KR102304959B1 - Hose torsion-preventive apparatus for fire hose - Google Patents

Abstract

The present invention relates to a twisting-preventive connection device for a fire hose, and to a connection device which is installed on at least one side or both sides so as to be rotated in a position at which room hoses are connected to each other such that twisting can be prevented. The connection device comprises: a pipe-shaped inner connection part provided such that the hose to which the connection device is installed is fixed, extending in the direction in which the hose is connected, and inserted to be able to rotate; an outer connection part surrounding the outer periphery of the inner connection part, disposed to be attached and detached by fastening in which connection is performed so as to prevent leakage, and supported so as to prevent the inflow of foreign substances; and a rotating part installed between the inner connection part and the outer connection part, installed to be rotated by sliding in a state of being in contact in the thrust direction which is the axial direction, and provided to rotate in a state overlapping the direction in which the inner connection part is connected thereto and in the direction of the hose of the outer connection part.

Description

Tangle-free connector for fire hoses {HOSE TORSION-PREVENTIVE APPARATUS FOR FIRE HOSE}

The present invention relates to a twist preventing connection device for a fire hose, and more particularly, by improving the structure for preventing twisting of fire nozzles interconnecting fire hoses, thereby simplifying the structure, sealing efficiency and preventing the inflow of foreign substances to prevent twisting An object of the present invention is to provide an anti-twist connection device for a fire hose that effectively prevents occurrence.

In general, a fire hose is connected to a fire engine or a fire hydrant so that fire water can be supplied to a fire place.

The fire hose as described above is provided with a connector at both ends, and the connector is composed of a female connector and a male connector with screws.

On the other hand, most of the fire sites such as residential areas have narrow alleyways.

As described above, if the firefighting vehicle is stopped on the alley in the direction of vehicle travel and then the fire hose is connected to the fire engine and deployed, the fire water outlet of the fire fighting vehicle is drawn out to the side of the vehicle. There was a problem that the fire suppression was not smooth due to the pressure loss of the

This pressure loss is the same phenomenon that occurs in the process of deploying a fire hose from a fire hydrant even in a narrow place such as an apartment.

In addition, due to the nature of the woven tube of the fire hose, rotation of the fire hose occurs due to water pressure, and there is no connection structure to absorb it, so the fire hose is twisted or the fire hose is rotated as a whole, so that the fire extinguishing work is not smooth, and the twist is suddenly released. When the fire hose and the nozzle move with great force in an unexpected direction, there is a problem of causing injury due to collision with the user.

Accordingly, recently, a rotatable structure is proposed by inserting a plurality of rotatable balls to prevent twisting of fire hoses when interconnected.

However, as the fire hose twist prevention device of the prior art is rotatably installed with a plurality of balls inserted, the process of inserting the ball into the rotating part of the hose is difficult, and the continuous friction of the hose connection part during rotation after insertion There was a problem in that damage was caused.

In addition, the prior art fire hose twist prevention device has a problem in that the twist is deepened due to excessive rotation when the pressure is removed as the ball slides and rotates.

The present invention has been devised to solve the above problems, and an object of the present invention is to provide a plate-shaped bearing that slides in the thrust direction, which is an axial direction, at a rotating position in order to prevent twisting of the fire nozzles interconnecting the fire hoses. An object of the present invention is to provide an anti-twist connection device for a fire hose that reduces manufacturing costs by simplifying the structure as it is used, and effectively prevents kinking while preventing the inflow of external substances and sealing efficiency.

Objects of the present invention are not limited to the objects mentioned above, and other objects not mentioned will be clearly understood from the description below.

In order to achieve the above object, the anti-twist connection device for a fire hose according to an embodiment of the present invention is installed on at least one or both sides so as to be rotatable at a position where the fire hose is interconnected, and the connection is rotated to prevent kinking. In the device, the hose in which the connection device is installed is provided to be fixed, and the inner connection part provided in the form of a tube that extends in a direction in which the hoses are connected to each other and is inserted so as to be rotatable surrounds the outer periphery of the internal connection part, It is arranged so that it can be detached by fastening in the direction in which it is connected to prevent water leakage and to block the inflow of foreign substances. It is installed to be rotated by sliding in a contact state and includes a rotating part provided to be rotatable in a state in which the inner connection part is connected to each other and the hose direction of the external connection part is overlapped with each other.

In addition, the internal connection part is disposed at a position where the hose installed in the connection device is fixed, is provided in the form of a tube extending in the connection direction, and has a hose connection space inserted and fixed therein in the direction of the hose, An inner fastening groove having an inner connecting protrusion in the form of a protrusion that protrudes so as to fix the hose to the inner surface of the hose connecting space, and in which the rotating unit is installed while being inserted into the outer connecting unit on the outer periphery to provide a rotational force while binding to each other. and may be provided as an internal connection body having an internal connection space through which water supplied from the hose passes.

In addition, the external connection part is disposed on the outer periphery of the internal connection body, is provided with an enlarged diameter so that the internal connection body is inserted therein, and is located on the inner surface at a position corresponding to the internal fastening groove. It has an external fastening groove in which the rotating part that provides rotational force while binding with the connector is installed, and at least one or more inward in a direction in which the external fastening groove is connected to the inner connector to block water leakage at a position in contact with the inner connector An external connection having an external connection space in which an external sealing groove in which an external sealing body is installed is formed, and an external connection having a flow path-shaped discharge flow path provided so that water leaked from the inside is discharged to the outside from the position where the internal coupling body is inserted therein It has an external fastening body that protrudes in the mutually connected direction of the sieve and the external connector and is fastened in a state of being inserted into each other, is fastened to each other when the hose is connected, and is released when the hose is separated. It may include a body.

In addition, the outer sealing body is disposed inside the outer sealing groove, is provided in the form of a ring-shaped sheet so that the cross-sectional area of the English letter "U" is turned upside down by 90 degrees and the open part is located in the connecting direction, so that it can be contracted. Sealing can be maintained during rotation.

In addition, the external connection body and the internal connection body are disposed in the connection direction of the hose so as to surround the outer periphery of the abutting portion in the hose direction, respectively, in the hose direction of the external connection body and the internal connection body It may further include an external blocking cover that expands in the outer circumferential direction in a state inserted at the contact position to block the inflow of foreign substances from the outside.

In addition, the rotating part is disposed between the internal connection body and the external connection body, and is installed over the internal fastening groove and the external fastening groove to bind the internal connector and the external connector to each other in an axial direction. It is provided to be rotated by sliding while in contact in the thrust direction, and one side is opened in a ring shape to distribute the binding pressure while sliding and rotating, and it may be provided with at least one binding box thrust bearing.

And, it is disposed between the binding thrust bearings, and has a through-hole type binding holding insertion hole inserted into the inner binding groove in the center, and having a wave-shaped bend along the outer periphery around the binding holding insertion hole. Accordingly, it may further include a strap spacer retaining member having a strap holding and bending portion for reducing the contact area by making line contact between the binding thrust bearings.

In addition, the inner connection part is disposed at a position where the hose installed in the connection device is fixed, is provided in the form of a tube extending in the connection direction and has a hose connection space inserted and fixed in the hose direction therein, An inner fastening groove having an inner connecting protrusion in the form of a protrusion that protrudes so as to fix the hose to the inner surface of the hose connecting space, and in which the rotating unit is installed while being inserted into the outer connecting unit on the outer periphery to provide a rotational force while binding to each other. Inwardly, it has an internal connection space through which the water supplied from the hose passes, and at least one inner sealing surface to block water leakage at a position in contact with the external connection part toward the inside in the direction in which the internal fastening groove is connected. It may be provided as an internal connector having an internal sealing groove in which the sieve is installed.

In addition, the inner sealing body is disposed inside the inner sealing groove, is provided in the form of a ring-shaped sheet so that the cross-sectional area of the English letter "U" is turned upside down by 90 degrees and the open part is located in the connecting direction, so that it can be contracted. Sealing can be maintained during rotation.

In addition, the external connection part is disposed on the outer periphery of the internal connection body, is provided with an enlarged diameter so that the internal connection body is inserted therein, and the internal connection is provided at a position corresponding to the internal fastening groove on the inner surface. It has an external fastening groove in which the rotating part providing rotational force is installed while binding with a sieve, and is provided in the form of a flow path such that water leaking from the inside is discharged to the outside from the position where the internal connection body is inserted therein. It has an external connector having an external connector and an external fastener each protruding in the mutually connected direction of the external connector and fastened in a mutually inserted state, and is mutually fastened when the hose is connected, and is fastened when the hose is disconnected. It may include an external fastening body that is released.

And, it is disposed in the connection direction of the hose so as to surround the outer periphery of the portion in contact with the external connection body and the internal connection body in the hose direction, in the hose direction of each of the external connection body and the internal connection body. It may further include an external blocking cover that expands in the outer circumferential direction in a state inserted at the contact position to block the inflow of foreign substances from the outside.

In addition, the rotating part is disposed between the internal connection body and the external connection body, and is installed over the internal fastening groove and the external fastening groove to bind the internal connection body and the external connection body to each other in the axial direction. It is provided to be rotated by sliding while in contact in the thrust direction, and one side is opened in a ring shape to distribute the binding pressure while sliding and rotating, and it may be provided with at least one binding box thrust bearing.

In addition, it is disposed between the binding thrust bearings, and has a through-hole type binding holding insertion hole inserted into the inner binding groove in the center, and having a wave-shaped curve along the outer periphery around the binding holding insertion hole. Accordingly, it may further include a strap spacer retaining member having a strap holding and bending portion for reducing the contact area by making line contact between the binding thrust bearings.

In addition, the internal connection part is disposed at a position where the hose installed in the connection device is fixed, is provided in the form of a tube extending in the connection direction, and has a hose connection space inserted and fixed therein in the direction of the hose, An inner fastening groove having an inner connecting protrusion in the form of a protrusion that protrudes so as to fix the hose to the inner surface of the hose connecting space, and in which the rotating unit is installed while being inserted into the outer connecting unit on the outer periphery to provide a rotational force while binding to each other. It is provided in the form of an internal connection body having an internal connection space through which water supplied from the hose passes, and a tube extending in the mutually connected direction of the internal connection body, and a rotational force between the external connection parts is provided. The inner surface of the rotating part provided is supported on the outer surface of the inner connecting body, and may include an inner bearing support whose diameter is enlarged than that of the inner connecting body so as to protrude outward so as to contact and support the connected surface.

And, the external connection parts are respectively disposed on the outer periphery of the internal connection body, are provided with an enlarged diameter so that the internal connection body is inserted therein, and are located on the inner surface at a position corresponding to the internal fastening groove. It has an external connection space in which an external binding groove is formed in which the rotating part providing rotational force is installed while mutually binding with the connector, and a step in which the hose direction surface of the rotating part is supported is provided in the connecting direction of the external connection space. This is reduced to have an external bearing space supported when the rotating part and the internal bearing support are inserted and the hose direction surface of the rotating part is in contact, and the internal bearing support is inserted and contacted in a direction connected to the external bearing space. At least one inner surface has an external sealing groove in which an external sealing body for blocking water leakage is installed at a position in contact with the internal connector, and the water leaked to the inside from the position where the internal connector is inserted therein It has an external connector having a discharge passage in the form of a flow path provided to be discharged to the outside, and an external fastener each protruding at a position where the external connector is interconnected and fastened in a mutually inserted state, when the hose is connected to each other. It is fastened, and may include an external fastening body that is released when the hose is separated.

In addition, the outer sealing body is disposed inside the outer sealing groove, is provided in the form of a ring-shaped sheet so that the cross-sectional area of the English letter "U" is turned upside down by 90 degrees and the open part is located in the connecting direction, so that it can be contracted. Sealing can be maintained during rotation.

In addition, the external connection body and the internal connection body are disposed in the connection direction of the hose so as to surround the outer periphery of the inner connection body abutting in the hose direction, and are in contact with each of the external connection body and the internal connection body in the hose direction Expanded in the outer circumferential direction in the inserted position may further include an external blocking cover to block the inflow of foreign substances from the outside.

In addition, the rotating part is disposed between the internal connector and the external connector, and is installed over the internal fastening groove and the external fastening groove to bind the internal connector and the external connector in an axial direction while mutually binding the thrust. a binding box thrust bearing provided to be rotated by sliding in a state of contact in the direction, and at least one binding box thrust bearing made of a material that is slidably rotated while one side is opened in a ring shape to distribute binding pressure; and the hose direction is supported by the outer bearing space, the mutually connected direction is supported by the inner bearing support, and is provided to rotate by sliding while in contact in the thrust direction, which is the axial direction. It may include a rotary thrust bearing provided with at least one or more materials.

And, it is disposed between the binding thrust bearings, and has a through-hole type binding holding insertion hole inserted into the inner binding groove in the center, and having a wave-shaped bend along the outer periphery around the binding holding insertion hole. Accordingly, it may further include a strap spacer retaining member having a strap holding and bending portion for reducing the contact area by making line contact between the binding thrust bearings.

In addition, the rotary thrust bearing may have a bearing inclined portion that protrudes so as to be inclined at the center in a direction to be interconnected at the outer periphery so that the cross-sectional area becomes a ring-shaped dish shape.

In addition, the rotary thrust bearing is provided in the form of a protrusion in the form of a triangular ring with a cross-sectional area of which the diameter is reduced from one side to the other at the center of the contacting surfaces when stacked with at least one, so as to minimize the contact area while maintaining the spacing during contact. It may further include a retaining projection provided.

In addition, it is disposed between the rotational thrust bearings and has a through-hole type rotational holding insertion hole inserted into the inner connection body at the center, and has a wave-shaped curve along the outer periphery around the rotational holding insertion hole. Accordingly, it may further include a rotational spacing maintaining body having a rotational holding and bending portion for reducing the contact area in line contact between the rotational thrust bearings.

And, it is disposed between the rotational thrust bearings, has a through-hole type rotation holding insertion hole inserted into the inner connection body in the center, and is provided with a material different from the material that is slidably rotated between the rotational thrust bearings and is compressed with each other. It may further include a ring-shaped rotational spacing body to be prevented.

In addition, the inner connection part is disposed at a position where the hose installed in the connection device is fixed, is provided in the form of a tube extending in the connection direction and has a hose connection space inserted and fixed in the hose direction therein, An inner fastening groove having an inner connecting protrusion in the form of a protrusion that protrudes so as to fix the hose to the inner surface of the hose connecting space, and in which the rotating unit is installed while being inserted into the outer connecting unit on the outer periphery to provide a rotational force while binding to each other. Inwardly, it has an internal connection space through which the water supplied from the hose passes, and at least one inner sealing surface to block water leakage at a position in contact with the external connection part toward the inside in the direction in which the internal fastening groove is connected. It is provided in the form of an inner connector having an inner sealing groove in which a sieve is installed and a tube extending in a direction in which the inner connector is interconnected, and the inner surface of the rotating part providing a rotational force between the external connecting parts is the internal connection It is supported on the outer surface of the sieve and may include an inner bearing support having an enlarged diameter than the inner connecting body in order to protrude outwardly so that the connecting direction surfaces are supported in contact.

In addition, the inner sealing body is disposed inside the inner sealing groove, is provided in the form of a ring-shaped sheet so that the cross-sectional area of the English letter "U" is turned upside down by 90 degrees and the open part is located in the connecting direction, so that it can be contracted. Sealing can be maintained during rotation.

In addition, the external connection parts are respectively disposed on the outer periphery of the internal connection body, are provided with an enlarged diameter so that the internal connection body is inserted therein, and are located on the inner surface at a position corresponding to the internal fastening groove. It has an external connection space in which an external fastening groove is formed in which the rotating part providing rotational force is installed while binding with the internal connection body, and a step on which the hose-direction surface of the rotating part is supported in a direction in which the external connection space is connected is provided. When the diameter is reduced and the rotating part and the internal bearing support are inserted, the rotating part has an external bearing space supported when the hose-direction surface of the rotating part is in contact, and water leaking outward from the position where the internal connection body is inserted therein It has an external connector having a discharge passage in the form of a flow path provided to be discharged to the outside, and an external fastener that protrudes at each of the interconnected positions of the external connector and is fastened in a state of being inserted into each other, and when the hose is connected It may include an external fastening body which is coupled to each other and is released when the hose is separated.

And, disposed in the connection direction of the hose so as to surround the outer periphery of the external connection body and the internal connection body abutting in the hose direction, each of the external connection body and the internal connection body in the hose direction Expanded in the outer circumferential direction in the inserted position may further include an external blocking cover to block the inflow of foreign substances from the outside.

In addition, the rotating part is disposed between the internal connection body and the external connection body, and is installed over the internal fastening groove and the external fastening groove to bind the internal connection body and the external connection body to each other in the axial direction. a binding box thrust bearing provided to be rotated by sliding while in contact in the thrust direction, one side being opened in a ring shape and stacked with at least one material that slides and rotates while distributing binding pressure; and the hose direction is supported by the outer bearing space, the mutually connected direction is supported by the inner bearing support, and is provided to rotate by sliding while in contact in the thrust direction, which is the axial direction. and a rotary thrust bearing stacked with at least one material to be used.

In addition, it is disposed between the binding thrust bearings, and has a through-hole type binding holding insertion hole inserted into the inner binding groove in the center, and having a wave-shaped curve along the outer periphery around the binding holding insertion hole. Accordingly, it may further include a; a strap spacer retaining member having a strap holding and bending portion that reduces the contact area by making line contact between the binding thrust bearings.

In addition, the rotary thrust bearing may have a bearing inclined portion that protrudes so as to be inclined at the center in a direction to be interconnected at the outer periphery so that the cross-sectional area becomes a ring-shaped plate shape.

In addition, the rotary thrust bearing is provided in the form of a triangular ring-shaped protrusion with a cross-sectional area of which the diameter is reduced from one side to the other at the center of the mutually contacted surfaces when stacked in the form of a triangular ring-shaped protrusion to minimize the contact area while maintaining the distance during contact. It may further include a retaining projection provided.

In addition, it is disposed between the rotational thrust bearings and has a through-hole type rotational maintenance insertion hole inserted into the inner connection body in the center, and has a wave-shaped bend along the outer periphery around the rotational maintenance insertion hole. Accordingly, it may further include a; rotation interval maintenance body having a rotation holding and bending portion that reduces the contact area by making line contact between the rotation thrust bearings.

In addition, it is disposed between the rotational thrust bearings, has a through-hole type rotation holding insertion hole inserted into the inner connection body in the center, and is provided with a material different from the material that is slidably rotated between the rotational thrust bearings and is mutually compressed. It may further include a ring-shaped rotational spacing body to be prevented.

In addition, the internal connection part is disposed at a position where the hose installed in the connection device is fixed, is provided in the form of a tube extending in the connection direction, and has a hose connection space that is inserted and fixed in the direction of the hose inside, An inner fastening groove having an inner connecting protrusion in the form of a protrusion that protrudes so as to fix the hose to the inner surface of the hose connecting space, and in which the rotating unit is installed while being inserted into the outer connecting unit on the outer periphery to provide a rotational force while binding to each other has an inner connection space through which the water supplied from the hose passes, and at least one inner surface in a direction in which the inner fastening groove is connected to block water leakage at a position in contact with the outer connection part. It is provided in the form of an inner connecting body having an inner sealing groove in which a sealing body is installed and a tube extending in a direction in which the inner connecting body is interconnected, and the inner surface of the rotating unit providing a rotational force between the outer connecting units is the inner surface of the inner connecting unit. It is supported on the outer surface of the connecting body, and may include an inner bearing support whose diameter is enlarged than that of the inner connecting body to protrude outwardly so that the surface in the direction to be connected is supported in contact.

In addition, the external connection part is disposed on the outer periphery of the internal connection body, is provided with an enlarged diameter so that the internal connection body is inserted therein, and the diameter is reduced in the hose direction from the center to the center inward. In each hose direction, a step is formed in which the connecting direction of the inner bearing support is in contact, and an outer bearing space whose diameter is enlarged to surround a part of the outer periphery is formed, and the sealing extension is inserted in the direction to be interconnected at the center It has at least one external sealing groove in which an external sealing body for blocking water leakage is installed at a position in contact with the internal connector on the inner surface at a position in contact with the internal connector, External coupling body having a flow path-shaped discharge flow path provided so that the leaked water is discharged to the outside, each protruding at the mutually connected positions of the external coupling body, and having external coupling bodies fastened in a mutually inserted state, the connection of the hose It is disposed in the direction of each of the hoses that are mutually coupled when the hose is disconnected and that the external fastening body and the external connector are mutually connected when the hose is separated, and the inner bearing support body Having a bearing fixing space surrounding the outer periphery while contacting and supporting the hose direction surface of the rotating part supported in It has a fixed fastening space in which a fixed fastening body fastened to the sieve is formed, and may include a bearing fixed body which is inserted into and fastened to the external bearing space when the rotating part is fixed.

In addition, the outer sealing body is disposed inside the outer sealing groove, is provided in the form of a ring-shaped sheet so that the cross-sectional area of the English letter "U" is turned upside down by 90 degrees and the open part is located in the connecting direction, so that it can be contracted. Sealing can be maintained during rotation.

In addition, it is disposed in the connection direction of the hose so as to surround the outer periphery of the bearing fixture and the inner connection body in contact in the hose direction, and each of the bearing fixture and the internal connection body is in contact in the hose direction. Expanded in the outer circumferential direction in the inserted position may further include an external blocking cover to block the inflow of foreign substances from the outside.

In addition, the rotating part, the hose direction is supported in the bearing fixing space of the bearing fixing body, the mutually connected direction is supported by the inner bearing support body, by sliding in a state in contact in the thrust direction, which is the axial direction. It is provided to rotate and may be provided as a rotary thrust bearing stacked with at least one material that slides and rotates in a ring shape.

In addition, the rotary thrust bearing may have a bearing inclined portion that protrudes so as to be inclined at a center in a direction to be connected from the outer periphery so that the cross-sectional area becomes a ring-shaped plate shape.

In addition, the rotary thrust bearing is provided in the form of a triangular ring-shaped protrusion with a cross-sectional area of which the diameter is reduced from one side to the other at the center of the mutually contacted surfaces when stacked in the form of a triangular ring-shaped protrusion to minimize the contact area while maintaining the distance during contact. It may further include a retaining projection provided.

In addition, it is disposed between the rotational thrust bearings and has a through-hole type rotational maintenance insertion hole inserted into the inner connection body in the center, and has a wave-shaped bend along the outer periphery around the rotational maintenance insertion hole. Accordingly, it may further include a rotational spacing maintaining body having a rotational holding and bending portion for reducing the contact area in line contact between the rotational thrust bearings.

In addition, it is disposed between the rotational thrust bearings, has a through-hole type rotation holding insertion hole inserted into the inner connection body at the center, and is provided with a material different from the material that is slidably rotated between the rotational thrust bearings and is compressed with each other. It may further include a ring-shaped rotational spacing body to be prevented.

And, the inner connection part is disposed at a position where the hose installed in the connection device is fixed, is provided in the form of a tube extending in the connecting direction, and has a hose connection space inserted and fixed in the direction of the hose, An inner fastening groove having an inner connecting protrusion in the form of a protrusion that protrudes so as to fix the hose to the inner surface of the hose connecting space, and in which the rotating unit is installed while being inserted into the outer connecting unit on the outer periphery to provide a rotational force while binding to each other and an internal connection body having an internal connection space through which water supplied from the hose passes is provided in the form of a tube extending in a direction in which the internal connectors are interconnected, and provides a rotational force between the external connection parts The inner surface of the rotating part is supported on the outer surface of the inner connecting body, and the inner bearing support and the inner bearing support whose diameter is enlarged than that of the inner connecting body to protrude outward so as to be supported in contact with the inner connecting body It is provided in the form of a tube extending in the direction to be, and may include a sealing extension provided in the form of a tube having a reduced diameter than the inner bearing support so as to contact a portion sealed between the external connection parts.

In addition, the inner sealing body is disposed inside the inner sealing groove, is provided in the form of a ring-shaped sheet so that the cross-sectional area of the English letter "U" is turned upside down by 90 degrees and the open part is located in the connecting direction. Sealing can be maintained during rotation.

In addition, the external connection part is disposed on the outer periphery of the internal connection body, is provided with an enlarged diameter so that the internal connection body is inserted therein, and the diameter is reduced in the hose direction from the center to the inner surface. In each hose direction, a step is formed in which the connecting direction of the inner bearing support is in contact, and an outer bearing space whose diameter is enlarged to surround a part of the outer periphery is formed, and the sealing extension is inserted in the direction to be interconnected at the center It has at least one external sealing groove in which an external sealing body for blocking water leakage is installed at a position in contact with the internal connector on the inner surface at a position in contact with the internal connector, External coupling body having a flow path-shaped discharge flow path provided so that the leaked water is discharged to the outside, each protruding at the mutually connected positions of the external coupling body, and having external coupling bodies fastened in a mutually inserted state, the connection of the hose An external fastening body that is mutually fastened when the hose is separated and is released when the hose is separated, extends in the hose direction of the external connector, and is provided in the form of a tube extending in the hose direction while surrounding the hose direction of the rotating part. A fixed blocking cover having a screw-type cover fastener as a surface is inserted and disposed inside the fixed blocking cover, and is inserted into the fixed blocking cover so as to be in contact with and supported in the hose direction of the rotating part, and is inserted into the outside to be fastened with the cover fastener. It is arranged to be caught in the hose direction of the fixed cut-off cover in the hose direction of the bearing fixed insert body and the bearing fixed insert body having an insert fastening body around it, and the diameter is enlarged to the hose part of the bearing fixed insert body. It may include a bearing fixture for sealing while being caught in the hose direction of the fixed blocking cover.

In addition, it is disposed in the connection direction of the hose so as to surround the outer periphery of the bearing fixture and the inner connection body in contact in the hose direction, and each of the bearing fixture and the inner connection body is in contact in the hose direction. It may further include; an external blocking cover that expands in the outer circumferential direction in the inserted position to block the inflow of foreign substances from the outside.

In addition, the rotating part, the hose direction is supported in the bearing fixing space of the bearing fixing body, the mutually connected direction is supported by the inner bearing support body, by sliding in a state in contact in the thrust direction, which is the axial direction. It may be provided as a; rotational thrust bearing provided to rotate and provided with at least one or more of a material that is slidably rotated in a ring shape.

In addition, the rotary thrust bearing may have a bearing inclined portion that protrudes so as to be inclined at a center in a direction connected to the outer periphery and inclined so that the cross-sectional area becomes a ring-shaped dish shape.

In addition, the rotary thrust bearing is provided in the form of a triangular ring-shaped protrusion with a cross-sectional area of which the diameter is reduced from one side to the other at the center of the mutually contacted surfaces when stacked in the form of a triangular ring-shaped protrusion to minimize the contact area while maintaining the distance during contact. It may further include a retaining projection provided.

In addition, it is disposed between the rotational thrust bearings and has a through-hole type rotational maintenance insertion hole inserted into the inner connection body in the center, and has a wave-shaped bend along the outer periphery around the rotational maintenance insertion hole. Accordingly, it may further include a; rotation interval maintenance body having a rotation holding and bending portion that reduces the contact area by making line contact between the rotation thrust bearings.

In addition, it is disposed between the rotational thrust bearings, has a through-hole type rotation holding insertion hole inserted into the inner connection body in the center, and is provided with a material different from the material that is slidably rotated between the rotational thrust bearings and is mutually compressed. It may further include a ring-shaped rotational spacing body to be prevented.

Specific details for achieving the above object will become clear with reference to the embodiments described below in detail in conjunction with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but may be configured in various different forms, and these embodiments allow the disclosure of the present invention to be complete and provide common knowledge in the technical field to which the present invention pertains. It is provided to fully inform the possessor of the scope of the invention.

According to one of the above-described means for solving the problems of the present invention, according to an embodiment of the present invention, a plate-shaped plate that slides in the thrust direction, which is an axial direction, is rotated to prevent twisting of the fire nozzles interconnecting the fire hoses. As bearings are used, the structure is simplified to reduce manufacturing costs, and provides the effect of effectively preventing kinking while preventing the inflow of foreign substances and sealing efficiency.

1 is an exploded perspective view showing a twist prevention connection device for a fire hose according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view showing the anti-twist connection device for the fire hose of FIG. 1 .
3 is a partially omitted cross-sectional view showing a main part of the anti-twist connection device for the fire hose of FIG. 1 .
FIG. 4 is a perspective view showing a strap spacer, which is a main part of the anti-twist connection device for a fire hose of FIG. 1 .
5 is a cross-sectional view showing a twist preventing connection device for a fire hose according to a second embodiment of the present invention.
FIG. 6 is a partially omitted cross-sectional view showing a main part of the anti-twist connection device for the fire hose of FIG. 5 .
7 is a cross-sectional view showing a twist preventing connection device for a fire hose according to a third embodiment of the present invention.
8 is a partially omitted cross-sectional view showing a main part of the anti-twist connection device for the fire hose of FIG. 7 .
9 is a perspective view showing a rotational spacing body, which is a main part of the anti-twist connection device for the fire hose of FIG. 7 .
FIG. 10 is a cross-sectional view showing another embodiment of a rotary thrust bearing which is a main part of the anti-twist connection device for a fire hose of FIG. 7 .
11 is a perspective view of another embodiment of the rotational thrust bearing of the anti-twist connection device for the fire hose of FIG. 10 .
12 is a cross-sectional view showing another embodiment of a rotary thrust bearing, which is a main part of the anti-twist connection device for a fire hose of FIG. 7 .
13 is a perspective view showing another embodiment of a rotary thrust bearing, which is a main part of the anti-twist connection device for a fire hose of FIG. 12 .
14 is a cross-sectional view showing a twist preventing connection device for a fire hose according to a fourth embodiment of the present invention.
15 is a partially omitted cross-sectional view showing a main part of the anti-twist connection device for the fire hose of FIG. 14 .
16 is a cross-sectional view showing a twist preventing connection device for a fire hose according to a fifth embodiment of the present invention.
17 is a partially omitted cross-sectional view showing a main part of the anti-twist connection device for the fire hose of FIG. 16 .
18 is a cross-sectional view showing a twist prevention connection device for a fire hose according to a sixth embodiment of the present invention.
19 is a partially omitted cross-sectional view showing a main part of the anti-twist connection device for the fire hose of FIG. 18 .

Since the present invention can have various changes and can have various embodiments, specific embodiments are illustrated in the drawings and will be described in detail through the detailed description. However, this is not intended to limit the present invention to specific embodiments, and it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

In describing the present invention, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, numbers (eg, first, second, etc.) used in the description process of the present specification are only identification symbols for distinguishing one component from other components.

In addition, in this specification, when a component is referred to as "connected" or "connected" with another component, the component may be directly connected or directly connected to the other component, but in particular It should be understood that, unless there is a description to the contrary, it may be connected or connected through another element in the middle.

The suffixes "module" and "part" for the components used in the following description are given or mixed in consideration of only the ease of writing the specification, and do not have a meaning or role distinct from each other by themselves. In addition, in order to clearly explain the present invention, parts irrelevant to the description are omitted from the drawings, and in the drawings, the width, length, thickness, etc. of components may be exaggerated for convenience. Like reference numerals refer to like elements throughout.

Hereinafter, detailed contents for practicing the present invention will be described with reference to the accompanying drawings.

1 is an exploded perspective view showing a twist preventing connection device for a fire hose according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view showing the twist preventing coupling device for a fire hose of FIG. 1, and FIG. It is a partially omitted cross-sectional view showing a main part of the anti-twisting connection device for a hose, and FIG. 4 is a perspective view showing a strap spacer, which is a main part of the anti-twisting connection device for a fire hose of FIG. 1 .

1 to 4 , the anti-twist connection device 100 for a fire hose according to the first embodiment of the present invention is installed on at least one or both sides to enable rotation at a position where the fire hoses are interconnected. It relates to a connecting device that is rotated to prevent it.

That is, it relates to a connection device installed on one or both sides selected in the portion to be connected to the fire hose, and the following description is provided for convenience of explanation by describing the installation on both sides as one embodiment. It is apparent to those skilled in the art that the present invention can be installed only on one selected side to which the hose is connected.

This anti-twist connection device 100 for a fire hose includes an internal connection part 110 , an external connection part 120 , and a rotating part 130 .

Here, the internal connection part 110 , the external connection part 120 , and the rotating part 130 have a difference in the form that they are fastened in a symmetrical form to be interconnected, but this is a common thing, and the same configuration will be described as a pair.

The inner connection part 110 is provided in a pair so that the interconnected hoses are fixed to both sides, respectively, and is provided in the form of a tube that extends in a direction to be connected and is inserted so as to be rotatable.

The internal connection unit 110 is disposed at a position where each hose installed in the connection device is fixed, and is provided in the form of a tube extending in the direction to be connected and is inserted and fixed in the hose connection space in the direction of each hose ( 112), has an inner connecting protrusion 113 in the form of a protrusion that protrudes so that the hose is fixed to the inner surface of the hose connecting space 112, and has a rotational force while being inserted into the outer connecting portion 120 on the outer periphery while binding to each other It is provided with an internal coupling body 111 having an internal fastening groove 116 in which the rotating part 130 providing

The external connection part 120 surrounds the outer periphery of the pair of internal connection parts 110 and is disposed to be detachable by fastening in the direction in which it is connected to prevent water leakage and is supported to block the inflow of external foreign substances.

The external connection unit 120 includes an external connection body 121 , an external fastening body 123 , and an external blocking cover 124 .

The external connector 121 is disposed on the outer periphery of the pair of internal connectors 111, respectively, is provided with an enlarged diameter so that the internal connector 111 is inserted therein, and an internal fastening groove on the inner surface It has an external fastening groove 121b in which a rotating part 130 that provides rotational force while mutually binding with the internal connection body 111 is installed at a position corresponding to the 115, and at least in the direction in which the external fastening groove 121b is connected. It is provided to have an external connection space 121a formed with an external sealing groove 121c in which an external sealing body 122 for blocking water leakage is installed at a position in contact with the internal connection body 111 with one or more inner surfaces thereof.

In addition, it is provided to have a discharge flow path 121e in the form of a flow path provided so that the water leaked therein is discharged to the outside at the position where the internal connection body 111 is inserted into the external connection body 121 .

This, the outer sealing body 122 is disposed inside the outer sealing groove 121c, is provided in the form of a ring-shaped sheet, so that the cross-sectional area of the English letter "U" is turned upside down by 90 degrees and the open part is located in the connecting direction and contracted As this is possible, it is provided to maintain the sealing during rotation.

That is, when the external sealing body 122 is provided in a conventional flat plate shape, interference occurs or damage occurs due to the pressure pressed during rotation, so that the letter "U" is turned over by 90 degrees and opened in the connecting direction. It is possible to maintain airtightness even when rotating in a contracted state by the space generated in between while reinforcing the inside and outside by providing the shape in which the part is located.

The external fastening body 123 has an external fastening body 123a that protrudes at a position where the pair of external connecting bodies 121 are connected to each other and is fastened in a state in which they are inserted into each other, and is mutually fastened when the hose is connected, and the hose It is provided so that the fastening is released when the separation of the.

Here, the external fastening body 123 is installed in a direction to be interconnected so as to be fastened to interconnect the hoses, and it is clear to those skilled in the art that male and female to be inserted for mutual fastening can be selected. do.

The external blocking cover 124 is disposed in the connection direction of the hose so as to surround the outer periphery of the pair of external connector 121 and the internal connector 111 , and the external connector 121 and the internal connector 111 . It may be provided to block the inflow of foreign substances from the outside by expanding in the outer circumferential direction in a state of being inserted at a position in contact with each of the hoses.

The rotating part 130 is disposed between the internal connection part 110 and the external connection part 120 and is installed to rotate by sliding while in contact in the thrust direction, which is the axial direction, so that the interconnection direction of the internal connection part 110 and It is provided so as to be rotatable in a state overlapped with each other in the hose direction of the external connection part 120 .

The rotating part 130 includes a binding thrust bearing 131 , and a binding spacing maintaining body 132 .

The binding box thrust bearing 131 is disposed between the internal connection body 111 and the external connection body 121, is installed over the internal fastening groove 115 and the external fastening groove 121b, and the internal connector 111 and It is provided to rotate by sliding while in contact with the external connector 121 in the thrust direction, which is the axial direction, and one side is opened in a ring shape and is laminated with at least one material that slides and rotates while distributing the binding pressure. provided

The strap spacing maintaining body 132 is disposed between the plurality of binding thrust bearings 131, and has a binding holding insertion hole 132a of a through-hole type inserted into the inner binding groove 115 in the center, and the binding holding insertion hole. As it has a wave-shaped curve along the outer periphery around (132a), it is provided to have a bond holding bending portion 132b that reduces the contact area by line contact between the plurality of binding thrust bearings 131 .

FIG. 5 is a cross-sectional view showing a twist preventing connection device for a fire hose according to a second embodiment of the present invention, and FIG. 6 is a partially omitted cross-sectional view showing a main part of the twist preventing coupling device for a fire hose of FIG. 5 .

5 and 6 , the anti-twist connection device 100 for a fire hose according to the second embodiment of the present invention includes an internal connection part 110 , an external connection part 120 , and a rotating part 130 .

Here, the rotating part 130 is the same as the configuration of the first embodiment of the present invention shown in FIGS. 1 to 4 , and the internal connection part 110 and the external connection part 120 also have a similar configuration, but there is a difference in the sealing structure. As there is, the internal connection part 110 and the external connection part 120 will be described as follows.

The internal connection part 110 is disposed at a position where each hose installed in the connection device is fixed, is provided in the form of a tube extending in the connection direction, and is inserted and fixed in the hose connection space 112 in the direction of each hose. has an inner connecting protrusion 113 in the form of a protrusion protruding so that each hose is fixed to the inner surface of the hose connecting space 112, and the rotational force while being inserted into the outer connecting portion 120 on the outer periphery while binding to each other It has an internal fastening groove 116 in which the rotating part 130 providing It is provided as an inner connector 111 having an inner sealing groove 114 in which at least one inner sealing body 119 for blocking water leakage is installed at a position in contact with the external connection part 120 on its inner surface.

The above-described inner sealing body 119 is disposed inside the inner sealing groove 114, is provided in the form of a ring-shaped sheet, so that the cross-sectional area of the English letter "U" is turned upside down by 90 degrees and the open part is located and contracted As this is possible, it may be provided to maintain sealing during rotation.

The external connection part 120 includes an external connection body 121 and an external fastening body 123 .

The external connector 121 is disposed on the outer periphery of the internal connector 111, is provided with an enlarged diameter so that the internal connector 111 is inserted therein, and an internal fastening groove 115 on the inner surface. It has an external fastening groove 121b in which the rotating part 130 that provides rotational force while mutually binding the internal connector 111 to a position corresponding to the An external connection space (121a) having a discharge flow path (121e) in the form of a flow path provided so that the water leaked therein is discharged to the outside is provided.

The external fastening body 123 has an external fastening body 123a that protrudes in the mutually connected direction of the external connector 121 and is fastened in a state in which they are inserted into each other, and is mutually fastened when the hose is connected, and the hose is separated. It is provided so that the fastening is released at the time.

Here, the external fastening body 123 has different shapes in male and female forms, but a detailed description thereof will be omitted as it belongs to the conventional technology.

7 is a cross-sectional view showing a twist preventing connection device for a fire hose according to a third embodiment of the present invention, FIG. 8 is a partially omitted cross-sectional view showing a main part of the twist preventing connection device for a fire hose of FIG. 7, FIG. 9 is 7 is a perspective view showing a rotational spacing body, which is a main part of the anti-twist connection device for a fire hose.

7 to 9 , the anti-twist connection device 100 for a fire hose according to the third embodiment of the present invention includes an internal connection part 110 , an external connection part 120 , and a rotating part 130 .

Here, the internal connection part 110, the external connection part 120, and the rotating part 130 according to the third embodiment of the present invention are the internal connection part 110 of the first embodiment of the present invention shown in FIGS. 1 to 4, The structure in which the coupling thrust bearing 131 is installed in the external connection part 120 and the rotating part 130 structure is similar, and the configuration of the rotating part 130 is added. same as

The internal connection part 110 includes an internal connection body 111 and an internal bearing support 117 .

The internal connection body 111 is disposed at a position where each hose installed in the connection device is fixed, is provided in the form of a tube extending in the connection direction, and is inserted and fixed in the hose connection space 112 in the direction of each hose. ), and has an inner connection protrusion 113 in the form of a protrusion that protrudes so that each hose is fixed to the inner surface of the hose connection space 112, and while being inserted into the external connection part 120 on the outer periphery, while binding to each other It has an internal fastening groove 116 in which the rotating part 130 providing rotational force is installed, and is provided to have an internal connection space 115 through which water supplied from a hose passes.

The inner bearing support 117 is provided in the form of a tube extending in the mutually connected direction of the inner connecting body 111 , and the inner surface of the rotating part providing rotational force between the external connecting parts 120 is the inner connecting body 111 . ) is supported on the outer surface, and is provided to enlarge the diameter of the inner connection body 111 in order to protrude outwardly so that the connected direction surface is supported in contact.

The external connection part 120 includes an external connection body 121 , an external fastening body 123 , and an external blocking protrusion 124 .

The external connector 121 is disposed on the outer periphery of the pair of internal connectors 111, respectively, is provided with an enlarged diameter so that the internal connector 111 is inserted therein, and an internal fastening groove on the inner surface It has an external connection space 121a formed with an external fastening groove 121b in which a rotating part providing rotational force is installed while binding with the internal connection body 111 at a position corresponding to the 115, and the external connection space 121a The diameter is reduced to provide a step on which each lake-direction surface of the rotating unit 130 is supported in the mutually connected direction, and the rotating unit 130 and the inner bearing support 117 are inserted so that one side of the rotating unit is in contact with the outside supported when it is in contact. Having a bearing space 121d, at least one at a position where the inner bearing support 117 is inserted and contacted in a direction interconnected to the outer bearing space 121d is in contact with the inner connecting body 111 with the inner surface. An external sealing groove 121c in which an external sealing body 122 for blocking water leakage is installed is provided to be formed.

In addition, it is provided to have a discharge flow path 121e in the form of a flow path provided so that the water leaked therein is discharged to the outside at the position where the internal connection body 111 is inserted into the external connection body 121 .

This, the outer sealing body 122 is disposed inside the outer sealing groove 121c, is provided in the form of a ring-shaped sheet, so that the cross-sectional area of the English letter "U" is turned upside down by 90 degrees and the open part is located in the connecting direction and contracted As this is possible, it is provided to maintain the sealing during rotation.

That is, when the external sealing body 122 is provided in a conventional flat plate shape, interference occurs or damage occurs due to the pressure pressed during rotation, so that the letter "U" is turned over by 90 degrees and opened in the connecting direction. It is possible to maintain airtightness even when rotating in a contracted state by the space generated in between while reinforcing the inside and outside by providing the shape in which the part is located.

The external fastening body 123 has an external fastening body 123a that protrudes at a position where the pair of external connecting bodies 121 are connected and is fastened in a state in which they are inserted into each other, and is mutually fastened when the hose is connected, It is provided so that the fastening is released at the time of separation.

Here, the external fastening body 123 is installed in a direction in which it is connected to be fastened in order to interconnect the hoses, and it is clear to those skilled in the art that the male and female inserted for mutual fastening can be selected. .

The external blocking protrusions 124 are respectively protruded in the connection direction of the hose so as to surround the outer periphery of the internal connector 111 of the pair of external connector 121, and the portion into which the internal connector 111 is inserted. It is provided to protrude in order to prevent the exposure of the outside and is provided to block the inflow of foreign substances.

In addition, the external blocking cover 124 is disposed in the connection direction of the hose so as to surround the outer periphery of the pair of external connector 121 and the internal connector 111, the external connector 121 and the internal connector ( 111) expanded in the outer circumferential direction in the state inserted at the position in contact with the hose in the direction of each of the hoses may be provided to block the inflow of foreign substances from the outside.

The above-described external blocking protrusion 124 and external blocking cover 124 may be selectively installed to prevent the inflow of foreign substances, respectively, or both may be installed to block the inflow of foreign substances.

The rotating part 130 includes a binding box thrust bearing 131 , a binding spacing maintaining body 132 , a rotating thrust bearing 133 , and a rotating spacing maintaining body 134 .

The binding box thrust bearing 131 is disposed between the internal connection body 111 and the external connection body 121, is installed over the internal fastening groove 115 and the external fastening groove 121b, and the internal connector 111 and It is provided to rotate by sliding while in contact with the external connector 121 in the thrust direction, which is the axial direction, and one side is opened in a ring shape and is laminated with at least one material that slides and rotates while distributing the binding pressure. provided

The strap spacing maintaining body 132 is disposed between the plurality of binding thrust bearings 131, and has a binding holding insertion hole 132a of a through-hole type inserted into the inner binding groove 115 in the center, and the binding holding insertion hole. As it has a wave-shaped curve along the outer periphery around (132a), it is provided to have a bond holding bending portion 132b that reduces the contact area by line contact between the plurality of binding thrust bearings 131 .

The rotary thrust bearing 133 is supported in the direction of each hose in the outer bearing space 121d, and the direction in which they are connected is supported by the inner bearing support 117, which is in contact with the axial thrust in the thrust direction. It is provided so as to be rotated by a ring, and is provided by stacking at least one or more of a material that is slidably rotated in a ring shape.

10 is a cross-sectional view showing another embodiment of a rotary thrust bearing which is a main part of the anti-twist connection device for a fire hose of FIG. 7, and FIG. is a perspective view.

Referring to FIGS. 10 and 11 , another embodiment of the rotating thrust bearing 133, which is a main component of the anti-twist connection device 100 for a fire hose according to the third embodiment of the present invention, will be described.

The rotary thrust bearing 133 may be provided to have a bearing inclined portion 133a that protrudes so as to be inclined at the center in a direction to be interconnected at the outer periphery and has a cross-sectional area in a ring-shaped dish shape.

That is, the rotary thrust bearing 133 is provided in the form of a plate so that one side is in contact with the outer periphery, and the center portion of the other side is in line contact with each other, and as the contact area is reduced, at least one or more overlapping rotary thrust bearings ( 133) is prevented from being pressed against each other, and sliding efficiency can be improved.

12 is a cross-sectional view showing another embodiment of a rotary thrust bearing which is a main part of the anti-twist connection device for a fire hose of FIG. 7, and FIG. It is a perspective view showing another embodiment of the.

12 and 13, the rotary thrust bearing 133 is provided in the form of a protrusion in the form of a triangular ring with a cross-sectional area of which the diameter is reduced from one side to the other at the center of the mutually contacting surfaces when stacked in at least one layer. A holding protrusion 133b provided to minimize a contact area while maintaining a distance may be further included.

That is, each of the retaining protrusions 133b is provided on the mutually contacting surfaces of the at least one or more rotating thrust bearings 133, so that the contact area of the rotating thrust bearing 133 as the holding protrusions 133b comes into contact with each other is measured. By reducing the size, the sliding efficiency can be improved.

The rotational spacing body 134 is disposed between the plurality of rotational thrust bearings 133 , and has a through-hole type rotational maintenance insertion hole 134a inserted into the inner connection body 111 in the center, and the rotational maintenance insertion hole It is provided to have a rotation holding and bending portion 134b that reduces the contact area by making line contact between the plurality of rotation thrust bearings 133 as it has a wave-shaped curve along the outer periphery around the 134a.

Another embodiment of the rotation gap maintaining body 134, which is a main component of the anti-twist connection device 100 for a fire hose according to the third embodiment of the present invention, will be described as follows.

The rotational spacing maintaining body 134 is disposed between the plurality of rotational thrust bearings 133 , and has a through-hole type rotational maintenance insertion hole 134a inserted into the inner connecting body 111 in the center, and the plurality of rotational thrust bearings 134 . It is provided in a ring shape that is provided with a material different from the material that is slidably rotated between the bearings 133 to prevent mutual compression.

That is, the rotation gap maintaining body 134 is provided with an iron material to prevent the sliding thrust bearing 133 from being made of a synthetic resin from being attached to each other by compression, so that sliding efficiency can be improved.

14 is a cross-sectional view showing a twist preventing connection device for a fire hose according to a fourth embodiment of the present invention, and FIG. 15 is a partially omitted cross-sectional view showing a main part of the twist preventing coupling device for a fire hose of FIG. 14 .

14 and 15 , the anti-twist connection device 100 for a fire hose according to the fourth embodiment of the present invention includes an internal connection part 110 , an external connection part 120 , and a rotating part 130 .

Here, the rotating part 130 is the same as the configuration of the third embodiment of the present invention shown in FIGS. 7 to 9 , and the internal connection part 110 and the external connection part 120 also have a similar configuration, but there is a difference in the sealing structure. As there is, the internal connection part 110 and the external connection part 120 will be described as follows.

Such an internal connection part 110 includes an internal connection body 111 , and an internal bearing support 117 .

The internal connection body 111 is disposed at a position where each hose installed in the connection device is fixed, is provided in the form of a tube extending in the connection direction, and is inserted and fixed in the hose connection space 112 in the direction of each hose. ), and has an inner connecting protrusion 113 in the form of a protrusion that protrudes so that the hose is fixed to the inner surface of the hose connecting space 112, and provides rotational force while being inserted into the outer connecting part 120 on the outer periphery. It has an internal fastening groove 116 in which the rotating part 130 is installed, and has an internal connection space 115 through which water supplied from a hose passes inside, at least in the direction in which the internal fastening groove 116 is connected. It is provided so as to have an inner sealing groove 114 in which an inner sealing body 119 for blocking water leakage is installed at a position in contact with the external connection part 120 on the inner surface of one or more.

This inner sealing body 119 is disposed inside the inner sealing groove 114, is provided in the form of a ring-shaped sheet, so that the cross-sectional area of the English letter "U" is turned upside down by 90 degrees and the open part is located in the connection direction and contracted As this is possible, it is provided to maintain the sealing during rotation.

The inner bearing support 117 is provided in the form of a tube extending in the mutually connected direction of the inner connecting body 111, and the inner surface of the rotating unit 130 providing rotational force between the outer connecting units 120 is internally connected. It is supported on the outer surface of the sieve 111 and is provided to have a larger diameter than the inner connection body 111 in order to protrude outwardly so that the surface in the direction to be connected is supported in contact.

The above-described external connection part 120 includes an external connection body 121 and an external fastening body 123 .

The external connector 121 is disposed on the outer periphery of the internal connector 111, respectively, is provided with an enlarged diameter so that the internal connector 111 is inserted therein, and an internal fastening groove 115 on the inner surface. ) has an external connection space 121a formed with an external fastening groove 121b in which a rotating part 130 that provides rotational force while mutually binding with the internal connection body 111 is installed at a position corresponding to the external connection space 121a The diameter is reduced to provide a step on which the hose direction surface of the rotating unit 130 is supported in the connecting direction of the rotating unit 130 and the internal bearing support 117 are inserted, and the hose direction surface of the rotating unit 130 is in contact with the support. It has an external bearing space (121d) that becomes an external bearing space (121d), and provided to have a discharge flow path (121e) in the form of a flow path provided so that water leaked from the inside is discharged to the outside from the position where the internal connection body (111) is inserted therein. do.

The external fastening body 123 has external fastening bodies 123a that are respectively protruded at positions where they are connected to each other of the external connectors 121 and are fastened in a state in which they are inserted into each other, and are mutually fastened when the hoses are connected, and the hoses are separated. It is provided so that the fastening is released at the time.

FIG. 16 is a cross-sectional view showing a twist preventing connection device for a fire hose according to a fifth embodiment of the present invention, and FIG. 17 is a partially omitted cross-sectional view showing a main part of the twist preventing coupling device for a fire hose of FIG. 16 .

16 and 17 , the anti-twist connection device 100 for a fire hose according to the fifth embodiment of the present invention includes an internal connection part 110 , an external connection part 120 , and a rotating part 130 .

The internal connection part 110 includes an internal connection body 111 , an internal bearing support 117 , and a sealing extension 118 .

The internal connection body 111 is disposed at a position where each hose installed in the connection device is fixed, is provided in the form of a tube extending in the connection direction, and a hose connection space 112 that is inserted and fixed in the direction of the hose inside. It has an inner connection protrusion 113 in the form of a protrusion that protrudes so that the hose is fixed to the inner surface of the hose connection space 112, and provides rotational force while being inserted into the outer connection part 120 on the outer periphery while binding to each other. It has an internal fastening groove 116 in which the rotating part 130 is installed, and is provided to have an internal connection space 115 through which water supplied from a hose passes.

The inner bearing support 117 is provided in the form of a tube extending in the mutually connected direction of the inner connecting body 111, and the inner surface of the rotating unit 130 providing rotational force between the outer connecting units 120 is the inner connecting body. It is supported on the outer surface of the 111 and is provided to enlarge a diameter than the inner connection body 111 in order to protrude outward so as to support contact in the direction in which it is connected.

The sealing extension 117 is provided in the form of a tube extending in the mutually connected direction of the inner bearing support 117, and has a diameter smaller than that of the inner bearing support 117 so as to be in contact with the portion sealed between the outer connection parts 120. It is provided in the form of one tube.

The external connection part 120 includes an external connection body 121, an external fastening body 123, an external blocking cover 124, a fixed blocking cover 125, a bearing fixing inserting body 127, and a bearing fixing body 129. include

The external connector 121 is disposed on the outer periphery of the internal connector 111, is provided with an enlarged diameter so that the internal connector 111 is inserted therein, and the diameter is reduced in the hose direction from the center. It has an outer bearing space (121d) whose diameter is enlarged to cover a part of the outer perimeter while forming a step in which the connecting direction of the inner bearing support 117 is in contact with each hose direction from the center to the inner surface, and from the center to each other External sealing groove ( 121c), and is provided to have a discharge flow path 121e in the form of a flow path provided to discharge water leaking from the inside to the outside at the position where the internal connection body 111 is inserted therein.

The outer sealing body 122 is disposed inside the outer sealing groove 121c and is provided in the form of a ring-shaped sheet so that the cross-sectional area of the English letter "U" is turned upside down by 90 degrees and the open portion is located in the mutually connected direction. As shrinkage is possible, it is provided to maintain sealing during rotation.

The external fastening body 123 has external fastening bodies 123a that are respectively protruded at positions where they are connected to each other of the external connectors 121 and are fastened in a state in which they are inserted into each other, and are mutually fastened when the hoses are connected, and the hoses are separated. It is provided so that the fastening is released at the time.

The fixed blocking cover 125 extends in the hose direction of the external connector 121, and is provided in the form of a tube extending in the hose direction while surrounding the hose direction of the rotating part 130, and is a screw-type cover fastener on the inside. (126) is provided.

The bearing fixed insert body 127 is inserted and disposed inside the fixed cut-off cover 125, and is inserted into the fixed block cover 125 so as to be supported in contact with the hose direction of the rotating part 130, and the cover fastening body 126 and It is provided to have an insert fastening body 128 on the outer periphery to be fastened.

The bearing fixing body 129 is arranged to be caught in the hose direction of the fixed blocking cover 125 in the hose direction of the bearing fixing insertion body 127, and the diameter is enlarged to the hose part of the bearing fixing insertion body 127 and fixed It is provided to seal while being caught in the hose direction of the blocking cover 125 .

The outer blocking cover 124 is disposed in the connection direction of the hose so as to surround the outer circumference of the pair of the bearing fixture 129 and the inner connector 111, and the bearing fixture 129 and the inner connector 111. It may be provided to block the inflow of foreign substances from the outside by expanding in the outer circumferential direction in a state of being inserted at a position in contact with each of the hoses.

The rotating part 130 includes a rotating thrust bearing 133 and a rotating gap maintaining body 134 .

The rotational thrust bearing 133 is supported in the bearing fixing space 127a of the bearing fixing body 129 in the direction of each hose, and is supported by the internal bearing support 117 in the mutually connected direction, and the thrust direction is the axial direction. It is provided so as to be rotated by sliding in a state of being in contact with each other, and is provided by stacking at least one or more of a material that is slidably rotated in a ring shape.

Another embodiment of the rotational thrust bearing 133, which is a main component of the anti-twist connection device 100 for a fire hose according to the fifth embodiment of the present invention, will be described as follows.

The rotary thrust bearing 133 may be provided to have a bearing inclined portion 133a that protrudes so as to be inclined at the center in a direction to be interconnected at the outer periphery and has a cross-sectional area in a ring-shaped dish shape.

That is, the rotary thrust bearing 133 is provided in the form of a plate so that one side is in contact with the outer periphery, and the center portion of the other side is in line contact with each other, and as the contact area is reduced, at least one or more overlapping rotary thrust bearings ( 133) is prevented from being pressed against each other, and sliding efficiency can be improved.

Another embodiment of the rotating thrust bearing 133, which is a main component of the anti-twist connection device 100 for a fire hose according to the fifth embodiment of the present invention, will be described as follows.

At least one rotational thrust bearing 133 is provided in the form of a triangular ring-shaped protrusion with a cross-sectional area of which the diameter is reduced from one side to the other at the center of the mutually contacted surfaces when stacked, so as to minimize the contact area while maintaining the spacing during contact. The provided holding protrusion 133b may be further included.

That is, each of the retaining protrusions 133b is provided on the mutually contacting surfaces of the at least one or more rotating thrust bearings 133, so that the contact area of the rotating thrust bearing 133 as the holding protrusions 133b comes into contact with each other is measured. By reducing the size, the sliding efficiency can be improved.

The rotational spacing body 134 is disposed between the plurality of rotational thrust bearings 133 , and has a through-hole type rotational maintenance insertion hole 134a inserted into the inner connection body 111 at the center, and the rotational maintenance insertion hole It is provided to have a rotation holding and bending portion 134b that reduces the contact area by making line contact between the plurality of rotation thrust bearings 133 as it has a wave-shaped curve along the outer periphery around the 134a.

Another embodiment of the rotation gap maintaining body 134, which is the main component of the anti-twist connection device 100 for a fire hose according to the fifth embodiment of the present invention, will be described as follows.

The rotational spacing body 134 is disposed between the plurality of rotational thrust bearings 133 , and has a through-hole type rotational maintenance insertion hole 134a inserted into the inner connection body 111 at the center, and the plurality of rotational thrust bearings 134 . It is provided in a ring shape that is provided with a material different from the material that is slidably rotated between the bearings 133 to prevent mutual compression.

That is, the rotation gap maintaining body 134 is provided with an iron material to prevent the sliding thrust bearing 133 from being made of a synthetic resin from being attached to each other by compression, so that sliding efficiency can be improved.

18 is a cross-sectional view showing a twist preventing connection device for a fire hose according to a sixth embodiment of the present invention, and FIG. 19 is a partially omitted cross-sectional view showing a main part of the twist preventing coupling device for a fire hose of FIG. 18 .

18 and 19 , the anti-twist connection device 100 for a fire hose according to the sixth embodiment of the present invention includes an internal connection part 110 , an external connection part 120 , and a rotating part 130 .

Here, the rotating part 130 is the same as the configuration of the fifth embodiment of the present invention shown in FIGS. 16 and 17 , and the internal connection part 110 and the external connection part 120 also have a similar configuration, but there is a difference in the sealing structure. As there is, the internal connection part 110 and the external connection part 120 will be described as follows.

The internal connection part 110 includes an internal connection body 111 , an internal bearing support 117 , and a sealing extension 118 .

The internal connection body 111 is disposed at a position where each hose installed in the connection device is fixed, is provided in the form of a tube extending in the connection direction, and a hose connection space 112 that is inserted and fixed in the direction of the hose inside. It has an inner connection protrusion 113 in the form of a protrusion that protrudes so that the hose is fixed to the inner surface of the hose connection space 112, and provides rotational force while being inserted into the outer connection part 120 on the outer periphery while binding to each other. It has an internal fastening groove 116 in which the rotating part 130 is installed, and is provided to have an internal connection space 115 through which water supplied from a hose passes.

The inner bearing support 117 is provided in the form of a tube extending in the mutually connected direction of the inner connecting body 111, and the inner surface of the rotating unit 130 providing rotational force between the outer connecting units 120 is the inner connecting body. It is supported on the outer surface of the 111 and is provided to enlarge a diameter than the inner connection body 111 in order to protrude outward so as to support contact in the direction in which it is connected.

The sealing extension 117 is provided in the form of a tube extending in the mutually connected direction of the inner bearing support 117, and is a tube shape with a reduced diameter than the inner bearing support 117, so that the outer connection part 120 is inserted into contact. An inner sealing groove 114 provided with an internal sealing body 119 for blocking water leakage at a position in contact with the external connection part 120 and at least one or more at a position in contact with the internal connection body 111 on the inner surface. is provided to have

Here, the inner sealing body 119 is disposed inside the inner sealing groove 114 and is provided in the form of a ring-shaped sheet so that the cross-sectional area of the English letter "U" is turned upside down by 90 degrees and the open part is located and contracted. As this is possible, it is provided to maintain the sealing during rotation.

The above-described external connection unit 120 includes an external connection body 121 , an external fastening body 123 , a fixed blocking cover 125 , a fixed bearing inserting body 127 , and a bearing fixed body 129 .

The external connector 121 is disposed on the outer periphery of the internal connector 111, is provided with an enlarged diameter so that the internal connector is inserted therein, and the diameter is reduced in the hose direction from the center to the inner surface. has an external bearing space (121d) whose diameter is enlarged so as to surround a part of the outer periphery while forming a step in which the connecting direction of the inner bearing support 117 is in contact with each hose direction, and the inner connecting body 111 ) is provided to have a discharge flow path 121e in the form of a flow path provided so that the water leaked inside is discharged to the outside in the outward direction at the insertion position.

The external fastening body 123 has external fastening bodies 123a that are respectively protruded at positions where they are connected to each other of the external connectors 121 and are fastened in a state in which they are inserted into each other, and are mutually fastened when the hoses are connected, and the hoses are separated. An external fastening body that is released when fastening;

The fixed blocking cover 125 extends in the hose direction of the external connector 121, and is provided in the form of a tube extending in the hose direction while surrounding the hose direction of the rotating part 130, and is a screw-type cover fastener on the inside. (126) is provided.

The bearing fixed insert body 127 is inserted and disposed inside the fixed cut-off cover 125, and is inserted into the fixed block cover so as to be supported in contact with the hose direction of the rotating part 130 and fastened with the cover fastening body 126. It is provided to have an insert-fastening body (128) around it.

The bearing fixing body 129 is arranged to be caught in the hose direction of the fixed blocking cover 125 in the hose direction of the bearing fixing insertion body 127, and the diameter is enlarged to the hose part of the bearing fixing insertion body 127 and fixed It is provided to seal while being caught in the hose direction of the blocking cover.

The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains.

Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments.

The protection scope of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

<Explanation of symbols for main parts of the drawing>
100: connection device 110: internal connection part
111: internal connection body 112: hose connection space
113: inner connection protrusion 114: inner sealing groove
115: internal connection space 116: internal fastening groove
117: internal bearing support 118: sealing extension
119: inner sealing body 120: external connection part
121: external connection body 121a: external connection space
121b: external fastening groove 121c: external sealing groove
121d: external bearing space 121e: discharge flow path
122: external sealing body 123: external fastening body
123a: external fastener 124: external blocking cover
125: fixed blocking cover 126: cover fastening body
127: bearing fixed insert body 128: insert fastening body
129: bearing fixture 130: rotating part
131: binding box thrust bearing 132: binding spacing maintaining body
132a: strap retaining insertion hole 132b: strap retaining bent part
133: rotary thrust bearing 133a: bearing inclined part
133b: retaining projection 134: rotation interval maintenance body
134a: rotation holding insertion hole 134b: rotation holding and bending part

Claims (51)

In the connection device which is installed on at least one or both sides to enable rotation at the position where the fire hose is connected to each other and rotates to prevent kinking,
It has a hose connection space that is inserted and fixed in the direction of the hose at a position where the hose where the connection device is installed is fixed, has an inner connection protrusion in the form of a protrusion on the inner surface of the hose connection space, and has a groove-shaped interior on the outer periphery An inner connecting body having a binding groove and having an inner connecting space through which water passes, an inner bearing support whose diameter is enlarged than that of the inner connecting body in a direction in which the inner connecting bodies are interconnected, and the inner bearing support; an internal connection part including a sealing extension provided in the form of a tube reduced in the direction in which it is connected;
An outer bearing which is provided with a diameter into which the inner connector is inserted on the outer periphery of the inner connector and is enlarged to surround a part of the outer direction while forming a step in the center in which the direction connected to the inner bearing support in the direction of the hose is formed Fastening of an external connector having a space, an external sealing groove in which an external sealing body is installed in the center, and a discharge passage through which water is discharged to the outside in the insertion direction of the internal connector, and the hose of the external connector and an external fastening body to be separated, a fixed blocking cover having a screw-type cover fastening body on an inner surface in a tubular shape extending in the hose direction of the external connecting body, and inserted and disposed inside the fixed blocking cover, the rotating part A bearing fixed insert body having an insert fastening body on the outer periphery to be inserted into the fixed cut-off cover so as to be in contact with and supported in the hose direction of the cover fastening body, and the fixed cut-off cover in the hose direction of the bearing fixed insert body. an external connection part including a bearing fixture that seals when caught in the hose direction; and
A rotating part disposed between the internal connection part and the external connection part and installed in the internal fastening groove in a state of being inserted into the external connection part in the thrust direction, which is an axial direction, and installed to rotate while binding.
Kink-resistant connectors for fire hoses.
delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete The method of claim 1,
The outer sealing body is disposed inside the outer sealing groove and is provided in the form of a ring-shaped sheet so that the cross-sectional area of the English letter "U" is turned upside down by 90 degrees and the open part is located in the connecting direction, so that when it is rotated, it can be contracted. to keep sealing
Kink-resistant connectors for fire hoses.
The method of claim 1,
It is disposed in the connection direction of the hose so as to surround the outer periphery of the bearing fixture and the inner connection body in contact in the hose direction, and the bearing fixture and the inner connection body are in contact with each other in the hose direction. In the inserted state, it expands in the outer circumferential direction to block the inflow of foreign substances from the outside; further comprising a
Kink-resistant connectors for fire hoses.
The method of claim 1,
The rotating part,
The hose direction is supported by the bearing fixture, the interconnection direction is supported on the inner bearing support, and is provided to rotate by sliding while in contact in the thrust direction, which is the axial direction, and is slidably rotated in a ring shape. Rotating thrust bearings stacked with at least one material and provided with
Kink-resistant connectors for fire hoses.
39. The method of claim 38,
The rotary thrust bearing has a bearing inclined portion that protrudes so as to be inclined at the center in a direction connected from the outer periphery and inclined so that the cross-sectional area becomes a ring-shaped plate shape.
Kink-resistant connectors for fire hoses.
39. The method of claim 38,
The rotary thrust bearing is provided in the form of a protrusion in the form of a triangular ring with a cross-sectional area of which the diameter is reduced from one side to the other at the center of the mutually contacted surfaces when stacked with at least one, so as to minimize the contact area while maintaining the spacing during contact retaining projection; further comprising
Kink-resistant connectors for fire hoses.
39. The method of claim 38,
It is disposed between the rotational thrust bearings and has a through-hole type rotational holding insertion hole inserted into the inner connection body at the center, and has a wave-shaped curve along the outer periphery around the rotational holding insertion hole. Further comprising a; rotational spacing maintaining body having a rotational holding and bending portion for reducing the contact area by linear contact between the rotational thrust bearings
Kink-resistant connectors for fire hoses.
39. The method of claim 38,
It is disposed between the rotary thrust bearings and has a through-hole type rotary holding insertion hole inserted into the inner connection body at the center, and is provided with a material different from the material slidably rotated between the rotary thrust bearings to prevent mutual compression. Further comprising a; ring-shaped rotational spacer to be
Kink-resistant connectors for fire hoses.
In the connection device which is installed on at least one or both sides to enable rotation at the position where the fire hose is connected to each other and rotates to prevent kinking,
It has a hose connection space that is inserted and fixed in the direction of the hose at a position where the hose where the connection device is installed is fixed, has an inner connection protrusion in the form of a protrusion on the inner surface of the hose connection space, and has a groove-shaped interior on the outer periphery An inner connecting body having a binding groove and having an inner connecting space through which water passes, an inner bearing support whose diameter is enlarged than that of the inner connecting body in a direction in which the inner connecting bodies are interconnected, and the inner bearing support; A sealing having an inner sealing groove in which at least one inner sealing body for blocking water leakage is installed at a position in contact with the external connection part provided in the form of a tube reduced in the connecting direction of at least one inner surface at a position in contact with the internal connection body an internal connection unit including an extension body;
An outer bearing which is provided with a diameter into which the inner connector is inserted on the outer periphery of the inner connector and is enlarged to surround a part of the outer direction while forming a step in the center in which the direction connected to the inner bearing support in the direction of the hose is formed an external connector having a space therein and having a discharge passage through which water is discharged to the outside in the insertion direction of the internal connector; an external fastening body for fastening and separating the hose of the external connector; A fixed blocking cover having a screw-type cover fastening body on the inner surface in the form of a tube extending in the hose direction, the fixed blocking cover is inserted and disposed inside the fixed blocking cover, and is supported in contact with the hose direction of the rotating part. A bearing fixed insert body having an insert fastening body on its outer periphery so as to be inserted and fastened with the cover fastening body, and a bearing fixture that seals when caught in the hose direction of the fixed cut-off cover in the hose direction of the bearing fixed insert body an external connection unit; and
A rotating part disposed between the internal connection part and the external connection part and installed in the internal fastening groove in a state of being inserted into the external connection part in the thrust direction, which is an axial direction, and installed to rotate while binding.
Kink-resistant connectors for fire hoses.
44. The method of claim 43,
The inner sealing body is disposed inside the inner sealing groove, and is provided in the form of a ring-shaped sheet so that the cross-sectional area of the English letter "U" is turned upside down by 90 degrees and the open part is located in the connecting direction, so that when it is rotated, it can be contracted. to keep sealing
Kink-resistant connectors for fire hoses.
delete 44. The method of claim 43,
It is disposed in the connection direction of the hose so as to surround the outer periphery of the bearing fixture and the inner connection body in contact in the hose direction, and the bearing fixture and the inner connection body are in contact with each other in the hose direction. In the inserted state, it expands in the outer circumferential direction to block the inflow of foreign substances from the outside; further comprising a
Kink-resistant connectors for fire hoses.
44. The method of claim 43,
The rotating part,
The hose direction is supported by the bearing fixture, the interconnection direction is supported on the inner bearing support, and is provided to rotate by sliding while in contact in the thrust direction, which is the axial direction, and is slidably rotated in a ring shape. A rotary thrust bearing provided with at least one material; provided with
Kink-resistant connectors for fire hoses.
48. The method of claim 47,
The rotary thrust bearing has a bearing inclined portion that protrudes so as to be inclined at the center in a direction connected from the outer periphery and inclined so that the cross-sectional area becomes a ring-shaped plate shape.
Kink-resistant connectors for fire hoses.
48. The method of claim 47,
The rotary thrust bearing is provided in the form of a protrusion in the form of a triangular ring with a cross-sectional area of which the diameter is reduced from one side to the other at the center of the mutually contacted surfaces when stacked with at least one, so as to minimize the contact area while maintaining the spacing during contact retaining projection; further comprising
Kink-resistant connectors for fire hoses.
48. The method of claim 47,
It is disposed between the rotational thrust bearings and has a through-hole type rotational holding insertion hole inserted into the inner connection body at the center, and has a wave-shaped curve along the outer periphery around the rotational holding insertion hole. Further comprising a; rotational spacing maintaining body having a rotational holding and bending portion for reducing the contact area by linear contact between the rotational thrust bearings
Kink-resistant connectors for fire hoses.
48. The method of claim 47,
It is disposed between the rotary thrust bearings and has a through-hole type rotary holding insertion hole inserted into the inner connection body in the center, and is provided with a material different from the material that slides and rotates between the rotary thrust bearings to prevent mutual compression. Further comprising a; ring-shaped rotational spacer to be
Kink-resistant connectors for fire hoses.

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