KR101003538B1 - Plastic pipe manual cutter - Google Patents

Abstract

The present invention relates to a mechanism for manually cutting a plastic pipe connected to a connection socket for pipe connection in various piping operations.
The present invention implements a new type of cutting tool having a horizontal support that can hold the horizontal state of the pipe when manually cutting the plastic pipe connected to the connecting socket, thereby cutting the pipe in a horizontally supported state. In this way, the pipe cutting surface can be cut smoothly in a straight line, while the marking portion is provided on the inner circumferential surface of the horizontal support which can support the horizontal state of the plastic pipe, so that the pipe can be cut in the circumferential direction without rotating the cutter. It is possible to simplify the marking work such as marking easily, and by providing two marking parts at a certain distance in the horizontal support for supporting the plastic pipe, the sleeve tube is made by using two lines of marking lines displayed on the pipe. Providing a plastic manual cutter to easily check whether the .

Description

Plastic pipe manual cutter {Plastic pipe manual cutter}

The present invention relates to a plastic pipe manual cutter, and more particularly, to a mechanism for manually cutting a plastic pipe connected to a connection socket for pipe connection in various piping operations.

In general, pipes are widely used to transport fluids or gases such as tap water and oil.

For example, when constructing an apartment or a house, piping for water, heating, etc. is constructed, and plastic pipes that are easy to handle are mainly used for such piping construction.

Normally, pipes are manufactured and distributed to certain standards due to transportation or handling restrictions.

Therefore, when the pipe is installed longer than the standard length of the pipe or when the pipe is bent at an angle, the connecting socket is used, and a grip ring for firmly holding the pipe inside the socket is built in. Type of connection sockets are being used mainly because of their ease of connection and easy handling.

For example, Korean Utility Model Registration No. 20-0443803 discloses a connection socket in which a grip ring is incorporated.

The connection socket 100 has a rubber O-ring 50 for preventing leakage of a portion to which the pipe is connected, a grip ring 10 for preventing the pipe from being pulled out, and a washer 40 for supporting the grip ring 10. Are sequentially installed and connected, the pipe is inserted into the connection socket, the grip ring binds the pipe outer diameter connected at this time to fix the pipe so as not to fall out.

In addition, the sleeve is fitted to the distal end of the pipe to be inserted into the connection socket, so that the connection is made in the form of a double pipe that prevents pipe deformation due to hot water, etc. In order to ensure that the end of the pipe is oiled and inserted.

On the other hand, when constructing pipes for water or heating when building buildings such as apartments or houses, the pipe work is mainly performed using plastic pipes. At this time, the length of the pipe is needed by using a manual cutter in the form of scissors. You work while cutting.

As an example of such a manual cutter, Korean Utility Model Registration No. 20-0348762 discloses a plastic pipe manual cutter which indicates a connection socket insertion length.

However, the plastic pipe manual cutter has several disadvantages as follows.

First, since there is no means for supporting the pipe when cutting the pipe, the worker must cut the pipe by pressing the cutter with the other hand while holding the pipe in one hand, so that the pipe cannot be accurately leveled. As a result, the cutting surface is not cut in a straight line, and an error occurs in the insertion length, and thus there is a problem that causes leakage after pipe construction.

Second, when the wall or ceiling plumbing work, the cutting work is displayed while the insertion length is displayed on the pipe inserted into the connection socket, wherein one end of the pipe to be connected is fixed to the other connection socket.

Therefore, in order to mark in the circumferential direction of the pipe with a conventional cutter, the pipe cannot be rotated, and the cutter must be rotated inevitably. The space (distance) between the connecting socket and the wall or ceiling surface is not so large that the wall or It hangs on the ceiling, and in the end, marking work is very inconvenient, and there is a limit to marking in the circumferential direction of the pipe.

Third, when the pipe is connected to the connecting socket, the sleeve should be fitted at the tip of the pipe, but the operator often inadvertently inserts the sleeve into the connecting socket without inserting the sleeve into the pipe, which also causes leakage after construction. Therefore, it will work to check this manually.

However, since the conventional cutter can cut the pipe with only one line of marking, when the supervisor checks the state of the sleeve after the connection socket is connected, only one line of the sleeve is inserted. There is a disadvantage that you can not check whether the connection.

Accordingly, the present invention has been made in view of the above, and when cutting the plastic pipe connected to the connection socket manually, a new type of cutting tool having a horizontal support that can hold the horizontal state of the pipe It is an object of the present invention to provide a plastic pipe manual cutter which can cut a pipe in a horizontally supported state, and thus can cut a pipe cut surface smoothly in a straight line.

In addition, the present invention is provided with a marking portion on the inner peripheral surface of the horizontal support that can support the horizontal state of the plastic pipe, it is possible to easily mark in the circumferential direction of the pipe without rotating the cutter, such as plastic that can simplify the display operation Another object is to provide a pipe manual cutter.

In addition, another object of the present invention is to provide two marking portions at a certain distance in the horizontal support for the support of the plastic pipe, to facilitate the fitting of the sleeve tube by using two lines of display lines displayed on the pipe. To provide a plastic manual cutting machine that can be identified.

Plastic pipe manual cutter provided by the present invention in order to achieve the above object is a mechanism for cutting the plastic pipe manually made of a tongs, a cutter for cutting a pair of handles and pipes, while being located on one side of the cutter The opening is formed in the shape of a cut along the longitudinal direction and comprises a horizontal support in the form of a tube that can accommodate tightly around the pipe, so that the horizontal support to support the pipe horizontally In the state, there is a feature that can cut the pipe cutting surface in a straight line.

Here, the plastic pipe manual cutting machine is provided with one marking portion formed at the inner circumferential surface of the horizontal support for horizontal support of the pipe or two marking portions at a predetermined distance, so that marking can be made in the circumferential direction on the outer circumferential surface of the pipe together with the pipe cutting. It is desirable to.

In addition, the plastic pipe manual cutter is provided with an oil reservoir, for example, an oil reservoir, for example, in which oil is contained in a pipe that can be immersed in the pipe cutting part, and an operator is uncomfortable carrying the oil reservoir separately. It is desirable to be able to solve the problem.

Plastic pipe manual cutter provided by the present invention has the following advantages.

First, the plastic pipe can be cut in a state where the pipe is placed horizontally in the horizontal support when cutting the plastic pipe, so that the cut surface of the pipe can be cut smoothly in a straight line, thus eliminating the error of the insertion length of the pipe, You can clear your concerns.

Second, the marking part is provided on the inner circumferential surface of the horizontal support for horizontal support of the plastic pipe so that one or two lines of marking lines are naturally marked on the circumferential surface of the pipe at the same time, so that the marking work can be performed without rotating the cutter as before. At the same time, it is easy to check whether the sleeve is inserted by using two lines of display lines.

Third, since the oil supply container is attached to one side of the cutter, it can eliminate the inconvenience of having to carry the oil supply container as before.

1 is a perspective view showing a plastic pipe manual cutting machine according to an embodiment of the present invention
Figure 2a, 2b, 2c, 2d is a perspective view showing a state of use of the plastic pipe manual cutter according to an embodiment of the present invention
Figure 3 is a perspective view showing a plastic pipe manual cutter according to another embodiment of the present invention

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a plastic pipe manual cutter according to an embodiment of the present invention.

As shown in FIG. 1, the manual cutter has a structure capable of cutting the pipe in a horizontally supported state. Accordingly, the pipe cutting surface can be cut smoothly in a straight line, resulting in an error in the pipe insertion length. Problems such as occurrence can be completely eliminated.

To this end, the manual cutter is in the form of a pair of tongs including a pair of handles (10a, 10b) that can be gripped by the operator by hand, and a cutter (11) that can substantially cut the pipe.

Here, the cutter 11 is attached to the front end of one of the handle (10a), it is possible to cut the pipe located between the pair of the front end of the handle (10b) of the other.

Then, the cutter 11 after cutting the pipe can enter the cutter accommodation groove 18.

In particular, the front end of the handle (10b) is provided with a horizontal support 13 of the tubular shape located on one side of the cutter 11, the horizontal support 13 at this time while accommodating a certain length of the pipe side by side It serves to level the pipe.

To this end, the horizontal support 13 is positioned at an angle of 90 ° with respect to the longitudinal direction of the cutter, thereby supporting the pipe in a horizontal state while receiving the pipe around tightly.

The opening 12 of the shape cut along the longitudinal direction is formed on the upper portion of the horizontal support 13, it is possible to insert the pipe through the opening 12 at this time.

And, both ends of the opening portion 12 in the horizontal support 13, the curved pipe entry port 15, for example, the pipe entry port of the form in which the upper end is gently bent outward when viewed in the cross section in the width direction 15 are formed respectively, and the pipe inlet 15 at this time plays a role of guiding pipe insertion and is opened by its elasticity when the pipe is inserted, and can be restored again after the pipe insertion.

Here, the horizontal support 13 may be applied to a resin tube, or a stainless steel tube, may be manufactured integrally with the cutter, or may be manufactured in a removable structure to the cutter.

Therefore, the pipe can be fixed in a horizontal state by simply inserting the pipe into the horizontal support 13 when cutting the pipe, that is, the pipe can be fixed horizontally in the up-down direction and the front-back direction while making the pipe perpendicular to the cutter body. It is possible to cut the pipe cutting surface in a straight line.

In addition, the manual cutter is provided with a marking portion 14 capable of marking a display line (line indicating the length of the connection socket insertion) on the pipe, the marking portion 14 at this time is the inner peripheral surface of the horizontal support 13 Since it is formed along the entire circumference, it is possible to provide the advantage that the marking can be performed at one time in the circumferential direction of the pipe without rotating the cutter.

That is, when the pipe is seated in the horizontal support 13, the pipe peripheral surface is in contact with the marking portion 14 disposed along the circumference of the inner peripheral surface of the horizontal support 13 so that the marking can be made naturally. Therefore, the marking operation can be facilitated without rotating the cutter, and as a result, the inconvenience of having to mark with a pen while rotating the cutter can be eliminated.

Here, the marking portion 14 is a rubber used in a general stamp, it is possible to apply a rubber that can adsorb the ink.

In particular, the marking portion 14, as shown in Figure 3, may be provided with two located at a predetermined distance in the longitudinal direction on the inner circumferential surface of the horizontal support 13, so that only one pipe cut Two display lines can be marked at a time.

When the pipe is cut in two lines and connected to the connecting socket, if both lines are visible outside the connecting socket, it can be determined that the sleeve is inserted, and one line is visible outside the connecting socket. It can be judged that the sleeve tube is not in the state.

Therefore, in the case of confirming the pipe connection state of the connection socket side after the piping construction, the supervisor can easily check whether the sleeve tube is inserted by simply checking the number of display lines visible to the outside of the connection socket.

That is, it is easy to confirm whether the supervisor is connected with the sleeve tube fitted after the pipe construction.

In addition, the manual cutter of the present invention is provided with an oil reservoir (16), there is an advantage that the oil can be buried by putting the cut portion (pipe insertion portion) immediately after the pipe cut into the oil reservoir (16).

The oil reservoir 16 may be installed at the coupling portion for the hinge connection of the handle (10a, 10b), it may be made in the form of the oil-containing sponge (17).

Accordingly, the oil can be easily replenished by replacing the sponge 17.

In other words, in the past, the worker had to carry the oil supply container separately from the cutting machine, and the pipe was often forcibly connected because the oil supply container was not prepared. The grip ring and the like may be broken, causing leakage.

However, the cutting machine of the present invention is not only easy to handle because the oil reservoir 16 is integrally mounted on one side of the cutter, it is easy to bury the oil after cutting the pipe, and can always be buried in the pipe cutting oil Since conditions are provided, it is possible to completely eliminate the problems caused by the connection without oil.

Therefore, the method of cutting the plastic pipe using the manual cutter configured as described above is as follows.

Figure 2a to 2d is a perspective view showing a state of use of the plastic pipe manual cutter according to an embodiment of the present invention.

As shown in Figs. 2a to 2d, the cutter 10 is lifted up by spreading the handle 10a of the manual cutter, and then the pipe 100 is inserted into the horizontal support 13 at the tip of the manual cutter.

At this time, the pipe 100 inserted and seated in the horizontal support 13 is fixed in a horizontal state by the adhesion of the horizontal support 13.

In addition, one or two display lines are marked on the circumferential surface of the pipe 100 while the pipe 100 is inserted and seated in the horizontal support 13.

In this state, the pipes 100 are cut by the cutter 11 by pressing the handles 10a and 10b. In this case, since the pipe 100 is supported in a horizontal state by the horizontal support 13, the pipe cut surface is It can be cut smoothly in a straight line.

After the cutting of the pipe 100, the cut portion is immediately put in the oil reservoir (16) to be filled with oil, and then connected to the connection socket can be completed pipe connection work.

In the state where the connection of the pipe to the connection socket is completed, the marking marking of the pipe 100 coming out of the connection socket is checked, and when two lines are visible, it is possible to confirm whether the sleeve tube is inserted and connected.

As described above, the manual cutter of the present invention can cut in a state in which the pipe is supported horizontally, so that the pipe cutting surface can be cut in a straight line, thus completely eliminating the problem of an error in the pipe insertion length. It is possible to fundamentally solve the cause of water leakage after piping construction.

10a, 10b: Handle 11: Cutter
12: opening 13: horizontal support
14: marking unit 15: pipe entry port
16: oil reservoir 17: sponge
18: cutter receiving groove

Claims (5)

A mechanism for manually cutting plastic pipes in the form of tongs, comprising a pair of handles (10a, 10b) and a cutter (11) for cutting a pipe, while being located on one side of the cutter (11) in the longitudinal direction The opening 12 is formed along the cut portion is formed and further comprises a horizontal support 13 of the tubular shape that can accommodate the pipe circumference closely, the horizontal support 13 for the horizontal support of the pipe The inner circumferential surface of the plastic pipe manual cutting machine, characterized in that it is provided with one marking or two marking portions (14) at a predetermined distance in the circumferential direction of the pipe.
delete The method according to claim 1, wherein both ends of the opening 12 in the horizontal support 13 is formed with a curved pipe inlet 15 for guiding the insertion of the pipe while being opened or restored by its elasticity. Plastic pipe manual cutter, characterized in that. The plastic pipe manual cutter as set forth in claim 1, wherein the coupling portion for hinge connection of the handles (10a, 10b) is provided with an oil reservoir (16) for burying oil in the cut portion of the pipe.
The plastic pipe manual cutting machine according to claim 4, wherein the oil reservoir (16) is formed in a form in which an oil-carrying sponge (17) is contained, so that oil supplementation is possible by sponge replacement.

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