CN201425054Y - Stretching type flanging nut - Google Patents

Abstract

A stretching type flanging nut relates to a fixing piece, in particular to a fixing nut. The drawing device comprises a cylindrical body, wherein the body is of a three-layer cylindrical structure from inside to outside, the inner layer is a threaded cylinder with threads, the outer layer is a drawing cylinder without threads, and a space cylinder is arranged between the threaded cylinder on the inner layer and the drawing cylinder on the outer layer; the thread cylinder on the inner layer and the stretching cylinder on the outer layer are integrally formed into an integral structure, and the turnup, bending and stretching of the thread cylinder on the inner layer are surrounded on the stretching cylinder on the outer layer; the thread cylinder of the inner layer is provided with internal threads and external threads which correspond to each other, namely the internal threads of the thread cylinder of the inner layer are protruded and displayed on the outer wall of the thread cylinder to form the corresponding external threads; the internal thread and the external thread are formed by rolling teeth of a die and are formed at one time; the outer wall of the outer layer of the stretching cylinder is provided with an anti-skid groove. The beneficial effects are that: the processing technology is simple, labor and time are saved, energy consumption is saved, the use is convenient, and the fixing effect is good.

Description

A kind of stretched flanging nut

technical field

The utility model relates to a fixing piece, in particular to a fixing nut.

Background technique

Fixing nuts are indispensable fixing parts for various electrical appliances. The fixing nut and the studs matched with it can, for example, fix a certain part on the electrical appliance. The shape of the traditional fixing nut is generally hexahedron, which is convenient to cooperate with fastening tools; its inner wall is tapped with threads, which are called internal threads (internal threads). In the prior art, the internal thread of the fixing nut is generally made by lathe, the process is complicated, labor-intensive and time-consuming, and the man-hour cost of making a small fixing nut is very high.

The market needs a fixed nut with simple processing technology, light weight, less consumables, low cost and easy use.

Utility model content

The utility model aims at the above-mentioned deficiencies of the prior art and the market demand, and introduces a stretch-type flanged nut. It has the characteristics of simple processing technology, light weight, less consumables, low cost and convenient use. It can not only enhance its market competitiveness, but also help save precious non-renewable metal resources and promote sustainable development.

In order to accomplish the above task and achieve the above purpose, a stretched flanged nut of the utility model adopts the following technical scheme:

Construction The utility model is a stretching flange nut, which includes a cylindrical body. The body is a three-layer cylindrical structure from the inside to the outside. The inner layer is a threaded cylinder, and the outer layer is a threaded one Stretching cylinder, the threaded cylinder of the inner layer and the said stretching cylinder of the outer layer are space cylinders; the said threaded cylinder of the inner layer and the said stretching cylinder of the outer layer are integrally formed integral structures, the inner The threaded cylinder of the first layer is folded and stretched to be surrounded by the said stretching cylinder of the outer layer; the said threaded cylinder of the inner layer is made with internal and external threads corresponding to each other, that is, the said thread of the inner layer The internal thread of the barrel protrudes from the outer wall of the threaded barrel as its corresponding external thread.

The above-mentioned technical scheme is further elaborated:

The internal and external threads are formed by rolling the teeth of the die, and are formed at one time.

The outer wall of the stretching cylinder of the outer layer is shaped on an anti-skid groove, which can increase friction when twisting by hand, prevent slipping by twisting by hand, and facilitate twisting by hand.

Compared with the prior art, the utility model has the beneficial effects as follows: firstly, the processing technology is simple, and is divided into three steps: ①, stretching and flanging; ②, rolling; ③ stretching and bending. The three steps are operated in one go, easy to operate, labor-saving and time-saving, no need for labor-consuming and time-consuming turning, which can greatly reduce production and processing costs. Second, saving energy and reducing consumption during processing. The thread of the utility model is formed once by drawing and rolling, which can not only reduce labor intensity, but also save energy consumption. Its three, the utility model is thinner than the nut wall of existing car knurling, and its weight is lighter, can save precious non-renewable metal resources. At the same time, due to the reduced weight, it is not only easy to install, but also can reduce the weight of the product and improve safety. Its 4th, the outer wall of described stretching tube of outer layer is shaped on anti-skid groove, can increase friction when hand-twisting, prevents hand-twisting from slipping, is convenient to hand-twisting rotation. Fifth, the overall visibility is good, because the body has a three-layer cylindrical structure from the inside to the outside, and the overall appearance is thick and solid, eliminating the sense of infirmity caused by thinness and lightness. Sixth, it is easy to use and has a good fixing effect. Seventh, the adaptability is good, and it is convenient to cooperate with the screw rod, so it has a wide range of uses and is suitable for various occasions.

Description of drawings

Fig. 1 is one of the three-dimensional schematic views of the utility model.

Fig. 2 is the second perspective view of the utility model.

Fig. 3 is a schematic diagram of the first step of the processing technology of the present invention - stretch flanging forming.

Fig. 4 is a schematic diagram of the second step of the processing technology of the present invention-rolling forming.

Fig. 5 is a schematic diagram of the third step of the processing technology of the present invention - stretching and bending.

Fig. 6 is a schematic diagram of the fixed use of the utility model.

In the figure: 1. Body, 2. Thread barrel, 3. Stretching barrel, 4. Space barrel, 5. Internal thread, 6. External thread, 7. Anti-skid groove, 8. Mounting part, 9. Mounted part.

Detailed ways

Below, in conjunction with accompanying drawing, introduce the specific embodiment of the present utility model.

As shown in Figures 1 and 2, a tensile flange nut of the utility model is constructed, which includes a cylindrical body 1. The body 1 is a three-layer cylindrical structure from inside to outside, and the inner layer is threaded. The threaded cylinder 2, the outer layer is a stretching cylinder 3 without threads, and the space cylinder 4 is between the said threaded cylinder 2 of the inner layer and the said stretching cylinder 3 of the outer layer; the said threaded cylinder 2 of the inner layer and The stretching tube 3 of the outer layer is an integrated structure formed integrally, and the threaded tube 2 of the inner layer is folded and stretched to be surrounded by the stretching tube 3 of the outer layer; the threaded tube 2 of the inner layer The cylinder 2 is formed with internal threads 5 and external threads 6 corresponding to each other, that is, the internal threads 5 of the threaded cylinder 2 in the inner layer protrude from the outer wall of the threaded cylinder 2 to form corresponding external threads 6 .

The internal thread 5 and the external thread 6 of the threaded cylinder 2 are rolled by a mold and formed in one step.

The outer wall of the described stretching tube 3 of the outer layer is shaped on an anti-slip groove 7, which can increase friction when twisting by hand, prevents the slipping of twisting by hand, and is convenient for twisting by hand.

The joint portion of the threaded cylinder 2 of the inner layer and the stretched cylinder 3 formed by bending and stretching its flanging is flat-bottomed (as shown in Figure 2), which is beneficial to increase the distance between the utility model and the installed part. The contact surface can also enhance the stability of the contact and improve the effect of the utility model for fixing objects.

Fig. 3, 4 and 5 represent three steps of the processing technology of the present utility model. Figure 3 is the first step, stretching and flanging forming. Then proceed to the second step in Figure 4, with the help of the mold, rolling the thread to form the nut. Finally, the third step in Figure 5 is carried out, stretching and bending forming the stretching cylinder. Complete from the first step to the third part at one time without interruption, simple and fast, and improve work efficiency.

Fig. 6 is a schematic diagram of the utility model for fixing. The stud on the mounting part (as switch) is passed through the fixing hole of the installed part 6 (as lamp holder body, ceiling fan, etc.), and the utility model and the stud are tightened by hand.

The above descriptions are only preferred embodiments of the present utility model, and do not limit the technical scope of the present utility model in any way. Under the enlightenment of this technical solution, technical personnel in this industry can make some deformations and modifications. Any modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model still belong to the scope of the technical solution of the utility model.

Claims (4)

1, a kind of drawing flange nut, comprise body cylindraceous (1), it is characterized in that: described body (1) is three layers of tubular structure from inside to outside, internal layer is the thread barrel (2) with screw thread, outer for there not being the stretching tube (3) of screw thread, be space tube (4) between the described thread barrel (2) of internal layer and the outer field described stretching tube (3); The described thread barrel (2) and the outer field described stretching tube (3) of internal layer are the integrative-structure of global formation, and described thread barrel (2) the flange bending of internal layer stretches to be enclosed and is placed in outer field described stretching tube (3); The described thread barrel (2) of internal layer is shaped on internal thread (5) and the outside thread (6) that corresponds to each other, and promptly the internal thread (5) of the described thread barrel (2) of internal layer protrudes the outer wall that is revealed in described thread barrel (2) becomes its corresponding outside thread (6).

2, a kind of drawing flange nut according to claim 1, it is characterized in that: the described internal thread (5) of described thread barrel (2) and outside thread (6) roll tooth by mould and form.

3, a kind of drawing flange nut according to claim 1, it is characterized in that: the outer wall of outer field described stretching tube (3) is shaped on anti-slip tank (7).

4, a kind of drawing flange nut according to claim 1 is characterized in that: the described thread barrel (2) of internal layer and its flange bending stretch form the connecting part of described stretching tube (3) become flat shape.

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