JPH0135036Y2 - - Google Patents

Description

[Detailed description of the invention] ``Purpose of the invention'' The present invention relates to the invention of a pipe inner surface repair band, which can appropriately repair the inner surface of a pipe body that has been damaged beyond its bending limit or has become considerably eccentric. It is an object of the present invention to provide a repair band that is easy to handle and can effectively respond to deformation, expansion and contraction, eccentricity, breakage, and external pressure of the pipe body after repair.

Industrial applications Repair technology for deformed and damaged pipe bodies.

Conventional technology When a pipe that has been installed is damaged or deformed, it needs to be repaired. Conventionally, the damaged or deformed part has been replaced with a new pipe. In the case of underground pipes, etc., this is done by excavating the buried soil layer.

Problems that the invention aims to solve However, it is clear that the conventional methods described above require a considerable amount of man-hours and expense, and especially in the case of buried pipes beneath a structure, the structure itself may be destroyed. There are many cases where it is practically impossible to employ such a person because it is necessary to do so.

"Structure of the invention" Means for solving the problem A flexible ring member that covers the repair area of the pipe body from the inside, and each divided unit ring located at both ends of the flexible ring member. The flexible ring member has a reinforcing rigid ring consisting of parts, and between the reinforcing rigid rings, a row of connecting pieces in which a plurality of connecting pieces are connected along the axial direction of the flexible ring member is connected to the flexible ring member. A pipe body inner surface repair band is characterized in that a plurality of reinforcing rods are arranged in a plurality of rows in the circumferential direction of the pipe, and a plurality of reinforcing rods are arranged between each of the above-mentioned rows of connecting pieces.

Function: The flexible ring member is appropriately folded, and since the reinforcing rigid ring is composed of unit ring parts and the connecting pieces and reinforcing rods are also composed of a large number of sets, the flexible ring member is appropriately carried into the pipe body. It can be assembled, and the assembled state can be adjusted to suit the shape of the part that requires repair, and can also be adapted to the deformation, expansion and contraction, bending, eccentricity, etc. of the tube body after installation.

When adjusted and installed, it can withstand external pressure such as ground water, and since it is installed along the inner surface of the pipe and only a small amount protrudes into the inner surface of the pipe, it is less likely to obstruct the flow of fluid within the pipe when repaired and installed. .

EXAMPLE To explain the specific embodiment of the present invention shown in the attached drawings, as shown in one example in FIG. Under such conditions that the seal between the joint mechanism 21 and the pipe body 20 is insufficient, the pipe body 20
The repair band of the present invention is applied from the inside of a flexible ring member 1 made of rubber or the like whose ends are joined to the inner surfaces of both tube bodies 20, 20, respectively.
and each tube 2 on the inner surface of the flexible ring member 1.
The flexible ring member 1 has reinforcing rigid rings 2, 2 which are positioned at the zero portion and are made up of divided unit ring members 2a, and there is a reinforcing rigid ring 2, 2 arranged between the reinforcing rigid rings 2, 2 in the axial direction of the flexible ring member 1. multiple connecting pieces 4
A plurality of connecting piece rows 14 are arranged in the circumferential direction of the ring member 1, reinforcing rod members 3 are incorporated between the connecting parts of these connecting pieces 4, and connecting pieces of these reinforcing rod members 3 are arranged in plural rows in the circumferential direction of the ring member 1. As an example, the fourth part is
A screw rod 1 inserted into the connecting piece 4 as shown in the figure
6 is provided protrudingly, and the nut 15 is screwed into the screw rod 16.
By rotating the connecting piece 4 of each reinforcing rod 3
The mounting length (length in the circumferential direction) can be adjusted.

Note that an adjustment bolt 5 is also provided between the connecting piece row 14 and the above-mentioned reinforcing rigid ring 2, and both tube bodies 2
The connection length is adjusted depending on the eccentricity between 0 and 20 or the deformation state. Also, tube body 20
As shown in the figure, the gap created between the joint member 21 and the joint member 21 is appropriately filled with filler 7, and the reinforcing rigid ring 2 is also constructed as shown in FIGS. A connecting bolt 8 is screwed between the adjusting seats 12, 12 to connect them, and an engaging piece 9 is provided between the circumferential ends of the unit ring body 2a.

To explain the operation of using the device according to the present invention as described above, the reinforcing rigid ring 2 is composed of divided unit ring parts 2a, and the connecting pieces 4 and the reinforcing rod members 3 are also divided. Since the flexible ring member 1 is made of a material such as rubber and can be folded as appropriate, it is obvious that it can be freely carried into the tubular body and set. In addition, when these items are assembled, it is possible to quickly adjust the setting to suit eccentricity or bending by adjusting the tightening level using the adjustment bolts as described above, and furthermore, even after setting, the condition can be variably adjusted as appropriate. It is possible to closely follow the progress of deformation and damage, and since the amount of protrusion toward the inner surface of the tube is small, there is also little resistance to the internal fluid.

``Effects of the invention'' According to the invention as explained above, it is possible to perform effective repairs from the inner surface of the pipe body, and it is possible to set the pipe body in a manner that can be freely and quickly adapted to the state of damage, deformation, or bending. Along with the deformation of the tube body after setting,
This means that it can appropriately follow eccentricity, bending, and other fluctuating conditions, and it has the effect of being able to be easily applied from the inside without relying on conventional repairs that require a lot of man-hours from the outside. This is a highly effective idea industrially and practically.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a vertical sectional side view showing the state of use of the invention, Fig. 2 is a front view of a part thereof, and Fig. 3 is a reinforcing rod connecting part thereof. FIG. In these drawings, 1 is a flexible ring member, 2 is a reinforcing rigid ring, 2a is a unit ring member thereof, 3 is a reinforcing rod, 4 is a connecting piece, 5 is an adjustment bolt, 7 is a filler, and 8 9 is a connecting bolt, 9 is an engaging piece, 12 is an adjustment seat, and 20 is a tube body.

Claims (1)

[Scope of utility model registration request] It has a flexible ring member that covers the repair area in the pipe body from the inside, and a reinforcing rigid ring that is located at both ends of the flexible ring member and is composed of divided unit ring members, and Between the reinforcing rigid rings, a plurality of connection piece rows in which a plurality of connection pieces are connected are arranged along the axial direction of the above-described flexible ring member in the circumferential direction of the above-mentioned flexible ring member. A tube inner surface repair band characterized in that a plurality of reinforcing rods are arranged between each row of connecting pieces.