Filtering device of small sweeper

Abstract

The utility model discloses a filtering device of a small-sized sweeper, which comprises a filtering box shell provided with an inlet and an outlet; the filter cylinder assembly comprises a rotating cylinder, a cylindrical filter screen and a driving motor, the cylindrical filter screen is arranged on the rotating cylinder in a sleeving manner, and the driving motor is connected with the rotating cylinder through an adapter shaft; the filter screen assembly comprises a filter screen and a mounting plate, and the filter screen is arranged on the mounting plate; the quick-release assembly comprises a quick-release seat and an air outlet cylinder, the quick-release seat is mounted on the side surfaces of the rotating cylinder and the mounting plate, and the air outlet cylinder is mounted on the filter box shell and is provided with a connecting part which is clamped with the quick-release seat. The utility model has the beneficial effects that the quick disassembly and compact spatial arrangement of the cylindrical filter are realized, and the switching of the filtering structure in a dry and wet operation environment can be realized, so that the daily operation requirements of multiple working conditions and the convenience of product maintenance are met, and the operation quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of road sweepers, and particularly to a filtering device for a small road sweeper. Background Art

[0002] With the continuous iteration and popularization of environmental sanitation machinery technology, the emergence of small road sweepers has gradually filled the gaps in urban cleaning such as secondary roads and street corners. The filtering structures commonly equipped on the road sweepers currently on the market are mostly plate-type filtering systems using mechanical vibration and cylindrical filtering systems with rotary dust shaking or reverse blowing dust shaking. Among them, the latter has a relatively large filtering area, better dust shaking effect and is easier to maintain. However, due to its structure, the disassembly and assembly are easily restricted by the surrounding layout, and it is often necessary to integrally remove the power source side before the filter can be disassembled and replaced, which has a greater impact on the vehicle structure layout.

[0003] For example, the authorized utility model patent CN 205348073 U discloses a self-cleaning device for a road sweeper filter screen, which uses a cylindrical filter screen for filtering. When it needs to be replaced, the motor and the rotating mechanism need to be removed, which is time-consuming and laborious. Moreover, after the filtering system has been using the wet sweeping mode for a long time or cleaning a wet road surface, dust is easily adsorbed and adhered to the filter material and is not easy to remove, affecting the subsequent operation effect. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides a filtering device for a small road sweeper, which realizes the quick disassembly of the cylindrical filter and the compact space layout, and realizes the switching of the filtering structure in dry and wet working environments, thereby meeting the operation requirements of daily multiple working conditions and the convenience of product maintenance, and improving the operation quality.

[0005] Specifically, the utility model discloses a filtering device for a small road sweeper, comprising:

[0006] A filter box housing provided with an inlet and an outlet;

[0007] A filter cartridge assembly, comprising: a rotating cylinder, a cylindrical filter screen, and a driving motor. The cylindrical filter screen is sleeved on the rotating cylinder, and the driving motor is connected to the rotating cylinder through a transfer shaft;

[0008] A filter screen assembly, comprising: a filter screen and a mounting plate. The filter screen is arranged on the mounting plate;

[0009] A quick-disassembly component, comprising: a quick-disassembly seat and an air outlet cylinder. The quick-disassembly seat is installed on the sides of the rotating cylinder and the mounting plate, and the air outlet cylinder is installed on the filter box housing and is provided with a connecting part for snap-fitting with the quick-disassembly seat.

[0010] The advantages of adopting the above technical solution are as follows: it realizes the quick disassembly of the cylindrical filter and the compact space layout, and realizes the switching of the filtering structure in dry and wet working environments, thereby meeting the operation requirements of daily multiple working conditions and the convenience of product maintenance, and improving the operation quality.

[0011] Further, the quick-disassembly seat includes: a fixing plate for connecting with the rotating cylinder and the mounting plate. A fixing groove is arranged on the side of the fixing plate, a locking block is arranged in the fixing groove, the locking block is connected with a compression spring, and the connecting part is connected with the locking block.

[0012] The advantages of adopting the above technical solution are as follows: quick-disassembly seats are installed on both the rotating cylinder and the mounting plate. The locking block has a certain elasticity. After being fixed with the connecting part, due to the elastic effect, the connecting part and the locking block are pressed tightly, realizing the fixation and quick disassembly of the filter cartridge assembly and the filter screen assembly.

[0013] Further, an insertion plate is arranged on the air outlet cylinder. The insertion plate is inserted from the bottom of the fixing groove, the connecting part is arranged on the upper side of the insertion plate, a bearing seat is arranged on the filter box housing, and the air outlet cylinder is rotatably arranged.

[0014] The advantages of adopting the above technical solution are as follows: after the air outlet cylinder and the rotating cylinder are installed, the air outlet cylinder rotates with the rotating cylinder. The setting of the insertion plate facilitates installation, and at the same time ensures firm installation, and the air outlet cylinder and the rotating cylinder are closely matched.

[0015] Further, a docking flange is arranged on one side of the rotating cylinder away from the quick-disassembly seat. The adapter shaft is connected with the docking flange, and the docking flange is provided with a side opening for passing the adapter shaft.

[0016] The advantages of adopting the above technical solution are as follows: during installation, the adapter shaft is installed in cooperation with the opening on the docking flange. During disassembly, the docking flange is lifted upward, and the adapter shaft is disengaged from the opening, realizing quick disassembly and assembly.

[0017] Further, a runner assembly is arranged in the filter box housing, including a plurality of runners, and the runners are in contact with the rotating cylinder.

[0018] The advantages of adopting the above technical solution are as follows: in order to prevent the filter cartridge assembly from generating a large radial force on the drive motor and the adapter shaft under the action of gravity, runners with a supporting function are arranged, which can extend the service life of the drive motor, reduce the number of repairs of the drive motor, and at the same time reduce the friction between the rotating cylinder and the runners.

[0019] Further, limiting plates are arranged on both sides of the mounting plate, and limiting blocks matched with the limiting plates are arranged in the filter box housing.

[0020] The benefit of adopting the above technical solution is that when cleaning a wet road surface, a filter assembly is set up, and the filter assembly does not need to rotate. The setting of the limit plate cooperates with the limit block to prevent the filter assembly from rotating, thereby ensuring cleaning efficiency.

[0021] Furthermore, the filter box housing is divided into a filter chamber and a collecting chamber, a fan is arranged in the outlet, and the collecting chamber is communicated with the outlet.

[0022] The benefit of adopting the above technical solution is that the filter assembly and the filter cartridge assembly are arranged in the filter chamber, the fan is started, the filtered gas enters the collecting chamber, and then is discharged to the outside of the filter device through the outlet, so that the filter screen is evenly stressed and clogging is reduced.

[0023] Furthermore, the air outlet cylinder is connected to the filter chamber and the collecting chamber.

[0024] Furthermore, a scraper is provided on the side of the cylindrical filter.

[0025] The benefit of adopting the above technical solution is that the scraper can remove impurities attached to the filter cartridge assembly and realize the function of automatic dust vibration.

[0026] Furthermore, a shifting portion is provided on the locking shifting block.

[0027] The advantage of adopting the above technical solution is that when the quick release seat needs to be disassembled, it is only necessary to toggle the toggle part, at which time the compression spring is compressed, and the connecting part is removed from the locking toggle block, thereby realizing the quick release function. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required to be used in the embodiments or the description of the prior art will be briefly introduced below.

[0029] Figure 1 This is a schematic diagram of the overall installation of the filter cartridge of the small sweeper filter device of the utility model.

[0030] Figure 2 This is the main cross-sectional view of the utility model

[0031] Figure 3 This is a side view of the utility model

[0032] Figure 4 This is the structure diagram of the utility model quick release seat

[0033] Figure 5 This is the installation and disassembly diagram of the drive motor adapter shaft of the utility model

[0034] Figure 6 This is the installation and splitting diagram of the utility model filter screen

[0035] Figure 7 This is the front elevation sectional view of the filter assembly installation of the present utility model.

[0036] Figure 8 This is the side elevation sectional view of the filter assembly installation of the present utility model.

[0037] The reference numerals involved in the attached drawings are as follows:

[0038] Filter box housing 1; inlet 11; outlet 12; bearing seat 13; filtration chamber 14; manifold chamber 15; limit block 16; filter cartridge assembly 2; rotating cylinder 21; cylindrical filter screen 22; drive motor 23; adapter shaft 24; docking flange 25; filter assembly 3; filter screen 31; mounting plate 32; limit plate 33; quick-release assembly 4; quick-release base 41; fixing plate 411; air outlet cylinder 42; connecting portion 421; locking toggle 43; toggling portion 431; insertion plate 44; runner 5; fan 6; scraper 7. Specific embodiments

[0039] The present utility model will be further described in detail below with reference to the attached drawings.

[0040] As Figure 1-8 shown, the present utility model discloses a filtration device for a small road sweeper, comprising:

[0041] A filter box housing 1, provided with an inlet 11 and an outlet 12, and the inlet 11 is arranged on the lower side of the filter box housing 1;

[0042] A filter cartridge assembly 2, comprising: a rotating cylinder 21, a cylindrical filter screen 22, a drive motor 23, the cylindrical filter screen 22 is sleeved on the rotating cylinder 21, and the drive motor 23 is connected to the rotating cylinder 21 through an adapter shaft 24;

[0043] A filter assembly 3, comprising: a filter screen 31 and a mounting plate 32, the filter screen 31 is arranged on the mounting plate 32;

[0044] A quick-release assembly 4, comprising: a quick-release base 41 and an air outlet cylinder 42, the quick-release base 41 is installed on the sides of the rotating cylinder 21 and the mounting plate 32, and the air outlet cylinder 42 is installed on the filter box housing 1, and is provided with a connecting portion 421 for snap-connecting with the quick-release base 41.

[0045] When cleaning a clean and dry road surface, the filter cartridge assembly 2 is installed in the filter box housing 1. When using the wet sweeping mode or cleaning a wet road surface, the filter cartridge assembly 2 is removed and replaced with the filter assembly 3. Due to the setting of the quick-release assembly 4, the disassembly is fast, realizing the quick release of the cartridge filter and the compact space layout, and the switching of the filtration structure in dry and wet working environments can be realized, thereby meeting the operation requirements of daily multiple working conditions and the convenience of product maintenance, and improving the operation quality.

[0046] In some embodiments, the quick-release seat 41 includes: a fixing plate 411, which is connected to the rotating cylinder 21 and the mounting plate 32 by screws, a fixing groove is provided on the side of the fixing plate 411, a through hole is provided in the middle of the fixing groove, a locking block 43 is provided in the fixing groove, the locking block 43 is connected to a compression spring, a baffle is provided on the outside of the compression spring, and is provided on the side of the locking block 43 so that the locking block 43 can move, a groove is provided on the locking block 43, and a protrusion that cooperates with the groove is provided on the connecting portion 421, and the protrusion is extended into the groove for fixing during installation. A toggle portion 431 is provided on the locking block 43, and when the quick-release seat 41 needs to be disassembled, it is only necessary to toggle the toggle portion 431, at which time the compression spring is compressed, and the connecting portion 421 is removed from the locking block 43, thereby realizing the quick-release function.

[0047] The benefit of adopting the above technical solution is that both the rotating cylinder 21 and the mounting plate 32 are installed with a quick-release seat 41, and the locking block 43 has a certain elasticity. After being fixed with the connecting part 421, the connecting part 421 and the locking block 43 are pressed tightly due to the elastic effect, thereby realizing the quick release of the filter cylinder assembly 2 and the filter screen assembly 3.

[0048] In some embodiments, the air outlet 42 is provided with an insert plate 44, and the insert plate 44 is inserted from the bottom of the fixing groove. The connecting portion 421 is arranged on the upper side of the insert plate 44. When the insert plate 44 and the fixing groove are installed in place, the connecting portion 421 is connected to the locking block 43, and the air outlet 42 corresponds to the through hole on the fixing groove. The filter box housing 1 is provided with a bearing seat 13, and a bearing is arranged in the bearing seat 13, and the air outlet 42 is arranged in the bearing.

[0049] The advantage of adopting the above technical solution is that after the air outlet cylinder 42 and the rotating cylinder 21 are installed, the air outlet cylinder 42 rotates with the rotating cylinder 21, and the setting of the insert plate 44 facilitates installation while ensuring that the installation is tight, and the air outlet cylinder 42 and the rotating cylinder 21 fit tightly.

[0050] Furthermore, a docking flange 25 is provided on one side of the rotating cylinder 21 away from the quick-release seat 41, and the adapter shaft 24 is connected to the output end of the driving motor 23. The adapter shaft 24 is connected to the docking flange 25 through a key, and the docking flange 25 is provided with a side opening for passing the adapter shaft 24. During installation, the adapter shaft 24 is installed in cooperation with the adapter shaft 24 through the opening on the docking flange 25, and during disassembly, the docking flange 25 is lifted upward, and the adapter shaft 24 is removed from the opening, thereby realizing quick disassembly and assembly.

[0051] In some embodiments, a rotor assembly is disposed in the filter box housing 1, including multiple rotors 5, the rotors 5 are disposed in contact with the rotating drum 21, the rotors 5 are symmetrically disposed on the lower side of the rotating drum 21, and the rotor shafts are fixed to the side of the filter housing.

[0052] The advantages of adopting the above technical solution are as follows. To prevent the filter cartridge assembly 2 from generating a large radial force on the drive motor 23 and the adapter shaft 24 under the action of gravity, a runner 5 with a supporting function is provided, which can extend the service life of the drive motor 23, reduce the maintenance frequency of the drive motor 23, and at the same time reduce the friction between the rotating cylinder 21 and the runner 5.

[0053] In some embodiments, limiting plates 33 are provided on both sides of the mounting plate 32, and limiting blocks 16 cooperating with the limiting plates 33 are provided in the filter box housing 1. After the mounting plate 32 is installed in place, the filter net 31 corresponds to the air outlet cylinder 42.

[0054] The advantages of adopting the above technical solution are as follows. When cleaning a wet road surface, a filter screen assembly 3 is provided. The filter screen assembly 3 does not need to rotate, and the setting of the limiting plate 33 cooperates with the limiting block 16 to prevent the filter screen assembly 3 from rotating, ensuring the cleaning efficiency.

[0055] Further, the filter box housing 1 is divided into a filtering chamber 14 and a flow collecting chamber 15. The bottom of the filtering chamber 14 is an opening to form an inlet 11, a blower 6 is provided in the outlet 12, and the side of the flow collecting chamber 15 is communicated with the outlet 12. The filter screen assembly 3 and the filter cartridge assembly 2 are arranged in the filtering chamber 14. When the blower 6 is started, the filtered gas enters the flow collecting chamber 15 and then is discharged out of the filtering device through the outlet 12. The air outlet cylinder 42 communicates the filtering chamber 14 and the flow collecting chamber 15.

[0056] In some embodiments, a scraper 7 is provided on the side of the cylindrical filter screen 22. The scraper 7 is arranged along the length of the cylindrical filter screen 22 and contacts the surface of the cylindrical filter screen 22. The scraper 7 is connected with a support plate. The upper side of the support plate is connected with the scraper 7, and the lower side is installed on the inner side of the filtering chamber 14.

[0057] The advantages of adopting the above technical solution are as follows. The setting of the scraper 7 can remove the impurities attached to the filter cartridge assembly 2 and realize the function of automatic dust shaking.

[0058] Installation and disassembly process of the filter screen assembly 3:

[0059] When installing the filter screen assembly 3, the direction is vertical assembly from top to bottom. There is an opening below the docking flange 25 for cooperating with the adapter shaft 24 for installation. The quick-release seat 41 on the other side contains a locking dial block 43 that can move with the spring expansion and contraction. Its shape matches the connecting part 421 on the air outlet cylinder 42. During installation, the locking dial block 43 moves horizontally under the pressure generated by the assembly, thereby compressing the spring. After the air outlet cylinder 42 is completely docked, the locking dial block 43 resets under the action of the spring force, connecting the filter cartridge assembly 2 and the air outlet cylinder 42 tightly. The sealing of the contact plane is realized through the wedge-shaped groove mating surfaces of the two.

[0060] When the filter cartridge assembly 2 is disassembled, the filter cartridge assembly 2 is taken out vertically by moving the moving portion 431 on the locking block 43. The adapter shaft 24 on the other side is directly removed from the opening on the side of the docking flange 25.

[0061] During the dry-wet switching process, after the filter cartridge assembly 2 is disassembled, the quick-release seat 41 on the filter assembly 3 is connected to the air outlet 42, the fan 6 is operated, the filter 31 filters impurities, and the filtered gas passes through the collecting chamber 15 and is discharged through the outlet 12. It meets the dry-wet switching operation, contains multiple quick-release filters, meets the daily multi-operating conditions and the convenience of product maintenance, and improves the operation quality.

[0062] For ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the utility model, which all fall within the protection scope of the utility model.

Claims

1. A small sweeper filtering device, characterized in that: include: A filter box housing (1) is provided with an inlet (11) and an outlet (12); The filter cartridge assembly (2) comprises: a rotating cylinder (21), a cylindrical filter screen (22), and a driving motor (23), wherein the cylindrical filter screen (22) is sleeved on the rotating cylinder (21), and the driving motor (23) is connected to the rotating cylinder (21) via a transfer shaft (24); A filter assembly (3) comprises: a filter (31) and a mounting plate (32), wherein the filter (31) is arranged on the mounting plate (32); The quick-release assembly (4) comprises a quick-release seat (41) and an air outlet tube (42), wherein the quick-release seat (41) is mounted on the sides of the rotating tube (21) and the mounting plate (32), and the air outlet tube (42) is mounted on the filter box housing (1) and is provided with a connecting portion (421) for clamping with the quick-release seat (41).

2. The small sweeper vehicle filtering device according to claim 1, characterized in that: The quick-release seat (41) comprises: a fixing plate (411) for connecting with the rotating cylinder (21) and the mounting plate (32); a fixing groove is arranged on the side of the fixing plate (411); a locking block (43) is arranged in the fixing groove; the locking block (43) is connected with a compression spring; and the connecting portion (421) is installed and connected with the locking block (43).

3. The small sweeper vehicle filtering device according to claim 2, characterized in that: The air outlet cylinder (42) is provided with an insertion plate (44), the insertion plate (44) is inserted from the bottom of the fixing groove, the connecting portion (421) is provided on the upper side of the insertion plate (44), the filter box housing (1) is provided with a bearing seat (13), and the air outlet cylinder (42) is rotatably arranged.

4. The small sweeper vehicle filtering device according to claim 1, characterized in that: A docking flange (25) is provided on the side of the rotating cylinder (21) away from the quick-release seat (41), the adapter shaft (24) is connected to the docking flange (25), and the docking flange (25) is provided with a side opening for passing the adapter shaft (24).

5. The small sweeper vehicle filtering device according to claim 1, characterized in that: A rotor assembly is arranged inside the filter box housing (1), comprising a plurality of rotors (5), and the rotors (5) are arranged in contact with the rotating drum (21).

6. The small sweeper vehicle filtering device according to claim 1, characterized in that: Limiting plates (33) are arranged on both sides of the mounting plate (32), and limiting blocks (16) cooperating with the limiting plates (33) are arranged in the filter box housing (1).

7. The small sweeper vehicle filtering device according to claim 1, characterized in that: The filter box housing (1) is divided into a filter chamber (14) and a collecting chamber (15), a fan (6) is arranged in the outlet (12), and the collecting chamber (15) is communicated with the outlet (12).

8. The small-sized sweeper vehicle filtering device according to claim 7, characterized in that: The air outlet cylinder (42) is in communication with the filter chamber (14) and the collecting chamber (15).

9. The small sweeper vehicle filtering device according to claim 1, characterized in that: A scraper (7) is provided on the side of the cylindrical filter screen (22).

10. The small-sized sweeper vehicle filtering device according to claim 3, characterized in that: The locking shift block (43) is provided with a shifting portion (431).

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