Suction nozzle assembly of sanitation vehicle and sanitation vehicle

Abstract

The suction nozzle assembly comprises a front suction nozzle installed in front of a vehicle body, the front suction nozzle comprises a suction nozzle frame with a suction and picking cavity, a front rolling brush, a middle sweeping disc and a water suction brush, the front rolling brush, the middle sweeping disc and the water suction brush are arranged in the suction and picking cavity, and the suction and picking cavity is communicated with a garbage pipeline through a suction and picking opening formed in the suction nozzle frame. The front rolling brush rolls to push light garbage to the suction and picking opening, the middle sweeping disc rotates and sprays water mist to sweep away powerful sticky garbage on the ground, and the water absorption brush is in rolling contact with the ground to absorb residual water stains on the ground. According to the suction nozzle assembly and the sanitation truck, the front rolling brush, the middle sweeping disc and the water suction brush are integrated in the suction nozzle frame to achieve the suction nozzle integrating light garbage, strong garbage adhesion and water suction treatment, secondary pollution is avoided, the sweeping effect is improved, it is ensured that various types of garbage on a road surface is cleaned, and the sanitation truck is convenient to use. The garbage cleaning cannot be influenced by the external airflow speed, and the working efficiency of environmental sanitation equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sanitation vehicles, and in particular to a sanitation vehicle suction nozzle assembly and a sanitation vehicle. Background Art

[0002] The sanitation cleaning vehicle is a small sanitation equipment suitable for narrow roads such as auxiliary roads, sidewalks, and back streets and alleys. It is mainly used to clean leaves, stones, etc. on the road surface. The sanitation cleaning vehicle can effectively clean leaves and stones on the road surface by sucking garbage with a suction nozzle and sweeping the sweeping disc outside the suction nozzle. However, this type of suction nozzle plus sweeping disc structure has poor cleaning effect on roads with large amounts of garbage and heavy oil pollution. As the operating speed increases, the sweeping disc outside the suction nozzle is easily affected by the fast airflow and cannot effectively clean the garbage. At the same time, the vehicle speed is too fast, which will cause the sweeping disc to drag on the ground and cannot be effectively cleaned. In addition, after cleaning, the ground is prone to residual moisture and obvious traces of the sweeping disc brushing the ground are left, forming secondary pollution. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a sanitation vehicle suction nozzle assembly and a sanitation vehicle which have good cleaning effect and can avoid secondary pollution.

[0004] The technical solution of the present invention is implemented as follows: a suction nozzle assembly for a sanitation vehicle, characterized in that it includes a front suction nozzle installed in front of a vehicle body, the front suction nozzle includes a suction nozzle frame having a suction chamber, and a front roller brush, a middle sweeping disc and a water absorption brush sequentially arranged in the suction chamber along the forward direction of the vehicle body, the suction chamber is connected to a garbage suction pipe through a suction port opened in the suction nozzle frame, the front roller brush rolls to move light garbage to the suction port, the middle sweeping disc rotates and sprays water mist to sweep away strong sticky garbage on the ground, and the water absorption brush rolls in contact with the ground to absorb residual water stains on the ground.

[0005] Preferably, both ends of the water absorption brush are fixed on the suction nozzle frame, and the water absorption brush comprises a sleeve, bristles, a water absorption array tube and a heating element, and the heating element, the water absorption array tube and the bristles are arranged in sequence on the outer periphery of the sleeve from the inside to the outside, and a plurality of the water absorption array tubes are distributed along the axial direction of the sleeve and are arranged in a circular array with the center of the sleeve as the center of the circle.

[0006] Preferably, each of the water absorption array tubes comprises two layers of water absorption tubes, inner and outer layers, and the interior of the water absorption tube is hollow; wherein: the water absorption tube is made of super absorbent polymer.

[0007] Preferably, the middle sweeping disc comprises a sweeping disc and a spray pipe, and the spray pipe is sandwiched between the sweeping hairs of the sweeping disc.

[0008] Preferably, the front roller brush, the middle sweeping disc and the water absorbent brush are driven to rotate synchronously by a sweeping brush transmission mechanism, and the sweeping brush transmission mechanism includes a driving motor, a pulley, a belt, an active bevel gear and a driven bevel gear. The pulleys are installed on the front roller brush and the water absorbent brush, and the belt is wound around the pulley and the pulley at the output end of the driving motor. The driving motor synchronously drives each of the pulleys to rotate through the belt and then synchronously drives the front roller brush and the water absorbent brush to roll. The driven bevel gear is transmission-connected to the middle sweeping disc, and the active bevel gear is installed on the driving motor. When the driving motor rotates, the active bevel gear drives the driven bevel gear to rotate and then synchronously drives the middle sweeping disc to rotate.

[0009] Preferably, the middle sweep discs are arranged in multiple numbers side by side, and a middle sweep transmission gear is also sleeved on the mounting shaft of each middle sweep disc. An intermediate transmission gear connected to the middle sweep transmission gears is arranged between the middle sweep transmission gears. When the driven bevel gear rotates to drive one of the middle sweep transmission gears to rotate, it simultaneously drives another middle sweep transmission gear to rotate, thereby driving the other middle sweep disc to rotate.

[0010] Preferably, a nozzle position adjustment mechanism is also installed on the nozzle frame, and the nozzle position adjustment mechanism includes a top cover fixed on the nozzle frame, and a control motor, a driving wheel, a driven wheel, a pad, a mounting seat, a fixed seat, a transmission rod, a connecting rod and a slide slot installed on the top cover, the control motor drives the driving wheel connected to it to rotate, the driving wheel meshes with the driven wheel for transmission, the pad is fixedly installed above the driven wheel and the driving wheel, the transmission rod and the connecting rod simultaneously pass through the fixing seat and are fixed on the mounting seat, the fixing seat is fixedly connected to the slide slot, the driven wheel is provided with a raised column extending through the pad toward the slide slot, the raised column is stuck in the slide slot, and when the driven wheel rotates forwards and backwards, the raised column rotates according to the trajectory of the driven wheel and pushes the slide slot and the fixed seat to move left and right, thereby causing the nozzle frame to move left and right.

[0011] Preferably, there are multiple front suction nozzles, and the multiple front suction nozzles are arranged side by side.

[0012] Preferably, it also includes a rear suction nozzle, which is fixed on the vehicle body and installed integrally with the front suction nozzle, and the front suction nozzle is arranged in front of the rear suction nozzle along the moving direction of the vehicle body, and the rear suction nozzle is used to blow dry the ground cleaned by the front suction nozzle; The rear suction nozzle includes a cover body, a rear suction nozzle drive motor, a fan, a rear suction nozzle transmission belt and a storage tank. The rear suction nozzle drive motor drives the fan to rotate through the rear suction nozzle transmission belt. The fan is arranged in the cover body. The storage tank is fixed on the cover body and is connected to the internal space of the cover body.

[0013] The present invention also provides a sanitation vehicle, comprising the above-mentioned sanitation vehicle suction nozzle assembly, and also comprising a vehicle body, wherein the sanitation vehicle suction nozzle assembly is mounted on the vehicle body.

[0014] The sanitation vehicle suction nozzle assembly and the sanitation vehicle provided by the present invention integrate the front roller brush, the middle sweeping disc and the water absorption brush in the suction nozzle frame to simultaneously realize the functions of rolling and sweeping light garbage, strongly removing sticky garbage and absorbing water. The front roller brush rolls the light garbage to the suction port so that the suction tube can suck the garbage. The middle sweeping disc rotates to strongly wash stubborn garbage such as mud and oil. The water absorption brush absorbs and picks up residual water, effectively improving the cleaning effect, ensuring the cleaning of various types of garbage on the road surface, and avoiding secondary pollution after garbage treatment. Moreover, since the roller brush and the sweeping brush are fully integrated in the suction nozzle frame, the garbage cleaning will not be affected by the external air flow speed, so that the sanitation vehicle can operate at high speed, which greatly improves the cleaning efficiency. Therefore, the work efficiency of the sanitation equipment during operation is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the suction nozzle assembly provided by the present invention.

[0016] Figure 2 for Figure 1 A schematic structural diagram of the front suction nozzle of the suction nozzle assembly is shown.

[0017] Figure 3 for Figure 1 A partial structural schematic diagram of the front suction nozzle of the suction nozzle assembly is shown.

[0018] Figure 4 for Figure 1 A schematic diagram of the partial structure of the front nozzle of the nozzle assembly at another angle is shown.

[0019] Figure 5 for Figure 3 Schematic diagram of the structure of the water-absorbing brush shown in FIG.

[0020] Figure 6 for Figure 5 A cross-sectional view of a water-absorbing brush is shown.

[0021] Figure 7 for Figure 1 A partial structural schematic diagram of the rear suction nozzle is shown.

[0022] In the figure: nozzle frame 1, front roller brush 2, middle sweeping disc 3, water absorption brush 4, sweeping brush transmission mechanism 5, nozzle position adjustment mechanism 7, rear suction nozzle 9, front suction nozzle 10, suction and picking chamber 11, suction and picking port 12, garbage suction pipe 14, front walking mechanism 15, rear walking mechanism 16, sweeping disc 31, spray pipe 33, middle sweeping transmission gear 35, intermediate transmission gear 37, bushing 41, bristles 43, water absorption array tube 44, heating element 45, driving motor 51, pulley 53, belt 55, active bevel gear 57, driven bevel gear 59, top cover 71, control motor 72, active wheel 73, driven wheel 74, pad 75, mounting seat 76, fixing seat 77, transmission rod 78, connecting rod 79, slide groove 80, protruding column 81, cover body 91, rear suction nozzle driving motor 93, fan 95, rear suction nozzle transmission belt 97, electromagnet 98, storage tank 99. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Please refer to Figures 1 to 3, which is a schematic diagram of the structure of the suction nozzle assembly provided by the present invention. The suction nozzle assembly includes a front suction nozzle 10 arranged in front of the vehicle body. The front suction nozzle 10 includes a suction nozzle frame 1 with a suction chamber 11, and a front roller brush 2, a middle sweeping disc 3 and a water absorption brush 4 arranged in the suction chamber 11 in sequence along the forward direction of the vehicle body. The suction chamber 11 is connected to a garbage suction pipe 14 through a suction port 12 opened in the suction nozzle frame 1. The front roller brush 2 is arranged at the front of the vehicle body, and rolls in the forward direction of the vehicle body to push light garbage to the suction port 12. The vehicle body exhaust fan is connected to the suction port 12 through the suction pipe 14 to draw the garbage entering the suction chamber 11 into the garbage bin. The middle sweeping disc 3 rotates at high speed while spraying water mist to sweep away the strong sticky garbage on the ground. The water absorption brush 4 rolls in contact with the ground to absorb the residual water stains on the ground. The front roller brush 2, the middle sweeping disc 3 and the water absorption brush 4 are integrated in the suction nozzle frame 1 to realize a suction nozzle that can simultaneously handle light garbage, strong sticky garbage and water absorption. The front roller brush 2 rolls the light garbage to the suction port 12 for preliminary treatment of the garbage. The middle sweeping disc 3 strongly scrubs stubborn garbage such as mud and oil. The water absorption brush 4 cleans residual moisture and sweeping marks, thereby avoiding secondary pollution, effectively improving the cleaning effect, and ensuring the cleaning of various types of garbage on the road surface. Moreover, since the roller brush and the sweeping brush are fully integrated in the suction nozzle frame 1, the garbage cleaning will not be affected by the external air flow speed, which greatly improves the cleaning effect and improves the suction nozzle to maintain a good working effect when the sanitation equipment is operating quickly. It needs to be explained that in the prior art, the suction nozzle is located in front of the vehicle body, and the two sweeping discs are located on both sides of the suction nozzle, forming a combined operation of the suction nozzle and the sweeping disc. This results in that when the sweeping disc rotates to sweep the garbage, the airflow generated by the vehicle's moving speed will carry the garbage away, and the suction force of the suction nozzle cannot clean up the carried away garbage. Under the influence of the rapid airflow of the vehicle body, the garbage cleaning effect is poor. In order to improve the cleaning effect, the general vehicle speed needs to be reduced to a very low level. The slow cleaning speed and low work efficiency. The suction nozzle of the present invention concentrates the sweeping brush and the brush disc in the suction nozzle frame 1, and the suction port is also located in the suction nozzle frame 1. The garbage is also close to the suction port 12 and is easily sucked into the suction tube 14. The airflow generated by the rapid movement of the vehicle body will not affect the suction force of the suction nozzle. Because the front roller brush 2 and the middle sweeping disc 3 are both integrated in the suction nozzle frame 1, the forward speed of the vehicle body is increased to ensure work efficiency while also improving the cleaning effect.

[0025] Please refer to Figure 3 , Figure 5 and Figure 6Furthermore, both ends of the water-absorbing brush 4 are fixedly mounted on the nozzle frame 1. The water-absorbing brush 4 comprises a sleeve 41, bristles 43, a water-absorbing array tube 44 and a heating element 45. The heating element 45, the water-absorbing array tube 44 and the bristles 43 are sequentially arranged on the outer periphery of the sleeve 41 from the inside to the outside, and a plurality of the water-absorbing array tubes 44 are distributed along the axial direction of the sleeve 41 and are arranged in a circular array with the center of the sleeve 41 as the center.

[0026] In detail, the water absorption array tubes 44 are adhered to each other to form a water absorption ring to increase the amount of water absorption. Each of the water absorption array tubes 44 includes two layers of water absorption tubes, one inside and one outside, and the inside of the water absorption tube is hollow. The multi-layer water absorption tubes are used to store a large amount of water stains. Among them, the water absorption tube is made of super absorbent polymer, which is a unique polymer composed of vinyl alcohol and acrylic acid copolymer. Its molecular chain contains a large number of hydrophilic groups, which can form hydrogen bonds with water molecules, thereby absorbing and fixing a large amount of water. Therefore, the water absorption tube expands rapidly and locks the water after contacting the water, so as to clean the stains and water stains remaining on the ground. Since part of the water mist sprayed out by the spray tube will remain on the ground, the water absorption brush 4 is in contact with the ground, and the water absorption brush is used to absorb the remaining water stains, which effectively avoids secondary pollution.

[0027] The bristles 43 are made of soft water-absorbing material. The bristles 43 absorb a small amount of water stains when in contact with the ground. The outer layer of bristles has a large contact area with the ground, which can effectively remove the cleaning marks of the front roller brush, while large amounts of water stains are absorbed by the water absorption tube.

[0028] From this, we can know that through the dual functions of the bristles 43 and the water absorption array tube 44, large and small stains on the ground can be effectively sucked up, avoiding secondary pollution, thereby effectively improving the effect of the suction nozzle in cleaning the ground.

[0029] Among them, the heating element 45 is an electric heating wire, which is installed inside the water-absorbing brush 4 and wound around the outer periphery of the sleeve. When powered by an external power supply, the electric heating wire can heat the rolling brush to a certain temperature to help dissolve stubborn stains and dry the moisture on the water-absorbing array tube, so that the water-absorbing array tube can repeatedly absorb water without manual squeezing and other operations. Moreover, on the premise that materials such as the water-absorbing array tube and the bristles can withstand high temperatures without melting, the cleaning surface can also be disinfected at high temperatures.

[0030] See also Figure 4In order to reduce the amount of dust caused by the high-speed rotating brush, the middle sweeping disc 3 sprays water mist to take away dust particles to reduce the pollution to the environment during the cleaning process. Furthermore, the middle sweeping disc 3 includes a sweeping disc 31 and a spray pipe 33. The spray pipe 33 is multiple and is arranged to diverge in all directions with the center of the sweeping disc as the center of the circle. It is clamped between the sweeping hairs of the sweeping disc 31. During the rotation of the sweeping disc 31, the spray pipe 33 continuously sprays water mist to reduce the amount of dust. For heavily oily roads, hot water can also be sprayed out of the spray pipe 33, combined with a detergent, to wash the road surface and improve the cleaning effect. Specifically, in this embodiment, the middle sweeping disc 3 is multiple and arranged side by side. Preferably, the middle sweeping disc 3 is two and arranged side by side. Under some specific operating requirements, the two middle sweeping discs 3 can also rotate in the same direction or in the opposite direction inside the suction nozzle.

[0031] The bristles of the front roller brush 2 are relatively sparse and long, and they sweep the light garbage into the suction chamber 11 during the rolling process to clean up the light garbage. The bristles on the sweeping disc 31 are hard bristles, which scrape off the garbage on the ground that has strong adhesion and is difficult to clean during the rotation. Therefore, with the cooperation of the front roller brush 2 and the middle sweeping disc 3, all the garbage on the ground can be cleaned up. It should be noted that the bristles on the sweeping disc 31 can be configured with different materials according to needs. For roads with mainly mud and garbage, bristles with steel wire materials can be selected. For roads with mainly oil pollution, wear-resistant engineering plastics and other materials can be selected.

[0032] See also Figure 3In another embodiment, the front roller brush 2, the middle sweeping disc 3 and the water absorbing brush 4 are driven to rotate synchronously through a sweeping brush transmission mechanism 5. The sweeping brush transmission mechanism 5 includes a driving motor 51, a pulley 53, a belt 55, a driving bevel gear 57 and a driven bevel gear 59. The front roller brush 2 and the water absorbing brush 4 are both equipped with the pulley 53. The belt 55 is wound around the pulley 53 and the pulley at the output end of the driving motor 51. The driving motor 51 drives the pulleys 53 to rotate synchronously through the belt 55, and then drives the front roller brush 2 and the water absorbing brush 4 to roll simultaneously. The driven bevel gear 59 is connected to the middle sweeping disc 3 by transmission. The driving bevel gear 57 is installed on the driving motor 51. When the driving motor 51 rotates, the driving bevel gear 57 drives the driven bevel gear 59 to rotate and then drives the middle sweeping disc 3 to rotate synchronously. Specifically, the driving motor 51 is a dual-axis driving motor. Bevel gears and pulleys are installed on the two shafts at both ends of the dual-axis drive motor, respectively. The bevel gear on the motor is the driven bevel gear 59. When the motor is driven to rotate, the active bevel gear 57 on the motor meshes with the driven bevel gear 59 for transmission, and the pulley 53 is driven to rotate through the belt 55, thereby synchronously driving the front roller brush 2, the middle sweeping disc 3 and the water-absorbing brush 4 to move, realizing efficient and low-cost transmission. The suction nozzle and sweeping disc structure of conventional sanitation equipment mostly adopts a structural design of one motor driving one sweeping disc or roller brush, and at least 4 motors are required to drive such a set of mechanisms. However, this application only uses one dual-axis motor in conjunction with belt drive and gear drive to realize the rotation of 4 mechanisms, which simplifies the structure and reduces the cost, greatly improving the cost performance and competitiveness of the product.

[0033] In another preferred embodiment, the middle sweeping discs 3 are arranged in parallel in a plurality, and the mounting shaft of each middle sweeping disc 3 is also sleeved with a middle sweeping transmission gear 35, and an intermediate transmission gear 37 is arranged between each middle sweeping transmission gear 35, and the driven bevel gear 59 rotates to drive one of the middle sweeping transmission gears to rotate, and then drives another middle sweeping transmission gear 35 to rotate, thereby driving another middle sweeping disc 3 to rotate. Therefore, driven by the dual-axis driving motor 51, multiple middle sweeping discs 3 can also be synchronously moved, so that one motor can achieve the purpose of synchronously driving the front roller brush 2, multiple middle sweeping discs 3 and water absorption brush 4 to move synchronously, which greatly simplifies the structure and reduces the cost.

[0034] Please refer to Figure 2 and Figure 4In one embodiment, a nozzle position adjustment mechanism 7 is further installed on the nozzle frame 1, and the nozzle position adjustment mechanism 7 includes a top cover 71 fixed on the nozzle frame 1, and a control motor 72, a driving wheel 73, a driven wheel 74, a pad 75, a mounting seat 76, a fixing seat 77, a transmission rod 78, a connecting rod 79 and a slide groove 80 installed on the top cover 71. The control motor 72 drives the driving wheel 73 connected to it to rotate, and the driving wheel 73 is meshed with the driven wheel 74 for transmission. The pad 75 is fixedly installed on the driven wheel 74 and the Above the driving wheel 73, the transmission rod 78 and the connecting rod 79 simultaneously pass through the fixed seat 77 and are fixed on the mounting seat 76. The fixed seat 77 is fixedly connected to the slide groove 80. The driven wheel 74 is provided with a raised column 81 that passes through the pad 75 and extends toward the slide groove 80. The raised column 81 is inserted into the slide groove 80. When the driven wheel 74 rotates forward and reverse, the raised column rotates according to the trajectory of the driven wheel 74 and pushes the slide groove 80 and the fixed seat 77 to move left and right, thereby causing the nozzle frame 1 to move left and right. Specifically, the driving wheel 73 and the driven wheel 74 are both gears, the driving wheel 73 is a driving gear, and the driven wheel 74 is a driven gear. When the left and right distance of the suction nozzle needs to be adjusted, the moving knob is pressed on the operating screen during driving, the motor starts to rotate, and the driving gear drives the driven gear to rotate. Since the raised column 81 on the driven gear is stuck in the slide groove 80 of the fixed seat 77, when the driven gear rotates, the raised column 81 realizes linear movement in the slide groove 80 and drives the fixed seat 77 to move left and right. Since the fixed seat 77 and the slide groove 80 are integrated and fixed together on the top cover 71, when the fixed seat 77 moves left and right, the suction nozzle frame 1 moves left and right accordingly.

[0035] It is understandable that, since urban garbage is easily accumulated on the edge of the road which is difficult to clean, the use of manually driven sanitation vehicles for cleaning along the edge requires the driver to master good driving skills, which brings high time and labor costs. However, the nozzle position adjustment mechanism 7 set in this application can adjust the nozzle frame 1 to move left and right, and then adjust the cleaning direction of the nozzle to achieve the purpose of cleaning along the edge. Conventional sanitation equipment, when the nozzle is operating, is equipped with a connecting rod on the chassis or frame, and the other end of the connecting rod is fixed to the nozzle mounting seat. The nozzle is driven by hydraulic or electric control to achieve the up and down, front and back movement, and the nozzle cannot be moved left and right. When it is necessary to work by the side, the vehicle can only be moved to work along the edge. The operation is complicated and the safety risk is high. If the intelligent edge system is added, it is necessary to install additional cameras, 3D cameras, laser radars, intelligent control systems, etc., which makes the cost of the entire system too high.

[0036] Specifically, there are multiple front suction nozzles 10, and the multiple front suction nozzles 10 are arranged side by side. Preferably, there are two front suction nozzles 10 arranged side by side. It can be understood that the number of the front suction nozzles 10 can be set according to the width of the vehicle body. If the vehicle body is wide, the number of front suction nozzles 10 can be increased accordingly. For lightweight small sanitation equipment, only one front suction nozzle can be set. Therefore, the front suction nozzle can be installed on different sanitation equipment as a unit module, and its applicability is high.

[0037] See also Figure 1 and Figure 3 In addition, it is worth mentioning that, along the direction of travel of the vehicle body, a front walking mechanism 15 and a rear walking mechanism 16 are installed on the front and rear sides of the nozzle frame 1. The front walking mechanism 15 and the rear walking mechanism 16 have the same structure. Rollers are installed on the front walking mechanism and the rear walking mechanism. During the driving process of the vehicle, the rollers roll on the ground to support the entire nozzle assembly on the ground.

[0038] Furthermore, in another preferred embodiment, the suction nozzle assembly further includes a rear suction nozzle 9. The rear suction nozzle 9 is fixed to the vehicle body and is installed integrally with the front suction nozzle 10. Along the direction of the vehicle body moving forward, the front suction nozzle 10 is arranged in front of the rear suction nozzle 9, and the rear suction nozzle 9 is used to dry the ground cleaned by the front suction nozzle 10.

[0039] See also Figure 1 and Figure 7 The rear suction nozzle 9 includes a cover 91, a rear suction nozzle drive motor 93, a fan 95, a rear suction nozzle transmission belt 97 and a storage tank 99. The rear suction nozzle drive motor 93 drives the fan 95 to rotate through the rear suction nozzle transmission belt 97. The fan 95 is arranged in the cover 91. The storage tank 99 is fixed on the cover 91 and communicates with the inner space of the cover 91. After the front suction nozzle 10 cleans the road garbage and sewage, when the sanitation vehicle operates at a high speed, some sewage sometimes has no time to be absorbed by the water-absorbing brush 4. In order to make the road clean more clean, the rear suction nozzle 9 drives the two fans 95 in the cover 91 to rotate under the action of the rear suction nozzle drive motor 93. The fan 95 rotates at a high speed to generate strong wind force to dry the road surface, ensuring that the road surface after the operation meets the environmental protection requirements, especially for some cities that require that the road surface be cleaned by grams. Under the combined operation of the front and rear suction nozzles, the road surface will be cleaned spotlessly. When the road surface to be cleaned is an oily road surface, some garbage will be left behind during cleaning, which will affect the environment. Some road desiccant and cleaning agent are stored in the storage tank 99. With the rotation of the fan 95, the road surface can be further dried and deodorized. Furthermore, when there is ice or snow on the road surface, the tank can store snow removal agent to melt the road surface.

[0040] In addition, an electromagnet 98 is installed at the rear end of the rear suction nozzle 9, which can absorb some metal objects such as iron blocks and screws on the road surface, thereby improving the suction nozzle's ability to absorb various garbage.

[0041] The present invention also provides a sanitation vehicle, which includes the above-mentioned suction nozzle assembly, wherein the suction nozzle assembly is installed on the body of the sanitation vehicle and is located in front of the body. When the body moves forward, the suction nozzle is used to clean up garbage on the ground while moving.

[0042] The suction nozzle assembly and the sanitation vehicle provided by the embodiment of the present invention integrate the front roller brush 2, the middle sweeping disc 3 and the water absorption brush 4 in the suction nozzle frame 1 to simultaneously realize the suction nozzle with the functions of rolling and sweeping light garbage, forcefully removing sticky garbage and absorbing water. The front roller brush 2 rolls the light garbage to the suction port so that the garbage can be sucked by the suction tube. The middle sweeping disc 3 rotates to forcefully wash stubborn garbage such as mud and oil. The water absorption brush 4 absorbs and picks up residual water, which effectively improves the cleaning effect, ensures the cleaning of various types of garbage on the road surface, and avoids secondary pollution after garbage treatment. Moreover, since the roller brush and the sweeping brush are fully integrated in the suction nozzle frame 1, the garbage cleaning will not be affected by the external air flow speed, so that the sanitation vehicle can operate at high speed, which greatly improves the cleaning efficiency. Therefore, the work efficiency of the sanitation equipment during operation is greatly improved.

[0043] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the present invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A sanitation vehicle nozzle assembly, characterized in that: The invention comprises a front suction nozzle (10) installed in front of a vehicle body, the front suction nozzle (10) comprising a suction nozzle frame (1) having a suction chamber (11), and a front rolling brush (2), a middle sweeping disc (3) and a water absorbing brush (4) arranged in sequence in the suction chamber (11) along the forward direction of the vehicle body, the suction chamber (11) being connected to a garbage suction pipe (14) via a suction opening (12) provided in the suction nozzle frame (1), the front rolling brush (2) rolling to move light garbage to the suction opening (12), the middle sweeping disc (3) rotating while spraying water mist for sweeping away strongly sticky garbage on the ground, and the water absorbing brush (4) rolling in contact with the ground for absorbing residual water stains on the ground.

2. The sanitation vehicle nozzle assembly according to claim 1, characterized in that: Both ends of the water-absorbing brush (4) are fixed on the suction nozzle frame (1); the water-absorbing brush (4) comprises a shaft sleeve (41), bristles (43), a water-absorbing array tube (44) and a heating element (45); the heating element (45), the water-absorbing array tube (44) and the bristles (43) are arranged in sequence from the inside to the outside on the outer periphery of the shaft sleeve (41); a plurality of the water-absorbing array tubes (44) are distributed along the axial direction of the shaft sleeve (41) and are arranged in a circular array with the center of the shaft sleeve (41) as the center of the circle.

3. The sanitation vehicle nozzle assembly according to claim 2, characterized in that: Each of the water absorption array tubes (44) comprises two layers of water absorption tubes, an inner layer and an outer layer, and the interior of the water absorption tube is hollow; wherein: the water absorption tube is made of a super absorbent polymer.

4. The sanitation vehicle nozzle assembly according to claim 1, characterized in that: The middle sweeping disc (3) comprises a sweeping disc (31) and a spray pipe (33), wherein the spray pipe (33) is sandwiched between the sweeping hairs of the sweeping disc (31).

5. The sanitation vehicle nozzle assembly according to claim 1, characterized in that: The front roller brush (2), the middle sweeping disc (3) and the water absorbing brush (4) are driven to rotate synchronously by a sweeping brush transmission mechanism (5), the sweeping brush transmission mechanism (5) comprising a driving motor (51), a belt pulley (53), a belt (55), a driving bevel gear (57) and a driven bevel gear (59), the front roller brush (2) and the water absorbing brush (4) are both provided with the belt pulley (53), the belt (55) is wound around the belt pulley (53) and the belt pulley at the output end of the driving motor (51), The driving motor (51) synchronously drives the pulleys (53) to rotate through the belt (55), thereby synchronously driving the front rolling brush (2) and the water-absorbing brush (4) to roll; the driven bevel gear (59) is in transmission connection with the middle sweeping disc (3); the driving bevel gear (57) is mounted on the driving motor (51); when the driving motor (51) rotates, the driving bevel gear (57) drives the driven bevel gear (59) to rotate, thereby synchronously driving the middle sweeping disc (3) to rotate.

6. The sanitation vehicle nozzle assembly according to claim 5, characterized in that: The middle sweep discs (3) are arranged in a plurality in parallel, and a middle sweep transmission gear (35) is sleeved on the mounting shaft of each middle sweep disc (3). An intermediate transmission gear (37) is arranged between each middle sweep transmission gear (35) and is transmission-connected thereto. When the driven bevel gear (59) rotates to drive one of the middle sweep transmission gears (35), it simultaneously drives another middle sweep transmission gear (35) to rotate, thereby driving another middle sweep disc (3) to rotate.

7. The sanitation vehicle nozzle assembly according to claim 1, characterized in that: The nozzle frame (1) is also provided with a nozzle position adjustment mechanism (7), the nozzle position adjustment mechanism (7) comprising a top cover (71) fixed on the nozzle frame (1), and a control motor (72), a driving wheel (73), a driven wheel (74), a pad (75), a mounting seat (76), a fixing seat (77), a transmission rod (78), a connecting rod (79) and a slide groove (80) installed on the top cover (71), the control motor (72) drives the driving wheel (73) connected thereto to rotate, the driving wheel (73) meshes with the driven wheel (74) for transmission, and the pad (75) is fixedly mounted between the driven wheel (74) and the driving wheel. The driving rod (78) and the connecting rod (79) pass through the fixing seat (77) and are fixed on the mounting seat (76) at the same time. The fixing seat (77) is fixedly connected to the slide groove (80). The driven wheel (74) is provided with a protruding column (81) which passes through the pad (75) and extends toward the slide groove (80). The protruding column (81) is inserted into the slide groove (80). When the driven wheel (74) rotates forward and reverse, the protruding column (81) rotates according to the trajectory of the driven wheel (74) and pushes the slide groove (80) and the fixing seat (77) to move left and right, thereby causing the nozzle frame (1) to move left and right.

8. The sanitation vehicle nozzle assembly according to claim 1, characterized in that: There are a plurality of front suction nozzles (10), and the plurality of front suction nozzles (10) are arranged side by side.

9. The sanitation vehicle nozzle assembly according to claim 1, characterized in that: It also comprises a rear suction nozzle (9), the rear suction nozzle (9) being fixed on the vehicle body and installed integrally with the front suction nozzle (10), the front suction nozzle (10) being arranged in front of the rear suction nozzle (9) along the moving direction of the vehicle body, the rear suction nozzle (9) being used to blow dry the ground cleaned by the front suction nozzle (10); The rear suction nozzle (9) comprises a cover body (91), a rear suction nozzle drive motor (93), a fan (95), a rear suction nozzle transmission belt (97) and a storage tank (99); the rear suction nozzle drive motor (93) drives the fan (95) to rotate via the rear suction nozzle transmission belt (97); the fan (95) is arranged in the cover body (91); and the storage tank (99) is fixed on the cover body (91) and is in communication with the internal space of the cover body (91).

10. A sanitation vehicle, characterized in that: It comprises the sanitation vehicle suction nozzle assembly as described in any one of claims 1 to 9, and also comprises a vehicle body, and the sanitation vehicle suction nozzle assembly is installed on the vehicle body.

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