CN204723844U - Filter device and cleaning vehicle including the filter device - Google Patents

Abstract

The utility model provides a filter device reaches cleaning cart including this filter device. The filter device has the water inlet that supplies the fluid inflow and the delivery port that supplies the fluid outflow, and the filter device includes filter body, and filter body includes: a housing; the filter element is provided with an accommodating cavity and is arranged in the shell to filter fluid flowing into the shell, wherein the water outlet is communicated with the accommodating cavity, and the water inlet is communicated with the interior of the shell; the filter device also includes a pressure purge portion having a jet port disposed within the receiving chamber and jetting pressurized fluid toward the filter element sidewall. According to the utility model discloses a filter device can effectively erode the impurity that adheres to on the filter core surface, the washing maintenance work of the filter core of being convenient for.

Description

Filter device and cleaning vehicle including the filter device

technical field

The utility model relates to the field of cleaning vehicles, in particular to a filter device and a cleaning vehicle comprising the filter device.

Background technique

In the water system that uses high-pressure water pumps to pressurize the cleaning work, before the high-pressure water pumps enter the water, a filter device that processes and filters the water according to the requirements of the water pumps is installed.

At present, filter devices are installed on sanitation vehicles and cleaning vehicles. The filter element of the filter device is equipped with a mesh filter with a mesh number of 120 to 200 meshes. The clear water filtered by the filter device is pressurized by a high-pressure water pump. , can realize the cleaning operation of the ground.

Fig. 1 shows a schematic front view of a filter device in the prior art. As shown in Figure 1, the filter device has a water inlet 11' for fluid to flow in and a water outlet 12' for fluid to flow out, the filter device includes a filter body 1', and the filter body 1' includes a housing 13', a filter element 14 ' and the connection seat 15' that is detachably connected to the shell 13' and the filter element 14' respectively. Wherein, the casing 13' is locked on the connecting seat 15' through the locking nut 5', and the filter element 14' is arranged inside the casing 13' to filter the fluid flowing into the casing 13', wherein the water outlet 12' and the filter element 14' The interior communicates, and the water inlet 11' communicates with the interior of the casing 13'.

After the filter device has been working for a period of time, if it is found that there is impurity in the filter device, the control valve 18' arranged at the sewage outlet 19' can be opened to remove the sewage, but the filter element 14' is blocked by impurities such as the filter element 14 When the filter screen on the periphery affects the filtered water, the locking nut 5' can only be loosened, the shell 13' is disassembled, and the filter element 14' is removed for cleaning. When the water quality is poor, the workload of maintaining the filter device is large, and it is inconvenient to use.

Utility model content

The main purpose of the utility model is to provide a filter device and a cleaning vehicle including the filter device, so as to solve the problem in the prior art that it is difficult to maintain the filter element of the filter device.

In order to achieve the above object, according to one aspect of the present invention, a filter device is provided, which has a water inlet for fluid inflow and a water outlet for fluid outflow, the filter device includes a filter body, and the filter body includes: a housing The filter element has a housing cavity, and the filter core is arranged inside the shell to filter the fluid flowing into the shell, wherein the water outlet communicates with the housing cavity, and the water inlet communicates with the inside of the shell; the filter device also includes a pressure cleaning part, which is used for pressure cleaning The part has an injection port arranged in the housing chamber and injects pressurized fluid toward the side wall of the filter element.

Further, the pressurized cleaning part includes a conveying pipe arranged along the axial direction of the filter element, and the injection port injects pressurized fluid radially outward toward the side wall of the filter element.

Further, the pressurized cleaning part also includes one or more groups of spray pipes, the spray pipe set includes one or more spray pipes communicating with the conveying pipe, and the end of the spray pipe far away from the conveying pipe forms a spray port.

Further, the injection pipe group includes a plurality of injection pipes, and the plurality of injection pipes are arranged at intervals along the axial direction of the delivery pipe.

Further, the pressurized cleaning part includes a plurality of injection pipe groups arranged at intervals along the circumference of the conveying pipeline.

Further, the filter device further includes: a first fluid inlet, communicated with the inside of the pressurized cleaning part, for the pressurized fluid to flow in; a first fluid outlet, communicated with the inside of the casing, for the pressurized fluid to flow out.

Further, the filter device also includes: a first control valve, arranged at the first fluid inlet to control the on-off of the first fluid inlet; a second control valve, arranged at the first fluid outlet to control the on-off of the first fluid outlet .

Further, the filter device also includes a connection seat connected to the shell and the filter element respectively, the connection seat has a fluid inlet channel and a fluid outlet channel, the end of the fluid inlet channel away from the filter body forms the first fluid inlet, and the end of the fluid outlet channel away from the filter body One end of the filter body forms a first fluid outlet.

Further, the water inlet and the water outlet are arranged at intervals along the circumference of the filter body, the first fluid inlet and the first fluid outlet are arranged at intervals along the circumference of the filter body, and both the first fluid inlet and the first fluid outlet are arranged at the inlet The side of the water port and the water outlet away from the filter body.

According to another aspect of the present utility model, a cleaning vehicle is provided, including a chassis and a filter device disposed under the chassis, the filter device being the aforementioned filter device.

Applying the technical solution of the utility model, since the pressurized cleaning part of the filter device has an injection port which is arranged in the accommodation chamber and sprays the pressurized fluid toward the side wall of the filter element, the flow direction of the pressurized fluid ejected from the injection port is consistent with the filtration The flow direction of the fluid during the filtering operation of the filter device is opposite, so that the impurities attached to the surface of the filter element can be effectively washed away, and the cleaning and maintenance of the filter element is facilitated.

Description of drawings

The accompanying drawings constituting a part of this application are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 shows the schematic diagram of the front view structure of the filter device of the prior art;

Fig. 2 shows a schematic cross-sectional structural view of an embodiment of a filter device according to the present invention;

Fig. 3 shows a top view structural schematic view of an embodiment of the filter device according to the present utility model;

Fig. 4 shows the schematic cross-sectional structural representation of the filter device according to the present utility model in a maintenance (cleaning) state; and

Fig. 5 shows a schematic diagram of the front structure of the cleaning vehicle according to the present invention.

Wherein, the above-mentioned accompanying drawings include the following reference signs:

1. Filter body; 11. Water inlet; 12. Water outlet; 13. Shell; 14. Filter element; 141. Accommodating cavity; 2. Pressure cleaning part; 15. Connecting seat; 16. Fluid inlet channel; 16a. 1. Fluid inlet; 17. Fluid outlet channel; 17a. First fluid outlet; 18. Sewage control valve; 19. Sewage outlet; 2a. Injection port; 4. Second control valve; 5. Lock nut; 6. Seal ring; 100. Filter device; 200. Chassis; 201. Water pump inlet pipe; 202. Suction nozzle; 203. Auxiliary engine; 204. Water pump; Fan; 206, dustbin; 207, water storage tank; 208, suction pipe; 209, nozzle; 300, sweeping plate; 301, water pump outlet pipe.

Detailed ways

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

As shown in Figure 2, the utility model provides a filter device. The filter device has a water inlet 11 for fluid inflow and a water outlet 12 for fluid outflow, the filter device includes a filter body 1 , and the filter body 1 includes a housing 13 and a filter core 14 . Wherein, the filter core 14 has a housing chamber 141, the filter core 14 is arranged inside the housing 13 to filter the fluid flowing into the housing 13, the water outlet 12 communicates with the housing chamber 141, and the water inlet 11 communicates with the inside of the housing 13; the filter device also includes a The pressure cleaning part 2 has an injection port 2 a disposed in the accommodation chamber 141 and injecting a pressurized fluid radially outward toward the side wall of the filter element 14 .

Specifically, the filter device further includes a connecting base 15 , a sealing ring 6 and a locking nut 5 connected to the housing 13 and the filter element 14 respectively. The connecting seat 15 is provided with a water inlet channel communicating with the water inlet 11 and a water outlet channel communicating with the water outlet 12. The central axis of the filter element 14 coincides with the central axis of the pressurized cleaning part 2; the filter element 14 is screwed to the connecting seat 15 Above, the outer surface of the filter element 14 is provided with a filter screen with a mesh number of 100 to 200 meshes so that the water to be filtered flows into the filter element 14 through the filter screen; the outer surface of the filter element 14 is provided with a shell 13, and the shell 13 is pressed by the lock nut 5 Tightly on the sealing ring 6 , the bottom of the housing 13 is provided with a sewage outlet 19 and a sewage control valve 18 arranged at the sewage outlet 19 to control the on-off of the sewage outlet 19 .

When the filter device is working, the water to be filtered enters from the water inlet 11 and enters the housing cavity 141 of the filter element 14 through the filter screen arranged on the outer surface of the filter core 14. The filter screen can keep impurities in the water larger than the filter holes in the shell In the gap between 13 and the outer periphery of the filter core 14, the filtered water flows out through the water outlet 12.

In the above arrangement, the flow direction of the pressurized fluid ejected from the injection port 2a is opposite to the flow direction of the water flow when the filter device performs the filtering operation. The water flow inside flows from the accommodating cavity 141 to the inside of the housing 13, and the flow direction of the water flow is opposite to that of the water flow flowing into the housing 13 from the water inlet 11, so that the impurities attached to the surface of the filter element 14 can be effectively washed away, facilitating the filter element Cleaning and maintenance work.

Specifically, as shown in FIG. 2 and FIG. 4 , in the embodiment of the present invention, the pressurized cleaning part 2 includes a delivery pipe 21 arranged along the axial direction of the filter element 14 . The pressurized cleaning part 2 also includes multiple groups of spray pipe groups, and the multiple groups of spray pipe groups are arranged at intervals along the circumference of the delivery pipeline 21; An end remote from the delivery pipe 21 is formed with an injection port 2a.

As shown in FIG. 2 , in the embodiment of the present invention, the central axis of the injection pipe 22 is arranged perpendicular to the central axis of the delivery pipe 21 . Certainly, in an embodiment not shown in the present invention, the included angle between the central axis of the injection pipe 22 and the central axis of the delivery pipe 21 can also be set to be greater than 0° and less than 90°. In a word, as long as the pressurized fluid sprayed from the spray port 2 a of the spray pipe 22 can spray radially outward to the filter screen on the side wall of the filter element 14 .

Specifically, a plurality of injection pipes 22 are arranged at intervals along the axial direction of the delivery pipe 21 .

Through the above arrangement, a plurality of injection ports 2a can be formed radially outward in the entire axial direction of the delivery pipe 21, so that the filter screen of the entire filter core 14 can be sprayed better, and the cleaning and maintenance work of the filter core 14 can be made easier. Convenient and fast.

As shown in Figure 2 and Figure 4, in the embodiment of the utility model, the filter device also includes a first fluid inlet 16a communicating with the inside of the pressurized cleaning part 2 for pressurized fluid to flow in and communicating with the inside of the housing 13 for The supply pressurized fluid flows out of the first fluid outlet 17a.

In order to facilitate the control of the inflow and outflow of pressurized fluid, the filter device also includes a first control valve 3 and a second control valve 4 . Wherein, the first control valve 3 is arranged at the first fluid inlet 16a to control the on-off of the first fluid inlet 16a; the second control valve 4 is arranged at the first fluid outlet 17a to control the on-off of the first fluid outlet 17a.

As shown in Figure 2, in the embodiment of the utility model, the connecting seat 15 has a fluid inlet channel 16 and a fluid outlet channel 17, and the end of the fluid inlet channel 16 away from the filter body 1 forms the first fluid inlet 16a, and the fluid outlet One end of the channel 17 away from the filter body 1 forms a first fluid outlet 17a.

As shown in Figures 2 to 4, in the embodiment of the present utility model, the water inlet 11 and the water outlet 12 are arranged at intervals along the circumference of the filter body 1, and the first fluid inlet 16a and the first fluid outlet 17a are arranged along the filter body. 1, the first fluid inlet 16a and the first fluid outlet 17a are both arranged on the side of the water inlet 11 and the water outlet 12 away from the filter body 1 .

Wherein, the water inlet 11 and the water outlet 12 are arranged at intervals along the circumference of the filter body 1, so that the water flow can be filtered to the greatest extent; and the first fluid inlet 16a and the first fluid outlet 17a are all arranged between the water inlet 11 and The side of the water outlet 12 away from the filter body 1 can make better use of the movement in the opposite direction of the air flow and the water flow to effectively wash away the impurities attached to the filter screen.

Fig. 2 shows the schematic cross-sectional structural view of the filter device of the present utility model when filtering. The hollow arrow in Fig. 2 represents the flow direction of the water flow when the filter operation is carried out. Specifically, as shown in Fig. 2, the filter device When working (the maintenance and cleaning work of the filter element is not carried out at this time), the blowdown control valve 18, the first control valve 3 and the second control valve 4 are all in a closed state. Filtered by the filter element 14, the impurities in the water larger than the filter holes are left in the gap between the shell 13 and the outer periphery of the filter element 14, and the filtered water is discharged from the water outlet 12 and then enters the water pump to pressurize and work.

Fig. 4 shows the schematic cross-sectional structural diagram of the filter device of this embodiment when cleaning the filter element. In Fig. 4, the hollow arrows represent the flow direction of the water flow, while the solid arrows represent the flow direction of the pressurized fluid, that is, the pressurized gas , as shown in Figure 4, after the above-mentioned filter device has been used for a period of time, when maintenance is required, the pressurized cleaning part 2 can be used for backwashing. First, open the first control valve 3 for the inflow of pressurized gas and the second control valve 4 for the outflow of pressurized gas, and the air with a certain pressure is continuously blown outward from the inner wall of the filter element 14 through the delivery pipeline 21 and the injection pipeline 22 At the same time, water comes in from the water inlet 11, flows from top to bottom, and is discharged through the sewage outlet 19. When the air-flow was ejected from the injection port 2a of the injection pipe 22, the water in the accommodation cavity 141 of the filter core 14 was driven to flow out, and the impurities attached to the filter screen mesh on the periphery of the filter core 14 were washed away, and the air passed upwards through the first The fluid outlet 17a is discharged, and the impurities and sewage are discharged from the sewage outlet 19 . After the filter element 14 is cleaned, close the first control valve 3 and the blowdown control valve 18, and the work of maintaining and cleaning the filter device can be completed.

As shown in FIG. 5 , the utility model also provides a cleaning vehicle, including a chassis 200 and a filter device disposed under the chassis 200 , wherein the filter device is the aforementioned filter device 100 .

As shown in FIG. 5 , the cleaning vehicle also includes a water pump inlet pipe 201 , an auxiliary engine 203 , a water pump 204 , a fan 205 , a dustbin 206 and a water storage tank 207 .

On the automobile chassis 200 , the auxiliary engine 203 drives the fan 205 . The fan 205 generates a negative pressure in the dustbin 206, and sucks the dust swept in by the sweeping plate 300 back into the dustbin 206 through the suction nozzle 202 and the suction pipe 208. Simultaneously, the water in the water storage tank 207 enters the water pump 204 from the water pump inlet pipe 201 through the filter device 100, and then sprays out from the water pump outlet pipe 301 to the nozzle 209 for washing the floor or for other devices to use to complete the cleaning operation.

From the above description, it can be seen that the above-mentioned embodiments of the utility model have achieved the following technical effects: the filter device includes a housing, a filter element, a connecting seat and a pressure cleaning part arranged in the accommodation chamber of the filter element, and the pressure cleaning part The part includes a delivery pipeline and a plurality of injection pipelines communicated with the delivery pipeline, the plurality of injection pipelines are arranged at intervals along the circumference of the delivery pipeline and along the length direction of the delivery pipeline, and one end of the injection pipeline away from the delivery pipeline forms an injection port, The flow direction of the pressurized fluid ejected from the injection port is opposite to the flow direction of the water flow in the filter device, so that the impurities attached to the surface of the filter element can be effectively washed away, and the cleaning and maintenance of the filter element is facilitated.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. A filter device has a water inlet (11) for fluid to flow in and a water outlet (12) for fluid to flow out, the filter device includes a filter body (1), and the filter body (1) include: shell (13); A filter element (14), having a housing cavity (141), the filter element (14) is arranged inside the casing (13) to filter the fluid flowing into the casing (13), wherein the water outlet (12) is connected to the The accommodating cavity (141) communicates, and the water inlet (11) communicates with the inside of the housing (13); It is characterized in that, the filter device also includes a pressurized cleaning part (2), and the pressurized cleaning part (2) has a function that is arranged in the accommodating chamber (141) and sprays toward the side wall of the filter element (14). Injection port (2a) for pressurized fluid. 2. The filter device according to claim 1, characterized in that, the pressurized cleaning part (2) comprises a conveying pipeline (21) arranged axially along the filter element (14), and the injection port ( 2a) Spraying pressurized fluid radially outwards towards said cartridge (14) sidewalls. 3. The filter device according to claim 2, characterized in that, the pressurized cleaning part (2) also includes one or more sets of jet tube groups, and the jet tube groups include one or more The delivery pipeline (21) communicates with an injection pipeline (22), and an end of the injection pipeline (22) away from the delivery pipeline (21) forms the injection port (2a). 4. The filter device according to claim 3, characterized in that, the spray pipe group comprises a plurality of spray pipes (22), a plurality of spray pipes (22) along the conveying pipe (21) Axially spaced arrangement. 5. The filter device according to claim 3, characterized in that, the pressurized cleaning part (2) includes multiple sets of the spray tube groups, and multiple sets of the spray tube groups are arranged along the conveying pipeline (21) Circumferentially spaced. 6. The filter device according to any one of claims 1 to 4, wherein the filter device further comprises: a first fluid inlet (16a), communicated with the inside of the pressurized cleaning part (2) for the pressurized fluid to flow in; The first fluid outlet (17a) communicates with the inside of the housing (13) for the pressurized fluid to flow out. 7. The filter device of claim 6, further comprising: A first control valve (3), arranged at the first fluid inlet (16a) to control the on-off of the first fluid inlet (16a); The second control valve (4) is arranged at the first fluid outlet (17a) to control the on-off of the first fluid outlet (17a). 8. The filter device according to claim 6, characterized in that, the filter device further comprises a connection seat (15) connected to the housing (13) and the filter element (14) respectively, the connection The seat (15) has a fluid inlet channel (16) and a fluid outlet channel (17), the end of the fluid inlet channel (16) away from the filter body (1) forms the first fluid inlet (16a), One end of the fluid outlet channel (17) away from the filter body (1) forms the first fluid outlet (17a). 9. The filter device according to claim 6, characterized in that, the water inlet (11) and the water outlet (12) are arranged at intervals along the circumference of the filter body (1), and the first A fluid inlet (16a) and the first fluid outlet (17a) are arranged at intervals along the circumference of the filter body (1), and the first fluid inlet (16a) and the first fluid outlet (17a) Both are arranged on the side of the water inlet (11) and the water outlet (12) away from the filter body (1). 10. A cleaning vehicle, comprising a chassis and a filter device arranged under the chassis, characterized in that the filter device is the filter device according to any one of claims 1-9.