Pan head cross-shaped self drilling screw

Abstract

The utility model discloses a pan head cross-shaped self drilling screw, which relates to the technical field of fasteners and particularly comprises a pan head, a rotating groove is arranged on the upper surface of the pan head, the lower surface of the pan head is fixedly connected with a screw rod, threads are arranged on the outer wall of the screw rod, and the lower end of the screw rod is fixedly connected with a drill bit and is connected with the screw rod through a sleeve. When the fastener is installed, the screw rod is supported through the support and the supporting rod, fastening is conducted through the screw rod and the thread, and the sleeve is extruded and separated through pressure, so that the screw installation efficiency of a user is improved, the safety efficiency is improved, and potential safety hazards caused by the fact that the user holds the screw by hand for installation are avoided; the lower surface of the pan head is attached to the attaching ring, the outer surface of the screw can be prevented from rusting, the sealing performance during installation can be improved through the fixing ring and the pressing hole, external water or corrosive materials are prevented from entering the connecting inner wall of the screw, the corrosion resistance of the screw can be improved through the corrosion-resistant ring, and therefore the service life of the screw is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a pan head cross self-drilling screw. Background Art

[0002] Fasteners are a general term for a type of mechanical parts used to fasten two or more parts (or components) into a whole. They are widely used in various machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemicals, meters and supplies. They are characterized by a wide variety of specifications, different performances and uses, and a high degree of standardization, serialization and generalization. Screws are one of the most commonly used fastening parts. They use the physical and mathematical principles of the circular rotation of the inclined surface of an object and the friction force to gradually fasten objects and parts. Drilling screws are a new invention in recent years. Drilling screws are screws with self-drilling heads at the front end of the screws. They do not need to be used with nuts. They are also called self-drilling screws. The tail of the drilling screw is in the shape of a drill tail or a pointed tail. There is no need to drill holes and threads on the workpiece first. It can be directly drilled, tapped, and locked on the setting material and the base material. Compared with ordinary screws, drilling screws have higher toughness and retention. They will not loosen after a long time of assembly. They are simple and safe to use. Drilling and tapping can be completed in one operation, saving time, labor and effort. Drilling screws are mainly used as fasteners to fix metal plates such as steel plates. They are generally used to lock metal plates and non-metallic plates, such as calcium silicon plates, gypsum boards and various wooden boards directly on metal plates. Drilling screws with a reasonable design structure can make the metal plate and the matching plate lock firmly, avoid damage and scratches on the matching plate, and are easy to install.

[0003] After searching, the Chinese patent with publication number CN210440379U disclosed that its technical points are: a pan head cross drill screw, including a pan head, a screw and a drill tail, the upper end of the screw is fixedly connected with a support washer, the pan head is threadedly connected to the first fastening threaded rod, the first fastening threaded rod is connected with a pentagonal nut between the pan head and the support washer, the first fastening threaded rod is detachably connected with a support member between the support washer and the pentagonal nut, the drill tail is threadedly connected to the bottom end of the screw, the screw and the drill tail are provided with through holes, the outside of the pan head is provided with a chip removal port connected to the through hole, the top of the pan head is provided with a hexagonal groove, and the bottom of the hexagonal groove is provided with a cross groove and a slot. Compared with the prior art, the advantages of the utility model are: convenient and labor-saving drilling, can be disassembled and installed at will, and good sealing performance.

[0004] The above scheme solves the problem that the existing self-drilling screws are difficult to fix when being drilled in, and it is time-consuming and laborious when preparing to drill in. Although there are components for fixing in the prior art, they are fixed on the screws and cannot be removed after installation, which affects the use. The existing self-drilling screws have poor sealing performance, and external water, dust and the like can easily enter the screw connection part, reducing the connection strength and connection life. For the same type of screws, the convenience of use is too single, and the screws are often limited to screwdrivers or wrenches when tightening, which has great limitations. In addition, the pan head is fixed, and it is not convenient to remove the pan head when it is not needed, which affects the use effect. However, the existing self-drilling screws cannot be supported when drilling into the fasteners, and need to be installed by hand, which has poor safety, and the screws are easily corroded when in contact with the outside world after being tightened to the fasteners.

[0005] Therefore, a new solution is needed to solve this problem Utility Model Content

[0006] In view of the above background technology, the existing drill screws in the prior art cannot be supported when drilling into the fasteners, and need to be installed by hand, which has poor safety, and the screws are easily corroded when in contact with the outside world after fastening the fasteners.

[0007] The utility model discloses a pan head cross drill screw, comprising a pan head, an upper surface of the pan head is provided with a rotation groove, a lower surface of the pan head is fixedly connected to a screw rod, an outer wall of the screw rod is provided with a threaded wire, a lower end of the screw rod is fixedly connected to a drill bit, the outer wall of the screw rod is through-connected with a protective component, and the screw rod is through-connected with a guide support component via the threaded wire.

[0008] Furthermore, the pan head, screw rod and drill bit are integrated, and a magnet is provided on the inner wall of the drill bit.

[0009] Furthermore, the threaded wire and the screw are integrally arranged, and the threaded wire is made of tin bronze.

[0010] Furthermore, the protective component includes a fitting ring, the upper surface of the fitting ring is fixedly connected to the fixing ring, the outer wall of the fixing ring is provided with a pressure hole, the upper surface of the fixing ring is fixedly fitted with the corrosion-resistant ring, the inner wall of the fitting ring is connected with the screw, and the upper surface of the fitting ring is fitted with the lower surface of the disc head.

[0011] Furthermore, the fitting ring is specifically made of silicone material, the inner wall of the fixing ring is connected with the screw through, and the fixing ring is specifically made of waterproof material.

[0012] Furthermore, the guide support assembly includes a sleeve, an outer wall of the sleeve is fixedly connected to the support rod, a lower end of the support rod is fixedly connected to the bracket, and an inner wall of the sleeve is threadedly connected to an outer wall of the screw rod.

[0013] Furthermore, the sleeve is made of PVC material, a thread is formed on the inner wall of the sleeve, the support rod and the bracket are integrally arranged, the bracket is concave in shape, and the bracket is attached to the inner wall of the drill bit through the sleeve.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model arranges a screw, a threaded wire, a sleeve, a support rod and a bracket, and utilizes the sleeve to connect the screw. When installing the fastener, the screw is supported by the bracket and the support rod, and is fastened by the screw and the threaded wire. The sleeve is squeezed apart by pressure, thereby facilitating the user's efficiency in screw installation, improving safety efficiency, and avoiding safety hazards caused by users holding the screws for installation.

[0016] 2. The utility model is provided with a pan head, a rotating groove, a fitting ring, a fixing ring, a pressing hole, and a corrosion-resistant ring. The lower surface of the pan head is fitted with the fitting ring to prevent the outer surface of the screw from rusting. The fixing ring and the pressing hole can improve the sealing during installation to prevent external water or corrosive materials from entering the inner wall of the screw connection. The corrosion-resistant ring can improve the corrosion resistance of the screw, thereby extending the service life of the screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the protective component of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the guide support assembly of the utility model.

[0021] In the figure: 1. Pan head; 2. Rotating groove; 3. Screw; 4. Threaded wire; 5. Drill bit; 6. Protection assembly; 61. Fitting ring; 62. Fixing ring; 63. Pressing hole; 64. Corrosion-resistant ring; 7. Guide support assembly; 71. Sleeve; 72. Support rod; 73. Bracket. DETAILED DESCRIPTION

[0022] The following will disclose multiple embodiments of the utility model with diagrams. For the purpose of clear description, many physical details will be described together in the following description. However, it should be understood that these physical details should not be used to limit the utility model. In other words, in some embodiments of the utility model, these physical details are not necessary. In addition, for the purpose of simplifying the diagram, some conventional structures and components will be depicted in a simple schematic manner in the diagram.

[0023] See also Figure 1-3 The utility model discloses a pan head cross drill screw, comprising a pan head 1, a rotating groove 2 is provided on the upper surface of the pan head 1, the lower surface of the pan head 1 is fixedly connected to a screw rod 3, a threaded wire 4 is provided on the outer wall of the screw rod 3, the lower end of the screw 3 is fixedly connected to a drill bit 5, the outer wall of the screw 3 is connected through a protective component 6, the screw 3 is connected through a guide support component 7 through the threaded wire 4, the pan head 1, the screw rod 3, and the drill bit 5 are integrally arranged, a magnet is provided on the inner wall of the drill bit 5, the threaded wire 4 and the screw rod 3 are integrally arranged, and the threaded wire 4 is made of tin bronze, so as to improve the service life of the screw.

[0024] The protective component 6 includes a fitting ring 61, the upper surface of the fitting ring 61 is fixedly connected to the fixed ring 62, the outer wall of the fixed ring 62 is provided with a pressure hole 63, the upper surface of the fixed ring 62 is fixedly fitted with the corrosion-resistant ring 64, the inner wall of the fitting ring 61 is connected through the screw 3, the upper surface of the fitting ring 61 is fitted with the lower surface of the pan head 1, the fitting ring 61 is specifically made of silicone material, the inner wall of the fixed ring 62 is connected through the screw 3, and the fixed ring 62 is specifically made of waterproof material to improve the corrosion resistance.

[0025] The guide support assembly 7 includes a sleeve 71, the outer wall of the sleeve 71 is fixedly connected to the support rod 72, the lower end of the support rod 72 is fixedly connected to the bracket 73, the inner wall of the sleeve 71 is threadedly connected to the outer wall of the screw rod 3, the sleeve 71 is specifically made of PVC material, and the inner wall of the sleeve 71 is provided with a threaded wire 4, the support rod 72 and the bracket 73 are integrally arranged, the shape of the bracket 73 is concave, and the bracket 73 is attached to the inner wall of the drill bit 5 through the sleeve 71, which is convenient for users to install.

[0026] When using the utility model: the pan head 1 and the screw 3 are installed through the rotating groove 2, the drill bit 5 is used to fit on the outer surface of the fastener, and the sleeve 71 is used to connect with the screw 3. When installing the fastener, the screw 3 is supported by the bracket 73 and the support rod 72, and the screw 3 and the threaded wire 4 are fastened. The sleeve is squeezed and separated by pressure, so as to facilitate the user's efficiency in installing the screw, improve safety efficiency, and avoid safety hazards caused by users holding the screws for installation. The lower surface of the pan head 1 is fitted with the fitting ring 61 to prevent the outer surface of the screw from rusting. The fixing ring 62 and the pressing hole 63 can improve the sealing during installation, prevent external water or corrosive materials from entering the inner wall of the screw connection, and the corrosion-resistant ring 64 can improve the corrosion resistance of the screw, thereby extending the service life of the screw.

[0027] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A pan head cross self drilling screw, comprising a pan head (1), characterized in that: The upper surface of the pan head (1) is provided with a rotation groove (2), the lower surface of the pan head (1) is fixedly connected to the screw rod (3), the outer wall of the screw rod (3) is provided with a threaded wire (4), the lower end of the screw rod (3) is fixedly connected to the drill bit (5), the outer wall of the screw rod (3) is connected through the protective component (6), and the screw rod (3) is connected through the guide support component (7) via the threaded wire (4).

2. A pan head cross self drilling screw according to claim 1, characterized in that: The pan head (1), the screw rod (3) and the drill bit (5) are integrally arranged, and a magnet is arranged on the inner wall of the drill bit (5).

3. The pan head cross self drilling screw according to claim 1, characterized in that: The threaded wire (4) and the screw rod (3) are integrally arranged, and the threaded wire (4) is made of tin bronze.

4. The pan head cross self drilling screw according to claim 1, characterized in that: The protection component (6) comprises a fitting ring (61), the upper surface of the fitting ring (61) is fixedly connected to the fixing ring (62), the outer wall of the fixing ring (62) is provided with a pressing hole (63), the upper surface of the fixing ring (62) is fixedly fitted to the corrosion-resistant ring (64), the inner wall of the fitting ring (61) is connected to the screw (3), and the upper surface of the fitting ring (61) is fitted to the lower surface of the disc head (1).

5. A pan head cross self drilling screw according to claim 4, characterized in that: The fitting ring (61) is specifically made of silicone material, the inner wall of the fixing ring (62) is connected to the screw rod (3) through the inner wall, and the fixing ring (62) is specifically made of waterproof material.

6. The pan head cross self drilling screw according to claim 1, characterized in that: The guide support assembly (7) comprises a sleeve (71), the outer wall of the sleeve (71) is fixedly connected to the support rod (72), the lower end of the support rod (72) is fixedly connected to the bracket (73), and the inner wall of the sleeve (71) is threadedly connected to the outer wall of the screw rod (3).

7. A pan head cross self drilling screw according to claim 6, characterized in that: The sleeve (71) is specifically made of PVC material, and a thread (4) is provided on the inner wall of the sleeve (71). The support rod (72) and the bracket (73) are integrally arranged, and the bracket (73) is concave in shape, and the bracket (73) is attached to the inner wall of the drill bit (5) through the sleeve (71).

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