TWI505889B - Tapping screw joint structure - Google Patents

Description

Tapping screw joint structure

The invention relates to a tapping screw joint structure, in particular to a joint that is connected to the tapping screw joint end, so that the joint end of the tapping device is presented with a corresponding socket wrench shape, and the tapping screw is convenient to pass through different style tools. Tapping operation.

According to the application of the thread on the general mechanism or equipment, it has almost reached the ubiquitous realm. In the manufacture of the thread, the tapping device is generally used, and the tapping device directly faces the round hole or the circle. The rod can be processed to make the thread easily and quickly. When the internal thread of the nut is made, according to the different production conditions, there are different methods such as turning the lathe, pressing by the rolling machine, and tapping with the tapping; Among them, in the case of a small number of processing, or only the operation of re-tagging the existing internal thread, the most commonly used method is to use a tapping tap to perform internal thread tapping, and use a tapping tap to attack. When the tooth is used, it is generally pre-drilled into a screw hole at the processing place, and then tapped into the pre-drilled screw hole with a screw tap, and the internal thread is cut and formed in the screw hole, because the screw tap is opposite to other tools The small size, easy to carry and easy to use features make it the most widely used internal thread tool.

The tapping screw of the formula has a thread tapping section and a four-corner joint section, and the four corner joint section is provided for the tapping or tapping machine to provide the rotating power of the tapping screw-tapping operation, but the tapping The machine is a large-scale machine, which is not conducive to the simple operation of cost considerations. The tapping device is a hand tool device with special specifications. In addition to the professionals who frequently perform tapping operations, the general operators are still difficult to prepare. There are such appliances.

In view of this, the present inventors have intensively discussed the above-mentioned conventional creation problems, and actively pursued solutions through years of experience in research and development and manufacturing of related industries. After long-term efforts in research and development, the present invention has finally succeeded in developing the present invention. "Tapping screw joint structure", which refers to a kind of joint connected to the tapping screw joint end, so that the tapping screw joint end is presented corresponding to the sleeve wrench The shape of the hand makes it easy for the tapping screw to perform tapping through different styles of tools.

The invention relates to a tapping screw joint structure, in particular to a joint that is connected to the tapping screw joint end, so that the joint end of the tapping device is presented with a corresponding socket wrench shape, and the tapping screw is convenient to pass through different style tools. Tapping operation.

In order to achieve the above-mentioned creative purpose, the "tapping screw joint structure" of the present invention comprises a joint body, a positioning steel ball and a C-shaped buckle. The joint system is an elongated rod shape, and the joint body is formed in the body. There is a joint for inserting the tapping screw, and the inner surface of the joint has a four-corner groove corresponding to the joint end type of the tapping screw, and the joint body has a buckle inwardly recessed around the outer diameter. a slot, and the joint body is formed with a through hole in the inner surface of the buckle ring, and the outer diameter of the joint body has a hexagonal driving section connected by a wrench; the positioning steel ball is disposed at the through hole And presenting a partial extension into the joint port type, the C-shaped buckle is disposed in the buckle groove, and is forced to be positioned at the end of the positioning steel ball, so that the other end of the positioning steel ball normally protrudes into the joint groove; In this way, the tapping screw is inserted into the joint port, and the tapping screw joint section corresponds to the four-corner groove section, so that the tapping screw can be changed through the joint body to change into a hexagonal shape, so as to facilitate the popular wrench. Hand tool It is easy to operate the tapping screw for tapping operation. In addition, through the positioning of the steel ball and the C-shaped buckle, the tapping screw joint inserted into the four-angle groove section can obtain a tight pseudo-position to avoid tapping. The screw is easily disengaged from the joint body.

The inner surface of the joint opening has a circular groove section having an outer diameter larger than the square groove section, and four circular abutting screws are formed between the circular groove section and the four-angle groove section.

The aforementioned hex drive segment corresponds to the outer diameter of the quadrangular groove segment.

It can be seen from the above-mentioned creations that the "Tapping screw joint structure" of the present invention can be used as a combination medium of a wrench and a tapping screw, so that it is convenient for the operator to apply a hand tool (such as a socket wrench or an open end wrench) which is easily available. The rotary tapping screw has been tapped, and the present invention has the advantages of simple operation and convenient application in terms of the tapping screw driving structure (such as a tapping tool and a tapping tool); therefore, the present invention It can be said that it is a kind of practical and progressive creation, which is quite worthy of promotion by the industry and publicized to the public.

1‧‧‧Connector body

11‧‧‧ joint port

111‧‧‧four-corner slot

112‧‧‧round slot

12‧‧‧ buckle ring

13‧‧‧

14‧‧‧hex drive segment

15‧‧‧ arrive at the top

2‧‧‧ Positioning steel balls

3‧‧‧C-ring buckle

4‧‧‧Tapping screw

5‧‧‧ wrench

The first figure is a perspective exploded view of the tapping screw joint structure of the present invention.

The second figure is a perspective view showing the appearance of the tapping screw joint structure of the present invention.

The third figure is a schematic diagram of the implementation of the tapping screw joint structure of the present invention combined with the tapping screw.

The fourth figure is a schematic cross-sectional view of the third figure.

The fifth figure is a schematic diagram of the implementation of the tapping screw driven by the socket wrench of the present invention.

The invention relates to a tapping screw joint structure, in particular to a joint that is connected to the tapping screw joint end, so that the tapping screw joint end is presented with a corresponding socket wrench shape, and the tapping screw is convenient to pass through different style tools. For the tapping operation, as shown in the first to fifth figures, the "tapping screw joint structure" of the present invention includes a joint body 1, a positioning steel ball 2 and a C-shaped buckle 3; the joint body 1 is In the shape of an elongated rod, the joint body 1 is formed with a joint 11 for inserting the tapping screw 4, and the inner surface of the joint 11 has a corresponding corner of the joint end of the tapping screw 4. In the slot portion 111, the joint body 1 is recessed inwardly with a retaining ring groove 12 in the outer diameter, and the joint body 1 is formed with a through hole of the four-way slot portion 111 of the conductive joint 11 in the inner surface of the buckle ring 12. And the outer diameter of the joint body 1 has a hexagonal driving section 14 connected by a wrench 5; the positioning steel ball 2 is disposed on the through hole 13 and partially protrudes into the joint port 11 type, and the C-shaped buckle The 3 series is arranged in the buckle groove 12 and is forced to the end of the positioning steel ball 2, 俾The other end of the positioning steel ball 2 normally protrudes into the four-corner groove section 111 of the joint opening 11; thus, the tapping screw 4 is inserted into the joint opening 11 and the tapping screw 4 joint section corresponds to the square groove section 111, so that the joint can be transmitted through the joint The body 1 changes the tapping screw 4 and the combined section thereof changes to a hexagonal shape, so that the more popular wrench hand tool can easily operate the tapping screw 4 for tapping operation; in addition, through the positioning steel ball 2 and the C-shaped buckle 3 For the benefit, the clamping portion of the tapping screw 4 inserted into the four-corner slot 111 can obtain a tight pseudo-position to prevent the tapping screw 4 from easily coming off the joint body 1.

Further, the inner surface of the joint opening 11 has an outer diameter larger than the square groove section. a circular groove section 112 of the 111, and between the circular groove section 112 and the four-angle groove section 111, four top portions 15 for the tapping screw 4 to abut are formed; thus, the deepest insertion position of the tapping screw 4 is restricted to The combination of the joint body 1 and the tapping screw 4 is stabilized.

Further, the hex drive segment 14 corresponds to the outer diameter of the quadrangular groove segment 111; thus, the position at which the tapping screw 4 is driven still corresponds to its joint portion.

It can be seen from the foregoing creations that the "tapping screw joint structure" of the present invention can be used as a combination medium of the wrench 5 and the tapping screw 4, so that the operator can easily apply hand tools (such as a socket wrench). The open-end wrench) can rotate the tapping screw 4 and perform the tapping operation. Compared with the tapping screw driving structure (such as the tapping device and the tapping tool), the invention has the advantages of simple operation and convenient application.

The above description is only for the purpose of explaining the preferred embodiments of the present invention, and is not intended to limit the invention in any way, so that any modification of the invention may be made in the spirit of the same invention. The changer, if it is otherwise applicable, and has the same effect, should still be included in the scope of the intention of the present invention.

In summary, the "Tapping screw joint structure" of the present invention is practical in terms of structural design and practical use, and the disclosed structural invention has an unprecedented innovative structure, so it has "newness" Sexuality should be undoubtedly considered, and the invention can be more effective than the conventional structure, and therefore has "progressiveness", which fully complies with the provisions of the patent application for invention patents in China's Patent Law. To apply, I would like to ask the bureau to give the patent right in the case as soon as possible.

1‧‧‧Connector body

11‧‧‧ joint port

111‧‧‧four-corner slot

112‧‧‧round slot

12‧‧‧ buckle ring

13‧‧‧

14‧‧‧hex drive segment

15‧‧‧ arrive at the top

2‧‧‧ Positioning steel balls

3‧‧‧C-ring buckle

Claims (3)

A tapping screw joint structure comprising a joint body, a positioning steel ball and a C-shaped buckle; wherein the joint system is an elongated rod shape, and the joint body is formed with a tapping screw insert a joint port, and the inner surface of the joint has a four-corner groove corresponding to the joint end shape of the tapping screw, and the joint body is recessed inwardly with a buckle groove in the outer diameter surrounding shape, and the joint body A through hole is formed in the inner surface of the buckle ring groove, and the outer diameter of the joint body has a hexagonal driving section connected by a wrench; the positioning steel ball is disposed at the through hole and presents a partial penetration. In the joint port type, the C-shaped buckle is disposed in the buckle groove and is forced to be positioned at the end of the positioning steel ball, so that the other end of the positioning steel ball normally protrudes into the four-corner groove of the joint; thus, the tapping screw Inserted into the joint mouth, and the tapping screw joint section corresponds to the square slot section, the joint tapping body can be changed through the joint body to change into a hexagonal shape, so that the more popular wrench hand tool can be easily operated. Tooth screw In addition, through the positioning of the steel ball and the C-shaped buckle, the tapping screw can be inserted into the tapping screw joint section of the four-angle groove section to obtain a tight pseudo-position, so as to avoid the tapping screw easily coming off the joint body. . According to the tapping screw joint structure of the first aspect of the patent application, the inner surface of the joint has a circular groove section having an outer diameter larger than the square groove section, and four rounds are formed between the circular groove section and the four-angle groove section. The tooth screw abuts against the top layer. According to the tapping screw joint structure of the first application of the patent scope, the hexagonal driving section corresponds to the outer diameter of the four-corner groove section.