 3, the replaceable disc head 3 outer circle is provided with a notch 302 for easy prying.

[0020] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A combined stainless steel screw, comprising a screw (1), characterized in that: The screw rod (1) is provided with a plurality of first connecting members (101) at the top, the number of which is greater than 2 and is equal; the first connecting members (101) are matched with second connecting members (2), and the second connecting members (2) are provided with disc head installation holes (203) for installing replaceable disc heads (3) above the centers; the cross section of the first connecting members (101) is in the shape of "7", the centers of the second connecting members (2) are provided with installation grooves (201) equal in number to the first connecting members (101), and are evenly separated by partition plates (202); the installation grooves (201) and the partition plates (202) are both arranged below the disc head installation holes (203); the installation grooves (201) are provided with limiting blocks (204), and the arc length of the limiting blocks (204) is equal to the arc length of the first connecting members (101); the replaceable disc heads (3) are provided with grooves (301) above and limiting insertion plates (303) below.

2. A modular stainless steel screw as claimed in claim 1, wherein: The number of the limiting insertion plates (303) is equal to the number of the first connecting members (101).

3. A combination stainless steel screw as defined in claim 1, wherein: The replaceable disc heads (3) are provided with notches (302) at the outer rings for facilitating prying.

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