Air duct filter cleaning device and sanitation vehicle

Abstract

The present invention provides an air duct filter cleaning device and a sanitation vehicle. The air duct filter cleaning device includes a housing, a nozzle assembly, a filter, a drive assembly, and an adjustment member. The nozzle assembly is rotatably mounted on the housing; the filter is mounted on the housing; the housing is mounted on the drive assembly, and the drive assembly is used to drive the housing to rotate; and the adjustment member is mounted on the nozzle assembly. When the housing rotates, the nozzle assembly and the filter rotate, and the adjustment member is used to adjust the nozzle assembly to rotate to a first direction and maintain spraying cleaning liquid in the first direction. When the filter rotates, the movement path of the filter intersects with the first direction. The technical solution of the present invention realizes automated cleaning of the filter without manual intervention, can adapt to various vehicle models, and is not limited by space.

Description

Technical Field

[0001] The present invention relates to the technical field of special equipment, and in particular to an air duct filter cleaning device and a sanitation vehicle. Background Art

[0002] At present, road cleaning in major cities in my country has basically been mechanized. Among them, sanitation vehicles are the main models for road cleaning in recent years. Because of their multiple functions and high cleanliness of road cleaning, they are deeply loved by users.

[0003] Sanitation vehicles usually use high-pressure water pumps to pressurize clean water, and then use the high-pressure spray bars on both sides of the sweeping disc and the long high-pressure spray bar behind the suction nozzle to clean the road surface with high-pressure water jets. The sewage and garbage generated after cleaning the road surface are driven directly under the suction nozzle. Under the negative pressure of the fan, the sewage with mud, sand and garbage is recycled into the garbage bin.

[0004] After pollutants such as garbage and sediment are sucked into the box, some of the flocculent matter mixed in them will be adsorbed on the filter screen of the air duct under the action of negative pressure. As the flocculent matter accumulates, the ventilation area is reduced, resulting in an increase in flow rate. A small amount of mud and dirt is also adsorbed on the filter screen until the filter screen is completely blocked and cannot work.

[0005] Currently, manual cleaning is often used to address this problem. A high-pressure water gun is installed on the vehicle, and the filter is manually flushed after the sewage and garbage are poured out. However, this only works when the air duct is at the rear of the vehicle. If the air duct is located at the front, drilling into the box is required for cleaning, which is very inconvenient for manual operation.

[0006] Some models also feature an automatic flushing system, which uses a bracket mounted above the filter to hold a water gun. The system automatically cleans the filter by rotating the gun. However, the large swing amplitude of the gun requires a large installation space, making it difficult to install in smaller vehicles. Summary of the Invention

[0007] The main purpose of the present invention is to provide an air duct filter cleaning device and a sanitation vehicle, aiming to solve the technical problem that the existing technology uses a method of manually cleaning the filter, which is limited by the operating space and is only applicable to vehicles with the air duct located at the rear of the vehicle, and has great limitations; and uses an automatic filter cleaning method, which cannot meet the installation space requirements for smaller vehicles.

[0008] To achieve the above-mentioned object, the present invention provides an air duct filter cleaning device, which comprises:

[0009] case;

[0010] a nozzle assembly, the nozzle assembly being rotatably disposed on the housing;

[0011] a filter screen, the filter screen being arranged on the housing;

[0012] A driving assembly, the housing is provided on the driving assembly, and the driving assembly is used to drive the housing to rotate;

[0013] an adjusting member, the adjusting member being arranged on the nozzle assembly;

[0014] When the shell rotates to drive the nozzle assembly and the filter to rotate, the adjustment member is used to adjust the nozzle assembly to rotate to a first direction and keep spraying cleaning liquid in the first direction, and the movement path of the filter intersects with the first direction when the filter rotates.

[0015] Optionally, the nozzle assembly comprises:

[0016] a bracket, wherein the bracket is arranged on the housing;

[0017] a nozzle having a water inlet on one side for connecting to an external water supply pipe and a plurality of water outlets on the other side;

[0018] A bearing is provided at each end of the bracket, the bracket is connected to the outer ring of the bearing, and the two ends of the nozzle are respectively connected to the inner rings of the two bearings.

[0019] Optionally, the nozzle assembly further includes a pneumatic valve, which is arranged on the water inlet.

[0020] Optionally, the adjusting member is a counterweight plate, one end of the counterweight plate is connected to the nozzle, and the other end extends radially along the nozzle toward a side away from the nozzle.

[0021] Optionally, the angle between the counterweight plate and the first direction is 30° to 60°.

[0022] Optionally, the bracket includes two mounting seats, which are arranged opposite to each other on the housing, and each mounting seat is correspondingly provided with one bearing.

[0023] Optionally, there are multiple nozzle assemblies, and the multiple nozzle assemblies are arranged on the shell at intervals.

[0024] Optionally, a driving rod (50) is provided, wherein one end of the driving rod (50) is rotatably connected to an external support structure, and the other end is connected to the housing (10), and when the driving rod (50) rotates, the housing (10) is driven to rotate around a hinged position of the driving rod (50).

[0025] Optionally, the air duct filter cleaning device further includes:

[0026] a vacuum generator, the vacuum generator being arranged on one side of the housing;

[0027] A suction pipe, one end of which is arranged on the shell and communicated with the vacuum generator through a pipeline, and the other end of which extends along the first direction.

[0028] In addition, in order to solve the above problems, the present invention also proposes a sanitation vehicle, which is applied with the above-mentioned air duct filter cleaning device.

[0029] The technical solution of the present invention achieves automatic cleaning of the filter by spraying cleaning fluid onto the filter through the nozzle assembly. The drive assembly rotates the housing, and during this rotation, the adjustment member adjusts the nozzle assembly to consistently spray cleaning fluid in the first direction. Simultaneously, as the filter rotates with the housing, it slowly passes through the position where the nozzle assembly sprays cleaning fluid. After the filter rotates a certain angle, the entire filter surface is cleaned. This achieves automated cleaning of the filter without manual intervention, adapting to various vehicle models and unconstrained by space. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0031] Figure 1 This is a schematic structural diagram of the air duct filter cleaning device of the present invention when the housing has no filter;

[0032] Figure 2 This is a schematic structural diagram of the air duct filter cleaning device of the present invention when the housing has a filter;

[0033] Figure 3 Schematic diagram of the overall structure of the air duct filter cleaning device of the present invention;

[0034] Figure 4 Schematic diagram of the structure of the nozzle assembly in the air duct filter cleaning device of the present invention;

[0035] Figure 5 It is a schematic diagram of the direction of the air duct filter cleaning device of the present invention.

[0036] Description of Figure Numbers:

[0037]

[0038]

[0039] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0041] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0042] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referenced. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this disclosure, "plurality" means at least two, such as two or three, unless otherwise specifically defined.

[0043] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0044] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0045] The present invention proposes an air duct filter cleaning device, which includes a shell 10, a nozzle assembly 20, a filter 80, a drive assembly and an adjusting member 30. The nozzle assembly 20 can be rotatably set on the shell 10; the filter 80 is set on the shell 10; the shell 10 is set on the drive assembly, and the drive assembly is used to drive the shell 10 to rotate; the adjusting member 30 is set on the nozzle assembly 20; wherein, when the shell 10 rotates to drive the nozzle assembly 20 and the filter 80 to rotate, the adjusting member 30 is used to adjust the nozzle assembly 20 to rotate to a first direction and keep spraying cleaning liquid in the first direction, and when the filter 80 rotates, the moving path of the filter 80 intersects with the first direction.

[0046] Please refer to Figures 1 to 3 In a normal assembly situation, the nozzle assembly 20 is located above the filter screen 80 .

[0047] Please refer to Figure 5 The nozzle assembly 20 sprays the cleaning liquid in a first direction A, wherein the first direction A is set at a certain angle to the vertical direction. For example, the angle between the first direction A and the vertical direction is set between 30° and 60° to meet the requirement of cleaning the entire filter 80.

[0048] When the filter 80 is in the initial position, the mesh surface of the filter 80 is perpendicular to the vertical direction. Therefore, when cleaning, the nozzle assembly 20 sprays the cleaning liquid in the first direction to clean the stains on the filter 80 to one side, thereby avoiding secondary contamination of the filter 80.

[0049] The filter screen 80 is fixed on the housing 10 , and the nozzle assembly 20 is rotatably mounted on the housing 10 .

[0050] When the driving assembly drives the housing 10 to rotate, the filter screen 80 rotates along with the housing 10 .

[0051] It is understood that in order to ensure that the nozzle assembly 20 can continue to spray the cleaning liquid in the first direction during the rotation of the housing 10, the nozzle assembly 20 is adjusted by the adjusting member 30 to avoid deflection of the spraying liquid caused by the nozzle assembly 20 also rotating with the housing 10.

[0052] Please refer to Figure 5As an example, the drive assembly drives the housing 10 to rotate counterclockwise. Before cleaning, the position of the filter 80 and the angle of the first direction are adjusted so that the nozzle assembly 20 sprays the cleaning liquid exactly to the rightmost end of the filter 80. During cleaning, as the housing 10 rotates, the filter 80 rotates counterclockwise synchronously. The mesh surface of the filter 80 passes from left to right through the spraying position of the nozzle assembly 20, and finally passes through the leftmost end of the filter 80, thereby completing the cleaning of the entire filter 80.

[0053] As another embodiment, when the filter screen 80 is long, multiple nozzle assemblies 20 may be installed on the housing 10, with each nozzle assembly 20 responsible for cleaning a section of the filter screen 80, thereby completing the cleaning of the entire filter screen 80.

[0054] The technical solution of the present invention achieves automatic cleaning of the filter 80 by spraying cleaning fluid onto the filter 80 through the nozzle assembly 20. The drive assembly rotates the housing 10, and during this rotation, the adjustment member 30 adjusts the nozzle assembly 20 to consistently spray the cleaning fluid in the first direction. Simultaneously, as the filter 80 rotates with the housing 10, it slowly passes the position where the nozzle assembly 20 sprays the cleaning fluid. After the filter 80 rotates a certain angle, the entire surface of the filter 80 is completely cleaned. This automated cleaning of the filter 80 eliminates the need for manual intervention and is adaptable to various vehicle types, regardless of space constraints.

[0055] For further information, please refer to Figure 4 The nozzle assembly 20 includes a bracket, a nozzle 22 and a bearing 23. The bracket is arranged on the housing 10; one side of the nozzle 22 has a water inlet 221 for connecting to an external water supply pipe, and the other side has multiple water outlets 222; a bearing 23 is provided at each end of the bracket, the bracket is connected to the outer ring of the bearing 23, and the two ends of the nozzle 22 are respectively connected to the inner rings of the two bearings 23.

[0056] The bracket can be directly mounted on the bottom surface of the housing 10. The bracket can be formed by two mounting bases 21 in a quadrangular prism structure, which are arranged on two sides of the housing 10 opposite to each other.

[0057] The two ends of the nozzle 22 are respectively mounted on the bearings 23 of the two mounting seats 21. The rotation function of the nozzle 22 is achieved by the bearings 23.

[0058] The nozzle 22 is provided with a water inlet 221 on one side (e.g., the left side), which is connected to, for example, a water tank and a pump via a pipeline, thereby supplying water to the nozzle 22. The other side (e.g., the right side) of the nozzle 22 is provided with multiple water outlets 222. The number of water outlets 222 can be adjusted according to the size of the filter 80 to ensure that the cleaning liquid sprayed from the filter 80 covers the entire width of the filter 80.

[0059] A pneumatic valve is installed at the water inlet 221, and the controller can automatically start and stop the water supply from the nozzle 22. Simultaneously, by adjusting the opening of the pneumatic valve, the flow rate at the water outlet 222 can be controlled, further improving the compatibility of the device.

[0060] Furthermore, the adjusting member 30 is a counterweight plate, one end of which is connected to the nozzle 22 , and the other end of which extends radially away from the nozzle 22 along the nozzle 22 .

[0061] The counterweight plate may be mounted on the outer wall of the nozzle 22 and extend in the radial direction.

[0062] The weight plate has a large mass, so under the action of gravity, the weight plate falls down, thus always keeping the vertical state. By adjusting the angle between the water outlet 222 and the weight plate, for example, please refer to Figure 4 and Figure 5 The water outlet 222 is set at a position where the counterweight plate is deflected 30° to 60° to the right, thereby meeting the cleaning requirements of covering the entire filter 80.

[0063] In addition, the adjusting member 30 can also be realized by a stepping motor in conjunction with a sensor. The output shaft of the stepping motor is connected to the nozzle 22, thereby driving the nozzle 22 to rotate.

[0064] The current position of the water outlet 222 is detected by a sensor, and the controller is used to automatically control the rotation of the nozzle 22 by the stepping motor.

[0065] The cooperation between the stepper motor and the sensor can meet the installation requirements of the nozzle in more different directions, thereby improving the compatibility of the equipment.

[0066] Furthermore, the drive assembly includes a drive rod 50, one end of which is rotatably connected to the external support structure, and the other end is connected to the shell 10. When the drive rod 50 rotates, it drives the shell 10 to rotate around the hinge position of the drive rod 50.

[0067] In addition, to adapt to different vehicle models, the drive assembly may further include a housing 40. This housing 40 can be the outer shell of any component on the vehicle. One end of the drive rod 50 is connected to the housing 40, and the housing is directly disposed on top of the housing 40.

[0068] The driving rod 50 is hinged to the external support member, and drives the box body 40 and the shell 10 to rotate as a whole during the rotation process.

[0069] Furthermore, the air duct filter cleaning device also includes a vacuum generator and a suction pipe 60, and the vacuum generator is arranged on one side of the shell 10; one end of the suction pipe 60 is arranged on the shell 10 and connected to the vacuum generator through a pipeline, and the other end extends along the first direction.

[0070] In order to be able to promptly recycle the stains formed by cleaning, a suction pipe 60 may be further provided on one side of the nozzle assembly 20 so that the suction direction of the suction pipe 60 is also arranged in the first direction, thereby being able to recycle the generated stains as quickly as possible.

[0071] The suction pipe 60 can achieve negative pressure through a device such as a vacuum generator to complete the recovery of the stained liquid.

[0072] Optionally, the air duct filter cleaning device further includes a guide cover 70, which is disposed on the shell 10; a guide column is provided on the drive assembly, and the guide cover 70 is clamped on the guide column when the shell 10 and the drive assembly are assembled.

[0073] Through the guiding cooperation between the guide cover 70 and the guide column, the shell 10 and the box body 40 can be installed more quickly, thereby improving the convenience of operation.

[0074] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An air duct filter cleaning device, characterized in that: The air duct filter cleaning device comprises: Housing (10); a nozzle assembly (20), the nozzle assembly (20) being rotatably disposed on the housing (10); a filter screen (80), the filter screen (80) being arranged on the housing (10); A drive assembly, the housing (10) is arranged on the drive assembly, and the drive assembly is used to drive the housing (10) to rotate; an adjusting member (30), the adjusting member (30) being arranged on the nozzle assembly (20); When the housing (10) rotates to drive the nozzle assembly (20) and the filter (80) to rotate, the adjusting member (30) is used to adjust the nozzle assembly (20) to rotate to a first direction and keep spraying the cleaning liquid in the first direction, and when the filter (80) rotates, the moving path of the filter (80) intersects with the first direction; The nozzle assembly (20) comprises: a bracket, the bracket being arranged on the housing (10); A nozzle (22), wherein one side of the nozzle (22) has a water inlet (221) for connecting to an external water supply pipe, and the other side has a plurality of water outlets (222); A bearing (23), wherein each end of the bracket is provided with a bearing (23), the bracket is connected to the outer ring of the bearing (23), and the two ends of the nozzle (22) are respectively connected to the inner rings of the two bearings (23); The adjusting member (30) is a counterweight plate, one end of which is connected to the nozzle (22), and the other end of which extends radially away from the nozzle (22) along the nozzle (22); a vacuum generator, the vacuum generator being arranged on one side of the housing (10); A suction pipe (60), one end of which is arranged on the housing (10) and communicates with the vacuum generator through a pipeline, and the other end of which extends along the first direction.

2. The air duct filter cleaning device according to claim 1, characterized in that: The nozzle assembly (20) further comprises a pneumatic valve, which is arranged on the water inlet (221).

3. The air duct filter cleaning device according to claim 2, characterized in that: The included angle between the counterweight plate and the first direction is 30° to 60°.

4. The air duct filter cleaning device according to claim 1, characterized in that: The bracket comprises two mounting seats (21), the two mounting seats (21) are arranged oppositely on the housing (10), and each mounting seat (21) is correspondingly provided with one bearing (23).

5. The air duct filter cleaning device according to any one of claims 1 to 4, characterized in that: There are multiple nozzle assemblies (20), and the multiple nozzle assemblies (20) are arranged on the housing (10) at intervals.

6. The air duct filter cleaning device according to any one of claims 1 to 4, characterized in that: The drive assembly includes: A driving rod (50), one end of which is rotatably connected to an external supporting structure, and the other end of which is connected to the housing (10), wherein when the driving rod (50) rotates, the housing (10) is driven to rotate around a hinged position of the driving rod (50).

7. A sanitation vehicle, characterized in that: The sanitation vehicle is applied with the air duct filter cleaning device according to any one of claims 1 to 6.

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