Anti-skid screw with cross recess and fastening device matched with anti-skid screw

Abstract

The utility model relates to the technical field of mechanical fastening, in particular to a cross recess anti-skidding screw and a fastening device matched with the cross recess anti-skidding screw, the cross recess anti-skidding screw comprises a stud and a screw head integrally formed with the stud, and further comprises the fastening device matched with the cross recess anti-skidding screw for use, and the fastening device comprises a cross screwdriver. The cross screwdriver comprises a handle, and one end of the handle is fixedly connected with an extension piece. The positioning pin is arranged on the screw head, the positioning hole is formed in the crosshead, and the positioning pin and the crosshead are matched with the fixing head installed at the bottom in a threaded mode, so that accurate positioning and stable connection of the cross screwdriver and the screw are achieved. During use, the cross screwdriver can be effectively prevented from slipping and misplacing in the screwing process, and the efficiency and accuracy of screwing or disassembling a screw are improved; and the positioning pin is matched with the fixing head, so that the screwdriver can be prevented from being separated from the screw in the force application process, and the safety and reliability of operation are ensured.

Description

Technical Field

[0001] This utility model relates to the field of mechanical fastening technology, specifically to a cross-grooved anti-slip screw and its matching fastening device. Background Technology

[0002] Screws are used frequently in many fields such as mechanical assembly, equipment installation, and building decoration. Cross-head screws are widely used in various scenarios because they are easy to operate with a screwdriver. However, traditional cross-head screws have many problems in practical use.

[0003] On the one hand, when tightening or loosening screws, the limited friction between the screw and the screwdriver makes it easy for the screwdriver to slip out of the Phillips head under high torque, resulting in "slippage." This not only reduces work efficiency and prolongs operation time, but may also damage the Phillips head of the screw, making it difficult to properly loosen or tighten the screw, and even requiring special tools or destructive methods to disassemble, leading to material waste and increased costs.

[0004] On the other hand, traditional screws have a fixed length, which cannot meet the tightening needs of parts with different thicknesses. Moreover, conventional screwdrivers are inconvenient to operate, making it difficult to apply force accurately and prone to operational errors. At the same time, the lack of lighting assistance makes it difficult for operators to clearly observe the position and tightening status of screws, affecting work quality and efficiency, and may even lead to safety accidents.

[0005] In view of this, we propose a cross-grooved anti-slip screw and its matching fastening device. Utility Model Content

[0006] To overcome the above deficiencies, this utility model provides a cross-groove anti-slip screw and its matching fastening device.

[0007] The technical solution of this utility model is:

[0008] A cross-head anti-slip screw and its matching fastening device are disclosed. The cross-head anti-slip screw includes a stud and a screw head integrally formed with the stud. It also includes a fastening device for use with the cross-head anti-slip screw. The fastening device includes a cross-head screwdriver with a handle. One end of the handle is fixedly connected to an extension member. A cross-head is coaxially welded to the end of the extension member. The screw head has a first cross-head groove, and the cross-head is sized to fit the first cross-head groove. The screw head has a locating pin and a locating hole for the locating pin to pass through. A fixing head is threaded onto the bottom of the locating pin. By setting a locating pin on the screw head, opening a locating hole on the cross-head, and using a fixing head threaded onto the bottom, precise positioning and a stable connection between the cross-head screwdriver and the screw are achieved. The first cross-head groove includes an inner groove and an outer groove, with all four ends of the outer groove extending to the outside of the screw head. When in use, it can effectively prevent the Phillips screwdriver from slipping or misaligning during the tightening process, improving the efficiency and accuracy of screw tightening or loosening; the cooperation between the positioning pin and the fixing head can also prevent the screwdriver from coming off the screw during the application of force, ensuring the safety and reliability of operation.

[0009] As a preferred technical solution, the system further includes an extension post for extending the stud. One end of the extension post is coaxially and integrally formed with a connecting shaft that is threadedly connected to a first threaded hole on the stud. The other end of the extension post has a second threaded hole that matches the size of the connecting shaft. By cooperating with the first threaded hole on the stud and the second threaded hole at the other end of the extension post, the total length of the screw can be flexibly adjusted according to actual needs.

[0010] As a preferred technical solution, the extension post has a second cross groove at the end away from the connecting shaft, and the thread direction on the connecting shaft is the same as the thread direction on the stud. This allows the extension post to not only extend in length but also to be tightened or loosened using the same Phillips screwdriver.

[0011] As a preferred technical solution, the extension component includes an outer sleeve fixedly connected to the handle and a movable rod fixedly connected to the crosshead, with the movable rod slidably connected to the outer sleeve. The extension component's structure, where the outer sleeve and movable rod are slidably connected, allows the distance between the crosshead and the handle to be flexibly adjusted according to actual operating space and requirements.

[0012] As a preferred technical solution, the inner wall of the outer sleeve has a slot for mounting the movable rod, and the outer wall of the movable rod has at least one limiting groove. A limiting block, which is slidably connected to the limiting groove, is integrally formed on the inner wall of the slot. By providing a limiting groove on the outer wall of the movable rod and a limiting block on the inner wall of the slot in the outer sleeve, the movable rod can maintain a stable sliding trajectory during its sliding connection with the outer sleeve, preventing the movable rod from shifting or rotating during sliding.

[0013] As a preferred technical solution, several lights are fixedly installed on one end of the handle near the extension member. The handle has a battery slot for installing batteries, and the batteries are electrically connected to the lights via wires. A back cover is threaded into the handle slot. This provides good lighting conditions for screw tightening operations. When working in dimly lit or poorly lit environments, the lights illuminate the screws and the operating area, allowing the user to clearly observe the screw position, the cross-head groove status, and the tightening condition.

[0014] As a preferred technical solution, a U-shaped handle is fixedly connected to the outer wall of the back cover, and a hanging rope is installed on the U-shaped handle. This allows users to hang the Phillips screwdriver for easy storage and retrieval.

[0015] As a preferred technical solution, the outer circumference of the handle is integrally formed with several raised strips, and a protective sleeve is provided on the outer side of the handle, with the raised strips located inside the protective sleeve. The cooperation between the raised strips and the protective sleeve increases the friction between the handle and the hand, effectively preventing the handle from slipping in the hand. When tightening or loosening screws, the user can hold the handle more stably, enhancing the stability and comfort of operation; at the same time, the protective sleeve also protects the handle, preventing wear on the handle surface and extending the tool's service life.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention achieves precise positioning and secure connection between the Phillips head screwdriver and the screw by setting a positioning pin on the screw head, opening a positioning hole on the cross head, and using a fixing head installed with a bottom thread. During use, it effectively prevents the Phillips head screwdriver from slipping or misaligning during tightening, improving the efficiency and accuracy of screw tightening or loosening. The cooperation between the positioning pin and the fixing head also prevents the screwdriver from detaching from the screw during force application, ensuring operational safety and reliability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the screw in this utility model;

[0019] Figure 2 This is a schematic diagram of the Phillips head screwdriver of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the screw head in this utility model;

[0021] Figure 4 This is a schematic diagram of the extension component in this utility model;

[0022] Figure 5 This is a schematic diagram of the handle in this utility model.

[0023] The meanings of the labels in the diagram are as follows:

[0024] 1. Stud; 10. First threaded hole; 2. Screw head; 3. First cross groove; 30. Inner groove; 31. Outer groove; 4. Locating pin; 40. Fixing head; 5. Extension post; 50. Connecting shaft; 51. Second cross groove; 52. Second threaded hole; 6. Handle; 60. Extension piece; 600. Outer sleeve; 601. Movable rod; 602. Limiting groove; 603. Slot; 604. Limiting block; 61. Cross head; 610. Locating hole; 62. Lighting lamp; 63. Protective sleeve; 64. Back cover; 65. U-shaped handle; 66. Hanging rope; 67. Raised strip. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0026] Please refer to the accompanying drawings. This utility model provides a technical solution:

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, a cross-head anti-slip screw and its matching fastening device are disclosed. The cross-head anti-slip screw includes a stud 1 and a screw head 2 integrally formed with the stud 1. It also includes a fastening device used in conjunction with the cross-head anti-slip screw. The fastening device includes a cross-head screwdriver, which includes a handle 6. One end of the handle 6 is fixedly connected to an extension 60. A cross head 61 is coaxially welded to the end of the extension 60. The screw head 2 has a first cross-head groove 3. The cross head 61 is sized to fit the first cross-head groove 3. The screw head 2 has a locating pin 4. The cross head 61 has a locating hole 610 for the locating pin 4 to pass through. A fixing head 40 is threaded onto the bottom of the locating pin 4. The first cross-head groove 3 includes an inner groove 30 and an outer groove 31. All four ends of the outer groove 31 extend to the outside of the screw head 2. By setting the locating pin 4 on the screw head 2, opening the locating hole 610 on the cross head 61, and cooperating with the fixing head 40 threaded onto the bottom, precise positioning and stable connection between the cross-head screwdriver and the screw are achieved. When in use, it can effectively prevent the Phillips screwdriver from slipping or misaligning during the tightening process, improving the efficiency and accuracy of screw tightening or loosening; the cooperation between the positioning pin 4 and the fixing head 40 can also prevent the screwdriver from coming off the screw during the application of force, ensuring the safety and reliability of operation.

[0028] like Figure 3 As shown, it should be noted that the outer groove 31 is designed to facilitate use with common screwdrivers.

[0029] like Figure 1 As shown, in a preferred embodiment, it further includes an extension post 5 for extending the stud 1. One end of the extension post 5 is coaxially and integrally formed with a connecting shaft 50 that is threadedly connected to the first threaded hole 10 on the stud 1. The other end of the extension post 5 has a second threaded hole 52 that matches the size of the connecting shaft 50. By cooperating with the first threaded hole 10 on the stud 1 and the second threaded hole 52 at the other end of the extension post 5, the total length of the screw can be flexibly adjusted according to actual needs.

[0030] like Figure 1 As shown in this preferred embodiment, the extension post 5 has a second cross groove 51 at the end away from the connecting shaft 50, and the thread direction on the connecting shaft 50 is the same as the thread direction on the stud 1. This allows the extension post 5 to not only extend its length, but also to be tightened or disassembled using the same Phillips screwdriver.

[0031] like Figure 4 As shown, in a preferred embodiment, the extension member 60 includes an outer sleeve 600 fixedly connected to the handle 6 and a movable rod 601 fixedly connected to the crosshead 61. The movable rod 601 is slidably connected to the outer sleeve 600. The extension member 60 adopts a structure in which the outer sleeve 600 and the movable rod 601 are slidably connected, so that the distance between the crosshead 61 and the handle 6 can be flexibly adjusted according to the actual operating space and needs.

[0032] like Figure 4 As shown, in a preferred embodiment, the outer sleeve 600 has a slot 603 for mounting the movable rod 601, and the outer wall of the movable rod 601 has at least one limiting groove 602. A limiting block 604, which is slidably connected to the limiting groove 602, is integrally formed on the inner wall of the slot 603. By providing the limiting groove 602 on the outer wall of the movable rod 601 and the limiting block 604 on the inner wall of the slot 603 of the outer sleeve 600, the movable rod 601 can maintain a stable sliding trajectory during its sliding connection with the outer sleeve 600, preventing the movable rod 601 from shifting or rotating during sliding.

[0033] like Figure 2 and Figure 5 As shown, in a preferred embodiment, a plurality of lights 62 are fixedly installed on the end of the handle 6 near the extension 60. The handle 6 has a battery slot for installing batteries, and the batteries are electrically connected to the lights 62 via wires. A back cover 64 is threaded into the slot of the handle 6. This provides good lighting conditions for screw tightening operations. When working in dimly lit or poorly lit environments, the lights 62 can illuminate the screws and the operating area, allowing the user to clearly observe the screw position, the cross-shaped groove status, and the tightening condition.

[0034] like Figure 2As shown, in a preferred embodiment, a U-shaped handle 65 is fixedly connected to the outer wall of the back cover 64, and a hanging rope 66 is installed on the U-shaped handle 65. This allows the user to hang the Phillips screwdriver for easy storage and retrieval.

[0035] like Figure 2 and Figure 5 As shown, in a preferred embodiment, the outer circumference of the handle 6 is integrally formed with several protrusions 67, and a protective sleeve 63 is provided on the outer side of the handle 6, with the protrusions 67 located inside the protective sleeve 63. The cooperation between the protrusions 67 and the protective sleeve 63 increases the friction between the handle 6 and the hand, effectively preventing the handle 6 from slipping in the hand. When tightening or loosening screws, the user can hold the handle 6 more stably, enhancing the stability and comfort of operation; at the same time, the protective sleeve 63 also protects the handle 6, preventing wear on the surface of the handle 6 and extending the service life of the tool.

[0036] In use, the cross-head anti-slip screw and its matching fastening device of this utility model are designed to be used by aligning the cross head 61 of the Phillips screwdriver with the first cross groove 3 on the screw head 2, and then using the positioning pin 4 through the positioning hole 610 on the cross head 61 to install the fixing head 40, thus achieving a stable connection between the screw and the screwdriver and preventing slippage or misalignment. When the screw length needs to be adjusted, the connecting shaft 50 of the extension post 5 is connected to the first threaded hole 10 of the stud 1, and other extension posts 5 can also be connected through the second threaded hole 52 at the other end of the extension post 5. The second cross groove 51 on the extension post 5 and the same thread direction ensure that the same screwdriver can be used for operation. The sliding connection structure between the outer sleeve 600 of the extension member 60 and the movable rod 601 can adapt to different operating spaces, and the limiting groove 602 and the limiting block 604 ensure sliding stability. In dim light, the lamp 62 on the handle 6 is powered by a battery to provide illumination. The U-shaped handle 65 and the hanging rope 66 facilitate the storage and use of tools, and the protrusion 67 and the protective sleeve 63 of the handle 6 increase the grip friction and protect the handle 6. This design improves the efficiency, accuracy, and safety of screw tightening operations through multiple innovations.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cross recessed security screw and its mating fastening device, characterized in that: The cross slot anti-skid screw includes a stud (1) and a screw head (2) integrally formed with the stud (1), and a fastening device matched with the cross slot anti-skid screw, the fastening device includes a cross slot driver, the cross slot driver includes a handle (6), one end of the handle (6) is fixedly connected with an extension piece (60), the extension piece (60) is coaxially welded with a cross head (61) at the end, a first cross slot (3) is formed in the screw head (2), the cross head (61) is sized to fit the first cross slot (3), a positioning pin (4) is arranged on the screw head (2), a positioning hole (610) is formed in the cross head (61) for the positioning pin (4) to pass through, a fixing head (40) is threadedly installed at the bottom of the positioning pin (4), the first cross slot (3) includes an inner slot (30) and an outer slot (31), the four end portions of the outer slot (31) extend to the outside of the screw head (2).

2. The Phillips head security screw and its matched fastening device as claimed in claim 1, wherein: An extension column (5) is further arranged for extending the stud (1), one end of the extension column (5) is coaxially integrally formed with a connecting shaft (50) which is threadedly connected with a first threaded hole (10) on the stud (1), the other end of the extension column (5) is formed with a second threaded hole (52) sized to fit the connecting shaft (50).

3. The Phillips head security screw and its matched fastening device as claimed in claim 2, wherein: A second cross slot (51) is formed in the end of the extension column (5) away from the connecting shaft (50), the thread direction on the connecting shaft (50) is the same as the thread direction on the stud (1).

4. The Phillips head security screw and its matched fastening device as claimed in claim 3, wherein: The extension piece (60) includes an outer sleeve (600) fixedly connected with the handle (6) and a movable rod (601) fixedly connected with the cross head (61), the movable rod (601) is slidingly connected with the outer sleeve (600).

5. The Phillips head security screw and its matched fastening device as claimed in claim 4, wherein: An insertion slot (603) is formed in the inner wall of the outer sleeve (600) for mounting the movable rod (601), at least one limiting slot (602) is formed in the outer wall of the movable rod (601), a limiting block (604) is integrally formed on the inner wall of the insertion slot (603) and slidingly connected with the limiting slot (602).

6. The Phillips head security screw and its matched fastening device as claimed in claim 5, wherein: A plurality of illuminating lamps (62) are fixedly installed on the end of the handle (6) close to the extension piece (60), a battery slot is arranged in the handle (6) for mounting a battery, the battery is electrically connected with the illuminating lamps (62) through wires, and a rear cover (64) is threadedly installed in the slot of the handle (6).

7. The Phillips head security screw and its matched fastening device as claimed in claim 6, wherein: A U-shaped handle (65) is fixedly connected to the outer wall of the rear cover (64), and a hanging rope (66) is installed on the U-shaped handle (65).

8. The Phillips head security screw and its matched fastening device as claimed in claim 7, wherein: A plurality of convex strips (67) are integrally formed on the circumferential outer wall of the handle (6), a protective sleeve (63) is arranged on the outer side of the handle (6), and the convex strips (67) are located in the protective sleeve (63).

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