JPH082134B2 - Terminal fixing device for corrugated pipes buried underground - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is buried underground for fixing the end of a corrugated pipe inserted into a through hole provided in a wall of a manhole, a handhole, or the like. The present invention relates to a terminal fixing device for a corrugated pipe.

(Prior Art) Conventionally, as shown in FIG. 8, one end of a corrugated pipe (5) is fixed to a through hole (4) provided in a wall (60) of a manhole or a handhole.

That is, one end of the corrugated pipe (5) is inserted with one end of the through hole (4) facing the opening, and the mortar (70) is placed in the gap between the corrugated pipe (5) and the through hole (4). The corrugated pipe (5) was screwed to the corrugated pipe (5) at one end thereof with an auxiliary tool (80) having a trumpet-shaped mouth end.

(Problems to be Solved by the Invention) However, according to such a conventional fixing means,
Especially, the work of filling the mortar (70) required a lot of work, and the workability was poor. Moreover, if the mortar (70) is not sufficiently filled, water cannot be stopped inside the manhole. For this reason, a water-stopping material (usually a material that mixes and solidifies two types of chemicals is used) is applied to the outer wall (60) of the manhole, but the work also requires time and effort. It took time to solidify, and the workability was poor.

The present invention has been made in view of such circumstances,
The present invention is intended to provide a terminal fixing device for a corrugated pipe to be buried in the ground, which can efficiently fix the corrugated pipe in a through hole provided in a wall of a manhole, a handhole, or the like. It is an object of the present invention to provide a terminal fixing device for a corrugated pipe that is buried in the ground, which can be surely fixed in the through hole so as not to do so and can easily have a water blocking structure.

The terminal fixing device according to the present invention can be used for both a corrugated tube in which irregularities of the outer surface of the tube are formed in a flat row and a corrugated tube in which irregularities are spirally formed. It is intended to provide a fixing device.

(Means for Solving the Problem) That is, the terminal fixing device according to the present invention is a terminal fixing device for an outer surface corrugated pipe that is inserted into a wall through hole, and is a member that locks to a wave of the corrugated pipe. A locking member having an abutment portion provided on the inner surface with a stop portion and abutting against the wall surface of the through hole; and a screw member having a locking portion for engaging the wave of the corrugated pipe provided on the inner surface and a screw portion provided on the outer surface. A nut member having a screwing portion screwed into the threaded portion of the screw member and having an abutting portion that abuts the wall surface of the through hole, and the locking member is locked to the corrugated pipe to penetrate the through hole. The nut member is screwed into the threaded portion of the screw member while being brought into contact with the wall surface of one end of the through hole, and the screw member is positioned at the other end of the through hole and locked to the corrugated pipe. It is characterized in that the corrugated pipe is fixed to the through hole with the locking member by screwing the corrugated pipe toward the end.

(Operation) In the terminal fixing device according to the present invention, the locking member is locked to the corrugated pipe and brought into contact with the wall surface at one end of the through hole, and the screw member is positioned at the other end of the through hole to form the corrugated pipe. The nut member is screwed into the threaded portion of the screw member in the state of being locked to, and the nut member is screwed toward the other end of the through hole so that the corrugated pipe is stretched and fixed in the through hole. The corrugated tube can be securely fixed to the through hole. In addition, a water-stop structure can be formed in which the locking member and the nut member are in contact with the wall surfaces at both ends of the through hole to prevent water from entering the manhole.

(Examples) Hereinafter, the present invention will be specifically described with reference to the examples shown in the drawings.

FIG. 1 shows an embodiment of a terminal fixing device according to the present invention, which comprises a locking member (1), a screw member (2) and a nut member (3). FIG. 2 shows a state in which a corrugated pipe (5) (hereinafter simply referred to as corrugated pipe (5)) having outer surface irregularities formed in a flat line is fixed to the through hole (4) by such a terminal fixing device. It is shown.

In the case of this embodiment, the locking member (1) is formed of two halves (1a) and (1b), and both ends are screw (1).
It can be stopped at 4). Each half (1a) (1
The inner surface of b) has a trough (5
A locking portion (11) is provided around which a ridge to be fitted into 1) is provided, and further on the outer side thereof, a brim-shaped contacting with the wall surface of one end (41) of the through hole (4) of the wall (60). A contact portion (12) is provided. In the above-mentioned embodiment, the protrusion of the locking portion (11) and the brim-shaped contact portion (12) are formed on the inner surface and outer surface of the half-split bodies (1a) (1b) over the entire circumference. However, the locking part (11) is not limited to this, and the locking part (11) may be fitted in the recess (51) formed on the outer periphery of the corrugated pipe (5). The contact portion (12) may have any structure as long as it can contact the wall surface of the one end (41) of the through hole (4). Further, the locking portion (11) may be sandwiched by the recesses (51) formed on the outer circumference of the corrugated pipe (5). 14) is unnecessary. This locking member (1) is
It is adapted to be attached to one end (41) of the through hole (4).

In the case of this embodiment, the screw member (2) is formed of two halves (2a) (2b), which is similar to the locking member (1), and is similar to the locking member (1). Each half body (2a)
On the inner surface of (2b), a locking portion (21) is provided, which is formed by surrounding a ridge that fits into a recess (51) formed on the outer circumference of the corrugated pipe (5). Furthermore, the outer surface is provided with a screw portion (22) formed as a male screw. This screw member (2)
Is attached to the other end (42) of the through hole (4). Regarding the shape of the locking portion (21), in the present invention, the protrusion is entirely formed on the inner surface of the half-split bodies (2a) (2b), as in the locking portion (11) of the locking member (1). The structure is not limited to the one formed over the circumference, but may be formed partially, as long as it can be fitted into the recess (51) formed on the outer circumference of the corrugated pipe (5). Good.

A nut member (3) is screwed into the screw portion (22) of the screw member (2). That is, on the inner peripheral surface of the nut member (3), a screwing portion (31) formed by forming a female screw to be screwed with the screw portion (22) formed of the male screw formed on the outer surface of the screw member (2) is provided. It is provided. further,
The other end (42) of the through hole (4) is provided at one end of the nut member (3).
Is provided with a collar-shaped contact portion (32) that contacts the wall surface of the. In the present invention, the brim-shaped contact portion (32) may be formed not only at one end of the nut member (3) over the entire circumference but also partially. That is, the contact portion (32) may have a structure capable of contacting the wall surface of the other end (42) of the through hole (4).

As shown in FIG. 3, the nut member (3) screwed into the screw portion (22) of the screw member (2) moves in the pipe axis direction of the corrugated pipe (5) by screwing. If the nut member (3) is screwed to the right in the drawing as shown, the corrugated pipe (5) can be fixed to the left in the drawing while being pulled in the through hole (4). It is like this.

FIGS. 4 to 7 show another embodiment of the present invention regarding the locking member (1) and the screw member (2), and the locking member shown in FIGS. 4 and 5 are shown. (1) and the screw member (2) are hinges, and the half halves (1a) (1b), (2a) (2
b) configured to open and close each other, the fourth
The figure shows a locking member (1) which is provided with a pivot (13) on a brim-shaped contact portion (12) and which opens and closes the half halves (1a) (1b), and FIG. 5 shows a thin portion (23). It shows a nut member (3) which is formed to open and close the half-split bodies (2a) and (2b). The locking member (1) and the screw member (2) shown in FIG. 6 and FIG. 7 are composed of C-shaped elastic bodies, and are fitted to the corrugated pipe (5) from the side by utilizing elasticity. It is designed to be inflated. Regarding the locking member (1) and the screw member (2) of the embodiment shown in FIG. 1, the half-split body (1a)
(1b) and half halves (2a) (2b) are provided with pins and pin holes on the mating surfaces to make it easier to align the half halves (1a) (1b), (2a) (2b) with each other. Good.

Now, such a locking member (1) and a screw member (2)
In order to attach the terminal fixing device composed of the above and the nut member (3) to the corrugated pipe (5) and fix the corrugated pipe (5) to the through hole (4), first, the corrugated pipe (5) ) Insert the nut member (3) from one end. Next, one end of the corrugated pipe (5) is inserted from the other end (42) of the through hole (4) provided in the wall (60) such as a manhole. A locking member (1) is provided at one end of the corrugated pipe (5) extending from one end (41) of the through hole (4).
The fitting portion (11) is fitted into the concave portion (51) formed on the outer circumference of the corrugated pipe (5) to be attached. Next, the contact portion (12) of the locking member (1) is brought into contact with the wall surface of the one end (41) of the through hole (4). In this state, the locking portion (21) of the screw member (2) is fitted into the recess (51) of the corrugated pipe (5) located near the wall surface of the other end (42) of the through hole (4). ,
Attach the screw member (2) to the corrugated pipe (5). Next, the nut member (3) that was first inserted through the corrugated pipe (5)
The threaded portion (31) of the threaded portion (22) of the screw member (2).
The nut member (3) is screwed in until it comes into contact with the wall surface of the other end (42) of the through hole (4). At this time, the corrugated pipe (5) is stretched in the through hole (4) and is securely fixed. Further, the locking member (2) and the nut member (3) are brought into contact with the wall surfaces at both ends of the through hole (4), so that a water blocking structure for preventing water from entering the manhole can be formed. Thus, the corrugated pipe (5) is fixed to the through hole (4) as shown in FIG.

It should be noted that a water blocking effect can be obtained by providing a packing of rubber or the like between the contact portions (21) and (32) of the locking member (2) and the nut member (3) and the wall surface of the through hole (4). It can be further improved. The packing may have a structure embedded in the contact portions (21) and (32) of the locking member (2) and the nut member (3).

(Effects of the Invention) As described above, in the terminal fixing device according to the present invention, the locking member is locked to the corrugated pipe and brought into contact with the wall surface at one end of the through hole, and the screw member is attached to the other end of the through hole. Position and lock with the corrugated pipe, screw the nut member onto the threaded portion of the screw member, and screw the nut member toward the other end of the through hole to draw the corrugated pipe toward the other end of the through hole. Since the corrugated tube is stretched and fixed to the through hole, the corrugated tube can be reliably fixed to the through hole. Further, the locking member and the nut member come into contact with the wall surfaces at both ends of the through hole, so that a water blocking structure for preventing water from entering the manhole can be easily obtained.

Further, the fixing work of the corrugated pipe does not require any skill and the conventional mortar work is unnecessary, so that the work efficiency is remarkably improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a terminal fixing device according to the present invention and a corrugated pipe, FIG. 2 is a cross-sectional view of a corrugated pipe fixed to a through hole, and FIG. 3 shows a screw member and a nut member. Sectional drawing which shows a screwing state, FIG. 4 is a perspective view which shows another example about a screw member, FIG. 5 is a perspective view which shows another example about a nut member,
FIG. 6 is a perspective view showing still another example of the screw member,
FIG. 7 is a perspective view showing still another example of the nut member, and FIG. 8 is a sectional view showing a state in which the end of the conventional corrugated pipe is fixed to the through hole. In the figure, (1) is a locking member, (2) is a screw member, (3) is a nut member, (4) is a through hole, and (5) is a corrugated pipe.

Claims (1)

[Claims] 1. A terminal fixing device for an outer corrugated pipe inserted through a wall through hole, wherein an abutment portion for engaging a wave of the corrugated pipe is provided on an inner surface and abutting a wall surface of the through hole. A locking member having a locking member, a locking member for locking the wave of the corrugated pipe provided on the inner surface, and a screw member having a screw portion on the outer surface, and a screwing portion screwed to the screw portion of the screw member. A nut member provided with an abutting portion that abuts the wall surface of the through hole, and the locking member is locked to the corrugated pipe to abut the wall surface at one end of the through hole, and the screw member The corrugated pipe can be used as a locking member by screwing the nut member into the threaded portion of the threaded member while being positioned at the end and locked to the corrugated pipe, and screwing the nut member toward the other end of the through hole. A terminal fixing device for a corrugated pipe to be buried underground, characterized in that it is fixed to a through hole.