Positioning pin with inner screw hole

Abstract

The utility model relates to the technical field of pins, and discloses a positioning pin with an inner screw hole, which comprises a pin main body, a through groove is arranged on the inner wall of the top end of the pin main body, a cavity is arranged on the inner wall of the bottom end of the pin main body, a threaded surface is arranged on the lower side of the inner wall of the cavity, and an extension component is arranged on the top of the pin main body. Scale marks are arranged on the front side of the outer wall of the pin body. According to the utility model, a hexagonal wrench is used for aligning to the hexagonal groove, or a cross-shaped screwdriver or a straight screwdriver is used for aligning to the cross-shaped groove, and then the turntable and the threaded column are rotated and extend outwards, if the outside of the turntable is arranged on the outer side of the surface of a part, the turntable can be directly rotated manually, and then the outer wall of the threaded column is clamped by the clamping forceps; the pin body is pulled out of the through hole of the part, the threaded column extends outwards from the pin body, the auxiliary effect can be achieved, and the difficulty of part disassembling work is lowered.

Description

Technical Field

[0001] The utility model relates to the technical field of pins, in particular to a positioning pin with an inner screw hole. Background Art

[0002] A dowel is a small metal nail used to fasten and connect materials. It is usually made of steel and has a small diameter head and a tapered tip. It is commonly used in industries such as carpentry, construction, and manufacturing. It is inserted into materials by hammering or using tools such as nail guns to provide a secure connection.

[0003] At present, some of the pins available on the market have a relatively simple structure. When used, most of them are directly inserted into the mounting holes of parts. When the parts are subsequently disassembled, the pins are not easy to be pulled out from the mounting holes due to their relatively smooth surface, which increases the difficulty of the disassembly work. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art and proposes a positioning pin with an inner screw hole, which can play an auxiliary role and reduce the difficulty of parts disassembly through a threaded column extending from the inside to the outside of the pin body.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A positioning pin with an internal screw hole comprises a pin body, the inner wall at the top end of the pin body is provided with a through groove, the inner wall at the bottom end of the pin body is provided with a cavity, the lower side of the inner wall of the cavity is provided with a threaded surface, an extension component is provided at the top of the pin body, and a scale line is provided on the front side of the outer wall of the pin body.

[0007] Furthermore, the extension component includes a threaded column threadedly connected to the inner wall of the through groove, the top of the threaded column is fixedly connected to a turntable, the bottom of the threaded column is rotatably connected to a slide, and the outer wall of the slide is slidably connected to the upper side of the inner wall of the cavity.

[0008] Furthermore, a hexagonal groove is formed on the top of the turntable.

[0009] Furthermore, a cross groove is formed at the bottom end of the inner wall of the hexagonal groove.

[0010] Furthermore, a plurality of protrusions are fixedly connected to the outer wall of the turntable.

[0011] Furthermore, the inner wall diameter of the cavity is larger than the inner wall diameter of the through groove.

[0012] Furthermore, the distance from the outer end of the protrusion to the center of the rotating disk is smaller than the radius of the outer wall of the pin body.

[0013] The utility model has the following beneficial effects:

[0014] In the utility model, through the cooperation of the hexagonal slot, the cross slot, the turntable, the protrusion, the through slot, the threaded column and the slide, a hexagonal wrench is used to align the hexagonal slot, or a cross or flat-head screwdriver is used to align the cross slot, and then the turntable is rotated to rotate the threaded column and extend outward. If the outer part of the turntable is placed outside the surface of the part, the turntable can be directly rotated manually to extend the threaded column from the pin body. The protrusion can increase the friction between the hand and the turntable, and then the outer wall of the threaded column is clamped by a clamping pliers, and the pin body is pulled out of the through hole of the part. The threaded column extends outward from the inside of the pin body, which can play an auxiliary role and reduce the difficulty of the part disassembly work. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of a positioning pin with an inner screw hole proposed by the utility model;

[0016] Figure 2 This is a cross-sectional view of a pin body of a positioning pin with an inner screw hole proposed by the utility model;

[0017] Figure 3 The utility model is a schematic diagram of a turntable structure with a positioning pin with an inner screw hole.

[0018] Legend:

[0019] 1. Pin body; 2. Scale line; 3. Turntable; 4. Slide; 5. Threaded column; 6. Through groove; 7. Threaded surface; 8. Bump; 9. Cavity; 10. Hexagonal groove; 11. Cross groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Reference Figure 1-3The utility model provides an embodiment: a positioning pin with an internal screw hole, including a pin body 1, a through groove 6 is provided on the inner wall of the top end of the pin body 1, a cavity 9 is provided on the inner wall of the bottom end of the pin body 1, and a threaded surface 7 is provided on the lower side of the inner wall of the cavity 9. The pin body 1 is inserted into the through hole of the part, and the threaded surface 7 arranged on the inner wall of the cavity 9 can provide greater friction. When connected with other parts or bases, the fixed surface area and contact surface can be increased, and the stability and bearing capacity of the connection can be improved. The front side of the outer wall of the pin body 1 is provided with scale lines 2. The scale lines 2 arranged on the outer wall of the pin body 1 enable technicians to use the pin body 1 as a reference standard for measuring some small parts when they do not carry measuring tools, which provides certain convenience.

[0022] Specifically, the threaded column 5 is threadedly connected to the inner wall of the through groove 6, the top of the threaded column 5 is fixedly connected to the turntable 3, the bottom of the threaded column 5 is rotatably connected to the slide 4, the inner wall diameter of the cavity 9 is larger than the inner wall diameter of the through groove 6, the outer wall of the slide 4 is slidably connected to the upper side of the inner wall of the cavity 9, the top of the turntable 3 is provided with a hexagonal groove 10, and the bottom of the inner wall of the hexagonal groove 10 is provided with a cross groove 11. If the top of the turntable 3 is kept horizontal with the surface of the part, a hexagonal wrench can be used to align the hexagonal groove 10, or a cross or flat-head screwdriver can be used to align the cross groove 11, and then the turntable 3 is rotated together with the threaded column 5 to extend outward, and the bottom slide 4 slides on the upper side of the cavity 9 until its top The part is against the bottom of the through groove 6, and the outer wall of the turntable 3 is fixedly connected with several protrusions 8. If the outer part of the turntable 3 is placed outside the surface of the part, the turntable 3 can be directly rotated manually to make the threaded column 5 extend from the pin body 1, and the friction between the hand and the turntable 3 can be increased through the several protrusions 8 on the outer wall of the turntable 3, and it is not easy to slip during rotation. The distance from the outward end of the protrusion 8 to the center of the turntable 3 is less than the radius of the outer wall of the pin body 1. Then, the outer wall of the threaded column 5 is clamped with a clamp, and the pin body 1 is pulled out of the through hole of the part. The threaded column 5 extends outward from the inside of the pin body 1, which can play an auxiliary role and reduce the difficulty of part disassembly.

[0023] Working principle: First, through the scale lines 2 set on the outer wall of the pin body 1, the technician can use the pin body 1 as a reference standard for measuring some small parts when not carrying a measuring tool, which provides certain convenience. The pin body 1 is inserted into the through hole of the part. The threaded surface 7 set on the inner wall of the cavity 9 can provide greater friction. When connected with other parts or bases, it can increase the fixed surface area and contact surface, improve the stability and bearing capacity of the connection. Later, when disassembling the parts, if the top of the turntable 3 is kept horizontal with the surface of the part, you can use a hexagonal wrench to align the hexagonal slot 10, or use a cross or flat screwdriver to align the cross slot 11 , and then rotate the turntable 3 to rotate and extend the threaded column 5 outward, and the bottom slide sheet 4 slides on the upper side of the cavity 9 until its top abuts against the bottom of the through groove 6, and then use the clamping pliers to clamp the outer wall of the threaded column 5, and pull the pin body 1 out of the through hole of the part. The threaded column 5 extends outward from the pin body 1, which can play an auxiliary role so that the pin body 1 can be pulled out from between the parts. If the outside of the turntable 3 is placed on the outside of the part surface, the turntable 3 can be directly rotated manually to extend the threaded column 5 from the pin body 1, and the friction between the hand and the turntable 3 can be increased through a number of protrusions 8 on the outer wall of the turntable 3, so that it is not easy to slip when the turntable 3 is rotated.

[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning pin with an inner screw hole, comprising a pin body (1), characterized in that: The inner wall at the top end of the pin body (1) is provided with a through groove (6), the inner wall at the bottom end of the pin body (1) is provided with a cavity (9), the lower side of the inner wall of the cavity (9) is provided with a threaded surface (7), the top of the pin body (1) is provided with an extension component, and the front side of the outer wall of the pin body (1) is provided with a scale line (2).

2. A positioning pin with an inner screw hole according to claim 1, characterized in that: The extension assembly comprises a threaded column (5) threadedly connected to the inner wall of the through groove (6), the top of the threaded column (5) is fixedly connected to the turntable (3), the bottom of the threaded column (5) is rotatably connected to the slide (4), and the outer wall of the slide (4) is slidably connected to the upper side of the inner wall of the cavity (9).

3. A positioning pin with an inner screw hole according to claim 2, characterized in that: The top of the rotating disk (3) is provided with a hexagonal groove (10).

4. A positioning pin with an inner screw hole according to claim 3, characterized in that: A cross groove (11) is formed at the bottom end of the inner wall of the hexagonal groove (10).

5. A positioning pin with an inner screw hole according to claim 2, characterized in that: A plurality of protrusions (8) are fixedly connected to the outer wall of the rotating disk (3).

6. A positioning pin with an inner screw hole according to claim 1, characterized in that: The inner wall diameter of the cavity (9) is greater than the inner wall diameter of the through groove (6).

7. A positioning pin with an inner screw hole according to claim 5, characterized in that: The distance from the outward end of the projection (8) to the center of the rotating disk (3) is smaller than the radius of the outer wall of the pin body (1).

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