KR20110025296A - Pipe pressing apparatus - Google Patents

Abstract

PURPOSE: A pipe connecting device is provided to enable a pressing block to be easily coupled/disassembled by simple disassembling of a coupling pin if the pressing block is damaged. CONSTITUTION: A pipe connecting device(900) comprises a gemeled type of left and right nippers(100,100'), a compression spring(120), a connecting frame(200), a gemeled type of block coupling pieces(400) and four pressing blocks(500). The compressed spring is inserted into the center of the left and right nippers and applies compression force. The connecting frame makes tight contact with the top and the bottom of the left and right nippers. The connecting frame is coupled to a fixed pin by a fastening ring. The block coupling pieces make tight contact with a ⊂-shape groove of each head of the left and right nippers. The pressing blocks are coupled to the block coupling pieces and press a pipe.

Description

PIPE PRESSING APPARATUS}

The present invention relates to a pipe connecting device for crimping and connecting pipes, and in particular, the crimping blocks can be slidably coupled to each other to reduce frictional force, so that the pipe connecting device can be used with low strength, as well as the block coupler and the crimping block. It has a structure that is separated from each other, so it is easy to replace due to the breakage of the crimping block due to long-term use, and the members used for the left, right tongs, connecting frame, block coupler, and crimping block products are made of aluminum to provide a lightweight product. The present invention relates to a pipe connecting device that can improve the efficiency of work by an operator.

The conventional pipe connecting device used for crimping an example of a stainless steel pipe or pipe fittings is often manufactured using iron, and the worker using the pipe connecting device can easily work due to the high weight of the pipe connecting device. It has the disadvantage of being difficult to proceed.

In particular, the conventional pipe connecting device is made in the form of tongs in most cases, a plurality of crimping blocks are coupled to the head position of the tongs so that the crimping surface of the crimping block is in close contact with the stainless steel pipe or pipe fittings to perform a crimping operation.

Accordingly, when the pipe connecting device compresses the pipe, the compressive force acts toward the center of the pipe, and at this time, a friction force is generated in the crimping block constituting the pipe connecting device, thereby compressing the pipe.

However, the pipe connecting device is easy to replace the product when the crimping block is broken because the coupling tool for fixing the crimping block to the tongs is welded when the crimping block is damaged during work or long-term use. It has a disadvantage.

As a result, difficulties arise in manufacturing the pipe connecting device.

The present invention has been made in view of the above-described contents, and the present invention has a structure in which two sets of block couplers coupled to the pressure block are coupled / disassembled to the head dish grooves of the left and right clamps. Compression block is combined / disassembled according to disassembly, and left, right tongs, connecting frame, block fittings, and crimp block are made of aluminum, so the total weight is significantly lighter than that of conventional pipe connecting device It is an object of the present invention to provide a pipe connecting device that can improve the ease of use.

The present invention has been made in view of the above-described object, the present invention, grooves 1, 2 formed with grooves toward the center of the thickness is formed on both sides of the fixing pin holes penetrated to the center position of the frame body and the fixing pin holes are formed, Spring grooves are formed on one side of the body, and a stepped jaw is formed at the head and the center of the body of the frame body. A semi-circular groove is formed on the side surface where the spring groove of the frame body is formed. ;

The left and right tongs are elongated compression springs inserted into the spring grooves to transfer the spring force in a state in which the head dishing grooves face each other;

A connection frame which is in close contact with the upper and lower surfaces of the left and right tongs, the fixing pin is penetrated to the fixing pin hole, the fixing ring is penetrated and the fastening ring is fastened to the protruding ring groove to couple the left and right tongs to the T-shaped shape;

Two sets of members to be inserted into the head dish groove of the left and right tongs, and a triangular protrusion and a square protrusion are formed on one side and the other side of the coupling body, and a step is formed at the position where the triangular protrusion and the square protrusion are connected. A coupling groove body, a triangular stone jaw, a square groove, a spring groove, a coupling pin hole, and a bolt hole are formed, and a spring coupling, a coupling pin hole, a spring in the bolt hole, a coupling pin, and a bolt coupling block;

When four are in close contact with each other, four are pressed into a circle to squeeze the pipes, and two are joined to the block coupler, and a pressing surface is formed on one side, and the other side of the rear is cut to form a plane, and a spring groove is formed on the other side of the rear and cut. Compression block formed with a long coupling pin elliptical hole in a predetermined position; comprising, the pipe coupling device is characterized in that the structure, which can be coupled to and separated from the head of the left, right tongs;

In addition, the block coupler is formed to be inclined in an oblique line to narrow the triangular stone jaw toward the center, the two compression blocks are coupled, the square stone jaw is formed protruding rear and side to the groove on the other side of the coupler body Since it is formed is in close contact with the head of the left, right tong, pipe connecting device, characterized in that the bolt rod is fastened to the bolt hole of the square stone jaw; is provided.

Hereinafter will be described the effects generated in the pipe connecting apparatus of the present invention.

First, the left, right tongs, connecting frame, block fittings, and crimp blocks are made of aluminum, so the total weight is significantly lighter than that of the conventional pipe connecting device, so that the operator can improve the workability for crimping the pipe. You can get the effect.

Secondly, it has a structure in which two sets of block couplers coupled to the pressure block are combined / disassembled in the head dish grooves of the left and right tongs. Even when the crimping block is broken, the crimping block can be easily combined / disassembled by disassembling the coupling pin.

Third, while the pipe connecting device used in the prior art generally requires a large pressing force, while the pipe connecting device of the present invention can apply a large friction force even with a small force in the pipe pressing operation, it is possible to achieve an improvement in the pipe pressing operation. Of course, this may facilitate the coupling / disassembly of the left, right tongs, block coupler and the compression block, and particularly complicated manufacturing process is unnecessary when manufacturing a conventional pipe connecting device.

Hereinafter, with reference to the accompanying drawings will be described a specific content for the practice of the invention.

The terms or words used in this specification and claims are not to be construed as being limited to the common or dictionary meanings, and the inventors may appropriately define the concept of terms in order to explain their invention in the best way. Based on the principle, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention, and will not obscure the main technical gist of the present invention or detailed description of well-known technical contents.

1 is a perspective view of a pipe connecting device of the present invention, FIG. 2 is a view showing a state of use of the pipe connecting device of the present invention, FIG. 3 is a view showing an exploded state of the pipe connecting device of the present invention, and FIG. 4 is a pipe connecting device of the present invention. 5 is an exploded perspective view illustrating a state in which a block coupler and a crimping block are coupled to each other, FIG. 5 is an exploded perspective view illustrating a state in which left and right tongs and a block coupler and a crimping block are coupled to constitute a pipe connecting device of the present invention. Figure 2 is a view showing a state in which the crimping block coupled to the left and right tongs of the pipe connecting device is open.

As can be seen in Figures 1 and 2, the pipe connecting device 900 is used to connect a small diameter pipe fitting (Y) made of metal and stainless steel pipe (X).

As shown in FIG. 3, the pipe connecting device 900 is inserted at a position in the middle of the length of two sets of left and right tongs 100, 100 'and left and right tongs 100 and 100' to compress the force. Compression spring 120 to be applied, the connection frame 200, left and right tongs (100) that are in close contact with the upper and lower surfaces of the left, right tongs (100) (100 ') in a pair of two, coupled with a fixing pin It consists of two sets of block coupler 400, which is in close contact with the head dish groove of the (100 '), four compression blocks 500 and a plurality of members coupled to the block coupler 400 for crimping the pipe. .

Left and right tongs (100, 100 '), connecting frame 200, block coupler 400, crimp block 500 is made of aluminum.

Left and right tweezers (100, 100 ') grooves 1, 2 formed with grooves toward the center of thickness on both sides of the fixing pin hole 111 and the fixing pin hole 111 formed in the center position of the frame body 110 ( 112 and 113 are formed, the spring groove 114 is formed on one side of the frame body 110, step 115 is formed at the head and the center of the body of the frame body 110, respectively, the frame body 110 Semicircular groove 116 is formed on the side surface of the spring groove 114 is formed.

Left and right tongs (100, 100 ') is formed in the frame body 110, grooves 1, 2 (112, 113) is to reduce the overall weight.

The left and right tongs (100, 100 ') is a long compression spring 120 is inserted into the spring groove 114 in a state where the head dishing grooves face each other, the spring force is transmitted, The circular pin 130 is placed in close contact with the semicircular groove 116.

In addition, in the state in which the connecting frame 200 is in close contact with the left and right tongs (100, 100 '), the fixing pins 220 pass through the fixing pin holes 111 and 211, and the fixing pin holes 211 are provided. Fastening ring 230 is fastened to the upper and lower portions of the left and right tongs (100, 100 ') and the connecting frame 200 is coupled.

The fixing pin 200 has a ring groove formed in the upper and lower portions in the form of a rod (ROD), and the fastening ring 230 is fastened.

The connecting frame 200 is formed in a T-shape, but the square plate is integrally formed with the central lower surface of the straight plate and formed in a T-shape, and two fixing pin holes 211 are formed through the straight plate and one circular hole is formed in the square plate. This is formed through.

At this time, the left and right tongs (100, 100 ') is connected to the frame 200 is connected to the fixing pins 220 on the upper and lower surfaces, even if the circular pin 130 is located in the semicircular groove 116 Departure is prevented.

The block coupler 400 is a member inserted into the head dish groove of the left and right tongs 100 and 100 ', and the triangular protrusion 410 and the square protrusion 420 are roughly formed at one side and the other side of the joint body. Protrudingly formed, the stepped jaw 430 is formed at the position where the triangular protrusion 410 and the square protrusion 420 are connected, the spring groove 411 in the coupling body, triangular protrusion 410, the square protrusion 420, Coupling pin hole 412, bolt hole 413 is formed.

The triangular protrusion 410 of the block coupling member 400 is formed to be inclined in an oblique line to narrow the width toward the center, and the square protrusion 420 of the block coupling tool 400 is formed to protrude rearward and to the side. The dish groove is formed on the other side of the coupler body.

Bolt rod 450 is in the form of a rod (ROD), the thread is formed on the outer peripheral surface and the circular ball 451 is inserted into the rod is formed integrally.

That is, the block coupler 400 is in close contact with the head of the left, right side tongs (100, 100 '), the side where the circular ball 451 is located when the bolt rod 450 is coupled to the bolt hole 413 Squeezed, but the other side groove of the block coupler 400 is in close contact with the head of the left, right tongs (100, 100 ').

As such, the block coupler 400 has a structure that is coupled to and separated from the head of the left and right tongs (100, 100 ').

Compression block 500 is a pair of four, one block coupler 400 is coupled to each one by two, the compression block 500 is a four when the contact is in a circle to press the pipe, the compression block 500 is one side The pressing surface is formed in the other rear is cut to form a plane.

Each pressing block 500 has a spring groove 511 is formed on the other side of the rear and the coupling pin elliptical hole 512 is formed long in the cut position.

That is, the compression block 500 is coupled to the block coupling hole 400 is coupled to the coupling pin 440 to the coupling pin ellipse hole 512, the spring groove formed in the coupling body of the block coupling hole 400 ( Since the spring 460 is inserted into the 411, the pressing block 500 is flowed by the length of the coupling pin elliptical hole 512.

The operation of the pipe connecting apparatus 900 described above will be described.

When the pipe connecting device 900 is crimped to the pipe fitting (Y) and the stainless steel pipe (X) as shown in Figure 2 when the hydraulic force is transmitted in the direction of the arrow through the push rod, the left and right tongs are handled upwards as shown in the direction of the arrow and It moves downward while moving, which causes the crimping operation on the pipe fitting (Y) and the stainless steel pipe (X) when the crimping block is tightened toward the center of the stainless steel pipe in the direction of the arrow.

Referring to the coupling state of the pipe connecting device 900, the compression spring 120 is inserted into the left, right tongs (100, 100 ') and the upper and lower surfaces of the left and right tongs (100, 100') In the connection frame 200 is coupled to the fixing pin 220 by the spring force of the compression spring 120 can be operated as shown in the arrow direction of FIG.

In addition, as shown in FIG. 4, the two coupling blocks 500 are coupled to one block coupling member 400 so that the block coupling member 400 is coupled to the left and right clamp tongs 100 and 100 ′. do.

At this time, the crimping block 500 is coupled to the block coupler 400 by the coupling pin 440, the pipe joint in the relation that the spring 460 is coupled to the block coupler 400 and the crimping block 500 When pressing the iron and stainless pipe crimping block 500 is moved and moved as far as the distance of the coupling pin ellipse hole 512 is pressed.

1 is a perspective view of a pipe connecting device of the present invention,

2 is a view showing a state of use of the pipe connecting device of the present invention,

Figure 3 is a view showing an exploded state of the pipe connecting device of the present invention,

4 is an exploded perspective view illustrating a state in which a block coupler constituting the pipe connecting device and a crimping block are coupled to each other;

Figure 5 is an exploded perspective view showing a state in which the left, right tongs and block coupler, the compression block constituting the pipe connection device of the present invention,

6 is a view showing a state in which the crimping block coupled to the left and right tongs of the pipe connecting device of the present invention is opened.

<Description of the symbols for the main parts of the drawings>

100,100 '; Left and right tong 120; Compression spring

200; Connecting frame 220; Push pin

230; Fastening ring 400; Block coupler

440; Binding pin 450; Bolt rod

460; Spring 500; Crimp Block

900; Pipe connection

Claims (4)

In the center of the frame body 110, the fixing pin hole 111 penetrates and grooves 1, 2 (112) and 113 having grooves are formed on both sides of the fixing pin hole 111 to form a thickness center, and the frame body ( A spring groove 114 is formed at one side of the 110 and a stepped 115 is formed at the head and the center of the body of the frame body 110, and a semicircle at the side surface at which the spring groove 114 of the frame body 110 is formed is formed. Left and right tongs (100, 100 ') having a groove portion 116 is formed and the circular pin 130 in close contact with the semi-circular groove portion 116; Left and right tweezers (100, 100 ') is a long compression spring (120) is inserted into the spring groove 114 to transmit the spring force in a state where the head dishing grooves face each other; It is in close contact with the upper and lower surfaces of the left and right tongs (100, 100 '), the fixing pin 220 penetrates the fixing pin holes 111 and 211, penetrates the fixing pin hole 211, and a fastening ring in the protruding ring groove ( 230 is fastened to the left, right tong coupler (100, 100 ') coupled to form a T-shaped connecting frame 200; The left and right tongs (100, 100 ') of the two sets of members to be inserted into the head recess groove, triangular protrusion 410 and the square protrusion 420 is formed on one side and the other side of the coupling member body, triangular A stepped jaw 430 is formed at a position where the stone jaw 410 and the square stone jaw 420 are connected to each other, and a coupling groove, a triangular stone jaw 410, and a spring groove 411 and a coupling pin hole 412 in the square stone jaw 420. , The bolt hole 413 is formed, the spring groove 411, the coupling pin hole 412, the bolt hole 413, the spring 460, the coupling pin 440, the block coupling member is coupled to the bolt rod 450 400; When four are in close contact with each other, four are pressed into a circle to squeeze the pipes, but two are coupled to the block coupler 400, and a pressing surface is formed on one side and the other side is cut off to form a plane, and a spring groove on the other rear side. 511 is formed and the compression block 500 is formed in the coupling pin oval hole 512 is formed long in the cut position; including, block coupling sphere 400 of the left, right side of the forceps (100, 100 ') Pipe connection device, characterized in that the structure that can be coupled to and separated on the head. According to claim 1, Block coupling hole 400 is formed to be inclined in an oblique diagonal line so that the triangular protrusion (410) is narrow toward the center, the two compression blocks 500 are coupled, the square protrusion (420) ) Is formed in the rear and side protruding grooves are formed on the other side of the coupling body body is in close contact with the head of the left and right tongs (100, 100 '), bolts to the bolt hole 413 of the square stone jaw 420 Pipe connection device, characterized in that the rod 450 is fastened. According to claim 1 or 2, the bolt rod 450 is in the form of a rod (ROD), the thread is formed on the outer peripheral surface and the circular ball 451 is inserted into the rod is integrally formed, the circular ball 451 is formed Side, left, right side of the pipe clamping device, characterized in that the close contact with the head of the forceps (100 '). The method of claim 1, wherein the connecting frame 200 is formed in a T-shape, the square plate is integrally molded to the central lower surface of the straight plate is formed in a T-shaped and two fixing pin holes 211 through the straight plate is formed One circular hole is formed through the square plate, Block coupling hole 400 and the compression block 500 is that the spring 460 is inserted into the spring groove 411 formed in the coupling body to the compression block 500 flows by the length of the coupling pin elliptical hole 512 Characterized by a pipe connection.

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