JPH0734048U - Worker rescue capsule for pneumatic caisson - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a worker rescue bucket for pneumatic caisson that can safely and quickly rescue workers in the working room of the pneumatic caisson. [Structure] A capsule outer cylinder (1) having a substantially cylindrical shape and provided with an openable and closable door (4), a lid (2) provided on the upper part of the capsule outer cylinder (1), and the outside of the capsule. An expanded metal (3) provided in the lower part of the tube (1) and having a chair (8) in which a worker (a) sits; and a shaft (11) connected to a hanging and lifting device. The worker (a) in the working chamber (12) of the pneumatic caisson (10) can be accommodated inside through the passage.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a pneumatic caisson worker rescue bucket that allows a worker in a work chamber to escape to the ground side in an emergency in the construction of a pneumatic caisson that is submerged and used as an underground structure.

[0002]

[Prior art]

 Pneumatic caisson is usually made of reinforced concrete on the ground, installed in place to excavate the earth and sand of the natural ground, and the sediment in the pneumatic caisson is discharged by a sand bucket for discharge. It is submerged to the specified support ground by its own weight.

That is, a work chamber is formed under the pneumatic caisson as is well known. Normally, a sand excavator is used in the work chamber under pressure, and recently, the ground is excavated by unmanned operation. There is a tendency that, for example, if the earth and sand excavator breaks down, workers may have to enter the work room in order to carry out coordination, repair, and inspection. In this case, a worker in the work room may be injured due to an acute illness or injury and may have difficulty walking.

[0004]

[Problems to be solved by the device]

 When such a situation occurs, it is necessary to promptly rescue the workers, but since the conventional pneumatic caisson does not have a rescue device in particular, it can be used as a sand bucket for excavating the excavated sand. I had to put in a worker and rescue him. In that case, the soil bucket is dirty and the soil is attached, there is no space for humans to relax, it is not a place for people who are very sick or injured, and it causes mental distress. There was a problem. In addition, decompression time is required for a long time to be rescued to the ground, so it is necessary to stay in an awkward space for a long time, which causes physical pain in addition to mental pain. Furthermore, the sediment bucket does not have a lid on the top, and a joint for a cylindrical shaft that has an interior sediment bucket that can be raised and lowered when pulling it up, and a lock for decompression and worker entrance and exit connected to the shaft. There was a problem that it could be caught in the doors, etc., and it would be extremely dangerous if a person is inside.

The present invention has been proposed in view of the above, and an object thereof is to improve habitability and reduce mental and physical distress as compared with earth and sand buckets when a worker is rescued. Another object is to provide a worker rescue bucket for pneumatic caisson that can safely and quickly rescue workers.

[0006]

[Means for Solving the Problems]

 According to the present invention, a capsule outer cylinder 1 having a substantially cylindrical shape and provided with a door 4 which can be opened and closed, a lid 2 provided on an upper portion of the outer cylinder 1, and a lower portion of the capsule outer cylinder 1 are provided. And an expanded metal 3 provided with a chair 8 on which a worker a sits, and connected to a hoisting and lifting device, passing a shaft 14 through a shaft 14 to secure the worker a in the working chamber 12 of the pneumatic caisson 10. The above objective has been achieved as a structure that can be housed inside.

[0007]

[Action]

 In the present invention, the worker a is accommodated inside. In other words, around the worker a, there is the capsule outer cylinder 1, the lid 2, the expanded metal 3 and the like, and the worker a is protected by these. Therefore, it is much safer than the conventional sand bucket used for rescue. In addition, it is possible to sit on the chair 8 so that it has a good habitability, and dirt such as earth and sand adhering to the shoes of the worker a can be dropped to the outside through the mesh-shaped expanded metal 3. It is possible, and there is air circulation from this part, so that even if it takes time to rescue it to the ground, it is considered that oxygen deficiency does not occur.

[0008]

【Example】

 1 is a front view of an embodiment of the present invention, FIG. 2 is a bottom view taken along the line AA in FIG. 1, FIG. 3 is an explanatory view showing the internal structure when viewed from the front, and FIG. 4 is a plan view. FIG. 3 is an explanatory diagram showing an internal structure when viewed.

Reference numeral 1 in these figures denotes a substantially cylindrical capsule outer tube which constitutes a rescue capsule 1A, and is made of, for example, steel, and a dome having a hanging metal fitting 2a at the top is formed on the upper portion of the capsule outer tube 1. The lid 2 is provided. Further, an expanded metal 3 is provided on the lower part. The expanded metal 3 has a mesh shape and is configured so that air can freely flow in and out of the capsule outer cylinder 1.

Reference numeral 4 denotes a cantilevered support door provided on the capsule outer cylinder 1, which is openable / closable, and 5 denotes a handle for opening / closing the door 4. 6 is a peep window. A lock 7 for locking the door 4 from the inside is provided inside the capsule outer cylinder 1. The lock 7 may be of any type as long as it can easily lock the door 4.

Reference numeral 8 denotes a chair provided inside the capsule outer cylinder 1 and above the expanded metal 3 functioning as a floor plate, and handrails 9 are provided on both sides of the chair 8. The handrail 9 is made of, for example, a pipe, and its base is fixed to the inner wall of the capsule outer tube 1 by a fixing tool, welding, or the like, thus constructing the rescue capsule 1A.

Next, a rescue method using the rescue capsule 1A of the present invention will be described with reference to FIG. First, in FIG. 5, 10 is a pneumatic caisson to be submerged in the ground, 11 is a slab formed in the lower part of the pneumatic caisson 10, and an opening 13 leading to the working chamber 12 is formed in the substantially central part of the slab 11. Has been formed. 14 is a shaft of the outfitting, 15 is a lock provided in the middle of the shaft 14, 15a is an open / closed hatch, 16 is an upper lock provided on the upper part of the shaft 14, 16a is an openable upper hatch, 17a Is a hoisting and lifting device such as a crane provided on the ground side for hoisting and hoisting the rescue capsule 1A.

In the work, the earth and sand excavator (not shown) provided in the work chamber 12 is used to excavate the natural ground G, and accordingly, the pneumatic caisson 10 is weighted by its own weight. To settle. In this case, the worker a may enter the work room 12, but the worker a may suffer an acute illness, or may be injured such as an injury and have difficulty walking.

In such a case, the person in charge of Hakouchi contacts the person in charge on the ground by telephone, and the person in charge who receives it contacts the rock tender and the person who sled the ground. The locktender immediately operates the crane 17 at the position where the rescue capsule 1A is located, the ground slinger removes the earth and sand bucket, and connects the wire rope 18 of the crane 17 to the hanging metal fitting 2a of the rescue capsule 1A.

After that, the rescue capsule 1A connected to the crane 17 through the shaft 14 to the working room 12 is lowered, the worker a is put on it, and a caregiver also enters inside if necessary, and the rescue capsule is pulled up to the ground and rescued. To do. In this case, since the floor of the rescue capsule 1A is composed of the expanded metal 3, the earth and sand adhering to the body of the worker a falls outside. Also, since there is air circulation, it will not be stuffy. As is well known, the working chamber 12 has a higher air pressure than the atmospheric pressure via a pneumatic device (not shown), so the upper hatch 16a is depressurized in the upper lock 16 to reach the atmospheric pressure. Open it, carry it to the ground, and take appropriate measures.

[0016]

[Effect of device]

 As described above, according to the present invention, even if the worker a in the working chamber 12 has an emergency, the capsule outer cylinder 1 and the lid 2 are provided, and the worker a can be housed and protected inside. Therefore, it can be rescued safely and promptly. Further, since the floor is made of the expanded metal 2 having a fine shape, the earth and sand attached to the worker a can be dropped and discharged to the outside, and the air also flows, so that oxygen deficiency does not occur.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a bottom view taken along the line AA in FIG.

FIG. 3 is an explanatory view showing the internal structure of the present invention when viewed from the front.

FIG. 4 is an explanatory view showing the internal structure of the present invention when viewed from above.

FIG. 5 is an explanatory view showing a usage state of the present invention.

[Explanation of symbols]

 1 Capsule Outer Tube 2 Lid 2a Hanging Metal Fitting 3 Expanded Metal 4 Door 5 Handle 6 Peephole 7 Lock 8 Chair 9 Handrail 10 Pneumatic Caisson 11 Slab 12 Working Room 13 Opening 14 Shaft 15 Lock 15a Hatch 16 Top Lock 16a Upper Hatch 17 Suspension lifting device: Crane 18 Wire rope a Worker

Claims (1)

[Scope of utility model registration request] 1. A door (4) having a substantially cylindrical shape and capable of opening and closing.
The capsule outer cylinder (1) provided with the capsule outer cylinder (1), the lid (2) provided on the upper part of the capsule outer cylinder (1), and the lid (2) provided on the lower part of the capsule outer cylinder (1). In a working room (12) of the pneumatic caisson (10) through a shaft (14) and with an expanded metal (3) provided with a chair (8) on which a) sits. The worker rescue capsule for pneumatic caisson, which is capable of accommodating the worker (a) of FIG.