Sanitation vehicles

Abstract

The present disclosure relates to a sanitation vehicle, which includes a sewage tank, a power compartment and a suction cylinder assembly, wherein the suction cylinder assembly includes a suction cylinder for sucking dirt into the sewage tank, and the suction cylinder includes a suction port located outside the sewage tank and a discharge port located inside the sewage tank, and is characterized in that the suction cylinder assembly also includes a cover, a connecting rod mechanism and an actuator, wherein the cover is movably arranged at the discharge port, the actuator is arranged in the power compartment, one end of the connecting rod mechanism is connected to the actuator, and the other end passes through the side wall of the sewage tank and is connected to the cover, and the actuator is used to actuate the connecting rod mechanism to move, so as to drive the cover to open or close the discharge port. The suction cylinder assembly can prevent the liquid in the sewage tank from being refilled to the ground from the suction cylinder, and has a simple structure and high reliability.

Description

Technical Field

[0001] The present disclosure relates to the technical field of environmental protection equipment, and in particular, to a sanitation vehicle. Background Art

[0002] At present, the sanitation vehicles (especially the sweeping vehicles) used for urban road cleaning will continuously recycle sewage during the operation, so that the sewage level in the garbage bin will continue to rise. When the sewage level reaches the limit height, it is necessary to transfer the sewage. During the transfer, it is inevitable that there will be turning, acceleration or deceleration during driving. At this time, the sewage in the garbage bin is easy to flow back into the suction cylinder under the action of inertia and then leak out on the ground, causing secondary pollution. To solve this problem, the related technology usually adds a circle of baffles to the suction cylinder of the garbage bin to prevent sewage from flowing back, but the effect of the baffle is very limited. It can only prevent a small amount of sewage from flowing back into the suction cylinder when the sewage oscillates very little, and cannot fundamentally solve the above problem. In other schemes, a flap mechanism is usually added to the suction cylinder of the garbage bin to block the suction cylinder, but its driving device (such as a cylinder, etc.) is located in the garbage bin, which is easily contaminated and corroded by garbage, gravel, sewage and other dirt in the garbage bin, and will soon be damaged and fail. Summary of the invention

[0003] The purpose of the present disclosure is to provide a sanitation vehicle, the suction cylinder assembly of which can prevent the liquid in the sewage tank from flowing back to the ground through the suction cylinder, and has a simple structure and high reliability.

[0004] In order to achieve the above-mentioned purpose, the present disclosure provides a sanitation vehicle, including a sewage tank, a power compartment and a suction cylinder assembly, the suction cylinder assembly including a suction cylinder for sucking dirt into the sewage tank, the suction cylinder including a suction port located outside the sewage tank and a discharge port located inside the sewage tank, the suction cylinder assembly also includes a cover, a connecting rod mechanism and an actuator, the cover is movably arranged at the discharge port, the actuator is arranged in the power compartment, one end of the connecting rod mechanism is connected to the actuator, and the other end passes through the side wall of the sewage tank and is connected to the cover, and the actuator is used to actuate the connecting rod mechanism to move, so as to drive the cover to open or close the discharge port.

[0005] Optionally, the connecting rod mechanism includes a rocker and a sliding rod, the sliding rod can be axially slidably penetrated through the side wall of the sewage tank, and has a first end located in the power compartment and a second end located in the sewage tank, the first end is connected to the actuator, the second end is hinged to one end of the rocker around a first rotation axis, the other end of the rocker is hinged to the cover around a second rotation axis, and the first rotation axis and the second rotation axis are arranged in parallel.

[0006] Optionally, the suction cylinder assembly also includes at least one supporting structure, which includes a supporting seat and a sliding sleeve. The supporting seat is fixed on the side wall of the sewage tank and / or the power compartment, and the sliding sleeve is formed into a hollow sleeve shape and is arranged inside the supporting seat. The sliding rod can be slidably inserted in the sliding sleeve.

[0007] Optionally, the actuator is a linear drive cylinder, which includes a cylinder body and a telescopic rod. The telescopic direction of the telescopic rod is arranged parallel to the axis of the sliding rod. A connecting piece is also fixed to the first end of the sliding rod. The connecting piece is formed in a rod shape and is arranged perpendicular to the axis of the sliding rod. The telescopic rod is hinged on the connecting piece, and the cylinder body is hinged to the inner wall of the power bin.

[0008] Optionally, the suction cup assembly further comprises a sealing cap mounting seat, which comprises a fixing member and an ear plate, wherein the fixing member is formed in a semi-annular shape and is detachably fixed to the outer peripheral wall of the suction cup, the ear plate is fixed to the fixing member and has a gap with the outer peripheral wall of the suction cup, the sealing cap is hinged to the ear plate and rotates relative to the discharge port driven by the connecting rod mechanism.

[0009] Optionally, the sealing cover includes a cover portion and a connecting portion, the cover portion is formed in a disc shape and is used to block the discharge port, the connecting portion is arranged at an angle to the edge of the cover portion relative to the cover portion, and a first hinge seat and a second hinge seat are provided on the connecting portion, the first hinge seat is hinged to the ear plate, and the connecting rod mechanism is hinged to the second hinge seat, and the rotation axes of the first hinge seat and the second hinge seat are arranged in parallel.

[0010] Optionally, an elastic sealing pad is provided on a side of the cover portion close to the discharge port.

[0011] Optionally, the sewage tank and the power compartment are arranged adjacent to each other and share the same side wall, the side wall is provided with a first through hole, one end of the connecting rod mechanism is connected to the cover of the suction cylinder assembly, and the other end passes through the first through hole and is connected to the actuator of the suction cylinder assembly.

[0012] Optionally, the sanitation vehicle further includes a clean water tank, which is disposed between the sewage tank and the power compartment, the power compartment is provided with a second through hole, and the connecting rod mechanism passes through the first through hole and the second through hole from the sewage tank to the power compartment.

[0013] Optionally, the suction cylinder assembly also includes a sealing sleeve, which is formed as a hollow tube with openings at both ends, one end of the sealing sleeve is connected to the first through hole, and the other end is connected to the second through hole to form a sealed channel for the connecting rod mechanism to pass through the clean water tank.

[0014] Through the above technical solution, in the disclosed embodiment of the present invention, the suction cylinder assembly of the sanitation vehicle can selectively open or close the discharge port by setting a cover, that is, the discharge port is opened during the suction cleaning operation to keep the suction cylinder unobstructed, and the discharge port is closed during the transfer operation to prevent the liquid in the sewage tank from returning to the suction cylinder, avoid secondary pollution to the road, and improve the cleaning ability of the sanitation vehicle. In addition, the actuator of the above-mentioned suction cylinder assembly is arranged in the power compartment, which can prevent the actuator from being corroded and collided by the dirt in the sewage tank, thereby improving the reliability and service life of the actuator. In addition, the actuator and the cover transmit power through a connecting rod mechanism, which has a simple structure, and the connecting rod mechanism can realize more complex spatial movement with high reliability. The connecting rod mechanism can also realize long-distance operation control, increasing the flexibility of the installation of the actuator and the suction cylinder.

[0015] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0017] Figure 1 It is a structural schematic diagram of the suction cylinder assembly in the embodiment of the present disclosure being assembled on a sanitation vehicle;

[0018] Figure 2 It is a structural schematic diagram of the suction cylinder assembly in the embodiment of the present disclosure being assembled in the sewage tank;

[0019] Figure 3 yes Figure 2 A partial enlarged view of area A in the middle.

[0020] Description of Reference Numerals

[0021] 10-suction cylinder assembly; 11-suction cylinder; 111-suction port; 112-discharge port; 12-sealing cover; 121-cover; 122-connecting part; 1221-first hinge seat; 1222-second hinge seat; 123-elastic sealing pad; 13-connecting rod mechanism; 131-rocker; 132-sliding rod; 133-adapter; 14-actuator; 141-cylinder body; 142-telescopic rod; 15-supporting structure; 16-sealing cover mounting seat; 161-fixing part; 162-ear plate; 17-sealing sleeve; 20-sewage tank; 21-anti-collision cover; 30-clean water tank; 40-power compartment; 41-blower assembly; 42-transition air duct; 50-chassis; 60-cab; 70-suction cup assembly; 71-suction cup; 72-transition suction pipe; 73-lifting mechanism. DETAILED DESCRIPTION

[0022] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0023] In the present disclosure, unless otherwise stated, the directional words used, such as "upper" and "lower", refer to the orientation or positional relationship of the product in which it is usually placed when in use, which can be understood as the upper and lower directions along the direction of gravity, and also correspond to the "upper and lower" of the drawings in the accompanying drawings; "inside and outside" refer to the "inside and outside" relative to the outline of the component or structure itself. In addition, it should be noted that the terms used, such as "first" and "second", etc., are used to distinguish one element from another, and do not have order and importance. In addition, in the description of the reference drawings, the same mark in different drawings represents the same element.

[0024] The embodiment of the present disclosure provides a sanitation vehicle, which includes a sewage tank 20, a power compartment 40 and a suction cylinder assembly 10, wherein the power compartment 40 refers to a compartment for placing power components such as an auxiliary engine, and the suction cylinder assembly 10 is mainly used on the sanitation vehicle to perform road cleaning operations. Figure 1 and Figure 2 As shown, the suction cylinder assembly 10 includes a suction cylinder 11 for sucking dirt into the sewage tank 20. The suction cylinder 11 includes a suction port 111 located outside the sewage tank 20 and a discharge port 112 located inside the sewage tank 20. When the sanitation vehicle performs road cleaning operations, it sprays water on the road to suppress dust and wash. The suction port 111 is close to the road, and negative pressure is formed in the sewage tank 20, so that various garbage, sand and gravel, sewage and other dirt on the road surface enter the sewage tank 20 at high speed from the suction port 111. The suction cylinder assembly 10 in the embodiment of the present disclosure also includes a cover 12, a connecting rod mechanism 13 and an actuator 14. The cover 12 is movably arranged at the discharge port 112. The actuator 14 is used to be arranged in the power compartment 40. One end of the connecting rod mechanism 13 is connected to the actuator 14, and the other end passes through the side wall of the sewage tank 20 and is connected to the cover 12. The actuator 14 actuates the connecting rod mechanism 13 to move, so as to drive the cover 12 to open or close the discharge port 112.

[0025] According to the above structure, when the sanitation vehicle performs road cleaning, the actuator 14 drives the connecting rod mechanism 13 to drive the cover 12 to open the discharge port 112, so that the dirt extracted from the suction port 111 can be discharged from the discharge port 112 into the sewage tank 20. When the liquid level in the sewage tank 20 reaches the limit position, the actuator 14 drives the connecting rod mechanism 13 to drive the cover 12 to close the discharge port 112 to prevent the liquid in the sewage tank 20 from flowing back into the suction cylinder 11 due to inertial shaking.

[0026] Through the above technical solution, in the disclosed embodiment, the suction cylinder assembly 10 of the sanitation vehicle can selectively open or close the discharge port 112 by setting the cover 12, that is, the discharge port 112 is opened in the suction cleaning operation to keep the suction cylinder 11 unobstructed, and the discharge port 112 is closed in the transfer operation to prevent the liquid in the sewage tank 20 from returning to the suction cylinder 11, avoid secondary pollution to the road, and improve the cleaning ability of the sanitation vehicle. In addition, the actuator 14 of the above-mentioned suction cylinder assembly 10 is arranged in the power compartment 40, which can prevent the actuator 14 from being corroded and collided by the dirt in the sewage tank 20, and improve the reliability and service life of the actuator 14. In addition, the actuator 14 and the cover 12 transmit power through the connecting rod mechanism 13, which has a simple structure, and the connecting rod mechanism 13 can realize more complex spatial movement, with high reliability. The connecting rod mechanism 13 can also realize remote operation control, increasing the flexibility of the installation of the actuator 14 and the suction cylinder 11.

[0027] In one embodiment of the present disclosure, continue as Figure 1 and Figure 2 As shown, the connecting rod mechanism 13 includes a rocking rod 131 and a sliding rod 132. The sliding rod 132 is used to be axially slidable and penetrates the side wall of the sewage tank 20, and has a first end located in the power compartment 40 and a second end located in the sewage tank 20. The first end is connected to the actuator 14, and the second end is hinged to one end of the rocking rod 131 around the first rotation axis. The other end of the rocking rod 131 is hinged to the cover 12 around the second rotation axis. The first rotation axis and the second rotation axis are arranged in parallel. When the actuator 14 drives the sliding rod 132 to move axially, it can drive the rocking rod 131 to move in space, thereby moving the cover 12 to open or close the discharge port 112 of the suction tube 11. It can be seen that the control of the cover 12 can be achieved by only two rods, the structure is very simple, and the lengths of the sliding rod 132 and the rocking rod 131 can be designed according to actual conditions, and will not limit the distance between the actuator 14 and the cover 12.

[0028] In an optional embodiment of the present disclosure, the length of the rocker 131 can be much smaller than the length of the slide bar 132, so as to reduce the activity space required for the rocker 131 in the sewage tank 20 and increase the flexibility of the swing of the rocker 131. The length of the slide bar 132 is designed according to the actual situation. In one example, if the actuator 14 is set in the power compartment 40, and the power compartment 40 and the sewage tank 20 are arranged adjacently and share the same side wall, the length of the slide bar 132 only needs to be able to pass through the side wall of the sewage tank 20 and connect between the actuator 14 and the cover 12. In another example of the present disclosure, if the actuator 14 is set away from the sewage tank 20, for example, it is set on the power compartment 40, the rear side wall of the cab 60 or the chassis 50, the slide bar 132 can be adaptively increased in length to adapt to the distance between the actuator 14 and the cover 12.

[0029] In addition, in other embodiments of the present disclosure, the connecting rod mechanism 13 may also be a multi-connecting rod mechanism 13 such as a three-connecting rod mechanism 13 or a four-connecting rod mechanism 13 , and the present disclosure does not limit the number of rods in the connecting rod mechanism 13 .

[0030] In order to facilitate the installation of the connecting rod mechanism 13, as shown in FIG. Figure 2 As shown, the suction cylinder assembly 10 further includes at least one supporting structure 15, the supporting structure 15 includes a supporting seat and a sliding sleeve, the supporting seat is fixed on the side wall of the sewage tank 20 and / or the power compartment 40, the sliding sleeve is formed in a hollow sleeve shape and is arranged inside the supporting seat, and the sliding rod 132 is slidably inserted in the sliding sleeve. The supporting seat is fixed on the side wall of the sewage tank 20, and can provide support for the sliding rod 132. The sliding sleeve is sleeved on the sliding rod 132 and is in sliding contact with the sliding rod 132 to prevent the supporting seat from being worn.

[0031] Optionally, only one supporting structure 15 may be arranged in the side wall of the sewage tank 20, or only one supporting structure 15 may be arranged in the side wall of the power compartment 40; or, in another example, supporting structures 15 may be arranged in the side walls of the sewage tank 20 and the power compartment 40, respectively, and the present disclosure is not limited to this.

[0032] The sleeve can be made of corrosion-resistant and wear-resistant materials such as metal, hard plastic, and composite materials, and the roughness of its inner surface is relatively small to reduce the friction between the sleeve and the slide rod 132 and reduce the sliding resistance of the slide rod 132.

[0033] The support seat has a mounting groove in the middle thereof for mounting the sleeve, and the sleeve is embedded in the mounting groove. The sleeve can be fixed in the support seat to increase the stability of the sleeve. The sleeve is also rotatably mounted in the support seat relative to the support seat, and the support seat limits the axial freedom of the sleeve to increase the flexibility of the slide rod 132 when it moves axially, which is not limited in the present disclosure.

[0034] In one example of the present disclosure, the support structure 15 may also be multiple and respectively arranged on the inner wall and outer wall of the sewage tank 20 . If the actuator 14 is installed in the power compartment 40 , the support structure 15 may also be arranged on the inner wall of the power compartment 40 .

[0035] In the embodiments of the present disclosure, Figure 2 As shown, the actuator 14 is a linear drive cylinder, which includes a cylinder body 141 and a telescopic rod 142, and the telescopic direction of the telescopic rod 142 is arranged parallel to the axis of the slide bar 132. When the linear drive cylinder is extended and retracted, the slide bar 132 can be driven to reciprocate along the axial direction, and the energy loss is small.

[0036] In addition, a first end of the slide bar 132 is also fixed with an adapter 133, which is formed in a rod shape and arranged perpendicular to the axis of the slide bar 132, the telescopic rod 142 is hinged on the adapter 133, and the cylinder 141 is hinged on the inner wall of the power compartment 40. Through the adapter 133, the actuator 14 and the slide bar 132 can be arranged side by side, which is convenient for installing the actuator 14, and the actuator 14 does not increase the overall length, so that the space utilization is more reasonable.

[0037] The cover 12 can selectively open or close the discharge port 112 of the suction tube 11, and can move in a variety of ways such as translation, rotation, and flipping, which are not limited in the present disclosure. Figures 1 to 3 As shown, in the embodiment of the present disclosure, the suction tube assembly 10 further includes a cover mounting seat 16, which includes a fixing member 161 and an ear plate 162. The fixing member 161 is formed in a semi-annular shape and is detachably fixed to the outer peripheral wall of the suction tube 11 to provide support for the cover 12. In other embodiments of the present disclosure, the fixing member 161 may also be formed as a structure such as a clamp, but is not limited thereto.

[0038] The ear plate 162 is fixed on the fixing member 161 and is provided with a gap with the outer peripheral wall of the suction cylinder 11. The cover 12 is hinged on the ear plate 162 and rotates relative to the discharge port 112 driven by the connecting rod mechanism 13. The ear plate 162 is provided with a gap with the outer peripheral wall of the suction cylinder 11 to prevent the cover 12 from interfering with the side wall of the suction cylinder 11 when moving, and to provide a moving space for the cover 12 to move.

[0039] like Figure 3 As shown, in the embodiment of the present disclosure, the cover 12 includes a cover portion 121 and a connection portion 122. The cover portion 121 is formed into a disc shape and is used to block the discharge port 112. The connection portion 122 is arranged at an angle and tilted relative to the cover portion 121 at the edge of the cover portion 121. The connection portion 122 is provided with a first hinge seat 1221 and a second hinge seat 1222. The first hinge seat 1221 is hinged on the ear plate 162. The connecting rod mechanism 13 is hinged on the second hinge seat 1222. The rotation axes of the first hinge seat 1221 and the second hinge seat 1222 are arranged in parallel. Among them, the connection portion 122 and the cover portion 121 are at an angle to each other, which facilitates the transmission mechanism to control the cover portion 121 to approach and move away from the discharge port 112, thereby reducing the movement difficulty of the transmission mechanism. In addition, by setting the connection portion 122 to fix the first hinge seat 1221 and the second hinge seat 1222, the first hinge seat 1221 and the second hinge seat 1222 are prevented from interfering with the movement of the cover portion 121.

[0040] In other embodiments of the present disclosure, the cover 121 may also be formed in a box shape, an arch shape, etc., but is not limited thereto.

[0041] In addition, an elastic sealing gasket 123 is provided on one side of the cover 121 close to the discharge port 112. When the cover 121 closes the discharge port 112 of the suction cylinder 11, the elastic sealing gasket 123 abuts between the cover 121 and the edge of the discharge port 112 to improve the sealing performance of the cover 121 and prevent sewage from penetrating into the suction cylinder 11.

[0042] The elastic sealing pad 123 may be an elastic pad such as rubber or silicone, and may be directly formed on the cover 121 through a vulcanization process, or may be fixed to the cover 121 through an adhesive, which is not limited in the present disclosure.

[0043] In addition, in an optional embodiment of the present disclosure, the sanitation vehicle in the embodiment of the present disclosure also includes an anti-collision cover 21, which is arranged in the sewage tank 20 and is arranged toward the discharge port 112 of the suction cylinder 11. The dirt sucked from the discharge port 112 of the suction cylinder 11 will continue to move upward under the action of inertia and hit the anti-collision cover 21. The anti-collision cover 21 can protect the inner wall of the sewage tank 20 from damage.

[0044] In the disclosed embodiment, a first through hole is provided on the side wall of the sewage tank 20 , one end of the connecting rod mechanism 13 is connected to the cover 12 of the suction cylinder assembly 10 , and the other end passes through the first through hole and is connected to the actuator 14 of the suction cylinder assembly 10 .

[0045] It should be understood that the support structure 15 of the suction cylinder assembly 10 may be disposed on one side or both sides of the first through hole to provide support for the sliding rod 132 of the connecting rod mechanism 13 .

[0046] In one example of the present disclosure, the sewage tank 20 and the power compartment 40 can be arranged adjacent to each other, and the sewage tank 20 and the power compartment 40 share the same side wall. In this case, the first through hole and the second through hole are the same through hole, and a supporting structure 15 can be arranged on both sides of the through hole to provide support for the sliding rod 132 of the connecting rod mechanism 13.

[0047] In another example of the present disclosure, Figures 1 to 3 As shown, the sanitation vehicle further includes a clean water tank 30, which is disposed between the sewage tank 20 and the power compartment 40, and the power compartment 40 is provided with a second through hole, and the connecting rod mechanism 13 passes through the first through hole and the second through hole from the sewage tank 20 to the power compartment 40. Here, the first through hole and the second through hole can provide two supporting points for the connecting rod mechanism 13, thereby increasing the stability of the connecting rod mechanism 13.

[0048] In addition, the connecting rod mechanism 13 of the suction cylinder assembly 10 extends from the sewage tank 20 through the clean water tank 30 and into the power compartment 40. The suction cylinder assembly 10 further includes a sealing sleeve 17, which is formed as a hollow pipe with two ends open. One end of the sealing sleeve 17 is connected to the first through hole, and the other end is connected to the second through hole to form a sealed passage for the connecting rod mechanism 13 to pass through the clean water tank 30. In other words, the interior of the sealing sleeve 17 is connected to the sewage tank 20 and the power compartment 40 through the first through hole and the second through hole, respectively, and the sealing sleeve 17 can maintain a closed space in the clean water tank 30 to prevent the liquids in the clean water tank 30 and the sewage tank 20 from penetrating each other.

[0049] The sliding rod 132 of the above-mentioned connecting rod mechanism 13 can pass through the first through hole from the sewage tank 20 into the sealing sleeve 17, and extend out from the second through hole through the sealing sleeve 17. The sealing sleeve 17 is not only used to seal the liquid in the clean water tank 30, but also can provide sliding support for the sliding sleeve to maintain the stability of the sliding rod 132.

[0050] like Figure 1 As shown, the sanitation vehicle further includes structures such as a chassis 50, a cab 60, a fan assembly 41 and a suction cup assembly 70. In the disclosed embodiment, the power compartment 40, the clean water tank 30 and the sewage tank 20 are all arranged on the chassis 50, and the power compartment 40 is arranged close to the cab 60, the sewage tank 20 is arranged away from the cab 60, and the clean water tank 30 is arranged between the power compartment 40 and the sewage tank 20. The fan assembly 41 is arranged in the power compartment 40, and the fan assembly 41 includes a fan and a driving device. The sanitation vehicle also includes a transition air duct 42, one end of which is connected to the sewage tank 20, and the other end is connected to the fan; in addition, the suction cup assembly 70 also includes a suction cup 71, a transition suction pipe 72 and a lifting mechanism 73, and the lifting mechanism 73 is fixed on the chassis 50. One end of the transition suction pipe 72 is connected to the suction port 111 of the suction cylinder 11, and the other end is connected to the suction cup 71. The suction cup 71 is also connected to the lifting mechanism 73 so as to be close to or away from the ground under the drive of the lifting mechanism 73.

[0051] According to the above structure, the main working principle of the sanitation vehicle in the embodiment of the present disclosure in the road cleaning operation is roughly as follows:

[0052] First, the lifting mechanism 73 drives the suction cup 71 to be lowered to the ground; the actuator 14 drives the slide bar 132 to move, so as to pull the rocker 131 to make a planar motion in the sewage tank 20, thereby driving the cover 12 to open the discharge port 112 of the suction cylinder 11. Then, the driving device drives the fan to rotate to extract the air in the sewage tank 20, so that negative pressure is formed in the sewage tank 20; finally, under the action of the negative pressure, the suction cylinder 11 sucks the dirt on the ground into the sewage tank 20 through the suction cup assembly 70.

[0053] Accordingly, the above-mentioned sanitation vehicle can perform the following operations during the transfer operation: first, the driving device stops operating, and the lifting mechanism 73 drives the suction cup 71 to be placed close to the chassis 50 of the sanitation vehicle; then, the actuator 14 drives the slide bar 132 to move, so as to pull the rocker 131 to make a planar motion in the sewage tank 20, thereby driving the cover 12 to close the discharge port 112 of the suction cylinder 11, so as to prevent the dirt in the sewage tank 20 from being backflowed to the ground from the discharge port 112 during the transfer.

[0054] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0055] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0056] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A sanitation vehicle, comprising a sewage tank (20), a power compartment (40) and a suction cylinder assembly, wherein the suction cylinder assembly comprises a suction cylinder (11) for sucking waste into the sewage tank (20), the suction cylinder (11) comprising a suction port (111) located outside the sewage tank (20) and a discharge port (112) located inside the sewage tank (20), characterized in that: The suction cylinder assembly (10) further comprises a cover (12), a connecting rod mechanism (13) and an actuating member (14); the cover (12) is movably arranged at the discharge port (112); the actuating member (14) is arranged in the power bin (40); one end of the connecting rod mechanism (13) is connected to the actuating member (14); the other end of the connecting rod mechanism (13) passes through a side wall of the sewage tank (20) and is connected to the cover (12); the actuating member (14) is used to actuate the connecting rod mechanism (13) to move, so as to drive the cover (12) to open or close the discharge port (112); The connecting rod mechanism (13) comprises a rocking rod (131) and a sliding rod (132); the sliding rod (132) is axially slidably disposed through a side wall of the sewage tank (20), and has a first end located in the power compartment (40) and a second end located in the sewage tank (20); the first end is connected to the actuator (14); the second end is hinged to one end of the rocking rod (131) around a first rotation axis; the other end of the rocking rod (131) is hinged to the cover (12) around a second rotation axis; the first rotation axis and the second rotation axis are arranged in parallel; The actuator (14) is a linear drive cylinder, which includes a cylinder body (141) and a telescopic rod (142). The telescopic direction of the telescopic rod (142) is arranged parallel to the axis of the sliding rod (132). The first end of the sliding rod (132) is also fixed with an adapter (133). The adapter (133) is formed in a rod shape and is arranged perpendicular to the axis of the sliding rod (132). The telescopic rod (142) is hinged on the adapter (133), and the cylinder body (141) is hinged on the inner wall of the power bin (40).

2. The sanitation vehicle according to claim 1, characterized in that: The suction cylinder assembly (10) further comprises at least one supporting structure (15), wherein the supporting structure (15) comprises a supporting seat and a sliding sleeve, wherein the supporting seat is fixed on a side wall of the sewage tank (20) and / or the power compartment (40), and the sliding sleeve is formed into a hollow sleeve shape and is arranged inside the supporting seat, and the sliding rod (132) is slidably inserted into the sliding sleeve.

3. The sanitation vehicle according to claim 1 or 2, characterized in that: The suction cylinder assembly (10) further comprises a sealing cover mounting seat (16), wherein the sealing cover mounting seat (16) comprises a fixing member (161) and an ear plate (162), wherein the fixing member (161) is formed in a semi-annular shape and is detachably fixed to the outer peripheral wall of the suction cylinder (11), wherein the ear plate (162) is fixed to the fixing member (161) and is provided with a gap with the outer peripheral wall of the suction cylinder (11), and wherein the sealing cover (12) is hingedly connected to the ear plate (162) and rotates relative to the discharge port (112) under the drive of the connecting rod mechanism (13).

4. The sanitation vehicle according to claim 3, characterized in that: The cover (12) comprises a cover portion (121) and a connecting portion (122); the cover portion (121) is formed in a disc shape and is used to block the discharge port (112); the connecting portion (122) is arranged at an angle to the edge of the cover portion (121) relative to the cover portion (121); a first hinge seat (1221) and a second hinge seat (1222) are provided on the connecting portion (122); the first hinge seat (1221) is hinged on the ear plate (162); the connecting rod mechanism (13) is hinged on the second hinge seat (1222); and the rotation axes of the first hinge seat (1221) and the second hinge seat (1222) are arranged in parallel.

5. The sanitation vehicle according to claim 4, characterized in that: An elastic sealing pad (123) is provided on one side of the cover portion (121) close to the discharge port (112).

6. The sanitation vehicle according to claim 1, characterized in that: A first through hole is provided on the side wall of the sewage tank (20); one end of the connecting rod mechanism (13) is connected to the cover (12) of the suction cylinder assembly (10); and the other end passes through the first through hole and is connected to the actuating member (14) of the suction cylinder assembly (10).

7. The sanitation vehicle according to claim 6, characterized in that: The sanitation vehicle further comprises a clean water tank (30), the clean water tank (30) being arranged between the sewage tank (20) and the power compartment (40), the power compartment (40) being provided with a second through hole, and the connecting rod mechanism (13) passing through the first through hole and the second through hole from the sewage tank (20) to the power compartment (40).

8. The sanitation vehicle according to claim 7, characterized in that: The suction cylinder assembly (10) further comprises a sealing sleeve (17), wherein the sealing sleeve (17) is formed as a hollow pipe with two ends open, one end of the sealing sleeve (17) being connected to the first through hole and the other end being connected to the second through hole, so as to form a sealed passage for the connecting rod mechanism (13) to pass through the clean water tank (30).

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