WO2017097082A1 - 推移挤压式电动环卫三轮车 - Google Patents
推移挤压式电动环卫三轮车 Download PDFInfo
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- WO2017097082A1 WO2017097082A1 PCT/CN2016/105026 CN2016105026W WO2017097082A1 WO 2017097082 A1 WO2017097082 A1 WO 2017097082A1 CN 2016105026 W CN2016105026 W CN 2016105026W WO 2017097082 A1 WO2017097082 A1 WO 2017097082A1
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- plate
- push
- garbage
- sleeve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F3/00—Vehicles particularly adapted for collecting refuse
- B65F3/14—Vehicles particularly adapted for collecting refuse with devices for charging, distributing or compressing refuse in the interior of the tank of a refuse vehicle
Definitions
- the invention relates to an electric sanitation tricycle, in particular to an electric sanitation tricycle capable of compressing loaded garbage.
- Electric sanitation tricycles are mainly used in urban sanitation departments and residential properties. Like traditional sanitation vehicles, they can reduce labor intensity, save labor costs and improve work efficiency. However, electric garbage trucks are small in size and simple in structure. It is more convenient and has a lower failure rate. In addition, the electric sanitation tricycle is powered by batteries and is more environmentally friendly.
- the sanitation vehicles on the market are basically dumped by the rollover lifting mechanism into the front end of the car (ie, the garbage entrance near the cab).
- the man uses the tweezers to move back and forth to the left and right. Flat, so that the car can be filled to load more garbage, but the labor is manually moved, the cleaner is labor intensive, and laborious and time consuming; some sanitation vehicles with self-unloading function, when the garbage bin at the front end of the car More, you can also lift the car up and move the garbage backwards to achieve the purpose of loading more garbage, but this will cause mechanical loss and power loss, and it will take time, resulting in an increase in the unsafe factor.
- the garbage in the compartment cannot be fully compressed, so that the space of the compartment can not be fully utilized to achieve the purpose of loading more garbage.
- Some large sanitation vehicles are equipped with a pushing mechanism at the bottom of the compartment. After the garbage collection at the garbage entrance, the garbage is pushed and squeezed to the rear of the compartment (ie, away from the cab) by means of the overall displacement, so that the compartment can be secured. The garbage is fully compressed and can carry more garbage; however, the moving mechanism is larger and the space for occupying the compartment is larger. For the compact electric sanitation tricycle, the utilization rate of the compartment is too low, which is very impractical; and the moving mechanism is not only costly And it is prone to failure.
- the technical problem to be solved by the present invention is to overcome the shortcomings of the above technology and provide an electric sanitation tricycle which is small in size, simple in structure, and capable of compressing loaded garbage.
- a push-pull electric sanitation tricycle including a front end and a passenger compartment, and a garbage entrance is provided at a position near the front of the vehicle compartment, and one side of the compartment is provided.
- a rollover lifting mechanism for dumping garbage into the garbage inlet; further comprising a hydraulic cylinder and a pushing plate suspended from a top plate or a side plate in the vehicle compartment; the hydraulic cylinder being fixed on a cabin inner side plate that is close to the front side of the vehicle head, The pushing plate is fixedly connected to the piston rod of the hydraulic cylinder, and the pressing plate is reciprocally movable along the longitudinal direction of the vehicle under the driving of the piston rod, and the pressing plate is located at a side of the garbage inlet close to the front end when the hydraulic cylinder is in a contracted state;
- the bottom of the pressing plate is provided with a scraping plate which abuts against the pressing plate and extends downward along the pressing plate when the pressing plate moves toward the rear of the vehicle, when the pressing plate moves toward the front end, The bottom of the scraper may be turned toward the rear of the vehicle; the pusher plate is connected to a double sleeve mechanism covering the hydraulic cylinder, the double The layer sleeve mechanism includes a first sle
- the hydraulic cylinder When the invention is used, the hydraulic cylinder is in a contracted state before the garbage is poured into the compartment, and the pressing plate is located on the side of the garbage inlet close to the front end, that is, the distance between the pressing plate and the front end is smaller than the minimum of the garbage inlet and the front end.
- Distance as the garbage is continuously poured into the compartment, when the pile is piled up to a certain height, the piston rod of the hydraulic cylinder extends to drive the pushing plate to push the garbage to the side of the compartment away from the front of the vehicle and is squeezed and compressed; then the piston rod of the hydraulic cylinder is contracted.
- the pusher plate returns to the side of the garbage inlet near the front of the vehicle, continues to pour into the garbage, and repeats until the garbage fills the compartment.
- the present invention places the hydraulic cylinder and the push plate in the upper part of the compartment, and the hydraulic cylinder is suspended in the top plate or the side plate in the compartment, so the volume of the pushing mechanism of the hydraulic cylinder and the pushing plate is small, about 4 of the volume of the compartment. %, and most of the similar institutions on the market need to account for 10% or even more than 15% of the cabin volume. In this way, the space of the cabin can be fully utilized, which is very suitable for a small vehicle such as an electric sanitation tricycle, and more garbage can be loaded in the same volume of the compartment.
- the push plate is disposed on the upper part of the compartment, and the push mechanism is disposed at the bottom of the compartment compared with the existing large sanitation vehicle, and the overall pushing material is compared (the whole garbage is squeezed), which not only occupies a small volume of the compartment. And the power required is also small, and can be directly driven by the battery of the electric sanitation tricycle, which not only reduces the cost, but also is more environmentally friendly.
- the push plate is arranged on the upper part of the compartment, and the sewage in the garbage accumulates at the bottom of the compartment, so that the corrosion caused by the sewage can be reduced, the corrosion resistance is greatly improved, the production and use cost can be reduced, and the service life can be prolonged.
- the double-layered sleeve structure protects the hydraulic cylinder and other pushing devices from being blocked to prevent foreign matter from entering the mechanical structure, or the sewage infiltrates into the internal structure.
- the squeegee has the same width as the urging plate, the top of the squeegee is hinged with the bottom of the urging plate, and the bottom of the urging plate is provided with a downwardly extending stop plate, the squeegee Provided on a side of the stop plate away from the front end, the bottom of the scraper is closer to the floor of the car than the bottom of the stop plate.
- the stop plate limits the blade against the push plate when the push plate moves toward the rear of the vehicle.
- the present invention has a squeegee hinged at the bottom of the push plate, so that the hydraulic cylinder can prevent the push plate from bringing the garbage back to the garbage entrance position during the return stroke, thereby improving the efficiency of loading the garbage.
- a further improvement of the above technical solution is that a guide rail parallel to the piston rod is disposed in the vehicle compartment near the top of the vehicle compartment, and the guide rail is sleeved with a linear bearing movable along the guide rail, and the linear bearing is fixed to the push plate .
- This can enhance the strength of the pusher mechanism composed of the push plate and the hydraulic cylinder, and improve the compression rate of the garbage in the compartment, that is, increase the load of the garbage.
- the guide rail can be installed in the following two ways:
- the top plate of the car is provided with a keel for reinforcing the car, the keel of the top plate is fixed with a hanging beam that is consistent with the longitudinal direction of the car, and two guide rail supports are fixed under the hanging beam.
- the rail is mounted on the rail support;
- the side plate of the car is provided with a keel for reinforcing the car, the keel of the side plate is fixed with a hanging beam that is consistent with the longitudinal direction of the car, and one side of the hanging beam is fixed with two guide rails.
- the support is mounted on the rail support.
- a further improvement of the above technical solution is that the garbage inlet is located at a center position in the width direction of the vehicle compartment, and the piston rod is away from a center position in the width direction of the carriage.
- the width of the pressing plate is substantially the same as the width of the car, so that when the garbage is put into the garbage inlet, the piston rod is not caught by the garbage falling on the piston rod.
- the invention can also be improved as follows:
- a torsion spring is disposed between the pressing plate and the squeegee; when the torsion spring is in a natural state, an angle between the pressing plate and the squeegee is 100-140 degrees;
- the width of the push plate is substantially the same as the width of the car.
- FIG. 1 is a schematic structural view of an embodiment of the present invention.
- Fig. 2 is a schematic view showing the state before the garbage extrusion in the embodiment of the present invention.
- Fig. 3 is a schematic view showing the state after the garbage is squeezed in the embodiment of the present invention.
- FIG. 4 is a schematic view of a torsion spring disposed between a push plate and a squeegee according to an embodiment of the present invention.
- the push-pull electric sanitation tricycle of the present embodiment includes a front end 20 and a car 21 .
- the car 21 is mounted on the frame 12 , and a garbage entrance is provided at a position near the top of the car 21 (not shown).
- the side of the compartment 21 is provided with a rollover lifting mechanism for dumping the garbage into the garbage inlet; further comprising a hydraulic cylinder 7 and a pressing plate 9 suspended from the top plate of the compartment 21, the hydraulic cylinder 7 is driven by a motor, the motor is driven by electric
- the sanitation tricycle comes with battery power.
- the hydraulic cylinder 7 can also be driven using other power sources.
- the hydraulic cylinder is fixed on the inner side panel of the vehicle body which is close to the front side of the vehicle head, and the pressing plate is fixedly connected with the piston rod of the hydraulic cylinder.
- the pressing plate can reciprocate along the length of the carriage under the driving of the piston rod, and the pressing plate is in a contracted state in the hydraulic cylinder.
- the bottom of the push plate is located near the front side of the vehicle; the bottom of the push plate is provided with a scraper, and when the push plate moves toward the rear of the car, the scraper abuts against the push plate and extends downward along the push plate, when the push plate moves toward the front.
- the bottom of the scraper can be turned toward the rear of the vehicle;
- the pusher plate is connected with a double sleeve mechanism covering the hydraulic cylinder, and the double sleeve mechanism includes a first sleeve and a second sleeve fixedly connected to the push cover
- the first sleeve and the second sleeve form a moving pair, and the second sleeve and the first sleeve joint are provided with a barrier soft plate, and a long side of the barrier soft plate is fixed in the second sleeve, and the other long side Laying on the first casing; pushing
- the floor of the moving-type electric sanitation tricycle is divided into two layers.
- the first layer is a garbage isolation net and the second sewage liquid guiding layer, and the sewage flows into the sewage storage tank through the sewage guiding layer.
- the hydraulic cylinder 7 is fixed to the inner side panel of the compartment 21 which is in close contact with the front side of the vehicle head 20.
- the upper part of the inner side panel of the compartment 21 is provided with a fixed lug 10, and the hydraulic cylinder 7 is mounted on the fixed lug 10.
- the pressing plate 9 is fixed to the piston rod of the hydraulic cylinder 7, so that the pressing plate 9 can reciprocate along the longitudinal direction of the carriage 21 under the driving of the piston rod, and the pressing plate 9 is located near the garbage inlet when the hydraulic cylinder 7 is in the contracted state.
- the width of the pressing plate 9 substantially coincides with the width of the compartment 21.
- the hydraulic cylinder 7 can be used to drive the pressing plate 9 to push the garbage toward the rear of the compartment 21 and press it toward the rear door 1, that is, the pressing plate 9 is as shown in FIG.
- the position shown is moved to the position shown in Fig. 3; then the hydraulic cylinder 7 is returned to the original position by the returning force, and a working cycle is completed; after several working cycles, the final compartment 21 is filled up.
- the garbage and the upper half of the compartment 21 have a higher compression ratio.
- the bottom of the pressing plate 9 is provided with a squeegee 11 having the same width as the pressing plate 9.
- the top of the squeegee 11 is hinged with the bottom of the pressing plate 9, and the bottom of the pressing plate 9 is further extended downward.
- the baffle 9-1, the squeegee 11 is disposed on the side of the stop plate 9-1 away from the front end.
- the distance from the bottom of the squeegee 11 to the bottom of the compartment 21 is about half the height of the compartment 21, wherein the height of the compartment 21 is the distance from the bottom of the compartment 21 to the top of the compartment 21.
- the pressing plate 9 is located in the upper half of the compartment 21, and the pressing plate which is conventionally mounted on the bottom of the compartment of the large sanitation vehicle is not easy to jam when the garbage is poured from the garbage inlet, and the liquid in the garbage does not accumulate. More resistant to corrosion on the push plate.
- a squeegee 11 is hinged on the side of the push plate 9 away from the front end 20, so that the push plate 9 does not bring the garbage back to the garbage entrance position during the return stroke of the hydraulic cylinder 7.
- the present embodiment can also provide a torsion spring 11-1 between the pressing plate 9 and the squeegee 11; when the torsion spring 11-1 is in a natural state, the angle between the pressing plate 9 and the squeegee 11 is It is 90-150 degrees, preferably 135-145 degrees.
- the garbage is less likely to get caught on the pressing plate 9 and the squeegee 11, further preventing the pressing plate 9 from bringing the garbage back to the garbage entrance.
- a guide rail 6 parallel to the piston rod is disposed in the position of the carriage 21 near the top of the compartment 21.
- the guide rail 6 is sleeved with a linear bearing 8 slidable along the guide rail 6, and the linear bearing 8 is fixedly connected to the pressing plate 9.
- the top plate of the compartment 21 is provided with a keel for reinforcing the compartment 21, and the keel of the top plate 3 of the compartment 21 is provided with a hanging beam 4 which is aligned with the longitudinal direction of the compartment 21, and the lower side of the hanging beam 4 is fixed.
- Two rail supports 5, the rails 6 are fixed to the hanging beams 4 by rail brackets 5. In this way, the strength of the piston rod and the pressing plate 9 at the time of pushing the material can be increased, and the reliability of the work can be improved.
- the hanging beam 4 can also be fixed on the side plate 2 of the compartment 21, so that the two rail supports 5 are fixed on one side of the hanging beam 4, and the guide rails 6 are mounted on the rail support 5.
- the garbage inlet is disposed at the center position in the width direction of the compartment 21, and the piston rod is disposed at a center position away from the width direction of the compartment 21 (i.e., deviated from the center of the compartment 21). In this way, when the garbage is put into the garbage inlet, the piston rod is not caught by the garbage falling on the piston rod.
- An observation window is provided on the compartment 21. In this way, it is convenient to observe the garbage in the compartment 21 and reasonably arrange the amount of garbage to be loaded.
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Abstract
一种推移挤压式电动环卫三轮车，车厢（21）顶部靠近车头（20）的位置设有垃圾入口，车厢（21）的一侧设有用于将垃圾倒入垃圾入口的提升机构；包括悬挂于车厢（21）内顶板或侧板的液压缸（7）和推压板（9）；液压缸（7）固定在紧抵车头（20）一侧的车厢（21）内侧板上，推压板（9）与液压缸（7）的活塞杆固接，推压板（9）可在活塞杆的驱动下沿车厢（21）长度方向往复移动，推压板（9）在液压缸（7）处于收缩状态时位于垃圾入口的靠近车头（20）的一侧；推压板（9）的底部设有刮板（11），推压板（9）与覆盖于液压缸（7）上的双层套筒机构连接，双层套筒机构包括与推压盖板固定连接的第一套筒和第二套筒，第一套筒和第二套筒形成移动副，第二套筒与第一套筒接缝处设置有阻隔软板。该电动环卫三轮车不但体积小巧、结构简单，而且可对装载的垃圾进行压缩。
Description
本发明涉及一种电动环卫三轮车，尤其涉及一种可对装载的垃圾进行压缩的电动环卫三轮车。
电动环卫三轮车主要应用在城市环卫部门、小区物业等，与传统环卫车一样，可以降低工人的劳动强度、节约劳动成本、提高工作效率，但电动垃圾清运车体积较小，结构也简单，操纵更加方便，而且故障率更低。另外电动环卫三轮车以电池为动力，更环保。
目前市场上的环卫车基本上都是由侧翻提升机构将垃圾倒入车厢前端(即靠近驾驶室的位置的垃圾入口)，当垃圾堆积多了，再由人工用耙子往车后和左右移平，这样可以将车厢填实，从而装载更多的垃圾，但人工移动垃圾，清洁工的劳动强度大，且费工又费时；有些带自卸功能的环卫车，当其车厢前端的垃圾堆多了，还可以将车厢顶起来把垃圾往后移动，达到装载更多垃圾的目的，但这样会造成机械损耗和电能损耗，而且又耗费时间，造成不安全系数增大。但采用以上两种处理方法时，车厢内垃圾不能充分压缩，这样就不能完全利用车厢的空间达到装载更多垃圾的目的。
有些大型的环卫车在车厢底部设置推移机构，在垃圾入口处的垃圾堆集后，采用整体推移的方法将垃圾推移和挤压到车厢后部(即远离驾驶室的位置)，这样可以保证车厢内垃圾充分压缩，能够装载更多的垃圾；但是推移机构较大，占用车厢的空间也较大，对于小巧的电动环卫三轮车来说车厢利用率太低，非常不实用；而且推移机构不但成本很高，而且容易发生故障。
发明内容
本发明要解决技术问题是：克服上述技术的缺点，提供一种体积小巧、结构简单、可对装载的垃圾进行压缩的电动环卫三轮车。
为了解决上述技术问题，本发明提出的技术方案是：一种推移挤压式电动环卫三轮车，包括车头和车厢，所述车厢顶部靠近车头的位置设有垃圾入口，所述车厢的一侧设有用于将垃圾倒入垃圾入口的侧翻提升机构；还包括悬挂于车厢内顶板或侧板上的液压缸和推压板；所述液压缸固定在紧抵车头一侧的车厢内侧板上，所述推压板与液压缸的活塞杆固接，所述推压板可在活塞杆的驱动下沿车厢长度方向往复移动，所述推压板在液压缸处于收缩状态时位于垃圾入口的靠近车头的一侧；所述推压板的底部设有刮板，当所述推压板朝向车尾移动时所述刮板紧贴推压板并沿所述推压板向下延伸，当所述推压板朝向车头移动时，所述刮板的底部可向车尾方向翻转；所述推压板与覆盖于所述液压缸上的双层套筒机构连接，所述双
层套筒机构包括与所述推压盖板固定连接的第一套筒和第二套筒，所述第一套筒和第二套筒形成移动副，所述第二套筒与第一套筒接缝处设置有阻隔软板，所述阻隔软板的一长边固定于所述第二套管内，另一长边搭置于所述第一套管上；所述推移挤压式电动环卫三轮车的车厢底板分两层，第一层为垃圾隔离网、第二层污液引导层，污水通过污液引导层流入污水存储罐。
本发明在使用时，车厢内没有倒入垃圾前，液压缸处于收缩状态，所述推压板位于垃圾入口的靠近车头的一侧，即此时推压板与车头的距离小于垃圾入口与车头的最小距离，随着垃圾不断被倒入车厢，堆积到一定高度时，液压缸的活塞杆伸出驱动推压板将垃圾推至车厢远离车头的一侧并进行挤压压缩；然后液压缸的活塞杆缩回，所述推压板返回垃圾入口的靠近车头的一侧，继续倒入垃圾，周而复始，直到垃圾填满车厢。
本发明带来的有益效果是：
1)本发明将液压缸和推压板设置在车厢上部，液压缸悬挂在车厢内顶板或侧板上，因此由液压缸和推压板的推料机构的体积很小，大约只占车厢容积的4％，而市面上的大多同类机构需要占到车厢容积的10％，甚至15％以上。这样，可以充分利用车厢的空间，非常适合电动环卫三轮车这种小型车辆，在同样容积的车厢中可以装载更多的垃圾。
2)本发明将推压板设置在车厢上部，相比现有大型环卫车中将推料机构设置在车厢底部，进行整体推料相比(将垃圾整体进行挤压)，不但占用车厢的容积小，而且需要的动力也较小，而且可以直接使用电动环卫三轮车自带的电池进行驱动，这样不但降低了成本，而且更加环保。
3)本发明将推压板设置在车厢上部，而垃圾中所带的污水多积聚在车厢底部，因此可以减少污水导致的腐蚀，耐腐蚀性大大提高，可以降低生产和使用成本、延长使用寿命。
4)双层套筒结构将液压缸等推动装置遮盖保护起来，防止异物进入卡住机械结构，或是污水渗入腐蚀内部结构。
上述技术方案的进一步改进是：所述刮板与推压板宽度一致，所述刮板的顶部与推压板的底部铰接，所述推压板底部设有向下延伸的止挡板，所述刮板设置在所述止挡板远离车头的一侧，所述刮板底部相比止挡板底部更接近车厢底板。这样，当所述推压板朝向车尾移动时所述止挡板限制刮板紧贴推压板。另外，本发明在推压板的底部铰接有刮板，这样液压缸在回程时，可以防止推压板将垃圾带回至垃圾入口位置，提高装载垃圾的效率。
上述技术方案的进一步改进是：所述车厢内靠近车厢顶部的位置设有与活塞杆平行的导轨，所述导轨上套设有可沿导轨移动的直线轴承，所述直线轴承与推压板固接。这样可以增强推压板和液压缸组成的推料机构的强度，提高车厢内垃圾的压缩率，即提高垃圾的装载量。
本发明中导轨可以采用以下两种安装方式：
1)所述车厢的顶板上设有用于加固车厢的龙骨，所述顶板的龙骨上固接有与车厢长度方向一致的挂梁，所述挂梁的下方固接有两个导轨支座，所述导轨安装在导轨支座上；
2)所述车厢的侧板上均设有用于加固车厢的龙骨，所述侧板的龙骨上固接有与车厢长度方向一致的挂梁，所述挂梁的一侧固接有两个导轨支座，所述导轨安装在导轨支座上。
上述技术方案的进一步改进是：所述垃圾入口位于车厢宽度方向的中心位置，所述活塞杆远离车厢宽度方向的中心位置。通常所述推压板的宽度与车厢的宽度基本一致，这样，从垃圾入口投入垃圾时，不会因为垃圾落在活塞杆上而将活塞杆卡住。
本发明还可以作以下改进：
1)所述推压板与刮板之间设有扭簧；所述扭簧在自然状态时，所述推压板与刮板之间的夹角为100-140度；
2)所述推压板的宽度与车厢的宽度基本一致。
下面结合附图对本发明作进一步说明。
图1是本发明实施例的结构示意图。
图2是本发明实施例在进行垃圾挤压前的状态示意图。
图3是本发明实施例在进行垃圾挤压后的状态示意图。
图4是本发明实施例在推压板与刮板之间设置扭簧时的示意图。
实施例
本实施例的推移挤压式电动环卫三轮车如图1所示，包括车头20和车厢21，车厢21安装在车架12上，车厢21顶部靠近车头20的位置设有垃圾入口(图中未示出)，车厢21的一侧设有用于将垃圾倒入垃圾入口的侧翻提升机构；还包括悬挂在车厢21顶板的液压缸7和推压板9，液压缸7通过电机驱动，该电机由电动环卫三轮车自带的电池供电。当然液压缸7也可以使用其他动力源驱动。液压缸固定在紧抵车头一侧的车厢内侧板上，推压板与液压缸的活塞杆固接，推压板可在活塞杆的驱动下沿车厢长度方向往复移动，推压板在液压缸处于收缩状态时位于垃圾入口的靠近车头的一侧；推压板的底部设有刮板，当推压板朝向车尾移动时刮板紧贴推压板并沿推压板向下延伸，当推压板朝向车头移动时，刮板的底部可向车尾方向翻转；推压板与覆盖于液压缸上的双层套筒机构连接，双层套筒机构包括与推压盖板固定连接的第一套筒和第二套筒，第一套筒和第二套筒形成移动副，第二套筒与第一套筒接缝处设置有阻隔软板，阻隔软板的一长边固定于第二套管内，另一长边搭置于第一套管上；推
移挤压式电动环卫三轮车的车厢底板分两层，第一层为垃圾隔离网、第二层污液引导层，污水通过污液引导层流入污水存储罐。
本实施例中液压缸7固定在紧抵车头20一侧的车厢21内侧板上，该车厢21内侧板的上部制有固定耳座10，液压缸7安装在固定耳座10上。推压板9与液压缸7的活塞杆固接，这样推压板9就可在活塞杆的驱动下沿车厢21的长度方向往复移动，推压板9在液压缸7处于收缩状态时位于垃圾入口的靠近车头20的一侧。本实施例中推压板9的宽度与车厢21的宽度基本一致。
这样，当垃圾筒在侧翻提升机构将垃圾倒入垃圾入口后，可以利用液压缸7驱动推压板9，将垃圾向车厢21后部推移并向后门1挤压，即将推压板9由图2所示的位置移向如图3所示的位置；然后液压缸7在回程力作用下，推压板9返回原位，完成了一个工作周期；经过数次的工作周期，最终车厢21内填满垃圾并且车厢21的上半部垃圾具有较高的压缩比。
本实施例中推压板9的底部设有刮板11，刮板11与推压板9宽度一致，刮板11的顶部与推压板9的底部铰接，推压板9底部还设有向下延伸的止挡板9-1，刮板11设置在止挡板9-1远离车头的一侧。当推压板9朝向车尾移动时刮板11紧贴推压板9并沿推压板9向下延伸，此时，刮板11的底部低于止挡板9-1的底部，更低于推压板9的底部。当推压板9朝向车头移动时，刮板9的底部可向车尾方向翻转。
本实施例中刮板11底部至车厢21底部的距离大约是车厢21高度的一半，其中车厢21高度即车厢21底部至车厢21顶部的距离。这样，推压板9位于车厢21内的上半部分，相比传统安装于大型环卫车的车厢底部的推压板，在垃圾从垃圾入口倒入时不容易卡料，而且垃圾内的液体不会集聚在推压板上，更耐腐蚀。另外，在推压板9远离车头20的一侧铰接有刮板11，这样液压缸7在回程时，推压板9不会将垃圾带回至垃圾入口位置。
如图4所示，本实施例还可以在推压板9与刮板11之间设置扭簧11-1；扭簧11-1在自然状态时，推压板9与刮板11之间的夹角为90-150度，优选为135-145度。这样在扭簧11-1的作用下，使垃圾更不容易卡在推压板9与刮板11上，进一步避免了推压板9将垃圾带回至垃圾入口处。
本实施例还可以作如下改进：
1)车厢21内靠近车厢21顶部的位置设有与活塞杆平行的导轨6，导轨6上套设有可沿导轨6滑动的直线轴承8，直线轴承8与推压板9固接。如图1所示，车厢21的顶板上设有用于加固车厢21的龙骨，在车厢21的顶板3的龙骨上制有与车厢21长度方向一致的挂梁4，挂梁4的下方固接有两个导轨支座5，导轨6通过导轨支架5固定在挂梁4上。这样，可以增加活塞杆与推压板9在推料时的强度，提高工作的可靠性。
当然，本实施例也可以将挂梁4固定在车厢21的侧板2上，从而在挂梁4的一侧固接两个导轨支座5，并将导轨6安装在导轨支座5上。
2)将垃圾入口设置在车厢21宽度方向的中心位置，活塞杆设置在远离车厢21宽度方向的中心位置(即偏离车厢21中心)。这样，从垃圾入口投入垃圾时，不会因为垃圾落在活塞杆上而将活塞杆卡住。
3)在车厢21上设置观察窗。这样，可以方便观察车厢21内的垃圾情况，合理安排装载的垃圾数量。
本发明不局限于上述实施例所述的具体技术方案，除上述实施例外，本发明还可以有其他实施方式。凡采用等同替换形成的技术方案，均为本发明要求的保护范围。
Claims (7)
- 一种推移挤压式电动环卫三轮车，包括车头和车厢，所述车厢顶部靠近车头的位置设有垃圾入口，所述车厢的一侧设有用于将垃圾倒入垃圾入口的侧翻提升机构；其特征在于：还包括悬挂于车厢内顶板或侧板上的液压缸和推压板；所述液压缸固定在紧抵车头一侧的车厢内侧板上，所述推压板与液压缸的活塞杆固接，所述推压板可在活塞杆的驱动下沿车厢长度方向往复移动，所述推压板在液压缸处于收缩状态时位于垃圾入口的靠近车头的一侧；所述推压板的底部设有刮板，当所述推压板朝向车尾移动时所述刮板紧贴推压板并沿所述推压板向下延伸，当所述推压板朝向车头移动时，所述刮板的底部可向车尾方向翻转；所述推压板与覆盖于所述液压缸上的双层套筒机构连接，所述双层套筒机构包括与所述推压盖板固定连接的第一套筒和第二套筒，所述第一套筒和第二套筒形成移动副，所述第二套筒与第一套筒接缝处设置有阻隔软板，所述阻隔软板的一长边固定于所述第二套管内，另一长边搭置于所述第一套管上；所述推移挤压式电动环卫三轮车的车厢底板分两层，第一层为垃圾隔离网、第二层污液引导层，污水通过污液引导层流入污水存储罐。
- 根据权利要求1所述的推移挤压式电动环卫三轮车，其特征在于：所述刮板与推压板宽度一致，所述刮板的顶部与推压板的底部铰接，所述推压板底部设有向下延伸的止挡板，所述刮板设置在所述止挡板远离车头的一侧；所述刮板底部相比止挡板底部更接近车厢底板。
- 根据权利要求2所述的推移挤压式电动环卫三轮车，其特征在于：所述推压板与刮板之间设有扭簧；所述扭簧在自然状态时，所述推压板与刮板之间的夹角为100-140度。
- 根据权利要求1所述的推移挤压式电动环卫三轮车，其特征在于：所述车厢内靠近车厢顶部的位置设有与活塞杆平行的导轨，所述导轨上套设有能够沿导轨移动的直线轴承，所述直线轴承与推压板固接。
- 根据权利要求4所述的推移挤压式电动环卫三轮车，其特征在于：所述车厢的顶板上设有用于加固车厢的龙骨，所述顶板的龙骨上固接有与车厢长度方向一致的挂梁，所述挂梁的下方固接有两个导轨支座，所述导轨安装在导轨支座上。
- 根据权利要求4所述的推移挤压式电动环卫三轮车，其特征在于：所述车厢的侧板上均设有用于加固车厢的龙骨，所述侧板的龙骨上固接有与车厢长度方向一致的挂梁，所述挂梁的一侧固接有两个导轨支座，所述导轨安装在导轨支座上。
- 根据权利要求1-6之任一所述的移推移挤压式电动环卫三轮车，其特征在于：所述垃圾入口位于车厢宽度方向的中心位置，所述活塞杆远离车厢宽度方向的中心位置。
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