CN218653260U - An oil suction filter device - Google Patents

Abstract

The utility model relates to the technical field of filters, in particular to an oil-absorbing filtering device, which includes a filter box cover assembly, a filter bin assembly and a filter assembly. An oil inlet pipeline is opened on the top of the filter box cover. The bottom is fixed with a spring, and the end of the spring far away from the filter box cover is fixedly connected with a ring-shaped brush. The side of the filter chamber is provided with an oil outlet pipe, and the inside of the first filter element is covered with a second filter element. In the process, the oil enters the filter assembly from the oil inlet pipe to be filtered. At this time, the air blowing pump is turned on, and the annular brush is moved up and down between the two filter elements by the blowing force of the air blowing pump. The filter hole is cleaned, so that the filter hole will not be blocked, and the oil penetrates from the first filter element into the filter chamber, and then flows out through the oil outlet pipeline, thus avoiding the decrease of the filtering effect caused by the blockage of the filter element.

Description

An oil suction filter device

technical field

The utility model relates to the technical field of filters, in particular to an oil-absorbing filter device.

Background technique

The oil suction filter is used to protect the oil pump and other hydraulic components to avoid inhalation of impurities, effectively control the pollution of the hydraulic system, and adjust the cleanliness of the hydraulic system. The oil suction filter is widely used in the hydraulic system.

When the existing oil suction filter is filtering, the impurities in the oil will adhere to the filter element, causing the filter device to be blocked, and a single filter element will not filter the impurities enough. In order to solve the above-mentioned problems:

Existing oil suction filter devices are:

The comparative document CN202220846041.2 discloses an oil-absorbing filter, "By providing a housing assembly, using two sets of flanges and using flange covers for sealing, the structure is simple, and it is a commonly used part in the industry, which is convenient for batches of filters. It is produced and fixed by bolts, which is convenient for rapid maintenance and replacement of the filter element. The threaded hole is used to fix the entire filter to the bracket. The structure is simple and easy to operate. Through the oil outlet valve, the oil enters the filter , from the inside to the outside through the oil-absorbing filter element, when the internal pressure of the filter element gradually rises to a certain value, the bypass valve on the end cover of the other end of the filter element will be opened, and the oil will directly flow into the filter outlet, which can buffer the hydraulic oil in the filter element The hydraulic oil can be fully filtered when the internal pressure of the filter element gradually rises to a certain value, the bypass valve core on the other end of the filter element will be opened, and the oil will flow directly into the outlet pipe of the filter element. Oil."

However, in the process of using the device, after the filter element is used for a long time, the surface or adhesion of oil residue, etc., will cause the blockage of the filter element, and then affect the filtering effect of the filter element. After the filter element is blocked, the removal of the filter element is not convenient enough. Therefore, the utility model proposes An oil suction filter device.

Utility model content

The purpose of this utility model is to solve the shortcomings in the prior art. In the instrument filter device, the filtration of a single filter element makes the impurity filtration of the oil not sufficient, thereby affecting the service life of the instrument.

In order to achieve the above object, the utility model adopts the following technical solutions: an oil suction filter device, including a filter box cover assembly, a filter chamber assembly and a filter assembly, the filter box cover assembly includes a filter box cover, the filter box cover An oil inlet pipe is opened on the top, and a spring is fixed on the bottom of the filter box cover, and an annular brush is fixedly connected to the end of the spring away from the filter box cover, and the filter box assembly includes a filter box, and the side of the filter box An oil outlet pipeline is opened, the filter assembly includes a first filter element, the inside of the first filter element is covered with a second filter element, and the bottom of the filter box cover is provided with a first limit ring groove and a second limit ring groove , the tops of the first filter element and the second filter element are snapped into the first limiting ring groove and the second limiting ring groove correspondingly.

The technical effect of adopting the above further solution is that the ring-shaped brush can move up and down under the action of the blowing force through the setting of the spring, and the setting of the double-layer filter element can make the filtering effect of the oil better.

As a preferred embodiment, the top of the filter box cover is fixedly connected with an air pipe, and there are two air pipes arranged symmetrically with the central axis of the filter box cover, and the top of the air pipe is provided with an air plug. The air tube is located directly above the outer ring of the annular brush.

The technical effect of adopting the above further scheme is: through the setting of the air pipe, an external air pump can be installed, so that the ring brush can be cleaned up and down between the filter elements under the push of the air flow, which is efficient and convenient. Time closed to prevent oil pollution.

As a preferred embodiment, the inner and outer rings of the annular brush are uniformly provided with fiber bristles.

The technical effect of adopting the above further solution is: the fiber bristles arranged on the annular brush can effectively clean the impurities on the filter element, so that the filter element will not be blocked during the filtering process.

As a preferred embodiment, the annular brush is arranged between the first filter element and the second filter element, and the annular brush slides up and down between the inner circle of the first filter element and the outer circle of the second filter element.

The technical effect of adopting the above further solution is: by setting the ring-shaped brush between the two filter elements, the impurities on the filter elements can be effectively cleaned, and the oil filtration is also accelerated during the cleaning process of moving up and down.

As a preferred embodiment, the bottom of the filter box cover is fixed with a limit block, and the limit blocks are arranged on both sides of the bottom of the filter box cover, and the top of the filter chamber assembly is provided with a limit slot. The limit block is inserted in the limit groove to connect the filter box cover assembly and the filter chamber assembly.

The technical effect of adopting the above further solution is: through the design of the limit block and the limit groove, the connection between the filter box cover and the filter chamber can be made stable without oil leakage.

As a preferred embodiment, a limit screw hole is provided on the limit block, the same limit screw hole as the limit block is opened on the side of the filter chamber, and a bolt is inserted into the limit screw hole , the bolts are provided with sealing rings.

The technical effect of adopting the above further solution is: the oil liquid will not flow out from the limit screw hole through the sealing ring, and the setting of the bolt can make the filter box cover assembly and the filter chamber assembly connected and fixed.

Compared with the prior art, the utility model has the advantages and positive effects that:

In working use, the oil enters the filter assembly from the oil inlet pipe, first passes through the first layer of filtration of the second filter element, and then passes through the first filter element for the second layer of filtration. At this time, the air plug is opened, the air pipe is connected to the air pump, and the annular capillary The brush moves up and down between the first filter element and the second filter element under the blowing force of the oil inlet pipe, and cleans the filter holes on the first filter element and the second filter element, so that the filter holes will not be blocked, and the oil penetrates from the first filter element to the Inside the filter chamber, it flows out through the oil outlet pipeline to avoid the decrease of the filtering effect caused by the clogging of the filter element.

Secondly, when the device needs to be cleaned, unscrew the bolt, take the bolt out and take off the filter box cover assembly, so that the filter assembly can be pulled out for replacement and maintenance, which is convenient and quick, and at the same time, the inside of the filter chamber can be cleaned.

Description of drawings

Fig. 1 is a schematic diagram of a three-dimensional structure of an oil-absorbing filter device provided by the utility model;

Fig. 2 is a structural schematic diagram of the filter box cover assembly in an oil-absorbing filter device provided by the utility model;

Fig. 3 is a structural schematic diagram of a filter chamber assembly in an oil-absorbing filter device provided by the present invention;

Fig. 4 is a structural schematic diagram of a filter element in an oil-absorbing filter device provided by the utility model;

Fig. 5 is a schematic diagram of the structure of the bottom surface of the filter box cover assembly in an oil suction filter device provided by the present invention.

illustration

1. Filter box cover assembly; 11. Filter box cover; 12. Oil inlet pipe; 13. Air pipe; 131. Air plug; 14. Limit block; 141. Limit screw hole; 15. Spring; 16. Ring brush ; 161, fiber bristles; 17, the first limit ring groove; 18, the second limit ring groove;

2. Filter bin assembly; 21. Filter bin; 22. Oil outlet pipeline; 23. Limiting slot; 24. Bolt;

3. Filter assembly; 31. The first filter element; 32. The second filter element.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Example 1

As shown in Figures 1-5, the oil suction filter device of this embodiment includes a filter box cover assembly 1, a filter chamber assembly 2 and a filter assembly 3, the filter box cover assembly 1 includes a filter box cover 11, and the top of the filter box cover 11 is opened There is an oil inlet pipeline 12, and a spring 15 is fixed on the bottom of the filter box cover 11. By setting the spring 15, the annular brush 16 can move up and down under the action of the blowing force. The end of the spring 15 away from the filter box cover 11 is fixedly connected with a Ring-shaped brush 16, the filter chamber assembly 2 includes a filter chamber 21, the side of the filter chamber 21 is provided with an oil outlet pipeline 22, the filter assembly 3 includes a first filter element 31, and the inside of the first filter element 31 is covered with a second filter element 32, double-layer The setting of the filter element can make the filtering effect of the oil better. The bottom of the filter box cover 11 is provided with a first limit ring groove 17 and a second limit ring groove 18, and the top of the first filter element 31 and the second filter element 32 are correspondingly locked Connected to the first limit ring groove 17 and the second limit ring groove 18.

Example 2

As shown in Figures 1-5, the utility model provides a technical solution: the filter box cover 11 is fixedly connected with an air pipe 13, two air pipes 13 are arranged symmetrically with the central axis of the filter box cover 11, and the top of the air pipe 13 There is an air plug 131, and the air pipe 13 is located directly above the outer ring of the ring brush 16. Through the setting of the air pipe 13, an external air pump can be installed, so that the ring brush 16 can be cleaned up and down between the filter elements under the push of the air flow, which is efficient and convenient , the setting of the air plug 131 can be closed when the air pipe 13 does not need to be used to prevent oil pollution. 161 can effectively clean up the impurities on the filter element, so that the filter element will not be blocked during the filtration process. The annular brush 16 is arranged between the first filter element 31 and the second filter element 32, and the annular brush 16 is between the inner ring of the first filter element 31 and the The outer rings of the second filter element 32 slide up and down, and the ring-shaped brush 16 is arranged between the two filter elements, which can effectively clean up the impurities on the filter element, and also accelerate the filtration of oil during the cleaning process of moving up and down.

Example 3

As shown in Figure 1 and Figure 3, the utility model provides a technical solution: the bottom of the filter box cover 11 is fixed with a limit block 14, the limit block 14 is arranged on both sides of the bottom of the filter box cover 11, the filter chamber assembly 2 A limit slot 23 is opened on the top, and the limit block 14 is inserted in the limit slot 23 to connect the filter box cover assembly 1 and the filter chamber assembly 2. Through the design of the limit block 14 and the limit slot 23, the filter box cover 11 The connection with the filter chamber 21 is stable and will not cause oil leakage. A limit screw hole 141 is provided on the limit block 14. The side of the filter chamber 21 is provided with the same limit screw hole 141 as the limit block 14. Bolts 24 are inserted into the screw holes 141 , and the oil will not flow out from the limiting screw holes 141 by providing a sealing ring, and the setting of the bolts 24 can make the filter box cover assembly 1 and the filter chamber assembly 2 be connected and fixed.

working principle

As shown in Figures 1 to 5, during work, the oil enters the filter assembly 3 from the oil inlet pipe 12, first passes through the second filter element 32 for one layer of filtration, and then passes through the first filter element 31 for the second layer of filtration At this time, the air plug 131 is opened, the air pipe 13 is externally connected to the air pump, and the annular brush 16 is subjected to the blowing force of the oil inlet pipeline 12 to move up and down between the first filter element 31 and the second filter element 32, and the first filter element 31 and the second filter element 32 The filter holes on the filter are cleaned, so that the filter holes will not be blocked, and the oil penetrates from the first filter element 31 to the inside of the filter chamber 21, and then flows out through the oil outlet pipe 22.

Secondly, when the device needs to be cleaned, unscrew the bolt 24, take off the filter box cover assembly 1 after the bolt 24 is taken out, thereby extracting the filter assembly 3 for replacement and maintenance, which is convenient and quick, and the inside of the filter chamber 21 can be cleaned up simultaneously.

The above is only a preferred embodiment of the utility model, and is not intended to limit the utility model in other forms. Any skilled person who is familiar with this profession may use the technical content disclosed above to change or remodel it into an equivalent change. The equivalent embodiments are applied to other fields, but any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present utility model still belong to the technical solution of the present utility model scope of protection.

Claims (6)

1. The utility model provides an oil absorption filter equipment, includes filter cartridge cover subassembly (1), filter storehouse subassembly (2) and filtering component (3), its characterized in that, filter cartridge cover subassembly (1) is including filtering lid (11), oil inlet pipe way (12) have been seted up at the top of filtering lid (11), the bottom of filtering lid (11) is fixed with spring (15), the equal fixedly connected with annular brush (16) of one end of filtering lid (11) is kept away from in spring (15), filter storehouse subassembly (2) are including filtering storehouse (21), oil outlet pipe way (22) have been seted up to the side of filtering storehouse (21), filtering component (3) are including first filter core (31), the inside cover of first filter core (31) has second filter core (32), first spacing annular (17) and the spacing annular (18) of second have been seted up to the bottom of filtering lid (11), first filter core (31) correspond the joint on first spacing annular (17) and the spacing annular (18) of second filter core (32) with the top of second filter core (32).

2. An oil absorbing filter device according to claim 1, wherein: the top of filter box lid (11) is fixed the intercommunication has trachea (13), trachea (13) are provided with two and set up with the center pin symmetry of filter box lid (11), the top of trachea (13) is equipped with air lock (131), trachea (13) are located directly over the outer lane of annular brush (16).

3. An oil absorbing filter as set forth in claim 2 in which: the inner ring and the outer ring of the annular brush (16) are uniformly provided with fiber bristles (161).

4. An oil absorbing filter as set forth in claim 3 in which: the annular brush (16) is arranged between the first filter element (31) and the second filter element (32), and the annular brush (16) slides up and down between the inner ring of the first filter element (31) and the outer ring of the second filter element (32).

5. An oil absorbing filter as set forth in claim 1 in which: the bottom of filter box cover (11) is fixed with stopper (14), stopper (14) set up the both sides in filter box cover (11) bottom, spacing groove (23) have been seted up at the top of filter cartridge subassembly (2), stopper (14) are inserted and are established and filter cartridge subassembly (1) and filter cartridge subassembly (2) of connection in spacing groove (23).

6. An oil absorbing filter as set forth in claim 5 in which: the filter cartridge is characterized in that a limiting screw hole (141) is formed in the limiting block (14), a limiting screw hole (141) identical to the limiting block (14) is formed in the side face of the filter cartridge (21), a bolt (24) is inserted into the limiting screw hole (141), and a sealing ring is arranged on the bolt (24).

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