Locking screw with sealing structure

Abstract

The utility model belongs to screw technical field, concretely is a kind of locking screw with sealing structure, including screw body, the top of screw body is provided with protective cover, the top surface of protective cover is provided with connecting mechanism in the middle, and the outside of protective cover is threadedly connected with thread cover, the top of screw body is evenly provided with connecting groove by both sides, the bottom of protective cover is fixedly connected with sucking disc, the connecting mechanism includes two-way screw rod, the middle part of two-way screw rod is fixedly connected with knob, and the outer surface of two-way screw rod is provided with two lengths same, opposite direction's rotation thread, two groups of sealing structure are provided in the application, the part of screw exposed outside is effectively sealed and protected, reduce dust penetration problem, delay the corrosion speed of screw, extend the service life of screw, set up a pair of can synchronous reverse adjustment's connecting component, can be quickly sealed structure's installation and disassembly, it is convenient for later replacement processing.

Description

Technical Field

[0001] This utility model relates to the field of screw technology, specifically an anti-loosening screw with a sealing structure. Background Technology

[0002] A screw is a fastener with a helical thread. Its basic structure includes a screw head and a screw shank. The screw head provides the tool's force application area and bearing surface, while the screw shank is a helical protrusion and the core part that realizes the fastening function. In essence, a screw is a screw that rotates around the inclined plane of a cylinder, generating axial movement when rotated, converting a small rotational force into a large vertical force, thereby penetrating or fixing materials with less effort. The friction between the thread and the mating part prevents loosening and ensures a stable connection.

[0003] The aforementioned screw cabinet still has some problems in use. Traditional screws, during installation, have the screw head located outside the connector, leaving a gap at the connection point. This gap lacks an effective protective sealing structure, allowing dust to penetrate. Over time, the accumulated dust affects the screw's connection stability, especially for screws in outdoor environments. The lack of a sealing structure causes the gap to corrode faster, resulting in a shorter lifespan. Therefore, to address these issues, a non-loosening screw with a sealing structure is proposed. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, traditional screws have the screw head located on the outside of the connector during installation, resulting in gaps at the connection point between the screw head and the connector. The screw head lacks an effective protective sealing structure, allowing dust to penetrate. Over time, the accumulated dust increases, affecting the connection stability of the screw. This is especially true for screws installed in outdoor environments, where the lack of a sealing structure leads to faster corrosion and a shorter service life. This invention proposes an anti-loosening screw with a sealing structure.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: The anti-loosening screw with a sealing structure of this utility model includes a screw body, a protective cover is provided at the top of the screw body, a connecting mechanism is provided in the center of the top surface of the protective cover, and a threaded cover is threadedly connected to the outer side of the protective cover. Connecting grooves are provided on both sides of the top of the screw body, and a suction cup is fixedly connected to the bottom surface of the protective cover.

[0006] Preferably, the connecting mechanism includes a bidirectional lead screw, a knob is fixedly connected to the middle of the bidirectional lead screw, and two rotating threads of the same length but opposite direction are formed on the outer surface of the bidirectional lead screw. A limit ring is fixedly connected to the outer side of the bidirectional lead screw near the middle of the rotating threads and the knob. A ball slider is sleeved on the outer side of the rotating threads, and a positioning rod is fixedly connected to the bottom of the ball slider.

[0007] Preferably, the threaded cover is located outside the suction cup, and the bottom end of the threaded cover and the bottom end of the suction cup are flush with the bottom surface of the upper end of the screw body.

[0008] Preferably, the bidirectional lead screw is located in the center inside the protective cover, and the bidirectional lead screw is movably connected to the protective cover, with the knob penetrating through the top surface of the protective cover.

[0009] Preferably, the positioning rod penetrates the bottom surface of the protective cover, and the connection between the positioning rod and the ball slider is slidably connected to the protective cover.

[0010] Preferably, both the positioning rod and the connecting groove are L-shaped, and the horizontal position of the positioning rod and the horizontal position of the connecting groove are engaged.

[0011] The advantages of this utility model are: 1. This utility model involves placing a protective cover on the outer side of the upper end of the screw body. Pressing the protective cover causes the suction cup to adhere to the outer surface of the connection position. The suction cup, in conjunction with the vertical position of the protective cover, seals the exposed part of the screw body. Then, rotating the threaded cover allows it to move outside the protective cover, so that the bottom end of the threaded cover fits against the outer surface of the screw connection position, protecting the suction cup and providing a secondary seal. This application sets two sets of sealing structures to effectively seal and protect the exposed part of the screw, reducing dust penetration and slowing down the corrosion rate of the screw, thus extending its service life. 2. This utility model, through the structural design of the connecting mechanism, uses a knob to drive a bidirectional lead screw to rotate. The rotation of the bidirectional lead screw, in conjunction with two rotating threads of the same length but opposite directions, causes two ball sliders to move synchronously in opposite directions. The ball sliders drive the positioning rod to move horizontally. When the horizontal position of the positioning rod engages with the horizontal position of the connecting groove, the protective cover is fixed on the outside of the screw body. Conversely, when the horizontal position of the positioning rod separates from the horizontal position of the connecting groove, the protective cover can be removed, and then the screw body can be disassembled and replaced. The provision of a pair of synchronously reverse adjustable connecting components allows for quick installation and disassembly of the sealing structure, facilitating subsequent replacement. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional structural diagram of the protective cover and screw body of this utility model; Figure 3 This is a structural exploded view of the protective cover and threaded cover of this utility model; Figure 4 This is a schematic diagram of the connection mechanism of this utility model.

[0014] In the diagram: 1. Screw body; 2. Protective cover; 3. Connecting mechanism; 4. Threaded cover; 5. Connecting groove; 6. Suction cup; 7. Two-way lead screw; 8. Knob; 9. Rotating thread; 10. Limiting ring; 11. Ball slider; 12. Positioning rod. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1 one Figure 4 As shown, a non-loosening screw with a sealing structure includes a screw body 1, a protective cover 2 at the top of the screw body 1, a connecting mechanism 3 at the center of the top surface of the protective cover 2, and a threaded cover 4 threadedly connected to the outer side of the protective cover 2. Connecting grooves 5 are opened on both sides of the top of the screw body 1, and a suction cup 6 is fixedly connected to the bottom surface of the protective cover 2. During installation, traditional screws have their heads located on the outside of the connector. However, there is a gap at the connection between the screw head and the connector, and the screw head lacks an effective protective sealing structure, allowing dust to penetrate. Over time, the accumulated dust will increase, affecting the connection stability of the screw. This is especially true for screws in outdoor environments, where the lack of a sealing structure causes the gaps to corrode faster, resulting in a shorter service life. By using a tool to thread the screw body 1 into the connecting hole, the threaded head of the screw body 1 is made to fit against the surface of the connection position. Then, the protective cover 2 is placed on the outer side of the upper end of the screw body 1. Pressing the protective cover 2 causes the suction cup 6 to adhere to the outer surface of the connection position. The suction cup 6, in conjunction with the vertical position of the protective cover 2, seals the exposed part of the screw body 1.

[0017] Furthermore, the connecting mechanism 3 includes a bidirectional lead screw 7, a knob 8 is fixedly connected to the middle of the bidirectional lead screw 7, and two rotating threads 9 of the same length and opposite direction are opened on the outer surface of the bidirectional lead screw 7. A limit ring 10 is fixedly connected to the outer side of the bidirectional lead screw 7 near the middle of the rotating threads 9 and the knob 8. A ball slider 11 is sleeved on the outer side of the rotating threads 9, and a positioning rod 12 is fixedly connected to the bottom of the ball slider 11. During operation, the stability of the protective cover 2 is improved by the connecting mechanism 3. The knob 8 is rotated, and the friction texture on the outer surface of the knob 8 drives the bidirectional lead screw 7 to rotate.

[0018] Furthermore, the threaded cover 4 is located outside the suction cup 6, and the bottom end of the threaded cover 4 and the bottom end of the suction cup 6 are flush with the bottom surface of the upper end of the screw body 1. During operation, rotate the threaded cover 4 to move it outside the protective cover 2, so that the bottom end of the threaded cover 4 fits against the outer surface of the screw connection position, protecting the suction cup 6 and providing a secondary seal.

[0019] Furthermore, the double-acting screw 7 is located in the center inside the protective cover 2, and the double-acting screw 7 is movably connected to the protective cover 2, and the knob 8 penetrates through the top surface of the protective cover 2; During operation, the rotation of the bidirectional lead screw 7, in conjunction with two rotating threads 9 of the same length but opposite directions, causes the two ball sliders 11 to move synchronously in opposite directions. The limiting ring 10 serves as a limiting guide to ensure the rotational stability of the bidirectional lead screw 7.

[0020] Furthermore, the positioning rod 12 penetrates the bottom surface of the protective cover 2, and the connection between the positioning rod 12 and the ball slider 11 is slidably connected to the protective cover 2; During operation, the ball slider 11 drives the positioning rod 12 to move horizontally. When the horizontal position of the positioning rod 12 engages with the horizontal position of the connecting groove 5, the protective cover 2 is fixed on the outside of the screw body 1. Conversely, when the horizontal position of the positioning rod 12 separates from the horizontal position of the connecting groove 5, the protective cover 2 can be removed, and then the screw body 1 can be disassembled and replaced.

[0021] Furthermore, both the positioning rod 12 and the connecting groove 5 are L-shaped, and the horizontal position of the positioning rod 12 and the horizontal position of the connecting groove 5 are engaged. During operation, when the protective cover 2 is installed, the end of the positioning rod 12 that is close to the horizontal position enters the interior of the connecting groove 5.

[0022] Working principle: The tool drives the screw body 1 to connect with the connecting hole via a thread, so that the threaded head of the screw body 1 fits against the surface of the connection position. Then, the protective cover 2 is placed on the outer side of the upper end of the screw body 1. Pressing the protective cover 2 causes the suction cup 6 to adhere to the outer surface of the connection position. The suction cup 6, in conjunction with the vertical position of the protective cover 2, seals the exposed part of the screw body 1. Then, the threaded cover 4 is rotated and moved outside the protective cover 2, so that the bottom end of the threaded cover 4 fits against the outer surface of the screw connection position, protecting the suction cup 6 and providing a secondary seal. This effectively seals and protects the exposed part of the screw body 1, reducing dust penetration and slowing down the corrosion rate of the screw, thus extending its service life.

[0023] During the installation of the protective cover 2, the end of the positioning rod 12 near the horizontal position enters the interior of the connecting groove 5. The friction texture on the outer surface of the knob 8 causes the knob 8 to drive the bidirectional lead screw 7 to rotate. The rotation of the bidirectional lead screw 7, in conjunction with two rotating threads 9 of the same length but opposite directions, causes the two ball sliders 11 to move synchronously in opposite directions. The limiting ring 10 plays a limiting and guiding role, ensuring the rotational stability of the bidirectional lead screw 7. The ball sliders 11 drive the positioning rod 12 to move horizontally. When the horizontal position of the positioning rod 12 is engaged with the horizontal position of the connecting groove 5, the protective cover 2 is fixed on the outside of the screw body 1. Conversely, when the horizontal position of the positioning rod 12 is separated from the horizontal position of the connecting groove 5, the protective cover 2 can be removed, and then the screw body 1 can be disassembled and replaced.

[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or similar improvements made within the theoretical and principle content of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A locking screw with a sealing structure, comprising a screw body (1), characterized in that: The top of the screw body (1) is provided with a protective cover (2), the top surface of the protective cover (2) is provided with a connecting mechanism (3) in the center, and the outer side of the protective cover (2) is threadedly connected with a threaded cover (4). The top of the screw body (1) is provided with connecting grooves (5) on both sides, and the bottom surface of the protective cover (2) is fixedly connected with a suction cup (6).

2. The anti-loosening screw with a sealing structure according to claim 1, characterized in that: The connecting mechanism (3) includes a two-way lead screw (7), a knob (8) is fixedly connected to the middle of the two-way lead screw (7), and two rotating threads (9) of the same length and opposite direction are opened on the outer surface of the two-way lead screw (7). A limit ring (10) is fixedly connected to the outer side of the two-way lead screw (7) near the middle of the rotating thread (9) and the knob (8). A ball slider (11) is sleeved on the outer side of the rotating thread (9), and a positioning rod (12) is fixedly connected to the bottom of the ball slider (11).

3. The anti-loosening screw with a sealing structure according to claim 1, characterized in that: The threaded cover (4) is located outside the suction cup (6), and the bottom end of the threaded cover (4) and the bottom end of the suction cup (6) are flush with the bottom surface of the upper end of the screw body (1).

4. The anti-loosening screw with a sealing structure according to claim 2, characterized in that: The bidirectional lead screw (7) is located in the center inside the protective cover (2), and the bidirectional lead screw (7) is movably connected to the protective cover (2), and the knob (8) passes through the top surface of the protective cover (2).

5. The anti-loosening screw with a sealing structure according to claim 2, characterized in that: The positioning rod (12) penetrates the bottom surface of the protective cover (2), and the connection between the positioning rod (12) and the ball slider (11) is slidably connected to the protective cover (2).

6. The anti-loosening screw with a sealing structure according to claim 2, characterized in that: The positioning rod (12) and the connecting groove (5) are both L-shaped, and the horizontal position of the positioning rod (12) and the horizontal position of the connecting groove (5) are engaged.

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