Adjustable screw with adjustable specification

Abstract

The utility model belongs to the technical field of screws, and particularly relates to a specification-adjustable adjustable screw which comprises a metal end, a screwing rod arranged at the bottom of the metal end, threads arranged on the screwing rod, a cross groove formed in the top of the metal end, a fixing piece arranged at the top of the screwing rod, a threaded hole formed in the fixing piece and a square hole formed in the fixing piece. The metal end comprises a main rod, a limiting rod, a ball and a buffer cavity, the limiting rod is arranged at the bottom of the metal end, the ball is arranged at the bottom of the limiting rod, the buffer cavity is formed in the metal end, and the main rod is arranged in the center of the bottom of the metal end. Through the arrangement of the main rod, the limiting rod, the screwing rod, the threaded hole and the square hole, the specification of the screw can be changed according to the actual situation, more installation requirements can be met conveniently, when the screw is used for a long time, outer side threads are abraded or deformed, a new screwing rod can be replaced, and the service life of the whole screw is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of screws, in particular to an adjustable screw with adjustable specifications. Background Art

[0002] A screw is a common fastener, usually made of metal, with a threaded outer surface, used to fasten objects together. Screws are usually used in conjunction with nuts, and the screw threads are locked with the nut threads by turning the screw to achieve the purpose of fixing the object. Screws come in a variety of different types and sizes and are used in a wide range of applications.

[0003] The prior art has the following problems:

[0004] 1. The overall structure of existing screws is relatively fixed, the size cannot be adjusted, the overall applicability is low, and it is inconvenient to flexibly adjust according to actual needs;

[0005] 2. After the existing screws have been used for a long time, the outer thread structure is subjected to a large pressure for a long time, which is easy to cause wear or deformation, affecting the subsequent normal use. The overall service life can be further increased. Utility Model Content

[0006] In view of the shortcomings of the prior art, the utility model provides an adjustable screw with adjustable specifications, which solves the problems that the current structure is relatively fixed, the specifications cannot be adjusted, the overall applicability is low, it is inconvenient to flexibly adjust according to actual needs, the threaded structure is subjected to great pressure for a long time, it is easy to cause wear or deformation, affecting the subsequent normal use, and the overall service life can be further increased.

[0007] To achieve the above object, the utility model provides the following technical solutions: an adjustable screw with adjustable specifications, comprising a metal end, a tightening rod is provided at the bottom of the metal end, a spiral pattern is provided on the tightening rod, a cross groove is provided at the top of the metal end, a fixing piece is provided at the top of the tightening rod, a threaded hole is provided on the fixing piece, and a square hole is provided on the fixing piece;

[0008] The metal end comprises a main rod, a limiting rod, a ball and a buffer cavity. The limiting rod is arranged at the bottom of the metal end, the ball is arranged at the bottom of the limiting rod, a buffer cavity is opened inside the metal end, and the main rod is arranged at the center of the bottom of the metal end.

[0009] As a preferred technical solution of the utility model: the main rod is fixedly installed at the bottom center position of the metal end by welding, the limiting rod is inserted into the buffer cavity, the top end of the limiting rod extends upward from the metal end, and the bottom end of the limiting rod extends downward from the metal end.

[0010] As a preferred technical solution of the utility model: the limiting rod is specifically cast by a magnet, the metal end is specifically made of iron, there is magnetic adsorption between the limiting rod and the metal end, and the ball is rotatably installed at the bottom of the limiting rod.

[0011] As a preferred technical solution of the utility model: the spiral pattern and the tightening rod are formed in one piece, and the fixing piece is fixedly installed on the top of the tightening rod.

[0012] As a preferred technical solution of the utility model: the tightening rod is provided with threaded holes identical to those on the fixing piece and corresponding in position, and there are four groups of square holes in total.

[0013] As a preferred technical solution of the utility model: the square hole is matched with the limiting rod, and the threaded hole is matched with the main rod and is threadedly connected.

[0014] As a preferred technical solution of the utility model: there are several groups of tightening rods with different specifications, each group of tightening rods is provided with fixing parts of the same specifications and structures, and each group of tightening rods is provided with threaded holes.

[0015] Compared with the prior art, the utility model provides an adjustable screw with adjustable specifications, which has the following beneficial effects:

[0016] 1. This adjustable screw has adjustable specifications. By setting a main rod, a limiting rod, a tightening rod, a threaded hole, and a square hole, the threaded hole at the installation position is smaller or larger. The limiting rod extending from the top of the metal end can be pulled upward to disengage the limiting rod from the square hole. At the same time, the tightening rod can be rotated at this time to disengage the tightening rod from the main rod. The tightening rod that is more suitable for the current corresponding installation position can be replaced. The specifications of the screw can be changed according to actual conditions to facilitate adapting to more installation requirements.

[0017] 2. This adjustable screw has an adjustable specification. By setting a main rod, a tightening rod and a threaded hole, when the outer spiral pattern of the screw is worn or deformed after a long period of use, a new tightening rod can be replaced to ensure the service life of the entire screw. The new tightening rod can be directly tightened on the main rod during installation, and the threaded hole on the fixing part corresponds to the limiting rod. The limiting rod is pressed downward to extend the limiting rod into the threaded hole to further limit the tightening rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the tightening rod of the utility model;

[0020] Figure 3 This is a schematic diagram of the main rod and the limiting rod of the utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the limiting rod of the utility model.

[0022] In the figure: 1, metal end; 101, main rod; 102, limiting rod; 103, ball; 104, buffer chamber; 2, tightening rod; 3, spiral pattern; 4, cross groove; 5, fixing piece; 6, threaded hole; 7, square hole. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-4 In this embodiment: an adjustable screw with adjustable specifications includes a metal end 1, a tightening rod 2 is provided at the bottom of the metal end 1, and the tightening rod 2 can facilitate the overall screw to be firmly installed in the corresponding position and form a threaded connection, a spiral pattern 3 is provided on the tightening rod 2, a cross groove 4 is provided on the top of the metal end 1, and the screw can be easily screwed through the cross groove 4, a fixing piece 5 is provided on the top of the tightening rod 2, a threaded hole 6 is provided on the fixing piece 5, and a square hole 7 is provided on the fixing piece 5, and the square hole 7 can be easily adapted to the limiting rod 102 to form a limiting effect;

[0025] The metal end 1 includes a main rod 101, a limiting rod 102, a ball 103 and a buffer cavity 104. The limiting rod 102 is arranged at the bottom of the metal end 1, and the ball 103 is arranged at the bottom of the limiting rod 102. The buffer cavity 104 is opened inside the metal end 1. The main rod 101 is arranged at the center of the bottom of the metal end 1. The ball 103 can make the contact between the fixing part 5 and the limiting rod 102 smoother.

[0026] In this embodiment, the main rod 101 is fixedly installed at the bottom center position of the metal end 1 by welding, and the limiting rod 102 is inserted into the buffer cavity 104. The top end of the limiting rod 102 extends upward from the metal end 1, and the bottom end of the limiting rod 102 extends downward from the metal end 1. The limiting rod 102 can cooperate with the square hole 7 to limit the fixing part 5 and thus limit the position of the tightening rod 2. The buffer cavity 104 can provide space for the limiting rod 102 to move; the limiting rod 102 is specifically cast as a magnet, and the metal end 1 is specifically made of iron. There is magnetic adsorption between the limiting rod 102 and the metal end 1, and the ball 103 is rotatably installed At the bottom of the limiting rod 102; the spiral pattern 3 and the tightening rod 2 are integrally formed, and the fixing part 5 is fixedly installed on the top of the tightening rod 2; the inside of the tightening rod 2 is provided with a threaded hole 6 that is the same as that on the fixing part 5 and the position corresponds, and there are four groups of square holes 7, which are convenient for the tightening rod 2 to be stably restricted by the fixing part 5; the square hole 7 is adapted to the limiting rod 102, and the threaded hole 6 and the main rod 101 are adapted to each other and have a threaded connection; there are several groups of tightening rods 2 with different specifications, and each group of tightening rods 2 is provided with a fixing part 5 of the same specification and structure, and each group of tightening rods 2 is provided with a threaded hole 6.

[0027] The working principle and use process of the utility model are as follows: in actual use, the integral screw can be directly tightened corresponding to the screw hole to be installed, and finally a matching nut can be selected for more stable installation. If the threaded hole 6 at the installation position is small or large, the limiting rod 102 extending from the top of the metal end 1 can be pulled upward to make the limiting rod 102 disengage from the square hole 7. At the same time, the tightening rod 2 can be rotated at this time to make the tightening rod 2 disengage from the main rod 101, and a tightening rod 2 that is more suitable for the current corresponding installation position can be replaced. The new tightening rod 2 can be directly tightened and installed on the main rod 101 during installation, and the threaded hole 6 on the fixing member 5 corresponds to the limiting rod 102, and the limiting rod 102 is pressed downward to make the limiting rod 102 extend into the threaded hole 6 to complete further restriction on the tightening rod 2, and the specifications of the screw can be changed according to actual conditions to facilitate adapting to more installation requirements. When the outer spiral pattern 3 of the screw is worn or deformed after a long period of use, the new tightening rod 2 can be directly replaced in the above manner to ensure the service life of the integral screw.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An adjustable screw with adjustable specifications, comprising a metal end (1), a tightening rod (2) being arranged at the bottom of the metal end (1), characterized in that: The tightening rod (2) is provided with a spiral pattern (3), the top of the metal end (1) is provided with a cross groove (4), the top of the tightening rod (2) is provided with a fixing piece (5), the fixing piece (5) is provided with a threaded hole (6), and the fixing piece (5) is provided with a square hole (7); The metal end (1) comprises a main rod (101), a limiting rod (102), a ball (103) and a buffer cavity (104); the limiting rod (102) is arranged at the bottom of the metal end (1); the ball (103) is arranged at the bottom of the limiting rod (102); the buffer cavity (104) is opened inside the metal end (1); and the main rod (101) is arranged at the center of the bottom of the metal end (1).

2. The adjustable screw according to claim 1, characterized in that: The main rod (101) is fixedly mounted at the bottom center position of the metal end (1) by welding, and the limiting rod (102) is inserted into the buffer cavity (104). The top end of the limiting rod (102) extends upward from the metal end (1), and the bottom end of the limiting rod (102) extends downward from the metal end (1).

3. The adjustable screw according to claim 1, characterized in that: The limiting rod (102) is specifically made of magnet casting, the metal end (1) is specifically made of iron, there is magnetic attraction between the limiting rod (102) and the metal end (1), and the ball (103) is rotatably mounted on the bottom of the limiting rod (102).

4. The adjustable screw according to claim 1, characterized in that: The spiral pattern (3) and the tightening rod (2) are integrally formed, and the fixing member (5) is fixedly mounted on the top of the tightening rod (2).

5. The adjustable screw according to claim 1, characterized in that: The tightening rod (2) is provided with threaded holes (6) identical to those on the fixing member (5) and corresponding in position, and there are four groups of square holes (7) in total.

6. The adjustable screw according to claim 1, characterized in that: The square hole (7) is matched with the limiting rod (102), and the threaded hole (6) and the main rod (101) are matched with each other and are threadedly connected.

7. The adjustable screw according to claim 1, characterized in that: There are several groups of tightening rods (2) with different specifications. Each group of tightening rods (2) is provided with fixing parts (5) of the same specifications and structure. Each group of tightening rods (2) is provided with threaded holes (6).

Images