Foldable screw protection shell

CN224932035UActive Publication Date: 2026-11-03DONGGUAN TIANFU LIDE IND CO LTD
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Patent Information

Application Number
CN202522602541.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-08
Publication Date
2026-11-03
Estimated Expiration
2035-12-08

AI Technical Summary

Technical Problem

Traditional screw protective covers cannot be folded, resulting in high transportation costs and easy damage to the screws during transportation, affecting assembly accuracy and service life.

Method used

Design a foldable screw protection shell, which uses components such as a nut protection mechanism, a lower protection plate, a connecting plate, a side protection plate, and an upper anti-slip block. It protects the nut and screw through snap-fit ​​and disassembly, enabling convenient installation and disassembly, and can be folded separately to save space.

Benefits of technology

It improves the protection of screws, reduces transportation and storage costs, enhances logistics efficiency and warehousing flexibility, reduces the use of packaging materials, and has environmental benefits.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a foldable screw protection shell relates to screw protection technical field, including screw body, the surface of screw body is provided with nut protection mechanism, the bottom of nut protection mechanism is provided with screw protection mechanism, nut protection mechanism includes upper protection board, upper protection board swing joint is in the top surface of screw body, the surface of upper protection board is connected with upper antiskid clamping block, the bottom surface fixed connection of upper antiskid clamping block has side protection board. The utility model first inserts into lower protection board, make lower protection board and be in the bottom surface of nut, through upper side protection board of antiskid clamping block joint, side protection board is connected to upper protection board, and when joint, adjust both sides make the clamping block pass through the notch of upper protection board surface, then loosen and make the clamping block and be in the surface of upper protection board, realize stability, improve the protection of nut and detachable strong, convenient installation, thereby transport storage, strong adaptability reduces long -term device operation and maintenance cost.
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Description

Technical Field

[0001] This utility model relates to the field of screw protection technology, specifically to a foldable screw protection shell. Background Technology

[0002] Screw protectors are the invisible guardians of threaded connections, protecting against moisture, dust, and impacts, thus extending the lifespan of fasteners. Traditional disposable plastic caps or metal covers are fixed in size and have sharp edges, leaving important screws unprotected. With increasing equipment integration, more frequent maintenance, and the tightening of "zero corrosion, zero scratch" standards for high-end equipment, there is an urgent need for a foldable screw protector. It should fold into a flat, thin sheet like a folding fan, drastically reducing its packaging volume. The elastic buckle locks with a simple press of a fingertip, requiring no tools. This ensures that every disassembly and assembly is completed in a "lightweight, portable, and reusable" manner, keeping each screw clean and tight as it was at the factory for a long time.

[0003] Patent publication number CN205937422U discloses a protective cover for a cylindrical head hexagonal socket head cap screw, including a protective cover body. The protective cover body includes a cover plate and a fixing post integrally formed with the cover plate. The fixing post is located on the lower side of the cover plate and has a cavity inside. The cavity is cylindrical. The outer side of the fixing post is hexagonal and mates with the recess of the hexagonal socket head cap screw. The upper surface of the cover plate is convex and has anti-slip texture. The lower surface of the cover plate has a limiting edge along the circumferential direction.

[0004] To address the issue of pit oxidation, existing technologies employ a fixing post located under the cover plate. The fixing post has a hexagonal outer side and engages with the pit of the internal hexagon screw to prevent water from entering and effectively prevent pit oxidation. However, this method still presents challenges when transporting large quantities of protective cases, as they cannot be folded and cannot fully protect the screws. This leads to increased costs for transporting protective cases and issues such as screws colliding and scratching each other during transport, causing thread damage, surface coating peeling, and even affecting subsequent assembly accuracy and service life. Utility Model Content

[0005] The purpose of this invention is to provide a foldable screw protection shell to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A foldable screw protective case includes a screw body, a nut protection mechanism on the surface of the screw body, and a screw protection mechanism at the bottom of the nut protection mechanism.

[0007] The nut protection mechanism includes an upper protection plate, which is movably connected to the top surface of the screw body. An upper anti-slip block is snapped onto the surface of the upper protection plate, and a side protection plate is fixedly connected to the bottom surface of the upper anti-slip block.

[0008] A further improvement of this utility model is that a connecting plate is fixedly connected to one side of the side protection plate, and an upper limiting block is fixedly connected to the top surface of the side protection plate.

[0009] A further improvement of this utility model is that: steel springs are fixedly connected to both sides of the upper limiting block, and a locking block is fixedly connected to one side of the steel spring, with the locking block abutting against the surface of the upper protective plate.

[0010] A further improvement of this utility model is that: a lower anti-slip block is fixedly connected to the bottom surface of the side protection plate, the lower protection plate is engaged with the surface of the lower anti-slip block, and a sliding groove is opened on the surface of the lower protection plate.

[0011] A further improvement of this utility model is that: the screw body includes a nut, the nut is movably connected to the top surface of the lower protective plate, and a screw rod is fixedly connected to the bottom surface of the nut.

[0012] A further improvement of the present invention is that the screw protection mechanism includes a limiting plate, the limiting plate is slidably connected to the surface of the slide groove, and a support column is fixedly connected to the bottom surface of the limiting plate.

[0013] A further improvement of this utility model is that a silicone protective groove is fixedly connected to one side of the support column, and a connector is fixedly connected to the surface of the support column.

[0014] A further improvement of this utility model is that: a hose clamp is movably connected inside the connector, a progressive groove is opened on the surface of the hose clamp, and a delivery screw is rotatably connected to the surface of the connector, and the delivery screw is threadedly connected to the progressive groove.

[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows: 1. This utility model provides a foldable screw protective shell, which adopts a nut protection mechanism, a lower protective plate, a connecting plate, a side protective plate, an upper anti-slip block, an upper limiting block, a locking block, a steel spring, an upper protective plate, a sliding groove, and an upper anti-slip block in cooperation. First, the lower protective plate is inserted so that it abuts against the bottom surface of the nut. The lower anti-slip block locks the upper side protective plate, and the side protective plate locks against the upper protective plate. When locking, the two sides are adjusted so that the locking block passes through the groove on the surface of the upper protective plate. Then, it is released so that the locking block abuts against the surface of the upper protective plate, achieving stability. This improves the protection of the nut, is highly detachable, and easy to install, thus making it highly adaptable to transportation and storage, while reducing long-term maintenance costs.

[0016] 2. This utility model provides a foldable screw protective shell, which adopts the cooperation of a screw body, a nut protection mechanism, a nut, a screw rod, a support column, a silicone protective groove, a hose clamp, a delivery groove, a connector, a delivery screw, and a limiting plate. The limiting plate is inserted into the sliding groove. By turning the delivery screw, the hose clamp retracts, and the support column tightens inward until the silicone protective groove slightly touches the surface of the screw, thus completing the protection. All parts can be disassembled and folded, which improves the protection of the screw during the overall transportation. At the same time, the space saving rate is increased when the protection mechanism is transported separately, thereby significantly reducing transportation costs and greatly improving logistics efficiency and warehousing flexibility. It also reduces the use of packaging materials and has environmental benefits. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the screw body of this utility model; Figure 3 This is a schematic diagram of the screw protection mechanism of this utility model; Figure 4 This is a schematic diagram of the nut protection mechanism of this utility model; Figure 5 This is a structural schematic diagram of the nut protection mechanism of this utility model from another perspective.

[0018] In the diagram: 1. Screw body; 2. Screw protection mechanism; 3. Nut protection mechanism; 11. Nut; 12. Screw; 21. Support column; 22. Silicone protective groove; 23. Hose clamp; 24. Progress groove; 25. Connector; 26. Delivery screw; 27. Limiting plate; 31. Lower protection plate; 32. Connecting plate; 33. Side protection plate; 34. Upper anti-slip block; 35. Upper limiting block; 36. Block; 37. Steel spring; 38. Upper protection plate; 39. Slide groove; 310. Lower anti-slip block. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to embodiments: Example 1 like Figure 1-5 As shown, this utility model provides a foldable screw protective shell, including a screw body 1. A nut protection mechanism 3 is provided on the surface of the screw body 1, and a screw protection mechanism 2 is provided at the bottom of the nut protection mechanism 3. The nut protection mechanism 3 includes an upper protective plate 38, which is movably connected to the top surface of the screw body 1. An upper anti-slip block 34 is engaged with the surface of the upper protective plate 38. A side protective plate 33 is fixedly connected to the bottom surface of the upper anti-slip block 34. A connecting plate 32 is fixedly connected to one side of the side protective plate 33. An upper limiting block 35 is fixedly connected to the top surface of the side protective plate 33. Steel springs 37 are fixedly connected to both sides of the upper limiting block 35. A locking block 36 is fixedly connected to one side of the steel spring 37. The locking block 36 abuts against the surface of the upper protective plate 38. A lower anti-slip block 310 is fixedly connected to the bottom surface of the side protective plate 33. A lower protective plate 31 is engaged with the surface of the lower anti-slip block 310. A sliding groove 39 is opened on the surface of the lower protective plate 31.

[0020] In this embodiment, when using the device, the lower protective plate 31 is first inserted from below the nut 11, so that the lower protective plate 31 abuts against the bottom surface of the nut 11. Then, the upper side protective plate 33 is engaged by the lower anti-slip block 310. The side protective plate 33 is then engaged with the upper protective plate 38 by the anti-slip block 34 on the top surface. When engaging with the upper protective plate 38, the two side blocks 36 are pinched so that the blocks 36 pass through the grooves on the surface of the upper protective plate 38. Then, the blocks are released so that the blocks 36 abut against the surface of the upper protective plate 38, achieving stability. This improves the protection of the nut, is highly detachable, and easy to install, thus making it highly adaptable to transportation and storage while reducing long-term device maintenance costs.

[0021] Example 2 like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the screw body 1 includes a nut 11, which is movably connected to the top surface of the lower protective plate 31. A screw 12 is fixedly connected to the bottom surface of the nut 11. The screw protection mechanism 2 includes a limiting plate 27, which is slidably connected to the surface of the slide groove 39. A support column 21 is fixedly connected to the bottom surface of the limiting plate 27. A silicone protective groove 22 is fixedly connected to one side of the support column 21. A connector 25 is fixedly connected to the surface of the support column 21. A hose clamp 23 is movably connected inside the connector 25. A progressive groove 24 is opened on the surface of the hose clamp 23. A delivery screw 26 is rotatably connected to the surface of the connector 25. The delivery screw 26 is threadedly connected to the progressive groove 24.

[0022] In this embodiment, when protecting the screw 12, the limiting plate 27 is first inserted into the sliding groove 39 from the side, and then placed in the upright position. By turning the delivery screw 26, the threaded connection of the delivery screw 26 into the delivery groove 24 is made, causing the hose clamp 23 to contract, thereby causing the support column 21 to tighten inward until the silicone protective groove 22 slightly touches the surface of the screw 12, thus completing the protection of the screw body 1. When only the screw protection mechanism 2 and the nut protection mechanism 3 are transported, the upper protection plate 38 and the lower protection plate 31 can be disassembled separately. The side protection plate 33 is designed to be made of silicone and can be folded into a near-flat surface. The connector 25 can adjust the hose clamp 23 to its minimum value, which improves the protection of the screw during the overall transportation. At the same time, the space saving rate is increased when the protection mechanism is transported separately, thereby significantly reducing transportation costs and greatly improving logistics efficiency and warehousing flexibility. It also reduces the use of packaging materials and has environmental benefits.

[0023] The working principle of this foldable screw protective case will be explained in detail below.

[0024] like Figure 1-5 As shown, when using the device, first, the lower protective plate 31 is inserted from below the nut 11, so that the lower protective plate 31 abuts against the bottom surface of the nut 11. Then, the upper side protective plate 33 is engaged by the lower anti-slip block 310. The side protective plate 33 is then engaged with the upper protective plate 38 by the anti-slip block 34 on the top surface. When engaging with the upper protective plate 38, the two side blocks 36 are pinched so that the blocks 36 pass through the grooves on the surface of the upper protective plate 38. Then, they are released so that the blocks 36 abut against the surface of the upper protective plate 38, achieving stability. When protecting the screw 12, the limiting plate 27 is first inserted into the sliding groove 39 on its side. The screw body 1 is then positioned upright. By turning the delivery screw 26, the threaded connection of the delivery screw 26 to the delivery slot 24 is made, causing the hose clamp 23 to retract, thereby tightening the support column 21 inward until the silicone protective groove 22 slightly touches the surface of the screw 12, thus completing the protection of the screw body 1. When only the screw protection mechanism 2 and the nut protection mechanism 3 are transported, the upper protection plate 38 and the lower protection plate 31 can be disassembled separately, while the side protection plate 33 is designed to be made of silicone material and can be folded into a near-flat shape. The connector 25 can adjust the hose clamp 23 to its minimum value, thereby saving a lot of space.

[0025] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A foldable screw protective case, comprising a screw body (1), characterized in that: The surface of the screw body (1) is provided with a nut protection mechanism (3), and the bottom of the nut protection mechanism (3) is provided with a screw protection mechanism (2). The nut protection mechanism (3) includes an upper protection plate (38), which is movably connected to the top surface of the screw body (1). An upper anti-slip block (34) is snapped onto the surface of the upper protection plate (38), and a side protection plate (33) is fixedly connected to the bottom surface of the upper anti-slip block (34).

2. The foldable screw protective case according to claim 1, characterized in that: A connecting plate (32) is fixedly connected to one side of the side protection plate (33), and an upper limiting block (35) is fixedly connected to the top surface of the side protection plate (33).

3. A foldable screw protective case according to claim 2, characterized in that: Steel springs (37) are fixedly connected to both sides of the upper limiting block (35), and a locking block (36) is fixedly connected to one side of the steel spring (37), with the locking block (36) abutting against the surface of the upper protective plate (38).

4. A foldable screw protective case according to claim 1, characterized in that: The bottom surface of the side protection plate (33) is fixedly connected to a lower anti-slip block (310), and the surface of the lower anti-slip block (310) is fitted with a lower protection plate (31). The surface of the lower protection plate (31) is provided with a sliding groove (39).

5. A foldable screw protective case according to claim 1, characterized in that: The screw body (1) includes a nut (11), which is movably connected to the top surface of the lower protective plate (31), and a screw rod (12) is fixedly connected to the bottom surface of the nut (11).

6. A foldable screw protective case according to claim 1, characterized in that: The screw protection mechanism (2) includes a limiting plate (27), which is slidably connected to the surface of the slide groove (39), and a support column (21) is fixedly connected to the bottom surface of the limiting plate (27).

7. A foldable screw protective case according to claim 6, characterized in that: A silicone protective groove (22) is fixedly connected to one side of the support column (21), and a connector (25) is fixedly connected to the surface of the support column (21).

8. A foldable screw protective case according to claim 7, characterized in that: The connector (25) is internally connected to a hose clamp (23), the surface of which is provided with a progressive groove (24), and the surface of the connector (25) is rotatably connected to a delivery screw (26), which is threadedly connected to the progressive groove (24).

Citation Information

Patent Citations

  • Hexagonal screw visor in socket cap

    CN205937422U