Plugging device for uninterrupted flow construction method

Abstract

A plugging device for an uninterrupted flow construction method of the present invention finishes a branch hole formed in a pipe and is characterized by comprising: a housing which has a clamp insertion hole and surrounds the outer circumferential surface of the pipe to finish the branch hole; a cam guide installed in the housing to face the clamp insertion hole; and a clamp which is installed in the clamp insertion hole of the housing, is drawn out and compressed by the cam guide in a cam operation, and fixes the inner circumferential surface of the pipe. Accordingly, the branch hole is arranged between the housing and the clamp to clamp the inside and the outside of the branch hole, thereby providing the effect of stably finishing (sealing) the branch hole.

Description

Plugging device for non-stop flow method

[0001] The present invention relates to a plugging device for a non-stop flow method, and more particularly, to a plugging device for a non-stop flow method for closing (sealing) a branch hole perforated for branching in a pipe through which a fluid flows.

[0002] In order to supply fluids, including tap water, pipes are buried underground, and by continuously connecting pipes of a certain length, the fluids are safely transported to the desired destination.

[0003] Among these pipes, water supply pipes are composed of large-diameter main pipes that transport large quantities of water over long distances, and branch pipes that branch off from the main pipes and are used for relatively short-distance transport to supply water to buildings such as homes and offices.

[0004] In pipes with branches like this, valves must be installed to ensure that the water supply can be shut off, making it easier to replace aged pipes (main pipe, branch pipe) or valves by simply replacing them.

[0005] This conventional method has the disadvantage of having a wide range of water cutoffs because it is performed after closing all valves installed around the replacement point to cut off the water supply to the pipes or valves at the replacement point.

[0006] In addition, as mentioned above, when the water supply is cut off, it causes inconvenience and loss to each household and various industrial facilities, and there is a problem of causing inconvenience to the lives of the people. In order to solve this problem, a non-stop water supply (non-stop water supply) method using a non-stop water supply valve to repair water pipes without cutting off the water supply has been developed.

[0007] This non-disruptive method refers to the process of replacing pipes or valves or connecting or branching separate branch pipes while maintaining the flow and pressure of fluids such as water, gas, and oil flowing in the pipes of the construction section without cutting them off.

[0008] Additionally, in order to connect a branch pipe in a pipe, a branch hole is formed, and a valve, a splitter pipe, a branch pipe, etc. are connected to the branch hole.

[0009] Accordingly, it was essential to close the branch holes to replace aging valves, branch pipes and splitter pipes.

[0010] Moreover, there are frequent cases where it is no longer necessary to supply water through a branch pipe formed by branching off from an existing water pipe. In this case, a method of separating and removing the branch pipe connected to the pipe while sealing the branch hole formed in the pipe has been proposed.

[0011] In the past, a plug was used to close a branch hole like this.

[0012] However, conventional plugs close the vent by forcibly pushing in an elastic material, which can be gradually pushed out by constant pressure, potentially causing a leak.

[0013] Therefore, there is a need for the development of a plugging device for a complex and improved non-stop method that stably closes the branch hole of a pipe.

[0014] [Prior Art Literature]

[0015] [Patent Document]

[0016] Republic of Korea Patent No. 10-1615921 (registered on April 21, 2016)

[0017] Republic of Korea Patent No. 10-0561191 (registered on March 8, 2006)

[0018] The present invention has been devised to solve the above-mentioned problems of the prior art, and the purpose of the present invention is to provide a plugging device for a non-stop method that stably closes (seales) a branch hole by stably clamping the inside and outside of the branch hole formed in the pipe.

[0019]

[0020] The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art to which the present invention pertains from the description below.

[0021] In order to achieve the above object, the present invention provides a plugging device for a non-stop method for closing a branch hole formed in a pipe, the plugging device comprising: a housing having a clamp insertion hole formed therein and surrounding an outer surface of the pipe to close the branch hole; a cam guide installed in the housing so as to face the clamp insertion hole; and a clamp installed in the clamp insertion hole of the housing and pulled out and compressed by the cam guide and cam operation to fix the inner surface of the pipe.

[0022] In addition, the clamp insertion hole is characterized by being composed of a first clamp insertion hole formed of a female screw and a second clamp insertion hole having a relatively larger inner diameter than the first clamp insertion hole.

[0023] In addition, the clamp is characterized by comprising a cam driver having a cam profile and a through hole formed therein that are inserted into the second clamp insertion hole and coupled with the cam guide, and a rotating body that is rotatably installed in the through hole of the cam driver and has a male screw formed therein so as to be screw-coupled with the first clamp insertion hole.

[0024] In addition, a catch groove is formed at the bottom of the through hole, and a ring groove is formed on the rotating body to which a catch jaw and a snap ring are fixed to be combined with the catch groove.

[0025] In addition, the cam profile is characterized by comprising a first cam that raises and lowers the cam driving body by forward and reverse rotation of the rotating body, and a second cam that rotates the cam driving body by forward and reverse rotation of the rotating body.

[0026] In addition, it is characterized by further comprising a rubber packing installed at the bottom of the housing.

[0027] In addition, the housing is characterized in that an anti-slip unit insertion hole is formed, and an anti-slip unit is installed in the anti-slip unit insertion hole.

[0028] In addition, the anti-slip unit is characterized by comprising a driving cam assembly that is screw-connected to the anti-slip unit insertion hole and is raised and lowered by forward and reverse rotation, a guide installed in the housing, a slider that is slidably installed in the guide and has a driven cam corresponding to the driving cam assembly formed therein, and a return spring that returns the slider.

[0029] In addition, the housing is characterized in that a dynamic pressure valve insertion hole is formed, and a dynamic pressure valve is installed in the dynamic pressure valve insertion hole.

[0030] In addition, the above-described dynamic pressure valve is characterized by comprising a valve seat formed in the dynamic pressure valve insertion hole, a valve body that opens and closes the valve seat, a valve spring that elastically supports the valve body, and a closing cap that fixes the valve spring and has an inlet hole formed therein.

[0031] In addition, it is characterized in that an elevating unit for operating the plugging device for the above-mentioned non-stop method is further provided.

[0032] According to the plugging device for a non-stop method according to the present invention, a branch hole is arranged between a housing and a clamp, thereby clamping the inside and outside of the branch hole to provide the effect of stably closing (sealing) the branch hole.

[0033] Additionally, the center of the branch hole and the center of the housing are aligned by the anti-push unit to accurately guide the clamping position.

[0034] Additionally, the insertion of the plugging device is facilitated by matching the pressure inside the pipe with the internal pressure of the plugging device by means of a pressure valve.

[0035] Figure 1 is an exploded perspective view of a plugging device for a non-permanent flow method according to the present invention.

[0036] Figure 2 is a perspective view illustrating a plugging device for a non-stop method according to the present invention.

[0037] Figure 3 is a perspective view showing the bottom surface of a plugging device for a non-permanent flow method according to the present invention.

[0038] Figure 4 is a side view illustrating a plugging device for a non-stop method according to the present invention.

[0039] Figure 5 is a cross-sectional view taken along the line 'a-a' of Figure 4.

[0040] Figure 6 is a cross-sectional view taken along the line 'b-b' of Figure 4.

[0041] Figure 7 is a bottom view illustrating a plugging device for a non-permanent flow method according to the present invention.

[0042] Figure 8 is a perspective view showing the housing of a plugging device for a non-continuous flow method according to the present invention.

[0043] Figure 9 is a cross-sectional view showing a push prevention unit of a plugging device for a non-stop method according to the present invention.

[0044] Figure 10 is a cross-sectional view showing a state in which a plugging device for a non-stop method according to the present invention is installed in a pipe.

[0045] Figures 11a and 11b are exemplary drawings showing the process of a method of closing a branch hole of a pipe using a plugging device for a non-stop method according to the present invention.

[0046] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. The advantages and features of the present invention, and methods for achieving them, will become clearer with reference to the embodiments described in detail below together with the attached drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms. These embodiments are provided only to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Like reference numerals designate like elements throughout the specification.

[0047] Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used in their common sense to those of ordinary skill in the art to which the present invention pertains. Furthermore, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless explicitly and specifically defined otherwise.

[0048] Additionally, the singular in this specification may also include the plural unless specifically stated otherwise in the text. As used herein, the terms "comprises" and / or "comprising" do not exclude the presence or addition of one or more other components, steps, operations, and / or elements.

[0049] FIG. 1 is an exploded perspective view of a plugging device for a non-stop flow method according to the present invention, FIG. 2 is a perspective view of a plugging device for a non-stop flow method according to the present invention, FIG. 3 is a perspective view of a bottom surface of a plugging device for a non-stop flow method according to the present invention, FIG. 4 is a side view of a plugging device for a non-stop flow method according to the present invention, FIG. 5 is a cross-sectional view taken along the line 'a-a' of FIG. 4, FIG. 6 is a cross-sectional view taken along the line 'b-b' of FIG. 4, FIG. 7 is a bottom view of a plugging device for a non-stop flow method according to the present invention, FIG. 8 is a perspective view of a housing of a plugging device for a non-stop flow method according to the present invention, FIG. 9 is a cross-sectional view of a push-prevention unit of a plugging device for a non-stop flow method according to the present invention, and FIG. 10 is a cross-sectional view of a state in which a plugging device for a non-stop flow method according to the present invention is installed on a pipe, FIG. 11a to 11b are exemplary drawings showing the process of a method of closing a branch hole of a pipe using a plugging device for a non-stop method according to the present invention.

[0050] As shown in Figures 1 to 10, the branch hole (P1) formed in the pipe (P) is closed.

[0051] A plugging device (A) for a non-stop flow method according to the present invention comprises a housing (100) that surrounds the outer surface of the pipe (P) so as to close the branch hole (P1), a cam guide (200) installed toward the center of the clamp insertion hole (110), and a clamp (300) that is installed in the clamp insertion hole (110) of the housing (100) and is extracted and compressed by the cam guide (200) and cam operation to fix the inner surface of the pipe (P).

[0052] First, the housing (100) is formed in a cylindrical shape, and the lower end of the housing (100) is formed in an arcuate cross-section as illustrated in Fig. 6. Accordingly, the housing (100) is formed in a shape that surrounds the outer circumferential surface of the pipe (P).

[0053] In addition, a cam guide insertion hole (101) formed with a female screw is formed in the housing (100) so that a cam guide (200) can be installed. At this time, the cam guide insertion hole (101) is formed to penetrate the center of the clamp insertion hole (110) in a direction perpendicular to the center.

[0054] And, the cam guide (200) is composed of a ball screw, a ball plunger, a ball roller, or a pin guide. At this time, the cam guide (200) is formed as a headless bolt type and a general bolt type.

[0055] Meanwhile, as shown in FIG. 5, the clamp insertion hole (110) is composed of a first clamp insertion hole (111) formed of a female screw, and a second clamp insertion hole (112) having a relatively larger inner diameter than the first clamp insertion hole (111).

[0056] In addition, as shown in FIG. 1 or FIG. 5, the clamp (300) is composed of a cam driver (310) having a cam profile (311) and a through hole (312) formed therein, which is inserted into the second clamp insertion hole (112) and coupled with the cam guide (200), and a rotating body (320) which is rotatably installed in the through hole (312) of the cam driver (310) and has a male screw (321) formed therein so as to be screw-coupled with the first clamp insertion hole (111).

[0057] And, a catch groove (313) is formed at the bottom of the through hole (312) of the cam drive body (310), and a catch protrusion (322) that engages with the catch groove (313) and a ring groove (323) to which a snap ring (330) is fixed are formed in the rotating body (320). At this time, the catch groove (313) is formed in a flat or countersunk shape, and the catch protrusion (322) is formed in a flat or dish-head shape.

[0058] Meanwhile, a foot (314) is formed protrudingly on the cam drive body (310) to contact the inner surface of the pipe (P) and pull the housing (100) to be in close contact with the pipe (P), and an inclined surface (315) is formed on the foot (314).

[0059] In addition, as illustrated in FIG. 1, ring grooves (314, 315) are formed on the outer surface of the cam drive body (310) and the through hole (312), respectively, and O-rings (316, 317) are installed in the ring grooves (314, 315), respectively. The O-rings (316, 317) prevent fluid from leaking between the clamp (300) and the housing (100).

[0060] In addition, a hexagonal head (324) is formed on the above-described rotating body (320), and rotation is achieved by combining with the lifting unit described later.

[0061] The assembly structure of the clamp (300) configured in this manner and the assembly structure of the clamp (300) and the housing (100) are described.

[0062] First, the above-mentioned rotating body (320) is installed across the through hole (313) of the cam driving body (310). At this time, the engaging jaw (322) of the above-mentioned rotating body (320) engages with the engaging groove (313) to limit the insertion depth.

[0063] Thereafter, the assembly of the clamp (300) is completed by inserting the snap ring (330) into the exposed ring groove (323) across the through hole (312). Accordingly, the rotating body (320) is assembled so that it rotates relative to the cam driving body (310) while preventing it from coming off.

[0064] Next, the assembled clamp (300) is inserted into the lower part of the clamp insertion hole (110) by rotation, and the male screw (321) of the rotating body (320) and the female screw of the first clamp insertion hole (111) are screwed together.

[0065] Finally, the cam guide (200) is inserted through the cam guide insertion hole (101) so that the cam profile (311) and the cam guide (200) are interlocked with each other to perform cam operation.

[0066] That is, the above-mentioned rotating body (320) is installed so that rotation occurs, and the above-mentioned cam driving body (310) is configured so that elevation occurs from the top to the bottom part by the cam profile (311) and the cam guide (200), and rotation occurs only in the bottom part.

[0067] Specifically, the cam profile (311) is composed of a first cam (311a) that raises and lowers the cam driver (310) by forward and reverse rotation of the rotor (320), and a second cam (311b) that rotates the cam driver (310) by forward and reverse rotation of the rotor (320).

[0068] When explaining the operation of the above clamp (300), when the rotating body (320) rotates in the forward direction, the clamp (300) protrudes away from the lower end of the housing (100) without rotating by the cam guide (200) and the first cam (311a).

[0069] Thereafter, when the forward rotation of the above-mentioned rotating body (320) is added, the cam driving body (310) rotates inside the second clamp insertion hole (112) of the housing (100) by the cam guide (200) and the second cam (311b).

[0070] At this time, the rotation direction of the cam drive body (310) is such that the foot (314) is rotated (internal rotation, solid line in FIG. 3) toward the center (C) of the housing (100), as shown in FIG. 3 or FIG. 7. This state is a state in which there is no interference between the foot (314) and the branch hole (P1). In other words, the plugging device (A) of the present invention can be inserted into the branch hole (P1) without interference.

[0071] On the other hand, when the above-mentioned rotating body (320) is rotated in the reverse direction, the cam driving body (310) rotates inside the second clamp insertion hole (112) of the housing (100) by the cam guide (200) and the second cam (311b).

[0072] At this time, the rotation direction of the cam drive body (310) is such that the foot (314) rotates away from the center (C) of the housing (outer rotation, two-dot chain line in FIG. 3) as shown in FIG. 3 or FIG. 7. This state is a state in which the foot (314) is caught in the branch hole (P1).

[0073] In this state, when the reverse rotation of the above-mentioned rotating body (320) is added, the cam driving body (310) is compressed in the direction of the housing (100) by the above-mentioned cam guide (200) and the first cam (311a).

[0074] That is, when the reverse rotation of the above-described rotating body (320) occurs while the foot (314) is inserted into the branch hole (P1), the foot (314) generates a pulling force by being caught on the branch hole (P1), and accordingly, the housing (100) closes the branch hole (P1).

[0075] Ultimately, according to the cam operation described above, when the clamp (300) is withdrawn from the housing (100), the foot (314) passes through the branch hole (P1), and when the clamp (300) is compressed against the housing (100), the inner surface of the pipe (P) is fixed by the foot (314) and the housing (100) is pressed against the outer surface of the pipe (P1).

[0076] In addition, a rubber packing (400) is further provided to be installed at the bottom of the housing (100). Accordingly, the rubber packing (400) prevents fluid from leaking between the housing (100) and the pipe (P).

[0077] In addition, an anti-slip unit insertion hole (120) is formed in the housing (100), and an anti-slip unit (500) is installed in the anti-slip unit insertion hole (120).

[0078] Meanwhile, as shown in FIG. 6 or FIG. 9, the anti-rolling unit (500) is composed of a driving cam assembly (510) that is screw-connected to the anti-rolling unit insertion hole (120) and is raised and lowered by forward and reverse rotation, a guide (520) installed in the housing (100), a slider (530) that is slidably installed on the guide (520) and has a driven cam (531) corresponding to the driving cam assembly (510), and a return spring (540) that returns the slider (530).

[0079] In addition, as shown in FIG. 6, the anti-slip unit insertion hole (120) is composed of a first anti-slip unit insertion hole (121) in which a female screw is formed, and a second anti-slip unit insertion hole (122) having a relatively larger inner diameter than the first anti-slip unit insertion hole (121).

[0080] In addition, the drive cam assembly (510) is formed with a drive cam (511), a hollow drive cam lifting body (512) inserted into the second anti-slip unit insertion hole (122), and a drive cam rotating body (513) installed across the inside of the hollow drive cam lifting body (512) and screw-connected to the first anti-slip unit insertion hole (121).

[0081] Here, a hexagonal head (518) is formed to be coupled with the lifting device described later on the upper portion of the drive cam rotor (513).

[0082] At this time, a stopper (514) is formed on the upper part of the driving cam rotor (513), and a catch member (515) is provided on the lower part of the driving cam rotor (513) to prevent the driving cam rotor (512) from being separated from the driving cam elevating member (512). At this time, the catch member (515) is configured as a separation structure by a mechanical coupling element such as a screw, thereby preventing the driving cam rotor (513) from being separated from the inside of the driving cam elevating member (512) and allowing rotation to occur.

[0083] Meanwhile, a ring groove (516) is formed on the outer and inner surfaces of the driving cam lifting body (512), and an O-ring (517) is installed in the ring groove (516). The O-ring (517) prevents fluid leakage.

[0084] The operation of the above anti-slip unit (500) will be described with reference to FIG. 9. The housing (100) rotates the drive cam rotor (513) in the forward direction while surrounding the branch hole (P1) and the pipe (P).

[0085] Next, the driving cam assembly (510) moves downward by the downward movement of the driving cam rotor (513).

[0086] And, the driving cam (511) of the driving cam assembly (510) pushes the driven cam (531) and the slider (530) moves toward the branch hole (P1).

[0087] Next, the slider (530) is in close contact with the branch hole (P1) to prevent the plugging device (A) of the present invention from being pushed and firmly fixes the plugging device (A) inside the branch hole (P1).

[0088] On the other hand, when the reverse rotation of the drive cam rotor (513) is performed, the slider (530) is released from contact with the branch hole (P1) by the restoration spring (540).

[0089] In the above description and drawings, the slider (530) is configured as two, but it is also possible to form the drive cam assembly (510) as a pyramid or cone and configure the slider (530) as three or more.

[0090] In addition, an interference prevention groove (518) is formed in the driving cam (511) to prevent interference with the restoration spring (540) when the driving cam assembly (510) is lowered.

[0091] And, as shown in Fig. 6, a dynamic pressure valve insertion hole (130) is formed in the housing (100), and a dynamic pressure valve (600) is installed in the dynamic pressure valve insertion hole (130).

[0092] At this time, the dynamic pressure valve insertion hole (130) is formed to penetrate in the axial direction of the housing (100). A taper is formed at the entrance of the dynamic pressure valve insertion hole (130) to guide the insertion of the bolt for the lifting device described later. At this time, the upper entrance of the dynamic pressure valve insertion hole (130) is formed with a female screw.

[0093] Meanwhile, as illustrated in FIG. 1 or FIG. 6, the dynamic pressure valve (600) is composed of a valve seat (610) formed in the dynamic pressure valve insertion hole (130), a valve body (620) that opens and closes the valve seat (610), a valve spring (630) that elastically supports the valve body (620), and a closing cap (640) that fixes the valve spring (630) and has an inlet hole (641) formed therein. At this time, the valve body (620) is pressed by a connecting bolt of the lifting device.

[0094] Additionally, a discharge hole (650) is formed in the housing (100) through which the fluid passing through the valve seat (610) is discharged.

[0095] After installing the plugging device (A) of the present invention by the above-mentioned dynamic pressure valve (600), the fluid is sent to a part where the fluid does not flow, thereby maintaining the dynamic pressure by matching the pressure at the front and rear ends of the plugging device (A).

[0096] That is, when the plugging device (A) of the present invention is installed in a state where the dynamic pressure is not maintained, the plugging device (A) is pushed out of the branch hole (P1) by the pressure of the fluid, making insertion difficult. In addition, even after insertion into the branch hole (P1), the pressure of the fluid may act on the plugging device (A), causing a pushing phenomenon and damage to the device.

[0097] In this way, when performing a non-stop flow method on a pipe through which fluid flows or when installing or replacing a valve, it is essential to maintain the dynamic pressure in front and behind the installation target, so a detailed explanation is omitted.

[0098] Lastly, an elevating unit (B) for operating the plugging device (A) for the non-stop method of the present invention is further provided.

[0099] The operation of a plugging device for a non-stop flow method using a lifting unit is briefly explained using FIGS. 11a and 11b as examples.

[0100] First, replace the old valve, branch pipe and splitter pipe or close the unused branch hole by closing the valve and then removing the branch pipe (1).

[0101] Next, a lifting unit (B) including a plugging device (A) for the non-stop method of the present invention is installed on the flange of the dividing tube (2).

[0102] Then, after opening the valve of the pipe, the lifting unit (B) lowers the plugging device (A) and places the plugging device on the pipe (3) to (4).

[0103] Next, the lifting unit operates the clamp of the plugging device to close the branch hole of the pipe with the plugging device (5).

[0104] Then, separate the lifting unit and plugging device (6).

[0105] Next, raise the lifting unit and separate the lifting unit (7)~(8).

[0106] Finally, separate the valve and the diaphragm (9).

[0107] Conversely, the above-described (1) to (9) are performed in reverse order to install the splitter tube and valve, and then the plugging device is unclamped with the lifting unit, and the plugging device and the lifting unit are separated. Thereafter, the valve of the splitter tube is closed, and the branch pipe can be installed.

[0108] According to the present invention, a branch hole (P1) is placed between a housing (100) and a clamp (300), and the inside and outside of the branch hole (P1) are clamped to stably close (seal) the branch hole (P1).

[0109] In addition, the center of the branch hole (P1) and the center of the housing (100) are aligned by the anti-slip unit (500) to accurately guide the clamping position.

[0110] In addition, insertion of the plugging device is easy by matching the pressure inside the pipe (P) and the internal pressure of the plugging device by the pressure valve (600).

[0111]

[0112] While preferred embodiments of the present invention have been described in detail, the technical scope of the present invention is not limited to the aforementioned embodiments and should be interpreted in accordance with the scope of the patent claims. Those skilled in the art should recognize that numerous modifications and variations are possible without departing from the scope of the present invention.

[0113] For example, in the above description, water pipes were used as an example, but this is not particularly limited and can be applied to various types of pipes such as industrial water cooling pipes, gas pipes, and oil pipes.

[0114] Additionally, the present invention can also close a branch hole in a general closed pipe through which no fluid flows.

[0115] [Explanation of symbols]

[0116] A - Plugging device

[0117] 100 - Housing 200 - Cam Guide

[0118] 300 - Clamp 400 - Rubber packing

[0119] 500 - Anti-rollover unit 600 - Pressure equalizing valve

[0120] B - Elevator Unit

[0121] P - Pipe P1 - Branch hole

Claims

1. In a plugging device for a non-stop method for closing a branch hole formed in a pipe, A housing that surrounds the outer surface of the pipe so as to close the branch hole, wherein a clamp insertion hole is formed; a cam guide installed in the housing so as to face the clamp insertion hole; and A plugging device for a non-stop flow method, characterized in that it includes a clamp that is installed in the clamp insertion hole of the housing and is pulled out and compressed by the cam guide and cam operation to fix the inner surface of the pipe.

2. In paragraph 1, The above clamp insertion hole is, A plugging device for a non-stop flow method, characterized by comprising a first clamp insertion hole formed of a female screw and a second clamp insertion hole having a relatively larger inner diameter than the first clamp insertion hole.

3. In paragraph 2, The above clamp, A plugging device for a non-uniform flow method, characterized in that it comprises a cam driver having a cam profile and a through hole formed therein that are inserted into the second clamp insertion hole and coupled with the cam guide, and a rotating body having a male screw formed therein that is rotatably installed in the through hole of the cam driver and is screw-coupled with the first clamp insertion hole.

4. In paragraph 3, A plugging device for a non-stop flow method, characterized in that a catch groove is formed at the bottom of the above-mentioned through hole, and a ring groove is formed on the above-mentioned rotating body to which a catch jaw and a snap ring are fixed to be engaged with the catch groove.

5. In paragraph 4, The above cam profile is, A plugging device for a non-stop flow method, characterized in that it comprises a first cam that raises and lowers the cam driving body by forward and reverse rotation of the rotating body, and a second cam that rotates the cam driving body by forward and reverse rotation of the rotating body.

6. In paragraph 1, A plugging device for a non-stop method, characterized in that it further comprises a rubber packing installed at the bottom of the housing.

7. In paragraph 1, A plugging device for a non-stop flow method, characterized in that an anti-slip unit insertion hole is formed in the above housing, and an anti-slip unit is installed in the anti-slip unit insertion hole.

8. In paragraph 7, The above anti-slip unit is, A plugging device for a non-stop flow method, characterized by comprising a drive cam assembly that is screw-connected to the above-mentioned anti-push unit insertion hole and is raised and lowered by forward and reverse rotation, a guide installed in the housing, a slider that is slidably installed in the guide and has a driven cam corresponding to the drive cam assembly formed therein, and a return spring that returns the slider.

9. In paragraph 1, A plugging device for a non-stop flow method, characterized in that a dynamic pressure valve insertion hole is formed in the above housing, and a dynamic pressure valve is installed in the dynamic pressure valve insertion hole.

10. In paragraph 9, The above-mentioned pressure valve is, A plugging device for a non-stop flow method, characterized by comprising a valve seat formed in the above-mentioned dynamic pressure valve insertion hole, a valve body for opening and closing the valve seat, a valve spring for elastically supporting the valve body, and a closing cap for fixing the valve spring and having an inlet hole formed therein.

11. In paragraph 1, A plugging device for a non-stop method, characterized in that it further comprises an elevating unit for operating the plugging device for the non-stop method.

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