A fastener removal tool having a cylindrical end

Abstract

This utility model relates to a fastener assembly / disassembly tool with a cylindrical end, comprising a main support, a strap tightening component, and a tightening control component. A strap fixing component is detachably connected to the inner side of one side of the L-end of the main support, and is fixedly connected to the handheld end on the outer side. One end of the strap is detachably connected to the strap fixing component, and the other end extends through a first through hole at the inner intersection of the L-end into the interior of the handheld end and connects to the strap tightening component. A long, axial third through hole is formed on the wall of the handheld end. One end of the strap tightening component has a second through hole, and the other end has an external thread. A first bolt passes sequentially through the third through hole, the second through hole, and the hole in the strap. The external thread of the strap tightening component connects to the threaded hole of the tightening control component. The protruding edge of the tightening control component abuts against the end of the handheld end without damaging the fastener contact surface. This tool can be used in narrow spaces and is suitable for situations where the cylindrical end dimensions vary significantly.

Description

Technical Field

[0001] This utility model belongs to the field of fastener assembly and disassembly tools, specifically relating to a fastener assembly and disassembly tool with a cylindrical end. Background Technology

[0002] Fasteners are mechanical connecting elements with external threads, typically used to secure two or more components together. They are widely used in machinery, automotive, construction, and electronics industries. They mainly include bolts, which are used in conjunction with nuts to achieve fastening through the engagement of external and internal threads; screws; or fasteners that are directly screwed into the threaded holes of the connected components without the need for a nut.

[0003] Disassembly and assembly tools designed for fasteners with cylindrical ends require special structures to provide sufficient friction while avoiding slippage or surface damage. They also need to take into account factors such as load, environment, and installation conditions. For example, when handling precision instruments or fragile surfaces, or when the cylindrical end dimensions vary significantly, proper selection and installation can greatly improve the reliability and lifespan of the connection. Summary of the Invention

[0004] The purpose of this invention is to provide a fastener assembly / disassembly tool with a cylindrical end that does not damage the fastener contact surface, can be used in narrow spaces, and is suitable for situations where the size of the cylindrical end varies greatly.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A fastener removal and installation tool with a cylindrical end.

[0007] The device includes a main support frame, a strap tightening member 14, and a tightening control member 11. The main support frame includes an L-end 1 and a tubular handheld end 3. A strap fixing member 6 is detachably connected to the inner side of one side of the L-end, and is fixedly connected to the handheld end 3 on the outer side. One end of the strap 5 is detachably connected to the strap fixing member 6, and the other end of the strap 5 passes through the first through hole 10 at the inner intersection of the L-end and extends into the interior of the handheld end 3 to connect with the strap tightening member 14. A long, axial third through hole 9 is provided on the tube wall of the handheld end 3. One end of the strap tightening member 14 has a second through hole 12, and the other end has an external thread. A first bolt 8 passes through the third through hole 9, the second through hole 12, and the hole of the strap 5 in sequence. The tightening control member 11 has a threaded hole that mates with the external thread of the strap tightening member 14, and its protruding edge abuts against the end of the handheld end 3. The external thread of the strap tightening member 14 is connected to the threaded hole of the tightening control member 11, and the protruding edge of the tightening control member 11 abuts against the end of the handheld end 3.

[0008] As a preferred technical solution of this utility model, a semi-circular protrusion 13 is provided on the tube wall of one end of the handheld end 3. The semi-circular protrusion 13 is connected to the U-shaped groove on the outside of the L end and is fixed by the second bolt 2.

[0009] As a preferred technical solution of the present invention, the strap is a steel strip or a plastic strip with holes.

[0010] As a better technical solution for the plate invention, a T-shaped groove is provided on the inner side of one side of the L end, and the strap fastener 6 is a T-shaped block connected in the T-shaped groove and fixed in the threaded hole of the inner wall of the T-shaped groove by the third bolt 7.

[0011] The beneficial effects are as follows:

[0012] This invention is designed for disassembling cylindrical objects, suitable for handling precision instruments or fragile surfaces to avoid scratches, and for situations where the cylindrical dimensions vary greatly and require adjustability, or where space is limited. It applies force efficiently, easily handling tightening or loosening operations, reducing manpower consumption. It is adjustable to accommodate various sizes, reducing the number of tools required. Its detachable and replaceable structure makes it suitable for long-term repeated use. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of the fastener disassembly and assembly tool of this utility model;

[0014] Figure 2 This is a schematic diagram of the main support structure of this utility model;

[0015] Figure 3 This is a structural schematic diagram of the main support frame of this utility model (from another angle);

[0016] Figure 4 This is a structural schematic diagram of the strap tightening component of this utility model;

[0017] Figure 5 This is a structural schematic diagram of the tightening control component of this utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the main support frame and the strap fastener of this utility model after connection; Detailed Implementation

[0019] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] like Figures 1 to 6As shown, the present invention provides a fastener assembly / disassembly tool with a cylindrical end, including a main support, a strap tightening member 14, and a tightening control member 11. The main support includes an L-end 1 and a tubular handheld end 3. A strap fixing member 6 is detachably connected to the inner side of one side of the L-end, and is fixedly connected to the handheld end 3 on the outer side. One end of the strap 5 is detachably connected to the strap fixing member 6, and the other end of the strap 5 extends through a first through hole 10 at the inner intersection of the L-end and into the interior of the handheld end 3 to connect with the strap tightening member 14. A long, axial third through hole 9 is provided on the tube wall of the handheld end 3. One end of the strap tightening member 14 is provided with a second through hole 12, and the other end is provided with an external thread. A first bolt 8 passes through the third through hole 9, the second through hole 12, and the hole of the strap 5 in sequence. The external thread of the strap tightening member 14 is connected to the threaded hole of the tightening control member 11, and the protruding edge of the tightening control member 11 abuts against the end of the handheld end 3.

[0021] In some embodiments, a semi-circular protrusion 13 is present on the tube wall at one end of the handheld end 3. The semi-circular protrusion 13 is connected to the U-shaped groove on the outer side of the L end and is fixed by the second bolt 2.

[0022] In some embodiments, the strap is a perforated steel strip or a plastic strip.

[0023] In some embodiments, a T-groove is provided on the inner side of one side of the L end, and the strap fastener 6 is a T-shaped block connected in the T-groove and fixed in the threaded hole on the inner wall of the T-groove by a third bolt 7.

[0024] In use, the strap 5 is wrapped around the cylindrical end 15 of the fastener, and the strap fixing member 6 is fixed to the L end 1 through a T-slot structure; the free end of the strap passes through the first through hole 10 and enters the handheld end 3, and is fixed to the strap tightening member 14 by the first bolt 8; rotating the tightening control member 11 pushes the strap tightening member 14 axially through the threaded transmission, so that the strap 5 fits tightly against the cylinder. Applying force by gripping the handheld end 3 completes the tightening or loosening.

[0025] This invention can be widely applied in the fields of machinery, automobiles, and electronics, and is especially suitable for precision instrument maintenance, operation in confined spaces, and scenarios involving the use of multiple fastener specifications, significantly improving work efficiency and safety.

[0026] In this invention, the inner side refers to the surface where the two sides of the L-shape are opposite each other.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly, for example, they can refer to a fixed connection, a detachable connection, or an integral part; for those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0028] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0029] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A fastener assembly / disassembly tool with a cylindrical end, characterized in that, include: The main support is composed of an L-end (1) and a tubular hand-held end (3). The inner side of one side of the L-end (1) is detachably connected to a strap fastener (6), and the outer side is fixedly connected to the hand-held end (3). The strap (5) has one end detachably connected to the strap fastener (6), and the other end passes through the first through hole (10) at the intersection of the L end (1) and extends into the hand-held end (3); The strap tightening member (14) is located inside the hand-held end (3), with a second through hole (12) at one end and an external thread at the other end; The tightening control (11) has a threaded hole that mates with the external thread of the strap tightening member (14), and its protruding edge abuts against the end of the hand-held end (3); The handheld end (3) has a long axial third through hole (9) on its tube wall. The first bolt (8) passes through the third through hole (9), the second through hole (12) and the hole of the strap (5) in sequence to fix the strap (5) to the strap tightening member (14).

2. The fastener disassembly and assembly tool with a cylindrical end according to claim 1, characterized in that, The handheld end (3) has a semi-circular protrusion (13) on one end of the tube wall, and the L end (1) has a U-shaped groove on the outer side. The semi-circular protrusion (13) is embedded in the U-shaped groove and fixed by the second bolt (2).

3. The fastener assembly / disassembly tool with a cylindrical end according to claim 1, characterized in that, The strap (5) is a perforated steel strip or a plastic strip.

4. The fastener disassembly and assembly tool with a cylindrical end according to claim 1, characterized in that, A T-shaped groove is provided on the inner side of one side of the L end (1), and the strap fastener (6) is a T-shaped block, which is fixed in the threaded hole of the inner wall of the T-shaped groove by the third bolt (7).

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