Self-tapping screw convenient to use

Abstract

The utility model discloses a self-tapping screw convenient to use, which comprises a screwing end, a thread fixing rod, rotary cutting blades and a screw head, the screwing end is arranged at the upper end of the thread fixing rod, the screw head is fixedly connected to the bottom end of the thread fixing rod, the rotary cutting blades are uniformly arranged on the screw head, and the rotary cutting blades are arranged on the screw head. The screw heads are evenly and fixedly distributed on the outer portion of the rotary cutting blade in an inclined mode. The auxiliary screwing block and the main screwing end can be used for rotating the threaded fixing rod, in the continuous rotating use and disassembly process, the auxiliary screwing block is firstly abraded and deformed, and when the auxiliary screwing block is repeatedly disassembled and used and is deformed in a screwing mode, the auxiliary screwing block can be conveniently and rapidly taken down, so that the labor intensity of workers is reduced, and the labor intensity of workers is reduced. And at the moment, the threaded fixing rod can still be rotated for use through the main screwing end, so that the screw can be stably, conveniently and repeatedly disassembled for use for a long time.

Description

Technical Field

[0001] The utility model relates to the technical field of self-tapping screw production, in particular to a self-tapping screw that is easy to use. Background Art

[0002] A self-tapping screw is a special screw, which is characterized by being able to tap into the material of the connected part by itself during connection to form a corresponding internal thread. This type of screw is usually used to connect thin metal plates, plastics or other softer materials, but the existing self-tapping screws cannot be quickly inserted into the interior of the fixed part during use, and the front end is easily obstructed and deflected during the forward movement, causing cracks on the fixed workpiece, and the screwing end is severely worn during use and disassembly, so the self-tapping screw cannot be quickly and labor-savingly screwed out, making repeated use inconvenient. Therefore, a device is needed to solve the above-mentioned problems. Utility Model Content

[0003] The purpose of the utility model is to provide a self-tapping screw that is easy to use, so as to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a self-tapping screw that is easy to use, comprising a screwing end, a threaded fixing rod, a rotary cutting blade and a screw head, the screwing end is arranged at the upper end of the threaded fixing rod, the screw head is fixedly connected to the bottom end of the threaded fixing rod, and the rotary cutting blade is evenly arranged on the screw head.

[0005] Preferably, the screw heads are evenly and fixedly distributed on the outside of the rotary cutting blade in an inclined shape.

[0006] Preferably, the screwing end includes an auxiliary screwing block, a main screwing end, a pressing limit plate and an extrusion gasket, the extrusion gasket is fixedly connected to the bottom end of the main screwing end, the auxiliary screwing block is clamped inside the main screwing end, the pressing limit plate is evenly slidably clamped on the main screwing end, and the upper end surface of the auxiliary screwing block is located at the bottom end surface of the pressing limit plate.

[0007] Preferably, the auxiliary screwing block and the main screwing end are both arranged in a hexagonal column shape, and the auxiliary screwing block is evenly provided with fixing screwing grooves.

[0008] Preferably, an auxiliary fixing bolt is evenly threadedly inserted on the main screwing end, and the bottom end of the auxiliary fixing bolt is in extrusion contact with the upper end surface of the pressing and limiting plate.

[0009] Preferably, the bottom end of the extrusion gasket is fixedly connected to the upper end of the threaded fixing rod.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] The utility model can use the auxiliary screwing block and the main screwing end head to rotate the threaded fixing rod, and in the process of continuous rotation and disassembly, the auxiliary screwing block is first worn and deformed. When the auxiliary screwing block is repeatedly disassembled and screwed and deformed, the auxiliary screwing block can be conveniently and quickly removed. At this time, the threaded fixing rod can still be rotated and used through the main screwing end head, so that the screw can be repeatedly disassembled and used stably and conveniently for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the main three-dimensional structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the screw head structure in the utility model;

[0014] Figure 3 It is a schematic diagram of the screwing end structure in the utility model.

[0015] In the figure: 1-screwing end, 2-threaded fixing rod, 3-peeling blade, 4-screw head, 5-auxiliary screwing block, 6-fixed screwing groove, 7-main screwing end, 8-auxiliary fixing bolt, 9-pressing limit plate, 10-extrusion gasket. DETAILED DESCRIPTION

[0016] 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.

[0017] See also Figure 1-3The utility model provides an embodiment: a self-tapping screw that is easy to use, including a screwing end 1, a threaded fixing rod 2, a peeling blade 3 and a screw head 4, the screwing end 1 is arranged at the upper end of the threaded fixing rod 2, the screw head 4 is fixedly connected to the bottom end of the threaded fixing rod 2, the peeling blade 3 is evenly arranged on the screw head 4, the screw head 4 is evenly fixedly distributed on the outside of the peeling blade 3 in an inclined shape, so that the peeling blade 3 can be quickly screwed and inserted between the plates, the screwing end 1 includes an auxiliary screwing block 5, a main screwing end 7, a pressing limit plate 9 and an extrusion gasket 10, the extrusion gasket 10 is fixedly connected to the bottom end of the main screwing end 7, the auxiliary screwing block 5 is clamped on the main screwing end 7 Inside the screwing end 7, the pressing limit plate 9 is evenly slidably clamped on the main screwing end 7, and the upper end surface of the auxiliary screwing block 5 is located at the bottom end surface of the pressing limit plate 9. The auxiliary screwing block 5 and the main screwing end 7 can be used to rotate the threaded fixing rod 2, and in the process of continuous rotation and disassembly, the auxiliary screwing block 5 is first worn and deformed. When the auxiliary screwing block 5 is repeatedly disassembled and screwed and deformed, the auxiliary screwing block 5 can be conveniently and quickly removed. At this time, the threaded fixing rod 2 can still be rotated and used through the main screwing end 7, so that the screw can be repeatedly disassembled and used stably and conveniently for a long time.

[0018] The auxiliary screwing block 5 and the main screwing end 7 are both hexagonal prism-shaped, and the auxiliary screwing block 5 is evenly provided with fixing screwing grooves 6, so that the auxiliary screwing block 5 and the main screwing end 7 are conveniently fixed and screwed, and the auxiliary screwing block 5 can be screwed and rotated in various ways.

[0019] An auxiliary fixing bolt 8 is evenly threaded and inserted on the main screwing end 7, and the bottom end of the auxiliary fixing bolt 8 is squeezed and contacted with the upper end surface of the pressing limit plate 9. The pressing limit plate 9 can be limited and fixed by the set auxiliary fixing bolt 8.

[0020] The bottom end of the extrusion gasket 10 is fixedly connected to the upper end of the threaded fixing rod 2 , and the extrusion gasket 10 plays a role of extrusion and fitting.

[0021] Working principle: In practical use, the threaded fixing rod 2 and the screw head 4 can be screwed for use by the auxiliary screwing block 5 arranged inside the main screwing end 7. The clamping screwing groove 6 arranged on the auxiliary screwing block 5 can make the auxiliary screwing block 5 screwed and rotated in various ways, which is convenient for rotating the auxiliary screwing block 5. When the threaded fixing rod 2 and the screw head 4 are screwed and inserted for use, the rotary cutting blades 3 evenly arranged outside the screw head 4 can make the screw head 4 quickly screwed into the inside of the plate, so that the screw head 4 and the threaded fixing rod 2 can be smoothly and quickly screwed and inserted into the plate, making the plate not easy to break, and the threaded fixing rod 2 can be screwed for a long time by the auxiliary screwing block 5 set After repeatedly screwing and inserting into the plate, when the screwed and fixed part of the auxiliary screwing block 5 is worn and deformed, each pressing limit plate 9 can be removed from the main screwing end head 7 by screwing the auxiliary fixing bolt 8. At this time, each pressing limit plate 9 no longer blocks and limits the auxiliary screwing block 5 fixed inside the main screwing end head 7, so that the auxiliary screwing block 5 can be removed from the main screwing end head 7. At this time, the screw support can continue to be used for screwing through the intact main screwing end head 7, so that the screw can be disassembled and used repeatedly for a long time. During continuous use, there is no need to worry about severe wear and deformation of the screwing end, so that the screw can be conveniently disassembled and used continuously for a long time.

[0022] 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 self-tapping screw that is easy to use, comprising a screwing end (1), a threaded fixing rod (2), a rotary cutting blade (3) and a screw head (4), characterized in that: The screwing end (1) is arranged at the upper end of the threaded fixing rod (2), the screw head (4) is fixedly connected to the bottom end of the threaded fixing rod (2), the rotary cutting blade (3) is evenly arranged on the screw head (4), the screwing end (1) comprises an auxiliary screwing block (5), a main screwing end (7), a pressing limit plate (9) and an extrusion gasket (10), the extrusion gasket (10) is fixedly connected to the bottom end of the main screwing end (7), the auxiliary screwing block (5) is clamped inside the main screwing end (7), the pressing limit plate (9) is evenly slidably clamped on the main screwing end (7), and the upper end surface of the auxiliary screwing block (5) is located at the bottom end surface of the pressing limit plate (9).

2. A self-tapping screw convenient to use according to claim 1, characterized in that: The screw heads (4) are evenly and fixedly distributed on the outside of the rotary cutting blade (3) in an inclined shape.

3. A self-tapping screw convenient to use according to claim 2, characterized in that: The auxiliary screwing block (5) and the main screwing end (7) are both arranged in a hexagonal column shape, and the auxiliary screwing block (5) is evenly provided with locking screwing grooves (6).

4. A self-tapping screw convenient to use according to claim 3, characterized in that: An auxiliary fixing bolt (8) is evenly threadedly inserted on the main screwing end (7), and the bottom end of the auxiliary fixing bolt (8) is in extrusion contact with the upper end surface of the pressing limit plate (9).

5. A self-tapping screw convenient to use according to claim 4, characterized in that: The bottom end of the extrusion gasket (10) is fixedly connected to the upper end of the threaded fixing rod (2).

Images