Carriage structure suitable for sanitation vehicle

Abstract

The compartment structure comprises a compartment body, the interior space of the compartment body is divided into a dust collecting area and a filtering area through a partition plate, a filtering device is arranged in the filtering area, the dust collecting area is connected with a suction cup through a dust suction pipe, and an upper air channel and a lower air channel are sequentially arranged on the top of the filtering area from top to bottom. The left ends and the right ends of the upper air channel and the lower air channel are communicated with the air channel and the dust collecting area respectively, an air door is movably arranged in the lower air channel, an air cylinder is installed on the partition plate and movably connected with the air door, and an air outlet communicated with the filtering area is formed in the position, located on the right side of the air door, of the lower air channel. The air duct is connected with a fan, and the outlet end of the fan is connected with an exhaust outlet. According to the utility model, only one air door is arranged, so that the structure is simpler, the maintenance is facilitated, and the manufacturing cost is lower.

Description

Technical Field

[0001] This utility model relates to the field of sanitation vehicle technology, specifically to a vehicle body structure suitable for sanitation vehicles. Background Technology

[0002] Currently, most existing vacuum cleaners can operate in both wet and dry modes. For example, patent CN202247758U describes a design with a channel 5, a rear channel system 7, and a front channel door system 8. The connection is as follows: one end of channel 5 connects to the fan, across the filter chamber 4, and the other end connects to the waste chamber 2. In this design, both wet and dry dust-laden airflows share channel 5. During wet sweeping, moisture accumulates in channel 5. When switching to dry sweeping mode, some dust enters and accumulates in the wet-sweeping channel 5, causing secondary dust generation and pollution during subsequent wet sweeping. Furthermore, according to this design, at least one door system connecting the filter chamber 4 to the waste chamber 2 is required. Adding the rear channel system 7 and the front channel door system 8 at both ends of channel 5, the structure is complex, hindering maintenance and increasing costs. Summary of the Invention

[0003] The present invention aims to address the aforementioned shortcomings by providing a vehicle body structure suitable for sanitation vehicles. This structure comprises a body, within which an internal space is divided into a dust collection area and a filtration area by a partition. A filtration device is installed in the filtration area. The dust collection area is connected to a suction cup via a suction pipe. An upper air duct and a lower air duct are sequentially arranged from top to bottom on the top of the filtration area. The left and right ends of the upper and lower air ducts are respectively connected to the air duct and the dust collection area. An air damper is movably installed in the lower air duct. A cylinder is installed on the partition and is movably connected to the air damper. An air outlet connected to the filtration area is located to the right of the air damper in the lower air duct. The filtration area is connected to the upper air duct, and the air duct is connected to a fan. The outlet end of the fan is connected to an exhaust vent.

[0004] To improve the sealing effect, the damper can completely cover the air outlet when the cylinder contracts.

[0005] In order to better filter out larger particles of debris in the airflow, filter screens are also installed at the connection between the upper and lower air ducts and the dust collection area.

[0006] This utility model has the following beneficial effects:

[0007] 1. This utility model uses different air ducts for dry sweeping and wet sweeping. The upper air duct is used for dry sweeping and the lower air duct is used for wet sweeping, which avoids the previous phenomenon of sharing air ducts and also avoids the secondary dust generation caused by sharing air ducts.

[0008] 2. This utility model only has one damper, which makes the structure simpler, easier to maintain and repair, and has a lower manufacturing cost. Attached Figure Description

[0009] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is a diagram showing the gas flow direction for both dry and wet operating modes.

[0012] In the diagram: 1. Air damper; 2. Lower air duct; 3. Partition plate; 4. Filter screen; 5. Body; 6. Suction pipe; 7. Suction cup; 8. Cylinder; 9. Filter device; 10. Air duct; 11. Fan; 12. Exhaust outlet; 13. Upper air duct; 14. Filtering area; 15. Dust collection area; 16. Air outlet. Detailed Implementation

[0013] The following drawings will disclose several embodiments of this utility model. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these physical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0014] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0015] like Figures 1 to 2As shown, a vehicle body structure suitable for sanitation vehicles includes a body 5. The interior space of the body 5 is divided into a dust collection area 15 and a filtration area 14 by a partition 3. A filtration device 9 is installed in the filtration area. The dust collection area 15 is connected to a suction cup 7 via a suction pipe 6. An upper air duct 13 and a lower air duct 2 are arranged sequentially from top to bottom on the top of the filtration area 14. The left and right ends of the upper air duct 13 and the lower air duct 2 are connected to the air duct 10 and the dust collection area 15, respectively. An air damper 1 is movably installed in the lower air duct 2. A cylinder 8 is installed on the partition 3 and is movably connected to the air damper 1. An air outlet 16 connected to the filtration area 14 is located on the right side of the air damper 1 in the lower air duct 2. The filtration area 14 is connected to the upper air duct 13. The air duct 10 is connected to a fan 11. The outlet end of the fan 11 is connected to an exhaust port 12.

[0016] Furthermore, when the cylinder 1 retracts, the damper 1 can completely cover the air outlet 16.

[0017] Furthermore, a filter screen 4 is also provided at the connection between the upper air duct 13 and the lower air duct 2 and the dust collection area 15.

[0018] When the dry sweeping mode is activated: the hydraulic cylinder of damper 1 extends and retracts, closing the lower air duct 2 and simultaneously opening the air outlet 16 on the lower air duct 2. Cylinder 8 extends, damper 1 is pushed up, and air outlet 16 connects with the filter area. Since there is no water on the ground, the debris sucked up by suction cup 7 consists of dust and large pieces of debris. However, as the blower 11 operates, the compartment 5 becomes under negative pressure, and the debris in the air is sucked towards the exhaust vent 12. Due to the filter screen 4, large debris is blocked outside and falls freely into the dust collection area 15 under the influence of gravity. However, the dust is sucked into the filter area. Because the filter area is equipped with a filter device 9, the dust passes through the filter device 6 as the blower operates, and the remaining clean air is sucked into the upper air duct 13. The filtered air is then discharged outside the vehicle through the blower 11 via the upper air duct 13.

[0019] When the wet sweeping mode is activated: cylinder 8 retracts, damper 1 closes air outlet 16, and lower air duct 2 opens. During wet sweeping mode, a large amount of water and debris enters the chamber through suction cup 7. However, as the blower operates, the chamber becomes under negative pressure, causing airborne debris to be sucked towards exhaust vent 12. Because of the filter screen 4, larger debris is blocked outside and falls freely into dust collection area 15 under gravity. The filtered air is then discharged outside the vehicle through lower air duct 2 and blower 1.

[0020] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A vehicle body structure suitable for sanitation vehicles, comprising a body (5), wherein the interior space of the body (5) is divided into a dust collection area (15) and a filtration area (14) by a partition (3), a filtration device (9) is provided in the filtration area, and the dust collection area (15) is connected to a suction cup (7) by a suction pipe (6), characterized in that: The top of the filtration zone (14) is provided with an upper air duct (13) and a lower air duct (2) arranged sequentially from top to bottom. The left and right ends of the upper air duct (13) and the lower air duct (2) are connected to the air duct (10) and the dust collection zone (15) respectively. An air damper (1) is movably arranged in the lower air duct (2). A cylinder (8) is installed on the partition (3). The cylinder (8) is movably connected to the air damper (1). An air outlet (16) connected to the filtration zone (14) is provided on the right side of the air damper (1) in the lower air duct (2). The filtration zone (14) is connected to the upper air duct (13). The air duct (10) is connected to the fan (11). The outlet end of the fan (11) is connected to the exhaust port (12).

2. The vehicle body structure suitable for sanitation vehicles according to claim 1, characterized in that: When the cylinder (8) contracts, the damper (1) can completely cover the air outlet (16).

3. The vehicle body structure suitable for sanitation vehicles according to claim 1, characterized in that: A filter screen (4) is also provided at the connection between the upper air duct (13) and the lower air duct (2) and the dust collection area (15).

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