KR100923709B1 - Thin plate type gripping device for pipe connecting - Google Patents

Abstract

PURPOSE: A gripping plate for connecting a pipe is provided to prevent the modification by restoring the plate using an elastic unit. CONSTITUTION: A gripping plate for connecting a pipe comprises a first pressing unit(100), a second pressing unit(200), a first fastening member and a second fastening member. The first pressing unit includes a first pressing force focusing unit(110), a first elastic unit, a second pressing force focusing unit(150), a plurality of first fastening units and a plurality of second fastening units. The first fastening member connects the first connecting unit and the second connecting unit. The second fastening member connects a first joint and a second joint.

Description

Thin plate type rolling device for single line pipe {THIN PLATE TYPE GRIPPING DEVICE FOR PIPE CONNECTING}

The present invention relates to a thin plate type rolling device for a single-handed pipe.

The assembling structure of the knitting pipe used for water pipes and the like will be described with reference to FIG. 1.

The first piece tube 10 and the second piece tube 20 are the same shape, and the expansion portion 11 for inserting the second piece tube 20 is formed at the left end of the first piece tube 10, The pipe part 11 is formed with a packing mounting part 12 for mounting the watertight packing 30.

Of course, the right end of the first knitting pipe 10 has the same shape as the right end of the second knitting pipe 20, and the left end of the second knitting pipe 20 has the same shape as the left end of the first knitting pipe 10.

The connection structure of the knitting pipes assembled with each other by such a connection structure can prevent the leakage of water from the connection portion of the knitting pipe by the watertight packing 30, but if the pressure is excessively applied to the inside of the knitting pipe, the knitting pipes can be separated from each other. There is a problem.

That is, when excessive fluid pressure is applied to the inside of the knitting pipes in a state where the first knitting pipe 10 and the second knitting pipe 20 are assembled with each other, if there is no device to fix the first knitting pipe 10 and the second knitting pipe 20 to each other, The first knitting tube 10 may move to the right and the second knitting tube 20 may move to the left to be separated from each other.

In this connection structure of the knitting pipes there is no separate structure for preventing the separation of the knitting pipe.

Knitting pipes of such a structure need a device that can prevent the departure of the knitting pipes in any case, such as buried underground or installed on the ground.

For this purpose, Korean Utility Model Registration No. 20-0359262 "Integral pressure device for water pipes" (registered on August 6, 2004) has been proposed.

As in the prior art, the pressure bearing device for preventing the detachment of the existing knitting tube is made of a rod-shaped support that connects and supports the pressing portion in the form of a band which is mostly fastened with each knitting tube. Usually two supports are provided to be installed in opposite directions.

That is, a pair of pressure-wheeled parts connected to each other by a rod-shaped support member fixes the knitting pipes, thereby preventing the detachment of the knitting pipes.

Such a conventional pressure ring device is reasonable for the purpose of preventing the detachment of the knitting tube, but it becomes a problem when the separation force of the knitting tube is large because excessive pressure is applied inside the knitting tube.

In other words, when excessive release force occurs, local tensile stress is concentrated in the band-shaped rolling part, so that the band-shaped rolling part is deformed into an ellipse shape and the support is also twisted or bent.

The shape deformation of the pressing portion or the shape of the support portion may cause deformation of the knitting pipe, such as applying local compression to the knitting portion and its neighboring portion, and is also likely to be mistaken for poor construction or construction of a defective product. It is also undesirable from the side.

In addition, an excessive increase in the fluid pressure applied to the inside of the knitting tube is intermittently generated, and as a result, an excessive increase in the fluid pressure causes deformation of the pressure-bearing portion or the support.

In addition, the deformation of the band-shaped pressing portion into an elliptic form causes irregular pressing or local pressing of the knitting pipe, and also causes local pressing of the packing mounting portion and thereby deforms the shape, thereby threatening the watertight itself.

The present invention has been made to solve the problems of the prior art as described above, by the elastic portion of the thin plate structure can be distributed evenly the tension force applied to the pressure device is prevented from twisting the pressure device, and also by the elastic part It is possible to provide a thin plate-like rolling device for a single-handed pipe which is capable of restoring shape and does not cause accumulation of shape deformation.

In order to solve the above problems, the present invention is a semi-cylindrical 1-1 pressing portion having a flat cross section, and a semi-cylinder having a transverse cross-section convex in a longitudinal direction on one side in the longitudinal direction. A first cylindrical part having a cylindrical shape and a semi-cylindrical first-second pressure part having a diameter larger than a diameter of the first-first pressure part, the first elastic part being speaked to one side in the longitudinal direction of the first elastic part; A pair of 1-1 fastening portions bent in the radial direction at both circumferential ends of the 1-1 th pressing part and a pair of 1-2 bent in the radial direction at both circumferential ends of the 1-2 th pressing part. A first divided thin plate-type rolling hole including a fastening part; A semi-cylindrical 2-1 thrust portion having a flat cross section, a second cylindrical portion of a semi-cylindrical shape having a transverse cross-section convex in a longitudinal direction on one side of the second-1 thrust portion; (2) 2-2 thrusting portion having a semi-cylindrical shape that is spoken to one side of the elastic portion but has a flat cross section, and a pair of 2-1 fastenings radially bent at both circumferential ends of the 2-1 thrusting portion. A second divided thin-plate-shaped rolling mechanism including a pair and a pair of second-two fastening portions bent in radial directions at both circumferential ends of the second-second pressure-wheel portion; First fastening means for fastening the first-first fastening part and the second-first fastening part to each other; Second fastening means for fastening the 1-2 fastening portion and the second-2 fastening portion to each other; Characterized in that comprises a.

In the above description, the first divided thin plate-shaped rolling sphere is formed by sheet metal forming of a single steel plate, wherein the first-first pressing part, the first elastic part, the first-second pressing part, the first-first fastening part, and the The 1-2 fastening portion is formed integrally; The second divided thin plate-shaped rolling sphere is formed by sheet metal forming of a single steel plate, wherein the second-1 pressing portion, the second elastic portion, the second-2 pressing portion, the second-1 fastening portion, and the second-2. The fastening part is formed integrally; Can be.

In the above description, the first divided thin plate-shaped rolling sphere comprises a first-first pressure-bonding portion and a first-second pressure-bonding portion formed on both sides of the first elastic portion and the first elastic portion by sheet metal forming of one steel sheet. A thin plate for a first elastic portion, a thick plate for a first-first pressure ring formed of the first-first pressure portion and the first-first fastening portion having a thickness thicker than that of the first elastic portion thin plate, and the first elastic portion thin plate It has a thickness thicker than the thickness of the 1-2 thrust portion and the 1-2-2 fastening portion formed of the 1-2 fastening portion is made of, the first 1-1 thrust on the outer circumferential surface of the 1-1 thrust portion A joint is integrally formed by welding while being in surface contact and integrally formed by welding while the first-second pressure bonding part is in surface contact with the outer circumferential surface of the first-second pressure part; The second divided thin plate-like rolling hole is a thin plate for a second elastic portion comprising a second elastic portion and a second-2 pressure-bonded portion formed on both sides of the second elastic portion and the second elastic portion by sheet metal forming of one steel plate, respectively. And a thickness thicker than the thickness of the second elastic part thin plate and a thickness of the 2-1 pressure plate thick plate formed of the second-1 thrust part and the second-1 fastening part, and the thickness of the second elastic part thin plate. It is made of a thick plate for the 2-2 push wheel having a cloud thickness and formed of the 2-2 thrust portion and the 2-2 fastening portion, and the 2-1 thrust contact portion is in surface contact with the outer circumferential surface of the 2-1 th pressure portion. While being integrally formed by welding, the second-second pressure-joining portion is in surface contact with the outer circumferential surface of the second-second pressure part is integrally formed by welding; Can be.

In the above description, the first elastic portion includes a 1-1 inclined portion extending from one side in the longitudinal direction of the 1-1 th pressing portion, and a first intermediate portion extending in the longitudinal direction from one side in the longitudinal direction of the 1-1 inclined portion. And a 1-2 slope inclined from one longitudinal side of the first intermediate portion and connected to the 1-2 compression wheel portion. The second elastic portion is a 2-1 inclined portion extending from one side in the longitudinal direction of the 2-1 compression portion, a second intermediate portion extending in the longitudinal direction from one side in the longitudinal direction of the 2-1 inclined portion, and the second A second inclined portion axially connected from one longitudinal side of the intermediate portion and connected to the second-2 pressure wheel portion; This is desirable.

In the above description, a plurality of first-first pinched pieces are formed to protrude inwardly by a sheet metal forming process on the first-first press part, and a plurality of second-1 by plate forming processes on the second-first press part. It is preferable that the sandwich piece protrudes inward.

In the above, at least one or more incision hole is formed in the first elastic portion, it is preferable that the incision hole is formed long in the longitudinal direction.

As described above, the present invention can be manufactured in a very simple structure consisting of the first and second divided thin plate-like rolling holes and the first and second fastening means for fastening the same, so it is economical and its assembly is very simple.

In addition, the present invention can be evenly distributed by the elastic portion of the thin plate structure to prevent the twisting of the pressing device.

In addition, the present invention is provided with an elastic portion that contracts with the departure of the knitting tube, when the fluid pressure is large elastic portion is stretched, when the fluid pressure is low so that the elastic portion is restored to its original form, so that the accumulation of form deformation does not occur do.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise.

1 is a conceptual cross-sectional view of a first embodiment according to the present invention assembled to a knitting tube, FIG. 2 is a perspective view of an embodiment of the present invention assembled to a knitting tube, and FIG. 3 is an exploded view of the pressure device of FIG. 4 is a front view of the first divided thin plate-shaped rolling hole, FIG. 5 is a sectional view taken along line AA of FIG. 4, and FIG. 6 is a sectional view taken along line BB of FIG. 4.

The thin plate-like rolling device for a single-splice tube includes a first divided thin plate-shaped pressure gauge 100, a second divided thin-plate type pressure gauge 200, a first divided thin plate-type pressure gauge 110, and a second divided thin plate-type pressure gauge 120. It consists of first and second fastening means such as bolts and nuts for fastening to each other.

Since the shape of the first divided thin plate-shaped pushbutton 100 and the shape of the second divided thin-shaped pushbutton 200 are the same in this embodiment, hereinafter, the first divided thin plate-shaped pushbutton 100 will be described mainly, and the second divided. The description of the thin plate-shaped pusher 200 will be replaced with the description of the first divided thin plate-shaped pusher 100.

The first divided thin plate-like rolling holes 100 may include the first-first compression part 110, the first-first inclination part 120, the first intermediate part 130, the first-second inclination part 140, and the first-first inclination part 140. It consists of a -2 pressing part 150, the 1-1 fastening part 160, the 1-2 fastening part 170.

The first-first compression unit 110, the first-first inclination unit 120, the first intermediate portion 130, the first-second inclination unit 140, the first-second compression unit 160 in order It is formed continuously and has a semi-cylindrical shape as a whole. That is, the 1-1 inclination part 120 is formed while the 1-1 inclination part 120 extends in the longitudinal direction side, and the 1st intermediate part 130 in the longitudinal direction side of the 1-1 inclination part 120 is formed. ) Is formed while extending in the longitudinal direction, the first inclination portion 140 is formed on the one side in the longitudinal direction of the first intermediate portion 130, the tube is formed, the longitudinal direction of the first inclination portion 140 The one-second pressure wheel part 150 is formed at one side.

As shown in FIG. 6, the first-first pressure part 110 and the first-second pressure part 160 have a flat plate shape. That is, the 1-1 th pressing unit 110 and the 1-2 th pressing unit 160 is provided to form a band-shaped pressing unit in combination with the second divided thin plate-like pressing holes 200.

In addition, the first-second pressure part 160 has a diameter larger than the diameter of the first-first pressure part 110.

The first-first inclined portion 120, the first intermediate portion 130, and the first-second inclined portion 140 form a first elastic portion while having a cross-sectional convex shape in the radial direction.

The first elastic portion is formed so that the thin plate-like rolling device for the water-retaining tube can be stretched in the longitudinal direction and also restored to its original form.

The semi-cylindrical thin plate-shaped push-hole 100 as described above is not a semi-cylindrical shape having an exact arc angle of 180 °, but a semi-cylindrical shape having an arc angle of about 170 ° to 178 °. This is because the 1-1 th pressing unit 110 and the 1-2 th pressing unit 150 should be able to press the outer peripheral surface of the knitting pipe.

A pair of 1-1 fastening portions 160 bent in a radial direction are formed at both ends of the circumferential direction of the 1-1 th pressing portion 110, and a bolt hole is formed in the 1-1 fastening portion 160. It is.

A pair of 1-2 fastening portions 170 are formed at both ends of the circumferential direction of the 1-2 th pressing portion 150 in the radial direction, and bolt holes are formed in the 1-2 fastening portions 160. It is.

In addition, a plurality of first-first clamping pieces 111 protrude inwardly from the first-first pressing part 110.

Since the movement to the left side is limited by the interference structure with the packing mounting portion 12 as shown in FIG. 1, the 1-2 compression wheel 150 does not need to form a clamping piece separately. When the pressure ring part 150 is mounted a little spaced apart from the packing mounting part 12, since the first piece tube 10 can be slid by the distance, the first piece tube 10 can be axially stretched. Can be exercised.

The second divided thin plate-like pressure port 200 is provided in the same shape as the first divided thin-plate type pressure-type ball 100.

That is, the second divided thin plate-like rolling holes 200 may include the first-first pressing part 110, the first-first clamping piece 111, the first-first inclination part 120, the first intermediate part 130, In correspondence with the 1-2 inclination part 140, the 1-2 compression wheel 150, the 1-1 fastening part 160, and the 1-2 fastening part 170, the 2-1 pressure wheel part, The 2-1 narrowing piece, the 2-1 inclination part, the 2nd intermediate part, the 2-2 inclination part, the 2-2 thrust part, the 2-1 fastening part, and the 2-2 fastening part are formed.

The first divided thin plate-like rolling holes 100 are integrally formed by molding a single steel sheet.

That is, one steel sheet (thickness about 2 mm) is cut to an appropriate size to form a predetermined shape, and then the bolt holes and the first-first clamping pieces of the first-first fastening parts to the first-second fastening parts are formed by punching or the like. The first elastic portion (that is, the first-first slope portion, the first intermediate portion, the first-second slope portion), or the like is formed by deep drawing or the like.

The second divided thin plate-like wheels 200 are also manufactured by the same method.

As described above, after the first and second divided thin plate-shaped rolling holes 100 and 200 are manufactured, they are assembled into the knitting tube.

After the watertight packing 30 is attached to the packing mounting portion 12 of the knitting tube 10 as shown in FIG. 1, the pressure wheel viewed in a state where the right end of the knitting tube 20 is inserted into the expansion pipe portion 11 of the knitting tube 10. The device is assembled.

The 1-1 th pressing unit 110 and the 2-1 th pressing unit are mounted to surround the outer circumferential surface of the knitting tube 20, and the 1-2 th pressing unit 150 and the 2-2 th pressing unit are extended to the knitting tube 10. After being mounted to surround the outer circumferential surface of the pipe part 11, the first fastening means fastens the 1-1 fastening part 160 and the 2-1 fastening part, and the second fastening means is the 1-2 fastening part 170. ) And 2-2 fastening part.

In the present embodiment, the first and second fastening means consist of a fastening bolt and a nut, but this is only one embodiment.

By the fastening force of the 1st, 2nd fastening means, the 1st-1st clamping piece 111 of the 1st-1st wheel part 110 and the 2nd-1st clamping piece of a 2-1th wheel part of a 1st-2nd wheel part The 150 and the 2-2 pressing portion are fixed while strongly pressing the outer circumferential surface of the knitting tube.

If the thin plate-like pressure device for the water-retaining pipe is installed in this state, the connection part of the water-retaining pipe is mostly enclosed by the pressure-reducing device, so the appearance is very beautiful.

In addition, the thin plate-like rolling device for the single-handed tube can be manufactured by a very simple manufacturing process, the assembly is very simple.

In addition, when the fluid pressure inside the knitting pipe rises in the assembled state, the inclination angles of the first-first pressure part 110 and the first-first inclination part 120 and the first-first inclination part ( 120 and the inclination angle of the first intermediate portion 130, the inclination angle of the first intermediate portion 130 and the first-second inclination portion 140 is reduced, the overall length of the pressure wheel device is extended.

Even when the present rolling device is stretched, the tensile force is evenly distributed throughout the circumferential direction so that the shape of the present rolling device is not distorted.

In addition, when the fluid pressure in the inner part of the knitting pipe falls again, the first-first pressure part 110 and the first-first inclination part (110) according to the elastic restoring force of the first and second divided thin-plate pressure-screw holes 100 manufactured by the steel sheet. 120, the inclination angle of the first-first inclination portion 120 and the first intermediate portion 130, the inclination angle of the first intermediate portion 130 and the first-second inclination portion 140 is restored to the original state As a result, the overall length of the pusher device is restored to its original state.

Therefore, even if a frequent increase in the fluid pressure occurs, the pressure bearing device can cope with this while maintaining its shape.

FIG. 7 is a perspective view of a first split thin plate pressing tool according to another embodiment of the present invention, FIG. 8 is a front view of FIG. 7, and FIG. 9 is a C-C reference sectional view of FIG. 8.

4 is different from the embodiment of FIG. 4 in that the incision hole 131 is formed in the first elastic part. Of course, the second divided thin plate-shaped rolling sphere of the present embodiment is also formed in the same shape as the first divided thin plate-shaped rolling sphere (100).

In the present embodiment, two incision holes 131 are formed, and the incision holes 131 are long in the longitudinal direction.

In order to prevent distortion of the thin plate-like rolling device according to the detachment force of the knitting tube, it is preferable to apply a uniform tensile force along the circumferential direction, and for this purpose, it is preferable to have the same thickness along the circumferential direction.

That is, it is preferable that this thin plate-type rolling device, especially the longitudinal cross-sectional structure of a 1st elastic part, have the same thickness.

However, it is not easy for the first elastic part (specifically, the 1-1 inclination part, the first intermediate part, and the 1-2 inclination part) to have the same thickness in the circumferential direction during the deep drawing process. This problem is because the deep drawing becomes wider as the thickness of the steel sheet decreases, and thus the thickness change of the steel sheet is not the same unless the area increase rate according to the deep drawing is the same. That is, if the area increase rate of the 1-1 slope, the first intermediate portion, and the 1-2 slope portion is different, the thickness change is also different.

In view of such a problem, if the incision hole 131 is formed long in the longitudinal direction immediately before the deep drawing, the area increase rate due to the deep drawing can be substantially matched, thereby making it possible to have a uniform thickness in the circumferential direction.

FIG. 10 is a perspective view of a first divided thin plate pressing tool according to another embodiment according to the present invention, and FIG. 11 is a front view of FIG.

7 differs from the embodiment in FIG. 7 in that the direction in which the incision hole 131 is formed in the first elastic portion is formed in a direction perpendicular to the longitudinal direction of the thin plate-shaped rolling hole.

The incision hole 131 of this type has an advantage that it can give a stronger elastic force to the elastic portion.

FIG. 12 is an exploded perspective view of a first divided thin plate-like pressure port of another embodiment according to the present invention, FIG. 13 is an assembled perspective view of FIG. 12, FIG. 14 is a front view of FIG. 13, and FIG. 15 is a DD reference sectional view of FIG. 14. 16 is a cross-sectional view taken along line EE of FIG. 14.

The first divided thin plate-like rolling holes of this embodiment have a form in which three parts are integrally formed with each other by welding.

To this end, in the present embodiment, the first divided thin plate-like rolling hole 100 includes a thin plate 100a for the first elastic part, a thick plate 100b for the first-first compression wheel, and a rear plate 100b for the first-second pressure wheel.

Of course, the second divided thin plate-shaped rolling holes 200 also correspond to the first divided thin plate-shaped rolling holes 100 and are made of a thin plate for the second elastic portion, a second plate for the second pressure wheel, and a second plate for the second-2 pressure wheel.

The thin plate 100a for the first elastic part includes a 1- 1 th pressure-bonding part 120a having a semi-cylindrical shape, a 1-1 inclination part 120, a first intermediate part 130, and a 1-2 inclination part 140. ), The semi-cylindrical first to second pressure-bonded portion (140a).

The thin plate 100a for the first elastic part is manufactured by sheet metal forming of a single steel plate, and the first-first, second pressure-bonding parts 120a and 140a are formed on both sides of the first elastic part 120, 130, and 140. It is formed in one piece.

The first-first pressure plate thick plate 100b has a thickness thicker than that of the first elastic portion thin plate 100a and includes the first-first pressure part 110 and the first-first fastening part 160.

The 1-2 th pressure plate thick plate 100c has a thickness thicker than that of the first elastic portion thin plate 100a and includes the 1-2 th pressure portion 150 and the 1-2 th fastening portion 170.

In such a state, the first-first pressure-joining part 120a is integrally formed with the outer circumferential surface of the first-first pressure part 110 while being in surface contact with resistance welding, or the like. The first-second pressure-bonded part 140a is integrally formed while being in surface contact with resistance welding or the like.

When using the thin plate-like rolling holes as described above, as well as elasticity by the thin plate 100a for the first elastic part, the rigid clamping by the thick plate 100b for the 1-1 thru wheel 100b to the rear plate 100c for the 1-2 th wheel is possible. The advantage is that it is possible.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

The present invention can be used as a pressure wheel device for detachment of the knitting tube.

1 is a conceptual cross-sectional view of an embodiment according to the present invention assembled to a knitting tube;

Figure 2 is a perspective view of an embodiment according to the present invention assembled to the knitting tube,

3 is an exploded perspective view of the pressure device of FIG.

4 is a front view of the first split thin plate-shaped rolling mill,

5 is a cross-sectional view taken along line A-A of FIG. 4;

6 is a sectional view taken along line B-B of FIG. 4;

7 is a perspective view of a first divided thin plate-like wheel of another embodiment according to the present invention,

8 is a front view of FIG. 7;

9 is a cross-sectional view taken along line C-C in FIG. 8;

10 is a perspective view of a first split sheet-shaped rolling mill of another embodiment according to the present invention;

11 is a front view of FIG. 10,

12 is an exploded perspective view of a first divided thin plate-like pressure port of another embodiment according to the present invention;

13 is an assembled perspective view of FIG. 12;

14 is a front view of FIG. 13,

15 is a cross-sectional view taken along line D-D of FIG. 14;

FIG. 16 is a cross-sectional view taken along the line E-E in FIG. 14; FIG.

<Description of Symbols for Main Parts of Drawings>

Reference Signs List 100 100 First Split Plate Type Pushing Hole 110

111: 1st-1st Edition 120: 1st-1st Slope

130: first intermediate portion 131: incision hole

140: 1-2 inclination part 150: 1-2 compression wheel

160: fastener 1-1 170: fastener 1-2

Claims (6)

A semi-cylindrical 1-1 thrust portion having a flat cross section, a first cylindrical portion having a semi-cylindrical shape that is spoken to one side in the longitudinal direction of the 1-1 th pressure portion, and whose cross section is convex in a radial direction; (1) A semi-cylindrical first and second pressure-producing part having a diameter larger than the diameter of the first-first pressure-producing part and a circumferential end of the first-first pressure-producing part, which are struck on one side in the longitudinal direction of the elastic part. A first divided thin-plate-shaped rolling mechanism comprising a pair of first-first fastening portions bent in a radial direction and a pair of first-second fastening portions bent in a radial direction at both circumferential ends of the first-second pressure-producing part. ; A semi-cylindrical 2-1 thrust portion having a flat cross section, a second cylindrical portion of a semi-cylindrical shape which is struck on one side of the 2-1 thrust portion in a longitudinal direction and whose cross section is convex in a radial direction; (2) 2-2 thrusting portion having a semi-cylindrical shape that is spoken to one side of the elastic portion but has a flat cross section, and a pair of 2-1 fastenings radially bent at both circumferential ends of the 2-1 thrusting portion. A second divided thin-plate-shaped rolling mechanism including a pair and a pair of second-two fastening portions bent in radial directions at both circumferential ends of the second-second pressure-wheel portion; First fastening means for fastening the first-first fastening part and the second-first fastening part to each other; Second fastening means for fastening the 1-2 fastening portion and the second-2 fastening portion to each other; Thin plate-like pressure device for single-handed pipe comprising a. According to claim 1: The first divided thin plate-shaped rolling sphere is formed by sheet metal forming of a single steel plate, wherein the first-first pressing part, the first elastic part, the first-second pressing part, the first-first fastening part, and the first-second part. The fastening part is formed integrally; The second divided thin plate-shaped rolling sphere is formed by sheet metal forming of a single steel plate, wherein the second-1 pressing portion, the second elastic portion, the second-2 pressing portion, the second-1 fastening portion, and the second-2. The fastening part is formed integrally; Thin plate pressing device for a single tube. According to claim 1: The first divided thin plate-like rolling hole is a thin plate for a first elastic portion comprising a first-first pressure-bonded portion and a first-second pressure-bonded portion formed on both sides of the first elastic portion and the first elastic portion by sheet metal forming of one steel sheet. And a thickness thicker than the thickness of the first elastic portion thin plate, and having a thickness greater than that of the first-first pressure portion thick plate formed of the first-first pressure portion and the first-first fastening portion, and the thickness of the first elastic portion thin plate. It is made of a thick plate for the 1-2 pressure wheel having a cloud thickness and formed of the 1-2 compression wheel portion and the 1-2 fastening portion, and the 1-1 pressure bonding portion is in surface contact with the outer circumferential surface of the 1-1 pressure bearing portion While being integrally formed by welding, the first-second pressure-bonded part is integrally formed by welding while being in surface contact with the outer circumferential surface of the first-second pressure wheel part; The second divided thin plate-shaped rolling sphere is a thin plate for a second elastic portion comprising a second elastic portion and a second elastic portion bonded to the second elastic portion formed on both sides of the second elastic portion and the second elastic portion by sheet metal forming of one steel plate, respectively. And a thickness thicker than the thickness of the second elastic part thin plate and a thickness of the 2-1 pressure plate thick plate formed of the second-1 thrust part and the second-1 fastening part, and the thickness of the second elastic part thin plate. It is made of a thick plate for the 2-2 push wheel having a cloud thickness and formed of the 2-2 thrust portion and the 2-2 fastening portion, and the 2-1 thrust contact portion is in surface contact with the outer circumferential surface of the 2-1 th pressure portion. While being integrally formed by welding, the second-second pressure-joining portion is in surface contact with the outer circumferential surface of the second-second pressure part is integrally formed by welding; Thin plate pressing device for a single tube. The method according to any one of claims 1 to 3, wherein: The first elastic portion includes a 1-1 inclined portion extending from one side in the longitudinal direction of the 1-1 th pressing portion, a first intermediate portion extending in the longitudinal direction from one side in the longitudinal direction of the 1-1 inclined portion, and the first portion. A first inclined portion axially concentrically formed from one longitudinal side of the intermediate portion and connected to the first-2 thrust portion; The second elastic portion is a 2-1 inclined portion extending from one side in the longitudinal direction of the 2-1 compression portion, a second intermediate portion extending in the longitudinal direction from one side in the longitudinal direction of the 2-1 inclined portion, and the second A second inclined portion axially connected from one longitudinal side of the intermediate portion to be connected to the second-2 pressure wheel portion; Thin plate pressing device for a single tube. The method according to any one of claims 1 to 3, wherein: A plurality of first-first clamping pieces are formed to protrude inwardly by the sheet forming process on the first-first pressing part, A plurality of 2-1 pinched pieces protrude inwardly by the sheet forming process of said 2-1 pressure part, The thin plate-type pressure device for single-handed pipes characterized by the above-mentioned. The method according to any one of claims 1 to 3, wherein: At least one incision hole is formed in the first elastic portion thin plate-like pressure device for a single tube.

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