Special-shaped stainless steel screw

By setting adjustment and positioning mechanisms on the heads of irregularly shaped stainless steel screws, flexible switching of the slot can be achieved, solving the problem of inconvenient disassembly and assembly caused by fixing irregularly shaped slots, and improving tool adaptability and operating efficiency.

CN224229049UActive Publication Date: 2026-05-12ZHEJIANG HAIXUN PRECISION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG HAIXUN PRECISION TECH CO LTD
Filing Date
2025-06-30
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The existing irregular-shaped stainless steel screw heads have fixed irregular grooves that cannot be flexibly changed, making it inconvenient for workers to disassemble and assemble when they bring the wrong screwdriver, especially in emergency repairs or in environments where tools are limited, resulting in low efficiency.

Method used

Design an irregularly shaped stainless steel screw. By setting an adjustment mechanism on the screw head to drive the block to rotate, the block has multiple slots and is fixed by a positioning mechanism, so that the slots can be flexibly switched to adapt to different screwdrivers.

Benefits of technology

It improves the adaptability and efficiency of screw assembly operations, reduces the number of tools to carry, is suitable for rapid response in complex working conditions, avoids screw damage caused by incompatible tools, and shortens preparation time.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224229049U_ABST
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Abstract

The utility model relates to the technical field of special-shaped stainless steel screws, in particular to a special-shaped stainless steel screw which comprises a screw head. The nail body is fixed to the bottom of the nail head, a mounting groove is formed in the top of the nail head, an adjusting mechanism is arranged in the mounting groove, the square block is connected to the adjusting mechanism, the adjusting mechanism is used for driving the square block to rotate, a triangular notch is formed in the top of the square block, a hexagonal notch is formed in the bottom of the square block, and a cross-shaped notch is formed in the left side of the square block; a Y-shaped notch is formed in the right side of the square block, and a positioning mechanism is arranged at the top of the square block and used for limiting movement of the square block; the special-shaped groove structures with different shapes are arranged on the four sides of the square block, so that the adaptability and the operation efficiency of screw assembling operation are remarkably improved, and a worker can quickly switch groove types matched with various screwdriver bits only by simply rotating the square block; the problem that a traditional single groove-shaped tool is frequently replaced when facing screws of multiple specifications is thoroughly solved.
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Description

Technical Field

[0001] This utility model relates to the field of stainless steel screw technology, and in particular to an irregularly shaped stainless steel screw. Background Technology

[0002] Irregularly shaped stainless steel screws are a type of specially designed stainless steel fastener. The term "irregularly shaped" refers to the non-standard shape or structure that differs from standard screws (such as common hexagonal head, cross-head, etc.). They are usually made of stainless steel such as 304 and 316, and have the characteristics of corrosion resistance, high temperature resistance, and high strength, making them suitable for humid or corrosive environments.

[0003] Existing irregular-shaped stainless steel screws have a fixed design for the irregular grooves on the screw head, which cannot be flexibly switched to adapt to different screwdrivers. If the screwdriver carried by the worker does not match the screw groove type, it is difficult to perform disassembly and assembly operations, which affects work efficiency. This problem is more prominent in emergency repairs or in environments where tools are limited.

[0004] Therefore, to address the problem that the irregular grooves on the screw heads of existing irregularly shaped stainless steel screws are fixed and cannot be flexibly changed, and that it is inconvenient for workers to disassemble and assemble them if they bring the wrong screwdriver, an irregularly shaped stainless steel screw can be designed. Utility Model Content

[0005] To overcome the problem that existing irregular-shaped stainless steel screws have fixed irregular grooves on the screw head, making it impossible to flexibly change them, and that it is inconvenient for staff to disassemble and assemble them if they bring the wrong screwdriver.

[0006] The technical solution of this utility model is as follows: an irregularly shaped stainless steel screw, including a screw head; and a block, with a screw body fixed to the bottom of the screw head, an installation groove opened on the top of the screw head, an adjustment mechanism provided inside the installation groove, a block connected to the adjustment mechanism, the adjustment mechanism being used to drive the block to rotate, a triangular slot opened on the top of the block, a hexagonal slot opened on the bottom of the block, a cross slot opened on the left side of the block, a Y-shaped slot opened on the right side of the block, and a positioning mechanism provided on the top of the block, the positioning mechanism being used to restrict the movement of the block.

[0007] Preferably, by setting an adjustment mechanism, the block can be rotated. When the block rotates, it can switch between different slots, thus adapting to different screwdrivers. This avoids the problem of workers bringing the wrong screwdriver, which would make disassembly and assembly difficult. After rotation, the block can be positioned by a positioning mechanism to prevent slippage. This solves the problem that the irregular slots on the screw heads of existing irregular stainless steel screws are fixed and cannot be flexibly switched, making it difficult for workers to disassemble and assemble them if they bring the wrong screwdriver.

[0008] Preferably, the adjustment mechanism includes a sliding component and a rotating component; the sliding component is used to move the block up and down, and the rotating component is used to rotate the block.

[0009] Preferably, the sliding component includes a sliding groove and a slider; the mounting groove has sliding grooves on both the front and rear sides, and the slider is slidably connected inside both sliding grooves.

[0010] Preferably, the rotating assembly includes a bearing and a shaft; the bearings are embedded in the side of the two sliders near the block, and the shafts are fixedly connected to the block.

[0011] Preferably, the positioning mechanism includes a fixing component and a clamping component; the fixing component is used to position the clamping component, and the clamping component is used to restrict the sliding of the slider.

[0012] Preferably, the fixing component includes screw holes and fixing screws; the top of the screw head has two screw holes, and fixing screws are connected to the inside of both screw holes.

[0013] Preferably, the clamping assembly includes a washer and a pressure block; washers are fitted on the outer sides of both fixing screws, and a pressure block is provided between the fixing screws and the washers.

[0014] The beneficial effects of this utility model are:

[0015] By setting different shaped grooves on the four sides of the block, the adaptability and efficiency of screw assembly operations are significantly improved. Workers can quickly switch the groove type to match various screwdriver heads simply by rotating the block, completely solving the problem of frequent changes when traditional single-groove tools are used with multiple screw sizes. This modular design allows a single tool to be compatible with common screw types such as Phillips, slotted, and hexagonal screws, greatly reducing the number of tools to carry and lightening the workload. Its flexible switching feature is especially suitable for rapid response in complex working conditions, which can not only avoid screw damage caused by tool incompatibility, but also shorten preparation time. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0017] Figure 2 The diagram shown is a three-dimensional structural illustration of the nail body of this utility model;

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the adjustment mechanism of this utility model;

[0019] Figure 4 The diagram shown is a schematic representation of the three-dimensional block structure of this utility model.

[0020] Figure 5The diagram shown is a three-dimensional structural schematic of the positioning mechanism of this utility model.

[0021] Explanation of reference numerals in the attached diagram: 1. Nail head; 2. Nail body; 3. Mounting groove; 41. Slide groove; 42. Slider; 43. Bearing; 44. Shaft; 5. Block; 61. Screw hole; 62. Fixing screw; 63. Washer; 64. Pressure block. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5 This utility model provides an embodiment of an irregularly shaped stainless steel screw, including a screw head 1 and a block 5. A screw body 2 is fixed to the bottom of the screw head 1, and an installation groove 3 is provided on the top of the screw head 1. An adjustment mechanism is provided inside the installation groove 3, and the block 5 is connected to the adjustment mechanism. The adjustment mechanism is used to drive the block 5 to rotate. A triangular slot is provided on the top of the block 5, a hexagonal slot is provided on the bottom of the block 5, a cross slot is provided on the left side of the block 5, and a Y-shaped slot is provided on the right side of the block 5. A positioning mechanism is provided on the top of the block 5 to restrict the movement of the block 5. By configuring the adjustment mechanism, the block 5 is driven to rotate. During the rotation, the block 5 can switch between multiple slots to match different sizes of screwdriver heads, effectively solving the problem of difficult disassembly and assembly caused by improper tool selection by the operator. After rotation and positioning, the block 5 can be accurately fixed by the positioning mechanism to prevent displacement or dislocation during the operation.

[0024] Please see Figures 2-4 In this embodiment, the adjustment mechanism includes a sliding component and a rotating component. The sliding component is used to drive the block 5 to move up and down, and the rotating component is used to drive the block 5 to rotate. The sliding component includes a groove 41 and a slider 42. The mounting groove 3 has grooves 41 on both the front and rear sides. The slider 42 is slidably connected inside the two grooves 41. By setting the grooves 41, the slider 42 can be positioned, improving the stability and accuracy of the slider 42's movement. The rotating component includes a bearing 43 and a rotating shaft 44. The bearing 43 is embedded on the side of the two sliders 42 closest to the block 5. The rotating shaft 44 is set inside the bearing 43 and is fixedly connected to the block 5. By setting the bearing 43, the rotating shaft 44 can be assisted to rotate, so that the rotating shaft 44 can drive the block 5 to rotate.

[0025] Please see Figures 2-5In this embodiment, the positioning mechanism includes a fixing component and a clamping component. The fixing component is used to position the clamping component, and the clamping component is used to restrict the sliding of the slider 42. The fixing component includes screw holes 61 and fixing screws 62. Two screw holes 61 are opened on the top of the screw head 1, and fixing screws 62 are connected inside the two screw holes 61. By setting the screw holes 61, the fixing screws 62 can be positioned and installed. The clamping component includes a washer 63 and a pressure block 64. The washer 63 is sleeved on the outside of the two fixing screws 62, and a pressure block 64 is set between the fixing screws 62 and the washer 63. By setting the pressure block 64 and the washer 63, after the fixing screws 62 are tightened, the pressure block 64 can be pressed against the upper side of the slider 42, thereby restricting the sliding of the slider 42. Conversely, by loosening the fixing screws 62, the slider 42 can be slid to adjust the block 5.

[0026] When working, switch the slot on block 5 to fit different screwdrivers. First, loosen the two fixing screws 62 in the screw hole 61 at the top of the screw head 1, so that the washer 63 on the fixing screw 62 and the pressure block 64 below it are loosened. Then, pull block 5 upward. Block 5 drives the rotating shaft 44 fixed to it. The rotating shaft 44 drives the two sliders 42 embedded in the sliding grooves 41 on both sides of the mounting groove 3 of the screw head 1 to slide upward. Then, rotate block 5. Block 5 rotates in the bearing 43 embedded in the slider 42 through the rotating shaft 44, and rotates the desired slot to the top. Finally, tighten the fixing screw 62. The pressure block 64 presses the slider 42 into the sliding groove 41, restricting the sliding of the slider 42 and the rotation of block 5, completing the slot switching and locking the position of block 5.

[0027] Through the above steps, by using an adjustment mechanism to drive the block 5 to rotate, the slot on the block 5 can be switched to different positions when the block 5 rotates, thereby adapting to various screwdriver models and avoiding the impact on disassembly and assembly efficiency due to incorrect tool selection. After rotating to the correct position, the positioning mechanism can lock the position of the block 5 to ensure its stability during operation and prevent accidental slippage. This design not only improves tool compatibility but also enhances operational reliability, thereby solving the problem that the irregular groove of the screw head 1 of existing irregular stainless steel screws is fixed and cannot be flexibly switched, and that it is inconvenient for workers to disassemble and assemble them if they bring the wrong screwdriver.

Claims

1. A special-shaped stainless steel screw, comprising a screw head (1); characterized in that: It also includes a block (5), a nail body (2) fixed to the bottom of the nail head (1), an installation groove (3) opened on the top of the nail head (1), an adjustment mechanism is provided inside the installation groove (3), a block (5) is connected to the adjustment mechanism, the adjustment mechanism is used to drive the block (5) to rotate, a triangular slot is opened on the top of the block (5), a hexagonal slot is opened on the bottom of the block (5), a cross slot is opened on the left side of the block (5), a Y-shaped slot is opened on the right side of the block (5), and a positioning mechanism is provided on the top of the block (5), the positioning mechanism is used to restrict the movement of the block (5).

2. The irregularly shaped stainless steel screw according to claim 1, characterized in that: The adjustment mechanism includes a sliding component and a rotating component; the sliding component is used to move the block (5) up and down, and the rotating component is used to rotate the block (5).

3. The irregularly shaped stainless steel screw according to claim 2, characterized in that: The sliding component includes a groove (41) and a slider (42); the mounting groove (3) has grooves (41) on both the front and rear sides, and sliders (42) are slidably connected inside the two grooves (41).

4. The irregularly shaped stainless steel screw according to claim 3, characterized in that: The rotating assembly includes a bearing (43) and a rotating shaft (44); the bearing (43) is embedded in one side of the two sliders (42) near the block (5), and the rotating shaft (44) is provided inside the bearing (43), and the rotating shaft (44) is fixedly connected to the block (5).

5. The irregularly shaped stainless steel screw according to claim 4, characterized in that: The positioning mechanism includes a fixing component and a clamping component; the fixing component is used to position the clamping component, and the clamping component is used to restrict the sliding of the slider (42).

6. The irregularly shaped stainless steel screw according to claim 5, characterized in that: The fixing component includes screw holes (61) and fixing screws (62); the top of the nail head (1) has two screw holes (61), and the inside of the two screw holes (61) is connected to the fixing screws (62).

7. The irregularly shaped stainless steel screw according to claim 1, characterized in that: The clamping assembly includes a washer (63) and a pressure block (64); washer (63) is fitted on the outside of both fixing screws (62), and pressure block (64) is provided between the fixing screws (62) and the washer (63).