Outdoor rustproof screw

Abstract

The utility model belongs to screw technical field, and disclose an outdoor rust -proof screw, including the body of nail, the top of body of nail is fixedly connected with the nail cap subassembly, the middle part of nail cap subassembly is provided with movable assembly, wherein, the nail cap subassembly includes spacing nail cap, the middle part of spacing nail cap is equipped with spacing slot, the bottom annular array of spacing slot is equipped with drain hole, the utility model discloses through spacing nail cap, drain hole, movable block etc. Structure cooperation makes the device rust -resistant effect is good, movable block removes along the sliding slot through the limiting rod, spring is compressed, movable block is extruded to spacing slot, and the installation can be completed to rotary screwdriver, rainwater can slide along movable block and spacing nail cap, and it is not easy to produce the gathering, and a small amount of moisture can enter spacing slot through the gap, and the moisture in spacing slot can be discharged through drain hole, and the moisture is isolated through sealing rubber ring, through reducing the moisture storage time on screw, thereby improving rust -resistant effect.

Description

Technical Field

[0001] This utility model belongs to the field of screw technology, specifically an outdoor rust-proof screw. Background Technology

[0002] Screws, as indispensable basic fasteners in the field of mechanical connections, are widely used in various industries such as construction, transportation, and energy due to their simple and efficient structure and reliable connection performance. Especially in outdoor scenarios, screws undertake critical tasks such as fixing structural components and connecting equipment parts, and their performance directly affects the safety and durability of the overall structure. The outdoor environment is complex and variable, and screws must withstand the test of natural factors such as sun exposure, rain, temperature changes, and wind and sand erosion for a long time. This places higher demands on the materials, surface treatment processes, and structural design of screws. Although traditional outdoor screws improve their protective performance by using corrosion-resistant materials such as stainless steel and galvanized steel, and by applying anti-rust coatings, they still face many challenges in practical use.

[0003] Existing outdoor screws require a screwdriver to be inserted into the Phillips head or slotted head of the design before tightening. However, this process easily wears down the anti-rust layer on the material surface. Furthermore, in outdoor environments, the groove structure easily forms a rainwater retention area. Due to the small space inside the groove, moisture cannot evaporate quickly, causing the metal substrate to be in an electrolyte environment for a long time, accelerating the electrochemical corrosion reaction and leading to rust. This not only shortens the screw's service life but may also cause safety hazards due to loose connections, becoming a technical problem that urgently needs to be solved in the application of outdoor screws. A new type of anti-rust screw for outdoor use is proposed to solve the above problems. Utility Model Content

[0004] To address the problems mentioned in the background section, this utility model provides an outdoor rust-proof screw.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an outdoor rust-proof screw, comprising a screw body, a screw head assembly fixedly connected to the top of the screw body, and a movable component provided in the middle of the screw head assembly; The nail head assembly includes a limiting nail head, a limiting groove is formed in the middle of the limiting nail head, drainage holes are formed in a circular array at the bottom of the limiting groove, and a sealing ring is fixed to the bottom side of the limiting nail head. The movable component includes a movable block adapted to the limiting groove, a limiting rod fixedly connected to the bottom of the movable block, and a spring fixedly connected to the bottom of the limiting rod.

[0006] Preferably, a groove is provided in the middle of the nail body for limiting the sliding of the limiting rod, and the end of the spring away from the limiting rod is fixedly connected to the inner end of the groove.

[0007] Preferably, the top surface of the movable block and the top surface of the limiting nail head are joined to form a complete arc surface.

[0008] Preferably, the drain hole is located at the lowest point of the limiting groove, and the sealing ring is located between the limiting groove and the nail body.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes a combination of a limiting nail cap, a drainage hole, and a movable block to achieve excellent rust prevention. The nail is placed against the installation location, and a screwdriver is used to press and engage the movable block. The movable block moves along a groove via a limiting rod, compressing the spring and forcing the movable block into the limiting groove. Installation is then completed by rotating the screwdriver. When rainwater drips onto the movable block and the top of the limiting nail cap, the water slides away, preventing accumulation. A small amount of water may enter the limiting groove through gaps, but the drainage hole drains the water, and a sealing ring isolates it. By reducing the time water remains on the screw, the rust prevention effect is improved. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the orthographic section of this utility model; Figure 3 This utility model Figure 2 Enlarged view of point A; Figure 4 This is a disassembly diagram of the present invention.

[0011] In the diagram: 1. Nail body; 2. Nail head assembly; 201. Limiting nail head; 202. Limiting groove; 203. Drain hole; 204. Sealing ring; 3. Movable assembly; 301. Movable block; 302. Limiting rod; 303. Spring. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] like Figures 1 to 4 As shown, this utility model provides an outdoor rust-proof screw, including a screw body 1, a screw head assembly 2 fixedly connected to the top of the screw body 1, and a movable component 3 provided in the middle of the screw head assembly 2; The nail head assembly 2 includes a limiting nail head 201, a limiting groove 202 is formed in the middle of the limiting nail head 201, and drainage holes 203 are formed in a circular array at the bottom of the limiting groove 202. A sealing ring 204 is fixedly connected to the bottom side of the limiting nail head 201. The movable assembly 3 includes a movable block 301 that is adapted to the limiting groove 202. A limiting rod 302 is fixedly connected to the bottom of the movable block 301, and a spring 303 is fixedly connected to the bottom of the limiting rod 302.

[0014] The nail body 1 has a groove in the middle for the limiting rod 302 to slide. The end of the spring 303 away from the limiting rod 302 is fixed to the inner end of the groove. The top surface of the movable block 301 and the top surface of the limiting nail cap 201 are spliced ​​to form a complete arc surface. When rainwater or other water stains drip onto the top side of the movable block 301 and the limiting nail cap 201, the rainwater can slide away quickly along the arc surface of the movable block 301 and the limiting nail cap 201, and it is not easy to accumulate, thereby preventing the groove of the screw cap from rusting. The drain hole 203 is located at the lowest point of the limiting groove 202. The sealing ring 204 is located between the limiting groove 202 and the nail body 1. A small amount of water may enter the limiting groove 202 through the gap. The water in the limiting groove 202 can be drained through the drain hole 203 and isolated by the sealing ring 204.

[0015] When installation is required, place the nail body 1 against the installation location, press and hold the screwdriver against the movable block 301, and the movable block 301 will move along the slide groove via the limit rod 302. The spring 303 will be compressed, and the movable block 301 will be squeezed into the limit groove 202. Rotating the screwdriver will complete the installation.

[0016] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0017] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An outdoor rust-proof screw, comprising a screw body (1), characterized in that: The top of the nail body (1) is fixedly connected to a nail head assembly (2), and a movable component (3) is provided in the middle of the nail head assembly (2). The nail head assembly (2) includes a limiting nail head (201), a limiting groove (202) is provided in the middle of the limiting nail head (201), and drainage holes (203) are provided in an annular array at the bottom of the limiting groove (202). A sealing ring (204) is fixed to the bottom side of the limiting nail head (201). The movable component (3) includes a movable block (301) adapted to the limiting groove (202), the bottom of the movable block (301) is fixedly connected to a limiting rod (302), and the bottom of the limiting rod (302) is fixedly connected to a spring (303).

2. The outdoor rust-proof screw according to claim 1, characterized in that: The nail body (1) has a groove in the middle for limiting the sliding of the limiting rod (302), and the end of the spring (303) away from the limiting rod (302) is fixedly connected to the inner end of the groove.

3. The outdoor rust-proof screw according to claim 1, characterized in that: The top surface of the movable block (301) and the top surface of the limiting nail (201) are joined to form a complete arc surface.

4. The outdoor rust-proof screw according to claim 1, characterized in that: The drain hole (203) is located at the lowest point of the limiting groove (202), and the sealing ring (204) is located between the limiting groove (202) and the nail body (1).

Images