Corrosion-resistant screw structure

Abstract

The utility model relates to the technical field of screws, and particularly discloses a corrosion-resistant screw structure which comprises a rod body, a thread part is arranged at the bottom of the rod body, conducting holes used for installing wires are formed in the thread part and the rod body, an installation hole is further formed in the rod body, and the installation hole is communicated with a through hole. A pressing block is vertically and slidably connected to the rod body, and a driving groove used for driving the pressing block to rotate is formed in the top of the pressing block; a limiting piece is arranged between the pressure applying block and the rod body, and a fastening spring is further arranged between the rod body and the pressure applying block. A protection piece is further arranged between the pressing block and the mounting hole. According to the screw structure, the wire is mounted through the conducting hole and the mounting hole, after the wire is mounted, the wire is limited and sealed through the protection piece in the stroke that the elastic force of the fastening spring drives the pressing block to slide downwards, the situation that external impurities affect use of the wire is avoided, and the application range of the screw structure is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of screws, in particular to a corrosion-resistant screw structure. Background Art

[0002] Screws are tools that use the physical and mathematical principles of the circular rotation of the inclined surface of an object and the friction force to gradually fasten objects and parts. Screws are a general term for fasteners, and screws are indispensable industrial necessities in daily life. One of the self-tapping screws with a drill tail cutting edge that combines the functions of drilling, tapping, and tightening in one operation is generally called a self-drilling screw. The self-drilling screw has a symmetrical drill tail cutting edge, a cutting edge, and a chip groove at the end of the shaft of the screw body. The drill tail cutting edge at the end of the shaft is mainly used for drilling, and then the cutting edge is used to tap the matching female thread. At the same time, the chip groove is used to discharge the chips, so that drilling, tapping, and tightening can be performed.

[0003] However, after the existing screws are installed and fixed to a device, the threaded holes of the device are blocked by the screws, making it inconvenient to lead out the wires used in the device, and wiring is inconvenient, which affects the normal use of the workpiece to a certain extent. In order to solve the above technical problems, relevant patents have been proposed in the prior art, such as a Chinese patent with application number 202122164438.1, authorization publication number CN215596137U, and invention name A new type of screw structure, which discloses a new type of screw structure, including a hexagonal head and a screw rod, wherein a screw head is provided in the middle of the upper end of the hexagonal head, and a screw rod is provided in the middle of the lower end of the hexagonal head, and through holes are provided in the screw head, the hexagonal head and the middle of the screw rod.

[0004] The screw structure provided in the above patent is provided with a through hole that passes through the hexagonal head, the screw head and the screw rod, so that the wires of the equipment installed or fixed by the screw can be easily passed through the through hole for wiring. In the prior art such as the above patent, in order to facilitate the wiring of the wires, the screws are installed and used by opening them. However, the above operation method not only limits the installation and removal methods of the screws, but also requires the provision of a seal to seal the wires installed inside the screws, which has certain shortcomings. Utility Model Content

[0005] The purpose of the utility model is to provide a corrosion-resistant screw structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a corrosion-resistant screw structure, comprising a rod body, a threaded portion is provided at the bottom of the rod body, and a conducting hole for installing a wire is provided in the threaded portion and inside the rod body, and a mounting hole is also provided on the rod body, and the mounting hole is connected to the through hole; a pressure block is vertically slidably connected to the rod body, and a driving groove for driving the pressure block to rotate is provided on the top of the pressure block; a limiting member is provided between the pressure block and the rod body, and a fastening spring is also provided between the rod body and the pressure block; a protective member is also provided between the pressure block and the mounting hole, and the elastic force of the fastening spring drives the pressure block to be installed inside the rod body, and the guide installed inside the mounting hole is sealed by the protective member.

[0007] Furthermore, a fastener for improving the installation stability of the threaded portion is also provided on the rod body, and the fastener is connected to the limiter through a connecting unit.

[0008] Furthermore, the protective member includes a protective plate, a connecting frame is fixedly connected to the protective plate, and the connecting frame is installed on the pressure block.

[0009] Furthermore, a buffer is provided between the connecting frame and the pressure block; the buffer includes a buffer spring, a vertical groove is provided on the pressure block, the connecting frame is vertically slidably connected in the vertical groove, and the buffer spring is provided between the connecting frame and the buffer spring.

[0010] Furthermore, the limiting member includes a plurality of limiting strips fixedly connected to the pressure block, the rod body is provided with a plurality of limiting grooves matched with the limiting strips, and each limiting strip is slidably connected in a corresponding limiting groove.

[0011] Furthermore, the fastener comprises a fastening ring slidably connected to the rod body, and a plurality of groups of fastening teeth are arranged on the bottom of the fastening ring. The plurality of groups of fastening teeth are distributed in a circular array on the bottom of the fastening ring with the center of the fastening ring as the axis.

[0012] Furthermore, the connecting unit comprises a connecting rod, a guide groove is provided on the rod body, the connecting rod is vertically slidably connected in the guide groove, and the connecting rod is arranged between the corresponding fastening ring and the limiting strip.

[0013] Furthermore, a through rod is provided at the bottom of the threaded portion.

[0014] Furthermore, a hexagonal head is fixedly connected to the side wall of the rod body.

[0015] Furthermore, the surfaces of the rod body, the threaded portion and the through rod are uniformly covered with an electroplating layer, and the surface of the electroplating layer is also uniformly covered with an anti-corrosion coating.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the corrosion-resistant screw structure, through the cooperation between the rod body, the threaded portion, the pressure block, the limit piece, the fastening spring and the protective piece, when the screw structure needs to be used, the pressure block is driven to rotate through the driving groove, and the rod body and the threaded portion are driven to rotate through the limit piece during the rotation of the pressure block, which facilitates the installation and use of the screw structure. After the installation is completed, the wire is installed through the through hole and the mounting hole. After the wire is installed, the elastic force of the fastening spring drives the pressure block to slide downward during the travel to limit and seal the wire through the protective piece, thereby preventing impurities in the outside world from affecting the use of the wire, greatly improving the application scope of the screw structure and achieving better use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 The overall structural diagram provided for the embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the overall top view structure provided for an embodiment of the utility model;

[0020] Figure 3 for Figure 2 Schematic diagram of the AA section structure along the middle edge;

[0021] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure along the middle edge BB;

[0022] Figure 5 A schematic diagram of the internal structure of a rod body provided in an embodiment of the utility model;

[0023] Figure 6 A schematic diagram of the structure of the buffer installation method provided in the embodiment of the utility model;

[0024] Figure 7 A schematic diagram of the fastener installation method provided in an embodiment of the utility model.

[0025] Explanation of the reference numerals: 1. rod body; 2. threaded portion; 3. through rod; 4. conducting hole; 5. mounting hole; 6. protective plate; 7. connecting frame; 8. pressure block; 9. vertical groove; 10. buffer spring; 11. driving groove; 12. fastening spring; 13. limiting strip; 14. connecting rod; 15. fastening ring; 16. fastening teeth; 17. limiting groove; 18. guide groove; 19. hexagonal head. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figure 1-7 The utility model provides a technical solution: a corrosion-resistant screw structure, including a rod body 1, a threaded portion 2 is provided at the bottom of the rod body 1, and a conducting hole 4 for installing a wire is provided in the threaded portion 2 and the inside of the rod body 1, and a mounting hole 5 is also provided on the rod body 1, and the mounting hole 5 is connected to the through hole; a pressure block 8 is vertically slidably connected to the rod body 1, and a driving groove 11 for driving the pressure block 8 to rotate is provided on the top of the pressure block 8; a limiting member is provided between the pressure block 8 and the rod body 1, and a fastening spring 12 is also provided between the rod body 1 and the pressure block 8; a protective member is also provided between the pressure block 8 and the mounting hole 5, and the elastic force of the fastening spring 12 drives the pressure block 8 to be installed inside the rod body 1, and the guide installed inside the mounting hole 5 is sealed through the protective member.

[0028] Specifically, the rod body 1 includes a rod body 1, wherein a threaded portion 2 is provided at the bottom of the rod body 1, and a conducting hole 4 for installing a wire is provided inside the threaded portion 2 and the rod body 1, thereby greatly facilitating the installation of the wire, avoiding the normal installation of the wire being affected by the installation of the screw, and greatly improving the scope of application of the screw structure. Specifically, a mounting hole 5 is also provided on the rod body 1, and the mounting hole 5 is connected with the through hole, which is convenient for the use of the wire. A pressure block 8 is vertically slidably connected to the rod body 1, and a driving groove 11 for driving the pressure block 8 to rotate is provided on the top of the pressure block 8, and a limiting member is provided between the pressure block 8 and the rod body 1. Therefore, during use, the pressure block 8 is driven to rotate by the driving groove 11. Since a limiting member is provided between the pressure block 8 and the rod body 1, during use, the driving groove 11 drives the pressure block 8 to rotate, and at the same time drives the rod body 1 to rotate, which facilitates the installation and disassembly of the entire screw structure, and the use effect is better. And the driving groove 11 can be a "cross" groove, which has a wider scope of application. Specifically, a tightening spring 12 is also provided between the rod body 1 and the pressure block 8, and the elastic force of the tightening spring 12 drives the pressure block 8 to be installed inside the rod body 1. Specifically, a protective member is also provided between the pressure block 8 and the mounting hole 5, which is used to protect the wire, and the use effect is better. The elastic force of the tightening spring 12 drives the pressure block 8 to be installed inside the rod body 1, and the guide installed inside the mounting hole 5 is also sealed by the protective member. Therefore, when the screw structure needs to be used, the pressure block 8 is driven to rotate through the driving groove 11, and the rod body 1 and the threaded part 2 are driven to rotate through the limiter during the rotation of the pressure block 8, which is convenient for the installation and use of the screw structure. After the installation is completed, the wire is installed through the conducting hole 4 and the mounting hole 5. After the wire is installed, the elastic force of the tightening spring 12 drives the pressure block 8 to slide downward during the travel to limit and seal the wire through the protective member, so as to prevent impurities in the outside world from affecting the use of the wire, which greatly improves the scope of application of the screw structure and has a better use effect.

[0029] In the embodiment provided by the utility model, a fastener for improving the installation stability of the threaded portion 2 is also provided on the rod body 1, and the fastener is connected to the limiter through a connecting unit. Specifically, when the screw structure is installed on the product, the elastic force of the fastening spring 12 drives the pressure block 8 to slide downward, and then the fastener can be driven to abut against the product through the cooperation between the limiter and the connecting unit to increase the friction of the screw, and the use effect further improves the stability of the screw during installation.

[0030] In the embodiment provided by the utility model, the protective member includes a protective plate 6, a connecting frame 7 is fixedly connected to the protective plate 6, and the connecting frame 7 is installed on the pressure block 8. Specifically, the protective plate 6 is made of a flexible material, which is better fitted on the wire and has a better use effect. When the pressure block 8 slides downward, the pressure block 8 drives the protective plate 6 to fit the wire through the connecting frame 7 to perform a sealing operation on the wire.

[0031] In the embodiment provided by the utility model, a buffer is further provided between the connecting frame 7 and the pressure block 8; the buffer includes a buffer spring 10, a vertical slot 9 is provided on the pressure block 8, the connecting frame 7 is vertically slidably connected in the vertical slot 9, and the buffer spring 10 is provided between the connecting frame 7 and the buffer spring 10. Therefore, during use, a certain buffering operation is performed. When the protective plate 6 is attached to the wire, but the pressure block 8 has not reached a predetermined position, the pressure block 8 will continue to slide downward. At this time, under the reaction force, the connecting frame 7 will slide in the vertical slot 9, thereby being able to squeeze the buffer spring 10, and the elastic force of the buffer spring 10 is used to drive the protective plate 6 to fix the wire, and the use effect is better.

[0032] In the embodiment provided by the utility model, the limiting member includes a plurality of limiting strips 13 fixedly connected to the pressure block 8, and a plurality of limiting grooves 17 adapted to the limiting strips 13 are provided on the rod body 1. Each limiting strip 13 is respectively slidably connected in the corresponding limiting groove 17, thereby limiting the pressure block 8, so that the pressure block 8 can only slide vertically and cannot rotate, thereby meeting the working requirements.

[0033] In the embodiment provided by the utility model, the fastener includes a fastening ring 15 slidably connected to the rod body 1, and a plurality of groups of fastening teeth 16 are arranged on the bottom of the fastening ring 15. The plurality of groups of fastening teeth 16 are distributed in a circular array at the bottom of the fastening ring 15 with the center of the fastening ring 15 as the axis. When the fastening teeth 16 are in contact with the product, the friction force is increased to prevent the screw from rotating, thereby further improving the stability of the bolt mechanism during installation.

[0034] The utility model provides an embodiment, wherein the connection unit includes a connection rod 14, a guide groove 18 is provided on the rod body 1, the connection rod 14 is vertically slidably connected in the guide groove 18, and the connection rod 14 is arranged between the corresponding fastening ring 15 and the limit strip 13. More specifically, the number of the connection rods 14 is consistent with the number of the limit strips 13, and each connection rod 14 is respectively fixedly connected under the corresponding limit strip 13, and the bottoms of multiple groups of connection rods 14 are fixedly connected to the fastening ring 15. At this moment, when the elastic force of the fastening spring 12 drives the pressure block 8 to slide downward, the connection rod 14 drives the fastening ring 15 to slide downward and fit the product, thereby increasing the friction force, thereby improving the stability of the screw installation, and the effect is better.

[0035] In the embodiment provided by the utility model, a through rod 3 is provided at the bottom of the threaded portion 2, so as to further facilitate the installation and use of the wire.

[0036] In the embodiment provided by the utility model, a hexagonal head 19 is fixedly connected to the side wall of the rod body 1, which further facilitates the installation and removal of the screw. When used in conjunction with the driving slot 11, it is convenient for the user to choose different tools to drive the screw to rotate according to different work needs, thereby achieving better use effect.

[0037] In the embodiment provided by the utility model, the surfaces of the rod body 1, the threaded portion 2 and the through rod 3 are evenly covered with an electroplating layer, and the surface of the electroplating layer is also evenly covered with an anti-corrosion coating, wherein the electroplating layer and the anti-corrosion coating can prevent the outer surface of the screw from oxidizing and rusting even when exposed to open air, thereby avoiding the influence of rust on the normal operation of the screw.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] 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 corrosion-resistant screw structure, comprising a rod body (1), wherein a threaded portion (2) is provided at the bottom of the rod body (1), characterized in that: The threaded portion (2) and the rod body (1) are both provided with a conducting hole (4) for installing a wire, and the rod body (1) is also provided with a mounting hole (5), wherein the mounting hole (5) is in conductive communication with the through hole; A pressure block (8) is vertically slidably connected to the rod body (1), and a driving groove (11) for driving the pressure block (8) to rotate is provided on the top of the pressure block (8); A limiting member is provided between the pressure block (8) and the rod body (1), and a fastening spring (12) is also provided between the rod body (1) and the pressure block (8); A protective member is also provided between the pressure block (8) and the mounting hole (5); the elastic force of the tightening spring (12) drives the pressure block (8) to be installed inside the rod body (1), while the protective member seals the guide installed inside the mounting hole (5).

2. A corrosion-resistant screw structure according to claim 1, characterized in that: The rod body (1) is also provided with a fastener for improving the installation stability of the threaded portion (2), and the fastener is connected to the limiting member via a connecting unit.

3. The corrosion-resistant screw structure according to claim 1, characterized in that: The protective member comprises a protective plate (6), to which a connecting frame (7) is fixedly connected, and the connecting frame (7) is mounted on a pressure block (8).

4. A corrosion-resistant screw structure according to claim 3, characterized in that: A buffer is also provided between the connecting frame (7) and the pressure block (8); The buffer component comprises a buffer spring (10), a vertical slot (9) is provided on the pressure block (8), a connecting frame (7) is vertically slidably connected in the vertical slot (9), and the buffer spring (10) is arranged between the connecting frame (7) and the buffer spring (10).

5. The corrosion-resistant screw structure according to claim 2, characterized in that: The limiting member comprises a plurality of limiting strips (13) fixedly connected to the pressure block (8); the rod body (1) is provided with a plurality of limiting grooves (17) matched with the limiting strips (13); and each limiting strip (13) is slidably connected in a corresponding limiting groove (17).

6. The corrosion-resistant screw structure according to claim 5, characterized in that: The fastener comprises a fastening ring (15) slidably connected to a rod body (1), a plurality of groups of fastening teeth (16) being arranged on the bottom of the fastening ring (15), and the plurality of groups of fastening teeth (16) being distributed in a circular array on the bottom of the fastening ring (15) with the center of the fastening ring (15) as the axis.

7. The corrosion-resistant screw structure according to claim 6, characterized in that: The connecting unit comprises a connecting rod (14), a guide groove (18) is provided on the rod body (1), the connecting rod (14) is vertically slidably connected in the guide groove (18), and the connecting rod (14) is arranged between the corresponding fastening ring (15) and the limiting strip (13).

8. The corrosion-resistant screw structure according to claim 1, characterized in that: A through rod (3) is provided at the bottom of the threaded portion (2).

9. The corrosion-resistant screw structure according to claim 1, characterized in that: A hexagonal head (19) is fixedly connected to the side wall of the rod body (1).

10. The corrosion-resistant screw structure according to claim 8, characterized in that: The surfaces of the rod body (1), the threaded portion (2) and the through rod (3) are uniformly covered with an electroplating layer, and the surface of the electroplating layer is also uniformly covered with an anti-corrosion coating.

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