Sucker structure and cleaning and sweeping vehicle

Abstract

The utility model belongs to the technical field of road cleaning equipment, and particularly relates to a suction cup structure and a cleaning and sweeping vehicle. A suction cup structure comprises a suction cup, the suction cup comprises a suction cup body generating negative pressure, and the direction, pointing to the front portion of the suction cup body, of the rear portion of the suction cup body is the same as the working direction of the suction cup body; the suction cup further comprises a plurality of front rubber sheets, a rear rubber plate and a dirt suction opening, the front rubber sheets are arranged on the front portion of the lower surface of the suction cup body, the dirt suction opening is formed in the middle of the lower surface of the suction cup body, and the rear rubber plate is fixedly arranged on the portion, behind the dirt suction opening, of the lower surface of the suction cup body. The limitation of the suction cup on the size of garbage during working can be reduced, garbage in the working space of the suction cup is prevented from escaping, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of road cleaning equipment, and in particular relates to a suction cup structure and a washing and sweeping vehicle. Background Art

[0002] The emergence of cleaning and sweeping vehicles not only greatly reduces the labor intensity of sanitation workers, but also improves cleaning efficiency.

[0003] The washing and sweeping vehicle uses the sweeping disc set on the side of the bottom of the vehicle body to sweep the garbage on the road into the suction cup working space located in the middle part of the bottom of the vehicle body. The suction cup sucks up the garbage at the bottom of the washing and sweeping vehicle and sends it into the garbage bin inside the washing and sweeping vehicle, or sprays high-pressure water on the ground through the water spraying device located in front of and / or behind the suction cup to wash the ground.

[0004] When the suction cup of the existing cleaning and sweeping vehicle is too close to the ground, the suction force will be stronger, but the suction cup can only suck up small garbage, and large garbage cannot enter the working space between the suction cup and the ground. When the suction cup is far from the ground, although the size limit of the garbage is reduced, the suction force of the suction cup is also weakened, which will cause more garbage to enter the working space between the suction cup and the ground, but it cannot be sucked up by the suction cup in time, which causes the garbage to be left and scattered; and as the water spraying device located behind the suction cup sprays high-pressure water on the ground behind the suction cup, the splashing water and air flow will cause some of the garbage in the working space between the suction cup and the ground to escape, resulting in low cleaning efficiency and poor cleaning effect. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and provide a suction cup structure that can reduce the restriction of the suction cup on the size of garbage during work and prevent the garbage in the working space of the suction cup from escaping, thereby improving the cleaning efficiency and enhancing the cleaning effect.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A suction cup structure includes a suction cup, which includes a suction cup body that generates negative pressure, and is characterized in that: the direction in which the rear part of the suction cup body points to the front part of the suction cup body is the same as the working direction of the suction cup body; the suction cup also includes a front film, a rear rubber plate, and a sewage suction port, a plurality of the front films are set at the front part of the lower surface of the suction cup body, the sewage suction port is set in the middle part of the lower surface of the suction cup body, and the rear rubber plate is fixedly set on the lower surface of the suction cup body behind the sewage suction port.

[0008] Preferably, the upper end of the front film is connected to the lower surface of the suction cup body through a hinge, a telescopic rod is arranged between the rear surface of each front film and the lower surface of the suction cup body, and the angle θ between the front film and the working direction of the suction cup body is an obtuse angle.

[0009] Preferably, the sewage suction port includes an upper sewage suction port channel and an extension of the sewage suction port, the upper sewage suction port channel passes through the interior of the suction cup body to the lower surface of the suction cup body, the sewage suction port extension is arranged at a position corresponding to the lower surface of the suction cup body and the upper sewage suction port channel, the sewage suction port extension includes a sewage suction cylinder, the upper port diameter of the sewage suction cylinder in contact with the lower surface of the suction cup body is greater than or equal to the diameter of the upper sewage suction port channel, and the lower end of the sewage suction cylinder does not contact the working surface.

[0010] Preferably, the sewage suction port extension also includes a sewage suction port rubber, which is fixedly arranged around the lower end of the sewage suction cylinder and extends to the working surface. The sewage suction port rubber has a plurality of vertical incisions.

[0011] Preferably, the rear rubber plate is fixedly arranged in a wave shape behind the extension of the sewage suction port on the lower surface of the suction cup body, the extension of the sewage suction port is located at the trough of the rear rubber plate away from the front film, and the lower end of the rear rubber plate does not contact the working surface.

[0012] Preferably, the suction cup also includes side baffles vertically arranged on both sides of the suction cup body, the two ends of the rear rubber plate are in contact with the inner surfaces of each of the side baffles, and the front films on both sides of the front part of the suction cup body are also in contact with the inner surfaces of each of the side baffles.

[0013] Preferably, it also includes a water spraying device and an adjusting device, wherein the adjusting device is used to adjust the distance and / or angle between the suction cup and the working surface, and the adjusting device is fixedly arranged on the upper surface of the suction cup body; the water spraying device is used to spray water onto the working surface, and the water spraying device is arranged on the upper surface of the suction cup body.

[0014] Preferably, the adjusting device includes a fixed bracket, a connecting arm, an adjusting rod, and a joint bearing. The lower end of the fixed bracket is movably connected to the connecting arm and one end of the adjusting rod through two joint bearings, and the other ends of the adjusting rod and the connecting arm are movably connected to the upper surface of the suction cup body through the joint bearings, that is, the fixed bracket, connecting arm, adjusting rod, and suction cup constitute a four-bar linkage mechanism.

[0015] Preferably, the water spraying device includes a side spray rod, a rotating bracket, a mounting bracket, a tension spring, an adjusting bolt and a side spray cylinder, the side spray rod is arranged behind the upper surface of the suction cup body, the tail of the side spray rod is hinged to the rotating bracket, the rotating bracket is fixed to the upper surface of the suction cup body by the adjusting bolt, the mounting bracket is slidably mounted on the rod body of the side spray rod, and the mounting bracket is fixedly connected to one end of the side spray cylinder, and the other end of the side spray cylinder is fixed to the upper surface of the suction cup body, the rotating bracket and the mounting bracket are connected by the tension spring, and the extension and retraction of the side spray cylinder drives the mounting bracket to slide along the length direction of the side spray rod.

[0016] The utility model also provides a washing and sweeping vehicle, which adopts a suction cup structure as described above, and the upper end of the fixed bracket is fixed to the bottom of the vehicle body.

[0017] The beneficial effects of the utility model are:

[0018] (1) Compared with the prior art, in which a fixed distance is maintained between the suction cup and the working surface to limit the size of garbage, the suction cup structure of the present invention can reduce the limitation of the suction cup on the size of garbage during work. Garbage of various sizes can be smoothly introduced into the working space of the suction cup by pushing the front film toward the rear of the suction cup body. The probability of garbage in the working space of the suction cup escaping is greatly reduced, thereby improving the cleaning efficiency and the cleaning effect.

[0019] (2) In the prior art, when the distance between the suction cup and the working surface is set too large, although the size limit of the garbage is reduced, garbage of various sizes can enter the working space below the suction cup, but once the garbage in the working space is pushed by the splashing water flow, the distance between the suction cup and the working surface is too large, resulting in insufficient suction, causing the garbage in the working space to escape from the front of the suction cup. However, the setting of the front film in the utility model makes it easy for the garbage in front of the suction cup body to enter the working space of the suction cup, and the garbage in the working space of the suction cup can hardly escape from the front of the suction cup body.

[0020] (3) In the utility model, a front film is connected to a telescopic rod, and the front films do not affect each other. Therefore, when a part of the front films allows garbage to enter the working space of the suction cup, the other part of the front films can prevent the garbage in the working space of the suction cup from escaping.

[0021] (4) The extension of the sewage suction port of the utility model is used to extend the upper channel of the sewage suction port, thereby enhancing the suction force of the sewage suction port on the garbage on the working surface. When the extension of the sewage suction port is composed of a sewage suction cylinder and a sewage suction port rubber, the sewage suction port rubber not only extends the upper channel of the sewage suction port to the working surface, further enhancing the suction force of the sewage suction port, but also, when the volume of garbage is large, because a number of vertical cuts are provided on the sewage suction port rubber, the sewage suction port rubber can be turned inside out into the sewage suction cylinder during the process of the garbage being sucked into the sewage suction port, so that the garbage can be smoothly sucked into the sewage suction port.

[0022] (5) The rear rubber plate is fixedly arranged in a wave shape behind the extension of the suction port on the lower surface of the suction cup body, and the extension of the suction port is located at the trough of the rear rubber plate away from the front film. As the suction cup moves forward in the working direction, the garbage temporarily left in the working space of the suction cup will gather at the trough of the rear rubber plate away from the front film, that is, gather at the extension of the suction port, so that the suction port can suck in the garbage. The rear rubber plate also prevents the garbage in the working space of the suction cup from escaping from the rear of the suction cup body.

[0023] (6) Because the lower end of the front rubber plate in the utility model is in close contact with the working surface and relatively sealed most of the time, and the lower end of the rear rubber plate does not contact the working surface, when the water spraying device sprays water toward the working surface behind the suction cup body to wash the floor, the sewage generated by washing the floor will not scatter, but will flow into the working space of the suction cup through the gap between the rear rubber plate and the working surface with the wind volume, and will be sucked away by the sewage suction port. This is not only conducive to the quick drying of the cleaned floor, but the sewage sucked away by the sewage suction port will also be recycled and reused later, saving water resources.

[0024] (7) In the present invention, the presence of the side baffles further prevents the garbage in the suction cup working space from escaping from both sides of the lower surface of the suction cup body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a first bottom view of the suction cup of the utility model;

[0026] Figure 2 This is a second bottom view of the suction cup of the utility model;

[0027] Figure 3 This is a front view of the suction cup of the utility model;

[0028] Figure 4 This is a first left side view of the suction cup of the utility model;

[0029] Figure 5 for Figure 1 The first AA section view in;

[0030] Figure 6 This is a second left side view of the suction cup of the utility model;

[0031] Figure 7 for Figure 1 The second AA section view in;

[0032] Figure 8 It is a structural schematic diagram of the suction cup and the adjusting device of the utility model;

[0033] Fig. 9 It is a structural schematic diagram of the suction cup and the water spraying device of the utility model;

[0034] Fig.10 for Fig. 9 A magnified schematic diagram of point B in the middle.

[0035] The actual correspondence between the reference numbers and component names of the utility model is as follows:

[0036] 1. Suction cup; 11. Suction cup body; 12. Front rubber sheet; 12a. Telescopic rod; 13. Rear rubber sheet; 14. Sewage suction port; 141. Upper channel of the sewage suction port; 142. Extension of the sewage suction port; 142a. Sewage suction cylinder; 142b. Rubber of the sewage suction port; 15. Side baffle;

[0037] 2. Water spray device; 21. Side spray rod; 22. Rotating bracket; 23. Mounting bracket; 24. Tension spring; 25. Adjusting bolt; 26. Side spray cylinder;

[0038] 3. Adjustment device; 31. Fixed bracket; 32. Connecting arm; 33. Adjustment rod; 34. Joint bearing;

[0039] 4. Roller;

[0040] 5. Working surface; DETAILED DESCRIPTION

[0041] Any equivalent substitution of the technical features of the technical solution of the utility model by ordinary technicians in the field without making any creative work and the solutions derived by conventional reasoning shall fall within the protection scope of the utility model.

[0042] like Figure 7 and Figure 8 As shown, a suction cup structure of the utility model includes a suction cup 1, a water spraying device 2, and an adjusting device 3. The suction cup 1 includes a suction cup main body 11 for generating negative pressure. The adjusting device 3 is fixedly connected to the upper surface of the suction cup main body 11. The adjusting device 3 is used to adjust the distance and / or angle between the suction cup 1 and the working surface 5. The water spraying device 2 for spraying water to the working surface 5 is arranged on the upper surface of the suction cup main body 11.

[0043] Figure 1 It is a first bottom view of the suction cup 1, that is, the lower surface of the suction cup body 11 opposite to the working surface 5; Figure 2 is a second bottom view of the suction cup 1; Figure 3The front view of the suction cup 1 (for easy viewing, relatively Figure 1 In terms of Figure 3 The roller 4 is not shown. Figure 1 and Figure 2 The corresponding main views of the suction cup 1 are Figure 3 ; Figure 4 The first left view of the suction cup 1 (for ease of viewing, relatively Figure 1 In terms of Figure 4 The roller 4 is not shown; Figure 5 for Figure 1 The first AA section view in Figure 4 corresponding to; Figure 6 The second left view of the suction cup 1 (for ease of viewing, relatively Figure 1 In terms of Figure 6 The roller 4 is not shown in the figure; Figure 7 for Figure 1 The second AA section view in Figure 6 Corresponding.

[0044] like Figure 1 , Figure 3 , Figure 4 , Figure 5 As shown, the suction cup 1 also includes a front film 12, a rear rubber plate 13, a sewage suction port 14, and a side baffle 15. The direction from the rear of the suction cup body 11 to the front of the suction cup body 11 is the same as the working direction of the suction cup 1. Several front films 12 are closely adjacent and arranged in a curtain shape without contact and are arranged in the front part of the lower surface of the suction cup body 11. The sewage suction port 14 is arranged in the middle part of the lower surface of the suction cup body 11. The rear rubber plate 13 is fixedly arranged in a wave shape in the middle and rear part of the lower surface of the suction cup body 11 and behind the sewage suction port 14. The sewage suction port 14 is located at the trough of the rear rubber plate 13 away from the front film 12. The side baffles 15 are arranged on both sides of the lower surface of the suction cup body 11.

[0045] The space enclosed by the rear rubber plate 13 , the front rubber plate 12 , the working surface 5 , the lower surface of the suction cup body 11 , and the side baffles 15 is the working space of the suction cup 1 .

[0046] Specific:

[0047] The upper end of each front film 12 is connected to the lower surface of the suction cup body 11 through a hinge, and each front film 12 swings toward the front of the suction cup body 11 or the rear of the suction cup body 11; a telescopic rod 12a is arranged between the rear surface of each front film 12 and the lower surface of the suction cup body 11. Regardless of the length of the telescopic rod 12a, the angle θ between the upper end of each front film 12 and the working direction of the suction cup 1 is always an obtuse angle. When the telescopic rod 12a is at the maximum length, the lower end of each front film 12 is in close contact with the working surface 5. When the telescopic rod 12a is at the minimum length, the lower end of each front film 12 is not in contact with the working surface 5. The front film 12 is a light rubber sheet with high hardness. The friction between the sleeves of each section of the telescopic rod 12a is very small and has no locking function.

[0048] The telescopic rod 12a and the front film 12 cooperate with each other. When the garbage is located in front of the front film 12, as the suction cup 1 moves forward in the working direction, after the front surface of the front film 12 contacts the garbage, the friction between the garbage and the working surface 5 or the thrust exerted on the garbage will be converted into a thrust that pushes the front film 12 toward the direction of the rear part of the suction cup body 11. At this time, the telescopic rod 12a is shortened, the angle θ becomes larger, the front film 12 is pushed away, and after the garbage enters the working space of the suction cup 1, the telescopic rod 12a is stretched by the gravity of the front film 12, and the front film 12 falls straight down. Until the lower end of the front film 12 is in close contact with the working surface; when the garbage is located in the working space of the suction cup 1, but is pushed by the splashing water flow toward the front direction of the suction cup body 11, the garbage rolls forward and contacts the rear surface of the front film 12. Since the lower end of the front film 12 is in close contact with the working surface 5, and the length limit of the telescopic rod 12a and the hardness limit of the front film 12, the angle θ between the upper end of each front film 12 and the working direction of the suction cup 1 is always an obtuse angle, that is, the front film 12 can hardly be pushed away by the garbage toward the front direction of the suction cup body 11.

[0049] Compared with the prior art, which limits the size of garbage by keeping a fixed distance between the suction cup and the working surface, the utility model further reduces the size limit of garbage, and garbage of various sizes can be smoothly introduced into the working space of the suction cup 1 by pushing the front film 12 toward the rear of the suction cup body 11. Furthermore, when the distance between the suction cup and the working surface is set too large in the prior art, although the size limit of garbage is reduced, garbage of various sizes can enter the working space below the suction cup, but once the garbage in the working space is pushed by the splashing water flow, the distance between the suction cup and the working surface is too large, resulting in insufficient suction, causing the garbage in the working space to escape from the front of the suction cup. That is, the utility model has a small size limit on the garbage entering the working space of the suction cup 1, and the garbage in the front of the suction cup body 11 can easily enter the working space of the suction cup 1, while the garbage in the working space of the suction cup 1 can hardly escape from the front of the suction cup body 11.

[0050] A front film 12 is connected to a telescopic rod 12a, and the front films 12 do not affect each other, so when a part of the front film 12 allows garbage to enter the working space of the suction cup 1, another part of the front film 12 may be blocking the garbage in the working space of the suction cup 1 from escaping. Compared with setting a whole front film 12 at the front of the lower surface of the suction cup body 11, it not only reduces the situation where part of the garbage cannot push the front film 12 away and cannot smoothly enter the working space of the suction cup 1 due to the large mass of the whole front film, but also reduces the probability of the garbage in the working space of the suction cup 1 escaping from the gap created when other large-sized garbage enters the working space of the suction cup 1 as much as possible. Specifically, when the size of the garbage entering the working space of the suction cup 1 is too large, if it is a whole front film, the garbage will push the front film 12 away, causing the lower end of the whole front film to leave the working surface 5, thereby creating a gap. The garbage in the working space of the suction cup 1 can easily escape from the gap. However, in the utility model, the front film 12 for the garbage in the working space of the suction cup 1 to escape is not necessarily the part of the front film 12 that creates the gap.

[0051] The circular sewage suction port 14 is arranged in the middle of the lower surface of the suction cup body 11. The sewage suction port 14 is composed of an upper sewage suction port channel 141 and a sewage suction port extension 142. The upper sewage suction port channel 141 passes through the interior of the suction cup body 11 to the lower surface of the suction cup body 11. The sewage suction port extension 142 is arranged at a position corresponding to the lower surface of the suction cup body 11 and the upper sewage suction port channel 141. Figure 4-5 As shown, the sewage suction port extension 142 includes a sewage suction cylinder 142a, which is a stainless steel cylinder. The diameter of the upper end of the sewage suction cylinder 142a that contacts the lower surface of the suction cup body 11 is greater than or equal to the diameter of the sewage suction port upper channel 141, and the lower end of the sewage suction cylinder 142a does not contact the working surface 5.

[0052] Optional, such as Figure 6-7 As shown, the sewage suction port extension 142 also includes a sewage suction port rubber 142b, which is fixed around the lower end of the sewage suction cylinder 142a and extends to the working surface 5. The sewage suction port rubber 142b has a plurality of vertical cuts.

[0053] The sewage suction port extension 142 is used to extend the sewage suction port upper channel 141 to enhance the suction force of the sewage suction port 14 on the garbage on the working surface 5. When the sewage suction port extension 142 is composed of the sewage suction cylinder 142a and the sewage suction port rubber 142b, the sewage suction port rubber 142b not only extends the sewage suction port upper channel 141 to the working surface 5, further enhancing the suction force of the sewage suction port 14, but also when the volume of garbage is large, the sewage suction port rubber 142b can be turned inward into the sewage suction cylinder 142a during the process of the garbage being sucked into the sewage suction port 14, so that the garbage is smoothly sucked into the sewage suction port 14.

[0054] The rear rubber plate 13 is fixedly arranged in a wave shape behind the suction port extension 142 on the lower surface of the suction cup body 11, and the suction port extension 142 is located at the trough of the rear rubber plate 13 away from the front rubber plate 12. The rear rubber plate 13 is a relatively thick and smooth hard rubber plate, and the lower end of the rear rubber plate 13 does not contact the working surface 5.

[0055] When the garbage on the working surface enters the working space of the suction cup 1 from the front film 12, some garbage is not sucked into the suction port 14 in time because it is far away from the suction port extension 142. As the suction cup 1 moves forward in the working direction, these temporarily leftover garbage will contact the surface of the rear rubber plate 13 close to the front film 12, and thus be pushed forward in the working direction of the suction cup 1 by the rear rubber plate 13. In this process, these garbage will gather at the trough of the rear rubber plate 13 away from the front film 12, that is, gather at the suction port extension 142, so that it is convenient for the suction port 14 to suck the garbage. The rear rubber plate 13 also prevents the garbage in the working space of the suction cup 1 from escaping from the rear of the suction cup body 11.

[0056] Because the lower end of the front rubber sheet 12 in the utility model is in close contact with the working surface 5 and relatively sealed most of the time, and the lower end of the rear rubber plate 13 does not contact the working surface 5, when the water spraying device 2 sprays water toward the working surface 5 behind the suction cup body 11 to wash the floor, the sewage generated by washing the floor will no longer scatter, but will flow into the working space of the suction cup 1 through the gap between the rear rubber plate 13 and the working surface 5 along with the wind volume, and will be sucked away by the sewage suction port 14, which is not only conducive to the quick drying of the cleaned floor, but the sewage sucked away by the sewage suction port 14 will also be recycled and reused later, saving water resources.

[0057] The side baffles 15 are vertically arranged on both sides of the lower surface of the suction cup body 11, and the two ends of the rear rubber plate 13 are in contact with the inner surface of each side baffle 15, and the front rubber sheets 12 on both sides of the front part of the suction cup body 11 are also in contact with the inner surface of each side baffle 15. In the present utility model, the existence of the side baffles 15 further prevents the garbage in the working space of the suction cup 1 from escaping from both sides of the lower surface of the suction cup body 11. The surface of the side baffle 15 close to the working space of the suction cup 1 is the inner surface.

[0058] There are two sewage suction ports 14 in this embodiment.

[0059] Optional, such as Figure 2 As shown, the suction port of the suction cup 1 can also be a rounded rectangular suction port 14, and the trough position of the rear rubber plate 13 away from the front rubber plate 12 is in contact with the edge of the suction port extension 142 close to the rear of the suction cup body 11.

[0060] like Figure 7As shown, the adjustment device 3 also includes a fixed bracket 31, a connecting arm 32, an adjustment rod 33, and a joint bearing 34. The lower end of the fixed bracket 31 is movably connected to the connecting arm 32 and one end of the adjustment rod 33 through two joint bearings 34, and the other ends of the adjustment rod 33 and the connecting arm 32 are movably connected to the upper surface of the suction cup body 11 through the joint bearing 34, that is, the fixed bracket 31, the connecting arm 32, the adjustment rod 33 and the suction cup 1 form a four-bar linkage. While rotating the connecting arm 32, the adjustment rod 33 is extended and retracted, so that the numerical distance between the suction cup 1 and the working surface 5 and / or the angle between the suction cup 1 and the working surface 5 can be adjusted.

[0061] like Figure 8-Figure 9 As shown, Figure 8 yes Figure 7 A top view of Fig. 9 yes Figure 8 The enlarged schematic diagram at B in the figure. The water spraying device 2 includes a side spraying rod 21, a rotating bracket 22, a mounting bracket 23, a tension spring 24, an adjusting bolt 25 and a side spraying cylinder 26. The side spraying rod 21 is arranged behind the upper surface of the suction cup body 11. The top nozzle of the side spraying rod 21 extends out to spray water to the working surface 5 behind the suction cup 1 for floor washing. The tail of the side spraying rod 21 is hinged with the rotating bracket 22. The rotating bracket 22 is fixed to the upper surface of the suction cup body 11 by the adjusting bolt 25. The mounting bracket 23 is slidably sleeved on the rod body of the side spraying rod 21, and the mounting bracket 23 is fixedly connected to one end of the side spraying cylinder 26. The other end of the side spraying cylinder 26 is fixed to the upper surface of the suction cup body 11. The rotating bracket 22 and the mounting bracket 23 are connected by a tension spring 24. The extension and retraction of the side spray oil cylinder 26 drives the mounting bracket 23 to slide along the length direction of the rod body of the side spray rod 21. At the same time, because the mounting bracket 23 is displaced relative to the rotating bracket 22, the mounting bracket 23 is gradually subjected to the tension of the tension spring 24. Under the combined action of the tension of the tension spring 24 and the force generated by the extension and retraction of the side spray oil cylinder 26, the mounting bracket 23 generates a resultant force acting on the rod body of the side spray rod 21 and perpendicular to the length direction of the side spray rod 21. This resultant force drives the side spray rod 21 to rotate around the hinge between the tail of the side spray rod 21 and the rotating bracket 22. After loosening the adjusting bolt 25, the initial angle between the rotating bracket 22 and the mounting bracket 23 can be adjusted.

[0062] The suction cup structure of the utility model can reduce the restriction of the suction cup on the size of garbage during work, make the garbage in front of the suction cup on the working surface easily enter the working space of the suction cup, and greatly reduce the probability of garbage in the working space of the suction cup escaping, thereby improving the cleaning efficiency and the cleaning effect.

[0063] The utility model also provides a washing and sweeping vehicle, which adopts the suction cup structure as mentioned above, and the upper end of the fixing bracket 31 is fixed to the bottom of the vehicle body.

[0064] The above are only preferred embodiments of the invention and are not intended to limit the invention of the invention. The technology, shape, and structure that are not described in detail in the invention are all known technologies.

Claims

1. A suction cup structure, comprising a suction cup (1), wherein the suction cup (1) comprises a suction cup body (11) for generating negative pressure, characterized in that: The direction in which the rear part of the suction cup body (11) points toward the front part of the suction cup body (11) is the same as the working direction of the suction cup body (11); The suction cup (1) further comprises a front film (12), a rear film plate (13), and a sewage suction port (14); a plurality of the front films (12) are arranged at the front portion of the lower surface of the suction cup body (11); the sewage suction port (14) is arranged at the middle portion of the lower surface of the suction cup body (11); and the rear film plate (13) is fixedly arranged on the lower surface of the suction cup body (11) behind the sewage suction port (14).

2. A suction cup structure according to claim 1, characterized in that: The upper end of the front film (12) is connected to the lower surface of the suction cup body (11) through a hinge, and a telescopic rod (12a) is arranged between the rear surface of each front film (12) and the lower surface of the suction cup body (11), and the angle θ between the front film (12) and the working direction of the suction cup body (11) is an obtuse angle.

3. A suction cup structure according to claim 2, characterized in that: The sewage suction port (14) comprises an upper sewage suction port channel (141) and a sewage suction port extension (142); the upper sewage suction port channel (141) penetrates through the interior of the suction cup body (11) to the lower surface of the suction cup body (11); the sewage suction port extension (142) is arranged at a position on the lower surface of the suction cup body (11) corresponding to the upper sewage suction port channel (141); the sewage suction port extension (142) comprises a sewage suction cylinder (142a); the diameter of the upper end of the sewage suction cylinder (142a) in contact with the lower surface of the suction cup body (11) is greater than or equal to the diameter of the upper sewage suction port channel (141), and the lower end of the sewage suction cylinder (142a) does not contact the working surface (5).

4. A suction cup structure according to claim 3, characterized in that: The sewage suction port extension (142) further comprises a sewage suction port rubber (142b), wherein the sewage suction port rubber (142b) is fixedly arranged around the lower end of the sewage suction cylinder (142a), and the sewage suction port rubber (142b) extends to the working surface (5), and a plurality of vertical cuts are formed on the sewage suction port rubber (142b).

5. A suction cup structure according to claim 3 or 4, characterized in that: The rear rubber plate (13) is fixedly arranged in a wave shape behind the sewage suction port extension (142) on the lower surface of the suction cup body (11); the sewage suction port extension (142) is located at the trough of the rear rubber plate (13) away from the front rubber plate (12), and the lower end of the rear rubber plate (13) does not contact the working surface (5).

6. A suction cup structure according to claim 5, characterized in that: The suction cup (1) further comprises side baffles (15) vertically arranged on both sides of the suction cup body (11), the two ends of the rear rubber plate (13) are in contact with the inner surfaces of the side baffles (15), and the front rubber sheets (12) on both sides of the front of the suction cup body (11) are also in contact with the inner surfaces of the side baffles (15).

7. A suction cup structure according to claim 6, characterized in that: It also comprises a water spraying device (2) and an adjusting device (3), wherein the adjusting device (3) is used to adjust the distance and / or angle between the suction cup (1) and the working surface (5), and the adjusting device (3) is fixedly arranged on the upper surface of the suction cup body (11); the water spraying device (2) is used to spray water onto the working surface (5), and the water spraying device (2) is arranged on the upper surface of the suction cup body (11).

8. A suction cup structure according to claim 7, characterized in that: The adjusting device (3) comprises a fixed bracket (31), a connecting arm (32), an adjusting rod (33), and a joint bearing (34); the lower end of the fixed bracket (31) is movably connected to the connecting arm (32) and one end of the adjusting rod (33) through two joint bearings (34), respectively; the other ends of the adjusting rod (33) and the connecting arm (32) are movably connected to the upper surface of the suction cup body (11) through the joint bearings (34), respectively, that is, the fixed bracket (31), the connecting arm (32), the adjusting rod (33), and the suction cup (1) form a four-bar linkage.

9. A suction cup structure according to claim 8, characterized in that: The water spraying device (2) comprises a side spraying rod (21), a rotating bracket (22), a mounting bracket (23), a tension spring (24), an adjusting bolt (25) and a side spraying cylinder (26); the side spraying rod (21) is arranged behind the upper surface of the suction cup body (11); the tail of the side spraying rod (21) is hinged to the rotating bracket (22); the rotating bracket (22) is fixed to the upper surface of the suction cup body (11) by the adjusting bolt (25); the mounting bracket The side spray rod (21) is slidably sleeved on the rod body of the side spray rod (21), and the mounting bracket (23) is fixedly connected to one end of the side spray cylinder (26), and the other end of the side spray cylinder (26) is fixed to the upper surface of the suction cup body (11). The rotating bracket (22) and the mounting bracket (23) are connected via the tension spring (24), and the side spray cylinder (26) is extended and retracted to drive the mounting bracket (23) to slide along the length direction of the side spray rod (21).

10. A washing and sweeping vehicle, using a suction cup structure as claimed in claim 9, characterized in that: The upper end of the fixing bracket (31) is fixed to the bottom of the vehicle body.

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