KR101452360B1 - Tube Fitting Assembly With Indicating Means Capable of Recognizing by the Sense of Hearing or Touch - Google Patents

Abstract

The present invention relates to a pipe joining assembly for gripping an end portion of a pipe. The pipe joining assembly includes a body having a front end of a pipe inserted and a male screw formed on an outer peripheral surface; a nut having a female screw fastened to the male screw formed at an inner peripheral surface; one or more body hooks protruding from the outer peripheral surface of the body; a nut hook formed at the inner peripheral surface of the nut to be coupled to the body hooks; and a perception member formed in an elastic structure to be locked by passing over the body hooks when the body and the nut are fastened, and installed to audibly or tactually perceive that a fitting is pulled up, so that the elastic perception member can audibly or tactually check that a fitting is appropriately pulled up by being locked by passing over the body hooks when the body and the nut are fastened.

Description

TECHNICAL FIELD [0001] The present invention relates to a pipe fitting assembly having an auditory or tactile perceptible member,

[0001] The present invention relates to a pipe joint assembly for gripping an end of a pipe, and more particularly to a pipe joint assembly for gripping an end of a pipe, up of a pipe joint to be audible or tactile.

In general, a pipe (pipe or tube) used for piping for transferring a liquid or a gas is manufactured in a predetermined length according to the standard, so that a plurality of pipes are connected to each other to form a pipe having a desired length and shape. Accordingly, pipe joints of various materials and shapes are used for pipe connection. Such pipe joints are structured so as to seal the delivered fluid so as to prevent leakage.

In the related art Patent Document No. 10-2004-0084507, there is disclosed a pipe connection port for connecting a pair of pipes, wherein the pipe connection pipe is provided with a hollow body and has a male screw portion on one side or both sides thereof, And an outer pressing surface formed on an outer circumferential surface of the tube coupled to the insertion end and formed by an inclined surface of the outer circumferential surface to press the outer circumferential surface of the tube, And a female screw portion which is located on the outer peripheral surface of the pressing portion and which is coupled to a male thread portion formed on the outer peripheral surface of the pressing portion in a shape for receiving the pressing portion, And a fastening portion is formed on the side wall of the pipe.

However, the conventional pipe connector as described above is not only complicated in structure, but also has a disadvantage in that if it does not follow a complicated fastening method for accurate fastening, the airtight action is not sufficiently performed and the fluid in the pipe is leaked.

A tapered ferrule for airtightness is provided between the body and the nut, and when the body and the nut rotate relative to each other, the ferrule Which is referred to in the field as being "pulled up ", and the ferrule grips the tube wall tightly by a swaging action.

Typically, the tube connector as described above is carried to the customer with the nut screwed into the body to a position where it is tightened by hand. Then, for pipe connection on the customer side, the assembler first pushes the tube end in the axial direction until the tube end abuts against the inner stop shoulder on the body. When the fitting is in the initial hand-tightened position, the assembler completes the installation by relatively rotating the body and nut using, for example, a wrench or a wrench.

The number of revolutions for properly pulling up the tube fittings is determined by a number of factors including the proper axial displacement of the nut relative to the body to ensure that the ferrule is properly swaged to the tube wall and the thread pitch. Although the various parts of the fitting are machined with high precision and assembled into a hand-tightened position, the operation of a wrench or spanner for rotating the nut at the appropriate number of revolutions to pull up the fitting may still be difficult.

As a conventional technique for confirming an appropriate pull-up of the tube fitting, Korean Patent Laid-Open Publication No. 10-2002-0039671 discloses that the fitting is properly pulled up by having a marking which is visible at the time of initial fastening and which is not visible at the time of additional fastening, A tube fitting is disclosed which can be visually confirmed.

According to such prior art documents, the operator can confirm that the fitting is properly pulled up, so that the tube fitting operation is facilitated and the fitting operation can be performed safely.

However, in the conventional case, there is a disadvantage in that it is impossible to confirm the tube fitting at an environment that is visually difficult to confirm, for example, in a dark working space or at night, because the worker can visually confirm it only visually.

Therefore, in the art, there is a demand for a method of confirming a proper pull-up of a tube fitting by a method other than a visual method. Accordingly, the present applicant has completed the present invention after filing the present invention.

Korean Patent Publication No. 10-2004-0084507 Korean Unexamined Patent Application Publication No. 10-2002-0039671

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a method and apparatus for detecting a pulled up fitting of a fitting in a manner such that a cognition member having elasticity is hooked over a hook of the body when a body and a nut are fastened, It is an object of the present invention to provide a pipe joint assembly in which a worker can confirm the pull-up of a tube fitting even in a dark environment or night work.

In order to accomplish the above object, the present invention provides a method of manufacturing an internal combustion engine, comprising: a body having a tube inserted with a tip thereof and having a male screw formed on an outer circumferential surface thereof; a nut formed on an inner circumferential surface of the female screw fastenable with the male screw; A nut hook formed on an inner circumferential surface of the nut and engageable with the body hook, and a structure having elasticity such that the nut hook is caught over the body hook when the body and the nut are fastened, A cognition member mounted to be audibly or tactilely perceived as being pulled up.

In the present invention, the body hook may include a first body hook formed to protrude from an outer circumferential surface of the body, and a second body hook formed apart from the first body hook, Wherein the nut hook is coupled to the first body hook when the nut advances in the axial direction, and at the same time the cognitive member is hooked over the second body hook, Or tactile.

Here, the cognition member may be formed of a 'C' shaped elastic ring having a cut-out portion formed at one side thereof.

The body hook and the nut hook may include an inclined surface formed in a portion abutting in the fastening direction, a curved surface connected to the inclined surface, and a vertical surface connected to the curved surface.

The recognition member may be a ring-shaped body and protruding pieces formed on the body and coupled to the body hook when the body and the nut are fastened.

In this case, the perceiving member is provided on the outer peripheral surface of the nut.

In addition, the position and movement of the cognition member are fixed at an installation position before assembly, and the position and movement of the cognition member may be free after assembly.

In this case, the perceiving member is installed between the first body hook and the second body hook.

In addition, the cognition member is free to move within the installation space before assembly. After assembly, its position and movement can be fixed.

In this case, the perceiving member is provided on the outer surface of the nut.

The nut hooks may be spaced apart from each other at regular intervals, and the protruding pieces may be installed in the spaced spaces between the nut hooks.

In this way, when a plurality of nut hooks are formed instead of a ring-shaped band, it is preferable that the length or the number of the nut hooks formed is equal to or in inverse proportion to the height h of the nut hook.

According to an aspect of the present invention, a cut-away portion is formed at one side of the body, and a fitting groove into which the body can be fitted may be formed at a tip or a rear end of the nut.

At least two or more protrusions may be formed.

In the present invention, a ferrule may be further included to provide a hermetic function between the body and the nut.

As described above, according to the present invention, it is possible to visually or tactically confirm that the fitting is properly pulled up in such a manner that the cognition member having elasticity is hooked over the hook of the body when the body and the nut are fastened Therefore, the operator can confirm the pull-up of the tube fitting even in dark environment or night work.

1 is a sectional view showing a first embodiment of a pipe joint assembly having a perceptible member according to the present invention.
Fig. 2 is a plan view showing the cognition member in Fig. 1. Fig.
Figs. 3 to 4 are sectional views sequentially showing steps in which the first embodiment of the present invention is fitted into the pull-up state.
5 is a perspective view showing a second embodiment of a pipe joint assembly having a perceptual member according to the present invention.
Fig. 6 is a cross-sectional view of Fig. 5, wherein (a) shows the state after the completion of the engagement, and Fig. 6 (b) shows the state before the completion of the engagement.
Fig. 7 is a perspective view showing the cognition member in Fig. 5;
8 is a perspective view showing a third embodiment of a pipe joint assembly having a perceptual member according to the present invention.
Fig. 9 is a perspective view showing the cognition member in Fig. 8; Fig.
10 is a perspective view showing a fourth embodiment of a pipe joint assembly having a perceptible member according to the present invention.
11 is a perspective view showing the cognition member in Fig.
12 is a cross-sectional view showing a fifth embodiment of a pipe joint assembly having a perceptible member according to the present invention.
Fig. 13 is a perspective view showing the cognition member in Fig. 12; Fig.
14 is a cross-sectional view showing a sixth embodiment of a pipe joint assembly having a perceptible member according to the present invention.
Fig. 15 is a front view showing the cognition member in Fig. 14; Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. The structure and operation of the present invention shown in the drawings and described by the drawings are described as at least one embodiment, and the technical ideas and the core structure and operation of the present invention are not limited thereby.

It will also be appreciated by those skilled in the art that the present invention can be implemented in a wide variety of tube fittings and couplings that rotate relatively to form a tube fitting assembly. For example, the present invention can be conveniently used with a single ferrule tube fitting, or with any two-part coupling in which a suitable assembly is determined in part by relative rotation between two thread-forming parts.

Fig. 1 is a cross-sectional view showing a first embodiment of a pipe joint assembly having a cognition member according to the present invention, Fig. 2 is a plan view showing the perception member in Fig. 1, A step in which the embodiment is fitted in a pulled-up state is a sectional view sequentially shown.

The tube fitting assembly of the present invention includes a body 110, which is a coupling body, and a nut 120. The body 110 has an end having a tube (tube or pipe) (not shown) at the tip thereof and a male screw 112 at the outer surface. The nut 120 is formed on an inner circumferential surface of the nut 110 and is fastened to the body 110 by a relative rotation between the body 110 and the nut 120. [ have.

The body 110 shown in the figure is a union type in which an end portion connecting the pipes on the left and right sides is formed in a straight line direction and two pipes are inserted in the right and left directions respectively. In the embodiment of the present invention, However, the present invention is not limited to this. However, the present invention is not limited to this, but an elbow connecting two pipes at an angle, a tee connecting three pipes, or a cross connecting four pipes may be applied The control of the fluid flowing through the pipe, or the measurement of the fluid flowing through the pipe, and can be connected to the above-mentioned various connection devices.

In addition, the present invention is applicable to all pipe joints made of plastic, non-ferrous metal, steel, and stainless steel. That is, the material of the body 110 and the nut 120 is not limited, and the material of the tube is not limited.

Meanwhile, the pipe joint assembly of the present invention may further include a ferrule (not shown) that hermetically acts between the body 110 and the nut 120. The ferrule may be composed of a front ferrule and a rear ferrule. As the nut 120 is fastened onto the body 110, the rear ferrule is propelled in the forward ferrule direction, i.e., forward, , Causing the inner radial displacement of the ferrule to be swaged so as to be strongly gripped on the wall of the tube. Since such a ferrule can be applied in various shapes, it is not limited in the present invention.

The present invention also includes a body hook 114 formed to protrude from an outer circumferential surface of the body 110 to maintain a fastened state between the body 110 and the nut 120, And a nut hook 124 formed on the body hook 114 and engageable with the body hook 114.

The body hook 114 and the nut hook 124 are formed in the form of a ring-shaped band on the body 110 and the nut 120, respectively. That is, the body hook 114 protrudes in a circular shape surrounding the outer circumferential surface of the body 110, and the nut hook 124 protrudes in a circular shape around the inner circumferential surface of the nut 120.

The body hooks 114 may be formed on at least one or more outer surfaces of the body 110. That is, one or more body hooks 114 may be formed.

The pipe joint assembly of the present invention includes a cognition member 130 having a resilient structure so as to be caught by the body hook 114 when the body 110 and the nut 120 are fastened .

The present invention allows the operator to visually confirm that the fitting has been properly pulled up in the prior art, so that the operator can visually confirm that the fitting is not pulled up, for example, in a dark working space or at night work, The recognition member 130 is proposed as a configuration for overcoming the disadvantage that it is impossible to confirm the presence of the user.

When the body 110 and the nut 120 are fastened to each other, the recognition member 130 may extend beyond the body hook 114 to be engaged with the body 110 It is a part that is installed to recognize audibly or tactually that the fitting is pulled up.

In the first embodiment of the present invention, as shown in FIG. 2, the perceived member 130 is formed of a 'C' shaped elastic ring in which a cut-out portion 132 is formed at one side.

The perceived member 130 is installed in the body 110. In the first embodiment of the present invention, a plurality of the body hooks 114 and 115 are provided to install the perceived member 130 desirable.

That is, the body hook 114 includes a first body hook 114 protruding from the outer surface of the body 110, a second body hook 114 formed apart from the first body hook 114, And the perceived member 130 is installed between the first body hook 114 and the second body hook 115, and the movement thereof is fixed.

The body hook 114 includes an inclined surface 114a formed at a portion of the body hook 114 to be engaged with the inclined surface 114a, a curved surface 114b connected to the inclined surface 114a, and a vertical surface 114c connected to the curved surface 114b. . ≪ / RTI >

The inclined surface 114a, the curved surface 114b and the vertical surface 114c are shown only in the first body hook 114. The inclined surface 114a, the curved surface 114b, But also to the second body hook 115 and the nut hook 124 as well as the body hook 114.

In other words, the number of the second body hooks 115 and the nut hooks 124 is not specifically defined in the drawings. However, the number of the second body hooks 115 and the nut hooks 124 is not limited to the number of the hooks, As shown in FIG.

When the body 110 and the nut 120 are fastened together, the body hook 114 and the nut hook 124 first come into contact with the inclined surface 114a, and the nut 120 is further tightened in the fastening direction The inclined surface of the nut hook 124 rides over the inclined surface 114a of the body hook 114 so that the nut hook 124 can be engaged.

In the present invention, the curved surface 114b of the body hook 114 may be rounded to have a radius of curvature R of 0.1 to 0.2 mm. When the radius of curvature of the curved surface 114b of the body hook 114 is less than 0.1 mm, coupling with the nut 120 is facilitated. If the radius of curvature of the curved surface 114b of the body hook 114 exceeds 0.2 mm, it is easy to engage with the nut 120, but the force to hold the nut 120 is not sufficient A problem may occur that the nut 120 is released from the body 110 or the used fluid leaks to the outside due to the internal pressure generated by the fluid used after the final tightening of the pipe.

However, in the present invention, the radius of curvature of the curved surface of the body hook 114 is not limited thereto, but may be less than or greater than the curvature radius depending on the hardness or strength of the body 110 or the nut 120 .

The inclined surface 114a of the body hook 114 may be formed to have an angle range of 30 ° to 60 ° with the central axis of the body 110. When the angle formed by the inclined surface 114a of the body hook 114 and the central axis of the body 110 is less than 30 degrees, The nut 120 is easily engaged with the nut 120, but the force for catching the nut 120 is not sufficient, so that the nut 120 is disengaged from the body 110 due to the internal pressure generated by the fluid used after the final tightening of the tube There is a possibility that the use fluid leaks to the outside. When the angle formed between the inclined surface 114a of the body hook 114 and the central axis of the body 110 exceeds 60 degrees, the coupling with the nut 120 is not easy.

However, the present invention is not limited thereto, and the angle may be less than or greater than the hardness or strength of the body 110 or the nut 120.

When the nut 120 is advanced in the axial direction, the nut hook 124 is hooked over the first body hook 114, and the first body hook 114 and the second body hook 114 are engaged with each other. The end of the nut 120 is pushed by the perceived member 130 installed between the second body hooks 115 so that the perceived member 130 is caught by the second body hook 115 4).

At this time, in order for the cognition member 130 to pass over the second body hook 115, the cognition member 130 must have a self-elastic force. For this, in the first embodiment of the present invention, the shape of the perceived member 130 is formed in a 'C' shape, and the cut portion 132 of the perceived member 130 is slightly resiliently expanded, 130 are hooked over the second body hook 115.

In this case, the perceived member 130 moves beyond the second body hook 115 to catch the pull-up state of the fitting auditory or tactile by the operator. In other words, a sound such as 'click' is generated by the action of the perceived member 130 passing over the second body hook 115, and the operator can hear it and recognize that the fitting is properly pulled up. Such a "click" sound is caused by a vibration due to an impact between the body 110 and the perceived member 130, and this vibration is also recognized by the touch of the operator via the body 110 and the nut 120 You can. In addition, the perceived member 130 is free to move beyond the second body hook 115, thereby making it easy to confirm whether or not the proper number of rotations of the nut 120 is satisfied.

As described above, the perceived member 130 of the present invention audibly generates sound when it is hooked over the body hook 115, which is a protrusion formed on the body 110, by relative rotation of the nut 120, .

In addition, the perceived member 130 of the present invention can be used also as a tactile display unit by generating vibrations by hooking over the body hook 115, which is a projection formed on the body 110, by relative rotation of the nut 120 have.

In addition, the perceived member 130 of the present invention is free to move beyond the body hook 115, which is a protrusion formed on the body 110, by relative rotation of the nut 120, It can be used as inspection means.

Referring to an exemplary method of assembling a tube, referring to a first embodiment of the present invention, the assembler uses a wrench or other suitable tool to hold the body 110 in a fixed position, ) Rotates the nut (120) until it makes an audible sound. Thereby, the operator can recognize that the fitting is assembled into the pull-up state and stop the rotation of the nut 120. [

In addition to the above-described auditory display, the perceived member 130 of the present invention can recognize the fitting pull-up state to the operator in a tactile sense because the perceived member 130 protrudes from the outer peripheral surface of the body 110 Because they are joined together. That is, when the recognition member 130 is hooked over the second body hook 115 by rotating the nut 120 relative to the body 110, the recognition member 130 may be rotated The second body hook 115 is coupled to the front of the second body hook 115, so that the operator can perceive that the second body hook 115 is pulled up by touching with the hand.

Therefore, the tube fitting operation can be appropriately performed even in dark or nighttime work due to poor working environment, so that safety and ease of operation are improved, and time for inspection work after completion is also reduced.

In the meantime, various embodiments of the present invention will be described with reference to the remaining drawings. These variations are for illustrative purposes only and are not to be construed as limiting the scope of the invention. Further, in the same parts used for the tube fitting such as the body, the nut and the like, the reference numerals of the corresponding parts described in connection with the first embodiment are used as they are.

First, embodiments in which the perceiving member 130 is installed on the body 110 as in the first embodiment described above will be described.

Fig. 12 is a sectional view showing a fifth embodiment of a pipe joint assembly having a cognition member according to the present invention, Fig. 13 is a perspective view showing the cognition member in Fig. 12, Sectional view showing a sixth embodiment of the pipe joint assembly, and Fig. 15 is a front view showing the perception member in Fig.

The fifth embodiment of the present invention is characterized in that the body hooks 114 and 115 protrude from the outer circumferential surface of the body 110 and the first body hook 114, And a second body hook 115 spaced apart from the first body hook 115. The recognition member 130 includes a body 134 formed in a ring shape and extending inwardly from the body 134, 120 formed on the upper surface of the second body hook 115.

Here, the projecting piece 136 of the perceived member 130 is installed between the first body hook 114 and the second body hook 115 to fix the movement.

In the fifth embodiment, when the nut 120 is advanced in the axial direction, the nut hook 124 is hooked over the first body hook 114, and at the same time, the first body hook 114 and the second The end portion of the nut 120 is pushed by the perceived member 130 installed between the body hooks 115 so that the protruded piece 136 of the perceived member 130 passes over the second body hook 115 (FIG. 12).

In this case, the protruding piece 136 is hooked over the second body hook 115 so that the operator can perceive the pull-up state of the fitting audibly or tactually. That is, when the protruding piece 136 is moved beyond the second body hook 115, for example, a click sound is generated, and the operator can recognize that the fitting has been properly pulled up. Such a "click" sound is caused by a vibration due to an impact between the body 110 and the perceived member 130, and this vibration is also recognized by the touch of the operator via the body 110 and the nut 120 You can. In addition, the protruding piece 136 is free to move beyond the second body hook 115, thereby making it easy to confirm whether or not the appropriate number of rotations of the nut 120 is satisfied.

The sixth embodiment of the present invention is configured such that the perceiving member 130 is fitted to the second body hook 115 of the body hooks 114 and 115.

That is, as shown in FIG. 14, the second body hook 115 is formed of two pieces 115a and 115b, and the recognition body 130 is inserted between the two body hooks 115a and 115b .

When the body 110 and the nut 120 are fastened to each other, the perceived member 130 may include a body 134 formed in a ring shape and extending inwardly from the body 134, At least two protruding pieces 136 that extend beyond the body hook 115 are formed radially.

When the nut 120 is advanced in the axial direction, the nut hook 124 is engaged with the first body hook 114 and the protrusion piece 136 of the cognitive member 130 is coupled to the first body hook 114, Is pushed by the second body hook 115 and is caught by the second body hook 115b so that the pull-up of the fitting can be perceived audibly or tactually.

Meanwhile, the perceived member 130 of the present invention may be installed in the body 110 as in the above-described embodiments, but may be installed in the nut 120 as well.

FIG. 5 is a perspective view showing a second embodiment of a pipe joint assembly having a perceiving member according to the present invention, FIG. 6 is a sectional view of FIG. 5, wherein (a) Fig. 7 is a perspective view showing the cognition member in Fig. 5; Fig.

In the first embodiment of the present invention, the body hook 114 and the nut hook 124 protrude from the body 110 and the nut 120 in the form of a ring-shaped band, At least one hook 124 may be formed on a part of the inner circumferential surface of the nut 120 rather than being formed in the shape of a circular strip on the inner circumferential surface of the nut 120, At least two or more of them are formed.

Here, the number and the length of the nut hook 124 are not limited to the present invention, and as shown in FIG. 5, it is preferable that the nut hook 124 is formed symmetrically. However, the nut hook 124 is not necessarily formed symmetrically, but the present invention is not limited thereto.

In this case, the length or the number of the nut hooks 124 may be inversely proportional to the combined height of the body hooks 114 and the nut hooks 124. That is, when the coupling height between the body hook 114 and the nut hook 124 is low, the nut hook 124 is preferably long. This is because if the coupling height between the body hook 114 and the nut hook 124 is low, the coupling force between the nut 120 and the body 110 becomes low. Therefore, And the force for preventing the natural loosening of the nut 120 becomes weak.

It is preferable that the nut hook 124 is formed to be long when the coupling height between the body hook 114 and the nut hook 124 is low. On the contrary, when the coupling height of the body hook 114 and the nut hook 124 is low, When the coupling height is high, the nut hook 124 may be formed short. This is because when the height of the coupling between the body hook 114 and the nut hook 124 is high, the coupling force between the nut 120 and the body becomes relatively high. Accordingly, the vibration of the body and the nut 120 The force for preventing natural loosening becomes strong. It is preferable that the height of the nut hook 124 of the nut 120 is higher and it becomes more difficult to engage with the body hook 114 of the body 110 so that the length or the number of the nut hook 124 is preferably small .

7, the sensing member 130 includes a body 134 formed in a ring shape, and a body 134 extending from the body 134. The body 134 includes a body 110, And a protrusion piece 136 which is coupled to the body hook 114 when the fastener 120 is fastened.

In this case, the perceived member 130 is installed on the outer circumferential surface of the nut 120, and the protruding piece 136 is installed in a spaced space between the nut hooks 124.

In addition, the body 134 of the perceived member 130 may be formed to have a larger diameter than the nut 120. That is, as shown in the cross-sectional view of FIG. 6, the body 134 is formed to be larger than the nut 120 so that the body 134 is freely installed.

The body hook 114 may be formed at one side of the body hook 114 with a coupling groove 116 into which the projecting piece 136 of the perceiving member 130 can be inserted.

6) between the bottom surface of the protrusion piece 136 of the perceived member 130 and the central axis of the body 110 is larger than the distance between the bottom surface of the coupling groove 116 and the body 110 (D) between the central axes of the first and second plates. 6, the body 134 of the perceived member 130 is formed to be larger than the nut 120, so that the movement of the body 134 is free before assembling, The position of the perceiving member 130 is fixed due to the difference in distance from the bottom surface of the projecting piece 136 to the central axis of the bottom surface of the engaging groove 116 .

This is also applied to the case where the coupling groove 116 is not formed and only the body hook 114 is formed on the body 110. That is, the distance d between the bottom surface of the projecting piece 136 and the center axis of the body 110 is smaller than the radius D of the body 110 at the front side of the body hook 114 When the protruding piece 136 passes over the body hook 114, the protruding piece 136 is fixed to the outer diameter portion of the body 110.

As shown in the figure, the protruding pieces 136 may be formed at intervals of 180 degrees, and the number of the nut hooks 124 of the nut 120 may be increased or decreased according to the number of the nut hooks 124.

In the second embodiment of the present invention, when the nut 120 is advanced in the axial direction, the nut hook 124 is passed over the body hook 114 and is caught in the spacing space between the nut hooks 124 The projecting piece 136 of the perceived member 130 installed on the body hook 114 is also hooked over the body hook 114 so that it can be pulled up properly as shown in FIG. 6 (a).

At this time, since the end portion of the protruding piece 136 extending from the body 134 is formed as a free end, the perceived member 130 has a self-elastic force and can move over the body hook 114. That is, when the protruding piece 136 of the perceived member 130 applies pressure to the body hook 114 and presses the body hook 114 with a larger force, the protruding piece 136 passes over the body hook 114 and is caught by the body hook 114 will be.

In this case, the protruding piece 136 of the perceived member 130 is moved beyond the body hook 114 so that the operator can perceive the pull-up state of the fitting audibly or tactually. That is, as in the first embodiment described above, when the operator catches the sound such as "click" due to the action that the protruding piece 136 is moved beyond the body hook 114 and the fitting is properly pulled up It is possible to recognize that Such a "click" sound is caused by a vibration due to an impact between the body 110 and the protruding piece 136 of the perceived member 130. This vibration is transmitted to the operator 110 via the body 110 and the nut 120, It can be recognized by the tactile sensation. In addition, the perceived member 130 can easily confirm whether the movement of the cognition member 130 is fixed while passing over the body hook 114 and the proper number of rotations of the nut 120 is satisfied.

The nuts 120 are rotated relative to the body 110 so that the protruded pieces 136 of the perceived member 130 move over the body hooks 114 and are caught by the tactile display means Can be used.

When the nuts 120 are rotated relative to the body 110 so that the protruded pieces 136 of the perceived member 130 are caught by the body hooks 114, The bottom of the body hook 114 is coupled to the outer diameter portion of the front portion of the body hook 114 as shown in Fig. 6 (a), and since the movement thereof is restrained, I can do inspection.

Therefore, the tube fitting operation can be appropriately performed even in dark or nighttime work due to poor working environment, thereby improving the safety and easiness of the work and shortening the time required for the inspection work after completion of the work.

Fig. 8 is a perspective view showing a third embodiment of a pipe joint assembly having a cognition member according to the present invention, Fig. 9 is a perspective view showing the cognition member in Fig. 8, Fig. 11 is a perspective view showing the cognition member in Fig. 10; Fig.

The perceived member 130 of the third or fourth embodiment of the present invention includes a body 134 formed in a ring shape and a body 134 extending from the body 134 to connect the body 110 and the nut 120, And the protruding pieces 136 that are coupled to the body hooks 114 when they are fastened together are the same as those of the second embodiment described above.

However, in the third or fourth embodiment, a cutout portion 132 is formed at one side of the body 134, and the perceived member 130 is inserted into the nut 120, There is a difference in that it is configured to be installed in the fitting groove 126.

That is, in the second embodiment, the body 134 is formed to have a larger diameter than the size of the nut 120, so that the protruding piece 136 is fitted in the spacing space between the nut hooks 124, The third and fourth embodiments are different in that the body 134 is formed of a 'C' shaped elastic ring in which the cutout 132 is formed.

In addition, the nut 120 has a fitting groove 126 through which the body 134 can be inserted.

The third embodiment of the present invention is characterized in that the fitting groove 126 is formed at the distal end of the nut 120 and the fitting groove 126 is formed at the rear end of the nut 120 according to the fourth embodiment of the present invention. .

In the third or fourth embodiment of the present invention, when the nut 120 is advanced in the axial direction, the nut hook 124 is passed over the body hook 114 and is engaged with the nut 120 The projecting piece 136 of the installed cognition member 130 may be pulled over the body hook 114 so that the pulling piece 136 may be properly pulled up. When the nut 120 is rotated, The sound is generated by being hooked over the hook 114, so that the operator can recognize the pull-up state of the fitting audibly or tactually.

That is, when the protruding piece 136 is moved beyond the body hook 114, a sound such as 'click' is generated by the operation, and the operator can recognize that the fitting is properly pulled up. Such a sound is caused by the vibration of the body 110 and the protruding piece 136 of the perceiving member 130. The vibration is transmitted to the operator 110 via the body 110 and the nut 120, It can be recognized by the tactile sensation. In addition, the perceived member 130 can easily confirm whether the movement of the cognition member 130 is fixed while passing over the body hook 114 and the proper number of rotations of the nut 120 is satisfied.

Since the cutout portion 132 is formed in the body 134, when the protruding piece 136 passes over the body hook 114, the perceptible member 130 is elastically opened, 136 and the body hook 114 can be further easily combined.

In the pipe joint assembly of the present invention, as described above, since the perceived member 130 catches over the body hook 114, which is a protrusion formed in the body 110, to generate sound audibly, .

Further, when the perceived member 130 is moved beyond the body hook 114, the body hook 114 is blocked by the perceived member 130, so that the operator can sense that the pull- It is.

Therefore, the tube fitting operation can be appropriately performed even in the dark or nighttime work due to poor working environment, so that safety and ease of operation can be improved, and the time required for the inspection work after completion of the work can be reduced.

The above description is only illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. It should be noted that the embodiments disclosed in the present invention are not intended to limit the scope of the present invention and are not intended to limit the scope of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas falling within the scope of the same shall be construed as falling within the scope of the present invention.

110: Body 114: Body hook
114a: an inclined surface 114b: a curved surface
114c: vertical surface 120: nut
124: nut hook 130:
132: incision section 134: body
136:

Claims (15)

delete A body into which a tip of a tube is inserted and a male screw is formed on an outer circumferential surface thereof;
A nut formed on an inner circumferential surface of a female screw fastenable to the male screw;
At least one body hook formed to protrude from an outer circumferential surface of the body;
A nut hook formed on an inner circumferential surface of the nut and engageable with the body hook; And
A cognition member having a resilient structure for catching over the body hook when the body and the nut are fastened, the cognition member being installed so as to recognize audibly or tactually that the fitting is pulled up;
/ RTI >
Wherein the body hook comprises a first body hook formed to protrude from an outer circumferential surface of the body and a second body hook formed apart from the first body hook,
Wherein the recognition member is installed between the first body hook and the second body hook,
Wherein when the nut is advanced in the axial direction, the nut hook is engaged with the first body hook and the cognition member passes over the second body hook to be perceived audibly or tactilely. Joint assembly. The method of claim 2,
Wherein the cognition member is a 'C' shaped elastic ring having a cut-out portion formed at one side thereof. The method of claim 2,
Wherein the perceiving member comprises a ring-shaped body,
And a protruding piece formed to extend inward from the body and to be coupled to the second body hook when the body and the nut are fastened together. A body into which a tip of a tube is inserted and a male screw is formed on an outer circumferential surface thereof;
A nut formed on an inner circumferential surface of a female screw fastenable to the male screw;
At least one body hook formed to protrude from an outer circumferential surface of the body;
A nut hook formed on an inner circumferential surface of the nut and engageable with the body hook; And
A cognition member having a resilient structure for catching over the body hook when the body and the nut are fastened, the cognition member being installed so as to recognize audibly or tactually that the fitting is pulled up;
/ RTI >
Wherein the body hook comprises a first body hook formed to protrude from the outer circumferential surface of the body and a second body hook formed apart from the first body hook and fitted with the perceiving member,
Wherein when the nut is advanced in the axial direction, the nut hook is engaged with the first body hook and the cognition member passes over the second body hook to be perceived audibly or tactilely. Joint assembly. The method of claim 5,
Wherein the perceiving member comprises a ring-shaped body,
Wherein at least two projecting pieces extending radially inward from the body and passing over the second body hook when the body and the nut are fastened together are radially formed. The method according to any one of claims 3 to 6,
Wherein the cognition member is free to position and move after the body and nut are secured in position and movement before engagement and after the engagement of the body and the nut has crossed the second body hook. A body into which a tip of a tube is inserted and a male screw is formed on an outer circumferential surface thereof;
A nut formed on an inner circumferential surface of a female screw fastenable to the male screw;
At least one body hook formed to protrude from an outer circumferential surface of the body;
A nut hook formed on an inner circumferential surface of the nut and engageable with the body hook; And
A cognition member having a resilient structure for catching over the body hook when the body and the nut are fastened, the cognition member being installed so as to recognize audibly or tactually that the fitting is pulled up;
/ RTI >
Wherein the perceiving member comprises a ring-shaped body,
And a protruding piece extending inwardly from the body and coupled to the body hook when the body and the nut are fastened together. The method of claim 8,
Wherein the perceived member is installed on an outer circumferential surface of the nut. The method of claim 9,
The recognition member is positioned and movable in an installation space before the body and the nut are fastened. After the fastening of the body and the nut is completed, the recognition member is coupled to the outer diameter portion of the body hook, ≪ / RTI > The method of claim 9,
Wherein a plurality of the nut hooks are spaced apart from each other at regular intervals, and the protruding pieces are installed so as to fit in the spacing space between the nut hooks. The method of claim 11,
Wherein the length or number of the nut hooks formed is inversely proportional to the height h of the nut hook. The method of claim 8,
The body is formed with a cut-out portion having one side,
Wherein a fitting groove is formed at a front end or a rear end of the nut to allow the body to be inserted. The method of claim 8,
Wherein at least two protrusions are formed. delete

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