RU2744371C1 - Multi-function wrench for connecting/disconnecting or screwing/unscrewing threaded connections - Google Patents

Abstract

FIELD: locksmith operations.

SUBSTANCE: invention relates to a multi-functional wrench for connecting/disconnecting or screwing/unscrewing threaded connections and for performing locksmith operations. The wrench has a handle for holding the tool, a connecting sleeve / sleeve and a removable split ring, consisting of two halves, made with the possibility of connection, the body is split. An additional mechanism is installed in the body with bevel gears forming a differential, which provides continuous one-way rotation of the connecting sleeve / coupling in any direction of rotation of the power handle with its rotation through an angle without manually switching the mechanism, and the output shafts are installed in the working part of the additional mechanism, and the additional mechanism contains in the working part, an external gear train mounted on the second shaft. The outer surface has a toothed shape for contact with the external gear transmission of the additional mechanism, while the removable split ring is made with internal grooves for contact with the protrusions / ribs of the connecting sleeve / coupling for connecting or disconnecting the threaded ends of the pipes, and the nozzle on the other output shaft is made with the possibility installing a drill, tap, screwdriver or socket wrench in it.

EFFECT: creating a wrench that works without idling in any direction of movement of the power handle, as well as without reinstalling the gripper after turning it clockwise or counterclockwise through an angle of up to 360º and without manually switching the direction of rotation of the output shafts.

1 cl, 2 dwg

Description

The invention relates to mechanical engineering, in particular, to a tool or devices with which it is possible to effectively (without idling), for example, connect or disconnect the threaded ends of the pipes by screwing or unscrewing the bushings / couplings and carry out assembly and disassembly with fasteners and locksmith operations.

Such operations in practice are extremely common and time-consuming, while being at the same time laborious, since pipes in buildings, ships, wagons, airplanes and in other equipment (or structures) usually pass near the ceiling, floor or walls, which prevents work with any known tool that does not allow them to rotate the fastener 360 °. Therefore, numerous forced removal and donning of the tool at the place of installation / dismantling sharply reduce labor productivity in such technological operations. In addition, the multifunction wrench allows you to perform many other locksmith work (tapping, drilling holes, etc.).

The patent search showed developments that have common disadvantages: non-versatility of structures, the presence of an idle stroke in the work with a specific tool, the impossibility of rotating the working part of the key or device 360 ° in confined places (for example, in the corner of the structure). In particular, this can be seen from the following patents:

- "Pipe lever wrench" - RF patent No. 2 264 285 C2, IPC B25B 13/50, publ. 20.11.2005, bull. # 32;

- "Pipe wrench for tubing drill pipes" - RF patent №2368490, publ. 09/27/2009;

- "Ratchet wrench with an open mouth" - USSR patent No. 1743834 with ratchet teeth on the outer surface;

- "Gaykovert" - USSR patent No. 1715573 dated 02.29.92, publ. Bulletin M8 (71) with standardized torque from the engine;

- "Nozzle for a wrench" - USSR patent No. 1657363 dated 06/30/92, publ. M24 (71);

- "Device for assembling threaded connections" - USSR author's certificate dated 02.22.89, publ. Bul. 17 (75), contains two pawls, switchable in the opposite direction on a toothed engagement with a rotary plunger device (a complex and unreliable system) - a prototype.

The purpose of the development is to create such a key (tool / mechanism) that will not have an idle stroke in any direction of movement of the power handle, will not require reinstallation of the gripper after turning it clockwise or counterclockwise at any angle, up to 360 °, does not require manual switching of the direction of rotation and will be multifunctional for many locksmith operations.

The technical result is achieved both with the use of a quick-detachable split ring with an external gear design, put on the connecting sleeve / coupling at one threaded end of the pipe, connected to the other threaded end of the second pipe, and using an additional mechanism that provides continuous one-way rotation of the connecting sleeve / coupling when any direction of rotation of the power operating handle with its rotation to any angle without manual switching of the mechanism, and also due to the presence of two output shafts with attachments for a locksmith tool, to carry out work on screwing / unscrewing nuts, bolts, screws, screws and threading in holes, and the ability drilling holes.

The essence of the development is shown in Figures 1 and 2. According to the first figure, we have: the connection of a quick-detachable split ring 1 ^* with an external gear design, put on the connecting sleeve / coupling (here it is removed, like the threaded end of the pipe) at one threaded end of the pipe, connected further with the other threaded end of the second pipe; 2 ^* - connector of two halves of the 1 ^* ring, for example, in the form of a dovetail; 3 ^* - longitudinal groove in the split ring 1 ^* (the number and dimensions of the grooves correspond to the number and shape of the longitudinal protrusions / ribs on the sleeve / coupling worn to connect / disconnect the two threaded ends of the pipes); 4 ^* - toothed outer surface of the ring 1 ^* ; 5 ^* - a gear wheel of an additional mechanism available on the output shaft required for a specific operation. According to the second figure, in the additional mechanism we have: 1 - case, split along the center line; 2 - handle for holding the tool in the required spatial position; 3.9 - wheels of the same type, ratchet, but during assembly they are installed with the opposite orientation of the teeth in the direction; 4, 10 - pawls for ratchet wheels; 5 - carrier, providing, together with the dogs, constant rotation of the nozzles 12 and 14, but in opposite directions; 6 - bevel wheels, forming a differential in the general connection; 7 - bushing; 8 - power working handle, through which the torque is transmitted to the quick-detachable split ring 1 ^* with external gear design; 11, 13 - output shafts with nozzles 12 and 14, into which the required locksmith tool is inserted or instead of it a gear wheel of an additional mechanism is used when working with threaded pipe ends.

Description of the assembly before operating the multi-function wrench before starting the operation of connecting or disconnecting the threaded pipe ends with a coupling / flange, including performing locksmith operations, is as follows. At one threaded end of the pipe, a further screwed-on sleeve / coupling is fixed, having longitudinal projections / ribs on the outer surface, on which a quick-detachable split ring with internal longitudinal grooves is installed from two firmly connected halves with its grooves, coordinated at their location with longitudinal projections / ribs at the sleeve / coupling. At the same time, teeth are cut on the outer surface of the quick-release split ring. An additional mechanism, when in contact with the split ring with a gearing, provides rotation of the split ring, and, consequently, the sleeve / coupling either clockwise or counterclockwise, depending on the type of work (assembly / disassembly or assembly / disassembly of the interface). The gear wheels of the additional mechanism provide the required opposite direction of rotation without idling and continuously in one direction without any switching from the working side. Additional features of the key are that instead of gears on the output shafts from the additional mechanism, you can insert the shanks of the drill, tap, screwdriver, socket wrench into the existing nozzles for work.

Description of the work of technical development, for example, when connecting the threaded ends of two pipes with a sleeve / coupling. We put on the sleeve / coupling on the left threaded end of the pipe with bait on it, and then we put on the quick-detachable split ring. Next, with the proposed wrench, we quickly screw the sleeve / coupling onto the threaded end of the pipe without idling in any direction of rotation of the working power handle of the wrench. Then we press the threaded end of the second pipe to the first pipe and, using a wrench, quickly screw the sleeve / coupling onto this part of the second pipe without idling. Bottom line: the connection is secured.

Additional features of the multifunctional wrench are as follows, which are implemented in practice when using nozzles on the output shafts, into which the shanks of the corresponding tools are inserted:

- drill for performing drilling operations;

- tap for threading in the holes of parts;

- screwdriver (regular and Phillips) for screwing / unscrewing various fasteners such as screws, screws, etc .;

- a socket wrench for tightening / loosening, for example, nuts, bolts.

Claims (1)

A multifunctional wrench for connecting / disconnecting or screwing / unscrewing threaded connections and for performing locksmith operations, containing a power handle and a housing with gear ratchet wheels with pawls installed in it, two output shafts, one of which is equipped with a nozzle, and a carrier, with toothed ratchet wheels are installed with opposite direction of teeth for contact with pawls, providing unidirectional opposite rotation of two output shafts in any direction of rotation of the operating power handle without idling, characterized in that it contains a handle for holding the tool, a connecting sleeve / coupling and a removable split ring consisting of of two halves made with the possibility of connection, the body is split, while an additional mechanism with bevel gears forming a differential is installed in the body, providing continuous one-way rotation of the connecting sleeve / coupling in any direction of rotation power handle with its rotation through an angle without manually switching the mechanism, and the output shafts are installed in the working part of the additional mechanism, and the additional mechanism contains in the working part an external gear train installed on the second shaft, while the outer surface has a gear shape for contact with the external gear transmission of an additional mechanism, while the removable split ring is made with internal grooves for contact with the protrusions / ribs of the connecting sleeve / coupling for connecting or disconnecting the threaded ends of the pipes, and the nozzle on the other output shaft is made with the possibility of installing a drill, tap, screwdriver or socket wrench.

Images