阅读说明：本技术 气流循环工作方式的自吸式垃圾清洁车 (Self-suction type garbage cleaning vehicle adopting air circulation working mode ) 是由 高维珠 高蕾 于 2021-07-09 设计创作，主要内容包括：一种气流循环工作方式的自吸式垃圾清洁车,包括电动三轮车底盘,电动三轮车底盘上设有吸尘风机、垃圾过滤箱、粉尘过滤箱、底吸装置、侧吸管和垃圾收集袋,用于装配垃圾收集袋的挂袋框、袋体托架分别采用可折叠结构和可伸缩结构,底吸装置内设有上、下层水平隔板和倾斜的两排吹风管,吸尘风机、垃圾过滤箱、粉尘过滤箱、底吸装置、侧吸管组成地面垃圾底吸及侧吸气流循环工作回路。本垃圾清洁车体积小,造价低,运行灵活,适用于城市道路、路边绿化带及园林路面的清洁；并且利用气流循环吸拾垃圾效果好,能够提高环境清洁工作效率,同时在完成清洁工作的过程中无二次扬尘,能有效减少粉尘污染,降低空气中可吸入颗粒物的含量,提高空气质量。(The utility model provides an air current circulation working method inhales formula rubbish cleaning cart certainly, including electric tricycle chassis, be equipped with dust absorption fan on the electric tricycle chassis, the rubbish rose box, the dust rose box, end inhale the device, side straw and refuse collection bag for the hanging bag frame of assembly refuse collection bag, bag body bracket adopts beta structure and extending structure respectively, end inhale and be equipped with two rows of blowing pipes of upper and lower floor's horizontal baffle and slope in the device, dust absorption fan, the rubbish rose box, the dust rose box, end inhale the device, side straw constitutes ground rubbish end and inhales the air current circulation working circuit. The garbage cleaning vehicle has small volume, low cost and flexible operation, and is suitable for cleaning urban roads, roadside green belts and garden pavements; the garbage collecting device has the advantages that the garbage collecting effect is good by utilizing the air flow circulation, the working efficiency of environment cleaning can be improved, meanwhile, no secondary dust is raised in the process of completing cleaning work, the dust pollution can be effectively reduced, the content of inhalable particles in the air is reduced, and the air quality is improved.)

1. The utility model provides an air current circulation working method from inhaling formula rubbish cleaning cart, includes electric tricycle chassis (1) on be equipped with dust absorption fan (2), rubbish rose box (3), dust rose box (4) and battery box (5), the induction port of dust absorption fan (2) with the air current outlet of dust rose box (4) is connected, the air current import of dust rose box (4) with the air current outlet of rubbish rose box (3) is connected, characterized by: a bottom suction device (6) is arranged below the middle part of the electric tricycle chassis (1), a bag hanging frame (7) is arranged below the garbage filter box (3), an upper end bag opening of a garbage collection bag (8) is connected with the bag hanging frame (7), the bag bottom of the garbage collection bag (8) is connected with a bag body bracket (9) arranged at the rear part of the electric tricycle chassis (1), an exhaust port of the dust collection fan (2) is connected with a bottom suction device air inlet three-way valve (11) through a flexible pipe (10), the lower end of a side suction pipe (12) is connected with the bottom suction device (6), and the upper end of the side suction pipe (12) is connected to an air inlet cavity of the garbage filter box (3) through a flexible hose (13); the bottom suction device (6) is provided with a shell (61) which is of an inverted trapezoidal section and is provided with an upper cover plate, one end of the upper cover plate of the shell (61) is provided with an air inlet (62) connected with an air inlet three-way valve (11) of the bottom suction device, the other end of the upper cover plate of the shell (61) is provided with a bottom suction device air outlet (63) connected with the side suction pipe (12), the lower port of the shell (61) is provided with a fixed rubber plate (64) arranged at the two ends and the rear side of the shell, the front side of the lower port of the shell (61) is provided with an adjustable rubber plate (65), the adjustable rubber plate (65) is provided with a pair of rubber plate lifting electric push rods (66), the bottom suction device (6) is provided with a pair of bottom suction device lifting electric push rods (67), an upper horizontal partition plate (68) and a lower horizontal partition (69) are arranged in the shell (61), and the upper horizontal partition plate (68) and the shell (61) form a pressure equalizing chamber, the lower-layer horizontal partition plate (69) and the fixed rubber plate (64) and the adjustable rubber plate (65) form a temporary garbage storage chamber, two rows of blowing pipes (610) inclined towards the direction of the air outlet (63) of the bottom suction device are arranged in the shell (61), the upper and lower pipe openings of the blowing pipes (610) are respectively communicated with the pressure equalizing chamber and the temporary garbage storage chamber, and the air outlet (63) of the bottom suction device is communicated with the temporary garbage storage chamber.

2. The self-suction type garbage cleaning vehicle with the airflow circulation working mode as claimed in claim 1, which is characterized in that: the angle alpha of the air blowing pipe (610) inclining towards the air outlet (63) of the bottom suction device is 45-55 degrees.

3. The self-suction type garbage cleaning vehicle with the airflow circulation working mode as claimed in claim 1, which is characterized in that: the tail seat end of the rubber plate lifting electric push rod (66) is hinged with a support (611) fixedly arranged on the shell (61), the end part of a push rod of the rubber plate lifting electric push rod (66) is connected with a lining plate (612) arranged on the inner side of an adjustable rubber plate (65), a wheel carrier plate (613) is arranged on the inner side surface of the lining plate (612), the wheel carrier plate (613) is arranged in a wheel carrier plate moving long hole formed in the front side plate of the shell (61), and a roller (614) matched with the inner side surface of the front side plate of the shell (61) is assembled on the inner side of the front side plate of the shell (61) through the wheel carrier plate (613).

4. The self-suction type garbage cleaning vehicle with the airflow circulation working mode as claimed in claim 1, which is characterized in that: the garbage collection bag (8) is a cloth bag with a rectangular cross section, the cloth bag is made of waterproof canvas through gluing, bag hanging holes (81) are distributed around the opening of the upper end of the garbage collection bag (8) and the bottom of the bag body, and a bag body connecting nylon thread gluing (82) which surrounds the opening for a circle is arranged on the inner side surface of the opening of the upper end of the garbage collection bag (8).

5. The self-suction type garbage cleaning vehicle with the airflow circulation working mode as claimed in claim 1, which is characterized in that: the bag hanging frame (7) is formed by connecting a rectangular main frame body (71) and a rectangular auxiliary frame body (72) which have the same external dimension through a hinge (73), the main frame body (71) is provided with bolt holes (74) used for being connected with the garbage filter box (3), a main frame body bag hanging column (75) matched with a bag hanging hole (81) of the garbage collection bag (8), and a main frame body connecting nylon thread gluing (76) matched with the bag body connecting nylon thread gluing (82), a frame body folding hook (77) is arranged on the front frame of the main frame body (71), the auxiliary frame body (72) is provided with a main frame body butt sealing strip (78), an auxiliary frame body hanging bag column (79) and an auxiliary frame body connecting nylon thread gluing (710), a frame body unfolding hanging ring (711) is arranged on the rear frame of the auxiliary frame body (72), at least two sliding seal plates (712) are provided in the sub-frame (72).

6. The self-suction type garbage cleaning vehicle with the airflow circulation working mode as claimed in claim 1, which is characterized in that: bag body bracket (9) including fixed frame (91) that is the rectangle, the both sides frame of fixed frame (91) is the channel steel structure be equipped with fixed frame on the preceding frame of fixed frame (91) and the both sides frame and hang bag post (92) fixed frame (91) interior sliding fit set up flexible frame (93) be equipped with on the back frame of flexible frame (93) and fix and hang bag post (94) be equipped with on the both sides frame of flexible frame (93) and scalable string bag post (95) be equipped with on the both sides frame of flexible frame (93) be equipped with the fixed jackscrew (96) of flexible frame on the both sides frame of fixed frame (91).

7. The self-suction type garbage cleaning vehicle with the airflow circulation working mode as claimed in claim 1, which is characterized in that: the air inlet three-way valve (11) of the bottom suction device comprises a three-way pipe body (111), a valve plate (112) is arranged in the three-way pipe body (111), and a valve plate electric push rod (113) connected with the valve plate (112) is arranged outside the three-way pipe body (111).

8. The self-suction type garbage cleaning vehicle with the airflow circulation working mode as claimed in claim 1, which is characterized in that: the side suction pipe (12) comprises a rigid pipe body (121), and a handle (122) is arranged at the upper part of the rigid pipe body (121).

Technical Field

The invention relates to a cleaning vehicle, in particular to a self-suction type garbage cleaning vehicle adopting an airflow circulation working mode.

Background

The traditional manual cleaning mode is adopted to keep the road, roadside green belts and garden pavement environment clean, and the requirement of rapid development of urban and garden construction cannot be met. Although a large garbage cleaning vehicle is available in the market at present, the garbage cleaning vehicle is relatively large in size, inflexible in operation and not suitable for cleaning garbage in small occasions, particularly road side green belts and garden road surface environments. The applicant of the prior patent application with the application number of CN202021921893.X discloses a road surface cleaning vehicle with an air flow circulation working mode, road surface dust and garbage are removed by adopting the air flow circulation working mode, the garbage and the dust on the ground are stirred by wind power provided by a dust collection fan, the garbage and the dust are in a suspension state in a garbage suction and collection cover and then are conveyed into a garbage can and a dust filter box, the working efficiency of the cleaning vehicle is greatly improved, secondary dust raising is avoided in the process of completing road cleaning, dust pollution can be reduced, the air quality is improved, and the inhalable content of particulate matters in the air is reduced. But the front structure of the garbage suction and pickup cover is not beneficial to the stability of the travelling crane, and the suction and pickup effect of the garbage also needs to be further improved; meanwhile, the assembled garbage can stores garbage, the assembly structure is relatively complex, and the manufacturing cost is relatively high; and the road surface cleaning vehicle is not suitable for cleaning the garbage of the roadside green belt.

Disclosure of Invention

The invention aims to solve the problems and provides a self-suction type garbage cleaning vehicle with an airflow circulation working mode, which has the advantages of small volume, simple structure, low manufacturing cost, flexible and stable operation and suitability for cleaning urban roads, roadside green belts and garden pavements; the effect of sucking and picking up the garbage by utilizing the air flow circulation is good, the working efficiency of environmental cleaning can be greatly improved, secondary dust raising is avoided in the process of completing the cleaning work, the dust pollution can be effectively reduced, the content of inhalable particles in the air is reduced, and the air quality is improved.

The technical scheme for realizing the purpose is as follows: the self-suction type garbage cleaning vehicle comprises an electric tricycle chassis, wherein a dust suction fan, a garbage filter box, a dust filter box and a battery box are arranged on the electric tricycle chassis, an air suction port of the dust suction fan is connected with an air flow outlet of the dust filter box, an air flow inlet of the dust filter box is connected with an air flow outlet of the garbage filter box, a bottom suction device is arranged below the middle part of the electric tricycle chassis, a bag hanging frame is arranged below the garbage filter box, an upper end bag opening of a garbage collection bag is connected with the bag hanging frame, the bag bottom of the garbage collection bag is connected with a bracket arranged at the rear part of the electric tricycle chassis, an air outlet of the dust suction fan is connected with an air inlet three-way valve of the bottom suction device through a flexible pipe, and the lower end of a side suction pipe is connected with the bottom suction device, the upper end of the side suction pipe is connected to an air inlet cavity of the garbage filter box through a telescopic hose; the bottom suction device is provided with a shell with an inverted trapezoidal section and an upper cover plate, one end of the upper cover plate of the shell is provided with an air inlet connected with an air inlet three-way valve of the bottom suction device, the other end of the upper cover plate of the shell is provided with an air outlet of the bottom suction device connected with the side suction pipe, the lower port of the shell is provided with fixed rubber plates arranged at the two ends and the rear side of the shell, the front side of the lower port of the shell is provided with an adjustable rubber plate which is assembled with a pair of rubber plate lifting electric push rods, the bottom suction device is assembled with a pair of bottom suction device lifting electric push rods, an upper horizontal partition plate and a lower horizontal partition plate are arranged in the shell, the upper horizontal partition plate and the shell form a pressure equalizing chamber, the lower horizontal partition plate and the fixed rubber plate and the adjustable rubber plate form a garbage temporary storage chamber, and two blowing pipes inclined towards the air outlet direction of the bottom suction device are arranged in the shell, the upper and lower pipe orifices of the blowpipe are respectively communicated with the pressure equalizing chamber and the temporary garbage storage chamber, and the air outlet of the bottom suction device is communicated with the temporary garbage storage chamber.

According to the self-suction type garbage cleaning vehicle adopting the air circulation working mode, the angle alpha of the air blowing pipe inclining to the air outlet direction of the bottom suction device is 45-55 degrees.

Foretell air current circulation working method inhale formula rubbish cleaning cart certainly, rubber slab lift electric putter's tailstock end with set firmly support hinge on the casing is connected, rubber slab lift electric putter's push rod tip and the welt of setting in adjustable rubber slab inboard are connected be equipped with the wheel carrier board on the medial surface of welt, the wheel carrier board arrange in the wheel carrier board that sets up on the casing front side board removes in the slot the front side inboard of casing through wheel carrier board assembly with casing front side inboard side complex gyro wheel.

The self-suction type garbage cleaning vehicle adopting the air circulation working mode is characterized in that the garbage collection bag is a rectangular-section cloth bag made of waterproof canvas through gluing, bag hanging holes are distributed around the upper bag opening of the garbage collection bag and around the bottom of the bag body, and a bag body connecting nylon thread gluing surrounding the bag opening for a circle is arranged on the inner side surface of the upper bag opening of the garbage collection bag.

Foretell air current circulation working method from inhaling formula rubbish cleaning cart, hang the bag frame and pass through hinged joint by the same rectangle main frame body of overall dimension and the vice frame body of rectangle and form main frame body on be equipped with be used for with the bolt hole that the rubbish rose box is connected and with bag post is hung to the bag of hanging of rubbish collection bag hole complex main frame body and with the nylon thread gluing is connected to bag body coupling nylon thread gluing complex main frame body is equipped with the folding couple of frame body on the preceding frame of main frame body vice frame body on be equipped with main, vice frame body butt joint sealing strip and vice frame body and hang bag post and vice frame body coupling nylon thread gluing be equipped with on the frame behind the vice frame body and expand the framework link be equipped with two piece at least sliding seal boards in the frame body of vice frame body.

The self-suction type garbage cleaning vehicle adopting the air circulation working mode is characterized in that the bag body bracket comprises a rectangular fixing frame, the two side frames of the fixing frame are of a channel steel structure, a fixing bag hanging convex column is arranged on the front frame and the two side frames of the fixing frame, a telescopic frame is arranged in the fixing frame in a sliding fit mode, a fixing bag hanging convex column is arranged on the rear frame of the telescopic frame, a telescopic bag hanging convex column is arranged on the two side frames of the telescopic frame, and a telescopic frame fixing jackscrew is arranged on the two side frames of the fixing frame.

According to the self-suction type garbage cleaning vehicle adopting the air circulation working mode, the air inlet three-way valve of the bottom suction device comprises a three-way pipe body, a valve plate is arranged in the three-way pipe body, and a valve plate electric push rod connected with the valve plate is arranged outside the three-way pipe body.

According to the self-suction type garbage cleaning trolley adopting the air circulation working mode, the side suction pipe comprises the rigid pipe body, and the handle is arranged at the upper part of the rigid pipe body.

The invention has the beneficial effects that:

1. the electric tricycle chassis is adopted, the cleaning vehicle is small in size and flexible in operation, can be used for cleaning the environment of urban roads, is particularly suitable for cleaning garbage in small occasions, and is particularly suitable for cleaning the environment of garden pavements and roadside green belts.

2. The bottom suction device is arranged in the middle of the lower portion of the electric tricycle chassis, the whole gravity center of the cleaning vehicle is reasonable, and the running stability of the cleaning vehicle is improved.

3. The cleaning vehicle has the advantages that the cleaning vehicle adopts the working mode of air circulation to remove dust, garbage and fallen leaves on the road surface, the fan provides wind power to match with the bottom suction device to stir the dust, the garbage and the fallen leaves on the ground, and the circulating air flow is utilized to convey the dust, the garbage and the fallen leaves into the garbage collection bag and the dust filter box.

4. The bottom suction device has reasonable structural design, good garbage suction effect and can adjust the size of the garbage inlet according to the type of the sucked and picked garbage, thereby improving the cleaning performance of the cleaning vehicle on different occasions.

5. The bag is used as a garbage collecting and storing container, the price is low, the use is convenient, and the assembly structure is simple.

6. Through the folding bag frame of hanging and the telescopic bag body bracket of configuration, can be according to the clear rubbish kind of wanting, for example rubbish mainly is road surface dust particulate matter, for example rubbish mainly falls the leaf for garden road surface again, and selects two kinds of garbage collection bags of assembly size to the adaptability and the work efficiency of rubbish cleaning cart have been improved.

7. Through the assembly side straw, can carry out the rubbish beyond the road surface and inhale and pick up.

Drawings

Fig. 1 is a schematic view of the main structure of the self-suction garbage cleaning vehicle in the air circulation working mode.

Fig. 2 is a rear view structure schematic diagram of the self-suction type garbage cleaning vehicle in the air current circulation working mode.

Fig. 3 is a schematic structural view of a bottom suction device of the self-suction type garbage cleaning vehicle in the air current circulation working mode.

Fig. 4 is a sectional structure and an air flow operation schematic diagram of a bottom suction device of the self-suction type garbage cleaning vehicle in the air flow circulation working mode.

Fig. 5 is a schematic sectional structure view of the bottom suction device of the self-suction type garbage cleaning vehicle with the air circulation working mode.

Fig. 6 is a schematic structural view of a garbage collection bag of the self-suction type garbage cleaning vehicle in the air circulation working mode.

Fig. 7 is a schematic structural view of a bag hanging frame of the self-suction type garbage cleaning vehicle in the air circulation working mode.

Fig. 8 is a schematic structural diagram of a bag bracket of the self-suction type garbage cleaning vehicle in the air circulation working mode.

Fig. 9 is a schematic sectional structure view of an air inlet three-way valve of a bottom suction device of the self-suction type garbage cleaning vehicle in the air circulation working mode.

Fig. 10 is a schematic view of the side suction pipe structure of the self-suction type garbage cleaning vehicle in the air circulation working mode.

In the figure: 1. a chassis of the electric tricycle; 2. a dust collection fan; 3. a garbage filter box; 4. a dust filter box; 5. a battery box; 6. a bottom suction device; 61. a housing; 62. an air inlet; 63. an air outlet; 64. fixing the rubber plate; 65. the rubber plate can be adjusted; 66. the rubber plate lifts the electric push rod; 67. the bottom suction device lifts the electric push rod; 68. an upper horizontal separator plate; 69. a lower horizontal partition plate; 610. a blowpipe; 611. a support; 612. a liner plate; 613. a wheel frame plate; 614. a roller; 7. hanging a bag frame; 71. a main frame body; 72. a sub-frame body; 73. a hinge; 74. bolt holes; 75. a main frame body bag hanging convex column; 76. the main frame body is connected with a nylon thread gluing; 77. the frame body is folded and hooked; 78. the main frame body and the auxiliary frame body are butted with the sealing strip; 79. the auxiliary frame body is provided with a bag hanging convex column; 710. the auxiliary frame body is connected with a nylon thread gluing; 711. a frame body unfolding hanging ring; 712. a sliding seal plate; 8. a refuse collection bag; 81. hanging a bag hole; 82. the bag body is connected with a nylon thread gluing; 9. a bag body bracket; 91. a fixing frame; 92. fixing the convex column of the hanging bag; 93. a telescopic frame; 94. fixing the convex column of the hanging bag; 95. a telescopic hanging bag convex column; 96. fixing a jackscrew by the telescopic frame; 10. a flexible tube; 11. an air inlet three-way valve of the bottom suction device; 111. a three-way pipe body; 112. a valve plate; 113. a valve plate electric push rod; 12. a side suction pipe; 121. a rigid pipe body; 122. a handle; 13. a flexible hose.

Detailed Description

The embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in figures 1 and 2, the self-suction type garbage cleaning vehicle adopting the air flow circulation working mode comprises a front two-wheeled electric tricycle chassis 1, two front wheels are used for steering and driving, the cleaning vehicle is small and flexible, and a power lithium battery is arranged in a battery box 5 below a driver seat, so that the stability of the cleaning vehicle is improved. The middle part of the electric tricycle chassis 1 is provided with a dust collection fan 2, a dust filter box 4 is arranged above the dust collection fan 2, and the dust filter box 4 consists of a box body and a dust filter screen arranged in the box body. The garbage filter box 3 is arranged at the upper part of the rear side of the dust filter box 4 and consists of a box body and a garbage filter screen arranged in the box body, and a garbage descending opening is arranged below an air inlet cavity of the box body of the garbage filter box. The air suction port of the dust suction fan 2 is connected with the air flow outlet of the dust filter box 4, and the air flow inlet of the dust filter box 4 is connected with the air flow outlet of the garbage filter box 3. The bottom suction device 6 is arranged below the middle part of the electric tricycle chassis 1, the bag hanging frame 7 is arranged below the garbage filtering box 3, the upper end bag opening of the garbage collecting bag 8 is connected with the bag hanging frame 7, and the bag bottom of the garbage collecting bag 8 is connected with the bag body bracket 9 arranged at the rear part of the electric tricycle chassis 1. The exhaust port of the dust collection fan 2 is connected with the air inlet of an air inlet three-way valve 11 of the bottom suction device through a flexible pipe 10. The lower end of the side suction pipe 12 is connected with the bottom suction device 6, and the upper end of the side suction pipe 12 is connected to the air inlet cavity of the garbage filter box 3 through a flexible hose 13.

As shown in fig. 3, the bottom suction device 6 has a housing 61 with an inverted trapezoid cross section and an upper cover plate, one end of the upper cover plate of the housing 61 is provided with an air inlet 62 connected with the outlet of the bottom suction device air inlet three-way valve 11, and the other end of the upper cover plate of the housing 61 is provided with a bottom suction device air outlet 63 connected with the side suction pipe 12. The lower port of the shell 61 is provided with fixed rubber plates 64 arranged at the two ends and the rear side of the shell, the front side of the lower port of the shell 61 is provided with an adjustable rubber plate 65, and the adjustable rubber plate 65 is provided with a pair of rubber plate lifting electric push rods 66. The fixed rubber plate 64 and the adjustable rubber plate 65 form a garbage suction and picking cavity with an inverted trapezoidal section, and a lower port of the garbage suction and picking cavity corresponds to the ground. The fixed rubber plate 64 is fixedly connected with the shell 61 through a bolt, and the adjustable rubber plate 65 is used for adjusting the opening of the suction port through a pair of assembled rubber plate lifting electric push rods 66 so as to meet the requirements of different garbage entering the suction chamber. The bottom suction device 6 is equipped with a pair of bottom suction device lifting electric push rods 67 for adjusting the distance between the bottom suction device and the ground. In fig. 3, the bottom suction device lifting electric push rod 67 drives the bottom suction device 6 to lift through two groups of connecting rods, which is beneficial to improving the stability of the bottom suction device 6.

As shown in fig. 4, an upper horizontal partition 68 and a lower horizontal partition 69 are provided in the housing 61, the upper horizontal partition 68 and the housing 61 form a pressure equalizing chamber, the lower horizontal partition 69 and the fixed rubber plate 64 and the adjustable rubber plate 65 form a temporary garbage storage chamber, two rows of blowing pipes 610 inclined toward the direction of the air outlet 63 of the bottom suction device are provided in the housing 61, the upper and lower pipe openings of the blowing pipes 610 are respectively communicated with the pressure equalizing chamber and the temporary garbage storage chamber, and the air outlet 63 of the bottom suction device is communicated with the temporary garbage storage chamber. The blowpipes 610 are rectangular cross-sectional pipes, the lower portion of the shell 61 is an isosceles trapezoid cross-section, and the two rows of blowpipes 610 are symmetrically arranged with respect to the center line of the isosceles trapezoid cross-section. The two rows of blowing pipes 610 are matched with the shell 61, the fixed rubber plate 64 and the adjustable rubber plate 65, so that air flows flowing towards the middle of the suction port and towards the direction of the air outlet of the bottom suction device can be formed in the garbage temporary storage chamber, and meanwhile, the garbage in the temporary storage chamber is wrapped and carried to move towards the direction of the air outlet of the bottom suction device and is discharged out of the bottom suction device through the air outlet 63. The angle of the blowing pipe 610 inclining towards the air outlet 63 of the bottom suction device determines the vertical component and the horizontal component of the air blown to the ground garbage, and simultaneously determines the garbage suction effect of the bottom suction device, and experiments prove that the angle alpha of the blowing pipe 610 inclining towards the air outlet 63 of the bottom suction device is suitable for being selected to be 45-55 degrees, and the preferred inclination angle alpha is 50 degrees.

As shown in fig. 5, the tail end of the rubber plate lifting electric push rod 66 is hinged to a bracket 611 fixed on the housing 61, the end of the rubber plate lifting electric push rod 66 is connected to a lining plate 612 disposed inside the adjustable rubber plate 65, a pair of wheel frame plates 613 are disposed on the inner side of the lining plate 612, the wheel frame plates 613 are disposed in wheel frame plate moving slots disposed on the front side plate of the housing 61, and rollers 614 engaged with the inner side surface of the front side plate of the housing 61 are mounted on the inner side of the front side plate of the housing 61 through the wheel frame plates 613. The adjustable rubber plate 65 is driven by the rubber plate lifting electric push rod 66 to move up and down along the front side plate of the shell 61, so that the opening degree of a suction port of the bottom suction device can be adjusted.

As shown in fig. 6, the garbage collection bag 8 of the self-suction garbage cleaning vehicle adopting the air circulation working mode is a rectangular-section cloth bag made of double-sided waterproof canvas bonded by an adhesive, bag hanging holes 81 are distributed around the upper end bag opening of the garbage collection bag 8 and around the bottom of the bag body, and during specific implementation, the bag hanging holes 81 are provided with hole buckles. The inner side surface of the upper bag opening of the garbage collection bag 8 is provided with a bag body connecting nylon thread gluing 82 which surrounds the bag opening for a circle.

Referring to fig. 7, the bag hanging frame 7 of the self-suction garbage cleaning vehicle with the air circulation working mode is of a foldable structure so as to meet the use requirements of two garbage collecting bags 8 of a large garbage collecting bag and a small garbage collecting bag. The bag hanging frame 7 is formed by connecting a rectangular main frame body 71 and a rectangular auxiliary frame body 72 which have the same external dimension through at least two auxiliary hinges 73. The main frame body 71 is distributed with bolt holes 74 used for being connected with the garbage filter box 3 and a main frame body bag hanging convex column 75 matched with a bag hanging hole 81 of the garbage collection bag 8, a nylon thread gluing 76 is connected with the main frame body matched with the bag body connection nylon thread gluing 82 along the front frame and two side frames of the main frame body bag hanging convex column 75, a frame body folding hook 77 is arranged in the middle of the inner side of the front frame of the main frame body 71, the frame body folding hook 77 is hinged with the main frame body 71 and is assembled with a torsion spring or a pressure spring, so that the rear frame of the auxiliary frame body 72 can enter the hook body of the hook and keep the matching of the hook body and the rear frame of the auxiliary frame body 72. The auxiliary frame body 72 is provided with a main frame body butt sealing strip 78 and an auxiliary frame body butt sealing strip 78, the main frame body butt sealing strip 78 and the auxiliary frame body butt sealing strip 78 are elastic rubber plates, and gaps are formed in positions of the elastic rubber plates corresponding to the main frame body bag hanging convex columns 75. The bag hanging convex columns 79 matched with the bag hanging holes 81 of the garbage collection bag 8 are distributed on the rear frame and the two side frames of the auxiliary frame 72, the auxiliary frame body connection nylon fasteners 710 are arranged below the auxiliary frame body bag hanging convex columns 79 along the rear frame and the two side frames of the auxiliary frame 72, the main frame body bag hanging convex columns 75, the auxiliary frame body bag hanging convex columns 79 are matched with the bag hanging holes 81 at the bag mouth of the garbage collection bag 8 to realize the bag hanging connection of the garbage collection bag 8 and the bag hanging frame 7, and the main frame body connection nylon fasteners 76, the auxiliary frame body connection nylon fasteners 710 are matched with the bag body connection nylon fasteners 82 to realize the connection and sealing of the garbage collection bag 8 and the bag hanging frame 7. A frame body unfolding hanging ring 711 is arranged on the rear frame of the auxiliary frame body 72 and is used for connecting the unfolded auxiliary frame body 72 with a pull rod arranged on the vehicle body to realize the position fixation of the unfolded auxiliary frame body 72. At least two sliding seal plates 712 for sealing the expanded sub-frame 72 are provided in the frame of the sub-frame 72. The edge of the sliding seal plate 712 is fitted into a sliding caulking groove on the inner side of the frame of the sub-frame 72, and the sliding seal plate 712 is provided with a seal strip for sealing the joint between the sliding seal plate 712 and the sub-frame 72 and the joint between the two sliding seal plates.

As shown in fig. 8, the bag body bracket 9 of the self-suction type garbage cleaning vehicle adopting the air circulation working mode is of a telescopic structure so as to meet the use requirements of two garbage collecting bags 8 of a large garbage collecting bag and a small garbage collecting bag. Bag body bracket 9 including the fixed frame 91 that is the rectangle, the both sides frame of fixed frame 91 is channel steel structure, it hangs a bag projection 92 to distribute on the preceding frame of fixed frame 91 and the both sides frame, sliding fit sets up flexible frame 93 in fixed frame 91, it has fixed bag projection 94 to hang to distribute on the back frame of flexible frame 93, is equipped with scalable string bag projection 95 on the both sides frame of flexible frame 93. The telescopic bag hanging convex column 95 adopts a telescopic pin, and after the telescopic frame 93 is pulled out, a pin body is pulled out to be matched with the bag hanging hole 81 at the bottom of the garbage collection bag 8. The fixed frame 91 is provided with a telescopic frame fixing jackscrew 96 on both side frames for fixing the telescopic frame 93 after it is telescopic. As shown in fig. 8, rollers may be disposed on two side frames of the telescopic frame 93 to facilitate the telescopic operation of the telescopic frame 93.

The convex column for matching with the bag hanging hole 81 is designed into an anti-slip structure with a rough surface or a ring groove so as to increase the stability of matching between the convex column for hanging the bag and the bag hanging hole.

Fig. 9 shows the specific structure of the air intake three-way valve 11 of the bottom suction device of the self-suction type garbage cleaning vehicle in the air circulation working mode. The bottom suction device air inlet three-way valve 11 comprises a Y-shaped three-way pipe body 111, the inlet of the three-way pipe body 111 is connected with the exhaust port of the dust collection fan 2 through the flexible pipe 10, the outlet of the three-way pipe body 111 is connected with the air inlet 62 of the bottom suction device 6, the exhaust port of the three-way pipe body 111 is provided with a port sealing cover and is provided with exhaust holes, a valve plate 112 hinged with the three-way pipe body 111 is arranged in the three-way pipe body 111, a valve plate electric push rod 113 is arranged outside the three-way pipe body 111, the tail seat end of the valve plate electric push rod 113 is hinged with the three-way pipe body 111, and the push rod end of the valve plate electric push rod 113 is hinged with the plate handle end of the valve plate 112. The valve plate 112 is controlled by the valve plate electric push rod 113 to stop the air flow from the inlet to the outlet of the three-way pipe body 111 or stop the air flow from the inlet to the exhaust port of the three-way pipe body 111.

As shown in fig. 10, the side suction pipe 12 of the self-suction type garbage cleaning cart with the air circulation working mode comprises a carbon fiber rigid pipe body 121, a handle 122 for performing ground garbage suction by holding the rigid pipe body 121 in hand is arranged at the upper part of the rigid pipe body 121, and the handle 122 is composed of a handle rod, a grip and an arc-shaped arm support arranged at the rear end of the handle rod. The lower end of the rigid pipe body 121 is connected with the air outlet 63 of the bottom suction device in a plug-in manner.

When this air current circulation working method's self-priming rubbish cleaning cart is used for cleaning operation, start dust absorption fan 2, ground rubbish is inhaled through end suction device 6 and is picked up and carry out the rubbish filtration in getting into rubbish rose box 3 along with the air current, and rubbish such as cigarette butt, peel, wastepaper, fallen leaves that filter down falls into rubbish collection bag 8, and the air current that carries the dust gets into carries out the dust filtration in the dust rose box 4, and the air after the filtration gets into end suction device 6 again through dust absorption fan 2 gas vent and carries out cycle work. When it is necessary to clean the floor garbage which is difficult to cover by the bottom suction device 6, such as the garbage stored at the corner of the road surface connected with the road shoulder, the garbage in the green belt and the garbage outside the road surface, the air inlet three-way valve 11 of the bottom suction device can be closed, that is, the valve plate 112 is used to cut off the airflow channel from the inlet to the outlet of the three-way pipe body 111, the side suction pipe 12 is taken down from the bottom suction device 6, the rigid pipe body 121 is operated by hand to suck the floor garbage, and the filtered air is discharged through the exhaust port of the three-way pipe body 111. The flexible hose 13 for connecting the side suction pipe 12 and the trash filter box 3 is a plastic spiral pipe having a desired rigidity, and at the same time, having a desired flexibility and flexibility. As shown in fig. 2, a net type pipe bracket may be additionally installed at a lower portion of the bellows 13, and a rear end of the pipe bracket is hinged to the vehicle body so as to be rotatable about a hinge axis, thereby improving the working efficiency of the bellows 13.

Referring to fig. 1 and 2, the self-suction garbage cleaning vehicle with the air circulation working mode is provided with a driver's rainproof ceiling, a roof rack, a warning lamp and the like, belongs to the prior art, and is not described herein any more.