JPH10219659A - Water cut-off device for joint part of open channel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve water cut-off properties by preventing detachment of channel constitutional members from each other by external force working on a connecting part of the channel constitutional members. SOLUTION: A water cut-off member 20 having elasticity at least in the channel direction is arranged along insides of connecting end parts 14, 15 of channel constitutional members 11, 12. Thereafter, the water cut-off member 20 is fixed on the connecting end parts 14, 15 by a fixing means 30 on its side part, the adjacent channel constitutional members 11, 12 are connected to each other by a connector 40 free to be elastic at least in the channel direction and having a cushioning body 43, and extensible force working on the connector 40 is absorbed at the time when dislocation is caused at a position of the channel constitutional members.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water stop device at a connection portion of members constituting an open channel.

[0002]

2. Description of the Related Art There is a system in which a channel component formed in a fixed shape is continuously connected to an open channel. The components of the waterways have been butted at adjacent ends, connected to each other by connecting metal fittings, or connected to adjacent ends by a male and female fitting method. In either case, a suitable sealing means is provided between the connection ends.

[0003] However, if the positions of the waterway constituent members are displaced due to a change over time, or if the interval is widened due to an earthquake, water leakage easily occurs from the connection portion. If a leak occurs, the water level must be lowered and the leak point must be filled with joints. For this reason, there is a high risk that the waterway will be cut off during a severe earthquake.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to provide an open channel in which the channel components are continuously connected to each other by the external force acting on the connecting portion. In order to prevent the water from coming off, and to obtain the perfect water stoppage.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a water stoppage which has elasticity at least in a water channel direction and is arranged inside a water channel along a connection end of a water channel constituent member. A member, fixing means for fixing the water blocking member to the connection end of the adjacent channel component at both sides thereof, and at least a direction parallel to the channel direction when the position of the channel component is shifted from each other A connector having a shock-absorbing body that is extendable and retractable and that is capable of absorbing elongation force, and one end of the coupler is attached to one of the water channel components, and the other end of the coupler is attached to the other channel component. The water stopping device at the joint of the open channel is constituted by the attaching means.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A water stop device according to the present invention is provided between a connection end of members 11 and 12 constituting an open channel, that is, a joint 1.
3 to stop water leakage.

The water stopping device comprises a water stopping member 20 capable of sealing the joint portion 13 in a watertight manner, a fixing means 30 for fixing the water stopping member 20 to the water channel forming member, and an adjacent water channel forming member. It comprises an extendable connecting member 40 capable of holding the members 11 and 12 together, and an attaching means 50 for attaching the connecting member 40 to the water channel constituting members 11 and 12. In each figure, the arrows indicate the flow direction and the channel direction.

[0008] The water stop member 20 comprises water channel constituent members 11 and 12.
Are arranged inside the open channel along the connection ends 14 and 15 of FIG. Between the connection ends 14 and 15, a water stopping member 20 is provided.
The telescoping part 21 provided in is accommodated. In the case of the illustrated embodiment, the expansion and contraction portion 21 is formed in a bellows shape.
Steps 17 are formed in 4 and 15, and recesses for accommodating the bellows-like elastic portions 21 are provided therein. See FIG.

The water-stopping member 20 has the above-mentioned elastic portion 21 and fixing edges 22 and 23 for fixing which are continuously provided on both left and right (front and rear sides in the water channel direction). Further, the fixed edges 22 and 23 are provided with one or more watertight projections 24 and 25 in the circumferential direction, which are in close contact with the connection ends 14 and 15 and obtain a watertight effect. A cover plate 26 that protects the expansion and contraction portion 21 and, if it is bellows-like, covers the unevenness and flattens the side facing the flow can be provided inside the water blocking member 20. The cover plate 26 can be formed of a rustproof metal sheet such as stainless steel or a resin sheet.

The water stopping member 20 is fixed to the connecting ends 14 and 15 of the adjacent water channel forming members 11 and 12 by fixing means on both sides thereof together with the covering plate 26 having substantially the same width as the water stopping member 20. The fixing means 30 may be any known device or method. For example, the water blocking member 20 and the like can be screwed with an insert nut or embedded bolts. In addition, the water stopping member 20 and the like are connected to the connection end portions 14 and 15 by using a band-shaped member.
You may be tight.

In the illustrated example, insert nuts are embedded in the connection ends 14 and 15 as screw fasteners 31, and bolts are screwed therein as screw insertion tools 32, so that the water stopping member 20 and the cover plate 2 are inserted.
6 is fixed to each of the connection ends 14 and 15 together with the tightening plate 33. The screwing device 31 on the embedding side is the reinforcing bar 3
4 by appropriate means such as welding to
1 and 12 are securely fixed. The cover plate 26 fastened by the band-like or annular tightening plate 33 is a water channel constituent member 1.
U-shaped or notched bolt through-holes 27 to allow relative movement when the space between 1 and 12 moves in the direction of enlargement.
Having. See FIG.

The coupling member 40 has a buffer 43 which can be expanded and contracted at least in a direction parallel to the direction of the water channel when the positions of the water channel components are displaced from each other, and which can absorb the extension force. On the other hand, no special measures are taken for the compressive forces that can be exerted between the connection ends. However, it is free to use a buffer capable of absorbing the same compressive force, so that the situation in which the tubes collide with each other can be reduced or prevented.

[0013] The coupler 40 is configured to extendably expand and contract a first movable body 41 disposed on one connection end 14 side and a second movable body 42 disposed on the other connection end 15 side. When an external force is applied in a direction in which the two movable bodies 41 and 42 separate (extend), a buffer 43 capable of absorbing the external force is incorporated.

In the case of the embodiment, the first movable body 41 has a cylindrical shape, the second movable body 42 has a piston shaft shape which can move in the axial direction inside thereof, and the tip of the second movable body 42 and the first movable body 41 Between the shock absorbers 43 that can absorb their elongation force.
As a coil spring. Reference numerals 44 and 45 denote spring receivers provided on the movable bodies 41 and 42, respectively. In addition, the inside of the exemplary coupler 40 is sealed. Reference numeral 46 denotes a sealing member, which is provided on the cap 24 which is also a spring receiver.

Both ends of the coupling 40 are connected to the connection ends 14, 1
5 are respectively attached by attaching means 50. The mounting method is arbitrary, and it may be a smooth section or a rigid section. In the case of the embodiment, a configuration in which a pair of slides is used is adopted.
In other words, the end portions of the first and second movable bodies 41 and 42 are attached by the joint members 47 having a sliding structure rotatable around an axis perpendicular to the water channel direction and the radial direction. This node member 47 is composed of a shaft 48 and respective bearing bodies 49.
Consists of Therefore, the nodal member 47 also includes the waterway constituent member 11,
It does not break down because it absorbs complex movements, including 12 mutual shifts. Such attachment means 50 is used to
Are attached to the water channel constituent members 11 and 12.

The bearing body 49 is attached to the water channel constituent members 11 and 12 at its base 51 by attaching means 50. In the case of the embodiment, the attachment is performed by the same device and method as the fixing means 30 for bolting the base portion 51. Also in this case, of the screw fittings 31 such as insert nuts and the screw fittings 32 such as bolts, those which are embedded in the water channel constituent members 11 and 12 are provided with reinforcing bars 34.
It can be attached by means such as welding.

In the illustrated embodiment, FIGS. 1 and 2 show examples of a single channel having a substantially U-shaped cross section, but it is needless to say that the present invention is not limited to this. FIG. 3 shows an example of a substantially E-shaped double channel type channel component having a partition wall 52 at the center. In addition, the present invention can be applied to any open channel. In addition, there is an underdrain having an open channel and a structure in which a lid is provided, and the present invention can be sufficiently applied to such an underdrain.

[0018]

Since the present invention is constructed and operates as described above, it is possible to construct an open channel by connecting the water channel components in a continuous manner, and it is possible to prevent a time-dependent shift due to uneven settlement at the connection portion. It can absorb the external force caused by the earthquake to prevent the separation of the water channel components, and prevent water leakage by the water blocking member arranged between the connection ends of the water channel members, eliminating the risk of breaking the water channel. It works.

[Brief description of the drawings]

FIG. 1 is a cross-sectional explanatory view showing an embodiment of a water stop device at a joint of an open channel according to the present invention.

FIG. 2 is a plan view showing the inner surface of the above.

FIG. 3 is a cross-sectional view of a water channel constituent member having a cross-sectional shape different from that of FIG. 1;

FIG. 4 is a partially enlarged view of FIG. 2;

FIG. 5 is a sectional view taken along line VV of FIG. 3;

Claims (6)

[Claims] 1. A water stop device at a connection part of a member forming an open channel, which has elasticity at least in a water channel direction, and is disposed inside the open channel along a connection end of the channel member. Water-stopping member, and fixing means for fixing the water-stopping member to the connection end of the adjacent channel component at both sides.
When there is a shift in the positions of the water channel components, a coupling device having a buffer that can be expanded and contracted at least in a direction parallel to the channel direction and that can absorb the elongation force, and one end of the coupling device is formed as one of the water channel configurations. A water stop device at a joint portion of an open channel, comprising: mounting means for mounting to a member, and mounting the other end of the coupler to the other channel component member. 2. The water stop device for a joint part of an open channel according to claim 1, wherein the water stop member has the expandable portion and fixed edges provided on right and left sides as a fixing means. 3. The water stop device for a joint of an open channel according to claim 2, further comprising an elastic portion formed in a bellows shape. 4. The water stopping device for joints of an open channel according to claim 2, wherein a covering plate for protecting the expansion and contraction portion and flattening the side facing the flow is provided inside the water stopping member. 5. The coupling device includes a first movable body disposed on one connection end side and a second movable body disposed on the other connection end side, which are expandably and contractably combined. 2. The water stop device for joints in an open channel according to claim 1, wherein the water stop device has a structure incorporating a buffer capable of absorbing an external force when the external force acts in a direction in which the external force extends. 6. The open channel according to claim 1, wherein, among the nuts and bolts constituting the mounting means, those which are embedded in the channel component are welded to the reinforcing members of the channel component to increase the strength. Water stop device at the joint.