Refuse collection vehicle

Abstract

To provide a garbage collection vehicle having a configuration capable of effectively spraying a chemical solution to garbage liquid and splash thereof generated during a loading operation of a garbage loading mechanism.SOLUTION: A spray nozzle 6 for spraying a chemical solution is attached to a rear surface of a push-in plate 5b. The spray nozzle 6 includes: a first spray nozzle 6a located at a middle part of the push-in plate 5b in a width direction; and a second spray nozzle 6b located at both end parts of the push-in plate 5b in the width direction. The first spray nozzle 6a sprays the chemical solution downward along the rear surface of the push-in plate 5b, and the second spray nozzle 6b is arranged so as to be able to spray the chemical solution into a gap between both end parts in a widthwise direction of the push-in plate 5b and both-side inner surfaces of a garbage input box 2.SELECTED DRAWING: Figure 3

Description

Technical Field

[0006] , , , ,

[0001] The present invention relates to a dust collection vehicle including a dust storage box, a dust input box attached to the rear of the dust storage box, and a dust loading mechanism provided in the dust input box.

Background Art

[0002] In this type of dust collection vehicle, in order to reduce the odor generated from the collected dust (such as household waste), a chemical solution containing a deodorant or a fragrance is sprayed from a spray nozzle provided inside the dust input box or near the dust input port.

[0003] For example, in Patent Document 1, a main injection nozzle and an auxiliary injection nozzle are provided in a supply pipe arranged inside the dust input box. After the dust loading operation is completed and the rear door is closed, a liquid deodorant is injected from the main injection nozzle toward the inner surface of the side wall of the dust input box, and a liquid deodorant is injected from the auxiliary injection nozzle toward the inner surface of the rear door or a rotating plate or a pushing plate.

[0004] Further, in Patent Document 2, it is disclosed that a spray nozzle is provided above the dust input port, and a deodorizing liquid is sprayed from the spray nozzle toward the dust input port.

[0005] Also, in Patent Document 3, it is disclosed that a spray nozzle is provided on the side of the dust input port, and a fragrance is sprayed from the spray nozzle toward the dust input port.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

[0007] During refuse collection, garbage bags and other items placed in the refuse input box may burst due to the loading operation of the refuse loading mechanism, generating waste liquid and splashes. However, in Patent Document 1, the chemical solution is sprayed towards the inner surface of the side wall of the refuse input box after the refuse loading operation is completed and the rear door is closed, so the chemical solution cannot be sprayed against waste liquid and splashes during the loading operation. Furthermore, in Patent Documents 2 and 3, the chemical solution is sprayed towards the refuse input port, so the chemical solution cannot be effectively sprayed against waste liquid and splashes during the loading operation.

[0008] The main objective of the present invention is to provide a refuse collection vehicle equipped with a configuration that can effectively spray a chemical solution against waste liquid and its splashes generated during the loading operation of the refuse loading mechanism. [Means for solving the problem]

[0009] To solve the above problems, the present invention provides a refuse collection vehicle comprising a refuse container, a refuse input box attached to the rear of the refuse container, and a refuse loading mechanism provided in the refuse input box, wherein the refuse loading mechanism has a rotating plate rotatably provided inside the refuse input box for scooping up refuse put into the refuse input box toward the refuse container, and a pushing plate oscillating in the front-rear direction inside the refuse input box for pushing the refuse scooped up by the rotating plate into the refuse container, wherein a spray nozzle for spraying a chemical solution in accordance with the movement of the pushing plate is attached to the rear surface of the pushing plate. [Effects of the Invention]

[0010] According to the present invention, a chemical solution can be effectively sprayed against waste liquid and its splashes generated during the loading operation of the waste loading mechanism. [Brief explanation of the drawing]

[0011] [Figure 1]This is a side view showing the refuse container and its surrounding area of ​​a refuse collection vehicle according to an embodiment, and a refuse input box attached to the rear opening of the refuse container. [Figure 2] This is a cross-sectional view showing the waste disposal box and its surrounding area. [Figure 3] This is a partially enlarged view of Figure 2. [Figure 4] This is a view from the rear of the inside of the waste disposal box (with the curtain removed). [Figure 5] This is a rear view of the inside of the waste disposal box (with the curtain attached). [Figure 6] This diagram shows the state of the waste disposal box after waste has been placed inside. [Figure 7] This diagram shows the state where the rotating plate is rotating and the pushing plate has swung to its maximum extent to the rear. [Figure 8] This diagram shows the state after the rotating plate has finished scraping up the debris and the pushing plate has started its pushing motion. [Figure 9] This figure shows the push plate in its maximum forward swing position. [Modes for carrying out the invention]

[0012] Embodiments of the present invention will be described below with reference to the drawings.

[0013] Figure 1 shows the refuse container 1 and its surrounding area of ​​a refuse collection vehicle according to an embodiment, and the refuse input box 2 attached to the rear opening of the refuse container 1. The refuse container 1 is mounted on the chassis (not shown) of the refuse collection vehicle via a chassis frame 4. A cabin is located in front of the refuse container 1, but it is not shown.

[0014] The rear of the refuse input box 2 is provided with a refuse input opening 2a and a rear door 2b for opening and closing the refuse input opening 2a. A refuse loading mechanism 5 is also provided inside the refuse input box 2.

[0015] In this embodiment, the dust collection mechanism 5 is a rotary dust collection mechanism having a rotary plate 5a and a push-in plate 5b. The rotary plate 5a is rotatably provided inside the dust input box 2 and has a function of scraping up the dust input into the dust input box 2 from the dust input port 2a toward the dust storage box 1. Further, the push-in plate 5b is provided inside the dust input box 2 so as to be swingable in the front-rear direction and has a function of pushing the dust scraped up by the rotary plate 5a into the dust storage box 1.

[0016] As shown in FIGS. 2 to 4, a spray nozzle 6 for spraying a chemical solution is attached to the rear surface portion of the push-in plate 5b. In this embodiment, the spray nozzle 6 includes a plurality of, for example, two first spray nozzles 6a located at the middle portion in the width direction of the push-in plate 5b and two second spray nozzles 6b located at both end portions in the width direction of the push-in plate 5b (see FIG. 4). The first spray nozzles 6a and the second spray nozzles 6b are each detachably connected to a nozzle pipe 7 extending in the width direction of the push-in plate 5b. Further, the nozzle pipe 7 is attached to a mounting member 8 fixed to the rear surface portion of the push-in plate 5b via a fixture 9 (bracket 9a and fixing tool 9b) (see FIG. 3), and is connected to a chemical solution pump shown in FIG. 1, for example, an electric chemical solution pump 11 via a chemical solution pipe 10 made of a flexible pipe material such as a resin hose, a rubber hose, or a flexible tube. The electric chemical solution pump 11 is controlled by a control unit 11a. When the electric chemical solution pump 11 operates, the chemical solution stored in the chemical solution tank 1 is pumped to the nozzle pipe 7 via the chemical solution pipe 10 and ejected in a mist form from the first spray nozzles 6a and the second spray nozzles 6b connected to the nozzle pipe 7. In this embodiment, the first spray nozzles 6a and the second spray nozzles 6b are so-called one-fluid nozzles that atomize and eject the chemical solution pumped from the chemical solution pump 11 by the pressure of the chemical solution, but they may also be so-called two-fluid nozzles that atomize and eject the chemical solution pumped from the chemical solution pump 11 by an air flow of compressed air. Further, the chemical solution (the chemical solution stored in the chemical solution tank 1) sprayed from the spray nozzle 6 (6a, 6b) may be a mixture containing a deodorant, a bactericide, etc. as a main ingredient, but in this embodiment, a chemical solution containing an antiviral agent as a main ingredient is used. The chemical solution containing this antiviral agent is preferably harmless to the human body and may also contain a deodorant component, a bactericidal component, etc.

[0017] In this embodiment, the first spray nozzle 6a sprays the chemical liquid downward along the rear surface portion of the pushing plate 5b, and the second injection nozzle 6b is arranged so as to be able to spray the chemical liquid into the gap S between both end portions in the width direction of the pushing plate 5b and the inner surfaces of both side portions of the dust bin 2 (see FIG. 4). Further, as shown enlarged in FIG. 3, the center lines 6a1 and 6b1 of the first spray nozzle 6a and the second spray nozzle 6b are displaced from each other by an angle θ around the center of the nozzle pipe 7, and the center line 6b1 of the second spray nozzle 6b is arranged to be inclined toward the side of the pushing plate 2 with respect to the center line 6a1 of the first spray nozzle 6a.

[0018] Furthermore, in this embodiment, a curtain 13 for shielding the chemical liquid spraying area by the spray nozzles 6 (6a, 6b) from the rear side is provided (see also FIG. 5). The curtain 13 is configured by suspending a sheet material 13a made of a resin sheet, a rubber sheet, for example, a transparent resin sheet, from a mounting member 8 via a suspending member, for example, hook fittings 13b (13b1 and 13b2). The lower end of the sheet material 13a extends below the lower end of the pushing plate 5b. Note that, instead of the curtain 13, an air curtain may be provided. This air curtain may be configured, for example, by arranging one or a plurality of air ejection nozzles above or on the side of the dust inlet 2a and ejecting compressed air from the air ejection nozzles toward the dust inlet 2a to generate a curtain by an air flow, or by arranging an air outlet of an electric blower above or on the side of the dust inlet 2a and blowing air from the air outlet toward the dust inlet 2a to generate a curtain by an air flow.

[0019] The spraying of the chemical solution by the spray nozzles 6 (6a, 6b) may be controlled to spray the chemical solution in accordance with the return movement (rearward swinging) and pushing movement (forward swinging) of the push plate 5b. However, in this embodiment, in order to reduce the consumption of the chemical solution, the spraying of the chemical solution is controlled to coincide with the pushing movement of the push plate 5b. This spraying control is performed, for example, by outputting an operation signal of the push plate 5b from the control unit that controls the loading operation of the waste loading mechanism 5 to the control unit 11a of the electric chemical solution pump 11, and by the control unit 11a switching the supply and stopping of the chemical solution from the electric chemical solution pump 11 to the chemical solution pipe 10. This switching control may involve switching the operation and stopping of the electric chemical solution pump 11, or it may involve switching the supply and stopping of the chemical solution to the chemical solution pipe 10 using the unloading mechanism of the electric chemical solution pump 11 while the electric chemical solution pump 11 is operating. Furthermore, the spraying of the chemical solution by the spray nozzles 6 (6a, 6b) may be continuous or intermittent.

[0020] Figures 6 to 9 schematically show the relationship between the loading operation of waste G by the waste loading mechanism 5 and the spraying timing of the chemical solution by the spray nozzles 6 (6a, 6b).

[0021] Figure 6 shows the state when the rear door 2b of the refuse input box 2 is opened and refuse G is put into the refuse input box 2 from the refuse input opening 2a. When the refuse G is put in, the rotating plate 5a stops in a nearly horizontal position with the scraping surface 2a1 that contacts the refuse G facing upward, and the pushing plate 5b stops in an inclined position, swinging to the furthest forward side (towards the refuse storage box 1). When the refuse loading mechanism 5 is activated in this state, the rotating plate 5a first rotates clockwise in the figure. Then, after the rotating plate 5a has rotated to a position where it does not interfere, the pushing plate 5b swings to the rear.

[0022] As shown in Figure 7, the pushing plate 5b swings to its maximum rearward position and then stops and waits in that position. The rotating plate 5a continues to rotate and begins the scraping operation of the rubbish G. The rubbish G that has been put into the rubbish input box 2 is compressed by the scraping surface 5a1 of the rotating plate 5a and scraped up towards the rubbish containment box 1.

[0023] Figure 8 shows the state after the rotating plate 5a has completed its scraping operation of the waste G and the pushing plate 5b has started its pushing operation. The rotating plate 5a scrapes the waste G up to near the rear opening of the waste container 1 and stops in a nearly horizontal position with its scraping surface 5a1 facing upward. In this state, the pushing plate 5b swings forward, pushing the waste G that has been scraped up onto the scraping surface 5a1 of the rotating plate 5a into the waste container 1. At the same time as, or immediately before or after, the start of the pushing operation of the pushing plate 5b (the start of the forward swing of the pushing plate 5b), the spraying of the chemical solution by the spray nozzles 6 (6a, 6b) begins.

[0024] As shown in Figure 9, when the pushing plate 5b swings to its maximum forward position, all the debris G scraped onto the scraping surface 5a1 of the rotating plate 5a is pushed into the debris collection box 1. The spraying of the chemical solution by the spray nozzles 6 (6a, 6b) continues while the pushing plate 5b is performing its pushing motion (while the pushing plate 5b is swinging to its maximum forward position), and stops simultaneously with, or immediately before or after, the completion of the pushing motion of the pushing plate 5b (when the pushing plate 5b swings to its maximum forward position).

[0025] In this embodiment, a spray nozzle 6 capable of spraying a liquid containing an antiviral agent in accordance with the movement of the push plate 5b is attached to the rear surface of the push plate 5b. The spray nozzle 6 is composed of a first spray nozzle 6a located in the middle of the width direction of the push plate 5b and capable of spraying the liquid downwards, and second spray nozzles 6b located at both ends in the width direction of the push plate 5b and capable of spraying the liquid into the gap S between both ends of the width direction of the push plate 5b and the inner surfaces of both sides of the waste input box 2. As a result, the liquid can be effectively sprayed against waste liquid and its droplets generated during the loading operation of the waste loading mechanism 5, thereby suppressing viruses. This reduces the risk of workers and others becoming infected with viruses.

[0026] In particular, in this embodiment, the spraying of the chemical solution by the spray nozzles 6 (6a, 6b) is controlled so as to spray the chemical solution in accordance with the pushing motion of the pushing plate 5b. Therefore, when the pushing plate 5b is pushed in, the chemical solution can be effectively sprayed against the waste liquid and its droplets that would otherwise leak out to the rear through the gap between the lower end of the pushing plate 5b and the scraping surface 5a1 of the rotating plate 5a, and through the gap S between both ends in the width direction of the pushing plate 5b and the inner surfaces of both sides of the waste input box 2. Furthermore, the chemical solution can be effectively sprayed against the waste liquid and its droplets that adhere to the scraping surface 5a1 of the rotating plate 5a. Moreover, the chemical solution sprayed on the scraping surface 5a1 of the rotating plate 5a can adhere to the waste G when the waste G to be introduced in the next process is scraped up by the scraping surface 5a1 of the rotating plate 5a. In addition, by configuring the system to spray the chemical solution in accordance with the pushing motion of the pushing plate 5b, the amount of chemical solution consumed can be reduced.

[0027] Furthermore, in this embodiment, a curtain 13 is provided that can shield the spray area of ​​the chemical solution by the spray nozzles 6 (6a, 6b) from the rear. This suppresses the scattering of waste liquid and its droplets generated during the loading operation of the waste loading mechanism 5, and also suppresses the scattering of the chemical solution by the wind blown into the spray area from the waste inlet 2a. As a result, combined with the effective spraying of the chemical solution, the risk of workers and others becoming infected with viruses can be further reduced. [Explanation of Symbols]

[0028] 1. Refuse container 2 Garbage disposal box 5. Refuse loading mechanism 5a Rotating plate 5b Push plate 6. Spray nozzle 6a First spray nozzle 6a1 center line 6b Second spray nozzle 6b1 center line 13 Curtains 13a Sheet material

Claims

1. A refuse collection vehicle comprising a refuse collection box, a refuse input box attached to the rear of the refuse collection box, and a refuse loading mechanism provided in the refuse input box, wherein the refuse loading mechanism has a rotating plate rotatably provided inside the refuse input box for scooping up the refuse put into the refuse input box toward the refuse collection box, and a pushing plate oscillating in the front-rear direction inside the refuse input box for pushing the refuse scooped up by the rotating plate into the refuse collection box, A spray nozzle is attached to the rear surface of the aforementioned pressing plate, which sprays the liquid chemical in accordance with the movement of the pressing plate. The refuse collection vehicle is characterized in that the spray nozzle comprises a first spray nozzle located in the middle of the width direction of the push plate and capable of spraying a chemical solution downward, and a second spray nozzle located at both ends in the width direction of the push plate and capable of spraying a chemical solution into the gap between both ends in the width direction of the push plate and the inner surfaces of both sides of the refuse collection box.

2. The refuse collection vehicle according to claim 1, wherein the second spray nozzle is arranged such that the center line of the second spray nozzle is inclined toward the push plate with respect to the center line of the first spray nozzle.

3. The garbage collection vehicle according to claim 1 or 2, wherein the spray nozzle sprays a liquid chemical in accordance with the pushing action of the push plate.

4. A garbage collection vehicle according to any one of claims 1 to 3, wherein a curtain is provided that can shield the area of ​​the chemical solution sprayed by the spray nozzle from the rear.

5. The garbage collection vehicle according to claim 4, wherein the curtain is composed of a sheet material suspended from the rear surface of the push-in plate.

6. A garbage collection vehicle according to any one of claims 1 to 5, wherein the aforementioned liquid contains an antiviral agent.

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