RU193321U1 - Ring wrench head - Google Patents

Abstract

The utility model relates to hand tools. The head of the ring wrench contains a detachable clip with a channel, in engagement with which is a multi-segment detachable impeller with captive segments, the impeller being able to rotate inside the clip. The technical result is the expansion of the scope, increasing the resistance to wear of the working surfaces of the fastener, increasing the strength of the detachable design of the key head, ensuring ease of use of the key, increasing the speed of operations when working with fasteners located in a closed circuit, and reducing the load on the locking element. 2 s.p. f-ly.

Description

The technical field to which the utility model relates.

The utility model relates to hand tools, namely to the head of a spanner wrench and can be used in various fields of technology when assembling, disassembling and setting up machines and mechanisms.

State of the art

A wrench is known (RF patent for the invention No. RU 2506154 C9, class B25B 13/48 (2006.01), publ. 02/10/2014), including a torque application unit, a holder movably connected to a torque application unit, and a fixing gripper housing item. The gripper housing of the fastener has a group of gripping surfaces of the fastener formed by an opening for the fastener having an axis and a side groove through which the elongated element can be inserted into the specified hole for the fastener by moving across the axis of the hole for the fastener. The holder has a free end part and the ability to move between a position in which this free end part is removed from the torque application unit, allowing said elongated element to pass into said side groove, and a position in which the free end part grips the torque application unit so that The torque applied to the torque application unit is transmitted to the holder through the free end portion.

The disadvantages of the known key is the need for preliminary putting on the fastener element of the application node of the torque, followed by putting on the holder and the gripper housing of the fastener; massive dimensions of the holder and gripper housing of the fastener; the inability to apply to fasteners in a closed loop that does not have an elongated narrow element; incomplete girth of the fastener by the torque application unit due to the presence of a side groove.

A known key for pipelines (RF patent for the invention No. RU 2116882 C1, class IPC B25B 13/46 (1995.01), publ. 08/10/1998), which consists of a handle, a working head, which is detachable in the form of two articulated interconnected half-sleeves, on the outer surfaces of which a crown of a T-shaped section is made. The teeth are made on the outer shelf of the crown. The handle is equipped with a movable bracket, forming with its base a U-shaped groove. At the half-sleeves, a rounded tide with a hole and a recess in the form of a tide are made. Half-sleeves are connected by an axis, on the opposite side, when closed, a pin with a ball locking device is inserted into the holes. The movable bracket is connected to the base of the handle by an axis.

The disadvantages of the known key is the need for preliminary putting on the fastener of the working head, followed by putting on the handle; massive dimensions of the working head.

A wrench is known (RF patent for utility model No. RU 164231 U, class B25B 13/50 (2006.01), B25B 13/58 (2006.01), B25B 7/16 (2006.01), publ. 08/20/2016 Bull. No. 23) 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 slot connection and ball retainer, and the locking mechanism is made in the form of a lever clamp.

A disadvantage of the known key is the need for continuous opening and shifting of the key before the implementation of each working stroke of rotation.

Closest to the claimed device is a wrench head (RF patent for the invention No. RU 2554266 C1, class IPC B25B 13/46 (2006.01), publ. 06/27/2015 Bull. No. 18), which consists of a handle, a gear, two dogs and switch. The handle has a head and two grooves. The gear wheel has teeth and is rotatably mounted in the head. The first dog is movably mounted in the first groove for engagement with the gear. The second dog is movably mounted in the second groove for engagement with the gear after disengaging the first dog with the gear. The switch moves the second dog between the first mode, in which the second dog engages with the gear, and the second mode, which prevents the second dog from clutching with the gear. The first groove is offset relative to the second groove by an angle calculated by the formula 360 × (M + 1/2) ÷ N, where N is an integer indicating the number of teeth, and M is any integer.

The disadvantages of the known key is the inability to apply to fasteners in a closed loop in connection with the continuity of the key.

Utility Model Disclosure

The objective of the proposed device is to develop a new device for the head of the key with a rotating impeller, which allows you to take advantage of the ring wrench with a rotating impeller as applied to fasteners in a closed loop.

The technical result is the expansion of the scope of the spanner wrenches with a rotating impeller. The specified technical result is achieved by the fact that the detachable design of the key head can be worn on a closed loop, which makes it possible to use ring spanners with a rotating impeller with fasteners in a closed loop.

EFFECT: increased resistance to wear of working surfaces of a fastener without danger of their deformation when using a detachable design of a head of a ring wrench with a rotating detachable impeller. The specified technical result is achieved due to the complete girth of the fastening element with a detachable rotating impeller. Full girth is ensured by closing tightly fitted segments of a polysegmented detachable rotating impeller when closing the detachable clip.

The technical result is an increase in the strength of the detachable design of the key head. The specified technical result is achieved due to the self-locking design of the detachable head of the ring wrench. At the same time, each segment located simultaneously in adjacent parts of the cage is a closing link that increases the strength of the connection of the closed split cage of the detachable head of the key.

The technical result is the ease of use of the key. The specified technical result is achieved due to the fact that the channel of the cage and the segments are made mutually captive, which makes it easy to open and close the split head.

The technical result is an increase in the speed of operations when working with fasteners located in a closed loop. The specified technical result is achieved due to the detachable design of the head of the key, which makes it possible to use it in closed form as a conventional one-piece head of a ring wrench with a rotating impeller.

EFFECT: reduced load on locking element. The specified technical result is achieved due to self-jamming of segments of a polysegmented detachable rotating impeller in the channel of the detachable cage during a working stroke of rotation of the fastener. In this case, the load associated with the locking of the rotating impeller is distributed to the head holder.

The listed results are achieved by non-parallel combinatorial use of distinctive features (“split sleeve with channel”, “multi-segment split wheel with captive segments”), which in themselves could add some obvious qualities to the technical result: the ability to put the key head on a closed loop, non-dropping segments, etc. The technical result is achieved by the simultaneous simultaneous use of these distinctive features as a single mechanism that ensures It takes into account the very possibility of the existence of such a construction, which, in addition to the obvious ones, gives many unobvious points of the general positive technical result.

These technical results are achieved in that the head of the ring wrench contains a detachable clip with a channel, in engagement with which is a multi-segment detachable impeller with captive segments, the impeller being able to rotate inside the holder.

The crown of the impeller can be made ratchet or gear or worm.

The impeller segments can be painted so that adjacent segments are painted in different colors.

Impeller segments can be galvanized.

Brief Description of the Drawings

In FIG. 1 shows a part of a detachable holder for a head wrench.

In FIG. 2 shows a part of a polysegmented split wheel with captive segments.

In FIG. Figure 3 shows a part of a split cage with a channel and a part of a polysegmented split wheel with captive segments assembled.

In FIG. 4 shows a profile of a detachable holder with a channel and a profile of a multi-segment detachable impeller.

In FIG. 5 shows an example key in a closed state without a ratchet cover.

In FIG. 6 shows a general view of the collected example key in the open state.

In FIG. 7 shows the ratchet mechanism of an example key with a catcher.

The following notation is used in the figures: 1 - a detachable clip, 2 - a channel, 3 - a polysegmented detachable impeller, 4 - captive segments, 5 - handle A of an example key, 6 - handle B of an example key, 7 - ratchet dog, 8 - spring, 9 - axis of swing of the dog, 10 - catcher, 11 - axis of disclosure of the key-example, 12 - lock of the key-example, 13 - screw securing the cover, 14 - cover.

Utility Model Implementation

The head of the ring wrench contains a detachable clip 1 with a channel 2, a multi-segment detachable impeller 3 with captive segments 4.

The crown wrench head is used as follows.

The key head can be disconnected and put on a fastener located in a closed loop. After closing the head, it works as a closed head of a power or kinematic ring wrench. To remove the head, it must be brought into a detachable position - so that the boundary between the segments of the detachable polysegmented rotating impeller coincides with the boundary between the parts of the detachable holder, disconnect the head and remove it from the fastener.

For example, a split head can be used in a ratchet wrench with a rotating impeller.

The specified key (see Fig. 5-7) consists of a detachable sleeve 1 with a channel 2, a detachable multi-segmented rotating impeller 3, consisting of captive segments 4, handles 5 and 6, dog 7, spring 8, axis 9, catcher 10, the axis 11, the lock 12, the fixing screws 13, the cover 14. On each of the handles 5-6, one fixed part of the clip 1 is fixed. When the key is closed and closed, the split clip 1 becomes solid and a hot working can move (rotate) through its channel tool (detachable polysegmented rotating ratchet impeller) with internal engine an hexagon that rotates the nut. To ensure detachability, the impeller 3 (in the given example, the ratchet wheel) is divided into six segments 4, tightly fitted to each other. When the key is opened, the segments do not drop out of the channel, because the channel of the clip and the segments are made mutually captive. Further, in the example, a ratchet mechanism is implemented, consisting of a dog 7, a spring 8, an axis 9, a cover 14 and fixing screws 13. The impeller 3 is made in the form of a split polysegmented ratchet wheel with corresponding teeth. For a clear coincidence of the channel in parts of the cage, a catcher 10 is provided. The key also provides: a lock 12 and an axis of opening 11.

When using the key as a kinematic one (when running the nuts on long threaded studs), it is possible to arrange a pneumatic or microelectric drive on the handle 6 using a gear or worm gear. To do this, the crown of the ratchet impeller should be replaced by the crown of the gear or worm wheel. In this case, on the handle 5, it is advisable to organize a turn-off locking of the impeller for power use of the key.

When the rotation stroke is made, the impeller is locked relative to the cage, and when the reverse (idle) stroke is made, the impeller rotates relative to the cage.

To apply the key as a power key, after closing it, you should first idle at an angle of approximately half the angle of the segment. When the segment is half in one clip and half in the other, it is a locking element. In this position, it is possible to perform a high-torque rotational stroke without damaging the key and interacting elements.

Segments 4 of the wheel 3 can be performed painted through one in contrasting colors so that adjacent segments were painted in different colors. This can be useful so that their position relative to the opening boundaries of the parts of the split sleeve 1 is clearly visible. The painted segments allow you to more clearly see the relative position of the segments 4 of the wheel 3 relative to the boundaries of the parts of the split ring 1.

Staining segments can, for example, be any of the galvanic methods. So, depending on the chemicals used, by chemical oxidation, a shiny or velvet-black color is achieved.

The described key can be used as follows.

Open the lock 12, open the key to the required size, close the key with the impeller on the nut, close the lock 12. The key is ready to work. By swinging the key around the axis of the nut, rotate it in the desired direction. To rotate in the opposite direction, the key must be opened, turned over, closed again and continue working. At the end of work, open and remove the key.

If you want to use the wrench as a power one (for example, to tear off a rusted nut from its place), you need to close the wrench on the nut, idle at an angle of about half the angle of the impeller segment. In the example key, the angle of the segment is 60 degrees, so you should turn the key about 30 degrees. Two segments in this case will be half in different parts of the cage and have a trailing effect. In this reciprocal closed position of the impeller and the cage, it is possible to forcefully perform the working stroke of rotation.

The above example shows only one of the possible implementations of the use of the proposed detachable head of a ring wrench. In particular, the inner surface of the polysegmented impeller and its crown can be of any shape and configuration. The number, size and shape of the segments forming the multi-segmented impeller may be different depending on the particular implementation. The collar clip can also be implemented by any known means.

Benefits of using

Known devices for working with fasteners located in a closed loop do not provide ease of use, speed, reliability of the design, a wide range of applications. They are actually deprived of the advantages of a ring wrench with a movable impeller, although they solve the problem of unscrewing-twisting elements in a closed loop.

The described detachable head is similar to the existing key with a single cap head and with a movable impeller according to the principle of operation in closed form. But its device allows it to be applied to fasteners located in a closed loop.

In comparison with the known devices for working with fasteners located in a closed circuit, the described detachable head provides increased resistance to wear of the working surfaces of the fastener when using the detachable head design of a ring wrench with a rotating impeller, increases the strength of the detachable head design of the key, ease of use of the key , increasing the speed of operations when working with fasteners located in a closed loop, reducing the load on the stopper general element.

A comparative analysis of the claimed device showed that the set of essential features of the claimed device is not known from the prior art and therefore corresponds to the patentability condition "Novelty".

In the prior art, no signs were found that coincided with the distinctive features of the claimed device and affecting the achievement of the claimed technical result.

The above information confirms the possibility of using the presented device as the head of a spanner wrench, which can be used in various fields of technology when assembling, disassembling and tuning machines and mechanisms, and therefore meets the patentability condition “Industrial Applicability”.

Claims (4)

1. The head of the ring wrench containing a detachable cage with a channel in which a detachable impeller is arranged to engage with it, made to rotate inside the casing, characterized in that the impeller is made polysegmented with captive segments. 2. The key head according to claim 1, characterized in that the impeller crown is made in the form of a ratchet or gear or worm wheel. 3. The key head according to claim 1, characterized in that the segments of the impeller are painted so that adjacent segments are painted in different colors. 4. The key head according to claim 3, characterized in that the impeller segments are painted in a galvanic manner.

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