CN217603113U

CN217603113U - Screw with chip guide function

Info

Publication number: CN217603113U
Application number: CN202221588270.5U
Authority: CN
Inventors: 王峰伟
Original assignee: Zhejiang Xinshengda Metal Technology Development Co ltd
Current assignee: Zhejiang Xinshengda Metal Technology Development Co ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-10-18
Anticipated expiration: 2032-06-23

Abstract

The utility model discloses a screw with lead bits function, move head, main part pole, bore the tail, lead chip groove, chip groove including twisting, twisting the bottom center of moving the head and being fixed with a main part pole, be equipped with the external screw thread on the outer wall of main part pole, the bottom of main part pole is equipped with and bores the tail, twists head, main part pole, bores the tail formula structure as an organic whole, be equipped with a chip groove on the main part pole, lead the chip groove upwards extend to the top of main part pole from the bottom spiral of main part pole, twist the bottom of moving the head and be equipped with a chip groove, the chip groove all establishes the opening on twisting the bottom of moving the head and lateral wall, and the chip groove is linked together with the top of leading the chip groove. The utility model discloses a to lead chip groove and cooperate for the screw when twisting in the wood timely with the saw-dust discharge, avoid the saw-dust to gather in the inside in hole, the wood is difficult to be propped and splits, the effectual plastic and the safety in utilization of having guaranteed the wood.

Description

Screw with chip guide function

[ technical field ] A

The utility model relates to a technical field of fastener, especially the technical field who bores tail screw.

[ background of the invention ]

A screw is a commonly used fastener that can be drilled directly into an object without the need for pre-drilling holes. When the object to be drilled is solid wood, chips generated by the screw during drilling are accumulated inside the hole, and the solid wood is easily cracked.

[ Utility model ] content

The utility model aims at solving the problem in the prior art, providing a screw with lead bits function, the piece that produces when can making drilling in time discharges.

In order to realize the above-mentioned purpose, the utility model provides a screw with chip guide function, move head, main part pole, bore tail, chip guide groove, chip groove including twisting, twist the bottom center of moving the head and be fixed with a main part pole, be equipped with the external screw thread on the outer wall of main part pole, the bottom of main part pole is equipped with the drill tail, twists head, main part pole, drill tail formula structure as an organic whole, be equipped with a chip guide groove on the main part pole, the chip guide groove upwards extends to the top of main part pole from the bottom spiral of main part pole, the bottom of twisting the head is equipped with a chip groove, and the chip groove all establishes the opening on twisting the bottom of moving the head and lateral wall, and the chip groove is linked together with the top of chip guide groove.

Preferably, the width of the chip guide groove gradually increases from bottom to top, and the bottom end of the chip guide groove is located outside the projection of the drill tail on the bottom end of the main body rod.

Preferably, the top end of the screwing head is provided with a screwing groove, and the cross section of the screwing groove is in a regular hexagon shape.

Preferably, the bottom of the screwing head is provided with a gasket, the top end of the gasket is provided with a fixed sleeve, the gasket and the fixed sleeve are of an integrated structure, the fixed sleeve is sleeved on the screwing head, the fixed sleeve is provided with an auxiliary groove matched with the chip removal groove, and the auxiliary groove is communicated with the chip removal groove.

Preferably, the inner diameter of the washer is larger than the outer diameter of the screwing head, the screwing head is a cylinder with a regular polygon horizontal section, the shape of the fixing sleeve is matched with that of the screwing head, and the inner wall of the fixing sleeve is tightly attached to the outer wall of the fixing sleeve.

Preferably, the gasket is a rubber gasket.

Preferably, the projection of the drill tail at the bottom end of the main rod is positioned in the area surrounded by the external thread.

Preferably, the helical direction of the chip guide groove is opposite to the helical direction of the external thread.

The utility model has the advantages that: the chip guide groove and the chip discharge groove are matched, so that saw dust can be timely discharged when the screw is screwed into solid wood, the saw dust is prevented from accumulating inside the hole, the solid wood is not easy to prop and crack, and the integrity and the use safety of the solid wood are effectively guaranteed; the setting of packing ring makes the difficult not hard up after the screw is screwed up, the effectual fixed effect of having guaranteed.

The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.

[ description of the drawings ]

Fig. 1 is a front view of a screw with chip guide function according to the present invention.

In the figure: 1-screwing head, 2-main body rod, 3-drill tail, 4-gasket, 10-screwing groove, 11-chip groove, 20-external thread, 21-chip guide groove, 40-fixing sleeve and 41-auxiliary groove.

[ detailed description ] A

Referring to fig. 1, the utility model relates to a screw with scrap guiding function, which comprises a screwing head 1, a main body rod 2, a drill tail 3, a scrap guiding groove 21 and a scrap discharging groove 11, a main body rod 2 is fixed at the center of the bottom of the twisting head 1, external threads 20 are arranged on the outer wall of the main body rod 2, a drill tail 3 is arranged at the bottom of the main body rod 2, the twisting head 1, the main body rod 2 and the drill tail 3 are of an integrated structure, the main body rod 2 is provided with a chip guide groove 21, the chip guide groove 21 extends upwards from the bottom of the main body rod 2 to the top end of the main body rod 2, the bottom of the screwing head 1 is provided with a chip groove 11, the chip groove 11 is provided with openings at the bottom end and the side wall of the screwing head 1, the chip groove 11 is communicated with the top end of the chip guide groove 21, the width of the chip guide groove 21 is gradually increased from bottom to top, the bottom end of the chip guide groove 21 is positioned outside the projection of the drill tail 3 at the bottom end of the main body rod 2, the top end of the screwing head 1 is provided with a screwing groove 10, the section of the screwing groove 10 is in a regular hexagon shape, the bottom of the screwing head 1 is provided with a gasket 4, the top end of the gasket 4 is provided with a fixed sleeve 40, the gasket 4 and the fixed sleeve 40 are in an integral structure, the fixed sleeve 40 is sleeved on the screwing head 1, the fixed sleeve 40 is provided with an auxiliary groove 41 matched with the chip groove 11, the auxiliary groove 41 is communicated with the chip groove 11, the inner diameter of the washer 4 is larger than the outer diameter of the screwing head 1, the screwing head 1 is a cylinder with a regular polygon horizontal section, the shape of the fixing sleeve 40 is matched with that of the screwing head 1, the inner wall of the fixing sleeve 40 is tightly attached to the outer wall of the fixing sleeve 40, the gasket 4 is a rubber gasket, the projection of the drill tail 3 at the bottom end of the main body rod 2 is located in the area surrounded by the external thread 20, and the spiral direction of the chip guide groove 21 is opposite to the spiral direction of the external thread 20.

The utility model discloses the working process:

in the working process of the screw with the scrap guiding function, the scrap guiding groove 21 is matched with the scrap discharging groove 11, so that sawdust can be discharged in time when the screw is screwed into solid wood, the sawdust is prevented from accumulating inside the hole, the solid wood is not easy to chap, and the complete shape and the use safety of the solid wood are effectively ensured; the setting of packing ring 4 makes the difficult not hard up after the screw is screwed up, the effectual fixed effect of having guaranteed.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. The utility model provides a screw with lead bits function which characterized in that: move head (1), main part pole (2), bore tail (3), chip guide groove (21), chip groove (11) including twisting, twist the bottom center of moving head (1) and be fixed with one main part pole (2), be equipped with external screw thread (20) on the outer wall of main part pole (2), the bottom of main part pole (2) is equipped with and bores tail (3), twists head (1), main part pole (2), bores tail (3) formula structure as an organic whole, be equipped with one chip guide groove (21) on main part pole (2), chip guide groove (21) upwards extend to the top of main part pole (2) from the bottom spiral of main part pole (2), the bottom of twisting head (1) is equipped with one chip groove (11), and all establish the opening on the bottom and the lateral wall of twisting head (1) chip groove (11), and the top of chip guide groove (21) is linked together.

2. A screw having a chip guide function as claimed in claim 1, wherein: lead chip groove (21) upwards width grow gradually from bottom to top, the bottom of leading chip groove (21) is located bores the outside of tail (3) in the projection of main part pole (2) bottom.

3. A screw having a chip guide function as claimed in claim 1, wherein: the top end of the screwing head (1) is provided with a screwing groove (10), and the section of the screwing groove (10) is in a regular hexagon shape.

4. A screw having a chip guide function as claimed in claim 1, wherein: the bottom of the screwing head (1) is provided with a gasket (4), the top end of the gasket (4) is provided with a fixing sleeve (40), the gasket (4) and the fixing sleeve (40) are of an integrated structure, the fixing sleeve (40) is sleeved on the screwing head (1), the fixing sleeve (40) is provided with an auxiliary groove (41) matched with the chip groove (11), and the auxiliary groove (41) is communicated with the chip groove (11).

5. A screw having a chip guide function according to claim 4, wherein: the inner diameter of the washer (4) is larger than the outer diameter of the screwing head (1), the screwing head (1) is a cylinder with a regular polygon horizontal section, the shape of the fixing sleeve (40) is adapted to the screwing head (1), and the inner wall of the fixing sleeve (40) is tightly attached to the outer wall of the fixing sleeve (40).

6. The screw with the chip guide function as claimed in claim 4, wherein: the gasket (4) is a rubber gasket.

7. A screw having a chip guide function according to claim 1, wherein: the projection of the drill tail (3) at the bottom end of the main body rod (2) is positioned in the area surrounded by the external thread (20).

8. A screw having a chip guide function as claimed in claim 1, wherein: the spiral direction of the chip guide groove (21) is opposite to the spiral direction of the external thread (20).