WO2007132996A1

WO2007132996A1 - A connector that regulates direction of an object installed therein

Info

Publication number: WO2007132996A1
Application number: PCT/KR2007/002225
Authority: WO
Inventors: Kang-Hoon Park
Original assignee: Kang-Hoon Park
Priority date: 2006-05-11
Filing date: 2007-05-07
Publication date: 2007-11-22
Also published as: KR100721502B1

Abstract

The present invention relates to a connector having a direction control function for a to-be-installed object, which enables a user to very easily changeably control the orientational direction of a to-be-installed object, such as enabling the user to control the direction of an opening and closing lever of an opening and closing valve for opening and closing a fluid channel by rotating the opening and closing lever in such a manner as to be oriented toward the position where the user can conveniently manipulate the opening and closing lever, enabling the user to control the direction of a pressure gauge or the like in such a manner as to be oriented toward the position which the user desires to manipulate the pressure gauge or the like, and enabling the user to very easily controllably set the direction of a water tap, etc.

Description

A CONNECTOR THAT REGULATES DIRECTION OF AN OBJECT INSTALLED THEREIN

Technical Field

[1] The present invention relates to a connector having a function of controlling the direction of an object to be installed, and more particularly to, such a connector having a direction control function for a to-be-installed object, which enables a user to very easily changeably control the orientational direction of a to-be-installed object, such as enabling the user to control the direction of an opening and closing lever of an opening and closing valve for opening and closing a fluid channel by rotating the opening and closing lever in such a manner as to be oriented toward the position where the user can conveniently manipulate the opening and closing lever, enabling the user to control the direction of a pressure gauge or the like in such a manner as to be oriented toward the position which the user desires to manipulate the pressure gauge or the like, and enabling the user to very easily controllably set the direction of a water tap, etc. Background Art

[2] In general, fluid such as oil, gas, water including cool and hot water, etc., flows through a pipe, and a pipe structure is diversely designed depending on a use method of the fluid.

[3] For example, a pipe is cut into a given length to produce several pipe pieces which are in turn interconnected in a screw-engagement manner by means of a separate connector to allow fluid to flow therethrough, an opening and closing valve is screw- engaged with a connector so as to allow the flow of fluid to be manually interrupted or permitted between adjacent pipes, or a connector is screw-engaged with a distal end of a pipe and then a water tap in place of using a single pipe depending on the environment of a construction place

[4] In addition, a pressure gauge for measuring the flow state of fluid may be installed at the connector by screw-engagement.

[5] As described above, the connectors are diversely applied to the plumbing field in such a manner as to be interconnected in a screw-engagement manner. However, such conventional connectors have disadvantages that it is difficult for a user to assemble a to-be-installed object such as an opening and closing valve or a pressure gauge while controlling the direction of the to-be-installed object to be oriented toward a position where the user can easily manipulate the to-be-installed object. Disclosure of Invention Technical Problem [6] Accordingly, the present invention has been made in an effort to solve the aforementioned problems occurring in the prior art, and it is an object of the present invention to provide a connector having a direction control function for a to- be-installed object, which enables a user to very easily changeably control the ori- entational direction of a to-be-installed object, such as enabling the user to control the direction of an opening and closing lever of an opening and closing valve for opening and closing a fluid channel by rotating the opening and closing lever in such a manner as to be oriented toward the position where the user can conveniently manipulate the opening and closing lever, enabling the user to control the direction of a pressure gauge or the like in such a manner as to be oriented toward the position which the user desires to manipulate the pressure gauge or the like, and enabling the user to very easily controllably set the direction of a water tap, etc. Technical Solution

[7] To accomplish the above object, according to one aspect of the present invention, there is provided a connector having a direction control function for a to-be-installed object, the connector comprising: a connector body including at least two outlets formed therein in such a manner as to be branched off from the inside thereof, and a fluid passageway formed therein so as to allow the outlets to fluidically communicate with each other to flow fluid therethrough, at least one of the outlets having a retaining stepped portion formed on the inner peripheral surface of an end portion thereof and a threaded portion formed on the outer peripheral surface thereof correspondingly to a position of the retaining stepped portion; a packing ring adapted to be seated on the retaining stepped portion; a clamping nut formed in a cylindrical shape drilled at both ends thereof and having an escape-preventive step formed on the inner peripheral surface thereof by a difference in diameter between a first larger diameter portion and a first smaller diameter portion thereof, the first larger diameter portion having a threaded portion formed on the inner peripheral surface thereof so as to be screw- engaged with the threaded portion of the outlet; a to-be-installed object fastening nut formed in a cylindrical shape drilled at both ends thereof, and having an retaining step formed on the outer peripheral surface thereof by a difference in diameter between a second larger diameter portion and a second smaller portion thereof so as to prevent the fastening nut from escaping from the escape-preventive step toward the first smaller diameter after being inserted into the clamping nut toward the first larger diameter portion of the clamping nut, so that as the threaded portion of the clamping nut is screwed-engaged with the threaded portion of the outlet, the escape-preventive step comes into close contact with the retaining step to cause a part of the second larger diameter portion to fit into the retaining step so as to be in close contact with the packing ring, the fastening nut having a threaded portion formed on the inner peripheral surface thereof so as to be screw-engaged with a male screw portion of the to-be-installed object; and a direction control means for controlling the direction of the to-be-installed object screw-engaged with the to-be-installed object fastening nut at the first and second smaller diameter portions. [8] According to another aspect of the present invention, there is also provided a connector having a connector having a direction control function for a to-be-installed object, the connector comprising: a connector body including at least two outlets formed therein in such a manner as to be branched off from the inside thereof, and a fluid passageway formed therein so as to allow the outlets to fluidically communicate with each other to flow fluid therethrough, at least one of the outlets having a retaining stepped portion formed on the inner peripheral surface of an end portion thereof and a threaded portion formed on the outer peripheral surface thereof correspondingly to a position of the retaining stepped portion; a packing ring adapted to be seated on the retaining stepped portion; a clamping nut formed in a cylindrical shape drilled at both ends thereof and having an escape-preventive step formed on the inner peripheral surface thereof by a difference in diameter between a first larger diameter portion and a first smaller diameter portion thereof, the first larger diameter portion having a threaded portion formed on the inner peripheral surface thereof so as to be screw- engaged with the threaded portion of the outlet; a to-be-installed object fastening nut formed in a cylindrical shape drilled at both ends thereof, and having an retaining step formed on the outer peripheral surface thereof by a difference in diameter between a second larger diameter portion and a second smaller portion thereof so as to prevent the fastening nut from escaping from the escape-preventive step toward the first smaller diameter after being inserted into the clamping nut toward the first larger diameter portion of the clamping nut, so that as the threaded portion of the clamping nut is screwed-engaged with the threaded portion of the outlet, the escape-preventive step comes into close contact with the retaining step to cause a part of the second larger diameter portion to fit into the retaining step so as to be in close contact with the packing ring, the fastening nut including a to-be-installed object engagement section having a threaded portion formed on the outer peripheral surface thereof so as to be screw-engaged with a female screw portion of the to-be-installed object, the to- be-installed object engagement section extending from the second smaller diameter portion and protrude outwardly from the first smaller diameter portion; and a direction control means for controlling the direction of the to-be-installed object screw-engaged with the to-be-installed object fastening nut at the first and second smaller diameter portions. Brief Description of the Drawings

[9] FIG. 1 is a fragmentary perspective view illustrating a connector construction in an assembled state according to the present invention;

[10] FIG. 2 is a fragmentary exploded perspective view illustrating a connector construction in a state where a to-be-installed object fastening nut and a clamping nut are disconnected from each other before mounting a packing ring according to a first embodiment of the present invention;

[11] FIG. 3 is a fragmentary exploded perspective view illustrating a connector construction in a state where a to-be-installed object fastening nut and a clamping nut are disconnected from each other after mounting a packing ring according to a first embodiment of the present invention;

[12] FIG. 4 is a fragmentary exploded perspective view illustrating a connector construction in a state where a to-be-installed object fastening nut and a clamping nut are disconnected from each other before mounting a packing ring according to a second embodiment of the present invention;

[13] FIG. 5 is a fragmentary exploded perspective view illustrating a connector construction in a state where a to-be-installed object fastening nut and a clamping nut are disconnected from each other after mounting a packing ring according to a second embodiment of the present invention;

[14] FIG. 6 is an enlarged perspective view illustrating the outward appearance of the clamping nut according to the present invention;

[15] FIG. 7 is an enlarged perspective view illustrating a to-be-installed object fastening nut according to a second embodiment of the present invention;

[16] FIG. 8 is an enlarged perspective view illustrating a to-be-installed object fastening nut when viewed from the top according to a first embodiment of the present invention;

[17] FIG. 9 is an enlarged perspective view illustrating a to-be-installed object fastening nut when viewed from the side according to a first embodiment of the present invention;

[18] FIG. 10 is a fragmentary cross-sectional view illustrating a connection to which the to-be-installed object fastening nuts according to first and second embodiments of the present invention are applied; and

[19] FIG. 11 is a schematic view illustrating the operational state of a connection according to the present invention. Mode for the Invention

[20] Hereinafter, the preferred embodiment of a connector having a direction control function for a to-be-installed object according to the present invention will be described in detail with reference to the appended drawings.

[21] FIG. 1 is a fragmentary perspective view illustrating a connector construction in an assembled state according to the present invention, FIG. 2 is a fragmentary exploded perspective view illustrating a connector construction in a state where a to-be-installed object fastening nut and a clamping nut are disconnected from each other before mounting a packing ring according to a first embodiment of the present invention, FIG.

3 is a fragmentary exploded perspective view illustrating a connector construction in a state where a to-be-installed object fastening nut and a clamping nut are disconnected from each other after mounting a packing ring according to a first embodiment of the present invention, FIG. 4 is a fragmentary exploded perspective view illustrating a connector construction in a state where a to-be-installed object fastening nut and a clamping nut are disconnected from each other before mounting a packing ring according to a second embodiment of the present invention, FIG. 5 is a fragmentary exploded perspective view illustrating a connector construction in a state where a to- be-installed object fastening nut and a clamping nut are disconnected from each other after mounting a packing ring according to a second embodiment of the present invention, FIG. 6 is an enlarged perspective view illustrating the outward appearance of the clamping nut according to the present invention, FIG. 7 is an enlarged perspective view illustrating a to-be-installed object fastening nut according to a second embodiment of the present invention, FIG. 8 is an enlarged perspective view illustrating a to-be-installed object fastening nut when viewed from the top according to a first embodiment of the present invention, FIG. 9 is an enlarged perspective view illustrating a to-be-installed object fastening nut when viewed from the side according to a first embodiment of the present invention, FIG. 10 is a fragmentary cross-sectional view illustrating a connection to which the to-be-installed object fastening nuts according to first and second embodiments of the present invention are applied, and FIG. 11 is a schematic view illustrating the operational state of a connection according to the present invention.

[22] <First Embodiment

[23] A connector according to a first embodiment of the present invention includes a connector body 10, a packing ring 20, a clamping nut 30, a to-be-installed object fastening nut 40 and a direction control means 70.

[24] First, the connector body 10 includes at least two outlets 1 formed therein in such a manner as to be branched off from the inside thereof, a fluid passageway 2 formed therein so as to allow the outlets 1 to fluidically communicate with each other to flow fluid therethrough, at least one of the outlets 1 having a retaining stepped portion 3 formed on the inner peripheral surface of an end portion thereof and a threaded portion

4 formed on the outer peripheral surface thereof correspondingly to a position of the retaining stepped portion 3.

[25] In this case, the outlet 1 serves to allow for the inflow or outflow of fluid to or from the connector body herethrough.

[26] The packing ring 20 is seated on the retaining stepped portion 3.

[27] Next, the clamping nut 30 is formed in a cylindrical shape drilled at both ends thereof, and has an escape-preventive step 31 formed on the inner peripheral surface thereof by a difference in diameter between a first larger diameter portion 31a and a first smaller diameter portion 31b thereof, the first larger diameter portion 31a having a threaded portion 32 formed on the inner peripheral surface thereof so as to be screw- engaged with the threaded portion 4 of the outlet 1.

[28] The to-be-installed object fastening nut 40 is formed in a cylindrical shape drilled at both ends thereof, and has an retaining step 41 formed on the outer peripheral surface thereof by a difference in diameter between a second larger diameter portion 41a and a second smaller portion 41b thereof so as to prevent the fastening nut 40 from escaping from the escape-preventive step 31 toward the first smaller diameter 31b after being inserted into the clamping nut 30 toward the first larger diameter portion 31a of the clamping nut 30, so that as the threaded portion 32 of the clamping nut 30 is screwed- engaged with the threaded portion 4 of the outlet 1, the escape-preventive step 31 comes into close contact with the retaining step 41 to cause a part of the second larger diameter portion 41a to fit into the retaining step 4 so as to be in close contact with the packing ring, the fastening nut 40 having a threaded portion 42 formed on the inner peripheral surface thereof so as to be screw-engaged with a male screw portion 61 of the to-be-installed object 60.

[29] Here, the to-be-installed object 60 includes all the devices requiring their orientation depending on the installation environment such as a water tap, an opening and closing valve for opening/closing a fluid passageway by turning a manual opening and closing lever, a pressure gauge, etc.

[30] Lastly, the direction control means 70 for controlling the direction of the to- be-installed object 60 screw-engaged with the to-be-installed object fastening nut 40 at the first and second smaller diameter portions 31b and 41b.

[31] The direction control means 70 includes: a plurality of protruding pieces 71 extending outwardly from a distal end of the first smaller diameter portion 31b of the clamping nut 30; at least one or more lugs 72 formed inwardly from the inner surfaces of each the protruding pieces toward the central direction of the clamping nut 30, the lugs being formed in a circumferential direction of the clamping nut at uniform intervals; a plurality of concave depressions 73 and convex prominences 74 alternately arranged circumferentially on the outer peripheral surface of the second smaller diameter portion 41b of the fastening nut 40 at uniform intervals, the concave de- pressions 73 being adapted to receive the lugs 72 therein and each of the convex prominences 74 having windward and leeward faces 74a with a gentle angle so as to cause the lugs to move therealong to be received in a neighboring concave depression to thereby allow the fastening nut 40 to be turned within the clamping nut 30 when the to-be-installed object is turned in a screw-engagement direction.

[32] Meanwhile, the protruding pieces 71 are preferably divisionally formed in plural numbers so that the lugs 71 are resiliently bent outwardly in an extend that the lugs 71 can smoothly advance beyond the convex prominences 74 at the time of turning the fastening nut 49.

[33] That is, if the protruding pieces 71 are integrally formed into a single unit, but not formed divisionally, the lugs 71 are not bent outwardly and hence cannot advance beyond the convex prominences 74.

[34] Non-explained reference numeral S denotes an operational space where the lugs can be bent when the protruding pieces 71 are applied with an external force from the outside.

[35] Now, a second embodiment of the present invention will be described hereafter in detail.

[36] <Second Embodiment

[37] A connector according to a second embodiment of the present invention includes a connector body 10, a packing ring 20, a clamping nut 30, a to-be-installed object fastening nut 50 and a direction control means 70.

[38] First, the connector body 10 includes at least two outlets 1 formed therein in such a manner as to be branched off from the inside thereof, a fluid passageway 2 formed therein so as to allow the outlets 1 to fluidically communicate with each other to flow fluid therethrough, at least one of the outlets 1 having a retaining stepped portion 3 formed on the inner peripheral surface of an end portion thereof and a threaded portion 4 formed on the outer peripheral surface thereof correspondingly to a position of the retaining stepped portion 3.

[39] In this case, the outlet 1 serves to allow for the inflow or outflow of fluid to or from the connector body herethrough.

[40] The packing ring 20 is seated on the retaining stepped portion 3.

[41] Next, the clamping nut 30 is formed in a cylindrical shape drilled at both ends thereof, and has an escape-preventive step 31 formed on the inner peripheral surface thereof by a difference in diameter between a first larger diameter portion 31a and a first smaller diameter portion 31b thereof, the first larger diameter portion 31a having a threaded portion 32 formed on the inner peripheral surface thereof so as to be screw- engaged with the threaded portion 4 of the outlet 1.

[42] The to-be-installed object fastening nut 50 is formed in a cylindrical shape drilled at both ends thereof, and has an retaining step 41 formed on the outer peripheral surface thereof by a difference in diameter between a second larger diameter portion 41a and a second smaller portion 41b thereof so as to prevent the fastening nut 50 from escaping from the escape-preventive step 31 toward the first smaller diameter 31b after being inserted into the clamping nut 30 toward the first larger diameter portion 31a of the clamping nut 30, so that as the threaded portion 32 of the clamping nut 30 is screwed- engaged with the threaded portion 4 of the outlet 1, the escape-preventive step 31 comes into close contact with the retaining step 41 to cause a part of the second larger diameter portion 41a to fit into the retaining step 4 so as to be in close contact with the packing ring, the fastening nut 50 including a to-be-installed object engagement section 43 having a threaded portion 42 formed on the outer peripheral surface thereof so as to be screw-engaged with a female screw portion 62 of the to-be-installed object 60, the to-be-installed object engagement section extending from the second smaller diameter portion 41b and protrude outwardly from the first smaller diameter portion 31b.

[43] Here, the to-be-installed object 60 includes all the devices requiring their orientation depending on the installation environment such as a water tap, an opening and closing valve for opening/closing a fluid passageway by turning a manual opening and closing lever, a pressure gauge, etc.

[44] Lastly, the direction control means 70 for controlling the direction of the to- be-installed object 60 screw-engaged with the to-be-installed object fastening nut 50 at the first and second smaller diameter portions 31b and 41b.

[45] The direction control means 70 includes: a plurality of protruding pieces 71 extending outwardly from a distal end of the first smaller diameter portion 31b of the clamping nut 30; at least one or more lugs 72 formed inwardly from the inner surfaces of each the protruding pieces toward the central direction of the clamping nut 30, the lugs being formed in a circumferential direction of the clamping nut at uniform intervals; a plurality of concave depressions 73 and convex prominences 74 alternately arranged circumferentially on the outer peripheral surface of the second smaller diameter portion 41b of the fastening nut 50 at uniform intervals, the concave depressions 73 being adapted to receive the lugs 72 therein and each of the convex prominences 74 having windward and leeward faces 74a with a gentle angle so as to cause the lugs to move therealong to be received in a neighboring concave depression to thereby allow the fastening nut 50 to be turned within the clamping nut 30 when the to-be-installed object is turned in a screw-engagement direction.

[46] Meanwhile, the protruding pieces 71 are preferably divisionally formed in plural numbers so that the lugs 71 are resiliently bent outwardly in an extend that the lugs 71 can smoothly advance beyond the convex prominences 74 at the time of turning the fastening nut 49.

[47] That is, if the protruding pieces 71 are integrally formed into a single unit, but not formed divisionally, the lugs 71 are not bent outwardly and hence cannot advance beyond the convex prominences 74.

[48] The operation of the present invention as constructed above will be described hereinafter in detail.

[49] After the screw-engagement between the to-be-installed object 60 and the fastening nut 40 has been completed, when a user continuously turns the to-be-installed object 60 in a screw-engagement direction (screw-locking direction) thereof while applying an external force, the fastening nut 40 fastened to the to-be-installed object 60 will be turned in the direction where the to-be-installed object 60 is turned.

[50] In this case, since the fastening nut 40 rotates in a state where the lugs 72 formed on the protruding pieces 71 of the clamping nut 30 are received in the concave depressions 73 formed on the fastening nut 40, the lugs 72 are again received in neighboring concave depressions 73 along the windward and leeward faces 74a of the convex prominences 74.

[51] By the above process, when the to-be-installed object 60 is turned in a screw- engagement direction, the to-be-installed object fastening nut 40 rotates inside the clamping nut 40 while providing a click sense. As a result a user can control the direction of the to-be-installed object 60 to be oriented toward a position which the user desires.

[52] In the meantime, the connector of the present invention may be constructed such that it is buried in the wall surface of a building to completely cover the outer surface of the clamping nut 30. In this case, the direction of the to-be-installed object 60 can also be controlled to be oriented toward a position which the user desires.

[53] Further, the present invention may comprise an anti-counter rotation surface 74b formed angularly on the outer surface of the convex prominences 74 so that when the to-be-installed object 60 is turned in a counter-screw engagement direction, the anti- counter rotation surface 74b is caught by the lug 72 to cause the to-be-installed object fastening nut 40 and 50 not to be turned together with the to-be-installed object 60. By doing so, when the to-be-installed object 60 screw-engaged with the to-be-installed object fastening nut 40 and 50 is turned in the counter-screw engagement direction, the fastening nut 40 and 50 is not turned together with the to-be-installed object 60 and hence the to-be-installed object 60 can be easily disconnected.

[54] In addition, the lugs 72 of the present invention are preferably formed in a generally right triangular shape in cross-section. The reason for this is that the clamping nut and the fastening nut are smoothly assembled to each other and the smooth operation of the lugs 72 is effected. [55] Moreover, non-explained reference numeral 62 denotes a packing ring for preventing leakage of water when the to-be-installed object 60 is screw-engaged with the to-be-installed object fastening nut. Industrial Applicability

[56] As described above, the connector according to the present invention enables a user to very easily changeably control the orientational direction of a to-be-installed object, such as enabling the user to control the direction of an opening and closing lever of an opening and closing valve for opening and closing a fluid channel by rotating the opening and closing lever in such a manner as to be oriented toward the position where the user can conveniently manipulate the opening and closing lever, enabling the user to control the direction of a pressure gauge or the like in such a manner as to be oriented toward the position which the user desires to manipulate the pressure gauge or the like, and enabling the user to very easily controllably set the direction of a water tap, etc.

[57] Furthermore, the present invention enables the to-be-installed object to be engaged with the to-be-installed object fastening nut so as to have a sealing function preventing leakage of water. In case where a pressure gauge is used as the to-be-installed object, a user can control the direction of the to-be-installed object to be oriented toward a position where the user wants to work any time depending on the situation of the construction site.

Claims

[1] A connector having a direction control function for a to-be-installed object, the connector comprising: a connector body 10 including at least two outlets 1 formed therein in such a manner as to be branched off from the inside thereof, and a fluid passageway 2 formed therein so as to allow the outlets 1 to fluidically communicate with each other to flow fluid therethrough, at least one of the outlets 1 having a retaining stepped portion 3 formed on the inner peripheral surface of an end portion thereof and a threaded portion 4 formed on the outer peripheral surface thereof correspondingly to a position of the retaining stepped portion 3; a packing ring 20 adapted to be seated on the retaining stepped portion 3; a clamping nut 30 formed in a cylindrical shape drilled at both ends thereof and having an escape-preventive step 31 formed on the inner peripheral surface thereof by a difference in diameter between a first larger diameter portion 31a and a first smaller diameter portion 31b thereof, the first larger diameter portion 31a having a threaded portion 32 formed on the inner peripheral surface thereof so as to be screw-engaged with the threaded portion 4 of the outlet 1 ; a to-be-installed object fastening nut 40 formed in a cylindrical shape drilled at both ends thereof, and having an retaining step 41 formed on the outer peripheral surface thereof by a difference in diameter between a second larger diameter portion 41a and a second smaller portion 41b thereof so as to prevent the fastening nut 40 from escaping from the escape-preventive step 31 toward the first smaller diameter 31b after being inserted into the clamping nut 30 toward the first larger diameter portion 31a of the clamping nut 30, so that as the threaded portion 32 of the clamping nut 30 is screwed-engaged with the threaded portion 4 of the outlet 1, the escape-preventive step 31 comes into close contact with the retaining step 41 to cause a part of the second larger diameter portion 41a to fit into the retaining step 4 so as to be in close contact with the packing ring, the fastening nut 40 having a threaded portion 42 formed on the inner peripheral surface thereof so as to be screw-engaged with a male screw portion 61 of the to-be-installed object 60; and a direction control means 70 for controlling the direction of the to-be-installed object 60 screw-engaged with the to-be-installed object fastening nut 40 at the first and second smaller diameter portions 31b and 41b.

[2] A connector having a direction control function for a to-be-installed object, the connector comprising: a connector body 10 including at least two outlets 1 formed therein in such a manner as to be branched off from the inside thereof, and a fluid passageway 2 formed therein so as to allow the outlets 1 to fluidically communicate with each other to flow fluid therethrough, at least one of the outlets 1 having a retaining stepped portion 3 formed on the inner peripheral surface of an end portion thereof and a threaded portion 4 formed on the outer peripheral surface thereof correspondingly to a position of the retaining stepped portion 3; a packing ring 20 adapted to be seated on the retaining stepped portion 3; a clamping nut 30 formed in a cylindrical shape drilled at both ends thereof and having an escape-preventive step 31 formed on the inner peripheral surface thereof by a difference in diameter between a first larger diameter portion 31a and a first smaller diameter portion 31b thereof, the first larger diameter portion 31a having a threaded portion 32 formed on the inner peripheral surface thereof so as to be screw-engaged with the threaded portion 4 of the outlet 1 ; a to-be-installed object fastening nut 40 formed in a cylindrical shape drilled at both ends thereof, and having an retaining step 41 formed on the outer peripheral surface thereof by a difference in diameter between a second larger diameter portion 41a and a second smaller portion 41b thereof so as to prevent the fastening nut 40 from escaping from the escape-preventive step 31 toward the first smaller diameter 31b after being inserted into the clamping nut 30 toward the first larger diameter portion 31a of the clamping nut 30, so that as the threaded portion 32 of the clamping nut 30 is screwed-engaged with the threaded portion 4 of the outlet 1, the escape-preventive step 31 comes into close contact with the retaining step 41 to cause a part of the second larger diameter portion 41a to fit into the retaining step 4 so as to be in close contact with the packing ring, the fastening nut 40 including a to-be-installed object engagement section 43 having a threaded portion 43 a formed on the outer peripheral surface thereof so as to be screw-engaged with a female screw portion 62 of the to-be-installed object 60, the to-be-installed object engagement section extending from the second smaller diameter portion 41b and protrude outwardly from the first smaller diameter portion 31b; and a direction control means 70 for controlling the direction of the to-be-installed object 60 screw-engaged with the to-be-installed object fastening nut 40 at the first and second smaller diameter portions 31b and 41b.

[3] The connector according to claim 1 or 2, wherein the direction control means 70 comprises: a plurality of protruding pieces 71 extending outwardly from a distal end of the first smaller diameter portion 31b of the clamping nut 30; at least one or more lugs 72 formed inwardly from the inner surfaces of each the protruding pieces toward the central direction of the clamping nut 30, the lugs being formed in a circumferential direction of the clamping nut at uniform intervals; a plurality of concave depressions 73 and convex prominences 74 alternately arranged circumferentially on the outer peripheral surface of the second smaller diameter portion 41b of the fastening nut 40 at uniform intervals, the concave depressions 73 being adapted to receive the lugs 72 therein and each of the convex prominences 74 having windward and leeward faces 74a with a gentle angle so as to cause the lugs to move therealong to be received in a neighboring concave depression to thereby allow the fastening nut 40 to be turned within the clamping nut 30 when the to-be-installed object is turned in a screw-engagement direction.

[4] The connector according to claim 3, wherein the protruding pieces 71 are divisionally formed in plural numbers.

[5] The connector according to claim 3, wherein the convex prominences 74 has an anti-counter rotation surface 74b formed angularly on the outer surface thereof so that when the to-be-installed object 60 is turned in a counter- screw engagement direction, the anti-counter rotation surface 74b is caught by the lug 72 to cause the to-be-installed object fastening nut 40 and 50 not to be turned together with the to-be-installed object 60.