Oil-water separation filter convenient for mounting filter element

Abstract

The utility model discloses an oil-water separation filter convenient for mounting a filter element, which comprises an upper cover, the filter element and a filter element mounting bracket, and is characterized in that the upper end of the filter element mounting bracket is extruded and fixed in the upper cover, and the lower end of the filter element mounting bracket is fixedly connected with the filter element. A threaded cover plate is omitted, the filter element is directly mounted on the upper cover through the filter element mounting bracket, and during mounting, the filter element is fixed at the lower end of the filter element mounting bracket through a screw or a pin, and then the upper end of the filter element mounting bracket is extruded into the upper cover by external force; the filter element can be fixed to the upper cover after being extruded and deformed, a threaded cover is not needed for fixedly installing the filter element, the step of machining threads of the threaded cover is reduced, and the filter element installation support further has the flow guiding function and can guide oil filtered by the filter element to the liquid outlet hole.

Description

Technical Field

[0001] The utility model relates to an oil-water separation filter, in particular to an oil-water separation filter with a filter element that is convenient to install. Background Art

[0002] At present, the existing oil-water separation filter generally includes a shell, a threaded sealing cover, a spring and a filter element, wherein the filter element is accommodated in the cavity of the shell, the threaded sealing cover is sealed at the opening of the shell, the upper end of the filter element is against the threaded sealing cover, and the spring is against the bottom of the filter element. Since the spring will cause the filter element to swing under the impact of oil pressure, a certain gap will appear between the filter element and the threaded sealing cover, causing unfiltered oil to be discharged from the gap, affecting the filtering effect; and when assembling the filter element, external force is required to press and rotate the threaded sealing cover for assembly, which makes assembly more difficult. Summary of the invention

[0003] In order to overcome the shortcomings and deficiencies in the prior art, the utility model aims to provide an oil-water separation filter with a filter element that is easy to install.

[0004] The purpose of the utility model is achieved through the following technical solutions: an oil-water separation filter that is convenient for installing a filter element, comprising an upper cover, a filter element and a filter element mounting bracket, wherein the upper end of the filter element mounting bracket is extruded and fixed in the upper cover, and the lower end of the filter element mounting bracket is fixedly connected to the filter element. During installation, the filter element is first fixed to the lower end of the filter element mounting bracket by screws or pins, and then the upper end of the filter element mounting bracket is extruded into the upper cover. Since the upper end of the filter element mounting bracket has a certain elasticity, it can be fixed on the upper cover after being deformed by extrusion. A threaded cover is not required to fix and install the filter element, and the steps of processing threads of the threaded cover are also reduced. The filter element mounting bracket also has a diversion function, and can divert the oil filtered by the filter element to the liquid outlet.

[0005] As an improvement of the oil-water separation filter of the utility model for convenient installation of the filter element, the upper end of the filter element mounting bracket is a hollow extrusion part, the extrusion part is a conical structure with a large upper part and a small lower part, and an opening is provided in the middle of the upper end surface of the extrusion part. Under external force extrusion, the opening will be squeezed and deformed, so that the filter element mounting bracket is stuck in the upper cover.

[0006] As an improvement of the oil-water separation filter of the utility model for convenient installation of the filter element, the lower end of the filter element mounting bracket is provided with a guide channel, and a guide port is provided in the guide channel, and the cross section of the guide port is conical. The guide port is a conical structure with a large top and a small bottom, which can relieve the pressure of oil discharge.

[0007] As an improvement of the oil-water separation filter of the utility model, which is convenient for installing the filter element, the filter element includes a filter material and a U-shaped filter element outer cover, the filter material is contained in the filter element outer cover, the filter element outer cover has a plurality of meshes, the upper end of the filter element outer cover is sleeved on the lower end of the filter element mounting bracket and fixed with screws or pins. The filter element outer cover is in a grid shape, which can filter some impurities while passing the oil, thereby improving the filtering effect.

[0008] As an improvement of the oil-water separation filter of the utility model for convenient installation of the filter element, a liquid outlet is provided in the middle of the upper end of the upper cover, a rubber plug is provided in the liquid outlet, the lower end of the rubber plug extends into the extrusion part, and a plurality of liquid inlet holes are provided at intervals on the side of the upper cover.

[0009] As an improvement of the oil-water separation filter of the utility model for convenient installation of the filter element, the lower edge of the upper cover is bent outward to form a U-shaped clamping portion, and one end of the U-shaped clamping portion is provided with a first curling edge.

[0010] As an improvement of the oil-water separation filter for convenient installation of the filter element of the utility model, it also includes a housing, the filter element is accommodated in the housing, the upper end opening edge of the housing is provided with a second curling edge, the second curling edge is connected to the first curling edge, and the U-shaped clamping portion is squeezed and connected in the upper end opening of the housing. The upper cover and the housing are connected in a curling manner, which can avoid the step of thread processing and reduce the thickness of the upper cover and the housing.

[0011] As an improvement of the oil-water separation filter of the utility model for convenient installation of the filter element, the bottom of the cavity of the shell is sunken downward to form a mounting groove, a drain valve nut is welded and fixed in the mounting groove, a drain valve connection hole is provided at the bottom of the mounting groove, and the drain valve is screwed to the drain valve nut. The filtered water will sink to the bottom of the cavity of the shell, and the filtered water inside can be manually discharged regularly.

[0012] As an improvement of the oil-water separation filter of the utility model which is convenient for installing the filter element, unfiltered oil enters the cavity of the shell through the liquid inlet hole of the upper cover, the oil in the cavity of the shell is filtered by the filter element and then enters the guide channel, and the oil in the guide channel is discharged from the liquid outlet hole.

[0013] The beneficial effects of the utility model are as follows: the utility model eliminates the need for a threaded cover plate, and the filter element is directly installed on the upper cover through the filter element installation bracket. During installation, the filter element is first fixed to the lower end of the filter element installation bracket by screws or pins, and then the upper end of the filter element installation bracket is externally squeezed into the upper cover. Since the upper end of the filter element installation bracket has a certain elasticity, it can be fixed on the upper cover after being squeezed and deformed. A threaded cover is not needed to fix and install the filter element, and the steps of processing threads of the threaded cover are also reduced. The filter element installation bracket also has a diversion function, and can divert the oil filtered by the filter element to the liquid outlet hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional view of the utility model;

[0015] Figure 2 This is a schematic diagram of the filter element mounting bracket structure of the utility model;

[0016] The accompanying drawings are marked as follows: 1. upper cover, 2. filter element, 3. filter element mounting bracket, 4. rubber plug, 5. shell, 6. drain valve nut, 7. drain valve, 11. U-shaped clamping portion, 12. first curling edge, 21. filter element outer cover, 31. extrusion portion, 32. opening, 33. diversion channel, 34. diversion port, 51. second curling edge. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0019] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0020] like Figure 1-Figure 2 As shown, an oil-water separation filter for convenient installation of a filter element comprises an upper cover 1, a filter element 2 and a filter element mounting bracket 3. The upper end of the filter element mounting bracket 3 is squeezed and fixed in the upper cover 1, and the lower end of the filter element mounting bracket 3 is fixedly connected to the filter element 2. During installation, the filter element 2 is first fixed to the lower end of the filter element mounting bracket 3 by screws or pins, and then the upper end of the filter element mounting bracket 3 is squeezed into the upper cover 1. Since the upper end of the filter element mounting bracket 3 has a certain elasticity, it can be fixed on the upper cover 1 after being squeezed and deformed. A threaded cover is not required to fix and install the filter element 2, and the steps of processing the threads of the threaded cover are also reduced. The filter element mounting bracket also has a diversion function, which can divert the oil filtered by the filter element to the liquid outlet.

[0021] Preferably, the upper end of the filter element mounting bracket 3 is a hollow extrusion portion 31, which is a conical structure with a larger upper portion and a smaller lower portion, and an opening 32 is provided in the middle of the upper end surface of the extrusion portion 31. Under external force, the opening 32 will be squeezed and deformed, so that the filter element mounting bracket 3 is stuck in the upper cover 1.

[0022] Preferably, a guide channel 33 is provided at the lower end of the filter element mounting bracket 3, and a guide port 34 is provided in the guide channel 33. The guide port 34 has a conical cross section. The guide port 34 has a conical structure with a large top and a small bottom, which can relieve the pressure of oil discharge.

[0023] Preferably, the filter element 2 includes a filter material and a U-shaped filter element outer cover 21, the filter material is contained in the filter element outer cover 21, the filter element outer cover 21 has a plurality of meshes, the upper end of the filter element outer cover 21 is sleeved on the lower end of the filter element mounting bracket 3 and fixed with screws or pins. The filter element outer cover 21 is in a grid shape, which can filter some impurities while passing the oil, thereby improving the filtering effect.

[0024] Preferably, a liquid outlet is provided in the middle of the upper end of the upper cover 1 , a rubber plug 4 is provided in the liquid outlet, the lower end of the rubber plug 4 extends into the extrusion portion 31 , and a plurality of liquid inlet holes are provided at intervals on the side of the upper cover 1 .

[0025] Preferably, the lower edge of the upper cover 1 is bent outward to form a U-shaped clamping portion 11 , and a first curling edge 12 is provided at one end of the U-shaped clamping portion 11 .

[0026] Preferably, it further comprises a housing 5, the filter element 2 is accommodated in the housing 5, the upper opening edge of the housing 5 is provided with a second curling edge 51, the second curling edge 51 is connected to the first curling edge 12, and the U-shaped clamping portion 11 is squeezed and connected in the upper opening of the housing 5. The upper cover 1 and the housing 5 are connected by curling, which can avoid the step of thread processing and reduce the thickness of the upper cover and the housing.

[0027] Preferably, the bottom of the cavity of the housing 5 is sunken with a mounting groove 52, a drain valve nut 6 is welded and fixed in the mounting groove 52, a drain valve connection hole is provided at the bottom of the mounting groove 52, and the drain valve 7 is screwed to the drain valve nut 6. The filtered water will sink to the bottom of the cavity of the housing, and the filtered water inside can be manually discharged regularly.

[0028] Preferably, unfiltered oil enters the cavity of the shell 5 through the liquid inlet hole of the upper cover 1, the oil in the cavity of the shell 5 is filtered by the filter element 2 and then enters the diversion channel, and the oil in the diversion channel is discharged from the liquid outlet hole.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and structures of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil-water separation filter for convenient installation of a filter element, comprising an upper cover, a filter element and a filter element mounting bracket, characterized in that: The upper end of the filter element mounting bracket is extruded and fixed in the upper cover, the lower end of the filter element mounting bracket is fixedly connected to the filter element, the lower end edge of the upper cover is bent outward to form a U-shaped clamping portion, one end of the U-shaped clamping portion is provided with a first curling edge, and also includes a shell, the filter element is accommodated in the shell, the upper end opening edge of the shell is provided with a second curling edge, the second curling edge is connected to the first curling edge, and the U-shaped clamping portion is extruded and connected in the upper end opening of the shell.

2. The oil-water separation filter with easy installation of filter element according to claim 1, characterized in that: The upper end of the filter element mounting bracket is a hollow extrusion portion, and the extrusion portion is a conical structure that is larger at the top and smaller at the bottom. An opening is provided in the middle of the upper end surface of the extrusion portion.

3. The oil-water separation filter with easy installation of filter element according to claim 2, characterized in that: A flow guide channel is provided at the lower end of the filter element mounting bracket, a flow guide port is provided in the flow guide channel, and a cross section of the flow guide port is conical.

4. The oil-water separation filter with easy installation of filter element according to claim 3, characterized in that: The filter element comprises a filter material and a U-shaped filter element outer cover, wherein the filter material is contained in the filter element outer cover, the filter element outer cover has a plurality of mesh holes, and the upper end of the filter element outer cover is sleeved on the lower end of the filter element mounting bracket and fixed with screws or pins.

5. The oil-water separation filter with easy installation of filter element according to claim 4, characterized in that: A liquid outlet hole is arranged in the middle of the upper end of the upper cover, a rubber plug is arranged in the liquid outlet hole, and the lower end of the rubber plug extends into the extrusion part. A plurality of liquid inlet holes are arranged at intervals on the side of the upper cover.

6. The oil-water separation filter with easy installation of filter element according to claim 5, characterized in that: The bottom of the cavity of the shell is recessed downward to form a mounting groove, a drain valve nut is welded and fixed in the mounting groove, a drain valve connecting hole is provided at the bottom of the mounting groove, and the drain valve is threadedly connected to the drain valve nut.

7. The oil-water separation filter with easy installation of filter element according to claim 6, characterized in that: Unfiltered oil enters the cavity of the shell through the liquid inlet hole of the upper cover, the oil in the cavity of the shell is filtered by the filter element and then enters the guide channel, and the oil in the guide channel is discharged from the liquid outlet hole.

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