KR100685802B1 - Pipe press tool - Google Patents

Abstract

A pipe press tool is provided to manufacture a surface which is not in contact with a stainless pipe by using an aluminum material to reduce a weight of the pipe press tool. A pipe press tool includes support shafts(100,100'), a stationary shaft(200), a hinge pin(300), inserts(400,400'500,500'), a spring pin(600), and a spring. The support shafts have a hinge hole and a spring pin hole, and a projection formed at one side of a round body. The stationary shaft has "C" shaped grooves at both longitudinal sides of a stationary body to pass through a hinge hole formed at a vertical connection part. The hinge pin has a groove into which a compression ring is inserted. The inserts have inner plate parts and side plate parts. The spring pin passes through the spring pin hole and the slit hole of the inserts to be fixed thereto. The spring is hooked to the projections of the support shafts and the inserts by hooks.

Description

Pipe Crimping Tool {PIPE PRESS TOOL}

1a, b is a view showing a conventional pipe crimping tool,

Figure 2a, b is a view showing another conventional pipe crimping tool,

3 is a front view of the pipe crimping tool of the present invention;

4 is a perspective view of the present invention pipe crimping tool,

5 is an exploded perspective view of a pipe crimping tool of the present invention;

Figure 6 is an exploded perspective view of another pipe crimping tool of the present invention.

<Description of Symbols for Main Parts of Drawings>

100,100 '; Support shaft 1,2 110: rounding body

120: handle portion 200: fixed shaft

300: hinge pin 350: compression ring

400,500: Insert 1,3 400 ', 500': Insert 2,4

600: spring pin 650: spring

700,700 ': pipe crimping tool

The present invention relates to a pipe crimping tool capable of compressing both pipes by pressing the outer circumferential surfaces of several stainless pipes having different diameters. In particular, the present invention provides a lightweight product for solving the problems of conventional heavy products. It relates to a pipe crimping tool developed to provide.

In general, a fastening tool for crimping in a state in which a metal ring and a sealing material is inserted into a metal pipe having different diameters has been studied in various forms.

That is, the fastening tool which extends and joins metal pipes, such as a thin stainless steel pipe, in the longitudinal direction is used when joining indoor and outdoor piping in the longitudinal direction.

In this case, the connection work through the pipe crimping tool is inserted into the large diameter pipe and then the insertion part is crimped together.

As the use of such a pipe crimping tool increases, a fundamental problem arises.

Figure 1a, b is a view showing a conventional pipe crimping tool.

As can be seen in Figure 1a, the center portion of the pair of guide plates 31, 32 rotatably coupled to the hinge 33, one side of the upper guide plate 31 and one side of the lower guide plate 32 A plurality of pressing dies 34 are provided on the square recesses 31a and 32a formed at the upper end to expand both guide plates 31 and 32 on the other side of the guide plates 31 and 32. When a large diameter pipe located between each of the pressing dies 34 by rotating the one side of each guide plate 31, 32 and the pressing dies 34 in the retracted direction around the hinge (33). 22) there is a form of pressing the outer peripheral surface.

In addition, as can be seen in Figure 1b, in the construction of the pipe crimping fastening tool 10, the fixed roller 11 is fixed to the front end of the operation cylinder 18, the extension roller 19 is installed freely lifting, the center portion, An extension guide inclined surface 12b corresponding to the expansion roller 19 of the operation cylinder 18 is freely rotated in both the left and right directions on both sides of the fixing plate 11 through the rotation center pin 12a coupled to the expansion roller 19. A pair of rotating plate 12 is formed, and the first pressing support shaft connecting pin 13a is installed at the bottom corner, and the connecting plate connecting pin 13b is installed at the outer corner, and the first pressing support is performed at the upper corner. An arc-shaped first pressing surface connected to each of the link plates 13 through the link plate 13 on which the shaft connecting pins 13c are installed and the first pressing support shaft connecting pins 13a coupled to both sides. (14a) is provided and the upper step (1) on both sides 4b) and the first pressing support shaft 14 provided with the third pressing support shaft pressing surface 13c, the lower end is connected to the link plate 13 through the connecting plate connecting pin 13b, and the upper end is the second pressing A connecting plate 15 connected to the second crimping support shaft 15 through the support shaft connecting pin 15a, and a second crimping support shaft formed of the same arc shape as the first crimping support shaft 14 and coupled to both sides. It is connected to each connecting plate 15 through the connecting pin 15a, and an arc-shaped second pressing surface 16a is provided on the lower surface thereof, and the step 16b and the third pressing support shaft pressing surface 16c are provided on both lower ends thereof. ) Is provided with a second crimping support shaft 16 and a third crimping support shaft connecting pin 15b installed at the center of the connecting support shaft 15 in the connection hole 17b formed at the outer center thereof. V-shaped pressing groove 17c having an arc-shaped third pressing surface 17a and having a second pressing support shaft 16 and a first pressing support shaft 14 contacting the upper end and the lower end thereof. There is provided a pipe crimping fastening tool 10 composed of a pair of third crimping support shafts 17.

However, in the case of FIG. 1A, since the pressing surfaces of the pressing dies 34 sequentially contact the pipes 22, the pressing efficiency is greatly reduced, and the wear of each pressing dies 34 is severe, resulting in a short life. If any one of the plurality of compression dies 34 is not normally operated, there is a problem that the outer circumferential surface of the pipe 22 is pinched between the compression dies 34 and is chewed.

2A and 2B show another conventional pipe crimping tool.

As can be seen in Figure 2a, the pipe crimping fastening tool is a first, second fixed block 210, 220 and the first, second fixed block 210, 220 can be rotated mutually. A plurality of chain links 230 and a plurality of circular arc blocks 240 are coupled to the inner surface of each chain link 230 by a coupling means, and an arc groove is formed on the inner circumferential surface and contacts the outer circumferential surface of the pipe to be crimped. ), A connecting link 270 rotatably connecting adjacent arc blocks 240, and the plurality of arc blocks 240 are pressed in the direction of releasing or pressing the outer circumferential surface of the pipe. First and second fixing blocks 210 and 220 are provided with operating means to constitute a pipe crimping fastening tool.

The actuating means is rotatably connected to the fixing plate 150 by hinge pins 112 and 122 and a pair of first and second connecting blocks connected to the first and second fixing blocks 210 and 220 at one end thereof. 2 main blocks 110 and 120 and a cylinder (not shown in the drawing) for rotating the other ends of the first and second main blocks 110 and 120 so as to be near or away from each other.

That is, the operation means is operated by being clamped to the forceps portion 121 formed in the form of forceps.

As described above with reference to FIGS. 1 and 2, the pipe crimping fastening tool is made of cast iron and has a problem in that it is difficult for an operator to perform a work because it is heavier than the overall size.

In addition, the pipe crimping tool can not work while visually confirming the crimping state during the work in progress, there is a problem to take the inconvenience to work while confirming the work position.

The present invention has been made in view of the above-described contents, and the present invention can visually confirm the crimping state of stainless steel pipes having different diameters with ink-embedded gas cylinders, so that the working position can be easily checked. Not only that, but also the surface that is not in close contact with the stainless steel pipe can be made of aluminum material, so that the weight of the product can be reduced, and the worker can improve the work efficiency and work quality by working after installing the work ladder. It is an object of the present invention to provide a pipe crimping tool.

Hereinafter, with reference to the accompanying drawings will be described the configuration and operating state of the present invention.

Figure 3 is a front view of the pipe crimping tool of the present invention, Figure 4 is a perspective view of the pipe crimping tool of the present invention, Figure 5 is an exploded perspective view of the pipe crimping tool of the present invention, Figure 6 is an exploded view of another pipe crimping tool of the present invention Perspective view.

For reference, in describing the present invention, when it is determined that a detailed description of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description thereof is omitted.

In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or an operator.

Therefore, the definition should be made based on the contents throughout the specification.

The pipe crimping fastening tool 700 includes support shafts 1,2 (100) and 100 'which are positioned to face each other in a pair, and support shafts 1,2 (100) and 100' which are positioned to face each other. It is fastened by the fixed shaft 200 and the hinge pin 300, inserts 1, 3 (400) (500) and inserts 2, 4 (400 ') ( 500 ') is fastened to the spring pin 600.

That is, the pipe crimping fastening tool 700, the support shaft 1,2 (100, 100 ') is coupled to the hinge pin 300 on both sides in the longitudinal direction of the fixed shaft 200 and the support shaft 1,2 (100) Inserts 1, 3, 2, 4 (400) (500) (400 ') 500' surrounding the outside of the (100 ') are coupled to each other by the spring pin 600.

The support shafts 1, 2 (100, 100 ′) are formed in a symmetrical form, and the support shaft 1 (100) is a support shaft in which the rounding body 110 and the handle part 120 are integrally formed. 1 (100) is a curved surface 111 is formed on the upper surface of the rounding body 110, one hinge hole 112 and two spring pin holes 113 are formed in the rounding body (110).

In addition, the support shaft 1 (100) is the handle portion 120 is integrally formed on the lower surface of the rounding body 110, the handle portion 120 is formed with a groove surface 121 is bent on the outer peripheral surface side of the rounding body 110 And a vertical surface 122 is formed on the side opposite to the groove surface 121.

That is, the support shafts 1, 2 (100, 100 ′) are formed in a symmetrical shape, and the two support shafts 1 (100) and the support shafts 2 (100 ′) are hinge pins 300 on the fixed shaft 200. ) Is coupled to the upper surface and the two support shafts 1,2 (100, 100 ') are coupled so that the vertical surface 122 is in close contact with each other.

On the other hand, the fixed shaft 200 is formed thicker than the support shaft 1,2 (100) (100 '), the fixed shaft 200 is formed so that the fixed body 210 is rounded and of the fixed body 210 Dichroic grooves 220 having dug the center of thickness are formed at both sides in the longitudinal direction, and hinge holes 213 are formed at the support shaft connecting portions 211 protruding at both sides in the longitudinal direction of the fixed body 210 and the fixed body 210. On the inner circumferential surface of the), two inner circumferential grooves R are formed which are formed in the rotation bodies of the inserts 1,2,3,4 (400) (400 ') (500) (500').

That is, the support shafts 1,2 (100, 100 ') are inserted into the fixed shaft 200 in both longitudinal dicing grooves 220 of the fixed body 210, so that the fixed shaft 200 and the support shafts 1,2 ( The hinge pins 300 penetrate through the hinge holes 213 and 112 of the 100 and 100 ′.

In addition, the support shaft 1,2 (100, 100 ') is the upper spring pin hole 113 by the spring pin 600 passing through the spring pin hole 113 formed on the upper and lower surfaces of the rounding body (110, 110'). Inserts 1, 2, 400, and 400 'are coupled to the springs, and inserts 3, 4, 500, and 500' are coupled to the spring pin holes 113.

Looking at the shape of the inserts 1,2,3,4 (400) (400 ') 500 (500'), the side plate portion 420 along the length of both sides in the width direction of the inner circumferential plate portion 410 at a 90 ° angle Although integrally formed, two inner circumferential grooves R are formed in the inner circumferential plate portion 410, and slit sheet holes 421 are formed in the side plate 420, respectively.

The side plates 420 of the inserts 1,2,3,4 (400) (400 ') (500) (500') have guide surfaces (422) and protrusions (424) in the longitudinal direction, respectively, in concave and convex shapes. The protrusions 424 are guided along the guide surface 422 when the inserts 1,2,3,4 (400), 400 ', 500, and 500' of the inserts are formed to facilitate the mutual coupling.

That is, each of the inserts 1, 2, 3, 4 (400), 400 ', 500, and 500' is formed such that the guide surface 422 and the protruding surface 424 are in close contact with each other. When the crimped stainless steel pipe is crimped at the same position during the crimping, the quality of the crimp comes out after the crimping.

At this time, the inserts 1,2,3,4 (400, 400 ', 500, 500') support shaft 1,2 (100) in the groove formed by the inner circumferential plate portion 410 and the side plate portion 420 100 'is in close contact with each other by the spring pin 600.

In other words, the inserts 1,2,3,4 (400) (400 ') 500 (500') is the handle portion 120 (120 ') of the support shaft 1,2 (100) (100') When they are in close contact with each other, as shown in Figs.

That is, the inserts 1,2,3,4 (400) (400 ') 500 (500') are flown in accordance with the operation of the support shaft 1,2 (100, 100 '), as shown in Figure 6 Each of the support shafts 1,2 (100) (100 ') and the inserts 1,2,3,4 (400) (400') 500 (500 ') have protrusions (117) (427) protruding from the springs. 650 is installed to insert 1, 2, 3, 4 (400), 400 ', 500, and 500' to form a precise round.

In addition, the support shaft 1 (100) and the support shaft 2 (100 ') by the hinge pin 300 is coupled to both sides in the longitudinal direction of the fixed shaft 200, the handle of the support shaft 1,2 (100) (100') Concave groove 119 is formed in the portion 120, 120 'is operated by a tong member (not shown in the figure), inserts 1,2,3,4 (400) (400') 500 (500) ') Guide surfaces 422 and protruding surfaces 424 are formed on the upper and lower surfaces of the side plate portion 420, and the inserts 1,2,3,4 (400) (400') ( 500) 500 'are to be installed in close contact as the tong member is operated.

6, the protrusions 117 are respectively provided on the support shafts 1,2 (100), 100 'and the inserts 1,2,3,4 (400), 400', 500, and 500 '. 427 protrudes, and the springs 650 are coupled to the protrusions 117 and 427 to transmit elastic force to the inserts 1,2,3,4 (400) (400 ') (500) (500'). Inserts 1, 2, 3, 4 (400), 400 ', 500, 500' are held in place so that the crimping can be effectively performed when the pipe is crimped.

Meanwhile, the support shafts 1,2 (100) (100 '), the fixed shaft 200 and the inserts 1,2,3,4 (400) (400') 500 (500 ') are FRP for light weight. (FRP; FIBERGLASS REINFORCED PLASTICS) and can be used.

That is, the support shaft 1,2 (100) (100 '), the fixed shaft 200, and the inserts 1,2,3,4 (400) (400') (500) ( 500 ') can be manufactured and used.

In particular, as shown in Figure 4, the crimping fastening tool (700) 700, the recess 120 is formed in the handle portion (120, 120 ') tongs which is a convex protruding portion of the tongs member as shown in Figure 2b The 121 is inserted to enable fastening not only in a straight line but also in left and right sides, thereby improving work efficiency.

Referring to the construction procedure for the above-mentioned pipe crimping fastening tool 700 as follows.

First, support shafts 1,2 (100) (100 ') are cast.

After coupling the support shafts 1,2 (100) (100 ') and the fixed shaft (200) to the hinge pins 300, the compression ring 350 is coupled to the circular grooves formed on both sides of the hinge pin 300 in the longitudinal direction. By preventing the departure of the hinge pin (300).

Second, the protrusions 1,2,3,4 (400) (400 ') 500, 500' to the support shafts 1,2 (100) (100 ') by mutually coupling with the spring pin 600 and then the projection ( 117 and 427 are connected to the spring 650.

That is, inserts 1,2,3,4 (400) (400 ') 500 (500') are coupled to the support shafts 1,2 (100) (100 ').

Due to the installation of the spring 650, the inserts 1,2,3,4 (400) (400 ') 500 (500') are held in place.

Third, a repeating test of the pipe crimping tool 700, 700 'is conducted.

That is, this is the main factor for determining whether the support shaft 1,2 (100, 100 ') is made precisely after the hinge pin 300 is coupled to both sides of the fixed shaft 200.

In detail, the pipe crimping tool 700 may be embossed with a letter such as 'SR-JOINT' in the inner circumferential groove R so as to be engraved on the product after the crimp for the stainless pipe. In addition, the presence or absence of work before and after the work can be confirmed, as well as the work integrity of the worker can be improved accordingly, leading to precise work.

On the other hand, the fixed shaft 200 is embedded in a round pipe to penetrate the inner inner circumferential groove (R) in the rounding surface of the fixed body 210 and then coupled to the nozzle developed to be combined with the spray to the circular pipe is ejected It is also possible to determine whether the work is carried out by installing so that the spray can be sprayed by the painted paint (not shown in the drawing).

The effects of the above-described configuration of the present invention will be described below.

Pipe compression fastening tool according to the present invention, through the light weight, the operator can easily proceed to work has an effect that can achieve the efficiency of work, in particular, the support shaft 1,2 and inserts 1,2,3, The springs are coupled to each of the protrusions protruding from the four, so that the support shafts 1,2 and the inserts 1,2,3,4 are mutually coupled to each other so that precise work can be achieved, thereby achieving the efficiency of the work quality.

In addition, the support shaft 1,2 combined with the fixed shaft is a structure in which the inserts 1,2,3,4 are joined by spring pins, which is easier to handle compared to the conventional pipe crimping tool, and the operator can easily operate the tool without any professional knowledge. It has the effect of crimping a stainless pipe having a diameter of another diameter.

Claims (5)

In a pipe crimping tool, a plurality of support shafts rotatable by hinge pins are opposed to each other, and are coupled to split and crimp stainless steel pipes at the front end of each support shaft. Two pairs are formed to face each other, and the rounding bodies 110 and 110 'and the handle portions 120 and 120' formed to be round are integrally formed and respectively formed on the rounding bodies 110 and 110 '. From the hinge hole 112 and the spring pin hole 113 is formed, the support shaft 1,2 (100, 100 ') protruding projections 117 on one side of the rounding body (110) (110'); Dipping grooves 220 are formed on both sides in the longitudinal direction of the fixed body 210 that is rounded, and the upper surface on which the curved surfaces 111 of the support shafts 1,2 (100) and 100 'are formed in the dicing grooves 220. A fixed shaft 200 inserted and fixed through the hinge hole 213 formed in the vertical connection portion 211 by the hinge pin 300; Hinge pins 300 are formed in a groove shape and a circular cross-sectional shape so that the compression ring 350 can be inserted into both longitudinal directions; An inner circumferential plate portion 410 having an inner circumferential groove R formed on the inner circumferential surface thereof, and a side plate portion 420 protruding outward from the inner circumferential surface perpendicular to both sides of the inner circumferential plate portion 410 in a width direction, are integrally formed on the side plate portion 420. Inserts 1, 2, 3, 4 (400) (400 ') (500) (500') formed to protrude the protrusions 427 and round the slit sheet holes (421); Through the spring pin hole 113 of the support shaft 1,2 (100) (100 ') and the slit sheet hole 421 of the insert 1,2,3,4 (400) (400') 500 (500 ') Spring pin 600 for fixing; Hooks are engaged to the support shafts 1,2 (100) (100 ') and the protrusions 117 (427) of the inserts 1,2,3,4 (400) (400') 500,500 ', respectively. Spring 650 is a pipe crimping tool characterized in that consisting of. The method of claim 1, The support shaft 1 (100) and the support shaft 2 (100 '), which are positioned to face each other in a pair, are coupled to both sides in the longitudinal direction of the fixed shaft 200 by the hinge pin 300, and the support shaft 1,2 (100). A recessed groove 119 is formed in the handle portions 120 and 120 'of the 100' and is operated by a tong member (not shown). Inserts 1,2,3,4 (400, 400 ', 500, 500') have guide surfaces 422 and protrusions 424 formed on the upper and lower surfaces of the side plate portion 420 in the form of convex and concave shapes. Inserts 1,2,3,4 (400) (400 ') (500) (500') based on the fixed shaft (200) to compress the stainless steel pipe as the tong member is operated so that high quality Insert 1,2,3,4 (400) (400 ') 500, 500' (500 ') protruding surface 424 is a crimping fastening tool, characterized in that the close operation along the guide surface (422). The method according to claim 1 or 2, Projections 117 and 427 are projected on the support shafts 1,2 (100) (100 ') and the inserts 1,2,3,4 (400) (400') 500 (500 '), respectively. 650) is a pipe crimping tool characterized in that coupled. The method according to claim 1 or 2, In the inner circumferential groove (R) of the inner circumferential plate portion 410 of the inserts 1,2,3,4 (400) (400 ') 500 (500'), letters such as fastening tool names and construction names are embossed. A crimping tool for pipe crimping, characterized in that the letters are engraved on the product so as to determine whether there is work after crimping the stainless pipe. The method according to claim 1 or 2, The support shafts 1,2 (100) (100 '), the fixed shaft (200) and the inserts 1,2,3,4 (400) (400') (500) (500 ') are FRP for light weight. ) Pipe clamping tool characterized in that the tongs 119 of the grip member coupled to the tongs groove 119 of the handle portion (120) (120 ') is installed to be fastened not only in a straight line but also left and right.

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