Portable fastening device for extended screws

Abstract

A portable fastening device (20) for extended cylindrical threads, comprising: a frame (13); a pinion (1); a cylindrical ring gear (2) which receives the rotational movement of the pinion and converts the horizontal rotation of the pinion into a vertical rotation of the chuck, wherein the chuck securely holds the screw / nut for tightening / loosening; a motor (5) operatively connected to the pinion to generate the rotary motion, the motor drawing power from the battery; a speed controller (8) that controls the speed of the motor to prevent damage to the nut / screw due to excessive torque; a digital meter (14) that displays speed, battery status, forward and reverse gears, number of operations, etc.; A double hammer mechanism (15) is connected to the hollow chuck and regulates the rotational pressure after tightening the screw / nut. The double hammer mechanism prevents damage, material deterioration, etc., and the hollow chuck / gear (12 & 2) allows the extended cylindrical threads to pass through its internal cavity for tightening / loosening the nuts over the various lengths of the (long) screw.

Description

TECHNICAL FIELD

[0001] The present invention relates to the field of manufacturing tools and related techniques. More specifically, the present invention relates to a portable fastening device for extended cylindrical threads to shorten the tightening and loosening time of bolts and nuts and reduce manual effort. BACKGROUND

[0002] Bolt and nut fastening devices facilitate the easy removal of bolts and nuts from various machines, tools, equipment, and the like. However, existing fastening devices are not suitable for removing bolts and nuts in complicated locations such as the underside of tables or chairs or in narrow spaces. Some hanging pipelines have long bolts, requiring workers to manually tighten and loosen the nuts. Conventional tools are not suitable for tightening and loosening long bolts. There is no dedicated fastening device for tightening and loosening nuts in long bolts on the market. Accidents often occur when manually tightening / loosening nuts in a hanging position.

[0003] Therefore, there is a need for a portable device for tightening / loosening nuts on long bolts. The present invention effectively overcomes the aforementioned problems, limitations, and disadvantages. OBJECT OF THE INVENTION

[0004] The main object of the present invention is to provide a fastening device for tightening / loosening nuts of long bolts.

[0005] Another objective of the present invention is to reduce accidents caused by manually tightening / loosening nuts while suspended. The screws mounted on top of the roof duct are longer than conventional screws.

[0006] Another object of the present invention is to provide a portable device at an affordable price and of the highest quality.

[0007] Another object of the present invention is to provide a fastening device with speed control and digital measuring function for smooth tightening / loosening of nuts.

[0008] Another object of the present invention is to provide safety features to prevent damage to the nut, bolt and thread due to excessive torque in the wrong direction.

[0009] These and other objects and advantages of the present invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings. SUMMARY

[0010] The various embodiments of the present invention disclose a portable fastening device for extended cylindrical threads to shorten the tightening / loosening time of bolts and nuts and reduce manual effort. The portable fastening device for extended cylindrical threads consists of a frame and a pinion. The cylindrical ring gear receives the rotational movement of the pinion. The ring gear translates the horizontal rotation of the pinion into a vertical rotation of the chuck. The chuck securely holds the bolt / nut for tightening / loosening.

[0011] The motor is operatively connected to the pinion and generates the rotary motion. The motor draws its power from the battery. The speed controller regulates the motor speed to prevent damage to the nut / bolt due to excessive torque. The digital display shows the speed, battery level, forward and reverse gear, number of operations, etc. The double-hammer mechanism with hollow chuck regulates the torque after tightening the screw / nut. The double-hammer mechanism prevents imminent damage, material damage, etc. The hollow chuck / gear allows for the creation of extended cylindrical threads in the internal cavity for tightening / loosening nuts over various bolt spacings.

[0012] The tool is operated via the on / off switch, and the direction of rotation is controlled by the forward / reverse switch. The connecting rod connects the motor output and pinion for vibration-free rotation, which is dampened by the ball bearing. The battery connection charges the battery as needed. The double-hammer mechanism prevents thread breakage due to internal slippage, ensuring precise tightening. The hollow chuck and gearing allow nuts to be loosened and tightened using extended cylindrical threaded rods. The extended cylindrical threaded rod can be inserted through the hollow chuck area to tighten / loosen nuts from various distances.

[0013] These and other aspects of the embodiments described herein will become more fully understood in conjunction with the following description and the accompanying drawings. While the following descriptions show preferred embodiments and numerous specific details, they are illustrative and not limiting. Numerous changes and modifications are possible within the scope of the embodiments described herein without departing from the spirit thereof. The embodiments described herein are intended to include all such modifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Further objects, features, and advantages will become apparent to those skilled in the art from the following description of the preferred embodiment and the accompanying drawings. In these drawings: Fig. the isometric sectional view of the portable fastening device for elongated cylindrical threads according to an embodiment of the present invention. Fig. the isometric view of the portable fastening device for elongated cylindrical threads according to an embodiment of the present invention.

[0015] The specific features of the present invention are shown in some drawings but not in others. This is for clarity only, as each feature of the present invention may be combined with all or some of the other features. DETAILED DESCRIPTION

[0016] The various embodiments, as well as further developments and features, are explained in the following detailed description with reference to the non-limiting details. The depiction of processing techniques of known components has been omitted in order not to unnecessarily obscure the embodiments illustrated herein. The examples used herein are intended to facilitate understanding of the possible applications of the embodiments described herein and to enable those skilled in the art to practice the embodiments described herein. The examples are therefore not to be construed as limiting the scope of application of the embodiments described herein.

[0017] The various embodiments of the present invention disclose a portable fastening device (20) for extended cylindrical threads to shorten the tightening / loosening time of screws / nuts and reduce manual effort. The portable fastening device for extended cylindrical threads consists of a frame and a pinion gear. The device (20) is battery-operated. It also includes a cylindrical ring gear and a hollow chuck. The cylindrical ring gear (2) is configured to receive the rotational movement from the pinion gear. It converts the horizontal rotation of the pinion gear into a vertical rotation of the chuck. The chuck securely holds the screw / nut for tightening / loosening. The motor (5) is operatively connected to the pinion gear to generate the rotational movement. The motor draws its power from the battery.

[0018] Fig. shows the isometric sectional view of the portable fastening device for extended cylindrical threads according to an embodiment of the present invention. The speed controller (8) regulates the motor speed to prevent damage to the nut / bolt due to excessive torque. The digital dial indicator (14) displays the speed, battery level, forward and reverse running, number of operations, etc. The double hammer mechanism (15) is equipped with a hollow chuck to regulate the rotational pressure after tightening the bolt and nut. The double hammer mechanism prevents hazards, material damage, etc. The hollow chuck / gear allows extended cylindrical threads to be passed through its internal cavity for tightening / loosening nuts across various bolt lengths.

[0019] The device's operation can be controlled via the on / off switch (9), and the direction of rotation can be controlled via the forward / reverse switch. The connecting rod connects the motor output and the pinion and transmits the rotational movement vibration-free, with vibration dampened by the ball bearing. The battery connection allows for on-demand charging of the battery.

[0020] Fig. Shows an isometric view of the portable fastening device for extended cylindrical threads according to an embodiment of the present invention. The dual-hammer mechanism prevents thread breakage due to internal slippage, thus achieving precise tightening. The hollow chuck and gear enable the loosening and tightening of nuts from extended cylindrical threaded rods. The extended threaded rod can be inserted through the hollow chuck to loosen and tighten nuts from long bolts.

[0021] In one embodiment, the pinion (1) receives the rotational movement from the motor via the connecting rod. The pinion also reduces the rotational cycle through a gear. The gear transfers the horizontal rotational movement from the pinion to the vertical rotational movement of the chuck. The gear increases the gear ratio to achieve the standard torque. The ball bearing, with a suitable seal on the inside of the frame, prevents vibrations of the motor output shaft. The connecting rod is directly connected to the motor output shaft.

[0022] The DC motor (5) provides the necessary rotational movement of the portable fastening device. The rechargeable battery powers the motor. The battery holder is located in the frame and ensures the battery is securely seated. The charging port is located on the bottom of the device and allows for on-demand charging of the battery.

[0023] In one version, the user can adjust the speed using the speed control. This helps prevent thread damage and similar problems. The device's operation can be controlled using the on / off button.

[0024] In one embodiment, the device can tighten and tighten the screw / nut by operating the forward and reverse buttons. The forward button is used to tighten the screw / nut, and the reverse button is used to loosen the screw / nut.

[0025] In one embodiment, the chuck (12) is used to hold the screw / nut based on the diametrical fit. The chuck can be easily replaced depending on the required size. The chuck is shaped like a hollow shaft. Long screws can be inserted through the hollow shaft to tighten / loosen the nuts. The frame houses all components internally. The gearbox, chuck, and double hammer mechanism have an opening inside for inserting the long screws. The double hammer mechanism prevents overtightening of the screws and material damage.

[0026] The device or machine (20) operates as a semi-automatic screw and nut connector and is powered by a battery-powered motor, enhancing its functionality in various applications, including industrial, automotive, and construction. The gearbox transmits the rotary motion, thus driving the screwing process. It converts the motor power into controlled torque for precise screw tightening. This precision is complemented by structural reinforcement elements that serve as a support frame, ensuring stability, and the alignment of the moving parts inside ensures longevity.

[0027] The tool (20) features a rear-mounted battery compartment, enabling cordless operation while effectively balancing the weight of the tool. External controls such as the on / off switch, torque control, and safety switch ensure efficient operation. The screw head, the working tip of the tool, is designed for gripping and tightening screws and nuts and accommodates various socket sizes or features an automatic adjustment mechanism. A protective housing protects the gear and screw head, preventing the ingress of dust and dirt. At the same time, it is designed for durability and ergonomic handling, ensuring the tool's user-friendliness and reliability even in demanding environments.

[0028] The motor is powered by the lithium-ion battery and transmits power to the bevel gear via a connecting rod. The bevel gear rotates the chuck, which holds the nut. The speed control regulates the chuck's speed, ensuring precise tightening or loosening. The forward / reverse button (10) controls the chuck's rotation direction, allowing both tightening and loosening of nuts.

[0029] The examples of the present invention described above are for illustrative purposes only. Although the present invention has been described using a specific example, numerous modifications are possible without significantly affecting the teachings and advantages of the subject matter described herein. Further substitutions, modifications, and changes are possible without departing from the spirit of the present solution. All features disclosed in this description (including the appended claims, the abstract, and the drawings) and / or all steps of a method or process disclosed therein may be combined in any way, except for combinations in which at least some of these features and / or steps are mutually exclusive.

[0030] Although the embodiments described herein are described with reference to various specific embodiments, it will be understood by those skilled in the art to implement the embodiments described herein with modifications. List of reference symbols: 1 pinion 2 gears 3 ball bearings 4 connecting rod 5 DC motor 6 battery holders 7 Charging port 8 speed controls 9 On / Off button 10 Forward / Backward button 11 Lithium-ion battery 12 drill chucks 13 frames 14 Digital display 15 double hammer mechanism

Claims

[1] A portable fastening device (20) for extended cylindrical threads, comprising: a frame (13); a pinion (1); a cylindrical ring gear (2) which receives the rotational movement of the pinion and converts the horizontal rotation of the pinion into a vertical rotation of the chuck, wherein the chuck securely holds the screw / nut for tightening / loosening; a motor (5) operatively connected to the pinion to generate the rotary motion, the motor drawing power from the battery; a speed controller (8) that controls the speed of the motor to prevent damage to the nut / screw due to excessive torque; a digital meter (14) that displays speed, battery status, forward and reverse gears, number of operations, etc.; A double hammer mechanism (15) is connected to the hollow chuck and regulates the rotational pressure after tightening the screw / nut. The double hammer mechanism prevents damage, material deterioration, etc., and the hollow chuck / gear (12 & 2) allows the extended cylindrical threads to pass through its internal cavity for tightening / loosening the nuts over the various lengths of the (long) screw. [2] A portable fastening device for elongated cylindrical threads according to claim 1, wherein the operation of the device (20) can be controlled via the on / off button and the direction of rotation can be controlled via the forward / reverse button. [3] A portable fastening device for elongated cylindrical threads according to claim 1, wherein the connecting rod (4) connects the motor output and the pinion to transmit the rotational movement without vibration. The vibration is dampened by the ball bearing. [4] A portable fastening device for elongated cylindrical threads according to claim 1, wherein the charging port (7) is configured to charge the battery as needed. [5] A portable fastening device for elongated cylindrical threads according to claim 1, wherein the double hammer mechanism (15) prevents thread breakage due to internal slippage while ensuring accurate tightening. [6] A portable fastening device for extended cylindrical threads according to claim 1, wherein the hollow chuck (12) and the gear enable the removal / tightening of the nuts of extended cylindrical threaded rods. [7] A portable fastening device for extended cylindrical threads according to claim 1, wherein the extended cylindrical threaded rod can be inserted through the hollow chuck portion to tighten / loosen nuts of long bolts.

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