JP5509177B2 - Method for confirming and inspecting the attachment state of a close-contact core in a water pipe branch perforation from a water pipe and the like - Google Patents

Description

  In the present invention, when connecting a water supply pipe to a distribution pipe so that water is branched and supplied to a general household or other customers from a distribution pipe that is a main pipe for water supply, Closed core mounting state in water pipe branch perforations from water pipes, etc. that can check and check the mounting state of close cores that are forcibly attached to the inner edge of the water pipe branch perforations to prevent rust, etc. The present invention relates to a confirmation inspection method and a confirmation inspection apparatus thereof.

  In order to supply each customer with water from a distribution pipe, which is a main pipe for waterworks, a water supply pipe leading to each customer is branched and connected from the distribution pipe through a watering plug with a saddle. In other words, for the branch connection, a water faucet with a saddle is attached at the branch point, the water faucet body is opened and closed, the water pipe branch perforation to the water distribution pipe is connected, and the water pipe is connected to the water faucet body. In addition, in order to prevent rust that may arise from the perforated inner edge of the water supply pipe branch, a rust-preventing adhesive core that shuts off the water supply and the inner perimeter of the water supply pipe is forced into the water supply pipe perforation. Inserting.

  However, if this tightly-fitting core is not properly fitted in the water pipe branch perforation, it will cause rust on the perforated end face of the water pipe branch perforation, leading to red water and poor water discharge. An accompanying abnormal sound is also generated. Then, the water distribution pipe must be temporarily cut off, and a series of construction work such as excavation exposure, re-drilling, rust removal, and adhesion core installation at the defective part must be carried out again. As a result of water outages, it will cause great inconvenience to neighboring residents.

  In view of such a current situation, it is necessary to carry out secure attachment of the contact core, confirmation inspection of the attachment state, etc. after the work is completed. For example, a water distribution pipe branch port protection structure, a branch port protection bush, and a protective bush mounting method disclosed in Patent Document 1, and a close core locking method and a lock tool for a close core insertion fixture shown in Patent Document 2 This is an endoscope for a tubular body disclosed in Patent Document 3. The protective bush according to Patent Document 1 is attached to the protective bush by temporarily locking the protective bush to the branch pipe portion by rotating the protective bush at a specific phase position and then rotating it at a predetermined angle. It is assumed that the protective bush is fixed by causing the water-swellable rubber layer provided on the bush to swell and absorb water. The close contact core according to Patent Document 2 has a locking ring having an expandable / contractible flange body attached to the front end of the close contact core insertion fixture, and the flange body is widened at the bottom end of the close contact core to expand the front end of the insert fixture. It is assumed that the close contact core can be locked to the portion, and the locked close contact core is forcibly press-fitted into the perforated portion. An endoscope according to Patent Document 3 includes a reflecting mirror that is inclined and opposed to a predetermined angle at an opening portion of an endoscope body that is inserted into a tube body, and a light emitting unit that irradiates the inside of the tube body. Suppose that

JP 2007-192308 A JP 2008-164047 A Japanese Utility Model Publication No. 7-34412

  According to the mounting method using the protective bush described in Patent Document 1 described above, the concave portion that passes through the locking portion provided in the branch pipe portion is formed in the protective bush, and the protective bush after passing through the branch port is rotated at a predetermined angle. Therefore, the positioning of the locking portion and the recess is necessary and troublesome, and providing a water-absorbing swellable rubber layer results in a complicated configuration. Even if the close contact core of Patent Document 2 is inserted into the water faucet water inlet by being attached to the insertion fixture by the flange body of the locking ring, Is not limited. Even if the endoscope of Patent Document 3 can clearly see the inside of the tube, it must be inserted into the tube, moved to the branch port position, and operated to rotate, etc. It is necessary to form an opening for the tube body, and in some cases, it is necessary to perform a water shut-off process even temporarily, and since the endoscope itself is expensive, it cannot be used easily at the work site.

  Therefore, the present invention was created in view of the above-described conventional circumstances, and its purpose is for rust prevention to be forcibly attached to a water pipe branch perforation drilled in the water pipe when the water pipe is connected to the water pipe. It is now possible to check the installation state of the close-contact core without having to shut off the water distribution pipe, and the check inspection can be easily performed by directly visualizing the branch point immediately after work at the work site. The present invention relates to a method for confirming and inspecting the state of attachment of an adhesive core in a water pipe branch perforation from a water pipe or the like, and a confirmation inspection device therefor.

In order to solve the above-described problems, in the method for confirming and checking the state of attachment of the close-contact core in the water pipe branch perforation from the water pipe or the like according to the present invention, the water pipe (including public pipes and private pipes, the same shall apply hereinafter) The water supply pipe branch perforation is made by the perforation port 35 in the water plug with a saddle 20 that communicates with the water supply pipe branch perforation H perforated in the water distribution pipe B and connects the water supply pipe P to the branch portion of the water supply pipe P in B. A sight-proof viewing window 3 made of a transparent material that is watertightly attached to the perforation port 35 so as to allow the inside of the perforation port 35 to be seen through. The illumination portions (11, 14) are inserted and arranged, and the inside of the perforation opening 35 is illuminated to visually check the mounting state of the contact core C.
The illumination portions (11, 14) can be configured as the light guide wire 14 that can be irradiated on the illumination bulb 11 or the tip side.
In addition, in the confirmation inspection apparatus used for this confirmation inspection method, the mounting base 1 that is watertightly attached to the perforation opening 35 in the water faucet body 20 with a saddle, and the perforation attached to the attachment base 1 are perforated. A transparent see-through window 3 provided with an illumination support portion 6 disposed in the mouth 35, and illumination portions (11, 14) that illuminate the inside of the perforation opening 35 through the illumination support portion 6. And an internal illumination mechanism 10 connected to the device.
The see-through viewing window 3 reaches the inside of the perforation port 35 with the stepped fitting step 4 fitted into the window opening 2 formed in the mounting base 1 from the inner side of the mounting base 1 at the top. The illumination support portion 6 is integrally formed of a transparent material by arranging the illumination support portion 6 in the lower part, and the illumination support portion 6 is provided with an insertion hole 7 for inserting and arranging the illumination portions (11, 14) of the internal illumination mechanism 10. It can comprise by providing.
The mounting base 1 and the see-through viewing window 3 can be integrally formed of a transparent material.
The illumination portions (11, 14) of the internal illumination mechanism 10 can be configured as the light guide wire 14 that can be illuminated on the illumination bulb 11 or the tip side.

In the check inspection method and the check inspection apparatus for the close contact core in the water pipe branch perforation from the water pipe or the like according to the present invention configured as described above, the water pipe P is branched from the water pipe B. A rust-preventing adhesive core C attached to a water supply pipe branch perforation H, which is sometimes perforated in the water distribution pipe B, is used for perforation and insertion in a saddle-equipped water faucet 20 attached to the branch part. It is confirmed to check the wearing situation by making it visible directly from.
The mounting base 1 is attached to the perforation opening 35 of the saddle-equipped water faucet 20 so that the transparent see-through viewing window 3 is positioned in the perforation opening 35, and the internal illumination is inserted and arranged in the see-through viewing window 3. The illumination portions (11, 14) of the mechanism 10 illuminate the inside of the perforation port 35, and directly recognize the attachment state of the contact core C to be attached to the water supply pipe branch perforation H.
The integrated mounting base 1 and the fluoroscopic viewing window 3 facilitate handling, and the lighting in the perforation port 35 by the internal lighting mechanism 10 and the contact core C are attached to the perforation port 35 of the water faucet 20 with a saddle. Makes the installation check work more smoothly.

  Since the present invention is configured as described above, when the water supply pipe P is connected to the water distribution pipe B, the adhesion core C for rust prevention that is forcedly attached to the water supply pipe branch perforation H drilled in the water distribution pipe B is mounted. The state can be confirmed and inspected by directly viewing the state from the perforation port 35 of the saddle-equipped water faucet 20 for branching the water supply pipe P. In addition, the confirmation inspection can be performed in connection with the opening / closing operation of the on-off valve 38 in the saddle-equipped water faucet body 20 without shutting off the water distribution pipe B. This can be done easily by directly illuminating and visually recognizing.

  That is, in the present invention, in order to branch the water supply pipe P in the water distribution pipe B, the water supply pipe branch perforation H in the water faucet with saddle 20 attached to the water distribution pipe B is drilled. The lighting bases (11, 14) are inserted into the transparent viewing window 3 made of a transparent material, which is watertightly attached to the perforation port 35, so that the inside of the perforation port 35 for mounting C can be seen through the mounting base 1. This is because the inner illumination mechanism 10 is arranged to illuminate the inside of the perforation opening 35 to visually recognize the mounting state of the close contact core C. As a result, it is possible to directly check the mounting state of the contact core C without shutting off the water distribution pipe B, and to confirm immediately after the work is performed, for example, for reworking when an incorrect installation of the mounting state at a later date is found. Therefore, it is possible to fulfill the responsibility of water supply to the user without requiring water-discharging treatment work for the water distribution pipe B.

  The saddle-equipped water faucet 20 includes a mounting base 1 that is watertightly attached to the perforation port 35 and a transparent support unit 6 that is attached to the mounting base 1 and disposed in the perforation port 35. Since it has the illumination part (11, 14) which illuminates the inside of the perforation port 35 via the illumination support part 6 through the illumination support part 6, and is provided with the internal illumination mechanism 10 connected to the observation window 3, the water supply By using the perforation port 35 for perforating the pipe branch perforation H and for attaching the close-contact core C, the inside of the perforation port 35 is illuminated and directly viewed, and the attachment state of the close-contact core C is directly determined. In addition, it is possible to confirm and inspect reliably.

  By integrally forming the mounting base 1 and the see-through viewing window 3 with a transparent material, these can be easily attached to the perforation port 35 at the work site, which helps to simplify the work and make handling easier. Furthermore, the charging arrangement of the illumination portions (11, 14) of the internal illumination mechanism 10 can be facilitated.

  The illumination parts (11, 14) of the internal illumination mechanism 10 are the front end side of the light guide wire 14 that guides the illumination by the illumination bulb 11 or the illumination bulb 11 arranged at a remote location, and the illumination support portion 6 is made of a transparent material. In combination with the arrangement in the perforation port 35, the close contact core C of the water pipe branch perforation H in the lower part of the perforation port 35 can be accurately illuminated, and the mounting state thereof can be confirmed visually.

  In addition, the code | symbol attached | subjected in each means of the means for solving said subject and the effect of invention was attached | subjected in order to make easy reference with the part which shows each structure part described in drawing. The present invention is not limited to these descriptions, structures, shapes, and the like indicated by reference numerals and the like in the drawings.

It is a longitudinal cross-sectional view of the use condition along the piping direction of the water pipe in one form for implementing this invention. It is the longitudinal cross-sectional view when attaching a close_contact | adherence core to the water supply pipe branch perforation of a water distribution pipe similarly, and connecting the water supply pipe. It is a schematic sectional drawing which similarly shows an example of a use procedure, The (A) is when attaching a water-container with a valve to a water distribution pipe, (B) is when perforating a water supply pipe branch perforation with a perforator, (C ) When the drilling machine is removed after drilling the water pipe branch drilling, (D) when the inserter with a tightly attached core attached to the tip is attached to the water stopcock with valve, and (E) by the insertion machine When forcibly inserting the close-contact core into the water pipe branch perforation, (F) after attaching the close-contact core, when removing the insertion machine, (G) confirming the attachment state of the close-contact core, and after inspection, the water supply pipe Is connected. It is sectional drawing of the use condition in other embodiment similarly.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment for carrying out the present invention will be described below with reference to the drawings. Reference numeral 1 shown in the figure denotes a saddle-attached portion mounted on a public pipe, a private pipe, etc. It is an attachment base that is detachably attached and fixed to the perforation opening 35 in the faucet body 20. The mounting base 1 is provided with a transparent see-through window 3 made of, for example, synthetic resin that allows the inside of the hole 35 to be directly viewed with the hole 35 closed. Then, together with illumination by the internal illumination mechanism 10 disposed on the mounting base 1 or the perspective viewing window 3, the interior of the perforation port 35 is viewed through the perspective viewing window 3, and the water supply pipe B is perforated into the water pipe branch perforation H. The attachment state of the adhesion core C for preventing rust can be directly visually confirmed and confirmed.

  Thus, the confirmation inspection method and apparatus according to the present invention is mounted and implemented by using the perforated port 35 of the valve seat 31 in the saddle-equipped water faucet body 20, and the mounting base 1 has the perforated port. 35, a cap nut having a cap shape including a top wall portion and a peripheral wall portion so as to be watertightly closed by being screwed to 35, and a female screw to be screwed into a male screw of the perforation port 35 on the inner peripheral surface of the peripheral wall portion Is formed. After screwing into the perforation port 35, it is prevented from being detached even by the supply water pressure of the clean water.

  On the top wall portion of the mounting base 1, a see-through viewing window 3 is provided in a window opening 2 formed in the top wall portion. The see-through look window 3 in the illustrated example is provided in the window opening 2. By arranging the stepped fitting step 4 fitted from the inner side of the mounting base 1 at the upper portion and the illumination support portion 6 that reaches the inside of the perforation opening 35 at the lower portion, for example, transparent such as acrylic resin It is integrally formed with the material. The fitting step 4 has an outer diameter that is not larger than the inner diameter of the window opening 2 and the inner diameter of the window opening 2 so as to contact the inner surface of the top wall that is the periphery of the window opening 2. And a contact portion having a larger diameter than that. It is desirable that the fitting portion fits snugly into the window opening 2 and the abutting portion is formed so as to abut on the periphery of the window opening 2 without rattling. Further, as shown in the illustrated example, when the mounting base 1 is screwed to the perforation port 35, the lower surface of the fitting step portion 4 is joined to the upper end surface of the perforation port 35 in a watertight manner, for example, via a packing material 5, Water is prevented from leaking from the window opening 2 and the perforation opening 35.

  When the see-through viewing window 3 itself is fitted to the top wall portion of the mounting base 1 by the fitting step portion 4, the illumination support portion 6 protrudes downward from the mounting base 1, and the mounting base 1 is screwed into the hole 35. When it is stopped, it is disposed in the perforation port 35. When it is disposed, the length (high height) does not hinder the swinging opening / closing operation of the opening / closing valve 38 in the valve seat 31 of the saddle-equipped water faucet 20 described later. (See FIGS. 1 and 2). Further, when the on-off valve 38 is opened, it is immersed in the clean water, but the clean water is prevented from leaking from the window opening 2.

  The illumination support unit 6 has the illumination portions (11, 14) in the internal illumination mechanism 10 inserted and arranged in the interior thereof from the outside, and the illumination portions (11, 14) have light transmittance of the illumination support unit 6 itself. The water supply pipe branch perforation H in the water distribution pipe B, that is, the contact core C attached to the water supply pipe branch perforation H is illuminated. The placement of the illumination portions (11, 14) in the illumination support portion 6 is performed, for example, from the upper surface of the fitting step portion 4 to a position near the bottom portion of the illumination support portion 6 to the outside of the bottom portion of the illumination support portion 6. It is inserted in the insertion hole 7 formed so as not to exist. During illumination, the illumination is diffused by the light transmission and transparency of the illumination support 6 itself, and if necessary, a lens surface is formed on the outer surface of the illumination support 6 to scatter or focus the illumination on the water pipe branch perforation H. You may make it obtain an effect | action.

  The internal illumination mechanism 10 includes an incandescent bulb, an illumination bulb 11 such as an LED bulb / element, and a power source electrically connected to the illumination bulb 11. As shown in the figure, the power source 12 and the illumination bulb 11 are connected by an electric wire, and are turned on and off by a switch 13 disposed on the power source side, for example.

  FIG. 4 shows another embodiment. In this embodiment, the mounting base 1 and the see-through viewing window 3 are integrally formed of a transparent material, for example, a transparent acrylic resin. A female screw that is screwed to 35 is formed, and the illumination support portion 6 is provided on the cylindrical see-through viewing window 3 that is continuous with the top of the mounting base 1. By doing so, it is possible to save the trouble of separately forming and combining the mounting base 1 such as a metal cap nut and the transparent viewing window 3 made of transparent acrylic resin, and the usability in the field can be improved.

  Furthermore, the internal illumination mechanism 10 in this embodiment has an illumination bulb 11 illuminated by a power source 12 on the proximal end side, and is inserted into each of the insertion holes 7 provided in the fluoroscopic viewing window 3 by one or plural. A light guide wire 14 such as an optical fiber having a predetermined diameter is inserted into the distal end side. By doing so, the inside of the perforation port 35 can be irradiated from the front edge or the front end side of each light guide wire 4, and the whole inside of the perforation port 35 can be irradiated by irradiating the plurality of light guide wires 14 from a plurality of locations of the see-through viewing window 3. There is an advantage that it can irradiate evenly.

  Note that the mounting base 1 or the perspective viewing window 3 and the internal illumination mechanism 10 may be formed separately and assembled on site or may be configured integrally.

  Here, the water distribution pipe B and the water faucet with saddle 20 attached to the water distribution pipe B will be described. The water distribution pipe B is piped from a water purification plant facility (not shown) which is a water supply source. For example, the pipes are piped up to the residential land of a general household, and the water supply pipes P for supplying clean water from the water distribution pipes B to the individual doors are respectively connected to the water supply plugs 20 with saddles attached to the water distribution pipes B. Branch connection. The saddle-equipped water faucet body 20 is attached to a portion of the distribution pipe B to which water supply is to be branched and supplied. The screw-type saddle 21 having an opening 24 and the saddle 21 are provided. The valve seat is provided with an opening / closing valve 38 that is connected to the base portion 32 so as to cover the opening portion 24 and swings by an external operation so as to open and close each of the water supply pipe port 34 and the perforation port 35 communicating with the opening portion 24. 31.

  The saddle 21 includes a lower saddle portion 22 disposed along the lower side of the water distribution pipe B, and an upper saddle portion 23 disposed along the upper side of the water distribution pipe B and having an opening 24 having a predetermined size. Are attached to the water distribution pipe B by being screwed by mounting flanges 25 that are provided in the shape of blades and face each other.

  Further, the valve seat 31 is provided with a water supply pipe port 34 in one of the directions orthogonal to the water distribution pipe B in a base part 32 screwed onto the upper saddle part 23, and a perforation port 35 is provided directly above the water distribution pipe B. The provided valve housing 33 is integrally formed, and in this valve housing 33, a water absorption communication port 36 communicating with the water supply pipe port 34 is an open end, and each of the perforation port 35 and the water supply pipe port 34 is provided. A cylindrical on-off valve 38 having a perforation insertion hole 37 communicating therewith is formed in the cylinder portion wall so as to be swingable about the central axis of the on-off valve 38, and a water supply pipe 34 Is constituted by connecting an operating shaft 39 arranged outside the valve housing 33 on the opposite side to an on-off valve 38. Each of the water supply pipe port 34 and the perforation port 35 is formed with a male screw around the opening, and the water supply pipe P is connected to the water supply pipe port 34, and the water supply pipe B is branched to the water distribution pipe B at the perforation port 35. A drilling machine 40 for drilling the drilling hole H, an insertion machine 50 for attaching the tight core C to the water supply pipe branching drilling hole H after drilling, and the like are connected, and screwed by a cap plug F which is a cap nut after the operation is completed. It is supposed to be blocked.

  Next, a procedure for confirming whether or not the close contact core C is mounted in the normal position on the water supply pipe branch perforation H perforated when the water supply pipe P is branched and connected to the water distribution pipe B will be described with reference to FIG. In order to supply clean water to each house, a saddle-equipped water faucet body 20 is attached to a branch portion of the water distribution pipe B to which the water supply pipe P connected to the water distribution pipe B is to be branched (see FIG. 3A). After the perforator 40 is watertightly attached to the perforation port 35 of the valve seat 31 in the water stopper body 20 with the saddle, the on-off valve 38 is opened by swinging the operation shaft 39 and the perforation insertion hole 37 is formed. 35, the water supply pipe branch perforation H is drilled in the water distribution pipe B by the drill 41 of the drilling machine 40 (see FIG. 3B). After perforating the water supply pipe branch perforation H, the perforator 40 is removed with the on-off valve 38 closed (see FIG. 3C), and the insertion rod 51 is closely attached to the distal end of the insertion rod 51, for example. The insertion machine 50 attached without removing the core C is attached to the perforation port 35 in a watertight manner (see FIG. 3D). Next, the insertion rod 51 of the insertion machine 50 is lowered to forcibly insert the contact core C into the water supply pipe branch perforation H. At the time of this insertion, the lower end edge of the upper large-diameter portion on the outer surface of the contact core C is locked to the outer peripheral edge of the water pipe branch perforation H, while the stainless steel charging and fixing cylinder C1 combined in the contact core C is inserted. Is further lowered to expand the lower diameter portion of the lower part of the close contact core C and engage with the inner peripheral edge of the water supply pipe branch perforation H (see FIG. 3E). Thereafter, the lower end of the insertion rod 51 is separated from the contact core C with the diameter reduced, so that only the insertion rod 51 is lifted while leaving the contact core C, and the on-off valve 38 is closed, and then the insertion machine 50 is removed (FIG. 3). (See (F)).

  As shown in FIG. 1 and FIG. 2, the contact state of the contact core C is confirmed and inspected at the stage where the contact core C is attached to the water pipe branch perforation H. The mounting base 1 is attached to the perforation port 35 by screwing or the like, and the internal illumination mechanism 10 is connected to the see-through viewing window 3, and then the on-off valve 38 is opened to close the contact core C in the water distribution pipe B. The inside of the perforation port 35 is illuminated, and the mounting state of the contact core C is confirmed by directly looking into the fluoroscopic viewing window 3. If it is mounted in the correct position, the mounting operation of the contact core C is completed, and if it is tilted or distorted, another mounting operation of the contact core C is performed again after removal.

  After the confirmation inspection, the opening / closing valve 38 is closed, the mounting base 1 and the internal illumination mechanism 10 are removed, the perforation port 35 is closed with the lid plug F, and the water supply pipe P is connected to the water supply port 34 (see FIG. 3 (G)), or the water supply pipe port 34 is closed with a cap F for connection of the water supply pipe P at a later date.

B ... Water distribution pipe C ... Adhering core C1 ... Loading fixed cylinder F ... Lid plug H ... Water supply pipe branch perforation P ... Water supply pipe 1 ... Mounting base 2 ... Window opening 3 ... Perspective viewing window 4 ... Fitting step 5 ... Packing material 6 ... Illumination support part 7 ... Insertion hole 7
DESCRIPTION OF SYMBOLS 10 ... Internal illumination mechanism 11 ... Illuminating light bulb 12 ... Power supply 13 ... Switch 14 ... Light guide wire material 20 ... Saddle with a saddle 21 ... Saddle 22 ... Lower saddle part 23 ... Upper saddle part 24 ... Opening part 25 ... Mounting flange 31 ... Valve seat 32 ... Base part 33 ... Valve housing 34 ... Water supply pipe port 35 ... Perforation port 36 ... Water supply communication port 37 ... Perforation insertion hole 38 ... Opening / closing valve 39 ... Operating shaft 40 ... Punching machine 41 ... Drilling drill 50 ... Insertion Machine 51 ... Insertion rod

Claims (6)

  Rust stopper attached to the water supply pipe branch perforation by the perforation port in the water-divided plug body with a saddle that communicates with the water supply pipe branch perforation drilled in the water distribution pipe and connects the water supply pipe to the branch portion of the water supply pipe in the water distribution pipe In the confirmation inspection method for confirming the mounting condition of the close-contact core for lighting, the illumination part is inserted and arranged in a transparent viewing window made of a transparent material that is watertightly attached to the perforation opening so that the inside of the perforation opening can be seen through. A method for confirming and checking the state of attachment of a contact core in a water pipe branch perforation from a water pipe or the like, characterized by illuminating the inside of the perforation opening and visually checking the attachment state of the contact core.   The method for checking and inspecting the state of attachment of a close-contact core in a water pipe branch perforation from a water pipe or the like according to claim 1, wherein the illumination part is an illumination light bulb or a light guide wire that can be irradiated on the tip side.   Rust stopper attached to the water supply pipe branch perforation by the perforation port in the water-divided plug body with a saddle that communicates with the water supply pipe branch perforation drilled in the water distribution pipe and connects the water supply pipe to the branch portion of the water supply pipe in the water distribution pipe In a confirmation inspection device for confirming and confirming the mounting state of a close-contact core for an installation, a mounting base that is watertightly mounted on a perforated opening in a water faucet body with a saddle, and an illumination that is attached to the mounting base and disposed in the perforated opening A water pipe or the like having a transparent see-through window provided with a support part and an internal lighting mechanism having an illumination part for illuminating the inside of the perforation through the illumination support part and connected to the see-through view window Equipment for checking the attachment state of the close-contact core in water pipe branch perforations from   The perspective viewing window has a stepped fitting step that fits into the window opening formed in the mounting base from the inner side of the mounting base at the top, and a lighting support that reaches the inside of the perforation port at the bottom. The water supply from the water distribution pipe or the like according to claim 3, wherein the water supply unit is integrally formed of a transparent material by being disposed, and the illumination support portion is provided with a insertion hole for inserting and arranging the illumination portion of the internal illumination mechanism. A device for checking and inspecting the attachment state of the tight core in pipe branch drilling.   The apparatus for confirming and checking the attachment state of the close contact core in the water pipe branch perforation from the water pipe or the like according to claim 3, wherein the mounting base and the see-through viewing window are integrally formed of a transparent material.   The illumination portion of the internal illumination mechanism is an illumination bulb or a light guide wire that can be irradiated at the tip side. Confirmation of the state of attachment of the tight core in the water pipe branch perforation from the water pipe or the like according to any one of claims 3 to 5 Inspection device.

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