JP3778449B2 - Underground fire prevention water tank - Google Patents

Description

  The present invention relates to an underground fire prevention water storage tank comprising a water tank body buried in the ground and a water pumping port extending from the water tank body to the ground, and a bag body disposed on the inner peripheral surface of the water tank body.

  Conventionally, in an underground fire prevention water storage tank equipped with a water tank body buried underground and a pumping port provided extending from the water tank body to the ground, the water tank body is horizontally long, and a lining composed of a sheet on the inner surface of the water tank body Is made into a bag shape (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 9-3989

  By the way, in the prior art, the water tank body is horizontally long, and a large space is required for installing the underground fire prevention water storage tank. In addition, there is a possibility that the pumping of the water tank cannot be reliably carried out, and the inner lining bag-like thing made of a sheet cannot be easily set on the inner surface of the aquarium main body, and there is a possibility that it will be peeled off from the inner surface of the aquarium main body, and the sheet will peel In addition, there is a problem that water cannot be easily drawn out from the outlet and there is a possibility that replacement of the lining bag shape may not be easy.

  The present invention has been made in view of the above-described problems of the prior art, and the object of the present invention is to install a water storage tank even in a narrow space, to surely pump water, The bag can be easily and reliably set in the water tank, the water is easily stored in the water bag, has a waterproof effect, and can withstand long-term water storage. It is intended to provide an underground fire prevention water tank that can be easily detached from and attached to the ground.

  In order to achieve the above object, the underground fire prevention water storage tank according to the present invention is a vertically long cylindrical body made of concrete, and an outer lid is placed on the upper part at the same level as the ground of the water outlet, An inner lid and a bag-attaching middle lid receiving frame are disposed below the outer lid, and a water storage bag is secured to the inner peripheral lower part of the bag-engaging middle lid receiving frame with a fixing band. A flange for locking to the water tank is formed in a lower part of the outer periphery, and a waterproof rubber cover is arranged on the outer periphery of the water pumping port.

  As mentioned above, the water tank body is made of concrete and has a vertically long cylindrical body. The outer lid is placed on the upper part of the water pumping outlet at the same level as the ground, and the inner lid and the bag are worn under the outer lid. An inner lid receiving frame is arranged, and a water storage bag is engaged with a fixing band at a lower inner peripheral portion of the inner bag receiving frame, and a flange for locking to a water tank is provided at an outer lower portion of the inner bag receiving frame. The water-proof rubber cover is formed on the outer periphery of the water pumping port, so that the water tank can be installed even in a small space, the water can be pumped up reliably, and the water bag is set in the water tank easily and securely. Underground fire prevention water tank that can be easily stored in the water bag, has a waterproof effect, can withstand long-term water storage, and can be easily detached from the water tank. It becomes.

  1 to 3 relate to an embodiment of an underground fire prevention water tank according to the present invention, FIG. 1 is a front sectional view of the underground fire prevention water tank, FIG. 2 is a side sectional view of FIG. 1, and FIG. It is explanatory drawing which shows the relationship between a latching middle cover receiving frame and a water storage bag.

In the figure, reference numeral 1 denotes an underground fire prevention water tank. The water tank 1 is composed of a water tank body 2 and a water outlet 4 extending from the water tank body 2 to the ground 3.
The water tank main body 2 is formed into a vertically long cylindrical body by connecting the concrete casings 5, 5,... Divided into a plurality of parts vertically, and the joint 6 of the concrete casings 5, 5 has a waterproof structure. For example, a coating material such as Moxy (trade name) is applied, and a rubber waterproof band 7 is inserted on the outer periphery of the joint 6. As the concrete of the concrete casing 5, for example, concrete that has been densified and waterproofed by mixing the MOXY (trade name) is used. Further, a substantially whole surface of the inner peripheral wall of the water tank body 2 is subjected to waterproofing or water repellent treatment, and a substantially whole surface of the outer peripheral wall of the water tank body 2 is subjected to tar epoxy coating to prevent corrosion. Are provided with multiple steps of footrests 8, 8,...

The water outlet 4 is mainly composed of an outer lid 9 at the same level as the ground 3, an outer lid receiving frame 10 on which the outer lid 9 is placed, an inner lid 11 disposed below the outer lid 9, It is comprised with the bag engaging middle cover receiving frame 12 which mounts the lid | cover 11. As shown in FIG.
The outer lid receiving frame 10 is placed on the same level as the ground 3 by stacking height-adjusting concrete frames 13, 13,... Above the uppermost concrete casing 5, and the outer lid receiving frame 10 is placed on the outer lid 9. Is placed. A large number of butyl rubber packings 14, 14,... Are attached to the joints of the stacked height adjusting concrete frames 13, 13,... And the boundary portions between the outer cover receiving frame 10 and the height adjusting concrete frames 13 for waterproofing. Has been.

  A screw 15 is screwed into the inner peripheral upper portion of the inner bag receiving frame 12 to be engaged with the bag so that the inner lid 11 is screwed, and a recessed groove in which a water storage bag 16 is engaged in a substantially lower portion of the inner periphery. 17 is formed, and a flange 18 for locking to the aquarium body 2 is formed at a lower peripheral portion. .. Are also inserted into the boundary portion of the flange 18 and the height-adjusting concrete housing 13 and the boundary portion of the uppermost concrete housing 5 for waterproofing.

  A screw 19 is screwed on the side peripheral surface of the inner lid 11 so as to be screwed to the screw 15 of the inner lid receiving frame 12 for wearing the bag, and a handle 20 is provided at a substantially central portion of the upper surface of the inner lid 11. ing. A rubber waterproof band 21 is inserted in the uppermost portion of the screw 19 on the side peripheral surface of the inner lid 11 for waterproofing.

  The water storage bag 16 is, for example, a plastic bag, and the size of the bag is the size of the inner space of the water tank main body 2. A plastic fixing band 22 is formed in the groove 17 of the inner lid receiving frame 12 for wearing the bag. Be attached.

  23 is a waterproof rubber cover, which is inserted into the outer periphery of the water outlet 4 comprising the flange 18, the height-adjusting concrete frame 13, 13,... The lower part is fixed by stainless steel retaining bands 24, 24.

  It is the underground fire prevention water tank 1 which consists of the above structures, Comprising: A vertical hole is dug in the ground 3, and the concrete frame 5, 5, ... is piled up sequentially from a bottom plate, and the water tank main body 2 is assembled. And the water pumping-out opening 4 is formed in the upper part of the water tank main body 2, and the underground fire prevention water storage tank 1 is completed. Since the water tank main body 2 is a vertically long cylindrical body, the underground fire prevention water storage tank 1 can be installed even in a narrow space.

  The water storage bag 16 is inserted into the concave groove 17 of the inner lid receiving frame 12 attached to the bag with the upper portion of the water storage bag 16 being opened, and is fixed to the concave groove 17 with the fixing band 22 to thereby store the water storage bag 16. Is attached to the inner lid receiving frame 12 and the water storage bag 16 can be easily and reliably set in the water tank body 2. (Refer to FIG. 3.) And, for the safety when an operator wants to enter the water bag 16 for the inspection of the set water bag 16, the inner periphery of the water bag 16 extends over the upper and lower portions for safety. If the foot hooks 8, 8,... Are locked with the clips 25, 25,..., The worker can move up and down in the water tank body 2 with the foot hooks 8, 8,. At the time of water storage, the water storage bag 16 is expanded substantially along the inner periphery of the water tank main body 2 regardless of the presence of the footrests 8, 8,.

  And water is easily stored in the water storage bag 16 by inserting a hose or the like from the upper part of the underground fire prevention water storage tank 1 into the bag-mounting inner lid receiving frame 12 and pouring water, and the water storage bag 16 is stored in the underground fire prevention water storage tank 1. It is arranged stably. And water can be preserve | saved in the underground fire prevention water storage tank 1 by screwing the inner lid 11 to the bag-attaching inner lid receiving frame 12. The stored water can be used as fire prevention water at the time of a disaster or the like, or can be used as drinking water in an emergency. In addition, the waterproof effect is excellent by inserting the waterproof rubber cover 23 for waterproofing of the water outlet 4 and preventing the corrosion of the outer periphery and inner periphery of the water tank body 2, waterproofing, water repellent, etc. It becomes the underground fire prevention water tank 1 that can endure the preservation of the water.

  Further, since the water tank body 2 is a vertically long cylindrical body, the water stored in the water storage bag 16 can be surely and easily pumped up by a pump or the like. The water storage bag 16 can be easily and easily removed from the concave groove 17 of the bag engaging inner lid receiving frame 12 simply by unraveling.

  When the underground fire prevention water storage tank of the present invention is installed in a cold region or the like, a heat insulating film is formed on the inner surface of the water storage bag 16 and the back surface of the inner lid 11 so that the water in the water storage bag 16 does not freeze. May be worn.

It is front sectional drawing of the underground fire prevention water tank which concerns on the Example of this invention. It is side surface sectional drawing of FIG. It is explanatory drawing which shows the relationship between an inner lid, a bag engaging middle lid receiving frame, and a water storage bag.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Underground fire prevention water storage tank 2 Water tank main body 3 Above-ground 4 Water drawing-out port 9 Outer lid 11 Middle lid 12 Inner lid receiving frame wearing bag 16 Water storage bag 18 Flange 22 Fixed band 23 Waterproof rubber cover

Claims (1)

An underground fire prevention water storage tank consisting of a tank body buried in the ground and a water pumping port extending from the tank body to the ground, and a bag body arranged on the inner peripheral surface of the tank body. The outer lid is placed on the upper part at the same level as the ground of the water outlet, and the inner lid and the inner lid receiving frame for bag engagement are arranged below the outer lid, A water storage bag is engaged with a fixed band at a lower part of the inner periphery of the receiving frame, a flange for locking to the water tank is formed at an outer peripheral lower part of the inner cover receiving frame attached to the bag, and a waterproof rubber cover is provided on the outer periphery of the water outlet. An underground fire prevention water tank characterized by the arrangement of

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