A screw type fixing head

Abstract

This utility model discloses a spiral fixing head, including a fixing nail and a reinforcing member. The reinforcing member includes a central tube with several reinforcing wing plates connected to it and extending radially around its outer periphery. One end of the central tube has a conical countersunk hole, and the other end has several pointed teeth extending in the opposite direction to the conical countersunk hole. The fixing nail includes a rotating part that matches the conical countersunk hole and is frustum-shaped. A nail body is connected to the rotating part. The nail body includes a smooth shaft, a stud, and a self-tapping head. A tower-shaped spring embedded in the conical countersunk hole is fitted onto the rotating part. The smooth shaft is located inside the central hole of the central tube. The stud and the self-tapping head are both located outside the central hole of the central tube. This fixing head connects the fixing nail and the reinforcing member to the substrate by self-tapping screwing in. Because it uses a spiral insertion method, it can be used on slightly softer substrates, overcoming the limitation of conventional fixing heads cracking when used on wood. Combined with the tower-shaped spring, the fixing head connection is tight and reliable.

Description

Technical Field

[0001] This utility model relates to the field of fixing head technology, and more specifically, to a spiral fixing head. Background Technology

[0002] Traditional fixing heads connect directly to hard walls. The fixing screws on these heads often penetrate the wall directly, causing localized cracking at the connection point. If this type of fixing head is used on wood-based materials, the cracking is even more pronounced, limiting its usability and resulting in poor overall performance. Therefore, this invention proposes a spiral fixing head. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a spiral fixing head.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: The utility model relates to a spiral fixing head, which includes a fixing nail and a reinforcing member. The reinforcing member includes a central tube, and a number of reinforcing wing plates connected to and extending radially are distributed around the outer periphery of the central tube. One end of the central tube has a conical countersunk hole, and the other end has a number of sharp teeth extending in the opposite direction to the conical countersunk hole. The fixing nail includes a rotating part that matches the conical countersunk hole and is in the shape of a frustum. A nail body that passes through the central tube is connected to the rotating part. The nail body includes a smooth rod part, a stud part, and a self-tapping head. A tower-shaped spring embedded in the conical countersunk hole is sleeved on the rotating part.

[0005] The present invention is further configured such that: the smooth rod portion is located inside the central hole of the central tube; the stud portion and the self-tapping head are both located outside the central hole of the central tube.

[0006] The present invention is further configured such that the end of the reinforcing wing plate facing away from the canine has a chamfer.

[0007] The present invention is further configured such that the included angle between two adjacent reinforced wing plates is equal.

[0008] The present invention is further configured such that the included angle between two adjacent canines is equal.

[0009] In summary, the present invention has the following beneficial effects: The spiral fixing head involved in the present invention connects the fixing nail to the substrate by means of self-tapping screw insertion. Because it uses a spiral method to penetrate the substrate, it can be used for slightly soft substrates, making up for the limitation of conventional fixing heads cracking when used on wood. Combined with the tower-shaped tower spring, the fixing head connection is tight and reliable, with complete overall function and strong practicality. Attached Figure Description

[0010] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0011] Figure 2 This is a schematic diagram illustrating the structure of the fixing nail in this utility model;

[0012] Figure 3 This is a schematic diagram illustrating the structure of the reinforcement component in this utility model. Detailed Implementation

[0013] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of this utility model, and not for limiting the patent claims of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0014] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0015] Example 1

[0016] See Figures 1 to 3 As shown, the spiral fixing head involved in this embodiment includes a fixing nail 100 and a reinforcing member 200. The reinforcing member 200 includes a central tube 201. Several reinforcing wing plates 202 connected to the central tube 201 and extending radially are arranged around the central tube 201. One end of the central tube 201 has a conical countersunk hole 203, and the other end has several sharp teeth 204 extending in the opposite direction to the conical countersunk hole. The fixing nail 100 includes a rotating part 101 that matches the conical countersunk hole and is in the shape of a frustum. A nail body that passes through the central tube is connected to the rotating part 101. The nail body includes a smooth rod part 102, a stud part 103, and a self-tapping head 104. A tower-shaped tower spring 105 embedded in the conical countersunk hole is sleeved on the rotating part 101.

[0017] Furthermore, the smooth rod portion 102 is disposed inside the central hole of the central tube 201; the stud portion 103 and the self-tapping head 104 are both disposed outside the central hole of the central tube 201.

[0018] Furthermore, the included angle between two adjacent reinforcing wing plates 202 is equal.

[0019] Furthermore, the included angle between two adjacent canines 204 is equal.

[0020] In this embodiment, the cannon 204 is pre-positioned, the reinforcement 200 is placed in the pre-positioned position, and then the central tube 201 is struck with an external hammering tool until the cannon 204 penetrates the wood surface shallowly. Then, the fixing nail 100 with the tower-shaped spring 105 is inserted into the central tube 201 and self-tapping into the wood until the reinforcement 200 is tightly attached to the wood surface, the rotating part 101 sinks into the conical countersunk hole 203, and the tower-shaped spring 105 is compressed and deformed.

[0021] Among them, the reinforcement wing plates 202 are set with equal included angles between adjacent intervals, uniform distribution, and balanced force.

[0022] Among them, by setting the canines 204 to have equal angles between adjacent intervals, they are evenly distributed and subjected to balanced forces.

[0023] Example 2

[0024] See Figures 1 to 3 As shown, the spiral fixing head involved in this embodiment is further configured, based on embodiment 1, with the reinforcing wing plate 202 having a chamfer 205 at the end facing away from the canine.

[0025] In this embodiment, a chamfer is provided at the end of the reinforcing wing plate 202 facing away from the canine, which serves as an installation guide when connecting to external objects.

[0026] The spiral fixing head involved in this utility model connects the fixing nail to the substrate by means of self-tapping screw insertion. Because it uses a spiral method to penetrate the substrate, it can be used on slightly softer substrates, which makes up for the limitation of conventional fixing heads that crack when used on wood. With the help of the tower-shaped tower spring, the fixing head connection is tight and reliable. The overall function is perfect and the practicality is strong.

[0027] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the actual orientation or positional relationship shown. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the embodiments and according to the specific circumstances.

[0028] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A spiral fixing head, comprising a fixing pin and a reinforcing member, characterized in that: The reinforcing component includes a central tube with several reinforcing wing plates connected to it and extending radially around its outer periphery. One end of the central tube has a conical countersunk hole, and the other end has several sharp teeth extending in the opposite direction to the conical countersunk hole. The fixing nail includes a rotating part that matches the conical countersunk hole and is truncated cone-shaped. A nail body that passes through the central tube is connected to the rotating part. The nail body includes a smooth rod part, a stud part, and a self-tapping head. A tower-shaped spring embedded in the conical countersunk hole is fitted onto the rotating part.

2. The spiral fixing head according to claim 1, characterized in that: The smooth rod is located inside the central hole of the central tube; the stud and the self-tapping head are both located outside the central hole of the central tube.

3. The spiral fixing head according to claim 1 or 2, characterized in that: The end of the reinforced wing plate facing away from the canine has a chamfer.

4. The spiral fixing head according to claim 1, characterized in that: The included angle between two adjacent reinforced wing plates is equal.

5. The spiral fixing head according to claim 1, characterized in that: The angle between adjacent canines is equal.

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