High-strength screw

Abstract

The utility model relates to the field of screws, and discloses a high-strength screw which comprises an expansion screw, the outer wall of the expansion screw is fixedly connected with an external thread, and a separation groove is formed in the front face of the expansion screw. According to the high-strength screw rod, through the arrangement of the expansion screw rod, the external thread, the separation groove, the limiting ring, the fastening screw rod, the knob block and the internal thread, the screw rod can have the effect of high strength, the stable and firm connection effect can be achieved through expansion of the expansion screw rod in the hole and the locking effect of the external thread, and the screw rod is convenient to use. The connection mode is suitable for various materials, and the design of the internal threads and the knob block is used, so that the mounting and dismounting processes are simpler, more convenient and faster. A user can easily achieve fastening and loosening only by rotating the knob block, special tools or equipment are not needed, the expansion screw can meet the requirements of different hole diameters and hole depths through the arrangement of the separation groove and the limiting ring, and the use requirements of people are met.

Description

Technical Field

[0001] The utility model relates to the field of screw rods, in particular to a high-strength screw rod. Background Art

[0002] A screw is a cylinder with a spiral groove cut on the outer surface or a cone with a spiral groove cut on the conical surface, usually composed of a threaded part and a nut. It has different heads, such as external hexagonal screws, large flat screws, internal hexagonal screws, etc. Screws are widely used in many fields, such as construction, transportation, manufacturing, etc. In the construction field, screws are mainly used to fix and connect various components, such as steel structures, wood structures, concrete structures, etc. When building a frame structure, screws can be used to connect components such as beams and columns to improve the stability and bearing capacity of the structure.

[0003] The existing technology has the following problems:

[0004] In the prior art, the screw strength is low. After the screw is installed in the desired position, it is easy for the screw to become loose due to the length of use. Once the screw becomes loose, it is easy for the screw to fall off and fail to provide reinforcement stability. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a high-strength screw having advantages such as high strength, and solves the problems in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose of high strength, the utility model provides the following technical solution: a high-strength screw, including an expansion screw, the outer wall of the expansion screw is fixedly connected with an external thread, and a separation groove is opened on the front side of the expansion screw.

[0009] The outer wall of the expansion screw is fixedly connected with a limit ring, and the inner wall of the expansion screw is movably connected with a fastening screw, which can make the screw have high strength. Through the expansion of the expansion screw in the hole, combined with the locking effect of the external thread, a stable and firm connection effect can be achieved. This connection method is suitable for a variety of materials. The design of the internal thread and the knob block makes the installation and disassembly process simpler and faster. Users can easily tighten and loosen by rotating the knob block without using special tools or equipment. The setting of the separation groove and the limit ring enables the expansion screw to adapt to the needs of different hole diameters and hole depths, meeting people's needs.

[0010] Preferably, the number of the dividing grooves is four, and the four dividing grooves are equidistantly arranged on the outer wall of the expansion screw. The four dividing grooves allow the expansion screw to be expanded toward four corners after being stretched, so as to better fit the installation groove.

[0011] Preferably, the inner wall of the expansion screw is provided with an internal thread, and the expansion screw is movably connected to the fastening screw via the internal thread, and the internal thread enables the fastening screw to be rotatably mounted on the inner wall of the expansion screw.

[0012] Preferably, one end of the fastening screw is fixedly connected to a knob block, and the fastening screw can be adjusted for rotation, assembly, and disassembly by rotating the knob block.

[0013] Preferably, the outer wall of the fastening screw is movably connected with a screw pad, and particles are provided on the surface of the screw pad to increase the friction provided by the screw pad, thereby ensuring the installation stability of the fastening screw.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a high-strength screw having the following beneficial effects:

[0016] The high-strength screw rod has high strength through the expansion screw rod, external thread, separation groove, limit ring, tightening screw rod, knob block and internal thread. The expansion of the expansion screw rod in the hole and the locking effect of the external thread can achieve a stable and firm connection effect. This connection method is suitable for a variety of materials. The design of the internal thread and knob block makes the installation and removal process easier and faster. Users can easily tighten and loosen by rotating the knob block without using special tools or equipment. The setting of the separation groove and the limit ring enables the expansion screw rod to adapt to the needs of different hole diameters and hole depths, meeting people's needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the expansion screw of the utility model;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the screw pad of the utility model.

[0020] In the figure: 1. expansion screw; 2. external thread; 3. separation groove; 4. limit ring; 5. fastening screw; 6. screw pad; 7. knob block; 8. internal thread. DETAILED DESCRIPTION

[0021] 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.

[0022] Example 1

[0023] The preferred embodiment of the high-strength screw provided by the utility model is as follows Figures 1 to 3 As shown: a high-strength screw includes an expansion screw 1, an outer wall of the expansion screw 1 is fixedly connected with an external thread 2, and a separation groove 3 is opened on the front side of the expansion screw 1.

[0024] The outer wall of the expansion screw 1 is fixedly connected with a limit ring 4, and the inner wall of the expansion screw 1 is movably connected with a fastening screw 5, which can make the screw have a high strength. Through the expansion of the expansion screw 1 in the hole, combined with the locking effect of the external thread 2, a stable and firm connection effect can be achieved. This connection method is suitable for a variety of materials. The design of the internal thread 8 and the knob block 7 makes the installation and disassembly process simpler and faster. Users can easily tighten and loosen by rotating the knob block 7 without using special tools or equipment. The setting of the separation groove 3 and the limit ring 4 enables the expansion screw 1 to adapt to the needs of different hole diameters and hole depths, meeting people's use needs.

[0025] In this embodiment, there are four dividing grooves 3, and the four dividing grooves 3 are equidistantly arranged on the outer wall of the expansion screw 1. The four dividing grooves 3 allow the expansion screw 1 to be expanded toward four corners after being stretched, so as to better fit the installation groove.

[0026] Example 2

[0027] Based on Example 1, a preferred embodiment of the high-strength screw provided by the utility model is as follows Figures 1 to 3 As shown: the inner wall of the expansion screw 1 is provided with an internal thread 8, and the expansion screw 1 is movably connected to the fastening screw 5 through the internal thread 8, and the internal thread 8 enables the fastening screw 5 to be installed on the inner wall of the expansion screw 1 in a rotatable manner.

[0028] In this embodiment, one end of the fastening screw 5 is fixedly connected to a knob block 7 , and the fastening screw 5 can be adjusted for rotation, assembly, or disassembly by rotating the knob block 7 .

[0029] Furthermore, the outer wall of the fastening screw 5 is movably connected with a screw pad 6 , and particles are arranged on the surface of the screw pad 6 to increase the friction provided by the screw pad 6 , thereby ensuring the installation stability of the fastening screw 5 .

[0030] When in use, after the expansion screw 1 is installed at the desired position, the fastening screw 5 can be installed on the inner wall of the expansion screw 1 through the knob block 7, so that the fastening screw 5 can be used to expand the expansion screw 1, so that the expansion screw 1 can be more closely fitted with the hole groove at the desired installation position after being expanded, thereby completing the work.

[0031] To sum up, the high-strength screw can achieve the purpose of high strength. The expansion screw 1 can be installed in a simple and quick way, and then the expansion screw 1 can be stretched open by the fastening screw 5 to improve the fit of the expansion screw 1 to the installation groove, avoid the problem of looseness causing falling off, and meet people's usage needs.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although 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 of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength screw, comprising an expansion screw (1), characterized in that: The outer wall of the expansion screw (1) is fixedly connected with an external thread (2), and the front surface of the expansion screw (1) is provided with a separation groove (3); The outer wall of the expansion screw (1) is fixedly connected to a limit ring (4), and the inner wall of the expansion screw (1) is movably connected to a fastening screw (5).

2. A high-strength screw according to claim 1, characterized in that: The number of the separation grooves (3) is four, and the four separation grooves (3) are arranged at equal distances on the outer wall of the expansion screw (1).

3. A high-strength screw according to claim 1, characterized in that: The inner wall of the expansion screw (1) is provided with an internal thread (8), and the expansion screw (1) is movably connected to the fastening screw (5) via the internal thread (8).

4. A high-strength screw according to claim 1, characterized in that: One end of the fastening screw rod (5) is fixedly connected to a knob block (7).

5. A high-strength screw according to claim 1, characterized in that: The outer wall of the fastening screw (5) is movably connected with a screw pad (6).

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