Multi-stage filtering dust collection system for sanitation truck

Abstract

The utility model discloses a multi-stage filtering sanitation truck dust collection system which comprises a fan, a dust collection disc, a filtering bin and a dust box, a dust discharging opening is formed in the bottom of the filtering bin, the dust box is located at the dust discharging opening, the dust collection disc is communicated with a dust inlet of the filtering bin through a dust collection pipeline, and a multi-stage filtering assembly is arranged in the filtering bin; the multi-stage filter assembly comprises a first-stage filter assembly and a second-stage filter assembly, the first-stage filter assembly is located on one side of the dust inlet, the second-stage filter assembly is located above the first-stage filter assembly, and an exhaust inlet of the fan is communicated with the second-stage filter assembly; the multi-stage filter assembly is designed, the multi-stage filter effect is achieved, dust is prevented from being released into air as much as possible, in addition, the cleaning assembly is further arranged, part of the filter assemblies can be conveniently cleaned, the situation that dust is excessively accumulated is avoided, the good filter effect is kept, and the service life of the fan is prolonged. The maintenance cost and the replacement cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of dust collection and filtration, and particularly relates to a multi-stage filtration dust collection system for a sanitation vehicle. Background Art

[0002] In the dust collection systems of existing sanitation vehicles, single-stage or simple filtration structures are mostly adopted, which are difficult to effectively achieve the effect of dust filtration. The incompletely filtered dust may be released back into the air, causing secondary pollution. In addition, after long-term use, when some filtration structures accumulate a large amount of dust, it is difficult to clean, affecting the dust collection effect and the normal operation of the equipment. Therefore, it is necessary to design a dust collection system for a sanitation vehicle with a multi-stage filtration structure. Summary of the Utility Model

[0003] The utility model provides a multi-stage filtration dust collection system for a sanitation vehicle, which can at least solve the problems pointed out in the background art.

[0004] A multi-stage filtration dust collection system for a sanitation vehicle includes a fan, a dust suction disc, a filtration chamber and a dust box. The bottom of the filtration chamber has a dust discharge port, and the dust box is located at the dust discharge port. The dust suction disc is communicated with the dust inlet of the filtration chamber through a dust suction pipeline, and a multi-stage filtration component is arranged in the filtration chamber;

[0005] The multi-stage filtration component includes a primary filtration component and a secondary filtration component. Among them, the primary filtration component is located on one side of the dust inlet, the secondary filtration component is located above the primary filtration component, and the suction port of the fan is communicated with the secondary filtration component.

[0006] The primary filtration component includes a rotating shaft rotatably arranged in the filtration chamber, a plurality of filtration blades mounted on the rotating shaft, and a motor I for driving the rotating shaft to rotate;

[0007] Among them, a plurality of filtration blades are uniformly fixed on the rotating shaft along the circumferential direction.

[0008] The cross section of the filtration blade is C-shaped.

[0009] The secondary filtration component includes at least one cylindrical filter element installed in the filtration chamber, and the suction port of the fan is communicated with the internal space of the cylindrical filter element.

[0010] Preferably, the number of the filter elements is two, the internal spaces of the two filter elements are both communicated with a relay box, and the relay box is communicated with the suction port of the fan.

[0011] Preferably, the filter element is rotatably arranged in the filtration chamber, and a motor II for driving the filter element to rotate is further arranged on the filtration chamber.

[0012] Preferably, a cleaning component is further arranged in the filtration chamber, and the cleaning component includes a dust collecting hopper and a dust discharge pipe;

[0013] One end of the dust exhaust pipe is connected to the lower end of the dust collection hopper, and the other end penetrates through the filter chamber and is located above the dust box. The dust collection hopper is located on the lower side of the filter element. During the rotation of the filter element, the dust on the filter element is scraped into the dust collection hopper and enters the dust box along the dust exhaust pipe.

[0014] Preferably, it further includes a blocking component for blocking the port of the dust exhaust pipe. The blocking component includes a blocking shaft, a blocking plate, and a cylinder for driving the blocking plate to block the port of the dust exhaust pipe.

[0015] Wherein, the blocking shaft is rotatably arranged on the outer wall of the filter chamber or the sanitation vehicle, the blocking plate is connected to the blocking shaft, and the output end of the cylinder can abut against the blocking plate to make the blocking plate move towards the port of the dust exhaust pipe.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model is designed with a multi-stage filtering component to achieve a multi-stage filtering effect, and as much as possible to avoid the re-release of dust into the air. In addition, a cleaning component is also provided, which can facilitate the cleaning of some filtering components, avoid the excessive accumulation of dust, maintain a good filtering effect, improve the service life of the fan, and reduce the maintenance cost and replacement cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of one perspective of the present utility model;

[0018] Figure 2 is a schematic structural diagram of another perspective of the present utility model;

[0019] Figure 3 is a schematic structural diagram of the multi-stage filtering component of the present utility model;

[0020] Figure 4 is a sectional view of the present utility model;

[0021] Figure 5 is a schematic structural diagram of the blocking component of the present utility model.

[0022] Description of the reference numerals:

[0023] 1 - filter chamber, 2 - fan, 3 - dust suction disc, 4 - dust box, 5 - dust inlet, 6 - filter paddle, 7 - filter element, 8 - relay box, 9 - dust collection hopper, 10 - dust exhaust pipe, 11 - blocking shaft, 12 - blocking plate, 13 - cylinder, 14 - dustproof cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will describe in detail a specific embodiment of the present utility model with reference to the drawings, but it should be understood that the protection scope of the present utility model is not limited by the specific embodiment.

[0025] AsFigures 1 to 5 As shown in the figure, a multi-stage filtering dust suction system for a sanitation vehicle provided by an embodiment of the present utility model is installed on a sanitation vehicle. As shown in Figure 1 and Figure 2 shown, it includes a fan 2, a dust suction disc 3, a filter bin 1 and a dust box 4. The bottom of the filter bin 1 has a dust discharge port, and the dust box 4 is located at the dust discharge port. The top of the dust box 4 is open. The dust suction disc 3 is connected to the dust inlet 5 of the filter bin 1 through a dust suction pipe (not shown in the figure). To achieve the filtration of dust and garbage, a multi-stage filtering component is arranged in the filter bin 1;

[0026] The multi-stage filtering component includes a primary filtering component and a secondary filtering component. Among them, the primary filtering component is located on one side of the dust inlet 5, and the secondary filtering component is located above the primary filtering component. The suction port of the fan 2 is connected to the secondary filtering component;

[0027] As shown in Figure 3 and Figure 4 shown, the primary filtering component of this embodiment includes a rotating shaft rotatably arranged in the filter bin 1, several filter blades 6 installed on the rotating shaft, and a motor one for driving the rotating shaft to rotate; several filter blades 6 are uniformly fixed on the rotating shaft along the circumferential direction; the cross-section of the filter blade 6 is C-shaped, and the filter blade 6 is located at the dust discharge port and can send dust and garbage into the dust box 4;

[0028] To filter the trace dust escaping from the primary filtering component, a secondary filtering component is provided in this embodiment. As shown in Figure 3 and Figure 4 shown, Figure 3 part of the bin wall of the filter bin 1 is hidden in the figure. The secondary filtering component includes at least one cylindrical filter core 7 installed in the filter bin 1. The suction port of the fan 2 is connected to the internal space of the cylindrical filter core 7;

[0029] One end of the filter core 7 is closed, and the other end has an opening;

[0030] Taking two filter cores 7 as an example in this embodiment, the internal spaces of the two filter cores 7 are both connected to a relay box 8, and the relay box 8 is connected to the suction port of the fan 2. That is, the air enters the fan 2 after being filtered by the filter element 7, which can reduce the influence of dust on the service life of the fan 2;

[0031] Figure 4 In the figure, in order to show the structure of the filter core and facilitate seeing the connection between the filter core and the relay box, part of the filter core is cut;

[0032] The relay box 8 is fixed on the outside of the filter bin 1. In addition, a bracket for supporting the fan 2 can be installed on the sanitation vehicle frame;

[0033] In addition, in order to allow the filter element 7 to come into full contact with dust, the filter element 7 of this embodiment is rotatably installed and disposed in the filter chamber 1. Specifically, a bearing mount is installed on the filter chamber 1, and the filter element 7 is installed on the bearing mount. In addition, a second motor (not shown in the figure) for driving the filter element 7 to rotate is also provided on the filter chamber 1, and the output end of the second motor is connected to the filter element 7;

[0034] In order to clean the dust accumulated on the filter element 7 and maintain a good filtering effect, a cleaning component is also provided in the filter chamber 1. The cleaning component includes a dust collecting hopper 9 and a dust discharging pipe 10; one end of the dust discharging pipe 10 is connected to the lower end of the dust collecting hopper 9, and the other end penetrates through the filter chamber 1 and is located above the dust box 4. The dust collecting hopper 9 is located below the filter element 7, and one side edge of the dust collecting hopper 9 can be directly in contact with the filter element 7, or a brush or a scraper can be installed on one side of the dust collecting hopper 9. During the rotation of the filter element 7, the dust on the filter element 7 is scraped into the dust collecting hopper 9 and enters the dust box 4 along the dust discharging pipe 10;

[0035] The dust discharging pipe 10 of the cleaning component is directly communicated with the dust box 4. This design can prevent the dust filtered by the secondary filtering component from falling onto the primary filtering component. To prevent dust from escaping during dust discharging, a dust-proof cover 14 is fixedly installed at the rear side of the filter chamber 1, and the dust-proof cover 14 covers a part of the dust discharging pipe 10 and the dust box 4;

[0036] To prevent dust from reversely entering the filter chamber 1 from the dust box 4, this embodiment further includes a blocking component for blocking the port of the dust discharging pipe 10. The blocking component includes a blocking shaft 11, a blocking plate 12, and a cylinder 13 for driving the blocking plate 12 to block the port of the dust discharging pipe 10; when the number of filter elements 7 is multiple, the number of blocking components is the same as the number of filter elements 7. In addition, the blocking components can share a single blocking shaft 11, that is, multiple blocking plates 12 are all connected to the same blocking shaft 11, and the cylinder 13 can also be shared. When the cylinder 13 drives one of the blocking plates 12 to act, they act synchronously under the transmission of the blocking shaft 11;

[0037] To show the blocking component, Figure 5 the dust-proof cover 14 is hidden;

[0038] The blocking shaft 11 is rotatably disposed on the outer wall of the filter chamber 1 or on the sanitation vehicle, the blocking plate 12 is connected to the blocking shaft 11, and the output end of the cylinder 13 can abut against the blocking plate 12, so that the blocking plate 12 moves towards the port of the dust discharging pipe 10;

[0039] Specifically, a connecting rod can also be used between the output end of the cylinder 13 and the plugging plate 12. The two ends of the connecting rod are respectively hinged to the output end of the cylinder 13 and the plugging plate 12. The opening and closing of the plugging plate 12 can be realized by the telescopic movement of the output end of the cylinder 13. After storing a certain amount of dust, the plugging plate 12 is opened, and the dust is sent into the dust box 4, and then the plugging plate 12 is closed again.

[0040] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit and basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be construed as limiting the claimed invention.

[0041] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-stage filtration dust suction system for a sanitation vehicle, comprising a fan, a dust suction disc, a filtration bin and a dust box. The bottom of the filtration bin has a dust discharge port, and the dust box is located at the dust discharge port. It is characterized in that, The dust suction disc is communicated with the dust inlet of the filter chamber through a dust suction pipe, and a multi-stage filtering component is arranged in the filter chamber; The multi-stage filtering component includes a primary filtering component and a secondary filtering component. Among them, the primary filtering component is located on one side of the dust inlet, the secondary filtering component is located above the primary filtering component, and the suction port of the fan is communicated with the secondary filtering component.

2. The multi-stage filtering dust suction system for a sanitation vehicle according to claim 1, wherein The primary filtering component includes a rotating shaft rotatably arranged in the filter chamber, a plurality of filtering blades mounted on the rotating shaft, and a first motor for driving the rotating shaft to rotate; Among them, a plurality of filtering blades are uniformly fixed on the rotating shaft along the circumferential direction.

3. The multi-stage filtering dust suction system for a sanitation vehicle according to claim 2, wherein The cross-section of the filtering blade is C-shaped.

4. The multi-stage filtering dust suction system for a sanitation vehicle according to claim 1, characterized in that The secondary filtering component includes at least one cylindrical filter element installed in the filter chamber, and the suction port of the fan is communicated with the internal space of the cylindrical filter element.

5. The multi-stage filtering dust suction system of a sanitation vehicle according to claim 4, characterized in that, The number of the filter elements is two, the internal spaces of the two filter elements are both communicated with a relay box, and the relay box is communicated with the suction port of the fan.

6. The multi-stage filtering dust suction system for a sanitation vehicle according to claim 4, wherein, The filter element is rotatably arranged in the filter chamber, and a second motor for driving the filter element to rotate is further arranged on the filter chamber.

7. The multi-stage filtering dust suction system for a sanitation vehicle according to claim 6, wherein, A cleaning component is further arranged in the filter chamber, and the cleaning component includes a dust collecting hopper and a dust discharging pipe; Among them, one end of the dust discharging pipe is connected to the lower end of the dust collecting hopper, the other end penetrates through the filter chamber and is located above the dust box. The dust collecting hopper is located below the filter element. During the rotation of the filter element, the dust on the filter element is scraped into the dust collecting hopper and enters the dust box along the dust discharging pipe.

8. The multi-stage filtering dust suction system for a sanitation vehicle according to claim 7, wherein, It further includes a blocking component for blocking the port of the dust discharging pipe. The blocking component includes a blocking shaft, a blocking plate, and a cylinder for driving the blocking plate to block the port of the dust discharging pipe; Among them, the blocking shaft is rotatably arranged on the outer wall of the filter chamber or on the sanitation vehicle, the blocking plate is connected to the blocking shaft, and the output end of the cylinder can abut against the blocking plate to make the blocking plate move towards the port of the dust discharging pipe.

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