RU164231U1 - UNIVERSAL CLAMP WITH REMOVABLE SPONES - Google Patents

Abstract

ESSAY

A universal key with a removable jaw (hereinafter referred to as a universal key) belongs to the category of bench tools. The universal key is a tool with two handles of direct clamping, with a locking bracket or lever on the handle, a working throat and removable jaws that provide a tight fit and reliable fixation of the untwisted (twisted) object (figure 1). A set of working jaws allows you to fix the product of different diameters and shapes, using muscle strength increased by the lever of the handle, tight fit of the jaws and rigid fixation of the workpiece.

A large selection of tools available to the locksmith can not always ensure reliable fixation of the bolt head, nut, or other fasteners. Often, to unscrew the part, it is necessary to use additives, process the working surfaces to the desired shape, wasting time and spending additional effort. The proposed utility model provides reliable fixation of the head of the fastener (bolt, nut) or the workpiece (rod, hexagon, fittings).

Removable jaws of various shapes securely fix the head of the fastener both by the principle of tightening (for hexagonal heads) and by the principle of penetration of the teeth of the sponges made of tool steel in accordance with GOST 25604-83 in the surface of the metal of the head. The shape of the sponges ensures the fixation of products of four-, six-, octagonal cross-section, round cross-section or products with a large head discharge (figure 2). For circular products, sponges with round straight and oblique spikes are provided, for faceted products - sponges for tight fitting of the head (two-pronged spike) with further fixation with a clamp. The removable jaws are mounted on the key with angular grooves and a ball stop (figure 3). Sponges are made of tool steel GOST 1435-99, grade U8, U9 or similar materials of high hardness.

The key handles are made of steel in accordance with GOST 24372-80 (wrenches), interconnected by a sedentary swivel joint using one pin. Between the handles, a working pharynx is provided, into which the working jaws are inserted, depending on the shape, diameter, section or size of the run-in of the head of the fastener, as well as the fittings, the bar.

The grips of the universal key after setting the workpiece are fastened in working condition using a lever clamp (figure 4) or a ratchet type clamp with a bracket on one handle and teeth on the other (figure 5).

The universal clamping key with removable jaws, as applicable, is on a par with the reverse clamping keys.

Unlike wrenches with a reverse clamp (patent RU 2388588, С2 В25В13 / 18, etc.), a universal wrench of direct clamping allows more reliable fixation of a part, and working jaws allow you to grasp and process parts with a high level of wear, loss of original shape and cross-section.

The universal key of direct clamping is an original design, technologically uncomplicated for mass production, which indicates the patentability of this utility model. The wide applicability of the key for locksmiths, mechanics, car enthusiasts allows us to talk about the prospect of its mass production.

Working removable sponges can have various forms, except those described in this essay. The shape of the sponges can be changed during the trial operation of the product, which can increase its versatility.

This utility model is in addition to other tools, and can greatly facilitate the work of a locksmith, mechanic, repairman.

Author P.I. Borisov

Description

Universal clamping wrench with removable jaws.

The utility model belongs to the category of bench tools.

Keys with a reverse clamp are known from the prior art (see, for example, patent RU 2388588 C2, IPC B25 B13 / 18). In such designs, it is difficult to realize the ability to grasp and process parts with a high level of wear, a change in the initial shape and cross section.

Known open-ended one-way wrenches for union and common nuts (patent RU 2113977 C1, IPC B25B 13/08), which contains a head with an aperture (working pharynx and a handle connected to it with a slot along the entire length of the handle. nuts through which the pipeline passes, the width of the slot in the handle is made larger than the outer diameter of the pipe, and the hole in the head is made hexagonal.The width of the handle can be made decreasing in length towards the end of the handle. The tube is tightened and the tube put on the handle may have an ellipsoidal cross-section.

In essence, this known construction is a direct clamping wrench, and a handle with a slot is identical to a pair of handles for tightly clamping a nut. At the same time, a tight-fitting tube fixes the clamp (that is, it is the simplest locking mechanism) and, to some extent, allows to increase the compression force in comparison with the muscular force. But at the same time, the use of the device is limited only by hexagonal nuts, and the locking mechanism in the form of a tube can jam and slow down during operation.

As a prototype, pliers (pincers) were selected containing a working pharynx with two handles of direct clamping, with a slot on the opposite side of the handles, while parts of the working pharynx at the slot were connected by a hinge. A lever clamp is mounted on the handles of the pliers. At the same time, this mechanism is not an analog of the locking mechanism, since it is an alternative element for applying force (torque), instead of the traditional compression of the handles with the hand (s) of the operator (worker), and contains a square hole for installing a torque wrench (US patent 5598752 A, IPC B25B 7/12).

The objective of the utility model is to create a universal key that provides reliable fixation of parts with various configurations of gripping surfaces, including with a high degree of wear and loss of geometry.

This problem is solved by a universal clamping key, containing a working pharynx with two direct clamping handles, with a slot on the opposite side of the handles, a lever clamp, while parts of the working pharynx at the slot are interconnected by a hinge. According to the proposal, the parts of the working pharynx at the slot are connected with a pin, while the working pharynx is made with removable jaws, and the lever clamp is made in the form of a locking mechanism.

The preferred design for fixing the jaws in the working pharynx is by means of a groove joint and a ball retainer.

The inventive utility model is illustrated by drawings.

In FIG. 1 shows a general view of a universal clamp key with removable jaws.

In FIG. 2 shows the most popular sponge designs.

In FIG. 3 shows the upper part of the working pharynx.

In FIG. 4 shows the locking mechanism.

A universal clamping key with removable jaws (hereinafter referred to as a universal key) contains a working pharynx with two direct clamping handles 1 and a locking mechanism, a working pharynx with a slot, and parts of the working pharynx are connected by a pin 2 with the possibility of slight movement relative to each other by means of information-breeding handles 1. In the working pharynx removable jaws 3 are installed, the working surfaces of which depend on the surface being gripped (see Fig. 2). The sponges are installed and fixed in the working pharynx by means of a groove connection 4 and a ball retainer 5. The locking mechanism is a lever clamp (Fig. 4) whose main element is the clamping lever 6, pivotally mounted on one of the handles 1, which ends with its working end in the cutout other pen 1.

The device operates as follows.

Detachable jaws 3 of various shapes securely fix the head of the fastener (not shown) both by the principle of fitting (for a hexagonal section) and by the principle of penetration of the teeth of the jaws made of tool steel in accordance with GOST 25604-83 in the metal surface of the product. The shape of the jaws 3 (Fig. 2) ensures the fixation of products of four-, six-, octagonal cross-section, circular cross-section or products with a large drawdown. Removable jaws 3 of different shapes securely fix the product both by the principle of fitting (for the saved section), and by the principle of penetration of the teeth of the jaws into the metal surface. For products of circular cross section, sponges with round straight and oblique spikes are provided (Fig. 2), for faceted products, sponges 3 for tight fitting of the head (two-pronged spike). The groove connection 4 and the ball retainer 5 hold the jaw 3 securely in the throat and allow you to quickly replace the jaw 3 if necessary. Sponges 3 are made of tool steel GOST 1435-99, grade U8, U9 or similar materials of increased hardness.

Handles 1 of the universal key are made of steel in accordance with GOST 24372-80 (wrenches). A sedentary swivel made using a single pin 2 allows you to sufficiently part the parts of the pharynx to install the jaws and institutions on the grip part (grip product).

The handles 1 of the universal key after setting the workpiece are fastened in working condition by means of the clamping lever 6, after which the screw is unscrewed or twisted.

The universal clamping wrench with removable jaws, as applicable, is able to be on a par with reverse-acting clamping wrenches, adjustable wrenches.

A large selection of tools available to the locksmith can not always ensure reliable fixation of the bolt head, nut, other fasteners. Often, to unscrew the part, it is necessary to use additives, process the working surfaces to the desired shape, wasting time and spending additional effort. The proposed utility model provides reliable fixation of the head of the fastener (bolt, nut) or the workpiece (rod, hexagon, fittings).

The universal key of direct clamping is an original design, technologically simple for mass production, which indicates the patentability of this utility model according to the criterion of "industrial applicability". The potential demand for the key from locksmiths, mechanics, car enthusiasts also allows us to talk about the prospect of its mass production.

The removable jaws 3 may have various shapes other than those described in this application. The shape of the sponges can be changed during the trial operation of the product, which can increase its versatility.

This utility model is an addition to other tools and devices, and can facilitate the work of a locksmith, mechanic, repairman, which indicates the relevance of industrial production of a universal clamping wrench.

Claims (1)

A universal clamping key containing a working pharynx, having two parts, made with a slot on the opposite side of the handles, while the parts of the working pharynx are interconnected at the slot using a pin, and the working pharynx is made with removable jaws, while the key is equipped with a locking mechanism for fixing the handles after setting the fastener, characterized in that the removable jaws are fixed to the working pharynx by means of a groove connection and a ball retainer, and the locking mechanism is made in the form of a lever clamp .

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