JP3026147U - Cleaning device for cleaning liquid in the drum of concrete mixer truck - Google Patents

Abstract

(57) [Summary] [Purpose] Providing a device for automatically cleaning by discharging a total amount of ready-mixed concrete from the drum of a concrete mixer truck and then injecting a stabilizer diluting solution as a cleaning liquid to the mortar adhering to the inner wall of the mixer drum, blades, etc. With the goal. [Composition] An injection cleaning pipe in a hopper that can reciprocate toward a fresh concrete input hopper of a concrete mixer truck stopped at a predetermined position, and an in-drum injection that is reciprocally movable from the input hopper into a drum and is swingably rotatable. An apparatus for cleaning and injecting cleaning liquid inside a drum of a concrete mixer, comprising a cleaning liquid and a cleaning liquid supply hose artificially connectable to the drum rear blade cleaning pipe of the concrete mixer car.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an apparatus for injecting a cleaning liquid into a mortar attached to the inner wall of a mixer truck drum, blades, etc. after the fresh concrete is discharged from a concrete mixer truck to wash the inside of the drum, the hopper, and the drain blades at the rear of the drum. .

[0002]

[Prior art]

 According to the JIS revision plan for ready-mixed concrete scheduled for fiscal 1996, after discharging all the ready-mixed concrete from the mixer car drum, a stabilizer diluting solution is sprayed on the mortar adhering to the drum inner wall, blades, etc. Slurry of mortar can be used as a part of mixing water for freshly loaded fresh concrete. In this case, the solution used as the cleaning liquid is a stabilizer diluted solution in which the stabilizer and fresh water are mixed in the required ratio, and must be accurately weighed and used. Therefore, at the present stage, in order to inject and wash the diluted stabilizer solution into the drum, it is necessary for the driver of the mixer truck to inject the washing liquid into the drum and perform the washing. In order to clean all the inside of the drum by this method, it is necessary to put a hand into the drum to clean it, which is very dangerous and may accidentally fall into the drum, leading to a fatal accident. Therefore, it is possible to automatically mix and dilute the stabilizer diluted solution used as the cleaning liquid, and to wash all the inside of the mixer truck drum, the hopper, the discharge blade at the rear of the drum, etc. Is required.

[0003]

[Problems to be solved by the device]

 The problem to be solved by the present invention in view of the above is that it is possible to automatically mix and automatically measure a stabilizer diluting solution used as a cleaning liquid for this device, and to put the solution into the drum without the driver of the mixer truck climbing to the hopper. In addition to automatically spraying every corner inside the drum, the inside of the hopper, and the cleaning blades at the rear of the drum, it is possible to reduce the large amount of water required for cleaning inside the drum and hopper, etc. It provides a device that can significantly reduce the cleaning time.

[0004]

[Means for Solving the Problems]

 An injection cleaning pipe 23 in the hopper that can reciprocate vertically to the ground toward the fresh concrete feeding hopper of the concrete mixer truck stopped at a predetermined position, and a reciprocating movement from the charging hopper into the mixer truck drum, and A cleaning liquid supply hose 37 that is artificially connectable to the in-drum injection cleaning pipe 8 that is swingably rotatable and the drum blade cleaning pipe 32 that is provided in the mixer car and that cleans the drum rear discharge blade portion And a cleaning liquid supply means for supplying the cleaning liquid to the cleaning pipe, respectively. The cleaning liquid supply means presses each predetermined amount from the cleaning agent storage tank Ca and the fresh water storage tank Cb via the supply pump at a required ratio. The concrete is characterized in that pressurized water is sent to the tank and sprayed through the header and each cleaning pipe for cleaning. Using the drum cleaning solution spray cleaning apparatus Tomikisa vehicles, stabilizers dilute solution as the washing liquid can achieve the above object by using.

[0005]

【Example】

 Hereinafter, the configuration of the present invention will be described based on one embodiment. FIG. 1 is an overall explanatory view showing the overall structure of the present invention. The mixer truck M to be cleaned in the drum is guided by the line L and moves backward, and the stop position is determined by the wheel stopper W. On the rear side of the vehicle, an in-drum injection cleaning device A for injecting a cleaning liquid into the drum is arranged vertically with respect to the same floor surface as the mixer car M, and inside the hopper on the upper side of the hopper of the mixer car M. The jet cleaning device B is arranged in the same manner as the in-drum jet cleaning device A. A pressure control device P is provided on the upper side of each device. Further, a control operation panel Cu and a cleaning agent storage tank Ca and a fresh water storage tank Cb to be supplied to the pressure control device P are provided at predetermined positions on the same floor as the mixer car M, respectively below the storage tank. Is provided with a cleaning agent supply pump E1 with a flow meter and a fresh water supply pump E2 with a flow meter for sending the cleaning agent and fresh water to the pressure control device P. Besides, a compressor D for supplying air is arranged. For convenience of explanation, the electrical wiring is omitted.

Next, the configuration and operation of the in-drum injection cleaning device A will be described. FIG. 2A is an explanatory view showing the overall structure of the in-drum jet cleaning device A. A support plate 1 whose height can be adjusted from the floor of the stopped vehicle is provided with a base plate 2 whose angle can be adjusted with respect to the floor of the stopped vehicle, and the base plate 2 can reciprocate. The rodless cylinder 3 is mounted, and the hose reel 4 is mounted on the compound end side of the rodless cylinder 3. A bearing 6 and a motor 7 are arranged on the table 5 of the rodless cylinder 3, and one side of a cleaning pipe 8 having a required length is fixed to the bearing 6. A gear 9 is provided near one side of the cleaning pipe 8, and the pinion 11 connected to the shaft 10 of the motor 7 meshes with the gear 9. One end of the cleaning pipe 8 and the tip of the hose 12 wound around the hose reel 4 are connected to the rotary joint 13, and these mechanisms allow the cleaning pipe 8 to reciprocate and swing and rotate. Here, the configuration of the cleaning pipe 8 will be described. FIG. 2B is a front sectional view of the cleaning pipe 8. An injection nozzle 14 having a desired angle is provided at the other end of the cleaning pipe 8. When the cleaning pipe 8 is extended to the maximum length on the outward path, a large moment acts on the table 5 and the cleaning pipe 8 is bent. As a measure to prevent this, there is a reinforcing bar 16 connected to a pipe ring 15 fixed to a required portion of the cleaning pipe 8, and a bearing 17 is provided on the base plate 2 on the forward end side of the rodless cylinder 3. Since the reinforcing bar 16 slides along the groove of the inner ring of the bearing 17, it is possible to reduce the moment applied to the table 5 when the cleaning pipe 8 reciprocates and oscillates to the maximum length on the outward side. The bending of the cleaning pipe 8 can also be prevented. In addition, each operating part is protected by bellows. The injection means will be described later.

Next, the configuration and operation of the hopper injection cleaning device B will be described. FIG. 3A is an explanatory diagram showing the overall configuration of the in-hopper jet cleaning device B. A support plate 18 whose height can be adjusted from the floor surface of the stopped vehicle is provided with a base plate 19 capable of adjusting the angle with respect to the floor surface of the stopped vehicle, and the base plate 19 can reciprocate. The rodless cylinder 20 is mounted, and the hose reel 21 is mounted on the compound end side of the rodless cylinder 20. A part of the cleaning pipe 23 having a hopper shape is fixed to the table 22 of the rodless cylinder 20 so that the cleaning pipe 23 reciprocates. By connecting one end of the cleaning pipe 23 and the tip of the hose 24 wound around the hose reel 21, the hose 24 is freely extended as the cleaning pipe 23 reciprocates. Here, the configuration of the cleaning pipe 23 will be described. FIG. 3B is an explanatory view showing a part of the cleaning pipe 23 in a perspective view. An injection nozzle 25 having a required angle is provided at a required position of the cleaning pipe 23. When the cleaning pipe 23 is extended to the maximum length on the outward path, a large moment acts on the table 22 and the cleaning pipe 23 is bent. As a measure for preventing this, a fixed pipe ring 26 is provided at a required portion of the cleaning pipe 23, and the pipe ring 26 is connected by a connecting bar 27. One side of the reinforcing bars 28, 29 is connected to a predetermined position of the cleaning pipe 23 via a pipe ring 26, and the other side thereof is connected to linear motion guides 30, 31 provided at a predetermined position of the base plate 19. With this, it is possible to reduce the moment applied to the table 22 when the reciprocating guide and the cleaning pipe 23 are extended to the longest on the outward path side, and it is possible to prevent the cleaning pipe 23 from bending. Also, each operating part is protected by bellows, and the injection means will be described later.

Next, the discharge drum blade jet cleaning means will be described. FIG. 4 is a perspective view showing a cleaning pipe of the discharge drum blade of the mixer truck M. Originally, the concrete mixer truck was provided with a cleaning pipe 32 for cleaning the drum blades after discharging the raw concrete. Cleaning water was supplied to the cleaning pipe 32 from the water tank 33 of the mixer car M via the water pump 34 to clean the drum blades. Therefore, the washing water hose 35 is branched, and the coupler 36a provided on one side of the washing water hose 35 is connected to the coupler 36b provided at the tip of the washing liquid hose 37, so that the washing liquid can be supplied to the washing pipe 32. The injection means will be described later.

Here, the cleaning liquid and the cleaning liquid supply means will be described. FIG. 5 is an explanatory diagram showing the cleaning liquid piping system. The cleaning liquid is a mixture of a cleaning agent and fresh water in a required ratio. Therefore, a required amount of cleaning agent is sent from the cleaning agent storage tank Ca to the pressure control device P via the cleaning agent supply pump E1 with a flow meter, and the pressure control device from the fresh water storage tank Cb via the fresh water supply pump E2 with a flow meter. By sending fresh water to P 2, the cleaning liquid mixed at a required ratio can be supplied. Further, the required ratio of the cleaning agent and the fresh water supplied to the pressure control device P can be changed by the temperature sensors 38a and 38b when a predetermined atmospheric temperature is reached.

Next, the injection means will be described. FIG. 6 is an explanatory diagram showing the overall configuration of the pressure control device P. FIG. 7 is an air circuit diagram. As described above, the cleaning agent and fresh water flow into the pressure control device P from the water supply pipes 39a and 39b of the pressure control device P. After that, air is supplied from the air pipe 40 to pressurize the pressure control device P. After reaching the predetermined pressure, the air supply is stopped. At that time, the cleaning pipe 23 is inserted into the mixer car hopper, and then the cleaning pipe 8 is inserted into the mixer car drum. Further, couplers 36a and 36b are connected to supply the cleaning liquid to the cleaning pipe 32. In this state, the solenoid valve 41 is released, and the cleaning liquid is sprayed from each cleaning pipe via the header 42. At this time, flow control valves 43a, 43b, 43c for controlling the flow rate of the cleaning liquid are respectively arranged between the header 42 and the cleaning pipes, and the amount of the cleaning liquid injected from each cleaning pipe can be arbitrarily set. Can be set. The operation during injection is performed as follows. The cleaning pipe 8 is rotated to start the backward movement while injecting the cleaning liquid from the injection nozzle 14. At the same time, the cleaning liquid is sprayed from the spray nozzle 25 and the cleaning pipe 32 of the cleaning pipe 23. After the injection, after the cleaning pipe 8 has returned, the cleaning pipe 23 moves back. Also, the coupler 36a of the cleaning water hose 35 and the coupler 36b of the cleaning liquid hose 37 are removed. This completes the entire process.

[0011]

[Effect of device]

 According to the device of the present invention, after discharging all the ready-mixed concrete from the mixer truck drum, the stabilizer diluting solution is sprayed to the mortar adhering to the input hopper, the inner wall of the drum, and the blades as the cleaning liquid to perform the cleaning automatically. Also, after the cleaning pipe inside the drum is inserted, it moves to the outside of the drum while swinging and rotating at the same time as the injection, so that the entire area inside the drum can be cleaned in a short time with a small amount of cleaning liquid. Therefore, in the past, a large amount of washing water was used to stir the drum for washing, but the sludge water generated at that time is eliminated, and the wastewater pollution can be eliminated and the amount of mols adhering to the drum can be eliminated. You can also reuse the tar.

[Brief description of drawings]

FIG. 1 is an overall explanatory view showing the overall configuration of the device of the present invention.

FIG. 2A is an explanatory diagram showing an overall configuration of an in-drum injection cleaning device A.

FIG. 2B is a front side sectional view of the cleaning pipe 8. (A-
(a view from arrow)

FIG. 3A is an explanatory diagram showing an overall configuration of an in-hopper injection cleaning device B.

FIG. 3B is an explanatory view showing a part of the cleaning pipe 23 in a perspective view.

FIG. 4 is a perspective view showing a cleaning pipe of a discharge drum blade of a mixer truck M.

FIG. 5 is an explanatory diagram showing a cleaning liquid piping system.

FIG. 6 is an explanatory diagram showing an overall configuration of a pressure control device P.

FIG. 7 is an air circuit diagram.

[Explanation of symbols]

 M Mixer vehicle W Wheel stopper A Drum injection cleaning device B Hopper injection cleaning device P Pressure control device Cu control operation panel Ca Cleaning agent storage tank Cb Fresh water storage tank E1 Cleaning agent supply pump with flow meter E2 Fresh water supply pump with flow meter 1 Support Plate 2 Base Plate 3 Rodless Cylinder 4 Hose Reel 5 Table 6 Bearing 7 Motor Hose 8 Cleaning Pipe 9 Gear 10 Shaft 11 Pinion 12 Hose 13 Rotary Joint 14 Injection Nozzle 15 Pipe Ring 16 Reinforcing Bar 17 Bearing 18 Support Plate 19 Base Plate 20 Rodless cylinder 21 Hose reel 22 Table 23 Cleaning pipe 24 Hose 25 Injection nozzle 26 Pipe ring 27 Connecting bar 28 Reinforcing bar 29 Reinforcing bar 30 Direct acting guide 31 Direct acting Id 32 Washing pipe 33 Water tank 34 Water pump 35 Washing water hose 36a Coupler 36b Coupler 37 Washing solution hose 38a Temperature sensor 38b Temperature sensor 39a Water supply pipe 39b Water supply pipe 40 Air piping 41 Solenoid valve 42 Header 43a Flow control valve 43b Flow control valve 43c Flow control valve 44 Air filter 45 Regulator 46 Pressure control device Pressurizing solenoid valve 47 Lubricator 48a Rodless cylinder regulator 48b Rodless cylinder regulator 49a Rodless cylinder solenoid valve 49b Rodless cylinder solenoid valve 50a Rodless cylinder Speed controller 50b Rodless cylinder Speed controller 50c Rodless cylinder Speed controller 50d Rodless cylinder Speedco Controller 51 pressure control device bleeder valve 52 Pressure switch

Claims (1)

[Scope of utility model registration request] 1. A jet cleaning pipe 23 in a hopper capable of reciprocating in a direction perpendicular to the ground toward a fresh concrete charging hopper of a concrete mixer truck stopped at a predetermined position.
And an in-drum injection cleaning pipe 8 that is reciprocally movable from the input hopper into the drum of the mixer car and is swingably rotatable, and a drum blade cleaning that cleans a drum rear discharge blade part provided in the mixer car. The pipe 32 is configured by a cleaning liquid supply hose 37 that is artificially connectable, and a cleaning liquid supply unit that supplies the cleaning liquid to the cleaning pipe. The cleaning liquid supply unit is the cleaning agent storage tank C.
A concrete mixer truck characterized in that a predetermined amount of each of a and fresh water storage tank Cb is sent into a pressure tank through a supply pump into a pressure tank at a required ratio to make pressurized water, and the water is sprayed through a header and a washing pipe to perform washing. In-drum cleaning liquid spray cleaning device.