JP2003190841A - Nozzle for blowing mortal or concrete and apparatus for forming slope face protection in altitude slope face using the nozzle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the structure of a nozzle to enable to intimately mixing an admixture added to rapidly harden a blowing material injected into a forming frame with compressed air in a slope face protection work in the nozzle for blowing mortal or concrete, and an apparatus for forming a slope face protection in an altitude slope face using the nozzle. <P>SOLUTION: A circular material supply hose connection port (2) is formed on the base end of a nozzle body (1). A small chamber (1") separated from a nozzle body chamber (1') for the nozzle body is provided in the mid-way of the nozzle body in the longitudinal direction and an introducing pipe (3) for introducing the admixture and the compressed air is connected to an introducing port of the small chamber, a slit like discharge port (8) communicating with the nozzle body chamber (1') is formed in the tip of the small chamber (1") and a jetting port (9) in the tip of the nozzle body chamber (1') is formed flat. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nozzle for spraying mortar or concrete and an apparatus for manufacturing a method frame on a slope on a high place using the nozzle. That is,
In the legal framework work, the structure of the nozzle was improved so that the admixture added to rapidly cure the spray material injected with compressed air into the formwork could be mixed well, and the crane was used for the spraying work. A workbench is used, and the outriggers provided on the workbill that can adjust the height of the pedestals allow the workbench to be leveled and to allow safe work even on uneven terrain. The purpose of the present invention is to raise the caterpillar from the ground plane so that the caterpillar can change its direction in the levitated state so as not to damage the ground or lawn.

[0002]

2. Description of the Related Art In the conventional construction work of a law frame, as shown in FIG. 9, the spray material sent to a discharge hose 21 is a nozzle N at the tip of the hose, using compressed air from a spraying machine dedicated to spraying mortar or concrete. It is carried out by spraying and injecting into the form C for the legal frame. To operate this nozzle, a special worker M who works on the slope B attaches a lifeline R, connects the special line to the lifeline, carries a hose on the shoulder, and holds the nozzle N at its tip with one or both hands. Perform injection work into the formwork for the legal form.

Further, in a work vehicle equipped with a caterpillar, there has been an invention of levitating the caterpillar from the ground contact surface to change the direction. For example, Japanese Patent Laid-Open No. 7-
The present invention exists as an invention relating to a combine for harvesting rice of 165028 (former) and an invention relating to a carriage for carrying of Japanese Patent Laid-Open No. 7-251743 (latter). The former has a feature that the direction change is smoothly made in a small turn, and in that case, there is no inconvenience of excavating the soil with the caterpillar.
In addition, the latter has features that it prevents vibration of the transported object mounted on the vehicle body during movement, does not blow up fine foreign matter on the floor surface, and can change the direction of the caterpillar by the piston. ing.

[0004]

However, in the above-mentioned conventional construction work of the legal framework, the mortar or concrete material sprayed and injected into the mold will flow out of the mold if the fluidity is high. On the other hand, if the fluidity of the mortar or concrete material is low, the outflow can be prevented, but the material will not stretch and the work using the iron is difficult and the efficiency is poor.

In the former disclosed invention, the former is provided with a rotary support leg that moves up and down by a hydraulic cylinder in the center of the vehicle body. Since the rotary support leg is single, the ground contact surface is If the ground is uneven, the work is dangerous due to lack of stability.

In the latter case, the structure is such that the center part of the vehicle body expands and contracts to levitate the vehicle body. However, in the center part of the vehicle body, the telescopic single support column is extended to levitate the vehicle body. In addition, since it is used for cleaning, it is limited to a place such as a floor or a pavement that is leveled, and it is unstable and unsuitable for use in an uneven place. Both of them can be applied to a relatively small vehicle, but cannot be applied to a super-large crane vehicle that requires an outrigger during work.

[0007]

Therefore, the present invention is provided to solve the problems of the prior art and to achieve the objects of the invention.

That is, the first aspect of the present invention is a nozzle for spraying mortar or concrete, in which a circular discharge hose connecting port is formed at the base end of the nozzle body, and the body of the nozzle body is provided midway along the length of the nozzle body. A small chamber isolated from the chamber is provided, an introduction pipe for introducing the admixture and compressed air is provided at the introduction port provided in the small chamber, and a slit-shaped discharge port communicating with the main chamber is formed at the tip of the small chamber. The injection port at the tip of is shaped flat.

A second aspect of the present invention is an apparatus for manufacturing a method frame on a slope at a high place, in which a material supply hose is provided in parallel with a telescopic and foldable boom installed on a vehicle body frame, and a tip end of the discharge hose is provided. The nozzle for spraying mortar or concrete according to the invention of 1 is attached.

The third aspect of the present invention is, in a method for manufacturing a slope frame on a slope at a high place, a swivel / boom and a driver's seat of a boom are installed on a workbench of a body frame, and a caterpillar swivel is installed on a lower portion of the body frame. In addition, the caterpillars are installed on the left and right sides of the caterpillar, and the outrigger mounting bodies are laterally mounted between the body frame and the caterpillar swivel base, and the outriggers are mounted on the outrigger mounting bodies. The nozzle for spraying mortar or concrete according to the invention is attached.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a nozzle body for spraying mortar or concrete, a circular discharge hose connection port 2 is formed at the base end, and a body chamber 1'is formed in the middle of L in the length direction of the nozzle body.
There is provided a small chamber 1 ″ isolated from the above. Reference numeral 3 denotes an introduction pipe communicating with an introduction port for introducing the admixture and compressed air provided at the rear portion of the small chamber 1 ″, and the introduction pipe is formed into a bifurcated shape. the admixture supply hose 4 to the inlet pipe 3 in _1, also is connected the other inlet pipe 3 ₂ compressed air supply hose 5, respectively.
6 and 7 are flow rate adjusting valves with levers provided on the supply hoses 5 and 6, 8 is a slit-shaped horizontally long discharge port communicating with the front half of the main chamber 1'formed at the tip of the small chamber 1 ", 9
Is a flat injection port formed at the tip of the main chamber 1 ', 1
Reference numeral 0 is a check valve provided in the introduction pipe 4.

Reference numeral 11 denotes a working vehicle such as a crane type concrete pump truck or a crane truck, which supports a working platform on a caterpillar revolving structure. A workbench 12 is provided with a crane, an excavator, a driver's seat, an engine, and the like. 1
3 is a driver's seat, and 14 is a swivel base of a crane. Both the driver's seat and the swivel base are installed on the workbench 12. 15 is a crane column, 16 is a crane folding boom, 1
7 is a pair of left and right caterpillars arranged below the frame 1, 18 is a revolving body of the caterpillar, 19 is an outrigger mounting body which is horizontally mounted between the frame 1 and the revolving body of the caterpillar,
20 is an outrigger that can be expanded and contracted in the left-right direction to the mounted body, and the height of the pedestal can be adjusted, 21 is a discharge hose arranged along the boom and extending from the tip of the boom, and 22 is compressed air for supplying hose 5 and compressed air. chamber 1 of the nozzle body 1 through the introduction pipe 3 ₂ "compressor for sending, the 23 chamber 1 of the nozzle body 1 the admixture housed in the container 24 through the introduction pipe 3 _first supply hose 4-admixtures" in It is a supply pump for sending.

[0013]

[Concrete work example] The supply hose 21 for spraying mortar / concrete is connected to the circular connection port 2 provided in the nozzle body 1. In addition, the introduction pipe 3 provided in communication with the introduction port of the small chamber 1 ″ is divided into two forks, and one of the introduction pipes 3 ₁
The admixtures introduction hose 4, each other inlet pipe 3 ₂ to the compressed air inlet hose 5 is connected to. In this state, the mortar / concrete spray material is fed to the main chamber 1'of the nozzle main body 1 by the work vehicle A such as a crane truck or a concrete pump truck in the main chamber 1 '. On the other hand, the admixture stored in the storage chamber 23 is supplied to the small chamber 1 ″ of the nozzle body by the pump 23 through the hose 4 and the compressed air of the compressor 22 is pumped to the small chamber 1 ″ through the hose 5.

The mortar supplied to the main chamber 1 '
The concrete spraying material is pushed from the circular supply port 2 of the main body chamber toward the front end in a flat shape so as to be gradually crushed from the circular shape into a horizontally long flat shape. At the same time, the admixture from one of the two forked hose 4 is pushed by the compressed air from the other hose 4 in the flat small chamber 1 ″ in a pressure-feeding state to push the slit-shaped discharge port 8 to the flat state of the main chamber 1 ′. It is mixed with the mortar or concrete spraying material, and the mixed spraying material is injected from the flat injection port 9 into the target mold C in the slope frame installed on the slope B.

A work vehicle A such as a crane vehicle or a concrete pump vehicle with the boom 16 folded and / or another work vehicle equipped with a compressor 22, an admixture storage container 23, and a pumping pump 24 is driven to a desired location. After stopping, the left and right outriggers 20 at the front and rear of the body frame 11 of the concrete pump truck A are adjusted in height of the pedestals to be grounded in accordance with the terrain at the vehicle stop location. Then
The outrigger 20 is further extended to float the caterpillar 17 from the ground surface G until a predetermined space S is reached.

In this state, after converting the caterpillar 17 to a desired direction, the outrigger 20 is contracted to make the caterpillar 1
Ground 7 again. Subsequently, while extending and turning the folded boom 16, the boom 16 is stopped at a position close to the slope B to a distance suitable for spraying work. Then, the frame work of "0013" and "0014" is performed.

When it is not necessary to change the direction of the caterpillar 17 at the position where the vehicle body frame 11 is stopped, the outrigger 20 may be operated without floating the caterpillar 17 even if the outrigger 20 is grounded.

[0018]

Since the present invention is constructed as described above, it has the following effects. First of all, in the legal framework construction, the admixture discharged from the discharge port is sprayed into the spraying material of mortar or concrete before the flat injection port of the nozzle body in a well mixed state. The spray material injected into the frame can be rapidly cured while ensuring an appropriate fluidity, and can be processed quickly and easily.

Further, at the work site of the construction work of the law frame, when the minimum rotation direction is changed for positioning the caterpillar crane work vehicle, the caterpillar is levitated by the outrigger so as to turn without damaging the ground or the lawn. And can work.

Further, even when the work site is uneven and uneven, the workbench can be kept horizontal by adjusting the height of the outriggers to perform safe work.

[Brief description of drawings]

FIG. 1 is a front view of a nozzle for spraying mortar or concrete according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a perspective view of FIG.

4 is a cross-sectional view taken along line 4-4 of FIG.

FIG. 5 is a perspective view showing a usage state of a crane-type concrete pump vehicle including a nozzle body according to the present invention.

FIG. 6 is a front view of a caterpillar crane vehicle.

FIG. 7 is a side view of FIG.

FIG. 8 is a schematic plan view of FIG.

FIG. 9 is a perspective view showing a working state of a framing work.

[Explanation of symbols]

1 nozzle body 2 Nozzle body connection port 3 introduction tubes 4 supply hose 5 supply hose 6 Flow control valve 7 Flow control valve 8 spouts 9 injection ports 10 check valves 11 body frame 12 Workbench 13 Driver's seat 14 Crane swivel 15 crane columns 16 boom 17 caterpillar 18 Caterpillar swivel base 19 Outrigger mount 20 Outrigger 21 Discharge hose

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Ryosuke Honda             Gunma Prefecture Kita-Gunma-gun Yoshioka-cho Ogura 87-87               Jomo Green Industry Co., Ltd. F term (reference) 2D044 DC05                 3F333 AA08 AA20 AB02 AB04 CA13                       CA15 CB03 CB08 CB14 DA02                 4F033 AA01 BA03 CA02 DA01 EA01                       QA01 QB02Y QB03X QB09X                       QB12Y QB17 QB20 QC02                       QD02 QD14 QE09 QE21

Claims (3)

[Claims] 1. A circular material supply hose connection port (2) is formed at the base end of a nozzle body (1), and a main body chamber (1 ′ of the nozzle body is formed in the middle of the nozzle body in the length direction (L). ) And a small chamber (1 ″) isolated from the small chamber, an introduction pipe (3) for introducing the admixture and compressed air is connected to the inlet of the small chamber, and the main chamber (1 ′) is connected to the tip of the small chamber (1 ″). A nozzle for spraying mortar or concrete, characterized in that a slit-shaped discharge port (8) communicating with each other is formed and an injection port (9) at the tip of the main body chamber (1 ') is formed flat. 2. A material supply hose (21) is installed side by side on a telescopic and foldable boom (16) installed on a body frame (11),
An apparatus for manufacturing a method frame on a slope on a high place in which the nozzle for spraying mortar or concrete according to claim 1 is attached to the tip of the supply hose. 3. The work platform (12) of the body frame (11) is provided with a boom swivel base (14), a boom (16) and a driver's seat (13), and a caterpillar swivel base (18) is provided under the body frame. ) Is installed, and the caterpillars (17) are installed on the left and right sides thereof, and the outrigger mounting body (19) is laterally installed between the body frame (11) and the caterpillar swivel base (18), and the outriggers (2
An apparatus for manufacturing a method frame on a high-altitude slope in which the nozzle (0) is attached and the nozzle for spraying mortar or concrete according to claim 1 is attached to the tip of the discharge hose (21) at the tip of the boom.