JP3033479U - Fixture for draining pipe construction with nail holes in the reinforcing ribs - Google Patents

Abstract

(57) [Abstract] [Purpose] A pipe construction fixture used for fixing an underground drainage pipe to a formwork during the construction of a concrete retaining wall can be easily fixed to the formwork, and can be contacted. It can be easily removed without damaging the concrete surface. [Structure] On a narrow surface side of a truncated cone-shaped base portion 1, a cylindrical pipe fitting portion 2 having a smaller diameter than that surface is provided so as to project,
A fixture fitting portion 4 is provided which penetrates through the centers of the base portion 1 and the pipe fitting portion 2 and has a large diameter on the base portion 1 side and which constitutes a truncated cone-shaped connecting fixture fitting hole 3. In the fixture for draining water pipe construction, a plurality of radially arranged reinforcing ribs 8 connected to the fixture fitting portion 4, the vip fitting portion 2, and the base portion 1 are provided outside the fixture fitting portion 4, It is characterized in that a plurality of nail guide bodies 6 are provided through which nail holes 5 oriented in a direction perpendicular to the narrow side of the portion 1 are provided.

Description

[Detailed description of the invention]

[Field of Industrial Application] [0001] The present invention relates to a pipe construction fixture used for fixing a drainage pipe to be buried in a formwork in the construction of a concrete retaining wall. It can be easily fixed to the formwork by nailing and can be easily removed without damaging the concrete surface that was in contact.

[Prior Art] Conventionally, in the construction work of a concrete retaining wall, when fixing a drainage pipe to be buried in a formwork, a utility model registration No. 1515764 devised by the inventor of the present application and the applicant. (Utility Sho 58-10759), Utility Model Registration No. 1580143 (Act No. 59-16618), Utility Model Registration No. 1942487 (Act Heisei 4-55667), Utility Model Registration No. 1633368 (Act Kosho) 60-29499), and design registration No. 743026, design registration No. 751148, which are widely used. As shown in FIGS. 7 and 8, an example of these conventional drainage pipe fixing fixtures is a cylindrical pipe fitting with a diameter smaller than the narrow face side of the truncated cone base 1 A truncated cone-shaped connecting fixture having a large diameter on the side of the base portion 1 that penetrates through the centers of the base portion 1 and the pipe fitting portion 2 as well as forming the portion 2 This is a structure in which the tool fitting portion 4 is provided and a plurality of reinforcing ribs 8 are radially provided outside the fixture fitting portion 4.

This fixture for pipe construction has a frustoconical shape in order to facilitate separation from the concrete surface together with the formwork after the burying work of the drainage pipe is completed. It is structurally necessary to form the outer surface of the sloping surface. Conventionally, when fixing a fixture for pipe construction to the mold 13, as shown in FIG. 9, a hole 17 is made in the inclined surface of the base 1, or a hole 17 previously made in the inclined surface at the time of molding. It was fixed by hammering nails 7 from above.

[Problems to be Solved by the Invention] In the conventional fixture for drainage pipe construction, as shown in FIG. 9, at the time of construction, the nail 7 is attached to the form 13 from the hole 17 of the inclined surface of the base 1. Although it is driven in and fixed, at the construction site, while holding the fixture for draining pipe construction in place with one hand, the nail 7 that is shaken and unstable in direction is driven, so the direction in which the nail 7 is driven becomes uneven. Positional deviation is likely to occur, and it was particularly difficult to obliquely strike the head surface of the nail 7 so as to be flush with the inclined surface. Also, when driving from the right angle direction, the head of the nail 7 that is driven in as illustrated in FIG. 9 projects, and the concrete 15 flows into the lower portion 18 of the head and hardens. Therefore, after completion of the retaining wall construction, fixing for pipe construction When removing the tool together with the formwork 13 from the concrete 15 surface, it becomes difficult to remove the base 1, and if the force for removing is increased, the pipe fixing fixture may be damaged or the nail 7 that was in contact with the base 7 Often, the lower part 18 of the head was scraped off and damaged by the concrete surface 15.

[Means for Solving the Problems] The present invention is an improvement of the conventional fixture for draining pipe construction, which has a diameter smaller than that of the truncated cone-shaped base portion on the narrow surface side. A cylindrical pipe fitting part is projected, and a truncated cone-shaped connecting fixture fitting hole is formed that penetrates the center of the base part and the pipe fitting part and has a large diameter on the base part side. In a fixture for draining water pipes that has a fixture fitting part, a plurality of radial reinforcements that are connected to the fixture fitting part, the pipe fitting part, and the base on the outside of the fixture fitting part. The rib is provided with a nail guide body having a nail hole extending in a direction perpendicular to the narrow side of the base portion.

That is, the nail 7 for fixing to the form 13 as in the conventional case is not driven through the hole 17 formed in the inclined outer surface of the base portion 1, but is used for burying the drainage pipe 14. At this time, along the reinforcing rib 8 between the pipe fitting portion 2 and the fixture fitting portion 4 fitted into the opening end portion of the drainage pipe 14, it is oriented in the direction perpendicular to the narrow surface side of the base portion 1. A plurality of nail guide bodies 6 are provided, and a nail hole 5 for driving a nail 7 into the nail guide body 6 is formed.

[Operation] When burying the drainage pipe, as shown in FIG. 6, between the pipe fitting portion 2 and the fixture fitting portion 4, which are fitted into the openings at both ends of the drainage pipe 14. The nail 7 is driven toward the form 13 from the nail hole 5 of the nail guide 6 provided integrally with the reinforcing rib 8 provided on the. Therefore, the nail 7 to be driven is not fitted into the nail hole 5 and does not fall out, the driving direction is stable, and the nail 7 can be easily driven in a predetermined direction while pressing the base portion 1 with one hand.

As shown in FIG. 6, the nail guide body 6 and the heads of the nails 7 are detached from the surface of the concrete 15 after the retaining wall construction is completed by removing the drainage pipe 14 which is fitted onto the pipe fitting portion 2. Since it fits into the openings at both ends and there is no protrusion on the concrete 15 side, the concrete 15 can be smoothly separated from the concrete 15 surface without damaging the contact surface of the concrete 15.

[Embodiment] One embodiment shown in FIGS. 1, 2 and 3 will be described. On the narrow surface side of the truncated cone-shaped base portion 1, a cylindrical pipe fitting portion 2 having a diameter smaller than that surface is provided so as to project, and the base portion 1 and the pipe fitting portion 2 are penetrated to penetrate the base portion. A fixture fitting portion 4 that forms a truncated cone-shaped connecting fixture fitting hole 3 having a large diameter on one side is provided, and the fixture fitting portion 4 is provided outside the fixture fitting portion 4. Also, a plurality of radial reinforcing ribs 8 that are connected to the pipe fitting portion 2 and the base portion 1 are provided. The plurality of reinforcing ribs 8 are provided with a plurality of nail guide bodies 6 penetrating nail holes 5 oriented in a direction perpendicular to the narrow surface side of the base portion 1, and the outer circumference of the end of the pipe fitting portion 2 is appropriately set. The tapered shape facilitates fitting and removal of the water drain pipe 14.

As shown in FIG. 4, the formwork connecting fixture 9 to be fitted into the connecting fixture fitting hole 3 is formed into a truncated cone shape, and the fixing screw 10 projects on the wide surface side and connects to the narrow surface side. A well-known formwork connecting fixture having a screw hole 11 for use is used.

Since the concrete retaining wall has a slope on the wall surface according to the height thereof, the embodiment shown in FIG. 5 is a fixture for drainage pipe construction used when constructing a retaining wall having a slope. 1 has a predetermined slope θ corresponding to the inclination of the mold 13, and as in the previous embodiment, the reinforcing ribs 8 radially provided on the outside of the fixture fitting portion 4 are penetrated to form a stand portion. 1 is provided with a nail guide 6 having a nail hole 5 which is oriented in a direction perpendicular to the narrow side of 1.

Next, an example of use of the present invention will be described with reference to FIG. The fixing screw 10 of the mold frame connecting fixture 9 is passed through the mold frame 13 provided in a vertical shape, and is tightened by a fixing nut 16 to fix the frame frame connecting fixture 9 to the mold frame 13. The formwork connecting fixture 9 is fitted with the connecting fixture fitting hole 3 of the fixture for drainage pipe construction according to the present invention, and from the nail holes 5 formed in the plurality of nail guide bodies 6. The nail 7 is driven toward the mold 13 to fix the drainage pipe processing fixture. The end of the connecting rod 12 is screwed into the connecting screw hole 11 of the formwork connecting fixture 9 and the drain pipe 14 is inserted into the connecting rod 12 to attach the end to the pipe fitting portion 2. Mating.

Next, the other end of the water draining pipe 14 is fitted to the pipe fitting portion 2 of a separate water draining pipe construction fixture, and is separately fixed to the form fitting connection in the connection fixture fitting hole 3. The tool 9 is inserted while being rotated, and the other end of the connecting rod 12 is screwed into the connecting screw hole 11. After that, the fixing screws 10 of the mold frame connecting fixture 9 are penetrated through the mold frame 13 having an inclined slope facing each other, and tightened with the fixing nuts 16, and a plurality of nail guide bodies provided on the reinforcing ribs 8 are provided. A nail 7 is driven into the formwork 13 from the nail hole 5 formed in 6 to fix the drainage pipe construction fixture. It goes without saying that the molds 13 facing each other can be attached in the same manner even when they are vertical.

After the concrete 15 is hardened, the fixing nut 16 is removed and the formwork 13 is removed, so that the formwork connecting fixture 9 and the fixture for draining pipe construction according to the present invention both have a truncated cone shape. It's easy to get rid of.

[Effect of the Invention] The present invention is used for burying a drainage pipe, and a plurality of reinforcing ribs are provided with a nail guide body. From the nail hole formed in the nail guide body toward the form, Since the nails for fixing are driven in a right angle direction, the workability of nailing is improved, and since the base can be firmly fixed to the exact position of the form, the embedding position of the drainage pipe to be buried and the slope of the The accuracy can be improved. Also, the nail guide body, which is the nailing part for fixing, and the nails that have been hammered in are placed inside the open end of the drainage pipe, so removal is easy, and the concrete surface after removal remains smooth. It is possible to improve the aesthetics of the finish.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of one embodiment of the present invention.

FIG. 2 is a plan view of the embodiment shown in FIG.

FIG. 3 is a bottom view of the embodiment shown in FIG.

FIG. 4 is a vertical cross-sectional view of a mold connecting fixture used in the present invention.

FIG. 5 is a vertical sectional view of another embodiment of the present invention.

FIG. 6 is a vertical cross-sectional view showing a state in which the present invention is used for drainage pipe construction.

FIG. 7 is a vertical sectional view of a conventional fixture for draining water.

8 is a plan view of the conventional fixture for draining pipe construction shown in FIG. 7. FIG.

FIG. 9 is a partially enlarged vertical cross-sectional view of a conventional fixture for drainage pipe construction used in the drainage pipe construction.

[Explanation of symbols]

 1 unit part 2 pipe fitting part 3 connection fixing tool fitting hole 4 fixing tool fitting part 5 nail hole 6 nail guide body 7 nail 8 reinforcing rib 9 formwork connection fixing tool 10 fixing screw 11 connection screw hole 12 connection Rod 13 Formwork 14 Drain pipe 15 Concrete 16 Fixing nut 17 Hole 18 Lower part of nail head

Claims (1)

[Utility model registration claims] 1. A truncated pipe-shaped base portion (1) is provided with a cylindrical pipe fitting portion (2) having a diameter smaller than that surface on the narrow surface side, and the centers of the base portion (1) and the pipe fitting portion (2) are aligned. A fixture for fitting a drainage pipe, which is provided with a fixture fitting portion 4 that forms a truncated cone-shaped connecting fixture fitting hole 3 that penetrates and is formed to have a large diameter on the side of the base portion 1. A plurality of radially extending reinforcing ribs 8 connected to the fixture fitting portion 4, the pipe fitting portion 2, and the base portion 1 on the outside of the joint portion 4 face in a direction perpendicular to the narrow surface side of the base portion 1. A fixture for draining pipe construction provided with fixing holes, characterized in that a plurality of nail guide bodies 6 penetrating the nail holes 5 are provided in a protruding manner.