Screw with chip guiding function

Abstract

The utility model discloses a screw with a chip guiding function, which relates to the field of screws, and comprises a screw head, a screw rod, chip guiding chutes, a screw drill tail and a thread strip, the screw rod is arranged on the bottom wall of the screw head, the screw head and the screw rod are of an integrated structure, the chip guiding chutes are uniformly arranged on the outer wall of the screw rod, and the chip guiding chutes are uniformly arranged on the outer wall of the screw rod. According to the scheme, the screw head, the screw rod, the screw drill tail and other devices are arranged to be matched, so that the device is difficult to be fixedly connected to wood, wood chips can be discharged in time in the installation process, the situation that solid wood is cracked due to extrusion caused by the fact that the wood chips are accumulated in holes is avoided, and shaping and use safety of the solid wood are effectively guaranteed; and through cooperation of a pressing ring, a limiting piece, a screw head and other devices, the device can conveniently limit connection of the screw, loosening and deflection are avoided, and fixed connection of wood is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of screws, in particular to a screw with a chip guiding function. Background Art

[0002] In daily furniture decoration, screws are a commonly used fastener and one of the most important parts in decoration. During the installation of wooden furniture, screws are generally used to fix the furniture. When the existing screws are screwed in, debris will accumulate in the hole, which can easily cause the screw to get stuck in the installation hole of the decorative furniture. When a large torsional force is applied during the screw connection, it is easy to cause the wooden component to crack, which is not conducive to fastening and installation. Therefore, we propose a screw with a chip guide function. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a screw with a chip guide function, which effectively solves the problem that debris will accumulate in the hole when the existing screw is screwed in, which may easily cause the screw to get stuck in the installation hole of decorative furniture. When a large torsional force is applied during screw connection, it may easily cause the wooden component to crack, which is not conducive to fastening and installation.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a screw with a chip guiding function, comprising a screw head, a screw rod, a chip guiding groove, a screw drill tail and a threaded strip, the screw rod being arranged on the bottom wall of the screw head, the screw head and the screw rod being an integrated structure, the chip guiding groove being evenly opened on the outer wall of the screw rod, the cross-sectional shape of the chip guiding groove being an inwardly concave arc shape, the threaded strip being arranged on the outer wall of the screw rod, the direction of the chip guiding groove being consistent with the rotation direction of the threaded strip, and limiting grooves being evenly opened on the lower side of the outer wall of the threaded strip.

[0005] Preferably, the bottom wall of the screw head is provided with an annular groove, the inner wall of the annular groove is provided with a pressure ring, the bottom wall of the pressure ring is provided with a limiting plate, the bottom wall of the limiting plate is evenly provided with limiting protrusions, the lower side of the inner cavity of the annular groove is polygonal, and the outer wall of the limiting plate matches the lower side of the inner cavity of the annular groove.

[0006] Preferably, an installation groove is provided on the outer wall of the pressure ring, and a sealing ring is provided on the inner wall of the installation groove.

[0007] Preferably, the outer wall of the screw drill tail is evenly provided with self-drilling grooves, and the self-drilling grooves are connected to the chip guide chute.

[0008] Preferably, the inner wall of each of the chip guide chute is provided with a scraping strip, and the outer side of the scraping strip matches the outer size of the screw rod.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] 1. The screw with chip guide function can make it difficult for the device to be fixed to the wood by setting the screw head, screw rod and screw drill tail and other devices together. It can discharge the wood chips in time during installation, avoiding the accumulation of wood chips inside the hole and squeezing the solid wood to cause cracking, effectively ensuring the integrity of the solid wood and safety of use;

[0011] 2. The screw with chip guide function can facilitate the position limiting of the screw connection by arranging a pressure ring, a limiting piece and a screw head, thereby avoiding loosening and deflection, and facilitating the fixed connection of wood;

[0012] 3. The screw with chip guiding function can facilitate the sealing of the joint between the pressure ring and the ring groove by arranging a sealing ring, a pressure ring and a screw head, which is beneficial to improve the sealing performance, avoid air leakage, and facilitate the fastening and installation of the screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0014] In the attached figure:

[0015] Figure 1 This is a schematic diagram of the screw structure with chip guiding function of the utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the screw head of the utility model;

[0017] Figure 3 For this utility model Figure 2 A magnified view of part A in FIG;

[0018] Figure 4 This is a schematic cross-sectional view of the limiting piece of the utility model.

[0019] In the figure: 100, screw head; 101, screw rod; 102, chip guide chute; 103, screw drill tail; 104, thread strip; 105, pressure ring; 106, limit plate; 107, sealing ring; 108, scraper strip. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] Depend on Figure 1-4 The utility model provides a screw with a chip guiding function, comprising a screw head 100, a screw rod 101, a chip guiding groove 102, a screw drill tail 103 and a threaded strip 104. The screw rod 101 is fixedly connected to the bottom wall of the screw head 100, and the screw head 100 and the screw rod 101 are an integrated structure. The chip guiding groove 102 is evenly arranged on the outer wall of the screw rod 101, and the chip guiding groove 102 is convenient for guiding and discharging wood chips. The cross-sectional shape of the chip guiding groove 102 is an inward-concave circular arc shape, which is convenient for accommodating wood and pushing wood chips to move. The threaded strip 104 is fixedly connected to the outer wall of the screw rod 101, and is convenient for installation on wood through the threaded strip 104. The direction of the chip guiding groove 102 is consistent with the rotation direction of the threaded strip 104, and limiting grooves are evenly arranged on the lower side of the outer wall of the threaded strip 104.

[0022] In this embodiment: during installation and use, the waste chips generated can flow out through the chip guide chute 102, and the screw rod 101 is driven to rotate by turning to the screw head 100, and the screw drill tail 103 is driven to rotate by the screw rod 101, and the threaded strip 104 of the screw rod 101 is rotated, so that it is convenient to screw it to the wood for fixed installation. The rotation of the screw rod 101 facilitates the rotation of the chip guide chute 102, and the rotating chip guide chute 102 facilitates the screwing out of the debris. After the fixation is completed, the wood can be reset to the inner cavity of the limiting groove, which is convenient for limiting the threaded strip 104, which can make it difficult to fix the device to the wood, and can discharge the wood chips in time during installation, avoiding the accumulation of wood chips inside the hole and squeezing the solid wood to cause cracking, effectively ensuring the integrity of the solid wood and the safety of use.

[0023] The bottom wall of the screw head 100 is provided with an annular groove, and the inner wall of the annular groove is slidably connected with a pressure ring 105, which facilitates pushing the limiting plate 106 through the pressure ring 105, and the bottom wall of the pressure ring 105 is fixedly connected with the limiting plate 106, which facilitates limiting the screw head 100 through the limiting plate 106. The bottom wall of the limiting plate 106 is evenly fixedly connected with the limiting protrusion, which facilitates increasing friction and avoiding deflection. The lower side of the inner cavity of the annular groove is polygonal, and the outer wall of the limiting plate 106 matches the lower side of the inner cavity of the annular groove.

[0024] In this embodiment: the screw head 100 pushes the pressure ring 105 to move when screwing, and the limiting piece 106 is squeezed by the wood during installation, and the pressure ring 105 is squeezed by the limiting piece 106, and the air in the inner cavity of the ring groove is squeezed by the pressure ring 105. After tightening, the air pressure provides pressure to the limiting piece 106 so that the limiting piece 106 fits the surface of the wood for limiting. At the same time, a reverse force is provided to the screw head 100, and the screw head 100 pushes the screw rod 101, and the screw rod 101 pushes the threaded strip 104, so that the threaded strip 104 is fastened to the wood. This can make it easy for the device to limit the connection of the screw, avoid loosening and deflection, and is conducive to the fixed connection of the wood.

[0025] An installation groove is formed on the outer wall of the pressure ring 105 , and a sealing ring 107 is fixedly connected to the inner wall of the installation groove, so that the joint can be sealed by the sealing ring 107 .

[0026] In this embodiment, the installation groove is provided to facilitate the positioning of the sealing ring 107 , and the sealing ring 107 is used to facilitate the sealing of the joint between the pressure ring 105 and the ring groove, which is beneficial to improving the sealing performance, avoiding air leakage, and facilitating the fastening installation of the screws.

[0027] The outer wall of the screw drill tail 103 is evenly provided with self-drilling grooves, which are connected to the chip guide chute 102.

[0028] In this embodiment, by providing a self-drilling groove, it is possible to quickly drill into solid wood, making it easier to perform drilling operations on the wood. The self-drilling groove is connected to the chip guide chute 102, and wood chips generated during drilling flow into the chip guide chute 102. The rotating chip guide chute 102 facilitates the discharge of wood chips, thereby preventing wood accumulation from affecting tightening.

[0029] The inner wall of the chip guide chute 102 is fixedly connected with a scraping strip 108 , which facilitates scraping away debris. The outer side of the scraping strip 108 matches the outer size of the screw rod 101 .

[0030] In this embodiment, the screw rod 101 rotates to drive the scraping strip 108 to scrape the inner wall of the drill hole to remove debris, thereby diverting the wood chips and preventing the residual wood chips from affecting the screw connection of the threaded strip 104.

Claims

1. A screw with a chip guide function, characterized in that: The invention comprises a screw head (100), a screw rod (101), a chip guide chute (102), a screw drill tail (103) and a thread strip (104); the screw rod (101) is arranged on the bottom wall of the screw head (100); the screw head (100) and the screw rod (101) are an integrated structure; the chip guide chute (102) is evenly opened on the outer wall of the screw rod (101); the cross-section of the chip guide chute (102) is an inwardly concave arc shape; the thread strip (104) is arranged on the outer wall of the screw rod (101); the direction of the chip guide chute (102) is consistent with the rotation direction of the thread strip (104); and the lower side of the outer wall of the thread strip (104) is evenly opened with a limiting groove.

2. The screw with chip guiding function according to claim 1, characterized in that: The bottom wall of the screw head (100) is provided with an annular groove, the inner wall of the annular groove is provided with a pressure ring (105), the bottom wall of the pressure ring (105) is provided with a limiting plate (106), the bottom wall of the limiting plate (106) is evenly provided with limiting protrusions, the lower side of the inner cavity of the annular groove is polygonal, and the outer wall of the limiting plate (106) matches the lower side of the inner cavity of the annular groove.

3. The screw with chip guiding function according to claim 2, characterized in that: An installation groove is provided on the outer wall of the pressure ring (105), and a sealing ring (107) is provided on the inner wall of the installation groove.

4. The screw with chip guiding function according to claim 1, characterized in that: The outer wall of the screw drill tail (103) is evenly provided with self-drilling grooves, and the self-drilling grooves are connected to the chip guide chute (102).

5. The screw with chip guiding function according to claim 1, characterized in that: The inner wall of the chip guide chute (102) is provided with a scraping strip (108), and the outer side of the scraping strip (108) matches the outer size of the screw rod (101).

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