KR102663718B1 - Pipe connector with an indicator of inserted pipe location - Google Patents

Abstract

The present invention relates to a piping connection connector that allows the pipe to be easily separated while allowing visual confirmation of whether the tip of the pipe is fully inserted,
a tightening screw (170) screwed to the tip of the intubation portion (111) of the pipe connection connector body (10) and having an insertion hole into which the pipe is inserted; a cylindrical moving body 250 provided inside the intubation unit 111; an insertion position confirmation ring 300 coupled to the outer peripheral surface of the mobile body 250 through a long hole-shaped through hole 120 and disposed on the outer peripheral surface of the body 10; Elastic means 110 for pressing the moving body 250 in the tip direction within the intubation unit 111; By being composed of a detachable ring 200 that presses the grip piece 213 of the grab ring 210 provided at the rear end of the tightening screw 170,
When the pipe (1) is inserted, the moving body (250) and the insertion position confirmation ring (300) are moved to the rear end to confirm the insertion state of the pipe, and when the detachable ring (200) is pressed towards the rear end, the elastic means (110) The pipe (1) is easily separated due to the elastic restoring force of and at the same time, the insertion position confirmation ring (300) is moved to the original position at the distal end.

Description

A detachable pipe connector that allows checking the pipe insertion location {Pipe connector with an indicator of inserted pipe location}

The present invention allows an operator to visually check whether the pipe tip is completely inserted into the piping connection port when inserting the pipe tip into the connection port of the valve body or the connection port of the piping connection (hereinafter referred to as 'piping connection port'). It relates to a piping connection port that allows the pipe to be easily separated from the piping connection port.

Piping connection connectors, which are firmly fastened by inserting piping (hereinafter referred to as 'pipe') for water supply, cooling or heating, etc. into the connection port of the valve body or the connection port of the piping connector, have various uses and forms.

The piping connection port connecting two pipes has two sockets into which the ends of each pipe can be inserted, and is used to connect and extend the two pipes. The piping connection port, which is integrated with the valve body, opens and closes the valve. It is used to control the flow of fluid inside the pipe.

Another type of pipe connection connector has a socket into which the end of the pipe is inserted is formed at one end and a threaded fastening part is formed at the other end, so it can be used for more diverse purposes.

If these pipe connection connectors are not firmly connected to the end of the pipe, fluid leakage and leakage will inevitably occur at the connection area.

In order to increase connectivity and airtightness, general piping connectors that have been widely used in the past are welded or fastened using separate fixing means such as screws.

As for piping connection connectors according to the prior art, various technologies are known, such as Republic of Korea Patent Registration No. 10-0981565 and Korea Patent Registration No. 10-2033511. When connecting pipes through which fluid is transported, the pipe to be fastened is connected to the pipe. If it is not firmly fastened after deeply inserting it into the fastener formed on the connection port, problems such as fluid leaking between the piping connection port and the pipe tip or the pipe being separated from the piping connection port frequently occur.

In order to solve this problem, technology related to a "piping connection port capable of checking the insertion position of the pipe", which can check whether the pipe is sufficiently inserted into the pipe connection port, was published in Republic of Korea Patent Registration No. 10-2452194 (hereinafter referred to as 'Prior Art 1'). It is disclosed in (referred to as ').

In addition, a piping connection connector that allows pipe separation with just a single pressing operation is disclosed in Korean Patent Registration No. 10-2278364 (hereinafter referred to as 'Prior Art 2'). The piping connection connector of the prior art 2 is provided with a grab ring and a release ring, so that the pipe can be easily inserted, and the grab ring presses the outer peripheral surface of the pipe to prevent it from easily falling out, and the grab ring is pushed up with the release ring. This allows the pipe to be easily separated from the piping connection connector.

The prior art 1 was invented by the applicant of the present invention, and the present invention applies the "pipe insertion position confirmation ring" in the prior art 1 to enable the pipe to be easily removed from the pipe connection port while confirming the insertion position of the pipe. I would like to suggest a piping connection port that can be used.

Republic of Korea Patent Registration No. 10-2452194 Republic of Korea Patent Registration No. 10-2278364 Japanese Patent Publication No. 2001-324071 Republic of Korea Patent Registration No. 10-2154466 Republic of Korea Patent Publication No. 10-2019-0002256

The present invention was created to solve the problems described above,

The first purpose is to provide a piping connection port that allows workers to easily check whether the tip of the pipe to be connected is inserted into the piping connection port to a sufficient depth.

In addition, the second purpose of the present invention is to provide a pipe connection connector that is easy to connect pipes and can be easily removed (separated) by pressing without separating parts.

Furthermore, another object of the present invention is to provide a piping connection port that simultaneously implements the above two purposes and has a simple structure and no risk of water leakage.

In order to achieve the above object, the piping connection connector according to the present invention,

an insertion position confirmation ring 300 having a protrusion 330 protruding inward through a plurality of through holes 120 penetrating the body 10;

The inner circumferential surface is closely coupled to the outer circumferential surface of the pipe (1), and the outer circumferential surface is tightly coupled to the inner circumferential surface of the intubation portion 111 of the body 10, and a locking protrusion 255 to which the tip of the pipe 1 is in close contact is located on the inner circumferential surface. A moving body 250 provided at the rear end and having a fixing groove 259 formed on the outer peripheral surface to accommodate the protrusion 330 of the insertion position confirmation ring 300;

Elastic means 110 provided between the first step 115 and the rear end surface of the mobile body 250 to press the mobile body 250 when the tightening screw 170 is locked;

It is provided with a pressing portion 201 in contact with the gripping piece 213 of the grab ring 210, a protrusion 202 is provided on the outer peripheral surface, the inner peripheral surface is in close contact with the outer peripheral surface of the pipe 1, and the tip of the body By being composed of a detachable ring 200 having a cylindrical pressing portion 203 exposed to,

When the pipe (1) is inserted, the moving body (250) and the insertion position confirmation ring (300) are moved to the rear end to confirm the insertion state of the pipe, and when the detachable ring (200) is pressed towards the rear end, the elastic means (110) The pipe (1) is easily separated due to the elastic restoring force of and at the same time, the insertion position confirmation ring (300) is moved to the original position at the distal end.

In addition, the position of the insertion position confirmation ring changes according to the movement of the mobile body 250, and the through hole is made of a long hole formed long in the insertion direction of the pipe, and when the pipe 1 is completely inserted, the mobile body ( In order to prevent the insertion position confirmation ring 250 and the insertion position confirmation ring 300 from moving any further, the rear end surface 253 of the mobile body 250 is in close contact with the contact surface 116, and the insertion position confirmation ring 300 is in close contact with the contact surface 116. It is characterized in that it is attached to the confirmation part 103 of the body 10.

Furthermore, in order to prevent the detachable ring 200 from being separated from the pipe connection port, a separation prevention protrusion 175 corresponding to the protrusion 202 is formed on the inner peripheral surface of the tightening screw 170.

Another problem to be solved by the present invention and its specific solution will be explained in more detail in the ‘specific details for carrying out the invention’ described later and in the accompanying drawings.

The piping connection connector according to the present invention allows the operator to easily check whether the tip of the pipe to be connected is inserted into the piping connection connector to a sufficient depth, thereby preventing fluid leakage between the piping connection connector and the pipe tip, or the pipe being Not only can it prevent problems with the piping being disconnected from the connection port,

When connecting a pipe to a piping connection port, you can quickly connect it with one touch, and you can easily separate the pipe from the piping connection port by simply pressing the detachment ring without removing parts such as tightening screws (nuts).

In particular, the piping connection connector according to the present invention achieves the two effects described above at the same time, but has a simple structure and is easy to manufacture and assemble, thereby increasing the efficiency of industrial use.

Other effects of the present invention will be explained in more detail in the ‘specific details for carrying out the invention’ described later.

1 is an outline diagram of a piping connection connector and a pipe to be connected according to a first preferred embodiment of the present invention.
Figure 2 is an outline view of a pipe inserted into the piping connection port according to the first preferred embodiment of the present invention.
Figure 3 is an exploded perspective view of the piping connection connector according to the first preferred embodiment of the present invention.
Figure 4 is a cross-sectional view of the piping connection port before the pipe is inserted.
Figure 5 is a cross-sectional view of the pipe connection connector showing the state in which the pipe is being inserted.
Figure 6 is a cross-sectional view of a state in which pipe insertion is completed into the piping connection port according to the first embodiment of the present invention.
Figure 7 is an explanatory diagram showing the operation process of the grab ring 210 and the detachment ring 200 in the first embodiment of the present invention.
8 [A] and [B] are partial enlarged views showing various modifications of the moving body 250 of the piping connection connector according to the present invention.

Since the present invention can be subject to various changes and can have various forms, implementation examples (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to a specific disclosed form, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

In addition, in each drawing, the components are expressed exaggeratedly large (or thick), small (or thin), or simplified in size or thickness in consideration of convenience of understanding, etc., but as a result, the scope of protection of the present invention is interpreted as limited. It shouldn't be.

The terms used in this specification are merely used to describe specific implementation examples (sun, aspect, aspect) (or examples), and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, terms such as ~includes~ or ~consists of~ are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having meanings consistent with the meanings they have in the context of the related technology, and unless clearly defined in the present application, should not be interpreted in an ideal or excessively formal sense. No.

~First~, ~Second~, etc. described in this specification are only used to distinguish different components, and are not limited by the order of manufacture, and the names are used in the detailed description and claims of the invention. may not match.

In explaining the piping connection fitting according to the present invention with the accompanying drawings, for convenience, the approximate direction standard is specified with reference to FIGS. 3 to 8,

The direction in which the two members of the pipe (1) and the piping connection connector approach each other (i.e., the direction in which the pipe (1) is inserted into the piping connection connector and the direction in which the piping connection connector faces the pipe (1) is referred to as the 'insertion direction'. and the opposite direction is defined as the ‘separation direction’. In addition, when describing the components of the pipe 1 and the two pipe connection connectors, the insertion direction is referred to as 'tip end' or 'tip direction', and the end in the insertion direction is referred to as 'tip' or 'tip'. The opposite side is referred to as the 'rear end' or 'rear end direction', and the end of the rear end is referred to as the 'rear end' or 'rear end'.

Additionally, the direction toward the central axis of the pipe and piping connection connector is referred to as 'inward' or 'inward direction', and the direction away from the central axis is referred to as 'outward' or 'outward direction'. And in the detailed description and claims of the invention related to other drawings, the direction is specified and described according to this standard, unless otherwise specified.

Hereinafter, the piping connection connector according to the present invention will be described in detail with reference to the accompanying drawings showing preferred embodiments.

1 and 2 are perspective views schematically showing the external appearance of a pipe connection connector according to a preferred embodiment of the present invention. Figure 1 shows the state before the pipe is inserted, and Figure 2 shows the state after the pipe connection is completed. It is shown.

And, Figure 3 is an exploded perspective view of the piping connection connector according to the first preferred embodiment of the present invention, and Figure 4 is a cross-sectional view of the piping connection connector in a state before the pipe is inserted.

The piping connection connector according to the present invention includes a body 10 provided with an internal space into which the pipe 1 is inserted, that is, an intubation portion 111; a tightening screw (170) screwed to the inner peripheral surface of the distal end of the intubation unit (111) and having an insertion hole into which the pipe (1) is inserted; a cylindrical moving body 250 provided inside the intubation unit 111 and moving toward the front end or the rear end depending on the position of the inserted pipe; an insertion position confirmation ring 300 coupled to the outer peripheral surface of the mobile body 250 through a long hole-shaped through hole 120 and disposed on the outer peripheral surface of the body 10, and moving with the mobile body; Elastic means 110 for pressing the moving body 250 in the tip direction within the intubation unit 111; It consists of a detachable ring 200 that presses the gripping piece 213 of the grab ring 210 provided at the rear end of the tightening screw 170.

The distal end of the body 10 is open, and an intubation portion 111 that can accommodate the pipe to be inserted is formed therein. The intubation unit 111 has an inner diameter corresponding to the outer diameter of the mobile body 250, which will be described later. The rear end of the body 10 may be formed with a threaded portion so that it can be coupled to the valve body or another connection port, or may be a connection portion inserted into another pipe.

In addition, a plurality of through holes 120 communicating with the inner intubation unit 111 from the outer peripheral surface of the body 10 are formed through the body 10.

Inside the intubation unit 111, a cylindrical moving body 250 is provided that moves toward the front end or the rear end depending on the position of the pipe to be inserted, and a fixing groove 259 is formed on the outer peripheral surface of the moving body 250.

In order to ensure that the moving body 250 is positioned at the front end when the pipe 1 is not inserted, an elastic member 110 that presses the rear end surface 253 of the moving body 250 is attached to the intubation unit 111. It is provided inside. The elastic member 110 is preferably a compression spring, and a first step 115 supporting the rear end of the compression spring is preferably formed on the inner surface of the rear end of the intubation unit 111. In addition, a locking protrusion 255 is formed inside the moving body 250 to which the tip of the inserted pipe 1 comes into close contact.

The insertion position confirmation ring 300 protrudes inward through a ring-shaped confirmation part disposed on the outer peripheral surface of the body 10 and the through hole 120 of the body 10, and the insertion position confirmation ring ( It consists of a protrusion 330 fitted into the fixing groove 259 of 250).

With this configuration, when the pipe is inserted into the pipe connection port, the moving body 250 is pushed toward the rear end while the tip of the pipe is in close contact with the stopping protrusion 255 of the moving body 250, and the moving body 250 is pushed to the rear end. When moving in the direction of the central axis of the pipe connection port, the insertion position confirmation ring 300 also moves in the insertion direction, as shown in FIGS. 6 and 7. In order to allow the protrusion 330 to move in the insertion or separation direction within the through hole 120, the through hole 120 is formed in the form of a long hole that is long in the insertion and separation directions. Of course.

Reference numeral 301, which is not explained in the drawings, indicates an auxiliary confirmation ring fixed to the outer peripheral surface of the body 10. If the auxiliary confirmation ring 301 is fixed to the outer peripheral surface of the body 10, the relative position of the insertion position confirmation ring 300, whose position changes depending on the pipe insertion state, can be easily detected visually as well as by touch. . Paint fluorescent paint or attach a luminous film to the outer peripheral surface of the auxiliary confirmation ring 301 and the insertion position confirmation ring 300, or knurl (knurl) the outer peripheral surface of the auxiliary confirmation ring 301 and the outer peripheral surface of the insertion position confirmation ring 300 By performing knurling processing, the separation distance between the two members 301 and 300 can be easily confirmed by feel.

When the mobile body 250 moves within the intubation unit 111, a tightening screw 17 is coupled to the tip of the intubation unit 111 to prevent it from falling out of the body 10.

The tightening screw 17 has a hollow portion with an inner diameter into which a pipe can be inserted, and a male thread portion is formed on the outer peripheral surface. The male thread portion is screwed to the female thread portion formed on the inner peripheral surface of the distal end of the intubation unit 111.

After sequentially inserting the elastic member and the moving body 250 into the intubation unit 111, the tightening screw 170 is tightened to assemble the piping connection port.

Here, in order to firmly maintain the binding state of the pipe (1) inserted into the pipe connection port and facilitate separation, the grab ring (210) provided with the grip piece (213) is attached to the tightening screw (17). It is placed in cross section 173. The grab ring 210 is composed of an annular body ring 211 and a grip piece 213 inclined in one direction on the inside of the body ring 211. Prior Art 2 (Patent Registration No. 10-2278364) It is a configuration that has the same function as that known in (Ho), etc.

The grab ring 210 is provided between the front end surface 251 of the mobile body 250 and the rear end surface 173 of the tightening screw 170. In the embodiment of the present invention as shown in FIG. 6, the mobile body 250 Since 250 moves toward the rear end by inserting the pipe 1, a configuration is needed to ensure that the grab ring 210 is fixed in place. For this purpose, in the piping connection connector of the present invention, a second step 117 is formed inside the intubation unit 111, and the seat ring 220 is arranged to be in close contact with the second step 117, and the tightening screw ( 170), the grab ring 210 is configured to be firmly fixed in position without shaking between the tightening screw 170 and the second step 117.

In addition, the detachable ring 200 for releasing the gripping piece 213 of the grab ring 210 from being engaged with the outer peripheral surface of the pipe is inserted into the hollow portion of the tightening screw 170. The outer diameter of the detachable ring 200 is the same as the inner diameter of the hollow part of the tightening screw, and the inner diameter of the detachable ring 200 is preferably configured to be the same as the outer diameter of the pipe 10 to be inserted.

The detachable ring 200 is provided with a pressing part 201 for pushing up the holding piece 213, and a pressing part 203 that the operator can press with his hand at the opposite end of the pressing part 201. . Additionally, a cutout portion 205 is formed in the detachable ring 200 so that the pressing portion 201 can be easily inserted into the hollow portion of the tightening screw. In addition, a protrusion 202 is formed on the outer peripheral surface of the detachable ring 200, and a separation prevention protrusion 175 corresponding to the protrusion is formed on the inner peripheral surface of the tightening screw 170, so that the detachable ring 200 is When inserted into the hollow part of the tightening screw 170, the detachable ring 200 is prevented from being easily separated from the hollow part of the tightening screw 170.

As shown in FIGS. 6 and 7, when the pipe 1 is inserted or the detachable ring 200 is operated, the gripping piece 213 of the grab ring 210 is opened. At this time, the In order to prevent the gripping piece 213 from interfering with the tip of the mobile body 250, it is particularly desirable to form an inner and outer inclined surface 252 on the inner surface of the tip of the mobile body 250. do. A recess space in which the gripping piece 213 can move is formed by the inclined surface 252.

Figure 8 shows several modified examples of the mobile body 250 according to a preferred embodiment of the present invention. [A] in Figure 8 shows first and second water leak prevention O on the outer and inner peripheral surfaces of the mobile body 250a. It shows that it is provided with rings 131a and 132a, respectively, and [B] in Figure 8 shows that the mobile body 250b can be made of a watertight material. In [B] of Figure 8, the first and second convex portions 131b and 132b are integrally formed on the outer and inner circumferential surfaces of the mobile body 250b without an O-ring for preventing water leakage.

As shown in [A] of Figure 8 and [B] of Figure 8, the mobile body according to the present invention has a fixing groove 259 formed on the outer peripheral surface into which the protrusion 330 of the insertion position confirmation ring 300 is coupled. It is characterized by maintaining watertightness (watertightness between the outer peripheral surface of the pipe (1) and the inner peripheral surface of the mobile body, and watertightness between the inner peripheral surface of the body (10) and the outer peripheral surface of the mobile body) while allowing movement in the insertion or separation direction within the body (10). It is characterized by

In order to prevent the fluid flowing inside the pipe from leaking through the through hole 120, the first leak-prevention O-ring 131a or the first convex portion 131b provided on the outer peripheral surface of the moving body 250 is connected to the fixing groove. It should be located at the rear end of (259).

In an embodiment of the present invention, the through hole 120 is composed of a long hole having a sufficient length to correspond to the distance along which the mobile body 250 is moved. Of course, it is also possible to configure the through hole 120 as a long hole whose length is longer than the moving distance of the mobile body 250.

Since there are many cases where the position of the insertion position confirmation ring 300 must be confirmed by touch, when the insertion position confirmation ring 300 reaches the movement limit position toward the rear end, the moving body 250 is also moved to the maximum position. It is desirable to ensure that . To this end, in the embodiment according to the present invention, a close contact surface 116 is further formed on the inner surface of the intubation unit 111 between the through hole 120 and the first step 115, so that the pipe 1 When the insertion is completed, the rear end surface 253 of the moving body 250 is in close contact with the contact surface 116, and the insertion position confirmation ring 300 is attached to the confirmation portion 103 of the body 10. It is constructed to adhere closely. With this configuration, not only is there a small possibility that the protrusion 330 of the insertion position confirmation ring will fall out of the fixing groove 259 of the moving body 250, but also the protrusion 330 of the insertion position confirmation ring is not subject to excessive force. It is possible to prevent it from being applied, and the watertightness can be further improved by adding a watertight pad (not shown) between the contact surface 116 and the rear end surface 253 of the mobile body 250.

In the above description of the present invention, the preferred embodiments have been mainly described with reference to the accompanying drawings. However, the present invention can be modified, changed and replaced in various ways by those skilled in the art, and such modifications, changes and substitutions are within the scope of protection of the present invention. It should be interpreted as belonging.

1: pipe 10: body
111: intubation unit 110: elastic means
120: long hole 170: tightening screw
200: Removal ring 210: Grab ring
250: Moving object 300: Insertion position confirmation ring
301: Auxiliary confirmation ring

Claims (4)

A body (10) in which an intubation part (111) having an inner diameter larger than the outer diameter of the pipe (1) to be inserted is formed, and a first step (115) is provided at the rear end of the intubation part (111);
A tightening screw (170) coupled to the inner surface of the distal end of the intubation unit;
a grab ring (210) located on the rear end surface (173) of the tightening screw (170) and having a gripping piece (213) inclined in the insertion direction of the pipe (1);
A plurality of through holes 120 penetrating the body 10 to communicate with the intubation unit 111 on the outer peripheral surface of the body 10;
an insertion position confirmation ring 300 having a protrusion 330 protruding into the intubation unit 111 through the through hole 120 and surrounding the outer circumference of the body;
The inner circumferential surface is closely coupled to the outer circumferential surface of the pipe 1, and the outer circumferential surface is tightly coupled to the inner circumferential surface of the intubation portion 111 of the body 10, and a locking protrusion 255 to which the tip of the pipe 1 is in close contact is located on the inner circumferential surface. A moving body 250 provided at the rear end and having a fixing groove 259 formed on the outer peripheral surface to accommodate the protrusion 330 of the insertion position confirmation ring 300;
Elastic means 110 provided between the first step 115 and the rear end surface 253 of the mobile body 250 to press the mobile body 250 when the tightening screw 170 is locked;
The grab ring 210 is provided with a pressing portion 201 in contact with the gripping piece 213 and has a protrusion 202 on the outer peripheral surface, the inner peripheral surface is in close contact with the outer peripheral surface of the pipe 1, and is attached to the tip of the body. By being composed of a detachable ring 200 having an exposed cylindrical pressing portion 203,
When the pipe (1) is inserted, the moving body (250) and the insertion position confirmation ring (300) are moved to the rear end to confirm the insertion state of the pipe, and when the detachable ring (200) is pressed towards the rear end, the elastic means (110) The pipe (1) is easily separated due to the elastic restoring force of and at the same time, the insertion position confirmation ring (300) is moved to the original position at the distal end together with the moving body (250).
In order to prevent the gripping piece 213 of the grab ring 210 from interfering with the front end surface of the mobile body 250 when the mobile body 250 is moved to the original position toward the front end, the inner surface of the front end of the mobile body 250 is provided with an inclined surface 252;
In order to prevent the detachable ring 200 from being separated from the piping connection port, a separation prevention protrusion 175 corresponding to the protrusion 202 of the detachable ring 200 is formed on the inner peripheral surface of the tightening screw 170. A piping connection port.
According to paragraph 1,
The through hole 120 is made of a long hole having a length equal to or longer than the moving distance of the moving body 250;
A close contact surface 116 is formed on the inner surface of the intubation unit 111 between the through hole 120 and the first step 115;
When insertion of the pipe 1 is completed, the rear end surface 253 of the moving body 250 is in close contact with the contact surface 116, and the insertion position confirmation ring 300 is an auxiliary confirmation ring of the body 10. A piping connection connector configured to be attached to (103).
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