Screw with chip guide structure

Abstract

The utility model discloses a screw with a chip guide structure, which comprises a screw head, a screw rod, a screw tail, a circular plate, a protective structure and a chip guide groove, the lower end of the screw head is fixedly connected with the screw rod, the lower end of the screw rod is fixedly connected with the screw tail, and the screw head, the screw rod and the screw tail are of an integrated structure. A circular plate is movably mounted at the joint of the screw head and the screw rod, a protection structure is assembled outside the screw head, a plurality of chip guide grooves are formed in the screw rod, one end of each chip guide groove extends to the lower end of the screw tail, and the other end of each chip guide groove extends to the upper end of the screw rod. According to the screw, chippings generated in the drilling process of the screw can be discharged outwards along with the chipping guide groove, drilling difficulty caused by chipping accumulation is avoided, and the screw head can be prevented from being eroded by external moisture due to the arrangement of the protection structure.

Description

[Technical field]

[0001] The utility model relates to the technical field of screws, in particular to the technical field of screws with a chip guide structure. [Background technology]

[0002] Screws are tools that use the physical and mathematical principles of the inclined circular rotation of an object and the friction force to gradually tighten objects and machine parts. Screws are an indispensable industrial necessity in daily life. Screws have important tasks in industry. As long as there is industry on the earth, the function of screws will always be important.

[0003] However, when the screws in the prior art are in use, the connection strength between the head and the screw part is not high and is easily disconnected, resulting in damage to the screw; and one end of the screw part of the prior art is connected to the head, and the other end is threaded, and because the screw is provided with a thread, one end is generally arranged outside, without protection and is easily worn.

[0004] In order to solve the problems raised in the background technology, for example, application number CN201420686371.5 discloses a high-strength screw, including a head and a screw, characterized in that: a reinforcement block is provided at the connection between the head and the screw, and the outer layer of the screw is coated with an alloy reinforcement layer, the head, the screw and the reinforcement block are all made of high-strength steel material, and a reinforcement block is provided at the connection between the head and the screw, so that the screw is not easily twisted off when subjected to a huge external force, and because the outer layer of the screw is coated with an alloy reinforcement layer, the outer layer of the screw is not easy to wear, which greatly extends the service life of the screw, but the structure still has the following shortcomings:

[0005] 1. Although the screw is provided with a reinforcement block to improve the overall strength, it lacks a chip guide structure, so that the chips generated by the screw in the process of drilling into the workpiece cannot be discharged outward in time, and then accumulate in the hole, making it difficult to drill the screw, reducing the use effect.

[0006] 2. The screw lacks a head protection structure, so the screw head is exposed to the outside for a long time. Due to the erosion of moisture in the air, it will rust, causing the hardness to decrease, which is not conducive to disassembly and assembly operations with disassembly tools. [Utility Model Content]

[0007] The purpose of the utility model is to solve the problems in the prior art and to propose a screw with a chip guide structure, which can enable the chips generated during the drilling process of the screw to be discharged outward along the chip guide groove, thereby avoiding the accumulation of chips and causing difficulties in drilling. In addition, a protective structure is provided to prevent the screw head from being corroded by external moisture.

[0008] To achieve the above-mentioned purpose, the utility model proposes a screw with a chip guide structure, including a screw head, a screw rod, a screw tail, a circular plate, a protective structure, and a chip guide groove, the lower end of the screw head is fixedly connected to the screw rod, the lower end of the screw rod is fixedly connected to the screw tail, the screw head, screw rod, and screw tail are an integrated structure, a circular plate is movably installed at the connection between the screw head and the screw rod, the outside of the screw head is equipped with a protective structure, a plurality of chip guide grooves are opened on the screw rod, one end of the chip guide groove extends to the lower end of the screw tail, and the other end of the chip guide groove extends to the upper end of the screw rod.

[0009] Preferably, a cross groove is provided in the middle of the top end of the screw head.

[0010] Preferably, the outside of the screw rod is provided with an external thread, a threaded hole matching the external thread is opened in the middle of the circular plate, and the circular plate is threadedly mounted on the outside of the screw rod through the threaded hole.

[0011] Preferably, a plurality of drainage openings are provided on the circular plate, and the plurality of drainage openings are distributed in a circular ring shape.

[0012] Preferably, the protective structure includes a protective cap, a fixing hole and a locking nail. The internal size of the protective cap is adapted to the external size of the screw head. The side wall of the protective cap is symmetrically provided with a fixing hole, and locking nails are threadedly installed on both of the fixing holes.

[0013] Preferably, a second fixing hole corresponding to the first fixing hole is symmetrically arranged on the side wall of the screw head, and the tail end of the locking nail passes through the interior of the first fixing hole and the second fixing hole in sequence.

[0014] Preferably, the protective cap is a stainless steel protective cap.

[0015] Beneficial effects of the utility model:

[0016] 1. The utility model can prevent chips from accumulating in the hole by arranging a plurality of chip guide grooves. When the screw is drilled, the chips generated will be discharged outward from the bottom end of the chip guide groove from bottom to top, thereby preventing the chips from accumulating in the hole, thereby increasing the penetration speed of the screw, improving the use effect of the screw, thereby increasing the processing efficiency, and solving the problem that the chips generated by the screw in the process of drilling into the workpiece cannot be discharged outward in time and then accumulate in the hole.

[0017] 2. The utility model can prevent the screw head from being corroded by external moisture through the coordinated use of the protective structure and the circular plate. The protective cap is put on the screw head, and the fixing hole 1 on the protective cap is aligned with the fixing hole 2 on the screw head. Then, the locking nail is screwed into the fixing hole 1 and the fixing hole 2 using a tool, thereby fixing the protective cap to the screw head and preventing the protective cap from falling off the screw head, thereby isolating the screw head from contact with external moisture and playing an anti-corrosion role. Moreover, the circular plate is threadedly installed at the bottom end of the screw head, which can further prevent external air from entering the screw head from the bottom of the protective cap, effectively protecting the screw head and solving the problem of rust caused by the erosion of moisture in the air due to long-term exposure to the outside.

Brief Description of the Drawings

[0018] Figure 1 This is a front view of a screw with a chip guide structure of the utility model;

[0019] Figure 2 It is an exploded view of a screw with a chip guide structure of the utility model;

[0020] Figure 3 It is a schematic diagram of a circular plate with a chip guide structure screw of the utility model;

[0021] In the figure: 1-screw head, 2-screw rod, 21-external thread, 3-screw tail, 4-round plate, 41-threaded hole, 42-drain port, 5-protective structure, 51-protective cap, 52-fixing hole one, 53-locking nail, 6-chip guide groove, 7-cross groove, 8-fixing hole two. [Specific implementation method]

[0022] See also Figures 1 to 3 The utility model discloses a screw with a chip guide structure, comprising a screw head 1, a screw rod 2, a screw tail 3, a circular plate 4, a protective structure 5, and a chip guide groove 6. The lower end of the screw head 1 is fixedly connected with the screw rod 2, and the lower end of the screw rod 2 is fixedly connected with the screw tail 3. The screw head 1, the screw rod 2, and the screw tail 3 are an integrated structure. A circular plate 4 is movably installed at the connection between the screw head 1 and the screw rod 2. The outside of the screw head 1 is equipped with a protective structure 5. A plurality of chip guide grooves 6 are provided on the screw rod 2. One end of the chip guide groove 6 extends to the lower end of the screw tail 3, and the other end of the chip guide groove 6 extends to the upper end of the screw rod 2. A cross groove 7 is provided in the middle of the top of the screw head 1. By arranging a plurality of chip guide grooves 6, it is possible to prevent chips from accumulating in the hole. When the screw is drilled, the chips generated will be discharged from the bottom of the chip guide groove 6 from the bottom to the top, thereby preventing the chips from accumulating in the hole, thereby improving the penetration speed of the screw, improving the use effect of the screw, and thus increasing the processing efficiency.

[0023] See also Figure 2 and Figure 3 The utility model discloses a screw with a chip guide structure. The outside of the screw rod 2 is provided with an external thread 21. The middle of the circular plate 4 is provided with a threaded hole 41 matched with the external thread 21. The circular plate 4 is threadedly installed on the outside of the screw rod 2 through the threaded hole 41. By threading the circular plate 4 on the bottom end of the screw head 1, it is possible to further prevent outside air from entering the screw head 1 from the bottom of the protective cap 51, thereby effectively protecting the screw head 1.

[0024] See also Figure 3 The utility model is a screw with a chip guide structure. The circular plate 4 is provided with a plurality of drainage openings 42, and the plurality of drainage openings 42 are distributed in a circular ring shape. By providing a plurality of drainage openings 42 on the circular plate 4, accumulated water can flow out from the drainage openings 42 to avoid accumulation of accumulated water around the screw head 1, thereby reducing the possibility of accumulated water penetrating into the interior of the screw head 1.

[0025] See also Figure 2 The utility model provides a screw with a chip guide structure, the protective structure 5 includes a protective cap 51, a fixing hole 52, and a locking nail 53. The internal size of the protective cap 51 is adapted to the external size of the screw head 1, the side wall of the protective cap 51 is symmetrically provided with a fixing hole 52, and the two fixing holes 52 are both threadedly installed with locking nails 53, and the side wall of the screw head 1 is symmetrically provided with a fixing hole 8 corresponding to the fixing hole 52, and the tail end of the locking nail 53 passes through the interior of the fixing hole 52 and the fixing hole 8 in turn. By putting the protective cap 51 on the screw head 1, aligning the fixing hole 52 on the protective cap 51 with the fixing hole 8 on the screw head 1, and then using a tool to screw the locking nail 53 into the fixing hole 52 and the fixing hole 8, the protective cap 51 and the screw head 1 are fixed, so as to prevent the protective cap 51 from falling off the screw head 1, thereby isolating the screw head 1 from contacting with external moisture, thereby playing an anti-corrosion role.

[0026] See also Figure 2 The utility model discloses a screw with a chip guide structure. The protective cap 51 is made of a stainless steel protective cap. The stainless steel protective cap has the characteristics of corrosion resistance, high strength, high temperature resistance, hygiene, aesthetics, recyclability and wear resistance, thereby effectively protecting the screw head 1, making the screw head 1 not easily damaged and facilitating subsequent disassembly and assembly operations.

[0027] Working process of this utility model:

[0028] The utility model discloses a screw with a chip guide structure. During the working process, a plurality of chip guide grooves 6 are provided to prevent chips from accumulating in the hole. When the screw is drilled, the chips generated will be discharged outward from the bottom end of the chip guide groove 6 from bottom to top, thereby preventing the chips from accumulating in the hole, thereby improving the penetration speed of the screw, improving the use effect of the screw, and thus increasing the processing efficiency. By putting the protective cap 51 on the screw head 1, and aligning the fixing hole 1 52 on the protective cap 51 with the fixing hole 2 8 on the screw head 1, and then using a tool to screw the locking nail 53 into the fixing hole 1 52 and the fixing hole 2 8, the protective cap 51 and the screw head 1 are fixed, and the protective cap 51 is prevented from falling off the screw head 1, thereby isolating the screw head 1 from contacting with external moisture, and playing an anti-corrosion role. Moreover, by threading the circular plate 4 on the bottom end of the screw head 1, it is possible to further prevent external air from entering the screw head 1 from the bottom of the protective cap 51, thereby effectively protecting the screw head 1, making the screw head 1 not easily damaged, and facilitating subsequent disassembly and assembly operations.

[0029] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A screw with a chip guide structure, characterized in that: The invention comprises a screw head (1), a screw rod (2), a screw tail (3), a circular plate (4), a protective structure (5), and a chip guide groove (6); the lower end of the screw head (1) is fixedly connected to the screw rod (2); the lower end of the screw rod (2) is fixedly connected to the screw tail (3); the screw head (1), the screw rod (2), and the screw tail (3) are an integrated structure; a circular plate (4) is movably mounted at the connection between the screw head (1) and the screw rod (2); the outer portion of the screw head (1) is equipped with a protective structure (5); a plurality of chip guide grooves (6) are provided on the screw rod (2); one end of the chip guide groove (6) extends to the lower end of the screw tail (3), and the other end of the chip guide groove (6) extends to the upper end of the screw rod (2).

2. A screw with a chip guide structure as claimed in claim 1, characterized in that: A cross groove (7) is provided in the middle of the top end of the screw head (1).

3. A screw with a chip guide structure as claimed in claim 1, characterized in that: The outside of the screw rod (2) is provided with an external thread (21), the middle of the circular plate (4) is provided with a threaded hole (41) matched with the external thread (21), and the circular plate (4) is threadedly mounted on the outside of the screw rod (2) through the threaded hole (41).

4. A screw with a chip guide structure as claimed in claim 1, characterized in that: The circular plate (4) is provided with a plurality of drainage openings (42), and the plurality of drainage openings (42) are distributed in a circular ring shape.

5. The screw with a chip guide structure according to claim 1, characterized in that: The protective structure (5) comprises a protective cap (51), a fixing hole (52), and a locking pin (53); the inner dimensions of the protective cap (51) are adapted to the outer dimensions of the screw head (1); the fixing holes (52) are symmetrically arranged on the side wall of the protective cap (51); and the locking pins (53) are threadedly mounted on the two fixing holes (52).

6. A screw with a chip guide structure as claimed in claim 5, characterized in that: The side wall of the screw head (1) is symmetrically provided with a second fixing hole (8) corresponding to the first fixing hole (52), and the tail end of the locking nail (53) passes through the interior of the first fixing hole (52) and the second fixing hole (8) in sequence.

7. The screw with a chip guide structure according to claim 5, characterized in that: The protective cap (51) is a stainless steel protective cap.

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